CN201844453U - Concentrated heating system - Google Patents
Concentrated heating system Download PDFInfo
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- CN201844453U CN201844453U CN2010205788935U CN201020578893U CN201844453U CN 201844453 U CN201844453 U CN 201844453U CN 2010205788935 U CN2010205788935 U CN 2010205788935U CN 201020578893 U CN201020578893 U CN 201020578893U CN 201844453 U CN201844453 U CN 201844453U
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Abstract
The utility model discloses a concentrated heating system comprising a heat supply pipe network that has a tree-form structure and takes a master heat supply device as a root node, a control valve is arranged on a pipeline of a user end, a branch return pipe of a branch pipe network is provided with a first temperature collecting device, and a main pipeline of the branch pipe network is provided with a first flow control device; a layer larger than the branch pipe network is provided with a current layer media pressure collector and a second temperature collector on a current layer main pipeline, as well as a pressure control device arranged on the current media pressure collector, corresponding to the current layer media pressure collector, so as to control the media pressure value of the current main pipeline within the preset range, and a second flow control device is arranged on a pipeline of the upper layer connected to a layer sub network. The concentrated heating system can realize the heat supply balance, save energy consumption, and is easy to realize household metering.
Description
Technical field
The utility model relates to a kind of central heating system.
Background technology
The city central heating system has been built in the northern China city and has been used the several years.But be subjected to the restriction of current various technology, still have following several respects problem at present:
1. uneven heating weighs, and the heating effect difference is bigger.
In present city central heating system, exist the situation of uneven heating weighing apparatus.Be in particular in that higher apart from the user side water pressure that heat exchange station is near more, water temperature is also high more, therefore corresponding heatsink temperature is also higher relatively; Otherwise then water pressure is lower, and temperature is also just relatively low.The heating effect difference of existing heating system is bigger.
2. the situation that has energy serious waste.
Because heat supply is unbalanced, the company of heat supply simultaneously has to expend higher fuel and electric power to guarantee initial water temperature and discharge pressure for guaranteeing the heat demand of heat supply pipeline terminal temperature difference.Can cause the user room temperature nearer too high like this apart from heat exchange station.A lot of resident families adopt the mode of windowing to dispel the heat, and have caused a large amount of energy wastes.
The mode by the heating area collection of charges is mainly taked in current city central heating, so the user generally makes interior radiator be in normally open.Heat supply company consumes and is wasting a large amount of energy for unmanned room heat supply.
3. " household metering " is difficult to promote.
Just propose the existing heat of reform from 8 ministries, commissions and bureaus such as the Ministry of Construction in 2003 and take account form, unite and issued " about the instruction of urban heating system reform pilot work ".The now over and done with time in 7 years, but " household metering " fail to popularize so far, even do not have substantial progress.At present a lot of new buildings have changed outmoded heat supply pipeline design and heat meter have been installed, and have possessed the hardware foundation of " household metering ", but except individual other pilot sub-district, the hardware of configuration in early stage is still by idle.The main reason that " household metering " is difficult to promote is that heat supply company can't determine heating load in real time, and the energy consumption of heat supply company can't be effectively controlled.Exist imbalance between supply and demand between the operating cost of " household metering " and heat supply company.Utilize the improvement cost of prior art high, and performance difficulty.
Summary of the invention
Therefore, the utility model provides a kind of and can realize heat supply equilibrium, energy efficient in order to overcome existing central heating system uneven heating weighing apparatus, energy consumption is high and is difficult to realize the defective of household metering, and is easy to realize the central heating system of the defective of household metering.
Central heating system according to an aspect of technical solutions of the utility model:
This utility model central heating system, comprise with total heating plant being the heating network of the tree structure of root node, user side forms the leaf node of this heating network, the father node of user side and with the corresponding leaf node of this father node by the interconnected formation of heat supplying pipeline branch pipe network, the pipeline of user side is provided with control valve, and branch's return pipe of branch's pipe network is provided with first temperature collecting device, and on the main conduit of branch's pipe network, be provided with the first flow control device, adjust the aperture of described first flow control device with the temperature data that is collected according to described first temperature collecting device;
Layer greater than branch's pipe network all is being provided with when the anterior layer medium pressure acquisition device and second temperature collecting device on the anterior layer main conduit, and be arranged on the anterior layer main conduit corresponding to the pressure control device that deserves anterior layer medium pressure acquisition device, to control medium force value on the current main conduit in predetermined scope, the pipeline that the while upper strata is interconnected to this straton net is provided with second volume control device, controls the aperture of described second volume control device with the temperature value of being gathered according to described second temperature collecting device.
According to the technical solution of the utility model, its principle is by the discharge of controlling each branch's pipe network and with the discharge pressure of mode medium of feedback, realizes water temperature steady in appropriate scope of each branch's pipe network backwater end in conjunction with these two aspects.This technology can realize the effect of the following aspects:
At first this programme can be realized balanced heating.
Than existing heating system and method, this programme is a pressure control unit with branch's pipe network, in the control of heat supply present pressure of part terrain in this programme, thereby, utilize this programme can realize the balanced heating of the pipe network father of central heating system branch layer, the water pressure of each branch node in the pipe network father of the balance branch layer.
Moreover, can realize consuming energy as required.
Utilize this programme can realize the power consumption as required of central heating system.So-called " power consumption as required " is meant that in real time the heat according to user's request carries out heat supply, and the consumption of fuel (boiler) and electric power energy (water pump) is directly proportional with heat demand.That is to say that need the heat of supply many, the energy of consumption is just many; Need the heat of supply little, the energy of consumption is just little.Simultaneously, each user when withdrawing from a room, just can turn off the control valve in its room unwanted the time.To sum up, the control mode on this lower floor restriction upper strata is saved layer by layer, thus situation about effectively avoiding waste.
The 3rd, this programme is applicable to the newly-built of heating network and transforms.
This technology can apply to newly-built central heating system, also applicable to the transformation to existing central heating system.Those skilled in the art knows, for satisfying the needs of household metering, often will build auxiliary and huge data acquisition control network at present, in order to satisfy long-distance transmissions, often needs to lay huge network, realizes that difficulty is bigger.And the control of this programme, each layer is all controlled based on this layer parameter, bottom carries out by pressure of supply water successively to the feedback of high level, also only need to detect its pressure specific to root node, do not need long-range transfer of data, thereby make that this programme is easy to realize, newly-built and improvement cost is relatively low.
Relate to household metering in addition, the easier realization of this programme sharing step by step, also be easy to the realization of household metering.
For said central heating system, the described anterior layer medium pressure acquisition device of working as is arranged at supplying on the pipe when the anterior layer main conduit.
Above-mentioned central heating system, described second temperature collecting device be arranged at respective subnet main conduit on the pipe.
Above-mentioned central heating system all mainly is to be made of heat exchanger except that root node greater than the node of the layer of branch's pipe network, and correspondingly, the subcycle pipe network of each node correspondence all is provided with water-supply apparatus, and this water-supply apparatus is as described pressure control device.
Above-mentioned central heating system, described control valve are manual ball valve.
Above-mentioned central heating system, the number of plies of described heating network are three layers.
Above-mentioned central heating system, described water-supply apparatus are a plurality of variable frequency water supply pumps in parallel.
Description of drawings
Below in conjunction with Figure of description in detail the technical solution of the utility model is described in detail, makes those skilled in the art better understand the utility model, wherein:
Fig. 1 is the structural representation according to the secondary pipe network of a kind of central heating system of technical solutions of the utility model.
Fig. 2 is a pipe network structure schematic diagram according to a kind of central heating system of technical solutions of the utility model.
Among the figure: 1, user side, 2, branch's pipe network, 3, control valve, 4, branch is for pipe, 5, branch's return pipe, 6, branch valve, 7, first temperature collecting device, 8, the first flow control device, 9, main return pipe, 10, outlet pipe, 11, water inlet pipe, 12, second volume control device, 13, heat exchanger, 14, the first medium parameter detecting volume control device, 15, water-supply apparatus, 16, pressure-detecting device, 17, main inlet pipe, 18, boiler, 19, the second medium parameter detecting volume control device, 20, total water-supply apparatus, 21, check-valves, 22, total return pipe, 23, always go out pipe.
The specific embodiment
Central heating system according to technical solutions of the utility model can be transformed existing central heating system; Existing central heating system may comprise the sandwich construction of the defined tree network of this programme; Because as previously mentioned; The layer that is higher than branch's pipe network in this programme all adopts same control mode; Therefore; If those skilled in the art has understood the control mode of one deck wherein; Just can understand the originally control mode of other similar layers; Therefore; Below in conjunction with a concrete elaboration the technical solution of the utility model of heating system of relatively simplifying
With reference to Figure of description 1 and 2, wherein heat exchanger 13 has constituted a node, and this node topology forms secondary pipe network, and boiler 18 constitutes root node, just total heating plant.So:
If the central heating system that pipe network shown in Figure of description 1 and 2 and secondary pipe network constitute, comprise with total heating plant, just boiler 18 is the heating network of the tree structure of root node, user side 1 forms the leaf node of this heating network, the father node of user side and with the corresponding leaf node of this father node by the interconnected formation of heat supplying pipeline branch pipe network 2, the pipeline of user side is provided with control valve 3, and branch's return pipe 5 of branch's pipe network is provided with first temperature collecting device 7, and on the main conduit of branch's pipe network, be provided with first flow control device 8, adjust the aperture of described first flow control device with the temperature data that is collected according to described first temperature collecting device;
Layer greater than branch's pipe network all is being provided with when the anterior layer medium pressure acquisition device and second temperature collecting device on the anterior layer main conduit, and be arranged on the anterior layer main conduit corresponding to the pressure control device that deserves anterior layer medium pressure acquisition device, to control medium force value on the current main conduit in predetermined scope, the pipeline that the while upper strata is interconnected to this straton net is provided with second volume control device 12, controls the aperture of described second volume control device with the temperature value of being gathered according to described second temperature collecting device.
It should be noted that the first medium parameter detecting volume control device 14 in the accompanying drawing 1 and the second medium parameter detecting volume control device 19 in the accompanying drawing 2 in addition, statement should be the test point of flow-control point, pressure and temperature definitely, it is a spot, so accordingly, relevant detection and control device need be set, certainly, install not necessarily compound, say it can is compound use in general sense, second temperature collecting device and current medium pressure acquisition device should be contained on this spot in the following in fact preferred implementation of saying.
Because the control of user side flow, be reflected in the variation that branched pipe is a pressure and temperature on the net, and branched pipe Netcom excess temperature is controlled flow, the pressure that then is reflected in its upper strata pipe network again changes, for avoiding the heating plant overload, just need turn down its load, certainly, for the low excessively situation of set pressure, the load that then needs to improve heating plant.
Selection as for temperature collecting device, be mainly reflected in the selection of corresponding control assembly, certain relevance is arranged, if adopt traditional relay contact system, a little less than it selects free degree a little a bit, if adopt the intelligent element of coupling, as controller, then the leeway of Xuan Zeing is big, certainly, at present a lot of said corresponding control assemblies all are integrated with control element, such as flow control valve.These general selection of components have belonged to a kind of selection of routine in present central heating system, do not repeat them here.
About medium, based on the water of the additive that mixed, certainly may each layer different, top may be the higher steam of temperature, bottom be exactly the relatively low water of temperature.
As for the selection of pressure preset range, mainly be in the selection according to safe pressure and economic pressures, these also all belong to known selection mode, and the emphasis of this programme lays particular emphasis in the selection of control mode.
Is the maximum point that pressure is sent in view of medium pressure to what have the greatest impact when anterior layer, just main conduit supplies on the pipe, therefore, preferably, the described anterior layer medium pressure acquisition device of working as is arranged on the confession pipe of anterior layer main conduit, considers it all is preferable pressure acquisition point from security and economy aspect.
Say objectively, environment temperature is the most important factor of decision central heating, if environment temperature is than higher, the needs that also do not have central heating, therefore, described second temperature collecting device be arranged at respective subnet main conduit on the pipe, to set up the outlet temperature of medium according to the ambient air temperature value, the setting of outlet temperature is except the adjustment of heat exchanger, on the now total heating plant of final body, if the adjustment of heat exchanger be according to the heat supply of its place layer change carry out, the adjustment of so total heating plant on the present energy consumption of final body, is vital node then.
Certainly, the way of economic operation of macroscopic view has determined that people's life is more comparatively speaking, final decision concentrate on mostly on several timing nodes based on the adjustment of the central heating system of this programme, such as the commuter time, during weekend, vacation etc., the frequency of adjusting not is very big, and the influence on system operation that the oneself of individual user's end adjusts integral body is not very big, is to realize very easily from the consideration of adjusting economy property yet.
Greater than branch's pipe network the layer node all mainly be to constitute except that root node by heat exchanger, this also is the principal mode of newly-built heating network, but have more practical meaning with respect to native system, be convenient to the adjustment of layering and the end at final control point, be beneficial to the realization of energy-saving and cost-reducing final purpose, correspondingly, the subcycle pipe network of each node correspondence all is provided with independently water-supply apparatus and then is inevitable and has selected, and this water-supply apparatus is as described pressure control device.
For ease of user's use, described control valve is a manual ball valve, and cost is low, and control is convenient.
Preferably, the number of plies of described heating network is three layers, says it should is three layers of pipe network on Fig. 1, the central heating system stricti jurise shown in Figure 2, and only root node not can be regarded as one deck, branch's pipe network can qualitatively be a building so, perhaps a unit is considered from the economy of long-range conveying, so for avoiding the line loss of delivery phase, be necessary the scale of function system in the restriction set, certainly, the too small economy that also is unfavorable for embodying central heating system of scale, preferable is exactly three layers of pipe network system.
Preferably, described water-supply apparatus is a plurality of variable frequency water supply pumps in parallel, is convenient to adjust, and can adjust flow and pressure by frequency.
Based on the heat supply method of above-mentioned central heating system, it comprises following control step so:
A) each user side is equipped with control valve, to offer the active user sets up room temperature according to own hot needs right, the user side adjustment of Shi Xianing according to this can provide good user's consciousness basis to household metering, and then is embodied in the energy-saving and cost-reducing overall social planning;
B) temperature of the medium return pipe of detection branches pipe network if temperature is lower than preset range, is then heightened the flow of this branch's pipe network, if temperature is higher than preset range, then turns down the flow of this branch's pipe network, by the related adjustment of carrying out temperature of temperature with flow;
C) detection if medium pressure is higher than the setting pressure scope, is then turned down pressure of supply water greater than medium pressure and last coolant-temperature gage on the main conduit of the layer of branch's pipe network, otherwise, then heighten pressure of supply water; If last coolant-temperature gage is higher than given range, then turn down the water supply flow of the corresponding upper layer node of institute's detected temperatures subnet, otherwise, then heighten the water supply flow of corresponding upper layer node.
Preferably, the preset range of temperature is [30 ℃, 50 ℃], satisfies the needs of people's comfort level, and this temperature range depends on environment temperature, is basically to adjust according to the relation that is inversely proportional to environment temperature.
Further, on node, all be provided with node, set up for pipe medium temperature according to environment temperature to give operator's indicating value for the pipe temperature-detecting device greater than the layer of branch's pipe network.
Claims (7)
1. central heating system, comprise with total heating plant being the heating network of the tree structure of root node, user side (1) forms the leaf node of this heating network, the father node of user side and with the corresponding leaf node of this father node by the interconnected formation of heat supplying pipeline branch's pipe network (2), it is characterized in that: the pipeline of user side is provided with control valve (3), and branch's return pipe (5) of branch's pipe network is provided with first temperature collecting device (7), and on the main conduit of branch's pipe network, be provided with first flow control device (8), adjust the aperture of described first flow control device with the temperature data that is collected according to described first temperature collecting device;
Layer greater than branch's pipe network all is being provided with when the anterior layer medium pressure acquisition device and second temperature collecting device on the anterior layer main conduit, and be arranged on the anterior layer main conduit corresponding to the pressure control device that deserves anterior layer medium pressure acquisition device, to control medium force value on the current main conduit in predetermined scope, the pipeline that the while upper strata is interconnected to this straton net is provided with second volume control device (12), controls the aperture of described second volume control device with the temperature value of being gathered according to described second temperature collecting device.
2. central heating system according to claim 1 is characterized in that: the described anterior layer medium pressure acquisition device of working as is arranged at supplying on the pipe when the anterior layer main conduit.
3. central heating system according to claim 2 is characterized in that: described second temperature collecting device be arranged at respective subnet main conduit on the pipe.
4. according to the arbitrary described central heating system of claim 1 to 3, it is characterized in that: greater than branch's pipe network the layer node all mainly be to constitute except that root node by heat exchanger, correspondingly, the subcycle pipe network of each node correspondence all is provided with water-supply apparatus, and this water-supply apparatus is as described pressure control device.
5. central heating system according to claim 4 is characterized in that: described control valve is a manual ball valve.
6. central heating system according to claim 4 is characterized in that: the number of plies of described heating network is three layers.
7. central heating system according to claim 4 is characterized in that: described water-supply apparatus is a plurality of variable frequency water supply pumps in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205788935U CN201844453U (en) | 2010-10-27 | 2010-10-27 | Concentrated heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205788935U CN201844453U (en) | 2010-10-27 | 2010-10-27 | Concentrated heating system |
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| Publication Number | Publication Date |
|---|---|
| CN201844453U true CN201844453U (en) | 2011-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205788935U Expired - Lifetime CN201844453U (en) | 2010-10-27 | 2010-10-27 | Concentrated heating system |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963374A (en) * | 2010-10-27 | 2011-02-02 | 孔祥懿 | Central heating system and heating method |
| CN102635894A (en) * | 2012-05-04 | 2012-08-15 | 北京市旭广厦暖通节能设备有限责任公司 | Balance controlling method of heating system and diagnosis measuring device |
| CN102954532A (en) * | 2011-08-23 | 2013-03-06 | 上海漕泾热电有限责任公司 | Multi-zone heat supply system and method for controlling same |
| CN103842732A (en) * | 2011-06-30 | 2014-06-04 | 贝利莫控股公司 | Method and devices for equalizing a group of consumers in a fluid transport system |
| CN102954532B (en) * | 2011-08-23 | 2016-12-14 | 上海漕泾热电有限责任公司 | Multizone heating system and control method thereof |
| CN104214810B (en) * | 2014-09-27 | 2017-04-12 | 卓旦春 | Hydraulic balance temperature adjusting method |
| CN107559926A (en) * | 2017-09-14 | 2018-01-09 | 天津大学 | A kind of family's heat supply network active heat-exchange system in central heating system |
-
2010
- 2010-10-27 CN CN2010205788935U patent/CN201844453U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963374A (en) * | 2010-10-27 | 2011-02-02 | 孔祥懿 | Central heating system and heating method |
| CN101963374B (en) * | 2010-10-27 | 2012-05-23 | 孔祥懿 | Central heating system and heating method |
| CN103842732A (en) * | 2011-06-30 | 2014-06-04 | 贝利莫控股公司 | Method and devices for equalizing a group of consumers in a fluid transport system |
| CN103842732B (en) * | 2011-06-30 | 2016-10-19 | 贝利莫控股公司 | The method and apparatus of one group of load in equalization fluid induction system |
| US9766633B2 (en) | 2011-06-30 | 2017-09-19 | Belimo Holding Ag | Method and devices for equalizing a group of consumers in a fluid transport system |
| CN102954532A (en) * | 2011-08-23 | 2013-03-06 | 上海漕泾热电有限责任公司 | Multi-zone heat supply system and method for controlling same |
| CN102954532B (en) * | 2011-08-23 | 2016-12-14 | 上海漕泾热电有限责任公司 | Multizone heating system and control method thereof |
| CN102635894A (en) * | 2012-05-04 | 2012-08-15 | 北京市旭广厦暖通节能设备有限责任公司 | Balance controlling method of heating system and diagnosis measuring device |
| CN102635894B (en) * | 2012-05-04 | 2014-11-19 | 北京市旭广厦暖通节能设备有限责任公司 | Balance controlling method of heating system and diagnosis measuring device |
| CN104214810B (en) * | 2014-09-27 | 2017-04-12 | 卓旦春 | Hydraulic balance temperature adjusting method |
| CN107559926A (en) * | 2017-09-14 | 2018-01-09 | 天津大学 | A kind of family's heat supply network active heat-exchange system in central heating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110525 Effective date of abandoning: 20120523 |