CN102536724A

CN102536724A - Energy recovery reciprocating pump

Info

Publication number: CN102536724A
Application number: CN201010608300XA
Authority: CN
Inventors: 高明
Original assignee: SHENZHEN OCEAN XINGUANG ENVIRONMENT TECHNOLOGY DEVELOPMENT CO LTD
Current assignee: Beijing Woshen tech technology Co. Ltd.
Priority date: 2010-12-28
Filing date: 2010-12-28
Publication date: 2012-07-04

Abstract

The invention relates to a reciprocating pump integrating functions of liquid pressurization and recovery of residual energy from liquid after working. At present, the conventional reciprocating pump in the world is not self-provided with an energy recovery device, every axial reciprocating pump adopts continuous push-pull type operating principle, and once the main shaft rotate a cycle, the plunger of the reciprocating pump only operates once. The conventional reciprocating pump has the disadvantages of high friction force, high energy consumption, large noise, severe wear of working parts, and large pressure fluctuation of effluent liquid. The technical problem is solved by adopting the following schemes: an operating plunger and a control plunger are arranged in the reciprocating pump; the operating plunger completes liquid suction and output of pressurized liquid and can recover most of the energy of part of the liquid with energy (for short, boosting liquid); a primary pressure disc and a secondary pressure disc are respectively arranged at the two ends of each of the operating plunger and the control plunger; the primary pressure discs are used for pushing the operating plunger to work, and pushing the control plunger to open a boosting liquid inlet hole and close a boosting liquid discharge hole; and the secondary pressure discs are used for pushing the operating plunger to suck liquid, and pushing the control plunger to close the boosting liquid inlet hole and open the boosting liquid discharge hole.

Description

The energy recovery reciprocating pump

Affiliated technical field

The present invention relates to a kind of, set pair liquid pressurization and can reclaim the reciprocating pump of function and one simultaneously again to the back dump energy of doing manual work.

Background technique

Present conventional reciprocating pump in the world, none self has energy recycle device; Present conventional reciprocating pump in the world, none is not continuous force pushing type for its working principle; Present conventional radial reciprocating pump in the world, none is not that driving shaft whenever rotates a circle, its plunger work is once; For example, be used for the reciprocating pump of desalination of sea water, in the dense draining after it is exerted oneself; Also containing the input that has about 90% can; Large-scale desalting plant still can install various energy recycle devices additional in addition, and middle-size and small-size desalting plant, especially small-sized desalting plant then directly discharges condensed water; Cause energy loss very big, this is the uneconomical requirement that does not also meet low-carbon emission; Tradition is the force pushing type reciprocating pump continuously, and frictional force is big, the work parts wear is heavy, noise is big, energy consumption is high; Present conventional radial reciprocating pump, its driving shaft whenever rotates a circle, plunger work once, output hydraulic coupling fluctuation is big, also need install stable-pressure device in addition additional under a lot of occasions, also must keep higher revolutions in order to increase the production fluid amount, noise strengthens; Because the existence of above-mentioned shortcoming, even covered that the reciprocating pump volume is little, the efficient advantages of higher, restricted the development of reciprocating pump greatly, more hindered reciprocating pump and developed to big flow.

Summary of the invention

In order to overcome the shortcoming of conventional reciprocating pump, the present invention has selected, and released liquor directly returns the boosting chamber that is positioned at work plunger mid-rear portion, and the auxiliary method that promotes plunger to reclaim the part of its energy, reaches purpose of energy saving; The present invention has also selected a kind of pair of platen to promote the reciprocal method of plunger.

The present invention solves the scheme that its technical problem adopts: reciprocating pump is built-in with work plunger and control plunger.The work plunger is accomplished the suction and the output of pressurization back of liquid; And can reclaim the major part of the energy of that part of liquid that has energy (being called for short boosting liquid); Under the distribution of control plunger, introduce or the boosting chamber of the work of discharge plunger, and back and forth do work with the main pressure plate plunger that pushes the work forward; The present invention solves another program that its technical problem adopts: the two ends at work plunger and control plunger are respectively equipped with major and minor two platens; The main pressure plate plunger that is used to push the work forward is exerted oneself, is promoted to control plunger and opens boosting liquid and introduce the hole, close boosting liquid discharge orifice, and the secondary platen plunger that is used to push the work forward sucks liquid, promotes the control plunger and close boosting liquid and introduce the hole, open boosting liquid discharge orifice.

The invention has the beneficial effects as follows: one, keeping under the high prerequisite of reciprocating pump mechanical efficiency, accomplishing recuperable and have an energy recovery of that part of liquid of energy it.If be made as 1 to the push the work forward energy consumption of plunger of noenergy recovering device reciprocating pump; The energy consumption that has the energy recycle device reciprocating pump so then is: 1-(pressure of the sectional area of plunger in boosting chamber * entering boosting chamber liquid); And the two poor * 100%, i.e. its energy recovery rate.Two, major and minor platen rotates a circle, and the plunger that can push the work forward is repeatedly reciprocal; Its reciprocal time is minimum to be twice, can reach work number of plungers-1 at most, and pressure surge is much littler than the conventional reciprocating pump, especially is much smaller than conventional axial reciprocating pump, when being used for desalination of sea water even can omit stable-pressure device.Three, compare with the conventional reciprocating pump of same size under the equal conditions, the noise coefficient reduces greatly, manufacturing process is simple more, manufacture cost reduces greatly; Though set pair liquid of the present invention pressurization and energy recovery be in one, its volume is much smaller than the volume that the reciprocating pump of same model adds other same model energy recycle device.

The practical implementation method

Power is through the transmission shaft input; Transmission shaft drives major and minor platen and rotates simultaneously, keeps a proper angle to rotate continuously between the major and minor platen, and the roller on its platen then is close to the plunger cylindrical shell and is rolled along with the rotation of platen; Owing to be non-resilient the connection between platen and the plunger cylindrical shell; So when roller rolls chance work plunger and control during plunger, be about to it and push the plunger cylindrical shell successively, thereby finish the work plunger opening, closing successively to suction, pressurization and the control plunger of liquid.

Description of drawings

Accompanying drawing 1 is the erection drawing of energy recovery reciprocating pump, the present invention is further specified with implementing below in conjunction with accompanying drawing 1:

1, seal ring A, 2, control plunger 3, roller A, 4, roller pin A, 5, secondary platen, 6, locking nut 7, transmission shaft; 8, backbone sealing ring, 9, bearing, 10, front cover, 11, plunger ring, 12, the work plunger, 13, spring A; 14, plug, 15, the fluid one-way valve, 16, the working solution leadout hole, 17, fastening screw, 18, the fluid lumen pore, 19, the plunger tube head; 20, feed liquor lumen pore, 21, spring B, 22, the feed liquor one-way valve, 23, reclaim the fluid power hole, 24, reclaim the liquid discharge orifice, 25, frame; 26, reclaim fluid power introduction hole A, 27, rear end cover, 28, roller pin B, 29, roller B, 30, the two-restriction nut, 31, main pressure plate; 32, reclaim fluid power introduction hole B, 33 reclaim the liquid leadout holes, and 34, reclaim the fluid power introduction chamber, 35, reclaim the liquid export cavity, 36, seal ring B, 37, the plunger cylindrical shell.

Stoste at first is full of admission chamber through feed liquor lumen pore (20); Drive power source transmission shaft (7) rotation is fixed on the also rotation thereupon of the master (31) on the transmission shaft, secondary (5) platen, when the head end of work plunger (12) is passed through in the roller on the secondary platen (3) roll extrusion; The plunger that promptly pushes the work forward gradually moves to the main pressure plate direction; The formed negative pressure of moving makes the feed liquor one-way valve opens, thereby accomplishes the suction to stoste, when the tail end of work plunger is passed through in roller B (29) roll extrusion on the main pressure plate; The plunger that promptly pushes the work forward gradually moves to secondary platen direction; Completion is to the supercharging of stoste, and the liquid after the supercharging overcomes the resistance of fluid one-way valve (15) spring A (13), gets into working part through working solution leadout hole (16), fluid lumen pore (18); The work plunger moves with this successively.Roller roll extrusion on the secondary platen promptly promotes the control plunger to the motion of main pressure plate direction during through the head end of control plunger (2) gradually, closes and open simultaneously boosting liquid discharge orifice with what realize that boosting liquid introduces the hole; Accomplish the discharging of boosting liquid, when the process of the roller roll extrusion on the main pressure plate is controlled the tail end of plunger, promptly promote the control plunger gradually and move to secondary platen direction; And the boosting liquid of closing and open simultaneously of realizing boosting liquid discharge orifice is introduced the hole; Let boosting liquid be able to get into the boosting chamber, therefore the work plunger has obtained the energy that boosting liquid brings, and is translated into the thrust to the work plunger; The size of its thrust and its pressure are taken advantage of direct ratio; Then the roller on the main pressure plate is the tail end of roll extrusion through the work plunger, and the two plunger that pushes the work forward is jointly exerted oneself, until reaching setting pressure; The control plunger moves with this successively.No matter be not difficult to find out, under the promotion of major and minor platen, be control plunger or the work plunger all is intermittent types or says pulse operation that its energy consumption is low than the conventional reciprocating pump.

Claims

1. energy recovery reciprocating pump.In the housing of sealing, be equipped with plunger cylindrical shell, plunger tube head, work plunger, control plunger, main pressure plate, secondary platen, one-way valve, transmission shaft, bearing, seal ring etc.; It is characterized in that: be equipped with work plunger, control plunger on the plunger cylindrical shell; Work plunger with control plunger quantity can be single also can be a plurality of; The work plunger can be that circle also can be other proterties with the proterties of control plunger, and the proterties of the two can be the same or different; The mid-rear portion of work plunger and plunger cylindrical shell is provided with the boosting chamber; Its objective is and introduce boosting liquid, that part of pressure that carries boosting liquid converts to, the thrust that the plunger that pushes the work forward is exerted oneself; To reach the purpose of energy recovery, the efficient of its energy recovery is directly proportional with the pressure of boosting liquid.

2. energy recovery reciprocating pump according to claim 1; It is characterized in that: at the two ends of plunger cylindrical shell; Be equipped with main pressure plate and secondary platen respectively; The main pressure plate plunger that is used to push the work forward is exerted oneself, is promoted to control plunger and opens boosting liquid and introduce the hole, close boosting liquid discharge orifice, and the secondary platen plunger that is used to push the work forward sucks liquid, promotes the control plunger and close boosting liquid and introduce the hole, open boosting liquid discharge orifice; The proterties of major and minor platen can be the same or different, and its proterties can be that disc also can be other proterties such as plate, sheet, certainly its proterties structure can be the symmetry also can be asymmetric.

3. energy recovery reciprocating pump according to claim 1 is characterized in that: the quantity of the roller on the major and minor platen (roller B), can be single also can be a plurality of, the quantity of the roller on main pressure plate and the secondary platen (roller B) can be the same or different; Each roller (roller B) can be that a monomer also can be the compound body that a plurality of monomers are formed; Roller on the major and minor platen (roller B) proterties can be cylindrical also can be other proterties.