CN105457809A - Water-cooled type steel pipe interior plastic coating spray gun - Google Patents
Water-cooled type steel pipe interior plastic coating spray gun Download PDFInfo
- Publication number
- CN105457809A CN105457809A CN201610069914.2A CN201610069914A CN105457809A CN 105457809 A CN105457809 A CN 105457809A CN 201610069914 A CN201610069914 A CN 201610069914A CN 105457809 A CN105457809 A CN 105457809A
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- Prior art keywords
- water
- spray gun
- pipe
- powder
- steel pipe
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B13/00—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00
- B05B13/06—Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups B05B1/00 - B05B11/00 specially designed for treating the inside of hollow bodies
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- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention relates to a plastic coating spray gun, in particular to a water-cooled type steel pipe interior plastic coating spray gun. The spray gun is composed of a spray gun rod, a spray head, a powder pump, a powder barrel, a circulation water tank, an outer wrapping cooling pipe, a water inlet pipe and a water outlet pipe. The spray gun is characterized in that the outer surface of the spray gun rod is sleeved with the outer wrapping cooling pipe, the left end of the outer wrapping cooling pipe is provided with the water inlet pipe and the water outlet pipe, the other end of the water inlet pipe is connected with a water pump in the circulation water tank, the other end of the water outlet pipe is communicated with the circulation water tank, and circulation cooling water is pumped into the outer wrapping cooling pipe through the water pump for circulation. The spray gun rod is cooled through the circulation cooling water inside the outer wrapping cooling pipe, the temperature of the spray gun rod is decreased, and it is ensured that powder in the spray gun rod will not be fused or stuck to the inner wall of the spray gun rod in the spraying process. The problems that powder in a spray gun rod is fused and stuck to the inner wall of the spray gun rod after being heated to reach a certain temperature, the inner diameter of the spray gun rod is reduced, and the powder spraying amount is reduced are solved.
Description
Technical field
The present invention relates to a kind of plastic-coated spray gun, particularly relate to a kind of water-cooled steel pipe internal plastic coating spray gun.
Background technology
Steel-plastics composite pipe has antirust, corrosion-resistant, and the performance of many excellences such as withstand voltage change, is widely used in safty of drinking water, the field such as conveying of power cable sheath, extinguishing pipe and combustion gas, chemical products.Steel-plastics composite pipe has plastic lining composite steel pipe, hot-dip plastic composite steel tube, plastic coated composite steel pipe etc.Wherein plastic coated composite steel pipe due to production technology simple, it is most widely used; The technological process of production of plastic coated composite steel pipe is: steel pipe is coated with solidification in pre-treatment (deburring, end face leveling, sandblasting are derusted) → steel pipe preheating (180 ~ 230 DEG C) → spray epoxy (or polyethylene) → curing oven; Solidification in curing oven is not needed during spraying polyethylene.But the defect that in the production technology of existing plastic coated composite steel pipe, existence one is maximum, namely spray gun works in the steel pipe up to more than 200 degree because of long-time in the process of spraying steel pipe inner wall, gun shot be heated reach certain temperature after, powder in gun shot will melt and is bonded on the inwall of gun shot, the internal diameter of gun shot is caused to diminish, the amount of dusting is reduced, and time serious, even gun shot is blocked, is therefore difficult to the coating quality controlling product.
Summary of the invention
The object of the invention is to, for above-mentioned the deficiencies in the prior art, there is provided a kind of outside gun shot, install one deck outsourcing cooling tube additional, by the recirculated cooling water cooling spray barral of a gun in outsourcing cooling tube, the temperature of gun shot is reduced, be bonded on the inwall of gun shot after solving powder melted by heating, cause the internal diameter of gun shot to diminish, reduce the water-cooled steel pipe internal plastic coating spray gun that the amount of dusting even blocks gun shot problem.
The present invention realizes above-mentioned purpose by the following technical solutions:
This water-cooled steel pipe internal plastic coating spray gun is made up of gun shot, shower nozzle, powder feeding pipe, powder pump, powder bucket, cyclic water tank, outsourcing cooling tube, water inlet pipe and outlet pipe, the right-hand member of gun shot is provided with shower nozzle, the left end of gun shot connects powder pump by powder feeding pipe, powder pump is arranged in powder bucket, it is characterized in that: described gun shot outer surface is set with outsourcing cooling tube, the left end of outsourcing cooling tube is provided with water inlet pipe and outlet pipe, the other end of water inlet pipe connects the water pump in cyclic water tank, the other end of outlet pipe and cyclic water tank UNICOM; After recirculated cooling water in cyclic water tank pumps into outsourcing cooling tube by water pump by water inlet pipe, then circulate by outlet pipe inflow cyclic water tank.
The water temperature of the pipe inner cooling water in described outsourcing cooling tube is no more than 45 DEG C.
The length of described gun shot is greater than the length of steel pipe, guarantees that water inlet pipe does not contact with steel pipe with outlet pipe.
Recirculated cooling water in described cyclic water tank can add cooling fluid according to the needs of pipe inner cooling water water temperature, and the weight ratio of cooling fluid and recirculated cooling water is 1:20.
The present invention's beneficial effect is compared with prior art:
This water-cooled steel pipe internal plastic coating spray gun adopts outside gun shot, installs one deck outsourcing cooling tube additional, by the recirculated cooling water in outsourcing cooling tube, gun shot is cooled, the temperature of gun shot is reduced, guarantees that the powder of gun shot in spraying process in gun shot is not bonded on the inwall of gun shot up to the temperature melting of more than 200 degree by spraying steel pipe.Thoroughly solve gun shot in prior art in the process of spraying steel pipe inner wall, powder in gun shot be heated reach certain temperature after be melted and be bonded on the inwall of gun shot, cause the internal diameter of gun shot to diminish, the amount of dusting is reduced, the problem that time serious, even gun shot is blocked.
Accompanying drawing explanation
Fig. 1 is the structural representation of the composite steel tube internal plastic coating spray gun of prior art;
Fig. 2 is a kind of structural representation of water-cooled composite steel tube internal plastic coating spray gun;
In figure: 1, gun shot, 2, shower nozzle, 3, powder feeding pipe, 4, powder pump, 5, powder bucket, 6, cyclic water tank, 7, outsourcing cooling tube, 8, recirculated cooling water, 9, water inlet pipe, 10, outlet pipe, 11, water pump, 12, pipe inner cooling water, 13, steel pipe, 14, internal plastic coating layer.
Detailed description of the invention
This water-cooled steel pipe internal plastic coating spray gun is made up of gun shot 1, shower nozzle 2, powder feeding pipe 3, powder pump 4, powder bucket 5, cyclic water tank 6, outsourcing cooling tube 7, water inlet pipe 9 and outlet pipe 10, the right-hand member of gun shot 1 is provided with shower nozzle 2, the left end of gun shot 1 connects powder pump 4 by powder feeding pipe 3, powder pump 4 is arranged in powder bucket 5, the outer surface of described gun shot 1 is set with outsourcing cooling tube 7, the left end of outsourcing cooling tube 7 is provided with water inlet pipe 9 and outlet pipe 10, the other end of water inlet pipe 9 connects the water pump 11 in cyclic water tank 6, the other end of outlet pipe 10 and cyclic water tank 6 UNICOM; After recirculated cooling water 8 in cyclic water tank 6 pumps into outsourcing cooling tube 7 by water pump 11 by water inlet pipe 9, flowed in cyclic water tank 6 by outlet pipe 10 again and circulate, recirculated cooling water 8 in cyclic water tank 6 is according to the water temperature needs of the pipe inner cooling water 12 in outsourcing cooling tube 7, if the water temperature of pipe inner cooling water 12 is too high, when can not ensure that the temperature of gun shot 1 is in claimed range, environment temperature residing for cyclic water tank 6 is too high, then can add cooling fluid in recirculated cooling water 8, the weight ratio of cooling fluid and recirculated cooling water 8 is 1:20.The water temperature of the recirculated cooling water 8 in outsourcing cooling tube 7 is no more than 45 DEG C.The length of described gun shot 1 is greater than the length of steel pipe 13, guarantees that water inlet pipe 9 does not contact with steel pipe 13 with outlet pipe 10.
This water-cooled steel pipe internal plastic coating spray gun course of work is: stretch in the steel pipe after preheating 13 by gun shot 1 and shower nozzle 2, carry out plastic-coated by the powder pump 4 in powder bucket 5 by powder feeding pipe 3 to its powder feeding, move from right to left when gun shot 1 and shower nozzle 2 plastic-coated; While plastic-coated, water pump 11 in cyclic water tank 6 passes through water inlet pipe 9 to outsourcing cooling tube 7 inner water-supply, and entered in cyclic water tank 6 by outlet pipe .10, the pipe inner cooling water 12 in outsourcing cooling tube 7 is formed and circulates, guarantee that the water temperature of pipe inner cooling water 12 is no more than 45 DEG C.Can ensure that powder in gun shot 1 can not be bonded on the inwall of gun shot because being melted after being heated like this.
The above is preferred embodiment of the present invention, above-mentioned illustrating does not do any pro forma restriction to flesh and blood of the present invention, any simple modification that person of an ordinary skill in the technical field has done above detailed description of the invention according to technical spirit of the present invention after having read this description or distortion, and the technology contents of above-mentioned announcement may be utilized to be changed or be modified to the Equivalent embodiments of equivalent variations, all still belong in the scope of technical solution of the present invention, and do not deviate from the spirit and scope of the invention.
Claims (4)
1. a water-cooled steel pipe internal plastic coating spray gun, it is by gun shot (1), shower nozzle (2), powder feeding pipe (3), powder pump (4), powder bucket (5), cyclic water tank (6), outsourcing cooling tube (7), water inlet pipe (9) and outlet pipe (10) are formed, the right-hand member of gun shot (1) is provided with shower nozzle (2), the left end of gun shot (1) connects powder pump (4) by powder feeding pipe (3), powder pump (4) is arranged in powder bucket (5), it is characterized in that: the outer surface of described gun shot (1) is set with outsourcing cooling tube (7), the left end of outsourcing cooling tube (7) is provided with water inlet pipe (9) and outlet pipe (10), the other end of water inlet pipe (9) connects the water pump (11) in cyclic water tank (6), the other end of outlet pipe (10) and cyclic water tank (6) UNICOM, after recirculated cooling water (8) in cyclic water tank (6) pumps into outsourcing cooling tube (7) by water pump (11) by water inlet pipe (9), then circulate by outlet pipe (10) inflow cyclic water tank (6).
2. a kind of water-cooled steel pipe internal plastic coating spray gun according to claim 1, is characterized in that: the water temperature of the pipe inner cooling water (12) in described outsourcing cooling tube (7) is no more than 45 DEG C.
3. a kind of water-cooled steel pipe internal plastic coating spray gun according to claim 1, is characterized in that: the length of described gun shot (1) is greater than the length of steel pipe (13), guarantees that water inlet pipe (9) does not contact with steel pipe (13) with outlet pipe (10).
4. a kind of water-cooled steel pipe internal plastic coating spray gun according to claim 1, it is characterized in that: the recirculated cooling water (8) in described cyclic water tank (6) can add cooling fluid according to the needs of pipe inner cooling water (12) water temperature, the weight ratio of cooling fluid and recirculated cooling water (8) is 1:20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069914.2A CN105457809A (en) | 2016-02-02 | 2016-02-02 | Water-cooled type steel pipe interior plastic coating spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610069914.2A CN105457809A (en) | 2016-02-02 | 2016-02-02 | Water-cooled type steel pipe interior plastic coating spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105457809A true CN105457809A (en) | 2016-04-06 |
Family
ID=55596222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610069914.2A Pending CN105457809A (en) | 2016-02-02 | 2016-02-02 | Water-cooled type steel pipe interior plastic coating spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105457809A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1142794A (en) * | 1994-01-27 | 1997-02-12 | 铬合金气体涡轮公司 | Laser/powder metal coat spray head |
| EP0578333B1 (en) * | 1992-06-30 | 2001-01-03 | Nordson Corporation | Improvements in and relating to powder coating |
| CN101712018A (en) * | 2009-11-19 | 2010-05-26 | 河北华油一机图博涂层有限公司 | Powder-coating spraying gun |
| CN201940318U (en) * | 2010-12-10 | 2011-08-24 | 广东成通新型管业有限公司 | Internal coating machine for steel pipes |
| CN202427588U (en) * | 2011-12-19 | 2012-09-12 | 青岛大仓管道防腐保温器材有限公司 | Device for coating epoxy powder in and out of steel tube |
| CN205518371U (en) * | 2016-02-02 | 2016-08-31 | 陈慧 | Plastic -coated spray gun in water -cooled steel pipe |
-
2016
- 2016-02-02 CN CN201610069914.2A patent/CN105457809A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0578333B1 (en) * | 1992-06-30 | 2001-01-03 | Nordson Corporation | Improvements in and relating to powder coating |
| CN1142794A (en) * | 1994-01-27 | 1997-02-12 | 铬合金气体涡轮公司 | Laser/powder metal coat spray head |
| CN101712018A (en) * | 2009-11-19 | 2010-05-26 | 河北华油一机图博涂层有限公司 | Powder-coating spraying gun |
| CN201940318U (en) * | 2010-12-10 | 2011-08-24 | 广东成通新型管业有限公司 | Internal coating machine for steel pipes |
| CN202427588U (en) * | 2011-12-19 | 2012-09-12 | 青岛大仓管道防腐保温器材有限公司 | Device for coating epoxy powder in and out of steel tube |
| CN205518371U (en) * | 2016-02-02 | 2016-08-31 | 陈慧 | Plastic -coated spray gun in water -cooled steel pipe |
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Application publication date: 20160406 |