CN207610198U - Demineralized water does not shut down transport system - Google Patents
Demineralized water does not shut down transport system Download PDFInfo
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- CN207610198U CN207610198U CN201721796775.XU CN201721796775U CN207610198U CN 207610198 U CN207610198 U CN 207610198U CN 201721796775 U CN201721796775 U CN 201721796775U CN 207610198 U CN207610198 U CN 207610198U
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Abstract
The utility model discloses a kind of demineralized waters not to shut down transport system; including sweet-water tank; sweet-water tank is connected with water-supply-pipe; water-supply-pipe is connected with oxygen-eliminating device; water-delivery pump and motor-driven valve are equipped on the water-supply-pipe successively, the return duct being connected with water-supply-pipe and regulation pipe are respectively equipped between water-delivery pump and motor-driven valve, return duct is connected with sweet-water tank; interstage valve is additionally provided on return duct, interstage valve is connected with regulation pipe；The return duct is equipped with four-way connection, the interstage valve includes the left end valve body being arranged in four-way connection left end, spring is equipped in left end valve body, interstage valve further includes the right end valve body being arranged in four-way connection right end, plunger corresponding with spring is equipped in right end valve body, plunger is equipped with recirculation hole, and the right end of right end valve body is connected with regulation pipe.The utility model can effectively reduce the spoilage of water pump.
Description
Technical field
The utility model is related to a kind of steam power plant's condensed water water-carriage system, especially a kind of demineralized water does not shut down delivery system
System.
Background technology
Condensed water in steam power plant needs after the processes such as desalination and deoxygenation, is sent into boiler and recycles.It is existing
When condensed water is delivered to from sweet-water tank in oxygen-eliminating device, need to carry out pressurized delivered using water pump, due to the processing energy of oxygen-eliminating device
Power is effective, and water pump needs frequent opening and closing, and the use of oxygen-eliminating device is met with this, water pump is may result in this way and often damages
It is bad, not only increase maintenance cost, can also influence normally to operate.Therefore, there is water pump spoilage is higher for existing technology
Problem.
Utility model content
The purpose of the utility model is to provide a kind of demineralized waters not to shut down transport system.The utility model can be effective
Reduce the spoilage of water pump.
The technical solution of the utility model：Demineralized water does not shut down transport system, including sweet-water tank, and sweet-water tank is connected with
Water-supply-pipe, water-supply-pipe are connected with oxygen-eliminating device, water-delivery pump and motor-driven valve, water-delivery pump and motor-driven valve are equipped with successively on the water-supply-pipe
Between be respectively equipped with the return duct being connected with water-supply-pipe and regulation pipe, return duct is connected with sweet-water tank, is also set on return duct
There are interstage valve, interstage valve to be connected with regulation pipe；The return duct is equipped with four-way connection, and the interstage valve includes being arranged four
The left end valve body of pass joint left end, left end valve body is interior to be equipped with spring, and interstage valve further includes the right end being arranged in four-way connection right end
Valve body, right end valve body is interior to be equipped with plunger corresponding with spring, and plunger is equipped with recirculation hole, the right end and regulation pipe of right end valve body
It is connected.
Demineralized water above-mentioned is not shut down in transport system, and the left end valve body includes and the mutually fixed fixed valve of four-way connection
Body, fixed valve body is through being threaded with movable valve；The spring is located in movable valve and fixed valve body.
Demineralized water above-mentioned is not shut down in transport system, and liquid level gauge is equipped in the oxygen-eliminating device, and liquid level gauge is connected with control
Device processed, controller are connected with motor-driven valve.
Demineralized water above-mentioned is not shut down in transport system, and the upper and lower ends of the four-way connection are connected with return duct respectively.
Compared with prior art, the utility model is connected by being arranged one between water-delivery pump and motor-driven valve with water-supply-pipe
Logical return duct, and opening and closing is controlled by interstage valve so that in oxygen-eliminating device full water, condensed water can be through return duct demineralized water
In case, water-delivery pump need not be closed, so as to effectively reduce the switching frequency of water-delivery pump, and then extends the use of water-delivery pump
Service life.Interstage valve drives the movement of plunger using hydraulic pressure by the cooperation of spring, plunger, motor-driven valve and regulation pipe, realizes cold
The automatic back flow of condensate, it is simple in structure, it is easy to operate.In conclusion the utility model can effectively reduce the spoilage of water pump.
In addition, by the movable valve and fixed valve body that are arranged to be threadedly coupled by left end valve body, for adjustment spring
Elastic force can play the purpose and parts of calibration interstage valve sealing performance.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the partial enlarged view of Fig. 1；
Fig. 3 is the control figure of the utility model.
Label in attached drawing be：1- sweet-water tanks, 2- water-supply-pipes, 3- oxygen-eliminating devices, 4- water-delivery pumps, 5- motor-driven valves, 6- reflux
Pipe, 7- interstage valves, 8- regulation pipes, 9- four-way connections, 10- liquid level gauges, 11- controllers, 701- left end valve bodies, 702- springs,
703- right end valve bodies, 704- plungers, 705- recirculation holes, 707- fixed valve bodies, 706- movable valves.
Specific implementation mode
The utility model is further described with reference to the accompanying drawings and examples, but is not intended as to the utility model
The foundation of limitation.
Embodiment.Demineralized water does not shut down transport system, constitutes as shown in Figure 1 to Figure 3, including sweet-water tank 1, sweet-water tank
1 is connected with water-supply-pipe 2, and water-supply-pipe 2 is connected with oxygen-eliminating device 3, water-delivery pump 4 and motor-driven valve 5 are equipped with successively on the water-supply-pipe 2,
The return duct 6 being connected with water-supply-pipe 2 and regulation pipe 8, return duct 6 and demineralized water are respectively equipped between water-delivery pump 4 and motor-driven valve 5
Case 1 is connected, and interstage valve 7 is additionally provided on return duct 6, interstage valve 7 is connected with regulation pipe 8；The return duct 6 is equipped with four-way connection
9, the interstage valve 7 includes the left end valve body 701 being arranged in 9 left end of four-way connection, and spring 702 is equipped in left end valve body 701,
Interstage valve 7 further includes the right end valve body 703 being arranged in 9 right end of four-way connection, is equipped in right end valve body 703 opposite with spring 702
The plunger 704 answered, plunger 704 are equipped with recirculation hole 705, and the right end of right end valve body 703 is connected with regulation pipe 8.
The left end valve body 701 includes connecting through screw thread with 9 mutually fixed fixed valve body 707 of four-way connection, fixed valve body 707
It is connected to movable valve 706；The spring 702 is located in movable valve 706 and fixed valve body 707.
Liquid level gauge 10 is equipped in the oxygen-eliminating device 3, liquid level gauge 10 is connected with controller 11, controller 11 and motor-driven valve 5
It is connected.
The upper and lower ends of the four-way connection 9 are connected with return duct 6 respectively.
The motor-driven valve is close to oxygen-eliminating device side, and the water-delivery pump is close to sweet-water tank side.
The course of work of the utility model：Water in sweet-water tank is delivered in oxygen-eliminating device by water delivery pump work, electric at this time
Dynamic valve is opened, and after the water in oxygen-eliminating device reaches setting value, controller controls motor-driven valve and closes, water just respectively enter return duct and
In regulation pipe, hydraulic pressure will act on plunger, to drive plunger to move, until recirculation hole is connected with the through-hole in four-way connection
Logical, water will flow into sweet-water tank out of return duct, play the purpose of adjusting.When the water level in oxygen-eliminating device is relatively low, motor-driven valve
It is again turned on, the water in regulation pipe will lose persistently larger pressure so that plunger resets under spring pressure effect, recirculation hole
It misplaces with the through-hole on four-way connection, plays the role of closed, will stop flowing back in return duct so that the water in sweet-water tank is just
It can be again introduced into oxygen-eliminating device.
Claims (4)
1. demineralized water does not shut down transport system, it is characterised in that：Including sweet-water tank (1), sweet-water tank (1) is connected with water-supply-pipe
(2), water-supply-pipe (2) is connected with oxygen-eliminating device (3), is equipped with water-delivery pump (4) and motor-driven valve (5) on the water-supply-pipe (2) successively, defeated
The return duct (6) being connected with water-supply-pipe (2) and regulation pipe (8), return duct are respectively equipped between water pump (4) and motor-driven valve (5)
(6) it is connected with sweet-water tank (1), interstage valve (7) is additionally provided on return duct (6), interstage valve (7) is connected with regulation pipe (8)；It is described
Return duct (6) is equipped with four-way connection (9), and the interstage valve (7) includes left end valve body of the setting in four-way connection (9) left end
(701), spring (702) is equipped in left end valve body (701), interstage valve (7) further includes right end of the setting in four-way connection (9) right end
Valve body (703), right end valve body (703) is interior to be equipped with plunger (704) corresponding with spring (702), and plunger (704) is equipped with circulation
The right end in hole (705), right end valve body (703) is connected with regulation pipe (8).
2. demineralized water according to claim 1 does not shut down transport system, it is characterised in that：Left end valve body (701) packet
Include with four-way connection (9) mutually fixed fixed valve body (707), fixed valve body (707) is through being threaded with movable valve (706)；
The spring (702) is located in movable valve (706) and fixed valve body (707).
3. demineralized water according to claim 1 does not shut down transport system, it is characterised in that：It is set in the oxygen-eliminating device (3)
There are liquid level gauge (10), liquid level gauge (10) to be connected with controller (11), controller (11) is connected with motor-driven valve (5).
4. demineralized water according to claim 1 does not shut down transport system, it is characterised in that：The four-way connection (9) it is upper
Lower both ends are connected with return duct (6) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796775.XU CN207610198U (en) | 2017-12-20 | 2017-12-20 | Demineralized water does not shut down transport system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721796775.XU CN207610198U (en) | 2017-12-20 | 2017-12-20 | Demineralized water does not shut down transport system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207610198U true CN207610198U (en) | 2018-07-13 |
Family
ID=62799423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721796775.XU Active CN207610198U (en) | 2017-12-20 | 2017-12-20 | Demineralized water does not shut down transport system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207610198U (en) |
-
2017
- 2017-12-20 CN CN201721796775.XU patent/CN207610198U/en active Active
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