CN203224271U - Boiler steam drum water level water injection device - Google Patents
Boiler steam drum water level water injection device Download PDFInfo
- Publication number
- CN203224271U CN203224271U CN 201320232620 CN201320232620U CN203224271U CN 203224271 U CN203224271 U CN 203224271U CN 201320232620 CN201320232620 CN 201320232620 CN 201320232620 U CN201320232620 U CN 201320232620U CN 203224271 U CN203224271 U CN 203224271U
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- pipe
- water
- differential pressure
- pressure transmitter
- boiler
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Abstract
The utility model provides a boiler steam drum water level water injection device which comprises a water storing tank. One end of the water storing tank is connected with a water pump through a first rubber pipe, and the other end of the water storing tank is connected with a second rubber pipe. The second rubber pipe is connected to the bottom end of a U-shaped pipe through a three-way valve. A water injection valve is arranged on the second rubber pipe. Pipe openings of the two ends of the U-shaped pipe are respectively provided with a reference glass pipe and a balance pipe. The upper end of the balance pipe is connected with a balance container. The balance pipe is connected with a differential pressure transmitter. The portion, on the lower side of the differential pressure transmitter, of the balance pipe is further provided with a positive pressure side sewage draining door. The differential pressure transmitter is connected with the bottom of a boiler through a liquid phase pipe. The portion, on the lower side of the differential pressure transmitter, of the liquid phase pipe is provided with a negative pressure side sewage draining door. The balance container is connected with the top of the boiler through an air phase pipe. According to the boiler steam drum water level water injection device, water injection can be successful at a time, a large amount of desalted water is saved, working time of a feed pump is shortened, and the water injection device is efficient and saves energy. Moreover, a tele-transmission water gauge is put into operation in advance, and convenience is brought to operating personnel to start a unit.
Description
Technical field
The utility model belongs to the liquid level emasuring device technical field, is specifically related to a kind of boiler drum level meter water filling device.
Background technology
Steam water-level is one of main monitoring parameter of power plant, and the correct measurement steam water-level is the assurance of safe operation of the boiler.The particularly introducing of Computer Control Technology all is greatly improved on technical feature, security, reliability.Subcritical boiler all adopts differential pressure water level gauge as the main means of drum level measurement now, and uses as The Water Level Control of Steam and guard signal.Traditional metering system has: two-colour fluviograph, electric contact point fluviograph, differential pressure water level gauge (single chamber or two chambers equalizing reservoir are compensation) on the spot.The measuring error of water level meter and electric contact point fluviograph is subjected to the influence of boiler pressure, heat radiation situation, installation form, actual water level on the spot, is difficult to accurately calculate.Therefore high parameter, big capacity unit are many in the main instrument of various compensate for poor setting-out position as drum level measurement, but this water level instrumentation amount error is subjected to all multifactor influences too.
Differential pressure water level gauge is to measure water level by the variation that the variation of height of water level is converted to differential pressure, and therefore, its measurement instrument is exactly differential pressure gauge.The key that differential pressure water level gauge is accurately measured steam water-level is the accurate conversion between water level and the differential pressure, and this conversion forms comparing water column by equalizing reservoir and realizes.At present, the most frequently used is to form differential pressure by the comparing water column under the single-compartment balance container to measure steam water-level both at home and abroad, and comparing water column is the most key in influencing the accurate factor of differential pressure water level instrumentation amount.
Because traditional water flooding regime need be given the drum water filling with feed pump, the inner liquid level of drum exceeds certain altitude, and this process needs a large amount of demineralized waters, also need a large amount of time simultaneously, and steam water-level can't be estimated accurately during this.Traditional buphthalmos water level meter, electric contact point fluviograph has fixing blind area, has crossed visual range and just can't observe, and very possible steam water-level is too high, and demineralized water may be added in the superheater pipeline, and this is danger close.
At present, after making the drum filling up water water level meter is carried out water filling in the Power Plant start-up course, the water level meter comes into operation, and this kind method had not only been lost time but also waste water resource.And when water temperature, water level is improper or other reason causes water filling failure, may carry out repeatedly water filling, can cause bigger start-up time and the waste of demineralized water.
The utility model content
The technical problems to be solved in the utility model provides a kind of boiler drum level meter water filling device, and it is low to solve the existing equipment work efficiency, problems such as waste water resource.
For solving the problems of the technologies described above, embodiment of the present utility model provides a kind of boiler drum level meter water filling device, comprise water tank, described water tank one end connects a water pump by first proofed sleeve, the described water tank other end connects second proofed sleeve, described second proofed sleeve is connected in the bottom of U-shaped pipe by T-valve, described second proofed sleeve is provided with Water filling valve, be respectively equipped with reference glass tube and balance pipe on the two ends mouth of pipe of described U-shaped pipe, described balance pipe upper end connects equalizing reservoir, connect a differential pressure transmitter on the described balance pipe, be positioned at described differential pressure transmitter downside on the described balance pipe and also be provided with malleation side sewage door, described differential pressure transmitter links to each other with boiler bottom by liquid-phase tube, be positioned at described differential pressure transmitter downside on the described liquid-phase tube and also be provided with the suction side sewage door, described equalizing reservoir links to each other with the boiler top by the gas phase pipe.
Wherein, described first proofed sleeve is provided with flowrate control valve.
The beneficial effect of technique scheme of the present utility model is as follows:
In the such scheme, guarantee once success of water filling, saved the quality time for unit starts fast; Save a large amount of demineralized waters, reduced the feed pump working time, energy-efficient; The telemetering level meter that puts into operation in advance is for providing convenience in the work of operations staff's unit starting.
Description of drawings
Fig. 1 is the structural representation of the boiler drum level meter water filling device of the utility model embodiment;
［ main element symbol description ］
1, first proofed sleeve;
2, flowrate control valve;
3, water pump;
4, Water filling valve;
5, second proofed sleeve;
6, water tank;
7, T-valve;
8, malleation side sewage door;
9, suction side sewage door;
10, liquid-phase tube;
11, gas phase pipe;
12, equalizing reservoir;
13, U-shaped pipe;
14, reference glass tube;
15, balance pipe;
16, differential pressure transmitter.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and advantage clearer, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
The utility model is short serviceable life at existing coal guide plate, and the problem of unstable properties provides a kind of boiler drum level meter water filling device.
As shown in Figure 1, a kind of boiler drum level meter water filling device that the utility model embodiment provides, comprise water tank 6, described water tank 6 one ends connect a water pump 3 by first proofed sleeve 1, also be provided with flowrate control valve 2 on described first proofed sleeve 1, described water tank 6 other ends connect second proofed sleeve 5, and described second proofed sleeve 5 is connected in the bottom of U-shaped pipe 13 by T-valve 7, and described second proofed sleeve 5 is provided with Water filling valve 4.
Be respectively equipped with reference glass tube 14 and balance pipe 15 on the two ends mouth of pipe of described U-shaped pipe 13, described balance pipe 15 upper ends connect equalizing reservoir 12, connect a differential pressure transmitter 16 on the described balance pipe 15, be positioned at described differential pressure transmitter 16 downsides on the described balance pipe 15 and also be provided with malleation side sewage door 8, described differential pressure transmitter 16 links to each other with boiler 13 bottoms by liquid-phase tube 10, be positioned at described differential pressure transmitter 16 downsides on the described liquid-phase tube 10 and also be provided with suction side sewage door 9, described equalizing reservoir 12 links to each other with described boiler 13 tops by gas phase pipe 11.
The course of work of the utility model embodiment is as follows:
Before unit starting, by water pump 3 demineralized water is transported in the water tank 6, regulate flow by flowrate control valve 2, liquid level is slowly risen, when attaining to a high place, liquid level stops water pump 3 work.Connect second proofed sleeve 5, check reference glass tube 14 and equalizing reservoir 12 the highest liquid levels, open the malleation side sewage door 8 of differential pressure transmitter 16, guarantee that pipeline is unimpeded.Open the Water filling valve 4 of water tank 6 outlets, demineralized water is given U-shaped pipe 13 water fillings by T-valve 7, U-shaped pipe 13 both sides liquid levels slowly rise, when liquid level reaches equalizing reservoir 12 during high liquid level, liquid level is not rising, at this moment, should continue water filling, unnecessary demineralized water will flow into drum inside by equalizing reservoir 12, give pipeline through the row flushing simultaneously, guarantee that the malleation side inside of differential pressure transmitter 16 is demineralized water.Close differential pressure water level gauge malleation side sewage door 8, same method is to the water filling of water level meter suction side.
Water filling is finished, and the water level meter i.e. normal the input, makes constant being guaranteed of steam water-level malleation side height of water level.Simultaneously, the medium that the utility model uses is demineralized water, and temperature can be adjusted to the temperature that water filling needs, effectively prevent adhering to of differential pressure water level meter malleation side pipe wall steam bubble, guarantee once success of water filling, when reducing labor strength, guaranteed the accuracy of drum level measurement to greatest extent.The utility model moves portable unit, and floor area is little, conveniently moving, and it is wide to work, the service efficiency height.
The above is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from principle described in the utility model; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. boiler drum level meter water filling device, it is characterized in that, comprise water tank, described water tank one end connects a water pump by first proofed sleeve, the described water tank other end connects second proofed sleeve, described second proofed sleeve is connected in the bottom of U-shaped pipe by T-valve, described second proofed sleeve is provided with Water filling valve, be respectively equipped with reference glass tube and balance pipe on the two ends mouth of pipe of described U-shaped pipe, described balance pipe upper end connects equalizing reservoir, connect a differential pressure transmitter on the described balance pipe, be positioned at described differential pressure transmitter downside on the described balance pipe and also be provided with malleation side sewage door, described differential pressure transmitter links to each other with boiler bottom by liquid-phase tube, is positioned at described differential pressure transmitter downside on the described liquid-phase tube and also is provided with the suction side sewage door, and described equalizing reservoir links to each other with the boiler top by the gas phase pipe.
2. boiler drum level meter water filling device according to claim 1 is characterized in that, described first proofed sleeve is provided with flowrate control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320232620 CN203224271U (en) | 2013-04-29 | 2013-04-29 | Boiler steam drum water level water injection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320232620 CN203224271U (en) | 2013-04-29 | 2013-04-29 | Boiler steam drum water level water injection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203224271U true CN203224271U (en) | 2013-10-02 |
Family
ID=49251274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320232620 Expired - Fee Related CN203224271U (en) | 2013-04-29 | 2013-04-29 | Boiler steam drum water level water injection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203224271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043498A (en) * | 2015-04-30 | 2015-11-11 | 中石化宁波工程有限公司 | Differential pressure liquid level measuring device |
| CN112539803A (en) * | 2020-12-29 | 2021-03-23 | 国家电投集团郑州燃气发电有限公司 | Quick steam pocket water level gauge moisturizing device |
-
2013
- 2013-04-29 CN CN 201320232620 patent/CN203224271U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043498A (en) * | 2015-04-30 | 2015-11-11 | 中石化宁波工程有限公司 | Differential pressure liquid level measuring device |
| CN112539803A (en) * | 2020-12-29 | 2021-03-23 | 国家电投集团郑州燃气发电有限公司 | Quick steam pocket water level gauge moisturizing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131002 Termination date: 20150429 |
|
| EXPY | Termination of patent right or utility model |