CN204419553U - A kind of feed water pump female footballer - Google Patents
A kind of feed water pump female footballer Download PDFInfo
- Publication number
- CN204419553U CN204419553U CN201420751506.1U CN201420751506U CN204419553U CN 204419553 U CN204419553 U CN 204419553U CN 201420751506 U CN201420751506 U CN 201420751506U CN 204419553 U CN204419553 U CN 204419553U
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- warming
- water pump
- feed water
- pipe
- female
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Abstract
The utility model provides a kind of feed water pump female footballer, comprise the supply channel that more than two-way is parallel with one another, supply channel is serially connected with pre feedwater pump and feed water pump successively, feed water pump female footballer also comprises warming-up mother pipe, warming-up inlet pipeline is connected with between the feed-water end of the female pipe of warming-up and the outlet pipe of each pre feedwater pump, warming-up rising pipe is connected with between the waterexit end of the female pipe of warming-up and the warming-up water inlet of each feed water pump, each warming-up inlet pipeline and each warming-up rising pipe are equipped with the check valve stoping current direction to flow from warming-up rising pipe to the direction of warming-up inlet pipeline.Feed water pump female footballer of the present utility model reduces power consumption, and save warming-up pipeline, user cost is lower, meanwhile, is detected and carries out security monitoring to whole system, improve system operation reliability by temperature transducer and pressure transducer.
Description
Technical field
The utility model relates to a kind of feed water pump female footballer.
Background technique
Along with the increase of unit capacity, before boiler feed water pump startup, warming-up has become one of most important start-up routine.No matter high pressure water pump is cold conditions or hot lower startup, all must carry out warming-up before activation.If warming-up is insufficient, will be uneven due to thermal expansion, pump upper-lower casing can be made to occur the temperature difference and produce hogback distortion.In this case once start feed water pump, just may cause the heavy wear of sound part, the dynamic balance accuracy of rotor is damaged, result must cause the vibration of pump, and shorten the working life of shaft seal, adopting the temperature difference (General Requirements, the upper and lower maximum temperature difference of the pump housing should be less than 20 DEG C) of the intensification of the rational control pump of mode of warming-up and upper and lower pump case, is the essential condition ensureing feed water pump smooth starting.
Authorization Notice No. is that the Chinese invention patent of CN103759246A discloses a kind of boiler feed pump and falls heating system, the heating system that should fall comprises the first pipeline and the second pipeline, first pipeline identical with the second pipeline and successively serial connection be provided with pre feedwater pump and feed water pump, the first bypass is connected with between the pre feedwater pump of the first pipeline and feed water pump, the rear end of the first bypass is connected to the water outlet of the second feed water pump, the second bypass is connected with between the pre feedwater pump of the second pipeline and feed water pump, the rear end of the second bypass is connected to the water outlet of the first feed water pump, first, second bypass is respectively equipped with check valve, three kinds of embodiments are provided based on this patent of invention of such technological scheme, in the first embodiment, when first pipeline runs, the low-pressure water that can be flowed out with the first pre feedwater pump by the first bypass is to the pre feedwater pump of the second bypass of stand-by state and feed water pump warming-up, when second pipeline runs, the low-pressure water that can be flowed out with the second pre feedwater pump by the second bypass is to the pre feedwater pump of the first pipeline of stand-by state and feed water pump warming-up, but two bypasses of this heating system adopt a pipeline alone respectively, use pipeline longer, costly, in the second embodiment, the middle part of two bypasses shares a pipeline, although save a part of pipeline, but the high pressure water that the feed water pump outlet port of this female footballer first pipeline when warming-up is flowed out can by the first bypass and through the second bypass to the second feed water pump warming-up, such one side adopts high pressure water warming-up to waste electric energy, another is convenient, high pressure water is to the larger pressure of the throttling element in bypass, easily cause bypass generation booster, have an accident, there is identical problem in the third embodiment and the second embodiment, and a shared throttling element makes the pressure reduction of throttling element both sides larger, more easily there is pipe explosion accident, increase potential safety hazard.
Model utility content
The purpose of this utility model is to provide one to reduce power consumption, saves the female footballer of pipeline simultaneously.
In order to solve the problems of the technologies described above, feed water pump female footballer of the present utility model adopts following technological scheme:
A kind of feed water pump female footballer, comprise the supply channel that more than two-way is parallel with one another, described supply channel is serially connected with pre feedwater pump and feed water pump successively, described feed water pump female footballer also comprises warming-up mother pipe, warming-up inlet pipeline is connected with between the feed-water end of the female pipe of warming-up and the outlet pipe of each pre feedwater pump, warming-up rising pipe is connected with between the waterexit end of the female pipe of warming-up and the warming-up water inlet of each feed water pump, each warming-up inlet pipeline and each warming-up rising pipe are equipped with the check valve stoping current direction to flow from warming-up rising pipe to the direction of warming-up inlet pipeline.
Temperature transducer is respectively equipped with near check valve on each warming-up inlet pipeline and each warming-up rising pipe.
The female pipe of described warming-up is provided with the first pressure transducer for showing hydraulic pressure, and the water outlet of each pre feedwater pump is provided with for carrying out with the first pressure transducer the second pressure transducer of contrasting.
Each warming-up inlet pipeline and each warming-up rising pipe are respectively equipped with separating valve.
Each warming-up inlet pipeline and/or each warming-up rising pipe are provided with throttle valve.
Feed water pump female footballer of the present utility model comprises two or more supply channel parallel with one another and warming-up mother pipe, warming-up inlet pipeline is connected with between the feed-water end of the female pipe of warming-up and the outlet pipe of each pre feedwater pump, warming-up rising pipe is connected with between the waterexit end of the female pipe of warming-up and the warming-up water inlet of each feed water pump, each warming-up inlet pipeline and each warming-up rising pipe are equipped with the check valve stoping current direction to flow from warming-up rising pipe to the direction of warming-up inlet pipeline, the warming-up inlet pipeline of low-pressure water by being connected with the outlet pipe of this pre feedwater pump of the pre feedwater pump outflow of running state so in use, warming-up mother pipe, and the warming-up inlet pipeline to be connected with the warming-up water intake of the feed water pump of stand-by state carries out warming-up to the feed water pump of stand-by state, check valve on the warming-up inlet pipeline that the outlet pipe of the check valve on the warming-up inlet pipeline that the warming-up water intake of the feed water pump of running state connects and the pre feedwater pump of stand-by state connects can be closed automatically, prevent warming-up aqueous reflux, not only save warming-up pipeline, also adopt the low-pressure water that pre feedwater pump flows out to carry out warming-up simultaneously, reduce power consumption.
Further, temperature transducer is equipped with near check valve on each warming-up inlet pipeline and each warming-up rising pipe, the water being positioned at check valve two lateral line due to check valve when playing cutout effect can not flow, after static water a period of time, water temperature is consistent with external temperature, therefore can judge whether this check valve effectively can play non-return effect by the temperature transducer water temperature detected respectively near check valve, detect simply more convenient.
Further, warming-up mother pipe and pre feedwater pump water outlet are respectively equipped with first, second pressure transducer, compared by the one the second pressure transducers, can judge that whether the hydraulic pressure in the female pipe of warming-up is identical with the hydraulic pressure of the low-pressure water that pre feedwater pump flows out, if different, then illustrate that the check valve on the warming-up rising pipe that the warming-up water intake of the feed water pump of running state connects lost efficacy, the high pressure water refluence that the feed water pump of running state is discharged enters warming-up mother pipe, this detection mode is convenient, is improve the Security of system by the detection of pressure transducer.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of feed water pump female footballer embodiment of the present utility model.
Embodiment
The embodiment of a kind of feed water pump female footballer of the present utility model: as shown in Figure 1, comprise oxygen-eliminating device 1, high-temperature water is stored in oxygen-eliminating device, oxygen-eliminating device 1 is communicated with first, article the second two, supply channel, feed water pump female footballer also comprises the female pipe 100 of warming-up, article two, supply channel is identical and two supply channels are also identical with the annexation of the female pipe of warming-up, for the first supply channel, its structure is described below: the first supply channel is connected with pre feedwater pump 3 and feed water pump 9 in turn by pipeline, inlet valve 2 is provided with between oxygen-eliminating device 1 and pre feedwater pump 3, separating valve 11 and check valve 10 is provided with after feed water pump 9, feed water pump 9 is provided with the warming-up water intake for entering for warming-up water, the feed-water end of the female pipe 100 of warming-up is connected on the water supply preposition water pump outlet pipe between pre feedwater pump 3 and feed water pump 9 by warming-up inlet pipeline, the waterexit end of the female pipe 100 of warming-up is communicated with warming-up water intake by warming-up rising pipe, warming-up water is guided by the female pipe 100 of warming-up and flows into warming-up water intake, warming-up inlet pipeline is provided with check valve 4 and separating valve 5, temperature transducer a is provided with between check valve 4 and separating valve 5, warming-up rising pipe is provided with check valve 17 and separating valve 18, the front end pipeline of check valve 17 is provided with temperature transducer d, warming-up rising pipe is also provided with separating valve 16, in other embodiments, this separating valve can be replaced by throttle valve, by the flow regulating throttle valve can control the hot water that the female pipe of warming-up flows through, thus control the temperature of warming-up, or can separating valve and throttle valve be set simultaneously, or by separating valve and/throttle valve is located on warming-up inlet pipeline good.The outlet pipe of the female pipe 100 of warming-up and pre feedwater pump is respectively equipped with the first pressure transducer e and the second pressure transducer f.
Feed water pump female footballer of the present utility model in use, in two supply channels in parallel, a supply channel is in running state, another supply channel is in stand-by state, for convenience of explanation, the first supply channel is in running state, the second supply channel is in stand-by state in definition now.
First pre feedwater pump 3 is extracted out from oxygen-eliminating device 1 and water pressure after boosting is less, for low-pressure water, this part low-pressure water to be delivered in feed water pump 9 and to be transported in boiler after feed water pump 9 boosts again by the first pre feedwater pump 3, wherein, the low-pressure water that first pre feedwater pump 9 flows out passes through the first warming-up inlet pipeline through check valve 14, separating valve 15 is also guided through separating valve 6 by the female pipe 100 of warming-up, check valve 7 and separating valve 8 flow backwards and enter warming-up in the second feed water pump 19, and flow back in oxygen-eliminating device 1 from the front end pipeline of the second feed water pump 19, in this process, second feed water pump 19 is heated by low-pressure water, the temperature of pump raises, thus complete warming-up process, for the low-pressure water of flowing out to the warming-up hydromining of the second feed water pump 19 warming-up with the first pre feedwater pump 3, do not need to consume too many electric energy, reduce energy consumption, high pressure water in order to prevent the first feed water pump 9 from flowing out in this process flows out and affects boiler water supply from the female pipe 100 of warming-up, need to guarantee that the high pressure water that the check valve 17 be connected on the warming-up water intake of the first feed water pump 9 can effectively stop the first feed water pump 9 to flow out is flowed out by the female pipe 100 of warming-up, therefore need whether to damage check valve 17 to detect, when detecting, if check valve 17 stands intact, then be connected in the warming-up pipeline on the warming-up water intake of the first feed water pump 9 and there is no water flow, current do not circulate and the heat of the water near check valve 17 can be caused to distribute gradually and temperature reduction, and it is equal with external temperature, if the temperature at temperature transducer d place equals atmospheric temperature, then illustrate that check valve 17 is intact, high pressure water in first feed water pump 9 does not have check valve 17 to flow out, if the temperature of temperature transducer d is higher than atmospheric temperature, then illustrate that check valve 17 damages and there is leakage, the temperature measured by temperature transducer e and the difference of atmospheric temperature can judge the damaged condition of check valve 17, if the temperature that temperature transducer e measures is far above atmospheric temperature, then check valve 17 well damage is described, now need to close separating valve 18, to the conscientious maintenance of check valve 17 or replacing, ensure that whole supply channel normally runs, in like manner, by temperature transducer respectively to check valve 14, the temperature at check valve 4 and check valve 7 place is measured, can determine whether check valve can play cutout effect, whole system is avoided to break down, certainly, in other are implemented, can on oxygen-eliminating device mounting temperature sensor h, by temperature transducer a, b, c, temperature measured by d and the temperature measured by temperature transducer h compare also passable, if Temperature numerical is more or less the same, illustrate that the check valve damage corresponding to temperature transducer is leaked, if measured temperature numerical value difference is comparatively large, illustrate that check valve is intact, pressure transducer e on the female pipe 100 of warming-up can measure the hydraulic pressure size in warming-up pipeline, pressure transducer f on the outlet pipe of pre feedwater pump 13 can measure the pressure size of the water after pre feedwater pump boosting, compared by pressure transducer e and pressure transducer f and can judge whether check valve 17 lost efficacy, if check valve 17 lost efficacy, the high pressure water that then feed water pump 9 is discharged can flow backward in the female pipe 100 of warming-up by warming-up rising pipe, force value measured by pressure transducer e is obviously greater than the force value that pressure transducer f measures, now need to repair or replace check valve 17, thus the normal operation of further assure feed water pipeline.
In the present embodiment, measure check valve by temperature transducer and whether damage or reveal, in other embodiments, the pipeline that can be connected at check valve arranges flow detector to detect.
In the present embodiment, detecting check valve service failure by arranging pressure transducer, in other embodiments, can not pressure transducer being set, set temperature sensor or not set temperature sensor only arrange pressure transducer, and the present embodiment is only to provide a kind of preferred version.
In the present embodiment, separating valve can be electronic or pneumatic self-acting valve, check valve service failure is detected by the pressure transducer arranged, separating valve is closed in time by self-acting valve control logic, reduce high pressure water to the impact of warming-up pipeline, check valve service failure is detected by the temperature transducer arranged, separating valve is closed in time by self-acting valve control logic, the labor intensity of operations staff can be reduced, in other embodiments, can not pressure transducer be set, set temperature sensor or not set temperature sensor only arrange pressure transducer, the present embodiment is only to provide a kind of preferred version.
In the present embodiment, each warming-up inlet pipeline and each warming-up rising pipe are respectively equipped with separating valve, conveniently can be cut off the water supply when pipeline breaks down maintenance by the isolation break function of separating valve, also be convenient to take quarantine measures in time in operation, reduce the power consumption that high pressure water leaks, in other embodiments, can not separating valve be set, now supply channel break down need maintenance time, need to close whole supply channel.
In the present embodiment, oxygen-eliminating device is parallel with two supply channels, and be only in running state with the first supply channel, second supply channel is in stand-by state and is illustrated, in other embodiments, oxygen-eliminating device can connect three or more supply channel, now, need to be in running state by least one supply channel, and at least one supply channel is in stand-by state, the supply channel being in running state carries out warming-up by the feed water pump of warming-up pipeline to the supply channel being in stand-by state, certainly, also all running state can be in, now feed water pump does not need warming-up, do not affect the normal use of native system.
Feed water pump female footballer of the present utility model adopts low-pressure water to carry out warming-up, save electric energy, multiple supply channel is connected on the female pipe of same warming-up, saving warming-up pipeline, meanwhile, the pipeline of whole female footballer being also provided with for detecting the temperature transducer and pressure transducer whether check valve damage, the running state of moment detection whole system, can Timeliness coverage problem, ensure that the functional reliability of whole service pipeline, greatly reduce contingency occurrence probability and maintenance expenses.
Claims (5)
1. a feed water pump female footballer, comprise the supply channel that more than two-way is parallel with one another, described supply channel is serially connected with pre feedwater pump and feed water pump successively, it is characterized in that, described feed water pump female footballer also comprises warming-up mother pipe, warming-up inlet pipeline is connected with between the feed-water end of the female pipe of warming-up and the outlet pipe of each pre feedwater pump, warming-up rising pipe is connected with between the waterexit end of the female pipe of warming-up and the warming-up water inlet of each feed water pump, each warming-up inlet pipeline and each warming-up rising pipe are equipped with the check valve stoping current direction to flow from warming-up rising pipe to the direction of warming-up inlet pipeline.
2. feed water pump female footballer according to claim 1, is characterized in that, is respectively equipped with temperature transducer near the check valve on each warming-up inlet pipeline and each warming-up rising pipe.
3. feed water pump female footballer according to claim 1 and 2, it is characterized in that, the female pipe of described warming-up is provided with the first pressure transducer for showing hydraulic pressure, and the water outlet of each pre feedwater pump is provided with for carrying out with the first pressure transducer the second pressure transducer of contrasting.
4. feed water pump female footballer according to claim 1 and 2, is characterized in that, each warming-up inlet pipeline and each warming-up rising pipe are respectively equipped with separating valve.
5. feed water pump female footballer according to claim 1 and 2, is characterized in that, each warming-up inlet pipeline and/or each warming-up rising pipe are provided with throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751506.1U CN204419553U (en) | 2014-12-04 | 2014-12-04 | A kind of feed water pump female footballer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420751506.1U CN204419553U (en) | 2014-12-04 | 2014-12-04 | A kind of feed water pump female footballer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419553U true CN204419553U (en) | 2015-06-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420751506.1U Expired - Fee Related CN204419553U (en) | 2014-12-04 | 2014-12-04 | A kind of feed water pump female footballer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419553U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905989A (en) * | 2017-09-11 | 2018-04-13 | 广东核电合营有限公司 | A kind of method, female footballer and the main feed pump system of the reversion of solution APA stand-by pumps |
| CN110793087A (en) * | 2019-11-12 | 2020-02-14 | 北京金茂绿建科技有限公司 | Electrode boiler and comprehensive system for participating in thermoelectric decoupling of coal-fired thermal power plant by means of fused salt heat storage |
-
2014
- 2014-12-04 CN CN201420751506.1U patent/CN204419553U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905989A (en) * | 2017-09-11 | 2018-04-13 | 广东核电合营有限公司 | A kind of method, female footballer and the main feed pump system of the reversion of solution APA stand-by pumps |
| CN107905989B (en) * | 2017-09-11 | 2019-05-28 | 广东核电合营有限公司 | A kind of method, female footballer and main feed pump system solving the reversion of APA stand-by pump |
| CN110793087A (en) * | 2019-11-12 | 2020-02-14 | 北京金茂绿建科技有限公司 | Electrode boiler and comprehensive system for participating in thermoelectric decoupling of coal-fired thermal power plant by means of fused salt heat storage |
| CN110793087B (en) * | 2019-11-12 | 2021-05-14 | 北京金茂绿建科技有限公司 | Electrode boiler and comprehensive system for participating in thermoelectric decoupling of coal-fired thermal power plant by means of fused salt heat storage |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20191204 |