CN212210758U - Automatic water replenishing device and generator stator cooling water system - Google Patents
Automatic water replenishing device and generator stator cooling water system Download PDFInfo
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- CN212210758U CN212210758U CN202021207211.XU CN202021207211U CN212210758U CN 212210758 U CN212210758 U CN 212210758U CN 202021207211 U CN202021207211 U CN 202021207211U CN 212210758 U CN212210758 U CN 212210758U
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Abstract
The utility model discloses an automatic water supply device and generator stator cooling water system, the automatic water supply device that discloses includes the demineralized water supply system of power plant, first pipeline, automatically controlled valve, water level measuring device, the second pipeline, coolant tank and controlling means, demineralized water supply system of power plant communicates through the entry of first pipeline with automatically controlled valve, second pipeline and coolant tank intercommunication are passed through in the export of automatically controlled valve, water level measuring device sets up in coolant tank, water level measuring device is used for detecting coolant tank's current water level, controlling means links to each other with automatically controlled valve and water level measuring device, controlling means is according to the break-make of current water level control automatically controlled valve. Above-mentioned scheme can solve the difficult problem of controlling the moisturizing volume and wasting time and energy when generator stator cooling water system adopts the manual work to carry out the moisturizing.
Description
Technical Field
The utility model relates to a stator cooling technology field of generator especially relates to an automatic water supply device and generator stator cooling water system.
Background
The stator cooling water system is one of important components of a steam turbine generator unit, and the operation reliability of the stator cooling water system is directly related to whether the steam turbine generator can safely and stably operate.
In the correlation technique, common stator cooling water system carries out the moisturizing through the mode that adopts artifical moisturizing for the system, and the difficult control moisturizing volume of moisturizing is carried out to the manual work, wastes time and energy moreover to lead to the unsatisfactory problem of stator cooling water system work efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an automatic water supply device to solve stator cooling water system when artifical moisturizing, there is the difficult controlled moisturizing volume and the problem that wastes time and energy.
In order to solve the above problems, the utility model adopts the following technical proposal:
the utility model discloses an automatic water supply device is applicable to generator stator cooling water system, including power plant's demineralized water supply system, first pipeline, automatically controlled valve, water level measuring device, the second pipeline, coolant tank and controlling means, power plant's demineralized water supply system passes through the entry intercommunication of first pipeline with automatically controlled valve, the export of automatically controlled valve passes through second pipeline and coolant tank intercommunication, water level measuring device sets up in coolant tank, water level measuring device is used for detecting coolant tank's current water level, controlling means links to each other with automatically controlled valve and water level measuring device, controlling means is according to the break-make of current water level control automatically controlled valve.
A generator stator cooling water system comprises the automatic water replenishing device.
The utility model discloses a technical scheme can reach following beneficial effect:
the utility model discloses an among the automatic water supply device, water level measuring device can set up in coolant tank, and water level measuring device transmits the current water level that detects to controlling means, and controlling means is through judging the analysis back to current water level to make the break-make of controlling means control automatically controlled valve. Specifically, if the current water level is smaller than the preset water level, the control device controls the electric control valve to be opened so as to continue to replenish water to the cooling water tank, and when the current water level is larger than or equal to the preset water level, the control device controls the electric control valve to be closed so as to stop replenishing water to the cooling water tank. The embodiment of the utility model discloses automatic water supply device has realized the automatic replenishment of coolant tank's water level, and then can confirm the moisturizing volume betterly, simultaneously, can also avoid artifical moisturizing, and then avoid the problem that wastes time and energy that artifical moisturizing exists.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the background art of the present invention, the drawings used in the description of the embodiments or the background art will be briefly described below, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic structural view of an automatic water replenishing device disclosed in an embodiment of the present invention;
fig. 2 is a schematic structural view of another automatic water replenishing device disclosed in the embodiment of the present invention;
fig. 3 is a schematic structural view of another automatic water replenishing device disclosed in the embodiment of the present invention.
Description of reference numerals:
100-a power plant demineralized water supply system;
200-first line, 210-pressure relief valve;
300-an electrically controlled valve;
400-water level measuring device;
500-second line, 510-check valve, 520-ion exchanger, 530-filter;
600-a cooling water tank;
700-control device, 710-first liquid level switch, 720-second liquid level switch, 730-third liquid level switch, 740-remote central control equipment;
800-bypass pipeline, 810-switch valve;
900-a drain pipe and 910-a drain valve.
Detailed Description
To make the purpose, technical solution and advantages of the present invention clearer, the following will combine the embodiments of the present invention and the corresponding drawings to clearly and completely describe the technical solution of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The technical solutions disclosed in the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, an embodiment of the present invention discloses an automatic water supply device, which is suitable for a generator stator cooling water system, and the disclosed automatic water supply device includes a power plant demineralized water supply system 100, a first pipeline 200, an electric control valve 300, a water level measuring device 400, a second pipeline 500, a cooling water tank 600 and a control device 700.
The power plant demineralized water supply system 100 can be communicated with an inlet of the electric control valve 300 through the first pipeline 200, an outlet of the electric control valve 300 can be communicated with the cooling water tank 600 through the second pipeline 500, the water level measuring device 400 can be arranged on the cooling water tank 600, the water level measuring device 400 is used for detecting the current water level of the cooling water tank 600, the control device 700 is connected with the electric control valve 300 and the water level measuring device 400, and the control device 700 controls the on-off of the electric control valve 300 according to the current water level.
As described above, the water level measuring device 400 may be disposed at the cooling water tank 600, in a specific using process, the water level measuring device 400 may detect a current water level of the cooling water tank 600, the water level measuring device 400 transmits the detected current water level to the control device 700, and the control device 700 determines and analyzes the current water level, so that the control device 700 controls the on/off of the electric control valve 300, specifically, if the current water level is less than a preset water level, the control device 700 controls the electric control valve 300 to open, so as to continue to replenish water to the cooling water tank 600, and when the current water level is greater than or equal to the preset water level, the control device 700 controls the electric control valve 300 to close, so as to stop replenishing water to the cooling water tank 600. The embodiment of the utility model discloses automatic water supply device has realized the automatic replenishment of cooling water tank 600's water level, and then can confirm the moisturizing volume betterly, simultaneously, can also avoid artifical moisturizing, and then avoid the problem that wastes time and energy that artifical moisturizing exists.
The embodiment of the utility model provides an in, first pipeline 200 can set up relief pressure valve 210, it is concrete, power plant's demineralized water supply system 100 provides the moisturizing and must pass through first pipeline 200 for coolant tank 600, power plant's demineralized water supply system 100 provides the difficult holding stability of water pressure of moisturizing, and water pressure is great, first pipeline 200 can reduce water pressure and can control at a stable value through relief pressure valve 210, thereby be favorable to improving the input stability of moisturizing, and first pipeline 200 sets up relief pressure valve 210 and can prevent that water pressure from too high leading to the pipeline to damage, thereby can avoid first pipeline 200 to be maintained the change frequently.
The embodiment of the utility model provides an in, second pipeline 500 can be provided with check valve 510, and is concrete, and automatically controlled valve 300 and check valve 510 set gradually along the rivers direction in first pipeline 200, and check valve 510 can make the moisturizing can only follow second pipeline 500 and flow to the rivers direction of coolant tank 600 to make the moisturizing avoid flowing back to second pipeline 500 in the coolant tank 600, and then make automatically controlled valve 300 obtain effectual protection, finally improve the stability of second pipeline 500 for coolant tank 600 input moisturizing.
The embodiment of the utility model provides a can include bypass pipeline 800, it is concrete, bypass pipeline 800's one end and automatically controlled valve 300's entry intercommunication, bypass pipeline 800's the other end and automatically controlled valve 300's export intercommunication, when operating personnel maintained automatically controlled valve 300, bypass pipeline 800 can be for coolant tank 600 input moisturizing to be favorable to improving the work efficiency of automatic water supply device.
As described above, the bypass line 800 may supply the cooling water tank 600 with the supplementary water, and the bypass line 800 may be provided with the switching valve 810 to control the on/off of the bypass line 800. Specifically, in a feasible scheme, the switch valve 810 may be an electromagnetic valve, the electromagnetic valve may be electrically connected to the control device 700, the control device 700 controls the electromagnetic valve and the electronic control valve 300 to realize the work exchange of the second pipeline 500 and the bypass pipeline 800, so that an operator can conveniently maintain the second pipeline, and the work efficiency of the automatic water replenishing device is improved. The embodiment of the present invention does not limit the specific type of the on-off valve 810 herein.
The embodiment of the utility model provides an in, the embodiment of the utility model provides a can include ion exchanger 520, and is concrete, and ion exchanger 520 can set up at second pipeline 500, and in concrete use, second pipeline 500 adjusts the conductivity of moisturizing through ion exchanger 520 to be favorable to improving the quality of water that gets into moisturizing in cooling water tank 600, and improve the stability of moisturizing conductivity, make the reliability improvement of generator stator cooling water system safe operation.
The embodiment of the utility model provides an in, the embodiment of the utility model provides a can include filter 530, it is concrete, filter 530 set up in second pipeline 500, filter 530 can filter the cooling water that enters into in cooling water tank 600 to can the filtering impurity, improve the quality of water of cooling water.
In an alternative, the ion exchanger 520 and the filter 530 may be sequentially disposed in the second pipeline 500, the ion exchanger 520 may be disposed before the filter 530, and impurities generated during the operation of the ion exchanger 520 may be filtered by the filter 530, so that the combined operation of the ion exchanger 520 and the filter 530 may not only control the conductivity of the make-up water, but also play a role in filtering the make-up water impurities.
In the embodiment of the present invention, the embodiment of the present invention can include the water drain pipe 900, the water drain pipe 900 can communicate with the cooling water tank 600, and the water drain pipe 900 can be provided with the drain valve 910. If the water level in the cooling water tank 600 is too high, the cooling water tank 600 may discharge the excessive cooling water through the drain pipe 900.
In an alternative scheme, the drain valve 910 may be a manual drain valve, and in a specific implementation operation process, an operator opens the manual drain valve disposed in the drain pipe 900, and the redundant cooling water can be discharged along the drain pipe 900, and when the discharge operation is completed, the operator closes the manual drain valve. The structure of manual drain valve is comparatively stable, can avoid the higher problem of fault rate that automatically controlled valve 300 exists, ensures the stability that cooling water tank 600 deposited water.
The embodiment of the utility model provides an in, controlling means 700 can include first liquid level switch 710 and the second liquid level switch 720 with the equal electricity of automatically controlled valve 300 is connected, as shown in fig. 2, it is concrete, under the circumstances that current water level is less than or equal to first water level, first liquid level switch 710 control automatically controlled valve 300 is opened, under the circumstances that current water level is greater than the second water level, second liquid level switch 720 control automatically controlled valve 300 is closed, the second water level is greater than first water level, thereby make controlling means 700 detect the water level in coolant tank 600 through first liquid level switch 710 and second liquid level switch 720, and then make controlling means 700 pass through the break-make of automatically controlled valve 300 control pipeline, finally realize coolant tank 600 automatic water supply and make up water pertinently, can enough avoid the water level in coolant tank 600 too low, can avoid the water level in coolant tank 600 too high again.
Under normal conditions, when second level switch 720 detected the moisturizing in coolant tank 600 and reached the second water level, second level switch 720 control electrically controlled valve 300 closed to the realization stopped the moisturizing, when second level switch 720 appeared damaging, the moisturizing in coolant tank 600 can exceed the second water level and spill over coolant tank 600, can lead to the cooling water extravagant.
Based on this, in an optional scheme, the embodiment of the utility model provides a can include third liquid level switch 730 and alarm device, it is concrete, third liquid level switch 730 can be connected with automatically controlled valve 300 electricity, be greater than under the condition of third water level at current water level, and the third water level is greater than the second water level, third liquid level switch 730 can control alarm device and report to the police, whether third liquid level switch 730 can judge second liquid level switch 720 damages, third liquid level switch 730 detects the moisturizing in coolant tank 600 and reaches the third water level, third liquid level switch 730 control automatically controlled valve 300 closes, and then stop the moisturizing, meanwhile, third liquid level switch 730 control alarm device reports to the police, operating personnel discovers the warning, and then can in time handle and maintain second liquid level switch 720.
As above, automatic water supply device can set up alarm device, and alarm device can include at least one in audible alarm and the light alarm to be favorable to reminding operating personnel through sound and light, make things convenient for operating personnel in time to handle, the embodiment of the utility model provides a do not restrict alarm device's specific kind here. Specifically, the sound alarm may be an alarm bell, a buzzer, or the like, and the light alarm may be a flashing light.
The embodiment of the utility model provides an in, controlling means 700 can include remote central control equipment 740, as shown in FIG. 3, and is concrete, first liquid level switch 710, second liquid level switch 720 and third liquid level switch 730 all can through remote central control equipment 740 with automatically controlled valve 300 links to each other, and first liquid level switch 710, second liquid level switch 720 and third liquid level switch 730 detect the current water level in coolant tank 600, and operating personnel can monitor through remote central control equipment 740, is favorable to operating personnel to monitor automatic water supply device's behavior anytime and anywhere.
Based on the embodiment of the utility model discloses automatic water supply device, the embodiment of the utility model discloses a generator stator cooling water system, disclosed generator stator cooling water system include above embodiment automatic water supply device, automatic water supply device can set up on generator stator cooling water system, and is connected with generator stator cooling water system electricity.
The utility model discloses what the key description in the above embodiment is different between each embodiment, and different optimization characteristics are as long as not contradictory between each embodiment, all can make up and form more preferred embodiment, consider that the literary composition is succinct, then no longer describe here.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (10)
1. The automatic water replenishing device is suitable for a stator cooling water system of a generator and is characterized by comprising a power plant demineralized water supply system (100), a first pipeline (200), an electric control valve (300), a water level measuring device (400), a second pipeline (500), a cooling water tank (600) and a control device (700), wherein the power plant demineralized water supply system (100) is communicated with an inlet of the electric control valve (300) through the first pipeline (200), an outlet of the electric control valve (300) is communicated with the cooling water tank (600) through the second pipeline (500), the water level measuring device (400) is arranged in the cooling water tank (600), the water level measuring device (400) is used for detecting the current water level of the cooling water tank (600), and the control device (700) is connected with the water level electric control valve (300) and the water level measuring device (400), the control device (700) controls the on-off of the electric control valve (300) according to the current water level.
2. Automatic water refill device according to claim 1, wherein the first line (200) is provided with a pressure relief valve (210).
3. Automatic water refill device according to claim 1, wherein the second conduit (500) is provided with a non-return valve (510), the electrically controlled valve (300) and the non-return valve (510) being arranged in succession along the direction of the flow of water in the first conduit (200).
4. The automatic water replenishing device according to claim 1, further comprising a bypass line (800), wherein one end of the bypass line (800) is communicated with an inlet of the electronic control valve (300), the other end of the bypass line (800) is communicated with an outlet of the electronic control valve (300), and the bypass line (800) is provided with a switch valve (810).
5. The automatic water refill device according to claim 1, further comprising an ion exchanger (520), wherein the ion exchanger (520) is disposed in the second pipeline (500).
6. The automatic water replenishing device according to claim 5, further comprising a filter (530), wherein the filter (530) is disposed in the second pipe (500), and the ion exchanger (520) and the filter (530) are disposed in sequence in a water flow direction of the second pipe (500).
7. The automatic water replenishing device according to claim 1, further comprising a drain pipe (900), wherein the drain pipe (900) is communicated with the cooling water tank (600), the drain pipe (900) is provided with a drain valve (910), and the drain valve (910) is a manual drain valve.
8. The automatic water replenishing device according to claim 1, wherein the control device (700) comprises a first liquid level switch (710) and a second liquid level switch (720) which are electrically connected with the electric control valve (300), wherein the first liquid level switch (710) controls the electric control valve (300) to be opened when the current water level is less than or equal to a first water level, and the second liquid level switch (720) controls the electric control valve (300) to be closed when the current water level is greater than a second water level, and the second water level is greater than the first water level.
9. The automatic water replenishing device according to claim 8, wherein the control device (700) further comprises a third liquid level switch (730) and an alarm device, the third liquid level switch (730) is electrically connected with the electrically controlled valve (300), the third liquid level switch (730) controls the alarm device to alarm when the current water level is higher than a third water level, the third water level is higher than the second water level, the alarm device comprises at least one of an audio alarm and a light alarm, the control device (700) further comprises a remote central control device (740), and the first liquid level switch (710), the second liquid level switch (720) and the third liquid level switch (730) are all connected with the electrically controlled valve (300) through the remote central control device (740).
10. A generator stator cooling water system comprising the automatic water replenishing apparatus of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202021207211.XU CN212210758U (en) | 2020-06-24 | 2020-06-24 | Automatic water replenishing device and generator stator cooling water system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021207211.XU CN212210758U (en) | 2020-06-24 | 2020-06-24 | Automatic water replenishing device and generator stator cooling water system |
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| CN212210758U true CN212210758U (en) | 2020-12-22 |
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| CN202021207211.XU Active CN212210758U (en) | 2020-06-24 | 2020-06-24 | Automatic water replenishing device and generator stator cooling water system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263450A (en) * | 2022-08-01 | 2022-11-01 | 西安热工研究院有限公司 | Steam turbine generator unit stator cooling water system shutdown maintenance system and maintenance method |
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2020
- 2020-06-24 CN CN202021207211.XU patent/CN212210758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263450A (en) * | 2022-08-01 | 2022-11-01 | 西安热工研究院有限公司 | Steam turbine generator unit stator cooling water system shutdown maintenance system and maintenance method |
| CN115263450B (en) * | 2022-08-01 | 2024-04-23 | 西安热工研究院有限公司 | Maintenance system and maintenance method for stator cooling water system of steam turbine generator unit |
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Address after: 3 liyuanli, Chaoyang District, Beijing 100025 Patentee after: China Shenhua Energy Co.,Ltd. Guohua Power Branch Patentee after: Guoneng Jinjie Energy Co.,Ltd. Patentee after: HARBIN ELECTRIC MACHINERY Co.,Ltd. Address before: 3 liyuanli, Chaoyang District, Beijing 100025 Patentee before: China Shenhua Energy Co.,Ltd. Guohua Power Branch Patentee before: SHAANXI GUOHUA JINJIE ENERGY Co.,Ltd. Patentee before: HARBIN ELECTRIC MACHINERY Co.,Ltd. |