CN219414732U - Boiler water supply device for cement waste heat power station - Google Patents
Boiler water supply device for cement waste heat power station Download PDFInfo
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- CN219414732U CN219414732U CN202223386224.XU CN202223386224U CN219414732U CN 219414732 U CN219414732 U CN 219414732U CN 202223386224 U CN202223386224 U CN 202223386224U CN 219414732 U CN219414732 U CN 219414732U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses a cement waste heat power station boiler water supply device, which comprises: the 4# water feed pump is connected with the 1# kiln head boiler through a fourth water feed pipe, and a third control valve is arranged on the fourth water feed pipe close to the 4# water feed pump; the 3# water supply pump is connected with a fourth water supply pipe through a fifth water supply pipe, and a fourth control valve is arranged on the fifth water supply pipe; the 2# water supply pump is connected with the 3# kiln tail boiler through a first water supply pipe, and a second control valve is arranged on the first water supply pipe close to the 2# water supply pump; the No. 1 water supply pump is connected with the first water supply pipe through a third water supply pipe, and a first control valve is arranged on the third water supply pipe; the No. 3 kiln head boiler is connected with the first water supply pipe through a second water supply pipe; one end of a fifth water supply pipe is connected with the second water supply pipe, the other end of the fifth water supply pipe is connected with the fourth water supply pipe, and a fifth control valve is arranged on the fifth water supply pipe; the display is provided with a control module; the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve and the display are all electrically connected with the control module.
Description
Technical Field
The utility model relates to boiler water supply equipment, in particular to a cement waste heat power station boiler water supply device.
Background
3# power stations of Guangxi Yufeng cement Co Ltd are put into production, 3# power stations are provided with 3 boilers, and the boilers are respectively: a 3# kiln head boiler, a 3# kiln tail boiler and a 1# kiln head boiler. The kiln head boiler 3 and the kiln tail boiler 3 are kiln head and kiln tail waste heat boilers of a dry cement production line 3# and kiln head boiler 1 is kiln head waste heat boiler of a semi-dry cement production line 1 #. The No. 3 power station designs 4 boiler feed pumps, wherein the No. 1 feed pump and the No. 2 feed pump supplement water for the No. 3 kiln head and kiln tail waste heat boiler, and the No. 3 feed pump and the No. 4 feed pump supplement water for the No. 1 kiln head waste heat boiler, and the No. 1 kiln head waste heat boiler is used for one standby.
The inventors found in operation that: 1. the power of the No. 2 water supply pump is 55KW, the current is 102A, and the flow is 35 m 3 /h; 3. the power of the 4# water supply pump is 45KW, the current is 83A, and the flow is 25 m 3 /h; the total flow of steam generated by 3 boilers is 25 m 3 And/h. The single-start No. 1 or No. 2 water supply pump can completely meet the water supply quantity of three boilers, the No. 3 or No. 4 water supply pump is not required to be started to supply water to the No. 1 kiln head boiler, resources are wasted, and the power generation efficiency cannot be improved. Therefore, in view of the drawbacks of the prior art, there is a need for a water supply device for a cement waste heat power station boiler, which can supply water to three boilers simultaneously.
Disclosure of Invention
The utility model aims at overcoming the defects of the prior art and provides a water supply device of a cement waste heat power station boiler.
In order to achieve the above object of the present utility model, the following technical scheme is adopted:
a cement waste heat power station boiler water supply device comprises a No. 1 kiln head boiler, a No. 3 kiln tail boiler, a No. 1 water supply pump, a No. 2 water supply pump, a No. 3 water supply pump, a No. 4 water supply pump, a fifth water supply pipe, a fifth control valve, a control module and a display; the 4# water feed pump is connected with the 1# kiln head boiler through a fourth water feed pipe, and a third control valve is arranged on the fourth water feed pipe close to the 4# water feed pump; the 3# water supply pump is connected with a fourth water supply pipe through a fifth water supply pipe, and a fourth control valve is arranged on the fifth water supply pipe; the 2# water feeding pump is connected with the 3# kiln tail boiler through a first water feeding pipe, and a second control valve is arranged on the first water feeding pipe close to the 2# water feeding pump; the No. 1 water supply pump is connected with the first water supply pipe through a third water supply pipe, and a first control valve is arranged on the third water supply pipe; the 3# kiln head boiler is connected with the first water supply pipe through a second water supply pipe; one end of the fifth water supply pipe is connected with the second water supply pipe, the other end of the fifth water supply pipe is connected with the fourth water supply pipe, and a fifth control valve is arranged on the fifth water supply pipe; the display is provided with a control module; the first control valve, the second control valve, the third control valve, the fourth control valve, the fifth control valve and the display are all electrically connected with the control module. As common knowledge in the art, the control module used in the scheme and the motion control of the device connected with the control module belong to a mature singlechip technology, can be easily purchased from the market, and can be used after simple debugging.
Further, the water supply device of the cement waste heat power station boiler further comprises a first pressure sensor; the first pressure sensor is arranged in the No. 1 kiln head boiler and is electrically connected with the control module.
Further, the water supply device of the cement waste heat power station boiler also comprises a flowmeter; the flowmeter is arranged on the sixth water supply pipe and is close to the outlet end of the fifth control valve, and the flowmeter is electrically connected with the control module.
Further, the water supply device of the cement waste heat power station boiler further comprises a sixth control valve; the sixth control valve is installed on the sixth water supply pipe and is located at the outlet side of the flowmeter.
Further, the water supply device of the cement waste heat power station boiler further comprises a second pressure sensor; the second pressure sensor is arranged on the first water supply pipe and can be close to the # water supply pump; the second pressure sensor is electrically connected with the control module.
Further, the water supply device of the cement waste heat power station boiler also comprises a camera; the camera is installed corresponding to the second pressure sensor and is electrically connected with the control module.
Further, the water supply device of the cement waste heat power station boiler also comprises a support frame; the support frame is close to the first water supply pipe and used for supporting and mounting the camera.
Further, the water supply device of the cement waste heat power station boiler also comprises a third pressure sensor and a fourth pressure sensor; the third pressure sensor is arranged at the 3# kiln tail boiler; the fourth pressure sensor is arranged on the 3# kiln head boiler; and the third pressure sensor and the fourth pressure sensor are electrically connected with the control module.
Further, the water supply device of the cement waste heat power station boiler also comprises a warning lamp; the warning lamp is electrically connected with the control module.
Compared with the prior art, the utility model has the advantages that:
the utility model can adopt one water feed pump to feed water to three boilers, and can also adopt three water feed pumps as standby pumps. The boiler with the kiln head 1, the boiler with the kiln head 3 and the boiler with the kiln tail 3 are fed by a feed pump 1 or a feed pump 2, so that the feed pump 1 or the feed pump 2, the feed pump 3 and the feed pump 4 are used as standby pumps, one feed pump can feed water to three boilers simultaneously, the number of the feed pumps is reduced, the electric quantity loss of the feed pump can be reduced, and the production cost is reduced; in the production process, the first sensor monitors the pressure of the boiler steam drum at the 1# kiln head in real time, the pressure of the boiler steam drum at the 1# kiln head is higher than the set highest pressure value of the first pressure sensor, the control module controls the 3# water feeding pump or the 4# water feeding pump to feed water to the boiler at the 1# kiln head, and meanwhile, the fourth water feeding pipe is cut off from being communicated with the second water feeding pipe, so that the pressure of the boiler at the 1# kiln head can be controlled to fall to a set allowable range.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic view of a water supply apparatus for a cement waste heat power station boiler according to the present utility model;
FIG. 2 is a schematic view of another construction of a boiler feedwater device for a cement waste heat power station according to the present utility model;
the names and serial numbers of the components in the figure:
the system comprises a 1# 1 kiln head boiler, a 2-first pressure sensor, a 3# 3 kiln head boiler, a 4-3# kiln tail boiler, a 5-first water supply pipe, a 6-second water supply pipe, a 7-first control valve, an 8-third water supply pipe, a 9-1# water supply pump, a 10-second control valve, a 11-2# water supply pump, a 12-4# water supply pump, a 13-3# water supply pump, a 14-third control valve, a 15-fourth water supply pipe, a 16-fourth control valve, a 17-fifth water supply pipe, a 18-control module, a 19-display, a 20-sixth water supply pipe, a 21-fifth control valve, a 22-second pressure sensor, a 23-support frame, a 24-camera, a 25-third pressure sensor, a 26-fourth pressure sensor, a 27-sixth control valve and a 28-flowmeter.
Detailed Description
In order to make the technical solutions of the present application better understood by those skilled in the art, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings and examples, and it is apparent that the described examples are only a part of examples of the present application, and all other examples obtained by those skilled in the art without making any inventive effort are intended to be within the scope of protection of the present application.
As shown in fig. 1 and 2, the water supply device of the cement waste heat power station boiler can be applied to a boiler water supply pipeline of a cement waste heat thermal power station. The adopted structure comprises a No. 1 kiln head boiler 1, a No. 3 kiln head boiler 2, a No. 3 kiln tail boiler 4, a No. 1 water feed pump 9, a No. 2 water feed pump 11, a No. 3 water feed pump 13, a No. 4 water feed pump 12, a sixth water feed pipe 20, a fifth control valve 21, a control module 18, a display 19 and a first pressure sensor 2; the 4# water feed pump 12 is connected with the 1# kiln head boiler 1 through a fourth water feed pipe 15, and a third water feed pump 14 is arranged near the 4# water feed pump 12 on the fourth water feed pipe 15; the 3# water feed pump 13 is connected to the fourth water feed pipe 15 through a fifth water feed pipe 17, and a fourth control valve 16 is installed on the fifth water feed pipe 17; the No. 2 water feed pump 11 is connected with the No. 3 kiln tail boiler 4 through a first water feed pipe 5, and a second control valve 10 is arranged on the first water feed pipe 5 close to the No. 2 water feed pump 11; the No. 1 water supply pump 9 is connected with the first water supply pipe 5 through a third water supply pipe 8, and a first control valve 7 is arranged on the third water supply pipe 8; the kiln head boiler 3# is connected with the first water supply pipe 5 through the second water supply pipe 6; one end of the sixth water feed pipe 20 is connected to the second water feed pipe 6, the other end is connected to the fourth water feed pipe 15, and a fifth control valve 21 is mounted on the sixth water feed pipe 20; the display 19 has a control module 18; the first pressure sensor 2 is arranged on the steam drum of the No. 1 kiln head boiler and is used for monitoring the pressure of the steam drum of the No. 1 kiln head boiler; the first control valve 7, the second control valve 10, the third control valve 14, the fourth control valve 16, the fifth control valve 21, the display 19 and the first pressure sensor 2 are all electrically connected with the control module 18.
The first control valve 7, the second control valve 10, the third control valve 14, the fourth control valve 16, and the fifth control valve 21 are electrically controlled. The control module can control the first control valve 7, the second control valve 10, the third control valve 14, the fourth control valve 16 and the fifth control valve 21 in a unified way.
The sixth water feed pipe 20 is connected to the second water feed pipe 6, and feeds water to the fourth water feed pipe 15, and the fourth water feed pipe 15 feeds water to the kiln head boiler # 1.
The using mode is as follows:
the 3# water feed pump 13 and the 4# water feed pump 12 serve as standby water feed pumps of the 1# kiln head boiler 1. The third control valve 14 and the fourth control valve 16 are in a closed state.
The 1# water feed pump 9 is operated, the 2# water feed pump 11 is used as a standby pump, and the second control valve 10 is closed.
The fifth control valve 21 and the first control valve 7 are both opened, and the 1# water feed pump 9 simultaneously and correspondingly feeds water to the 1# kiln head boiler 1, the 3# kiln head boiler 2 and the 3# kiln tail boiler 4 through the first water feed pipe 5, the second water feed pipe 6 and the sixth water feed pipe 20.
The first pressure sensor 2 is arranged on the steam drum of the No. 1 kiln head boiler, the first pressure sensor 2 transmits the monitored pressure data to the control module 18 in real time, and the control module 18 displays corresponding data information through the display 19. When the first pressure sensor 2 detects that the pressure in the steam drum of the No. 1 kiln head boiler is larger than the set pressure value, the control module 18 controls the fourth control valve 16 to be opened, the No. 3 water feeding pump 13 to be started, the fifth control valve 21 to be closed, and the No. 1 kiln head boiler is fed with water by the No. 3 water feeding pump. Alternatively, the control module 18 controls the third control valve 14 to open and the 4# water feed pump 12 to start, the fifth control valve 21 to close, and the 1# kiln head boiler is fed with water by the 4# water feed pump.
When the drum pressure of the No. 1 kiln head boiler is reduced to the set range, the control module 18 controls the No. 3 water feed pump or the No. 4 water feed pump which is started to work before and the corresponding control valve of the water feed pump, and simultaneously opens the fifth control valve 21, and the No. 1 kiln head boiler resumes water feed by the No. 1 water feed pump.
It will be appreciated that the 2# feed pump 11 is operated and the 1# feed pump 9 acts as a backup pump and the first control valve 7 is closed. The principle of operation is the same as the above-described manner of use.
As shown in fig. 2, a flow meter 28 is added to facilitate knowledge of the feedwater flow of the sixth feedwater conduit 20. A flow meter 28 is mounted to the sixth feed pipe 20 near the outlet end of the fifth control valve 21, and the flow meter 28 is electrically connected to the control module 18.
The flow meter 28 is used to monitor the flow of feedwater to the sixth feedwater conduit 20 and to communicate data information to the control module 18 in real-time. The control module 18 displays the corresponding flow information through the display 19, so that the operator can conveniently obtain the water supply flow data of the fifth water supply pipe.
As shown in fig. 2, in order to prevent the water backflushing flow meter from being added when the 3# water feeding pump or the 4# water feeding pump needs to be used, a sixth control valve 27 is added; the sixth control valve 27 is mounted to the sixth water feed pipe 20 and is located on the outlet side of the flow meter 28.
In the production process, when the pressure of the steam drum of the 1# kiln head boiler 1 exceeds a set pressure value, the 3# water feed pump or the 4# water feed pump is started at the moment, the corresponding control valve is opened, and meanwhile, the sixth control valve 27 is closed, so that when the 3# water feed pump or the 4# water feed pump feeds water, the water of the fourth water feed pipe 15 can be prevented from backflushing the flowmeter 28 through the sixth water feed pipe 20, and the flowmeter can be protected.
As shown in fig. 2, in order to facilitate the knowledge of the pressure of the first water feed pipe 5, a second pressure sensor 22 is added.
The second pressure sensor 22 is installed on the first water supply pipe 5 and can be close to the No. 1 water supply pump 9; the second pressure sensor 22 is electrically connected to the control module 18.
The second pressure sensor 22 monitors the first water supply pipe 5 in real time and transmits data to the control module 18 in real time, and the control module 18 displays corresponding data information through the display 19, so that an operator can know the water pressure of the first water supply pipe 5 in time.
As shown in fig. 2, in order to know whether the data displayed on the second pressure sensor 22 deviates from the data transmitted to the control module, a camera 24 is added. The camera 24 is mounted in correspondence with the second pressure sensor 22 and is electrically connected with the control module 18.
The display and the control module installed on the display are usually arranged in a control room of a production workshop, and an operator in the control room can compare the data displayed on the second pressure sensor 22 shot by a camera with the data transmitted to the control module by the second pressure sensor 22 so as to ensure that the first water supply pipe normally supplies water to the 1# kiln head boiler 1, the 3# kiln head boiler 2 and the 3# kiln tail boiler 4.
As shown in fig. 2, a supporting frame 23 is additionally installed for the convenience of installing the camera.
The support frame 23 is installed near the first water supply pipe 5 for supporting and installing the camera 24.
As shown in fig. 2, a third pressure sensor 25 and a fourth pressure sensor 26 are additionally installed. The third pressure sensor 25 is arranged on the steam drum of the 3# kiln tail boiler 4; the fourth pressure sensor 26 is arranged on a steam drum of the 3# kiln head boiler 3; wherein, third pressure sensor 25, fourth pressure sensor 26 all are connected with the control module electricity.
The third pressure sensor 25 monitors the drum pressure of the 3# kiln tail boiler 4 in real time, and transmits corresponding data information to the control module 18 in real time, and the control module 18 displays the corresponding data information through the display 19.
The fourth pressure sensor 26 monitors the drum pressure of the 3# kiln head boiler 3 in real time, and transmits corresponding data information to the control module 18 in real time, and the control module 18 displays the corresponding data information through the display 19.
As shown in fig. 1 and 2, in order to facilitate the operator to know in time that the drum pressure of the 1# kiln head boiler is too high, a warning lamp 29 is added. Warning lights 29. The control module 18 is electrically connected.
The first pressure sensor 2 monitors the drum pressure of the No. 1 kiln head boiler in real time, when the drum pressure of the No. 1 kiln head boiler exceeds the highest pressure value set by the first pressure sensor 2, the control module 18 instantly controls the warning lamp to flash and give an alarm, and meanwhile controls the No. 3 water feeding pump or the No. 4 water feeding pump to control the corresponding control valve to start, and the fifth control valve 21 is closed. When the pressure value is lower than the highest pressure value, the warning lamp stops working.
After the cement waste heat power station boiler water supply device is put into use, unnecessary electric quantity loss is greatly reduced. The same daily power generation amount runs 1 water supply pump, more than 2 water supply pumps are powered for 1080 degrees, the 3# power station is removed from shutdown maintenance for about 35 days in one year, more than 1080 x 330= 356400 degrees of electricity can be supplied, and the benefit of 21.38 ten thousand yuan per year can be improved according to 0.6 yuan per degree of electricity. The utility model can apply 1 water feed pump to work, and the other three water feed pumps are used as standby, so that the reliability of the water feed pump can be greatly improved, thereby being beneficial to the stable work of a generator set, avoiding the stop accident caused by the incapability of using the water feed pump, correspondingly prolonging the service life of the water feed pump, and saving the maintenance cost of the water feed pump by about 10 ten thousand yuan per year. The two items save 31.38 ten thousand yuan each year.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being within the scope of the utility model, obvious variations or modifications may be made thereto.
Claims (9)
1. A cement waste heat power station boiler water supply device comprises a 1# kiln head boiler (1), a 3# kiln head boiler (3), a 3# kiln tail boiler (4), a 1# water supply pump (9), a 2# water supply pump (11), a 3# water supply pump (13) and a 4# water supply pump (12);
the 4# water supply pump (12) is connected with the 1# kiln head boiler (1) through a fourth water supply pipe (15), and a third control valve (14) is arranged on the fourth water supply pipe (15) close to the 4# water supply pump (12); the No. 3 water supply pump (13) is connected with a fourth water supply pipe (15) through a fifth water supply pipe (17), and a fourth control valve (16) is arranged on the fifth water supply pipe (17);
the No. 2 water supply pump (11) is connected with the No. 3 kiln tail boiler (4) through a first water supply pipe (5), and a second control valve (10) is arranged on the first water supply pipe (5) close to the No. 2 water supply pump (11); the No. 1 water supply pump (9) is connected with the first water supply pipe (5) through a third water supply pipe (8), and a first control valve (7) is arranged on the third water supply pipe (8);
the 3# kiln head boiler (3) is connected with the first water supply pipe (5) through the second water supply pipe (6);
the method is characterized in that: the system also comprises a sixth water supply pipe (20), a fifth control valve (21), a control module (18) and a display (19);
one end of the sixth water supply pipe (20) is connected with the second water supply pipe (6), the other end of the sixth water supply pipe is connected with the fourth water supply pipe (15), and a fifth control valve (21) is arranged on the sixth water supply pipe (20);
the display (19) has a control module (18);
the first control valve (7), the second control valve (10), the third control valve (14), the fourth control valve (16), the fifth control valve (21) and the display (19) are electrically connected with the control module (18).
2. The cement waste heat power plant boiler water supply apparatus according to claim 1, wherein: also comprises a first pressure sensor (2);
the first pressure sensor (2) is arranged in the No. 1 kiln head boiler (1) and is electrically connected with the control module (18).
3. The cement waste heat power plant boiler water supply apparatus according to claim 1, wherein: further comprising a flow meter (28);
the flowmeter (28) is mounted on the sixth water supply pipe (20) and is close to the outlet end of the fifth control valve (21), and the flowmeter (28) is electrically connected with the control module (18).
4. A cement waste heat power station boiler feedwater device according to claim 3, wherein: further comprising a sixth control valve (27);
the sixth control valve (27) is mounted on the sixth water supply pipe (20) and is located on the outlet side of the flowmeter (28).
5. The cement waste heat power plant boiler water supply apparatus according to claim 1, wherein: also includes a second pressure sensor (22);
the second pressure sensor (22) is arranged on the first water supply pipe (5) and can be close to the No. 1 water supply pump (9); the second pressure sensor (22) is electrically connected to the control module (18).
6. The cement waste heat power plant boiler water supply apparatus according to claim 5, wherein: also comprises a camera (24);
the camera (24) is mounted in correspondence with the second pressure sensor (22) and is electrically connected with the control module (18).
7. The cement waste heat power plant boiler water supply apparatus according to claim 6, wherein: also comprises a supporting frame (23);
the supporting frame (23) is installed close to the first water supply pipe (5) and used for supporting and installing the camera (24).
8. The cement waste heat power plant boiler water supply apparatus according to claim 1, wherein: the device also comprises a third pressure sensor (25) and a fourth pressure sensor (26);
the third pressure sensor (25) is arranged at the 3# kiln tail boiler (4);
the fourth pressure sensor (26) is arranged on the 3# kiln head boiler (3);
wherein, the third pressure sensor (25) and the fourth pressure sensor (26) are electrically connected with the control module (18).
9. A cement waste heat power station boiler feedwater device according to any of claims 1-8, wherein: also comprises a warning lamp (29);
the warning lamp (29) is electrically connected with the control module (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386224.XU CN219414732U (en) | 2022-12-16 | 2022-12-16 | Boiler water supply device for cement waste heat power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223386224.XU CN219414732U (en) | 2022-12-16 | 2022-12-16 | Boiler water supply device for cement waste heat power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219414732U true CN219414732U (en) | 2023-07-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223386224.XU Active CN219414732U (en) | 2022-12-16 | 2022-12-16 | Boiler water supply device for cement waste heat power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219414732U (en) |
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2022
- 2022-12-16 CN CN202223386224.XU patent/CN219414732U/en active Active
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