CN209974425U - Automatic phosphate adding device for thermal power station - Google Patents
Automatic phosphate adding device for thermal power station Download PDFInfo
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- CN209974425U CN209974425U CN201920426859.7U CN201920426859U CN209974425U CN 209974425 U CN209974425 U CN 209974425U CN 201920426859 U CN201920426859 U CN 201920426859U CN 209974425 U CN209974425 U CN 209974425U
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- valve
- medicine
- buffer
- metering pump
- water inlet
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Abstract
The utility model discloses an automatic phosphate adding device of a thermal power station, which comprises two sets of automatic phosphate adding devices which are connected in parallel and have the same structure; one set of automatic phosphate adding device comprises a first water inlet electric valve (2-1) connected with a water inlet pipe (19), a first solution tank (4-1) connected with the first water inlet electric valve (2-1), a first sewage discharging valve (6-1) and a first medicine outlet electric valve (7-1) which are connected with the bottom of the first solution tank (4-1), wherein the first medicine outlet electric valve (7-1) is sequentially connected with a first medicine inlet manual valve (8-1), a first metering pump (10-1) is connected with the first buffer (13-1), and a first medicine adding manual valve (17-1) is connected with a medicine adding port (20). The utility model has reasonable structure design, can realize automatic medicine dispensing and automatic medicine feeding, and has high automation degree; the flow of the metering pump is controlled by the frequency converter, and the dosing amount is accurate.
Description
Technical Field
The utility model relates to a phosphate device that adds of thermal power station.
Background
In a chemical feeding system of a thermal power station, a phosphate feeding device maintains a certain phosphate concentration by adding phosphate solution with a certain concentration into boiler water, so that the purpose of scale prevention is achieved. At present, phosphate adding devices in China manually mix phosphate concentration in advance, a metering pump is manually controlled to deliver phosphate solution to boiler water according to downstream phosphate concentration, the dosing concentration cannot be controlled in the dosing process, and dosing is inaccurate; in addition, the existing phosphate adding device has low automation degree.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to solve the defects of the prior art, and provides a water-saving water dispenser which has reasonable structural design and can adjust the concentration ratio of a medium by automatically controlling the water inflow; the frequency converter is adopted to automatically control the dosage of the metering pump according to the downstream phosphate radical value, so that the working efficiency is high and the automation degree is high.
The technical scheme is as follows: in order to realize the above purpose, the utility model discloses the technical scheme who adopts as follows:
an automatic phosphate adding device for a thermal power station comprises two sets of automatic phosphate adding devices which are connected in parallel and have the same structure; one set of automatic phosphate adding device comprises a first water inlet electric valve connected with a water inlet pipe, a first solution tank connected with the first water inlet electric valve, a first sewage draining valve connected with the bottom of the first solution tank and a first medicine outlet electric valve, wherein the first medicine outlet electric valve is connected with a first medicine inlet manual valve which is connected with a first metering pump; the first metering pump is connected with a first buffer, the first buffer is connected with a first dosing manual valve, and the first dosing manual valve is connected with a dosing port; the first metering pump is connected with the first frequency converter;
a first dissolving frame and a first stirring device are arranged above the first solution tank; a first magnetic turning plate liquid level meter is arranged on the first solution tank;
the other set of automatic phosphate adding device comprises a second water inlet electric valve connected with the water inlet pipe, a second solution tank connected with the second water inlet electric valve, a second sewage discharge valve and a second medicine outlet electric valve which are connected with the bottom of the second solution tank, wherein the second medicine outlet electric valve is connected with a second medicine inlet manual valve which is connected with a second metering pump; the second metering pump is connected with a second buffer, the second buffer is connected with a second dosing manual valve, and the second dosing manual valve is connected with a dosing port; the second metering pump is connected with the second frequency converter;
a second dissolving frame and a second stirring device are arranged above the second solution tank; a second solution tank is provided with a second magnetic turning plate liquid level meter;
wherein the first dosing manual valve is connected with the second dosing manual valve through an electric valve;
the first electric valve for water inflow, the second electric valve for water inflow, the first magnetic turning plate liquid level meter and the second magnetic turning plate liquid level meter are all connected with the control system.
As a preferred scheme, in the automatic phosphate adding device for the thermal power station, the first buffer is sequentially connected with the first pressure gauge valve and the first pressure gauge;
and the second buffer is sequentially connected with a second pressure gauge valve and a second pressure gauge.
As a preferred scheme, in the automatic phosphate adding device for the thermal power station, a first Y-shaped filter is installed between the first chemical feeding manual valve and the first metering pump;
and a second Y-shaped filter is arranged between the second medicine feeding manual valve and the second metering pump.
As a preferable scheme, in the automatic phosphate adding device for the thermal power station, a first check valve is installed between the first buffer and the first manual medicine adding valve;
a second check valve is arranged between the second buffer and the second dosing manual valve.
As a preferred scheme, the first frequency converter and the second frequency converter of the automatic phosphate adding device for the thermal power station are connected with a liquid level meter of a chemical adding port.
As a preferred scheme, in the automatic phosphate adding device for the thermal power station, a first safety valve is installed between a first frequency converter and a first buffer; and a second safety valve is arranged between the second frequency converter and the second buffer.
The first and second stirring devices may be electric mixers of the conventional market.
Has the advantages that: the utility model provides an automatic phosphate device that adds of thermal power station compares with prior art, and it is showing the advantage and lies in:
the utility model provides an automatic phosphate adding device for a thermal power station, which has reasonable structural design, can realize automatic medicine dispensing and automatic medicine adding, and has high automation degree; the device is suitable for adding various solid medicines; the flow of the metering pump is controlled by the frequency converter, and the dosing amount is accurate.
Drawings
Fig. 1 is the structure schematic diagram of the automatic phosphate adding device of the thermal power station provided by the utility model.
Detailed Description
The present invention will be further clarified by the following description with reference to the attached drawings and specific examples, which should be understood as being merely illustrative of the present invention and not limiting the scope of the present invention, and modifications of various equivalent forms of the present invention by those skilled in the art after reading the present invention, all fall within the scope defined by the appended claims of the present application.
As shown in fig. 1, an automatic phosphate adding device for a thermal power station comprises two sets of automatic phosphate adding devices which are connected in parallel and have the same structure; one set of automatic phosphate adding device comprises a first water inlet electric valve 2-1 connected with a water inlet pipe 19, a first solution tank 4-1 connected with the first water inlet electric valve 2-1, a first sewage discharge valve 6-1 and a first drug outlet electric valve 7-1 connected with the bottom of the first solution tank 4-1, wherein the first drug outlet electric valve 7-1 is connected with a first drug inlet manual valve 8-1, and the first drug inlet manual valve 8-1 is connected with a first metering pump 10-1; the first metering pump 10-1 is connected with a first buffer 13-1, the first buffer 13-1 is connected with a first dosing manual valve 17-1, and the first dosing manual valve 17-1 is connected with a dosing port 20; the first metering pump 10-1 is connected with the first frequency converter 11-1;
a first dissolving frame 1-1 and a first stirring device 3-1 are arranged above the first solution tank 4-1; a first magnetic turning plate liquid level meter 5-1 is arranged on the first solution tank 4-1;
the other set of automatic phosphate adding device comprises a second water inlet electric valve 2-2 connected with the water inlet pipe 19, a second solution tank 4-2 connected with the second water inlet electric valve 2-2, a second sewage discharge valve 6-2 and a second medicine outlet electric valve 7-2 connected with the bottom of the second solution tank 4-2, the second medicine outlet electric valve 7-2 is connected with a second medicine inlet manual valve 8-2, and the second medicine inlet manual valve 8-2 is connected with a second metering pump 10-2; the second metering pump 10-2 is connected with a second buffer 13-2, the second buffer 13-2 is connected with a second dosing manual valve 17-2, and the second dosing manual valve 17-2 is connected with a dosing port 20; the second metering pump 10-2 is connected with the second frequency converter 11-2;
a second dissolving frame 1-2 and a second stirring device 3-2 are arranged above the second solution tank 4-2; a second magnetic turning plate liquid level meter 5-2 is arranged on the second solution tank 4-2;
wherein the first dosing manual valve 17-1 is connected with the second dosing manual valve 17-2 through an electric valve 18;
the first water inlet electric valve 2-1, the second water inlet electric valve 2-2, the first magnetic turning plate liquid level meter 5-1 and the second magnetic turning plate liquid level meter 5-2 are connected with a control system;
the first buffer 13-1 is sequentially connected with a first pressure gauge valve 14-1 and a first pressure gauge 15-1;
and the second buffer 13-2 is sequentially connected with a second pressure gauge valve 14-2 and a second pressure gauge 15-2.
A first Y-shaped filter 9-1 is arranged between the first medicine feeding manual valve 8-1 and the first metering pump 10-1;
a second Y-shaped filter 9-2 is arranged between the second medicine feeding manual valve 8-2 and the second metering pump 10-2.
A first check valve 16-1 is arranged between the first buffer 13-1 and the first dosing manual valve 17-1;
a second check valve 16-2 is arranged between the second buffer 13-2 and the second dosing manual valve 17-2.
According to the automatic phosphate adding device for the thermal power station, the first frequency converter 11-1 and the second frequency converter 11-2 are connected with the liquid level meter of the chemical adding port 20.
According to the automatic phosphate adding device for the thermal power station, the first safety valve 12-1 is arranged between the first frequency converter 11-1 and the first buffer 13-1; a second safety valve 12-2 is arranged between the second frequency converter 11-2 and the second buffer 13-2.
The utility model provides a pair of automatic phosphate device that adds of thermal power station: before working, a control system is opened, and a first medicine feeding manual valve 8-1, a first pressure gauge valve 14-1 and a first medicine feeding manual valve 17-1 are opened;
when the electromagnetic valve works, the first water inlet electric valve 2-1 and the second water inlet electric valve 2-2 are opened to start water inlet, the first magnetic turning plate liquid level meter 5-1 and the second magnetic turning plate liquid level meter 5-2 measure liquid levels, and the valves are closed when a certain liquid level height is reached; adding a medicine into the first dissolving frame 1-1 and the second dissolving frame 1-2 for adding, and pneumatically stirring by the first stirring device 3-1 and the second stirring device 3-2 to promote the medicine to be dissolved and uniformly mixed; the first medicine discharging electric valve 7-1 is opened, the first metering pump 10-1 is opened to start medicine feeding, and the first frequency converter 11-1 adjusts the medicine feeding amount of the first metering pump 10-1 according to the medicine feeding point signal feedback; after the medicine is added in the first solution tank 4-1, the first medicine outlet electric valve 7-1 is closed, and the second medicine outlet electric valve 7-2 is opened;
switching the standby second metering pump 10-2, manually closing the first medicine feeding manual valve 8-1, the first pressure gauge valve 14-1 and the first medicine adding manual valve 17-1, opening the second medicine feeding manual valve 8-2, the second pressure gauge valve 14-2 and the second medicine adding manual valve 17-2, opening the standby switching electric valve 18, and starting the second metering pump 10-2
When the work is finished, the first metering pump 10-1 and the second metering pump 10-2 are closed, the first medicine feeding manual valve 8-1, the second medicine feeding manual valve 8-2, the first pressure gauge valve 14-1, the second pressure gauge valve 14-2, the first medicine adding manual valve 17-1 and the second medicine adding manual valve 17-2 are respectively closed, the control system is closed, and the first sewage discharging valve 6-1 and the second sewage discharging valve 6-2 are opened for sewage discharging.
Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. The present invention is intended to cover by those skilled in the art various modifications and adaptations of the invention without departing from the spirit and scope of the invention. Therefore, the protection scope of the present invention is subject to the claims.
Claims (6)
1. An automatic phosphate adding device for a thermal power station is characterized by comprising two sets of automatic phosphate adding devices which are connected in parallel and have the same structure; one set of automatic phosphate adding device comprises a first water inlet electric valve (2-1) connected with a water inlet pipe (19), a first solution tank (4-1) connected with the first water inlet electric valve (2-1), a first sewage discharging valve (6-1) and a first medicine outlet electric valve (7-1) connected with the bottom of the first solution tank (4-1), wherein the first medicine outlet electric valve (7-1) is connected with a first medicine inlet manual valve (8-1), and the first medicine inlet manual valve (8-1) is connected with a first metering pump (10-1); the first metering pump (10-1) is connected with the first buffer (13-1), the first buffer (13-1) is connected with the first dosing manual valve (17-1), and the first dosing manual valve (17-1) is connected with the dosing port (20); the first metering pump (10-1) is connected with the first frequency converter (11-1);
a first dissolving frame (1-1) and a first stirring device (3-1) are arranged above the first solution tank (4-1); a first magnetic turning plate liquid level meter (5-1) is arranged on the first solution tank (4-1);
the other set of automatic phosphate adding device comprises a second water inlet electric valve (2-2) connected with a water inlet pipe (19), a second solution tank (4-2) connected with the second water inlet electric valve (2-2), a second sewage discharge valve (6-2) and a second medicine outlet electric valve (7-2) connected with the bottom of the second solution tank (4-2), the second medicine outlet electric valve (7-2) is connected with a second medicine inlet manual valve (8-2), and the second medicine inlet manual valve (8-2) is connected with a second metering pump (10-2); the second metering pump (10-2) is connected with the second buffer (13-2), the second buffer (13-2) is connected with the second dosing manual valve (17-2), and the second dosing manual valve (17-2) is connected with the dosing port (20); the second metering pump (10-2) is connected with the second frequency converter (11-2);
a second dissolving frame (1-2) and a second stirring device (3-2) are arranged above the second solution tank (4-2); a second magnetic turning plate liquid level meter (5-2) is arranged on the second solution tank (4-2);
wherein the first dosing manual valve (17-1) is connected with the second dosing manual valve (17-2) through an electric valve (18);
the first water inlet electric valve (2-1), the second water inlet electric valve (2-2), the first magnetic turning plate liquid level meter (5-1) and the second magnetic turning plate liquid level meter (5-2) are connected with a control system.
2. The automatic phosphate adding device for the thermal power station as claimed in claim 1, wherein the first buffer (13-1) is sequentially connected with a first pressure gauge valve (14-1) and a first pressure gauge (15-1);
the second buffer (13-2) is sequentially connected with a second pressure gauge valve (14-2) and a second pressure gauge (15-2).
3. The automatic phosphate adding device for the thermal power station as claimed in claim 1, wherein a first Y-shaped filter (9-1) is arranged between the first chemical feeding manual valve (8-1) and the first metering pump (10-1);
a second Y-shaped filter (9-2) is arranged between the second medicine feeding manual valve (8-2) and the second metering pump (10-2).
4. The automatic phosphate adding device for the thermal power station as claimed in claim 1, wherein a first check valve (16-1) is arranged between the first buffer (13-1) and the first manual medicine adding valve (17-1);
a second check valve (16-2) is arranged between the second buffer (13-2) and the second dosing manual valve (17-2).
5. The automatic phosphate adding device for the thermal power station as claimed in claim 4, wherein the first frequency converter (11-1) and the second frequency converter (11-2) are connected with a liquid level meter of the chemical adding port (20).
6. The automatic phosphate adding device for the thermal power station according to claim 5, wherein a first safety valve (12-1) is installed between the first frequency converter (11-1) and the first buffer (13-1); a second safety valve (12-2) is arranged between the second frequency converter (11-2) and the second buffer (13-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920426859.7U CN209974425U (en) | 2019-03-29 | 2019-03-29 | Automatic phosphate adding device for thermal power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920426859.7U CN209974425U (en) | 2019-03-29 | 2019-03-29 | Automatic phosphate adding device for thermal power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209974425U true CN209974425U (en) | 2020-01-21 |
Family
ID=69256416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920426859.7U Expired - Fee Related CN209974425U (en) | 2019-03-29 | 2019-03-29 | Automatic phosphate adding device for thermal power station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209974425U (en) |
-
2019
- 2019-03-29 CN CN201920426859.7U patent/CN209974425U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200121 Termination date: 20210329 |
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| CF01 | Termination of patent right due to non-payment of annual fee |