CN216642473U - A system of preventing frostbite in winter of reserve pump for outdoor transport easily freeze medium - Google Patents
A system of preventing frostbite in winter of reserve pump for outdoor transport easily freeze medium Download PDFInfo
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- CN216642473U CN216642473U CN202220096959.XU CN202220096959U CN216642473U CN 216642473 U CN216642473 U CN 216642473U CN 202220096959 U CN202220096959 U CN 202220096959U CN 216642473 U CN216642473 U CN 216642473U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
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Abstract
The utility model discloses a winter anti-freezing system for a standby pump for outdoor conveying of an easily-frozen medium, and belongs to the field of anti-freezing of the easily-frozen medium standby pump. Comprises a pump, a pump inlet pipeline and a pump outlet pipeline which are connected with the pump; a pump inlet pressure gauge, a pump inlet low-point discharge valve, a filter and a pump inlet valve are sequentially arranged on the pump inlet pipeline from one side of the pump; the system also comprises a standby pump anti-freezing pipeline, wherein one end of the standby pump anti-freezing pipeline is connected to a pipeline between the check valve and the pump outlet valve, and the other end of the standby pump anti-freezing pipeline is connected to a pipeline between the pump outlet pressure gauge and a root valve of the pump outlet pressure gauge; and a valve is arranged on the anti-freezing pipeline of the standby pump. The utility model can effectively solve the problem of the anti-freezing work of the standby pump for outdoor delivery media such as water and other easily-frozen media.
Description
Technical Field
The utility model relates to a winter anti-freezing system for a standby pump for outdoor conveying of an easily-frozen medium, and belongs to the field of anti-freezing of the easily-frozen medium standby pump.
Background
According to the selection of chemical production process flow, pumps which are easy to freeze media when the environmental temperature is lower than 0 ℃ such as water delivery, waste water containing trace methanol, steam condensate and the like are frequently arranged, and two pumps are usually arranged for ensuring the continuous operation of the device and one application, wherein one pump is operated and the other pump is reserved. After entering winter, along with the reduction of ambient temperature, because of the stand-by pump does not operate, medium is static state in pipeline and the pump case, and the problem that the medium freezes stifled very easily takes place to freeze when ambient temperature is less than 0 ℃ in pipeline and the pump case, in case the stand-by pump takes place to freeze and congeals stifled, can cause the mechanical parts damage of pump, the pump can not normally work when needing to start the stand-by pump, seriously influences chemical production safety, has very big potential safety hazard. Generally, in winter, heat tracing and heat preservation methods are adopted to protect the inlet and outlet pipelines of the pump, but the heat tracing protection cannot be added to the pump shell due to irregular overall dimension and unequal volume of the pump, and meanwhile, the pump needs to be periodically disassembled and inspected, even after the heat tracing pipelines are added, the pump disassembly and inspection space is occupied, and inconvenience is brought to the pump disassembly and inspection work. The other antifreezing method is to open the drain field discharge of the pump to ensure the medium flow in the inlet and outlet pipelines and the pump shell of the pump to prevent freezing, but the field discharge can cause energy waste, and the direct field discharge of some harmful media with peculiar smell can affect the working living environment, so the antifreezing method is a measure which is waste and not environment-friendly.
SUMMERY OF THE UTILITY MODEL
The utility model aims to effectively solve the problem of preventing freezing in winter of a standby pump of which the outdoor conveying medium of each chemical device (under construction or operated device) is water and other easily-frozen media. The utility model is characterized in that a pipeline is newly arranged at the low-point on-site discharge flow guide position of a pipeline between an upper check valve and an outlet valve of an outlet pipeline of a pump, a small-flow pore plate is arranged on the on-site discharge flow guide valve and then led to the root pipeline of a pressure gauge at the outlet of the pump, a valve is arranged at the position close to the root pipeline of the pressure gauge, a discharge valve is arranged at the low point of the rear pipeline, and a discharge valve is arranged at the high point. The pipeline is arranged for anti-freezing after the pipeline is used in winter.
A standby pump winter anti-freezing system for outdoor conveying of a freezing-prone medium comprises a pump, a pump inlet pipeline and a pump outlet pipeline, wherein the pump inlet pipeline and the pump outlet pipeline are connected with the pump; a filter and a pump inlet valve are sequentially arranged on the pump inlet pipeline from one side of the pump, and a pipeline is branched from the pipeline between the filter and the pump and is sequentially connected with a root valve of a pump inlet pressure gauge and the pump inlet pressure gauge; the system also comprises a standby pump anti-freezing pipeline, wherein one end of the standby pump anti-freezing pipeline is connected to a pipeline between the check valve and the pump outlet valve, and the other end of the standby pump anti-freezing pipeline is connected to a pipeline between the pump outlet pressure gauge and the pump outlet pressure gauge root valve; the anti-freezing pipeline anti-freezing device is characterized in that a valve is arranged on the anti-freezing pipeline of the backup pump, a small-flow limiting hole plate, an anti-freezing pipeline valve, a pump outlet low-point discharge valve, an anti-freezing pipeline low-point discharge valve used for discharging liquid media in the anti-freezing pipeline of the backup pump, and an anti-freezing pipeline high-point discharge valve used for discharging gas media in the anti-freezing pipeline of the backup pump, sampling and checking whether the mechanical pump is frozen and blocked are arranged on the anti-freezing pipeline.
Furthermore, in the above technical scheme, a pipeline is branched downwards from the pump inlet pipeline between the filter and the pipeline provided with the pump inlet pressure gauge, and a pump inlet low-point discharge valve is arranged.
Furthermore, in the above technical scheme, an anti-freezing pipeline valve is arranged on the anti-freezing pipeline of the backup pump close to one side of the pressure gauge of the pump outlet, and an outlet low-point discharge valve is arranged on the anti-freezing pipeline of the backup pump close to one side of the outlet valve.
Further, in the above technical solution, in the horizontal direction, the pump outlet low point discharge valve is located below the pump outlet pipeline.
Further, in the above technical scheme, a pipeline is branched at a low point of the anti-freezing pipeline of the backup pump, and a low-point discharge valve of the anti-freezing pipeline is arranged.
Further, in the above technical scheme, a pipeline is branched at a high point of the anti-freezing pipeline of the backup pump, and a high point discharge valve of the anti-freezing pipeline is arranged.
Further, in the above technical solution, the pump inlet line, the pump and the pump outlet line are used for outdoor transportation of the refrigerant.
Further, among the above-mentioned technical scheme, the pipeline can be dismantled with pump outlet pipeline to the anti-freezing pipeline of reserve pump, the pipeline that pipeline and pump outlet manometer of reserve pump were located can be dismantled and be connected.
Further, in the above technical scheme, the spare pump anti-freezing pipeline and the pump outlet pipeline can be detached, and the pipeline can be detached except that the spare pump anti-freezing pipeline is not used in winter. The already running device can be implemented without stopping the operation.
Further, in the above technical solution, the small flow orifice plate is used to prevent the pump impeller from being reversed.
Beneficial effects of the utility model
After the temperature of the environment is reduced to below 0 ℃ in winter, the standby pump is opened, and the anti-freezing pipeline is newly arranged, so that the pump inlet and outlet pipeline and the medium in the pump circulate, and the anti-freezing work of the standby pump for outdoor conveying medium such as water and other easily-frozen media is effectively solved. The system of the utility model is provided with the small-flow-limiting orifice plate which can ensure that the spare pump impeller does not turn over. The anti-freezing pipeline low-point discharge valve is arranged, so that the anti-freezing pipeline of the standby pump can be stopped from being used except for the standby pump needing to be prevented from freezing in winter, and the liquid medium in the pipeline is discharged through the anti-freezing pipeline low-point discharge valve. The anti-freezing pipeline high-point discharge valve is arranged, so that the anti-freezing pipeline of the standby pump can be stopped from being used except for the standby pump needing to be prevented from freezing in winter, and the gas medium in the pipeline is discharged through the anti-freezing pipeline high-point discharge valve. Because the anti-freezing pipeline of the standby pump is detachably connected, the pipeline can be detached or installed without stopping working after the medium is emptied. For the mixed liquid with the medium similar to methanol/water, the standby pump anti-freezing pipeline can be used as a sampling analysis pipeline, sampling analysis is carried out from a high-point discharge valve of the anti-freezing pipeline, and whether the pump and the pipeline are frozen and blocked can be checked by opening the high-point discharge valve.
Drawings
FIG. 1 is a schematic diagram of a backup pump winterization system for outdoor delivery of a freezable medium according to the present invention.
In the figure, 1, a pump inlet valve, 2, a filter, 3, a pump inlet low-point discharge valve, 4, a pump inlet pressure gauge root valve, 5, a pump inlet pressure gauge, 6, a pump, 7, a pump outlet pressure gauge root valve, 8, a pump outlet pressure gauge, 9, a check valve, 10, a pump outlet valve, 11, a pump outlet low-point discharge valve, 12, an anti-freezing pipeline low-point discharge valve, 13, an anti-freezing pipeline valve, 14, a standby pump anti-freezing pipeline, 15, a small flow limiting orifice plate, 16 and an anti-freezing pipeline high-point discharge valve.
Detailed Description
The following non-limiting examples will allow one of ordinary skill in the art to more fully understand the present invention, but are not intended to limit the utility model in any way.
Example 1
Backup pump freeze protection and daily use is further described below in conjunction with fig. 1 and the specific embodiment.
As shown in fig. 1, a backup pump winterizing system for outdoor transportation of a freezable medium includes a pump 6 and pump inlet and pump outlet lines connected to the pump 6; a filter 2 and a pump inlet valve 1 are sequentially arranged on the pump inlet pipeline from one side of the pump 6, and a pipeline is branched from the pipeline between the filter 2 and the pump 6 and is sequentially connected with a root valve 4 of a pump inlet pressure gauge and a pump inlet pressure gauge 5; the system comprises a pump, a pump outlet pipeline and a standby pump anti-freezing pipeline, wherein a check valve 9 and a pump outlet valve 10 are sequentially arranged on the pump outlet pipeline from the other side of the pump 6, a pipeline is branched from the pipeline between the pump 6 and the check valve 9 and is sequentially connected with a pump outlet pressure gauge root valve 7 and a pump outlet pressure gauge 8, one end of the standby pump anti-freezing pipeline 14 is connected to the pipeline between the check valve 9 and the pump outlet valve 10, and the other end of the standby pump anti-freezing pipeline is connected to the pipeline between the pump outlet pressure gauge 8 and the pump outlet pressure gauge root valve 7; and an anti-freezing pipeline valve 13, a pump outlet low-point discharge valve 11, a small flow orifice plate 15, an anti-freezing pipeline low-point discharge valve 12 for discharging liquid media in the anti-freezing pipeline 14 of the standby pump, and an anti-freezing pipeline high-point discharge valve 16 for discharging gas media in the anti-freezing pipeline 14 of the standby pump and sampling and checking whether the pump is frozen and blocked are arranged on the anti-freezing pipeline 14 of the standby pump.
A pipeline is branched downwards from a pump inlet pipeline between the filter 2 and the pipeline provided with the pump inlet pressure gauge 5, and a pump inlet low-point discharge valve 3 is arranged.
An anti-freezing pipeline valve 13 is arranged on the anti-freezing pipeline 14 of the standby pump close to one side of the pump outlet pressure gauge 8, and a pump outlet low-point discharge valve 11 is arranged on the anti-freezing pipeline 14 of the standby pump close to one side of the pump outlet valve 10.
The pump outlet low point discharge valve 11 is located below the pump outlet line in the horizontal direction.
The low point of the backup pump antifreeze pipeline 14 is also branched to form a pipeline and is provided with an antifreeze pipeline low point discharge valve 12.
The high point of the backup pump antifreeze line 14 is also branched off and provided with an antifreeze line high point discharge valve 16.
The pump inlet line, the pump 6 and the pump outlet line are used for outdoor transport of the freezable medium.
The anti-freezing pipeline 14 of the backup pump is detachably connected with the pump outlet pipeline, and the anti-freezing pipeline 14 of the backup pump is detachably connected with the pipeline where the pump outlet pressure gauge 8 is located.
The orifice plate 15 serves to prevent the pump 6 impeller from backing up.
Example 2
Description of the use of the backup pump winterizing system for outdoor delivery of freezable media described in example 1:
1. winter anti-freezing use of standby pump
When a standby pump (namely the pump 6 in the embodiment) is in standby, the inlet valve 1 of the pump is kept open, the low-point discharge valve 3 of the pump inlet is closed, the root valve 4 of the pressure gauge of the pump inlet is opened, the pressure gauge 5 of the pump inlet indicates normal, the root valve 7 of the pressure gauge of the pump outlet is opened, the pressure gauge 8 of the pump outlet indicates normal, a standby pump antifreezing pipeline 14 is put into use in winter, the low-point discharge valve 11 of the pump outlet is opened, the low-point discharge valve 12 of the antifreezing pipeline is closed, the valve 13 of the antifreezing pipeline is opened, the valve 10 of the pump outlet is opened to 2-3 buckles, thus, the pump outlet medium passes through the standby pump anti-freezing pipeline 14 and returns to the pump 6 through the pipeline where the pump outlet pressure gauge is located, the process is carried out under the condition that the pump 6 is not started, because pump outlet pressure is higher than pump inlet pressure, liquid can circulate to guaranteed that pump business turn over pipeline and pump case internal medium circulate throughout, the effectual frost-proof problem that has solved in winter.
2. Operation of the back-up pump when it needs to be started
When the standby pump needs to be started, the standby pump anti-freezing pipeline 14 is stopped, the pump outlet valve 10 is closed firstly, the pump outlet low-point discharge valve 11 is closed, the anti-freezing pipeline high-point discharge valve 16 is opened firstly to exhaust the pump and the pipeline high point, the high-point discharge valve 16 is closed after the exhaust is finished, the anti-freezing pipeline valve 13 is closed, the standby pump is started, and the standby pump outlet valve 10 is opened after the pressure of the outlet pressure gauge 8 indicates normal operation, so that the standby pump works normally. And then, performing anti-freezing work on the anti-freezing pipeline, opening the high-point discharge valve 16 and the low-point discharge valve 12 of the anti-freezing pipeline to discharge residual media in the pipeline, and then closing the pipeline, wherein when the anti-freezing pipeline 14 is not needed to be used, the anti-freezing pipeline 14, the high-point discharge valve 16, the low-point discharge valve 12 and the small-flow restricted orifice plate 15 can be dismantled and installed again when the anti-freezing pipeline 14 is needed to be used. The normal work of the pump is not influenced in the process of installation and disassembly.
3. Arrangement of anti-freezing pipeline
The arrangement of the anti-freezing pipeline 14 of the backup pump can be used for construction during the normal operation of the device, the device does not need to be shut down, and meanwhile, the device can be prefabricated at a fixed fire point only after field measurement, so that the risk of field fire operation is avoided. The pipeline distance between pump outlet low point discharge valve 11 to pump outlet pressure gauge root valve 7 and pump outlet pressure gauge 8 is measured on site, pump outlet pressure gauge root valve 7 is closed, pump outlet pressure gauge 8 is stopped, the pipeline between pump outlet pressure gauge root valve 7 and pump outlet pressure gauge 8 is detached, the valve is taken back to the fixed moving fire point, the prefabrication construction is carried out according to the previous measurement distance, and the site direct installation is carried out after the construction is completed.
Claims (9)
1. A backup pump winter freeze protection system for outdoor transportation of a freezable medium, comprising a pump (6) and a pump inlet line and a pump outlet line connected to the pump (6); a filter (2) and a pump inlet valve (1) are sequentially arranged on the pump inlet pipeline from one side of the pump (6), and a pipeline is branched from the pipeline between the filter (2) and the pump (6) and is sequentially connected with a pump inlet pressure gauge root valve (4) and a pump inlet pressure gauge (5); a check valve (9) and a pump outlet valve (10) are sequentially arranged on the pump outlet pipeline from the other side of the pump (6), a pipeline is branched from the pipeline between the pump (6) and the check valve (9) and is sequentially connected with a pump outlet pressure gauge root valve (7) and a pump outlet pressure gauge (8), the system further comprises a standby pump anti-freezing pipeline (14), one end of the standby pump anti-freezing pipeline (14) is connected to the pipeline between the check valve (9) and the pump outlet valve (10), and the other end of the standby pump anti-freezing pipeline is connected to the pipeline between the pump outlet pressure gauge (8) and the pump outlet pressure gauge root valve (7); the anti-freezing pump is characterized in that an anti-freezing pipeline valve (13), a pump outlet low-point discharge valve (11), a small flow pore plate (15), an anti-freezing pipeline low-point discharge valve (12) for discharging liquid media in the anti-freezing pipeline (14) of the backup pump, an anti-freezing pipeline high-point discharge valve (16) for discharging gas media in the anti-freezing pipeline (14) of the backup pump, sampling and checking whether the pump is frozen and blocked are arranged on the anti-freezing pipeline (14) of the backup pump.
2. Backup pump winterizing system according to claim 1, ch aracterized in that the pump inlet line between the filter (2) and the line provided with the pump inlet pressure gauge (5) branches off one line downwards and is provided with a pump inlet low point discharge valve (3).
3. Backup pump winterization system according to claim 1, characterized in that the backup pump antifreeze line (14) near the pump outlet pressure gauge (8) side is provided with an antifreeze line valve (13) and the backup pump antifreeze line (14) near the pump outlet valve (10) side is provided with a pump outlet low point drain valve (11).
4. Backup pump winterization system according to claim 1, characterized in that the pump outlet low point discharge valve (11) is located below the pump outlet line in the horizontal direction.
5. Backup pump winterization system according to claim 3, characterized in that the backup pump winterization line (14) branches off at the low point and is provided with a frost line low point discharge valve (12).
6. Backup pump winterization system according to claim 3, characterized in that the backup pump winterization line (14) also branches off at the high point and is provided with a frost line high point discharge valve (16).
7. Backup pump winterization system according to claim 1, characterized in that the pump inlet line, the pump (6) and the pump outlet line are used for outdoor transport of the freezing prone medium.
8. Backup pump winterization system according to claim 1, ch aracterized in that the backup pump antifreeze line (14) is detachably connected with the pump outlet line, the backup pump antifreeze line (14) being detachably connected with the line where the pump outlet pressure gauge (8) is located.
9. Backup pump winterization system according to claim 1, characterized in that the small flow orifice (15) is used to prevent the pump (6) impeller from turning upside down.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220096959.XU CN216642473U (en) | 2022-01-14 | 2022-01-14 | A system of preventing frostbite in winter of reserve pump for outdoor transport easily freeze medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220096959.XU CN216642473U (en) | 2022-01-14 | 2022-01-14 | A system of preventing frostbite in winter of reserve pump for outdoor transport easily freeze medium |
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| Publication Number | Publication Date |
|---|---|
| CN216642473U true CN216642473U (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220096959.XU Active CN216642473U (en) | 2022-01-14 | 2022-01-14 | A system of preventing frostbite in winter of reserve pump for outdoor transport easily freeze medium |
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| CN (1) | CN216642473U (en) |
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2022
- 2022-01-14 CN CN202220096959.XU patent/CN216642473U/en active Active
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