CN212299516U - Material returning system applied to refrigerating system - Google Patents
Material returning system applied to refrigerating system Download PDFInfo
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- CN212299516U CN212299516U CN202021847709.2U CN202021847709U CN212299516U CN 212299516 U CN212299516 U CN 212299516U CN 202021847709 U CN202021847709 U CN 202021847709U CN 212299516 U CN212299516 U CN 212299516U
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Abstract
The utility model relates to a refrigerating system technical field discloses a material returned system for refrigerating system, include: the system comprises a nitrogen pipeline, wherein nitrogen is filled into the nitrogen pipeline, the nitrogen pipeline is respectively connected with the flash tank and the upper end of an intermediate storage tank, the flash tank is connected with the intermediate storage tank through a first pipeline, the intermediate storage tank is connected with a waste liquid disposal boundary region through a second pipeline, residual liquid of cooling medium in the flash tank is returned to the intermediate storage tank through the first pipeline by filling nitrogen into the flash tank, and the cooling medium in the intermediate storage tank is returned to the waste liquid disposal boundary region through the second pipeline by using nitrogen. The utility model discloses a move back the cooling medium pipeline and can move back cooling medium liquid in the system to the waste liquid completely and handle the boundary region, filled the interior not thorough blank of cooling medium that moves back of trade, for overhauing safety and providing the guarantee, greatly reduced maintenance time simultaneously to at least one set of cooling medium delivery pump and operation maintenance cost have been saved.
Description
Technical Field
The utility model relates to a refrigerating system technical field, in particular to are applied to refrigerating system's material returned system.
Background
At present, the compressor refrigerating system generally adopts the special coolant delivery pump that sets up to move back to the waste liquid and handles the boundary region with the in-system cooling liquid in moving back the coolant liquid operation, nevertheless because the coolant liquid is mostly volatile medium, the cavitation that can lead to the pump is crossed low to delivery pump entry storage tank liquid level, so can't thoroughly withdraw from the system with the coolant liquid with the delivery pump, be unfavorable for the system replacement, greatly prolonged the repair time, simultaneously, also bring the potential safety hazard for the system.
SUMMERY OF THE UTILITY MODEL
The utility model provides a be applied to refrigerating system's material returned system can move back systematic internal cooling medium liquid completely to the waste liquid and deal with the boundary district, has greatly reduced maintenance duration to one set at least cooling medium delivery pump and operation maintenance cost have been saved.
The utility model provides a be applied to refrigerating system's material returned system, include:
the waste liquid treatment system comprises a waste liquid treatment interface area, a nitrogen pipeline, a flash tank and a waste liquid treatment interface area, wherein the waste liquid treatment interface area is connected with the waste liquid treatment interface area through a first pipeline;
and (3) filling nitrogen into the flash tank, returning the residual liquid of the cooling medium in the flash tank to the intermediate storage tank through the first pipeline, and similarly, returning the cooling medium in the intermediate storage tank to the waste liquid disposal boundary area through the second pipeline by using the nitrogen.
Optionally, the pressure in the nitrogen line is higher than the pressure in the flash tank and the intermediate storage tank.
Optionally, the head end of the nitrogen pipeline is sequentially provided with a first cut-off valve, a first pilot valve, a blind plate, a second cut-off valve, a first pressure gauge, a third cut-off valve, a second pilot valve, a pressure reducing valve, a fourth cut-off valve, a second pressure gauge and a safety valve, and the positions before the nitrogen pipeline is connected into the flash tank and the intermediate storage tank are respectively sequentially provided with a fifth cut-off valve, a third pilot valve, a check valve and a sixth cut-off valve.
Optionally, the cooling medium is propylene or liquid ammonia.
Compared with the prior art, the beneficial effects of the utility model reside in that: the utility model discloses a move back the cooling medium pipeline and can move back cooling medium liquid in the system to the waste liquid completely and handle the boundary region, filled the interior not thorough blank of cooling medium that moves back of trade, for overhauing safety and providing the guarantee, greatly reduced maintenance time simultaneously to at least one set of cooling medium delivery pump and operation maintenance cost have been saved.
Drawings
Fig. 1 is a schematic structural diagram of a material returning system applied to a refrigeration system according to an embodiment of the present invention.
Description of reference numerals:
1-nitrogen pipeline, 2-flash tank, 3-intermediate storage tank, 4-first pipeline, 5-second pipeline, 6-blind plate, 7-stop valve, 8-first pressure gauge, 9-second pressure gauge, 10-pilot valve, 11-pressure reducing valve, 12-safety valve, 13-check valve, 14-second stop valve, 15-third stop valve, 16-second pilot valve, 17-fourth stop valve, 18-fifth stop valve, 19-third pilot valve and 20-sixth stop valve.
Detailed Description
In the following, an embodiment of the present invention will be described in detail with reference to the drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.
As shown in fig. 1, the embodiment of the utility model provides a be applied to refrigerating system's material returned system includes: the device comprises a nitrogen pipeline 1, wherein nitrogen is filled into the nitrogen pipeline 1, the nitrogen pipeline 1 is respectively connected with the flash tank 2 and the upper end of an intermediate storage tank 3, the flash tank 2 is connected with the intermediate storage tank 3 through a first pipeline 4, the intermediate storage tank 3 is connected with a waste liquid disposal boundary zone through a second pipeline 5, residual liquid of cooling media in the flash tank 2 is returned to the intermediate storage tank 3 through the first pipeline 4 by filling the nitrogen into the flash tank 2, and similarly, the cooling media in the intermediate storage tank 3 is returned to the waste liquid disposal boundary zone through the second pipeline 5 by using the nitrogen.
Optionally, the pressure in the nitrogen pipeline 1 is higher than the pressure in the flash tank 2 and the intermediate storage tank 3, and is lower than the design pressure of the flash tank 2, the intermediate storage tank 3 and the connecting pipeline.
Optionally, the head end of the nitrogen pipeline 1 is sequentially provided with a first cut-off valve 7, a first pilot valve 10, a blind plate 6, a second cut-off valve 14, a first pressure gauge 8, a third cut-off valve 15, a second pilot valve 16, a pressure reducing valve 11, a fourth cut-off valve 17, a second pressure gauge 9 and a safety valve 12, and the positions before the nitrogen pipeline 1 is connected to the flash tank 2 and the intermediate storage tank 3 are respectively sequentially provided with a fifth cut-off valve 18, a third pilot valve 19, a check valve 13 and a sixth cut-off valve 20.
In the prior art, a valve bank is arranged on a first pipeline 4 between a flash tank 2 and an intermediate storage tank 3, a regulating valve is arranged between a front stop valve and a rear stop valve, and a bypass valve and a valve-front pilot shower are arranged.
The effect of blind plate 6 is normal for producing the operation, when need not to move back cooling medium, can prevent that the medium from scurrying each other, thoroughly keep apart with blind plate 6, the trip valve is used for the medium to keep apart, first manometer 8 is used for detecting nitrogen gas pipeline 1's pressure, prevent the cooling medium refluence, second manometer 9 is used for detecting relief pressure valve 11's decompression effect, ensure that the pressure energy behind relief pressure valve 11 can reach normal operating pressure, prevent cooling medium refluence or pipeline superpressure, the pilot valve is used for the pressure release or the row of each pipeline clean, relief pressure valve 11 is used for decompressing the higher nitrogen gas of pressure to required pressure, relief valve 12 is used for preventing 11 back pipeline superpressures that become invalid of relief pressure valve, the utility model discloses the system adopts blind plate 6 to keep apart and bivalve to add the form that leads to drench and keeps apart. The double valve adds and leads drenching, for preventing the medium from scurrying each other, sets up the two of different forms and cuts off the valve on the pipeline to add the pressure release in the middle of the valve and discharge and lead drenching.
Optionally, the cooling medium is propylene or liquid ammonia or one of other media with equivalent functions and properties.
The utility model discloses a move back the cooling medium pipeline and can move back cooling medium liquid in the system to the waste liquid completely and handle the boundary region, filled the interior not thorough blank of cooling medium that moves back of trade, for overhauing safety and providing the guarantee, greatly reduced maintenance time simultaneously to at least one set of cooling medium delivery pump and operation maintenance cost have been saved.
The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the embodiments, and any changes that can be considered by those skilled in the art shall fall within the protection scope of the present invention.
Claims (4)
1. Be applied to refrigerating system's material returned system, its characterized in that includes:
the device comprises a nitrogen pipeline (1), wherein nitrogen is filled into the nitrogen pipeline (1), the nitrogen pipeline (1) is respectively connected with the flash tank (2) and the upper end of an intermediate storage tank (3), the flash tank (2) is connected with the intermediate storage tank (3) through a first pipeline (4), and the intermediate storage tank (3) is connected with a waste liquid disposal boundary area through a second pipeline (5);
and nitrogen is filled into the flash tank (2), residual liquid of the cooling medium in the flash tank (2) is returned to the intermediate storage tank (3) through the first pipeline (4), and the cooling medium in the intermediate storage tank (3) is returned to the waste liquid disposal boundary area through the second pipeline (5) by using the nitrogen.
2. A return system for application in refrigeration systems according to claim 1, characterized in that the pressure in the nitrogen line (1) is higher than the pressure in the flash tank (2) and the intermediate storage tank (3).
3. The material returning system applied to the refrigerating system as set forth in claim 1, wherein a first cut-off valve (7), a first pilot valve (10), a blind plate (6), a second cut-off valve (14), a first pressure gauge (8), a third cut-off valve (15), a second pilot valve (16), a pressure reducing valve (11), a fourth cut-off valve (17), a second pressure gauge (9), and a safety valve (12) are sequentially disposed at a head end of the nitrogen pipeline (1), and a fifth cut-off valve (18), a third pilot valve (19), a check valve (13), and a sixth cut-off valve (20) are sequentially disposed at positions before the nitrogen pipeline (1) is connected to the flash tank (2) and the intermediate storage tank (3).
4. The material return system for a refrigeration system according to claim 1, wherein the cooling medium is propylene or liquid ammonia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021847709.2U CN212299516U (en) | 2020-08-28 | 2020-08-28 | Material returning system applied to refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021847709.2U CN212299516U (en) | 2020-08-28 | 2020-08-28 | Material returning system applied to refrigerating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212299516U true CN212299516U (en) | 2021-01-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021847709.2U Active CN212299516U (en) | 2020-08-28 | 2020-08-28 | Material returning system applied to refrigerating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212299516U (en) |
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2020
- 2020-08-28 CN CN202021847709.2U patent/CN212299516U/en active Active
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