CN220452148U - Low-pressure heat exchange circulating liquid circulation system - Google Patents
Low-pressure heat exchange circulating liquid circulation system Download PDFInfo
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- CN220452148U CN220452148U CN202322101976.5U CN202322101976U CN220452148U CN 220452148 U CN220452148 U CN 220452148U CN 202322101976 U CN202322101976 U CN 202322101976U CN 220452148 U CN220452148 U CN 220452148U
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- 239000007788 liquid Substances 0.000 title claims abstract description 135
- 239000012530 fluid Substances 0.000 claims description 11
- 239000002608 ionic liquid Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to the technical field of circulating liquid seal compressors, in particular to a low-pressure heat exchange circulating liquid circulating system. The circulating pump comprises a circulating cavity, wherein a liquid inlet of the circulating cavity is connected with a liquid outlet of the circulating pump through a liquid inlet pipeline, a liquid inlet of the circulating pump is connected with a hydraulic cavity through a liquid inlet pipeline, the hydraulic cavity is connected with a heat exchanger and a hydraulic pump through a low-pressure pipeline, and the hydraulic pump is connected with a circulating liquid tank through a liquid adding pipeline; the liquid outlet of the circulation cavity is connected with the circulation liquid tank through a liquid outlet pipeline, the hydraulic cavity is used for storing the circulation liquid, the circulation liquid is supplied to the circulation cavity after the pressure of the circulation liquid is lifted, and the circulation liquid pressure in the low-pressure pipeline is lower than that in the circulation cavity. The heat exchanger can be operated in a low-pressure circulating liquid state, the common heat exchanger can also meet the pressure requirement, and the pressure and other parameter requirements of the heat exchanger are greatly reduced, so that the equipment operation cost is reduced.
Description
Technical field:
the utility model relates to the technical field of circulating liquid seal compressors, in particular to a low-pressure heat exchange circulating liquid circulating system.
The background technology is as follows:
the circulating liquid seal compressor drives a piston in a cylinder body of the cylinder to reciprocate mainly through a driving mechanism so as to realize supercharging of gas. As disclosed in the patent application publication No. CN114439728A, a circulating liquid seal compressor is disclosed, which is configured to store a circulating liquid by providing an annular chamber between a piston and a cylinder block, to lubricate, cool and seal the circulating liquid by the circulating liquid, and in a circulating liquid circuit, the circulating liquid is kept to circulate continuously by providing a circulating pump, and at the same time, a liquid cooler is also provided to cool the circulating liquid. When the circulating liquid circulation device works, the pressure of circulating liquid in the annular cavity is required to be larger than the pressure of compressed gas so as to avoid outward leakage of the gas through circulating liquid, and the pressure of the compressed gas is generally 45-50MPa, so that in the current circulating liquid loop, the liquid cooler can only be maintained to operate in a high-pressure circulating liquid state, the common liquid cooler is difficult to meet the high-pressure requirement, the pressure and other parameter requirements of the liquid cooler are greatly improved, and the running cost of equipment is definitely increased.
In summary, the cooling problem of the circulating liquid in the circulating liquid seal compressor has become a technical problem to be solved in industry.
The utility model comprises the following steps:
the utility model provides a low-pressure heat exchange circulating liquid circulating system for overcoming the defects of the prior art, and solves the problem that the cost is increased when a liquid cooler in a conventional circulating loop is maintained in a high-pressure circulating liquid state.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
the low-pressure heat exchange circulating liquid circulating system comprises a circulating cavity, wherein a liquid inlet of the circulating cavity is connected with a liquid outlet of a circulating pump through a liquid inlet pipeline, a liquid inlet of the circulating pump is connected with a hydraulic cavity through a liquid inlet pipeline, the hydraulic cavity is connected with a heat exchanger and a hydraulic pump through a low-pressure pipeline, and the hydraulic pump is connected with a circulating liquid tank through a liquid adding pipeline; the liquid outlet of the circulation cavity is connected with the circulation liquid tank through a liquid outlet pipeline, the hydraulic cavity is used for storing the circulation liquid, the circulation liquid is supplied to the circulation cavity after the pressure of the circulation liquid is lifted, and the circulation liquid pressure in the low-pressure pipeline is lower than that in the circulation cavity.
And the liquid inlet and the liquid outlet of the circulating cavity are respectively provided with a one-way valve.
The liquid outlet pipeline is provided with a first pressure sensor, a first pressure gauge and a first overflow valve.
The first overflow valve is connected with the circulating liquid tank through a first overflow pipeline.
The circulating pump adopts a quantitative plunger pump.
And the hydraulic cavity is provided with a second pressure sensor, a second pressure gauge and a second overflow valve.
The second overflow valve is connected with the circulating liquid tank through a second overflow pipeline.
The front side of the hydraulic cavity is provided with a first filter.
The front side of the hydraulic pump is provided with a second filter.
And a temperature measuring sensor is arranged in the circulating liquid tank.
The utility model adopts the scheme and has the following advantages:
through setting up hydraulic pressure chamber and hydraulic pump in the circulation loop, pump the circulation liquid into the hydraulic pressure chamber through the hydraulic pump and store and promote the pressure of circulation liquid earlier, then supply the circulation liquid to the circulation chamber through the circulation pump, can make the circulation hydraulic pressure in the low pressure pipeline be less than the circulation hydraulic pressure in the circulation chamber like this, make the heat exchanger can be operated under low pressure circulation liquid state, ordinary heat exchanger also can satisfy the pressure requirement, the pressure isoparametric requirement greatly reduced to the heat exchanger to equipment running cost has been reduced.
Description of the drawings:
fig. 1 is a schematic diagram of the structural principle of the present utility model.
In the figure, 1, a circulation cavity, 2, a liquid inlet pipeline, 3, a circulation pump, 4, a hydraulic cavity, 5, a low-pressure pipeline, 6, a heat exchanger, 7, a hydraulic pump, 8, a liquid adding pipeline, 9, a circulation liquid tank, 10, a liquid outlet pipeline, 11, a one-way valve, 12, a first pressure sensor, 13, a first pressure gauge, 14, a first overflow valve, 15, a first overflow pipeline, 16, a second pressure sensor, 17, a second pressure gauge, 18, a second overflow valve, 19, a second overflow pipeline, 20, a first filter, 21, a second filter, 22 and a temperature sensor.
The specific embodiment is as follows:
in order to clearly illustrate the technical features of the present solution, the present utility model will be described in detail below with reference to the following detailed description and the accompanying drawings.
As shown in fig. 1, the low-pressure heat exchange circulating liquid circulating system comprises a circulating cavity 1, wherein a liquid inlet of the circulating cavity 1 is connected with a liquid outlet of a circulating pump 3 through a liquid inlet pipeline 2, a liquid inlet of the circulating pump 3 is connected with a hydraulic cavity 4 through a liquid inlet pipeline, the hydraulic cavity 4 is connected with a heat exchanger 6 and a hydraulic pump 7 through a low-pressure pipeline 5, the heat exchanger 6 is used for keeping the constant temperature of circulating liquid, and the hydraulic pump 7 is connected with a circulating liquid tank 9 through a liquid adding pipeline 8; the liquid outlet of the circulation cavity 1 is connected with the circulation liquid tank 9 through a liquid outlet pipeline 10 to form a circulation loop, the hydraulic cavity 4 is used for storing circulation liquid, lifting the pressure of the circulation liquid and then supplying the circulation liquid to the circulation cavity 1, and the circulation liquid pressure in the low-pressure pipeline 5 is lower than that in the circulation cavity 1.
The liquid inlet and the liquid outlet of the circulating cavity 1 are respectively provided with a one-way valve 11.
The liquid outlet pipeline 10 is provided with a first pressure sensor 12, a first pressure gauge 13 and a first overflow valve 14. The first pressure sensor 12 can detect the circulating hydraulic pressure in the liquid outlet pipeline 10 and display the circulating hydraulic pressure through the first pressure gauge 13, when the circulating hydraulic pressure is too large, the circulating hydraulic pressure can overflow through the first overflow valve 14, so that overpressure protection is realized, the first overflow valve 14 is connected with the circulating liquid tank 9 through the first overflow pipeline 16, and the overflowed circulating liquid can be returned to the circulating liquid tank 9 for reuse.
The circulating pump 3 adopts a quantitative plunger pump. The sealing grade of the quantitative plunger pump is high, the pressure parameter of more than 45-50MPa can be achieved, and the circulating liquid is easy to keep in a high-pressure state for circulation.
The hydraulic cavity 4 is provided with a second pressure sensor 16, a second pressure gauge 17 and a second overflow valve 18. The second pressure sensor 16 can detect the circulating hydraulic pressure in the hydraulic cavity 4 and display the circulating hydraulic pressure through the second pressure gauge 17, when the circulating hydraulic pressure is too large, the circulating hydraulic pressure can overflow through the second overflow valve 18, so that overpressure protection is realized, and the second overflow valve 18 is connected with the circulating liquid tank 9 through the second overflow pipeline 19, so that the overflowed circulating liquid can be returned to the circulating liquid tank 9 for reuse.
The front side of the hydraulic chamber 4 is provided with a first filter 20 for filtering the circulating fluid entering the hydraulic chamber 4.
The front side of the hydraulic pump 7 is provided with a second filter 21 for filtering the circulating fluid entering the hydraulic pump 7.
A temperature sensor 22 is arranged in the circulating liquid tank 9 and is used for detecting the temperature of the circulating liquid in the circulating liquid tank 9.
The circulating liquid in the circulating cavity 1 comprises lubricating oil, water or ionic liquid and other liquids. Preferably, the ionic liquid is adopted in the method, and has the advantages of no pollution, easy separation from products, easy recovery and repeated recycling, and even if leakage occurs, the ionic liquid cannot pollute the gas.
Working principle:
during operation, circulating liquid in the circulating liquid tank 9 firstly enters the hydraulic pump 7 through the liquid adding pipeline 8, then enters the hydraulic cavity 4 through the heat exchanger 6 and the low-pressure pipeline 5 for storage and the pressure of the circulating liquid is improved, after the circulating liquid pressure in the hydraulic cavity 4 reaches the set pressure, the circulating liquid in the hydraulic cavity 4 enters the circulating pump 3 through the liquid inlet pipeline 2, is pumped into the circulating cavity 1 after being pressurized through the circulating pump 3, achieves the effects of lubrication, cooling and sealing in the circulating cavity 1, and finally returns to the circulating liquid tank 9 through the liquid outlet pipeline 10 to form a new circulating loop. In the whole circulation loop, the circulation hydraulic pressure in the front and rear pipelines of the hydraulic cavity 4 is different, the circulation hydraulic pressure in the low-pressure pipeline 5 is lower than the circulation hydraulic pressure in the circulation cavity 1, so that the heat exchanger 6 can be maintained to operate in a low-pressure circulation liquid state, the common heat exchanger 6 can also meet the pressure requirement, the pressure and other parameter requirements of the heat exchanger 6 are greatly reduced, and the equipment operation cost is reduced.
The above embodiments are not to be taken as limiting the scope of the utility model, and any alternatives or modifications to the embodiments of the utility model will be apparent to those skilled in the art and fall within the scope of the utility model.
The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Claims (10)
1. A low-pressure heat exchange circulating liquid circulating system is characterized in that: the circulating pump comprises a circulating cavity, wherein a liquid inlet of the circulating cavity is connected with a liquid outlet of the circulating pump through a liquid inlet pipeline, a liquid inlet of the circulating pump is connected with a hydraulic cavity through a liquid inlet pipeline, the hydraulic cavity is connected with a heat exchanger and a hydraulic pump through a low-pressure pipeline, and the hydraulic pump is connected with a circulating liquid tank through a liquid adding pipeline; the liquid outlet of the circulation cavity is connected with the circulation liquid tank through a liquid outlet pipeline, the hydraulic cavity is used for storing the circulation liquid, the circulation liquid is supplied to the circulation cavity after the pressure of the circulation liquid is lifted, and the circulation liquid pressure in the low-pressure pipeline is lower than that in the circulation cavity.
2. The low pressure heat exchange circulating fluid circulation system of claim 1, wherein: and the liquid inlet and the liquid outlet of the circulating cavity are respectively provided with a one-way valve.
3. The low pressure heat exchange circulating fluid circulation system of claim 1, wherein: the liquid outlet pipeline is provided with a first pressure sensor, a first pressure gauge and a first overflow valve.
4. A low pressure heat exchange circulating fluid circulation system according to claim 3, wherein: the first overflow valve is connected with the circulating liquid tank through a first overflow pipeline.
5. The low pressure heat exchange circulating fluid circulation system of claim 1, wherein: the circulating pump adopts a quantitative plunger pump.
6. The low pressure heat exchange circulating fluid circulation system of claim 1, wherein: and the hydraulic cavity is provided with a second pressure sensor, a second pressure gauge and a second overflow valve.
7. The low pressure heat exchange circulating fluid circulation system of claim 6, wherein: the second overflow valve is connected with the circulating liquid tank through a second overflow pipeline.
8. The low pressure heat exchange circulating fluid circulation system of claim 1, wherein: the front side of the hydraulic cavity is provided with a first filter.
9. The low pressure heat exchange circulating fluid circulation system of claim 1, wherein: the front side of the hydraulic pump is provided with a second filter.
10. The low pressure heat exchange circulating fluid circulation system of claim 1, wherein: and a temperature measuring sensor is arranged in the circulating liquid tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322101976.5U CN220452148U (en) | 2023-08-07 | 2023-08-07 | Low-pressure heat exchange circulating liquid circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322101976.5U CN220452148U (en) | 2023-08-07 | 2023-08-07 | Low-pressure heat exchange circulating liquid circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220452148U true CN220452148U (en) | 2024-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322101976.5U Active CN220452148U (en) | 2023-08-07 | 2023-08-07 | Low-pressure heat exchange circulating liquid circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220452148U (en) |
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2023
- 2023-08-07 CN CN202322101976.5U patent/CN220452148U/en active Active
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