CN103697327A - Zero-emission liquid adding system and zero-emission liquid adding method thereof - Google Patents
Zero-emission liquid adding system and zero-emission liquid adding method thereof Download PDFInfo
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- CN103697327A CN103697327A CN201310675721.8A CN201310675721A CN103697327A CN 103697327 A CN103697327 A CN 103697327A CN 201310675721 A CN201310675721 A CN 201310675721A CN 103697327 A CN103697327 A CN 103697327A
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Abstract
The invention discloses a zero-emission liquid adding system and a zero-emission liquid adding method thereof. The zero-emission liquid adding system comprises a storage tank, a heat exchanger, a cold source, a liquid storage device, a pump, a liquid outlet, a first valve, a second valve and a third valve, wherein the gas outlet of the storage tank, the first valve, the heat exchanger, the liquid storage device, the third valve, the pump and the liquid outlet are connected with one another in sequence; the liquid outlet of the storage tank is connected with the inlet of the pump by virtue of the second valve; the heat exchanger is connected with the cold source. The liquid adding system disclosed by the invention also comprises a pump basin, so that the pump is connected with the pump basin or the pump is arranged in the pump basin. The zero-emission liquid adding system is used for re-condensing evaporated gas produced by heat leakage of the storage tank and evaporated gas which flows into the storage tank from an external system in a using process, so that the environment problem caused by direct discharging of the evaporated gas and the waste of resources are avoided.
Description
Technical field
The present invention relates to fluid storage and transportation art, relate in particular to a kind of zero-emission liquid feeding system and method thereof.
Background technique
In chemical industry, liquid is generally stored in large-scale storage tank.Some liquid, because boiling point is lower, easily absorb the generation of the leakage thermal conductance induced evaporation gas of storage tank.In use, because circulation needs, boil-off gas also can flow in storage tank from external system.The accumulation of boil-off gas will cause tank internal pressure to rise, the withstand voltage formation test to storage tank.If storage tank by too high compression failure, will cause inner material to be directly discharged in environment, to environment, also cause direct economic loss simultaneously.Solve the original processing mode of boil-off gas problem for often at regular intervals boil-off gas initiatively being discharged to a part, although this scheme has guaranteed the safety of storage tank, but make material in storage tank have certain loss, and the discharge of boil-off gas also pollutes the environment, and produce noise in discharge process.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of zero-emission liquid feeding system and method thereof are provided.
A kind of zero-emission liquid feeding system comprises storage tank, heat exchanger, low-temperature receiver, liquid-storage container, pump, liquid outlet, the first valve, the second valve, the 3rd valve; Wherein storage tank gas outlet, the first valve, heat exchanger, liquid-storage container, the 3rd valve, pump, liquid outlet are connected in turn, and storage tank liquid outlet is connected with pump intake through the second valve, and heat exchanger is connected with low-temperature receiver.
A kind of zero-emission liquid feeding system comprises storage tank, heat exchanger, low-temperature receiver, liquid-storage container, pump, liquid outlet, the first valve, the second valve, the 3rd valve, pump pond; Wherein storage tank gas outlet, the first valve, heat exchanger, liquid-storage container, the 3rd valve, pump pond the first entrance, pump, liquid outlet are connected in turn, and storage tank liquid outlet is connected with pump pond the second entrance through the second valve, and heat exchanger is connected with low-temperature receiver.
A kind of zero-emission liquid feeding system comprises storage tank, heat exchanger, low-temperature receiver, liquid-storage container, pump, liquid outlet, the first valve, the second valve, the 3rd valve, pump pond; Wherein storage tank gas outlet, the first valve, heat exchanger, liquid-storage container, the 3rd valve, pump pond, the second valve, storage tank liquid outlet are connected in turn, and pump is placed in pump pond, and pump is connected with liquid outlet, and heat exchanger is connected with low-temperature receiver.
Described a kind of zero-emission liquid feeding system, the low-temperature receiver described in it is chiller plant or cold fluid.
Described a kind of zero-emission liquid feeding system, described in it, the pressure of the connection mouth of storage tank and the second valve is greater than the pressure of pump pond and the second valve connection mouth.
Described a kind of zero-emission liquid feeding system, described in it, the liquid level height of storage tank is higher than the entrance of pump.
A kind of step of zero-emission liquid feeding method is as follows:
1) the first valve, the 3rd valve is initially closed condition, and the second valve is initially opening state; Open the first valve, the gas in storage tank enters heat exchanger, after gas and low-temperature receiver heat exchange, is condensed into liquid, flows into liquid-storage container; In liquid-storage container, have after liquid, close the second valve, open the 3rd valve, the liquid in liquid-storage container flows out from the 3rd valve, then is delivered to liquid outlet by pump, realizes boil-off gas liquefaction;
2) the 3rd valve is initially closed condition, and the second valve is initially opening state; Liquid in storage tank flows out from the second valve, then is delivered to liquid outlet by pump.
A kind of step of zero-emission liquid feeding method is as follows:
1) the first valve, the 3rd valve is initially closed condition, and the second valve is initially opening state; Open the first valve, the gas in storage tank enters heat exchanger, after gas and low-temperature receiver heat exchange, is condensed into liquid, flows into liquid-storage container; In liquid-storage container, have after liquid, close the second valve, open the 3rd valve, the liquid in liquid-storage container is through the 3rd valve inflow pump pond, then is delivered to liquid outlet by pump, realizes boil-off gas liquefaction;
2) the 3rd valve is initially closed condition, and the second valve is initially opening state; Liquid in storage tank is through the second valve inflow pump pond, then is delivered to liquid outlet by pump.
The present invention is used for again condensation storage tank and from external system, flows into the boil-off gas in storage tank because leaking boil-off gas and the using process of heat generation, has avoided boil-off gas directly to discharge environmental problem and the wasting of resources causing.
Accompanying drawing explanation
Fig. 1 is zero-emission liquid feeding system schematic;
Fig. 2 is zero-emission liquid feeding system (pump pond is connected with pump) schematic diagram;
Fig. 3 is zero-emission liquid feeding system (pump is in pump pond) schematic diagram;
In figure, storage tank 1, heat exchanger 2, low-temperature receiver 3, liquid-storage container 4, pump 5, liquid outlet 6, the first valve 7.1, the second valve 7.2, the 3rd valve 7.3, pump pond 8.
Embodiment
As shown in Figure 1, zero-emission liquid feeding system comprises storage tank, heat exchanger, low-temperature receiver, liquid-storage container, pump, liquid outlet, the first valve, the second valve, the 3rd valve; Wherein storage tank gas outlet, the first valve, heat exchanger, liquid-storage container, the 3rd valve, pump, liquid outlet are connected in turn, and storage tank liquid outlet is connected with pump intake through the second valve, and heat exchanger is connected with low-temperature receiver.
As shown in Figure 2, zero-emission liquid feeding system comprises storage tank, heat exchanger, low-temperature receiver, liquid-storage container, pump, liquid outlet, the first valve, the second valve, the 3rd valve, pump pond; Wherein storage tank gas outlet, the first valve, heat exchanger, liquid-storage container, the 3rd valve, pump pond the first entrance, pump, liquid outlet are connected in turn, and storage tank liquid outlet is connected with pump pond the second entrance through the second valve, and heat exchanger is connected with low-temperature receiver.
As shown in Figure 3, zero-emission liquid feeding system comprises storage tank, heat exchanger, low-temperature receiver, liquid-storage container, pump, liquid outlet, the first valve, the second valve, the 3rd valve, pump pond; Wherein storage tank gas outlet, the first valve, heat exchanger, liquid-storage container, the 3rd valve, pump pond, the second valve, storage tank liquid outlet are connected in turn, and pump is placed in pump pond, and pump is connected with liquid outlet, and heat exchanger is connected with low-temperature receiver.
Described low-temperature receiver is chiller plant or cold fluid.The pressure of the connection mouth of described storage tank and the second valve is greater than the pressure of pump pond and the second valve connection mouth.The liquid level height of described storage tank is higher than the entrance of pump.
A kind of step of zero-emission liquid feeding method is as follows:
1) the first valve 7.1, the three valves 7.3 are initially closed condition, and the second valve 7.2 is initially opening state; Open the first valve 7.1, the gas in storage tank 1 enters heat exchanger 2, after gas and low-temperature receiver 3 heat exchange, is condensed into liquid, flows into liquid-storage container 4; In liquid-storage container 4, have after liquid, close the second valve 7.2, open the 3rd valve 7.3, the liquid in liquid-storage container 4 flows out from the 3rd valve 7.3, then is delivered to liquid outlet 6 by pump 5, realizes boil-off gas liquefaction;
2) the 3rd valve 7.3 is initially closed condition, and the second valve 7.2 is initially opening state; Liquid in storage tank 1 flows out from the second valve 7.2, then is delivered to liquid outlet 6 by pump 5.
A kind of step of zero-emission liquid feeding method is as follows:
1) the first valve 7.1, the three valves 7.3 are initially closed condition, and the second valve 7.2 is initially opening state; Open the first valve 7.1, the gas in storage tank 1 enters heat exchanger 2, after gas and low-temperature receiver 3 heat exchange, is condensed into liquid, flows into liquid-storage container 4; In liquid-storage container 4, have after liquid, close the second valve 7.2, open the 3rd valve 7.3, the liquid in liquid-storage container 4 is through the 3rd valve 7.3 inflow pump ponds 8, then is delivered to liquid outlet 6 by pump 5, realizes boil-off gas liquefaction;
2) the 3rd valve 7.3 is initially closed condition, and the second valve 7.2 is initially opening state; Liquid in storage tank 1 is through the second valve 7.2 inflow pump ponds 8, then is delivered to liquid outlet 6 by pump 5.
Working procedure of the present invention is as follows:
Boil-off gas in storage tank arrives heat exchanger by the first valve, with low-temperature receiver heat exchange, is condensed into liquid after transferring heat to low-temperature receiver.Liquid flows into liquid-storage container and stores.Liquid-storage container reaches after the liquid level of setting, flows out, and be delivered to liquid outlet by pump from the 3rd valve.Liquid in storage tank also can and be delivered to liquid outlet by pump by the second valve.Liquid, before entering pump, can be introduced into according to actual needs pump pond and store.
The present invention is used for again condensation storage tank and from external system, flows into the boil-off gas in storage tank because leaking boil-off gas and the using process of heat generation, has avoided boil-off gas directly to discharge environmental problem and the wasting of resources causing.
Claims (8)
1. a zero-emission liquid feeding system, is characterized in that comprising storage tank (1), heat exchanger (2), low-temperature receiver (3), liquid-storage container (4), pump (5), liquid outlet (6), the first valve (7.1), the second valve (7.2), the 3rd valve (7.3); Wherein storage tank (1) gas outlet, the first valve (7.1), heat exchanger (2), liquid-storage container (4), the 3rd valve (7.3), pump (5), liquid outlet (6) are connected in turn, storage tank (1) liquid outlet is connected with pump (5) entrance through the second valve (7.2), and heat exchanger (2) is connected with low-temperature receiver (3).
2. a zero-emission liquid feeding system, is characterized in that comprising storage tank (1), heat exchanger (2), low-temperature receiver (3), liquid-storage container (4), pump (5), liquid outlet (6), the first valve (7.1), the second valve (7.2), the 3rd valve (7.3), pump pond (8); Wherein storage tank (1) gas outlet, the first valve (7.1), heat exchanger (2), liquid-storage container (4), the 3rd valve (7.3), pump pond (8) first entrances, pump (5), liquid outlet (6) are connected in turn, storage tank (1) liquid outlet is connected with pump pond (8) second entrances through the second valve (7.2), and heat exchanger (2) is connected with low-temperature receiver (3).
3. a zero-emission liquid feeding system, is characterized in that comprising storage tank (1), heat exchanger (2), low-temperature receiver (3), liquid-storage container (4), pump (5), liquid outlet (6), the first valve (7.1), the second valve (7.2), the 3rd valve (7.3), pump pond (8); Wherein storage tank (1) gas outlet, the first valve (7.1), heat exchanger (2), liquid-storage container (4), the 3rd valve (7.3), pump pond (8), the second valve (7.2), storage tank (1) liquid outlet are connected in turn, pump (5) is placed in pump pond (8), pump (5) is connected with liquid outlet (6), and heat exchanger (2) is connected with low-temperature receiver (3).
4. a kind of zero-emission liquid feeding system according to claim 1, is characterized in that described low-temperature receiver (3) is chiller plant or cold fluid.
5. according to a kind of zero-emission liquid feeding system described in claim 1 or 2 or 3, it is characterized in that described storage tank (1) and the pressure of the connection mouth of the second valve (7.2) are greater than the pressure of pump pond (8) and the second valve (7.2) connection mouth.
6. according to a kind of zero-emission liquid feeding system described in claim 1 or 2 or 3, it is characterized in that the liquid level height of described storage tank (1) is higher than the entrance of pump (5).
7. use a zero-emission liquid feeding method for system as claimed in claim 1, it is characterized in that, its step is as follows:
1) the first valve (7.1), the 3rd valve (7.3) is initially closed condition, and the second valve (7.2) is initially opening state; Open the first valve (7.1), the gas in storage tank (1) enters heat exchanger (2), after gas and low-temperature receiver (3) heat exchange, is condensed into liquid, flows into liquid-storage container (4); Liquid-storage container has after liquid in (4), closes the second valve (7.2), opens the 3rd valve (7.3), and the liquid in liquid-storage container (4) flows out from the 3rd valve (7.3), then is delivered to liquid outlet (6) by pump (5), realizes boil-off gas liquefaction;
2) the 3rd valve (7.3) is initially closed condition, and the second valve (7.2) is initially opening state; Liquid in storage tank (1) flows out from the second valve (7.2), then is delivered to liquid outlet (6) by pump (5).
8. a zero-emission liquid feeding method for use system as described in claim 2 or 3, is characterized in that, its step is as follows:
1) the first valve (7.1), the 3rd valve (7.3) is initially closed condition, and the second valve (7.2) is initially opening state; Open the first valve (7.1), the gas in storage tank (1) enters heat exchanger (2), after gas and low-temperature receiver (3) heat exchange, is condensed into liquid, flows into liquid-storage container (4); Liquid-storage container has after liquid in (4), close the second valve (7.2), open the 3rd valve (7.3), the liquid in liquid-storage container (4) is through the 3rd valve (7.3) inflow pump pond (8), by pump (5), be delivered to liquid outlet (6) again, realize boil-off gas liquefaction;
2) the 3rd valve (7.3) is initially closed condition, and the second valve (7.2) is initially opening state; Liquid in storage tank (1) is through the second valve (7.2) inflow pump pond (8), then is delivered to liquid outlet (6) by pump (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310675721.8A CN103697327B (en) | 2013-12-13 | 2013-12-13 | A kind of zero-emission liquid feeding system and method thereof |
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| CN201310675721.8A CN103697327B (en) | 2013-12-13 | 2013-12-13 | A kind of zero-emission liquid feeding system and method thereof |
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| CN103697327A true CN103697327A (en) | 2014-04-02 |
| CN103697327B CN103697327B (en) | 2016-05-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104110574A (en) * | 2014-07-29 | 2014-10-22 | 江苏克劳特低温技术有限公司 | Cryogenic gas condensing and recycling system and method |
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| CN103697327B (en) | 2016-05-18 |
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Owner name: JIANGSU CROUT CRYOGENIC TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HANGZHOU KELAOTE LOW TEMPERATURE EQUIPMENT CO., LTD. Effective date: 20141211 |
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Effective date of registration: 20141211 Address after: 213022 Jiangsu city of Changzhou province Hehai West New District No. 538 state electromechanical Park Building No. 17 Applicant after: JIANGSU CRYOTE CRYOGENIC TECHNOLOGY CO., LTD. Address before: Room 161, C building, No. 525 Xixi Road, Xihu District, Zhejiang, Hangzhou 310007, China Applicant before: HANGZHOU KELAOTE LOW TEMPERATURE EQUIPMENT CO., LTD. |
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