CN201607333U - Test device for liquefied natural gas cold-energy adjusting system - Google Patents
Test device for liquefied natural gas cold-energy adjusting system Download PDFInfo
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- CN201607333U CN201607333U CN2009202863467U CN200920286346U CN201607333U CN 201607333 U CN201607333 U CN 201607333U CN 2009202863467 U CN2009202863467 U CN 2009202863467U CN 200920286346 U CN200920286346 U CN 200920286346U CN 201607333 U CN201607333 U CN 201607333U
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- energy
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- cold energy
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- natural gas
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Abstract
The utility model relates to a test device for a liquefied natural gas cold-energy adjusting system, comprising an energy storage box, a first heat exchanger, a second heat exchanger, an energy storage medium, a liquid-nitrogen gasified open system pipeline, a cold-energy medium circulation pipeline and a cold-energy utilizing device, wherein the liquid-nitrogen gasified open system pipeline is connected with the first heat exchanger and is used for providing cold energy; the cold-energy medium circulation pipeline is connected with the second heat exchanger in series to lead a cold-energy medium to absorb the cold energy of the energy storage medium so as to reduce the temperature, outflow the energy storage box after liquefaction, and then enter the cold-energy utilizing device to comprehensively utilize the cold energy; and the utilized cold-energy medium is exchanged into higher-temperature cold-energy medium gas, then enters the energy storage box again and carries out the circle utilization of the cold-energy medium after temperature release by a pressure-relief pot, i.e., the cold energy is utilized circularly. The test device has the benefit of being capable of simulating the release process of the liquefied natural gas in the gasification process, and solving the problem of greater fluctuation of the cold energy supplying, and being beneficial to improving the utilization efficiency of the cold energy.
Description
[technical field]
The utility model relates to the new energy use technology field, specifically, is a kind of cold energy regulating system test unit that liquefied natural gas (LNG) uses when cold energy is recycling in gasification.
[background technology]
Rock gas is one of main combustion gas of using in the present city.For ease of transporting and storing, rock gas will be removed impurity earlier usually after exploitation is come out, under-162 ℃ of low temperature, liquefy, become liquefied natural gas (LNG) (liquefied natural gas, abbreviation LNG) transports again after, after arriving liquefied gas receiving station, generally again liquefied natural gas (LNG) is gasified by gasifier, only after gasification, just can flow to the user and do the combustion gas use.Liquefied natural gas (LNG) has a large amount of cold energy and discharges in gasification, reclaim and utilize this cold energy can carry out multiple comprehensive utilization, saves a large amount of energy in city.
But at present, be directly to utilize or the indirect utilization cold energy all needs additional supply and drives refrigerant and flow, make cold energy produce position transfer, after being transferred to the position that needs to discharge cold energy, carry out the utilization of cold energy again.In addition, in the receiving station of liquefied natural gas (LNG), the gasification of liquefied natural gas (LNG) load is with season fluctuation to take place in time, and the demand of daytime and combustion gas in winter is big, and the cold energy of generation is also many; The demand of night and combustion gas in summer is little, and the cold energy of generation is also few, therefore, can be unbalanced for the cold energy that utilizes.For guaranteeing that cold energy use equipment can continue operation reposefully, generally design cold energy use equipment at present by minimum amount of vaporization, therefore, the utilization factor of cold energy is lower, is no more than 20%.If can reasonably regulate, just can improve the utilization ratio of cold energy effectively to cold energy.
[utility model content]
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of test unit of cold energy of liquefied natural gas regulating system is provided, and to solve the big problem of present cold energy supply undulatory property, increases substantially the utilization factor of cold energy of liquefied natural gas.
For achieving the above object, the technical scheme taked of the utility model is:
A kind of cold energy of liquefied natural gas regulating system test unit, contain accumulation of energy case, accumulation of energy medium, heat interchanger, circulation line and cold energy use device, it is characterized in that, in the accumulation of energy case, be provided with first heat interchanger and second heat interchanger and fill the accumulation of energy medium, what be connected with the accumulation of energy case has a liquid nitrogen gasification open system pipeline and a cold energy media circulation line, liquid nitrogen gasification open system pipeline is made of liquid nitrogen container, liquid nitrogen container outlet hose, hand valve, first thermometer, second thermometer, tank and first flow meter, be connected with first heat interchanger, be used to provide cold energy; Cold energy media circulation line is made of hand valve, second flowmeter, the 3rd thermometer, the 5th thermometer, cold energy media fluid reservoir, canned motor pump, tank and release jar, contact with second heat interchanger, canned motor pump drives the cold energy media and enters the energy storage case through hand valve, second flowmeter, the 3rd thermometer, the cold energy that absorbs the accumulation of energy medium by second heat interchanger is lowered the temperature and is flowed out the accumulation of energy case again after the liquefaction, and the cold energy media enters tank (both cold energy use devices) through the 5th thermometer, fluid reservoir and canned motor pump again and carries out the utilization of cold energy; Be connected with the release jar after the tank, the cold energy media of outflow tank becomes higher temperatures after the release of release jar cold energy vector gas reenters the accumulation of energy case from hand valve, constitutes the pipeline circulation of cold energy media.
Described accumulation of energy case is made of interior external box wall, at the high density polyurethane expanded material that is filled with between interior external box wall more than the thick 100mm.
Described heat interchanger adopts tube coil type heat exchanger.
Described energy-accumulating medium adopts nonmetal phase transformation energy-accumulating medium.
Described cold energy media is selected the R410 cold-producing medium that thermal capacity is big, low temperature is easy to liquefy for use.
The thermometer that adopts is selected T type thermocouple thermometer for use, and suitable temperature range is-200～200 ℃, and error is ± 0.3 ℃.
On described tank, be provided with stirrer, in tank, be provided with coil pipe.
On described tank, be provided with two stirrers.
The course of work of the present utility model is as follows:
(1) opens hand valve in the liquid nitrogen gasification open system pipeline, regulate the flow of liquid nitrogen, liquid nitrogen enters the energy storage case from liquid nitrogen container through the liquid nitrogen container outlet hose, carry out the cold energy exchange by first heat interchanger and energy-accumulating medium, liquid nitrogen absorbs the heat energy of accumulation of energy medium and the accumulation of energy case is flowed out in the vaporization that heats up again, the nitrogen that flows out shows the outflow temperature by second thermometer, for avoiding cold nitrogen environment is worked the mischief, and nitrogen is discharged behind first flow instrumentation amount temperature and flow after tank rises to room temperature again; In this course, the accumulation of energy medium then absorbs the cold energy of liquid nitrogen, and its variation of temperature is measured by the 6th thermometer that is in energy storage case center and first thermometer that is in the edge, and first thermometer can reflect that the accumulation of energy medium absorbs the process of temperature variation behind the cold energy.
(2) open hand valve in the cold energy media circulation line, regulate the flow of cold energy media, cold energy media R410 flows to the energy storage case under the driving of canned motor pump, the flow of the second flowmeter survey cold energy media, the temperature of the 3rd thermometer measure cold energy media, cold energy media R410 carries out the cold energy exchange by second heat interchanger and energy-accumulating medium in the energy storage case, absorb the cold energy of accumulation of energy medium and the accumulation of energy case is flowed out in the liquefaction of lowering the temperature again, the cold energy media R410 of outflow is shown by the 5th thermometer and flows into fluid reservoir after flowing out temperature.
The low-temperature liquefaction cold energy media R410 that flows out from fluid reservoir bottom utilizes the water of tank that coil pipe is carried out water-bath through the laggard coil pipe of going in the tank of canned motor pump pressurization, and cold energy media R410 discharges cold energy and gasifies at this; For increasing adding thermal effect and making even water temperature of water-bath, avoid tank to freeze, be provided with first stirrer and second stirrer on the tank, and change by the water temperature of the 4th thermometer record tank.For making the stable gas pressure in the cold energy media circulation line, the cold energy media R410 when guaranteeing to reenter the energy storage case is gasified totally, and the cold energy media R410 that flows out tank must be through entering energy storage case 5 after the release of release jar again.
In total system of the present utility model, liquid nitrogen container is used to provide cold energy, and cold energy media R410 brings cold energy into tank (cold energy use device) and utilizes, and can calculate the supply of cold energy according to the liquid nitrogen gasification amount; The cold energy of being brought by the measurable cold energy media R410 of tank (cold energy use device) circulation.
Utilize native system can simulate the dispose procedure of liquefied natural gas (LNG) cold energy in gasification.
[description of drawings]
Accompanying drawing 1 is the structural representation of a kind of cold energy of liquefied natural gas regulating system of the utility model test unit:
Accompanying drawing 2 is the square structure synoptic diagram of heat conduction circulation pipe;
Accompanying drawing 3 is combined into the structural representation of two groups of cross one another heat exchangers of bronze pan tube for bronze pan tube;
Accompanying drawing 4 stirs synoptic diagram for tank;
Label among the figure is respectively:
1, liquid nitrogen container, 2, the liquid nitrogen container outlet hose, 3, hand valve,
4, first thermometer, 5, the energy storage case, 6, second thermometer,
7, tank, 8, the first flow meter, the 9, the 3rd thermometer,
10, second flowmeter, 11, hand valve, 12, the release jar,
13, the 4th thermometer, 141, first stirrer, 142, second stirrer,
15, tank, 16, canned motor pump, 17, fluid reservoir,
18, the 5th thermometer, the 19, the 6th thermometer, 20, energy-accumulating medium,
21, first heat interchanger, 22, second heat interchanger, 23, coil pipe,
24, baffle plate.
[embodiment]
Provide the embodiment of a kind of cold energy of liquefied natural gas regulating system of the utility model test unit below in conjunction with accompanying drawing, still, enforcement of the present utility model is not limited to following embodiment.
Referring to accompanying drawing 1, a kind of cold energy of liquefied natural gas regulating system test unit, mainly by accumulation of energy case 5, accumulation of energy medium 20, heat interchanger, circulation line and cold energy use device constitute, in accumulation of energy case 5, be provided with first heat interchanger 21 and second heat interchanger 22 and be filled with accumulation of energy medium 20, what be connected with accumulation of energy case 5 has a liquid nitrogen gasification open system pipeline and a cold energy media circulation line, liquid nitrogen gasification open system pipeline is by liquid nitrogen container 1, liquid nitrogen container outlet hose 2, hand valve 3, first thermometer 4, second thermometer 6, tank 7 and first flow meter 8 constitute, be connected with first heat interchanger 21, be used to provide cold energy (therebetween, liquid nitrogen is by carrying out the cold energy exchange with energy-accumulating medium 20, absorb the heat energy of accumulation of energy medium 20 and the vaporization that heats up, flow out accumulation of energy case 5 again, accumulation of energy medium 20 then absorbs cold energy in this process); Cold energy media circulation line is made of hand valve 11, second flowmeter 10, the 3rd thermometer 9, the 5th thermometer 18, fluid reservoir 17, canned motor pump 16, tank 15 and release jar 12, with second heat interchanger, 22 polyphones, the cold energy media enters energy storage case 5 through hand valve 11, second flowmeter 10, the 3rd thermometer 9 under the driving of canned motor pump 16, the cold energy that absorbs accumulation of energy media 20 by second heat interchanger 22 is lowered the temperature and is flowed out accumulation of energy case 5 again after the liquefaction, enters tank 15 (both cold energy use devices) through the 5th thermometer 18, fluid reservoir 17 and canned motor pump 16 and carries out the utilization of cold energy; Be connected with release jar 12 behind the tank 15, the cold energy media of outflow tank 15 becomes higher temperatures after 12 releases of release jar cold energy vector gas reenters accumulation of energy case 5 from hand valve 11, constitutes the circulation line of cold energy media.
Wherein:
Accumulation of energy case 5 adopts cold-rolled steel sheet to make, and outer container is of a size of 1040 * 620 * 1070mm, and interior case is of a size of 940 * 520 * 970mm, is filled with the above high density polyurethane expanded material of thick 100mm between interior external box wall.
The accumulation of energy media 20 of filling in the accumulation of energy case 5 adopt nonmetal phase transformation energy-accumulating medium, can be solid-state, also can be liquid, and key is to want that quantity of heat storage is big, heat transfer is fast; The utility model adopts " PCM1 number " refrigerant medium of Tongji University's development as energy-accumulating medium 20.
It is the liquid nitrogen container 1 of 1M3 that liquid nitrogen gasification open system pipeline selects internal capacity; Pipeline adopts copper pipe, and house steward selects the pipe of diameter 20mm for use, is in charge of the pipe of selecting diameter 12mm for use; Thermometer adopts T type thermocouple thermometer, and the scope of application is-200～200 ℃, and error is ± 0.3 ℃; Flowmeter adopts XKLV-W1-03102211 type gas meter, is stainless steel, and rated pressure 1.6Mpa, Applicable temperature are suitable for flow range: 3～20M at-20～130 ℃
3/ h, precision is ± 1.0%;
The cold energy media is selected the R410 cold-producing medium that thermal capacity is big, low temperature is easy to liquefy for use.
Canned motor pump 16 is arranged on the heat exchanger outlet position, liquid cold energy media R410a can be extracted out, and provide power for entering energy storage case 5.
First stirrer 141 and second stirrer 142 are set on tank 15 (cold energy use device), and stirring motor is selected YN90-90X2 type electro-motor for use, guarantees that the variation mobile and water temperature of water is even in the tank 15, and the part can not freeze too soon because of cooling; The coil pipe of being made by the bending of many groups copper pipe 23 is set in tank 15, makes cold energy media and water generation heat interchange.The working condition of tank 15 is (referring to an accompanying drawing 4):
Running parameter: rated power 90W; Operating voltage 220V; Ac frequency 50/60Hz; The motor rotary speed 1300/1600r/min of stirrer.In tank 15, be provided with a baffle plate 24, to guarantee circulating of water; The water yield is controlled by two valve (not shown): the inlet valve position is higher with the control water inlet, and the flowing water Valve position is low with the control water outlet.
For guaranteeing energy storage case 5 overall appearances and practicality, the design of employing integral structure: the left side is liquid nitrogen and cold energy media R410 cold switching part, the right side is the fluid reservoir 17 of automatically controlled and pipeline structure, canned motor pump 16, cold energy media etc., the import and export of liquid nitrogen and the import and export of cold energy media R410 are reserved in the rear portion, and each self-configuring hand valve; The pulley of energy storage case 5 bottom mounting strap brakes makes it to be convenient to move and the location.
Being preferred embodiment of the present utility model only in sum, is not to be used for limiting practical range of the present utility model, and the variation or the modification of all equivalences of doing according to the utility model all should be considered as technology category of the present utility model.
Claims (8)
1. cold energy of liquefied natural gas regulating system test unit, contain the accumulation of energy case, the accumulation of energy medium, heat interchanger, circulation line and cold energy use device, it is characterized in that, in the accumulation of energy case, be provided with first heat interchanger and second heat interchanger and fill the accumulation of energy medium, what be connected with the accumulation of energy case has a liquid nitrogen gasification open system pipeline and a cold energy media circulation line, liquid nitrogen gasification open system pipeline is by liquid nitrogen container, the liquid nitrogen container outlet hose, hand valve, first thermometer, second thermometer, tank and first flow meter constitute, be connected with first heat interchanger, be used to provide cold energy; Cold energy media circulation line is made of hand valve, second flowmeter, the 3rd thermometer, the 5th thermometer, cold energy media fluid reservoir, canned motor pump, tank and release jar, contact with second heat interchanger, canned motor pump drives the cold energy media and enters the energy storage case through hand valve, second flowmeter, the 3rd thermometer, the cold energy that absorbs the accumulation of energy medium by second heat interchanger is lowered the temperature and is flowed out the accumulation of energy case again after the liquefaction, and the cold energy media enters the utilization that tank carries out cold energy through the 5th thermometer, fluid reservoir and canned motor pump again; Be connected with the release jar after the tank, the cold energy media of outflow tank becomes higher temperatures after the release of release jar cold energy vector gas reenters the accumulation of energy case from hand valve, constitutes the pipeline circulation of cold energy media.
2. a kind of cold energy of liquefied natural gas regulating system test unit according to claim 1 is characterized in that described accumulation of energy case is made of interior external box wall, at the high density polyurethane expanded material that is filled with between interior external box wall more than the thick 100mm.
3. a kind of cold energy of liquefied natural gas regulating system test unit according to claim 1 is characterized in that, described heat interchanger adopts tube coil type heat exchanger.
4. a kind of cold energy of liquefied natural gas regulating system test unit according to claim 1 is characterized in that described energy-accumulating medium adopts nonmetal phase transformation energy-accumulating medium.
5. a kind of cold energy of liquefied natural gas regulating system test unit according to claim 1 is characterized in that, described cold energy media is selected the R410 cold-producing medium that thermal capacity is big, low temperature is easy to liquefy for use.
6. a kind of cold energy of liquefied natural gas regulating system test unit according to claim 1 is characterized in that the thermometer of employing is selected T type thermocouple thermometer for use, and suitable temperature range is-200～200 ℃, and error is ± 0.3 ℃.
7. a kind of cold energy of liquefied natural gas regulating system test unit according to claim 1 is characterized in that, is provided with stirrer on described tank, is provided with coil pipe in tank.
8. a kind of cold energy of liquefied natural gas regulating system test unit according to claim 1 is characterized in that, is provided with two stirrers on described tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202863467U CN201607333U (en) | 2009-12-25 | 2009-12-25 | Test device for liquefied natural gas cold-energy adjusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202863467U CN201607333U (en) | 2009-12-25 | 2009-12-25 | Test device for liquefied natural gas cold-energy adjusting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201607333U true CN201607333U (en) | 2010-10-13 |
Family
ID=42952039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202863467U Expired - Fee Related CN201607333U (en) | 2009-12-25 | 2009-12-25 | Test device for liquefied natural gas cold-energy adjusting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201607333U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012141A (en) * | 2010-11-01 | 2011-04-13 | 江苏永能光伏科技有限公司 | Liquid nitrogen vaporization cold recycling device |
| CN102563777A (en) * | 2010-12-31 | 2012-07-11 | 中国石油天然气集团公司 | System for collecting cold energy of liquefied natural gas in drilling team |
| CN109959196A (en) * | 2019-03-07 | 2019-07-02 | 西安航天动力研究所 | A kind of wide scope temperature adjusting heat-exchanger rig for methane subzero treatment |
| CN115479422A (en) * | 2021-06-15 | 2022-12-16 | 中集安瑞科能源装备（苏州）有限公司 | Cold energy recovery and remote mobile cold supply system |
-
2009
- 2009-12-25 CN CN2009202863467U patent/CN201607333U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012141A (en) * | 2010-11-01 | 2011-04-13 | 江苏永能光伏科技有限公司 | Liquid nitrogen vaporization cold recycling device |
| CN102012141B (en) * | 2010-11-01 | 2012-05-02 | 江苏永能光伏科技有限公司 | Liquid nitrogen vaporization cold recycling device |
| CN102563777A (en) * | 2010-12-31 | 2012-07-11 | 中国石油天然气集团公司 | System for collecting cold energy of liquefied natural gas in drilling team |
| CN109959196A (en) * | 2019-03-07 | 2019-07-02 | 西安航天动力研究所 | A kind of wide scope temperature adjusting heat-exchanger rig for methane subzero treatment |
| CN115479422A (en) * | 2021-06-15 | 2022-12-16 | 中集安瑞科能源装备（苏州）有限公司 | Cold energy recovery and remote mobile cold supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20111225 |