CN207751195U - A kind of LNG vaporization cold energy retracting device - Google Patents
A kind of LNG vaporization cold energy retracting device Download PDFInfo
- Publication number
- CN207751195U CN207751195U CN201621380210.9U CN201621380210U CN207751195U CN 207751195 U CN207751195 U CN 207751195U CN 201621380210 U CN201621380210 U CN 201621380210U CN 207751195 U CN207751195 U CN 207751195U
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- valve
- shell
- heat exchanger
- lng
- tube heat
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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
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
The utility model discloses a kind of LNG vaporization cold energy retracting devices, its technical solution is to set up pipeline before LNG is passed into vaporizer and exchange heat through heat exchanger by LNG stream, pass through 1,2 grade of circuit sorption enhanced, the cold storage of LNG vaporization in freezing water tank, for air conditioner end equipment FCU refrigeration.
Description
Technical field
The present invention relates to LNG vaporization cold energy retracting devices, specifically utilize heat exchanger and LNG vaporization device to connect, in enclosed
It cycles through low-temperature circulating working medium and absorbs LNG gasification cold energy for air conditioner end equipment FCU.
Background technology
In world's primary energy structure, excellent properties and the extensive use such as natural gas, high-quality, cleaning efficient with its will
Most energy forms is utilized as 21 century people.Storage and transportation for natural gas, unless being adopted when geographical conditions are very superior
With pipeline, the storage form of liquid, i.e. liquefied natural gas LNG otherwise must be used.However liquefied natural gas is finally most
It is to be used in a gaseous form, this just needs LNG to vaporize again, and the low temperature environment created in vaporescence is widely transported
Every field is used, most enterprises are all vaporized LNG using vaporizer at present, and -162 DEG C of LNG is passed through vaporizer
It is warming up to and is less than 10 DEG C or so of environment temperature, be then discharged in air, the heat in air is mainly absorbed due to LNG vaporization device
It measures, the huge cold energy contained in LNG can be such that the water in air is condensed in evaporator surface, cause vaporescence to be obstructed, LNG is not
It can be completely vaporized in vaporizer, continue to vaporize heat release in conveyance conduit, can make at conveyance conduit at low ambient temperatures, for a long time
Work can reduce equipment life, improve maintenance cost.Therefore it is this to provide a kind of device that can absorb LNG vaporization process cold energy
The technical background of invention.
Invention content
The object of the present invention is to provide the cold energy retracting devices generated during a kind of recycling LNG vaporization.
The present invention illustrates that the principle of the present invention and used retracting device form by attached drawing, by 1 grade of circuit and 2
The cold energy discharged during the sorption enhanced LNG vaporization of grade circuit freezes for common air-conditioning, and 1 grade of circuit is by two pipe shell type heat exchanges
Device, metering pump, the compositions such as low-temperature storage tank, 2 grades of circuits freeze water pot, water pump by shell-and-tube heat exchanger, air conditioner end equipment FCU
Deng composition.1 grade of circuit is exchanged heat by shell-and-tube heat exchanger and LNG, absorbs the cold of LNG gasification process release, 2 grades of circuits pass through
The hot device of shell-and-tube absorbs the cold energy in 1 grade of circuit and is used for air conditioner refrigerating.
The features of the present invention and advantage, are exchanged heat by heat exchanger, have both improved the temperature of carburetor inlet natural gas, are improved
The surface frost being susceptible in vaporizer vaporescence, extends the service life of equipment, while shifting vaporescence
In huge cold, be used for daily life air conditioner refrigerating, not only saved the clean expense of LNG external pipes, but also reached energy saving
The purpose of emission reduction.Whole system is provided with multiple valves and flange-interface, and the cryogenic liquid in recyclable 1 grade of circuit is used for freezer
The many aspects such as refrigeration, medical treatment.
Description of the drawings
Shown attached drawing is structure drawing of device
Specific implementation mode
The LNG gasification cold energy retracting device, including LNG unload suction flange 1, LNG inlet pipelines valve 2, vaporization
Device 3, refrigerant inlet flange 4, refrigerant inlet valve 5, low-temperature storage tank 6, shell-and-tube heat exchanger 7, valve 8, the first valve
(9), the second valve (10), shell-and-tube heat exchanger 11, metering pump 12, chilled water import flange 13, freezing water tank 14, water pump 15,
Valve 16, air conditioner end equipment fan coil (FCU) 17,18,1 grade of circuit cycle working medium of valve are R23,2 grades of circuit cycle works
Matter is water.
Cyclic process is that LNG unloads from the entrance of flange 1, and valve 2 is closed, and LNG stream, which enters to shell-and-tube heat exchanger 7, to exchange heat, so
Enter the heat release again of vaporizer 3 afterwards, finally exits into natural gas collection device.Suction flange 4 is packed into primary cycle refrigeration
Working medium R23 is entered by valve 5 in low-temperature storage tank 6, and R23 enters shell-and-tube heat exchanger 7 and LNG and exchanges heat, and absorbs LNG vaporization
The cold of process, from shell-and-tube heat exchanger 7 come out after low temperature R23 flow through valve 8 after, enter back into shell-and-tube heat exchanger 11 and change
Heat, the R23 come out from shell-and-tube heat exchanger 11 flow back to low-temperature storage tank by the pressurization of metering pump 8, complete 1 grade of cycle.
Suction flange 13 is packed into 2 grades of circuit cycle working-medium waters, is stored in freezing water tank 14, and water exchanges heat in shell-and-tube heat exchanger 11
Enter freezing water tank after absorbing the cold in 1 grade of circuit, the water come out from water tank flows through valve 16 in sky after the pressurization of water pump 15
It adjusts in end-equipment fan coil (FCU) 17 and air heat-exchange, achievees the effect that air conditioner refrigerating, the water come out from FCU enters back into
Shell-and-tube heat exchanger is cooled, complete 2 grades of cycles (or valve 16 is closed, and valve 18 is opened, the water that water pump 15 comes out without
Fan coil FCU17 enters directly into shell-and-tube heat exchanger and completes 2 grades of cycles).
Claims (4)
1. a kind of LNG vaporization cold energy retracting device, including two shell-and-tube heat exchanger formulas, water pump, metering pump, air conditioner end equipment
FCU, low-temperature storage tank, freezing water tank, 1 grade of circuit is by two shell-and-tube heat exchangers, low-temperature storage tank and metering pump composition, low-temperature storage tank
Outlet end is connected with the first shell-and-tube heat exchanger (7) shell arrival end, the first shell-and-tube heat exchanger (7) shell outlet end and valve
8 arrival ends are connected, and 8 outlet end of valve is connected with the second shell-and-tube heat exchanger (11) tube layer arrival end, the second shell-and-tube heat exchanger
(11) tube layer outlet end is connected with metering pump arrival end, and metering pump outlet end is connected with low-temperature storage tank arrival end；2 grades of circuits are by pipe
Shell heat exchanger, air conditioner end equipment FCU, the compositions such as water pump and freezing water tank, freezing water tank outlet end and pump entrance end phase
Even, pump outlet is connected with FCU arrival ends, and the outlet ends FCU are connected with the second shell-and-tube heat exchanger (11) shell arrival end, the
Two shell-and-tube heat exchangers (11) shell outlet end is connected to freezing water tank arrival end.
2. LNG vaporization cold energy retracting device according to claim 1, it is provided with third valve (2), the 4th valve (16),
5th valve (18) is for adjusting LNG vaporization amount and air conditioner end equipment refrigerating capacity, when the cold that whole system needs is enough,
Third valve (2) can be suitably opened, LNG is allowed to enter directly into the refrigerating capacity that vaporizer vaporization reduces whole system；When air-conditioning system
When cold deficiency, by increasing the 4th valve (16) aperture, reduces the 5th valve (18) aperture, increase air conditioner refrigerating amount；Work as sky
It when modulation cold is excessive, can suitably reduce the 4th valve (16) aperture, increase by the 5th valve (18) aperture, reduce air conditioner refrigerating
Amount.
3. LNG vaporization cold energy retracting device according to claim 1, when whole system refrigerating capacity deficiency and control valve is not
When being sufficient for refrigeration demand, the input power of water pump 15 is increased, the operating pressure for increasing by 2 grades of circuits reaches increase refrigerating capacity
Effect.
4. LNG vaporization cold energy retracting device according to claim 1, whole device is provided with the first valve (9), the second valve
Door (10), the first valve of unlatching (9), the second valve (10) can recycle the low-temperature circulating working medium R23 in 1 grade of circuit, for cold
Library is freezed, many aspects such as low temperature Rankine cycle power generation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621380210.9U CN207751195U (en) | 2016-12-16 | 2016-12-16 | A kind of LNG vaporization cold energy retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621380210.9U CN207751195U (en) | 2016-12-16 | 2016-12-16 | A kind of LNG vaporization cold energy retracting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207751195U true CN207751195U (en) | 2018-08-21 |
Family
ID=63145248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621380210.9U Active CN207751195U (en) | 2016-12-16 | 2016-12-16 | A kind of LNG vaporization cold energy retracting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207751195U (en) |
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2016
- 2016-12-16 CN CN201621380210.9U patent/CN207751195U/en active Active
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