CN206504498U - LNG gasification cold energy refrigeration storage system - Google Patents
LNG gasification cold energy refrigeration storage system Download PDFInfo
- Publication number
- CN206504498U CN206504498U CN201720103743.0U CN201720103743U CN206504498U CN 206504498 U CN206504498 U CN 206504498U CN 201720103743 U CN201720103743 U CN 201720103743U CN 206504498 U CN206504498 U CN 206504498U
- Authority
- CN
- China
- Prior art keywords
- tower
- heat
- recovery
- pressure
- cold energy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model is related to LNG cold energy and returns technical field, especially LNG gasification cold energy refrigeration storage system, including recovery of latent heat tower, Exposure degree tower and refrigerating plant, and process valve, the 3rd switch valve and the 4th pressure-regulating valve are disposed with air inlet pipe, 3rd switch valve is by pipeline communication on recovery of latent heat tower, the recovery of latent heat tower lower end is communicated with the first coolant storage tank by flowmeter, the first pressure regulating valve is connected with pressure transmitter by wire, and the Exposure degree tower lower end is communicated in the first coolant storage tank by flowmeter；The re-heat tower side, which is communicated with two discharge pipes, one of discharge pipe, is provided with second pressure regulating valve, and discharge pipe is connected with air supply header pressure-regulating device, and the 3rd pressure-regulating valve is provided with another discharge pipe.The utility model cold energy reclaims safety interlocking and further improves equipment safety entirely, and device operating flexibility is big, can even running in high and low load.
Description
Technical field
The utility model is related to LNG cold energy recovery technologies field, more particularly to LNG gasification cold energy refrigeration storage system.
Background technology
Liquefied natural gas (LNG) is that natural gas passes through depickling, dewater treatment, then passes through cryogenic refrigeration technology liquefaction
Cryogenic liquid mixtures.Contain huge cold energy in LNG, mainly the gasification latent heat in gasification, if not being used is
To the significant wastage of the energy.Show through feasibility study, one 3,500,000 tons/year of LNG projects, if its cold energy can reach
Make full use of, its total economic benefit is up to 400,000,000 yuan/year.At present, in LNG receiving stations and gasification station, LNG gasification is mainly using sea
Water or air are as thermal source, while being allowed to regasify using heating furnace as supplemental heat source.LNG absorbs the heat of seawater or air
Amount, that is, discharge cold to seawater or air, so as to be gasificated as the natural gas that can be burnt.In traditional gasification not
But do not utilize LNG cold energy resource and potential threat is caused to environment.With the in short supply of global petroleum resources and
Increasing environmental pollution so that pollution is small, have good burning performance, the application of the natural gas of rich reserves is more and more extensive, LNG
The recycling of cold energy will have extraordinary development prospect.
Utility model content
The purpose of this utility model is that, for low, the high energy consumption that solves the cold energy rate of recovery present in prior art, operation is multiple
Miscellaneous the shortcomings of, and the LNG gasification cold energy refrigeration storage system proposed.
To achieve these goals, the utility model employs following technical scheme：
LNG gasification cold energy refrigeration storage system, including recovery of latent heat tower, Exposure degree tower, re-heat tower and refrigerating plant are designed, and
It is sequentially communicated between recovery of latent heat tower, Exposure degree tower and re-heat tower, the recovery of latent heat tower is communicated with air inlet pipe, and air inlet pipe
On be disposed with process valve, the 3rd switch valve and the 4th pressure-regulating valve, the 3rd switch valve is existed by pipeline communication
On recovery of latent heat tower, the recovery of latent heat tower lower end is communicated with the first coolant storage tank, first coolant storage tank by flowmeter
It is communicated in by tracheae on refrigerating plant, and tracheae and is disposed with second switch valve and the first refrigerant pump；
The Exposure degree tower is connected on refrigerating plant by tracheae, and the gas between Exposure degree tower and refrigerating plant
First switch valve and first pressure regulating valve are disposed with pipe, the first pressure regulating valve is connected with pressure by wire
Transmitter, and pressure transmitter is arranged on tracheae, the Exposure degree tower lower end is communicated in the first refrigerant by flowmeter and stored up
Tank；
The re-heat tower side is communicated with two discharge pipes, one of discharge pipe and is provided with second pressure regulating valve,
Discharge pipe is connected with air supply header pressure-regulating device, and the 3rd pressure-regulating valve is provided with another discharge pipe, discharge
Pipe is connected on water bath type gasifier, and temperature transmitter is additionally provided with discharge pipe, and the re-heat tower side also passes through pipeline
Connection is on refrigerating plant, and the re-heat tower also has the second coolant storage tank by pipeline communication, and the second coolant storage tank passes through pipe
Road is connected on refrigerating plant, and process valve and second are provided with the pipeline between second coolant storage tank and refrigerating plant
Refrigerant pump；
Liquid-level switch, first coolant storage tank are provided with the recovery of latent heat tower, Exposure degree tower and re-heat tower
On be additionally provided with liquid level gauge, pressure gauge and the temperature transmitter with control, second coolant storage tank and the first refrigerant pump
It is provided with pressure transmitter.
It is preferred that, the refrigerating plant includes ice making tank, cold-storage jar and multiple quick-frozen tanks, the ice making tank, cold-storage jar with
The pipeline of multiple quick-frozen tank upper ends is provided with process valve, and its lower end is provided with switch valve, switch valve and is also associated with
Pressure transmitter, is connected between the ice making tank and multiple quick-frozen tanks, and the ice making tank is connected on Exposure degree tower, described cold
Tank connection is hidden on re-heat tower.
It is preferred that, the recovery of latent heat tower, Exposure degree tower and re-heat tower are cryogenic heat exchange equipment, and three equipment install cold
In case, filling pearlife simultaneously carries out vacuumizing thermal insulation in ice chest, it is to avoid loss of the cold into air and the low temperature of human body is prevented
Shield.
It is preferred that, the recovery of latent heat tower, Exposure degree tower and re-heat tower use heat exchanger structure, and refrigerating plant is using interior
Floating head, U-tube, winding pipe heat exchange tube structure situation come ensure equipment will not because of low temperature difference variation institute to equipment because heat expansion is cold
Stress deformation harm produced by contracting.
It is preferred that, the recovery of latent heat tower, Exposure degree tower, re-heat tower and the first coolant storage tank formation cold energy are reclaimed and filled
Put, and the safety valve of natural gas and coolant media is provided with cold energy retracting device, it is ensured that apparatus system safety, even running.
The utility model proposes LNG gasification cold energy refrigeration storage system, beneficial effect is：
1st, equipment essential safety；
2nd, cold energy is reclaimed entirely；
3rd, automatic cycle power consumption is low；
4th, fully automatic operation, it is simple to operate；
5th, automatically control, safety interlocking further improves equipment safety；
6th, device operating flexibility is big, can even running in high and low load.
Brief description of the drawings
Fig. 1 be the utility model proposes LNG gasification cold energy refrigeration storage system structural representation.
In figure：1 recovery of latent heat tower, 2 Exposure degree towers, 3 re-heat towers, 4 first coolant storage tanks, 5 second coolant storage tanks, 6
One refrigerant pump, 7 second refrigerant pumps, 8 first switch valves, 9 first pressure regulating valves, 10 second switch valves, 11 cold-storage jars, 12 systems
Ice can, 13 second pressure regulating valves, 14 the 3rd pressure-regulating valves, 15 pressure transmitters, 16 quick-frozen tanks, 17 process valves, 18 temperature
Spend transmitter, 19 pressure gauges, 20 flowmeters, 21 the 3rd switch valves, 22 the 4th pressure-regulating valves.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.
Reference picture 1, LNG gasification cold energy refrigeration storage system, including recovery of latent heat tower 1, Exposure degree tower 2, re-heat tower 3 and freezing
It is sequentially communicated between device, and recovery of latent heat tower 1, Exposure degree tower 2 and re-heat tower 3, recovery of latent heat tower 1 is communicated with air inlet pipe,
And process valve 17, the 3rd switch valve 21 and the 4th pressure-regulating valve 22 are disposed with air inlet pipe, the 3rd switch valve 21 leads to
Piping is connected on recovery of latent heat tower 1, and the lower end of recovery of latent heat tower 1 is communicated with the first coolant storage tank 4, first by flowmeter 20
Coolant storage tank 4 is communicated on refrigerating plant, and tracheae by tracheae is disposed with the refrigerant pump 6 of second switch valve 10 and first；
Exposure degree tower 2 is connected on refrigerating plant by tracheae, and the tracheae between Exposure degree tower 2 and refrigerating plant
On be disposed with first switch valve 8 and first pressure regulating valve 9, first pressure regulating valve 9 is connected with pressure by wire and become
Device 15 is sent, and pressure transmitter 15 is arranged on tracheae, the lower end of Exposure degree tower 2 is communicated in the first refrigerant by flowmeter 20 and stored up
Tank 4；
The side of re-heat tower 3 is communicated with two discharge pipes, one of discharge pipe and is provided with second pressure regulating valve 13, row
Outlet pipe is connected with air supply header pressure-regulating device, and the 3rd pressure-regulating valve 14 is provided with another discharge pipe, discharge
Pipe is connected on water bath type gasifier, and temperature transmitter 18 is additionally provided with discharge pipe, and the side of re-heat tower 3 is also connected by pipeline
Lead on refrigerating plant, re-heat tower 3 also has the second coolant storage tank 5 by pipeline communication, and the second coolant storage tank 5 is connected by pipeline
Lead on refrigerating plant, the refrigerant of process valve 17 and second is provided with the pipeline between the second coolant storage tank 5 and refrigerating plant
Pump 7；
Recovery of latent heat tower 1, Exposure degree tower 2 in re-heat tower 3 with being provided with liquid-level switch, the first coolant storage tank 4 also
Liquid level gauge, pressure gauge 19 and the temperature transmitter 15 with control are provided with, the second coolant storage tank 5 on the first refrigerant pump 6 with being all provided with
It is equipped with pressure transmitter 15.
This equipment is reclaimed including three-level cold energy：One-level LNG latent heat cold energy recovery towers, are mainly used in reclaiming LNG gasification process
In latent heat；Two grades of LNG sensible heat cold energy recovery towers, are mainly used in reclaiming the sensible heat after LNG gasification；Three-level re-heat tower is used for will
CNG temperature rises to more than 5 DEG C to meet CNG as the need for combustion gas.Firsts and seconds selects suitable phase transformation refrigerant, and refrigerant is used
Booster pump is delivered to freezer, gasifies in the presence of freezer throttle expansion valve, and cold energy, the gas phase after supercharging heating are provided for freezer
Refrigerant circulation, which returns cold energy and reclaims sled block, to be used to reclaim cold energy during LNG gasification, the gas phase refrigerant and low in cold energy recovery tower
Warm natural gas carries out heat exchange, and gas phase refrigerant is liquefied.Three-level re-heat tower is changed from suitable liquid phase refrigerant and low temperature CNG
Heat, can be the food refrigerated offer cold energy of freezer.
Refrigerating plant includes ice making tank 12, cold-storage jar 11 and multiple quick-frozen tanks 16, ice making tank 12, cold-storage jar 11 with it is multiple
The pipeline of the quick-frozen upper end of tank 16 is provided with process valve 17, and its lower end is provided with switch valve, switch valve and is also associated with
Pressure transmitter 15, is connected, ice making tank 12 is connected on Exposure degree tower 2 between ice making tank 12 and multiple quick-frozen tanks 16, refrigeration
Tank 11 is connected on re-heat tower 3.
Recovery of latent heat tower 1, Exposure degree tower 2 and re-heat tower 3 are cryogenic heat exchange equipment, and three equipment are installed in ice chest, cold
Pearlife is filled in case and carries out vacuumizing thermal insulation, it is to avoid loss of the cold into air and the antifreezing protection to human body.
Recovery of latent heat tower 1, Exposure degree tower 2 and re-heat tower 3 use heat exchanger structure, and refrigerating plant uses internal floating head, U-shaped
Pipe, winding pipe heat exchange tube structure situation come ensure equipment will not because low temperature difference variation institute to equipment because expanding with heat and contract with cold produced by
Stress deformation harm.
Recovery of latent heat tower 1, Exposure degree tower 2, the coolant storage tank 4 of re-heat tower 3 and first formation cold energy retracting device, and cold energy
The safety valve of natural gas and coolant media is provided with retracting device, it is ensured that apparatus system safety, even running.
Cold energy during liquefied natural gas gasifying is used for the freezing or cold of freezer using intermediate medium refrigerant by the utility model
Hide, a large amount of power consumptions that mechanical refrigeration is caused are reduced, with considerable economic and social benefit；Using new, efficient
Cold energy retracting device, reduces energy consumption, improves cold energy use efficiency, it is ensured that device technique essential safety；Whole cold energy is reclaimed and filled
Carry out skid is put, is controlled while reclaiming sled to cold energy using PLC, it is safe and reliable, it is simple to operate, it is economic and environment-friendly.
More than, only the utility model preferably embodiment, but protection domain of the present utility model do not limit to
In this, any one skilled in the art is in the technical scope that the utility model is disclosed, according to the utility model
Technical scheme and its utility model design be subject to equivalent substitution or change, should all cover protection domain of the present utility model it
It is interior.
Claims (5)
1.LNG gasification cold energy refrigeration storage systems, including recovery of latent heat tower (1), Exposure degree tower (2), re-heat tower (3) are filled with freezing
Put, and be sequentially communicated between recovery of latent heat tower (1), Exposure degree tower (2) and re-heat tower (3), it is characterised in that：The latent heat is returned
Receipts tower (1), which is communicated with air inlet pipe, and air inlet pipe, is disposed with process valve (17), the 3rd switch valve (21) and the 4th pressure
Regulating valve (22), the 3rd switch valve (21) by pipeline communication on recovery of latent heat tower (1), the recovery of latent heat tower (1)
Lower end is communicated with the first coolant storage tank (4) by flowmeter (20), and first coolant storage tank (4) is communicated in freezing by tracheae
Second switch valve (10) and the first refrigerant pump (6) are disposed with device, and tracheae；
The Exposure degree tower (2) is connected on refrigerating plant by tracheae, and Exposure degree tower (2) is between refrigerating plant
First switch valve (8) and first pressure regulating valve (9) are disposed with tracheae, the first pressure regulating valve (9) is by leading
Line is connected with pressure transmitter (15), and pressure transmitter (15) is arranged on tracheae, and Exposure degree tower (2) lower end passes through
Flowmeter (20) is communicated in the first coolant storage tank (4)；
Re-heat tower (3) side, which is communicated with two discharge pipes, one of discharge pipe, is provided with second pressure regulating valve
(13), discharge pipe is connected with air supply header pressure-regulating device, and the 3rd pressure-regulating valve is provided with another discharge pipe
(14), discharge pipe is connected on water bath type gasifier, and temperature transmitter (18), the re-heat tower are additionally provided with discharge pipe
(3) side is also by pipeline communication on refrigerating plant, and the re-heat tower (3) also has the second coolant storage tank by pipeline communication
(5), and the second coolant storage tank (5) by pipeline communication on refrigerating plant, second coolant storage tank (5) and refrigerating plant it
Between pipeline on be provided with process valve (17) and the second refrigerant pump (7)；
The recovery of latent heat tower (1), Exposure degree tower (2) in re-heat tower (3) with being provided with liquid-level switch, first refrigerant
Liquid level gauge, pressure gauge (19) and the temperature transmitter (15) with control, second coolant storage tank are additionally provided with storage tank (4)
(5) with being provided with pressure transmitter (15) on the first refrigerant pump (6).
2. LNG gasification cold energy refrigeration storage system according to claim 1, it is characterised in that the refrigerating plant includes ice making
On tank (12), cold-storage jar (11) and multiple quick-frozen tanks (16), the ice making tank (12), cold-storage jar (11) and multiple quick-frozen tanks (16)
The pipeline at end is provided with process valve (17), and its lower end is provided with switch valve, switch valve and is also associated with pressure inverting
Device (15), is connected, the ice making tank (12) is connected to Exposure degree tower between the ice making tank (12) and multiple quick-frozen tanks (16)
(2) on, cold-storage jar (11) connection is on re-heat tower (3).
3. LNG gasification cold energy refrigeration storage system according to claim 1, it is characterised in that the recovery of latent heat tower (1), aobvious
Heat recovery tower (2) and re-heat tower (3) are cryogenic heat exchange equipment, and three equipment are installed in ice chest, and filling pearlife is gone forward side by side in ice chest
Row vacuumizes thermal insulation, it is to avoid loss of the cold into air and the antifreezing protection to human body.
4. LNG gasification cold energy refrigeration storage system according to claim 1, it is characterised in that the recovery of latent heat tower (1), aobvious
Heat recovery tower (2) and re-heat tower (3) use heat exchanger structure, and refrigerating plant uses internal floating head, U-tube, the heat exchanger tube of winding pipe
Structure situation come ensure equipment will not because low temperature difference variation to equipment because expanding with heat and contract with cold produced by stress deformation endanger.
5. LNG gasification cold energy refrigeration storage system according to claim 1, it is characterised in that the recovery of latent heat tower (1), aobvious
Heat recovery tower (2), re-heat tower (3) in the first coolant storage tank (4) formation cold energy retracting device, and cold energy retracting device with being provided with
The safety valve of natural gas and coolant media, it is ensured that apparatus system safety, even running.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720103743.0U CN206504498U (en) | 2017-01-24 | 2017-01-24 | LNG gasification cold energy refrigeration storage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720103743.0U CN206504498U (en) | 2017-01-24 | 2017-01-24 | LNG gasification cold energy refrigeration storage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206504498U true CN206504498U (en) | 2017-09-19 |
Family
ID=59833025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720103743.0U Expired - Fee Related CN206504498U (en) | 2017-01-24 | 2017-01-24 | LNG gasification cold energy refrigeration storage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206504498U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642800A (en) * | 2017-01-24 | 2017-05-10 | 江苏德邦工程有限公司 | LNG gasification cold energy cold storage system and cold energy recovery method |
-
2017
- 2017-01-24 CN CN201720103743.0U patent/CN206504498U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106642800A (en) * | 2017-01-24 | 2017-05-10 | 江苏德邦工程有限公司 | LNG gasification cold energy cold storage system and cold energy recovery method |
| CN106642800B (en) * | 2017-01-24 | 2022-09-20 | 江苏德邦工程有限公司 | LNG (liquefied Natural gas) gasification cold energy refrigeration house system and cold energy recovery method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104154416B (en) | A kind of ice-reserving method and device of utilizing cold energy of liquefied natural gas with atmospheric tower | |
| CN101619914A (en) | Refrigerant phase transformation-free refrigerator for recovering liquefied natural gas (LNG) cold energy | |
| CN207881304U (en) | Cryogen cold energy use technique | |
| CN207894080U (en) | A kind of LNG cold energy recycling energy storage ice maker | |
| CN206094713U (en) | Marine LNG cold energy freezer system with improved generation trades hot junction to be constructed | |
| CN104389648A (en) | Double-source power system and control method thereof | |
| CN202812795U (en) | Liquefied natural gas (LNG) cold energy recycling utilizing system | |
| CN116045262A (en) | High-pressure heat storage system for generating industrial steam and application method thereof | |
| CN107345728A (en) | A kind of cold energy of liquefied natural gas peculiar to vessel is used for the System and method for of freezer refrigerating | |
| CN201680657U (en) | Heat pipe type cold energy utilization device based on liquefied natural gas station and refrigeration house | |
| CN109916135B (en) | Pump-free circulation method for small gas liquefaction device | |
| CN206504498U (en) | LNG gasification cold energy refrigeration storage system | |
| CN102109089A (en) | Method and device for cold energy natural circulation | |
| CN106642800A (en) | LNG gasification cold energy cold storage system and cold energy recovery method | |
| CN211120163U (en) | L NG cold energy recovery ice making system | |
| CN109028269A (en) | A kind of absorption type heat pump assembly and the heating system for recycling low-temperature water source waste heat | |
| CN204387683U (en) | A kind of LNG stores supplier | |
| CN103759496A (en) | Small skid-mounted evaporation gas reliquefaction and recovery device for liquefied natural gas | |
| CN203824151U (en) | LNG (liquefied natural gas) cold energy utilization device of LNG power driving vessel | |
| CN205938517U (en) | Cold energy utilization device | |
| CN113697083B (en) | LNG power CO 2 Cargo hold heat preservation system for transport ship by using fuel cold energy | |
| CN205102505U (en) | Natural gas liquefaction stores peak regulation device | |
| CN214535663U (en) | Energy-saving hydrogen filling system | |
| CN205014038U (en) | LNG gasification cold energy is retrieved and traditional cooling cooling tower combination system | |
| CN210267858U (en) | LNG cold energy and exhaust-heat boiler waste heat refrigerated simultaneous cooling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170919 Termination date: 20210124 |