CN205227967U - Low temperature liquefied gas gasification cold energy recovery unit - Google Patents
Low temperature liquefied gas gasification cold energy recovery unit Download PDFInfo
- Publication number
- CN205227967U CN205227967U CN201520798421.3U CN201520798421U CN205227967U CN 205227967 U CN205227967 U CN 205227967U CN 201520798421 U CN201520798421 U CN 201520798421U CN 205227967 U CN205227967 U CN 205227967U
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- Prior art keywords
- valve
- sensor
- heat exchanger
- liquefied gas
- fluid reservoir
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Links
- 238000011084 recovery Methods 0.000 title abstract description 6
- 238000002309 gasification Methods 0.000 title abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000012530 fluid Substances 0.000 claims description 38
- 238000007654 immersion Methods 0.000 claims description 14
- 230000000740 bleeding effect Effects 0.000 claims description 7
- 238000005057 refrigeration Methods 0.000 abstract description 10
- 238000012546 transfer Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000009835 boiling Methods 0.000 abstract description 2
- 239000003507 refrigerant Substances 0.000 abstract 2
- 239000007789 gas Substances 0.000 description 41
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005380 natural gas recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to an energy recovery utilizes technical field, and specific saying is a low temperature liquefied gas gasification cold energy recovery unit, compared with the prior art, the utility model, substitute immersive heat exchanger plate heat exchanger for of secondary refrigerant and refrigerated water, direct place the immersive heat exchanger in liquid storage pot in, the secondary refrigerant becomes boiling heat transfer, the coefficient of heat transfer increase promotes on heat exchange efficiency than prior art to some extent, height that not only can the greatly reduced single unit system can dwindle the storage tank volume in addition, has saved manufacturing costs, simultaneously the utility model discloses the operation is stable, and recovery efficiency is big, can be extensive use in the aspect of industry refrigeration and building refrigeration etc..
Description
Technical field
The utility model relates to energy recovery and utilizes technical field, is a kind of gasifying liquefied gas at low temp cold energy retracting device concretely.
Background technology
Liquefied gas at low temp is generally stored in storage tank, and become for end after gaseous state by gasification installation, gasification means so far mainly contain two kinds, and one is air-heating type gasifier, and another kind is water bath type gasifier.Air-heating type gasifier be by absorbing environmental in the middle of heat, the cold of liquefied gas at low temp is discharged in surrounding environment, and the cold be discharged in the middle of environment can not by effective recycling; Water bath type gasifier is the cold being absorbed liquefied gas at low temp by hot water, becomes cold water after hot water suction is cold, then is heated and become the use of hot water Posterior circle by electric heater unit, needs to consume a large amount of electric power.
A kind of new cold energy recovery system is devised in patent 201420587565.X " a kind of cold energy of liquefied natural gas recovery system ", although effectively cold energy can be absorbed, but its maximum defect is that in refrigerating medium and chilled water heat exchanger, the driving force of refrigerating medium is the pressure differential produced by liquid-phase tube height, so in order to ensure enough pressure differentials, whole device can do very high, is unfavorable for in-site installation and debugging.
Design a kind of novel structure that effectively can absorb cold energy when without the need to consuming additional energy source simply to reclaim cold energy device be very important for this reason.
Summary of the invention
The utility model breaches a difficult problem for prior art, devises a kind of novel structure that effectively can absorb cold energy when without the need to consuming additional energy source and simply reclaims cold energy device.
In order to achieve the above object, the utility model devises a kind of low-temperature liquid gas cold energy retracting device, comprise: major axis stop valve, pneumatic control valve, pneumatic stopping valve, sensor, ball valve, safety valve, plate type heat exchanger, magnetic valve, immersion heat exchanger, fluid reservoir, blowoff valve, air bleeding valve, water flow switch and filter, it is characterized in that: one end of major axis stop valve one divide two-way respectively with liquefied gas at low temp entrance, one end of major axis stop valve two is connected, the other end of major axis stop valve one is connected with one end of pneumatic control valve one, the other end of pneumatic control valve one is connected with one end of major axis stop valve three, the other end of major axis stop valve two is connected with the other end of major axis stop valve three, the other end of major axis stop valve three is also connected with one end of major axis stop valve four, the other end of major axis stop valve four is connected with one end of pneumatic stopping valve, the other end of pneumatic stopping valve is divided into three tunnels and sensor one, the port one of sensor two and plate type heat exchanger side is connected, the port two of plate type heat exchanger side be divided into four tunnels respectively with sensor three, sensor four, one end of safety valve one and ball valve one is connected, the other end of ball valve one exports with liquefied gas at low temp and is connected, the position that the port three of plate type heat exchanger opposite side is on the upper side with the side of fluid reservoir is connected, the position that the port four of plate type heat exchanger opposite side is on the upper side with fluid reservoir opposite side is connected, the position that the same side of fluid reservoir is on the upper side is provided with sensor five, the top of fluid reservoir is provided with safety valve two, the side of safety valve two is provided with sensor six, the position that fluid reservoir side is on the lower side and sensor seven, one end of magnetic valve is connected, the other end of magnetic valve is connected with ball valve two, the below of the opposite side of fluid reservoir is provided with connector one, connector two, connector one is connected with one end of ball valve three, the other end of ball valve three is divided into two-way to be connected with blowoff valve one end with pneumatic control valve two respectively, the other end of pneumatic control valve two is divided into three tunnels and sensor eight, one end of water flow switch and ball valve four is connected, the other end of ball valve four is connected with chilled water outlet, connector two is connected with one end of ball valve five, the other end of ball valve five is divided into three tunnels and air bleeding valve, one end of sensor nine and filter is connected, the other end of filter is connected with one end of ball valve six, the other end of ball valve six is connected with chilled water inlet, be provided with immersion heat exchanger in described fluid reservoir, the side employing tube connector of immersion heat exchanger is connected with the connector one of fluid reservoir side, connector two.
Described sensor one, sensor four, sensor five are pressure sensor.
Described sensor two, sensor three, sensor seven, sensor eight and sensor nine are temperature sensor.
Described sensor six is liquid level sensor.
R22 liquid is provided with in described fluid reservoir.
The utility model compared with prior art, the plate type heat exchanger immersion heat exchanger of refrigerating medium and chilled water is substituted, directly immersion heat exchanger is placed in fluid reservoir, refrigerating medium becomes boiling heat transfer, heat transfer coefficient increases, promote to some extent on heat exchange efficiency compared to prior art, not only greatly can reduce the height of single unit system, and can flask volume be reduced, save manufacturing expense, the utility model is stable simultaneously, and organic efficiency is large, can be applied in the aspect such as industrial refrigeration and building refrigeration widely.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
By reference to the accompanying drawings the utility model is further described.
See Fig. 1.The utility model devises a kind of gasifying liquefied gas at low temp cold energy retracting device, comprise: major axis stop valve, pneumatic control valve, pneumatic stopping valve, sensor, ball valve, safety valve, plate type heat exchanger, magnetic valve, immersion heat exchanger, fluid reservoir, blowoff valve, air bleeding valve, water flow switch and filter, one end of described major axis stop valve 1 divide two-way respectively with liquefied gas at low temp entrance 2, one end of major axis stop valve 23 is connected, the other end of major axis stop valve 1 is connected with one end of pneumatic control valve 1, the other end of pneumatic control valve 1 is connected with one end of major axis stop valve 35, the other end of major axis stop valve 23 is connected with the other end of major axis stop valve 35, the other end of major axis stop valve 35 is also connected with one end of major axis stop valve 46, the other end of major axis stop valve 46 is connected with one end of pneumatic stopping valve 7, the other end of pneumatic stopping valve 7 is divided into three tunnels and sensor 1, the port one of sensor 29 and plate type heat exchanger 10 side is connected, the port two of plate type heat exchanger 10 side be divided into four tunnels respectively with sensor 3 11, sensor 4 12, one end of safety valve 1 and ball valve 1 is connected, the other end and the liquefied gas at low temp of ball valve 1 export 15 and are connected, the position that the port three of plate type heat exchanger 10 opposite side is on the upper side with the side of fluid reservoir 16 is connected, the position that the port four of plate type heat exchanger 10 opposite side is on the upper side with fluid reservoir 16 opposite side is connected, the position that the same side of fluid reservoir 16 is on the upper side is provided with sensor 5 17, the top of fluid reservoir 16 is provided with safety valve 2 18, the side of safety valve 2 18 is provided with sensor 6 19, the position that fluid reservoir 16 side is on the lower side and sensor 7 22, one end of magnetic valve 23 is connected, the other end of magnetic valve 23 is connected with ball valve 2 24, the below of the opposite side of fluid reservoir 16 is provided with connector 1, connector 2 21, connector 1 is connected with one end of ball valve 3 25, the other end of ball valve 3 25 is divided into two-way to be connected with blowoff valve 26 one end with pneumatic control valve 2 27 respectively, the other end of pneumatic control valve 2 27 is divided into three tunnels and sensor 8 28, one end of water flow switch 29 and ball valve 4 30 is connected, the other end of ball valve 4 30 is connected with chilled water outlet 31, connector 2 21 is connected with one end of ball valve 5 32, the other end of ball valve 5 32 is divided into three tunnels and air bleeding valve 33, one end of sensor 9 34 and filter 35 is connected, the other end of filter 35 is connected with one end of ball valve 6 36, the other end of ball valve 6 36 is connected with chilled water inlet 37, be provided with immersion heat exchanger 38 in described fluid reservoir 16, the side employing tube connector of immersion heat exchanger 38 is connected with the connector 1 of fluid reservoir 16 side, connector 2 21.
In the utility model, sensor 1, sensor 4 12, sensor 5 17 are pressure sensor, and the operating pressure measuring each pipeline that can be distinct, avoids pipeline to burst because pressure is excessive.
In the utility model, sensor 29, sensor 3 11, sensor 7 22, sensor 8 28 and sensor 9 34 are temperature sensor, and can monitor and exchange the temperature in heat energy process, whether testing pipes device exists damage.
In the utility model, sensor 6 19 is liquid level sensor, liquid level position in monitoring fluid reservoir 16, the too high meeting of liquid level causes the work load of immersion heat exchanger 38 in fluid reservoir 16 excessive thus reduces the service life of whole utility model, liquid level is too low, can produce dry-fire condition, damages immersion heat exchanger 38.
Be provided with R22 liquid in fluid reservoir 16 in the utility model, colourless, approximate tasteless gas, does not burn, does not explode, corrosion-free, and pressurization liquefiable is water white liquid, and chemical stability and heat endurance are all very high, are good cold-producing mediums.
In concrete enforcement, the utility model has three cyclic process:
Circulation one: liquefied gas at low temp is come in by liquefied gas at low temp entrance 2, by major axis stop valve 1, pneumatic control valve 1, major axis stop valve 35, major axis stop valve 46, pneumatic stopping valve 7, sensor 1, sensor 29, flow into plate type heat exchanger 10, in plate type heat exchanger 10, endothermic gasification becomes gaseous state from liquid state, through sensor 3 11, sensor 4 12, safety valve 1, ball valve 1 is laggard becomes owner of steam line, for user after adding smelly, pressure regulation, metering.
Circulation two: cryogen gaseous by fluid reservoir 16 top out, enters plate type heat exchanger 10, carries out heat exchange with the liquefied gas at low temp of circulation one, absorb liquefied gas at low temp release cold, by gaseous state liquefy, after get back in fluid reservoir 16.
Circulation three: chilled water is through ball valve 6 36, sensor 9 34 and air bleeding valve 33, enter the immersion heat exchanger 38 being placed in fluid reservoir 16 inside, heat exchange is carried out with the R22 in fluid reservoir, take away the cold of R22, R22 absorbs heat evaporation, and the chilled water absorbed after cold is discharged by chilled water outlet 31 after blowoff valve 26, pneumatic control valve 2 27, sensor 8 28, water flow switch 29 and ball valve 4 30.
The utility model, also according to the requirement of whole equipment safety, stable operation, utilizes the control system that each valve design is complete:
1) when the water flow switch 29 of chilled water water exit position to detect after water-flow signal that certain hour default setting is after 30 seconds, system could start, and liquefied gas at low temp enters plate type heat exchanger 10.
2) chilled water water outlet side arranges pneumatic control valve 2 27 and sensor 8 28, to ensure water outlet side temperature stabilization within the scope of design temperature 7 DEG C ± 1 DEG C.
3) it is 7 DEG C when leaving water temperature in chilled water water outlet side pneumatic control valve 2 27 maximum opening situation normally runs lower than 6 DEG C, at this moment the cold that chilled water still cannot be taken cryogenic liquid gas cold volume or chilled water end refrigeration duty in the case of maximum flow rate in time away and is less than liquefied gas at low temp release is described, there is the phenomenon of " supply exceed demand ", now, need to reduce the flow that liquefied gas at low temp enters plate type heat exchanger 10, to ensure the stable of chilled water leaving water temperature.
4) it is 7 DEG C when leaving water temperature in the minimum aperture situation of chilled water water outlet side pneumatic control valve 2 27 normally runs higher than 8 DEG C, at this moment illustrate that the cold of chilled water liquefied gas at low temp release in minimum discharge situation is still less than chilled water end refrigeration duty demand, there is the phenomenon of " supply-less-than-demand ", now, need to increase the flow that liquefied gas at low temp enters plate type heat exchanger 10, to ensure the stable of chilled water leaving water temperature.
5) flow that above-mentioned Section 3 and Section 4 enter plate type heat exchanger 10 by adjustment liquefied gas at low temp reaches the stable of chilled water leaving water temperature, if regulate until minimum above-mentioned Section 3 and maximum above-mentioned Section 4 aperture, still cannot reach the stable of leaving water temperature, device sound and light alarm, still cannot remove as reported to the police in certain hour, then close liquefied gas at low temp intake valve.
6) it is 0 DEG C when the outlet temperature of liquefied gas at low temp is normally run lower than-2 DEG C, at this moment the cold that chilled water cannot be taken cryogenic liquid gas cold volume or chilled water end refrigeration duty in time away and is less than liquefied gas at low temp release is described, there is the phenomenon of " supply exceed demand ", now, need to reduce the flow that liquefied gas at low temp enters plate type heat exchanger 10, to ensure the stable of the outlet temperature of liquefied gas at low temp.
7) it is 0 DEG C when the outlet temperature of liquefied gas at low temp is normally run higher than 2 DEG C, at this moment illustrate that chilled water end refrigeration duty is greater than the cold of liquefied gas at low temp release, there is the phenomenon of " supply-less-than-demand ", now, need to increase the flow that liquefied gas at low temp enters plate type heat exchanger 10, to ensure the stable of the outlet temperature of liquefied gas at low temp.
8) 10 flows that above-mentioned Section 6 and Section 7 enter plate type heat exchanger by adjustment liquefied gas at low temp reach the stable of the outlet temperature of liquefied gas at low temp, if regulate until minimum above-mentioned Section 6 and maximum above-mentioned Section 7 aperture, still cannot reach the stable of the outlet temperature of liquefied gas at low temp, device sound and light alarm, in certain hour, warning still cannot be removed, and closes liquefied gas at low temp intake valve.
9) when liquid level sensor 19 in fluid reservoir 16 limits liquid level timer sound and light alarm lower than lower bound liquid level or higher than height, in certain hour, warning still cannot be removed, and closes liquefied gas at low temp intake valve; Illustrate that the heat exchange amount of now R22 and liquefied gas at low temp is less than the heat exchange amount of R22 and chilled water lower than lower bound liquid level, " supply-less-than-demand ", now chain chilled water goes out water regulating valve; Illustrate that the heat exchange amount of now R22 and liquefied gas at low temp is higher than the heat exchange amount of R22 and chilled water, " supply exceed demand ", now chain liquefied gas at low temp feed liquor control valve higher than high limit liquid level.
The utility model compared with prior art in summary, heat exchange efficiency promotes to some extent, not only greatly can reduce the height of single unit system, and can flask volume be reduced, save manufacturing expense, the utility model is stable simultaneously, and organic efficiency is large, can be applied in the aspect such as industrial refrigeration and building refrigeration widely.
Claims (5)
1. a gasifying liquefied gas at low temp cold energy retracting device, comprise: major axis stop valve, pneumatic control valve, pneumatic stopping valve, sensor, ball valve, safety valve, plate type heat exchanger, magnetic valve, immersion heat exchanger, fluid reservoir, blowoff valve, air bleeding valve, water flow switch and filter, it is characterized in that: one end of major axis stop valve one (1) divide two-way respectively with liquefied gas at low temp entrance (2), one end of major axis stop valve two (3) is connected, the other end of major axis stop valve one (1) is connected with one end of pneumatic control valve one (4), the other end of pneumatic control valve one (4) is connected with one end of major axis stop valve three (5), the other end of major axis stop valve two (3) is connected with the other end of major axis stop valve three (5), the other end of major axis stop valve three (5) is also connected with one end of major axis stop valve four (6), the other end of major axis stop valve four (6) is connected with one end of pneumatic stopping valve (7), the other end of pneumatic stopping valve (7) is divided into three tunnels and sensor one (8), the port one of sensor two (9) and plate type heat exchanger (10) side is connected, the port two of plate type heat exchanger (10) side be divided into four tunnels respectively with sensor three (11), sensor four (12), one end of safety valve one (13) and ball valve one (14) is connected, the other end of ball valve one (14) exports (15) and is connected with liquefied gas at low temp, the position that the port three of plate type heat exchanger (10) opposite side is on the upper side with the side of fluid reservoir (16) is connected, the position that the port four of plate type heat exchanger (10) opposite side is on the upper side with fluid reservoir (16) opposite side is connected, the position that the same side of fluid reservoir (16) is on the upper side is provided with sensor five (17), the top of fluid reservoir (16) is provided with safety valve two (18), the side of safety valve two (18) is provided with sensor six (19), the position that fluid reservoir (16) side is on the lower side and sensor seven (22), one end of magnetic valve (23) is connected, the other end of magnetic valve (23) is connected with ball valve two (24), the below of the opposite side of fluid reservoir (16) is provided with connector one (20), connector two (21), connector one (20) is connected with one end of ball valve three (25), the other end of ball valve three (25) is divided into two-way to be connected with blowoff valve (26) one end with pneumatic control valve two (27) respectively, the other end of pneumatic control valve two (27) is divided into three tunnels and sensor eight (28), one end of water flow switch (29) and ball valve four (30) is connected, the other end of ball valve four (30) is connected with chilled water outlet (31), connector two (21) is connected with one end of ball valve five (32), the other end of ball valve five (32) is divided into three tunnels and air bleeding valve (33), one end of sensor nine (34) and filter (35) is connected, the other end of filter (35) is connected with one end of ball valve six (36), the other end of ball valve six (36) is connected with chilled water inlet (37), be provided with immersion heat exchanger (38) in described fluid reservoir (16), the side employing tube connector of immersion heat exchanger (38) is connected with the connector one (20) of fluid reservoir (16) side, connector two (21).
2. a kind of gasifying liquefied gas at low temp cold energy retracting device according to claim 1, is characterized in that: described sensor one (8), sensor four (12), sensor five (17) are pressure sensor.
3. a kind of gasifying liquefied gas at low temp cold energy retracting device according to claim 1, is characterized in that: described sensor two (9), sensor three (11), sensor seven (22), sensor eight (28) and sensor nine (34) are temperature sensor.
4. a kind of gasifying liquefied gas at low temp cold energy retracting device according to claim 1, is characterized in that: described sensor six (19) is liquid level sensor.
5. a kind of gasifying liquefied gas at low temp cold energy retracting device according to claim 1, is characterized in that: described fluid reservoir is provided with R22 liquid in (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798421.3U CN205227967U (en) | 2015-10-15 | 2015-10-15 | Low temperature liquefied gas gasification cold energy recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520798421.3U CN205227967U (en) | 2015-10-15 | 2015-10-15 | Low temperature liquefied gas gasification cold energy recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205227967U true CN205227967U (en) | 2016-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520798421.3U Expired - Fee Related CN205227967U (en) | 2015-10-15 | 2015-10-15 | Low temperature liquefied gas gasification cold energy recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205227967U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108224095A (en) * | 2018-01-16 | 2018-06-29 | 中科睿凌江苏低温设备有限公司 | A kind of gasifying liquefied gas at low temp cold energy retracting device |
| CN109539671A (en) * | 2018-10-22 | 2019-03-29 | 山前（珠海）科技有限公司 | A kind of refrigeration system |
| CN109661549A (en) * | 2016-12-08 | 2019-04-19 | 川崎重工业株式会社 | Unstrpped gas liquefying plant and its control method |
-
2015
- 2015-10-15 CN CN201520798421.3U patent/CN205227967U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109661549A (en) * | 2016-12-08 | 2019-04-19 | 川崎重工业株式会社 | Unstrpped gas liquefying plant and its control method |
| CN108224095A (en) * | 2018-01-16 | 2018-06-29 | 中科睿凌江苏低温设备有限公司 | A kind of gasifying liquefied gas at low temp cold energy retracting device |
| CN109539671A (en) * | 2018-10-22 | 2019-03-29 | 山前（珠海）科技有限公司 | A kind of refrigeration system |
| CN109539671B (en) * | 2018-10-22 | 2024-04-16 | 山前（珠海）科技有限公司 | Refrigerating system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20160511 |