CN219995693U - Natural gas liquefaction auxiliary precooling equipment - Google Patents
Natural gas liquefaction auxiliary precooling equipment Download PDFInfo
- Publication number
- CN219995693U CN219995693U CN202321479974.3U CN202321479974U CN219995693U CN 219995693 U CN219995693 U CN 219995693U CN 202321479974 U CN202321479974 U CN 202321479974U CN 219995693 U CN219995693 U CN 219995693U
- Authority
- CN
- China
- Prior art keywords
- cooling
- box
- precooling
- natural gas
- spiral coil
- 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.)
- Active
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000003345 natural gas Substances 0.000 title claims abstract description 34
- 239000000110 cooling liquid Substances 0.000 claims abstract description 18
- 238000001816 cooling Methods 0.000 claims description 69
- 238000003756 stirring Methods 0.000 claims description 39
- 230000005540 biological transmission Effects 0.000 claims description 6
- 239000003949 liquefied natural gas Substances 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 2
- 239000007788 liquid Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000009826 distribution Methods 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Separation By Low-Temperature Treatments (AREA)
Abstract
The utility model discloses natural gas liquefaction auxiliary precooling equipment, which relates to the technical field of liquefied natural gas and comprises a base, wherein a first precooling box is arranged on one side of the upper end of the base, a second precooling box is arranged on the other side of the upper end of the base, cooling liquid is filled in the second precooling box, supporting legs fixedly connected with the base are arranged at the lower ends of the first precooling box and the second precooling box, a first spiral coil is arranged in the first precooling box, an input pipe is fixedly connected to the lower end of one side, far away from the second precooling box, of the first precooling box, natural gas can be precooled respectively during use through the first spiral coil and the second spiral coil, and pipeline deformation caused by large temperature difference between the natural gas and the cooling liquid in the second precooling box can be effectively avoided through transition of the first spiral coil.
Description
Technical Field
The utility model relates to the technical field of liquefied natural gas, in particular to natural gas liquefaction auxiliary precooling equipment.
Background
Liquefied natural gas, which is obtained by purifying natural gas produced in a gas field and liquefying the natural gas at a series of ultralow temperatures to obtain liquid at normal pressure, is recognized as the cleanest fossil energy on the earth; in the natural gas liquefaction process, the natural gas needs to be pre-cooled, and the situation that the container is damaged due to overlarge temperature difference caused by directly cooling and liquefying the natural gas can be avoided through the pre-cooled natural gas.
The utility model provides a liquefied natural gas precooling machine group is proposed to prior art CN218269812U, including the precooling box, the inside fixedly connected with first cooling tube of precooling box, precooling box left side outer wall is provided with the feed liquor pipe, and precooling box right side outer wall is provided with the drain pipe, works through the water pump, makes the precooling liquid in the precooling box get into in the second cooling tube, works through the refrigerator, makes the low temperature gas of refrigerator production cool down the precooling liquid in the second cooling tube, has guaranteed the normal of precooling liquid temperature, has improved the life of precooling liquid.
However, the device still has certain defect in the use, the device passes through the precooling box through the gas pipe, cool down through the precooling liquid in the cooling box, this kind of mode is when using, because precooling liquid temperature in the precooling box is lower, natural gas directly enters into in the precooling coil pipe, can lead to the pipeline to appear the deformation condition because of the difference in temperature reason, simultaneously current equipment is at the during operation, precooling liquid can't fully contact with the coil pipe, and then the inhomogeneous condition of coolant liquid temperature distribution appears easily, lead to the precooling effect to worsen, to above-mentioned problem, we provide a natural gas liquefaction auxiliary precooling equipment, in order to solve above-mentioned problem.
Disclosure of Invention
The utility model aims to provide natural gas liquefaction auxiliary precooling equipment so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the auxiliary precooling equipment for natural gas liquefaction comprises a base, wherein a first precooling box is arranged on one side of the upper end of the base, a second precooling box is arranged on the other side of the upper end of the base, cooling liquid is filled in the second precooling box, supporting legs fixedly connected with the base are arranged at the lower ends of the first precooling box and the second precooling box, a first spiral coil is arranged in the first precooling box, an input pipe is fixedly connected to the lower end of one side of the first precooling box, far away from the second precooling box, and is communicated with the bottom of the first spiral coil, a second spiral coil is arranged in the second precooling box, an output pipe is arranged at the lower end of one side of the second precooling box, far away from the first precooling box, and is communicated with the lower end of the second spiral coil, a fixing frame for fixing the second spiral coil is further arranged at one side of the second precooling box, and a plurality of exhaust holes are further formed in the side of the upper end of the first precooling box;
the lower end of the first pre-cooling box is fixedly connected with a bottom box, and a first cooling assembly for cooling the first spiral coil is arranged in the bottom box;
and a second cooling assembly for cooling the second spiral coil is arranged in the second precooling box.
As a further scheme of the utility model: the first cooling assembly comprises a first evaporator, the first spiral coil is arranged at the upper end of the bottom box, a rotating shaft is connected in the middle of the lower end of the bottom box in a rotating mode, the upper end of the rotating shaft is fixedly connected with fan blades, and an air inlet assembly for air inlet is further arranged on the bottom box.
As still further aspects of the utility model: the air inlet assembly comprises an air inlet pipe, the air inlet pipe is arranged at one side of the bottom box, and a detachable filter screen is arranged at the air inlet of the air inlet pipe.
As still further aspects of the utility model: the second cooling assembly comprises a second evaporator, the second evaporator is arranged at the bottom of the second pre-cooling box, a stirring shaft is rotatably connected to the middle of the upper end and the middle of the lower end of the second pre-cooling box, and stirring blades are arranged at the positions of the stirring shaft in the second spiral coil.
As still further aspects of the utility model: the upper end face of the base is also provided with a refrigerating system, and the stirring shaft and the first evaporator are connected into the refrigerating system for circulation.
As still further aspects of the utility model: the stirring device comprises a stirring shaft, a rotating shaft, a driving belt, two belt pulleys, a driving motor and a driving motor, wherein the two belt pulleys are respectively and fixedly connected to the stirring shaft and the lower end of the rotating shaft, the driving belt is arranged between the two belt pulleys, and the driving motor is used for driving the rotating shaft to rotate is further arranged on one side of the lower end face of the base.
As still further aspects of the utility model: the diameter of the belt wheel at the lower end of the stirring shaft is larger than that of the belt wheel at the lower end of the rotating shaft.
As still further aspects of the utility model: and the ends of the input pipe and the output pipe, which are far away from the base, are respectively provided with a connecting flange.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the natural gas can be pre-cooled respectively through the first spiral coil and the second spiral coil when the natural gas pre-cooling device is used, and the transition is carried out through the first spiral coil, so that the deformation condition of the pipeline caused by the large temperature difference between the natural gas and the cooling liquid in the second pre-cooling box can be effectively avoided.
2. According to the utility model, through the stirring shaft and the stirring sheet, the cooling liquid in the second precooling box can be stirred during use, so that the temperature of the cooling liquid is uniformly distributed, the cooling effect on the second spiral coil is further improved, and the purpose of precooling natural gas is achieved.
3. According to the utility model, through the arrangement of the first spiral coil and the second spiral coil, the path length of natural gas passing through the first pre-cooling box and the second pre-cooling box can be effectively increased, the cooling time is prolonged, and a good cooling effect is achieved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic view of the back structure of the present utility model.
Fig. 3 is a schematic cross-sectional view of the present utility model.
Wherein: 1. a base; 2. an output pipe; 3. a second pre-cooling tank; 4. a first pre-cooling tank; 5. a refrigeration system; 6. an input tube; 7. a filter screen; 8. support legs; 9. a driving motor; 10. a transmission belt; 11. a belt wheel; 12. a fixing frame; 13. a second helical coil; 14. stirring sheets; 15. a second evaporator; 16. a stirring shaft; 17. a bottom box; 18. an air inlet pipe; 19. a fan blade; 20. a first evaporator; 21. a first helical coil; 22. and (3) rotating the shaft.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-3, in the embodiment of the utility model, the auxiliary precooling apparatus for natural gas liquefaction comprises a base 1, a first precooling tank 4 is arranged on one side of the upper end of the base 1, a second precooling tank 3 is arranged on the other side of the upper end of the base 1, cooling liquid is filled in the second precooling tank 3, supporting legs 8 fixedly connected with the base 1 are respectively arranged at the lower ends of the first precooling tank 4 and the second precooling tank 3, a first spiral coil 21 is arranged in the first precooling tank 4, an input pipe 6 is fixedly connected to the lower end of one side of the first precooling tank 4, which is far away from the second precooling tank 3, the bottom of the first spiral coil 21 is communicated with the input pipe 6, a second spiral coil 13 is arranged in the second precooling tank 3, an output pipe 2 is arranged at the lower end of one side of the second precooling tank 3, which is far away from the first precooling tank 4, an output pipe 2 is communicated with the lower end of the second spiral coil 13, a plurality of fixing frames 12 are further arranged at one side of the second precooling tank 3, and a plurality of fixing frames 12 are further arranged at the upper sides of the second precooling tank 4.
When the device is connected into a natural gas conveying pipeline through the input pipe 6 and the output pipe 2 in operation, when natural gas enters the first spiral coil 21, the first cooling component carries out transitional cooling on the first spiral coil 21 in an air cooling mode, so that the natural gas is initially cooled, and then enters the second spiral coil 13 to carry out secondary cooling in a heat exchange mode with cooling liquid, so that the aim of precooling is fulfilled.
The lower end of the first pre-cooling box 4 is fixedly connected with a bottom box 17, and a first cooling component for cooling the first spiral coil 21 is arranged in the bottom box 17; the first cooling assembly comprises a first evaporator 20, the first spiral coil 21 is arranged at the upper end of the bottom box 17, a rotary shaft 22 is rotatably connected in the middle of the lower end of the bottom box 17, the upper end of the rotary shaft 22 is fixedly connected with a fan blade 19, and an air inlet assembly for air inlet is further arranged on the bottom box 17; when the cooling device works, the rotating shaft 22 rotates to drive the fan blades 19 to rotate, wind power can be generated by the rotation of the fan blades 19, generated air current blows through the first evaporator 20 to take away cool air, so that the wind blown into the first pre-cooling box 4 is cool air, and the purpose of primarily cooling the first spiral coil 21 is achieved.
The air inlet assembly comprises an air inlet pipe 18, the air inlet pipe 18 is arranged at one side of the bottom box 17, and a detachable filter screen 7 is arranged at the air inlet of the air inlet pipe 18; when in use, the filter screen 7 can prevent dust from entering the first pre-cooling box 4, and meanwhile, the filter screen 7 can be detached, so that cleaning is convenient.
A second cooling component for cooling the second spiral coil 13 is arranged in the second pre-cooling box 3; the second cooling assembly comprises a second evaporator 15, the second evaporator 15 is arranged at the bottom of the second pre-cooling box 3, a stirring shaft 16 is rotatably connected at the middle of the upper end and the middle of the lower end of the second pre-cooling box 3, and stirring blades 14 are arranged at the positions of the stirring shaft 16 in the second spiral coil 13; the upper end face of the base 1 is also provided with a refrigerating system 5, and the stirring shaft 16 and the first evaporator 20 are connected into the refrigerating system 5 for circulation.
During operation, the second evaporator 15 can cool the cooling liquid in the second pre-cooling tank 3, and the stirring shaft 16 and the stirring piece 14 can stir the cooling liquid in the second pre-cooling tank 3, so that the temperature distribution of the cooling liquid is more uniform, and the heat exchange effect of the second spiral coil 13 and the cooling liquid can be improved.
The stirring device comprises a stirring shaft 16, a rotating shaft 22, two belt pulleys 11, a driving belt 10, a driving motor 9, a driving motor and a driving motor, wherein the two belt pulleys 11 are respectively fixedly connected to the lower ends of the stirring shaft 16 and the rotating shaft 22; the diameter of the belt wheel 11 at the lower end of the stirring shaft 16 is larger than that of the belt wheel 11 at the lower end of the rotating shaft 22.
When the stirring shaft 16 is in operation, the driving motor 9 can drive the rotating shaft 22 to rotate, the rotating shaft 22 can drive the belt pulley 11 at the lower end of the rotating shaft 22 to rotate, then the stirring shaft 16 can rotate under the transmission action of the transmission belt 10, and meanwhile, the diameter of the belt pulley 11 at the lower end of the stirring shaft 16 is larger than that of the belt pulley 11 at the lower end of the rotating shaft 22, so that the fan blades 19 can rotate at high speed and the stirring shaft 16 can rotate at low speed when in operation.
Example 2
The difference from example 1 is that: the one end that base 1 was kept away from to input tube 6 and output tube 2 all is equipped with flange, through the flange who sets up, can be convenient for insert in the natural gas line with input tube 6 and output tube 2, convenient to use.
The working principle of the utility model is as follows: when the cooling device works, the driving motor 9 can drive the rotating shaft 22 to rotate, the rotating shaft 22 rotates to drive the belt pulley 11 at the lower end of the rotating shaft 22 to rotate, then the stirring shaft 16 can rotate under the transmission action of the transmission belt 10, meanwhile, the diameter of the belt pulley 11 at the lower end of the stirring shaft 16 is larger than that of the belt pulley 11 at the lower end of the rotating shaft 22, the fan blades 19 can be enabled to rotate at a high speed during working, the stirring shaft 16 rotates at a low speed, the rotating shaft 22 rotates to drive the fan blades 19 to rotate, wind power can be generated by the rotation of the fan blades 19, generated air flows blow the first evaporator 20 to take away cold air, the air blown into the first pre-cooling box 4 is cold air, the purpose of primary cooling of the first spiral coil 21 is achieved, then the second spiral coil 13 can cool the cooling liquid inside the second pre-cooling box 3 in a heat exchange mode with the cooling liquid, meanwhile, the stirring shaft 16 and the stirring piece 14 arranged at the same time can stir the cooling liquid inside the second pre-cooling box 3, the temperature distribution of the cooling liquid is enabled to be more uniform, and the heat exchange effect of the second spiral coil 13 and the cooling liquid can be improved.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. Although the present disclosure describes embodiments in terms of one embodiment, not every embodiment is provided with only one embodiment, and the description is for clarity only, and those skilled in the art should recognize that the embodiments described in the disclosure may be combined appropriately to form other embodiments that will be understood by those skilled in the art.
Claims (8)
1. Auxiliary precooling equipment for natural gas liquefaction comprises a base (1), and is characterized in that: the novel pre-cooling device comprises a base (1), and is characterized in that a first pre-cooling box (4) is arranged on one side of the upper end of the base (1), a second pre-cooling box (3) is arranged on the other side of the upper end of the base (1), cooling liquid is filled in the second pre-cooling box (3), supporting legs (8) fixedly connected with the base (1) are arranged at the lower ends of the first pre-cooling box (4), a first spiral coil (21) is arranged in the first pre-cooling box (4), an input pipe (6) is fixedly connected to the lower end of one side, far away from the second pre-cooling box (3), of the first pre-cooling box, the input pipe (6) is communicated with the bottom of the first spiral coil (21), a second spiral coil (13) is arranged in the second pre-cooling box (3), an output pipe (2) is arranged at the lower end of one side, far away from the first pre-cooling box (4), of the second pre-cooling box (3), and a plurality of air outlet pipes (12) are arranged at the lower ends of the second pre-cooling box (3), and the upper end of the second pre-cooling box (13) is fixedly provided with a plurality of air outlet holes (12);
the lower end of the first pre-cooling box (4) is fixedly connected with a bottom box (17), and a first cooling component for cooling the first spiral coil (21) is arranged in the bottom box (17);
and a second cooling component for cooling the second spiral coil (13) is arranged in the second pre-cooling box (3).
2. The natural gas liquefaction auxiliary precooling equipment according to claim 1, wherein the first cooling assembly comprises a first evaporator (20), the first spiral coil (21) is arranged at the upper end of the bottom box (17), a rotating shaft (22) is rotatably connected in the middle of the lower end of the bottom box (17), a fan blade (19) is fixedly connected to the upper end of the rotating shaft (22), and an air inlet assembly for air inlet is further arranged on the bottom box (17).
3. The natural gas liquefaction assisting precooling equipment according to claim 2, wherein the air inlet assembly comprises an air inlet pipe (18), the air inlet pipe (18) is arranged at a position on one side of the bottom box (17), and a detachable filter screen (7) is arranged at a position of an air inlet of the air inlet pipe (18).
4. The natural gas liquefaction auxiliary precooling apparatus as claimed in claim 2, wherein the second cooling assembly comprises a second evaporator (15), the second evaporator (15) is arranged at the bottom of the second precooling tank (3), a stirring shaft (16) is rotatably connected at the middle of the upper end and the middle of the lower end of the second precooling tank (3), and stirring blades (14) are installed at the positions of the stirring shaft (16) in the second spiral coil (13).
5. The natural gas liquefaction auxiliary precooling equipment according to claim 4, wherein a refrigerating system (5) is further installed on the upper end face of the base (1), and the stirring shaft (16) and the first evaporator (20) are connected into the refrigerating system (5) for circulation.
6. The natural gas liquefaction auxiliary precooling equipment according to claim 5, further comprising two belt pulleys (11), wherein the two belt pulleys (11) are respectively and fixedly connected to the stirring shaft (16) and the lower end of the rotating shaft (22), a transmission belt (10) is installed between the two belt pulleys (11), and a driving motor (9) for driving the rotating shaft (22) to rotate is further arranged on one side of the lower end face of the base (1).
7. The natural gas liquefaction assisting precooling apparatus as claimed in claim 6, characterized in that the diameter of the pulley (11) at the lower end of the stirring shaft (16) is larger than the diameter of the pulley (11) at the lower end of the rotating shaft (22).
8. The natural gas liquefaction auxiliary precooling equipment according to claim 1, wherein the input pipe (6) and the output pipe (2) are provided with connecting flanges at the ends far away from the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321479974.3U CN219995693U (en) | 2023-06-09 | 2023-06-09 | Natural gas liquefaction auxiliary precooling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321479974.3U CN219995693U (en) | 2023-06-09 | 2023-06-09 | Natural gas liquefaction auxiliary precooling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219995693U true CN219995693U (en) | 2023-11-10 |
Family
ID=88620047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321479974.3U Active CN219995693U (en) | 2023-06-09 | 2023-06-09 | Natural gas liquefaction auxiliary precooling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219995693U (en) |
-
2023
- 2023-06-09 CN CN202321479974.3U patent/CN219995693U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219995693U (en) | Natural gas liquefaction auxiliary precooling equipment | |
| CN213956074U (en) | Novel gas cooler for compressor | |
| CN110822784A (en) | Environment-friendly food refrigeration equipment | |
| CN217357788U (en) | Energy-conserving effectual ice and water machine | |
| CN216815104U (en) | Cooling tower is used in aqueous ammonia production that practicality is high | |
| CN216409834U (en) | Precooling mechanism for high-temperature water cooling | |
| CN213631167U (en) | Cooling arrangement for lubricating oil production | |
| CN212375315U (en) | Cold treatment device for roller production | |
| CN2711538Y (en) | Spiral blade roller slag cooling machine | |
| CN209085170U (en) | A kind of jacket heat-preservation cooling tank | |
| CN113758145B (en) | Refrigeration equipment and method for natural gas liquefaction | |
| CN220852769U (en) | Cooling water device for food additive production | |
| CN216897894U (en) | Water process system for lithium bromide refrigerator in viscose production | |
| CN220248364U (en) | Heat abstractor of screw compressor | |
| CN217541152U (en) | Open-type air-cooled condensing unit | |
| CN219318708U (en) | Cooler for maintaining electronic product | |
| CN218722552U (en) | Cooling device of ice water machine | |
| CN216869251U (en) | High-efficiency energy-saving evaporative air cooling device | |
| CN210583724U (en) | Atmospheric and vacuum distillation device | |
| CN212340033U (en) | Inert gas cooler for ammonia production | |
| CN220818188U (en) | Water circulation cooler | |
| CN208536492U (en) | A kind of heat-transfer container that heat-transfer effect is good | |
| CN220269757U (en) | Cooling mechanism for corrugated paper production | |
| CN215853333U (en) | Automatic high-speed cooling conveying equipment for biomass particle production | |
| CN216653447U (en) | Polyimide film solvent recovery monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |