CN217383527U - Liquefied natural gas cold box precooling apparatus - Google Patents
Liquefied natural gas cold box precooling apparatus Download PDFInfo
- Publication number
- CN217383527U CN217383527U CN202220321609.9U CN202220321609U CN217383527U CN 217383527 U CN217383527 U CN 217383527U CN 202220321609 U CN202220321609 U CN 202220321609U CN 217383527 U CN217383527 U CN 217383527U
- Authority
- CN
- China
- Prior art keywords
- precooling
- liquid
- natural gas
- air
- cavity
- 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
Images
Abstract
The utility model relates to a liquefied natural gas production technical field, in particular to liquefied natural gas cold box precooling apparatus, the power distribution box comprises a box body, a baffle is vertically arranged in the box body, the baffle divides the interior of the box body into an air cooling cavity and a water cooling cavity from left to right in proper order, the air cooling cavity is internally provided with an air cooling precooling apparatus, the water cooling precooling apparatus is arranged in the water cooling cavity, a natural gas delivery pump and a controller are fixedly arranged on the left side wall of the box body, the input end of the natural gas delivery pump is connected with a liquefied gas input tube, the output end of the natural gas delivery pump is connected with a liquefied gas output tube, one end of the liquefied gas output tube, which is far away from the natural gas delivery pump, penetrates into the box body and sequentially penetrates through the air cooling cavity and the water cooling cavity; the utility model discloses an air-cooled mode improves the gradual cooling that the precooling effect realized liquefied natural gas simultaneously earlier, avoids precooling liquid temperature to cross when low direct precooling, and the surface difference in temperature of liquefied gas output tube is too big and takes place to break.
Description
Technical Field
The utility model relates to a liquefied natural gas production technical field, in particular to liquefied natural gas cold box precooling apparatus.
Background
Liquefied natural gas, the main component of which is methane, is recognized as the cleanest fossil energy source on earth. The liquefied natural gas is colorless, tasteless, nontoxic and noncorrosive, the volume of the liquefied natural gas is about 1/625 of the volume of the same amount of gaseous natural gas, and the mass of the liquefied natural gas is only about 45 percent of the same volume of water. The liquefied natural gas cold box is a heat exchange device used for realizing heat exchange between raw natural gas and a refrigerant in a liquefied natural gas device.
When the existing precooling device for liquefied natural gas is used for precooling liquefied natural gas, a very large temperature difference often exists between precooling liquid for precooling liquefied natural gas and a precooling container for storing the liquefied natural gas, so that the manufacturing cost of the precooling liquid with very low temperature is very high, and the precooling container is very easy to break due to too large temperature difference.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a liquefied natural gas cold box precooling apparatus realizes liquefied natural gas's gradual cooling, when avoiding precooling liquid temperature to hang down direct precooling excessively, the surface difference in temperature of liquefied gas output tube is too big and takes place to break.
In order to achieve the above purpose, the technical solution of the present invention is as follows:
the utility model provides a liquefied natural gas cold box precooling apparatus, includes the box, the vertical baffle that is provided with in the box, the baffle will air-cooled chamber and water-cooling chamber are from left to right divided into in proper order to the box inside, the air-cooled intracavity is equipped with air-cooled precooling apparatus, be equipped with water-cooling precooling apparatus in the water-cooling chamber, fixed natural gas delivery pump and the controller of being provided with on the left side wall of box, the input of natural gas delivery pump is connected with the liquefied gas input tube, the output of natural gas delivery pump is connected with liquefied gas output tube, liquefied gas output tube keeps away from the one end of natural gas delivery pump penetrates in the box, and pass in proper order air-cooled chamber and water-cooling chamber, the equal electric connection of air-cooled precooling apparatus, water-cooling precooling apparatus and natural gas delivery pump the controller.
Specifically, the air-cooled precooling apparatus includes refrigerator, hair-dryer and the cover is located annular air outlet seat on the liquefied gas output tube, the output of refrigerator is just right the air inlet end of hair-dryer, the air-cooled intracavity is provided with the support frame, the support frame is used for placing annular air outlet seat, be provided with annular air cavity in the annular air outlet seat, the air outlet end of hair-dryer through the air-supply line with annular air cavity is linked together, seted up a plurality of intercommunications on the interior arc surface of annular air outlet seat annular air outlet cavity, be equipped with a plurality of fresh air inlet and scattered wind hole on the inner wall of air-cooled cavity, the fresh air inlet is close to the refrigerator setting.
Specifically, a sealing ring is arranged at the joint of the air inlet pipe and the annular air outlet seat.
Specifically, the water-cooling precooling apparatus includes that the precooling liquid sprays the seat, precooling liquid collecting vat and fixed set up in the precooling liquid pump at box top, the precooling liquid spray the seat fixed set up in the water-cooling chamber top, the precooling liquid sprays and is provided with the precooling liquid chamber in the seat, the output of precooling liquid pump pass through precooling liquid pipeline with precooling liquid chamber intercommunication, a plurality of intercommunications have been seted up to the bottom that the precooling liquid sprayed the seat precooling liquid spout in precooling liquid chamber, precooling liquid spout is just right the liquefied gas output tube sets up, precooling liquid collecting vat is just right precooling liquid sprays the seat set up in the water-cooling chamber bottom.
Specifically, the input end of the precooling liquid pump is fixedly connected with a liquid inlet pipe, and a liquid inlet electromagnetic valve is arranged on the liquid inlet pipe.
Specifically, a liquid discharge port is formed in the bottom of the precooling liquid collecting tank, a liquid discharge pipe is fixedly connected to the liquid discharge port, the liquid discharge pipe penetrates through the box body and extends to the outside of the box body, and a liquid discharge electromagnetic valve is arranged on the liquid discharge pipe.
The beneficial effects of the utility model are that:
the controller controls the natural gas conveying pump to convey the liquefied natural gas from the liquefied gas input pipe to the liquefied gas output pipe, and when the liquefied natural gas in the liquefied gas output pipe passes through the air cooling cavity, the air cooling precooling device in the air cooling cavity is used for carrying out preliminary air cooling; when the liquefied natural gas passes through the water-cooling cavity, secondary spraying water-cooling is carried out on the liquefied natural gas through a water-cooling precooling device, and precooling treatment is completed; the utility model discloses an air-cooled mode improves the gradual cooling that the precooling effect realized liquefied natural gas simultaneously earlier, avoids precooling liquid temperature to cross when low direct precooling, and the surface difference in temperature of liquefied gas output tube is too big and takes place to break.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Reference numerals: a box body 1; an air-cooled precooling device 2; a refrigerator 21; a blower 22; an air inlet pipe 23; an annular air outlet seat 24; an annular air chamber 25; an air outlet 26; a water-cooling precooling device 3; a pre-cooling liquid pump 31; a pre-cooling liquid spray seat 32; a pre-cooling liquid spout 33; a pre-cooling liquid collection tank 34; a natural gas delivery pump 4; a liquefied gas input pipe 5; a liquefied gas output pipe 6; a support frame 7; a liquid inlet pipe 8; a liquid inlet electromagnetic valve 9; a drain pipe 10; a liquid discharge solenoid valve 11; a controller 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, a pre-cooling device for a liquefied natural gas cold box comprises a box body 1, a partition board is vertically arranged in the box body 1, the inner part of the box body 1 is sequentially divided into an air cooling cavity and a water cooling cavity by the partition plate from left to right, an air cooling precooling device 2 is arranged in the air cooling cavity, a water-cooling precooling device 3 is arranged in the water-cooling cavity, a natural gas delivery pump 4 and a controller 12 are fixedly arranged on the left side wall of the box body 1, the input end of the natural gas delivery pump 4 is connected with a liquefied gas input pipe 5, the output end of the natural gas delivery pump 4 is connected with a liquefied gas output pipe 6, one end of the liquefied gas output pipe 6, which is far away from the natural gas delivery pump 4, penetrates into the box body 1 and sequentially penetrates through the air cooling cavity and the water cooling cavity, the air-cooled precooling device 2, the water-cooled precooling device 3 and the natural gas conveying pump 4 are all electrically connected with the controller 12.
The controller 12 controls the natural gas delivery pump 4 to deliver the liquefied natural gas from the liquefied gas input pipe 5 to the liquefied gas output pipe 6, and when the liquefied natural gas in the liquefied gas output pipe 6 passes through the air cooling cavity, the liquefied natural gas is subjected to preliminary air cooling and cooling through the air cooling precooling device 2 in the air cooling cavity; when the liquefied natural gas passes through the water-cooling cavity, secondary spraying water-cooling is carried out on the liquefied natural gas through the water-cooling precooling device 3, and precooling treatment is completed; the utility model discloses an air-cooled mode improves the gradual cooling that the precooling effect realized liquefied natural gas simultaneously earlier, avoids precooling liquid temperature to cross when low direct precooling, and the surface difference in temperature of liquefied gas output tube 6 is too big and takes place to break.
As shown in fig. 1, the air-cooled pre-cooling device 2 includes a refrigerator 21, a blower 22 and an annular air outlet seat 24 sleeved on the liquefied gas output pipe 6, an output end of the refrigerator 21 is opposite to an air inlet end of the blower 22, a support frame 7 is arranged in the air-cooled cavity, the support frame 7 is used for placing the annular air outlet seat 24, an annular air cavity 25 is arranged in the annular air outlet seat 24, the air outlet end of the blower 22 is communicated with the annular air cavity 25 through an air inlet pipe 23, a plurality of air outlet holes 26 communicated with the annular air cavity 25 are formed in an inner arc surface of the annular air outlet seat 24, a plurality of air inlet holes and air outlet holes are formed in an inner wall of the air-cooled cavity, and the air inlet holes are arranged close to the refrigerator 21; in this embodiment, the controller 12 starts the refrigerator 21 and the blower 22, and the cold air is delivered into the annular air cavity 25 through the air inlet pipe 23, and then flows out through the air outlet hole 26 to perform air cooling heat dissipation on the liquefied gas output pipe 6.
As shown in fig. 1, a sealing ring is arranged at the joint of the air inlet pipe 23 and the annular air outlet seat 24; in this embodiment, prevent cold wind from flowing out from the junction through setting up the sealing washer, lead to the air-cooled effect reduction of exhaust vent 26 department.
As shown in fig. 1, the water-cooling pre-cooling device 3 includes a pre-cooling liquid spray seat 32, a pre-cooling liquid collecting tank 34, and a pre-cooling liquid pump 31 fixedly disposed at the top of the tank 1, the pre-cooling liquid spray seat 32 is fixedly disposed at the top of the water-cooling cavity, a pre-cooling liquid cavity is disposed in the pre-cooling liquid spray seat 32, an output end of the pre-cooling liquid pump 31 is communicated with the pre-cooling liquid cavity through a pre-cooling liquid pipeline, a plurality of pre-cooling liquid nozzles 33 communicated with the pre-cooling liquid cavity are disposed at the bottom of the pre-cooling liquid spray seat 32, the pre-cooling liquid nozzles 33 are disposed right opposite to the liquefied gas output pipe 6, and the pre-cooling liquid collecting tank 34 is disposed right opposite to the pre-cooling liquid spray seat 32 at the bottom of the water-cooling liquid cavity; in this embodiment, the pre-cooling liquid is delivered to the pre-cooling liquid spray seat 32 by the pre-cooling liquid pump 31, and then sprayed out by the pre-cooling liquid spray nozzle 33, so as to perform water cooling treatment on the liquefied gas output pipe 6, and the pre-cooling liquid collecting tank 34 is used for collecting the sprayed pre-cooling liquid.
As shown in fig. 1, an input end of the pre-cooling liquid pump 6 is fixedly connected with a liquid inlet pipe 8, and a liquid inlet electromagnetic valve 9 is arranged on the liquid inlet pipe 8; in this embodiment, the pre-cooling liquid can be supplemented in time by arranging the liquid inlet pipe 8.
As shown in fig. 1, a liquid discharge port is formed at the bottom of the pre-cooling liquid collecting tank 34, the liquid discharge port is fixedly connected with a liquid discharge pipe 10, the liquid discharge pipe 10 penetrates through the box body 1 and extends to the outside of the box body 1, and a liquid discharge electromagnetic valve 11 is arranged on the liquid discharge pipe 10; in this embodiment, the pre-cooling liquid in the pre-cooling liquid collecting tank 34 can be discharged in time through the liquid discharge pipe 10, so as to prevent overflow.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (6)
1. The utility model provides a liquefied natural gas cold box precooling apparatus, includes box (1), its characterized in that: a baffle plate is vertically arranged in the box body (1), the baffle plate divides the interior of the box body (1) into an air cooling cavity and a water cooling cavity from left to right in sequence, an air-cooled precooling device (2) is arranged in the air-cooled cavity, a water-cooled precooling device (3) is arranged in the water-cooled cavity, a natural gas delivery pump (4) and a controller (12) are fixedly arranged on the left side wall of the box body (1), the input end of the natural gas delivery pump (4) is connected with a liquefied gas input pipe (5), the output end of the natural gas delivery pump (4) is connected with a liquefied gas output pipe (6), one end of the liquefied gas output pipe (6) far away from the natural gas delivery pump (4) penetrates into the box body (1) and sequentially penetrates through the air cooling cavity and the water cooling cavity, the air-cooled precooling device (2), the water-cooled precooling device (3) and the natural gas conveying pump (4) are all electrically connected with the controller (12).
2. The lng cold box precooling apparatus of claim 1, wherein: the air-cooled precooling device (2) comprises a refrigerator (21), a blower (22) and an annular air outlet seat (24) sleeved on the liquefied gas output pipe (6), the output end of the refrigerator (21) is over against the air inlet end of the blower (22), a support frame (7) is arranged in the air-cooled cavity, the support frame (7) is used for placing the annular air outlet seat (24), an annular air cavity (25) is arranged in the annular air outlet seat (24), the air outlet end of the blower (22) is communicated with the annular air cavity (25) through an air inlet pipe (23), a plurality of air outlet holes (26) communicated with the annular air cavity (25) are formed in the inner arc surface of the annular air outlet seat (24), a plurality of air inlet holes and air dispersing holes are formed in the inner wall of the air-cooled cavity, and the air inlet holes are close to the refrigerator (21).
3. The lng cold box precooling apparatus of claim 2, wherein: and a sealing ring is arranged at the joint of the air inlet pipe (23) and the annular air outlet seat (24).
4. The LNG cooler precooling apparatus of claim 1, wherein: water-cooling precooling apparatus (3) including precooling liquid spray seat (32), precooling liquid collecting vat (34) with fixed set up in precooling liquid pump (31) at box (1) top, precooling liquid spray seat (32) fixed set up in the water-cooling chamber top, precooling liquid is provided with precooling liquid chamber in spray seat (32), the output of precooling liquid pump (31) through precooling liquid pipeline with precooling liquid chamber intercommunication, a plurality of intercommunications have been seted up to the bottom of precooling liquid spray seat (32) precooling liquid spout (33) in precooling liquid chamber, precooling liquid spout (33) are just right liquefied gas output tube (6) set up, precooling liquid collecting vat (34) are just right precooling liquid spray seat (32) set up in water-cooling chamber bottom.
5. The LNG cooler precooling apparatus of claim 4, wherein: the input end of the precooling liquid pump (31) is fixedly connected with a liquid inlet pipe (8), and a liquid inlet electromagnetic valve (9) is arranged on the liquid inlet pipe (8).
6. The LNG cold box precooling apparatus of claim 4, wherein: a liquid outlet is formed in the bottom of the precooling liquid collecting tank (34), a liquid discharge pipe (10) is fixedly connected with the liquid outlet, the liquid discharge pipe (10) penetrates through the box body (1) and extends to the outside of the box body (1), and a liquid discharge electromagnetic valve (11) is arranged on the liquid discharge pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220321609.9U CN217383527U (en) | 2022-02-17 | 2022-02-17 | Liquefied natural gas cold box precooling apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220321609.9U CN217383527U (en) | 2022-02-17 | 2022-02-17 | Liquefied natural gas cold box precooling apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217383527U true CN217383527U (en) | 2022-09-06 |
Family
ID=83099325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220321609.9U Active CN217383527U (en) | 2022-02-17 | 2022-02-17 | Liquefied natural gas cold box precooling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217383527U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489983A (en) * | 2023-12-29 | 2024-02-02 | 江苏常氢科技工程研究院有限公司 | Station hydrogen storage tank and hydrogen storage tank conveying device |
-
2022
- 2022-02-17 CN CN202220321609.9U patent/CN217383527U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117489983A (en) * | 2023-12-29 | 2024-02-02 | 江苏常氢科技工程研究院有限公司 | Station hydrogen storage tank and hydrogen storage tank conveying device |
| CN117489983B (en) * | 2023-12-29 | 2024-04-02 | 江苏常氢科技工程研究院有限公司 | Station hydrogen storage tank and hydrogen storage tank conveying device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217383527U (en) | Liquefied natural gas cold box precooling apparatus | |
| CN208447269U (en) | A kind of cold tank arrangement of water dispenser | |
| CN213648341U (en) | Cooling device is used in processing of PE pipe | |
| CN212421966U (en) | Cooling device for copper pipe heat insulation cotton | |
| CN210664028U (en) | Novel environment-friendly evaporative cooler based on microbial deodorization | |
| CN218807860U (en) | Cargo container transport case that possesses fresh-keeping function | |
| CN209317359U (en) | A kind of flue gas purification device removes white haze device with chimney | |
| CN206281361U (en) | A kind of special cooling system of intermediate frequency furnace | |
| CN217173671U (en) | Energy-saving automatic wine flowing equipment | |
| CN218821275U (en) | High-efficient cooling device of liquid feed | |
| CN221066962U (en) | Cooling device is used in insulating material production | |
| CN217855461U (en) | Desulfurizing device | |
| CN210035462U (en) | Temperature and pressure reducer | |
| CN213041074U (en) | Online line spouts deashing combination formula heat exchanger | |
| CN216977643U (en) | Centrifugal high-efficient cooling tower splash device | |
| CN108731166A (en) | A kind of positive pressure conveying air cooling-down humidification apparatus | |
| CN210420071U (en) | Cooling device for heat treatment processing of mechanical pipe | |
| CN221062229U (en) | Tail gas treatment device for aluminum sulfate reaction kettle | |
| CN215063096U (en) | Humidity-adjustable refrigerating box | |
| CN218794971U (en) | RCO exhaust treatment device | |
| CN211848097U (en) | Copper pipe processing annealing cooling device | |
| CN214701854U (en) | Air cooling tower for air separation | |
| CN216644732U (en) | Improved generation argon pump return line | |
| CN215428186U (en) | Cooling system of desulfurizing tank | |
| CN219976118U (en) | LNG storage tank cold insulation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |