CN210319388U - Horizontal liquefied natural gas vaporizer capable of pneumatically defrosting - Google Patents
Horizontal liquefied natural gas vaporizer capable of pneumatically defrosting Download PDFInfo
- Publication number
- CN210319388U CN210319388U CN201920378867.9U CN201920378867U CN210319388U CN 210319388 U CN210319388 U CN 210319388U CN 201920378867 U CN201920378867 U CN 201920378867U CN 210319388 U CN210319388 U CN 210319388U
- Authority
- CN
- China
- Prior art keywords
- shell
- natural gas
- heat exchange
- tube
- liquefied natural
- 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
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a horizontal liquefied natural gas vaporizer that can pneumatically defrost, which comprises a housin, both ends are connected tube sheet and pipe case around the casing, the pipe case that is located the front end has the liquefied natural gas inlet, the pipe case that is located the rear end has the natural gas outlet, be equipped with the heat exchange tube around lining up in the casing, the heat exchange tube is the S-shaped, heat exchange tube horizontal structure part is equipped with the heat exchanger fin outward, evenly be equipped with baffle and the board of turning back along casing length direction in the casing in turn, baffle and the board of turning back divide into a plurality of U-shaped spaces with casing inside, the top of casing is equipped with air inlet and gas outlet respectively around the baffle, the outer air inlet in casing top is equipped with the aspiration pump between gas outlet, the pipeline that the import of aspiration pump is connected through dehydrating unit and. The utility model discloses gasification efficiency is high, can restrain the heat exchanger fin and appear frosting phenomenon, guarantees that gasification goes on smoothly, and convenient operation improves work efficiency.
Description
Technical Field
The utility model relates to a liquefied natural gas gasification field, concretely relates to horizontal liquefied natural gas vaporizer that can pneumatically defrost.
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 has the characteristics of no color, no odor, no toxicity, no corrosiveness and the like, the volume of the liquefied natural gas is about 1/625 of the volume of the same amount of gaseous natural gas, the liquefied natural gas is suitable for various conveying modes, the mass of the liquefied natural gas is only about 45% of the same volume of water, the combustion heat release is large, the pollution generated in the combustion process is extremely small, and the liquefied natural gas is an advanced environment-friendly energy source. Before being delivered to users, the liquefied natural gas needs to pass through a corresponding gasification device, and is converted from a liquid state to a gaseous state and then is delivered into a pipeline. Because the gasification process needs to absorb a large amount of heat from the outside, the gasification part of the air-temperature type liquefied natural gas gasifier is easy to have the phenomenon of temperature drop, a low-temperature condition easy to frost is provided, the frosting hinders the heat exchange of the heat exchange plates, and further the gasification capacity of the device is inhibited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a horizontal liquefied natural gas vaporizer that can pneumatically defrost that gasification efficiency is high, can in time defrost.
The technical scheme of the utility model as follows:
the utility model relates to a horizontal liquefied natural gas vaporizer that can pneumatically defrost, its characterized in that: the shell is a horizontal cylindrical barrel, shell flanges are arranged at the front end and the rear end of the shell, the shell flanges are connected with a tube plate, the tube plate is connected with a tube box flange, the tube box flange is connected with a tube box, the tube box at the front end is provided with a liquid natural gas inlet, and the tube box at the rear end is provided with a natural gas outlet; a heat exchange tube is arranged in the shell, and the front end and the rear end of the heat exchange tube respectively pass through the tube plate and lead to the front tube box and the rear tube box; partitions and turn-back plates are uniformly and alternately arranged in the shell along the length direction of the shell, the partitions and the turn-back plates divide the interior of the shell into a plurality of U-shaped spaces, enough space is reserved between the bottom of the partitions and the bottom of the interior of the shell, the side walls of the turn-back plates are fixedly connected with the inner wall of the shell, and the heat exchange tubes penetrate through the partitions and the turn-back plates; an air inlet is formed in the top of the shell in front of the partition plate, an air outlet is formed in the top of the shell behind the partition plate, an air pump is arranged outside the top of the shell between the air inlet and the air outlet, a pipeline connected with an inlet of the air pump penetrates through the dehumidifying device to be connected with the air outlet, and a pipeline connected with an outlet of the air pump penetrates through the heating device to be connected with the air inlet; the heat exchange tube is S-shaped, the horizontal structure part of the heat exchange tube is arranged between the partition plate and the turn-back plate, and the outer wall of the horizontal structure part of the heat exchange tube is provided with heat exchange fins which radiate outwards from the center of the heat exchange tube; the shell is arranged below the partition plate, and a water outlet is formed in the water outlet and provided with a valve A.
The defrosting device is characterized in that a defrosting sensor is arranged beside the heat exchange fins on the inner wall of the shell, a control module is arranged outside the shell, the defrosting sensor is connected with the control module through a wire, and the control module is respectively connected with the air suction pump and the heating device through wires.
And a liquid level sensor is arranged on the lower side of the inner wall of the shell and is connected with the valve A through a wire.
The top of the shell is provided with an exhaust port in front of the turning-back plate, and the exhaust port is provided with a valve B.
Supporting seats are arranged at the front end and the rear end of the bottom of the shell; the bottom of the tube box is provided with a supporting seat.
And the inner wall of the shell is provided with a filter cover on the air inlet and the air outlet.
The utility model discloses the beneficial technological effect who has: the utility model divides the inside of the shell into a plurality of U-shaped spaces through the baffle plates and the turning plates, and the heating gas continuously provides heat to be absorbed by the gasification of the liquefied natural gas through circulating flow in the U-shaped spaces, thereby ensuring the gasification efficiency of the liquefied natural gas; whether frosting appears on the heat exchanger is detected through the defrosting sensor, when the frosting phenomenon is detected, the heating grade of the heating device is improved through the control module, the temperature of hot air entering the shell is improved, the frosting phenomenon is removed, and the natural gas gasification is guaranteed to be smoothly carried out.
Drawings
The technical solution of the present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic cross-sectional view of a horizontal structure portion of the heat exchange tube of the present invention.
In the figure: the method comprises the following steps of 1-shell, 2-shell flange, 3-tube plate, 4-tube box flange, 5-tube box, 6-liquid natural gas inlet, 7-natural gas outlet, 8-heat exchange tube, 9-partition plate, 10-turning plate, 11-air inlet, 12-air outlet, 13-air pump, 14-dehumidifying device, 15-heating device, 16-heat exchange sheet, 17-water outlet, 18-valve A, 19-defrosting sensor, 20-control module, 21-liquid level sensor, 22-air outlet, 23-valve B, 24-lead, 25-support seat and 26-filter cover.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1 and fig. 2, the utility model relates to a horizontal liquefied natural gas vaporizer that can pneumatically defrost, its characterized in that: the shell is a horizontal cylindrical barrel, shell flanges 2 are arranged at the front end and the rear end of the shell 1, the shell flanges 2 are connected with a tube plate 3, the tube plate 3 is connected with a tube box flange 4, the tube box flange 4 is connected with a tube box 5, the tube box 5 positioned at the front end is provided with a liquid natural gas inlet 6, and the tube box 5 positioned at the rear end is provided with a natural gas outlet 7; a heat exchange tube 8 is arranged in the shell 1, and the front end and the rear end of the heat exchange tube 8 respectively penetrate through the tube plate 3 and are led to the front tube box 5 and the rear tube box 5; the inside of the shell 1 is uniformly and alternately provided with partition plates 9 and turn-back plates 10 along the length direction of the shell 1, the inside of the shell 1 is divided into a plurality of U-shaped spaces by the partition plates 9 and the turn-back plates 10, enough space is reserved between the bottom of the partition plate 9 and the bottom of the inside of the shell 1, the side walls of the turn-back plates 10 are fixedly connected with the inner wall of the shell 1, and the heat exchange tubes 8 penetrate through the partition plates 9 and the turn-back plates 10; an air inlet 11 is formed in the top of the shell 1 in front of the partition plate 9, an air outlet 12 is formed in the top of the shell 1 behind the partition plate 9, an air pump 13 is arranged outside the top of the shell 1 and between the air inlet 11 and the air outlet 12, a pipeline connected with an inlet of the air pump 13 penetrates through the dehumidifying device 14 to be connected with the air outlet 12, and a pipeline connected with an outlet of the air pump 13 penetrates through the heating device 15 to be connected with the air inlet 11; the heat exchange tube 8 is S-shaped, the horizontal structure part of the heat exchange tube 8 is arranged between the partition plate 9 and the return plate 10, the outer wall of the horizontal structure part of the heat exchange tube 8 is provided with heat exchange fins 16, and the heat exchange fins 16 radiate outwards along the axial direction of the heat exchange tube 8; the shell 1 is provided with a water outlet 17 below the partition plate 9, and the water outlet 17 is provided with a valve A18.
A defrosting sensor 19 is arranged on the inner wall of the shell 1 beside the heat exchange fins, a control module 20 is arranged outside the shell 1, the defrosting sensor 19 is connected with the control module 20 through a lead 24, and the control module 20 is respectively connected with the air extracting pump 13 and the heating device 15 through leads 24.
The lower side of the inner wall of the shell 1 is provided with a liquid level sensor 21, and the liquid level sensor 21 is connected with a valve A18 through a lead 24.
The top of the shell 1 is provided with an exhaust port 22 in front of the return plate 10, and the exhaust port 22 is provided with a valve B23.
The front end and the rear end of the bottom of the shell 1 are provided with supporting seats; the bottom of the tube box 5 is provided with a support seat 25.
The inner wall of the casing 1 is provided with a filter housing 26 on the air inlet 11 and the air outlet 12.
The working principle of the example is as follows:
liquefied natural gas enters the channel box 5 through the liquid natural gas inlet 6, passes through the shell 1 through the heat exchange pipe 8, is continuously gasified in the process, and the gasified natural gas enters the other channel box 5 and leaves from the natural gas outlet 7. The inside of the shell 1 is divided into a plurality of U-shaped spaces by the partition plates 9 and the turning-back plates 10, hot air which is formed after air driven by the air pump 13 is heated by the heating device 15 enters the inside of the shell 1 from the air inlet 11, the hot air enters the bottom of the inside of the shell 1 along the partition plates 9 and then enters the top of the inside of the shell 1 along the turning-back plates 10 and leaves the shell 1 from the air outlet 12, and the hot air returns to the air pump 13 after moisture is absorbed by the dehumidifying device 14. The hot air passes through the horizontal structure part of the plurality of heat exchange pipes 8 in the circulation process of the shell 1 to provide heat required by the gasification of the liquefied natural gas. Because the hot air forms the circulation flow, can improve energy utilization efficiency, reduce device use cost.
When the defrosting sensor 19 senses that the frosting occurs on the heat exchanging plate 16, the defrosting sensor 19 sends a corresponding signal to the control module 20, and the control module 20 controls the heating device 15 to increase the heating level until the temperature of the hot air is high enough to eliminate the condition that the frosting occurs on the heat exchanging plate 16.
The defrosted waste water falls to the bottom of the interior of the housing 1, and when the defrosted waste water accumulates to a certain extent, the liquid level sensor sends a control signal to open the valve a18, and the waste water leaves the housing 1 through the water outlet 17.
Before use, the operator may open valve B23 to vent the exhaust gas in order to replace the gas in the housing 1.
The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.
Claims (6)
1. The utility model provides a horizontal liquefied natural gas vaporizer that can pneumatically defrost which characterized in that: the shell is a horizontal cylindrical barrel, shell flanges are arranged at the front end and the rear end of the shell, the shell flanges are connected with a tube plate, the tube plate is connected with a tube box flange, the tube box flange is connected with a tube box, the tube box at the front end is provided with a liquid natural gas inlet, and the tube box at the rear end is provided with a natural gas outlet; a heat exchange tube is arranged in the shell, and the front end and the rear end of the heat exchange tube respectively pass through the tube plate and lead to the front tube box and the rear tube box; partitions and turn-back plates are uniformly and alternately arranged in the shell along the length direction of the shell, the partitions and the turn-back plates divide the interior of the shell into a plurality of U-shaped spaces, enough space is reserved between the bottom of the partitions and the bottom of the interior of the shell, the side walls of the turn-back plates are fixedly connected with the inner wall of the shell, and the heat exchange tubes penetrate through the partitions and the turn-back plates; an air inlet is formed in the top of the shell in front of the partition plate, an air outlet is formed in the top of the shell behind the partition plate, an air pump is arranged outside the top of the shell between the air inlet and the air outlet, a pipeline connected with an inlet of the air pump penetrates through the dehumidifying device to be connected with the air outlet, and a pipeline connected with an outlet of the air pump penetrates through the heating device to be connected with the air inlet; the heat exchange tube is S-shaped, the horizontal structure part of the heat exchange tube is arranged between the partition plate and the turn-back plate, and the outer wall of the horizontal structure part of the heat exchange tube is provided with heat exchange fins which radiate outwards from the center of the heat exchange tube; the shell is arranged below the partition plate, and a water outlet is formed in the water outlet and provided with a valve A.
2. The horizontal type liquefied natural gas vaporizer capable of being pneumatically defrosted according to claim 1, wherein: the defrosting device is characterized in that a defrosting sensor is arranged beside the heat exchange fins on the inner wall of the shell, a control module is arranged outside the shell, the defrosting sensor is connected with the control module through a wire, and the control module is respectively connected with the air suction pump and the heating device through wires.
3. The horizontal type liquefied natural gas vaporizer capable of being pneumatically defrosted according to claim 1, wherein: and a liquid level sensor is arranged on the lower side of the inner wall of the shell and is connected with the valve A through a wire.
4. The horizontal type liquefied natural gas vaporizer capable of being pneumatically defrosted according to claim 1, wherein: the top of the shell is provided with an exhaust port in front of the turning-back plate, and the exhaust port is provided with a valve B.
5. The horizontal type liquefied natural gas vaporizer capable of being pneumatically defrosted according to claim 1, wherein: supporting seats are arranged at the front end and the rear end of the bottom of the shell; the bottom of the tube box is provided with a supporting seat.
6. The horizontal type liquefied natural gas vaporizer capable of being pneumatically defrosted according to claim 1, wherein: and the inner wall of the shell is provided with a filter cover on the air inlet and the air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920378867.9U CN210319388U (en) | 2019-03-25 | 2019-03-25 | Horizontal liquefied natural gas vaporizer capable of pneumatically defrosting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920378867.9U CN210319388U (en) | 2019-03-25 | 2019-03-25 | Horizontal liquefied natural gas vaporizer capable of pneumatically defrosting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210319388U true CN210319388U (en) | 2020-04-14 |
Family
ID=70122928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920378867.9U Expired - Fee Related CN210319388U (en) | 2019-03-25 | 2019-03-25 | Horizontal liquefied natural gas vaporizer capable of pneumatically defrosting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210319388U (en) |
-
2019
- 2019-03-25 CN CN201920378867.9U patent/CN210319388U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201492952U (en) | Flue gas heat source heat pipe-type evaporation device of byproduct in ammonia process of flue gas desulfurization | |
| CN101775824A (en) | Air dehumidifier, solar energy water heater, refrigerator, battery set and steam box | |
| CN201837266U (en) | High-efficient vacuumizing condensation unit | |
| CN201954994U (en) | Industrial steam recycling device | |
| CN102748963B (en) | Closed water cooling system with double-evaporative cooling pressure | |
| CN104896882B (en) | A kind of combined dryer | |
| CN210319388U (en) | Horizontal liquefied natural gas vaporizer capable of pneumatically defrosting | |
| CN211853965U (en) | Steam boiler waste heat recovery device | |
| CN202757502U (en) | Hot medium self-circulating heat exchanger with adjustable load | |
| CN219252173U (en) | Condensation dehumidification flue gas whitening system | |
| CN218348758U (en) | Waste heat recovery device and recovery system for outdoor unit of air conditioner | |
| CN207197002U (en) | A kind of high heat exchange efficiency parallel flow overhead evaporator | |
| CN214792230U (en) | Energy-saving drying equipment for corrugated medium paper production | |
| CN201106965Y (en) | Condenser with heat reclamation function | |
| CN211384963U (en) | Hydrogenation ware heat reclamation device | |
| CN201340216Y (en) | Device for recovering excess heat of exhaust of tripolycyanamide reaction | |
| CN102221191A (en) | Secondary steam generator | |
| CN102967035A (en) | Device for recycling heat emission of refrigerating air-conditioning outdoor unit | |
| CN102260558B (en) | Marsh gas purifier | |
| CN202792675U (en) | Generation device of waste heat type ammonia water absorption refrigerator | |
| CN107642981B (en) | Superconductive solar heat pump drying system | |
| CN215982643U (en) | Boiler with waste heat recycling device | |
| CN101419006A (en) | Condenser with thermal recovery function | |
| CN201382400Y (en) | Boiler heat exchanger | |
| CN202082899U (en) | Secondary steam generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200414 Termination date: 20210325 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |