CN215522869U - Liquefied natural gas gasification device - Google Patents
Liquefied natural gas gasification device Download PDFInfo
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- CN215522869U CN215522869U CN202121164126.4U CN202121164126U CN215522869U CN 215522869 U CN215522869 U CN 215522869U CN 202121164126 U CN202121164126 U CN 202121164126U CN 215522869 U CN215522869 U CN 215522869U
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Abstract
The utility model discloses a liquefied natural gas gasification device, wherein a compression box is arranged at the lower part of a heat exchange tube, a driving box is arranged at one side of the compression box, a crankshaft is movably connected in the driving box, a driven belt wheel is arranged at one end of the crankshaft, a piston is arranged in a guide cylinder, a connecting rod is hinged at one side of the piston, the other end of the connecting rod is hinged with the shaft diameter of the crankshaft, and one end of the guide cylinder is communicated with the compression box; one end of the output shaft of the motor is connected with a driving belt wheel, and the driving belt wheel is connected with a driven belt wheel through a transmission belt; one side of the compression box is provided with a pressure retaining valve. The compression box is arranged at the lower part of the heat exchange tube, the driving box is arranged on one side of the compression box, the motor drives the crankshaft in the driving box to reciprocate through belt transmission, the piston is driven to press air into the compression box, the temperature of the air in the compression box is increased after the air is compressed, the heat exchange tube is subjected to heat exchange, and particularly the heat exchange temperature of the initial section of the heat exchange tube is ensured.
Description
Technical Field
The utility model belongs to the technical field of gasifiers, and particularly relates to a liquefied natural gas gasification device.
Background
The principle of the air-temperature gasifier is as follows: when the liquefied natural gas flows through the heat exchange tubes, the liquid medium is gasified into gas by absorbing heat in the air through the heat exchange tubes and the fins, and the gas is heated to raise the temperature so as to be close to the normal temperature. The influence by temperature is great when the air temperature formula gasifier uses, but its advantage of air temperature formula gasification is that other expenses are less than other gasifiers far away, just so, air temperature formula gasifier receives user's favor increasingly, its core part is heat transfer device, obtain powerful heat energy in the space as little as possible from the atmosphere, at present, when current gasification equipment used, liquefied natural gas entered the pipe from the natural gas and gets into the heat exchange tube, at the initial stage of heat exchange tube, because the gasification time quantum, easily cause the temperature of the initial stage of heat exchange tube lower, form frost outside the heat exchange tube, the gasification effect of initial stage natural gas has further been influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects in the prior art and provides a liquefied natural gas gasification device.A compression box is arranged at the lower part of a heat exchange tube, a driving box is arranged at one side of the compression box, a motor drives a crankshaft in the driving box to do reciprocating motion through belt transmission to drive a piston to press air into the compression box, the temperature of the air in the compression box is increased after the air is compressed, the heat exchange tube is subjected to heat exchange, and particularly the heat exchange temperature of the initial section of the heat exchange tube is ensured.
In order to achieve the purpose, the utility model adopts the technical scheme that:
a liquefied natural gas gasification device comprises a plurality of heat exchange tubes and heat exchange fins which are arranged outside the heat exchange tubes and are in a divergent shape, the heat exchange tubes are connected in series through communicating tubes, the lower portions of the heat exchange tubes at the head ends are connected with a natural gas inlet tube, the lower portions of the heat exchange tubes at the tail ends are connected with a natural gas outlet tube, the lower portions of the heat exchange tubes are provided with compression boxes, the lower portions of the compression boxes are provided with a plurality of support legs, one sides of the compression boxes are provided with driving boxes, the insides of the driving boxes are movably connected with crankshafts, one ends of the crankshafts are provided with driven pulleys, one sides of the driving boxes are connected with guide cylinders in a penetrating manner, the insides of the guide cylinders are provided with pistons, one sides of the pistons are hinged with connecting rods, the other ends of the connecting rods are hinged with the shaft diameters of the crankshafts, the upper portions of the guide cylinders are provided with gas inlet tubes, and one ends of the guide cylinders are communicated with the compression boxes; a motor is arranged on one side of the lower part of the driving box, one end of an output shaft of the motor is connected with a driving belt wheel, and the driving belt wheel is connected with a driven belt wheel through a transmission belt; the motor drives the crankshaft in the driving box to rotate through belt transmission, the crankshaft drives the piston to reciprocate through the connecting rod, when the piston moves to one side of the air inlet pipe, the air inlet pipe is communicated with the guide cylinder, air enters the guide cylinder, when the piston moves to the other side of the air inlet pipe, the air in the guide cylinder is pressed into the compression box and is compressed, the temperature of the compressed air rises, heat exchange is carried out on the heat exchange pipe, and particularly the heat exchange temperature of the initial section of the heat exchange pipe is ensured; one side of the compression box is provided with a pressure retaining valve, the pressure retaining valve comprises a valve body, a retaining ring arranged in the valve body and a valve core arranged on one side of the retaining ring, two sides of the retaining ring are provided with tapers, one side of the valve core is provided with a taper matched with the retaining ring, one side of the retaining ring is provided with a connecting pipe, one side of the valve body is provided with an end cover, one side of the end cover is provided with a spring, and the other end of the spring is fixedly connected with the valve core; when the inside air pressure of compression case reached the default, the pressure of air was greater than the elasticity of spring, and the air backs down the case, and the air in the compression case passes through the connecting pipe pressure release and discharges, and when the air pressure in the compression case equaled the elasticity of spring, the case resets under the effect of spring elasticity, carries out the pressurize to the air in the compression case, has guaranteed that the temperature of air keeps invariable in the compression case to the heat transfer effect of heat exchange tube has been guaranteed.
As a further optimization of the technical scheme, one side of the guide cylinder is provided with a one-way valve, one end of the one-way valve is communicated with the compression box, the one-way valve prevents air in the compression box from flowing backwards through the guide cylinder, and the air pressure in the compression box is ensured.
As a further preferred option of this technical scheme, intake pipe upper portion is equipped with the filter screen, and the filter screen filters the impurity in the air, has slowed down the wearing and tearing of piston.
As a further preferred option of this technical scheme, the compression case outside is equipped with the heating wire, and heating wire one side is equipped with heat preservation (not shown in the figure), and the heating wire carries out the boosting to the compression case, is convenient for use in cold environment, and the heat loss of compression case has been reduced to the heat preservation.
As a further preferred option of the technical scheme, a guide rod is arranged on one side of the valve core, one end of the guide rod penetrates through an end cover, the spring is sleeved outside the guide rod, an external thread is arranged on the outer ring of the end cover, and an internal thread matched with the external thread of the end cover is arranged inside one end of the valve body; the end cover is rotated to adjust the screwing depth of the end cover into the valve body so as to adjust the elasticity of the spring to the valve core, further adjust the pressure of air in the compression box and conveniently adjust the air temperature according to the state of the gasifier.
As a further preference of the technical scheme, one side of the upper part of the connecting pipe is provided with a gas distribution pipe, one side of the gas distribution pipe is provided with a plurality of gas outlet branch pipes, two sides of each gas outlet branch pipe are provided with a plurality of blowing pipes, one end of each blowing pipe is provided with a blowing head, and the blowing heads face the heat exchange pipes; the air that utilizes the pressure release in the compression case preheats and jets the heat exchange tube, has not only improved the utilization ratio of heat energy, has further avoided the heat exchange tube surface to frost moreover.
As a further preferred aspect of the present technical solution, the blowing pipe is a bamboo joint pipe, which facilitates adjustment of an angle of the blowing pipe as required.
As a further optimization of the technical scheme, the upper part of the compression box is provided with a plurality of stand columns, the top parts of the stand columns are connected through a top plate, the middle part of the top plate is provided with an axial flow fan, the axial flow fan further accelerates the fluidity of air, and the gasification efficiency of the gasifier is improved.
The utility model has the beneficial effects that:
1) the compression box is arranged at the lower part of the heat exchange tube, the driving box is arranged on one side of the compression box, the motor drives the crankshaft in the driving box to reciprocate through belt transmission, the piston is driven to press air into the compression box, the temperature of the air in the compression box is increased after the air is compressed, the heat exchange tube is subjected to heat exchange, and particularly the heat exchange temperature of the initial section of the heat exchange tube is ensured.
2) One side of the guide cylinder is provided with a one-way valve, one end of the one-way valve is communicated with the compression box, and the one-way valve prevents air in the compression box from flowing backwards through the guide cylinder, so that the air pressure in the compression box is ensured.
3) The filter screen is arranged on the upper portion of the air inlet pipe, impurities in the air are filtered by the filter screen, and abrasion of the piston is slowed down.
4) The compression case outside is equipped with the heating wire, and heating wire one side is equipped with the heat preservation, and the heating wire carries out the auxiliary heating to the compression case, is convenient for use in cold environment, and the heat loss of compression case has been reduced to the heat preservation.
5) A guide rod is arranged on one side of the valve core, one end of the guide rod penetrates through the end cover, the spring is sleeved outside the guide rod, an external thread is arranged on the outer ring of the end cover, and an internal thread matched with the external thread of the end cover is arranged inside one end of the valve body; the end cover is rotated to adjust the screwing depth of the end cover into the valve body so as to adjust the elasticity of the spring to the valve core, further adjust the pressure of air in the compression box and conveniently adjust the air temperature according to the state of the gasifier.
6) A gas distribution pipe is arranged on one side of the upper part of the connecting pipe, a plurality of gas outlet branch pipes are arranged on one side of the gas distribution pipe, a plurality of blowing pipes are arranged on two sides of the gas outlet branch pipes, a blowing head is arranged at one end of each blowing pipe, and the blowing head faces to the heat exchange pipe; the air that utilizes the pressure release in the compression case preheats and jets the heat exchange tube, has not only improved the utilization ratio of heat energy, has further avoided the heat exchange tube surface to frost moreover.
7) The blowing pipe is a bamboo joint pipe, so that the angle of the blowing pipe can be adjusted conveniently as required.
8) The upper portion of the compression box is provided with a plurality of stand columns, the top portions of the stand columns are connected through a top plate, the middle portion of the top plate is provided with an axial flow fan, the axial flow fan further accelerates the flowability of air, and the gasification efficiency of the gasifier is improved.
Drawings
FIG. 1 is a schematic structural diagram of a liquefied natural gas gasification apparatus according to the present invention.
FIG. 2 is a schematic structural diagram of a liquefied natural gas gasification device with heat exchange tubes removed.
FIG. 3 is a schematic view showing the internal structure of a driving box in a liquefied natural gas gasification apparatus according to the present invention.
FIG. 4 is a schematic view showing the connection between a distribution pipe and an outlet branch pipe in a liquefied natural gas gasification apparatus according to the present invention.
FIG. 5 is an exploded view of a pressure retention valve in a liquefied natural gas gasification apparatus according to the present invention.
In the figure: 1. a heat exchange pipe; 2. natural gas inlet pipe; 3. a natural gas outlet pipe; 4. a communicating pipe; 5. a support leg; 6. a compression box; 7. a one-way valve; 8. a drive box; 9. an air inlet pipe; 10. filtering with a screen; 11. a guide cylinder; 12. a piston; 13. a connecting rod; 14. a crankshaft; 15. a driven pulley; 16. a motor; 17. a driving pulley; 18. a transmission belt; 19. a pressure retaining valve; 20. a valve body; 21. a baffle ring; 22. a valve core; 23. a guide bar; 24. a spring; 25. an end cap; 26. a connecting pipe; 27. a gas distribution pipe; 28. an air outlet branch pipe; 29. a blowing pipe; 30. a column; 31. a top plate; 32. an axial flow fan.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to fig. 1 to 5, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used for convenience of description only, and do not indicate or imply that the devices or elements referred to must have a specific orientation, a specific orientation configuration and operation, and thus, are not to be construed as limiting the present invention.
A liquefied natural gas gasification device comprises a plurality of heat exchange tubes 1 and heat exchange fins arranged outside the heat exchange tubes 1 in a divergent shape, the heat exchange tubes 1 are connected in series through a communicating tube 4, the lower part of the heat exchange tube 1 at the head end is connected with a natural gas inlet tube 2, the lower part of the heat exchange tube 1 at the tail end is connected with a natural gas outlet tube 3, the lower part of the heat exchange tube 1 is provided with a compression box 6, the lower part of the compression box 6 is provided with a plurality of supporting legs 5, a driving box 8 is arranged at one side of the compression box 6, a crankshaft 14 is movably connected in the driving box 8, one end of the crankshaft 14 is provided with a driven belt wheel 15, one side of the driving box 8 is connected with a guide cylinder 11 in a through way, a piston 12 is arranged in the guide cylinder 11, one side of the piston 12 is hinged with a connecting rod 13, the other end of the connecting rod 13 is hinged with the shaft diameter of a crankshaft 14, an air inlet pipe 9 is arranged at the upper part of the guide cylinder 11, and one end of the guide cylinder 11 is communicated with the compression box 6; a motor 16 is arranged on one side of the lower part of the driving box 8, one end of an output shaft of the motor 16 is connected with a driving belt wheel 17, and the driving belt wheel 17 is connected with a driven belt wheel 15 through a transmission belt 18; the motor 16 drives the crankshaft 14 in the box 8 to rotate through a belt transmission belt 18, the crankshaft 14 drives the piston 12 to reciprocate through a connecting rod 13, when the piston 12 moves to one side of the air inlet pipe 9, the air inlet pipe 9 is communicated with the guide cylinder 11, air enters the guide cylinder 11, when the piston 12 moves to the other side of the air inlet pipe 9, the air in the guide cylinder 11 is pressed into the compression box 6, the air in the compression box 6 is compressed, the temperature of the compressed air is increased, the heat exchange pipe 1 is subjected to heat exchange, and particularly the heat exchange temperature of the initial section of the heat exchange pipe 1 is ensured; a pressure retaining valve 19 is arranged on one side of the compression box 6, the pressure retaining valve 19 comprises a valve body 20, a retaining ring 21 arranged inside the valve body 20 and a valve core 22 arranged on one side of the retaining ring 21, two sides of the retaining ring 21 are provided with tapers, one side of the valve core 22 is provided with a taper matched with the retaining ring 21, one side of the retaining ring 21 is provided with a connecting pipe 26, one side of the valve body 20 is provided with an end cover 25, one side of the end cover 25 is provided with a spring 24, and the other end of the spring 24 is fixedly connected with the valve core 22; when the inside air pressure of compression box 6 reached the default, the pressure of air was greater than spring 24's elasticity, the air backed down case 22, the air in the compression box 6 was discharged through the pressure release of connecting pipe 26, when the air pressure in the compression box 6 equals spring 24's elasticity, case 22 resets under the effect of spring 24 elasticity, the air to in the compression box 6 carries out the pressurize, the temperature of having guaranteed air in the compression box 6 keeps invariable, thereby the heat transfer effect of heat exchange tube 1 has been guaranteed.
In this embodiment, a one-way valve 7 is arranged on one side of the guide cylinder 11, one end of the one-way valve 7 is communicated with the compression box 6, the one-way valve 7 prevents air in the compression box 6 from flowing backwards through the guide cylinder 11, and air pressure in the compression box 6 is ensured.
In this embodiment, a filter screen 10 is disposed at the upper portion of the air inlet pipe 9, and the filter screen 10 filters impurities in the air, so that the abrasion of the piston 12 is reduced.
In this embodiment, the outside of compression case 6 is equipped with the heating wire, and heating wire one side is equipped with heat preservation (not shown in the figure), and the heating wire carries out the auxiliary heating to compression case 6, is convenient for use in cold environment, and the heat loss of compression case 6 has been reduced to the heat preservation.
In this embodiment, a guide rod 23 is disposed on one side of the valve core 22, one end of the guide rod 23 penetrates through an end cover 25, the spring 24 is sleeved outside the guide rod 23, an external thread is disposed on an outer ring of the end cover 25, and an internal thread matched with the external thread of the end cover 25 is disposed inside one end of the valve body 20; the end cover 25 is rotated to adjust the screwing depth of the end cover 25 into the valve body 20, so as to adjust the elastic force of the spring 24 on the valve core 22, further adjust the pressure of the air in the compression box 6, and facilitate the adjustment of the air temperature according to the state of the gasifier.
In this embodiment, a gas distribution pipe 27 is arranged on one side of the upper part of the connecting pipe 26, a plurality of gas outlet branch pipes 28 are arranged on one side of the gas distribution pipe 27, a plurality of blowing pipes 29 are arranged on two sides of the gas outlet branch pipes 28, and a blowing head is arranged at one end of each blowing pipe 29 and faces the heat exchange pipe 1; the heat exchange tube 1 is sprayed by preheating air decompressed in the compression box 6, so that the utilization rate of heat energy is improved, and the outer surface of the heat exchange tube 1 is further prevented from frosting.
In this embodiment, the blowing pipe 29 is a bamboo joint pipe, so that the angle of the blowing pipe 29 can be adjusted as required.
In this embodiment, the upper portion of the compression box 6 is provided with a plurality of upright posts 30, the tops of the upright posts 30 are connected through a top plate 31, the middle portion of the top plate 31 is provided with an axial flow fan 32, and the axial flow fan 32 further accelerates the fluidity of air and improves the gasification efficiency of the gasifier.
The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the utility model as defined in the accompanying claims.
Claims (8)
1. A liquefied natural gas gasification device comprises a plurality of heat exchange tubes and heat exchange fins which are arranged outside the heat exchange tubes and are in a divergent shape, wherein the heat exchange tubes are connected in series through communicating tubes, the lower part of the heat exchange tube at the head end is connected with a natural gas inlet tube, and the lower part of the heat exchange tube at the tail end is connected with a natural gas outlet tube; a motor is arranged on one side of the lower part of the driving box, one end of an output shaft of the motor is connected with a driving belt wheel, and the driving belt wheel is connected with a driven belt wheel through a transmission belt; compression case one side is equipped with the pressure retaining valve, the pressure retaining valve includes the valve body, set up with the inside fender ring of valve body and set up in the case that keeps off ring one side, keep off ring both sides and all be equipped with the tapering, case one side be equipped with keep off ring complex tapering, keep off one side of ring and be equipped with the connecting pipe, valve body one side is equipped with the end cover, and end cover one side is equipped with the spring, the other end and the case fixed connection of spring.
2. The LNG gasification apparatus of claim 1, wherein a check valve is provided at one side of the guide cylinder, and one end of the check valve is connected to the compression box.
3. The lng gasifier of claim 1, wherein a strainer is disposed at an upper portion of the inlet pipe.
4. The liquefied natural gas gasification apparatus according to claim 1, wherein an electric heating wire is provided outside the compression box, and an insulating layer is provided on one side of the electric heating wire.
5. The liquefied natural gas gasification device according to claim 1, wherein a guide rod is disposed on one side of the valve core, one end of the guide rod penetrates through an end cap, the spring is sleeved outside the guide rod, an outer ring of the end cap is provided with an external thread, and an internal thread matched with the external thread of the end cap is disposed inside one end of the valve body.
6. The liquefied natural gas gasification apparatus according to claim 1, wherein a distribution pipe is provided on one side of an upper portion of the connection pipe, a plurality of outlet branch pipes are provided on one side of the distribution pipe, a plurality of injection pipes are provided on both sides of the outlet branch pipes, and an injection head is provided at one end of the injection pipe, the injection head facing the heat exchange pipe.
7. The LNG gasification apparatus of claim 6, wherein the injection pipe is a joint pipe.
8. The LNG gasification apparatus of any one of claims 1 to 7, wherein the compression box is provided with a plurality of columns at an upper portion thereof, tops of the columns are connected by a top plate, and an axial flow fan is provided at a middle portion of the top plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164126.4U CN215522869U (en) | 2021-05-27 | 2021-05-27 | Liquefied natural gas gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121164126.4U CN215522869U (en) | 2021-05-27 | 2021-05-27 | Liquefied natural gas gasification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215522869U true CN215522869U (en) | 2022-01-14 |
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ID=79805550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121164126.4U Active CN215522869U (en) | 2021-05-27 | 2021-05-27 | Liquefied natural gas gasification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215522869U (en) |
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2021
- 2021-05-27 CN CN202121164126.4U patent/CN215522869U/en active Active
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