Demisting device of LNG (Liquefied Natural Gas) gasifier

Abstract

The utility model relates to the technical field of LNG (Liquefied Natural Gas) vaporizer demisting, in particular to an LNG vaporizer demisting device, which improves the demisting quality and efficiency and is convenient for cleaning water drops on the outer wall of a vaporizer during demisting. Comprising a gasifier; the device further comprises a main body mechanism, an air inlet mechanism, an air distribution mechanism, a heating mechanism, a lifting mechanism and a scraping mechanism, the air inlet mechanism is installed on the main body mechanism, the air distribution mechanism is installed on the main body mechanism, the heating mechanism is installed on the air inlet mechanism, the lifting mechanism is installed in the main body mechanism, and the scraping mechanism is installed on the lifting mechanism. The main body mechanism assists the gas distribution mechanism to heat the two ends of the gasifier, the gas inlet mechanism conveniently blows air to the gasifier, the heating mechanism heats the blown air of the gas inlet mechanism, the gas distribution mechanism conveniently distributes the blown air of the gas inlet mechanism, and the lifting mechanism drives the scraping mechanism to blow warm air to demist and scrape the outer wall of the gasifier.

Description

Technical Field

[0001] The utility model relates to the technical field of LNG vaporizer demisting, in particular to a LNG vaporizer demisting device. Background Art

[0002] In cities where natural gas pipelines cannot be used for gas supply, LNG (Liquefied Natural Gas) has become the main gas source or transitional gas source. It is also the supplementary gas source or peak-shaving gas source for many cities that use natural gas pipelines for gas supply. Before natural gas is exported, LNG needs to be gasified. Among them, LNG air-temperature vaporizers are the main gasification facilities for LNG gasification stations to supply gas to cities. However, existing LNG air-temperature vaporizers are severely frozen, which seriously affects the gasification efficiency.

[0003] The existing LNG vaporizer defogger technology, for example, the prior art with application number CN202321106821.4, includes a defogger box, a box body, a mesh plate, a slope, a drainage trough, an air guide plate, a heating mechanism, a warm air pipe, a heating component, an air supply pipe, an exhaust mechanism, an exhaust pipe, an exhaust component and an LNG air-temperature vaporizer. A heating mechanism is arranged at the bottom of the defogger box, and an exhaust mechanism is arranged at the top. Warm air is blown into the box body through the heating mechanism. The warm air flows upward and contacts the LNG air-temperature vaporizer, driving the mist outside the LNG air-temperature vaporizer to flow upward, and finally discharged from the box body through the exhaust mechanism.

[0004] However, when the prior art heats the vaporizer, the lower part and the upper part of the vaporizer are heated unevenly, and the warm air temperature decreases after heat exchange and demisting with the bottom end of the vaporizer, so that the demisting effect above the vaporizer is low. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an LNG vaporizer demisting device which improves the quality and efficiency of demisting and facilitates cleaning of water drops on the outer wall of the vaporizer during demisting.

[0006] The utility model discloses a LNG vaporizer demisting device, comprising a vaporizer; further comprising a main body mechanism, an air intake mechanism, an air separation mechanism, a heating mechanism, a lifting mechanism and a scraping mechanism, wherein the air intake mechanism is mounted on the main body mechanism, the air separation mechanism is mounted on the main body mechanism, the heating mechanism is mounted on the air intake mechanism, the lifting mechanism is mounted in the main body mechanism, and the scraping mechanism is mounted on the lifting mechanism, the main body mechanism assists the air separation mechanism to heat both ends of the vaporizer, the air intake mechanism is convenient for blowing air to the vaporizer, the heating mechanism heats the air blown by the air intake mechanism, the air separation mechanism is convenient for air separation treatment of the air blown by the air intake mechanism, and the lifting mechanism drives the scraping mechanism to blow warm air to the outer wall of the vaporizer for demisting and scraping; the main body mechanism assists the air separation mechanism to heat both ends of the vaporizer, the air intake mechanism is convenient for blowing air to the vaporizer, the heating mechanism heats the air blown by the air intake mechanism, and the efficiency and quality of demisting are improved, the air separation mechanism is convenient for air separation treatment of the air blown by the air intake mechanism, and the uniformity of demisting and blowing is improved, and the lifting mechanism drives the scraping mechanism to blow warm air to the outer wall of the vaporizer for demisting and scraping.

[0007] Preferably, the main body mechanism includes a demister box and two partitions, the two partitions are installed on the inner wall of the demister box, the vaporizer is installed on the two partitions, and the two partitions are provided with air outlets; through the air outlets on the two partitions, the gas separation mechanism can evenly heat and demist the vaporizer.

[0008] Preferably, the air intake mechanism includes an air intake cylinder, a wind cylinder, a motor frame, fan blades and a first motor. The air intake cylinder is installed on the outer wall of the defogger box through the wind cylinder, the motor frame is installed on the inner wall of the air intake cylinder, the fan blades are rotatably installed on the motor frame with the same rotating shaft, the first motor is installed on the motor frame, and the output end of the first motor is connected to the rotating shaft of the fan blades; by turning on the first motor to drive the fan blades to rotate, the outside air is passed through the air intake cylinder and the wind cylinder into the air distribution mechanism and the scraping mechanism, and then the vaporizer is evenly heated and defogged.

[0009] Preferably, the air distribution mechanism includes two air distribution boxes, an air outlet and two air distribution pipes, the two air distribution boxes are installed at the top and bottom ends of the interior of the defogger box, the air outlet is installed on the two air distribution boxes, one end of the two air distribution pipes is installed on the wind tube, and the other end of the two air distribution pipes is connected to the two air distribution boxes; the warm air in the wind tube is transported to the air distribution box through the air distribution pipe, and the warm air is blown to the top and bottom of the vaporizer through the air outlet for heating and defogger.

[0010] Preferably, the heating mechanism includes a heat exchange cylinder, a heat exchange tube, a heating box, a heating plate, a water pump, a water inlet pipe and a return pipe. The heat exchange cylinder is installed on the outer wall of the wind tube, the heat exchange tube is spirally installed in the heat exchange cylinder, the heating box is installed on the outer wall of the defogger box, the heating plate is installed at the bottom end of the heating box, the water pump is installed on the outer wall of the heating box, one end of the water inlet pipe is installed on the water pump, the other end of the water inlet pipe is connected to one end of the heat exchange tube, one end of the return pipe is installed at the other end of the heat exchange tube, and the other end of the return pipe is installed on the heating box; first, water is added into the heating box, and the water is heated by turning on the heating plate, and the water in the heating box is allowed to enter the heat exchange tube through the water inlet pipe by turning on the water pump, and the warm air in the wind tube is heated through the heat exchange tube to improve the efficiency of heating and defoggering, and the water after heat exchange flows back to the heating box through the return pipe.

[0011] Preferably, the lifting mechanism includes a mounting frame, a lead screw, a guide rod, a sliding plate and a second motor. The mounting frame is mounted on the inner wall of the defogger box, the lead screw is rotatably mounted on the mounting frame, the guide rod is mounted on the mounting frame, a slide groove is provided on the mounting frame, the sliding plate is slidably mounted in the slide groove of the mounting frame, the sliding plate is slidably mounted on the guide rod, and the second motor is mounted on the top of the mounting frame, the output end of the second motor is connected to the lead screw, and the sliding plate is threadedly matched with the lead screw; the lead screw is driven to rotate by turning on the second motor, and the sliding plate is driven to slide on the guide rod through the threaded relationship, thereby adjusting the height of the scraping mechanism to perform defogger at different heights of the vaporizer.

[0012] Preferably, the scraping mechanism includes a scraper, a warm air pipe and a warm air head, the scraper is mounted on a sliding plate, the warm air pipe is mounted on the sliding plate, the warm air head is mounted on the warm air pipe, and the warm air pipe is connected to the wind tube through a hose; the defogger water droplets on the outer wall of the vaporizer are scraped by the scraper to improve the efficiency of defogger, the warm air in the wind tube is added to the warm air pipe through the hose, and the vaporizer is blown and heated by the warm air head to improve the efficiency and quality of defogger.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the two ends of the vaporizer are heated by the main body mechanism assisting the air separation mechanism, the air intake mechanism is convenient for blowing air to the vaporizer, the heating mechanism heats the air blown by the air intake mechanism, and the efficiency and quality of defogger are improved; the air separation mechanism is convenient for separating the air blown by the air intake mechanism, and the uniformity of defogger blowing is improved; the lifting mechanism drives the scraping mechanism to blow warm air to the outer wall of the vaporizer for defogger and scraping. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the axonometric structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the first front section axonometric structure of the utility model;

[0016] Figure 3It is a first front cross-sectional structural schematic diagram of the utility model;

[0017] Figure 4 It is a second front cross-sectional structural schematic diagram of the utility model;

[0018] Figure 5 It is a schematic diagram of the top-view cross-section axonometric structure of the utility model;

[0019] Figure 6 It is a second front section axonometric structural schematic diagram of the utility model;

[0020] Markings in the attached drawings: 01, main body; 11, defog box; 12, partition; 13, vaporizer; 02, air intake mechanism; 21, air intake cylinder; 22, air cylinder; 23, motor frame; 24, fan blades; 25, first motor; 03, air distribution mechanism; 31, air distribution box; 32, air outlet; 33, air distribution pipe; 04, heating mechanism; 41, heat exchange cylinder; 42, heat exchange tube; 43, heating box; 44, heating plate; 45, water pump; 46, water inlet pipe; 47, water return pipe; 05, lifting mechanism; 51, mounting frame; 52, screw; 53, guide rod; 54, sliding plate; 55, second motor; 06, scraping mechanism; 61, scraper; 62, warm air pipe; 63, warm air head. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the utility model, the utility model will be described more comprehensively below with reference to the relevant drawings. The utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0022] Example 1

[0023] like Figure 2 and Figure 6 As shown, the LNG vaporizer demisting device includes a vaporizer 13, and also includes a main body mechanism 01, an air intake mechanism 02, an air separation mechanism 03, a heating mechanism 04, a lifting mechanism 05 and a scraping mechanism 06, the air intake mechanism 02 is installed on the main body mechanism 01, the air separation mechanism 03 is installed on the main body mechanism 01, the heating mechanism 04 is installed on the air intake mechanism 02, the lifting mechanism 05 is installed in the main body mechanism 01, and the scraping mechanism 06 is installed on the lifting mechanism 05;

[0024] The main body mechanism 01 assists the air separation mechanism 03 to heat the two ends of the vaporizer 13, the air intake mechanism 02 is convenient for blowing air to the vaporizer 13, the heating mechanism 04 heats the air blown by the air intake mechanism 02, the air separation mechanism 03 is convenient for separating the air blown by the air intake mechanism 02, and the lifting mechanism 05 drives the scraping mechanism 06 to blow warm air to the outer wall of the vaporizer 13 for demisting and scraping;

[0025] The main body 01 includes a demister box 11 and two baffles 12, the two baffles 12 are mounted on the inner wall of the demister box 11, the vaporizer 13 is mounted on the two baffles 12, and the two baffles 12 are provided with air outlets;

[0026] The air intake mechanism 02 includes an air intake cylinder 21, a wind cylinder 22, a motor frame 23, a fan blade 24 and a first motor 25. The air intake cylinder 21 is mounted on the outer wall of the defogger box 11 through the wind cylinder 22. The motor frame 23 is mounted on the inner wall of the air intake cylinder 21. The fan blade 24 is rotatably mounted on the motor frame 23 with the same rotating shaft. The first motor 25 is mounted on the motor frame 23. The output end of the first motor 25 is connected to the rotating shaft of the fan blade 24.

[0027] The air distribution mechanism 03 includes two air distribution boxes 31, an air outlet 32 ​​and two air distribution pipes 33. The two air distribution boxes 31 are installed at the top and bottom of the interior of the demister box 11, the air outlet 32 ​​is installed on the two air distribution boxes 31, one end of the two air distribution pipes 33 is installed on the wind tube 22, and the other end of the two air distribution pipes 33 is connected to the two air distribution boxes 31;

[0028] The heating mechanism 04 includes a heat exchange cylinder 41, a heat exchange tube 42, a heating box 43, a heating plate 44, a water pump 45, a water inlet pipe 46 and a water return pipe 47. The heat exchange cylinder 41 is installed on the outer wall of the wind tube 22, the heat exchange tube 42 is spirally installed in the heat exchange cylinder 41, the heating box 43 is installed on the outer wall of the demisting box 11, the heating plate 44 is installed at the bottom end of the heating box 43, the water pump 45 is installed on the outer wall of the heating box 43, one end of the water inlet pipe 46 is installed on the water pump 45, and the other end of the water inlet pipe 46 is connected to one end of the heat exchange tube 42, one end of the return pipe 47 is installed on the other end of the heat exchange tube 42, and the other end of the return pipe 47 is installed on the heating box 43;

[0029] By turning on the first motor 25 to drive the fan blades 24 to rotate, the outside air is then passed through the air inlet tube 21 and the wind tube 22 into the air distribution mechanism 03 and the scraping mechanism 06, and then the vaporizer 13 is evenly heated and defogged, and the warm air in the wind tube 22 is transported to the air distribution box 31 through the air distribution pipe 33, and the top and bottom of the vaporizer 13 are heated and defogged through the air outlet 32. First, water is added into the heating box 43, and the water is heated by turning on the heating plate 44. By turning on the water pump 45, the water in the heating box 43 enters the heat exchange tube 42 through the water inlet pipe 46, and the warm air in the wind tube 22 is heated by the heat exchange tube 42 to improve the efficiency of heating and defoggering. The water after heat exchange flows back to the heating box 43 through the return pipe 47.

[0030] Example 2

[0031] like Figure 2 , Figure 4 and Figure 5As shown, the LNG vaporizer demisting device includes a vaporizer 13, and also includes a main body mechanism 01, an air intake mechanism 02, an air separation mechanism 03, a heating mechanism 04, a lifting mechanism 05 and a scraping mechanism 06, the air intake mechanism 02 is installed on the main body mechanism 01, the air separation mechanism 03 is installed on the main body mechanism 01, the heating mechanism 04 is installed on the air intake mechanism 02, the lifting mechanism 05 is installed in the main body mechanism 01, and the scraping mechanism 06 is installed on the lifting mechanism 05;

[0032] The main body mechanism 01 assists the air separation mechanism 03 to heat the two ends of the vaporizer 13, the air intake mechanism 02 is convenient for blowing air to the vaporizer 13, the heating mechanism 04 heats the air blown by the air intake mechanism 02, the air separation mechanism 03 is convenient for separating the air blown by the air intake mechanism 02, and the lifting mechanism 05 drives the scraping mechanism 06 to blow warm air to the outer wall of the vaporizer 13 for demisting and scraping;

[0033] The lifting mechanism 05 includes a mounting frame 51, a lead screw 52, ​​a guide rod 53, a sliding plate 54 and a second motor 55. The mounting frame 51 is mounted on the inner wall of the defogger box 11, the lead screw 52 is rotatably mounted on the mounting frame 51, the guide rod 53 is mounted on the mounting frame 51, a slide groove is provided on the mounting frame 51, the sliding plate 54 is slidably mounted in the slide groove of the mounting frame 51, the sliding plate 54 is slidably mounted on the guide rod 53, the second motor 55 is mounted on the top end of the mounting frame 51, the output end of the second motor 55 is connected to the lead screw 52, ​​and the sliding plate 54 is threadedly matched with the lead screw 52;

[0034] The scraping mechanism 06 includes a scraper 61, a warm air pipe 62 and a warm air head 63. The scraper 61 is mounted on the sliding plate 54, the warm air pipe 62 is mounted on the sliding plate 54, the warm air head 63 is mounted on the warm air pipe 62, and the warm air pipe 62 is connected to the air cylinder 22 through a hose.

[0035] The second motor 55 is turned on to drive the lead screw 52 to rotate, and the sliding plate 54 is driven to slide on the guide rod 53 through the threaded relationship, thereby adjusting the height of the scraping mechanism 06 to perform defogger at different heights of the vaporizer 13. The defogger water droplets on the outer wall of the vaporizer 13 are scraped by the scraper 61 to improve the defogger efficiency. The warm air in the wind tube 22 is added to the warm air pipe 62 through the hose, and the vaporizer 13 is blown and heated by the warm air head 63 to improve the defogger efficiency and quality.

[0036] like Figures 1 to 6As shown, the LNG vaporizer defogger of the utility model, when working, drives the fan blade 24 to rotate by turning on the first motor 25, and then the outside air enters the gas distribution mechanism 03 and the scraping mechanism 06 through the air inlet cylinder 21 and the wind cylinder 22, and then the vaporizer 13 is evenly heated and defogged, and the warm air in the wind cylinder 22 is transported to the gas distribution box 31 through the air distribution pipe 33, and the top and bottom of the vaporizer 13 are heated and defogged by blowing warm air through the air outlet 32. First, water is added into the heating box 43, and the water is heated by turning on the heating plate 44, and the water in the heating box 43 is allowed to enter the heat exchange pipe 42 through the water inlet pipe 46 by turning on the water pump 45. The warm air in the wind tube 22 is heated by the heat exchange tube 42 to improve the efficiency of heating and defogger. The water after heat exchange flows back to the heating box 43 through the return pipe 47. The second motor 55 is turned on to drive the lead screw 52 to rotate, and the sliding plate 54 is driven to slide on the guide rod 53 through the threaded relationship, so as to adjust the height of the scraping mechanism 06 to defog at different heights of the vaporizer 13. The defogger water droplets on the outer wall of the vaporizer 13 are scraped by the scraper 61 to improve the efficiency of defogger. The warm air in the wind tube 22 is added to the warm air pipe 62 through the hose, and the vaporizer 13 is blown and heated by the warm air head 63 to improve the efficiency and quality of defogger.

[0037] The first motor 25, water pump 45, second motor 55 and heating plate 44 of the utility model are purchased on the market, and technicians in the industry only need to install and operate them according to the accompanying instruction manual, without the need for creative work by technicians in this field.

[0038] The main functions achieved by the utility model are: in the demisting process of the LNG vaporizer, the quality and efficiency of demisting are improved, and the water drops on the outer wall of the vaporizer 13 during demisting are easily cleaned.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An LNG vaporizer demisting device, comprising a vaporizer (13); characterized in that: It also includes a main body mechanism (01), an air intake mechanism (02), an air separation mechanism (03), a heating mechanism (04), a lifting mechanism (05) and a scraping mechanism (06), wherein the air intake mechanism (02) is mounted on the main body mechanism (01), the air separation mechanism (03) is mounted on the main body mechanism (01), the heating mechanism (04) is mounted on the air intake mechanism (02), the lifting mechanism (05) is mounted in the main body mechanism (01), and the scraping mechanism (06) is mounted on the lifting mechanism (05); The main body mechanism (01) assists the air separation mechanism (03) in heating the two ends of the vaporizer (13), the air intake mechanism (02) facilitates blowing air to the vaporizer (13), the heating mechanism (04) heats the air blown by the air intake mechanism (02), the air separation mechanism (03) facilitates air separation processing of the air blown by the air intake mechanism (02), and the lifting mechanism (05) drives the scraping mechanism (06) to blow warm air to the outer wall of the vaporizer (13) for demisting and scraping.

2. The LNG vaporizer demisting device according to claim 1, characterized in that: The main body (01) comprises a demister box (11) and two partitions (12), wherein the two partitions (12) are mounted on the inner wall of the demister box (11), the vaporizer (13) is mounted on the two partitions (12), and air outlets are arranged on the two partitions (12).

3. The LNG vaporizer demisting device according to claim 2, characterized in that: The air intake mechanism (02) comprises an air intake cylinder (21), an air cylinder (22), a motor frame (23), a fan blade (24) and a first motor (25); the air intake cylinder (21) is mounted on the outer wall of the demisting box (11) through the air cylinder (22); the motor frame (23) is mounted on the inner wall of the air intake cylinder (21); the fan blade (24) is rotatably mounted on the motor frame (23) with a rotating shaft; the first motor (25) is mounted on the motor frame (23); and the output end of the first motor (25) is connected to the rotating shaft of the fan blade (24).

4. The LNG vaporizer demisting device according to claim 3, characterized in that: The air distribution mechanism (03) comprises two air distribution boxes (31), an air outlet (32) and two air distribution pipes (33); the two air distribution boxes (31) are installed at the top and bottom ends inside the defogger box (11); the air outlet (32) is installed on the two air distribution boxes (31); one end of the two air distribution pipes (33) is installed on the wind tube (22); and the other end of the two air distribution pipes (33) is connected to the two air distribution boxes (31).

5. The LNG vaporizer demisting device according to claim 3, characterized in that: The heating mechanism (04) comprises a heat exchange cylinder (41), a heat exchange tube (42), a heating box (43), a heating plate (44), a water pump (45), a water inlet pipe (46) and a water return pipe (47); the heat exchange cylinder (41) is mounted on the outer wall of the wind cylinder (22); the heat exchange tube (42) is spirally mounted in the heat exchange cylinder (41); the heating box (43) is mounted on the outer wall of the demisting box (11); the heating plate (44) is mounted at the bottom end of the heating box (43); the water pump (45) is mounted on the outer wall of the heating box (43); one end of the water inlet pipe (46) is mounted on the water pump (45); the other end of the water inlet pipe (46) is connected to one end of the heat exchange tube (42); one end of the return pipe (47) is mounted on the other end of the heat exchange tube (42); and the other end of the return pipe (47) is mounted on the heating box (43).

6. The LNG vaporizer demisting device according to claim 2, characterized in that: The lifting mechanism (05) includes a mounting frame (51), a lead screw (52), a guide rod (53), a sliding plate (54) and a second motor (55). The mounting frame (51) is mounted on the inner wall of the defogger box (11). The lead screw (52) is rotatably mounted on the mounting frame (51). The guide rod (53) is mounted on the mounting frame (51). A slide groove is provided on the mounting frame (51). The sliding plate (54) is slidably mounted in the slide groove of the mounting frame (51). The sliding plate (54) is slidably mounted on the guide rod (53). The second motor (55) is mounted on the top of the mounting frame (51). The output end of the second motor (55) is connected to the lead screw (52). The sliding plate (54) is threadedly matched with the lead screw (52).

7. The LNG vaporizer demisting device according to claim 6, characterized in that: The scraping mechanism (06) comprises a scraper (61), a warm air pipe (62) and a warm air head (63); the scraper (61) is mounted on a sliding plate (54); the warm air pipe (62) is mounted on the sliding plate (54); the warm air head (63) is mounted on the warm air pipe (62); and the warm air pipe (62) is connected to the air cylinder (22) through a hose.

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