A drying device for natural gas liquefaction pretreatment

Abstract

The utility model discloses a drying device for natural gas liquefaction pretreatment, which relates to the technical field of natural gas drying. The device comprises a drying box, a plurality of supporting legs are arranged at the bottom of the drying box, a first baffle is arranged in the drying box, a second baffle is arranged above the first baffle, a separation mechanism is arranged between the first baffle and the second baffle, an air inlet pipe is arranged on the surface of the drying box at the outside of the separation mechanism, a dust removal mechanism is arranged above the second baffle in the drying box, a cleaning mechanism is arranged on the dust removal mechanism, natural gas is transported into the separation mechanism in the drying box through the air inlet pipe, the separation mechanism can separate dust and a large amount of water from the natural gas, the dust removal mechanism can cool the wet natural gas to below the dew point, so that the water in the wet gas condenses into water droplets, and the water and other impurities and dust condense into liquid, thereby improving the drying efficiency of the natural gas, and the water on the condenser pipe is scraped off by the cleaning mechanism, thereby improving the recycling efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of natural gas drying, in particular to a drying device for natural gas liquefaction pretreatment. Background Art

[0002] In terms of the utilization of natural gas, it is rarely used directly at home and abroad. Instead, the natural gas liquefaction process is generally used to obtain liquefied natural gas that is easy to store and transport. However, before the natural gas is liquefied, in order to prevent the moisture in the natural gas from affecting its combustion, the natural gas needs to be dried.

[0003] At present, the method of drying natural gas usually separates the water in the natural gas to achieve the effect of drying the natural gas. However, natural gas is prone to carry a large amount of impurities after collection, and it is also necessary to remove impurities during the drying process to prevent excessive impurities from affecting the liquefaction and use of natural gas. In addition, the existing drying device cannot discharge the water in time during the process of cooling and drying the natural gas, which affects the drying efficiency of the natural gas.

[0004] Based on this, a drying device for natural gas liquefaction pretreatment is now provided, which can eliminate the disadvantages of the existing devices. Utility Model Content

[0005] The utility model aims to provide a drying device for natural gas liquefaction pretreatment, so as to solve the problem in the background technology that natural gas is easy to carry a large amount of impurities after collection and needs to be impurity-removed, the existing impurity-removing device has a poor impurity-removing effect, and cannot effectively cool down the natural gas in time, so that the heat of the liquefied gas is too high and dangerous.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A drying device for natural gas liquefaction pretreatment comprises a drying box, a plurality of supporting legs are arranged at the bottom of the drying box, a first baffle is arranged in the drying box, a second baffle is arranged above the first baffle, a separation mechanism is arranged between the first baffle and the second baffle, an air inlet pipe is arranged on the surface of the drying box outside the separation mechanism, a debris removal mechanism is arranged in the drying box above the second baffle, and a cleaning mechanism is arranged on the debris removal mechanism.

[0008] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In an optional scheme: the separation mechanism includes a first partition, a number of first partitions are evenly distributed at the bottom end of the second baffle, a number of evenly distributed second partitions are arranged on the top end of the first baffle, and the first partitions and the second partitions are cross-arranged, the bottom end of the first partition does not contact the surface of the first baffle, and the top end of the second partition does not contact the bottom surface of the second baffle.

[0010] In an optional solution: the impurity removal mechanism includes a plurality of condensation tubes evenly distributed between the upper portion of the second baffle and the inner wall of the drying box.

[0011] In an optional solution: an air intake groove is provided on the end of the second baffle away from the air intake pipe.

[0012] In an optional solution: the cleaning mechanism includes a scraper, which is slidably connected to the condenser tube, and a screw rod is arranged above the scraper, one end of the screw rod is rotatably connected to the inner wall of the drying box, and the other end of the screw rod is fixedly connected to the output end of the motor outside the drying box, and a connecting block is arranged on the top of the scraper, and the connecting block is rotatably connected to the screw rod thread.

[0013] In an optional solution: the surface of the second baffle is an inclined surface inclined toward the air inlet groove.

[0014] In an optional solution: a plurality of water permeable holes are arranged on the first baffle plate, symmetrical guide plates are arranged on the bottom surface of the drying box below the first baffle plate, and a water outlet is arranged between the guide plates at the bottom of the drying box.

[0015] In an optional solution: an air outlet pipe is provided on one side of the top of the drying box, a support plate is provided on one side outside the drying box, a support seat is provided at the bottom of the support plate, a cooling column is provided on the support plate, a connecting pipe is wrapped around the cooling column, one end of the connecting pipe is connected to the air outlet pipe, and the other end of the connecting pipe is located at one side of the bottom of the cooling column and a mounting plate is provided.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] The utility model has a first baffle plate arranged in a drying box, a second baffle plate arranged above the first baffle plate, a separation mechanism arranged between the first baffle plate and the second baffle plate, an air inlet pipe arranged on the surface of the drying box outside the separation mechanism, a dust removal mechanism arranged in the drying box above the second baffle plate, a cleaning mechanism arranged on the dust removal mechanism, the separation mechanism can separate dust and a large amount of water from the natural gas, the dust removal mechanism can cool the wet natural gas to below the dew point, so that the water in the wet gas condenses into water droplets, and the water and other impurities and dust condense into liquid, thereby improving the drying efficiency of the natural gas, and the water on the condensation tube is scraped off by the cleaning mechanism, thereby improving the recycling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the overall internal structure of the utility model.

[0020] Figure 3 This is a schematic diagram of the internal structure of the drying box of the present utility model.

[0021] Notes on the figure markings: 1. Drying box; 2. Support leg; 3. First baffle; 4. Second baffle; 5. First partition; 6. Second partition; 7. Air inlet pipe; 8. Water permeable hole; 9. Condenser; 10. Scraper; 11. Screw rod; 12. Motor; 13. Connecting block; 14. Guide plate; 15. Water outlet; 16. Support plate; 17. Support seat; 18. Cooling column; 19. Connecting pipe; 20. Air outlet pipe; 21. Mounting plate; 22. Air inlet groove. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] In one embodiment, Figure 1-Figure 3 As shown, a drying device for natural gas liquefaction pretreatment includes a drying box 1, a plurality of supporting legs 2 are arranged at the bottom of the drying box 1, a first baffle 3 is arranged in the drying box 1, a second baffle 4 is arranged above the first baffle 3, a separation mechanism is arranged between the first baffle 3 and the second baffle 4, an air inlet pipe 7 is arranged on the surface of the drying box 1 outside the separation mechanism, a dust removal mechanism is arranged above the second baffle 4 in the drying box 1, and a cleaning mechanism is arranged on the dust removal mechanism. Natural gas is transported into the separation mechanism in the drying box 1 through the air inlet pipe 7, the separation mechanism can separate dust and a large amount of water from the natural gas, the dust removal mechanism can cool the wet natural gas to below the dew point, so that the water in the wet gas condenses into water droplets, and the water and other impurities and dust condense into liquid, thereby improving the drying efficiency of the natural gas, and the water on the condenser is scraped off by the cleaning mechanism to improve the recycling efficiency.

[0024] In one embodiment, Figure 3 As shown, the separation mechanism includes a first partition 5, and a plurality of first partitions 5 are evenly distributed at the bottom end of the second baffle 4. A plurality of evenly distributed second partitions 6 are arranged at the top end of the first baffle 3, and the first partition 5 and the second partition 6 are cross-arranged. The bottom end of the first partition 5 does not contact the surface of the first baffle 3, and the top end of the second partition 6 does not contact the bottom surface of the second baffle 4. The natural gas flows between the first partition 5 and the second partition 6. During the flow of wet natural gas, the relative positions between the partitions cause the natural gas flow to change its flow direction. At this time, the flowing natural gas has a large inertia to drive the dust and moisture, which will collide with the partition, so that the dust and a large amount of moisture are separated from the natural gas.

[0025] In one embodiment, Figure 2As shown, the impurity removal mechanism includes a plurality of condensing tubes 9, which are evenly distributed between the upper portion of the second baffle plate 4 and the inner wall of the drying box 1. The wet natural gas contacts the condensing tubes 9, and the wet gas is cooled to below the dew point, so that the moisture in the wet gas condenses into water droplets, and the moisture and other impurities and dust condense into liquid.

[0026] In one embodiment, Figure 3 As shown, an air inlet groove 22 is provided on the end of the second baffle plate 4 away from the air inlet pipe 7 , and the separated natural gas enters the upper part of the second baffle plate 6 through the air inlet groove 22 .

[0027] In one embodiment, Figure 2 As shown, the cleaning mechanism includes a scraper 10, which is slidably connected to the condenser 9. A screw rod 11 is arranged above the scraper 10, one end of the screw rod 11 is rotatably connected to the inner wall of the drying box 1, and the other end of the screw rod 11 is fixedly connected to the output end of the motor 12 outside the drying box 1. A connecting block 13 is arranged on the top of the scraper 10, and the connecting block 13 is rotatably connected to the screw rod thread. Starting the motor 12 can drive the screw rod 11 to rotate, thereby driving the scraper 10 to move laterally to scrape off the dust and moisture remaining on the condenser 9.

[0028] In one embodiment, Figure 3 As shown, the surface of the second baffle plate 4 is an inclined surface inclined toward the air inlet groove 22 , and the scraped water and dust slide down to the air inlet groove 22 through the inclined surface of the second baffle plate 4 , and flow into the water outlet 8 through the air inlet groove 22 and the water permeable hole 8 .

[0029] In one embodiment, Figure 2 As shown, a plurality of water permeable holes 8 are provided on the first baffle plate 3, a symmetrical guide plate 14 is provided on the bottom surface of the drying box 1 below the first baffle plate 3, and a water outlet 15 is provided between the guide plates 14 at the bottom of the drying box 1. The dust and water droplets on the first partition plate 5 and the second partition plate 6 will fall onto the guide plate 14 from the water permeable holes, and be discharged from the water outlet 15 along the guide plate 14, thereby separating a large amount of liquid and large-diameter dust in the natural gas.

[0030] In one embodiment, Figure 2 and Figure 3 As shown, an air outlet pipe 20 is provided on one side of the top of the drying box 1, a support plate 16 is provided on one side outside the drying box 1, a support seat 17 is provided at the bottom of the support plate 16, a cooling column 18 is provided on the support plate 16, a connecting pipe 19 is wound around the cooling column 18, one end of the connecting pipe 19 is connected to the air outlet pipe 20, and the other end of the connecting pipe 19 is located at one side of the bottom of the cooling column 18 and a mounting plate 21 is provided, and the cooling column 20 realizes effective cooling treatment of natural gas.

[0031] The above embodiment discloses a drying device for natural gas liquefaction pretreatment. When in use, natural gas is transported into the separation mechanism in the drying box 1 through the air inlet pipe 7. The natural gas flows between the first partition plate 5 and the second partition plate 6. During the flow of wet natural gas, the relative positions between the partition plates change the flow direction of the natural gas flow. At this time, the flowing natural gas has a large inertia to drive the dust and water, which will collide with the partition plate, so that the dust and a large amount of water are separated from the natural gas. The separated natural gas enters the upper part of the second partition plate 6 through the air inlet groove 22. The wet natural gas contacts the condenser 9, and the wet gas is cooled to below the dew point, so that the water in the wet gas condenses into water droplets. The moisture and other impurities and dust are condensed into liquid. The starting motor 12 can drive the screw 11 to rotate, thereby driving the scraper 10 to move horizontally to scrape off the dust and moisture remaining on the condenser 9. The scraped moisture and dust slide through the inclined surface of the second baffle 4 to the air inlet groove 22, and flow into the water outlet 15 through the air inlet groove 22 and the water permeable hole 8. The dust and water droplets on the first partition 5 and the second partition 6 will also fall from the water permeable hole onto the guide plate 14, and be discharged from the water outlet 15 along the guide plate 14, thereby separating a large amount of liquid and large-diameter dust in the natural gas, improving the drying efficiency of the natural gas, and the natural gas after drying is discharged from the outlet pipe 20.

[0032] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A drying device for natural gas liquefaction pretreatment, comprising a drying box (1), wherein a plurality of supporting legs (2) are arranged at the bottom of the drying box (1), characterized in that: The drying box (1) is provided with a first baffle (3), a second baffle (4) is provided above the first baffle (3), a separation mechanism is provided between the first baffle (3) and the second baffle (4), an air inlet pipe (7) is provided on the surface of the drying box (1) outside the separation mechanism, a debris removal mechanism is provided above the second baffle (4) in the drying box (1), and a cleaning mechanism is provided on the debris removal mechanism.

2. The drying device for natural gas liquefaction pretreatment according to claim 1, characterized in that: The separation mechanism comprises a first baffle (5), wherein the first baffle (5) is evenly distributed at the bottom end of the second baffle (4), and a plurality of evenly distributed second baffles (6) are arranged at the top end of the first baffle (3), and the first baffle (5) and the second baffle (6) are arranged crosswise, the bottom end of the first baffle (5) does not contact the surface of the first baffle (3), and the top end of the second baffle (6) does not contact the bottom surface of the second baffle (4).

3. The drying device for natural gas liquefaction pretreatment according to claim 1, characterized in that: The impurity removal mechanism comprises a condenser (9), and a plurality of the condenser tubes (9) are evenly distributed between the upper side of the second baffle plate (4) and the inner wall of the drying box (1).

4. The drying device for natural gas liquefaction pretreatment according to claim 1, characterized in that: An air intake groove (22) is provided on the second baffle (4) at one end away from the air intake pipe (7).

5. The drying device for natural gas liquefaction pretreatment according to claim 1, characterized in that: The cleaning mechanism comprises a scraper (10), the scraper (10) is slidably connected to the condenser tube (9), a screw rod (11) is arranged above the scraper (10), one end of the screw rod (11) is rotatably connected to the inner wall of the drying box (1), and the other end of the screw rod (11) is fixedly connected to the output end of the motor (12) outside the drying box (1), and a connecting block (13) is arranged at the top of the scraper (10), and the connecting block (13) is rotatably connected to the screw rod thread.

6. The drying device for natural gas liquefaction pretreatment according to claim 1, characterized in that: The surface of the second baffle (4) is in the form of an inclined surface inclined toward the air inlet groove (22).

7. The drying device for natural gas liquefaction pretreatment according to claim 1, characterized in that: The first baffle plate (3) is provided with a plurality of water permeable holes (8); the bottom surface of the drying box (1) is provided with symmetrical guide plates (14) below the first baffle plate (3); and the bottom of the drying box (1) is provided with a water outlet (15) between the guide plates (14).

8. The drying device for natural gas liquefaction pretreatment according to claim 1, characterized in that: An air outlet pipe (20) is arranged on one side of the top of the drying box (1), a support plate (16) is arranged on one side outside the drying box (1), a support seat (17) is arranged at the bottom of the support plate (16), a cooling column (18) is arranged on the support plate (16), a connecting pipe (19) is wound around the cooling column (18), one end of the connecting pipe (19) is connected to the air outlet pipe (20), and the other end of the connecting pipe (19) is located at one side of the bottom of the cooling column (18) and a mounting plate (21) is arranged.

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