Liquefied petroleum gas dehydrator

Abstract

The utility model relates to the technical field of liquefied petroleum gas dehydration, in particular to a liquefied petroleum gas dehydrator which comprises a box body, a concentric-square-shaped frame is fixedly connected to the top end in the box body, a dehydration filter plate is fixedly connected to the interior of the concentric-square-shaped frame, a compression mechanism is arranged in the box body, and a water scraping mechanism is arranged at the top in the box body. An air inlet pipe is fixed to one side face of the box body in a penetrating mode, an air outlet pipe is fixed to the top face of the box body in a penetrating mode, a water collecting tank is fixed to the inner bottom face of the box body, a drainage pipe is fixed to the inner bottom face of the water collecting tank in a penetrating mode, and the compression mechanism comprises four first reciprocating lead screws which are distributed in a rectangular mode and rotate relative to the top face of the water collecting tank. According to the utility model, the liquefied petroleum gas can be ejected upwards by moving the conical shell upwards, so that the liquefied petroleum gas can be compressed, the internal pressure of the liquefied petroleum gas is increased, the liquefied petroleum gas can be accelerated to penetrate through the dehydration filter plate, and the dehydration efficiency of the liquefied petroleum gas can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquefied petroleum gas dehydration, in particular to a liquefied petroleum gas dehydrator. Background Art

[0002] Liquefied petroleum gas is a hydrocarbon mixture that is in gaseous state at normal temperature and pressure, but condenses into liquid state after pressurization and cooling. This mixture mainly comes from light hydrocarbons in refinery gas and natural gas. Liquefied petroleum gas is mainly used as a petrochemical raw material for hydrocarbon cracking to produce ethylene, and can also be used as a fuel. The combustion products of liquefied petroleum gas are mainly carbon dioxide and water, so it is relatively clean in terms of environmental protection and plays an important role in modern society. Since liquefied petroleum gas contains water during production, a dehydrator is needed to remove the water from the liquefied petroleum gas before leaving the factory.

[0003] Chinese Patent Publication No. CN219730852U discloses a natural gas filter dehydrator, which can not only realize the filtering and dehydration of natural gas by setting a filtering and dehydrating mechanism, but also can use a cleaning brush to clean the water droplets and impurities on the surface of the dehydration filter element, so as to avoid the clogging of the dehydration filter element and affect the efficiency of natural gas dehydration. The sealed box door can be opened by the door handle, so as to replace the dehydration filter element and the cleaning brush, so as to improve the dehydration efficiency of the dehydration filter element. The filtered impurities and water can be collected and discharged by setting a drainage mechanism.

[0004] Although the above patent can separate natural gas and water, the efficiency of natural gas dehydration is slow because the natural gas itself penetrates the dehydration filter element slowly. In addition, the natural gas is continuously poured into the dehydration tank, so it is necessary to stop pouring natural gas during the water release process. Otherwise, the natural gas will flow into the outside world in large quantities from the drainage point, resulting in serious natural gas leakage, so there will be safety hazards. Utility Model Content

[0005] The purpose of the utility model is to provide a liquefied petroleum gas dehydrator to solve the problems raised in the above background technology.

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

[0007] A liquefied petroleum gas dehydrator comprises a box body, a circular frame is fixedly connected to the internal top end of the box body, a dehydration filter plate is fixedly connected to the internal part of the circular frame, a compression mechanism is arranged inside the box body, a wiper mechanism is arranged on the inner top of the box body, an air inlet pipe is fixedly passed through one side surface of the box body, an air outlet pipe is fixedly passed through the top surface of the box body, a water collecting trough is fixedly passed through the inner bottom surface of the box body, a drain pipe is fixedly passed through the inner bottom surface of the water collecting trough, the compression mechanism comprises four reciprocating screw rods 1 which are distributed in a rectangular shape and rotate with the top surface of the water collecting trough, a conical shell abutting the inner side surface of the box body is screwed together between the four reciprocating screw rods 1, and the top end of the reciprocating screw rod 1 is fixedly connected to a connecting shaft which passes through and rotates with the top surface of the box body.

[0008] Furthermore, two symmetrical fixing plates are fixedly connected to the top surface of the box body, a worm gear is fixedly connected to the top of the outer wall of the connecting shaft, a round rod is rotatably passed through one side of the fixing plate, and both ends of the round rod are fixedly connected to worms meshing with the worm gears at corresponding positions.

[0009] Furthermore, a square tube is fixedly passed through the inner bottom surface of the conical shell, and limiting grooves are provided on the four inner side surfaces of the square tube, a cross is slidably connected between the four limiting grooves, a connecting plate is fixedly connected to the top surface of the cross, a sealing plate is fixedly connected to the top surface of the connecting plate, a counterweight is fixedly connected to the bottom surface of the cross, a top rod is arranged inside the drain pipe, and a plurality of connecting rods fixed to the inner wall of the drain pipe are fixed at equal angles on the outer wall of the top rod.

[0010] Furthermore, two opposite side surfaces inside the box body are fixedly connected to limit plates, and both sides of the two ends of the top surface of the conical shell are fixedly connected to top plates.

[0011] Preferably, a sealing gasket is fixed to the outer side surface of the conical shell.

[0012] Further, a pad is fixedly connected to the top of one side of the box body, and a single-groove pulley is fixedly connected to the outer walls of the two worm gears near the pad, and the wiper mechanism includes two symmetrical reciprocating screws that rotate between two opposite side surfaces inside the box body, and a slider is screwed into the outer wall of the reciprocating screw. A scraper that contacts the dewatering filter plate is fixedly connected between the two sliders, and one end of the reciprocating screw passes through the side of the box body and is fixedly connected to a double-groove pulley. The two double-groove pulleys are connected by a belt drive, and the single-groove pulley and the other groove of the double-groove pulley at the corresponding position are connected by a belt drive. The top surface of the pad is fixedly connected to a motor, and the output end of the motor is fixed to the reciprocating screw at the corresponding position.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. By moving the conical shell upward, the liquefied petroleum gas can be pushed upward, thereby compressing the liquefied petroleum gas and increasing the internal pressure of the liquefied petroleum gas, thereby accelerating the liquefied petroleum gas to pass through the dehydration filter plate, thereby improving the dehydration efficiency of the liquefied petroleum gas;

[0015] 2. By moving the conical shell upward, the sealing plate can block the square tube under the action of the counterweight, thereby preventing liquefied petroleum gas from flowing out of the drain pipe. In addition, during the drainage process, the counterweight is located inside the square tube. At this time, liquefied petroleum gas continues to be poured into the box. Under the action of the counterweight, a large amount of liquefied petroleum gas can be prevented from flowing out of the drain pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the internal structure of the box in the utility model;

[0018] Figure 3 It is a schematic diagram of the interior of the box in the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the compression mechanism in the utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the wiper mechanism in the utility model.

[0021] In the figure: 1. box body; 11. air inlet pipe; 12. air outlet pipe; 13. water collecting trough; 14. drain pipe; 15. fixing plate; 16. top rod; 17. connecting rod; 18. limit plate; 19. pad; 2. circular frame; 21. dewatering filter plate; 3. compression mechanism; 31. reciprocating screw rod 1; 32. conical shell; 321. top plate; 33. cross; 331. connecting plate; 332. sealing plate; 333. counterweight; 34. connecting shaft; 341. worm gear; 35. worm; 351. single groove pulley; 4. wiper mechanism; 41. reciprocating screw rod 2; 42. slider; 43. scraper; 44. double groove pulley; 45. motor. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figures 1 to 5In the embodiment of the utility model, a liquefied petroleum gas dehydrator includes a box body 1, a circular frame 2 is fixedly connected to the top of the inner part of the box body 1, a dehydration filter plate 21 is fixedly connected to the inner part of the circular frame 2, a compression mechanism 3 is arranged inside the box body 1, a wiper mechanism 4 is arranged on the inner top of the box body 1, an air inlet pipe 11 is fixedly penetrated through one side of the box body 1, an air outlet pipe 12 is fixedly penetrated through the top surface of the box body 1, a water collecting trough 13 is fixedly disposed on the inner bottom surface of the box body 1, a drain pipe 14 is fixedly penetrated through the inner bottom surface of the water collecting trough 13, the compression mechanism 3 includes four reciprocating screw rods 31 distributed in a rectangular shape and rotating with the top surface of the water collecting trough 13, a conical shell 32 abutting against the inner side surface of the box body 1 is screwed and connected between the four reciprocating screw rods 31, and a connecting shaft 34 that rotates through the top surface of the box body 1 is fixedly connected to the top of the reciprocating screw rod 31.

[0024] Specifically, liquefied petroleum gas is first poured into the interior of the housing 1 from the air inlet pipe 11, and then the conical shell 32 can be reciprocated up and down by the rotation of four reciprocating screws 31. When the conical shell 32 moves downward, the liquefied petroleum gas can be accelerated to be poured into the interior of the housing 1. When the conical shell 32 moves upward, the liquefied petroleum gas can be pushed upward, thereby compressing the liquefied petroleum gas and increasing the internal pressure of the liquefied petroleum gas, thereby accelerating the liquefied petroleum gas to pass through the dehydration filter plate 21. The dehydration filter plate 21 can filter the liquefied petroleum gas so that the moisture in the liquefied petroleum gas is adsorbed on the bottom surface of the dehydration filter plate 21, and then the adsorbed water on the dehydration filter plate 21 can be scraped off by the action of the wiper mechanism 4 and dropped into the conical shell 32. In this way, the up and down reciprocating movement of the conical shell 32 can accelerate the liquefied petroleum gas to pass through the dehydration filter plate 21, thereby improving the dehydration efficiency of the liquefied petroleum gas.

[0025] Embodiment 1

[0026] like Figure 2-4 As shown, in this embodiment, two symmetrical fixing plates 15 are fixedly connected to the top surface of the box body 1, a worm gear 341 is fixedly connected to the top of the outer wall of the connecting shaft 34, a round rod is rotatably passed through one side of the fixing plate 15, and both ends of the round rod are fixedly connected to a worm 35 meshing with the worm gear 341 at the corresponding position, a square tube is passed through and fixed to the inner bottom surface of the conical shell 32, and limiting grooves are provided on the four inner sides of the square tube, and a cross 33 is slidably connected between the four limiting grooves, and the top surface of the cross 33 is fixed A connecting plate 331 is connected, a sealing plate 332 is fixedly connected to the top surface of the connecting plate 331, a counterweight 333 is fixedly connected to the bottom surface of the cross 33, a top rod 16 is arranged inside the drain pipe 14, a plurality of connecting rods 17 fixed to the inner wall of the drain pipe 14 are fixed at equal angles in a ring shape on the outer wall of the top rod 16, the two opposite side surfaces inside the box body 1 are fixedly connected to the limiting plate 18, the top plates 321 are fixedly connected to both sides of the top surface of the conical shell 32, and a sealing gasket is fixed to the outer side surface of the conical shell 32.

[0027] In this embodiment, the rotation of the worm gear 35 can make the worm wheel 341 at the corresponding position rotate, and the rotating worm wheel 341 can make the connecting shaft 34 at the corresponding position drive the reciprocating screw 31 at the corresponding position to rotate, so that the conical shell 32 can reciprocate up and down. When the conical shell 32 moves downward and the top rod 16 contacts the counterweight block 333, the continued downward movement of the conical shell 32 can make the counterweight block 333 be lifted by the top rod 16, so that the sealing plate 332 can move up and disengage from the square tube. At this time, the water falling into the conical shell 32 flows from the square tube into the water collecting tank 13, and then flows out through the drain pipe 14. When the conical shell 32 moves upward, the sealing plate 332 begins to be retracted into the square tube under the action of the gravity of the counterweight block 333 until the counterweight block 333 is separated from the top rod 16, and the sealing plate 332 returns to its original position, thereby preventing the box body 1 from being blocked. A large amount of liquefied petroleum gas flows out from the drain pipe 14 (since the water content in liquefied petroleum gas is not very high, very little water falls into the conical shell 32, so the moving speed of the conical shell 32 can be designed to be faster during design). The device can move the conical shell 32 upward so that the sealing plate 332 can block the square tube under the action of the counterweight 333, thereby preventing the liquefied petroleum gas from flowing out of the drain pipe 14. In addition, during the drainage process, the counterweight 333 is located inside the square tube. At this time, liquefied petroleum gas continues to be poured into the box body 1. Under the action of the counterweight 333, a large amount of liquefied petroleum gas can be prevented from flowing out of the drain pipe 14. The limiting plate 18 and the top plate 321 can prevent the conical shell 32 from blocking the air inlet pipe 11, so that the liquefied petroleum gas poured into the box body 1 is always located between the conical shell 32 and the dehydration filter plate 21.

[0028] Embodiment 2

[0029] On the basis of the first embodiment, the water in the liquefied petroleum gas is discharged centrally.

[0030] like Figure 2 and Figure 5 As shown, in this embodiment, a pad 19 is fixedly connected to the top of one side of the box body 1, and a single-groove pulley 351 is fixedly connected to the outer walls of the two worm gears 35 near the pad 19. The wiper mechanism 4 includes two symmetrical reciprocating screws 41 that rotate between two opposite side surfaces inside the box body 1, and a slider 42 is screwed to the outer wall of the reciprocating screw 41. A scraper 43 that contacts the dewatering filter plate 21 is fixedly connected between the two sliders 42. One end of the reciprocating screw 41 passes through the side of the box body 1 and is fixedly connected to a double-groove pulley 44. The two double-groove pulleys 44 are connected by belt one transmission, and the single-groove pulley 351 and the other groove of the double-groove pulley 44 at the corresponding position are connected by belt two transmission, and the top surface of the pad 19 is fixedly connected to a motor 45, and the output end of the motor 45 is fixed to the reciprocating screw 41 at the corresponding position.

[0031] In this embodiment, the two reciprocating screws 41 can be rotated by driving the motor 45 , and the two rotating reciprocating screws 41 can make the scraper 43 move back and forth, and the moving scraper 43 can scrape the water adsorbed on the dehydration filter plate 21 into the conical shell 32 .

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A liquefied petroleum gas dehydrator, characterized in that: The invention comprises a box body (1), the top of the box body (1) is fixedly connected to a circular frame (2), the inside of the circular frame (2) is fixedly connected to a dehydration filter plate (21), a compression mechanism (3) is arranged inside the box body (1), a wiper mechanism (4) is arranged on the inner top of the box body (1), an air inlet pipe (11) is fixedly passed through one side of the box body (1), an air outlet pipe (12) is fixedly passed through the top surface of the box body (1), and the inner bottom surface of the box body (1) is fixedly passed through the bottom surface of the box body (1). A water collecting trough (13) is fixed thereto, a drain pipe (14) is fixedly passed through the inner bottom surface of the water collecting trough (13), the compression mechanism (3) comprises four reciprocating screw rods (31) which are distributed in a rectangular shape and rotate with the top surface of the water collecting trough (13), a conical shell (32) which is in contact with the inner side surface of the box body (1) is screwed together and connected thereto, and the top end of the reciprocating screw rod (31) is fixedly connected to a connecting shaft (34) which passes through and rotates with the top surface of the box body (1).

2. A liquefied petroleum gas dehydrator according to claim 1, characterized in that: Two symmetrical fixing plates (15) are fixedly connected to the top surface of the box body (1); a worm wheel (341) is fixedly connected to the top end of the outer wall of the connecting shaft (34); a round rod is rotatably passed through one side surface of the fixing plate (15); and both ends of the round rod are fixedly connected to a worm (35) meshing with the worm wheel (341) at a corresponding position.

3. A liquefied petroleum gas dehydrator according to claim 2, characterized in that: A square tube is fixedly passed through the inner bottom surface of the conical shell (32), and the four inner side surfaces of the square tube are provided with limit grooves, a cross (33) is slidably connected between the four limit grooves, a connecting plate (331) is fixedly connected to the top surface of the cross (33), a sealing plate (332) is fixedly connected to the top surface of the connecting plate (331), a counterweight (333) is fixedly connected to the bottom surface of the cross (33), and a mandrel (16) is provided inside the drain pipe (14), and a plurality of connecting rods (17) fixed to the inner wall of the drain pipe (14) are fixed at equal angles in an annular manner on the outer wall of the mandrel (16).

4. A liquefied petroleum gas dehydrator according to claim 3, characterized in that: The two opposite side surfaces inside the box body (1) are fixedly connected to the limiting plates (18), and the top surfaces of the conical shell (32) are fixedly connected to the top plates (321) on both sides at both ends.

5. A liquefied petroleum gas dehydrator according to claim 4, characterized in that: A sealing gasket is fixed to the outer side surface of the conical shell (32).

6. A liquefied petroleum gas dehydrator according to claim 5, characterized in that: A backing plate (19) is fixedly connected to the top of one side of the housing (1); the outer walls of two worms (35) near the backing plate (19) are fixedly connected to single-groove pulleys (351); the wiper mechanism (4) comprises two symmetrical reciprocating screws (41) that rotate between two opposite side surfaces inside the housing (1); the outer walls of the reciprocating screws (41) are screwedly connected to a slider (42); a scraper (42) that contacts the dewatering filter plate (21) is fixedly connected between the two sliders (42). 43), a section of the reciprocating screw rod 2 (41) passes through the side of the box body (1) and is fixedly connected to a double-groove pulley (44), the two double-groove pulleys (44) are connected by a belt 1 transmission, the single-groove pulley (351) and the other groove of the double-groove pulley (44) at the corresponding position are connected by a belt 2 transmission, the top surface of the pad (19) is fixedly connected to a motor (45), and the output end of the motor (45) is fixed to the reciprocating screw rod 2 (41) at the corresponding position.

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