Liquefied petroleum gas dehydrator

Abstract

The invention belongs to the technical field of liquefied petroleum gas treatment, and particularly discloses a liquefied petroleum gas dehydrator which comprises a treatment tank, a supporting seat is fixedly connected to the bottom of the treatment tank, an inlet hopper is fixedly connected to the top of the treatment tank, and a connecting pipe is inserted into and fixedly communicated with the bottom of the treatment tank. Control valves are arranged on the connecting pipe and the inlet hopper, the bottom of the connecting pipe fixedly communicates with a collecting tank, and a second collecting assembly and a first collecting assembly which are used for preventing gas from entering are sequentially arranged in the treatment tank from top to bottom; one side of the outer wall of the treatment tank is provided with a driving assembly used for being matched with the second collecting assembly and the first collecting assembly in a switching mode, gas and liquid can be separated, then gas dissipation is greatly reduced, meanwhile, a first extrusion plate can extrude a water absorption part, then water contained in the water absorption part is thoroughly extruded out, and the water absorption part is prevented from being damaged. And the drainage efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of liquefied petroleum gas processing, and in particular relates to a liquefied petroleum gas dehydrator. Background Art

[0002] LPG dehydration refers to the process of removing water from LPG. This step is crucial to ensuring the quality and safe storage of LPG. The presence of water can cause LPG to freeze at low temperatures and block pipelines, or react with hydrocarbon components in LPG to form an unstable mixture, increasing safety risks.

[0003] Liquefied petroleum gas can not only cause fire and explosion, but also cause poisoning. When high-concentration liquefied petroleum gas vapor is inhaled into the human body, it will cause dizziness, headache, nausea, vomiting and other symptoms. In severe cases, it may even cause suffocation or death. The existing dehydration equipment will still cause a large amount of liquefied petroleum gas leakage, which increases the risk factor in the dehydration process. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a liquefied petroleum gas dehydrator.

[0005] To achieve the above objectives, the present invention provides a liquefied petroleum gas dehydrator, comprising a processing tank, the bottom of which is fixedly connected to a support seat, the top of which is fixedly connected to an entry bucket, a connecting pipe is inserted and fixedly connected to the bottom of the processing tank, control valves are provided on the connecting pipe and the entry bucket, the bottom of the connecting pipe is fixedly connected to a collecting tank, a second collecting assembly and a first collecting assembly for preventing gas from entering are sequentially provided inside the processing tank from top to bottom, and a driving assembly for switching and cooperating with the second collecting assembly and the first collecting assembly is provided on one side of the outer wall of the processing tank.

[0006] In the above technical solution, further, the second collecting assembly includes a mounting shell fixedly connected to the inner wall of the processing tank, and the mounting shell is arranged as a conical structure, a through hole is opened at the bottom of the mounting shell, a water-absorbing component adapted to the shape of the mounting shell is fixedly connected to the inner wall of the mounting shell, a first extrusion plate is arranged above the water-absorbing component, a second extrusion plate is arranged on the top of the first extrusion plate, a movable rod is fixedly connected to the top of the second extrusion plate, a fixing plate is fixedly connected to the inner wall of the processing tank, and the movable rod is inserted and slidably connected to the top of the outer wall of the fixing plate, a first rotating shaft is inserted and rotatably connected to the inside of the processing tank, a first cam is fixedly connected to the end of the first rotating shaft, and a spring is sleeved on the outer wall of the movable rod. In the above technical solution, further, evenly distributed receiving grooves are provided on the outer wall of the first extrusion plate, a touch ring is fixedly connected to one side of the outer wall of the receiving groove, and a spring is fixedly connected between the receiving groove and the second extrusion plate. In the above technical solution, further, a through hole is opened in the middle of the first extrusion plate, and evenly distributed pressure relief holes are opened on the outer wall of the first extrusion plate. In the above technical scheme, further, the first collecting component includes a sealing plate fixedly connected to the inner wall of the processing tank, a rectangular hole is opened on the outer wall of the sealing plate, a water retention plate is inserted and rotatably connected to the inside of the rectangular hole through an axis, the water retention plate is inclined, the water retention plate is connected to the sealing plate by a traction member, a counterweight is fixedly connected to the top of the water retention plate, a sensing component is arranged on one side of the outer wall of the water retention plate, the sensing component includes a placement hole, a pressure sensor, a waterproof plastic layer and an elastic plate, a collecting bucket is fixedly connected to the inner wall of the processing tank, the collecting bucket is connected to the connecting pipe, a floating ball is arranged at the opening of the collecting bucket, a second rotating shaft is inserted and rotatably connected to the outer wall of the processing tank, and the second rotating shaft is inserted and extended to the inner side of the sealing plate, a fixing cylinder is fixedly connected to the inner side of the sealing plate, a second cam is fixedly connected to the end of the second rotating shaft, a protruding block is inserted and slidably connected to the top of the fixed cylinder, and baffles are fixedly connected to both sides of the outer wall of the protruding block.

[0007] In the above technical solution, further, the interior of the collecting bucket is fixedly connected to a support frame in an inverted V structure, a fixed block is provided on the top of the support frame, the fixed block is respectively connected to the two water retention plates through two connecting ropes, the bottom of the fixed block is connected to the float through a connecting rope, and the connecting rope for connecting the float is inserted and slidably connected to the bottom of the support frame.

[0008] In the above technical scheme, further, the driving assembly includes a motor fixedly connected to the outer wall of the processing tank through a mounting plate and a second ratchet mechanism and a first ratchet mechanism respectively arranged on the first rotating shaft and the second rotating shaft, the second ratchet mechanism and the first ratchet mechanism both include a rotating block rotatably connected to the outer wall of the processing tank, the outer wall of the rotating block is provided with a ratchet hole, the interior of the rotating block is rotatably connected with a ratchet, and the ratchet is respectively connected to the second rotating shaft and the first rotating shaft, the teeth of the ratchet are a flexible structure, the teeth of the ratchet are provided with a weakened hole, the ratchet holes inside the second ratchet mechanism and the first ratchet mechanism are arranged in opposite directions, a driving pulley is fixedly connected to the outer wall of the rotating block located in the first ratchet mechanism, and the driving pulley is connected to the output end of the motor, a driven pulley is fixedly connected to the outer wall of the rotating block located on the second ratchet mechanism, and a belt is tensioned between the driving pulley and the driven pulley.

[0009] Compared with the prior art, the present invention has the following beneficial effects: The water absorbent can block gas and absorb water at the same time. By setting it into a cone shape, it is more suitable for the sedimentation of water contained therein. The first rotating shaft is rotated to drive the first cam to rotate synchronously. During the rotation of the first cam, the movable rod is contacted and squeezed, so that the second squeezing plate and the first squeezing plate are driven to squeeze the water absorbent, thereby squeezing the water contained in the water absorbent. Through this setting, gas and liquid can be separated, thereby greatly reducing the escape of gas. At the same time, the first squeezing plate can squeeze the water absorbent and completely squeeze out the water contained in the water absorbent, thereby improving the drainage efficiency. The spring sheet supports the second extrusion plate, so that it is separated from the first extrusion plate. At this time, the water absorbent can obtain a larger contact space, thereby improving its adsorption capacity. When the second extrusion plate is pressed down, after the first extrusion plate contacts the water absorbent, the downward pressure will cause the spring sheet to deform and be stored in the storage groove. At this time, the second extrusion plate can be in contact with the first extrusion plate, thereby preventing water from overflowing from the top and ensuring the discharge direction of the water. At the same time, the touch ring is buried in the interior of the water absorbent, thereby increasing the extrusion force. Through this arrangement, the extrusion effect is further improved while preventing water from overflowing; The float blocks the opening of the connecting pipe to prevent gas from entering, and the water retention plate blocks the blocking plate. At this time, the squeezed water will be evenly distributed on the outer walls of the two water retention plates after being diverted by the counterweight block, and gradually accumulate. When the detection threshold of the sensing component is reached, the second rotating shaft drives the second cam to rotate, and the extension block pushes the water retention plate upward in the process. The extension block pushes the water retention plate upward synchronously, so that the accumulated water falls into the inside of the collection bucket. Since the water has been accumulated in advance, it can form enough potential energy to impulse the float and make it float, thereby opening the opening of the connecting pipe; Through the connection of the connecting rope, when the water retention plate flips upward, the float can be pulled upward synchronously, thereby ensuring that the connecting pipe is in an open state, preventing the float from being stuck in the entrance of the connecting pipe and preventing water from passing through. It should be noted that when the water retention plate is restored, the float will be continuously suspended, so that when the water is not sufficient, the liquid can still flow into the connecting pipe. At the same time, the float in the suspended state can also be reset after being lowered. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 A schematic diagram of the structure of a liquefied petroleum gas dehydrator proposed by the present invention; Figure 2 A schematic diagram of the internal structure of a liquefied petroleum gas dehydrator treatment tank proposed by the present invention; Figure 3 This is a schematic structural diagram of a second collecting assembly of a liquefied petroleum gas dehydrator proposed by the present invention; Figure 4 A schematic diagram of the structure of an extrusion assembly of a liquefied petroleum gas dehydrator proposed by the present invention; Figure 5 This is a schematic structural diagram of a first collecting assembly of a liquefied petroleum gas dehydrator proposed by the present invention; Figure 6 A schematic diagram of the internal structure of a collecting bucket of a liquefied petroleum gas dehydrator proposed by the present invention; Figure 7 The present invention is a schematic diagram of a ratchet transmission structure of a liquefied petroleum gas dehydrator.

[0011] In the figure: 1, treatment tank; 2, support seat; 3, collection tank; 4, motor; 5, first ratchet mechanism; 6, second ratchet mechanism; 7, driven pulley; 8, driving pulley; 9, entry bucket; 10, control valve; 11, connecting pipe; 12, first collection assembly; 13, second collection assembly; 14, first cam; 15, first rotating shaft; 16, fixing plate; 17, mounting shell; 18, water absorbing member; 19, touch ring; 20, storage groove; 21, the first An extrusion plate; 22. a movable rod; 23. a spring; 24. a second extrusion plate; 25. a pressure relief hole; 26. a spring; 27. a sealing plate; 28. a water retention plate; 29. ​​a counterweight; 30. a sensing component; 31. a collecting bucket; 32. a floating ball; 33. a support frame; 34. a fixing cylinder; 35. a second cam; 36. a second rotating shaft; 37. an extending block; 38. a rotating block; 39. a ratchet hole; 40. a ratchet; 41. a weakening hole; 42. a fixing block. DETAILED DESCRIPTION In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0012] like Figure 1-Figure 7 A liquefied petroleum gas dehydrator shown includes a processing tank 1, the bottom of the processing tank 1 is fixedly connected to a support seat 2, the top of the processing tank 1 is fixedly connected to an entry bucket 9, a connecting pipe 11 is inserted and fixedly connected to the bottom of the processing tank 1, a control valve 10 is provided on the connecting pipe 11 and the entry bucket 9, the bottom of the connecting pipe 11 is fixedly connected to a collecting tank 3, the interior of the processing tank 1 is provided with a second collecting component 13 and a first collecting component 12 for preventing gas from entering from top to bottom, and a driving component for switching and cooperating with the second collecting component 13 and the first collecting component 12 is provided on one side of the outer wall of the processing tank 1. After the liquefied petroleum gas enters the interior of the processing tank 1, the moisture contained therein naturally settles to the bottom of the processing tank 1 and enters the interior of the collecting tank 3 through the connecting pipe 11. In the process, the first collecting component 12 and the second collecting component 13 cooperate to greatly reduce the escape of the gas.

[0013] The second collecting assembly 13 includes a mounting shell 17 fixedly connected to the inner wall of the processing tank 1, and the mounting shell 17 is set to a conical structure, a through hole is opened at the bottom of the mounting shell 17, and a water absorbing member 18 matching the shape of the mounting shell 17 is fixedly connected to the inner wall of the mounting shell 17, a first squeezing plate 21 is arranged above the water absorbing member 18, a second squeezing plate 24 is arranged on the top of the first squeezing plate 21, and a movable rod 22 is fixedly connected to the top of the second squeezing plate 24, the inner wall of the processing tank 1 is fixedly connected to the fixing plate 16, and the movable rod 22 is inserted and slidably connected to the upper part of the outer wall of the fixing plate 16, a first rotating shaft 15 is inserted and rotatably connected inside the processing tank 1, and a first cam 14 is fixedly connected to the end of the first rotating shaft 15, The outer wall of the movable rod 22 is sleeved with a spring 23. The water-absorbing member 18 can block the gas and absorb moisture at the same time. By setting it to a cone, it is more suitable for the sedimentation of the moisture contained therein. The first rotating shaft 15 is rotated to drive the first cam 14 to rotate synchronously. During the rotation of the first cam 14, the movable rod 22 is contacted and squeezed, so that it drives the second squeezing plate 24 and the first squeezing plate 21 to squeeze the water-absorbing member 18, and then the moisture contained in the water-absorbing member 18 can be squeezed. Through this setting, the gas and liquid can be separated, thereby greatly reducing the escape of the gas. At the same time, the first squeezing plate 21 can squeeze the water-absorbing member 18 and then completely squeeze out the moisture contained in the water-absorbing member 18, thereby improving the drainage efficiency. The outer wall of the first extrusion plate 21 is provided with evenly distributed receiving grooves 20, and a touch ring 19 is fixedly connected to one side of the outer wall of the receiving groove 20. A spring piece 26 is fixedly connected between the receiving groove 20 and the second extrusion plate 24. Through this arrangement, a through hole is provided in the middle of the first extrusion plate 21, and evenly distributed pressure relief holes 25 are provided on the outer wall of the first extrusion plate 21. The spring piece 26 supports the second extrusion plate 24, so that it is in a separated state from the first extrusion plate 21. At this time, the water absorbing member 18 can obtain a larger contact space, thereby improving its adsorption capacity. During the downward pressing process of the second extrusion plate 24, after the first extrusion plate 21 contacts the water absorbing member 18, the downward pressing pressure will cause the spring piece 26 to deform and be stored in the storage groove 20. At this time, the second extrusion plate 24 can be in contact with the first extrusion plate 21, thereby preventing water from overflowing from above and ensuring the discharge direction of the water. At the same time, the touch ring 19 is buried in the interior of the water absorbing member 18, thereby increasing the extrusion force. Through this arrangement, the extrusion effect is further improved while preventing water from overflowing. The first collecting component 12 includes a sealing plate 27 fixedly connected to the inner wall of the treatment tank 1, a rectangular hole is opened on the outer wall of the sealing plate 27, and a water retention plate 28 is inserted and rotatably connected to the inside of the rectangular hole through an axis. The water retention plate 28 is inclined and is connected to the sealing plate 27 by a traction member. It should be noted that the traction member is one of a tension spring, an elastic sheet and an elastic belt, which is used to form a pulling limit for the water retention plate 28 so that it can be automatically reset later. A counterweight block 29 is fixedly connected to the top of the water retention plate 28, and a sensing component 30 is arranged on one side of the outer wall of the water retention plate 28. The sensing component 30 includes a placement hole, a pressure sensor, a waterproof plastic layer and an elastic plate. A collecting bucket 31 is fixedly connected to the inner wall of the treatment tank 1, and the collecting bucket 31 is connected to the connecting pipe 11. A floating ball 32 is arranged at the opening of the collecting bucket 31. A second rotating shaft 36 is inserted and rotatably connected to the outer wall of the treatment tank 1, and the second rotating shaft 36 is inserted and extended to the sealing On the inner side of the plate 27, a fixed cylinder 34 is fixedly connected to the inner side of the blocking plate 27, and a second cam 35 is fixedly connected to the end of the second rotating shaft 36. A protruding block 37 is inserted and slidably connected to the top of the fixed cylinder 34. Baffles are fixedly connected to both sides of the outer wall of the protruding block 37. The float 32 blocks the opening of the connecting pipe 11 to prevent gas from entering, and the water retention plate 28 blocks the blocking plate 27. At this time, the squeezed water will be evenly located on the outer walls of the two water retention plates 28 after being diverted by the counterweight block 29, and gradually accumulate. When the detection threshold of the sensing component 30 is reached, the second rotating shaft 36 drives the second cam 35 to rotate, and in the process, the protruding block 37 is pushed upward, and the protruding block 37 synchronously pushes the water retention plate 28 upward, so that the accumulated water falls into the inside of the collecting bucket 31. Since the water has been accumulated in advance, it can form sufficient potential energy to impulse the float 32 and make it float, thereby opening the opening of the connecting pipe 11.

[0014] The interior of the collecting bucket 31 is fixedly connected to a support frame 33 in an inverted V structure, and a fixed block 42 is provided on the top of the support frame 33. The fixed block 42 is connected to the two water retention plates 28 respectively through two connecting ropes, and the bottom of the fixed block 42 is connected to the float 32 through a connecting rope, and the connecting rope used to connect the float 32 is inserted and slidably connected to the bottom of the support frame 33. Through the connection of the connecting rope, when the water retention plate 28 is flipped upward, the float 32 can be pulled upward synchronously, thereby ensuring that the connecting pipe 11 is in an open state, avoiding the float 32 from being stuck in the entrance of the connecting pipe 11 and preventing water from passing through. It should be noted that when the water retention plate 28 is restored, the float 32 will be continuously suspended, so that when the water is not sufficient, the liquid can still flow into the connecting pipe 11, and the float 32 in the suspended state can also be reset after being lowered.

[0015] The driving assembly includes a motor 4 fixedly connected to the outer wall of the processing tank 1 through a mounting plate, and a second ratchet mechanism 6 and a first ratchet mechanism 5 respectively arranged on the first rotating shaft 15 and the second rotating shaft 36. The second ratchet mechanism 6 and the first ratchet mechanism 5 both include a rotating block 38 rotatably connected to the outer wall of the processing tank 1. The outer wall of the rotating block 38 is provided with a ratchet hole 39. The interior of the rotating block 38 is rotatably connected with a ratchet 40, and the ratchet 40 is respectively connected to the second rotating shaft 36 and the first rotating shaft 15. The teeth of the ratchet 40 are flexible structures, and the teeth of the ratchet 40 are provided with weakened holes 41. The ratchet holes 39 inside the second ratchet mechanism 6 and the first ratchet mechanism 5 It is set in reverse, and a driving pulley 8 is fixedly connected to the outer wall of the rotating block 38 located in the first ratchet mechanism 5, and the driving pulley 8 is connected to the output end of the motor 4. A driven pulley 7 is fixedly connected to the outer wall of the rotating block 38 located on the second ratchet mechanism 6, and a belt is tensioned between the driving pulley 8 and the driven pulley 7. The motor 4 drives the driving pulley 8 and the driven pulley 7 to rotate synchronously, thereby driving the first ratchet mechanism 5 and the second ratchet mechanism 6 to rotate synchronously. Because the ratchet holes 39 on the first ratchet mechanism 5 and the second ratchet mechanism 6 are set in reverse, the second rotating shaft 36 and the first rotating shaft 15 can be driven separately according to the different rotation directions.

[0016] Working principle: The water absorbing member 18 can block the gas and absorb water at the same time. By setting it into a conical shape, it is more suitable for the sedimentation of the water contained therein. The first rotating shaft 15 is rotated to drive the first cam 14 to rotate synchronously. During the rotation of the first cam 14, the movable rod 22 is contacted and squeezed, so that the second squeezing plate 24 and the first squeezing plate 21 are driven to squeeze the water absorbing member 18, and then the water contained in the water absorbing member 18 can be squeezed. Through this setting, the gas and liquid can be separated, thereby greatly reducing the escape of the gas. At the same time, the first squeezing plate 21 can squeeze the water absorbing member 18 and completely squeeze out the water contained in the water absorbing member 18, thereby improving the drainage efficiency. The spring sheet 26 supports the second extrusion plate 24 so that it is separated from the first extrusion plate 21. At this time, the water absorbent 18 can obtain a larger contact space, thereby improving its adsorption capacity. When the second extrusion plate 24 is pressed down, after the first extrusion plate 21 contacts the water absorbent 18, the downward pressure will cause the spring sheet 26 to deform and be stored in the storage groove 20. At this time, the second extrusion plate 24 can be in contact with the first extrusion plate 21, thereby preventing water from overflowing from above and ensuring the discharge direction of water. At the same time, the touch ring 19 is buried in the water absorbent 18, thereby increasing the extrusion force. Through this arrangement, the extrusion effect is further improved while preventing water from overflowing. The float 32 blocks the opening of the connecting pipe 11 to prevent gas from entering, and the water retention plate 28 blocks the blocking plate 27. At this time, the squeezed water is evenly distributed on the outer walls of the two water retention plates 28 after being diverted by the counterweight block 29, and gradually accumulates. When the detection threshold of the sensing component 30 is reached, the second rotating shaft 36 drives the second cam 35 to rotate, and in the process, the extending block 37 is pushed upward, and the extending block 37 synchronously pushes the water retention plate 28 upward, so that the accumulated water falls into the inside of the collecting bucket 31. Since the water has been accumulated in advance, it can form sufficient potential energy to impulse the float 32 and make it float, thereby opening the opening of the connecting pipe 11. Through the connection of the connecting rope, when the water retention plate 28 flips upward, the float 32 can be pulled upward synchronously, thereby ensuring that the connecting pipe 11 is in an open state, preventing the float 32 from being stuck in the entrance of the connecting pipe 11 and preventing water from passing through. It should be noted that when the water retention plate 28 is restored, the float 32 will be continuously suspended, so that when the water is not sufficient, the liquid can still flow into the connecting pipe 11, and the float 32 in the suspended state can also be reset after being lowered.

[0017] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. A liquefied petroleum gas dehydrator, comprising a processing tank (1), characterized in that: The bottom of the processing tank (1) is fixedly connected to a support seat (2), the top of the processing tank (1) is fixedly connected to an inlet bucket (9), a connecting pipe (11) is inserted into and fixedly connected to the bottom of the processing tank (1), the connecting pipe (11) and the inlet bucket (9) are both provided with control valves (10), the bottom of the connecting pipe (11) is fixedly connected to a collecting tank (3), the inside of the processing tank (1) is provided with a second collecting component (13) and a first collecting component (12) for preventing gas from entering, and a driving component for switching and cooperating with the second collecting component (13) and the first collecting component (12) is provided on one side of the outer wall of the processing tank (1).

2. A liquefied petroleum gas dehydrator according to claim 1, characterized in that: The second collecting assembly (13) comprises a mounting shell (17) fixedly connected to the inner wall of the processing tank (1), and the mounting shell (17) is arranged to be a conical structure, a through hole is provided at the bottom of the mounting shell (17), a water absorbing member (18) which is adapted to the shape of the mounting shell (17) is fixedly connected to the inner wall of the mounting shell (17), a first extrusion plate (21) is arranged above the water absorbing member (18), a second extrusion plate (24) is arranged on the top of the first extrusion plate (21), a movable rod (22) is fixedly connected to the top of the second extrusion plate (24), the inner wall of the processing tank (1) is fixedly connected to a fixing plate (16), and the movable rod (22) is inserted and slidably connected to the top of the outer wall of the fixing plate (16), a first rotating shaft (15) is inserted and rotatably connected inside the processing tank (1), a first cam (14) is fixedly connected to the end of the first rotating shaft (15), and a spring (23) is sleeved on the outer wall of the movable rod (22).

3. A liquefied petroleum gas dehydrator according to claim 2, characterized in that: The outer wall of the first extrusion plate (21) is provided with evenly distributed receiving grooves (20), one side of the outer wall of the receiving groove (20) is fixedly connected to a touch ring (19), and a spring sheet (26) is fixedly connected between the receiving groove (20) and the second extrusion plate (24).

4. A liquefied petroleum gas dehydrator according to claim 2, characterized in that: A through hole is provided in the middle of the first extrusion plate (21), and evenly distributed pressure relief holes (25) are provided on the outer wall of the first extrusion plate (21).

5. A liquefied petroleum gas dehydrator according to claim 2, characterized in that: The first collecting component (12) comprises a blocking plate (27) fixedly connected to the inner wall of the processing tank (1); a rectangular hole is formed on the outer wall of the blocking plate (27); a water retention plate (28) is inserted into the interior of the rectangular hole through an axis and is rotatably connected; the water retention plate (28) is arranged obliquely; the water retention plate (28) is connected to the blocking plate (27) by a traction member; a counterweight (29) is fixedly connected to the top of the water retention plate (28); a sensing component (30) is provided on one side of the outer wall of the water retention plate (28); the sensing component (30) comprises a placement hole, a pressure sensor, a waterproof plastic layer and an elastic plate; the inner wall of the processing tank (1) is fixedly connected to the inner wall of the processing tank (1); A collecting bucket (31) is fixedly connected thereto, the collecting bucket (31) being in communication with the connecting pipe (11), a floating ball (32) being arranged at the opening of the collecting bucket (31), a second rotating shaft (36) being inserted into and rotatably connected to the outer wall of the processing tank (1), and the second rotating shaft (36) being inserted into and extending to the inner side of the blocking plate (27), a fixing cylinder (34) being fixedly connected to the inner side of the blocking plate (27), a second cam (35) being fixedly connected to the end of the second rotating shaft (36), a protruding block (37) being inserted into and slidably connected to the top of the fixing cylinder (34), and baffles being fixedly connected to both sides of the outer wall of the protruding block (37).

6. A liquefied petroleum gas dehydrator according to claim 5, characterized in that: A support frame (33) in an inverted V structure is fixedly connected inside the collecting bucket (31), a fixing block (42) is arranged on the top of the support frame (33), the fixing block (42) is respectively connected to the two water retention plates (28) via two connecting ropes, the bottom of the fixing block (42) is connected to the floating ball (32) via a connecting rope, and the connecting rope used to connect the floating ball (32) is inserted and slidably connected to the bottom of the support frame (33).

7. A liquefied petroleum gas dehydrator according to claim 5, characterized in that: The driving assembly comprises a motor (4) fixedly connected to the outer wall of the processing tank (1) via a mounting plate, and a second ratchet mechanism (6) and a first ratchet mechanism (5) respectively arranged on the first rotating shaft (15) and the second rotating shaft (36), the second ratchet mechanism (6) and the first ratchet mechanism (5) both comprising a rotating block (38) rotatably connected to the outer wall of the processing tank (1), the outer wall of the rotating block (38) being provided with a ratchet hole (39), the interior of the rotating block (38) being rotatably connected with a ratchet (40), and the ratchet (40) being respectively connected to the second rotating shaft (36) and the first rotating shaft (15). 5), the teeth of the ratchet (40) are of a flexible structure, a weakened hole (41) is provided on the teeth of the ratchet (40), the ratchet hole (39) inside the second ratchet mechanism (6) and the first ratchet mechanism (5) are arranged in opposite directions, a driving pulley (8) is fixedly connected to the outer wall of a rotating block (38) in the first ratchet mechanism (5), and the driving pulley (8) is connected to the output end of the motor (4), a driven pulley (7) is fixedly connected to the outer wall of a rotating block (38) on the second ratchet mechanism (6), and a belt is provided on the tensioning sleeve between the driving pulley (8) and the driven pulley (7).

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