SF6 recovery device with cold source control

Abstract

The utility model discloses an SF6 (sulfur hexafluoride) recovery device with cold source control, which belongs to the technical field of SF6 gas recovery and purification and comprises a moving trolley, and a purification component for recovering SF6 gas is mounted at the upper end of the moving trolley; the purification assembly comprises a recovery assembly and a condensation heating assembly, the recovery assembly is mounted at the upper end of the moving trolley, and the condensation heating assembly is mounted in the recovery assembly; a purification assembly for removing moisture in the SF6 gas is mounted at the upper end of the purification assembly; and an exhaust assembly for exhausting SF6 gas is mounted at the rear end of the purification assembly. By means of the mode, SF6 gas can be condensed into a liquid state or a solid state through the condensation heating assembly according to requirements, and safety is improved; moisture in the SF6 gas is removed through the absorbent cotton plate, and when the absorbent cotton plate absorbs water to be saturated, the absorbent cotton plate can be replaced; multi-air-chamber inflation equipment or multiple inflation equipment can be inflated at the same time, efficiency is high, and time is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of SF6 gas recovery and purification, in particular to an SF6 recovery device with cold source control. Background Art

[0002] Sulfur hexafluoride (SF6) is a colorless, odorless, non-toxic gas with excellent insulating and arc-extinguishing properties. It is widely used in high-voltage electrical equipment in the power industry, such as high-voltage switches, transformers, and insulators.

[0003] Chinese patent CN220170982U discloses a gas recovery detection control device, including a gas storage tank, with a recovery gas pipe and a backfill gas pipe provided on the side of the gas storage tank, including: a spare tank, which is arranged on the side of the gas storage tank; a fixed platform, which is fixed between the gas storage tank and the spare tank; a first air pump, which is fixed to the top of the fixed platform; an air outlet structure, which is arranged at the air outlet end of the first air pump and connected to the gas storage tank; a first air inlet pipe, one end of which is connected to the gas storage tank, and the other end is connected to the air inlet end of the first air pump through a detection structure; and an air supply structure, which is arranged between the gas storage tank and the spare tank.

[0004] However, the patent only has one return air pipe, which cannot inflate multiple air chamber inflation devices at the same time, resulting in low efficiency.

[0005] Based on this, the utility model designs an SF6 recovery device with cold source control to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides an SF6 recovery device with cold source control.

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] An SF6 recovery device with cold source control includes a mobile trolley;

[0009] The upper end of the mobile vehicle is equipped with a purification component for recovering SF6 gas;

[0010] The purification component includes a recovery component and a condensation heating component, the recovery component is installed on the upper end of the mobile vehicle, and the condensation heating component is installed inside the recovery component;

[0011] A purification component for removing moisture from SF6 gas is installed on the upper end of the purification component;

[0012] An exhaust assembly for discharging SF6 gas is installed at the rear end of the purification assembly.

[0013] Furthermore, the recycling component includes a recycling box, an air intake pipe, an exhaust pipe, a fixing plate, a reversible air pump, a ventilation pipe and a connecting pipe. The upper end of the recycling box on the left is fixedly connected to the air intake pipe, the upper end of the recycling box is fixedly connected to the exhaust pipe, the exhaust pipe is fixedly connected to the air intake end of the external air pump, the rear end of the recycling box is fixedly connected to the fixing plate, the upper end of the fixing plate is fixedly connected to the reversible air pump, one output end of the reversible air pump is fixedly connected to the ventilation pipe, the ventilation pipe is fixedly connected to the recycling box on the left, the other output end of the reversible air pump is fixedly connected to the connecting pipe, and the connecting pipe is fixedly connected to the recycling box on the right.

[0014] Furthermore, two sets of recycling bins are fixedly connected to the left and right sides of the upper end of the mobile cart respectively.

[0015] Furthermore, the condensing and heating component, the purification component and the exhaust component are all connected to the recovery box.

[0016] Furthermore, the condensing heating assembly includes a condensing tube, a heating tube and a placement table. The condensing tube is fixedly connected to the inner wall of the recycling box, the heating tube is fixedly connected to the inner wall of the lower end of the recycling box, and the placement table is also fixedly connected to the inner wall of the lower end of the recycling box on the right side. The outer wall of the upper end of the placement table is in contact with the inner wall of the recycling box.

[0017] Furthermore, the purification component includes a slide, a U-shaped frame, a slot, a water-absorbing cotton board, a fixed column and a limit plate. A slide is provided on the upper left end of the left recycling box, the U-shaped frame is embedded in the slide and slidably connected to the slide, a slot is provided on the U-shaped frame, the water-absorbing cotton board is embedded in the slot and plugged into the slot, a fixed column is fixedly connected to the upper left end of the left recycling box, the fixed column is rotatably connected to the limit plate, the limit plate is in contact with the U-shaped frame, and the cotton board is in contact with the inner wall of the right end of the slide.

[0018] Furthermore, the connection between the vent pipe and the recovery tank on the left side is located below the slot.

[0019] Furthermore, a handle is fixedly connected to the left end of the U-shaped frame.

[0020] Furthermore, the exhaust assembly includes an electric cylinder, a connecting plate, exhaust holes, an exhaust pipe, a sealing block and a limit groove. A limit groove is opened at the right end of the connecting plate, and a plurality of exhaust holes connected to the recovery box are opened on the inner wall of the front end of the limit groove. The sealing block is fitted and slidably connected to the limit groove. A plurality of exhaust pipes corresponding to the exhaust holes are fixedly connected to the rear end of the connecting plate, and the output end of the electric cylinder is fixedly connected to the right end of the sealing block.

[0021] Furthermore, the electric cylinder is fixedly connected to the rear end of the recycling box on the right side, and the connecting plate is fixedly connected to the rear end of the recycling box on the left side.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The utility model can condense SF6 gas into liquid or solid state through the condensation heating component according to demand. If only SF6 gas needs to be purified, the condensation heating component on the left side condenses the SF6 gas after the moisture is removed and condenses the SF6 gas into liquid state. When SF6 needs to be transported or is not needed for a long time, the SF6 gas after the moisture is removed in the left recovery component is passed into the right recovery component, and the condensation heating component on the right side condenses the SF6 gas after the moisture is removed and condenses the SF6 gas into solid state. Solid SF6 is stable at room temperature and will not leak due to container rupture, so it is highly safe.

[0024] The utility model removes moisture from SF6 gas through a water-absorbing cotton board, and the water-absorbing cotton board can be replaced when it is saturated with water;

[0025] The utility model can inflate multi-chamber inflatable equipment or multiple inflatable equipment at the same time, has high efficiency and saves time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be derived from these drawings without inventive effort.

[0027] Figure 1 This is a three-dimensional SF6 recovery device with cold source control. Figure 1 ;

[0028] Figure 2 This is a front view of an SF6 recovery device with cold source control according to the present invention;

[0029] Figure 3 This is a left view of an SF6 recovery device with cold source control according to the present invention;

[0030] Figure 4 This is a three-dimensional SF6 recovery device with cold source control. Figure 2 ;

[0031] Figure 5 To follow Figure 2 AA direction cross-sectional view;

[0032] Figure 6 To follow Figure 3 BB direction cross-sectional view.

[0033] The numbers in the figure represent:

[0034] 1. Mobile trolley; 2. Purification component; 21. Recovery component; 211. Recovery box; 212. Inlet pipe; 213. Exhaust pipe; 214. Fixed plate; 215. Reversible air pump; 216. Ventilation pipe; 217. Connecting pipe; 22. Condensation heating component; 221. Condensation pipe; 222. Heating pipe; 223. Placement table; 3. Purification component; 31. Slide; 32. U-shaped frame; 33. Slot; 34. Absorbent cotton board; 35. Fixed column; 36. Limit plate; 4. Exhaust component; 41. Electric cylinder; 42. Connecting plate; 43. Exhaust hole; 44. Exhaust pipe; 45. Sealing block; 46. Limit groove. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0036] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0037] Example 1

[0038] In some embodiments, please refer to the appendix of the specification. Figure 1-6 , an SF6 recovery device with cold source control, comprising a mobile trolley 1;

[0039] The upper end of the mobile vehicle 1 is equipped with a purification component 2 for recovering SF6 gas;

[0040] The purification component 2 includes a recovery component 21 and a condensation heating component 22. The recovery component 21 is installed on the upper end of the mobile vehicle 1, and the condensation heating component 22 is installed inside the recovery component 21.

[0041] A purification component 3 for removing moisture from SF6 gas is installed on the upper end of the purification component 2;

[0042] An exhaust component 4 for discharging SF6 gas is installed at the rear end of the purification component 2.

[0043] During use, SF6 gas is passed into the recovery component 21 on the left, and the SF6 gas first passes through the purification component 3 to remove moisture from the SF6 gas, and then the SF6 gas is condensed into a liquid or solid state through the condensation and heating component 22 as needed. If only SF6 gas needs to be purified, the condensation and heating component 22 on the left condenses the SF6 gas after the moisture is removed and condenses the SF6 gas into a liquid. When SF6 needs to be transported or is not needed for a long time, the SF6 gas after the moisture is removed in the left recovery component 21 is passed into the recovery component 21 on the right, and the condensation and heating component 22 on the right condenses the SF6 gas after the moisture is removed and condenses the SF6 gas into a solid state. Solid SF6 is stable at room temperature and will not leak due to container rupture, and is highly safe. When SF6 needs to be used, the liquid or solid SF6 is heated by the condensation and heating component 22 to restore it to gas, and then discharged from the recovery component 21 through the exhaust component 4. By setting the exhaust component 4, multiple gas chamber inflation equipment can be inflated at the same time, which is efficient and saves time.

[0044] The recycling assembly 21 includes a recycling box 211, an air intake pipe 212, an air extraction pipe 213, a fixing plate 214, a reversible air pump 215, a ventilation pipe 216 and a connecting pipe 217. The upper end of the recycling box 211 on the left is fixedly connected to the air intake pipe 212, and the upper end of the recycling box 211 is fixedly connected to the air extraction pipe 213. The air extraction pipe 213 is fixedly connected to the air intake end of the external air pump. The rear end of the recycling box 211 is fixedly connected to the fixing plate 214, and the upper end of the fixing plate 214 is fixedly connected to the reversible air pump 215. One output end of the reversible air pump 215 is fixedly connected to the ventilation pipe 216. The ventilation pipe 216 is fixedly connected to the recycling box 211 on the left, and the other output end of the reversible air pump 215 is fixedly connected to the connecting pipe 217. The connecting pipe 217 is fixedly connected to the recycling box 211 on the right.

[0045] The two sets of recovery boxes 211 are fixedly connected to the left and right sides of the upper end of the mobile vehicle 1 respectively.

[0046] The condensation heating component 22 , the purification component 3 and the exhaust component 4 are all connected to the recovery box 211 .

[0047] The condensing and heating assembly 22 includes a condensing tube 221, a heating tube 222 and a placement table 223. The condensing tube 221 is fixedly connected to the inner wall of the recovery box 211, and the heating tube 222 is fixedly connected to the inner wall of the lower end of the recovery box 211. The placement table 223 is also fixedly connected to the inner wall of the lower end of the recovery box 211 on the right side, and the outer wall of the upper end of the placement table 223 is in contact with the inner wall of the recovery box 211.

[0048] During recycling, the SF6 gas is introduced into the recovery box 211 on the left through the air inlet pipe 212. The purification component 3 first removes moisture from the SF6 gas, and then the condenser 221 condenses the SF6 gas into liquid or solid according to demand to improve safety.

[0049] When only SF6 gas needs to be purified, the condenser pipe 221 on the left condenses the SF6 gas after the moisture is removed, condensing the SF6 gas into a liquid state. The condensed SF6 is separated from the remaining gas, and the remaining gas in the recovery box 211 is extracted through the exhaust pipe 213, thereby achieving the purpose of purifying SF6. When SF6 needs to be used, the heating pipe 222 on the left heats the liquid SF6 to restore it to a gaseous state, and then it can be discharged from the exhaust assembly 4;

[0050] When SF6 needs to be transported or is not needed for a long time, the reversible air pump 215 is started. The reversible air pump 215 sucks the SF6 gas in the left recovery box 211 into the right recovery box 211 through the vent pipe 216 and the connecting pipe 217. Then the right heating pipe 222 condenses the SF6 gas after the moisture is removed. The condensed SF6 falls into the placement table 223. The solid SF6 is stable at room temperature and will not leak due to the rupture of the container. It is highly safe. When the transportation is completed or it needs to be used, the right heating pipe 222 heats the solid SF6 to restore it to a gaseous state. Then the reversible air pump 215 sucks the SF6 gas in the right recovery box 211 into the left recovery box 211 through the connecting pipe 217 and the vent pipe 216, and finally discharges it from the exhaust component 4.

[0051] The purification component 3 includes a slide 31, a U-shaped frame 32, a slot 33, a water-absorbing cotton board 34, a fixed column 35 and a limit plate 36. A slide 31 is provided on the upper left end of the recycling box 211 on the left side, the U-shaped frame 32 is embedded in the slide 31 and is slidably connected to the slide 31, a slot 33 is provided on the U-shaped frame 32, the water-absorbing cotton board 34 is embedded in the slot 33 and plugged into the slot 33, a fixed column 35 is fixedly connected to the upper left end of the recycling box 211 on the left side, and the fixed column 35 is rotatably connected to the limit plate 36. The limit plate 36 is in contact with the U-shaped frame 32, and the cotton board is in contact with the inner wall of the right end of the slide 31.

[0052] The connection between the vent pipe 216 and the recovery box 211 on the left is located below the slot 33, ensuring that the SF6 gas sucked into the recovery box 211 on the right by the reversible air pump 215 is the SF6 gas from which moisture has been removed.

[0053] When removing moisture, the SF6 gas introduced into the left recovery box 211 first passes through the absorbent cotton plate 34, and the absorbent cotton plate 34 removes moisture from the SF6 gas. When the absorbent cotton plate 34 is saturated with water, the limit plate 36 is rotated to separate the limit plate 36 from the U-shaped frame 32, and the U-shaped frame 32 is pulled to the left to separate the U-shaped frame 32 from the chute 31, and then the absorbent cotton plate 34 is pulled to the right to separate the absorbent cotton plate 34 from the slot 33, and a new absorbent cotton plate 34 is reinserted into the slot 33, and then the U-shaped frame 32 is reinserted into the chute 31, and the limit plate 36 is released. The limit plate 36 rotates and resets under the action of gravity to realize the limitation of the U-shaped frame 32, and the absorbent cotton plate 34 is limited by the joint action of the U-shaped frame 32, the slot 33 and the inner wall of the right end of the chute 31;

[0054] Preferably, a handle is fixedly connected to the left end of the U-shaped frame 32.

[0055] The exhaust assembly 4 includes an electric cylinder 41, a connecting plate 42, an exhaust hole 43, an exhaust pipe 44, a sealing block 45 and a limiting groove 46. A limiting groove 46 is provided at the right end of the connecting plate 42. A plurality of exhaust holes 43 communicating with the recovery box 211 are provided on the inner wall of the front end of the limiting groove 46. The sealing block 45 is fitted and slidably connected to the limiting groove 46. A plurality of exhaust pipes 44 corresponding to the exhaust holes 43 are fixedly connected to the rear end of the connecting plate 42. The output end of the electric cylinder 41 is fixedly connected to the right end of the sealing block 45.

[0056] The electric cylinder 41 is fixedly connected to the rear end of the recovery box 211 on the right side, and the connecting plate 42 is fixedly connected to the rear end of the recovery box 211 on the left side.

[0057] When exhausting, according to the number of inflatable devices required or the number of air chambers in the inflatable device, the electric cylinder 41 drives the sealing block 45 to move a certain distance to the right under the limiting action of the connecting plate 42 and the limiting groove 46, so that the corresponding number of exhaust holes 43 and the exhaust pipe 44 are connected, so as to achieve the simultaneous inflation of multi-chamber inflatable devices or multiple inflatable devices, which is highly efficient and saves time.

[0058] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An SF6 recovery device with cold source control, comprising a mobile trolley (1), characterized in that: A purification component (2) for recovering SF6 gas is installed on the upper end of the mobile vehicle (1); The purification component (2) includes a recovery component (21) and a condensation heating component (22), the recovery component (21) is installed on the upper end of the mobile vehicle (1), and the condensation heating component (22) is installed inside the recovery component (21); A purification component (3) for removing moisture from SF6 gas is installed at the upper end of the purification component (2); An exhaust assembly (4) for exhausting SF6 gas is installed at the rear end of the purification assembly (2).

2. The SF6 recovery device with cold source control according to claim 1, characterized in that: The recovery assembly (21) includes a recovery box (211), an air intake pipe (212), an air extraction pipe (213), a fixing plate (214), a reversible air pump (215), a vent pipe (216) and a connecting pipe (217). The upper end of the recovery box (211) on the left side is fixedly connected to the air intake pipe (212). The upper end of each recovery box (211) is fixedly connected to the air extraction pipe (213). The air extraction pipe (213) is fixedly connected to the air intake end of the external air pump. The rear ends of the (211) are fixedly connected to the fixed plate (214), the upper end of the fixed plate (214) is fixedly connected to a reversible air pump (215), one output end of the reversible air pump (215) is fixedly connected to a vent pipe (216), the vent pipe (216) is fixedly connected to the recovery box (211) on the left, the other output end of the reversible air pump (215) is fixedly connected to a connecting pipe (217), and the connecting pipe (217) is fixedly connected to the recovery box (211) on the right.

3. The SF6 recovery device with cold source control according to claim 2, characterized in that: The two sets of recycling boxes (211) are respectively fixedly connected to the left and right sides of the upper end of the mobile trolley (1).

4. The SF6 recovery device with cold source control according to claim 3, characterized in that: The condensation heating component (22), the purification component (3) and the exhaust component (4) are all connected to the recovery box (211).

5. The SF6 recovery device with cold source control according to claim 4, characterized in that: The condensation heating assembly (22) comprises a condensation tube (221), a heating tube (222) and a placement table (223); the condensation tube (221) is fixedly connected to the inner wall of the recovery box (211); the heating tube (222) is fixedly connected to the inner wall of the lower end of the recovery box (211); the placement table (223) is also fixedly connected to the inner wall of the lower end of the right recovery box (211); the outer wall of the upper end of the placement table (223) is in contact with the inner wall of the recovery box (211).

6. The SF6 recovery device with cold source control according to claim 5, characterized in that: The purification component (3) includes a chute (31), a U-shaped frame (32), a slot (33), a water-absorbing cotton board (34), a fixed column (35) and a limit plate (36). The left upper end of the recycling box (211) on the left side is provided with a chute (31), the U-shaped frame (32) is embedded in the chute (31) and is slidably connected to the chute (31), the U-shaped frame (32) is provided with a slot (33), the water-absorbing cotton board (34) is embedded in the slot (33) and is plugged into the slot (33), the left upper end of the recycling box (211) on the left side is fixedly connected with a fixed column (35), the fixed column (35) is rotatably connected to the limit plate (36), the limit plate (36) is in contact with the U-shaped frame (32), and the cotton board (34) is in contact with the inner wall of the right end of the chute (31).

7. The SF6 recovery device with cold source control according to claim 6, characterized in that: The connection between the vent pipe (216) and the recovery box (211) on the left side is located below the slot (33).

8. The SF6 recovery device with cold source control according to claim 7, characterized in that: The left end of the U-shaped frame (32) is fixedly connected with a handle.

9. The SF6 recovery device with cold source control according to claim 8, characterized in that: The exhaust assembly (4) comprises an electric cylinder (41), a connecting plate (42), an exhaust hole (43), an exhaust pipe (44), a sealing block (45) and a limiting groove (46). The right end of the connecting plate (42) is provided with a limiting groove (46). The inner wall of the front end of the limiting groove (46) is provided with a plurality of exhaust holes (43) connected to the recovery box (211). The sealing block (45) is fitted and slidably connected to the limiting groove (46). The rear end of the connecting plate (42) is fixedly connected with a plurality of exhaust pipes (44) arranged in a one-to-one correspondence with the exhaust holes (43). The output end of the electric cylinder (41) is fixedly connected to the right end of the sealing block (45).

10. The SF6 recovery device with cold source control according to claim 9, characterized in that: The electric cylinder (41) is fixedly connected to the rear end of the recycling box (211) on the right side, and the connecting plate (42) is fixedly connected to the rear end of the recycling box (211) on the left side.

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