CN221713905U - A helium recovery system - Google Patents

Abstract

The utility model discloses a helium recovery system, comprising: a case; the inside baffle that is provided with of box, baffle is with box internal partition into first space and second space, the inside in first space is provided with the filter screen board, the filter screen board is with first district and second district with first space partition, the lateral wall that the box corresponds first district is provided with the intake pipe, the baffle corresponds the position in second district and is provided with the gas port, gas port intercommunication second district and second space, be provided with the air hole board in the second space, the active carbon case, purification device and compressor, one side towards the gas port of air hole board is provided with the brush hair, the active carbon case is located the air outlet side of air hole board, the air outlet side of active carbon case is provided with the gas collecting bucket, the gas collecting bucket is connected with purification device, purification device is connected with the compressor, the compressor is provided with the outlet duct, the outlet duct wears out the box. The helium recovery system has a simple structure, and can remove impurities and recover helium.

Description

A helium recovery system

Technical Field

The utility model relates to the technical field of helium recovery, in particular to a helium recovery system.

Background Art

In the field of industrial helium leak detection, the use of helium is becoming more and more common, and the amount of use is also increasing. In order to reduce industrial production costs and save energy, the used helium is recycled and used again or multiple times to increase the utilization rate of helium. This system that can recycle and reuse the used helium is called a helium recovery system.

The recycled raw gas may contain large particles, dust, fluff and even toxic gases. When recovering helium, these impurities will enter the recovery system together with the helium, affecting the recovery concentration of helium and even affecting the reuse of the recovered helium. Over time, it will also damage the recovery equipment. The existing helium recovery equipment does not solve these impurities and toxic gases well.

Therefore, it is necessary to design a helium recovery system that can solve the aforementioned impurities.

Utility Model Content

In view of the above problems existing in the prior art, a helium recovery system is provided.

The specific technical solutions are as follows:

A helium recovery system mainly comprises: a box;

A partition is provided inside the box body, and the partition divides the inside of the box body into a first space and a second space. A filter screen is provided inside the first space, and the filter screen divides the first space into a first area and a second area. An air inlet pipe is provided on the side wall of the box body corresponding to the first area, and an air port is provided at a position of the partition corresponding to the second area, and the air port connects the second area with the second space. An air hole plate, an activated carbon box, a purification device and a compressor are provided in the second space. Bristles are provided on the side of the air hole plate facing the air port. The activated carbon box is located on the air outlet side of the air hole plate. An air collecting hopper is provided on the air outlet side of the activated carbon box, and the air collecting hopper is connected to the purification device, and the purification device is connected to the compressor. The compressor is provided with an air outlet pipe, and the air outlet pipe passes through the box body.

The above-mentioned helium recovery system also has the following characteristics: the purification device includes a purification tank and a mixing tank, one end of the purification tank is connected to the gas collecting hopper, the other end of the purification tank is connected to the mixing tank, and the mixing tank is connected to the compressor.

The above-mentioned helium recovery system also has the feature that a purification membrane is arranged in the purification tank.

The above-mentioned helium recovery system also has the following feature: an exhaust valve is provided on the purification tank, and the exhaust valve is provided with an exhaust pipe, and the exhaust pipe passes through the box body.

The above-mentioned helium recovery system also has the following feature: one end of the air hole plate is inserted into the partition plate, and the other end of the air hole plate is installed on the side wall of the box body.

The above-mentioned helium recovery system also has the following feature: a socket for inserting the air hole plate is provided on the side wall of the box body, and a cover plate is provided at the socket.

The above-mentioned helium recovery system also has the following feature: a window for inserting the activated carbon box is provided on the side wall of the box body, and the activated carbon box is inserted into the box body through the window.

The positive effects of the above technical solution are:

The utility model provides a helium recovery system, which first filters out larger particle impurities in raw gas through a filter screen plate, and introduces helium into a second space, so as to prevent the particle impurities from damaging subsequent structures and affecting the recovery efficiency of helium; the bristles on the air hole plate can adsorb lint and dust in the helium, effectively remove impurities in the recovered helium, and improve the purity of the helium; the activated carbon box can effectively remove impurities and poisonous gases in the recovered helium again; the activated carbon box is plugged in to facilitate the replacement of activated carbon; the treated gas enters the purification device to realize the recovery of helium; the compressor pressurizes the helium, and the consumption rate of helium is reduced to the greatest extent possible; the entire system has a simple structure and can both remove impurities and recover helium.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a helium recovery system provided by the utility model.

In the attached drawings: 1. box body; 2. partition; 21. air port; 3. filter screen; 4. air inlet pipe; 5. air hole plate; 51. bristles; 6. activated carbon box; 61. handle; 7. compressor; 8. air collecting hopper; 9. air outlet pipe; 10. cover plate; 11. purification tank; 111. purification membrane; 12. mixing tank; 13. exhaust valve; 14. exhaust pipe.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below through embodiments and in combination with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned in this application, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present utility model, it should be understood that the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

Please refer to FIG1 , the utility model discloses a helium recovery system, which includes: a box 1;

A partition 2 is arranged inside the box body 1, and the partition 2 divides the inside of the box body 1 into a first space and a second space. A filter screen plate 3 is arranged inside the first space, and the filter screen plate 3 divides the first space into a first zone and a second zone. An air inlet pipe 4 is arranged on the side wall of the box body 1 corresponding to the first zone, and an air port 21 is arranged at the position of the partition 2 corresponding to the second zone, and the air port 21 connects the second zone with the second space. An air hole plate 5, an activated carbon box 6, a purification device and a compressor 7 are arranged in the second space. Bristles 51 are arranged on the side of the air hole plate 5 facing the air port 21, the activated carbon box 6 is located on the air outlet side of the air hole plate 5, and an air collecting hopper 8 is arranged on the air outlet side of the activated carbon box 6, and the air collecting hopper 8 is connected to the purification device, and the purification device is connected to the compressor 7. The compressor 7 is provided with an air outlet pipe 9, and the air outlet pipe 9 passes through the box body 1.

Specifically, as shown in FIG1 , the partition 2 is vertically arranged in the box body 1, and the box body 1 is divided into two spaces on the left and right, the left side is the first space, and the right side is the second space. The setting of the filter screen plate 3 divides the first space into a first area and a second area, the lower side is the first area, and the upper side is the second area. The raw gas enters the first area in the box body 1 from the air inlet pipe 4, and the filter screen plate 3 will filter and block the large particles of impurities in the helium in the first area, and then the raw gas passes through the filter screen plate 3 to enter the second area. Preferably, an air pump (not shown in the figure) is arranged at the air inlet pipe 4 to accelerate the flow of the raw gas. The raw gas entering the second area enters the second space through the air port 21. The air hole plate 5 is a plate structure with air holes. When the raw gas passes through the bristles 51 on the air hole plate 5, the bristles 51 will adsorb the hair, dust, etc. in the helium. Optionally, in order to clean the bristles 51, in this embodiment, one end of the pore plate 5 is inserted into the partition 2, and the other end of the pore plate 5 is installed on the side wall of the box 1. The pore plate 5 can be inserted into the box 1 horizontally, and can also be pulled out horizontally to facilitate cleaning or replacement of the pore plate 5. Preferably, the partition 2 is provided with a groove, one end of the pore plate 5 can be inserted into the groove, and the side wall of the box 1 is provided with a socket for inserting the pore plate 5. Further, in order to achieve a sealing setting, a cover plate 10 is provided at the socket, and the cover plate 10 is sealed with the socket, for example, it can be sealed by a sealing ring and connected by fasteners such as screws. Among them, slots are provided on the two side walls of the box 1 adjacent to and intersecting the partition 2, and the two sides of the pore plate 5 are inserted into the groove of the partition 2 along the slots. Optionally, the bristles 51 and the pore plate 5 can be an integrated structure or a split structure. The setting of the split structure can only replace the bristles 51 without replacing the pore plate 5. The partition 2 is provided with a slot, and the side wall of the box body 1 is provided with a window for inserting the activated carbon box 6. The activated carbon box 6 is inserted into the box body 1 through the window and enters the slot of the partition 2. The activated carbon box 6 has a handle 61, and the handle 61 is exposed to the box body 1, so that the activated carbon box 6 can be easily taken out for replacement. When the raw gas passes through the activated carbon box 6, the activated carbon will adsorb the impurities in the gas again, and can also adsorb the toxic gas in the gas, effectively reducing the impurities in the raw gas.

Further, the purification device includes a purification tank 11 and a mixing tank 12, one end of the purification tank 11 is connected to the gas collecting hopper 8, and the other end of the purification tank 11 is connected to the mixing tank 12. Among them, a purification membrane 111 is arranged in the purification tank 11. The purification membrane 111 separates the inlet and outlet of the purification tank 11, and the gas collecting hopper 8 directly collects the gas coming out of the activated carbon box 6 and sends it into the purification tank 11. The helium molecules in the gas can pass through the purification membrane 111 and enter the mixing tank 12. In order to discharge other gases except helium, in this embodiment, an exhaust valve 13 is arranged on the purification tank 11, and the exhaust valve 13 is provided with an exhaust pipe 14, and the exhaust pipe 14 passes through the box body 1. Other gases except helium can be discharged through the exhaust valve 13 and the exhaust pipe 14, which can not only maintain the air pressure balance in the system, but also can carry out targeted recovery of helium, thereby reducing the waste of helium. The compressor 7 pressurizes the helium to minimize the consumption rate of helium. The whole system has a simple structure and can remove impurities and recover helium.

Optionally, a concentration detector (not shown in the figure) and a valve (not shown in the figure) are provided on the outlet pipe 9. The concentration detector detects the concentration of helium in the discharged gas. If the concentration meets the standard, the valve is controlled to open so that the gas can flow out for storage. If the concentration does not meet the standard, the valve is controlled to remain closed so that the gas cannot flow out. The front air inlet pipe 4 can continue to recover helium. During the recovery process, the concentration detector will always detect that the helium concentration of the discharged gas meets the standard, and then the valve is controlled to open so that the gas can flow out for storage.

The utility model provides a helium recovery system, which first filters out larger particulate impurities in the raw gas through a filter screen plate 3, and introduces the helium into a second space to prevent the particulate impurities from damaging subsequent structures and affecting the recovery efficiency of the helium; the bristles 51 on the air hole plate 5 can adsorb the fluff and dust in the helium, effectively remove the impurities in the recovered helium, and improve the purity of the helium; the activated carbon box 6 can effectively remove the impurities and poisonous gases in the recovered helium again; the activated carbon box 6 is inserted and arranged to facilitate the replacement of the activated carbon; the treated gas enters the purification device to realize the recovery of the helium; the compressor 7 pressurizes the helium to minimize the consumption rate of the helium; the entire system has a simple structure and can both remove impurities and recover helium.

The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims (7)

1. A helium recovery system, characterized in that it comprises: a box; A partition is provided inside the box body, and the partition divides the inside of the box body into a first space and a second space. A filter screen is provided inside the first space, and the filter screen divides the first space into a first area and a second area. An air inlet pipe is provided on the side wall of the box body corresponding to the first area, and an air port is provided at a position of the partition corresponding to the second area, and the air port connects the second area with the second space. An air hole plate, an activated carbon box, a purification device and a compressor are provided in the second space. Bristles are provided on the side of the air hole plate facing the air port. The activated carbon box is located on the air outlet side of the air hole plate. An air collecting hopper is provided on the air outlet side of the activated carbon box, and the air collecting hopper is connected to the purification device, and the purification device is connected to the compressor. The compressor is provided with an air outlet pipe, and the air outlet pipe passes through the box body. 2. The helium recovery system according to claim 1 is characterized in that the purification device comprises a purification tank and a mixing tank, one end of the purification tank is connected to the gas collecting hopper, the other end of the purification tank is connected to the mixing tank, and the mixing tank is connected to the compressor. 3. The helium recovery system according to claim 2, characterized in that a purification membrane is provided in the purification tank. 4. The helium recovery system according to claim 2, characterized in that an exhaust valve is provided on the purification tank, the exhaust valve is provided with an exhaust pipe, and the exhaust pipe passes through the box. 5. The helium recovery system according to any one of claims 1 to 4, characterized in that one end of the air hole plate is inserted into the partition plate, and the other end of the air hole plate is installed on the side wall of the box body. 6. The helium recovery system according to claim 5, characterized in that a socket for inserting the air hole plate is provided on the side wall of the box body, and a cover plate is provided at the socket. 7. The helium recovery system according to any one of claims 1 to 4, characterized in that a window for inserting the activated carbon box is provided on the side wall of the box body, and the activated carbon box is inserted into the box body through the window.