Novel gas backflow device

By introducing a V-shaped pipe and a refrigeration box into the biogas recirculation device for dual condensation, combined with a pull-out plate and bolt structure, the problem of moisture removal in biogas is solved, improving biogas quality and reducing transportation costs.

CN223468364UActive Publication Date: 2025-10-24GUANGZHOU NONGKE ENVIRONMENTAL TECH CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202422978026.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-10-24
Estimated Expiration
2034-12-04

AI Technical Summary

Technical Problem

Existing biogas filtration devices cannot effectively remove moisture, resulting in decreased biogas quality, increased transportation costs, and excessively large equipment size.

Method used

A novel gas reflux device is designed, which uses a V-shaped tube and a refrigeration box for double condensation. Combined with a pull-out plate and bolt structure, it facilitates filter replacement and integrates a drain pipe and collection bottle to collect condensate.

Benefits of technology

It improves biogas quality, reduces transportation costs, simplifies the filter replacement process, and enhances the compactness of the equipment.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223468364U_ABST
    Figure CN223468364U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel gas backflow device which comprises a box body, the right side of the box body is communicated with a gas inlet pipe, the right side of the box body is provided with a filter box, the left side space of the filter box is communicated with the right side space of the box body through a short pipe, and the right side space of the filter box is communicated with a gas outlet pipe. The upper end of the air inlet pipe is communicated with a backflow pipe, the backflow pipe and the air outlet pipe are jointly communicated with a V-shaped pipe, the lower end of the V-shaped pipe is communicated with a downpipe, the lower end of the downpipe is communicated with a screw cap, and a collecting bottle is arranged at the upper end of the box body. According to the device, due to the arrangement of the V-shaped pipe, gas can be condensed twice when the gas flows back, so that moisture in biogas can be better removed, the quality of the biogas is improved, the production cost of biogas conveying equipment is reduced, condensed water can be collected, and meanwhile, due to the arrangement of a drawing plate and a bolt, the device is convenient to use. And the filter screen can be better replaced.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The utility model relates to gas backflow technical field especially relates to a novel gas backflow device. BACKGROUND

[0002] Biogas is a kind of mixed gas generated under anaerobic condition by the fermentation of organic matter by microorganism, in order to utilize energy more environmentally, organic matter is usually introduced into other equipment through inlet pipe after fermentation, and

[0003] In the biogas conveying process, since it contains certain impurities inside, it needs to be filtered by using a filtering device, but the existing filtering device can only filter the impurities in the biogas, since the biogas contains certain moisture, the moisture will also affect the quality of the biogas, and the prior art needs to add a moisture removal device to remove the moisture in the biogas, which will increase the conveying cost of the biogas and make the overall volume of the biogas conveying equipment too large.

[0004] Therefore, a novel gas backflow device needs to be designed to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims at solving the shortcomings in the prior art and provides a novel gas backflow device, which can condense the gas twice when the gas backflows, so that the moisture in the biogas can be removed better, the quality of the biogas is improved, the production cost of the biogas conveying equipment is reduced, the condensed water can be collected, and the filter screen can be replaced better through the setting of the pull-out plate and the bolt.

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

[0007] A novel gas backflow device, comprising a box body, a gas inlet pipe is communicated with the right side of the box body, a filter box is installed on the right side of the box body, the left side space of the filter box and the right side space of the box body are communicated through a short pipe, a gas outlet pipe is communicated with the right side space of the filter box, a backflow pipe is communicated with the upper end of the gas inlet pipe, a V-shaped pipe is commonly communicated between the backflow pipe and the gas outlet pipe, a downpipe is communicated with the lower end of the V-shaped pipe, a screw cap is communicated with the lower end of the downpipe, and a collection bottle is arranged on the upper end of the box body.

[0008] Preferably, the downpipe is a telescopic pipe, the upper end of the box body is fixedly connected with a limiting ring, and the collection bottle is located in the limiting ring.

[0009] Preferably, three filter screens are arranged in the filter box, an opening is arranged on the front side of the filter box, and a pull-out plate is arranged in the opening.

[0010] Preferably, the front side of the three filter screens is provided with two threaded holes, and a plurality of bolts are threadedly connected to the pull plate and threadedly connected to the inner walls of the corresponding threaded holes.

[0011] Preferably, the upper end of the box is fixedly connected with two support blocks, and the upper ends of the two support blocks are fixedly connected with a refrigeration box.

[0012] Preferably, the lower end of the box is communicated with a gas injection pipe.

[0013] Preferably, the diameter of the limiting ring is the same as the outer diameter of the collection bottle.

[0014] Compared with the prior art, the device has the advantages that:

[0015] 1. By arranging the V-shaped pipe, the water in the biogas can be removed during the biogas reflux process, thereby ensuring the quality of the biogas after reflux, and the V-shaped pipe penetrates the refrigeration box, so that the biogas can be condensed twice, further improving the removal effect of water in the biogas.

[0016] 2. By arranging the downpipe, the screw cap and the collection bottle, the condensed water can be collected, and the collection bottle can be quickly replaced, and the limiting ring can quickly align the screw cap and the collection bottle opening.

[0017] 3. By arranging the pull plate and the plurality of bolts, the plurality of filter screens can be quickly taken out, and the dirtier filter screens can be replaced, thereby ensuring the filtering effect of the biogas. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structural diagram of a novel gas reflux device is provided for the utility model.

[0019] Figure 2 A Figure 1 structure diagram of the middle filter screen and the pull plate.

[0020] Figure 3 A Figure 1 structure diagram of the middle A is enlarged.

[0021] In the figure: 1 box, 2 gas inlet pipe, 3 reflux pipe, 4 support block, 5 refrigeration box, 6 V-shaped pipe, 7 gas outlet pipe, 8 filter box, 9 pull plate, 10 bolt, 11 filter screen, 12 limiting ring, 13 collection bottle, 14 screw cap, 15 downpipe. DETAILED DESCRIPTION

[0022] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, and not all embodiments.

[0023] Referring to Figures 1-3 A novel gas backflow device, including box 1, the right side of box 1 is communicated with inlet pipe 2, the lower end of box 1 is communicated with gas injection pipe, the gas injection pipe is equipped with solenoid valve, can be through gas injection pipe and inject marsh gas to gas equipment, the right side of box 1 is installed with filter box 8, the left side space of filter box 8 is communicated with the right side space of box 1 through short pipe, the right side space of filter box 8 is communicated with outlet pipe 7, the upper end of inlet pipe 2 is communicated with backflow pipe 3, backflow pipe 3 and outlet pipe 7 are jointly communicated with V-shaped pipe 6, the lower end of V-shaped pipe 6 is communicated with downspout 15, the lower end of downspout 15 is communicated with screw cap 14, the upper end of box 1 is equipped with collection bottle 13, downspout 15 is telescopic pipe, the upper end of box 1 is fixedly connected with limiting ring 12, collection bottle 13 is located in limiting ring 12.

[0024] Need to explain, the inner wall of screw cap 14 and the bottle mouth of collection bottle 13 are all equipped with thread layer, so that screw cap 14 and collection bottle 13 can be threadedly connected, when installing collection bottle 13, need to place collection bottle 13 on limiting ring 12 first, then make screw cap 14 move down, by rotating collection bottle 13 to make screw cap 14 and the bottle mouth of collection bottle 13 threadedly connected, the diameter of limiting ring 12 is same with the outer diameter of collection bottle 13.

[0025] Wherein, three filter screens 11 are arranged in the filter box 8, an opening is arranged on the front side of the filter box 8, a pull-out plate 9 is arranged in the opening, two threaded holes are arranged on the front side of each filter screen 11, a plurality of bolts 10 are threadedly connected to the pull-out plate 9, the plurality of bolts 10 are threadedly connected to the inner walls of the corresponding threaded holes, a sealing ring is arranged between the pull-out plate 9 and the filter box 8, the pull-out plate 9 and the filter box 8 can be connected by using a buckle of the prior art (not shown), when the filter screen 11 needs to be replaced, the buckle can be removed.

[0026] Wherein, two support blocks 4 are fixedly connected to the upper end of the box 1, a refrigeration box 5 is fixedly connected to the upper end of the two support blocks 4, and the V-shaped pipe 6 penetrates through the refrigeration box 5.

[0027] Need to explain, the refrigeration box 5 is provided with a refrigeration fin, and the heating end of the refrigeration fin extends to the outside.

[0028] The working principle of the novel gas backflow device is as follows: before the biogas backflows, the collecting bottle 13 is placed on the limiting ring 12, then the downpipe 15 is pulled down, the screw cap 14 is aligned with the bottle mouth of the collecting bottle 13, then the collecting bottle 13 is rotated, the bottle mouth of the collecting bottle 13 is sealed by the screw cap 14, since the pull plate 9 is fixed on the filter box 8 at this time, the biogas can be injected into the box body 1 through the air inlet pipe 2, then backflows into the air inlet pipe 2 through the filter box 8, the air outlet pipe 7, the V-shaped pipe 6 and the backflow pipe 3;

[0029] When the biogas passes through the V-shaped pipe 6, due to the effect of the refrigeration box 5, the two parts of the V-shaped pipe 6 are in low temperature state, so that the water vapor in the biogas is condensed, the condensed water slides down and then falls into the collecting bottle 13.

[0030] The above is only the preferred specific implementation mode of the novel gas backflow device, but the protection scope of the novel gas backflow device is not limited to this, any skilled person in the technical field according to the technical scheme and the novel gas backflow device concept of the novel gas backflow device within the technical range disclosed by the novel gas backflow device, carries out equivalent replacement or change, should be covered in the protection scope of the novel gas backflow device.

Claims

1. A novel gas recirculation device comprising a box (1), characterized in that: The right side of the box (1) is communicated with the air inlet pipe (2), the right side of the box (1) is installed with the filter box (8), the left side space of the filter box (8) is communicated with the right side space of the box (1) through the short pipe, the right side space of the filter box (8) is communicated with the air outlet pipe (7), the upper end of the air inlet pipe (2) is communicated with the backflow pipe (3), the backflow pipe (3) and the air outlet pipe (7) are jointly communicated with the V-shaped pipe (6), the lower end of the V-shaped pipe (6) is communicated with the downspout (15), the lower end of the downspout (15) is communicated with the screw cap (14), the upper end of the box (1) is provided with the collection bottle (13).

2. A novel gas refluxing device according to claim 1, characterized in that: The downspout (15) is a telescopic pipe, the upper end of the box (1) is fixedly connected with the limiting ring (12), and the collection bottle (13) is located in the limiting ring (12).

3. A novel gas return device according to claim 1, characterized in that: Three filter screens (11) are arranged in the filter box (8), the front side of the filter box (8) is provided with an opening, and the opening is provided with a pull-out plate (9).

4. A novel gas return device according to claim 3, characterized in that: The front side of each of the three filter screens (11) is provided with two threaded holes, a plurality of bolts (10) are threadedly connected to the pull-out plate (9), and the plurality of bolts (10) are threadedly connected with the inner walls of the corresponding threaded holes.

5. A novel gas return device according to claim 1, characterized in that: The upper end of the box (1) is fixedly connected with two supporting blocks (4), the upper ends of the two supporting blocks (4) are jointly fixedly connected with the refrigeration box (5), and the V-shaped pipe (6) penetrates through the refrigeration box (5).

6. A novel gas return device according to claim 1, characterized in that: The lower end of the box (1) is communicated with the gas injection pipe.

7. A novel gas return device according to claim 2, characterized in that: The diameter of the limiting ring (12) is the same as the outer diameter of the collection bottle (13).