A compressor for construction vent pipe recovery

By installing a sliding plate adjustment assembly and a quick-release filter screen inside the intake pipe, the problem of fixed intake flow rate of the water ring compressor in a low-pressure and unstable gas source environment is solved, realizing precise control and filtration of intake flow rate, and improving the operating stability and maintenance efficiency of the compressor.

CN224496680UActive Publication Date: 2026-07-14SHENYANG URBAN GAS DESIGN RES INST

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENYANG URBAN GAS DESIGN RES INST
Filing Date
2025-08-06
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing water ring compressors, when faced with low-pressure and unstable flow gas sources from construction venting gases, have a fixed intake flow rate, resulting in insufficient intake or gas resistance, low compression efficiency, and difficulty in adapting to gas source vacuum fluctuations.

Method used

A sliding plate adjustment assembly is installed inside the intake pipe. The opening area of ​​the intake channel is adjusted by a threaded rod and a slider structure. Combined with a quick-release filter structure, it can achieve precise control and filtration of the intake air volume and adapt to fluctuations in air source pressure.

Benefits of technology

It improves the operating stability and efficiency of the compressor, simplifies the maintenance process, extends the service life of the equipment and reduces maintenance costs, and is suitable for complex gas source environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224496680U_ABST
    Figure CN224496680U_ABST
Patent Text Reader

Abstract

The utility model relates to gas recovery equipment technical field discloses a kind of compressor for construction diffusion pipeline gas recovery, including bottom plate, the bottom plate upper surface is fixedly connected with support, the support upper surface is fixedly connected with shell, the shell upper surface is fixedly connected with two manifold, one of the manifold outer wall is fixedly connected with air inlet pipe, the air inlet pipe inside is provided with adjusting assembly;The adjusting assembly includes two sliding plates, the sliding plate is arranged in air inlet pipe inside, the air inlet pipe inner wall is fixedly connected with flow box and flow plate, the flow box inner wall is fixedly connected with slide rail one, two the sliding plate inner wall is slidably connected in slide rail one outer wall, the upper surface of two the sliding plate is fixedly connected with fixed link rod.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of gas recovery equipment technology, and in particular to a compressor for recovering gas from construction venting pipelines. Background Technology

[0002] With the widespread development of natural gas resources and the accelerated construction of infrastructure, the effective recovery of vented gases during construction, including urban gas supply, industrial gas supply, and pipeline construction, has become a crucial means of energy conservation and emission reduction. In this process, a small amount of residual gas often remains in the vented pipelines, possessing certain recovery value. However, due to its low pressure and unstable flow, ordinary compression equipment struggles to directly and effectively compress and recover it. Water ring compressors, with their compact structure, stable operation, and adaptability to gases containing moisture or small amounts of impurities, are widely used in such low-pressure gas compression and recovery scenarios. Water ring compressors utilize the impeller rotation to drive the working fluid (water) to form a rotating water ring. Through a series of enclosed spaces formed by the water ring within the compression chamber, the gas is drawn in, compressed, and discharged. This makes them suitable for complex working conditions in construction environments with high humidity and pressure fluctuations.

[0003] The widely used water ring compressor mainly consists of a compressor main unit, an inlet pipe, an outlet pipe, an impeller, a water ring chamber, and a liquid circulation system. During operation, the impeller and the working fluid (water) in the compression chamber work together to form multiple working chambers surrounded by the water ring and impeller blades. Gas is drawn into these working chambers during the intake phase. As the impeller rotates, it causes the water ring to change shape, gradually reducing the volume of the working chambers and compressing the gas. Finally, the compressed gas is discharged through the outlet pipe. This type of structure is effective when handling relatively stable gas sources, and the equipment structure is relatively simple and easy to maintain. However, its design is mostly for operating conditions with constant or small pressure fluctuations, lacking adaptability to low-pressure and unstable gas sources.

[0004] However, in actual construction vent gas recovery scenarios, the gas source often exhibits unstable characteristics such as low pressure, large flow fluctuations, or frequent vacuum fluctuations. Existing water ring compressors generally employ a fixed-diameter, single-pipe design for the intake, which cannot flexibly adjust the intake flow according to changes in the gas source pressure. This leads to insufficient intake or even cavitation when the intake negative pressure is low, while sudden increases in gas source pressure can easily create air resistance, resulting in a decrease in compression efficiency. This "fixed intake" structure is slow to respond to unstable gas sources, making it difficult to achieve efficient matching and regulation of the gas source, thus limiting its further promotion and application in the field of construction vent gas recovery. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a compressor for recovering gas from construction venting pipelines, aiming to improve the existing structure's fixed air intake flow, which makes it difficult to adapt to fluctuations in gas source vacuum, and is prone to problems such as cavitation, air resistance, or low compression efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a compressor for recovering pipeline gas during construction, comprising a base plate, a bracket fixedly connected to the upper surface of the base plate, a housing fixedly connected to the upper surface of the bracket, two manifolds fixedly connected to the upper surface of the housing, an air inlet pipe fixedly connected to the outer wall of one of the manifolds, and an adjustment component provided inside the air inlet pipe;

[0007] The adjustment assembly includes two sliding plates, which are disposed inside the air intake pipe. A flow box and a flow plate are fixedly connected to the inner wall of the air intake pipe. A first slide rail is fixedly connected to the inner wall of the flow box. The inner walls of the two sliding plates are slidably connected to the outer wall of the first slide rail. A fixing rod is fixedly connected to the upper surface of each of the two sliding plates. A slider is slidably connected to the outer wall of the fixing rod. A second slide rail is slidably connected to the lower surface of the slider. A groove is opened inside the slider. A threaded rod is rotatably connected to the outer wall of the slider.

[0008] Furthermore, two flanges are fixedly connected to the outer wall of the manifold, and a filter screen is fixedly connected to the inner wall of the flange. A fixing block is fixedly connected to the lower surface of one of the flanges, and a spring is fixedly connected to the inner wall of the fixing block. A quick-release block is fixedly connected to one end of the spring. The outer wall of the quick-release block is slidably connected to the inner wall of the fixing block. A fixing ball is slidably connected to the inner wall of the fixing block, and a quick-release rod is slidably connected to the inner wall of the quick-release block.

[0009] Furthermore, a base is fixedly connected to the upper surface of the base plate, a motor is fixedly connected to the upper surface of the base, and an air outlet pipe is fixedly connected to the upper surface of another manifold.

[0010] Furthermore, the output end of the housing is fixedly connected to a coupling body, and a coupling protective shell is provided on the outer wall of the coupling body.

[0011] Furthermore, one end of the coupling body is fixedly connected to the outer wall of the housing, and the coupling protective shell is fitted into the housing.

[0012] Furthermore, the lower surface of the sliding plate is slidably connected to the inner wall of the flow box, and a flow plate is fixedly connected to the upper surface of the flow box.

[0013] Furthermore, the outer wall of the threaded rod is threadedly connected to the inner wall of the air intake pipe, and the outer wall of the threaded rod is threadedly connected to the inner wall of the flow box.

[0014] Furthermore, the lower surface of the slide rail is fixedly connected to the inner wall of the flow box, and the outer wall of the fixed ball is slidably connected to the inner wall of the quick-release block.

[0015] This utility model has the following beneficial effects:

[0016] In this invention, a sliding plate adjustment component is installed inside the intake pipe to achieve precise control of the intake air volume. The rotating threaded rod drives the slider and sliding plate to slide along the slide rail, thereby adjusting the opening area of ​​the intake channel. This can adapt to the pressure fluctuation of the construction venting air source and effectively avoid the problems of cavitation, air resistance and low compression efficiency caused by the fixed intake air flow of traditional compressors, thereby improving the stability and efficiency of compressor operation.

[0017] In this invention, the filter screen is quickly disassembled and installed through structures such as flanges, fixing blocks, springs, quick-release blocks, and fixing balls, which simplifies the maintenance process and improves the efficiency and convenience of on-site maintenance. This structure is particularly suitable for construction venting environments with complex gas composition and frequent maintenance requirements, ensuring the continuous, stable, and efficient operation of the compressor, extending the service life of the equipment, and reducing maintenance costs. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a compressor for recovering pipeline gas during construction, as proposed in this utility model.

[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0020] Figure 3 This is a schematic diagram of the flow box section of a compressor for recovering gas from construction venting pipelines, as proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the fixing block part of a compressor for recovering gas from construction venting pipelines, as proposed in this utility model.

[0022] Figure 5 This is a schematic diagram of the quick-release block of a compressor for recovering gas from construction venting pipelines, as proposed in this utility model.

[0023] Legend:

[0024] 1. Base plate; 2. Bracket; 3. Housing; 4. Coupling protective shell; 5. Coupling body; 6. Motor; 7. Base; 8. Manifold; 9. Outlet pipe; 10. Flange; 11. Quick release rod; 12. Inlet pipe; 13. Threaded rod; 14. Flow plate; 15. Flow box; 16. Sliding plate; 17. Slider; 18. Slide groove; 19. Fixing rod; 20. Slide rail one; 21. Slide rail two; 22. Filter screen; 23. Fixing block; 24. Fixing ball; 25. Quick release block; 26. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 - Figure 5 The present invention provides an embodiment of a compressor for recovering pipeline gas during construction, comprising a base plate 1, which serves as the foundation support platform for the entire compressor unit, a fixed bracket 2, and other components to ensure the stability and load-bearing capacity of the overall structure of the equipment. The bracket 2 is fixedly connected to the upper surface of the base plate 1, and a housing 3 is fixedly connected to the upper surface of the bracket 2. Two manifolds 8 are fixedly connected to the upper surface of the housing 3. The manifolds 8 are located at the top of the housing 3 and serve as a gas inlet and outlet diversion device. One end is connected to the inlet pipe 12, and the other end is connected to the outlet pipe 9 to achieve reasonable gas flow. The outer wall of one of the manifolds 8 is fixedly connected to the inlet pipe 12, and an adjustment component is provided inside the inlet pipe 12.

[0027] The regulating assembly includes two sliding plates 16, which are installed inside the intake pipe 12. By sliding along the slide rail 20, the opening area of ​​the intake channel is adjusted to achieve precise control of the intake airflow and adapt to fluctuations in the air source pressure. The sliding plates 16 are located inside the intake pipe 12, and a flow box 15 and a flow plate 14 are fixedly connected to the inner wall of the intake pipe 12. The flow plate 14 is fixedly connected to the upper surface of the flow box 15, and together with the sliding plates 16, they form an effective flow regulating channel for the intake channel, ensuring stable and controllable gas flow. The inner wall of the flow box 15 is fixedly connected to the slide rail 20, and the inner walls of the two sliding plates 16 are slidably connected to the slide rail 20. On the outer wall of rail 1 20, two sliding plates 16 are fixedly connected to the upper surfaces of each of the two sliding plates 16. The fixed rods 19 connect the sliding plates 16 and the sliders 17. Guided by the slide grooves 18, the sliding plates 16 can move laterally and adjust the flow rate. The sliders 17 are slidably connected to the outer wall of the fixed rods 19. The lower surface of the sliders 17 is slidably connected to the second slide rail 21. The sliders 17 have slide grooves 18 inside. The outer wall of the sliders 17 is rotatably connected to a threaded rod 13. The rotation of the threaded rod 13 drives the sliders 17 to slide along the second slide rail 21. It is fixed to the inner wall of the air intake pipe 12 and the flow box 15 by a threaded connection, which drives the sliding plates 16 to adjust the opening area of ​​the air intake channel.

[0028] Reference Figure 1 - Figure 5Two flanges 10 are fixedly connected to the outer wall of manifold 8. A filter screen 22 is fixedly connected to the inner wall of flange 10. The filter screen 22 is fixed to the inner wall of flange 10 and is used to efficiently filter impurity particles in the intake air, preventing solid impurities from entering the compressor and avoiding equipment wear and blockage. A fixing block 23 is fixedly connected to the lower surface of one flange 10. A spring 26 is fixedly connected to the inner wall of fixing block 23. A quick-release block 25 is fixedly connected to one end of spring 26. The outer wall of quick-release block 25 is slidably connected to the inner wall of fixing block 23. A fixing ball 24 is slidably connected to the inner wall of fixing block 23 and the inner wall of quick-release block 25. The filter screen 22 is quickly locked and released by operating quick-release rod 11. Quick-release rod 11 is slidably connected to the inner wall of quick-release block 25. A base 7 is fixedly connected to the upper surface of base plate 1. A motor 6 is fixedly connected to the upper surface of base 7. The motor 6 serves as a power source, mounted on base 7, and drives the compressor to compress gas through coupling body 5. The other manifold 8... An outlet pipe 9 is fixedly connected to the surface of the housing 3. A coupling body 5 is fixedly connected to the output end of the housing 3. A coupling protective shell 4 is provided on the outer wall of the coupling body 5. One end of the coupling body 5 is fixedly connected to the outer wall of the housing 3. The coupling protective shell 4 fits snugly against the housing 3. The lower surface of the sliding plate 16 is slidably connected to the inner wall of the flow box 15. The flow box 15 provides guidance and support for the sliding of the sliding plate 16 and the slider 17, ensuring the smooth movement of the adjustment component. A flow plate 14 is fixedly connected to the upper surface of the flow box 15. The threaded rod 13 is threaded to the inner wall of the air intake pipe 12. The air intake pipe 12 is responsible for introducing the gas to be released during construction. An adjustment component is installed inside to control the air intake flow. The threaded rod 13 is threaded to the inner wall of the flow box 15. The lower surface of the slide rail 21 is fixedly connected to the inner wall of the flow box 15. The outer wall of the fixed ball 24 is slidably connected to the inner wall of the quick release block 25. The quick release block 25, together with the spring 26 and the fixed ball 24, forms a locking mechanism that can slide to achieve quick disassembly and installation of the filter screen 22.

[0029] Working principle: When a compressor for recovering vented pipeline gas during construction is required, the intake flow rate is controlled by an adjustment component inside the intake pipe 12 to adapt to pressure fluctuations in the vented gas source. The adjustment component includes two sliding plates 16 inside the intake pipe 12. The lower surface of the sliding plates 16 is slidably connected to the inner wall of the flow box 15 and slidably connected to a slide rail 20 on the inner wall of the flow box 15. A fixing rod 19 is fixedly connected to the upper surface of each sliding plate 16. The fixing rod 19 is movably disposed in a slide groove 18 opened inside the slider 17. The lower surface of the slider 17 slides... The slider 17 is rotatably connected to the slide rail 21 inside the flow box 15, and the outer wall of the slider 17 is rotatably connected to the threaded rod 13. When the threaded rod 13 is rotated, the slider 17 is driven to slide horizontally on the slide rail 21, thereby pushing the fixed rod 19 in the internal slide groove 18 to move laterally, and then driving the sliding plate 16 to slide along the slide rail 20, thereby adjusting the opening area of ​​the sliding plate 16 to the air intake channel, and realizing precise control of the gas flow. This structure solves the problem that the air intake flow of the traditional compressor is not adjustable and cannot adapt to the vacuum fluctuation of the gas source, avoiding working conditions such as evacuation, air resistance or low compression efficiency.

[0030] In addition, to prevent impurities entrained in the vent gas from entering the compressor and causing wear, blockage, or system malfunction, the device is equipped with a quick-release filter screen 22 inside the manifold 8. This component includes a filter screen 22 installed on the inner wall of a flange 10, which is fixedly connected to the manifold 8. The filter screen 22 can efficiently intercept solid particles in the intake air. A fixing block 23 is connected below the flange 10, and a spring 26 and a quick-release block 25 are fixedly connected inside the fixing block 23. One end of the spring 26 is fixedly connected to the quick-release block 25. The outer wall of the quick-release block 25 is slidably connected to the inner wall of the fixing block 23, and a quick-release rod 11 is also slidably connected inside. A fixing ball 24 is slidably connected inside the fixing block 23. Under the action of the quick-release rod 11, it can be quickly locked or released. When it is necessary to remove the filter screen 22 for cleaning or replacement, simply press it. The quick-release lever 11 presses against the quick-release block 25 and the spring 26 below it. The fixing ball 24 is then pressed into the groove between the fixing block 23 and the quick-release block 25 by the protrusion at the bottom of the quick-release lever 11, thus releasing the constraint of the fixing ball 24 on the quick-release block 25 and achieving rapid release. For fixing, insert the quick-release lever 11, pressing against the quick-release block 25 and the spring 26, causing the upper surface of the quick-release block 25 to press against the fixing ball 24, allowing the fixing ball 24 to enter the groove in the middle of the quick-release lever 11, thus fixing it. This structure facilitates on-site maintenance. Compared to traditional bolt-fixed structures, this quick-release structure effectively improves equipment maintenance efficiency and on-site adaptability, and is particularly suitable for construction venting scenarios with complex gas source composition and frequent connection changes, ensuring continuous, stable, and efficient operation of the compressor.

[0031] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A compressor for recovering pipeline gas during construction, comprising a base plate (1), characterized in that: A bracket (2) is fixedly connected to the upper surface of the base plate (1), a housing (3) is fixedly connected to the upper surface of the bracket (2), and two manifolds (8) are fixedly connected to the upper surface of the housing (3). An air intake pipe (12) is fixedly connected to the outer wall of one of the manifolds (8), and an adjustment component is provided inside the air intake pipe (12). The adjustment assembly includes two sliding plates (16), which are disposed inside the air intake pipe (12). The inner wall of the air intake pipe (12) is fixedly connected to a flow box (15) and a flow plate (14). The inner wall of the flow box (15) is fixedly connected to a slide rail (20). The inner walls of the two sliding plates (16) are slidably connected to the outer wall of the slide rail (20). The upper surfaces of the two sliding plates (16) are fixedly connected to a fixing rod (19). The outer wall of the fixing rod (19) is slidably connected to a slider (17). The lower surface of the slider (17) is slidably connected to a slide rail (21). The slider (17) has a groove (18) inside. The outer wall of the slider (17) is rotatably connected to a threaded rod (13).

2. A compressor for recovering vented pipeline gas during construction, as described in claim 1, characterized in that: Two flanges (10) are fixedly connected to the outer wall of the manifold (8). A filter screen (22) is fixedly connected to the inner wall of the flange (10). A fixing block (23) is fixedly connected to the lower surface of one of the flanges (10). A spring (26) is fixedly connected to the inner wall of the fixing block (23). A quick-release block (25) is fixedly connected to one end of the spring (26). The outer wall of the quick-release block (25) is slidably connected to the inner wall of the fixing block (23). A fixing ball (24) is slidably connected to the inner wall of the fixing block (23). A quick-release rod (11) is slidably connected to the inner wall of the quick-release block (25).

3. A compressor for recovering vented pipeline gas during construction, as described in claim 1, characterized in that: A base (7) is fixedly connected to the upper surface of the base plate (1), a motor (6) is fixedly connected to the upper surface of the base (7), and an air outlet pipe (9) is fixedly connected to the upper surface of another manifold (8).

4. A compressor for recovering vented pipeline gas during construction, as described in claim 3, characterized in that: The output end of the housing (3) is fixedly connected to the coupling body (5), and the outer wall of the coupling body (5) is provided with a coupling protective shell (4).

5. A compressor for recovering vented pipeline gas during construction, as described in claim 4, characterized in that: One end of the coupling body (5) is fixedly connected to the outer wall of the housing (3), and the coupling protective shell (4) is in contact with the housing (3).

6. A compressor for recovering vented pipeline gas during construction, as described in claim 2, characterized in that: The lower surface of the sliding plate (16) is slidably connected to the inner wall of the flow box (15), and the upper surface of the flow box (15) is fixedly connected to the flow plate (14).

7. A compressor for recovering vented pipeline gas during construction, as described in claim 2, characterized in that: The outer wall of the threaded rod (13) is threaded to the inner wall of the air inlet pipe (12), and the outer wall of the threaded rod (13) is threaded to the inner wall of the flow box (15).

8. A compressor for recovering vented pipeline gas during construction, as described in claim 2, characterized in that: The lower surface of the slide rail (21) is fixedly connected to the inner wall of the flow box (15), and the outer wall of the fixed ball (24) is slidably connected to the inner wall of the quick-release block (25).