A gas pump convenient to maintain

Abstract

The utility model relates to a gas pump technical field discloses a gas pump convenient to maintain, including pump body, pipeline, set up on pipeline's sealing assembly and preprocessing assembly, sealing assembly includes valve body, the valve core that can slide in valve body and the spring of connecting both, realize the automatic sealing and opening of pipeline through the presence or absence of airflow, preprocessing assembly is by cyclone separator, first filter cylinder of built -in filter core and built -in activated carbon's second filter cylinder sequentially connected constitute, for the multistage purification of inhaled gas, the fan blade in pump body is designed as detachable structure through the clamp plate and bolt, and the pump body shell still is provided with observation window. The utility model discloses through automatic sealing structure, effectively solved the security risk of gas leakage, through preprocessing assembly purification gas source, protected the pump body internal part, prolonged the service life of equipment, simultaneously, the design of detachable fan blade and observation window, significantly improved the convenience of routine maintenance.

Description

Technical Field

[0001] This utility model relates to the field of gas pump technology, and in particular to a gas pump that is easy to maintain. Background Technology

[0002] As the core equipment in gas extraction systems in mines and other locations, the gas pump's main function is to pump out methane gas and reduce the methane concentration in the working environment. It is a key technical equipment for ensuring safe production.

[0003] Existing gas pumps typically operate by using a motor to drive internal fan blades at high speed, creating negative pressure to draw gas from the pipeline and expel it. This method of operation effectively achieves gas transport.

[0004] However, in practical applications, it has been found that when the gas pump stops operating for any reason, the power driving the fan blades disappears, creating an open connection between the pump body and the extraction pipeline. At this time, the gas remaining in the pipeline and the gas continuously seeping from the extraction source will leak back through the unobstructed pump body flow channel into the pump room or the external environment.

[0005] Uncontrolled gas leaks pose a significant safety hazard. To prevent this, operators often need to manually close the valves on the pipeline after each pump shutdown and then manually open them again before restarting. This not only increases the complexity of the operation but also increases the risk of valves not being closed in time due to human error, leading to safety accidents. This leak prevention method, which relies on manual intervention, makes the entire operation and maintenance process cumbersome and risky.

[0006] Therefore, this utility model proposes a gas pump that is easy to maintain in order to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the existing gas pump technology, which has the safety hazard of gas leakage due to the open connection between the pump body and the pipeline when it is not in operation, and the reliance on manual valve operation to prevent leakage, which is cumbersome and unreliable, this utility model aims to provide a gas pump with an improved structure that can effectively solve the above problems and is easy to maintain.

[0008] This utility model provides a gas pump that is easy to maintain, including a pump body and a pipe connected to the input end of the pump body. The gas pump also includes a sealing assembly disposed on the pipe.

[0009] The sealing assembly includes a valve body with a flow channel for gas passage inside. One end of the valve body has an external thread, which is threaded to the internal thread of a retaining ring. A retaining ring for locking is fitted at the connection between the two valve bodies. A valve core is slidably disposed in the flow channel, and a rubber ring is fixed on the valve core. A spring is connected between the valve core and the inner wall of the valve body.

[0010] Preferably, the gas pump further includes a pretreatment component, the outlet end of which is fixedly connected to the end of the pipeline located upstream of the sealing component.

[0011] Preferably, the pretreatment assembly includes a cyclone separator, a first filter cartridge, and a second filter cartridge that are fixedly connected in sequence along the gas flow direction.

[0012] Preferably, the cyclone separator has an air inlet at the top and a collection box detachably connected to the bottom; the pretreatment component also includes an induced draft fan, the outlet end of which is fixedly connected to the air inlet.

[0013] Preferably, a filter element is fixedly disposed inside the first filter cartridge, and an end cap is detachably connected to the end of the first filter cartridge.

[0014] Preferably, a filter plate is horizontally fixed inside the second filter cartridge, and activated carbon is placed inside the filter plate.

[0015] Preferably, a rotating shaft is rotatably mounted inside the pump body, a hub is fixedly connected to the rotating shaft, and a fan blade is detachably fixed to the hub by means of a clamp and bolts.

[0016] Preferably, the pump body casing has an observation window facing the fan blades. This utility model has the following beneficial effects: 1. This utility model, through a sealing component installed on the pipeline, utilizes the automatic control of the presence or absence of airflow to link the valve core and spring to block or open the flow channel, solves the problem in the prior art that gas leakage in the pipeline is easy when the gas pump stops working, which poses a serious safety hazard. It achieves the technical effect of automatic sealing, preventing gas leakage, and significantly improving the safety of equipment operation and work.

[0017] 2. This utility model, by setting up a multi-stage pretreatment component consisting of a cyclone separator, a first filter cartridge, and a second filter cartridge, removes impurities, filters, and desulfurizes the gas entering the pump body. This solves the problem in the prior art where impurities, dust, and corrosive components carried by methane gas directly enter the pump body, leading to rapid wear and corrosion of internal parts and short equipment life. It achieves the technical effects of purifying the gas source, protecting internal core components, extending the overall service life of the equipment, and reducing long-term maintenance costs.

[0018] 3. This utility model, by using a structure in which the fan blades are detachably fixed to the hub with clamps and bolts, and in conjunction with an observation window on the pump body, solves the problems in the prior art where the repair and replacement process for key vulnerable parts such as fan blades is complicated, time-consuming, labor-intensive, and difficult to observe the internal condition after damage. It achieves the technical effects of simplifying the maintenance process, improving maintenance efficiency, facilitating daily inspections, and reducing equipment downtime. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a gas pump that is easy to maintain according to the present invention; Figure 2 A schematic diagram of the fan blade structure of a gas pump that is easy to maintain, as proposed in this utility model; Figure 3 A schematic diagram of the sealing assembly structure of a gas pump that is easy to maintain, as proposed in this utility model; Figure 4 This is a schematic diagram of the pretreatment component structure of a gas pump that is easy to maintain, as proposed in this utility model.

[0020] Legend: 1. Pump body; 2. Sealing assembly; 21. Valve body; 22. Retaining ring; 23. Internal thread; 24. External thread; 25. Flow channel; 26. Valve core; 27. Rubber ring; 28. Spring; 3. Pretreatment assembly; 31. Exhaust fan; 32. Air inlet; 33. Cyclone separator; 34. Collection box; 35. First filter cartridge; 36. End cap; 37. Filter element; 38. Second filter cartridge; 39. Filter plate; 310. Activated carbon; 4. Input end; 5. Pipeline; 6. Observation window; 7. Shaft; 8. Hub; 9. Clamping plate; 10. Fan blade; 11. Bolt. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Example:

[0022] Please refer to Figures 1 to 4 This utility model provides a gas pump that is easy to maintain. It aims to solve the problems of existing gas pumps having the risk of gas leakage when they stop operating due to the lack of a sealing structure, and relying on manual valve operation to prevent leakage, which is cumbersome and unreliable.

[0023] like Figure 1 As shown, the basic frame of this gas pump mainly consists of a pump body 1 for generating pumping power and a pipe 5 for guiding gas flow. The pipe 5 is fixedly connected to the input end 4 of the pump body 1. One of the core improvements in this embodiment is the integrated installation of a sealing component 2 on the pipe 5 to achieve automatic on / off switching of the gas path.

[0024] Please refer to the following carefully. Figure 3 The internal structure of the sealing assembly 2 will be described below. The main body of the sealing assembly 2 is a hollow valve body 21. To achieve a detachable and secure connection between the valve body 21 and the pipeline 5, an external thread 24 is machined into one end of the valve body 21. Correspondingly, an internal thread 23 is machined inside the retaining ring 22 to mate with it. By screwing the external thread 24 into the internal thread 23, the valve body 21 can be installed inside the retaining ring 22, thus enabling the installation of two sets of valve bodies 21.

[0025] Inside the valve body 21, a flow channel 25 is integrally formed, running through its axis. This flow channel 25 is the only path for gas passage. A valve core 26 is slidably accommodated within the cavity of the flow channel 25. To achieve excellent airtightness when the valve core 26 blocks the flow channel 25, a flexible rubber ring 27 is embedded and fixed on the outer periphery of the valve core 26. A compression spring 28 is installed between the valve core 26 and the inner wall of the valve body 21. One end of the spring 28 abuts against the inner wall of the valve body 21, and the other end is connected to the valve core 26, constantly applying a thrust to the valve core 26 that pushes it upstream of the pipe 5 (i.e., in the blocking direction).

[0026] To further address the issue of internal component wear and corrosion caused by impurities before the gas enters the pump body 1, the gas pump is equipped with a pretreatment component 3. This pretreatment component 3 is a functional module, with its outlet end fixedly connected to the pipeline 5 and installed upstream of the sealing component 2, thereby ensuring that all gas entering the pump body 1 is purified.

[0027] Please refer to the following carefully. Figure 4 The pretreatment component 3 has a multi-stage series layout. Along the gas flow path, a cyclone separator 33 as a primary coarse filter, a first filter cartridge 35 as a secondary fine filter, and a second filter cartridge 38 as a tertiary adsorption are sequentially and fixedly connected. This series structure ensures that the gas is purified step by step and comprehensively. As the power source of the entire purification system, the induced draft fan 31 is located at the front end, and its outlet end is fixedly connected to the air inlet 32 ​​at the top of the cyclone separator 33.

[0028] In the first-stage purification unit, a collection box 34 is detachably connected to the bottom of the cyclone separator 33 via threads or snap-fit, facilitating the periodic cleaning of large particulate impurities separated. After cyclone separation, the gas enters the second-stage purification unit, namely the first filter cartridge 35. A filter element 37 is fixedly installed inside the first filter cartridge 35 to intercept finer suspended particles. To facilitate the inspection and replacement of the filter element 37, an end cap 36 is detachably connected to the end of the first filter cartridge 35. Finally, the gas enters the third-stage purification unit, namely the second filter cartridge 38. Inside the second filter cartridge 38, a filter plate 39 is horizontally fixed. The internal space of the filter plate 39 is used to place activated carbon 310 to adsorb harmful chemical components in the gas.

[0029] Based on the above embodiments, the present invention may further include the following preferred technical solutions: As a preferred embodiment, to facilitate the inspection and replacement of the core working components inside the pump body 1 and to achieve rapid condition monitoring, please refer to... Figure 1 and Figure 2 A rotating shaft 7 is rotatably installed in the inner cavity of the pump body 1, and a hub 8 is fixedly connected to the rotating shaft 7. The fan blade 10 is detachably fixed to the hub 8 by a combination of clamp 9 and bolt 11. This structure simplifies the replacement process of the fan blade 10. In conjunction with this, an observation window 6 facing the fan blade 10 is also provided on the housing of the pump body 1, so that maintenance personnel can intuitively check the operating status of the fan blade 10 without disassembling the pump body 1.

[0030] As another preferred implementation, to improve the maintenance convenience of preprocessing component 3, please refer to... Figure 4 Many of its internal components are designed to be detachable. For example, the collection box 34 at the bottom of the cyclone separator 33 can be easily removed to empty the collected impurities. The end cap 36 at the end of the first filter cartridge 35 is also designed to be detachable to facilitate the periodic replacement of the internal filter element 37. The filter plate 39 in the second filter cartridge 38 is used to hold activated carbon 310. These detailed designs together ensure the long-term efficient operation and low-cost maintenance of the entire purification system.

[0031] The working principle of this easy-to-maintain gas pump is as follows: When the equipment is started, the induced draft fan 31 in the pretreatment component 3 starts working first, driving the external gas into the cyclone separator 33 through the air inlet 32. The gas rotates at high speed in the separator to form a vortex. Due to centrifugal force, the denser impurity particles are thrown against the wall and settle into the collection box 34 at the bottom, completing the first-stage physical impurity removal. The gas that has been preliminarily purified then enters the first filter cartridge 35. When it flows through the filter element 37, the finer dust particles are effectively intercepted, completing the second-stage fine filtration. Subsequently, the gas passes through the second filter cartridge 38. In the activated carbon 310 layer carried by the filter plate 39, the corrosive components such as sulfides contained in the gas are adsorbed and removed, completing the third-stage deep purification.

[0032] The clean gas, after undergoing three stages of pretreatment, flows through pipe 5 to sealing assembly 2. Simultaneously, pump body 1 begins operation, with its internal shaft 7 driving hub 8 and the fan blades 10 fixed thereon to rotate synchronously at high speed, generating a strong suction force. This suction force creates a negative pressure airflow within the flow channel 25 of valve body 21. This airflow pressure acts on valve core 26, pushing it to overcome the preset elastic force of spring 28 and slide backward, causing the rubber ring 27 on valve core 26 to disengage from its sealing position, thereby fully opening the flow channel 25. Gas can then smoothly and unobstructedly enter the pump body 1. Throughout the operation, maintenance personnel can monitor the operation of fan blades 10 in real time through the observation window 6 on the pump body 1 housing. When pump body 1 stops working, the suction force disappears, and the airflow pressure within flow channel 25 disappears accordingly. The spring 28, having lost its resistance, immediately rebounds, pushing valve core 26 back to its original position until the rubber ring 27 tightly seals the entrance to flow channel 25, automatically and reliably cutting off the passage between pump body 1 and pipe 5, effectively preventing reverse leakage of gas.

[0033] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A gas pump that is easy to maintain, comprising a pump body (1) and a pipe (5) communicating with the input end (4) of the pump body (1), characterized in that, The gas pump also includes a sealing assembly (2) disposed on the pipeline (5). The sealing assembly (2) includes a valve body (21). A flow channel (25) for gas to pass through is formed inside the valve body (21). An external thread (24) is formed at one end of the valve body (21). The external thread (24) is threadedly connected to the internal thread (23) of the fixing ring (22). A fixing ring (22) for locking is sleeved at the connection of the two sets of valve bodies (21). A valve core (26) is slidably disposed in the flow channel (25). A rubber ring (27) is fixed on the valve core (26). A spring (28) is connected between the valve core (26) and the inner wall of the valve body (21).

2. The easy-to-maintain gas pump according to claim 1, characterized in that, The gas pump also includes a pretreatment component (3), the outlet end of which is fixedly connected to the end of the pipe (5) located upstream of the sealing component (2).

3. The easy-to-maintain gas pump according to claim 2, characterized in that, The pretreatment component (3) includes a cyclone separator (33), a first filter cartridge (35), and a second filter cartridge (38) that are fixedly connected in sequence along the gas flow direction.

4. The easy-to-maintain gas pump according to claim 3, characterized in that, The cyclone separator (33) is provided with an air inlet (32) at the top and a collection box (34) is detachably connected to the bottom. The pretreatment component (3) also includes an induced draft fan (31), the outlet end of which is fixedly connected to the air inlet (32).

5. The easy-to-maintain gas pump according to claim 3, characterized in that, A filter element (37) is fixedly installed inside the first filter cartridge (35), and an end cap (36) is detachably connected to the end of the first filter cartridge (35).

6. The easy-to-maintain gas pump according to claim 3, characterized in that, A filter plate (39) is horizontally fixed inside the second filter cartridge (38), and activated carbon (310) is placed inside the filter plate (39).

7. The easy-to-maintain gas pump according to claim 1, characterized in that, The pump body (1) is rotatably provided with a rotating shaft (7), and a hub (8) is fixedly connected to the rotating shaft (7). A fan blade (10) is detachably fixed to the hub (8) by means of a clamp (9) and bolts (11).

8. The easy-to-maintain gas pump according to claim 7, characterized in that, The pump body (1) has an observation window (6) facing the fan blade (10) on its casing.

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