CN221423436U - Portable gas delivery vacuum pump - Google Patents
Portable gas delivery vacuum pump Download PDFInfo
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- CN221423436U CN221423436U CN202323404327.9U CN202323404327U CN221423436U CN 221423436 U CN221423436 U CN 221423436U CN 202323404327 U CN202323404327 U CN 202323404327U CN 221423436 U CN221423436 U CN 221423436U
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- vacuum pump
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- pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 17
- 239000003595 mist Substances 0.000 claims abstract description 15
- 230000003584 silencer Effects 0.000 claims abstract description 6
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 49
- 239000003245 coal Substances 0.000 description 14
- 238000000605 extraction Methods 0.000 description 6
- 238000004880 explosion Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000002912 waste gas Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 239000005431 greenhouse gas Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
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Abstract
The utility model relates to a movable gas conveying vacuum pump which comprises a Roots vacuum pump, a speed reducer, an explosion-proof motor and a gas outage instrument which are arranged on a track trailer; the Roots vacuum pump is connected with a speed reducer through a first coupler, and the speed reducer is connected with an explosion-proof motor through a second coupler; the Roots vacuum pump comprises a pump body, wherein an air suction port is arranged at the upper end of the pump body and is connected with an air suction pipeline, and a fine water mist generator, a pore plate flowmeter, a high-concentration gas sensor and an environment low-concentration gas sensor are sequentially arranged on the air suction pipeline; the lower extreme of the pump body is equipped with the gas vent, exhaust duct is connected to the gas vent, exhaust duct's one end is connected the gas vent of the pump body, and the air inlet of silencer is connected to the other end. The utility model can be used independently, can be used flexibly in any position of a mine, is not limited by working environment, has smaller temperature rise and greatly improves the reliability of the vacuum pump.
Description
Technical Field
The utility model relates to the technical field of vacuum equipment, in particular to a movable gas conveying vacuum pump.
Background
The coal seam gas pressure of the coal mine in China is high, the gas content is high, the coal quality is soft, the air permeability is low, and the coal is not easy to extract before the coal is mined; the gas release speed is high in the exploitation process, the phenomena of coal and gas outburst are easy to occur, gas explosion is induced, and the life safety of underground coal mine workers is seriously influenced. The purpose of extracting the gas is mainly to improve the safety of underground mining of the coal mine and improve the production efficiency of the coal, and in addition, the gas can be used for developing clean energy and reducing the emission of greenhouse gases after being extracted and stored. At present, a water ring type vacuum delivery pump is mainly adopted as a gas delivery pump. The water ring type vacuum delivery pump adopts water as working fluid, so that a large amount of water resources are wasted, and the energy consumption of the equipment is high and the efficiency is low; in the northern area where the coal mine is severely deficient in water, if the vacuum pump adopts a large amount of water, the operation cost is increased greatly, the discharged wastewater treatment cost is high, and the water ring type vacuum conveying pump can not well meet the requirements of economic development of the coal mine under the new situation of advocating energy conservation and emission reduction.
The Roots vacuum pump is a positive displacement vacuum pump in which two vane-shaped rotors which synchronously rotate in opposite directions are arranged in the pump, and fine gaps are arranged between the rotors and the inner wall of the pump shell and are not contacted with each other. Therefore, the movable gas conveying vacuum pump is provided, and energy sources are saved.
Disclosure of Invention
The utility model aims to overcome the defects, and provides the movable gas conveying vacuum pump which is assembled on a track trailer capable of moving on a standard rail, so that the equipment can flexibly and emergently work on a coal mine.
The purpose of the utility model is realized in the following way:
A movable gas-conveying vacuum pump comprises a Roots vacuum pump, a speed reducer, an explosion-proof motor and a gas power-off instrument which are arranged on a track trailer; the Roots vacuum pump is connected with a speed reducer through a first coupler, and the speed reducer is connected with an explosion-proof motor through a second coupler; the Roots vacuum pump comprises a pump body, wherein an air suction port is arranged at the upper end of the pump body and is connected with an air suction pipeline, and a fine water mist generator, a pore plate flowmeter, a high-concentration gas sensor and an environment low-concentration gas sensor are sequentially arranged on the air suction pipeline; the lower extreme of the pump body is equipped with the gas vent, exhaust duct is connected to the gas vent, exhaust duct's one end is connected the gas vent of the pump body, and the air inlet of silencer is connected to the other end.
Further, the front end of the pump body is provided with a front end cover, the rear end of the pump body is provided with a rear end cover, and a pair of parallel three-vane involute rotors which are horizontally installed and meshed with each other are arranged in the pump body: a driving rotor and a driven rotor.
Further, the driving rotor is arranged on the main shaft, the driven rotor is arranged on the rotor shaft, the main shaft and the rotor shaft are arranged in the pump body, and the driving rotor and the driven rotor are respectively arranged in a front end cover and a rear end cover at two ends of the pump body through bearings.
Further, a bearing is arranged between the front end cover and the main shaft, and a bearing is also arranged between the rear end cover and the main shaft.
Further, a gear is arranged in the rear cover, and the gear is sleeved at the tail end of the main shaft; the driving rotor and the driven rotor make the rotors synchronously rotate at constant speed in the pump body through a pair of synchronous gears in the oil tank.
Further, the front end cover is fixedly connected to the front end of the pump body through an inner hexagon screw, and the rear end cover is fixedly connected to the rear end of the pump body through an inner hexagon screw.
Further, be equipped with the protecgulum on the front end housing, the protecgulum is with hexagon socket head cap screw fixed connection in the front side of front end housing, be equipped with the back lid on the rear end housing, the back lid is with hexagon socket head cap screw fixed connection in the rear side of rear end housing.
Further, the shaft outlet end of the main shaft extends out of the front cover and is connected with a first coupler, and the first coupler is connected with a speed reducer.
Compared with the prior art, the utility model has the beneficial effects that:
The utility model provides a movable gas conveying vacuum pump, which is characterized in that a Roots vacuum pump, a speed reducer, an explosion-proof motor and a gas outage instrument are arranged on a track trailer in a container mode, an additional cooling device is not needed, a small amount of common water is utilized to prevent combustion and explosion of gas to be pumped, and the vacuum pump is cooled, so that no waste gas and waste liquid are discharged, energy consumption is low, and the environment is protected.
The utility model has the advantages of safety, reliability, simple structure, low use cost, single use, flexible use in any position of the mine, wider use range of the vacuum pump, unrestricted working environment, smaller temperature rise, greatly improved reliability of the vacuum pump and longer service life of the vacuum pump.
The utility model improves the reliability of the pump, is suitable for any vacuum condition, has simpler structure, better safety, better air extraction efficiency, no waste gas or waste liquid discharge and more flexible movement, and is an energy-saving and environment-friendly vacuum pump.
The water mist generator is arranged at the air inlet of the vacuum pump, and water mist is continuously introduced when the Roots vacuum pump sucks air, so that overheating of the Roots vacuum pump due to compressed gas can be reduced, combustion and explosion of gas are prevented by the water mist, the rotor of the Roots vacuum pump can be sealed by the water mist, and the air suction efficiency of the Roots vacuum pump is improved; the vacuum pump air inlet pipeline is also provided with a pipeline high-concentration gas sensor and a pipeline low-concentration gas sensor, so that the gas concentration inside and outside the mine can be monitored, and the mine safety is improved.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic front view in cross section of the Roots vacuum pump of the present utility model.
Fig. 3 is a schematic side cross-sectional view of the Roots vacuum pump of the present utility model.
Wherein:
Roots vacuum pump 1, pump body 1.1, air suction port 1.2, air discharge port 1.3, front end cover 1.4, front cover 1.5, rear end cover 1.6, rear cover 1.7, bearing 1.8, gear 1.9, driving rotor 1.10, driven rotor 1.11, first coupling 2, speed reducer 3, second coupling 4, explosion-proof motor 5, muffler 6, exhaust pipe 7, air suction pipe 8, fine water mist generator 9, orifice flowmeter 10, high concentration gas sensor 11, air suction gate valve 12, environmental low concentration gas sensor 13, gas power-off instrument 14, track trailer 15.
Description of the embodiments
In order to better understand the technical solution of the present utility model, the following detailed description will be made with reference to the accompanying drawings. It should be understood that the following embodiments are not intended to limit the embodiments of the present utility model, but are merely examples of embodiments that may be employed by the present utility model. It should be noted that, the description herein of the positional relationship of the components, such as the component a being located above the component B, is based on the description of the relative positions of the components in the drawings, and is not intended to limit the actual positional relationship of the components.
Example 1
Referring to fig. 1-3, fig. 1 depicts a schematic structural view of the present utility model. As shown in the figure, the mobile gas-conveying vacuum pump comprises a Roots vacuum pump 1, a speed reducer 3, an explosion-proof motor 5 and a gas power-off instrument 14 which are arranged on a track trailer 15; the Roots vacuum pump 1 is connected with a speed reducer 3 through a first coupling 2, and the speed reducer 3 is connected with an explosion-proof motor 5 through a second coupling 4.
The Roots vacuum pump 1 comprises a pump body 1.1, a front end cover 1.4 is arranged at the front end of the pump body 1.1, a rear end cover 1.6 is arranged at the rear end of the pump body, and a pair of parallel three-vane involute rotors which are horizontally arranged and meshed with each other are arranged in the pump body 1.1: the driving rotor 1.10 and the driven rotor 1.11 are arranged on a main shaft, the driven rotor 1.11 is arranged on a rotor shaft, the main shaft and the rotor shaft are arranged in the pump body, and the driving rotor 1.10 and the driven rotor 1.11 are respectively arranged in a front end cover 1.4 and a rear end cover 1.6 at two ends of the pump body through bearings 1.8; a bearing 1.8 is arranged between the front end cover 1.4 and the main shaft, and a bearing 1.8 is also arranged between the rear end cover 1.6 and the main shaft; a gear 1.9 is arranged in the rear cover 1.7, and the gear 1.9 is sleeved at the tail end of the main shaft; the driving rotor 1.10 and the driven rotor 1.11 make the rotors synchronously rotate at constant speed in the pump body through a pair of synchronous gears 1.9 in the oil tank.
The front end cover 1.4 is fixedly connected to the front end of the pump body 1.1 by using an inner hexagon screw, and the rear end cover 1.6 is fixedly connected to the rear end of the pump body 1.1 by using an inner hexagon screw; the front cover 1.4 is provided with a front cover 1.5, the front cover 1.5 is fixedly connected to the front side of the front cover 1.4 by using an inner hexagon screw, the rear cover 1.6 is provided with a rear cover 1.7, and the rear cover 1.7 is fixedly connected to the rear side of the rear cover 1.6 by using the inner hexagon screw.
The output shaft end of the main shaft extends out of the front cover 1.5 and is connected with the first coupler 2, and the first coupler 2 is connected with the speed reducer 3; and a mechanical seal is arranged at the shaft outlet end of the main shaft.
The upper end of the pump body 1.1 is provided with an air suction port 1.2, and the air suction port 1.2 is connected with an air suction pipeline 8; the lower extreme of pump body 1.1 is equipped with gas vent 1.3, gas vent 1.3 connects exhaust pipe 7, gas vent 1.3 of pump body 1.1 is connected to the one end of exhaust pipe 7, and the air inlet of silencer 6 is connected to the other end, and Roots vacuum pump exhaust gas will be discharged by the air exhaust body into the atmosphere through the gas vent of silencer after the circulation noise reduction treatment of silencer.
The air suction pipeline 8 is sequentially provided with a fine water mist generator 9, an orifice flowmeter 10, a high-concentration gas sensor 11 and an environmental low-concentration gas sensor 13, an air suction gate valve 12 is further arranged between the high-concentration gas sensor 11 and the environmental low-concentration gas sensor 13, and the air suction gate valve 12 is arranged on the air suction pipeline 8; a pressure transmitter is also arranged on the air suction pipeline 8; the fine water mist generator 9 can dilute the concentration of gas, reduce the temperature rise of the Roots vacuum pump and prevent the vacuum pump from compressing the gas at the exhaust end to cause combustion and explosion.
Working principle:
the utility model relates to a movable gas conveying vacuum pump, which comprises a Roots vacuum pump, an explosion-proof motor and a movable rail car, wherein two end covers are arranged on two end surfaces of a pump body of the Roots vacuum pump, and a pair of parallel and horizontally-installed driving rotors and driven rotors (three-blade rotors) which are meshed with each other are arranged in the pump body; each rotor is supported and fixed in end covers at two ends of the pump body by two bearings respectively, and the main rotor and the driven rotor are driven by a pair of synchronous gears in a gear oil tank at one side of the vacuum pump head to synchronously rotate at a constant speed in the pump body, and the high-speed rotation of the main rotor and the driven rotor sucks air from an air suction port and then discharges the air from an air discharge port, so that the air suction and vacuumizing purposes of the Roots vacuum pump are realized. All the equipment is assembled on a rail trailer which can move on standard rails, so that the equipment can flexibly and emergently work on a coal mine.
The suction pipeline is sequentially provided with a suction port gate valve, a pipeline high-concentration gas sensor, a pore plate flowmeter, a water mist generator, an environment low-concentration gas sensor, a pressure transmitter and other devices, the air inlet of the vacuum pump is provided with a water mist generator, and water mist is continuously introduced when the Roots vacuum pump sucks air, so that overheating of the Roots vacuum pump due to compressed gas can be reduced, combustion and explosion of the gas are prevented by the water mist, the rotor of the Roots vacuum pump can be sealed by the water mist, and the air extraction efficiency of the Roots vacuum pump is improved; the pipeline high-concentration gas sensor and the low-concentration gas sensor can monitor the gas concentration inside and outside the mine and improve the mine safety.
The utility model can be used for partial and temporary extraction of mines and extraction anti-burst, so as to make up for the deficiency of the capability of a mine ground extraction system, and small and medium coal mines can be used as main equipment for mine extraction.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (8)
1. A portable gas delivery vacuum pump, its characterized in that: the gas power-off device comprises a Roots vacuum pump (1), a speed reducer (3), an explosion-proof motor (5) and a gas power-off instrument (14) which are arranged on a track trailer (15); the Roots vacuum pump (1) is connected with a speed reducer (3) through a first coupler (2), and the speed reducer (3) is connected with an explosion-proof motor (5) through a second coupler (4); the Roots vacuum pump (1) comprises a pump body (1.1), wherein an air suction port (1.2) is formed in the upper end of the pump body (1.1), the air suction port (1.2) is connected with an air suction pipeline (8), and a fine water mist generator (9), an orifice plate flowmeter (10), a high-concentration gas sensor (11) and an environment low-concentration gas sensor (13) are sequentially arranged on the air suction pipeline (8); the lower extreme of the pump body (1.1) is equipped with gas vent (1.3), gas vent (1.3) connect exhaust duct (7), gas vent (1.3) of the pump body (1.1) are connected to one end of exhaust duct (7), and the air inlet of silencer (6) is connected to the other end.
2. A mobile gas delivery vacuum pump as claimed in claim 1, wherein: the front end of the pump body (1.1) is provided with a front end cover (1.4), the rear end of the pump body (1.1) is provided with a rear end cover (1.6), and a pair of parallel three-vane involute rotors which are horizontally installed and meshed with each other are arranged in the pump body (1.1). A driving rotor (1.10) and a driven rotor (1.11).
3. A mobile gas delivery vacuum pump as claimed in claim 2, wherein: the driving rotor (1.10) is arranged on a main shaft, the driven rotor (1.11) is arranged on a rotor shaft, the main shaft and the rotor shaft are arranged in the pump body, and the driving rotor (1.10) and the driven rotor (1.11) are respectively arranged in a front end cover (1.4) and a rear end cover (1.6) at two ends of the pump body through bearings (1.8).
4. A mobile gas delivery vacuum pump according to claim 3, wherein: a bearing (1.8) is arranged between the front end cover (1.4) and the main shaft, and a bearing (1.8) is also arranged between the rear end cover (1.6) and the main shaft.
5. A mobile gas delivery vacuum pump as claimed in claim 2, wherein: a rear cover (1.7) is arranged on the rear end cover (1.6), a gear (1.9) is arranged in the rear cover (1.7), and the gear (1.9) is sleeved at the tail end of the main shaft; the driving rotor (1.10) and the driven rotor (1.11) synchronously rotate at a constant speed in the pump body through a pair of synchronous gears (1.9) in the oil tank.
6. A mobile gas delivery vacuum pump according to claim 3, wherein: the front end cover (1.4) is fixedly connected to the front end of the pump body (1.1) through an inner hexagon screw, and the rear end cover (1.6) is fixedly connected to the rear end of the pump body (1.1) through an inner hexagon screw.
7. The mobile gas delivery vacuum pump of claim 6, wherein: be equipped with protecgulum (1.5) on protecgulum (1.4), protecgulum (1.5) are with hexagon socket head cap screw fixed connection in the front side of protecgulum 1.4, be equipped with back lid (1.7) on rear end cap (1.6), back lid (1.7) are with hexagon socket head cap screw fixed connection in the rear side of rear end cap (1.6).
8. A mobile gas delivery vacuum pump according to claim 3, wherein: the output shaft end of the main shaft extends out of the front cover (1.5) and then is connected with the first coupler (2), and the first coupler (2) is connected with the speed reducer (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323404327.9U CN221423436U (en) | 2023-12-14 | 2023-12-14 | Portable gas delivery vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323404327.9U CN221423436U (en) | 2023-12-14 | 2023-12-14 | Portable gas delivery vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221423436U true CN221423436U (en) | 2024-07-26 |
Family
ID=92012278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323404327.9U Active CN221423436U (en) | 2023-12-14 | 2023-12-14 | Portable gas delivery vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221423436U (en) |
-
2023
- 2023-12-14 CN CN202323404327.9U patent/CN221423436U/en active Active
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