CN218542697U - Cone structure gas drainage pump for coal mine - Google Patents
Cone structure gas drainage pump for coal mine Download PDFInfo
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- CN218542697U CN218542697U CN202222737742.5U CN202222737742U CN218542697U CN 218542697 U CN218542697 U CN 218542697U CN 202222737742 U CN202222737742 U CN 202222737742U CN 218542697 U CN218542697 U CN 218542697U
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- extending section
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Abstract
The utility model relates to a cone structure gas drainage pump for coal mine, include: a pump housing; a rotor eccentrically disposed within the pump housing; the impeller is fixedly connected with the rotor; the conical distributor is used for the rotor to penetrate through, one end of the conical distributor is fixed at the end part of the pump shell, and the other end of the conical distributor extends into the pump shell; compared with the traditional flat disc structure, the device adopts the conical distributor which extends into the pump shell, so that the openings of the air inlet channel and the air outlet channel are respectively arranged on the outer wall of the extending section and the end cover, the sizes of the openings of the air inlet channel and the air outlet channel can be very large, and the openings of the air inlet channel and the air outlet channel extend into She Luncang, so that the channel for air to enter the pump body is very smooth, the air inlet and exhaust resistance is reduced, and the efficiency is higher; the pumping and exhaust volume of the gas extraction pump is improved.
Description
Technical Field
The utility model relates to a gas drainage pump, especially a cone structure gas drainage pump for coal mine.
Background
The gas extraction pump drives the working liquid seat to do centrifugal motion through the rotation of the eccentric impeller, so that gas is sucked and discharged, and the gas extraction is realized;
the distributor of the existing gas extraction pump is a flat disc, and an air inlet and an air outlet are formed in the flat disc; the geometrical sizes of the openings of the air inlet and the air outlet cannot be very large due to the formation of the water ring and the upward eccentric position limitation of the impeller, and the air suction volume and the air discharge volume are correspondingly reduced;
in conclusion, how to increase the pumping and exhaust capacities of gas extraction pumps is an urgent problem to be solved by researchers in the field.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: how to improve the vacuum limit and the air extraction amount of the gas extraction pump;
in order to solve the technical problem, the utility model discloses the technical scheme who takes does:
the utility model relates to a cone structure gas drainage pump for coal mine, include: a pump housing; a rotor eccentrically disposed within the pump housing; the impeller is fixedly connected with the rotor; the conical distributor is used for the rotor to penetrate through, one end of the conical distributor is fixed at the end part of the pump shell, and the other end of the conical distributor extends into the pump shell;
the cone-shaped dispenser comprises: an end cap coupled to the end cap of the pump housing; one end of the extending section is fixedly arranged with the end cover, the other end of the extending section extends into the pump shell, and the diameter of the outer wall of the extending section is gradually reduced along the axial direction; an air inlet channel, wherein an opening at one end of the air inlet channel is arranged at the end cover, and an opening at the other end of the air inlet channel is arranged at the outer wall of the extending section; an opening at one end of the air outlet channel is arranged at the end cover, and an opening at the other end of the air outlet channel is arranged at the outer wall of the extending section; the area of the opening at the outer wall of the air inlet channel is larger than that of the opening at the outer wall of the air outlet channel; the area of the opening at the end cover of the air inlet channel is larger than that of the opening at the outer wall of the air outlet channel.
Compared with the traditional flat disc structure, the device adopts the conical distributor which extends into the pump shell, so that the openings of the air inlet channel and the air outlet channel are respectively arranged on the outer wall of the extending section and the end cover, the sizes of the openings of the air inlet channel and the air outlet channel can be very large, and the openings of the air inlet channel and the air outlet channel extend into She Luncang, so that the channel for air to enter the pump body is very smooth, the air inlet and exhaust resistance is reduced, and the efficiency is higher;
in addition, the flat disk has the advantages that the air inlet and the air outlet are arranged on the end face, so that each end of the impeller can only be opened, the firmness of the whole impeller is poor, the impeller is mostly in a welding mode due to the structure, and the pump has more parts and is more complex in structure; the air inlet channel and the air outlet channel of the cone are designed on the extending section, the extending section extends into the pump body, the whole impeller is formed by one-step casting, and the whole end of the impeller is reinforced in a whole annular mode, so that the impeller is very firm in structure. By adopting the structure, the device can effectively resist the damage of water hammer and metal carried in the working solution;
the cross-sectional area of the air inlet channel is larger than that of the air outlet channel, so that gas can be ensured to be smoothly sucked from the air inlet channel, compressed by the impeller and discharged from the air outlet channel.
This device has guaranteed higher extraction rate under the high negative pressure condition, can directly be applied to the taking out of this coal seam gas, improves colliery and takes out the extraction efficiency, and the gas concentration that directly takes out simultaneously is higher, can directly be applied to gas power generation, avoids the difficult problem that low concentration gas utilization needs further compression, has improved entire system availability factor.
In order to limit the axial movement of the rotor, the diameter of the inner ring of the extending section is gradually increased along the axial direction; the rotor is inserted into the inner ring of the extending section and matched with the inner ring surface'
The inner ring of the extending section is in conical surface fit with the outer ring of the end part of the rotor, and compared with the fit of a straight hole and a cylinder, the reducing fit can limit the axial movement of the rotor.
The utility model has the advantages that: the utility model relates to a cone structure gas drainage pump for coal mine, compare in traditional flat disc structure, this device adopts the toper distributor, and the toper distributor stretches into to the pump case, and so inlet channel, the opening of air outlet channel set up respectively on stretching into the outer wall and the end cover of section, and inlet channel, the opening size of air outlet channel can be done very big, and go deep into She Luncang, therefore make the passageway that the gas got into the pump body very unobstructed, reduced the resistance of admitting air and exhausting, make it more efficient; the pumping and exhaust volume of the gas extraction pump is improved.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a side view of a cone-shaped dispenser;
FIG. 3 is a schematic view of another view of the construction of the cone-shaped dispenser;
in the figure: 1-pump shell, 2-rotor, 3-impeller, 4-end cover, 5-extending section, 6-air inlet channel and 7-air outlet channel.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic drawings, which illustrate the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1-3, the utility model relates to a cone structure gas drainage pump for coal mine, include: a pump housing 1; a rotor 2 eccentrically disposed in the pump housing 1; an impeller 3 fixedly connected to the rotor 2; the conical distributor is used for the rotor 2 to penetrate through, one end of the conical distributor is fixed at the end part of the pump shell 1, and the other end of the conical distributor extends into the pump shell 1;
the cone-shaped dispenser comprises: an end cover 4 connected to an end cover of the pump housing 1; one end of the extending section 5 is fixedly arranged with the end cover 4, the other end of the extending section extends into the pump shell 1, and the diameter of the outer wall of the extending section is gradually reduced along the axial direction; an air inlet channel 6, wherein an opening at one end is arranged at the end cover 4, and an opening at the other end is arranged at the outer wall of the extending section 5; an opening at one end of the air outlet channel 7 is arranged at the end cover 4, and an opening at the other end of the air outlet channel is arranged at the outer wall of the extending section 5; wherein, the area of the opening at the outer wall of the air inlet channel 6 is larger than that of the opening at the outer wall of the air outlet channel 7; the area of the opening at the end cap of inlet channel 6 is larger than the area of the opening at the outer wall of outlet channel 7.
Compared with the traditional flat disc structure, the device adopts the conical distributor which extends into the pump shell, so that the openings of the air inlet channel and the air outlet channel are respectively arranged on the outer wall of the extending section and the end cover, the sizes of the openings of the air inlet channel and the air outlet channel can be very large, and the openings of the air inlet channel and the air outlet channel extend into She Luncang, so that the channel for air to enter the pump body is very smooth, the air inlet and exhaust resistance is reduced, and the efficiency is higher;
in addition, because the air inlet and the air outlet are arranged on the end surface of the flat disc, each end of the impeller can only be opened, the firmness of the whole impeller is poor, the impeller is mostly in a welding type due to the structure, and the pump has more parts and more complex structure; the air inlet channel and the air outlet channel of the cone are designed on the extending section, the extending section extends into the pump body, the whole impeller is formed by one-step casting, and the whole end of the impeller is reinforced in a whole annular mode, so that the impeller is very firm in structure. By adopting the structure, the device can effectively resist the damage of water hammer and metal carried in the working solution;
the cross-sectional area of the air inlet channel is larger than that of the air outlet channel, so that gas can be ensured to be smoothly sucked from the air inlet channel, compressed by the impeller and discharged from the air outlet channel.
This device has guaranteed higher extraction rate under the high negative pressure condition, can directly be applied to the taking out of this coal seam gas, improves colliery and takes out the extraction efficiency, and the gas concentration that directly takes out simultaneously is higher, can directly be applied to gas power generation, avoids the difficult problem that low concentration gas utilization needs further compression, has improved entire system availability factor.
As shown in fig. 1-3, in order to limit the axial play of the rotor, the diameter of the inner ring of the extending section 5 is gradually increased along the axial direction; the rotor 2 is inserted into the inner ring of the extending section 5 and matched with the inner ring in shape;
the inner ring of the extending section is in conical surface fit with the outer ring of the end part of the rotor, and compared with the fit of a straight hole and a cylinder, the reducing fit can limit the axial movement of the rotor.
As shown in figure 1, both sides of the pump shell of the device can realize gas pumping and discharging.
As shown in fig. 2-3, the conical distributor in the present apparatus can be provided with two inlet channels and two outlet channels.
The utility model relates to a cone structure gas drainage pump for coal mine, compare in traditional flat disc structure, this device adopts the toper distributor, and the toper distributor stretches into to the pump case, and so inlet channel, outlet channel's opening are seted up respectively on stretching into the outer wall of section and end cover, and inlet channel, outlet channel's opening size can be done very greatly to deepen She Luncang, therefore make the passageway that the gas got into the pump body very unobstructed, reduced the resistance of admitting air and exhausting, make it more efficient; the pumping and exhaust capacity of the gas extraction pump is improved.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (3)
1. The utility model provides a cone structure gas drainage pump for coal mine which characterized in that includes:
a pump housing;
a rotor eccentrically disposed within the pump housing;
the impeller is fixedly connected with the rotor;
and the conical distributor is used for the rotor to penetrate through, one end of the conical distributor is fixed at the end part of the pump shell, and the other end of the conical distributor extends into the pump shell.
2. The gas extraction pump with the cone structure for the coal mine as claimed in claim 1, wherein the cone distributor comprises:
an end cap coupled to the end cap of the pump housing;
one end of the extending section is fixedly arranged with the end cover, the other end of the extending section extends into the pump shell, and the diameter of the outer wall of the extending section is gradually reduced along the axial direction;
an air inlet channel, wherein an opening at one end of the air inlet channel is arranged at the end cover, and an opening at the other end of the air inlet channel is arranged at the outer wall of the extending section;
an opening at one end of the air outlet channel is arranged at the end cover, and an opening at the other end of the air outlet channel is arranged at the outer wall of the extending section;
the area of the opening at the outer wall of the air inlet channel is larger than that of the opening at the outer wall of the air outlet channel;
the area of the opening at the end cover of the air inlet channel is larger than that of the opening at the outer wall of the air outlet channel.
3. The coal mine cone structure gas extraction pump according to claim 2, wherein the diameter of the inner ring of the extending section is gradually increased along the axial direction;
the rotor is inserted into the inner ring of the extending section and matched with the inner ring in shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222737742.5U CN218542697U (en) | 2022-10-18 | 2022-10-18 | Cone structure gas drainage pump for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222737742.5U CN218542697U (en) | 2022-10-18 | 2022-10-18 | Cone structure gas drainage pump for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218542697U true CN218542697U (en) | 2023-02-28 |
Family
ID=85280755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222737742.5U Active CN218542697U (en) | 2022-10-18 | 2022-10-18 | Cone structure gas drainage pump for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218542697U (en) |
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2022
- 2022-10-18 CN CN202222737742.5U patent/CN218542697U/en active Active
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