CN215214164U - Oil pressure type emulsion pump unloading valve centralized control station - Google Patents
Oil pressure type emulsion pump unloading valve centralized control station Download PDFInfo
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- CN215214164U CN215214164U CN202120118757.6U CN202120118757U CN215214164U CN 215214164 U CN215214164 U CN 215214164U CN 202120118757 U CN202120118757 U CN 202120118757U CN 215214164 U CN215214164 U CN 215214164U
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- valve
- unloading
- pressure
- loading
- pump
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- 239000000839 emulsion Substances 0.000 title claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims description 4
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 230000001804 emulsifying effect Effects 0.000 claims description 2
- 230000010349 pulsation Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 239000003245 coal Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses an oil pressure formula emulsion pump uninstallation valve centralized control station, including the casing, uninstallation valve main valve, liquid accuse pilot valve, solenoid-operated directional valve, overflow valve, hydraulic pump, pressure sensor. The utility model transmits the pressure to the controller through the pressure sensor, when the pressure reaches the set unloading value, the reversing valve is opened to the unloading end, and the pump begins to unload; when the pressure reaches a set loading value, the loading end of the reversing valve is opened to start loading, and the pressure can be loaded and unloaded in time according to a real-time pressure value detected by the pressure sensor; each time of unloading and loading is carried out according to the real-time pressure of the liquid path, so that invalid loading and unloading operations are avoided, the unloading times are reduced, the pulsation is reduced, and the service life of the pump station is prolonged.
Description
Technical Field
The utility model relates to a hydraulic system technical field, concretely relates to oil pressure formula emulsion pump uninstallation valve centralized control station.
Background
Unloading valves are generally arranged in hydraulic systems; among them, in a high-pressure high-flow hydraulic system, a large-bore cartridge valve is generally used to realize the flow discharge. At present, an emulsion support hydraulic support under a national coal mine is directly input into a mining area support from a high-pressure emulsion pump station, the underground coal mine emulsion pump station is high-pressure and has the pressure reaching 40MPa and is a constant-pressure pump, once the liquid consumption is reduced, the loading problem needs to be solved by unloading, the existing unloading mode is mechanical unloading and electronic unloading, the mechanical unloading is frequent, the pulsation is large, the damage to equipment is large, the existing electronic unloading replaces mechanical unloading, but the electronic unloading is not easy to unload due to the fact that the pilot part has too small pilot hole diameter and high requirement on water quality, and the unloading valve cannot be opened due to the fact that the pilot part is limited by electromagnet force, so the existing unloading method is not ideal. In response to this situation, the oil pressure type unloading centralized control station developed by the applicant completely solves the problem.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil pressure formula emulsion pump uninstallation valve centralized control station to solve the problem that above-mentioned background art provided.
In order to achieve the above object, the utility model provides a following technical scheme:
an unloading valve centralized control station of an oil pressure type emulsion pump comprises a shell, an unloading valve main valve, a hydraulic control pilot valve, an electromagnetic directional valve, an overflow valve, a hydraulic pump and a pressure sensor, wherein the unloading valve main valve is connected with the hydraulic control pilot valve;
the unloading valve main valve is arranged in the shell, and a liquid inlet, a liquid outlet and an unloading port are formed in the shell; the liquid inlet is communicated with the emulsifying pump, the liquid outlet is communicated with the hydraulic support, and the unloading port is communicated with the liquid return tank; the unloading valve main valve, the hydraulic pilot valve, the electromagnetic directional valve and the hydraulic pump are communicated in sequence; the overflow valve is arranged between the electromagnetic directional valve and the hydraulic pump and is communicated with the electromagnetic directional valve and the hydraulic pump; the pressure sensor is arranged in the inner cavity of the liquid inlet;
the pressure sensor is electrically connected with a controller, and the controller is also electrically connected with the unloading valve main valve, the hydraulic control pilot valve, the electromagnetic directional valve and the overflow valve respectively;
the controller is used for receiving a current pressure value in the liquid inlet inner cavity detected by the pressure sensor, controlling the electromagnetic directional valve to change the direction to an unloading end after the current pressure value is larger than a set unloading pressure value, and opening the hydraulic control pilot valve and the unloading valve main valve to unload the liquid path; the controller is also used for receiving a current pressure value in the liquid inlet inner cavity detected by the pressure sensor, controlling the electromagnetic directional valve to be reversed to the loading end and closing the hydraulic control pilot valve and the unloading valve main valve to carry out liquid path loading after the current pressure value is lower than a set loading pressure value;
the overflow valve is used for pressure maintaining and stabilizing in the unloading and loading processes of the liquid path.
As the utility model discloses a preferred setting, the solenoid directional valve is tribit four-way solenoid valve.
As the preferred arrangement of the utility model, the pilot hole aperture of the hydraulic control pilot valve is at least 6 mm.
Compared with the prior art, the utility model discloses possess following beneficial effect:
the utility model transmits the pressure to the controller through the pressure sensor, when the pressure reaches the set unloading value, the reversing valve is opened to the unloading end, and the pump begins to unload; when the pressure reaches a set loading value, the loading end of the reversing valve is opened to start loading, and the pressure can be loaded and unloaded in time according to a real-time pressure value detected by the pressure sensor; each time of unloading and loading is carried out according to the real-time pressure of the liquid path, so that invalid loading and unloading operations are avoided, the unloading times are reduced, the pulsation is reduced, and the service life of the pump station is prolonged; meanwhile, the pilot hole is enlarged to 6mm, the problem of blockage caused by small aperture of the pilot hole is solved, and the failure rate caused by small aperture of the pilot hole is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a centralized control station for unloading valves of an oil pressure type emulsion pump;
wherein,
1-an unloader valve main valve;
2-hydraulic control pilot valve;
3-an electromagnetic directional valve;
4-an overflow valve;
5-a hydraulic pump;
6-a pressure sensor;
7-a housing;
8-liquid inlet;
9-a liquid outlet;
10-discharge opening.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, an unloading valve centralized control station of an oil pressure type emulsion pump includes a housing 7, an unloading valve main valve 1, a pilot operated valve 2, a solenoid directional valve 3, an overflow valve 4, a hydraulic pump 5, and a pressure sensor 6;
the unloading valve main valve 1 is arranged inside a shell 7, and a liquid inlet 8, a liquid outlet 9 and an unloading port 10 are arranged on the shell 7; the liquid inlet 8 is communicated with an emulsion pump, the liquid outlet 9 is communicated with a hydraulic support, and the unloading port 10 is communicated with a liquid return tank; the unloading valve main valve 1, the hydraulic pilot valve 2, the electromagnetic directional valve 3 and the hydraulic pump 5 are communicated in sequence; the overflow valve 4 is arranged between the electromagnetic directional valve 3 and the hydraulic pump 5 and is communicated with the electromagnetic directional valve 3 and the hydraulic pump 5; the pressure sensor 6 is arranged in the inner cavity of the liquid inlet 8;
the pressure sensor 6 is electrically connected with a controller, and the controller is also electrically connected with the unloading valve main valve 1, the hydraulic control pilot valve 2, the electromagnetic directional valve 3 and the overflow valve 4 respectively;
the controller is used for receiving a current pressure value in the inner cavity of the liquid inlet 8 detected by the pressure sensor 6, controlling the electromagnetic directional valve 3 to change the pressure value to an unloading end after the current pressure value is larger than a set unloading pressure value, and opening the hydraulic pilot control valve 2 and the unloading valve main valve 1 to unload the liquid path; the controller is also used for receiving a current pressure value in the inner cavity of the liquid inlet 8 detected by the pressure sensor 6, controlling the electromagnetic directional valve 3 to be switched to the loading end and closing the hydraulic pilot control valve 2 and the unloading valve main valve 1 to carry out liquid path loading after the current pressure value is lower than a set loading pressure value;
the overflow valve 4 is used for pressure maintaining and stabilizing in the unloading and loading processes of the liquid path.
As the preferred setting of the embodiment of the utility model, the solenoid directional valve 3 is the three-position four-way solenoid valve.
As the preferred arrangement of the embodiment of the present invention, the pilot hole aperture of the hydraulic control pilot valve 2 is at least 6 mm.
The utility model discloses a theory of operation: presetting an unloading pressure value and a loading pressure value in a controller, detecting a current pressure value in an inner cavity of the liquid inlet 8 by a pressure sensor 6, sending a detection numerical value to the controller, reversing to an unloading end by controlling an electromagnetic reversing valve 3 after the current pressure value is larger than the set unloading pressure value, and opening a hydraulic control pilot valve 2 and an unloading valve main valve 1 to unload the liquid path; and after the current pressure value is lower than the set loading pressure value, controlling the electromagnetic directional valve 3 to be switched to the loading end and closing the hydraulic control pilot valve 2 and the unloading valve main valve 1 to carry out liquid path loading.
The utility model detects the pressure through the pressure sensor 6 and transmits the pressure to the controller, when the pressure reaches the set unloading value, the electromagnetic directional valve 3 is opened to the unloading end, and the pump begins to unload; when the pressure reaches a set loading value, the loading end of the electromagnetic directional valve 3 is opened, loading is started, and timely loading and unloading can be carried out according to a real-time pressure value detected by the pressure sensor 6; each time of unloading and loading is carried out according to the real-time pressure of the liquid path, so that invalid loading and unloading operations are avoided, the unloading times are reduced, the pulsation is reduced, and the service life of the pump station is prolonged; meanwhile, the pilot hole is enlarged to 6mm, the problem of blockage caused by small aperture of the pilot hole is solved, and the failure rate caused by small aperture of the pilot hole is reduced.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the claims above, any of the claimed embodiments may be used in any combination. The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
Claims (3)
1. An unloading valve centralized control station of an oil pressure type emulsion pump is characterized by comprising a shell, an unloading valve main valve, a hydraulic control pilot valve, an electromagnetic directional valve, an overflow valve, a hydraulic pump and a pressure sensor;
the unloading valve main valve is arranged in the shell, and a liquid inlet, a liquid outlet and an unloading port are formed in the shell; the liquid inlet is communicated with the emulsifying pump, the liquid outlet is communicated with the hydraulic support, and the unloading port is communicated with the liquid return tank; the unloading valve main valve, the hydraulic pilot valve, the electromagnetic directional valve and the hydraulic pump are communicated in sequence; the overflow valve is arranged between the electromagnetic directional valve and the hydraulic pump and is communicated with the electromagnetic directional valve and the hydraulic pump; the pressure sensor is arranged in the inner cavity of the liquid inlet;
the pressure sensor is electrically connected with a controller, and the controller is also electrically connected with the unloading valve main valve, the hydraulic control pilot valve, the electromagnetic directional valve and the overflow valve respectively;
the controller is used for receiving a current pressure value in the liquid inlet inner cavity detected by the pressure sensor, controlling the electromagnetic directional valve to change the direction to an unloading end after the current pressure value is larger than a set unloading pressure value, and opening the hydraulic control pilot valve and the unloading valve main valve to unload the liquid path; the controller is also used for receiving a current pressure value in the liquid inlet inner cavity detected by the pressure sensor, controlling the electromagnetic directional valve to be reversed to the loading end and closing the hydraulic control pilot valve and the unloading valve main valve to carry out liquid path loading after the current pressure value is lower than a set loading pressure value;
the overflow valve is used for pressure maintaining and stabilizing in the unloading and loading processes of the liquid path.
2. The centralized control station of an oil pressure emulsion pump unloading valve as claimed in claim 1, wherein the electromagnetic directional valve is a three-position four-way solenoid valve.
3. The centralized control station of an oil pressure emulsion pump unloader valve according to claim 1, wherein the pilot operated valve has a pilot hole diameter of at least 6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120118757.6U CN215214164U (en) | 2021-01-18 | 2021-01-18 | Oil pressure type emulsion pump unloading valve centralized control station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120118757.6U CN215214164U (en) | 2021-01-18 | 2021-01-18 | Oil pressure type emulsion pump unloading valve centralized control station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215214164U true CN215214164U (en) | 2021-12-17 |
Family
ID=79437625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120118757.6U Expired - Fee Related CN215214164U (en) | 2021-01-18 | 2021-01-18 | Oil pressure type emulsion pump unloading valve centralized control station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215214164U (en) |
-
2021
- 2021-01-18 CN CN202120118757.6U patent/CN215214164U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211217 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |