CN205559258U - Take hand to unload unloader valve of valve - Google Patents
Take hand to unload unloader valve of valve Download PDFInfo
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- CN205559258U CN205559258U CN201620409660.XU CN201620409660U CN205559258U CN 205559258 U CN205559258 U CN 205559258U CN 201620409660 U CN201620409660 U CN 201620409660U CN 205559258 U CN205559258 U CN 205559258U
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- unload
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Abstract
The utility model provides a take hand to unload unloader valve of valve, includes the valve body, opens two holes that have vertical direction parallel in the valve body, downthehole installation pilot valve on the left, and the pilot valve bottom is connected with out liquid and connects the downthehole installation main valve in the right, valve body right -hand member horizontal direction is opened has two horizontal holes, and the horizontal downthehole installation hand on upper portion unloads the valve, and the horizontal downthehole installation check valve of lower part is installed and is provided with the feed liquor hole on the valve body that the check valve located, it installs the technology plug respectively with sealed stifled to be located the valve body end that the hand unloaded valve top, the mounting structure that the hand unloaded the valve does: unload the valve disk seat including installing horizontal downthehole hand in the lower part, the hand unloads on the valve disk seat installation hand and unloads the valve case, and the hand unloads on the outer circumference of valve case the cover has the hand to unload the valve valve casing, and outside that the hand unloaded the valve valve casing still is covered with the protection casing, and the hand unloads the valve case and stretches out the hand and unload valve valve casing outside to at its head installation hand wheel. Unload the valve through the hand and uninstall, realize that emulsion pump's unloaded the start -up is shut down with unloaded, increased emulsion pump mechanical properties and life, it is with low costs.
Description
Technical field
The utility model relates to pumping plant hydraulic pressure applied technical field, especially a kind of for coal mine fully-mechanized mining working emulsion pump unloading valve.
Background technology
At present, emulsion pump mechanical type feather valve, generally it is made up of, respectively 3 parts: primary valve part, check valve part, pilot valve (pressure regulator valve) part.Emulsion pump is when dispatching from the factory, and feather valve pressure has been set up complete.Because down-hole facility is simple and crude, feather valve pressure regulation is difficult and loaded down with trivial details, when emulsion pump normally starts, staff generally first will not carry out pressure release to feather valve, thus cause, in energy start-up course, a high pressure chest to be formed in feather valve valve pocket, causing emulsion pump startup with pressure, infringement to motor and emulsion pump parts is very big, greatly reduces the service life of emulsion pump.
Utility model content
The applicant is for the shortcoming in above-mentioned existing production technology, it is provided that a kind of band hand unloads the feather valve of valve, thus unloads valve by hand, and feather valve is carried out pressure release, it is achieved the No Load Start of emulsion pump and unloaded termination of pumping.Also can go wrong at feather valve pilot valve (pressure regulator valve) simultaneously, in the case of pressure persistently rises, the pressure release that feather valve is met an urgent need.
The technical scheme that the utility model is used is as follows:
A kind of band hand unloads the feather valve of valve, including valve body, has two holes that vertical direction is parallel in described valve body, installs pilot valve in the hole on the left side, and being positioned at bottom pilot valve to connect has liquid joint, installs main valve in hole, the right；Described valve body right-hand member horizontal direction has two transverse holes, installs hand and unload valve in the transverse holes on top, installs check valve in the transverse holes of bottom, installs and is provided with inlet opening on the valve body at check valve；It is positioned at hand to unload the valve end above valve and be separately installed with technique screw plug and seal plug；Described hand unloads the mounting structure of valve: include that the hand being arranged in the transverse holes of bottom unloads valve base, described hand unloads installation hand on valve base and unloads valve core, described hand unloads and is cased with hand on the excircle of valve core and unloads valve valve casing, described hand unloads the outside of valve valve casing and is also covered with protective cover, described hand unloads valve core and reaches and unload outside valve valve casing, and installs handwheel at its head.
Its further technical scheme is:
Described hand unloads the outer circumference surface of valve valve casing and is provided with step, and described step surface is close to valve body；
The transverse holes of excircle and valve body top that described hand unloads valve valve casing is sealed by sealing ring.
The beneficial effects of the utility model are as follows:
The utility model compact conformation, rationally, easy to operate, primary structure is unloaded valve by hand, main valve, check valve, pilot valve form.Emulsion is no longer necessary to produce pressure reduction by pilot valve up and down at main valve, thus pushes main valve open and unload.Can unload valve starting or directly opening hand in the course of work, emulsion unloads valve by hand and unloads.
The utility model, compared with standard machinery formula feather valve, unloads valve by hand and unloads, it is achieved the No Load Start of emulsion pump and unloaded shutdown
, adding emulsion pump mechanical performance and service life, cost is cheaper than electromagnetic unloading valve.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation that the utility model hand unloads valve.
Wherein: 1, pilot valve；2, main valve；3, valve body；4, technique screw plug；5, hand unloads valve；6, inlet opening；7, check valve；8, liquid joint is gone out；9, hand unloads valve base；10, hand unloads valve core；11, seal plug；12, hand unloads valve valve casing；13, protective cover；14, handwheel.
Detailed description of the invention
Below in conjunction with the accompanying drawings, detailed description of the invention of the present utility model is described.
As depicted in figs. 1 and 2, the band hand of the present embodiment unloads the feather valve of valve, including valve body 3, two holes that vertical direction is parallel are had in valve body 3, form pilot valve cavity and main valve cavity respectively, installing pilot valve 1 in the hole on the left side, being positioned at bottom pilot valve 1 to connect has liquid joint 8, installs main valve 2 in hole, the right；Valve body 3 right-hand member horizontal direction has two transverse holes, forms hand respectively and unloads valve chamber and check valve cavity, install hand and unload valve 5 in the transverse holes on top, install check valve 7 in the transverse holes of bottom, installs and be provided with inlet opening 6 on the valve body 3 at check valve 7；It is positioned at valve body 3 end that hand unloads above valve 5 and is separately installed with technique screw plug 4 and seal plug 11；Hand unloads the mounting structure of valve 5: include that the hand being arranged in the transverse holes of bottom unloads valve base 9, hand unloads installation hand on valve base 9 and unloads valve core 10, hand unloads and is cased with hand on the excircle of valve core 10 and unloads valve valve casing 12, hand unloads the outside of valve valve casing 12 and is also covered with protective cover 13, hand unloads valve core 10 and reaches that to unload valve valve casing 12 outside, and installs handwheel 14 at its head.
Hand unloads the outer circumference surface of valve valve casing 12 and is provided with step, and step surface is close to valve body 3.
The transverse holes of excircle and valve body 3 top that hand unloads valve valve casing 12 is sealed by sealing ring.
During actually used:
(1) normal operating conditions, hand unloads valve 5 and closes, and enters from inlet opening 6 from pumping plant pressure liquid out, is then divided into two-way, and nonreturn valve core is pushed on a road open, then from the hydraulic control on the left side directly by going out liquid joint 8, enters working face.The aperture on main valve plug the most up, through liquid pass hole, is then passed through, after main valve plug in another road, making pressure balance before and after main valve plug, spring promotes main valve plug, is that main valve is closed all the time, pressure liquid passes through liquid pass hole, by guide's valve seat, enters in pilot valve.When the pressure of working face reaches set pressure, pressure liquid promotes pilot valve, jack-up spring bowl, the pressure liquid in pilot valve enters liquid pass hole by pilot valve top aperture, flows to unloading hole for back flow, cause main valve inside and outside generation pressure reduction, main valve open, pressure liquid is unloaded by main valve chamber, due to pressure reduction, closed check valve, the pressure of working face keeps balance.
(2) No Load Start, emulsion pump prestart, first opens hand and unloads valve 5, after emulsion pump starts, pressure liquid is no longer pass through main valve and check valve, but directly unload valve pocket by hand, enter unloading liquid return hole unloading liquid-return box, in making feather valve, keep zero-pressure state, emulsion pump realizes No Load Start, after starting, closing hand and unload valve, feather valve is operated according to normal operating conditions.
Band hand of the present utility model unloads the feather valve of valve, easy to operate, preferably realizes the No Load Start of emulsion pump and unloaded shutdown, adds emulsion pump mechanical performance and service life.
Above description is to explanation of the present utility model, is not the restriction to utility model, and the utility model limited range sees claim, within protection domain of the present utility model, can make any type of amendment.
Claims (3)
1. a band hand unloads the feather valve of valve, it is characterized in that: include valve body (3), in described valve body (3), have two holes that vertical direction is parallel, pilot valve (1) is installed in the hole on the left side, it is positioned at the connection of pilot valve (1) bottom and has liquid joint (8), main valve (2) is installed in hole, the right；Described valve body (3) right-hand member horizontal direction has two transverse holes, installs hand and unload valve (5) in the transverse holes on top, installs check valve (7) in the transverse holes of bottom, installs and is provided with inlet opening (6) on the valve body (3) at check valve (7) place；Be positioned at hand unload valve (5) top valve body (3) end be separately installed with technique screw plug (4) and seal plug (11)；Described hand unloads the mounting structure of valve (5): include that the hand being arranged in the transverse holes of bottom unloads valve base (9), described hand unloads the upper hand of installing of valve base (9) and unloads valve core (10), described hand unloads and is cased with hand on the excircle of valve core (10) and unloads valve valve casing (12), described hand unloads the outside of valve valve casing (12) and is also covered with protective cover (13), described hand unloads valve core (10) and reaches that to unload valve valve casing (12) outside, and installs handwheel (14) at its head.
A kind of band hand the most as claimed in claim 1 unloads the feather valve of valve, it is characterised in that: described hand unloads the outer circumference surface of valve valve casing (12) and is provided with step, and described step surface is close to valve body (3).
A kind of band hand the most as claimed in claim 1 unloads the feather valve of valve, it is characterised in that: the transverse holes of excircle and valve body (3) top that described hand unloads valve valve casing (12) is sealed by sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409660.XU CN205559258U (en) | 2016-05-09 | 2016-05-09 | Take hand to unload unloader valve of valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620409660.XU CN205559258U (en) | 2016-05-09 | 2016-05-09 | Take hand to unload unloader valve of valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205559258U true CN205559258U (en) | 2016-09-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620409660.XU Active CN205559258U (en) | 2016-05-09 | 2016-05-09 | Take hand to unload unloader valve of valve |
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| Country | Link |
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| CN (1) | CN205559258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117570077A (en) * | 2024-01-16 | 2024-02-20 | 无锡煤矿机械股份有限公司 | Unloading valve |
-
2016
- 2016-05-09 CN CN201620409660.XU patent/CN205559258U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117570077A (en) * | 2024-01-16 | 2024-02-20 | 无锡煤矿机械股份有限公司 | Unloading valve |
| CN117570077B (en) * | 2024-01-16 | 2024-03-19 | 无锡煤矿机械股份有限公司 | Unloading valve |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |