CN203670970U - Butterfly valve travel switch device and hydraulic control butterfly valve - Google Patents
Butterfly valve travel switch device and hydraulic control butterfly valve Download PDFInfo
- Publication number
- CN203670970U CN203670970U CN201420013902.4U CN201420013902U CN203670970U CN 203670970 U CN203670970 U CN 203670970U CN 201420013902 U CN201420013902 U CN 201420013902U CN 203670970 U CN203670970 U CN 203670970U
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- limit switch
- fully open
- butterfly valve
- control
- position limit
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- 239000003921 oil Substances 0.000 claims description 68
- 230000001960 triggered effect Effects 0.000 claims description 11
- 230000001360 synchronised effect Effects 0.000 claims description 10
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 238000009987 spinning Methods 0.000 claims description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Fluid-Driven Valves (AREA)
Abstract
The utility model discloses a butterfly valve travel switch device and a hydraulic control butterfly valve. The device comprises a fully-closed position travel switch (1), a fully-opened position travel switch (2), a control position travel switch (3) and a rotary plate (4). The rotary plate can synchronously rotate along with rotation of a butterfly plate (5) in the butterfly valve, the three travel switches are sequentially distributed along the circumference of the rotary plate, the outer edge of the rotary plate is further provided with a fully-closed position contact portion (41), a fully-opened position contact portion (42) and a control position contact portion (43) in the circumferential direction, and accordingly the rotary plate can trigger the corresponding travel switch when rotating to a fully-closed position, a fully-opened position or a control position. By means of the device, the rotary plate can synchronously rotate precisely and reliably along with the butterfly plate, so that the switch device is reliable in motion and is not influenced by environment or structure aging. The three travel switches are distributed on the circumference, display is visual, and the device is convenient to adjust, replace and maintain.
Description
Technical field
The utility model relates to a kind of butterfly valve, especially, relates to the stroke switchgear on a kind of hydraulic butterfly valve.
Background technique
In the sectional structure of butterfly valve as shown in Figure 1, butterfly plate 5 is installed in the valve pocket in housing 8, butterfly plate 5 is arranged on valve rod 6, and valve rod 6 is supported in housing 8 or valve body rotationally by stuffing box 7.The rotation that rotarily drives butterfly plate 5 of valve rod 6, thus open or close valve pocket with different apertures.
Butterfly valve is usually used in controlling the fluid break-make by wherein or flowing through flow, for example, be arranged on the hydraulic butterfly valve in the circulating water pump outlet port of generator set.This hydraulic butterfly valve generally disposes the hydraulic control system that comprises oil pump and oil cylinder, and oil pump drives butterfly plate to rotate to the rodless cavity pumps hydraulic oil of oil cylinder with supercharging control by oil-feed oil circuit.Correspondingly, butterfly valve also has stroke switchgear, for switch and aperture in conjunction with above-mentioned hydraulic control system control butterfly plate.Butterfly valve stroke switchgear generally comprises fully open position position limit switch, complete shut-down position position limit switch and control position position limit switch.When butterfly plate is during in complete shut-down state, can be by triggering the oil return circuit of complete shut-down position position limit switch with blocking-up hydraulic control system, and start the rodless cavity pumps hydraulic oil of oil pump to oil cylinder, and overcome the pressure of the weight in butterfly valve and promote butterfly plate and rotate to maximum opening position, butterfly plate is in full-gear; Now can trigger fully open position position limit switch, oil pump is quit work; Then, because oil pump quits work, butterfly plate is slowly revolution under weight effect, until in a control aperture state, and then trigger control position position limit switch, and start once again oil pump, butterfly plate aperture is increased once again.So just make butterfly plate in full-gear and control normal cycle operation between aperture state.
In prior art, above-mentioned three position limit switches are integrated on a switch combination unit conventionally, between valve rod 6 and switch combination unit, there is driving mechanism, when butterfly plate 5 is during in different opening, three sensitive switches that three little cams on driving mechanism are pushed down on switch combination unit move to characterize butterfly valve in three different opening positions.But, because hydraulic butterfly valve is easily subject to the influence of moisture such as tide, salt, after the aging of equipment, cause above-mentioned driving mechanism to be difficult to transmit accurately and rigidly the rotation angle information of butterfly plate 5, cause position limit switch can not correctly characterize the physical location of butterfly valve.In the time that butterfly plate 5 reality have turned to full-gear, fully open position position limit switch may not yet trigger, and oil pump cannot be stopped transport automatically, causes the operating oil pressure superpressure in hydraulic control system, damage equipment.When butterfly plate 5 has returned back to the aperture state of controlling; for example, while being down to 90% aperture position; control position position limit switch does not trigger in time; oil pump cannot start automatically; cause butterfly valve because charge oil pressure deficiency continues to close; in the circulating water pump of generator set, make the most at last circulating water pump trip protection, the operation of generator set load down, even stops transport.
Visible in the circulating water pump of generator set, there is obvious defect in the switch combination unit of above-mentioned prior art.Because circulating water region is easily subject to the influence of moisture such as tide, salt, the easy corrosion and ageing of driving mechanism between valve rod 6 and switch combination unit, finally causes transmission effectively and accurately, makes each position limit switch cannot correct operation.In addition, because three position limit switches are integrated on a switch combination unit, and switch combination unit is generally arranged on the inner side of butterfly valve, and installing space compactness, cause the bad adjustment in mounting point of position limit switch, when butterfly valve normally moves, cannot change online the position limit switch that produces fault.
Model utility content
The purpose of this utility model is to provide a kind of butterfly valve stroke switchgear, and has the hydraulic butterfly valve of this butterfly valve stroke switchgear, makes reliable in action, the direct display of butterfly valve stroke switchgear and be convenient to adjust, safeguard.
For achieving the above object, the utility model provides a kind of butterfly valve stroke switchgear, this device comprises complete shut-down position position limit switch, fully open position position limit switch, control position position limit switch and rotating disk, this rotating disk is set to follow the rotation of the butterfly plate in butterfly valve and produces synchronous spinning, described complete shut-down position position limit switch, fully open position position limit switch and control position position limit switch are circumferentially arranged successively along described rotating disk, on the outward edge of described rotating disk, be also provided with the complete shut-down location triggered portion arranging successively along circumferentially, fully open position trigger unit and control position trigger unit, to make at described turntable rotation to complete shut-down position, when fully open position or control position, can trigger accordingly described complete shut-down position position limit switch, fully open position position limit switch or control position position limit switch, wherein, described turntable rotation is during to complete shut-down position, fully open position or control position, and described butterfly plate is in corresponding complete shut-down state, full-gear or control aperture state.
Preferably, described complete shut-down location triggered portion, fully open position trigger unit and control position trigger unit are protruded from the edge radially outward of described rotating disk, and the correspondingly spaced radial setting of described edge of described complete shut-down position position limit switch, fully open position position limit switch and control position position limit switch and described rotating disk.
Preferably, described fully open position trigger unit radially protrude the radially protrusion length that length is greater than described control position trigger unit.
Preferably, along week of described rotating disk upwards, the interval angle between the described complete shut-down location triggered portion of described fully open position trigger unit and a side is 90 °, the opposite side of described fully open position trigger unit arranges described control position trigger unit; Interval angle between the described complete shut-down position position limit switch of described fully open position position limit switch and a side is 180 °, described control position position limit switch is arranged on the opposite side of described fully open position position limit switch, and interval angle between described control position position limit switch and described fully open position position limit switch equals the interval angle between described control position trigger unit and described fully open position trigger unit.
Preferably, described turntable rotation is when the described control position, and the residing described control aperture state of described butterfly plate is 80% aperture state or 90% aperture state.
Preferably, the center of described rotating disk is provided with threaded mounting hole.
On the basis of above-mentioned butterfly valve stroke switchgear, the utility model also provides a kind of hydraulic butterfly valve, and this hydraulic butterfly valve comprises butterfly plate, valve rod, hydraulic control system and above-mentioned butterfly valve stroke switchgear, wherein:
Described butterfly plate is arranged on one end of described valve rod and rotates around this valve rod, and described rotating disk is installed on the other end of described valve rod or the outrigger shaft of this valve rod coaxially, to keep and the synchronous rotary of described butterfly plate;
Described hydraulic control system comprises oil pump and oil cylinder, described oil pump drives described butterfly plate to rotate to the rodless cavity pumps hydraulic oil of described oil cylinder with supercharging control by oil-feed oil circuit, the rodless cavity of described oil cylinder can also pass through oil return circuit pressure release oil return, in described oil return circuit, be provided with oil drain switch valve, described complete shut-down position position limit switch and described oil drain switch valve link to control the break-make of described oil return circuit, described fully open position position limit switch quits work for control described oil pump under triggering state, described control position position limit switch for starting described oil pump under triggering state.
Preferably, described hydraulic butterfly valve comprises housing, and described complete shut-down position position limit switch, fully open position position limit switch and control position position limit switch are installed in the outside of described housing.
Preferably, described hydraulic butterfly valve is heavy hammer type butterfly valve.
Pass through technique scheme, no longer three position limit switches are integrated in a switch combination unit according to butterfly valve stroke switchgear of the present utility model, but rotating disk is set to follow the rotation of the butterfly plate in butterfly valve and produces synchronous spinning, for example rotating disk is directly installed on the valve rod or its outrigger shaft of butterfly valve, thereby make the rotating disk can be accurately and reliably and butterfly plate synchronous rotary, thereby the reliable in action of switch gear, be not subject to environment or structure burn-in effects.Upwards direct display, and three position limit switches are independent, conveniently regulated, changed and safeguard the week that three position limit switches are arranged in rotating disk.In the time being installed on butterfly valve, three position limit switches more can be installed to hull outside, the operation of being more convenient for.
Other feature and advantage of the present utility model are described in detail the embodiment part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the sectional view of the butterfly plate mounting structure in butterfly valve;
Fig. 2 is that wherein turntable rotation is to complete shut-down position according to the schematic diagram of the butterfly valve stroke switchgear of preferred implementation of the present utility model;
Fig. 3 and Fig. 2 are similar, and rotating disk wherein continues counterclockwise to turn to fully open position after half-twist on the basis of Fig. 2; And
Fig. 4 and Fig. 3 are similar, and rotating disk wherein continues rotation and returns back to clockwise control position on the basis of Fig. 3.
description of reference numerals
1 complete shut-down position position limit switch 2 fully open position position limit switches
3 control position position limit switch 4 rotating disks
5 butterfly plate 6 valve rods
7 stuffing box 8 housings
41 complete shut-down location triggered portion 42 fully open position trigger units
43 control position trigger unit 44 threaded mounting holes
Embodiment
Below, describe in detail with reference to the accompanying drawings according to mode of execution of the present utility model.Should be understood that, embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that not doing contrary explanation, the noun of locality of use as " upper and lower, top, the end " normally for direction shown in the drawings or for the each parts mutual alignment relationship description word vertically, on vertical or gravitational direction.
As shown in Figure 2, the utility model provides a kind of butterfly valve stroke switchgear.Visible in conjunction with Fig. 1, this device comprises complete shut-down position position limit switch 1, fully open position position limit switch 2, control position position limit switch 3 and rotating disk 4, this rotating disk 4 is set to follow the rotation of the butterfly plate 5 in butterfly valve and produces synchronous spinning, complete shut-down position position limit switch 1, fully open position position limit switch 2 and control position position limit switch 3 are circumferentially arranged successively along rotating disk 4, on the outward edge of rotating disk 4, be also provided with the complete shut-down location triggered portion 41 arranging successively along circumferentially, fully open position trigger unit 42 and control position trigger unit 43, rotate to complete shut-down position at rotating disk 4 making, when fully open position or control position, can trigger accordingly complete shut-down position position limit switch 1, fully open position position limit switch 2 or control position position limit switch 3, wherein, when rotating disk 4 rotates to complete shut-down position, fully open position or control position, butterfly plate 5 is in corresponding complete shut-down state, full-gear or control aperture state.As total design aim, for avoiding butterfly valve stroke switchgear of the prior art to move insecure problem, in butterfly valve stroke switchgear of the present utility model, no longer three position limit switches are integrated in a switch combination unit, carry out transmission by easy intermediate transmission mechanism aging and affected by environment, and then produce insecure action and demonstration, but rotating disk 4 is set to follow the rotation of the butterfly plate 5 in butterfly valve and produces synchronous spinning, for example rotating disk 4 is directly installed on the valve rod 6 or its outrigger shaft of butterfly valve, thereby rotate with valve rod, make the rotating disk 4 can be accurately and reliably and butterfly plate 5 synchronous rotaries.Like this, the reliable in action of the utility model switch gear, is not subject to environment or structure burn-in effects.In addition, upwards direct display, and three separate separating of position limit switch, conveniently regulate, change and safeguard the week that three position limit switch intervals are arranged in rotating disk 4.In the time being installed on butterfly valve, three position limit switches more can be installed to the outside of butterfly valve housing 8, are more conducive to manual operation, maintenance.
Wherein, should make all can to produce and contact and trigger by the rotation of rotating disk 4 with three trigger units along three position limit switches of the circumferential directions of rotating disk 4, especially in the particular point of rotation of rotating disk 4, make one of them position limit switch contact with corresponding trigger unit, and other position limit switch and trigger unit do not produce mechanical interference.For this reason, as shown in Figures 2 to 4, in present embodiment, adopt the preferred trigger architecture form of one that produces triggering by mechanical type contact, this trigger architecture is simple, directly perceived and reliable, complete shut-down location triggered portion 41, fully open position trigger unit 42 and control position trigger unit 43 are all protruded from the edge radially outward of rotating disk 4, and complete shut-down position position limit switch 1, the correspondingly spaced radial setting of edge of fully open position position limit switch 2 and control position position limit switch 3 and rotating disk 4, the radially protrusion of spaced radial size and corresponding trigger unit is measure-alike, trigger by contacting making it possible to.More preferably, in the rotation process of rotating disk 4 as shown in Figures 2 to 4, for fully open position and the control position that may produce mechanical interference, be the radially protrusion length that is greater than control position trigger unit 43 by the Design of length of radially protruding of fully open position trigger unit 42.Like this, when rotating disk 4 turns to the fully open position of Fig. 3 from the complete shut-down position of Fig. 2, because the radially protrusion length of control position trigger unit 43 is short, can be without barrier by fully open position trigger unit 42 and deflect to the left side of control position trigger unit 43.Certainly, it may occur to persons skilled in the art that there is other trigger architecture, the structural types such as such as laser triggering or automatically controlled triggering.
As shown in Figure 1, because valve rod 6 is generally arranged on the central position of butterfly plate 5, making valve rod 6 rotate 90 ° can drive butterfly plate 5 to rotate 180 °, namely butterfly plate 5 rotates to fully open position from complete shut-down position, thereby in the present embodiment, along week of rotating disk 4 upwards, the interval angle between the complete shut-down location triggered portion 41 of fully open position trigger unit 42 and a side is designed to 90 °, the opposite side of fully open position trigger unit 42 arranges control position trigger unit 43; Interval angle between the complete shut-down position position limit switch 1 of fully open position position limit switch 2 and a side is 180 °, control position position limit switch 3 is arranged on the opposite side of fully open position position limit switch 2, and interval angle between control position position limit switch 3 and fully open position position limit switch 2 equals the interval angle between control position trigger unit 43 and fully open position trigger unit 42.Wherein, control aperture and be generally 80% aperture or 90% aperture, when rotating disk 4 rotates to control position, the residing control aperture of butterfly plate 5 state is 80% aperture state or 90% aperture state.In the present embodiment, described control aperture is 90% aperture, and the interval angle between control position position limit switch 3 and fully open position position limit switch 2 is 5 ° like this.
Referring to Fig. 2 to Fig. 4, rotating disk 4 rotate time, rotatable 90 ° along the counter clockwise direction shown in arrow, rotate to the fully open position shown in Fig. 3 from the complete shut-down position of Fig. 2, then return back to along clockwise direction the control position shown in Fig. 4 from the fully open position shown in Fig. 3.Position and the aperture of butterfly plate 5 are so just clearly illustrated.In addition, for ease of installation and the rotation of rotating disk 4, the center of rotating disk 4 is also provided with threaded mounting hole 44, can be screwed on the outrigger shaft of valve rod 6 or this valve rod 6 by this threaded mounting hole 44, below also will address.
On the basis of above-mentioned butterfly valve stroke switchgear, the utility model also provides a kind of hydraulic butterfly valve, and referring to Fig. 1 and Fig. 2, this hydraulic butterfly valve comprises butterfly plate 5, valve rod 6, hydraulic control system and above-mentioned butterfly valve stroke switchgear.Wherein, butterfly plate 5 is arranged on one end of valve rod 6 and rotates around this valve rod 6, and rotating disk 4 is installed on the other end of valve rod 6 or the outrigger shaft of this valve rod 6 coaxially, to keep and the synchronous rotary of butterfly plate 5; The hydraulic control system of butterfly valve comprises oil pump and oil cylinder, oil pump drives butterfly plate 5 to rotate to the rodless cavity pumps hydraulic oil of oil cylinder with supercharging control by oil-feed oil circuit, the rodless cavity of oil cylinder can also pass through oil return circuit pressure release oil return, in oil return circuit, be provided with oil drain switch valve, complete shut-down position position limit switch 1 and oil drain switch valve link to control the break-make of oil return circuit, fully open position position limit switch 2 quits work for control oil pump under triggering state, and control position position limit switch 3 for starting oil pump under triggering state.
Particularly, the hydraulic butterfly valve in present embodiment is preferably heavy hammer type butterfly valve.In the complete shut-down position shown in Fig. 2, butterfly plate 5 is closed the valve pocket of butterfly valve completely, and the hydraulic control system of butterfly valve is by oil return circuit pressure release oil return.In the time that needs are opened valve pocket by rotation butterfly plate 5, should make the rotation of valve rod 6 drive rotating disk 4 direction of arrow (counterclockwise) rotation as shown in Figure 2 simultaneously.Now, as shown in Figure 2, complete shut-down location triggered portion 41 contacts and triggers described complete shut-down position position limit switch 1, make oil drain switch valve stop up oil return circuit, in oil cylinder, progressively set up oil pressure, thereby overcome the pressure of the weight (not shown) on the piston rod that is applied to oil cylinder in heavy hammer type butterfly valve and actuate valve stem 6 and butterfly plate 5 rotate, open gradually valve pocket, after 90 °, arrive the fully open position shown in Fig. 3 until rotating disk 4 rotates counterclockwise.This wherein, control position trigger unit 43 has been passed through the radial clearance space between fully open position trigger unit 42 and rotating disk 4 without barrier, and produce and contact with control position position limit switch 3 in the counterclockwise direction, but this contact can be set as not triggering control position position limit switch 3.At the fully open position shown in Fig. 3, fully open position trigger unit 42 can trigger fully open position position limit switch 2, and oil pump is quit work; Then, because oil pump quits work, butterfly plate 5 (along clockwise direction shown in arrow in figure) under weight effect slowly turns round, until shown in Fig. 4 in controlling aperture state, and then control position trigger unit 43 triggers control position position limit switch 3, start once again oil pump, give the rodless cavity fuel feeding supercharging of oil cylinder, the aperture of butterfly plate 5 is increased once again.So just make butterfly plate 5 remain at full-gear and control normal cycle operation between aperture state.
In addition, hydraulic butterfly valve comprises housing 8, and complete shut-down position position limit switch 1, fully open position position limit switch 2 and the control position position limit switch 3 in present embodiment can more preferably all be arranged on the outside of housing.Like this, not only demonstration is more directly perceived, is more convenient for safeguarding and changing, and in butterfly valve running, also can change online easily.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition, each concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the utility model is to the explanation no longer separately of various possible compound modes.
In addition, also can carry out combination in any between various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (9)
1. a butterfly valve stroke switchgear, it is characterized in that, this device comprises complete shut-down position position limit switch (1), fully open position position limit switch (2), control position position limit switch (3) and rotating disk (4), this rotating disk (4) is set to follow the rotation of the butterfly plate (5) in butterfly valve and produces synchronous spinning, described complete shut-down position position limit switch (1), fully open position position limit switch (2) and control position position limit switch (3) are circumferentially arranged successively along described rotating disk (4), on the outward edge of described rotating disk (4), be also provided with the complete shut-down location triggered portion (41) arranging successively along circumferentially, fully open position trigger unit (42) and control position trigger unit (43), rotate to complete shut-down position at described rotating disk (4) making, when fully open position or control position, can trigger accordingly described complete shut-down position position limit switch (1), fully open position position limit switch (2) or control position position limit switch (3), wherein, when described rotating disk (4) rotates to complete shut-down position, fully open position or control position, described butterfly plate (5) is in corresponding complete shut-down state, full-gear or control aperture state.
2. butterfly valve stroke switchgear according to claim 1, it is characterized in that, described complete shut-down location triggered portion (41), fully open position trigger unit (42) and control position trigger unit (43) are protruded from the edge radially outward of described rotating disk (4), and the correspondingly spaced radial setting of described edge of described complete shut-down position position limit switch (1), fully open position position limit switch (2) and control position position limit switch (3) and described rotating disk (4).
3. butterfly valve stroke switchgear according to claim 2, is characterized in that, the radially protrusion length of described fully open position trigger unit (42) is greater than the radially protrusion length of described control position trigger unit (43).
4. butterfly valve stroke switchgear according to claim 2, it is characterized in that, along week of described rotating disk (4) upwards, interval angle between the described complete shut-down location triggered portion (41) of described fully open position trigger unit (42) and a side is 90 °, and the opposite side of described fully open position trigger unit (42) arranges described control position trigger unit (43); Interval angle between the described complete shut-down position position limit switch (1) of described fully open position position limit switch (2) and a side is 180 °, described control position position limit switch (3) is arranged on the opposite side of described fully open position position limit switch (2), and interval angle between described control position position limit switch (3) and described fully open position position limit switch (2) equals the interval angle between described control position trigger unit (43) and described fully open position trigger unit (42).
5. butterfly valve stroke switchgear according to claim 1, is characterized in that, when described rotating disk (4) rotates to described control position, the residing described control aperture state of described butterfly plate (5) is 80% aperture state or 90% aperture state.
6. butterfly valve stroke switchgear according to claim 1, is characterized in that, the center of described rotating disk (4) is provided with threaded mounting hole (44).
7. a hydraulic butterfly valve, this hydraulic butterfly valve comprises butterfly plate (5), valve rod (6) and hydraulic control system, it is characterized in that, described hydraulic butterfly valve also comprises according to the butterfly valve stroke switchgear described in any one in claim 1-6, wherein:
Described butterfly plate (5) is arranged on one end of described valve rod (6) and rotates around this valve rod (6), described rotating disk (4) is installed on the other end of described valve rod (6) or the outrigger shaft of this valve rod (6) coaxially, to keep and the synchronous rotary of described butterfly plate (5);
Described hydraulic control system comprises oil pump and oil cylinder, described oil pump drives described butterfly plate (5) to rotate to the rodless cavity pumps hydraulic oil of described oil cylinder with supercharging control by oil-feed oil circuit, the rodless cavity of described oil cylinder can also pass through oil return circuit pressure release oil return, in described oil return circuit, be provided with oil drain switch valve, described complete shut-down position position limit switch (1) and described oil drain switch valve link to control the break-make of described oil return circuit, described fully open position position limit switch (2) quits work for control described oil pump under triggering state, described control position position limit switch (3) for starting described oil pump under triggering state.
8. hydraulic butterfly valve according to claim 7, it is characterized in that, described hydraulic butterfly valve comprises housing (8), and described complete shut-down position position limit switch (1), fully open position position limit switch (2) and control position position limit switch (3) are installed in the outside of described housing (8).
9. hydraulic butterfly valve according to claim 7, is characterized in that, described hydraulic butterfly valve is heavy hammer type butterfly valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013902.4U CN203670970U (en) | 2014-01-09 | 2014-01-09 | Butterfly valve travel switch device and hydraulic control butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420013902.4U CN203670970U (en) | 2014-01-09 | 2014-01-09 | Butterfly valve travel switch device and hydraulic control butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670970U true CN203670970U (en) | 2014-06-25 |
Family
ID=50967266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420013902.4U Expired - Lifetime CN203670970U (en) | 2014-01-09 | 2014-01-09 | Butterfly valve travel switch device and hydraulic control butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670970U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892388A (en) * | 2017-04-14 | 2017-06-27 | 湖州市善琏春风湖笔厂 | Filling bottle equipment is used in a kind of prepared Chinese ink production |
| CN107631036A (en) * | 2017-11-13 | 2018-01-26 | 佛山市恒爱网络科技有限公司 | A kind of wafer type butterfly valve |
| CN109519548A (en) * | 2017-09-20 | 2019-03-26 | 广东大唐国际潮州发电有限责任公司 | Hydraulic butterfly valve |
-
2014
- 2014-01-09 CN CN201420013902.4U patent/CN203670970U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106892388A (en) * | 2017-04-14 | 2017-06-27 | 湖州市善琏春风湖笔厂 | Filling bottle equipment is used in a kind of prepared Chinese ink production |
| CN109519548A (en) * | 2017-09-20 | 2019-03-26 | 广东大唐国际潮州发电有限责任公司 | Hydraulic butterfly valve |
| CN107631036A (en) * | 2017-11-13 | 2018-01-26 | 佛山市恒爱网络科技有限公司 | A kind of wafer type butterfly valve |
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Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Patentee after: China Shenhua Energy Co.,Ltd. Patentee after: BEIJING GUOHUA POWER Co.,Ltd. Patentee after: Guoneng Yuedian Taishan Power Generation Co.,Ltd. Address before: 100011 Shenhua building, 22 West Binhe Road, Dongcheng District, Beijing Patentee before: China Shenhua Energy Co.,Ltd. Patentee before: BEIJING GUOHUA POWER Co.,Ltd. Patentee before: GUANGDONG GUOHUA YUEDIAN TAISHAN POWER GENERATION Co.,Ltd. |
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Granted publication date: 20140625 |