CN109027381A - A kind of signals security valve - Google Patents

A kind of signals security valve Download PDF

Info

Publication number
CN109027381A
CN109027381A CN201811080431.8A CN201811080431A CN109027381A CN 109027381 A CN109027381 A CN 109027381A CN 201811080431 A CN201811080431 A CN 201811080431A CN 109027381 A CN109027381 A CN 109027381A
Authority
CN
China
Prior art keywords
valve
shell
signals security
block
handle
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811080431.8A
Other languages
Chinese (zh)
Inventor
许永龙
仇超远
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Salt High Valve Manufacturing Co Ltd
Original Assignee
Jiangsu Salt High Valve Manufacturing Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangsu Salt High Valve Manufacturing Co Ltd filed Critical Jiangsu Salt High Valve Manufacturing Co Ltd
Priority to CN201811080431.8A priority Critical patent/CN109027381A/en
Publication of CN109027381A publication Critical patent/CN109027381A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/02Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00Actuating devices; Operating means; Releasing devices
    • F16K31/44Mechanical actuating means
    • F16K31/53Mechanical actuating means with toothed gearing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K37/00Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0025Electrical or magnetic means

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanically-Actuated Valves (AREA)

Abstract

The present invention relates to a kind of signals security valves, including valve body, the valve body is provided with braced frame, driving assembly is provided in braced frame, the driving component and valve body are cooperatively connected, the valve body includes valve shell, valve rod and handle, described valve rod one end is connected with handle, the other end is removably provided with filling shell, it fills to seal between shell and valve shell and cooperate, the bottom end of filling shell is connected with sealing block, and driving assembly can automatically rotate the position of sealing block, convenient for users to use.

Description

A kind of signals security valve
Technical field
The present invention relates to power station valve equipment technical field, in particular to a kind of signals security valves.
Background technique
With the continuous development of society, people's lives are increasingly modernized, also increasing for the demand of electric power, In the fields such as power station, there are a large amount of carbonated drink conveyance conduits, and also are provided with a large amount of valve, and most valves are in high temperature height The working environment of pressure, therefore, the sealing surface at valve shutdown mostly use hard alloy overlay welding, then, machined grinding Etc. techniques be fabricated.Since valve aperture is small, and overlaying surface is deep, is not easy to guarantee surfacing quality, be easy to cause built-up welding The defects of crackle of layer, slag inclusion, difficulty is caused to the processing grinding in later period, the workload reprocessed increases, existing pressing sleeve formula On valve, packing cavity is often an integral structure with valve, and the valve of this structure, inner filler service life are not often grown, Need regular replacement, moreover, in replacement, operating procedure also tend to it is relatively complicated, in addition, power station valve in the prior art Door is mostly to be integrally formed, once some position is damaged, then needs replacing entire valve, in addition, its leakproofness is poor, has Some valve long-time uses after be easy to happen leakage, to will affect the normal use of valve;
Number of patent application 201420028459.9 discloses a kind of power station valve, and dismountable valve seat is arranged, facilitates use The maintenance at family, still, some pipe diameters for having are different, then need replacing different valves, thus will increase use at This, in addition, the opening that some valves having cannot grasp valve internal well in liquid or gas transmission process is big Small, to will affect transfer efficiency, the present invention proposes a kind of new solution in view of the above problems in transmission process.
Summary of the invention
It is to be solved by this invention be power station valve equipment in the prior art be inconvenient to dismantle, leakproofness difference and function The problems such as single, provides a kind of signals security valve in view of the above problems, has solved problem above.
The technical scheme to solve the above technical problems is that a kind of signals security valve, including valve body, the valve Door body is provided with braced frame, and driving assembly is provided in braced frame, and the driving component and valve body are cooperatively connected, The valve body includes valve shell, valve rod and handle, and described valve rod one end is connected with handle, and the other end is removably arranged There is filling shell, fills and seal cooperation between shell and valve shell, the bottom end for filling shell is connected with sealing block, the valve body Shell bottom end is provided with inlet and liquid outlet, is provided with conveying channel between inlet and liquid outlet, on the valve shell It is provided with the accommodating chamber being connected with conveying channel, the valve rod and filling shell are equipped with accommodating chamber, the valve rod With valve shell is mobilizable links together, be removably provided with receiving block on the feeding pipe, the sealing block with Receiving block is cooperatively connected, and is provided with fastener hole in receiving block, fastening block corresponding with fastener hole is provided on sealing block, this is tight Gu the bottom end of block is provided with gasket, the handle is rotatably coupled to together with driving assembly, the inlet and out liquid Adapting pipe is removably provided on mouth respectively.
Based on the above technical solution, the present invention can also be improved as follows.
In any of the above-described scheme preferably, the driving component includes driving motor and master gear, master gear and is driven The motor shaft of dynamic motor is connected, the handle and the ratcheting connection of master gear.
In any of the above-described scheme preferably, controller is additionally provided in the braced frame, in the valve shell Portion is provided with pressure sensor, and the pressure sensor and controller are electrically connected, and the driving motor and controller are electrically connected.
In any of the above-described scheme preferably, the filling shell is to be threadedly coupled with valve rod, outside the filling shell Rubber pad is provided on wall.
In any of the above-described scheme preferably, corresponded to each other respectively in the receiving block and sealing block be provided with it is multiple tight Solid hole and fastening block.
In any of the above-described scheme preferably, it is provided with hold-down bolt on the valve rod, the hold-down bolt and rubber pad It is equipped with.
In any of the above-described scheme preferably, the receiving block is integrally formed with valve shell.
In any of the above-described scheme preferably, the receiving block welds together with valve shell.
In any of the above-described scheme preferably, one end of the adapting pipe is provided with the first opening, other end setting There is the second opening, the diameter of the first opening is not identical as the diameter of the second opening.
In any of the above-described scheme preferably, the surface of the valve shell is provided with erosion resistant coating.
In any of the above-described scheme preferably, the erosion resistant coating is skin of paint.
The beneficial effects of the present invention are: the present invention can automatically rotate the position of sealing block by driving motor, It is convenient for users to use, in addition, the design of pressure sensor and controller can be very good to the stream inside valve shell Ram compression power is detected, and so as to control the rotation position of sealing block well, prevents its appearance from causing since pressure is excessive Sealing block damage or the case where to outward leakage, the matching design of fastening block and fastener hole makes sealing block and receiving block even Better tightness when connecing, prevents liquid from revealing, and filling shell is removably attachable to together, facilitate to it with valve rod It is replaced, improves the practicality, the design for filling rubber pad and hold-down bolt on shell improves the close of filling shell Feng Xing.
Detailed description of the invention
Fig. 1 is the overall structure diagram of a preferred embodiment of signals security valve according to the invention;
Fig. 2 is the valve shell of a preferred embodiment of signals security valve according to the invention and the cooperation knot of adapting pipe Structure schematic diagram;
Fig. 3 is the structural schematic diagram of the receiving block of a preferred embodiment of signals security valve according to the invention;
Fig. 4 is the mating die of a preferred embodiment remote control center and controller of signals security valve according to the invention Block figure;
In attached drawing, parts list represented by the reference numerals are as follows:
1, valve body, 2, braced frame, 3, valve shell, 4, valve rod, 5, handle, 6, filling shell, 7, sealing block, 8, Conveying channel, 9, receiving block, 10, fastener hole, 11, fastening block, 12, gasket, 13, adapting pipe, 14, driving motor, 15, master Gear, 16, controller, 17, pressure sensor, 18, rubber pad, 19, hold-down bolt, 20, temperature sensor, 21, wireless signal Transfer assembly, 22, remote control center.
Specific embodiment
The principle and features of the present invention will be described below with reference to the accompanying drawings, and the given examples are served only to explain the present invention, and It is non-to be used to limit the scope of the invention.
As shown in Figures 1 to 4, a kind of signals security valve, including valve body 1, the valve body 1 are provided with braced frame 2, driving assembly is provided in braced frame 2, the driving component and valve body 1 are cooperatively connected, and the valve body 1 includes Valve shell 3, valve rod 4 and handle 5, described 4 one end of valve rod are connected with handle 5, and the other end is removably provided with filling shell 6, it fills and seals cooperation between shell 6 and valve shell 3, the bottom end of filling shell 6 is connected with sealing block 7, the valve shell 3 Bottom end is provided with inlet and liquid outlet, and conveying channel 8 is provided between inlet and liquid outlet, is set on the valve shell 3 It is equipped with the accommodating chamber being connected with conveying channel 8, the valve rod 4 and filling shell 6 are equipped with accommodating chamber, the valve rod 4 with valve shell 3 is mobilizable links together, receiving block 9, the sealing are removably provided on the feeding pipe 8 Block 7 and receiving block 9 are cooperatively connected, and are provided with fastener hole 10 in receiving block 9, are provided on sealing block 7 corresponding with fastener hole 10 Fastening block 11, the bottom end of the fastening block 11 is provided with gasket 12, and the handle 5 is rotatably coupled to one with driving assembly It rises, is removably provided with adapting pipe 13 on the inlet and liquid outlet respectively.
As shown in Figure 1, the driving component includes driving motor 14 and master gear in further specific embodiment 15, master gear 15 is connected with the motor shaft of driving motor 14, and the handle 5 and the ratcheting connection of master gear 15 pass through driving electricity Machine 14 can be very good to rotate handle 5, so as to automatically adjust the position of sealing block 7, further control liquid or The flowing of person's gas is additionally provided with controller 16 in the braced frame 2, and the valve shell 3 is internally provided with pressure sensing Device 17, the pressure sensor 17 and controller 16 are electrically connected, and the driving motor 14 is electrically connected with controller 16, pass through pressure Force snesor 17 and controller 16 can be very good the flowing pressure of detection valve inner liquid or gas, can be according to reality Situation is changed the rotational angle of sealing block 7.
As illustrated in fig. 1 and 2, in further specific embodiment, the filling shell 6 is to be threadedly coupled with valve rod 4, should It fills and is provided with rubber pad 18 on the outer wall of shell 6, the design of rubber pad 18 improves the leakproofness of filling shell, prevents liquid Or gas leakage, hold-down bolt 19 is provided on the valve rod 4, which is equipped with rubber pad 18, passes through Hold-down bolt 19 can be very good to squeeze rubber pad 18, improve the leakproofness of rubber pad 18, right when using hold-down bolt 19 It is rotated, and hold-down bolt is connect with threaded stem.
As shown in figs. 1 and 3, mutually right respectively in the receiving block 9 and sealing block 7 in further specific embodiment It should be provided with multiple fastener holes 10 and fastening block 11, the design of multiple fastener holes 10 and fastening block 11 can be very good to prevent liquid Or there is a situation where reveal for gas.
As shown in Figure 1, in further specific embodiment, the receiving block 9 be integrally formed with valve shell 3 or The receiving block 9 welds together with valve shell 3, so that it is stronger to connect receiving block 9 with valve shell 3.
As shown in Fig. 2, one end of the adapting pipe 13 is provided with the first opening in further specific embodiment, The other end is provided with the second opening, and the diameter of the first opening is not identical as the diameter of the second opening, to make adapting pipe 13 can With the extraneous pipeline of application and different-diameter, not needing to replace whole valve can normal use.
As shown in Figure 1, the surface of the valve shell 3 is provided with erosion resistant coating in further specific embodiment, so that Valve shell will not be corroded, and extend its service life, and the erosion resistant coating is skin of paint.
Working principle:
Embodiment 1: when in use, the external AC power source of driving motor 14, driving motor 14 drives master gear 15 to rotate, main Gear 15 is rotated with fixed handle 5, and since it is ratcheting connection, highly stable during rotation, handle 5 is rotated with ovable valve stem 4, Valve rod 4 drives sealing block 7 to rotate, and liquid or gas enter in feeding pipe 8 from inlet, is then discharged by liquid outlet, In addition, before the use, user can be chosen whether according to the thickness of extraneous pipeline using adapting pipe 13, adapting pipe 13 with Extraneous pipeline and valve shell 3 be threadedly coupled, thus allow a valve shell 3 apply from different extraneous pipelines, Improve the practicality, liquid or gas during transportation pressure sensor 17 to inside valve shell 3 liquid or The pressure of gas flow rate is in advance configured pressure sensor 17 and controller 16, and present invention preferably uses single-chip microcontroller controls Device processed, when reaching pressure value, is solved so as to preferably control pressure value by adjusting the position of sealing block 7 Certainly pressure flow velocity problem can drive master gear 15 by control driving motor 14, so as to adjust the position of sealing block 7.
Embodiment 2: on the basis of embodiment 1, as shown in figure 4, being additionally provided with temperature biography in braced frame 2 of the invention Sensor 20, the temperature sensor 20 and controller 16 are electrically connected, and controller 16 is by wireless signal transfer assembly 21 and remotely Control centre 22 is connected, and staff can control signals security valve by remote control center 22, wireless signal Transfer assembly 21 by WLAN carry out information transmission, wireless signal transfer assembly 21 include wireless signal transmitter and Wireless signal receiver, wireless signal transmitter are mounted in braced frame 2 and are connected with controller 16, wireless signal receiver It is mounted on remote control center, signal is received and judged by remote control center 22, and controller 16 is done Corresponding control instruction out, controls staff remotely.
In the description of the present invention, it is to be understood that, term " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" "inner", "outside", " up time The orientation or positional relationship of the instructions such as needle ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be orientation based on the figure or Positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device or element of indication or suggestion meaning must There must be specific orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc. Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral;It can be mechanical connect It connects, is also possible to be electrically connected;It can be directly connected, can also can be in two elements indirectly connected through an intermediary The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below " One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned Embodiment is changed, modifies, replacement and variant.

Claims (10)

1. a kind of signals security valve, including valve body (1), which is characterized in that the valve body (1) is provided with braced frame (2), driving assembly is provided in braced frame (2), the driving component and valve body (1) are cooperatively connected, the valve sheet Body (1) includes valve shell (3), valve rod (4) and handle (5), and described valve rod (4) one end is connected with handle (5), and the other end is removable That unloads is provided with filling shell (6), fills and seals cooperation between shell (6) and valve shell (3), fills the bottom end of shell (6) It is connected with sealing block (7), valve shell (3) bottom end is provided with inlet and liquid outlet, sets between inlet and liquid outlet It is equipped with conveying channel (8), is provided with the accommodating chamber being connected with conveying channel (8), the valve rod on the valve shell (3) (4) and filling shell (6) is equipped with accommodating chamber, the valve rod (4) and valve shell (3) are mobilizable is connected to one It rises, is removably provided with receiving block (9) on the feeding pipe (8), the sealing block (7) and receiving block (9) are cooperatively connected, It is provided in receiving block (9) fastener hole (10), fastening block (11) corresponding with fastener hole (10) is provided on sealing block (7), The bottom end of the fastening block (11) is provided with gasket (12), and the handle (5) is rotatably coupled to together with driving assembly, institute It states and is removably provided with adapting pipe (13) on inlet and liquid outlet respectively.
2. signals security valve according to claim 1, which is characterized in that the driving component include driving motor (14) and Master gear (15), master gear (15) are connected with the motor shaft of driving motor (14), and the handle (5) and master gear (15) are ratcheting Connection.
3. signals security valve according to claim 2, which is characterized in that be additionally provided with control on the braced frame (2) Device (16), the valve shell (3) are internally provided with pressure sensor (17), the pressure sensor (17) and controller (16) electricity Property connection, the driving motor (14) and controller (16) are electrically connected.
4. signals security valve according to claim 1, which is characterized in that the filling shell (6) is screw thread with valve rod (4) It connects, is provided with rubber pad (18) on the outer wall of the filling shell (6).
5. signals security valve according to claim 4, which is characterized in that be provided with hold-down bolt on the valve rod (4) (19), which is equipped with rubber pad (18).
6. signals security valve according to claim 1-5, which is characterized in that the receiving block (9) and sealing block (7) it is corresponded to each other respectively on and is provided with multiple fastener holes (10) and fastening block (11).
7. signals security valve according to claim 1, which is characterized in that the receiving block (9) is one with valve shell (3) It is body formed.
8. signals security valve according to claim 1, which is characterized in that the receiving block (9) and valve shell (3) are welded Together.
9. signals security valve according to claim 1, which is characterized in that one end of the adapting pipe (13) is provided with One opening, the other end are provided with the second opening, and the diameter of the first opening is not identical as the diameter of the second opening.
10. signals security valve according to claim 1, which is characterized in that the surface of the valve shell (3) is provided with anti- Rotten layer.
CN201811080431.8A 2018-09-17 2018-09-17 A kind of signals security valve Pending CN109027381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811080431.8A CN109027381A (en) 2018-09-17 2018-09-17 A kind of signals security valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811080431.8A CN109027381A (en) 2018-09-17 2018-09-17 A kind of signals security valve

Publications (1)

Publication Number Publication Date
CN109027381A true CN109027381A (en) 2018-12-18

Family

ID=64621912

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811080431.8A Pending CN109027381A (en) 2018-09-17 2018-09-17 A kind of signals security valve

Country Status (1)

Country Link
CN (1) CN109027381A (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202252015U (en) * 2011-09-27 2012-05-30 天津市卡尔斯阀门有限公司 Novel electric regulating valve
CN202660007U (en) * 2012-07-17 2013-01-09 李仲伦 Automatic fuel gas security ball valve
CN106091698A (en) * 2016-06-23 2016-11-09 南通普瑞特机械有限公司 A kind of calcining kiln flue door
CN207421348U (en) * 2017-11-03 2018-05-29 高特控股集团有限公司 A kind of valve body of electric drive opening and closing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202252015U (en) * 2011-09-27 2012-05-30 天津市卡尔斯阀门有限公司 Novel electric regulating valve
CN202660007U (en) * 2012-07-17 2013-01-09 李仲伦 Automatic fuel gas security ball valve
CN106091698A (en) * 2016-06-23 2016-11-09 南通普瑞特机械有限公司 A kind of calcining kiln flue door
CN207421348U (en) * 2017-11-03 2018-05-29 高特控股集团有限公司 A kind of valve body of electric drive opening and closing

Similar Documents

Publication Publication Date Title
CN208057998U (en) A kind of high temperature metal sealing plug valve
CN201944408U (en) Special stop valve for chlorine gas
CN109027381A (en) A kind of signals security valve
CN209894285U (en) Detachable single-flange liquid level transmitter
CN212804339U (en) Sealed effectual ball valve body for pipeline
CN212361161U (en) End face sealing structure for rotary compensator and rotary compensator
CN108591484A (en) A kind of multi-sealed bellows instrument valve
CN212361163U (en) Rotary compensator end face sealing structure and rotary compensator
CN212273346U (en) End face sealing structure for rotary compensator and rotary compensator
CN207357112U (en) A kind of reaction unit for being used to produce anode material of lithium battery
CN206792867U (en) A kind of rotatable fire hydrant of heavy caliber
CN2472014Y (en) Stop valve
CN207012844U (en) The stirring motor sealing structure of emulsion paint agitator tank
CN220204848U (en) Rotary-open ceramic valve for on-line leakage detection
CN206257291U (en) A kind of heavy caliber vacuum butterfly valve
CN207864628U (en) A kind of laboratory air participates in the stirring axle envelope of reaction unit
CN112392426A (en) Oil gas leakage protection device and oil gas leakage protection system with same
CN2563373Y (en) Conveniently dismantling sand and mud proof two way sealed three eccentric butterfly valve
CN205806527U (en) A kind of be applied to pressure pan body in turn over the material inlet valve of formula
CN212745073U (en) Gate valve with quick connector
CN213512191U (en) High-temperature ball valve
CN210860039U (en) Valve special for fluorine-lined high-risk medium
CN206386298U (en) A kind of integrated mechanical sealing device
CN109210266A (en) A kind of oil equipment control valve for preventing from arbitrarily opening
CN219639499U (en) Power station hydrophobic ball valve convenient to assembly

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20181218