CN111042764B - Emergency breaking device for natural gas wellhead adjustment - Google Patents
Emergency breaking device for natural gas wellhead adjustment Download PDFInfo
- Publication number
- CN111042764B CN111042764B CN201911252320.5A CN201911252320A CN111042764B CN 111042764 B CN111042764 B CN 111042764B CN 201911252320 A CN201911252320 A CN 201911252320A CN 111042764 B CN111042764 B CN 111042764B
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- gear
- natural gas
- manual
- 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.)
- Active
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 239000003345 natural gas Substances 0.000 title claims abstract description 39
- 230000007246 mechanism Effects 0.000 claims abstract description 164
- 230000033001 locomotion Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000007704 transition Effects 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 26
- 238000001514 detection method Methods 0.000 claims description 21
- 238000007789 sealing Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000012369 In process control Methods 0.000 claims description 2
- 238000010965 in-process control Methods 0.000 claims description 2
- 239000002343 natural gas well Substances 0.000 abstract description 13
- 230000008878 coupling Effects 0.000 abstract description 7
- 238000010168 coupling process Methods 0.000 abstract description 7
- 238000005859 coupling reaction Methods 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 6
- 239000013064 chemical raw material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B34/00—Valve arrangements for boreholes or wells
- E21B34/02—Valve arrangements for boreholes or wells in well heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
- F16K1/38—Valve members of conical shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
- F16K1/427—Attachment of the seat to the housing by one or more additional fixing elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
- F16K27/0254—Construction of housing; Use of materials therefor of lift valves with conical shaped valve members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/047—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/05—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor specially adapted for operating hand-operated valves or for combined motor and hand operation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/53—Mechanical actuating means with toothed gearing
- F16K31/54—Mechanical actuating means with toothed gearing with pinion and rack
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0066—Hydraulic or pneumatic means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The application provides a device is suddenly cut off in natural gas well head regulation, including valve body, hoist mechanism, coupling mechanism and adjustment mechanism, the valve body passes through coupling mechanism and is connected with hoist mechanism and adjustment mechanism respectively be equipped with case and valve rod in the valve body, hoist mechanism makes through manual or electronic mode the case is controlled at the valve body internal motion opening or closing of valve body, adjustment mechanism makes through manual or electronic mode thereby the valve rod is flowed through in the control of valve body internal motion the flow of the natural gas of valve body. This application can be with manual or electronic mode control opening or closing of case to close the valve body under emergency, guaranteed the safety of natural gas well head, can flow through with manual or electronic mode control through setting up adjustment mechanism the flow of the natural gas of valve body makes the pressure of natural gas well head can be controlled in safety range, has improved the security of natural gas exploitation in-process.
Description
Technical Field
The application relates to the technical field of natural gas exploitation, in particular to a natural gas well mouth adjusting quick-break device.
Background
Natural gas is a combustible gas stored in the deep underground, is a clean, convenient and efficient fuel, is also an important chemical raw material, and has higher economic value. When non-high-quality natural gas is exploited, the pressure of a natural gas well mouth is unstable, once the pressure of the natural gas well mouth is out of a reasonable range or in a dangerous range, if the natural gas well mouth cannot be closed in time or the pressure of the natural gas well mouth is adjusted to be within the reasonable range, serious potential safety hazards exist, and property loss or casualties are caused.
Disclosure of Invention
The utility model provides a natural gas well head is adjusted and is suddenly cut-off device is provided in aim at overcoming prior art's defect.
In order to achieve the purpose, the following technical scheme is adopted in the application:
the utility model provides a natural gas well head is adjusted and is suddenly cut off device, includes valve body 1, hoist mechanism 3, coupling mechanism 4 and adjustment mechanism 5, valve body 1 is connected with hoist mechanism 3 and adjustment mechanism 5 respectively through coupling mechanism 4 be equipped with case 18 and valve rod 14 in the valve body 1, thereby hoist mechanism 3 makes through manual or electronic mode case 18 moves in valve body 1 control opening or closing of valve body 1, thereby adjustment mechanism 5 makes through manual or electronic mode valve rod 14 moves in valve body 1 and control the flow through the flow of the natural gas of valve body 1.
Optionally, the valve body 1 includes a valve body 11, a circulation pipeline 12 for circulating natural gas is disposed on the valve body 11, a valve cavity 13 communicated with the circulation pipeline 12 is disposed in the middle of the valve body 11, the valve rod 14 is located in the valve cavity 13 and moves up and down, valve seats 17 are disposed on two sides of the valve rod 14, and the valve seats 17 are installed in the valve body 1 through shaft holes in a matching manner and sealed with the valve rod 14.
Optionally, the valve rod 14's outside cover is equipped with valve barrel 15, valve barrel 15's one end with the valve cavity 13 corresponds the setting, valve barrel 15's the other end pass through spring holder 16 with disk seat 17 looks butt be equipped with the discharge orifice on the valve barrel 15, the natural gas passes through the entry entering of circulation pipeline 12 in the valve body 1, in the discharge orifice entering valve cavity 13 on the rethread valve barrel 15 and with the case 18 forms the annular space, the valve rod 14 is in the through-flow area of the annular space of the in-process control valve barrel 15 of the up-and-down motion in the valve cavity 13 and case 18.
Optionally, a limiting sleeve 42 is installed at an end of the valve core 18, the limiting sleeve 42 is disposed corresponding to the limiting member 41 at the end of the valve cavity 13, the valve core 18 drives the limiting sleeve 42 to move up and down when the lifting mechanism 3 manually or electrically moves the valve core 18 in the valve body 1, when the limiting sleeve 42 is located at the top end of the valve cavity 13, the valve body 1 is opened, and when the limiting sleeve 42 is located at the bottom end of the valve cavity 13, the valve body 1 is closed.
Optionally, the connecting mechanism 4 includes a connecting gear 43, a sealing seat 44, a connecting rod 45 and a guide shaft 46, the sealing seat 44 is mounted on the valve body 1 and connected to the lifting mechanism 3, the connecting gear 43 is sleeved on the guide shaft 46 and connected to the adjusting mechanism 5, one end of the connecting rod 45 is connected to the guide shaft 46 so that the connecting rod 45 moves up and down along the guide shaft 46, and the other end of the connecting rod 45 is connected to the valve rod 14 so as to control the movement of the valve rod 14.
Optionally, the lifting mechanism 3 includes a gear box 31, a first clutch 32, a gear transmission mechanism, an electric driving mechanism and a manual driving mechanism are installed in the gear box 31, the electric driving mechanism and the manual driving mechanism are respectively connected to the gear transmission mechanism, and respectively control the gear transmission mechanism to operate in an electric or manual manner, the gear transmission mechanism is connected to the valve element 18 to control the opening and closing of the valve body 1, and the first clutch 32 is disposed corresponding to the electric driving mechanism and the manual driving mechanism.
Optionally, the gear transmission mechanism includes a rack 33, a rack gear 34 and a first transition gear 35, one side of the first transition gear 35 is in transmission connection with the electric drive mechanism and the manual drive mechanism, the other side of the first transition gear 35 is engaged with one end of the rack gear 34, the other end of the rack gear 34 is engaged with the rack 33, and the rack 33 is connected with the valve element 18.
Optionally, the electric driving mechanism includes a first electric motor 71 and a clutch gear 36, the first electric motor 71 is in driving connection with the clutch gear 36, and in the energized state, the clutch gear 36 is engaged with the first transition gear 35 of the gear transmission mechanism under the action of the first clutch 32.
Optionally, the manual driving mechanism includes a manual driving gear 37, a handle 38 and a rotating rod 39, the handle 38 is folded and installed at one end of the rotating rod 39, the other end of the rotating rod 39 is passed through the first clutch 32 and the manual driving gear 37 are connected in a shifting fork manner, and the manual driving gear 37 is meshed with the first transition gear 35 of the gear transmission mechanism.
Optionally, the adjusting mechanism 5 includes a second clutch 54, a driving shaft 55 and a second transition gear 57, two ends of the driving shaft 55 are respectively connected with the handwheel 51 and the second motor 72, a manual spline 52, a reversing spline 53, an adjusting gear 56 and a limiting shaft sleeve 58 are sequentially sleeved between the handwheel 51 and the second motor 72, the second clutch 54 is arranged corresponding to the reversing spline 53, and two sides of the second transition gear 57 are respectively engaged with the adjusting gear 56 and the connecting gear 43 of the connecting mechanism 4.
Optionally, the valve further comprises an executing mechanism 2 and a detecting mechanism 6, the detecting mechanism 6 is respectively connected with the valve body 1 and the executing mechanism 2, the executing mechanism 2 is in transmission connection with the valve core 18, and the detecting mechanism 6 detects the pressure in the valve body 1 and enables the executing mechanism 2 to control the valve core 18 to move in the valve body 1 according to the pressure, so as to open or close the valve body 1.
Optionally, the executing mechanism 2 includes a balance plate 21, a limit switch 22 and a reset mechanism 23, the limit switch 22 is installed in the executing mechanism 1 through a rotating shaft 27, an end of the balance plate 21 abuts against the limit switch 22, the balance plate 21 and the rotating shaft 27 are located on the same horizontal plane and are balanced through a spring, the limit switch 22 is triggered when the balance plate 21 loses balance, the limit switch 22 rotates clockwise so as to control the valve element 18 to move through the rotating shaft 27 to close the valve body 1, and the reset mechanism 23 and the limit switch 22 are correspondingly arranged so that the limit switch 22 can reset and rotate, so that the limit switch 22 rotates counterclockwise so as to control the valve element 18 to move to open the valve body 1.
Optionally, the executing mechanism 2 further includes an upper tilting plate 24, a lower tilting plate 25, an indication plate 26 and a third motor 73, the limit switch 22 triggers the upper tilting plate 24 to enable the third motor 73 to rotate forward under the condition of counterclockwise rotation, the limit switch 22 triggers the lower tilting plate 25 to enable the third motor 73 to rotate backward under the condition of reset rotation, and the indication plate 26 and the reset mechanism 23 are correspondingly disposed.
Optionally, the detection mechanism 6 includes a pressure detection end 61, a pressure gauge 62 and a pressure sensor 63, the pressure detection end 61 is installed in the valve body 1, the pressure gauge 62 is respectively connected with the pressure detection end 61 and the pressure sensor 63, and the pressure sensor 63 is connected with the balance plate 21 of the execution mechanism 2.
The utility model provides a gas well head is adjusted and is suddenly cut off device can be controlled with manual or electronic mode through setting up hoist mechanism the opening or closing of case to close the valve body under emergency, guaranteed the safety of gas well head, can control the flow through with manual or electronic mode through setting up adjustment mechanism the flow of the natural gas of valve body makes the pressure of gas well head can control in safety range, has improved the security of natural gas exploitation in-process.
Drawings
FIG. 1 is a schematic overall structure diagram of a natural gas wellhead adjustment quick-break device according to an embodiment of the application;
FIG. 2 is another schematic overall structure diagram of a natural gas wellhead adjustment quick-break device according to an embodiment of the application;
FIG. 3 is a schematic structural view of a valve body according to an embodiment of the present application;
FIG. 4 is a schematic structural view of a lifting mechanism and a coupling mechanism of an embodiment of the present application;
FIG. 5 is a schematic structural diagram of an electric drive mechanism according to an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a manual drive mechanism according to an embodiment of the present application;
FIG. 7 is a schematic structural diagram of an adjustment mechanism of an embodiment of the present application;
fig. 8 is a schematic structural diagram of an actuator and a detection mechanism according to an embodiment of the present application.
Reference numerals
1-valve body, 11-valve body, 12-air flow channel, 13-valve cavity, 14-valve rod, 15-valve sleeve, 16-spring seat, 17-valve seat, 18-valve core, 2-actuating mechanism, 21-balance plate, 22-limit switch, 23-reset mechanism, 24-upward warping plate, 25-downward warping plate, 26-indicating plate, 27-rotating shaft, 3-lifting mechanism, 31-gear box, 32-first clutch, 33-rack, 34-rack gear, 35-first transition gear, 36-clutch gear, 37-manual driving gear, 38-handle, 39-rotating rod, 4-connecting mechanism, 41-limiting piece, 42-limiting sleeve, 43-connecting gear, 44-sealing seat, 45-connecting rod, 46-guide shaft, 5-adjusting mechanism, 51-hand wheel, 52-manual spline, 53-reversing spline, 54-second clutch, 55-driving shaft, 56-adjusting gear, 57-second transition gear, 58-limit shaft sleeve, 6-detecting mechanism, 61-pressure detecting end, 62-pressure gauge, 63-pressure sensor, 71-first motor, 72-second motor and 73-third motor.
Detailed Description
The following description of specific embodiments of the present application refers to the accompanying drawings.
In this document, "upper", "lower", "front", "rear", "left", "right", and the like are used only to indicate relative positional relationships between relevant portions, and do not limit absolute positions of the relevant portions.
In this document, "first", "second", and the like are used only for distinguishing one from another, and do not indicate the degree and order of importance, the premise that each other exists, and the like.
In this context, "equal", "same", etc. are not strictly mathematical and/or geometric limitations, but also include tolerances as would be understood by a person skilled in the art and allowed for manufacturing or use, etc.
Unless otherwise indicated, numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges subsumed therein.
The application provides a device is suddenly cut off in natural gas well head regulation, as shown in fig. 1 and fig. 2, including valve body 1, hoist mechanism 3, coupling mechanism 4 and adjustment mechanism 5, valve body 1 is connected with hoist mechanism 3 and adjustment mechanism 5 respectively through coupling mechanism 4 be equipped with case 18 and valve rod 14 in the valve body 1, thereby hoist mechanism 3 makes through manual or electronic mode case 18 moves in valve body 1 control opening or closing of valve body 1, adjustment mechanism 5 makes through manual or electronic mode valve rod 14 moves in valve body 1 the control flow through the flow of the natural gas of valve body 1.
The utility model provides a gas well head is adjusted and is suddenly cut off device can be controlled with manual or electronic mode through setting up hoist mechanism 3 the opening or closing of case 18 to close valve body 1 under emergency, guaranteed the safety of gas well head, can control the flow through with manual or electronic mode through setting up adjustment mechanism 5 the flow of the natural gas of valve body 1 for the pressure of gas well head can be controlled in safety range, has improved the security among the natural gas exploitation process.
In one embodiment of the present application, as shown in fig. 3, the valve body 1 includes a valve body 11, a flow pipe 12 for flowing natural gas is provided on the valve body 11, a valve cavity 13 communicating with the flow pipe 12 is provided in the middle of the valve body 11, and the valve rod 14 is located in the valve cavity 13 and moves up and down; valve seats 17 are arranged on two sides of the valve rod 14, and the valve seats 17 are installed in the valve body 1 in a matched mode through shaft holes and are sealed with the valve rod 14; a valve sleeve 15 is sleeved outside the valve rod 14, one end of the valve sleeve 15 is arranged corresponding to the valve cavity 13, the other end of the valve sleeve 15 is abutted against the valve seat 17 through a spring seat 16, a flow hole is arranged on the valve sleeve 15, natural gas enters the valve body 1 through the inlet of the flow pipeline 12 and then enters the valve cavity 13 through the flow hole on the valve sleeve 15 to form an annulus with the valve core 18, the valve stem 14 controls the flow area of the annulus between the valve sleeve 15 and the valve spool 18 during the up and down movement in the valve chamber 13, thereby realizing the control of the flow rate of the natural gas flowing through the valve body 1, the valve seat 17 is tightly jointed with the valve body 1 to realize the sealing through the pressure from the valve sleeve 15, and the secondary sealing is realized between the valve seat 17 and the valve sleeve 15 and the spring seat 16 through soft sealing contact, a spring is mounted on the spring seat 16 so that an elastic connection is achieved between the valve sleeve 15 and the valve seat 17.
Optionally, a thread is disposed at one end of the valve rod 14, the valve rod 14 can move up and down in the valve cavity 13 through the thread, an overflow channel for increasing an annular overflow area of the valve sleeve 15 and the valve core 18 is disposed at the other end of the valve rod 14, and an inclined plane (taper) for adjusting the flow rate and flow velocity of the natural gas flowing through the valve body 1 is further disposed, so as to adjust the outlet pressure.
Optionally, a positioning step is arranged at the bottom of the valve sleeve 15, and a sealing ring is arranged on the positioning step.
In an embodiment of the present application, as shown in fig. 4, a limiting sleeve 42 is installed at an end of the valve core 18, the limiting sleeve 42 is disposed corresponding to a limiting member 41 located at an end of the valve cavity 13, in a process that the lifting mechanism 3 manually or electrically moves the valve core 18 in the valve body 1, the valve core 18 drives the limiting sleeve 42 to move up and down, when the limiting sleeve 42 is located at a top end of the valve cavity 13, the valve body 1 is opened, and when the limiting sleeve 42 is located at a bottom end of the valve cavity 13, the valve body 1 is closed.
In one embodiment of the present application, as shown in fig. 4, the connecting mechanism 4 includes a connecting gear 43, a seal seat 44, a connecting rod 45 and a guide shaft 46, the seal seat 44 is mounted on the valve body 1 and connected with the lifting mechanism 3, the connecting gear 43 is sleeved on the guide shaft 46 and connected with the adjusting mechanism 5, one end of the connecting rod 45 is connected with the guide shaft 46 so that the connecting rod 45 moves up and down along the guide shaft 46, and the other end of the connecting rod 45 is connected with the valve rod 14 so as to control the movement of the valve rod 14.
In an embodiment of the present application, as shown in fig. 4 to 6, the lifting mechanism 3 includes a gear box 31, a first clutch 32, a gear transmission mechanism, an electric driving mechanism and a manual driving mechanism are installed in the gear box 31, the electric driving mechanism and the manual driving mechanism are respectively connected to the gear transmission mechanism, the gear transmission mechanism is controlled to operate in an electric or manual mode, the gear transmission mechanism is connected to the valve element 18 for controlling the valve body 1 to open and close, and the first clutch 32 is arranged corresponding to the electric driving mechanism and the manual driving mechanism for switching between electric mode and manual mode.
In the above embodiment, the gear transmission mechanism includes a rack 33, a rack gear 34 and a first transition gear 35, one side of the first transition gear 35 is connected to the electric driving mechanism and the manual driving mechanism for obtaining power, the other side of the first transition gear 35 is engaged with one end of the rack gear 34, the other end of the rack gear 34 is engaged with the rack 33, the rack 33 is connected to the valve element 18, that is, the first transition gear 35 can drive the valve element 18 to move up and down through the rack 33 so as to control the opening or closing of the valve body 1.
Optionally, guide sleeves are disposed at two ends of the rack 33, so that the rack 33 has two limit positions, and the two limit positions of the rack 33 can trigger a forward rotation switch and a reverse rotation switch of the electric driving mechanism respectively.
In the above embodiment, as shown in fig. 5 and 6, the electric driving mechanism includes the first electric motor 71 and the clutch gear 36, the first electric motor 71 is in driving connection with the clutch gear 36, and in the energized state, the clutch gear 36 is engaged with the first transition gear 35 of the gear transmission mechanism under the action of the first clutch 32; manual drive mechanism includes manual drive gear 37, handle 38 and dwang 39, the folding installation of handle 38 is in the one end of dwang 39, the other end of dwang 39 passes through first clutch 32 with the mode of shifting fork with manual drive gear 37 is connected, manual drive gear 37 with gear drive's first transition gear 35 meshes.
In an embodiment of the present application, as shown in fig. 7, the adjusting mechanism 5 includes a second clutch 54, a driving shaft 55 and a second transition gear 57, two ends of the driving shaft 55 are respectively connected with a handwheel 51 and a second motor 72, a manual spline 52, a reversing spline 53, an adjusting gear 56 and a limiting shaft sleeve 58 are sequentially sleeved between the handwheel 51 and the second motor 72, the second clutch 54 is correspondingly arranged with the reversing spline 53, and two sides of the second transition gear 57 are respectively engaged with the adjusting gear 56 and the connecting gear 43 of the connecting mechanism 4 for transmission.
The adjusting mechanism 5 of the present application is electrically adjusted in a normal working state, the reversing spring abuts against the reversing spline 53 and the driving shaft 55 under the action of a pre-tightening force, meanwhile, the second motor 72 drives the driving shaft 55 to drive the adjusting gear 56 to rotate through the reversing spline 43, the adjusting gear 56 drives the second transition gear 57 to rotate, and the second transition gear 57 further drives the connecting gear 43 to enable the valve rod 14 to move up and down, so that the electrical adjustment is realized; under the condition that needs manual regulation, through the shift fork that rotates second clutch 54, make switching-over spline 53 overcome the pretightning force of switching-over spring and mesh with manual spline 52, then drive switching-over spline 53 action through rotating hand wheel 51 thereby the drive adjusting gear 56 rotates, adjusting gear 56 drives second transition gear 57 and rotates, second transition gear 57 further drives connecting gear 43 and makes valve rod 14 up-and-down motion realizes manual regulation.
In an embodiment of the present application, as shown in fig. 1, the natural gas wellhead adjustment quick-break device further includes an actuating mechanism 2 and a detection mechanism 6, the detection mechanism 6 is respectively connected to the valve body 1 and the actuating mechanism 2, the actuating mechanism 2 is in transmission connection with the valve element 18, the detection mechanism 6 detects pressure in the valve body 1 and enables the actuating mechanism 2 to control the valve element 18 to move in the valve body 1 according to the pressure, so as to open or close the valve body 1.
In the above embodiment, as shown in fig. 8, the actuator 2 includes a balance plate 21, a limit switch 22, and a reset mechanism 23, the limit switch 22 is installed in the actuator 1 through a rotating shaft 27, an end of the balance plate 21 abuts against the limit switch 22, the balance plate 21 and the rotating shaft 27 are located on the same horizontal plane and are balanced through a spring, the limit switch 22 is triggered when the balance plate 21 loses balance, the limit switch 22 rotates clockwise to control the valve element 18 to move through the rotating shaft 27 to close the valve body 1, and the reset mechanism 23 is disposed corresponding to the limit switch 22 to enable the limit switch 22 to rotate in a reset manner, so that the limit switch 22 rotates counterclockwise to control the valve element 18 to move to open the valve body 1.
Optionally, the executing mechanism 2 further includes an upper tilting plate 24, a lower tilting plate 25, an indication plate 26 and a third motor 73, the limit switch 22 triggers the upper tilting plate 24 to enable the third motor 73 to rotate forward under the condition of counterclockwise rotation, the limit switch 22 triggers the lower tilting plate 25 to enable the third motor 73 to rotate backward under the condition of reset rotation, and the indication plate 26 and the reset mechanism 23 are correspondingly arranged to indicate the working state of the valve 1.
Optionally, an inclined surface is arranged at the end of the limit switch 22, the reset mechanism 23 includes a reset button and a reset block, the reset button drives the reset block to move, so that the inclined surface of the limit switch 22 can be abutted to the reset block, after the reset button is pressed, the reset block moves downwards, the end of the reset block moves along the inclined surface of the limit switch 22, in the process, the limit switch 22 resets and rotates clockwise, and when the limit switch rotates to the initial position, the balance plate 21 and the limit switch 22 can restore the initial balance state again.
In the above embodiment, as shown in fig. 8, the detection mechanism 6 includes a pressure detection end 61, a pressure gauge 62 and a pressure sensor 63, the pressure detection end 61 is installed in the valve body 1 for detecting pressure, the pressure gauge 62 is respectively connected to the pressure detection end 61 and the pressure sensor 63 for displaying the pressure detected by the pressure detection end 61 so as to facilitate detection by an operator at any time, the pressure sensor 63 is connected to the balance plate 21 of the actuator 2, the pressure sensor 63 can be set according to a safe range of wellhead pressure of the natural gas well, and when the wellhead pressure of the natural gas well exceeds the safe range, the pressure sensor 63 can control the actuator 2 to close the valve body 1 through the balance plate 21.
The gas well mouth adjusting and quick-breaking device can monitor the pressure of the gas well mouth in the valve body 1 by arranging the actuating mechanism 2 and the detecting mechanism 6, and close the gas well when the pressure of the gas well mouth changes to a dangerous range, so that the safety in the gas exploitation process is improved.
The preferred embodiments and examples of the present application have been described in detail with reference to the accompanying drawings, but the present application is not limited to the embodiments and examples described above, and various changes can be made within the knowledge of those skilled in the art without departing from the concept of the present application.
Claims (12)
1. The natural gas wellhead adjusting quick-break device is characterized by comprising a valve body (1), a lifting mechanism (3), a connecting mechanism (4) and an adjusting mechanism (5), wherein the valve body (1) is respectively connected with the lifting mechanism (3) and the adjusting mechanism (5) through the connecting mechanism (4), a valve core (18) and a valve rod (14) are arranged in the valve body (1), the lifting mechanism (3) enables the valve core (18) to move in the valve body (1) in a manual or electric mode so as to control the opening or closing of the valve body (1), and the adjusting mechanism (5) enables the valve rod (14) to move in the valve body (1) in a manual or electric mode so as to control the flow of natural gas flowing through the valve body (1);
the natural gas valve comprises a valve body (1), wherein a circulation pipeline (12) for circulating natural gas is arranged on the valve body (11), a valve cavity (13) communicated with the circulation pipeline (12) is arranged in the middle of the valve body (11), a valve rod (14) is positioned in the valve cavity (13) and moves up and down, valve seats (17) are arranged on two sides of the valve rod (14), and the valve seats (17) are installed in the valve body (1) in a matched mode through shaft holes and sealed with the valve rod (14);
the outside cover of valve rod (14) is equipped with valve barrel (15), the one end of valve barrel (15) with valve chamber (13) correspond the setting, the other end of valve barrel (15) pass through spring holder (16) with disk seat (17) looks butt be equipped with the discharge orifice on valve barrel (15), the natural gas passes through the entry entering of circulation pipeline (12) in valve body (1), in discharge orifice entering valve chamber (13) on rethread valve barrel (15) and with case (18) form the annular space, valve rod (14) are in the through-flow area of the annular space of up-and-down motion's in-process control valve barrel (15) and case (18) in valve chamber (13).
2. The natural gas wellhead adjustment quick-break device as claimed in claim 1, wherein a limiting sleeve (42) is mounted at an end of the valve core (18), the limiting sleeve (42) is arranged corresponding to a limiting member (41) at an end of the valve cavity (13), the valve core (18) drives the limiting sleeve (42) to move up and down in a process that the lifting mechanism (3) enables the valve core (18) to move in the valve body (1) in a manual or electric mode, when the limiting sleeve (42) is located at a top end of the valve cavity (13), the valve body (1) is opened, and when the limiting sleeve (42) is located at a bottom end of the valve cavity (13), the valve body (1) is closed.
3. The natural gas wellhead adjustment quick-break device according to claim 1, characterized in that the connecting mechanism (4) comprises a connecting gear (43), a sealing seat (44), a connecting rod (45) and a guide shaft (46), the sealing seat (44) is mounted on the valve body (1) and connected with the lifting mechanism (3), the connecting gear (43) is sleeved on the guide shaft (46) and connected with the adjusting mechanism (5), one end of the connecting rod (45) is connected with the guide shaft (46) so that the connecting rod (45) moves up and down along the guide shaft (46), and the other end of the connecting rod (45) is connected with the valve rod (14) so as to control the movement of the valve rod (14).
4. The natural gas wellhead adjusting quick-break device as claimed in claim 1, wherein the lifting mechanism (3) comprises a gear box (31), a first clutch (32), a gear transmission mechanism, an electric driving mechanism and a manual driving mechanism are installed in the gear box (31), the electric driving mechanism and the manual driving mechanism are respectively connected with the gear transmission mechanism and respectively control the gear transmission mechanism to move in an electric or manual mode, the gear transmission mechanism is connected with the valve core (18) to control the valve body (1) to open and close, and the first clutch (32) is arranged corresponding to the electric driving mechanism and the manual driving mechanism.
5. The natural gas wellhead adjustment quick-break device according to claim 4, characterized in that the gear transmission mechanism comprises a rack (33), a rack gear (34) and a first transition gear (35), one side of the first transition gear (35) is in transmission connection with an electric driving mechanism and a manual driving mechanism respectively, the other side of the first transition gear (35) is meshed with one end of the rack gear (34), the other end of the rack gear (34) is meshed with the rack (33), and the rack (33) is connected with the valve core (18).
6. A natural gas wellhead adjustment hard-break device according to claim 4, characterized in that the electric driving mechanism comprises a first motor (71) and a clutch gear (36), the first motor (71) is connected with the clutch gear (36) in a driving way, and in an electrified state, the clutch gear (36) is meshed with a first transition gear (35) of the gear transmission mechanism under the action of the first clutch (32).
7. The natural gas wellhead adjustment quick-break device according to claim 4, characterized in that the manual driving mechanism comprises a manual driving gear (37), a handle (38) and a rotating rod (39), the handle (38) is mounted at one end of the rotating rod (39) in a folding manner, the other end of the rotating rod (39) is connected with the manual driving gear (37) in a shifting manner through the first clutch (32), and the manual driving gear (37) is meshed with the first transition gear (35) of the gear transmission mechanism.
8. The natural gas wellhead adjustment quick-break device according to claim 1, characterized in that the adjusting mechanism (5) comprises a second clutch (54), a driving shaft (55) and a second transition gear (57), two ends of the driving shaft (55) are respectively connected with a hand wheel (51) and a second motor (72), a manual spline (52), a reversing spline (53), an adjusting gear (56) and a limiting shaft sleeve (58) are sequentially sleeved between the hand wheel (51) and the second motor (72), the second clutch (54) is arranged corresponding to the reversing spline (53), and two sides of the second transition gear (57) are respectively engaged with the adjusting gear (56) and a connecting gear (43) of the connecting mechanism (4).
9. The natural gas wellhead adjustment quick-break device according to claim 1, characterized by further comprising an actuating mechanism (2) and a detection mechanism (6), wherein the detection mechanism (6) is respectively connected with the valve body (1) and the actuating mechanism (2), the actuating mechanism (2) is in transmission connection with the valve core (18), and the detection mechanism (6) detects pressure in the valve body (1) and enables the actuating mechanism (2) to control the valve core (18) to move in the valve body (1) according to the pressure so as to open or close the valve body (1).
10. The natural gas wellhead adjusting quick-break device according to claim 9, characterized in that the actuator (2) comprises a balance plate (21), a limit switch (22) and a reset mechanism (23), the limit switch (22) is installed in the actuator (2) through a rotating shaft (27), the end of the balance plate (21) is abutted against the limit switch (22), the balance plate (21) and the rotating shaft (27) are located on the same horizontal plane and are balanced through a spring, the limit switch (22) is triggered when the balance plate (21) loses balance, the limit switch (22) rotates clockwise so as to control the valve core (18) to move through the rotating shaft (27) to close the valve body (1), and the reset mechanism (23) and the limit switch (22) are correspondingly arranged to enable the limit switch (22) to rotate in a reset manner, the limit switch (22) is rotated anticlockwise so as to control the valve core (18) to move to open the valve body (1).
11. The natural gas wellhead adjustment quick-break device according to claim 10, characterized in that the actuator (2) further comprises an up-warping plate (24), a down-warping plate (25), a sign (26) and a third motor (73), the limit switch (22) triggers the up-warping plate (24) to rotate the third motor (73) forwards under the condition of anticlockwise rotation, the limit switch (22) triggers the down-warping plate (25) to rotate the third motor (73) backwards under the condition of reset rotation, and the sign (26) is arranged corresponding to the reset mechanism (23).
12. The natural gas wellhead adjusting quick-break device as claimed in claim 9, characterized in that the detection mechanism (6) comprises a pressure detection end (61), a pressure gauge (62) and a pressure sensor (63), the pressure detection end (61) is installed in the valve body (1), the pressure gauge (62) is respectively connected with the pressure detection end (61) and the pressure sensor (63), and the pressure sensor (63) is connected with a balance plate (21) of the actuating mechanism (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252320.5A CN111042764B (en) | 2019-12-09 | 2019-12-09 | Emergency breaking device for natural gas wellhead adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911252320.5A CN111042764B (en) | 2019-12-09 | 2019-12-09 | Emergency breaking device for natural gas wellhead adjustment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111042764A CN111042764A (en) | 2020-04-21 |
| CN111042764B true CN111042764B (en) | 2021-10-01 |
Family
ID=70235286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911252320.5A Active CN111042764B (en) | 2019-12-09 | 2019-12-09 | Emergency breaking device for natural gas wellhead adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111042764B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111750157B (en) * | 2020-07-06 | 2021-11-02 | 中汽研汽车检验中心(宁波)有限公司 | Pneumatic manual and electric adjusting device for adhesion coefficient utilization rate test |
| CN112709828B (en) * | 2021-01-06 | 2022-08-30 | 中国石油天然气股份有限公司 | Needle valve and using method thereof |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662603A (en) * | 1985-10-03 | 1987-05-05 | Seaboard Wellhead, Inc. | Piloted wellhead flow control valve |
| US6999883B1 (en) * | 2002-03-15 | 2006-02-14 | John Brady | Landfill gas extraction constant flow control method and device |
| CN101210624A (en) * | 2006-12-31 | 2008-07-02 | 抚顺市振鑫真空设备制造有限公司 | Dual-purpose valve for ending and adjusting flux |
| CN201176863Y (en) * | 2008-04-23 | 2009-01-07 | 西域科创(北京)油气装备技术研究院 | Pressure and flow controlled gas recovery well head safety closing device |
| CN201372810Y (en) * | 2009-03-18 | 2009-12-30 | 中国石油天然气股份有限公司 | Single-well remote control well opening and closing device |
| CN101787866A (en) * | 2010-02-25 | 2010-07-28 | 中国石油天然气股份有限公司 | Pilot-operated self-holding electromagnetic valve for gas well mouth |
| CN103147717A (en) * | 2013-01-31 | 2013-06-12 | 陕西航天泵阀科技集团有限公司 | Emergency cutoff valve |
| CN103603962A (en) * | 2013-11-27 | 2014-02-26 | 上海美钻设备成套有限公司 | Plunger-type throttle valve |
| CN203453522U (en) * | 2013-09-11 | 2014-02-26 | 宁波埃美柯铜阀门有限公司 | Flow regulating valve |
| CN103806866A (en) * | 2012-11-08 | 2014-05-21 | 西安希佛隆阀门有限公司 | Well mouth remote control adjustment and urgent switching-off protection device |
| CN203847729U (en) * | 2014-05-19 | 2014-09-24 | 陕西航天泵阀科技集团有限公司 | Intelligent opening and closing adjusting valve for well mouth |
| CN204677174U (en) * | 2015-03-27 | 2015-09-30 | 中石化重庆涪陵页岩气勘探开发有限公司 | Petroleum gas well head output remote control and regulation device |
| CN106869874A (en) * | 2017-04-25 | 2017-06-20 | 西安希佛隆阀门有限公司 | The device that a kind of remote control natural gas well is opened and closed |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1121692A (en) * | 1979-11-29 | 1982-04-13 | James A. Neff | Pressure-regulator and flow control valve with pre-exhaust vent means |
| US4681297A (en) * | 1985-05-01 | 1987-07-21 | Emerson Electric Co. | Adjustable pressure regulating solenoid valve |
| CN2382919Y (en) * | 1999-07-30 | 2000-06-14 | 北京天箭星机电技术有限公司 | Constant flow regulating valve |
| US6742537B2 (en) * | 2002-07-16 | 2004-06-01 | Eaton Corporation | Combination solenoid operated flow control and shut-off valve with pressure transducer |
| CN101668973B (en) * | 2007-03-31 | 2013-03-13 | 盾安美斯泰克公司(美国) | Pilot operated spool valve |
| IT1391371B1 (en) * | 2008-10-07 | 2011-12-13 | Eni Spa | WELL HEAD VALVE SYSTEM FOR FLOW ADJUSTMENT WITH INTEGRATED MULTIFASE FLOW MEASUREMENT FUNCTIONALITY |
| CN102313054B (en) * | 2011-08-19 | 2014-04-16 | 浙江盾安阀门有限公司 | Piston type pressure reducing valve |
| US9915960B2 (en) * | 2014-08-15 | 2018-03-13 | Suprema (Zhuhai J/V) Thermostatic Sanitaryware Co., Ltd. | Single-handle dual-control thermostatic faucet |
| GB2533640B (en) * | 2014-12-24 | 2017-10-25 | Cameron Int Corp | Valve assembly |
-
2019
- 2019-12-09 CN CN201911252320.5A patent/CN111042764B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4662603A (en) * | 1985-10-03 | 1987-05-05 | Seaboard Wellhead, Inc. | Piloted wellhead flow control valve |
| US6999883B1 (en) * | 2002-03-15 | 2006-02-14 | John Brady | Landfill gas extraction constant flow control method and device |
| CN101210624A (en) * | 2006-12-31 | 2008-07-02 | 抚顺市振鑫真空设备制造有限公司 | Dual-purpose valve for ending and adjusting flux |
| CN201176863Y (en) * | 2008-04-23 | 2009-01-07 | 西域科创(北京)油气装备技术研究院 | Pressure and flow controlled gas recovery well head safety closing device |
| CN201372810Y (en) * | 2009-03-18 | 2009-12-30 | 中国石油天然气股份有限公司 | Single-well remote control well opening and closing device |
| CN101787866A (en) * | 2010-02-25 | 2010-07-28 | 中国石油天然气股份有限公司 | Pilot-operated self-holding electromagnetic valve for gas well mouth |
| CN103806866A (en) * | 2012-11-08 | 2014-05-21 | 西安希佛隆阀门有限公司 | Well mouth remote control adjustment and urgent switching-off protection device |
| CN103147717A (en) * | 2013-01-31 | 2013-06-12 | 陕西航天泵阀科技集团有限公司 | Emergency cutoff valve |
| CN203453522U (en) * | 2013-09-11 | 2014-02-26 | 宁波埃美柯铜阀门有限公司 | Flow regulating valve |
| CN103603962A (en) * | 2013-11-27 | 2014-02-26 | 上海美钻设备成套有限公司 | Plunger-type throttle valve |
| CN203847729U (en) * | 2014-05-19 | 2014-09-24 | 陕西航天泵阀科技集团有限公司 | Intelligent opening and closing adjusting valve for well mouth |
| CN204677174U (en) * | 2015-03-27 | 2015-09-30 | 中石化重庆涪陵页岩气勘探开发有限公司 | Petroleum gas well head output remote control and regulation device |
| CN106869874A (en) * | 2017-04-25 | 2017-06-20 | 西安希佛隆阀门有限公司 | The device that a kind of remote control natural gas well is opened and closed |
Non-Patent Citations (3)
| Title |
|---|
| 一种紧急切断阀;林中灿 等;《科技成果》;20191201;全文 * |
| 超快开启截止阀;项光武;《阀门》;20160225;全文 * |
| 输气管道截断阀室远程控制系统设计;汪钧;《煤气与热力》;20080215;全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111042764A (en) | 2020-04-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111042764B (en) | Emergency breaking device for natural gas wellhead adjustment | |
| CN110285256B (en) | Indoor combustible pipeline encryption protection device | |
| KR101165976B1 (en) | Clutch apparatus for electric valve actuator | |
| CN216590024U (en) | Wear-resisting case governing valve | |
| WO2010039044A3 (en) | Combined metering and shutoff valve controlled by rotation of an offset crank with a pin in slot driving the two valves into and out of seating engagement simultaneously | |
| CN202893548U (en) | Shower head with suspending push button | |
| CN106763985A (en) | A kind of novel valve | |
| CN211259660U (en) | Overground bolt valve clack with warning function | |
| WO2000070251A1 (en) | A fluid control double position valve for pig | |
| KR102206879B1 (en) | Apparatus for opening and closing valve | |
| CN105972256B (en) | Rotary water route threeway switching device | |
| CN113833874A (en) | Electric ball valve | |
| CN210566555U (en) | Flow velocity controllable regulating valve | |
| CN201636364U (en) | Novel automatic temperature-control gas safety valve | |
| CN203214904U (en) | Bevel self-locking type self-closing faucet during cut-off of water supply | |
| CN206409715U (en) | A kind of multifunctional motor-driven controls valve gear | |
| CN202629221U (en) | Intelligent control valve for gas pressure stabilization | |
| CN208750051U (en) | Plug valve for gas stove | |
| CN207514313U (en) | A kind of cut-off copper valve for water heater | |
| CN210290944U (en) | Self-closing valve and ball valve switch integrated device | |
| CN206144411U (en) | But smoke protection fog goes door structure of smog | |
| KR200378223Y1 (en) | Apparatus for Operating Automatic Fire Extinguisher | |
| CN200986214Y (en) | Temperature control flap for gas warming machine | |
| CN202392126U (en) | Mini tap | |
| CN215371170U (en) | Filtering water purifying faucet |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |