CN118049605B - Safe gas pressure regulating equipment for preventing flow from passing through - Google Patents
Safe gas pressure regulating equipment for preventing flow from passing through Download PDFInfo
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- CN118049605B CN118049605B CN202410452636.3A CN202410452636A CN118049605B CN 118049605 B CN118049605 B CN 118049605B CN 202410452636 A CN202410452636 A CN 202410452636A CN 118049605 B CN118049605 B CN 118049605B
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 120
- 230000000903 blocking effect Effects 0.000 claims abstract description 71
- 238000009434 installation Methods 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 7
- 210000001503 joint Anatomy 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims 1
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 39
- 230000001960 triggered effect Effects 0.000 description 6
- 230000032683 aging Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Fluid Pressure (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to the technical field of gas pressure regulating equipment, and provides an overcurrent blocking safety gas pressure regulating device which comprises a pressure regulating shell with a containing cavity, a pressure regulating assembly and an overcurrent blocking assembly, wherein the pressure regulating assembly and the overcurrent blocking assembly are arranged in the pressure regulating shell, the overcurrent blocking assembly and the pressure regulating assembly are sequentially arranged along the airflow direction, the pressure regulating assembly comprises an overcurrent cutting unit, a resetting unit and an error touch prevention unit, the overcurrent cutting unit is arranged between the resetting unit and the error touch prevention unit, the containing cavity is divided into a first cavity and a second cavity along the airflow direction by the overcurrent cutting unit, the error touch prevention unit is communicated with the second cavity, and when the pressure of the first cavity is larger than that of the second cavity, the overcurrent cutting unit is closed, and the error touch prevention unit locks the overcurrent cutting unit to prevent the resetting unit from opening the overcurrent cutting unit. Through the technical scheme, the problem that potential safety hazards still exist due to improper operation even though the flow is blocked in the using process of the voltage regulating equipment in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of fuel gas pressure regulating equipment, in particular to safety fuel gas pressure regulating equipment with excessive blocking.
Background
The gas pressure regulator is specially suitable for being used as gas pressure regulating equipment for regulating and stabilizing pressure in a gas transmission and distribution system, and is widely applied to gas transmission and distribution engineering. The self-supporting regulating valve has the function of automatically moving by the energy of the controlled fluid without an external power source and keeping the controlled fluid stable within a certain standard pressure range so as to meet the use requirement of a user.
The gas pressure regulator is generally divided into a household pressure regulator and a commercial pressure regulator, wherein the household pressure regulator is generally provided with a flow blocking structure in consideration of safety, namely, when air leakage is caused by damage, aging and other conditions of a pipeline, the air flow in the pressure regulator is overlarge, and the flow blocking structure is triggered at the moment, so that a certain safety effect is achieved, but in the practical use process, when the sudden flow blocking occurs, people can consciously open a valve again, and try to use the gas again, and the safety accidents often occur, and in recent years, the gas safety accidents frequently occur, so that a safer pressure regulator is needed.
Disclosure of Invention
The invention provides a safety gas pressure regulating device with over-flow blocking, which solves the problem that potential safety hazards still exist due to improper operation even though the over-flow blocking occurs in the using process of the pressure regulating device in the prior art.
The technical scheme of the invention is as follows:
The utility model provides a safe gas pressure regulating equipment that overflows, gas pressure regulating equipment is including having the pressure regulating shell that holds the chamber and setting up pressure regulating subassembly and the overflow shutoff subassembly in the pressure regulating shell, overflow shutoff subassembly with pressure regulating subassembly sets gradually along the air current direction, overflow shutoff subassembly includes overflow shut-off unit, reset unit and prevents mistake touch unit, overflow shut-off unit sets up reset unit with prevent mistake touch unit between, overflow shut-off unit will hold the chamber and divide into first cavity and second cavity along the air current direction, prevent mistake touch unit with second cavity intercommunication, works as when the pressure of first cavity is greater than second cavity pressure, overflow shut-off unit just prevent mistake touch unit locking overflow shut-off unit prevents reset unit opens overflow shut-off unit.
The overcurrent cutting unit comprises a first baffle, a second baffle and a plugging ball, wherein the first baffle, the second baffle and the plugging ball are arranged in the accommodating cavity, vent holes are formed in the first baffle and the second baffle, the plugging ball is located between the first baffle and the second baffle, and the diameter of the vent holes is smaller than that of the plugging ball.
The anti-misoperation unit comprises an installation shell which is detachably arranged on the pressure regulating shell, a first diaphragm, a push rod and a first spring are arranged in the installation shell, the first diaphragm divides the installation shell into a third chamber and a fourth chamber, the third chamber is close to the overcurrent cutting unit, the third chamber is communicated with the second chamber, the push rod penetrates through the first diaphragm, and the first spring is sleeved on the push rod and is located in the fourth chamber.
The anti-misoperation unit further comprises a limiting pin and a second spring, wherein the limiting pin and the second spring are arranged on the inner wall of the fourth chamber, a limiting boss is arranged on the limiting pin in a sleeved mode, one end of the second spring acts on the inner wall of the fourth chamber, the other end of the second spring acts on the limiting boss, a unidirectional boss is arranged on the ejector rod, the upper end face of the unidirectional boss is a first inclined face, one end of the limiting pin extends out of the installation shell and is movable, the other end of the limiting pin is in butt joint with the ejector rod, the end portion of the limiting pin is a second inclined face, and the second inclined face is matched with the first inclined face.
The reset unit comprises a reset seat which is detachably arranged on the pressure regulating shell, a reset rod and a third spring are arranged on the reset seat, the top end of the reset rod is a pressing end, the third spring is sleeved on the reset rod, one end of the third spring acts on the reset seat, the other end of the third spring acts on the pressing end at the top of the reset rod, and the reset rod can penetrate through the reset seat and is in butt joint with the plugging ball.
The pressure regulating assembly comprises a second diaphragm, an adjusting rod, a fourth spring and a valve core rod, wherein the second diaphragm is arranged in the second cavity and forms an adjusting cavity with the pressure regulating shell, the adjusting rod is arranged on the second diaphragm, the fourth spring is arranged in the adjusting cavity, one end of the valve core rod is hinged to the adjusting rod, the middle part of the valve core rod is hinged to the pressure regulating shell, the other end of the valve core rod is matched with the flow section of the second cavity, and the adjusting rod drives the valve core rod to adjust the opening of the flow section of the second cavity.
The pressure regulating subassembly still includes cock and protection cap, the cock is adjustable to be set up on the pressure regulating shell, the cock with fourth spring butt, the cock outside is provided with the protection cap.
A filter screen is further arranged in the first cavity.
The inlet end of the pressure regulating shell is provided with a sealing ring and a hand wheel lock catch, the sealing ring is arranged at the end part of the inlet end of the pressure regulating shell, the hand wheel lock catch is sleeved at the inlet end of the pressure regulating shell, the inlet end of the pressure regulating shell is provided with a flange, the hand wheel lock catch is abutted to the flange, the outlet end of the pressure regulating shell is an inserting end, and the outer surface of the inserting end is of a concave-convex structure.
And a pressure gauge is further arranged on the pressure regulating shell.
The working principle and the beneficial effects of the invention are as follows:
The invention discloses a safety gas pressure regulating device with overcurrent blocking, wherein a pressure regulating device main body is a pressure regulating shell with a containing cavity, an overcurrent blocking component and a pressure regulating component are arranged in the pressure regulating shell, the mounting sequence of the overcurrent blocking component and the pressure regulating component is sequentially arranged along the direction of gas flow during use, the overcurrent blocking component can not be triggered during normal operation, and the pressure regulating component can automatically regulate gas pressure according to the gas consumption condition and control gas outlet quantity; when the outlet end of the gas pressure regulating device breaks down, for example, the pipeline leaks due to ageing or damage, the air flow on the air inlet side of the gas pressure regulating device is overlarge, the pressure rises, the overflow blocking assembly is triggered at the moment, the overflow blocking assembly is divided into three parts, the overflow blocking unit is arranged inside the pressure regulating shell, the inner cavity of the pressure regulating shell is divided into a first cavity and a second cavity along the air flow direction by the overflow blocking unit, the error touch preventing unit is communicated with the second cavity, the reset unit is used for resetting the overflow blocking unit, when leakage occurs, the pressure of the first cavity is larger than that of the second cavity, at the moment, the overflow blocking unit can trigger to close the blocking air flow under the condition of pressure drop of the second cavity, and meanwhile, the error touch preventing unit can act on the overflow blocking unit under the triggering of pressure drop of the second cavity.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
In the figure: 1. the pressure regulating shell, 2, the overcurrent cutting unit, 3, the reset unit, 4, the error touch prevention unit, 5, the first chamber, 6, the second chamber, 7, the first baffle, 8, the second baffle, 9, the plugging ball, 10, the vent, 11, the installation shell, 12, the first diaphragm, 13, the ejector rod, 14, the first spring, 15, the third chamber, 16, the fourth chamber, 17, the limiting pin, 18, the second spring, 19, the limiting boss, 20, the unidirectional boss, 21, the first inclined plane, 22, the second inclined plane, 23, the reset seat, 24, the reset lever, 25, the third spring, 26, the second diaphragm, 27, the regulation lever, 28, the fourth spring, 29, the valve core rod, 30, the cock, 31, the protective cap, 32, the filter screen, 33, the sealing ring, 34, the hand wheel lock catch, 35, the flange, 36 and the pressure gauge.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-2, the embodiment provides an excessive blocking safety gas pressure regulating device, which comprises a pressure regulating shell 1 with a containing cavity, a pressure regulating component and an excessive blocking component, wherein the pressure regulating component and the excessive blocking component are arranged in the pressure regulating shell 1, the excessive blocking component and the pressure regulating component are sequentially arranged along the airflow direction, the excessive blocking component comprises an excessive blocking unit 2, a reset unit 3 and an anti-error touch unit 4, the excessive blocking unit 2 is arranged between the reset unit 3 and the anti-error touch unit 4, the containing cavity is divided into a first cavity 5 and a second cavity 6 along the airflow direction by the excessive blocking unit 2, the anti-error touch unit 4 is communicated with the second cavity 6, and when the pressure of the first cavity 5 is greater than the pressure of the second cavity 6, the excessive blocking unit 2 is closed, and the anti-error touch unit 4 locks the excessive blocking unit 2 to prevent the reset unit 3 from opening the excessive blocking unit 2.
In the embodiment, a safe gas pressure regulating device with overcurrent blocking is disclosed, a pressure regulating device main body is a pressure regulating shell 1 with a containing cavity, an overcurrent blocking component and a pressure regulating component are arranged in the pressure regulating shell 1, the installation sequence of the overcurrent blocking component and the pressure regulating component is sequentially arranged along the direction of gas flow during use, the overcurrent blocking component can not be triggered during normal operation, and the pressure regulating component can automatically regulate gas pressure according to the gas consumption condition and control gas outlet quantity; when the outlet end of the gas pressure regulating device fails, for example, a pipeline leaks due to aging or damage, the gas flow on the gas inlet side of the gas pressure regulating device is overlarge, the pressure rises, the overcurrent blocking component is triggered at the moment and is divided into three parts, the overcurrent blocking component 2 is arranged inside the pressure regulating shell 1, the overcurrent blocking component 2 divides the inner cavity of the pressure regulating shell 1 into a first cavity 5 and a second cavity 6 along the direction of the gas flow, the error-proof unit 4 is communicated with the second cavity 6, the reset unit 3 is used for resetting the overcurrent blocking unit 2, when the leakage occurs, the pressure of the first cavity 5 is larger than that of the second cavity 6, at the moment, the overcurrent blocking component 2 can trigger to close the blocking gas flow under the overcurrent condition, and meanwhile, the error-proof unit 4 acts on the overcurrent blocking unit 2 under the triggering of the pressure drop of the second cavity 6, because at the moment, the error-proof unit 4 prevents the reset unit 3 from resetting the overcurrent blocking unit 2, and the error-proof unit 4 prevents the reset unit 3 from resetting the overcurrent blocking unit 2 in a plurality of blocking modes of the reset units, namely, the reset unit 3 can not be reset by adopting a mode of blocking units and can not be reset in a mode of the reset unit 3. In the use process, after a user finds out that the sudden gas is blocked, even if the subconscious pressure regulating equipment is reset, the gas can not leak again, the accident caused by false triggering is avoided, and the safety of the whole use is improved.
The overcurrent cutting unit 2 comprises a first baffle 7, a second baffle 8 and a plugging ball 9 which are arranged in the accommodating cavity, wherein vent holes 10 are formed in the first baffle 7 and the second baffle 8, the plugging ball 9 is located between the first baffle 7 and the second baffle 8, and the diameter of the vent holes 10 is smaller than that of the plugging ball 9.
In this embodiment, the overcurrent cutoff unit 2 specifically includes a first baffle 7 and a second baffle 8 disposed in the accommodating cavity, a space is provided between the first baffle 7 and the second baffle 8, a blocking ball 9 is disposed on the first baffle 7 and the second baffle 8, and ventilation holes 10 are disposed on the first baffle 7 and the second baffle 8, when overcurrent, the blocking ball 9 is pushed by larger airflow and pressure and blocks the ventilation holes 10 along the airflow direction, when normal use, the airflow pressure is not large, the blocking ball 9 falls on the bottom between the first baffle 7 and the second baffle 8 under the action of gravity, so that the airflow is smooth. In the present embodiment, the first baffle 7 and the second baffle 8 are disposed in order along the direction of the air flow.
The anti-misoperation unit 4 comprises an installation shell 11 which is detachably arranged on the pressure regulating shell 1, a first diaphragm 12, a push rod 13 and a first spring 14 are arranged in the installation shell 11, the first diaphragm 12 divides the installation shell 11 into a third chamber 15 and a fourth chamber 16, the third chamber 15 is close to the overcurrent cutting unit 2, the third chamber 15 is communicated with the second chamber 6, the push rod 13 passes through the first diaphragm 12, and the first spring 14 is sleeved on the push rod 13 and is positioned in the fourth chamber 16.
In this embodiment, the anti-error touch unit 4 is specifically that an installation housing 11 is disposed on the pressure regulating housing 1, a first membrane 12 is installed in the installation housing 11, a space in the installation housing 11 is divided into a third chamber 15 and a fourth chamber 16, wherein the third chamber 15 is close to one side of the overcurrent cutoff unit 2, the third chamber 15 is communicated with the second chamber 6, a push rod 13 passes through the first membrane 12 and is installed, the first membrane 12 is movable and drives the push rod 13 to move, a first spring 14 is installed in the fourth chamber 16, and the first spring 14 can be conveniently located to be sleeved on a part of the push rod 13 located in the fourth chamber 16. When the gas pressure regulating device works, when gas is normally used, the pressure of the first chamber 5 and the pressure of the second chamber 6 are balanced, the second chamber 6 is communicated with the third chamber 15, the pressure of the third chamber 15 can press the first diaphragm 12 to deform towards the direction close to the fourth chamber 16, the ejector rod 13 is driven to be far away from the overcurrent cutting unit 2, the pressure of the third chamber 15 to the first diaphragm 12 can be in dynamic balance with the first spring 14, and at the moment, the whole gas pressure regulating device is in a normal working state. When the leakage occurs and overcurrent occurs, the overcurrent cutoff unit 2 is triggered by the first chamber 5 due to the increase of the overcurrent pressure, the blocking ball 9 blocks the vent hole 10, the air pressure in the second chamber 6 is reduced due to the leakage, the air pressure in the third chamber 15 communicated with the second chamber 6 is reduced, the force of the first spring 14 is larger than the pressure of the third chamber 15 on the first diaphragm 12, the first diaphragm 12 deforms towards the third chamber 15, the ejector rod 13 is driven to move towards the direction close to the overcurrent cutoff unit 2 until the ejector rod 13 abuts against the blocking ball 9, and at the moment, if a user wants to reset the blocking ball 9 through the reset unit 3, the reset of the blocking ball is prevented due to the support of the ejector rod 13, so that the gas leakage caused by false triggering can be avoided, accidents are caused, and the safety is improved.
The anti-misoperation unit 4 further comprises a limiting pin 17 and a second spring 18, wherein the limiting pin 17 and the second spring 18 are arranged on the inner wall of the fourth chamber 16, a limiting boss 19 is arranged on the limiting pin 17, the second spring 18 is sleeved on the limiting pin 17, one end of the second spring 18 acts on the inner wall of the fourth chamber 16, the other end of the second spring acts on the limiting boss 19, a one-way boss 20 is arranged on the ejector rod 13, the upper end face of the one-way boss 20 is a first inclined face 21, one end of the limiting pin 17 extends out of the mounting shell 11 and is movable, the other end of the limiting pin 17 is in butt joint with the ejector rod 13, the end of the limiting pin 17 is a second inclined face 22, and the second inclined face 22 is matched with the first inclined face 21.
In this embodiment, further, the side wall of the fourth chamber 16 is provided with the stop pin 17 and the second spring 18, the stop pin 17 is provided with the stop boss 19, the second spring 18 is sleeved on the stop pin 17, and is located between the stop boss 19 and the fourth chamber 16, the second spring 18 is in a compressed state, the second spring 18 makes the stop pin 17 abut against the ejector rod 13, the part of the ejector rod 13 located in the fourth chamber 16 is also provided with the unidirectional boss 20, the surface of the unidirectional boss 20, which abuts against the stop pin 17, is provided with a slope that can be matched with, the upper end surface of the unidirectional boss 20 is the first slope 21, the end surface of the stop pin 17 is the downward second slope 22, it can be understood that when the first membrane 12 drives the ejector rod 13 to move towards the direction close to the overcurrent cutting unit 2, the first slope 21 of the unidirectional boss 20 abuts against the second slope 22 of the stop pin 17 and generates relative sliding, at this time, until the first slope 21 and the second slope 22 are separated from the ejector rod 13, the surface of the stop pin 17 abuts against the second slope 18 is reset, the reset spring under the action of the second boss 18 is further guaranteed, the vent hole is prevented from being blocked by the error, and the plugging of the ejector rod 13 is further prevented from being blocked by the vent hole 9.
The reset unit 3 comprises a reset seat 23 which is detachably arranged on the pressure regulating shell 1, a reset rod 24 and a third spring 25 are arranged on the reset seat 23, the top end of the reset rod 24 is a pressing end, the third spring 25 is sleeved on the reset rod 24, one end of the third spring 25 acts on the reset seat 23, the other end acts on the pressing end of the top of the reset rod 24, and the reset rod 24 can pass through the reset seat 23 to be in butt joint with the plugging ball 9.
In this embodiment, the reset unit 3 is that a reset seat 23 is mounted on the pressure regulating shell 1, a reset rod 24 on the reset seat 23 can pass through the reset seat 23 to be in contact with the plugging ball 9 of the overcurrent cutoff unit 2, the top end of the reset rod 24 is a pressing end, and a third spring 25 is sleeved on the reset rod 24, so that the reset rod 24 is in a state of being far away from the overcurrent cutoff unit 2 when not in use.
The pressure regulating assembly comprises a second diaphragm 26, an adjusting rod 27, a fourth spring 28 and a valve core rod 29, wherein the second diaphragm 26 is arranged in the second chamber 6 and forms an adjusting chamber with the pressure regulating shell 1, the adjusting rod 27 is arranged on the second diaphragm 26, the fourth spring 28 is arranged in the adjusting chamber, one end of the valve core rod 29 is hinged with the adjusting rod 27, the middle part of the valve core rod 29 is hinged with the pressure regulating shell 1, the other end of the valve core rod 29 is matched with the flow cross section of the second chamber 6, and the adjusting rod 27 drives the valve core rod 29 to adjust the opening of the flow cross section of the second chamber 6.
In this embodiment, during normal use, the air volume is adjusted by the pressure adjusting assembly to realize pressure stabilization, specifically, the second diaphragm 26 is installed in the second chamber 6, the second diaphragm 26 encloses an adjusting chamber, the adjusting rod 27 is connected to the second diaphragm 26, the fourth spring 28 is installed in the adjusting chamber to adjust the deformation of the second diaphragm 26, the tail end of the adjusting rod 27 is hinged with the valve core rod 29, a connection point hinged with the pressure adjusting shell 1 is also provided in the middle area of the valve core rod 29, then the valve core rod 29 can realize a lever under the driving of the adjusting rod 27, and the end of the valve core rod 29 can be matched with the flow section of the second chamber 6 to control the opening degree. When the gas-saving type air conditioner works, gas is supplied to the lower part of the second diaphragm 26, the pressure is applied to the second diaphragm 26, the elasticity of the fourth spring 28 for the second diaphragm 26 is gradually balanced, the second diaphragm 26 is also deformed to different degrees, the regulating rod 27 is driven, the regulating rod 27 drives the valve core rod 29 to control the opening of the gas passing section, and the function of regulating the gas flow and stabilizing the pressure is realized.
The pressure regulating assembly further comprises a cock 30 and a protective cap 31, the cock 30 is adjustably arranged on the pressure regulating shell 1, the cock 30 is abutted with the fourth spring 28, and the protective cap 31 is arranged outside the cock 30.
In this embodiment, a cock 30 is further installed on the pressure regulating housing 1, the cock 30 abuts against the fourth spring 28 located in the regulating chamber, the cock 30 can be rotated to adjust the screwing depth, the cock 30 can be adjusted to adjust the pressure of the fourth spring 28 to the second diaphragm 26, and meanwhile, a protective cap 31 is provided on the cock 30 to avoid the change of the already set spring pressure.
A filter screen 32 is also disposed in the first chamber 5.
In this embodiment, a filter screen 32 is further disposed in the first chamber 5 to keep the inside of the pressure regulating shell 1 clean.
The inlet end of the pressure regulating shell 1 is provided with a sealing ring 33 and a hand wheel lock catch 34, the sealing ring 33 is arranged at the end part of the inlet end of the pressure regulating shell 1, the hand wheel lock catch 34 is sleeved at the inlet end of the pressure regulating shell 1, the inlet end of the pressure regulating shell 1 is provided with a flange 35, the hand wheel lock catch 34 is abutted to the flange 35, the outlet end of the pressure regulating shell 1 is an inserting end, and the outer surface of the inserting end is of a concave-convex structure.
In this embodiment, the pressure regulating shell 1 is provided with the seal section in entrance point one side, and sealing washer 33 is in the tip position of entrance point, still is provided with flange 35 at the outside lateral wall of entrance point, and hand wheel hasp 34 cover is established in the entrance point department of pressure regulating shell 1, and hand wheel hasp 34 is the external screw thread, and the tip butt is on flange 35, and during the installation, rotatory hand wheel hasp 34 makes its threaded connection on the pipe, promotes its flange 35, compresses tightly sealing washer 33 and realizes sealedly, and the exit end of pressure regulating shell 1 can be the grafting end, and the surface is concave-convex structure, is convenient for pass through the hasp fixed line.
The pressure regulating shell 1 is also provided with a pressure gauge 36.
In this embodiment, the pressure gauge 36 is mounted on the pressure regulating housing 1, so that the pressure can be easily observed and safety inspection can be performed.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
1. The gas pressure regulating device comprises a pressure regulating shell (1) with a containing cavity, a pressure regulating component and an overcurrent blocking component, wherein the pressure regulating component and the overcurrent blocking component are arranged in the pressure regulating shell (1), and the overcurrent blocking component and the pressure regulating component are sequentially arranged along the airflow direction, and the gas pressure regulating device is characterized in that the overcurrent blocking component comprises an overcurrent blocking unit (2), a reset unit (3) and an error-preventing unit (4), the overcurrent blocking unit (2) is arranged between the reset unit (3) and the error-preventing unit (4), the overcurrent blocking unit (2) divides the containing cavity into a first cavity (5) and a second cavity (6) along the airflow direction, the error-preventing unit (4) is communicated with the second cavity (6), and when the pressure of the first cavity (5) is higher than that of the second cavity (6), the overcurrent blocking unit (2) is closed and the error-preventing unit (4) is locked to prevent the overcurrent blocking unit (2) from being opened;
The overcurrent cutting unit (2) comprises a first baffle (7), a second baffle (8) and a plugging ball (9) which are arranged in the accommodating cavity, wherein vent holes (10) are formed in the first baffle (7) and the second baffle (8), the plugging ball (9) is positioned between the first baffle (7) and the second baffle (8), and the diameter of the vent holes (10) is smaller than that of the plugging ball (9);
the anti-misoperation unit (4) comprises an installation shell (11) which is detachably arranged on the pressure regulating shell (1), a first membrane (12), a push rod (13) and a first spring (14) are arranged in the installation shell (11), the first membrane (12) divides the installation shell (11) into a third chamber (15) and a fourth chamber (16), the third chamber (15) is close to the overcurrent cutting unit (2), the third chamber (15) is communicated with the second chamber (6), the push rod (13) passes through the first membrane (12), and the first spring (14) is sleeved on the push rod (13) and is positioned in the fourth chamber (16);
When the leakage occurs and the overcurrent is caused, the first chamber (5) triggers the overcurrent cutting unit (2) due to the rising of the overcurrent pressure, so that the blocking ball (9) blocks the vent hole (10), the air pressure in the second chamber (6) is reduced due to the falling of the leakage, the air pressure in the third chamber (15) communicated with the second chamber (6) is reduced, the force of the first spring (14) is larger than the pressure of the third chamber (15) on the first diaphragm (12), the first diaphragm (12) deforms towards the third chamber (15), and the ejector rod (13) is driven to move towards the direction close to the overcurrent cutting unit (2) until the ejector rod (13) abuts against the blocking ball (9);
The anti-misoperation unit (4) further comprises a limiting pin (17) and a second spring (18) which are arranged on the inner wall of the fourth cavity (16), a limiting boss (19) is arranged on the limiting pin (17), the second spring (18) is sleeved on the limiting pin (17), one end of the second spring (18) acts on the inner wall of the fourth cavity (16), the other end of the second spring acts on the limiting boss (19), a one-way boss (20) is arranged on the ejector rod (13), the upper end face of the one-way boss (20) is a first inclined face (21), one end of the limiting pin (17) extends out of the mounting shell (11) and is movable, the other end of the limiting pin (17) is in butt joint with the ejector rod (13), the end of the limiting pin (17) is a second inclined face (22), and the second inclined face (22) is matched with the first inclined face (21).
2. The overcurrent blocking safety gas pressure regulating device according to claim 1, wherein the reset unit (3) comprises a reset seat (23) detachably arranged on the pressure regulating shell (1), a reset rod (24) and a third spring (25) are arranged on the reset seat (23), the top end of the reset rod (24) is a pressing end, the third spring (25) is sleeved on the reset rod (24), one end of the third spring (25) acts on the reset seat (23), the other end acts on the pressing end at the top of the reset rod (24), and the reset rod (24) can pass through the reset seat (23) to be in butt joint with the plugging ball (9).
3. The overcurrent blocking safety gas pressure regulating device according to claim 1, wherein the pressure regulating assembly comprises a second diaphragm (26), an adjusting rod (27), a fourth spring (28) and a valve core rod (29), the second diaphragm (26) is arranged in the second chamber (6) and forms an adjusting chamber with the pressure regulating shell (1), the adjusting rod (27) is arranged on the second diaphragm (26), the fourth spring (28) is arranged in the adjusting chamber, one end of the valve core rod (29) is hinged with the adjusting rod (27), the middle part of the valve core rod (29) is hinged with the pressure regulating shell (1), the other end of the valve core rod (29) is matched with the flow cross section of the second chamber (6), and the adjusting rod (27) drives the valve core rod (29) to adjust the opening of the flow cross section of the second chamber (6).
4. A safety gas pressure regulating device with overcurrent interruption according to claim 3, characterized in that the pressure regulating assembly further comprises a tap (30) and a protective cap (31), the tap (30) being adjustably arranged on the pressure regulating housing (1), the tap (30) being in abutment with the fourth spring (28), the tap (30) being externally provided with the protective cap (31).
5. The overcurrent blocking safety gas pressure regulating device according to claim 1, wherein a filter screen (32) is further arranged in the first chamber (5).
6. The overcurrent blocking safety gas pressure regulating device according to claim 1, wherein the inlet end of the pressure regulating shell (1) is provided with a sealing ring (33) and a hand wheel lock catch (34), the sealing ring (33) is arranged at the end part of the inlet end of the pressure regulating shell (1), the hand wheel lock catch (34) is sleeved at the inlet end of the pressure regulating shell (1), the inlet end of the pressure regulating shell (1) is provided with a flange (35), the hand wheel lock catch (34) is abutted on the flange (35), the outlet end of the pressure regulating shell (1) is an inserting end, and the outer surface of the inserting end is of a concave-convex structure.
7. The overcurrent blocking safety gas pressure regulating device according to claim 1, wherein a pressure gauge (36) is further provided on the pressure regulating housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410452636.3A CN118049605B (en) | 2024-04-16 | 2024-04-16 | Safe gas pressure regulating equipment for preventing flow from passing through |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410452636.3A CN118049605B (en) | 2024-04-16 | 2024-04-16 | Safe gas pressure regulating equipment for preventing flow from passing through |
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| CN118049605B true CN118049605B (en) | 2024-06-11 |
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| CN202410452636.3A Active CN118049605B (en) | 2024-04-16 | 2024-04-16 | Safe gas pressure regulating equipment for preventing flow from passing through |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN118623221B (en) * | 2024-08-14 | 2024-10-11 | 河北兴润能源装备有限公司 | Pressure-regulating compensation type gas pressure regulator |
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|---|---|---|---|---|
| CN2239552Y (en) * | 1995-12-25 | 1996-11-06 | 冯生才 | Pipeline middle pressure gas pressure regulator |
| JPH10220598A (en) * | 1997-01-31 | 1998-08-21 | Toyota Motor Corp | Hydraulic sealing structure |
| EP1074772A1 (en) * | 1999-08-04 | 2001-02-07 | FERRERO RUBINETTERIE SNC DI RICCARDO FERRERO & C. | Ball valve with key-operated lock |
| CN114776877A (en) * | 2022-04-24 | 2022-07-22 | 陕西大唐燃气安全科技股份有限公司 | Gas self-closing valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8038035B2 (en) * | 2007-10-08 | 2011-10-18 | Blitz U.S.A., Inc. | Fuel can spout |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2239552Y (en) * | 1995-12-25 | 1996-11-06 | 冯生才 | Pipeline middle pressure gas pressure regulator |
| JPH10220598A (en) * | 1997-01-31 | 1998-08-21 | Toyota Motor Corp | Hydraulic sealing structure |
| EP1074772A1 (en) * | 1999-08-04 | 2001-02-07 | FERRERO RUBINETTERIE SNC DI RICCARDO FERRERO & C. | Ball valve with key-operated lock |
| CN114776877A (en) * | 2022-04-24 | 2022-07-22 | 陕西大唐燃气安全科技股份有限公司 | Gas self-closing valve |
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| CN118049605A (en) | 2024-05-17 |
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