CN111853538A - Bottled liquefied petroleum gas pressure regulator with flameout protection function - Google Patents
Bottled liquefied petroleum gas pressure regulator with flameout protection function Download PDFInfo
- Publication number
- CN111853538A CN111853538A CN202010853149.XA CN202010853149A CN111853538A CN 111853538 A CN111853538 A CN 111853538A CN 202010853149 A CN202010853149 A CN 202010853149A CN 111853538 A CN111853538 A CN 111853538A
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- contact
- pressure regulator
- pressure regulating
- valve
- valve body
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
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- 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
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
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- 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
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/12—Arrangements or mounting of devices for preventing or minimising the effect of explosion ; Other safety measures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0332—Safety valves or pressure relief valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2221/00—Handled fluid, in particular type of fluid
- F17C2221/03—Mixtures
- F17C2221/032—Hydrocarbons
- F17C2221/033—Methane, e.g. natural gas, CNG, LNG, GNL, GNC, PLNG
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2223/00—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel
- F17C2223/01—Handled fluid before transfer, i.e. state of fluid when stored in the vessel or before transfer from the vessel characterised by the phase
- F17C2223/0146—Two-phase
- F17C2223/0153—Liquefied gas, e.g. LPG, GPL
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2260/00—Purposes of gas storage and gas handling
- F17C2260/04—Reducing risks and environmental impact
- F17C2260/042—Reducing risk of explosion
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a bottled liquefied petroleum gas pressure regulator with a flameout protection function, which comprises a pressure regulator, a furnace end and an electric control system, wherein the pressure regulator comprises a valve body, a valve cover arranged on the valve body, an air inlet channel arranged on one side of the valve body and an air outlet channel arranged on the other side of the valve body, and is communicated with the furnace end through the air outlet channel; the furnace head is provided with a thermocouple, and the furnace head is characterized in that a protective shell and a protective cover are arranged on the valve cover, a supporting plate is arranged in the protective shell, an electromagnet is arranged on the supporting plate, the electromagnet is used for controlling the pressure regulating device, and the furnace head is provided with the thermocouple, so that the furnace head has the beneficial: the functions of the pressure regulator and the flameout protection device are combined, so that the high-efficiency safe utilization of the fuel gas can be fully ensured. The electromagnet is arranged on the pressure regulator, so that the pressure regulator can be closed under the condition of accidental flameout, and a gas passage is cut off.
Description
Technical Field
The invention relates to the technical field of pressure regulators, in particular to a pressure regulator for bottled liquefied petroleum gas with a flameout protection function.
Background
With the wide use of gas, gas cookers have come to ordinary people's lives, and the safe use of gas cookers is increasingly emphasized. At present, the gas is mainly used in two forms of pipeline transportation and liquefied gas steel cylinder, and in order to ensure the normal use of bottled liquefied gas, the liquefied gas steel cylinder must be equipped with a pressure regulator. On the other hand, GB16410-2007 "domestic gas range" enforces the regulations: all types of household gas cookers should be provided with a flameout protection device. The pressure regulator can adjust gas pressure, guarantees the normal burning of gas. The flameout protection device can prevent the gas cooker from causing safety accidents such as poisoning, explosion and the like due to gas leakage caused by accidental flameout. At present, the voltage regulating function and the flameout protection function are separately arranged and respectively completed by different devices, so that the economic cost is high, the installation is complicated, the reliability of the device is not high, and great inconvenience is brought to later-stage management and maintenance. The invention aims at the problems to design a novel pressure regulator for bottled liquefied petroleum gas, so that the novel pressure regulator has the pressure regulating function and the flameout protection function at the same time.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a bottled liquefied petroleum gas pressure regulator with a flameout protection function, which is reasonable in design.
The technical scheme of the invention is as follows:
a pressure regulator with flameout protection function for bottled liquefied petroleum gas is characterized by comprising a pressure regulator, a furnace end and an electric control system, wherein the pressure regulator comprises a valve body, a valve cover arranged on the valve body, an air inlet channel arranged on one side of the valve body and an air outlet channel arranged on the other side of the valve body, and is communicated with the furnace end through the air outlet channel; the novel gas stove is characterized in that a protective shell and a protective cover are arranged on the valve cover, a supporting plate is arranged in the protective shell, an electromagnet is arranged on the supporting plate, the electromagnet is used for controlling the pressure regulating device, a thermocouple is arranged on the stove head, the thermocouple and the electromagnet are connected through an electric control system, and the electromagnet is controlled through the electric control system, so that the pressure regulating device can close the gas inlet channel under the accidental flameout condition.
The pressure regulator with flameout protection function for the bottled liquefied petroleum gas is characterized in that the pressure regulating device comprises a film pressing plate, a locking nut, a pressure regulating spring, a rubber film, a lever, a pressure regulating pull rod and a valve pad; the valve gap on be equipped with the breather hole, rubber film sets up inside the valve body to divide into cavity and lower cavity with the voltage regulator inside through rubber film, the film clamp plate sets up at the rubber film top, the pressure regulating spring is located between film clamp plate and the valve gap, the pressure regulating pull rod passes rubber film and film clamp plate to fix on the film clamp plate through lock nut, the lever passes through the locating pin activity and sets up on the positioning seat, and lever one end links to each other bottom the pressure regulating pull rod, and the other end is equipped with the valve pad to control the aperture of the valve port of intake duct through the valve pad.
The bottled liquefied petroleum gas pressure regulator with flameout protection function is characterized in that the electromagnet is arranged right above the pressure regulating pull rod, and after the electromagnet is electrified, the upper part of the pressure regulating pull rod is attracted with the electromagnet to close the air inlet channel.
The bottled liquefied petroleum gas pressure regulator with the flameout protection function is characterized in that the electric control system comprises a single-pole double-throw switch, a power supply A, an electromagnetic relay, an indicator light and a power supply B, wherein two contacts including a contact C and a contact D are arranged at one end of the single-pole double-throw switch; contact A links to each other with contact E, contact B links to each other with power B one end, the power B other end links to each other with contact F, and pilot lamp one end links to each other with contact G, and the pilot lamp other end links to each other with power B one end, contact D links to each other with power A one end, and the power A other end links to each other with electromagnetic relay's coil to through be connected to the single-pole double-throw behind the coil on the switch.
The pressure regulator with flameout protection function for the bottled liquefied petroleum gas is characterized in that a hand wheel, an air inlet sealing ring and a filter screen are arranged on the air inlet channel.
The pressure regulator with flameout protection function for the bottled liquefied petroleum gas is characterized in that the gas outlet channel is provided with a gas outlet threaded joint and a gas outlet sealing ring, and the gas outlet threaded joint can be connected with a metal hose.
Compared with the prior art, the invention has the beneficial effects that:
1) the functions of the pressure regulator and the flameout protection device are combined, so that the high-efficiency safe utilization of the fuel gas can be fully ensured.
2) The electromagnet is arranged on the pressure regulator, so that the pressure regulator can be closed under the condition of unexpected flameout, and a gas passage is cut off; can prevent the occurrence of safety accidents of poisoning, fire, explosion and the like caused by accidental flameout of the gas cooker.
4) The invention has simple structure, accurate voltage regulation and high safety and reliability.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a voltage regulator used in the present invention;
fig. 2 is a schematic cross-sectional structural view of a voltage regulator employed in the present invention;
FIG. 3 is a schematic diagram of a control circuit employed in the present invention;
in the figure: 1-a voltage regulator; 11-an air inlet channel; 111-hand wheel; 112-gas inlet sealing ring; 113-a filter screen; 12-a valve body; 121-a lower chamber; 122-valve port; 131-a pressure regulating spring; 132-a rubber film; 133-a film platen; 134-lock nut; 135 pressure regulating pull rods; 136-a lever; 137-valve pad; 138-positioning seats; 14-a valve cover; 141-a protective cover; 142-a support plate; 143-protective shell; 144-a breathing hole; 145-upper chamber; 15-an electromagnet; 16-an air outlet channel; 161-air outlet screwed joint; 162-outlet seal ring; 2-furnace end; 3-a control circuit; 31-single pole double throw switch; 32-power supply A, 33-thermocouple; 34-an electromagnetic relay; 4-a working circuit; 41-indicator light; 42-Power supply B.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
On the contrary, the invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.
As shown in fig. 1-3, a pressure regulator for bottled liquefied petroleum gas with flameout protection function comprises a pressure regulator 1, a burner 2, a control circuit 3 and a working circuit 4.
The pressure regulator 1 is composed of an air inlet 11, a valve body 12, a pressure regulating device, a valve cover 14, an electromagnet 15 and an air outlet 16.
Be equipped with hand wheel 111, air inlet sealing washer 112 and filter screen 113 on the intake duct 11, hand wheel 111 can be connected with the angle valve on the liquefied gas steel bottle, and air inlet sealing washer 112 is used for preventing that the gas from leaking from the angle valve junction, and filter screen 113 can filter gas impurity, prevents that impurity from getting into and makes its pressure regulating protection function inefficacy in the voltage regulator.
The valve body 12 and the valve cover 14 are connected by screws to form a pressure regulator chamber, and a pressure regulating device 13 is arranged in the valve body 12.
The pressure regulating device comprises a pressure regulating spring 131, a rubber film 132, a film pressing plate 133, a locking nut 134, a pressure regulating pull rod 135, a lever 136 and a valve pad 137. Rubber film 132 divides the regulator cavity into upper chamber 145 and lower chamber 121, pressure regulating pull rod 135 runs through upper chamber 145 and lower chamber 121. The film pressing plate 133 is positioned on the rubber film 132 and fixed by a lock nut 134. The pressure regulating spring 131 is located between the film pressing plate 133 and the bonnet 14. The rubber film 132 deforms under the combined action of pressure and spring force, drives the pressure-regulating pull rod 135 to move up and down, and enables the valve pad 122 to regulate gas pressure under the action of the lever 136.
The valve cover 14 is provided with a breathing hole 145 communicated with the outside atmosphere, the valve cover 14 is provided with a protective shell 143, the protective shell 143 is provided with a protective cover 141, a support plate 142 is arranged in the protective shell 143, and the electromagnet 15 is fixed on the support plate 142.
The air outlet channel 16 is connected with the burner 2, and the air outlet channel 16 is provided with an air outlet threaded connector 161 and an air outlet sealing ring 162, so that the metal hose can be prevented from being disengaged and gas can be prevented from leaking.
The electromagnet 15 can be powered on when the burner 2 is accidentally extinguished, and is attracted with the pressure regulating pull rod 135, and drives the pressure regulating pull rod 135 to move upwards in the attraction process, so that the valve pad 137 is tightly attached to the valve port 122, and the gas passage is cut off. The electromagnet 15 is controlled by the operating circuit 4.
The electric control system is composed of a control circuit 3 and a working circuit 4.
The operating circuit 4 is composed of an indicator lamp 41, a power supply B42, and a voltage regulator 1. Contact A of voltage regulator 1 links to each other with contact E, voltage regulator contact B links to each other with power B42. The other end of the power supply B42 is connected to the contact F. If contact E contacts contact F, a circuit is formed to energize electromagnet 15. The indicator light 41 is connected to the contact G at one end and the power supply B42 at the other end, and if the contact F contacts the contact G, a loop is formed to make the indicator light work normally. The operating circuit 4 is controlled by the control circuit 3.
The control circuit 3 includes a single-pole double-throw switch 31, a power supply a32, a thermocouple 33, and an electromagnetic relay 34. The single-pole double-throw switch 31 can be contacted with a contact C or D so as to switch on a power supply A32 or a thermocouple 33 to form a loop, and the electromagnetic relay 34 can be powered by the power supply A32 or the thermocouple 33.
The working process is as follows:
when the gas stove starts to work, the single-pole double-throw switch 31 is in contact with the contact D, the electromagnetic relay 34 is electrified, the contact F is in contact with the contact G under the action of magnetic force, the indicator lamp 41 is electrified to work normally, and the purpose of the contact with the contact D is to open the pressure regulating valve (when the gas stove is not burnt normally, a thermocouple cannot generate current, the electromagnetic relay cannot be electrified, the E is always in contact with the F, the electromagnet 15 is always electrified, and the pressure regulator is in a closed state). At this time, the gas range is ignited to normally burn the gas range burner 2, the thermocouple 33 is heated by the flame to generate thermoelectric force, and the thermoelectric force generates current in the loop. At this time, the single-pole double-throw switch is brought into contact with the contact C, and the electromagnetic relay 34 is energized to bring the contact F into contact with the contact G, so that the indicator lamp 41 operates normally. The electromagnet 15 in the voltage regulator 1 is in a non-electrified state, the electromagnet 15 can not act on the voltage regulating pull rod 135, and the voltage regulator 1 works normally. If the pressure in the lower chamber 121 is higher than the preset outlet pressure of the pressure regulator, the rubber film 132 protrudes upward to drive the pressure regulating pull rod 135 to move upward, and under the action of the lever 136, the valve pad 137 moves downward, the valve port 122 is gradually closed, so that the pressure in the air outlet channel 16 is gradually reduced and kept stable; if the pressure in the lower chamber 121 is lower than the preset outlet pressure of the pressure regulator, the rubber film 132 is recessed downward to drive the pressure regulating pull rod 135 to move downward, and under the action of the lever 136, the valve pad 137 moves upward, and the valve port 122 is opened gradually, so that the pressure in the air outlet channel 16 is increased gradually and reaches balance.
When the gas stove burner 2 is flamed out in an unexpected situation, the thermocouple 33 is gradually cooled due to flameless heating, and the current disappears. When the electromagnetic relay 34 is in a non-energized state, the contact F is in contact with the contact E, so that the electromagnet 15 in the voltage regulator 1 is energized, the electromagnet 15 generates a magnetic field under the action of the current of the power supply 5, and the voltage regulating pull rod 135 is attracted with the electromagnet 15 under the action of the magnetic force. The upward movement of the pressure regulating pull rod 135 drives the valve pad 137 to move downward. So that the valve pad 137 is tightly attached to the valve port 122, thereby cutting off the gas passage and achieving the purpose of flameout protection.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included therein.
Claims (6)
1. The bottled liquefied petroleum gas pressure regulator with the flameout protection function is characterized by comprising a pressure regulator (1), a furnace end (2) and an electric control system, wherein the pressure regulator (1) comprises a valve body (12), a valve cover (14) arranged on the valve body (12), an air inlet channel (11) arranged on one side of the valve body (12) and an air outlet channel (16) arranged on the other side of the valve body (12) and is communicated with the furnace end (2) through the air outlet channel (16), and a pressure regulating device is arranged in the valve body (12); be equipped with protective housing (143) and visor (141) on valve gap (14), be equipped with backup pad (142) in protective housing (143), be equipped with electro-magnet (15) on backup pad (142) to control the pressure regulating device through electro-magnet (15), be equipped with thermocouple (33) on furnace end (2), be connected through electrical system between thermocouple (33) and electro-magnet (15) to through electrical system control electro-magnet (15), make pressure regulating device close intake duct (11) under unexpected flame-out situation.
2. The bottled liquefied petroleum gas pressure regulator with flameout protection function according to claim 1, wherein the pressure regulating device comprises a film pressing plate (133), a locking nut (134), a pressure regulating spring (131), a rubber film (132), a lever (136), a pressure regulating pull rod (135) and a valve gasket (137); valve gap (14) on be equipped with breather hole (144), rubber film (132) set up inside valve body (12) to divide into cavity (145) and lower cavity (121) with the voltage regulator through rubber film (132), film clamp plate (133) set up at rubber film (132) top, pressure regulating spring (131) are located between film clamp plate (133) and valve gap (14), pressure regulating pull rod (135) pass rubber film (132) and film clamp plate (133) to fix on film clamp plate (133) through lock nut (134), lever (136) set up on positioning seat (138) through the locating pin activity, and lever (136) one end links to each other with pressure regulating pull rod (135) bottom, and the other end is equipped with valve pad (137) to control the aperture of valve port (122) of intake duct (11) through valve pad (137).
3. The bottled liquefied petroleum gas pressure regulator with flameout protection function according to claim 2, wherein the electromagnet (15) is arranged right above the pressure regulating pull rod (135), and after the electromagnet (15) is electrified, the upper part of the pressure regulating pull rod (135) is attracted with the electromagnet (15) to close the air inlet channel (11).
4. The bottled liquefied petroleum gas pressure regulator with flameout protection function according to claim 1, wherein the electronic control system comprises a single-pole double-throw switch (31), a power supply A (32), an electromagnetic relay (34), an indicator lamp (41) and a power supply B (42), one end of the single-pole double-throw switch (31) is provided with two contacts including a contact C and a contact D, the electromagnetic relay (34) is provided with three contacts including a contact E, a contact F and a contact G, and the electromagnet (15) of the pressure regulator (1) is provided with two contacts including a contact A and a contact B; contact A links to each other with contact E, contact B links to each other with power B (42) one end, the power B (42) other end links to each other with contact F, and pilot lamp (41) one end links to each other with contact G, and the pilot lamp (41) other end links to each other with power B (42) one end, contact D links to each other with power A (32) one end, and power A (32) other end links to each other with electromagnetic relay's (34) coil to through being connected to on single-pole double-throw switch (31) behind the coil.
5. The bottled liquefied petroleum gas pressure regulator with flameout protection function according to claim 1, wherein the air inlet duct (11) is provided with a hand wheel (111), an air inlet sealing ring (112) and a filter screen (113).
6. The pressure regulator with flameout protection function for bottled liquefied petroleum gas according to claim 1, wherein the air outlet channel (16) is provided with an air outlet threaded connector (161) and an air outlet sealing ring (162), and the air outlet threaded connector (161) can be connected with a metal hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010853149.XA CN111853538A (en) | 2020-08-22 | 2020-08-22 | Bottled liquefied petroleum gas pressure regulator with flameout protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010853149.XA CN111853538A (en) | 2020-08-22 | 2020-08-22 | Bottled liquefied petroleum gas pressure regulator with flameout protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111853538A true CN111853538A (en) | 2020-10-30 |
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ID=72969677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010853149.XA Pending CN111853538A (en) | 2020-08-22 | 2020-08-22 | Bottled liquefied petroleum gas pressure regulator with flameout protection function |
Country Status (1)
| Country | Link |
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| CN (1) | CN111853538A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877259A (en) * | 2022-05-12 | 2022-08-09 | 合肥市久环给排水燃气设备有限公司 | Gas pressure regulator capable of reducing fatigue damage |
-
2020
- 2020-08-22 CN CN202010853149.XA patent/CN111853538A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877259A (en) * | 2022-05-12 | 2022-08-09 | 合肥市久环给排水燃气设备有限公司 | Gas pressure regulator capable of reducing fatigue damage |
| CN114877259B (en) * | 2022-05-12 | 2023-10-27 | 合肥市久环给排水燃气设备有限公司 | Gas pressure regulator capable of reducing fatigue damage |
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