CN106641393B - Electric control gas valve and using method thereof - Google Patents
Electric control gas valve and using method thereof Download PDFInfo
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- CN106641393B CN106641393B CN201611142915.1A CN201611142915A CN106641393B CN 106641393 B CN106641393 B CN 106641393B CN 201611142915 A CN201611142915 A CN 201611142915A CN 106641393 B CN106641393 B CN 106641393B
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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
- F16K31/0644—One-way valve
Abstract
An electric control gas valve comprises a valve body, an electromagnet and a control box, wherein the valve body is divided into a front valve body (1) and a rear valve body (2), an air outlet channel (3) is arranged on the front valve body (1), an air inlet channel (4) is arranged on the rear valve body (2), the electromagnet comprises a first electromagnet (5) and a second electromagnet (6), one end of a first movable iron core (7) is attached and sealed with the end part of a first valve port (10), one end of a second movable iron core (8) is attached and sealed with the end part of a second valve port (11), the first valve port (10) corresponds to a high fire position, and the second valve port (11) corresponds to a low fire position; the first electromagnet (5) and the second electromagnet (6) are electrically connected with the control box; compared with the prior art, the invention has the characteristics of simple structure, convenient use, better use flexibility, longer service life, better use stability and better use safety.
Description
Technical Field
The invention relates to a gas valve, in particular to an electric control gas valve and a using method thereof.
Background
Household gas cookers are quite popular in today's society. With the increase of user demands, the automatic constant temperature control and the dry burning prevention safety protection of the gas stove are more and more concerned and valued by the industry.
For example, chinese patent publication No. CN 2826204Y, entitled intelligent safety gas cooker, discloses: an intelligent safe gas cooker comprises a cooker body, a cooking range, an air inlet pipe, an assembly switch and a central control panel, wherein the cooking range is arranged on the cooker body. The gas inlet pipe is connected with an assembly switch, the assembly switch is connected with a gas channel of the cooking range through an electromagnetic valve, an ignition needle and a temperature sensor are arranged on the cooking range, the ignition needle is connected with an electric pulse device, and the central control panel is connected with the electromagnetic valve, the temperature sensor and a control panel. The electromagnetic valve is an electromagnetic valve capable of adjusting gas flow, and comprises a large flow point for normal big fire cooking and a small flow point for small fire cooking.
The publication number is CN101275754A, the name is Chinese invention patent application publication of anti-dry burning fire control gas stove: a dry-burning-proof fire-control gas stove comprises a burner, a gas passage, a gas valve, a power supply, a pressure switch, a temperature sensor, a control device, gas supply equipment and a control switch arranged on the gas supply equipment. The gas valve, the power supply and the pressure switch form a closed loop, the temperature sensor, the control device, the power supply and the control switch form a control feedback loop, and the temperature sensor and the pressure switch are arranged at the center of the combustion ring of the burner. The scheme can control the flame size on the gas stove and intelligently reduce or cut off the gas supply of the gas stove.
Although the two electromagnetic valves are used in parallel, the two electromagnetic valves are independent and can be separately and independently used, the two electromagnetic valves are small flow points, the two electromagnetic valves are opened at the large flow points, the whole volume is large, the connection part is more, the leakage condition easily occurs at the connection part in the using process, and the heating speed is low.
The publication number is CN 205579657U, which is named as Chinese invention patent publication of a constant temperature control gas stove: a thermostatically controlled gas range comprising: the burner comprises a burner, an air supply pipeline connected to the burner and an electromagnetic valve arranged on the air supply pipeline; the electromagnetic valve is characterized in that an air leakage port and an opening are arranged on the electromagnetic valve; when the electromagnetic valve is closed, the electromagnetic valve supplies air through the air leakage port to form a small-flow air supply structure; when the electromagnetic valve is in an open state, the electromagnetic valve supplies air together with the air leakage port through the opening to form a large-flow air supply structure. However, although only one electromagnetic valve is used, the energy consumption is low, because the air leakage port belongs to a normal opening, once the gas leakage condition of the cooker occurs, the electromagnetic valve cannot completely close the pipeline, so that safety accidents are easy to happen, and the use safety is poor.
Therefore, although the prior art can solve the problems of fire regulation and constant temperature control of some gas stoves, the prior art has the defects of complex structure and inconvenient control; or there is a problem of poor safety.
Disclosure of Invention
Aiming at the problems, the invention provides the electric control gas valve which has the advantages of simple structure, convenient use, longer service life, better use stability and better use safety.
The technical scheme for solving the problems is as follows: the electric control gas valve comprises a valve body, an electromagnet and a control box, wherein the valve body is divided into a front valve body and a rear valve body, an air outlet channel is arranged on the front valve body, an air inlet channel is arranged on the rear valve body, the electromagnet comprises a first electromagnet and a second electromagnet, a first movable iron core and a second movable iron core are respectively arranged on the first electromagnet and the second electromagnet, and the first electromagnet and the second electromagnet are both arranged on the rear valve body; the front valve body is connected with the rear valve body in a sealing manner, and the end face of one end, connected with the front valve body, of the rear valve body is provided with an inner recess which is communicated with the air inlet channel; a first valve port and a second valve port are arranged in the inner recess, a first connecting port and a second connecting port are respectively arranged on the positions, opposite to the first valve port and the second valve port, on the bottom surface of the inner recess, the first connecting port and the second connecting port respectively correspond to a first electromagnet and a second electromagnet, one end of a first movable iron core is positioned in the first connecting port, and one end of a second movable iron core is positioned in the second connecting port; one end of the first movable iron core is in fit sealing with the end part of the first valve port, one end of the second movable iron core is in fit sealing with the end part of the second valve port, the first valve port corresponds to a high fire level, and the second valve port corresponds to a low fire level; a first hole and a second hole which are respectively corresponding to the first valve port and the second valve port are arranged on the end face of one end, connected with the rear valve body, of the front valve body, one end of the first hole is communicated with one end, far away from the first movable iron core, of the first valve port, one end of the second hole is communicated with one end, far away from the second movable iron core, of the second valve port, and the other end of the first hole and the other end of the second hole are communicated with the air outlet channel; the first electromagnet and the second electromagnet are electrically connected with the control box.
As an improvement, the first electromagnet and the second electromagnet are both polytetrafluoroethylene packaged electromagnets; the electromagnet with the structure has good sealing performance and high-temperature resistance, so that the valve body has good oil stain resistance and high-temperature resistance.
As a further improvement, sealing rings are arranged between one end of the first valve port, which is far away from the first movable iron core, and one end of the second valve port, which is far away from the second movable iron core, and the front valve body, the inner diameters of the two sealing rings are respectively larger than the aperture of the first hole and the aperture of the second hole, which correspond to the first hole, respectively, and the axes of the two sealing rings are respectively on the same straight line with the axes of the first hole and the second hole, which correspond to the first hole, respectively; after the sealing ring is arranged, the gas at the concave part is less prone to leaking into the first hole or the second hole, so that the use stability and the use safety of the gas-liquid separator are guaranteed, the machining precision of the end faces of the front valve body and the rear valve body can be reduced, and the production cost is reduced.
As a still further improvement, the air inlet channel is positioned between the first connecting port and the second connecting port, and the axis of the air inlet channel is perpendicular to the axis of the first hole; after the arrangement, the air inlet channel and the air outlet channel are mutually vertical, so that the overall volume of the valve body can be reduced, the occupied space is reduced, and the installation and the maintenance of the valve are convenient.
As a further improvement, the end part of the first movable iron core and the end part of the second movable iron core are both provided with valve port pads for improving the sealing effect; the peripheral surface of one end of the first valve port close to the first movable iron core and the peripheral surface of one end of the second valve port close to the second movable iron core are both conical surfaces; after the arrangement, the sealing effect at the valve port is better, the leakage is less prone to occurring, and the use reliability and the use safety of the invention can be further improved.
As a further improvement, the end part of the first movable iron core and the end part of the second movable iron core are provided with a valve port pad, and the valve port pads are bonded in the grooves; after the arrangement, the connection strength of the valve port pad can be improved, and the valve port is more tightly coated by the valve port pad under the extrusion effect of the inner wall of the groove, so that the sealing effect at the valve port can be further improved, the leakage is less prone to occurring, and the use reliability and the use safety of the valve are higher.
As a further improvement, a first valve seat and a second valve seat are respectively arranged at the first connecting port and the second connecting port, a first central hole and a second central hole are respectively arranged on the first valve seat and the second valve seat, one end of the first movable iron core is positioned in the first central hole, and one end of the second movable iron core is positioned in the second central hole; reset springs are arranged in the first central hole and the second central hole, and when the reset springs are in a free state, the first movable iron core and the second movable iron core are respectively attached and sealed with the first valve port and the second valve port; after the arrangement, the valve seat not only can play a role in damping the work of the electromagnet, but also can play a role in a sealing gasket, and can effectively prevent the leakage between the electromagnet and the connecting port, thereby ensuring the use reliability and the use safety of the electromagnetic valve.
As a further improvement, a protrusion is arranged on the outer peripheral surface of the first movable iron core at the end close to the first valve port, the first central hole is a step hole, the return spring is a conical spring, the return spring is sleeved on the first movable iron core, one end of the return spring is abutted against the protrusion, and the other end of the return spring is abutted against the step surface of the first central hole; the structure of the second movable iron core and the structure of the second central hole are respectively the same as the structure of the first movable iron core and the structure of the first central hole; after the arrangement, the elastic deformation of the conical spring is large, and the volume of the conical spring is small after the conical spring is contracted, so that the volume of the rear valve body can be effectively reduced, the use reliability is ensured, and the production cost is greatly reduced.
As a further improvement, the front valve body is connected with the rear valve body through a bolt, and a sealing gasket is arranged between the front valve body and the rear valve body; after the sealing gasket is arranged, on the premise of ensuring the using effect, the processing precision of the end faces of the front valve body and the rear valve body can be reduced, so that the production cost is reduced.
Another object of the invention is: the control method for the electric control gas valve comprises the following steps: 1) setting a heat preservation temperature; 2) after the ignition device is started, the first electromagnet is electrified, the first valve port is opened, high-fire-level gas is output at the moment, and pulse ignition is finished (the pulse igniter ignites for 5-15 seconds, a thermocouple on a stove detects that the temperature of a hearth rises, the temperature of the hearth is normal, and if the thermocouple does not detect that the temperature rises, the first valve port is closed automatically); 3) when the temperature rises to + 3-7 ℃ of the set temperature (the heat preservation temperature can be adjusted at any time in the working process), the second electromagnet is electrified, the second valve port is opened, after 1-4 seconds, the first electromagnet is powered off, and the first valve port is closed; 4) when the temperature is reduced to the set temperature of-3-7 ℃, the first electromagnet is electrified again, the first valve port is opened, and after 1-4 seconds, the second electromagnet is powered off, and the second valve port is closed; and repeating the step 3) and the step 4) in the way to realize heat preservation.
After the structure and the method are adopted, compared with the prior art, the valve body is divided into the front valve body and the rear valve body, so that the two electromagnets can be directly arranged in one valve, all the channels are arranged in the valve body, on the premise that the structure in the valve body is relatively complex, the processing, the assembly and the maintenance are simpler and more convenient, the space occupied by the valve body is greatly reduced, the production efficiency and the yield are higher, and the production cost is greatly reduced; the channels are all arranged in the valve body, so that the use effect is ensured, and the leakage probability is reduced, thereby improving the use stability and the use safety and prolonging the service life of the valve body; when the air inlet pipe is installed, the air inlet pipe and the air outlet pipe are not needed to be installed, and the air inlet pipe and the air outlet pipe are connected at two ends respectively, so that the air inlet pipe and the air outlet pipe are convenient to use; and in the use, if need the super big fire when stir-fry, all open first electro-magnet and second electro-magnet through the control box to realize super big fire, use the flexibility also better. Therefore, the invention has the characteristics of simple structure, convenient use, better use flexibility, longer service life, better use stability and better use safety.
Drawings
Fig. 1 is a schematic structural diagram of an electrically controlled gas valve of the present invention.
Fig. 2 is a partial cross-sectional view of the electrically controlled gas valve of the present invention.
As shown in the figure: 1. the valve comprises a front valve body, a rear valve body.
Detailed Description
The invention is further described with reference to the following drawings and detailed description.
As shown in fig. 1 and 2, an electric control gas valve comprises a valve body, an electromagnet and a control box, wherein the control box can be combined with a control box of a stove for use, the valve body is divided into a front valve body 1 and a rear valve body 2, an air outlet channel 3 is arranged on the front valve body 1, an air inlet channel 4 is arranged on the rear valve body 2, the electromagnet comprises a first electromagnet 5 and a second electromagnet 6, a first movable iron core 7 and a second movable iron core 8 are respectively arranged on the first electromagnet 5 and the second electromagnet 6, and the first electromagnet 5 and the second electromagnet 6 are both arranged on the rear valve body 2; the front valve body 1 is hermetically connected with the rear valve body 2, an inner recess 9 is arranged on the end face of one end, connected with the front valve body 1, of the rear valve body 2, and the inner recess 9 is communicated with the air inlet channel 4; a first valve port 10 and a second valve port 11 are arranged in the inner recess 9, a first connecting port 12 and a second connecting port 13 are respectively arranged on the positions, opposite to the first valve port 10 and the second valve port 11, on the bottom surface of the inner recess 9, the first connecting port 12 and the second connecting port 13 respectively correspond to the first electromagnet 5 and the second electromagnet 6, one end of the first movable iron core 7 is positioned in the first connecting port 12, and one end of the second movable iron core 8 is positioned in the second connecting port 13; one end of the first movable iron core 7 is in fit sealing with the end part of the first valve port 10, one end of the second movable iron core 8 is in fit sealing with the end part of the second valve port 11, the first valve port 10 corresponds to a high fire level, and the second valve port 11 corresponds to a low fire level; a first hole 14 and a second hole 15 which correspond to a first valve port 10 and a second valve port 11 respectively are arranged on the end face of one end of the front valve body 1 connected with the rear valve body 2, the axis of the first hole 14 and the axis of the second hole 15 are both parallel to the axis of the air outlet channel 3, one end of the first hole 14 is communicated with one end of the first valve port 10 far away from the first movable iron core 7, one end of the second hole 15 is communicated with one end of the second valve port 11 far away from the second movable iron core 8, the other end of the first hole 14 and the other end of the second hole 15 are both communicated with the air outlet channel 3 through a communication channel, the axis of the first hole 14 and the axis of the second hole 15 are both vertical to the axis of the communication channel, after the arrangement, a counter bore can be changed into the communication channel, and the opening of the communication channel on, the processing of the communication channel is simpler and more convenient, the production efficiency can be improved, and the production cost can be reduced; the first electromagnet 5 and the second electromagnet 6 are both electrically connected with the control box. The inner diameter of the first connection port 12 and the inner diameter of the second connection port 13 are respectively larger than the outer diameter of the first valve port 10 and the outer diameter of the second valve port 11, so that after the arrangement, one end of the first valve port 10 and one end of the second valve port 11 can be respectively positioned in the first connection port 12 and the second connection port 13, and the volume of the rear valve body 2 can be greatly reduced.
The first electromagnet 5 and the second electromagnet 6 are both polytetrafluoroethylene packaged electromagnets.
The intake passage 4 is located at a position between the first connection port 12 and the second connection port 13, and the axis of the intake passage 4 is perpendicular to the axis of the first hole 14.
The end part of the first movable iron core 7 and the end part of the second movable iron core 8 are both provided with valve port pads 17 for improving the sealing effect; the peripheral surface of the first valve port 10 near the first movable iron core 7 and the peripheral surface of the second valve port 11 near the second movable iron core 8 are both conical surfaces.
The end part of one end of the valve pad 17 arranged on the first movable iron core 7 and the end part of one end of the valve pad 17 arranged on the second movable iron core 8 are both provided with grooves 18, and the valve pad 17 is bonded in the grooves 18.
A first valve seat 19 and a second valve seat 20 are respectively arranged at the first connecting port 12 and the second connecting port 13, a first central hole 21 and a second central hole 22 are respectively arranged on the first valve seat 19 and the second valve seat 20, one end of the first movable iron core 7 is positioned in the first central hole 21, and one end of the second movable iron core 8 is positioned in the second central hole 22; and return springs 23 are arranged in the first central hole 21 and the second central hole 22, and when the return springs 23 are in a free state, the first movable iron core 7 and the second movable iron core 8 are respectively attached and sealed with the first valve port 10 and the second valve port 11. An annular bulge is arranged at one end, close to the first electromagnet 5, of the first valve seat 19, the annular bulge axially extends to the position of the fixed iron core of the first electromagnet 5 and is connected with the fixed iron core of the first electromagnet 5, and a sealing ring is arranged between the outer peripheral surface of the fixed iron core of the first electromagnet 5 and the inner wall of the annular bulge for sealing, so that the valve is better in air tightness after the arrangement, the leakage of the electromagnet is not easy to occur in the use process, the use stability and the use safety of the whole valve are improved, and the service life of the valve body is prolonged; an annular indent is arranged at the end part of the fixed iron core of the first electromagnet 5 close to the first movable iron core 7, and a buffer pad is arranged in the annular indent and used for buffering the vibration of the first movable iron core 7 during working, so that the service life of the first movable iron core 7 is prolonged; the structure of the second valve seat 20 is the same as that of the first valve seat 19, and the first electromagnet 5 is the same as that of the second electromagnet 6, so that the warehousing cost can be reduced, and meanwhile, due to the fact that parts are universal, assembly of workers is facilitated, the situation of wrong assembly cannot occur, and the yield is improved.
A protrusion 24 is arranged on the outer peripheral surface of the first movable iron core 7 near one end of the first valve port 10, the first central hole 21 is a step hole, the return spring 23 is a conical spring, the return spring 23 is sleeved on the first movable iron core 7, one end of the return spring 23 abuts against the protrusion 24, and the other end of the return spring 23 abuts against the step surface of the first central hole 21; the structure of the second plunger 8 and the structure of the second center hole 22 are the same as those of the first plunger 7 and the first center hole 21, respectively.
Preceding valve body 1 passes through the bolt and is connected with back valve body 2, and is equipped with sealed the pad between preceding valve body 1 and the back valve body 2.
Example one
A control method of an electric control gas valve comprises the following steps: 1) setting the heat preservation temperature to 300 ℃; 2) after the starting, the first electromagnet 5 is electrified, the first valve port 10 is opened, the high-fire-level gas is output at the moment, and pulse ignition is finished (the pulse igniter ignites for 5 seconds, a thermocouple on the stove detects that the temperature of a hearth rises and is normal, and if the thermocouple does not detect that the temperature rises, the first valve port 10 is closed automatically); 3) when the temperature rises to 303 ℃ (the temperature can be adjusted at any time in the working process, the first valve port 10 and the second valve port 11 are both closed if the adjusted temperature is lower than the set temperature, and the operation is started from step 2) when the temperature drops to +5 ℃ of the adjusted temperature; if the adjusted temperature is higher than the set temperature, the first valve port 10 is opened, when the temperature rises to the adjusted heat preservation temperature of +5 ℃, the operation is started from the step 3), the second electromagnet 6 is electrified, the second valve port 11 is opened, after 4 seconds, the first electromagnet 5 is powered off, and the first valve port 10 is closed; 4) when the temperature is reduced to 279 ℃, the first electromagnet 5 is electrified again, the first valve port 10 is opened, and after 4 seconds, the second electromagnet 6 is powered off, and the second valve port 11 is closed; 5) so repetition step 3 and step 4 realize keeping warm, and accessible control box stops the heat preservation procedure at any time in the use, still can open first valve port 10 and second valve port 11 simultaneously through the control box in order to provide super big fire, can satisfy the demand that the user rapid heating up and the demand that super big fire explodes the stir-fry.
Example two
A control method of an electric control gas valve comprises the following steps: 1) setting the heat preservation temperature to be 200 ℃; 2) after the starting, the first electromagnet 5 is electrified, the first valve port 10 is opened, the high-fire-level gas is output at the moment, and pulse ignition is finished at the same time (the pulse igniter ignites for 15 seconds, a thermocouple on the stove detects that the temperature of a hearth rises, the temperature is normal, and if the thermocouple does not detect that the temperature rises, the temperature is abnormal, the first valve port 10 is automatically closed); 3) when the temperature rises to 207 ℃ (the heat preservation temperature can be adjusted at any time in the working process), the second electromagnet 6 is electrified, the second valve port 11 is opened, after 1 second, the first electromagnet 5 is powered off, and the first valve port 10 is closed; 4) when the temperature is reduced to 193 ℃, the first electromagnet 5 is electrified again, the first valve port 10 is opened, and after 1 second, the second electromagnet 6 is powered off, and the second valve port 11 is closed; 5) and repeating the step 3 and the step 4 to realize heat preservation.
EXAMPLE III
A control method of an electric control gas valve comprises the following steps: 1) setting the heat preservation temperature to 300 ℃; 2) after the starting, the first electromagnet 5 is electrified, the first valve port 10 is opened, the high-fire-level gas is output at the moment, and pulse ignition is finished (the pulse igniter ignites for 10 seconds, a thermocouple on a stove detects that the temperature of a hearth rises, the temperature of the hearth is normal, and if the thermocouple does not detect that the temperature rises, the first valve port 10 is closed automatically); 3) when the temperature rises to 305 ℃ (the heat preservation temperature can be adjusted at any time in the working process), the second electromagnet 6 is electrified, the second valve port 11 is opened, and after 3 seconds, the first electromagnet 5 is powered off, and the first valve port 10 is closed; 4) when the temperature is reduced to 295 ℃, the first electromagnet 5 is electrified again, the first valve port 10 is opened, and after 3 seconds, the second electromagnet 6 is powered off, and the second valve port 11 is closed; 5) and repeating the step 3 and the step 4 to realize heat preservation.
The above embodiments are only preferred embodiments of the present invention, and the present invention is not limited to the above embodiments and other structural changes are allowed, and all changes within the scope of the independent claims of the present invention are included in the protection scope of the present invention.
Claims (8)
1. An automatically controlled gas valve, it includes valve body and electro-magnet, its characterized in that: the air outlet valve further comprises a control box, the valve body is divided into a front valve body (1) and a rear valve body (2), an air outlet channel (3) is arranged on the front valve body (1), an air inlet channel (4) is arranged on the rear valve body (2), the electromagnets comprise a first electromagnet (5) and a second electromagnet (6), a first movable iron core (7) and a second movable iron core (8) are respectively arranged on the first electromagnet (5) and the second electromagnet (6), and the first electromagnet (5) and the second electromagnet (6) are both arranged on the rear valve body (2); the front valve body (1) is connected with the rear valve body (2) in a sealing mode, an inner recess (9) is formed in the end face of one end, connected with the front valve body (1), of the rear valve body (2), and the inner recess (9) is communicated with the air inlet channel (4); a first valve port (10) and a second valve port (11) are arranged in the inner recess (9), a first connecting port (12) and a second connecting port (13) are respectively arranged at positions, facing the first valve port (10) and the second valve port (11), on the bottom surface of the inner recess (9), the first connecting port (12) and the second connecting port (13) respectively correspond to the first electromagnet (5) and the second electromagnet (6), one end of the first movable iron core (7) is positioned in the first connecting port (12), and one end of the second movable iron core (8) is positioned in the second connecting port (13); one end of the first movable iron core (7) is in fit sealing with the end part of the first valve port (10), one end of the second movable iron core (8) is in fit sealing with the end part of the second valve port (11), the first valve port (10) corresponds to a high fire level, and the second valve port (11) corresponds to a low fire level; a first hole (14) and a second hole (15) which correspond to the first valve port (10) and the second valve port (11) respectively are formed in the end face of one end, connected with the rear valve body (2), of the front valve body (1), one end of the first hole (14) is communicated with one end, far away from the first movable iron core (7), of the first valve port (10), one end of the second hole (15) is communicated with one end, far away from the second movable iron core (8), of the second valve port (11), and the other end of the first hole (14) and the other end of the second hole (15) are communicated with the air outlet channel (3); the first electromagnet (5) and the second electromagnet (6) are electrically connected with the control box, sealing rings (16) are arranged between one end, far away from the first movable iron core (7), of the first valve port (10) and one end, far away from the second movable iron core (8), of the second valve port (11) and the front valve body (1), the inner diameters of the two sealing rings (16) are respectively larger than the aperture of the first hole (14) and the aperture of the second hole (15) corresponding to the two sealing rings, the axes of the two sealing rings (16) are respectively on the same straight line with the axis of the first hole (14) and the axis of the second hole (15) corresponding to the two sealing rings, the air inlet channel (4) is located between the first connecting port (12) and the second connecting port (13), and the axis of the air inlet channel (4) is perpendicular to the axis of the first hole (14).
2. An electrically controlled gas valve according to claim 1, characterized in that: the first electromagnet (5) and the second electromagnet (6) are both polytetrafluoroethylene packaged electromagnets.
3. An electrically controlled gas valve according to claim 1, characterized in that: the end part of the first movable iron core (7) and the end part of the second movable iron core (8) are both provided with valve port pads (17) for improving the sealing effect; the peripheral surface of one end of the first valve port (10) close to the first movable iron core (7) and the peripheral surface of one end of the second valve port (11) close to the second movable iron core (8) are both conical surfaces.
4. An electrically controlled gas valve according to claim 3, characterised in that: the end part of one end of the valve port pad (17) arranged on the first movable iron core (7) and the end part of one end of the valve port pad (17) arranged on the second movable iron core (8) are both provided with a groove (18), and the valve port pad (17) is bonded in the groove (18).
5. An electrically controlled gas valve according to claim 1, characterized in that: a first valve seat (19) and a second valve seat (20) are respectively arranged at the first connecting port (12) and the second connecting port (13), a first central hole (21) and a second central hole (22) are respectively arranged on the first valve seat (19) and the second valve seat (20), one end of a first movable iron core (7) is positioned in the first central hole (21), and one end of a second movable iron core (8) is positioned in the second central hole (22); and return springs (23) are arranged in the first central hole (21) and the second central hole (22), and when the return springs (23) are in a free state, the first movable iron core (7) and the second movable iron core (8) are respectively attached and sealed with the first valve port (10) and the second valve port (11).
6. An electrically controlled gas valve according to claim 5, characterized in that: a bulge (24) is arranged on the outer peripheral surface of one end, close to the first valve port (10), of the first movable iron core (7), the first central hole (21) is a step hole, the reset spring (23) is a conical spring, the reset spring (23) is sleeved on the first movable iron core (7), one end of the reset spring (23) abuts against the bulge (24), and the other end of the reset spring (23) abuts against the step surface of the first central hole (21); the structure of the second movable iron core (8) and the structure of the second center hole (22) are respectively the same as the structure of the first movable iron core (7) and the structure of the first center hole (21).
7. An electrically controlled gas valve according to claim 1, characterized in that: preceding valve body (1) is connected with back valve body (2) through the bolt, and is equipped with sealed the pad between preceding valve body (1) and back valve body (2).
8. The control method of an electrically controlled gas valve according to any one of claims 1 to 7, characterized in that: it comprises the following steps: 1) setting a heat preservation temperature; 2) after the gas stove is started, the first electromagnet (5) is electrified, the first valve port (10) is opened, high-fire-level gas is output at the moment, pulse ignition is carried out simultaneously, the pulse igniter ignites for 5-15 seconds, a thermocouple on the stove detects that the temperature of a hearth rises normally, and if the thermocouple does not detect that the temperature rises, the thermocouple is abnormal, the first valve port (10) is automatically closed; 3) when the temperature rises to 3-7 ℃ above the set temperature, the second electromagnet (6) is electrified, the second valve port (11) is opened, and after 1-4 seconds, the first electromagnet (5) is powered off, and the first valve port (10) is closed; 4) when the temperature is reduced to 3-7 ℃ below the set temperature, the first electromagnet (5) is electrified again, the first valve port (10) is opened, and after 1-4 seconds, the second electromagnet (6) is powered off, and the second valve port (11) is closed; and repeating the step 3) and the step 4) in the way to realize heat preservation.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142915.1A CN106641393B (en) | 2016-12-13 | 2016-12-13 | Electric control gas valve and using method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611142915.1A CN106641393B (en) | 2016-12-13 | 2016-12-13 | Electric control gas valve and using method thereof |
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| CN106641393A CN106641393A (en) | 2017-05-10 |
| CN106641393B true CN106641393B (en) | 2020-04-14 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3118047A1 (en) * | 1981-05-07 | 1982-11-25 | Karl Dungs Gmbh & Co, 7067 Urbach | DOUBLE SOLENOID VALVE |
| US5996369A (en) * | 1997-08-05 | 1999-12-07 | Tgk Co., Ltd. | Air conditioner with sub-condenser |
| CN2532422Y (en) * | 2002-03-29 | 2003-01-22 | 缪凯荣 | Gas control valve |
| CN103410981A (en) * | 2013-08-19 | 2013-11-27 | 南京理工大学 | Parallel valve core type high-pressure electromagnetic valve |
| CN206409716U (en) * | 2016-12-13 | 2017-08-15 | 宁波万安股份有限公司 | Electric-controlled gas valve |
-
2016
- 2016-12-13 CN CN201611142915.1A patent/CN106641393B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3118047A1 (en) * | 1981-05-07 | 1982-11-25 | Karl Dungs Gmbh & Co, 7067 Urbach | DOUBLE SOLENOID VALVE |
| US5996369A (en) * | 1997-08-05 | 1999-12-07 | Tgk Co., Ltd. | Air conditioner with sub-condenser |
| CN2532422Y (en) * | 2002-03-29 | 2003-01-22 | 缪凯荣 | Gas control valve |
| CN103410981A (en) * | 2013-08-19 | 2013-11-27 | 南京理工大学 | Parallel valve core type high-pressure electromagnetic valve |
| CN206409716U (en) * | 2016-12-13 | 2017-08-15 | 宁波万安股份有限公司 | Electric-controlled gas valve |
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| Publication number | Publication date |
|---|---|
| CN106641393A (en) | 2017-05-10 |
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Denomination of invention: Electric control gas valve and its usage method Effective date of registration: 20230829 Granted publication date: 20200414 Pledgee: Industrial and Commercial Bank of China Ninghai sub branch Pledgor: NINGBO WANAN Co.,Ltd. Registration number: Y2023330001869 |