阅读说明：本技术 一种燃气用温控安全阀 (Temperature control safety valve for gas ) 是由 谭俊超 于 2021-09-07 设计创作，主要内容包括：本发明公开了一种燃气用温控安全阀,包括阀体,阀体上设置有进气口,阀体上设置有用于启闭进气口的电磁阀,阀体上设置有至少一个与进气口相连通的出气口,每个出气口上均设置有热变形金属片,在常温下热变形金属片封闭所述出气口,阀体内设置有与热变形金属片配合的发热器,通过电磁阀控制进气口的通断,从而起到第一重保护控温作用,通过发热器控制热变金属片发生变形,进而控制出气口的通断,进而起到第二重保护控温作用,从而对温度的控制效果更好,安全性能更强。(The invention discloses a temperature control safety valve for gas, which comprises a valve body, wherein a gas inlet is arranged on the valve body, an electromagnetic valve for opening and closing the gas inlet is arranged on the valve body, at least one gas outlet communicated with the gas inlet is arranged on the valve body, each gas outlet is provided with a thermal deformation metal sheet, the gas outlet is sealed by the thermal deformation metal sheets at normal temperature, a heater matched with the thermal deformation metal sheets is arranged in the valve body, the on-off of the gas inlet is controlled by the electromagnetic valve, so that a first heavy protection temperature control effect is achieved, the thermal deformation metal sheets are controlled by the heater to deform, the on-off of the gas outlet is further controlled, and a second heavy protection temperature control effect is achieved, so that the temperature control effect is better, and the safety performance is stronger.)

1. A temperature-controlled safety valve for gas, characterized by comprising:

the valve body, be provided with air inlet (30) on the valve body, be provided with solenoid valve (40) that are used for opening and close air inlet (30) on the valve body, be provided with at least one gas outlet (31) that are linked together with air inlet (30) on the valve body, all be provided with heat altered shape sheetmetal (50) on every gas outlet (31), heat altered shape sheetmetal (50) seals at normal atmospheric temperature gas outlet (31), be provided with in the valve body with heat altered shape sheetmetal (50) complex heater (60).

2. A temperature-controlled safety valve for gas as claimed in claim 1, wherein:

the valve body is provided with a sealing gasket (70) positioned between the thermal deformation metal sheet (50) and the air outlet (31).

3. A temperature-controlled safety valve for gas as claimed in claim 1, wherein:

and two air outlets (31) are arranged on the valve body.

4. A temperature-controlled safety valve for gas as claimed in claim 1, 2 or 3, wherein:

be provided with a gas chamber in the valve body, air inlet (30) and gas outlet (31) all with the gas chamber is linked together, solenoid valve (40) set up in the gas chamber, heat altered shape sheetmetal (50) set up in the gas chamber, heat altered shape sheetmetal (50) fit gas outlet (31) inboard from the gas intracavity under the normal atmospheric temperature.

5. The temperature-controlled safety valve for gas as claimed in claim 4, wherein:

the valve body includes valve body shell (10), be provided with cavity (11) that run through about in valve body shell (10), air inlet (30) set up on valve body shell (10) and are linked together with cavity (11), solenoid valve (40) are located in cavity (11), valve body shell (10) left and right sides demountable installation has a apron (20), and two apron (20) seal thereby the both ends of cavity (11) form the gas chamber, gas outlet (31) set up in on apron (20), heater (60) set up in apron (20) are inboard, heat altered shape sheetmetal (50) set up in apron (20) inboard and link to each other with heater (60).

6. The temperature-controlled safety valve for gas as claimed in claim 5, wherein:

a sealing ring (71) is arranged between the valve body shell (10) and the cover plate (20).

Technical Field

The invention relates to the field of valve bodies, in particular to a temperature control safety valve for gas.

Background

In the process of using gas by the burner, in order to control the temperature, a valve is generally adopted to control the on-off of the gas or the gas flow is adjusted by a liquid expansion principle so as to control the firepower, and the existing valve only has one temperature control capacity, so that the accuracy of temperature control is lower.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide a safety valve for gas, which has higher temperature control precision and is safer.

The technical scheme adopted by the invention for solving the problems is as follows: a temperature-controlled safety valve for gas, comprising:

the heat-resistant valve comprises a valve body, wherein an air inlet is formed in the valve body, an electromagnetic valve used for opening and closing the air inlet is arranged on the valve body, at least one air outlet communicated with the air inlet is formed in the valve body, each air outlet is provided with a heat-deformation metal sheet, the heat-deformation metal sheets seal the air outlets at normal temperature, and a heater matched with the heat-deformation metal sheets is arranged in the valve body.

As a further improvement of the technical scheme, a sealing gasket positioned between the thermal deformation metal sheet and the air outlet is arranged on the valve body.

As a further improvement of the technical scheme, the number of the air outlets on the valve body is two.

As a further improvement of the technical scheme, a gas cavity is arranged in the valve body, the gas inlet and the gas outlet are communicated with the gas cavity, the electromagnetic valve is arranged in the gas cavity, the thermal deformation metal sheet is arranged in the gas cavity, and the thermal deformation metal sheet is covered on the inner side of the gas outlet from the gas cavity at normal temperature.

As a further improvement of the above technical scheme, the valve body includes a valve body shell, a cavity penetrating through the left and right sides is arranged in the valve body shell, the air inlet is arranged on the valve body shell and communicated with the cavity, the electromagnetic valve is located in the cavity, a cover plate is detachably arranged on the left and right sides of the valve body shell, two cover plates are sealed, two ends of the cavity form the fuel gas cavity, the air outlet is arranged on the cover plate, the heater is arranged on the inner side of the cover plate, and the thermal deformation metal sheet is arranged on the inner side of the cover plate and connected with the heater.

As a further improvement of the technical scheme, a sealing ring is arranged between the valve body shell and the cover plate.

The invention has the beneficial effects that: the electromagnetic valve is used for controlling the on-off of the air inlet, so that a first heavy protection temperature control effect is achieved, the heat change metal sheet is controlled by the heater to deform, the on-off of the air outlet is controlled, a second heavy protection temperature control effect is achieved, the temperature control effect is better, and the safety performance is stronger.

Drawings

The invention is further explained below with reference to the drawing description and the detailed description.

FIG. 1 illustrates the operation of a preferred embodiment of the present invention;

fig. 2 is a schematic diagram of an explosive structure according to a preferred embodiment of the present invention.

Detailed Description

Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 to 2, a temperature-controlled safety valve for gas includes:

the valve comprises a valve body, wherein an air inlet 30 is arranged on the valve body, an electromagnetic valve 40 for opening and closing the air inlet 30 is arranged on the valve body, at least one air outlet 31 communicated with the air inlet 30 is arranged on the valve body, each air outlet 31 is provided with a thermal deformation metal sheet 50, the air outlets 31 are sealed by the thermal deformation metal sheets 50 at normal temperature, and a heater 60 matched with the thermal deformation metal sheets 50 is arranged in the valve body.

The scheme discloses that the temperature control safety valve for gas is the cooperation gas user equipment, explains this use of producing here for example: when the gas heater is used, the gas inlet 30 is communicated with gas, the gas outlet 31 is connected with a burner on a gas using device, the electromagnetic valve 40 is electrically connected with a temperature control switch on the gas using device, the heater 60 is connected with an igniter on the gas using device in series, the temperature in the device is definitely lower than the specified temperature when the gas heater is used, the electromagnetic valve 40 is opened when the temperature control switch is opened so as to control the device to work, so that the gas enters the gas inlet 30, the heat-deformed metal sheet 50 still seals the gas outlet 31 at the moment, the igniter is heated to be ready to ignite the gas, when the temperature of the igniter reaches the temperature capable of igniting the gas, the heater 60 can synchronously generate high temperature so as to deform the heat-deformed metal sheet 50, further open the gas outlet 31, the gas flows out to the burner and is ignited by the igniter so as to heat the device, when the temperature exceeds the specified temperature, the solenoid valve 40 is according to temperature detect switch's feedback, close air inlet 30, some firearm and heater 60 circuits also cut off the power supply simultaneously, make heat altered shape sheetmetal 50 cooling seal gas outlet 31, make the combustor stop burning, thereby reduce the temperature in the equipment, when the temperature in the equipment is less than the regulation numerical value, solenoid valve 40 opens, the gas gets into, some firearm and heater 60 circuits switch on simultaneously, thereby repeat the above-mentioned operation of lighting the gas, through solenoid valve 40 and heat altered shape sheetmetal 50, carry out dual accuse temperature and protection to the temperature in the equipment, thereby can be better control the temperature to the equipment that uses the gas, accuse temperature precision is higher. The example is one of the use effects of the scheme, and in practical application, the scheme can be applied in other ways.

Preferably, in order to enhance the sealing performance between the heat deformable metal sheet 50 and the air outlet 31, a sealing gasket 70 is disposed on the valve body between the heat deformable metal sheet 50 and the air outlet 31.

Further, preferably, two gas outlets 31 are arranged on the valve body for further optimization, because two burners are arranged on most gas-using equipment.

Further optimize, preferably be provided with a gas chamber in the valve body, air inlet 30 and gas outlet 31 all with the gas chamber is linked together, solenoid valve 40 set up in the gas chamber, heat altered shape sheetmetal 50 closes in gas outlet 31 inboard from the gas intracavity lid under the normal atmospheric temperature.

Further optimization, in view of convenience of production and installation, it is preferable that the valve body includes a valve body housing 10, a cavity 11 penetrating through left and right sides is provided in the valve body housing 10, the air inlet 30 is provided on the valve body housing 10 and communicated with the cavity 11, the electromagnetic valve 40 is located in the cavity 11, a cover plate 20 is detachably mounted on left and right sides of the valve body housing 10, two cover plates 20 seal two ends of the cavity 11 to form the gas cavity, the air outlet 31 is provided on the cover plates 20, the heater 60 is provided on inner sides of the cover plates 20, and the thermal deformation metal sheet 50 is provided on inner sides of the cover plates 20 and connected with the heater 60. In order to enhance the sealing effect and prevent the gas from overflowing, a sealing ring 71 is preferably provided between the valve body housing 10 and the cover plate 20. In this embodiment, the thermally deformable metal sheet 50 is disposed in the gas chamber to seal the gas outlet 31, but may be disposed outside the valve body, so that the gas outlet 31 is opened and closed by the outside, or even disposed inside the gas outlet 31 to open and close the gas outlet 31.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which can be directly or indirectly applied to other related technical fields without departing from the spirit of the present invention, are intended to be included in the scope of the present invention.