Gas heater for gas heating combustion

Abstract

The utility model discloses a gas heater for gas heating combustion, which comprises a heater body, a base for erecting the heater body and a thermocouple for monitoring the temperature in the heater body, and an outer water cooling device is arranged outside the heater body. The outer water cooling device comprises a water cooling box body, a fluid pipeline, a water inlet and a water outlet, wherein the water cooling box body is arranged on the periphery of the heater body in a sleeving and wrapping mode, the fluid pipeline is arranged in the water cooling box body, and the water inlet and the water outlet are connected to the two ends of the fluid pipeline respectively. According to the heater, impurities (such as Hgas) in gas are combusted through heating, combustible gas is filtered, then the outer water cooling device is arranged on the periphery of the heater in a sleeving and wrapping mode, the environment temperature of the heater can be effectively reduced, other equipment lines on the periphery outside are protected, the heater can be suitable for some precise working places, and the service life of the heater is prolonged. The device can be assembled on a precision machine and is not used independently.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heating, in particular to a gas heater for heating and burning gas. Background Art

[0002] A gas heater is an electric heating device mainly used to heat a gas flow. During the production processes in fields such as aerospace, semiconductor, electronics, and automotive, it is often necessary to heat a gas and heat it to a relatively high temperature, so that impurities (such as H2 gas) in the gas can burn to filter the combustible gas.

[0003] When applied to heat the protective gas in some high-precision equipment such as a lithography machine or other precision machine tools, the temperature of the heater will be very high, and the ambient temperature outside the heater will also increase. The change in temperature may affect the operation and production of some high-precision equipment. Summary of the Invention

[0004] In view of this, the purpose of the utility model is to provide a gas heater for heating and burning gas.

[0005] To solve the above technical problems, the technical solution of the utility model is: A gas heater for heating and burning gas, comprising a heater body, a base for mounting the heater body, and a thermocouple for monitoring the temperature inside the heater body. An external water cooling device is arranged outside the heater body, and the external water cooling device includes a water cooling box body sleeved and wrapped around the outer periphery of the heater body, a fluid pipeline arranged in the water cooling box body, and a water inlet and a water outlet respectively connected to both ends of the fluid pipeline.

[0006] Preferably, the water cooling box body includes an inner box wall close to the heater body, a bottom cover connected to the rear of the water cooling box body, an outer box wall in contact with the external environment, a cavity formed between the inner box wall and the outer box wall, and a front cover covering the front of the water cooling box body. The fluid pipeline is arranged in the cavity.

[0007] Preferably, the fluid pipeline is formed with a plurality of bending portions and is arranged around the outer periphery of the heater body.

[0008] Preferably, the fluid pipeline is made of stainless steel material.

[0009] Preferably, the heater body includes an outer shell, heat-insulating fibers arranged on the inner wall of the outer shell, a semi-open groove formed on the inner wall of the heat-insulating fibers, and a heating wire embedded in the groove.

[0010] Preferably, it further includes an outer cover mounted outside the heater body and the external water cooling device, and a temperature detector is arranged on the outer cover.

[0011] Furthermore, the outer cover is formed into a mesh shape.

[0012] The technical effects of the present utility model are mainly reflected in the following aspects: The heater burns impurities (such as H2 gas) in the gas through heating, filters the combustible gas, and then a water-cooling device is sleeved and wrapped around the outer periphery of the heater, which can effectively reduce the ambient temperature of the heater, protect the other equipment lines around it, enable it to be applicable to some relatively precise working places, can be assembled on precision machines, and is not used alone. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is a schematic diagram of the partially disassembled structure of the overall of the present utility model;

[0015] Figure 3 is a schematic diagram of the disassembled structure of the overall of the present utility model;

[0016] Figure 4 is the Figure 3 perspective structure schematic diagram of part A of the present utility model;

[0017] Figure 5 is a schematic diagram of the cross-sectional structure of the heater body of the present utility model.

[0018] 1 - heater body; 11 - outer shell; 12 - heat-insulating fiber; 121 - groove; 13 - heating wire; 2 - base; 3 - thermocouple; 4 - external water-cooling device; 41 - fluid pipeline; 42 - water-cooling box; 43 - water inlet; 44 - water outlet; 5 - outer cover; 6 - flame detector; 7 - temperature detector. SPECIFIC EMBODIMENTS

[0019] The following further details the specific embodiments of the present utility model in conjunction with the accompanying drawings, so that the technical solutions of the present utility model are easier to understand and master. Embodiment 1

[0020] According to Figure 1-2As shown in the figure, a gas heater for gas heating combustion includes a heater body 1, a base 2 for mounting the heater body 1, a thermocouple 3 for monitoring the temperature inside the heater body 1, and a flame detector 6 for monitoring open flames inside the heater body 1. In order to effectively reduce the heat radiated from the heater body 1 to the external environment and prevent the ambient temperature around it from rising significantly, an external water cooling device 4 is provided outside the heater body 1. The external water cooling device 4 includes a water cooling box body 42 sleeved and wrapped around the outer periphery of the heater body 1, a fluid pipeline 41 arranged in the water cooling box body 42, and a water inlet 42 and a water outlet 43 respectively connected to both ends of the fluid pipeline 41. The water cooling box body 42 is formed in a sleeve shape, and when the water cooling box body 42 is sleeved outside the heater body 1, it can completely cover and wrap the heater body 1, so that the heat radiated from the heater body 1 to the external environment is greatly reduced. Embodiment 2

[0021] The difference from Embodiment 1 is that: the water cooling box body 42 includes an inner box wall close to the heater body 1, a bottom cover connected to the rear of the water cooling box body 42, an outer box wall in contact with the external environment, a cavity formed between the inner box wall and the outer box wall, and a front cover covering the front of the water cooling box body. The fluid pipeline 41 is arranged in the cavity. Embodiment 3

[0022] The difference from Embodiment 1 is that: specifically, the fluid pipeline 41 is formed with a number of bending parts 412 and is arranged around the outer periphery of the heater body 1. The straight part 411 of the fluid pipeline 41 is parallel to the axis of the heater body 1, and the bending parts 412 of the fluid pipeline 41 are formed across the radial direction, so that the fluid pipeline 41 can cover the outer periphery of the heater body 1.

[0023] The fluid pipeline 41 is made of stainless steel material. Embodiment 4

[0024] The difference from Embodiment 1 is that: the heater body 1 includes an outer shell 11, heat-insulating fibers 12 provided on the inner wall of the outer shell 11, a semi-open groove 121 formed on the inner wall of the heat-insulating fibers 12, and heating wires 13 embedded in the groove 121, so that the temperature inside the heater body 1 is uniform. Embodiment 5

[0025] The difference from Embodiment 1 is that: it further includes an outer cover 5 erected outside the heater body 1 and the external water cooling device 4. Besides having a protective effect, the outer cover 5 can also limit the temperature radiated outward after the heater body 1 is cooled by the external water cooling device 4 within the range of the outer cover 5. A temperature detector 7 is provided on the outer cover 5 for monitoring the ambient temperature within the range of the outer cover 5; and the outer cover 5 is formed into a mesh shape to enable the outer cover 5 to reach a slow equilibrium with the external ambient temperature.

Claims

1. A gas heater for gas heating combustion, comprising a heater body, a base for mounting the heater body, and a thermocouple for monitoring the temperature inside the heater body, characterized in that: An external water cooling device is provided outside the heater body. The external water cooling device includes a water cooling box body that is sleeved and wrapped around the outer periphery of the heater body, a fluid pipeline disposed in the water cooling box body, and a water inlet and a water outlet respectively connected to both ends of the fluid pipeline.

2. The gas heater for gas heating combustion according to claim 1, wherein: The water cooling box body includes an inner box wall close to the heater body, a bottom cover connected to the rear of the water cooling box body, an outer box wall in contact with the external environment, a cavity formed between the inner box wall and the outer box wall, and a front cover covering the front of the water cooling box body. The fluid pipeline is disposed in the cavity.

3. The gas heater for gas heating combustion according to claim 1 or 2, characterized in that: The fluid pipeline is formed with a number of bending portions and is disposed around the outer periphery of the heater body.

4. A gas heater for gas heating combustion according to claim 1, characterized in that: The fluid pipeline is made of stainless steel material.

5. A gas heater for gas heating combustion according to claim 1, characterized in that: The heater body includes an outer shell, heat-insulating fibers provided on the inner wall of the outer shell, a groove with a semi-open shape formed on the inner wall of the heat-insulating fibers, and a heating wire embedded in the groove.

6. The gas heater for gas heating combustion according to claim 1, characterized in that: It further includes an outer cover erected outside the heater body and the external water cooling device, and a temperature detector is provided on the outer cover.

7. The gas heater for gas heating combustion according to claim 6, wherein: The outer cover is formed into a mesh shape.

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