CN218328670U

CN218328670U - Gas heating device

Info

Publication number: CN218328670U
Application number: CN202222473717.0U
Authority: CN
Inventors: 徐智; 熊新; 周威
Original assignee: Wuhan Meierting Environmental Protection Technology Co ltd
Current assignee: Wuhan Meierting Environmental Protection Technology Co ltd
Priority date: 2022-09-19
Filing date: 2022-09-19
Publication date: 2023-01-17
Anticipated expiration: 2032-09-19

Abstract

The utility model provides a gas heating device, including cartridge heater, positive electrode and negative electrode, the cartridge heater is both ends open-ended cylindric, lay refractory material on the inner wall of cartridge heater, be equipped with the cooling jacket in the opening at cartridge heater both ends respectively, the cooling jacket size with cartridge heater open-ended size suits, enables the cooling jacket to fix in the opening of cartridge heater, positive electrode and negative electrode pass respectively the cooling jacket stretches into the cartridge heater, positive electrode and negative electrode can for the cartridge heater back-and-forth movement, be equipped with air inlet and gas outlet on the cartridge heater stack body, the air inlet is used for into needing heated gas, follows after the gas is heated the gas outlet is discharged. This device passes through the electrode and produces electric arc heating gas, and the highest can be with gas heating to more than 3000 ℃, and this device need not great heat-transfer surface can realize the rapid heating to gas moreover, and the thermal efficiency is high, and is short to temperature regulation response time, adjusts the temperature convenient sensitivity.

Description

Gas heating device

Technical Field

The utility model belongs to the thermal equipment field especially relates to a gas heating device.

Background

In the industry, two general ways are adopted for heating gas, one is fuel combustion, the way of heating gas by fuel combustion can only heat non-combustible gas, and the gas composition can be changed, so that the application range is smaller; the other is an electric heating mode, which generally heats the gas by electrifying a resistance wire and then heating the gas, and needs a larger heat exchange area, and the heat efficiency is not high, especially, the gas can only be heated to about 1000 ℃ by the electric heating, and when the gas with higher temperature is needed, the gas heating mode cannot be realized.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a novel gas heating device, this device pass through the electrode and produce electric arc heating gas, can be with gas heating to more than 3000 ℃ the highest, and this device need not great heat-transfer surface can realize the rapid heating to gas moreover, and the thermal efficiency is high, and is short to temperature regulation response time, and the convenient sensitivity that adjusts the temperature, and the device is small, conveniently lays.

The above technical object of the utility model is realized through following technical scheme: the utility model provides a gas heating device, includes heating cylinder, positive electrode and negative electrode, the heating cylinder is the cylindric of both ends open-ended, lay refractory material on the inner wall of heating cylinder, be equipped with the cooling jacket in the opening at heating cylinder both ends respectively, the cooling jacket size with heating cylinder open-ended size suits, enables the cooling jacket to fix in the opening of heating cylinder, positive electrode and negative electrode pass respectively the cooling jacket stretches into the heating cylinder, positive electrode and negative electrode can for the heating cylinder back-and-forth movement, be equipped with air inlet and gas outlet on the heating cylinder stack body, the air inlet is used for advancing needs heating gas, follows after the gas is heated the gas outlet is discharged.

Further to the above technical solution, the air inlet and the air outlet are respectively close to two ends of the heating cylinder.

In the above technical solution, the air inlet is perpendicular to the heating cylinder.

Further describing the technical scheme, the heating device further comprises an electromagnetic coil, the electromagnetic coil is laid on the inner wall of the heating cylinder and between the refractory materials, and the electromagnetic coil is laid around the inner wall of the heating cylinder.

In the further description of the above technical solution, the cooling jacket is a water-cooled copper jacket.

Further describing the technical scheme, the refractory materials are at least 3 layers, and a low-temperature heat-preservation and insulation material, a medium-temperature refractory material and a high-temperature refractory material are sequentially arranged from the inner wall closest to the heating cylinder to the outside, wherein the low-temperature heat-preservation and insulation material can resist the temperature of 600-900 ℃, the medium-temperature refractory material can resist the temperature of 900-1200 ℃, and the high-temperature refractory material can resist the temperature of more than 1200 ℃.

Further describing the technical scheme, the low-temperature heat-insulating material is a clay heat-insulating brick or a light heat-insulating brick or a high-alumina light-polymer brick or a mullite light-polymer heat-insulating brick or an alumina hollow sphere heat-insulating brick.

Further describing the technical scheme, the medium-temperature refractory material is clay brick or high-alumina brick.

Further describing the technical scheme, the high-temperature refractory material is fused zirconia corundum or fused mullite or fused corundum or mullite or corundum mullite or magnesia-chrome brick or quartz or sillimanite.

Further described in the above technical solutions, the positive electrode and the negative electrode are made of graphite or tungsten-based alloy or molybdenum alloy.

The utility model has the advantages that:

1. the utility model provides a gas heating device, when the electrode at heating cylinder both ends moves to the flexible inwards, adopts contact or non-contact mode striking to form the electric arc region, and the electric arc region forms the high temperature of ten thousand degrees and heats gas, can make gaseous average temperature reach 3000 ℃ through this kind of mode;

2. the utility model provides a gas heating device, air intake adopt the tangential to admit air, can make the gas of waiting to heat and electric arc region carry out forced convection heat transfer, realize heating gas, avoid the refractory material in the heating cylinder too high simultaneously, protect the refractory material in the heating cylinder;

3. the gas heating device provided by the utility model can make the electric arc more stable by the magnetic field generated by the arranged electromagnetic coil;

4. the gas heating device provided by the utility model can adjust the output power of the electric arc by adjusting the distance of the electrode or adjusting the current passing through the electrode, and can flexibly adjust the gas heating temperature by matching with the adjustment of the air intake, and the adjustment response is quick and convenient;

5. the utility model provides a gas heating device need not great heat transfer area, and the device is small, and the installation is nimble, if be used for using with other equipment cooperations, it is very convenient.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

wherein: 1-negative electrode, 2-water-cooled copper sleeve, 3-fire-resistant layer, 4-heating cylinder, 5-electromagnetic coil, 6-air outlet, 7-positive electrode and 8-air inlet.

Detailed Description

The present invention will be further described with reference to the following specific embodiments and accompanying drawings. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

As shown in fig. 1, the gas heating apparatus of the present embodiment includes a heating cylinder 4, a positive electrode 7, and a negative electrode 1.

The heating cylinder 4 is cylindrical with openings at two ends, the cylinder body part in the middle of the heating cylinder 4 is cylindrical, two ends of the heating cylinder are contracted compared with the cylinder body, the diameter of the openings at two ends is smaller than that of the cylinder body part of the heating cylinder 4, and the openings at two ends are also cylindrical.

An electromagnetic coil, a clay insulating brick layer, a high-alumina brick layer and an electric fused zirconia corundum layer are sequentially paved on the inner wall of the heating cylinder 4 from inside to outside, and the clay insulating brick layer, the high-alumina brick layer and the electric fused zirconia corundum layer form a fire-resistant layer 3. The electromagnetic coil 5 is wound on the inner wall of the heating cylinder 4.

In this embodiment, the electromagnetic coil 5 is laid only in the middle part of the heating cylinder 4 corresponding to the area where the arc is generated, but in other embodiments, the electromagnetic coil may be laid over the inner wall of the heating cylinder body.

Cylindrical water-cooling copper sleeves 2 are respectively clamped in two openings of the heating cylinder 4, the size of each water-cooling copper sleeve 2 is matched with that of the corresponding opening, the water-cooling copper sleeves 2 can be fixed at the openings, and parts of cylindrical positive electrodes 7 and cylindrical negative electrodes 1 respectively penetrate through the water-cooling copper sleeves to extend into the heating cylinder 4. The size of the electrode is matched with that of the water-cooling copper sleeve 2, the electrode can slide back and forth in the water-cooling copper sleeve, the distance between the two electrodes in the heating cylinder is adjusted, and therefore the size of an arc area generated between the two electrodes is adjusted.

The air inlet 8 is vertically arranged on the heating cylinder body 4 and is close to one end of the negative electrode, the air outlet 6 is vertically arranged on one end of the heating cylinder body 4 and is close to the positive electrode, and the air inlet 8 and the air outlet 6 are arranged on the same plane vertical to the heating cylinder body.

The working principle of the embodiment is as follows: the positive electrode 7 and the negative electrode 1 are respectively electrified, then the positive electrode 7 and the negative electrode 1 move into the heating cylinder 4, arc striking is carried out in a contact or non-contact mode, an arc area is formed, the arc area can generate high temperature of tens of thousands of degrees at the highest, and a high-temperature field is formed in the heating cylinder 4. The gas to be heated is tangentially introduced from the gas inlet 8, heated to the required temperature in the heating cylinder 4 and then discharged from the gas outlet 6.

After arc striking, the output power of the electric arc is adjusted by adjusting the distance of the electrode or adjusting the current of the electrode, so that the temperature in the heating cylinder is adjusted. By heating the gas in this way, the gas can be heated to an average temperature of 100-3000 ℃.

It is obvious that the above are only some embodiments of the present invention, and are not used for limiting the present invention, and for those skilled in the art, the present invention can have the combination and modification of the above various technical features, and those skilled in the art can replace the modifications, equivalents, or use the structure or method of the present invention in other fields to achieve the same effect without departing from the spirit and scope of the present invention, and all belong to the protection scope of the present invention.

Claims

1. A gas heating apparatus, characterized in that: the heating cylinder is cylindrical with openings at two ends, refractory materials are laid on the inner wall of the heating cylinder, cooling sleeves are arranged in the openings at two ends of the heating cylinder respectively, the size of each cooling sleeve is matched with the size of the opening of the heating cylinder, the cooling sleeves can be fixed in the openings of the heating cylinder, the positive electrodes and the negative electrodes penetrate through the cooling sleeves respectively and stretch into the heating cylinder, the positive electrodes and the negative electrodes can move back and forth relative to the heating cylinder, an air inlet and an air outlet are formed in a cylinder body of the heating cylinder, the air inlet is used for allowing air to be heated, and the air is heated and then discharged from the air outlet.

2. The gas heating apparatus according to claim 1, wherein: the air inlet and the air outlet are respectively close to two ends of the heating cylinder.

3. The gas heating apparatus according to claim 1, wherein: the air inlet is vertical to the heating cylinder body.

4. The gas heating apparatus according to claim 1, wherein: the heating device further comprises an electromagnetic coil, the electromagnetic coil is laid on the inner wall of the heating cylinder and between the refractory materials, and the electromagnetic coil winds the inner wall of the heating cylinder and is laid.

5. The gas heating apparatus according to claim 1, wherein: the cooling jacket is a water-cooling copper jacket.

6. The gas heating apparatus according to claim 1, wherein: the positive electrode and the negative electrode are made of graphite or tungsten alloy or molybdenum alloy.

7. The gas heating apparatus according to claim 1, wherein: the refractory material comprises at least 3 layers, and a low-temperature heat-preservation and insulation material, a medium-temperature refractory material and a high-temperature refractory material are sequentially arranged from the inner wall closest to the heating cylinder to the outside, wherein the low-temperature heat-preservation and insulation material can resist the temperature of 600-900 ℃, the medium-temperature refractory material can resist the temperature of 900-1200 ℃, and the high-temperature refractory material can resist the temperature of more than 1200 ℃.

8. The gas heating apparatus according to claim 7, wherein: the low-temperature heat-insulating material is a clay heat-insulating brick or a light heat-insulating brick or a high-alumina light-weight polymer brick or a mullite light-weight polymer heat-insulating brick or an alumina hollow sphere heat-insulating brick.

9. The gas heating apparatus according to claim 7, wherein: the medium-temperature refractory material is clay brick or high-alumina brick.

10. The gas heating apparatus according to claim 7, wherein: the high-temperature refractory material is fused zirconia corundum or fused mullite or fused corundum or mullite or corundum mullite or magnesia-chrome brick or quartz or sillimanite.