CN216522430U - Electric pipeline heater for small-flow high-temperature gas - Google Patents
Electric pipeline heater for small-flow high-temperature gas Download PDFInfo
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- CN216522430U CN216522430U CN202123186876.4U CN202123186876U CN216522430U CN 216522430 U CN216522430 U CN 216522430U CN 202123186876 U CN202123186876 U CN 202123186876U CN 216522430 U CN216522430 U CN 216522430U
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Abstract
The utility model discloses a pipeline electric heater for small-flow high-temperature gas, which comprises a group of heating units, wherein each group of heating units comprises a shell, a heating cylinder, a heating core, a junction box and a gas pipeline; the heating cylinders are a group, are arranged on the gas pipeline in a series connection mode and are positioned in the shell; the heating core is positioned in the heating cylinder and is connected to the control cabinet through a junction box outside the shell; the gas pipeline is positioned on the side face of the shell and is provided with a gas inlet interface and a gas outlet interface respectively, and gas entering the gas pipeline is sequentially heated by the heating cores through the heating cylinders connected in series, discharged from the gas outlet interface and connected to the next heating unit. The cylinders of the pipeline electric heater are communicated through connecting pieces; the heating units can work independently, alternately or simultaneously according to a control program; and for the heating requirements of different working stages in the whole working link, the heating unit can be controlled to adopt different working modes so as to meet the heating requirements of different working conditions.
Description
Technical Field
The utility model belongs to the field of electric heaters, and particularly relates to a pipeline electric heater for small-flow high-temperature gas.
Background
The electric heater for pipeline consists of several tubular electric heating elements, cylinder, guide plate, etc. The tubular electric heating element is adopted as a heating body, and the structure is advanced and the heat efficiency is high. Good mechanical strength, corrosion resistance, wear resistance and the like. The electric heater for pipeline is used as electric heater for heating medium in pipeline or pipe and consists of single-chip computer and temperature sensor. The electric pipeline heater is widely applied to steam heating of water systems such as heating, factory process water, power plant raw water, air-conditioning heating and the like.
The pipeline electric heater commonly used at present is generally designed according to the customization of service condition, and its structure is mostly the heating core of single stroke, and the pipe diameter of heating core is great, and simultaneously in order to guarantee that outlet temperature satisfies the operation requirement, the heating core of pipeline electric heater generally designs longer to guarantee to have sufficient heating stroke, finally leads to the bloated appearance of pipeline electric heater. Furthermore, because the heater core is custom designed, the heater core is generally only suitable for a range of operating conditions. Under the long-time continuous working condition, the load of the heating core is very large, and after the heating core is damaged, the whole heating core must be replaced at the same time, so that the maintenance cost is very high.
In conclusion, the structural design and control method of the conventional pipeline electric heater have the problems of single working condition, low integration level, high maintenance cost and the like.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide the electric pipeline heater for small-flow high-temperature gas, which is used for overcoming the defects of the prior art, meeting the heating requirements of multiple working conditions, improving the integration level of equipment, prolonging the service life of the equipment and reducing the production cost and the maintenance cost of the equipment.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a pipeline electric heater for small-flow high-temperature gas comprises a group of heating units, wherein each group of heating units comprises a shell, a heating cylinder, a heating core, a junction box and a gas pipeline;
the heating cylinders are in a group, are arranged on the gas pipeline in a series connection mode and are positioned in the shell together; the heating core is positioned in the heating cylinder and is connected to the control cabinet through a junction box outside the shell;
the gas pipeline is located the casing side and is provided with the interface of admitting air and giving vent to anger the interface respectively, and the gas that gets into the gas pipeline passes through the heating barrel of establishing ties in proper order and heats the back through the heating core, from giving vent to anger the interface and discharge and insert next heating unit.
In the electric heater for pipelines, the heating unit can be composed of a single heating unit or a plurality of heating units. Also, in a single heating unit, the heating cylinder may be single, or a plurality of heating cylinders may be combined.
Furthermore, the top of each heating cylinder is connected with the heat-insulating cylinder through a flange joint; a high-temperature wire is arranged in the heat-insulating cylinder, heat-insulating materials are filled in the heat-insulating cylinder, and the heat-insulating cylinder extends to the outside of the shell and is connected with the junction box; the junction box is connected with the heating core below through a high-temperature wire in the heat-insulating cylinder.
Specifically, two adjacent heating cartridges are connected by a pipe connection member, so that a gas passage is formed between the two heating cartridges.
Specifically, an insulating layer is filled in the shell.
Furthermore, an air inlet temperature measuring interface for installing a temperature measuring element is arranged at the air inlet interface; the air outlet interface is provided with an air outlet temperature measuring interface for mounting a temperature measuring element; and at least one middle temperature measuring interface for installing a temperature measuring element is also arranged on the gas pipeline in the shell.
Preferably, the heating core comprises more than one tubular heating element or bare wire type heating element.
Preferably, the type of connector includes, but is not limited to, elbow or straight pipe, etc.
Preferably, the connection mode between the gas pipeline, the connecting piece and the heat preservation cylinder comprises but is not limited to flange connection, argon arc welding and the like.
Has the advantages that:
the electric pipeline heater comprises one or more heating units, each heating unit comprises one or more barrels, and the barrels are communicated through connecting pieces to form a heating channel; the heating units can work independently, alternately or simultaneously according to a control program; under the whole working link, the heating requirements of different working stages can be controlled, and the heating units can be controlled to adopt different working modes so as to meet the heating requirements of different working conditions.
Drawings
The foregoing and/or other advantages of the utility model will become further apparent from the following detailed description of the utility model when taken in conjunction with the accompanying drawings.
Fig. 1 is a longitudinal sectional view of a single heating unit of the pipe electric heater.
Fig. 2 is a top view of a single heating unit of the pipe electric heater.
Fig. 3 is a schematic view showing a manner in which four heating cartridges are connected in series in a single heating unit of the pipe electric heater.
Wherein each reference numeral represents:
1 heating the core; 2, heating the cylinder; 3, a heat preservation cylinder; 4, a junction box; 5, flange joints; 6, connecting a pipeline; 7, insulating layer; 8, a shell; 9 an air inlet interface; 10 air inlet temperature measuring interface; 11, an air outlet interface; 12 air outlet temperature measuring interface; 13 middle section temperature measuring interface; a1 first heating cylinder; a2 second heating cylinder; b1 third heating cylinder; b2 fourth cartridge heater.
Detailed Description
The utility model will be better understood from the following examples.
The structures, proportions, and dimensions shown in the drawings and described in the specification are for understanding and reading the present disclosure, and are not intended to limit the scope of the present disclosure, which is defined in the claims, and are not essential to the skilled in the art. In addition, the terms "upper", "lower", "front", "rear" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the relative positions may be changed or adjusted without substantial technical changes.
As shown in fig. 1 to 3, the electric pipe heater includes a set of heating units, each set of heating units includes a housing 8, a heating cartridge 2, a heating core 1, a junction box 4 and a gas pipe, and an insulating layer 7 is filled in the housing 8.
As shown in fig. 3, the present embodiment has four heating cartridges, i.e., a first heating cartridge a1, a second heating cartridge a2, a third heating cartridge B1, and a fourth heating cartridge B2, in a single heating unit. The four heating cylinders are arranged on the gas pipeline in a series connection mode and are positioned in the shell 8 together; the heater core 1 is located within the heater cartridge 2 and is connected to the control cabinet by a junction box 4 outside the housing 8. The heating core 1 comprises more than one tubular heating element or bare wire type heating element.
The gas pipeline is located the casing 8 side and is provided with air inlet interface 9 and the interface 11 of giving vent to anger respectively, and the gas that gets into the gas pipeline passes through the heating barrel 2 of establishing ties in proper order and heats the back through heating core 1, and the interface 11 of giving vent to anger is discharged and is inserted next heating unit from giving vent to anger.
The top of each heating cylinder 2 is connected with a heat-insulating cylinder 3 through a flange joint 5; a high-temperature wire is arranged inside the heat-insulating cylinder 3, and is filled with heat-insulating materials, and the heat-insulating cylinder 3 extends to the outside of the shell 8 and is connected with the junction box 4; the wire connected with the commercial power in the junction box 4 is connected with the heating core 1 below through a high-temperature wire in the heat-insulating cylinder 3.
The adjacent two heating cylinders 2 are connected through the elbow pipe connecting piece 6, so that a gas passage is formed between the two heating cylinders 2. The gas pipeline, the connecting piece 6 and the heat-insulating cylinder 3 are connected by flanges or argon arc welding.
An air inlet temperature measuring interface 10 for mounting a temperature measuring element is arranged at the air inlet interface 9; an air outlet temperature measuring interface 12 for mounting a temperature measuring element is arranged at the air outlet interface 11; and at least one middle temperature measuring interface 13 for installing a temperature measuring element is also arranged on the gas pipeline in the shell 8.
The heating units of the pipeline electric heater can work independently, alternately or simultaneously according to a control program. And for the heating requirements of different working stages in the whole working link, the heating unit can be controlled to adopt different working modes so as to meet the heating requirements of different working conditions. For the working condition requirement of high heating temperature, the connecting piece can be in a bent head structure, so that the integration level of equipment is favorably improved on the premise of ensuring the heating stroke; when the heating device works in a low power consumption state, the heating units are controlled to work alternately, so that the service life of the device is prolonged; under the operating mode requirement of difference, the barrel can select different materials, under the prerequisite of guaranteeing equipment heating performance, is favorable to reduction in production cost. Meanwhile, the equipment can be maintained in a mode of replacing the heating core, so that the maintenance cost is reduced.
The present invention provides a method and a concept for a pipeline electric heater for small flow rate high temperature gas, and a method and a way for implementing the technical scheme are many, and the above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. All the components not specified in the present embodiment can be realized by the prior art.
Claims (8)
1. The electric pipeline heater for small-flow high-temperature gas is characterized by comprising a group of heating units, wherein each group of heating units comprises a shell (8), a heating cylinder (2), a heating core (1), a junction box (4) and a gas pipeline;
the heating barrels (2) are arranged in a group, are arranged on a gas pipeline in a series connection mode, and are positioned in the shell (8) together; the heating core (1) is positioned in the heating cylinder (2) and is connected to the control cabinet through a junction box (4) outside the shell (8);
the gas pipeline is located the casing (8) side and is provided with air inlet interface (9) and interface (11) of giving vent to anger respectively, and the gas that gets into the gas pipeline passes through heating core (1) through heating cylinder (2) of establishing ties in proper order and heats the back, from interface (11) discharge of giving vent to anger and insert next heating unit.
2. The electric heater for small flow high temperature gas in pipeline according to claim 1, wherein the top of each heating cylinder (2) is connected with the heat preservation cylinder (3) through a flange joint (5); a high-temperature wire is arranged in the heat-insulating cylinder (3) and is filled with heat-insulating materials, and the heat-insulating cylinder (3) extends to the outside of the shell (8) and is connected with the junction box (4); the junction box (4) is connected with the control cabinet and is connected with the heating core (1) below through a high-temperature wire in the heat-insulating cylinder (3).
3. The tubular electric heater for small flow of high temperature gas according to claim 1, characterized in that the adjacent two heating cartridges (2) are connected by a tubular connector (6) to form a gas passage between the two heating cartridges (2).
4. The pipe electric heater for small flow high temperature gas according to claim 1, characterized in that the inside of the housing (8) is filled with an insulating layer (7).
5. The electric heater for pipelines with small flow of high-temperature gas as claimed in claim 1, wherein an inlet temperature measuring interface (10) for installing a temperature measuring element is arranged at the inlet interface (9); an air outlet temperature measuring interface (12) for mounting a temperature measuring element is arranged at the air outlet interface (11); and at least one middle temperature measuring interface (13) for installing a temperature measuring element is also arranged on the gas pipeline in the shell (8).
6. The electric pipe heater for small flow of high temperature gas according to claim 1, wherein the heating core (1) comprises more than one tubular heating element or bare wire heating element.
7. The electric heater for small flow high temperature gas pipe according to claim 3, wherein the connecting piece (6) is an elbow pipe or a straight pipe.
8. The electric heater for small flow high temperature gas pipeline according to claim 3, characterized in that the gas pipeline, the connecting piece (6) and the heat preservation cylinder (3) are connected by flanges or argon arc welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123186876.4U CN216522430U (en) | 2021-12-17 | 2021-12-17 | Electric pipeline heater for small-flow high-temperature gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123186876.4U CN216522430U (en) | 2021-12-17 | 2021-12-17 | Electric pipeline heater for small-flow high-temperature gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216522430U true CN216522430U (en) | 2022-05-13 |
Family
ID=81499852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123186876.4U Active CN216522430U (en) | 2021-12-17 | 2021-12-17 | Electric pipeline heater for small-flow high-temperature gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216522430U (en) |
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2021
- 2021-12-17 CN CN202123186876.4U patent/CN216522430U/en active Active
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