CN220034578U

CN220034578U - Combined pipeline heating device

Info

Publication number: CN220034578U
Application number: CN202321077574.XU
Authority: CN
Inventors: 郑兴庆; 孙清华; 陈诚; 杨洋; 顾海华
Original assignee: Schlee Nanjing Refrigeration Machinery Manufacturing Co ltd
Current assignee: Schlee Nanjing Refrigeration Machinery Manufacturing Co ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-11-17
Anticipated expiration: 2033-05-08

Abstract

The utility model discloses a combined pipeline heating device which comprises a plurality of heaters, pipe clamps and a temperature control system, wherein the heaters are uniformly distributed along the outer circumference of a pipeline workpiece; the outer side of the pipeline workpiece and the heater are coated with a soft heat insulation layer and a hard heat insulation layer; a pipe clamp is arranged outside the hard heat insulation layer, and can fix a pipeline workpiece, a heater, a soft heat insulation layer and the hard heat insulation layer; a plurality of sets of temperature sensors are arranged on the pipe clamp, and the temperature sensors sequentially penetrate through the pipe clamp, the hard heat insulation layer and the soft heat insulation layer and are used for measuring the preheating temperature of a pipeline workpiece; the temperature sensors measure the preheating temperatures of different positions of the pipeline workpiece; the temperature control system is shared by the plurality of sets of heaters and the plurality of sets of temperature sensors, and the power of the heaters at corresponding positions is adjusted by utilizing the temperature fed back by the temperature sensors, so that the preheating temperature of the pipeline workpiece is ensured to be uniform. The pipeline preheating device is efficient and uniform in pipeline preheating and better in use experience.

Description

Combined pipeline heating device

Technical Field

The utility model relates to a combined pipeline heating device.

Background

In the fields of chemical industry, pharmacy, special equipment and the like, a pressure pipeline of an important component is required to be subjected to preheating treatment before prefabrication so as to enable diffusion hydrogen in weld metal to escape and avoid generating hydrogen induced cracks; meanwhile, the quenching degree of the welding line and the heat affected zone is reduced, and the crack resistance of the welding joint is improved. However, if preheating is not uniform, the welding stress is not reduced but increased in the case of the pressure pipe. Currently, the preheating treatment of the pressure pipeline generally adopts flame direct heating, so that the temperature of the pressure pipeline is uneven, and the process efficiency of the preheating treatment is low. In addition, use open fire can also produce smog, influence operator's comfort level, bring the potential safety hazard simultaneously.

Disclosure of Invention

The utility model aims to: the utility model aims to provide a combined pipeline heating device which can efficiently and uniformly preheat a pipeline and has better use experience.

The technical scheme is as follows: the utility model provides a combined pipeline heating device, which comprises:

the heater is arranged at the outer side of the pipeline workpiece and is used for preheating the pipeline workpiece;

a pipe clamp for securing the pipe work and the heater therein;

the temperature sensor penetrates through the pipe clamp and is used for measuring the preheating temperature of the pipeline workpiece; the method comprises the steps of,

and the temperature control system is used for interlocking the heater and the temperature sensor to control the preheating temperature of the pipeline workpiece.

According to the utility model, the pipeline workpiece in the pipe clamp is preheated by the heater, and the temperature is controlled by the temperature control system, so that the high efficiency and uniformity of pipeline preheating can be ensured; meanwhile, the problems of poor comfort, potential safety hazard and the like caused by using open fire are avoided, and better use experience is achieved.

Further, a plurality of heaters are circumferentially arranged outside the pipe work; the number of the temperature sensors is multiple, and the temperature sensors are used for measuring the preheating temperatures of different positions of the pipeline workpiece; the temperature sensors and the heaters share a set of temperature control system so as to ensure that the preheating temperature of the pipeline workpiece is uniform.

Further, the heater adopts a miniature far infrared radiation heater.

Further, a soft heat insulation layer is coated on the outer side of the heater, the soft heat insulation layer is positioned on the inner side of the pipe clamp, and the temperature sensor penetrates through the soft heat insulation layer.

Further, the hard heat insulation layer is coated outside the soft heat insulation layer, the hard heat insulation layer is positioned at the inner side of the pipe clamp, and the temperature sensor penetrates through the hard heat insulation layer.

Further, the hard heat insulation layer adopts heat insulation tiles.

When preheating is carried out by using open fire, a large amount of heat is dissipated, so that the temperature of the surrounding environment is increased, and especially in summer, the field working temperature can sometimes exceed 45 ℃, and the cooling cost of enterprises is increased. After the heat insulation layer is used, on one hand, the heat utilization rate can be greatly improved (meanwhile, the heat utilization rate can reach 95% by using the soft heat insulation layer and the hard heat insulation layer); on the other hand, the temperature of the outer surface of the pipe clamp can be controlled at about 50 ℃, operators can safely touch the pipe clamp, burn and scald accidents caused by the traditional heating mode are avoided, and the production safety of the operators is protected; on the other hand, the ambient temperature is greatly reduced, and enterprises do not need to be cooled or the cooling cost is reduced.

Further, the fasteners of the pipe clamps employ bolts and spring washers.

Further, a handle is provided on the outside of the pipe clamp to move the combined pipe heating device.

The beneficial effects are that: compared with the prior art, the utility model has the following advantages: the pipeline preheats high-efficient even, uses and experiences better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the embodiments of the present utility model, and it is obvious that the drawings described below are only embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a combined pipe heating apparatus according to an embodiment of the present utility model;

reference numerals: 1, a pipeline workpiece; 2, a heater; 3, a soft heat insulation layer; 4, pipe clamps; 5, a hard heat insulation layer; 6, a temperature sensor; 7, a handle; and 8, fastening pieces.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, and it is obvious that the described embodiments are not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model based on the embodiments of the present utility model.

As shown in fig. 1, a schematic structural diagram of a combined type pipe heating device according to an embodiment of the present utility model is provided, where the combined type pipe heating device includes a heater 2, a pipe clamp 4, and a temperature control system (not shown in the figure).

The number of the heaters 2 is four, and the heaters are uniformly distributed along the outer circumference of the pipeline workpiece 1. In this embodiment, the heater 2 is a micro far infrared radiation heater.

The outer sides of the pipeline workpiece 1 and the heater 2 are coated with a soft heat insulation layer 3 and a hard heat insulation layer 5, and the heat insulation layer has the functions of heat preservation and heat dissipation prevention, so that the heat utilization rate can be improved. In this embodiment, the hard insulating layer 5 is a heat insulating tile.

The pipe clamp 4 is arranged outside the hard heat insulation layer 5, and the pipe clamp 4 can fix the pipeline workpiece 1, the heater 2, the soft heat insulation layer 3 and the hard heat insulation layer 5. The fasteners 8 on the pipe clamp 4 are bolts and spring washers.

Four sets of temperature sensors 6 are arranged on the pipe clamp 4, and the temperature sensors 6 sequentially penetrate through the pipe clamp 4, the hard heat insulation layer 5 and the soft heat insulation layer 3 and are used for measuring the preheating temperature of the pipeline workpiece 1. Four sets of temperature sensors 6 measure the preheating temperatures of different positions of the pipeline workpiece 1.

The four sets of heaters 2 and the four sets of temperature sensors 6 share one set of temperature control system, and the power of the heaters 2 at corresponding positions is regulated by utilizing the temperature fed back by the temperature sensors 6, so that the preheating temperature of the pipeline workpiece 1 is ensured to be uniform.

Furthermore, a handle 7 is provided outside the pipe clamp 4 to move the combined pipe heating device as a whole.

The combined pipeline heating device provided by the embodiment of the utility model has the advantages that the heat utilization rate is up to 95%, and the pipeline preheating time is greatly shortened. The temperature of the outer surface of the device is below 50 ℃, so that the human body can safely touch the device completely.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions that may be easily conceived by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A combination pipe heating apparatus, comprising:

the heater (2) is arranged at the outer side of the pipeline workpiece (1) and is used for preheating the pipeline workpiece (1);

a pipe clamp (4) for fixing the pipe work (1) and the heater (2) therein;

a temperature sensor (6) passing through the pipe clamp (4) for measuring the preheating temperature of the pipe work (1); the method comprises the steps of,

the temperature control system is used for interlocking the heater (2) and the temperature sensor (6) to control the preheating temperature of the pipeline workpiece (1).

2. The combined pipe heating apparatus according to claim 1, wherein a plurality of heaters (2) are circumferentially provided outside the pipe work (1); the number of the temperature sensors (6) is a plurality of, and the temperature sensors are used for measuring the preheating temperatures of different positions of the pipeline workpiece (1); the temperature sensors (6) and the heaters (2) share a set of temperature control system so as to ensure that the preheating temperature of the pipeline workpiece (1) is uniform.

3. The combination type pipe heating apparatus as claimed in claim 1, wherein the heater (2) is a micro far infrared radiation heater.

4. The combined type pipeline heating device according to claim 1, wherein the soft heat insulation layer (3) is coated on the outer side of the heater (2), the soft heat insulation layer (3) is positioned on the inner side of the pipe clamp (4), and the temperature sensor (6) penetrates through the soft heat insulation layer (3).

5. The combined type pipeline heating device according to claim 4, wherein the hard heat insulation layer (5) is coated on the outer side of the soft heat insulation layer (3), the hard heat insulation layer (5) is positioned on the inner side of the pipe clamp (4), and the temperature sensor (6) penetrates through the hard heat insulation layer (5).

6. A modular pipe heating apparatus as claimed in claim 5, wherein the rigid insulating layer (5) is provided by insulating tiles.

7. A combined pipe heating device according to claim 1, characterized in that the fastening means (8) of the pipe clamp (4) are bolts and spring washers.

8. A combined pipe heating device according to claim 1, characterized in that the outside of the pipe clamp (4) is provided with a handle (7) for moving the combined pipe heating device.