Improved device for heat treatment rapid cooling process

Abstract

The utility model relates to the technical field of pipe heat treatment processes, and particularly discloses an improved device for a heat treatment rapid cooling process, which comprises a production pipeline, a pipe fitting for circularly cooling a pipe on the production pipeline, a heat exchanger I, a circulating fan, a heat exchanger II and a refrigerating machine for cooling the heat exchanger II, wherein one end of the pipe is communicated with the first heat exchanger through an exhaust pipe, air cooled by the first heat exchanger is conveyed to the second heat exchanger through the circulating fan, and the other end of the pipe is filled with air cooled by the second heat exchanger through an exhaust pipe. Wherein the temperature of the protective gas after two times of cooling is relatively stable, is not easily influenced by other factors, and is more stable for the annealing process; the temperature of the protective gas can be reduced to-15 DEG C, so that the production time is greatly saved, and the production efficiency is improved; and the gas temperature can be adjusted through the heat exchanger so as to meet the requirements of different materials on the annealing process.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe heat treatment technology, in particular to an improved device for heat treatment rapid cooling technology. Background Art

[0002] In order to meet the use environment of well field operations and extend the service life of oil and gas resource extraction pipes, pipe production lines usually adopt heat treatment and rapid cooling process;

[0003] At present, the conventional fast cooling method for heat treatment is mainly water cooling or air cooling (wind cooling), but it is easily affected by the environment and time, making the heat treatment result unstable; thus causing the problems of low cooling speed of the pipe, low production efficiency, and unadjustable cooling temperature. Utility Model Content

[0004] The utility model aims to provide an improved device for a heat treatment rapid cooling process, and solves the problem of how to improve the stability of the annealing cooling process of pipes.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model provides an improved device for a heat treatment rapid cooling process, comprising a production pipeline, a pipe fitting for circulating cooling of pipes on the production pipeline, a first heat exchanger, a circulating fan, a second heat exchanger, and a refrigerator for cooling the second heat exchanger;

[0007] One end of the pipe is connected to the heat exchanger 1 through an exhaust pipe, the air cooled by the heat exchanger 1 is transported to the heat exchanger 2 through a circulating fan, and the air cooled by the heat exchanger 2 is filled into the other end of the pipe through an exhaust pipe;

[0008] The heat exchanger 1 cools the hot air passing through it by circulating cooling water;

[0009] The second heat exchanger is connected to the refrigerator through a cooling medium inlet pipe and a cooling medium return pipe.

[0010] Furthermore, the heat exchanger 1 is provided with a heat exchanger 1 air inlet end connected to the air extraction pipe and a heat exchanger 1 air exhaust end connected to the circulation fan;

[0011] The heat exchanger 1 also includes a water inlet and a water outlet for water cooling;

[0012] Or / and, the water inlet and the water outlet are connected to a circulating water pump and a cooling water source respectively.

[0013] Furthermore, the circulation fan includes a circulation fan air inlet end connected to the exhaust end of the heat exchanger 1 and a circulation fan air outlet end connected to the heat exchanger 2.

[0014] Furthermore, the heat exchanger 2 includes a heat exchanger 2 air inlet end connected to the air outlet end of the circulation fan and a heat exchanger 2 exhaust end connected to the exhaust pipe.

[0015] Compared with the prior art, the beneficial technical effects of the utility model are:

[0016] 1. After two coolings, the temperature of the protective gas is relatively stable and is not easily affected by other factors, making it more stable for the annealing process;

[0017] 2. The protective gas temperature can be reduced to -15°C, which greatly saves production time and improves production efficiency;

[0018] 3. The gas temperature can be adjusted through the heat exchanger to meet the annealing process requirements of different materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 It is a main schematic diagram of the improved device for the heat treatment rapid cooling process of the utility model.

[0021] Explanation of the reference numerals: 1. exhaust pipe; 2. air inlet end of heat exchanger 1; 3. exhaust end of heat exchanger 1; 4. air inlet end of circulating fan; 5. air outlet end of circulating fan; 6. air inlet end of heat exchanger 2; 7. exhaust end of heat exchanger 2; 8. exhaust pipe; 9. water inlet end; 10. water outlet end; 11. cooling medium inlet pipe; 12. cooling medium return pipe; 13. refrigerator. DETAILED DESCRIPTION

[0022] This embodiment discloses an improved device for a heat treatment rapid cooling process, comprising a production pipeline, a pipe fitting for circulating cooling of pipes on the production pipeline, a heat exchanger 1, a circulating fan, a heat exchanger 2, and a refrigerator 13 for cooling the heat exchanger 2;

[0023] In this embodiment, the production pipeline is specifically a pipeline equipment used for oil and gas production;

[0024] One end of the pipe is connected to the heat exchanger 1 through the exhaust pipe 1, the air cooled by the heat exchanger 1 is transported to the heat exchanger 2 through the circulation fan, and the air cooled by the heat exchanger 2 is filled into the other end of the pipe through the exhaust pipe 8;

[0025] The heat exchanger 1 cools the hot air passing through it by circulating cooling water; the heat exchanger 2 is connected to the refrigerator 13 through the cooling medium inlet pipe 11 and the cooling medium return pipe 12, and a circulating water pump is installed on the cooling medium inlet pipe 11 or the cooling medium return pipe 12.

[0026] This embodiment discloses an improved device for a heat treatment rapid cooling process, which can achieve the effects of short start-stop response time, large adjustable range of cooling rate and high cooling capacity;

[0027] In this embodiment, in order to meet the use environment of well field operations and extend the service life of oil and gas resource extraction products, a heat treatment rapid cooling process is adopted;

[0028] Working principle:

[0029] When the pipe enters the heat treatment cooling section, the tail end of the pipe is evacuated, and the gas enters heat exchanger one through the exhaust pipe 1, and the heat exchanger one is cooled by circulating water; then it enters the fan; then it passes through heat exchanger two, and the heat exchanger two is cooled by circulating water cooled to -15°C by refrigerator 13, and the temperature of the gas passing through heat exchanger two is cooled to -15°C; finally, the exhaust pipe is used to fill the head of the pipe.

[0030] In a specific implementation, the heat exchanger 1 is provided with a heat exchanger 1 air inlet end 2 connected to the air extraction pipe 1 and a heat exchanger 1 air exhaust end 3 connected to the circulation fan;

[0031] The heat exchanger 1 also includes a water inlet 9 and a water outlet 10 for water cooling; the water inlet 9 and the water outlet 10 are connected to a circulating water pump and a cooling water source respectively.

[0032] In this embodiment, the circulating fan includes a circulating fan air inlet end 4 connected to the exhaust end 3 of the heat exchanger one, and a circulating fan air outlet end 5 connected to the heat exchanger two; the heat exchanger two includes a heat exchanger two air inlet end 6 connected to the circulating fan air outlet end 5, and a heat exchanger two exhaust end 7 connected to the exhaust pipe 8.

[0033] The above embodiments are only descriptions of the preferred methods of the invention, and are not intended to limit the scope of the invention. Without departing from the design spirit of the invention, various modifications and improvements made to the technical solution of the invention by ordinary technicians in this field should fall within the protection scope of the claims of the invention.

Claims

1. An improved device for heat treatment rapid cooling process, characterized in that: It includes a production pipeline, a pipe fitting for circulating and cooling the pipes on the production pipeline, a heat exchanger 1, a circulating fan, a heat exchanger 2, and a refrigerator for cooling the heat exchanger 2; One end of the pipe is connected to the heat exchanger 1 through an exhaust pipe, the air cooled by the heat exchanger 1 is transported to the heat exchanger 2 through a circulating fan, and the air cooled by the heat exchanger 2 is filled into the other end of the pipe through an exhaust pipe; The heat exchanger 1 cools the hot air passing through it by circulating cooling water; The second heat exchanger is connected to the refrigerator through a cooling medium inlet pipe and a cooling medium return pipe.

2. The improved device for the heat treatment rapid cooling process according to claim 1 is characterized in that: The heat exchanger 1 is provided with an air inlet end of the heat exchanger 1 connected to the air extraction pipe and an air exhaust end of the heat exchanger 1 connected to the circulation fan; The heat exchanger 1 also includes a water inlet and a water outlet for water cooling; Or / and, the water inlet and the water outlet are connected to a circulating water pump and a cooling water source respectively.

3. The improved device for heat treatment rapid cooling process according to claim 2 is characterized in that: The circulating fan comprises a circulating fan air inlet end connected to the exhaust end of the first heat exchanger and a circulating fan air outlet end connected to the second heat exchanger.

4. The improved device for the rapid cooling process of heat treatment according to claim 3 is characterized in that: The heat exchanger 2 includes a heat exchanger 2 air inlet end connected to the air outlet end of the circulation fan and a heat exchanger 2 exhaust end connected to the exhaust pipe.

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