Post-welding heat treatment equipment for liquefied petroleum gas steel cylinder

Abstract

The utility model discloses post-welding heat treatment equipment for a liquefied petroleum gas steel cylinder. The post-welding heat treatment equipment comprises a box body, box covers symmetrically arranged on the inner side of the rear end of the box body, and a bearing plate attached to the upper surface of the lower end of the box body, the inside and the outside of the box body and the box cover are respectively composed of an inner plate and a heat preservation and insulation plate which is pasted and fixed outside the inner plate; a plurality of containing grooves are formed in the upper end of the bearing plate in a staggered mode, and a moving structure is arranged on the lower side of the bearing plate. And a temperature sensing control structure and a waste heat recovery cooling structure are arranged on the inner side of the upper end and the right side of the lower end of the box body correspondingly. According to the post-welding heat treatment equipment for the liquefied petroleum gas steel cylinder, heat preservation and heat insulation can be conveniently conducted on the equipment, temperature sensing, displaying and timing control can be conveniently conducted on heating, the heat treatment effect of the equipment is good, the bearing plate can conveniently move front and back, the liquefied petroleum gas steel cylinder can be conveniently taken and placed, waste heat can be conveniently recycled, and meanwhile the heat treatment efficiency is improved. And the liquefied petroleum gas steel cylinder is cooled.

Description

Technical Field

[0001] This utility model relates to the field of liquefied petroleum gas cylinder technology, specifically to heat treatment equipment for liquefied petroleum gas cylinders after welding. Background Technology

[0002] Liquefied petroleum gas (LPG) is a high-pressure, flammable, and explosive compressed gas. An LPG cylinder is a steel cylinder used to hold LPG, which is a petroleum product. LPG cylinders are made by welding hot-rolled steel plates. To ensure the manufacturing quality of the cylinders, after welding, heat treatment equipment is required to eliminate the welding stress and other residual stress generated during the cylinder manufacturing process.

[0003] However, existing heat treatment equipment for liquefied petroleum gas cylinders after welding is generally not convenient for moving the receiving plate back and forth during use, making it difficult to pick up and put down the liquefied petroleum gas cylinders. Furthermore, it is not convenient to recover and utilize residual heat while simultaneously cooling the liquefied petroleum gas cylinders. Therefore, we propose a heat treatment equipment for liquefied petroleum gas cylinders after welding to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this utility model is to provide a heat treatment device for liquefied petroleum gas cylinders after welding, so as to solve the problems mentioned in the background art. In the process of use, the existing heat treatment device for liquefied petroleum gas cylinders after welding is generally not convenient to move the receiving plate back and forth, it is difficult to pick up and put down the liquefied petroleum gas cylinder, and it is not convenient to recover and utilize the residual heat while cooling down the liquefied petroleum gas cylinder.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a heat treatment device for liquefied petroleum gas cylinders after welding, comprising: a box body, a box cover symmetrically arranged on the inner side of the rear end of the box body, and a receiving plate attached to the upper surface of the lower end of the box body;

[0006] Also includes:

[0007] The box body and the box cover are both made of inner panels and heat insulation boards that are glued and fixed to the outside of the inner panels, and a sealing gasket is glued and fixed to the outer side of the outer end of the box cover.

[0008] The upper end of the receiving plate is provided with multiple placement slots in an alternating pattern, and the lower side of the receiving plate is provided with a movable structure, which includes a fixed plate, an adjusting rod and a motor.

[0009] The upper inner side and lower right side of the housing are respectively provided with a temperature sensing and display control structure and a waste heat recovery and cooling structure. The temperature sensing and display control structure includes a temperature sensor, a display, a timer and a controller. The waste heat recovery and cooling structure includes a solenoid valve, a connecting pipe, a heat exchanger, a pump and a transfer pipe.

[0010] Preferably, the lid is rotatably connected to the inner side of the outer end of the box body, and the box body and the sealing gasket provided behind it are tightly fitted together.

[0011] Preferably, heaters are fixedly installed at equal intervals on the inner sides of both the left and right ends of the housing, and a fixing plate that nests and fits into the housing is fixedly connected to the lower front end of the receiving plate.

[0012] Preferably, an adjusting rod threadedly connected to the inner side of the fixing plate is provided, and the front end of the adjusting rod is engaged and inserted into the housing. Furthermore, a motor is connected to the front side of the adjusting rod via a coupling.

[0013] Preferably, the temperature sensor is embedded in the inner side of the middle of the upper end of the enclosure, and a display, timer, and controller are embedded in the inner side of the upper rear end of the enclosure.

[0014] Preferably, a solenoid valve is fixedly installed on the right side of the upper front end and the right side of the upper rear end of the housing, and the solenoid valve is connected to a connecting pipe by an external thread. The lower end of the connecting pipe is connected to a heat exchanger and a pump respectively by a thread, and a transfer pipe is threaded between the heat exchanger and the pump.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the heat treatment equipment for welding liquefied petroleum gas cylinders is convenient for heat insulation, and convenient for temperature sensing, display and timed control of heating, resulting in good heat treatment effect. It is also convenient for the receiving plate to move back and forth to pick up and put down liquefied petroleum gas cylinders, and convenient for the recovery and utilization of residual heat while cooling down the liquefied petroleum gas cylinders.

[0016] 1. The enclosure consists of a box body, a lid, an inner panel, and a thermal insulation board. The box body and the lid, which is rotatably connected to the inner rear of the box body, are both composed of an inner panel and a thermal insulation board pasted on the outside of the inner panel. A sealing gasket that fits tightly against the box body is pasted and fixed to the outer side of the lid. A temperature sensor, display, timer, and controller are embedded and installed on the inner side of the upper end of the box body. Therefore, it is convenient to perform thermal insulation on the equipment and to perform temperature sensing, display, and timed control of heating, resulting in good heat treatment effect.

[0017] 2. The box is equipped with a housing, a receiving plate, a placement slot, and a fixing plate. The receiving plate with staggered placement slots inside is attached to the upper side of the lower end of the housing. The front lower side of the receiving plate is fixedly connected to a fixing plate that nests and fits into the housing. The fixing plate is threadedly connected to an adjusting rod for mounting a motor on the front side. Therefore, it is easy to move the receiving plate back and forth to pick up and put in liquefied petroleum gas cylinders.

[0018] 3. Equipped with solenoid valves, connecting pipes, heat exchangers, and pumps, the solenoid valves are fixedly installed on the upper front right and upper rear right sides of the housing. The solenoid valves are connected to connecting pipes via external threads. The lower end of the connecting pipe is connected to the heat exchanger, pump, and transfer pipe. This facilitates the recovery and utilization of waste heat while cooling the liquefied petroleum gas cylinders. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a frontal cross-sectional view of the present invention.

[0021] Figure 3 This is a schematic diagram of the right side of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal structure of the box body of this utility model;

[0023] Figure 5 This is a top view sectional structural diagram of the connection between the lid and the body of the box according to this utility model.

[0024] In the diagram: 1. Box body; 2. Box cover; 3. Inner panel; 4. Thermal insulation board; 5. Sealing gasket; 6. Heater; 7. Support plate; 8. Placement slot; 9. Fixing plate; 10. Adjusting rod; 11. Motor; 12. Temperature sensor; 13. Display; 14. Timer; 15. Controller; 16. Solenoid valve; 17. Connecting pipe; 18. Heat exchanger; 19. Pump; 20. Transfer pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-5 This utility model provides a technical solution: a heat treatment device for liquefied petroleum gas cylinders after welding, including a housing 1, a housing cover 2, an inner plate 3, a heat insulation board 4, a sealing gasket 5, a heater 6, a receiving plate 7, a placement groove 8, a fixing plate 9, an adjusting rod 10, a motor 11, a temperature sensor 12, a display 13, a timer 14, a controller 15, a solenoid valve 16, a connecting pipe 17, a heat exchanger 18, a pump 19, and a transfer pipe 20. When using this heat treatment device for liquefied petroleum gas cylinders after welding, if... Figure 1 , Figure 2 and Figure 5 First, the cover 2 connected to the inner rear end of the box 1 can be rotated outward to disconnect the tight connection of the sealing gasket 5 on the outside of the cover 2. Then, the cover 2 can be disconnected from the box 1. Then, the controller 15 installed on the inner rear upper end of the box 1 can be used to control the motor 11 installed on the lower front end of the box 1 to operate. This allows the adjusting rod 10 connected to the rear of the motor 11 via a coupling to rotate under the locking limit of the box 1. Since the outer front end of the adjusting rod 10 is threaded with a fixing plate 9 that is nested and fitted with the box 1, and the fixing plate 9 is fixedly connected with a receiving plate 7 that is fitted with the box 1, the operation of the motor 11 makes it easy for the adjusting rod 10 to drive the fixing plate 9 to move backward under the locking limit of the box 1. This allows the fixing plate 9 to drive the receiving plate 7 to move backward, thus making it easy to nest the liquefied petroleum gas cylinder to be heat-treated in the placement slot 8 that is staggered inside the upper end of the receiving plate 7, completing the placement of the liquefied petroleum gas cylinder.

[0027] like Figure 2 , Figure 4 and Figure 5 After the liquefied petroleum gas cylinder is placed, the controller 15 can control the motor 11 to operate again, causing the adjusting rod 10 to move the receiving plate 7 forward via the fixing plate 9, so that the receiving plate 7 returns to its original position, placing the liquefied petroleum gas cylinder inside the box 1. The box cover 2 can then be rotated again to close the connection with the box 1. Next, the controller 15 can control the heaters 6, which are fixedly installed at equal intervals on the inner sides of the left and right ends of the box 1, to operate and perform heat treatment on the liquefied petroleum gas cylinder. During the heat treatment process, the box 1 and the box cover 2 are both composed of an inner plate 3 and a heat insulation board 4 pasted on the outside of the inner plate 3. A sealing gasket 5 is attached and fixed to the outer side of the outer end, which fits tightly against the box body 1. Therefore, the heat insulation of the heat insulation board 4 and the sealing performance of the sealing gasket 5 are conducive to the heat insulation performance of the equipment. The controller 15 controls the temperature sensor 12 embedded in the inner side of the middle of the upper end of the box body 1 and the display 13 and timer 14 embedded in the inner side of the upper rear end of the box body 1 to work together. This makes it easy for the temperature sensor 12 and the display 13 to sense and display the temperature of the heater 6, and to control the heater 6 in a timed manner through the timer 14, so as to make the heat treatment effect of the liquefied petroleum gas cylinder better.

[0028] like Figure 1 , Figure 2 and Figure 3After the liquefied petroleum gas cylinder is heat-treated, the solenoid valves 16 fixedly installed on the upper right side of the front and upper right side of the housing 1 can be controlled by the controller 15 to operate, so that the connecting pipe 17 connected to the external thread of the solenoid valve 16 is connected to the housing 1. Then, the heat exchanger 18 and the pump 19 installed on the lower right side of the housing 1 can be controlled by the controller 15 to operate. Since the lower end of the connecting pipe 17 is connected to the heat exchanger 18 and the pump 19 respectively, and the heat exchanger 18 and the pump 19 are connected by a transfer pipe 20, the operation of the pump 19 makes it easy for the hot air in the housing 1 to be circulated through the solenoid valve 16 and drawn into the heat exchanger 18 through the transfer pipe 20 for heat exchange. This facilitates the recovery and utilization of waste heat while cooling the liquefied petroleum gas cylinder.

[0029] like Figure 2 and Figure 5 After the liquefied petroleum gas cylinder has been cooled down, the cover 2 can be rotated outwards first, and then the motor 11 can be controlled by the controller 15 to move the receiving plate 7 to the outside of the box body 1 so that the liquefied petroleum gas cylinder can be taken out from the placement slot 8 opened inside the upper end of the receiving plate 7. All the electrical components mentioned above are existing technologies and will not be described in detail here.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art. All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. Post-welding heat treatment equipment for liquefied petroleum gas cylinders, including: Box body (1), box cover (2) symmetrically arranged on the inner side of the rear end of box body (1), and support plate (7) attached to the upper surface of the lower end of box body (1); Its characteristic is that it further includes: The inner and outer sides of the box body (1) and the box cover (2) are both made of inner plate (3) and heat insulation board (4) glued and fixed to the outside of the inner plate (3), and a sealing gasket (5) is glued and fixed to the outer side of the outer end of the box cover (2); The upper end of the receiving plate (7) is provided with multiple placement slots (8) in an alternating manner, and the lower side of the receiving plate (7) is provided with a movable structure, which includes a fixed plate (9), an adjusting rod (10) and a motor (11). The upper inner side and lower right side of the housing (1) are respectively provided with a temperature sensing and display control structure and a waste heat recovery and cooling structure. The temperature sensing and display control structure includes a temperature sensor (12), a display (13), a timer (14) and a controller (15). The waste heat recovery and cooling structure includes a solenoid valve (16), a connecting pipe (17), a heat exchanger (18), a pump (19) and a transfer pipe (20).

2. The liquefied petroleum gas cylinder post-weld heat treatment apparatus according to claim 1, characterized by: The lid (2) is rotatably connected to the inner side of the outer end of the box body (1), and the box body (1) and the sealing gasket (5) provided behind it are tightly fitted together.

3. The heat treatment equipment for liquefied petroleum gas cylinders after welding according to claim 1, characterized in that: Heaters (6) are fixedly installed at equal intervals on the inner sides of the left and right ends of the box (1), and a fixing plate (9) that is nested and fitted with the box (1) is fixedly connected to the lower front end of the receiving plate (7).

4. The liquefied petroleum gas cylinder post-weld heat treatment apparatus according to claim 1, characterized by: An adjusting rod (10) is threaded through the inner side of the fixing plate (9), and the front end of the adjusting rod (10) is engaged and penetrated inside the housing (1). A motor (11) is connected to the front side of the adjusting rod (10) via a coupling.

5. The liquefied petroleum gas cylinder post-weld heat treatment apparatus according to claim 1, characterized by: The temperature sensor (12) is embedded in the inner side of the upper middle part of the housing (1), and the display (13), timer (14) and controller (15) are embedded in the inner side of the upper rear part of the housing (1).

6. The liquefied petroleum gas cylinder post-weld heat treatment apparatus according to claim 1, characterized by: Solenoid valves (16) are fixedly installed on the right side of the upper front end and the right side of the upper rear end of the housing (1), and the solenoid valves (16) are connected to the connecting pipes (17) by external threads. The lower end of the connecting pipes (17) is connected to the heat exchanger (18) and the pump (19) by threads respectively. A transfer pipe (20) is threaded between the heat exchanger (18) and the pump (19).

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