Heating mantle forced cooling
By using a mixed injection structure between a cold air pipe and a room temperature air pipe in the heating cover, the problem of excessive temperature changes during the cooling process of the traditional heating cover is solved, and safe cooling of metal materials is achieved to avoid cracking and damage.
Patent Information
- Application Number
- CN202421176283.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-27
AI Technical Summary
The forced cooling structure of the traditional heating cover cannot adjust the temperature of the injected air, resulting in a large change in temperature in a short period of time, which can easily lead to cracking and damage to metal materials.
A mixed injection structure of a cold air pipe and a room temperature air pipe is adopted to adjust the temperature of the injected air by controlling the intake amount of both to avoid excessive temperature changes.
It realizes flexible adjustment and cooling of metal materials in the heating cover, avoids cracking and damage, and improves the safety of the cooling process.
Smart Images
Figure CN222342930U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heating hood cooling, in particular to forced cooling of a heating hood. Background Art
[0002] A heating mantle is a device used to heat experimental samples or containers. It is usually made of metal, glass or ceramic, with a heating element installed inside. The sample or container can be heated by controlling the temperature of the heating element. This device is often used in the heating process in chemical laboratories, biological laboratories or industrial production.
[0003] The prior art has the following deficiencies: the traditional forced cooling structure of the heating hood usually adopts a cold air duct, through which cold air is continuously injected into the heating hood to achieve the effect of forced cooling of the heating hood and the internal materials. For some special metal materials, if the temperature changes greatly in a short period of time during the cooling process, it is easy to cause the metal materials to crack and be damaged. The traditional cold air duct can only inject specific low-temperature air and cannot adjust the temperature of the injected air. Therefore, the traditional forced cooling structure is unable to slowly cool the metal materials in the heating hood, resulting in the problem that the metal materials are prone to cracking during the cooling process.
[0004] Therefore, it is necessary to invent the forced cooling of the heating cover. Utility Model Content
[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: forced cooling of a heating hood, comprising a heating hood, a cover being rotatably mounted on the top surface of the heating hood, an air intake pipe being fixedly mounted on the side surface of the outer wall of the heating hood, an end of the air intake pipe away from the heating hood being fixedly connected to a connecting valve, an end of the connecting valve away from the air intake pipe being connected to a transfer cabin, a side of the transfer cabin away from the air intake pipe being connected to a cold air pipe and a normal temperature air pipe, and the gases input from the cold air pipe and the normal temperature air pipe can be mixed in the connecting valve and injected into the heating hood.
[0006] Preferably, the connecting valve comprises a valve tube, a square plate is fixedly mounted on one end of the valve tube close to the air intake pipe, and a first flange is fixedly mounted on the other end, and the square plate is fixedly connected to the air intake pipe by bolts.
[0007] Preferably, a ball shell is embedded and fixedly installed in the middle of the inner wall of the valve tube, openings are provided at both ends of the ball shell, the openings at both ends of the ball shell are connected to the inner wall of the valve tube, a ball valve is rotatably installed in the ball shell, and a channel penetrating the ball valve is provided in the center of the ball valve.
[0008] Preferably, a round tube is fixedly mounted on the outer wall of the valve tube just above the ball shell, the lower end of the round tube is connected to the inner wall of the valve tube, and a sleeve is fixedly mounted on the upper end of the round tube, the upper end of the round tube is connected to the inner wall of the sleeve.
[0009] Preferably, a motor is fixedly installed in the casing, an output end at the lower end of the motor passes through a round tube and is inserted into a valve tube, and the output end of the motor passes through the ball shell and is fixedly connected to the ball valve.
[0010] Preferably, a second flange is fixedly installed on one side of the transfer cabin, the second flange is fixedly connected to the first flange by bolts, a pressure relief pipe is fixedly installed on the top of the transfer cabin, and a one-way valve is fixedly installed in the pressure relief pipe.
[0011] Preferably, a sealing rubber ring is embedded and installed on the outer edge of the bottom surface of the cover, and the cover is sealed and connected to the heating cover through the sealing rubber ring. When the heating cover stops heating, the connecting valve is opened, and the pressure relief pipe can balance the air pressure inside and outside the heating cover.
[0012] Preferably, a spiral ramp is fixedly installed in the central channel of the ball valve, the end of the cold air pipe away from the transfer cabin is connected to the low-temperature nitrogen tank, and the end of the normal temperature air pipe away from the transfer cabin is connected to the normal temperature gas tank, and the gases input by the cold air pipe and the normal temperature air pipe can be mixed at the spiral ramp in the central channel of the ball valve.
[0013] The beneficial effect of the utility model is that two air inlet pipes, a cold air pipe and a normal temperature air pipe, are set, and the air intake volume of the cold air pipe and the normal temperature air pipe is controlled respectively to achieve the effect of flexibly adjusting the temperature of the injected air, thereby avoiding large temperature changes in a short period of time that may cause cracking and damage to metal materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 A front view of the heating cover forced cooling provided by the utility model;
[0015] Figure 2 A front view of the cooling structure of the heating cover forced cooling provided by the utility model;
[0016] Figure 3 A side view of the cooling structure of the heating cover forced cooling provided by the utility model;
[0017] Figure 4 A schematic diagram of the internal structure of the cooling structure of the heating cover forced cooling provided by the utility model;
[0018] Figure 5 An exploded view of the connecting valve for forced cooling of the heating cover provided by the utility model;
[0019] Figure 6 A cross-sectional view of a transfer cabin for forced cooling of a heating hood provided by the utility model.
[0020] In the figure: a heating hood 11, a cover 12, an air inlet pipe 13, a valve pipe 21, a square plate 22, a first flange 23, a ball shell 24, a round tube 25, a sleeve shell 26, a motor 17, a ball valve 28, a spiral ramp 29, a transfer cabin 31, a second flange 32, a cold air pipe 33, a normal temperature air pipe 34, and a pressure relief pipe 35. DETAILED DESCRIPTION
[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.
[0022] Example 1
[0023] like Figure 1-3 As shown, the heating hood forced cooling in the embodiment of the first aspect of the utility model comprises a heating hood 11, a cover 12 is rotatably mounted on the top surface of the heating hood 11, an air inlet pipe 13 is fixedly mounted on the side of the outer wall of the heating hood 11, and an end of the air inlet pipe 13 away from the heating hood 11 is fixedly connected to a connecting valve, and an end of the connecting valve away from the air inlet pipe 13 is connected to a transfer cabin 31, and a side of the transfer cabin 31 away from the air inlet pipe 13 is connected to a cold air pipe 33 and a normal temperature air pipe 34, and the gas input from the cold air pipe 33 and the normal temperature air pipe 34 can be mixed in the connecting valve and injected into the heating hood 11.
[0024] In the above embodiment, it should be noted that the heating hood 11 is capable of heating the internal material, which belongs to the prior art. The cover 12 is a sealed cover. The connecting valve is opened, and the cold air pipe 33 and the normal temperature air pipe 34 are started. The gas in the cold air pipe 33 and the normal temperature air pipe 34 are fully mixed in the transfer cabin 31 and the connecting valve and injected into the heating hood 11 through the air intake pipe 13 to achieve the effect of cooling the material in the heating hood 11. By controlling the air intake volume of the cold air pipe 33 and the normal temperature air pipe 34 respectively, the temperature of the injected air can be flexibly adjusted to avoid cracking and damage of the metal material due to large temperature changes in a short period of time.
[0025] Example 2
[0026] like Figure 2-Figure 5As shown, the heating cover is forced to cool, including all the contents of Example 1. In addition, the communication valve includes a valve pipe 21, one end of the valve pipe 21 close to the intake pipe 13 is fixedly installed with a square plate 22, and the other end is fixedly installed with a first flange 23. The square plate 22 is fixedly connected to the intake pipe 13 by bolts. A ball shell 24 is embedded and fixedly installed in the middle of the inner wall of the valve pipe 21. Openings are set at both ends of the ball shell 24. The openings at both ends of the ball shell 24 are connected to the inner wall of the valve pipe 21. A ball is rotatably installed in the ball shell 24. A valve 28 is provided in the center of the ball valve 28 with a passage penetrating the ball valve 28. A round tube 25 is fixedly installed on the outer wall of the valve tube 21 just above the ball shell 24. The lower end of the round tube 25 is connected to the inner wall of the valve tube 21. A sleeve 26 is fixedly installed on the upper end of the round tube 25. The upper end of the round tube 25 is connected to the inner wall of the sleeve 26. A motor 17 is fixedly installed in the sleeve 26. The output end of the lower end of the motor 17 passes through the round tube 25 and is inserted into the valve tube 21. The output end of the motor 17 passes through the ball shell 24 and is fixedly connected to the ball valve 28.
[0027] In the above embodiment, it should be noted that the round tube 25 and the casing 26 protect the motor 17 , and the ball valve 28 is driven to rotate in the ball casing 24 by starting the motor 17 to open or close the ball valve 28 .
[0028] Example 3
[0029] like Figure 2-Figure 4 and Figure 6 As shown, the heating hood is forced to cool, including all the contents of Example 2. In addition, a second flange 32 is fixedly installed on one side of the transfer cabin 31, and the second flange 32 is fixedly connected to the first flange 23 by bolts. A pressure relief pipe 35 is fixedly installed on the top of the transfer cabin 31, and a one-way valve is fixedly installed in the pressure relief pipe 35. A sealing rubber ring is embedded and installed on the outer edge of the bottom surface of the cover 12. The cover 12 is sealed and connected to the heating hood 11 through the sealing rubber ring. When the heating hood 11 stops heating, the connecting valve is opened, and the pressure relief pipe 35 can balance the air pressure inside and outside the heating hood 11.
[0030] In the above embodiment, it should be noted that the pressure relief pipe 35 has the function of balancing the air pressure inside and outside the heating hood 11. A one-way valve is arranged in the pressure relief pipe 35. The airflow can only flow from the outside along the pressure relief pipe 35 to the transfer cabin 31. When the heating hood 11 stops heating, the air in the heating hood 11 shrinks rapidly during the cooling process, resulting in an imbalance in the air pressure inside and outside the heating hood 11, which makes the cover 12 unable to be opened. By rotating the ball valve 28 to connect the transfer cabin 3 and the heating hood 11, the external air flows along the pressure relief pipe 35 to the transfer cabin 31, and then flows into the heating hood 11 along the central channel of the ball valve 28 through the air inlet pipe 13, so as to achieve the effect of balancing the internal and external air pressures and enabling the cover 12 to be opened smoothly.
[0031] Example 4
[0032] like Figure 5 and Figure 6 As shown, the heating hood forces cooling, including all the contents of Example 2. In addition, a spiral ramp 29 is fixedly installed in the central channel of the ball valve 28, and the end of the cold air pipe 33 away from the transfer cabin 31 is connected to the low-temperature nitrogen tank, and the end of the normal temperature air pipe 34 away from the transfer cabin 31 is connected to the normal temperature gas tank. The gas input by the cold air pipe 33 and the normal temperature air pipe 34 can be mixed at the spiral ramp 29 in the central channel of the ball valve 28.
[0033] In the above embodiment, it should be noted that after the normal temperature gas input from the normal temperature gas pipe 34 and the low temperature nitrogen gas input from the cold air pipe 33 are input into the transfer cabin 3, the two gases will enter the central channel of the ball valve 28 and be fully mixed through the spiral ramp 29, and finally flow into the heating hood 11 through the air inlet pipe 13.
[0034] The use process of the utility model is as follows: a technician in this field puts the material into the heating cover 11 and heats it to a specified temperature, then stops heating and opens the connecting valve. The external air flows along the pressure relief pipe 35 to the transfer cabin 31, and then flows into the heating cover 11 through the intake pipe 13 along the central channel of the ball valve 28 to balance the internal and external air pressures. Then the cold air pipe 33 and the normal temperature air pipe 34 are started. The gases in the cold air pipe 33 and the normal temperature air pipe 34 are fully mixed in the transfer cabin 31 and the connecting valve and injected into the heating cover 11 through the intake pipe 13 to cool the material in the heating cover 11. The air intake volume of the cold air pipe 33 and the normal temperature air pipe 34 is controlled separately to flexibly adjust the temperature of the injected air to avoid large temperature changes in a short period of time that may cause cracking and damage of the metal material.
[0035] The above is only a preferred embodiment of the utility model. Any person skilled in the art may modify the utility model by using the above technical solution or modify it into an equivalent technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the utility model shall fall within the scope of protection claimed by the utility model.
Claims
1. A heating hood forced cooling system, comprising a heating hood (11), a cover (12) being rotatably mounted on the top surface of the heating hood (11), and an air inlet pipe (13) being fixedly mounted on the side surface of the outer wall of the heating hood (11), characterized in that: One end of the air inlet pipe (13) away from the heating cover (11) is fixedly connected to a connecting valve, and one end of the connecting valve away from the air inlet pipe (13) is connected to a transfer cabin (31). A side of the transfer cabin (31) away from the air inlet pipe (13) is connected to a cold air pipe (33) and a normal temperature air pipe (34), and the gases input from the cold air pipe (33) and the normal temperature air pipe (34) can be mixed in the connecting valve and injected into the heating cover (11).
2. The forced cooling of the heating hood according to claim 1 is characterized in that: The connecting valve comprises a valve pipe (21), one end of the valve pipe (21) close to the air intake pipe (13) is fixedly mounted with a square plate (22), and the other end is fixedly mounted with a first flange plate (23), and the square plate (22) is fixedly connected to the air intake pipe (13) by bolts.
3. The forced cooling of the heating hood according to claim 2 is characterized in that: A ball shell (24) is embedded and fixedly installed in the middle of the inner wall of the valve tube (21), and openings are arranged at both ends of the ball shell (24). The openings at both ends of the ball shell (24) are connected to the inner wall of the valve tube (21). A ball valve (28) is rotatably installed in the ball shell (24), and a channel penetrating the ball valve (28) is arranged in the center of the ball valve (28).
4. The forced cooling of the heating hood according to claim 3 is characterized in that: A round tube (25) is fixedly mounted on the outer wall of the valve tube (21) directly above the ball shell (24); the lower end of the round tube (25) is connected to the inner wall of the valve tube (21); a sleeve shell (26) is fixedly mounted on the upper end of the round tube (25); the upper end of the round tube (25) is connected to the inner wall of the sleeve shell (26).
5. The forced cooling of the heating hood according to claim 4 is characterized in that: The motor (17) is fixedly installed in the sleeve shell (26), and the output end of the motor (17) passes through the round tube (25) and is inserted into the valve tube (21). The output end of the motor (17) passes through the ball shell (24) and is fixedly connected to the ball valve (28).
6. The forced cooling of the heating hood according to claim 2 is characterized in that: A second flange (32) is fixedly mounted on one side of the transfer cabin (31), and the second flange (32) is fixedly connected to the first flange (23) via bolts. A pressure relief pipe (35) is fixedly mounted on the top of the transfer cabin (31), and a one-way valve is fixedly mounted inside the pressure relief pipe (35).
7. The forced cooling of the heating hood according to claim 6 is characterized in that: A sealing rubber ring is embedded and installed on the outer edge of the bottom surface of the cover (12), and the cover (12) is sealed and connected to the heating cover (11) via the sealing rubber ring. When the heating cover (11) stops heating, the connecting valve is opened, and the pressure relief pipe (35) can balance the air pressure inside and outside the heating cover (11).
8. The forced cooling of the heating hood according to claim 3 is characterized in that: A spiral ramp (29) is fixedly installed in the central channel of the ball valve (28); one end of the cold air pipe (33) away from the transfer cabin (31) is connected to a low-temperature nitrogen tank; one end of the normal temperature air pipe (34) away from the transfer cabin (31) is connected to a normal temperature gas tank; the gases input from the cold air pipe (33) and the normal temperature air pipe (34) can be mixed at the spiral ramp (29) in the central channel of the ball valve (28).