CN218345511U

CN218345511U - Well type furnace cooling device

Info

Publication number: CN218345511U
Application number: CN202222238307.8U
Authority: CN
Inventors: 刘乃发; 刘卫国
Original assignee: Tianjin Fengdong Heat Treatment Co ltd
Current assignee: Tianjin Fengdong Heat Treatment Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-01-20
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a pit furnace cooling device belongs to pit furnace technical field, and its technical scheme main points are pit furnace cooling device, include the furnace mantle, be located the inside inner bag of furnace mantle with install the furnace mantle with stirring fan between the inner bag still including being used for the cooling module of inner bag cooling, furnace mantle outer wall connection has temperature alarm and control module, temperature alarm's probe stretches into the furnace mantle with in the cavity that the inner bag formed, control module respectively with cooling module with the temperature alarm electricity is connected, reaches the effect of being convenient for in time stop the cooling.

Description

Well type furnace cooling device

Technical Field

The utility model belongs to the technical field of pit furnace and specifically relates to a pit furnace cooling device is related to.

Background

At present, in the machining production process, metal workpieces are often required to be heated or cooled, the toughness and rigidity of metal materials are changed under the action of temperature change, so that the metal workpieces meet the production standard, and a shaft furnace is one of the main boiler forms in the current machining production.

The pit furnace comprises a furnace cover, an inner container and a stirring fan, a cavity is formed between the furnace cover and the inner container, the inner container is provided with a thermometer, the temperature in the cavity rises when the furnace cover is heated, so that the temperature of the inner container is increased, and the effect of heating metal workpieces is achieved; after the heating operation is finished, the metal workpiece needs to be cooled to a certain specific temperature along with the furnace, so that the physical properties of the metal workpiece meet the production requirements.

In the prior art, the thermometer is high and is not easy to observe, and the temperature of the thermometer is not easy to determine by workers in the cooling process, so that the metal workpiece can be excessively cooled, and the cooling cannot be stopped conveniently and timely.

SUMMERY OF THE UTILITY MODEL

In order to facilitate the timely stop of cooling, the utility model provides a pit furnace cooling device.

The utility model provides a pair of pit furnace cooling device adopts following technical scheme:

a shaft furnace cooling device comprises a furnace cover, an inner container positioned in the furnace cover, a stirring fan arranged between the furnace cover and the inner container, and a cooling assembly used for cooling the inner container, wherein a temperature alarm and a control module are connected to the outer wall of the furnace cover, a probe of the temperature alarm extends into a cavity formed by the furnace cover and the inner container, and the control module is electrically connected with the cooling assembly and the temperature alarm respectively.

By adopting the technical scheme, after the heating work of the metal workpiece is finished, high-temperature air still exists in the cavity between the furnace cover and the inner container, and the inner container can be cooled by the air cooling assembly; when the temperature alarm detects that the temperature is reduced to the specific temperature required by cooling of the metal workpiece, the temperature alarm gives an alarm to enable workers to know the condition in time and transmit an electric signal to the control module, the control module controls the cooling assembly to change the cooling efficiency, resources are saved, and the metal workpiece machining quality is not influenced by excessive cooling easily.

Preferably, the cooling module includes air-blower, intake pipe and the air-cooled coil pipe of being made by heat-resisting material, the air-blower is located the stove outer part, intake pipe one end with the air outlet intercommunication of air-blower, the other end with air-cooled coil pipe intercommunication, just air-cooled coil pipe cover is established on the inner bag lateral wall and with inner bag lateral wall fixed connection.

By adopting the technical scheme, the air blower conveys normal-temperature air into the air-cooled coil pipe through the air inlet pipe and enters the cavity, so that the normal-temperature air is mixed with hot air, and the effect of cooling the cavity and the inner container is achieved; because the air-cooled coil pipe is located in the cavity for a long time, the temperature in the cavity is higher when the heating work of the metal workpiece is carried out, the air-cooled coil pipe is required to have certain heat resistance, and the air-cooled coil pipe is prevented from being damaged due to high temperature, so that the cooling work is influenced.

Preferably, the top of the side wall of the furnace cover is fixedly connected with an exhaust pipe, one end of the exhaust pipe is communicated with the cavity, and the other end of the exhaust pipe is fixedly connected with an exhaust valve.

Through adopting above-mentioned technical scheme, the air after the mixture passes through the exhaust pipe and discharges, makes cavity and external pressure balance, and closes the exhaust valve and can prevent that the hot-air from flowing to the external world when not carrying out cooling work.

Preferably, the air-cooled coil pipes are provided with a plurality of holes for air to enter the cavity.

Through adopting above-mentioned technical scheme, a plurality of air-cooled coil pipes can increase cooling efficiency, make the cool time shorten.

Preferably, the temperature alarm is installed the furnace mantle top, be connected with the display on the temperature alarm, the display with furnace mantle outer wall fixed connection.

Through adopting above-mentioned technical scheme, because hot-air is less than cold air density, hotter air can rise to the cavity top, and the temperature of measuring the cavity top can be convenient for more judge the inside highest temperature of cavity be what, and the display can show the inside temperature of cavity, makes things convenient for the staff to observe.

Preferably, the cooling module further comprises a transition pipe and a diversion piece for controlling the air inlet amount of the air-cooled coil pipe, the transition pipe is communicated with the air inlet pipe and the air-cooled coil pipe, and the diversion piece is installed on the transition pipe.

By adopting the technical scheme, the air guide piece can control the air intake of the air-cooled coil pipe, a worker can observe the temperature in the cavity through the display of the temperature alarm, and when the temperature in the cavity is close to a specific temperature, the air intake of the air-cooled coil pipe can be reduced, and resources are saved.

Preferably, the flow guide piece is a flow guide valve, and the flow guide valve is installed on the transition pipe.

Through adopting above-mentioned technical scheme, staff's accessible adjusts the water conservancy diversion valve to the inside amount of wind of control entering cavity.

Preferably, the outer wall of the air inlet pipe is detachably connected with a cooling pipe, and the cooling pipe is fixedly connected with a cooler for cooling.

Through adopting above-mentioned technical scheme, the cooling tube can cool off the air of carrying in the inlet duct under the effect of cooler, makes the inside air temperature that gets into the cavity lower, improves cooling efficiency.

Preferably, the air-cooled coil pipe is correspondingly sleeved with a plurality of sealing rings at the position where the furnace cover is connected, the outer wall of each sealing ring is abutted to the furnace cover, and the inner wall of each sealing ring is abutted to the outer wall of the air-cooled coil pipe.

Through adopting above-mentioned technical scheme, the leakproofness of stove cover can be improved to the sealing washer, prevents that the air in the cavity from the position effluvium that air-cooled coil pipe and stove cover are connected.

To sum up, the utility model discloses following beneficial effect has:

1. cooling module can cool down the inner bag, and temperature alarm can detect the inside temperature of cavity, and after the temperature of cavity inside dropped to required temperature, temperature alarm reported to the police, and control module controls cooling module and changes cooling efficiency simultaneously, can resources are saved, can prevent again that metal work piece from being excessively cooled down.

2. The air quantity conveyed to the air-cooled coil pipe can be controlled by opening or closing the diversion valve and adjusting the air blowing quantity of the air blower, so that the air quantity can be reduced when the temperature in the cavity is close to the required temperature, and resources are saved.

3. The stirring fan can accelerate the mixing of the air in the cavity in the heating work and the cooling work, so that the temperature in the cavity is more uniform.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present application.

Fig. 2 is a partial structural schematic view intended to show a cooling assembly.

Description of reference numerals:

1. a furnace mantle; 11. an exhaust duct; 111. an exhaust valve; 2. an inner container; 3. a stirring fan; 4. a cooling assembly; 41. a blower; 42. an air inlet pipe; 421. a cooling tube; 43. a transition duct; 44. air-cooled coil pipes; 441. an air outlet; 442. a seal ring; 45. a flow directing valve; 5. a temperature alarm; 51. and a display.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The utility model provides a pit furnace cooling device, as shown in fig. 1 and 2, including furnace mantle 1, inner bag 2, stirring fan 3, cooling module 4, temperature alarm 5 and control module, the furnace mantle 1 cover is established in inner bag 2 outside, forms the cavity between furnace mantle 1 and the inner bag 2, and stirring fan 3 installs in inner bag 2 bottom and is located inside the cavity, and cooling module 4 part is arranged in the cavity between furnace mantle 1 and the inner bag 2 and is connected with furnace mantle 1, inner bag 2.

As shown in figure 1, the top surface of the furnace cover 1 is fixedly connected with an exhaust duct 11, one end of the exhaust duct 11 is communicated with the inside of the furnace cover 1, and the other end is fixedly connected with an exhaust valve.

As shown in fig. 1 and fig. 2, the cooling assembly 4 includes a blowing part, an air inlet pipe 42, a transition pipe 43, an air-cooled coil 44 and a diversion valve 45, the blowing part may be an air blower 41 or an air compressor, the air blower 41 is provided in the embodiment of the present application, the air blower 41 is located outside the furnace mantle 1 and is connected with one end of the air inlet pipe 42, the transition pipe 43 includes two horizontal sections and one vertical section, the vertical section is communicated with one end of the air inlet pipe 42 far away from the air blower 41, a cooling pipe 421 is wound on the outer wall of the transition pipe 43, and the cooling pipe 421 is connected with a cooler for cooling.

As shown in fig. 1 and fig. 2, the air-cooled coil 44 is an annular tubular structure made of heat-resistant material, two air-cooled coils 44 are provided, one of the two air-cooled coils is located at the top end of the outer wall of the inner container 2, the other one is located at the bottom end of the outer wall of the inner container 2, the air-cooled coil 44 is sleeved on the outer wall of the inner container 2 and is coaxial with the inner container 2, the air-cooled coil 44 is fixedly connected with the outer wall of the inner container 2, two horizontal sections of the transition pipe 43 extend into the cavity and are respectively communicated with the two air-cooled coils 44, a plurality of air outlets 441 for air to enter are formed in the circumferential wall of the air-cooled coil 44, a sealing ring 442 is sleeved on the air-cooled coil 44, the outer wall of the sealing ring 442 is abutted to the furnace cover 1, and the inner wall of the air-cooled coil 44 is abutted to the outer wall of the furnace cover.

As shown in fig. 1, the diversion member may be a diversion valve 45 or a circular diversion plate hinged to the inner wall of the transition pipe 43, in this embodiment, the diversion valve 45 is installed on the vertical section of the transition pipe 43 to control the air volume in the air-cooled coil 44 near the bottom of the furnace mantle.

As shown in fig. 1, the temperature alarm 5 is fixedly connected with the top of the furnace cover 1, a probe of the temperature alarm 5 extends into a cavity between the furnace cover 1 and the inner container 2, a display 51 for displaying temperature is mounted on the temperature alarm 5, the temperature alarm 5 is electrically connected with the air blower 41 through a control module, when the temperature alarm 5 detects that the temperature is reduced to 830 ℃, the temperature alarm gives an alarm, and the control module controls the air blower 41 to stop blowing air.

The utility model discloses a use as follows: starting the blower 41 and the temperature alarm 5, opening the exhaust valve 111, enabling the blower 41 to convey air into the air inlet pipe 42, starting the cooler to cool the air in the air inlet pipe 42, conveying the air into the air-cooling coil 44 through the transition pipe 43 by the air inlet pipe 42, enabling the air to enter the cavity from the air outlet hole 441, exchanging cold air output by the air-cooling coil 44 with hot air in the cavity under the action of the stirring fan 3, and exhausting the cold air from the exhaust pipe 11; when cooling operation is not required, the exhaust valve 111 is closed so that hot air does not escape from the cavity.

The worker can judge the cooling condition inside the cavity by observing the display 51, and when the display temperature is close to the specific temperature, the air quantity inside the air inlet pipe 42 blown by the small blower 41 can be adjusted, and the air quantity inside the air-cooling coil 44 can be controlled by adjusting the diversion valve 45.

When the probe of the temperature alarm 5 detects that the temperature is reduced to 830 ℃, the alarm is given, meanwhile, an electric signal is transmitted to the control module, and the control module controls the air blower 41 to be turned off.

The embodiment of this embodiment is the preferred embodiment of the present invention, not limit the protection scope of the present invention according to this, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a pit furnace cooling device, includes stove cover (1), is located inside inner bag (2) of stove cover (1) and installing stove cover (1) with stirring fan (3) between inner bag (2), its characterized in that: still including being used for giving cooling module (4) of inner bag (2) cooling, furnace mantle (1) outer wall connection has temperature alarm (5) and control module, the probe of temperature alarm (5) stretches into furnace mantle (1) with in the cavity that inner bag (2) formed, control module respectively with cooling module (4) with temperature alarm (5) electricity is connected.

2. The shaft furnace cooling device according to claim 1, wherein: cooling unit (4) include air-blower (41), intake pipe (42) and the air-cooled coil pipe (44) of being made by heat-resisting material, air-blower (41) are located stove cover (1) is outside, intake pipe (42) one end with the air outlet intercommunication of air-blower (41), the other end with air-cooled coil pipe (44) intercommunication, just air-cooled coil pipe (44) cover is established on inner bag (2) lateral wall and with inner bag (2) lateral wall fixed connection.

3. The shaft furnace cooling device according to claim 1, wherein: the top of the side wall of the furnace cover (1) is fixedly connected with an exhaust pipe (11), one end of the exhaust pipe (11) is communicated with the cavity, and the other end of the exhaust pipe is fixedly connected with an exhaust valve (111).

4. The shaft furnace cooling device according to claim 2, wherein: the air-cooled coil pipes (44) are provided with a plurality of air outlet holes (441) for allowing air to enter the cavity are formed in the air-cooled coil pipes (44).

5. The shaft furnace cooling device according to claim 1, wherein: temperature alarm (5) are installed stove cover (1) top, be connected with display (51) on temperature alarm (5), display (51) with stove cover (1) outer wall fixed connection.

6. The shaft furnace cooling device according to claim 4, wherein: the cooling assembly (4) further comprises a transition pipe (43) and a flow guide piece used for controlling the air inlet amount of the air-cooled coil pipe (44), the transition pipe (43) is communicated with the air inlet pipe (42) and the air-cooled coil pipe (44), and the flow guide piece is installed on the transition pipe (43).

7. The shaft furnace cooling device according to claim 6, wherein: the flow guide piece is a flow guide valve (45), and the flow guide valve (45) is installed on the transition pipe (43).

8. The shaft furnace cooling device according to claim 2, wherein: intake pipe (42) outer wall can dismantle and be connected with cooling tube (421), cooling tube (421) fixedly connected with is used for the cooler of cooling.

9. The shaft furnace cooling device according to claim 4, wherein: a plurality of the air-cooled coil (44) with the position that the stove cover (1) is connected is correspondingly sleeved with a plurality of sealing rings (442), a plurality of the outer wall of the sealing ring (442) is abutted against the stove cover (1), and the inner wall of the air-cooled coil (44) is abutted against the outer wall of the air-cooled coil (44).