Waste heat recycling device

Abstract

The invention belongs to the technical field of boiler waste heat treatment equipment, and particularly relates to a waste heat recycling device which comprises a heat exchange unit, a waste heat recovery unit and a waste heat recovery unit. The heat exchange unit comprises a shell internally provided with a cavity used for containing a heat source, and the air inlet end of the cavity communicates with the air outlet end of the pressurizing pipe; the leading-out pipe is fixed to the end, away from the pressurizing pipe, of the shell, and the leading-out pipe communicates with the cavity; the spiral-fin combined type heat exchange unit is arranged in the cavity, the spiral-fin combined type heat exchange unit exchanges heat with the cavity, and a refrigerant flows in the spiral-fin combined type heat exchange unit; micropores used for forming local jet flow are formed in the fin surfaces of the spiral-fin combined type heat exchange units. And the monitoring unit is used for acquiring environmental parameters in the chamber. Heat flow local jet flow is triggered through the micropores, turbulent vortex is formed, a laminar flow boundary layer is broken, and the heat transfer coefficient is increased.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of boiler waste heat treatment equipment, and particularly relates to a waste heat recycling device. BACKGROUND

[0002] As a core thermal equipment in industrial production, a boiler is essentially a process of converting fuel chemical energy into heat energy, and outputs three forms of heat energy carriers: high-pressure steam, high-temperature liquid medium (hot water of 100 DEG C or above) and organic heat-carrying medium under specific working conditions. The output heat energy carriers can be directly supplied to process heating requirements (such as chemical reaction kettles and food sterilization lines) or used as a medium for secondary energy conversion.

[0003] The existing waste heat recovery device adopts a traditional tube-shell or plate heat exchange structure, and has the following defects: low heat exchange efficiency: the fluid is easy to form a laminar flow in the straight pipeline, resulting in insufficient heat transfer coefficient; easy to form carbon deposition and scale: the particulate matter in the high-temperature exhaust gas is deposited on the heat exchange surface, and the device needs to be stopped for cleaning; high maintenance cost: the overall structure cannot replace the damaged parts locally.

[0004] Therefore, there is an urgent need for a waste heat recycling device. SUMMARY

[0005] The application aims to provide a waste heat recycling device to solve the above problems.

[0006] To achieve the above-mentioned purpose, the application provides the following solutions.

[0007] A waste heat recycling device comprises:

[0008] A heat exchange unit, an inlet end of which is communicated with an outlet of a heat source of a boiler through a booster pipe;

[0009] The heat exchange unit comprises:

[0010] A shell, an inner cavity of which is arranged to accommodate the heat source, and an inlet end of the cavity is communicated with an outlet end of the booster pipe;

[0011] A lead-out pipe, which is fixed at an end of the shell away from the booster pipe, and the lead-out pipe is communicated with the cavity;

[0012] A spiral-fin composite heat exchange unit, which is arranged in the cavity, and the spiral-fin composite heat exchange unit is arranged in heat exchange with the cavity, and a refrigerant flows in the spiral-fin composite heat exchange unit;

[0013] The fin surface of the spiral-fin composite heat exchange unit is provided with micro-holes for forming local jet flow;

[0014] A monitoring unit is arranged to acquire environmental parameters in the chamber, including at least temperature and air pressure.

[0015] Optionally, the spiral-fin combined heat exchange unit comprises:

[0016] A spiral duct is fixed in the chamber and arranged in heat exchange with the chamber, and the spiral duct is arranged for refrigerant flow.

[0017] A plurality of radial fin groups are arranged in the direction of the spiral duct and staggered, the spiral duct and the radial fin groups are fixed, the radial fin groups are arranged in heat exchange with the chamber, and the radial fin groups are arranged in exchange with the spiral duct.

[0018] Optionally, the spiral duct is a tapered spiral structure, and the spiral duct has a large-diameter end close to one end of the booster pipe.

[0019] Optionally, the radial fin group comprises at least one radial fin, the radial fin is fixed to the outer wall of the spiral duct, the radial fin is arranged in heat exchange with the spiral duct, and the radial fin is arranged in heat exchange with the chamber.

[0020] Optionally, the radial fin comprises a windward surface and a leeward surface, the windward surface of the radial fin is arranged towards the direction of the booster pipe, the radial fin is rectangular, and the angle between the leeward surface of the radial fin and the spiral duct is 15°-30°.

[0021] Optionally,

[0022] The heights of the plurality of radial fin groups gradually decrease in the direction away from the booster pipe.

[0023] Optionally, a plurality of fin micro-holes arranged in a matrix are formed on the surface of the radial fin.

[0024] Optionally, the shell is fixed with a front head and a rear head at two ends thereof.

[0025] The shell is threadedly fixed with the front head.

[0026] The shell is threadedly fixed with the rear head.

[0027] Optionally, the outer wall of the shell is wrapped with a thermal insulation layer, and the shell is communicated with a pressure relief valve.

[0028] Optionally, the monitoring unit comprises a pressure detection mechanism and a temperature detection mechanism, the detection ends of the pressure detection mechanism and the temperature detection mechanism are arranged in the chamber, and the pressure detection mechanism and the temperature detection mechanism are arranged to detect the temperature and air pressure in the chamber.

[0029] Compared with the prior art, the present application has the following advantages and technical effects:

[0030] In use, the hot gas in the boiler enters the shell through the booster pipe and exchanges heat with the refrigerant through the spiral-fin composite heat exchange unit. When the hot stream exchanges heat with the absorbing liquid flowing through the fins, on the one hand, the fins increase the heat exchange area, and on the other hand, the pressure difference inside and outside the micropore will cause local jet flow when the hot stream flows through the micropore, forming a turbulent vortex to break the laminar boundary layer and improve the heat transfer coefficient; at the same time, the micropore can increase the surface area of the fin. Secondly, the turbulent flow generated by the micropore can increase the shear force of the fluid on the surface of the fin, making it difficult for particles to adhere, and having a self-cleaning function. After the action of the spiral-fin composite heat exchange unit, the surface area of the refrigerant in contact with the hot stream is greatly increased, and the outlet water temperature is increased to the ideal state after downstream heat exchange, and under the assistance of the booster pipe, the hot stream can continue to flow in the channel in the shell, so that the hot stream can be smoothly guided. In this way, the hot stream and the spiral-fin composite heat exchange unit can be fully exchanged under the premise of ensuring the smooth movement of the hot stream, so that the refrigerant can absorb the heat of the hot stream, thereby improving the heat exchange efficiency in this way. The refrigerant is heated and sent to the external hot equipment, which can fully utilize the waste heat in the boiler, thereby reducing the temperature of the hot stream discharged from the shell and reducing the processing cost of the exhaust fluid processing equipment in the later treatment. Through the reduction of cost, the burden of enterprises can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor:

[0032] Figure 1 It is a structural schematic diagram of the embodiment 1 of the present application;

[0033] Figure 2 It is a sectional view of the shell and the spiral-fin composite heat exchange unit of the present application;

[0034] Figure 3 It is a structure diagram of the fin micropore of the present application;

[0035] Figure 4 It is a structural schematic diagram of the embodiment 2 of the present application;

[0036] Figure 5 It is a structural schematic diagram of the embodiment 3 of the present application;

[0037] Wherein, 1, shell; 2, front head; 3, rear head; 4, flow guide pipe; 5, lead-out pipe; 6, booster pipe; 7, hot stream introduction pipe; 8, pressure relief valve; 9, pressure detection mechanism; 10, temperature detection mechanism; 11, spiral flow guide pipe; 12, radial fin group; 13, fin micro hole; 14, boiler; 15, air hole; 16, partition plate. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0039] In order to make the above objectives, characteristics and advantages of the present application more apparent, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0040] Embodiment 1

[0041] Reference Figures 1 to 3 The present embodiment discloses a waste heat recycling device, comprising:

[0042] The heat exchange unit is in communication with the heat source outlet of the boiler 14 through the booster pipe 6 at the air inlet end.

[0043] The heat exchange unit comprises:

[0044] The shell 1 is internally provided with a chamber for accommodating a heat source, and the air inlet end of the chamber is in communication with the air outlet end of the booster pipe 6.

[0045] The lead-out pipe 5 is fixed at one end of the shell 1 away from the booster pipe 6, and the lead-out pipe 5 is in communication with the chamber.

[0046] The spiral-fin composite heat exchange unit is arranged in the chamber, and the spiral-fin composite heat exchange unit is in heat exchange with the chamber, and the spiral-fin composite heat exchange unit flows with a refrigerant.

[0047] The fin surface of the spiral-fin composite heat exchange unit is provided with micro holes for forming local jets.

[0048] The monitoring unit is used to acquire environmental parameters in the chamber, and the environmental parameters at least include temperature parameters and air pressure parameters.

[0049] The monitoring unit is used to detect the temperature and pressure in the chamber.

[0050] In use, the hot gas in the boiler 14 enters the housing 1 through the booster pipe 6 and exchanges heat with the coolant through the spiral-fin composite heat exchange unit. When the hot stream exchanges heat with the absorbing liquid through the fins, on the one hand, the fins increase the heat exchange area, and on the other hand, when the hot stream flows through the micropores, the pressure difference between the inside and outside of the micropores will cause local jet flow, forming turbulent vortex, breaking the laminar boundary layer and improving the heat transfer coefficient; at the same time, the turbulent flow generated by the micropores can increase the shear force of the fluid on the surface of the fins, making it difficult for particles to adhere, and having a self-cleaning function. After the action of the spiral-fin composite heat exchange unit, the surface area of the coolant in contact with the hot stream is greatly increased, and the outlet water temperature is increased to the ideal state after the heat exchange in the flow direction, and under the assistance of the booster pipe 6, the hot stream can continue to flow in the channel in the housing 1, so that the hot stream can be smoothly guided. In this way, the hot stream and the spiral-fin composite heat exchange unit can be fully exchanged under the premise of ensuring the smooth movement of the hot stream, so that the coolant can absorb the heat of the hot stream, thereby improving the heat exchange efficiency. The heated coolant is sent to the external heat-using equipment, and the waste heat in the boiler can be fully and effectively utilized, thereby reducing the temperature of the hot stream discharged from the housing 1 and reducing the processing cost of the exhaust fluid in the waste treatment equipment in the later stage. Through the reduction of cost, the burden of enterprises can be reduced.

[0051] The booster pipe 6 is made of high-temperature resistant material.

[0052] As an optional embodiment, the spiral-fin composite heat exchange unit comprises:

[0053] The spiral guide pipe 11 is fixed in the chamber, the spiral guide pipe 11 is in heat exchange with the chamber, and the spiral guide pipe 11 is used for the flow of the coolant;

[0054] The plurality of radial fin groups 12 are arranged in the direction of the spiral guide pipe 11 and are staggered, the spiral guide pipe 11 is fixed with the radial fin groups 12, the radial fin groups 12 are in heat exchange with the chamber, and the radial fin groups 12 are in exchange with the spiral guide pipe 11.

[0055] As an optional embodiment, the spiral guide pipe 11 is a tapered spiral line structure, and the end of the spiral guide pipe 11 close to the booster pipe 6 is a large-diameter end.

[0056] As an optional embodiment, the radial fin group 12 comprises at least one radial fin, the radial fin is fixed with the outer wall of the spiral guide pipe 11, the radial fin is in heat exchange with the spiral guide pipe 11, and the radial fin is in heat exchange with the chamber.

[0057] As an optional implementation, the radial fin includes a windward surface and a leeward surface, the windward surface of the radial fin is arranged towards the booster pipe 6, the radial fin is rectangular, and the angle between the leeward surface of the radial fin and the spiral flow guide pipe 11 is 15°-30°.

[0058] As an optional implementation, the height of the radial fin group 12 gradually decreases in the direction away from the booster pipe 6.

[0059] As an optional implementation, the radial fin surface is provided with a plurality of fin micro-holes 13 arranged in a matrix.

[0060] The spiral-fin combined heat exchange unit is composed of the spiral flow guide pipe 11 and the radial fin group 12, the spiral flow guide pipe 11 is wound with a tapered spiral line, the radial fin group 12 is staggered along the outer wall of the spiral flow guide pipe, the fin height gradually decreases from the inlet end to the outlet end, and a turbulent flow strengthening area is formed.

[0061] Further, the inner wall of the spiral flow guide pipe 11 is provided with a nano-aluminum oxide coating (thickness 50-100 μm), and the surface roughness Ra is ≤0.8 μm.

[0062] The angle between the radial fin group 12 and the spiral flow guide pipe 11 is 15°-30°, the fin is rectangular, and the fin surface is provided with a fin micro-hole 13 array (pore diameter 0.5-1 mm).

[0063] The booster pipe 6 is funnel-shaped, has a relatively large-diameter end and a small-diameter end, the large-diameter end is connected to the boiler through the hot flow introduction pipe 7, the small-diameter end is connected to the shell 1 through the flow guide pipe 4, the discharge pipe 5 is connected to the waste treatment equipment, the flow guide pipe 4 and the discharge pipe 5 are located on opposite sides of the shell 1, the inner wall of the booster pipe 6 is provided with a high-temperature-resistant filter membrane, which can adsorb the particulate matters in the hot flow and facilitate replacement of the filter membrane, and the booster pipe 6 is detachably connected to the hot flow introduction pipe 7 and the flow guide pipe 4, which facilitates installation and maintenance of the filter membrane.

[0064] The filter membrane is attached to the inner wall of the booster pipe 6 in a mechanically fixed manner. It should be noted that the filter membrane can be configured as any suitable filter membrane in the prior art that can adsorb particulate matters in the fluid discharged by the boiler 14. Since it is prior art, it will not be described in detail here.

[0065] Further, the refrigerant is water.

[0066] The tapered spiral flow guide pipe 11 is combined with the radial fin group 12 to break the laminar boundary layer through fluid dynamics optimization. The cooling water enters from the inlet of the spiral flow guide pipe 11, and the pressure difference between the inside and outside of the hole will cause local jet flow when the fluid flows through the fin micro-hole 13, forming a turbulent vortex, breaking the laminar boundary layer, and improving the heat transfer coefficient; at the same time, the dense micro-holes (density about 200-400 holes / cm2 )Can increase fin surface area about 8%-12%. Secondly, the turbulent flow generated by the micropore can improve the shear force of the fluid on the fin surface, making it difficult for particles to adhere, with a self-cleaning function. Through the combined action of the spiral flow guide pipe 11 and the radial fin group 12, the surface area of the cooling water in contact with the hot stream is greatly increased, and the outlet water temperature is increased to the ideal state after heat exchange. With the help of the booster pipe 6, the hot stream can continue to flow in the channel in the shell 1, so that the hot stream can be smoothly guided. In this way, the hot stream and the spiral flow guide pipe 11 can be fully exchanged under the premise of ensuring the smooth movement of the hot stream, so that the refrigerant can absorb the heat of the hot stream, thereby improving the heat exchange efficiency. The refrigerant in the spiral flow guide pipe 11 can be sent to the external heat equipment after being heated. In this way, the waste heat in the boiler can be fully utilized, thereby reducing the temperature of the hot stream when it is discharged from the shell, and reducing the processing cost of the waste treatment equipment for the discharged fluid. Through cost reduction, enterprises can reduce the burden and actively respond to the energy-saving and environmental protection policy call of the state and local governments, which is of great significance to the economy and the environment.

[0067] As an optional implementation manner, the shell 1 is fixed with a front head 2 and a rear head 3 at two ends respectively;

[0068] The shell 1 is threadedly fixed with the front head 2;

[0069] The shell 1 is threadedly fixed with the rear head 3.

[0070] The shell 1 has opposite first and second ends, the first end is provided with the front head 2, and the second end is provided with the rear head 3.

[0071] The outer periphery of the shell 1 and close to the front head 2 is provided with a flow guide pipe 4, and the outer periphery of the shell 1 and close to the rear head 3 is provided with a discharge pipe 5. This design can form a high-low difference, so that the hot stream can flow smoothly, and finally be discharged from the shell 1 through the discharge pipe 5.

[0072] As an optional implementation manner, the outer wall of the shell 1 is wrapped with a heat preservation layer, and the shell 1 is communicated with a pressure relief valve 8.

[0073] The outer wall of the shell 1 is provided with a heat preservation layer, and the heat preservation layer is detachably covered. This design can replace the heat preservation layer according to the use time and use scene of the heat preservation layer, so as to reduce heat loss and ensure the utilization effect of waste heat. Specifically, for the setting of the heat preservation layer, those skilled in the art can make routine improvements on the basis of the prior art.

[0074] As an optional implementation, the monitoring unit comprises a pressure detection mechanism 9 and a temperature detection mechanism 10, detection ends of the pressure detection mechanism 9 and the temperature detection mechanism 10 are arranged in the chamber, and the pressure detection mechanism 9 and the temperature detection mechanism 10 are used to detect the temperature and the air pressure in the chamber.

[0075] The shell 1 is provided with a pressure relief valve 8, a pressure detection mechanism 9 for detecting current pressure information in the shell, and a temperature detection mechanism 10 for detecting current temperature information in the shell; the pressure relief valve 8, the pressure detection mechanism 9, and the temperature detection mechanism 10 are respectively communicatively connected to the controller, and the controller controls the pressure relief valve 8 to perform corresponding actions according to the received current temperature information and current pressure information, so that corresponding operations can be performed in time even in the case of excessively high / low temperature and excessively large / small pressure, and the effectiveness and safety of the waste heat recycling process are ensured; the temperature detection mechanism 10 is configured as a temperature sensor or a temperature detector. The pressure detection mechanism 9 is configured as a pressure sensor.

[0076] The controller can be configured as a PLC (Programmable Logic Controller), and in other embodiments, it can also be an integrated circuit chip having a signal processing capability. In the implementation process, the above functions can be completed by the integrated logic circuit of the hardware in the controller or the instructions in the form of software. The controller described above can also be a general-purpose processor, including a CPU (Central Processing Unit), an NP (Network Processor), etc.; it can also be a DSP (Digital Signal Processor), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. Those skilled in the art can make routine improvements on the basis of the prior art to obtain. The pressure relief valve 8, the pressure detection mechanism 9, the temperature detection mechanism 10, and the controller can transmit data through various wireless transmission protocols known in the art such as GPRS, WiFi, Bluetooth, etc., so as to reduce the laying of signal lines. Of course, wired transmission of data can also be achieved through communication cables, and the present application does not limit this.

[0077] Embodiment 2:

[0078] Reference Figure 4The embodiment is different from the embodiment 1 in that a partition plate 16 is arranged in the chamber, the partition plate 16 divides the chamber into an air inlet chamber and a heat exchange chamber, the spiral-fin combined heat exchange unit is arranged in the heat exchange chamber, the outlet end of the flow guide pipe 4 is communicated with the air inlet chamber, and a plurality of air holes 15 are arranged on the partition plate 16.

[0079] By preferentially gathering the heat flow in the air inlet chamber, and then uniformly entering the heat exchange chamber through the plurality of air holes 15 arranged on the partition plate 16, the temperature distribution in the heat exchange chamber is more uniform, and the heat exchange effect is further improved.

[0080] Embodiment 3:

[0081] Reference Figure 5 The embodiment is different from the embodiment 2 in that the diameters of the plurality of air holes 15 arranged on the partition plate 16 are sequentially reduced along the direction away from the supercharging pipe 6.

[0082] After the heat flow enters the air inlet chamber at a certain flow rate, in the air inlet chamber, due to the flow rate of the heat flow, the heat flow directly reaches the side of the air inlet chamber away from the supercharging pipe 6, by reducing the diameter of the air hole 15 on the side away from the supercharging pipe 6, the heat flow is backflowed to the side of the air inlet chamber close to the supercharging pipe 6, the heat flow is uniformly distributed in the air inlet chamber, and the air pressure on the side away from the supercharging pipe 6 is greater than that on the side close to the supercharging pipe 6 in the air inlet chamber, by reducing the diameter of the air hole 15, the heat flow is pressurized and discharged, and the remaining heat flow is discharged through other air holes 15, which finally obtains the effect that the air flow is uniformly sprayed, and the heat flow distribution uniformity is further improved.

[0083] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0084] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A waste heat recovery and utilization device, characterized in that, include: The heat exchange unit is connected to the heat source outlet of the boiler (14) through a booster pipe (6) at the air inlet end; The heat exchange unit includes: The housing (1) has an internal chamber for accommodating a heat source, and the air inlet of the chamber is connected to the air outlet of the booster pipe (6). The outlet tube (5) is fixed at one end of the housing (1) away from the pressurization tube (6), and the outlet tube (5) is in communication with the chamber; A spiral-fin composite heat exchange unit is disposed in the chamber, and the spiral-fin composite heat exchange unit is heat exchanged with the chamber. A refrigerant flows inside the spiral-fin composite heat exchange unit. The spiral-fin composite heat exchange unit has micropores on the fin surface for forming local jets. A monitoring unit is used to acquire environmental parameters within the chamber, including at least temperature and air pressure parameters.

2. The waste heat recovery and utilization device according to claim 1, characterized in that, The spiral-fin composite heat exchange unit includes: A spiral guide tube (11) is fixed in the chamber. The spiral guide tube (11) is heat exchanged with the chamber. The spiral guide tube (11) is used for refrigerant flow. Several radial fin groups (12) are spaced apart and staggered along the direction of the spiral guide tube (11). The spiral guide tube (11) is fixed to the radial fin groups (12). The radial fin groups (12) are heat exchanged with the chamber. The radial fin groups (12) are exchanged with the spiral guide tube (11).

3. The waste heat recovery and utilization device according to claim 2, characterized in that: The spiral guide tube (11) has a tapered spiral structure, and the end of the spiral guide tube (11) near the booster tube (6) is the large diameter end.

4. The waste heat recovery and utilization device according to claim 2, characterized in that: The radial fin assembly (12) includes at least one radial fin, which is fixedly connected to the outer wall of the spiral guide tube (11), and the radial fin is heat-exchangeable with the spiral guide tube (11) and the chamber.

5. The waste heat recovery and utilization device according to claim 4, characterized in that: The radial fins include a windward side and a leeward side. The windward side of the radial fins is arranged in the direction of the booster pipe (6). The radial fins are rectangular. The angle between the leeward side of the radial fins and the spiral guide pipe (11) is 15°-30°.

6. The waste heat recovery and utilization device according to claim 2, characterized in that: The height of several of the radial fin groups (12) decreases sequentially in the direction away from the booster tube (6).

7. A waste heat recovery and utilization device according to claim 4, characterized in that: The radial fin surface has a number of fin micropores (13) arranged in a matrix.

8. The waste heat recovery and utilization device according to claim 1, characterized in that: The two ends of the shell (1) are respectively fixed with a front end cap (2) and a rear end cap (3); The housing (1) is threadedly fixed to the front end cap (2); The housing (1) is threadedly fixed to the rear end cap (3).

9. A waste heat recovery and utilization device according to claim 1, characterized in that: The outer wall of the housing (1) is covered with a heat insulation layer, and the housing (1) is connected to a pressure relief valve (8).

10. A waste heat recovery and utilization device according to claim 1, characterized in that: The monitoring unit includes a pressure detection mechanism (9) and a temperature detection mechanism (10). The detection ends of the pressure detection mechanism (9) and the temperature detection mechanism (10) are located in the chamber. The pressure detection mechanism (9) and the temperature detection mechanism (10) are used to detect the temperature and air pressure in the chamber.

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