Fermentation tank capable of filtering hide residues and automatically cleaning

Abstract

The utility model discloses a fermentation tank capable of filtering hide residues and automatically cleaning, which comprises a tank body and a base, the base is mounted at the bottom of the tank body, and a control cabinet is mounted on the front side of the base; a stirring and cleaning mechanism is arranged above the tank body, a filter mechanism which can be disassembled and assembled is rotatably mounted below the inner side of the tank body, a discharge port is connected to the bottom of the filter mechanism, and a Miller plate capable of dissipating heat based on the room temperature of a plant is arranged on the outer side wall of the tank body. A temperature detection device, a liquid level detection device and a pressure detection device are arranged at the top of the tank body; the wine mixing device has the functions of quickly discharging through the discharging valve after filtrate is filtered out, cleaning and washing the tank body and the filtering mechanism through the cleaning structure, and driving the filtering mechanism to rotate together when the stirring mechanism stirs, so that wine and raw materials are prevented from rotating together, and the mixing effect is improved.

Description

Technical Field

[0001] This utility model patent belongs to the field of fermentation tank technology, specifically relating to a fermentation tank that can filter sludge and automatically clean itself. Background Technology

[0002] In the brewing industry, raw materials need to be placed in fermentation vessels to maintain a certain temperature for an extended period of time, thereby enabling the microorganisms in the raw materials to ferment rapidly. Fermentation tanks are devices used to carry out the fermentation process, and they can provide precise control parameters such as temperature, humidity, and oxygen supply. These conditions are crucial for the growth and metabolic activities of yeast or other microorganisms.

[0003] Existing fermentation tanks, such as the grain fermentation tank for brewing disclosed in Chinese Patent (CN215906170U), include a fermentation tank with an openable sealing cover at the top. A rectangular filter frame with an opening at the top is located at the bottom of the fermentation tank's inner cavity. The sidewalls of the filter frame abut against the sidewalls of the fermentation tank's inner cavity. Connecting rods are symmetrically fixed to the four corners of the top of the rectangular filter frame. Fixing strips are fixed between the two sets of connecting rods on the left and the two sets on the right. A feed hopper is located at the top of the sealing cover. Although this device can filter residue, the inventors have found the following drawbacks in practical use:

[0004] 1. In industrial applications, although the device can filter materials by installing a rectangular filter frame at the bottom of the fermentation tank, the cleaning of materials is quite troublesome after the fermentation liquid is discharged, even if the filter frame can be quickly disassembled. It requires manual discharge and cleaning of the tank, which is time-consuming and labor-intensive.

[0005] 2. At the same time, when the stirring structure of the device is stirring, the wine will be affected by the force and rotate with the stirring rod, forming a vortex and causing a swirling phenomenon. This results in poor mixing of raw materials, and it is also impossible to expel the fermentation gas in the fermentation material upwards, and it is also impossible to avoid the phenomenon of tank bloating.

[0006] To address the aforementioned problems, this invention proposes a fermentation tank that can filter sludge and automatically clean itself. Utility Model Content

[0007] To address the aforementioned issues, this invention proposes a fermentation tank capable of filtering fermented residue and automatically cleaning. After filtrate is filtered out, it can quickly discharge the residue via a discharge valve and clean and rinse the tank and filtration mechanism through a cleaning structure. Simultaneously, when the stirring mechanism is agitating, it can also drive the filtration mechanism to rotate, preventing the wine and raw materials from swirling together and improving the mixing effect.

[0008] To achieve the above-mentioned technical effects, this utility model is implemented through the following technical solution: a fermentation tank that can filter sludge and automatically clean itself, including a tank body and a base. The base is installed at the bottom of the tank body, and a control cabinet is installed at the front of the base. A stirring and cleaning mechanism is provided above the tank body. A detachable and assembleable filter mechanism is rotatably installed on the lower inner side of the tank body. A discharge port is connected to the bottom of the filter mechanism. A Miller plate that can dissipate heat based on the room temperature is provided on the outer wall of the tank body. A temperature detection device, a liquid level detection device, and a pressure detection device are provided on the top of the tank.

[0009] The control cabinet is equipped with a processor, a display, control buttons, a power interface, and an audible and visual alarm. The processor is electrically connected to the display, control buttons, power interface, audible and visual alarm, stirring and cleaning mechanism, drive mechanism, liquid level detection device, and temperature detection device. The power interface provides power to the processor, display, control buttons, power interface, audible and visual alarm, stirring and cleaning mechanism, drive mechanism, liquid level detection device, and temperature detection device through a power supply connection.

[0010] Preferably, the tank has a feed inlet at the top, a sealing door at the bottom, a base at the bottom of the tank to support the rotation of the filtration mechanism and to seal it, and a drain outlet at the bottom of the tank with a valve A installed thereon.

[0011] Preferably, the sealed door is equipped with a sampling structure.

[0012] Preferably, the sampling structure further includes a sampling tube and a sampling valve. The sampling tube is welded to the sealing door and its front end extends into the tank body, and the sampling valve is installed at the rear end of the sampling tube.

[0013] Preferably, the base has an insertion hole at its center to support the bottom discharge pipe of the filter mechanism, and a sealing ring is provided on the upper surface of the base.

[0014] Preferably, the stirring and cleaning mechanism further includes a stirring mechanism and a cleaning mechanism. The stirring mechanism includes a stirring main shaft, a stirring support rod, a drive motor A, gear A, and gear B. The stirring main shaft is rotatably mounted on the top of the tank, and gear A is mounted on the stirring main shaft above the tank. The stirring support rod is mounted on the front and rear sides of the stirring main shaft. The drive motor A is mounted on the top of the tank, and its driving end is meshed with gear A through the connected gear B. The cleaning mechanism further includes a water pump (not shown in the figure), a pipe (not shown in the figure), a rotary joint, a liquid inlet channel, a water spray pipe, a nozzle, a tank scraper, and a filter scraper. The water pump is located in a water tank (not shown in the figure) and is connected to the rotary joint through a pipe. The rotary joint is mounted on the top of the stirring main shaft. The water spray pipe is mounted on the stirring main shaft inside the tank, and the inside of the water spray pipe is connected to the rotary joint through the liquid inlet channel. Nozzles are provided on both ends of the water spray pipe. The tank scraper and the filter scraper are respectively mounted on the stirring support rod inside the corresponding tank and the filter mechanism.

[0015] Preferably, the filtration mechanism further includes a funnel-shaped collecting seat, a trapezoidal slide, a slide rail, an arc-shaped filter screen, a discharge port, a valve B, a drive mechanism, and a slot structure. The funnel-shaped collecting seat is mounted on a base, and the bottom of the funnel-shaped collecting seat is provided with a discharge port extending out of the bottom of the tank. The discharge port is provided with a bevel gear A and a valve B. The trapezoidal slide is welded to the inner side of the middle of the tank. The slide rail is slidably mounted on the trapezoidal slide. The arc-shaped filter screen is detachably mounted between the slide rail and the funnel-shaped collecting seat through the slot structure. The drive mechanism is mounted at the bottom of the tank and meshes with the bevel gear A.

[0016] Preferably, the drive mechanism further includes a motor frame, a drive motor B, and a bevel gear B. The drive motor B is mounted on the motor frame at the bottom of the tank, and the bevel gear B is connected to the drive end of the drive motor B and meshes with the bevel gear A.

[0017] Preferably, the temperature detection device, liquid level detection device, and pressure detection device can be non-contact temperature sensors, ultrasonic liquid level sensors, and air pressure sensors, respectively.

[0018] The beneficial effects of this utility model are:

[0019] This invention can quickly discharge the filtrate through a discharge valve after filtration, and clean and rinse the tank and filtration mechanism through a cleaning structure. At the same time, when the stirring mechanism is stirring, it can also drive the filtration mechanism to rotate together, so as to avoid the wine and raw materials from swirling together and improve the mixing effect. It can also sample and test the fermentation status in the tank. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the present invention;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a cross-sectional view of the main view of this utility model;

[0024] Figure 4 This utility model Figure 2 A partial schematic diagram of A in the middle;

[0025] Figure 5 This is the right view of the present invention;

[0026] Figure 6 This is a cross-sectional view of the right side of this utility model;

[0027] The attached diagram lists the components represented by each number as follows:

[0028] 1. Tank body; 2. Base; 3. Control cabinet; 4. Processor; 5. Display; 6. Control buttons; 7. Power interface; 8. Audible and visual alarm; 9. Feed inlet; 10. Sealing door; 11. Base; 12. Drain outlet; 13. Valve A; 14. Sampling tube; 15. Sampling valve; 16. Insertion hole; 17. Sealing ring; 18. Stirring shaft; 19. Stirring support rod; 20. Drive motor A; 21. Gear A; 22. Gear B; 23. Rotary joint; 24. 25. Liquid inlet channel; 26. Water spray pipe; 27. Nozzle; 28. Tank scraper; 29. ​​Filter scraper; 30. Funnel-shaped collection seat; 31. Trapezoidal slide; 32. Slide rail; 33. Arc-shaped filter screen; 34. Discharge port; 35. Valve B; 36. Drive mechanism; 37. Slot structure; 38. Motor frame; 49. Drive motor B; 40. Bevel gear A; 41. Bevel gear B; 42. Temperature detection device; 43. Liquid level detection device; 44. Pressure detection device. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. Example

[0030] likeFigures 1 to 6 As shown, the prior art in this embodiment has the following problems: Based on the prior art, the inventors have found that existing fermentation tanks, such as the grain fermentation tank for brewing disclosed in Chinese Patent (CN215906170U), still have the following drawbacks in actual use: In industrial applications, although the material can be filtered by installing a rectangular filter frame at the bottom of the fermentation tank cavity, even if the filter frame can be quickly disassembled after the fermentation liquid is discharged, the cleaning of the material is still quite troublesome, requiring manual discharge and cleaning of the tank, which is time-consuming and labor-intensive; at the same time, when the stirring structure of the device is stirring, the alcohol will be affected by the force and rotate with the stirring rod, forming a vortex and causing a swirling phenomenon, which makes the mixing effect of the raw materials not good, and at the same time, it is impossible to discharge the fermentation gas in the fermentation material upwards, and it is also impossible to avoid the phenomenon of tank expansion.

[0031] Therefore, the inventor provides a fermentation tank that can filter sludge and automatically clean itself, including a tank body 1 and a base 2. The base 2 is installed at the bottom of the tank body 1, and a control cabinet 3 is installed at the front of the base 2. A stirring and cleaning mechanism is provided on the top of the tank body 1. A detachable and assembleable filter mechanism is rotatably installed on the lower inner side of the tank body 1. A discharge port 33 is connected to the bottom of the filter mechanism. A Miller plate that can dissipate heat based on the room temperature is provided on the outer wall of the tank body 1. A temperature detection device 41, a liquid level detection device 42, and a pressure detection device 43 are provided on the top of the tank body 1.

[0032] The control cabinet 3 is equipped with a processor 4, a display 5, control buttons 6, a power interface 7, and an audible and visual alarm 8. The processor 4 is electrically connected to the display 5, control buttons 6, power interface 7, audible and visual alarm 8, stirring and cleaning mechanism, drive mechanism 35, temperature detection device 41, and liquid level detection device 42. The power interface 7 provides power to the processor 4, display 5, control buttons 6, power interface 7, audible and visual alarm 8, stirring and cleaning mechanism, drive mechanism 35, temperature detection device 41, and liquid level detection device 42 by connecting to a power source.

[0033] This invention can quickly discharge the filtrate through the discharge valve after filtration, and clean and rinse the tank 1 and the filtration mechanism through the cleaning structure. At the same time, when the stirring mechanism is stirring, it can also drive the filtration mechanism to rotate together, so as to avoid the wine and raw materials from swirling together and improve the mixing effect. It can also sample and test the fermentation situation in the tank.

[0034] Furthermore, a feed inlet 9 is installed at the top of the tank body 1, a sealing door 10 is provided on the lower side of the tank body 1, a base 11 is provided at the bottom of the inner side of the tank body 1 to support the rotation of the filter mechanism and to seal it, and a drain outlet 12 is provided at the bottom of the tank body 1 with a valve A13 installed on the drain outlet 12; this structure allows feeding through the feed inlet 9, and after discharging and cleaning, the sealing door 10 can be opened for inspection, and the removed filter screen can be taken out from the sealing door 10, while the fermented wine and the waste liquid after washing can be discharged from the drain outlet 12.

[0035] Furthermore, a sampling structure is installed on the sealed door 10; this structure allows staff to easily take samples and observe the fermentation process at any time.

[0036] Furthermore, the sampling structure also includes a sampling tube 14 and a sampling valve 15. The sampling tube 14 is welded to the sealing door 10 and its front end extends into the tank body 1. The sampling valve 15 is installed at the rear end of the sampling tube 14. When sampling, the sampling valve 15 can be opened, and due to the hydraulic pressure inside the tank, the fermentation liquid will flow out from the sampling tube 14.

[0037] Furthermore, the base 11 has an insertion hole 16 at its center for supporting the bottom discharge pipe of the filter mechanism, and a sealing ring 17 is provided on the upper surface of the base 11; the sealing ring 17 in this structure can prevent the wine from flowing out from the bottom when the filter mechanism is rotating.

[0038] Furthermore, the stirring and cleaning mechanism also includes a stirring mechanism and a cleaning mechanism. The stirring mechanism further includes a stirring main shaft 18, a stirring support rod 19, a drive motor A20, a gear A21, and a gear B22. The stirring main shaft 18 is rotatably mounted on the top of the tank body 1, and gear A21 is mounted on the stirring main shaft 18 above the tank body 1. The stirring support rod 19 is installed on the front and rear sides of the stirring main shaft 18. The drive motor A20 is installed on the top of the tank body 1, and its driving end is connected to gear B22. The cleaning mechanism also includes a water pump (not shown in the figure), a pipe (not shown in the figure), a rotary joint 23, a liquid inlet channel 24, a water spray pipe 25, a nozzle 26, a tank scraper 27, and a filter screen scraper 28. The water pump is installed in the water tank (not shown in the figure) and connected to the rotary joint 23 through the pipe. The rotary joint 23 is installed on the top of the stirring shaft 18. The water spray pipe 25 is installed on the stirring shaft 18 above the inside of the tank 1 and is connected to the rotary joint 23 through the liquid inlet channel 24. Nozzles 26 are provided on both the left and right ends of the water spray pipe 25. The tank scraper 27 and the filter screen scraper 28 are respectively installed on the stirring support rod 19 inside the corresponding tank 1 and the filter mechanism.

[0039] During stirring, the stirring mechanism in this structure can drive the raw materials in the tank 1 and the filter mechanism to rotate through the stirring main shaft 18 and the support rod; when cleaning the tank 1, a water pump can spray water onto the inner wall of the tank 1 through the water spray pipes 25 on the left and right sides of the stirring main shaft 18, while driving the stirring main shaft 18 to rotate, thereby driving the tank scraper 27 and the filter scraper 28 on the front and rear sides of the stirring main shaft 18 to clean the inner wall of the tank 1 and the filter screen.

[0040] Furthermore, the filtration mechanism also includes a funnel-shaped collecting seat 29, a trapezoidal slide 30, a slide rail 31, an arc-shaped filter screen 32, a discharge port 33, a valve B34, a drive mechanism 35, and a slot structure 36. The funnel-shaped collecting seat 29 is mounted on the base 11, and the bottom of the funnel-shaped collecting seat 29 is provided with a discharge port 33 extending out of the bottom of the tank body 1. The discharge port 33 is provided with a bevel gear A39 and a valve B34. The trapezoidal slide 30 is welded to the inner side of the middle part of the tank body 1. The slide rail 31 is slidably mounted on the trapezoidal slide 30. The arc-shaped filter screen 32 is detachably mounted between the slide rail 31 and the funnel-shaped collecting seat 29 through the slot structure 36. The drive mechanism 35 is mounted at the bottom of the tank body 1 and meshes with the bevel gear A39.

[0041] This structure can separate the raw materials and the wine during the drainage process, and the raw materials can be quickly discharged afterwards. The arc-shaped filter screen 32 can be disassembled for detailed cleaning after the initial cleaning. At the same time, in order to prevent the wine and raw materials from swirling together during the stirring process, the filter mechanism can be rotated in the opposite direction to give the raw materials inside a reverse force, thereby preventing the wine and raw materials from swirling together and improving the mixing efficiency.

[0042] Furthermore, the drive mechanism 35 also includes a motor frame 37, a drive motor B38, and a bevel gear B40. The drive motor B38 is mounted on the motor frame 37 at the bottom of the tank 1, and the bevel gear B40 is connected to the drive end of the drive motor B38 and meshes with the bevel gear A39. This mechanism can provide power for the rotation of the filtration mechanism.

[0043] Furthermore, the temperature detection device 41, the liquid level detection device 42, and the pressure detection device 43 can respectively adopt a non-contact temperature sensor, an ultrasonic liquid level sensor, and a gas pressure sensor; these three structures can respectively detect the fermentation temperature, liquid level, and gas pressure inside the tank 1.

[0044] The working principle of this utility model:

[0045] This utility model allows for feeding through the feed inlet 9, and inspection by opening the sealing door 10 after discharge and cleaning. The removed filter screen can also be taken out from the sealing door 10, while the fermented wine and the waste liquid after cleaning can be discharged from the drain outlet 12. The sampling structure allows staff to easily take samples at any time to observe the fermentation process.

[0046] During stirring, the stirring mechanism can drive the raw materials in the tank 1 and the filter mechanism to rotate through the stirring main shaft 18 and the support rod; when cleaning the tank 1, a water pump can spray water onto the inner wall of the tank 1 through the water spray pipes 25 on the left and right sides of the stirring main shaft 18, while driving the stirring main shaft 18 to rotate, thereby driving the tank scraper 27 and the filter scraper 28 on the front and rear sides of the stirring main shaft 18 to clean the inner wall of the tank 1 and the filter screen.

[0047] The filtration mechanism can separate the raw materials and the wine during the drainage process, and can quickly discharge the raw materials afterwards. The arc-shaped filter screen 32 can be disassembled for detailed cleaning after initial cleaning. At the same time, in order to prevent the wine and raw materials from swirling together during the stirring process, the filtration mechanism can be rotated in the opposite direction to give the raw materials inside a reverse force, thereby preventing the wine and raw materials from swirling together and improving the mixing efficiency.

[0048] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0049] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fermentation tank capable of filtering sludge and automatically cleaning, comprising a tank body (1) and a base (2), wherein the base (2) is installed at the bottom of the tank body (1), and a control cabinet (3) is installed at the front of the base (2); characterized in that: A stirring and cleaning mechanism is provided on the top of the tank (1). A detachable and assembleable filter mechanism is rotatably installed on the lower inner side of the tank (1). A discharge port (33) is connected to the bottom of the filter mechanism. A Miller plate that can dissipate heat based on the room temperature is provided on the outer wall of the tank (1). A temperature detection device (41), a liquid level detection device (42), and a pressure detection device (43) are provided on the top of the tank (1). The control cabinet (3) is equipped with a processor (4), a display (5), a control button (6), a power interface (7), and an audible and visual alarm (8). The processor (4) is electrically connected to the display (5), the control button (6), the power interface (7), the audible and visual alarm (8), the stirring and cleaning mechanism, the drive mechanism (35), the temperature detection device (41), the liquid level detection device (42), and the pressure detection device (43). The power interface (7) provides power to the processor (4) and the display (5), the control button (6), the power interface (7), the audible and visual alarm (8), the stirring and cleaning mechanism, the drive mechanism (35), the temperature detection device (41), and the liquid level detection device (42) by connecting to a power source.

2. The fermentation tank capable of filtering sludge and automatically cleaning according to claim 1, characterized in that: The tank (1) is equipped with a feed inlet (9) at the top, a sealing door (10) is provided on the lower side of the tank (1), a base (11) is provided on the bottom of the inner side of the tank (1) to support the rotation of the filter mechanism and to seal it, and a drain outlet (12) is provided at the bottom of the tank (1) and a valve A (13) is installed on the drain outlet (12).

3. The fermentation tank with filterable husk residue and automatic cleaning according to claim 2, characterized in that: A sampling structure is installed on the sealed door (10).

4. The fermentation tank capable of filtering sludge and automatically cleaning according to claim 3, characterized in that: The sampling structure also includes a sampling tube (14) and a sampling valve (15). The sampling tube (14) is welded to the sealing door (10) and its front end extends into the tank body (1). The sampling valve (15) is installed at the rear end of the sampling tube (14).

5. A fermentation tank capable of filtering sludge and automatically cleaning according to claim 2, characterized in that: The base (11) is provided with an insertion hole (16) for the bottom discharge pipe of the filter mechanism at its center, and a sealing ring (17) is provided on the upper surface of the base (11).

6. The fermentation tank with filterable husk residue and automatic cleaning according to claim 1, characterized in that: The stirring and cleaning mechanism further includes a stirring mechanism and a cleaning mechanism. The stirring mechanism further includes a stirring main shaft (18), a stirring support rod (19), a drive motor A (20), a gear A (21), and a gear B (22). The stirring main shaft (18) is rotatably mounted on the top of the tank (1), and gear A (21) is mounted on the stirring main shaft (18) above the tank (1). The stirring support rod (19) is mounted on the front and rear sides of the stirring main shaft (18). The drive motor A (20) is mounted on the top of the tank (1), and its driving end is connected to gear B (22). The cleaning mechanism is connected to gear A (21). The cleaning mechanism also includes a water pump, pipe, rotary joint (23), liquid inlet channel (24), water spray pipe (25), nozzle (26), tank scraper (27), and filter screen scraper (28). The water pump is installed in the water tank and connected to the rotary joint (23) through the pipe. The rotary joint (23) is installed on the top of the stirring shaft (18). The water spray pipe (25) is installed on the stirring shaft (18) inside the tank (1) and connected to the rotary joint (23) inside the water spray pipe (25) through the liquid inlet channel (24). Nozzles (26) are provided on the left and right ends of the water spray pipe (25). The tank scraper (27) and filter screen scraper (28) are respectively installed on the stirring support rod (19) inside the corresponding tank (1) and the filter mechanism.

7. The fermentation tank capable of filtering sludge and automatically cleaning according to claim 1, characterized in that: The filtration mechanism further includes a funnel-shaped collection seat (29), a trapezoidal slide (30), a slide rail (31), an arc-shaped filter screen (32), a discharge port (33), a valve B (34), a drive mechanism (35), and a slot structure (36). The funnel-shaped collection seat (29) is installed on the base (11), and the bottom of the funnel-shaped collection seat (29) is provided with a discharge port (33) extending out of the bottom of the tank body (1). The discharge port (33) is provided with a bevel gear A (39) and a valve B (34). The trapezoidal slide (30) is welded to the inner side of the middle part of the tank body (1). The slide rail (31) is slidably installed on the trapezoidal slide (30). The arc-shaped filter screen (32) is detachably installed between the slide rail (31) and the funnel-shaped collection seat (29) through the slot structure (36). The drive mechanism (35) is installed at the bottom of the tank body (1) and meshes with the bevel gear A (39).

8. A fermentation tank capable of filtering sludge and automatically cleaning according to claim 7, characterized in that: The drive mechanism (35) further includes a motor frame (37), a drive motor B (38), and a bevel gear B (40). The drive motor B (38) is mounted on the motor frame (37) at the bottom of the tank (1). The bevel gear B (40) is connected to the drive end of the drive motor B (38) and meshes with the bevel gear A (39).

9. A fermentation tank capable of filtering sludge and automatically cleaning according to claim 1, characterized in that: The temperature detection device (41), liquid level detection device (42), and pressure detection device (43) can respectively adopt non-contact temperature sensors, ultrasonic liquid level sensors, and air pressure sensors.

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