Tubular hydrogen peroxide evaporation device

Abstract

The invention relates to the technical field of hydrogen peroxide evaporation equipment, and discloses a tubular hydrogen peroxide evaporation device which comprises an evaporation pipeline, the evaporation pipeline is integrally sleeved with a mounting flange, the mounting flange is provided with a heat preservation sleeve and a heating coil, and the surface of the evaporation pipeline is sleeved with the heat preservation sleeve and the heating coil. A gap is reserved between the heating coil and the inner wall of the heating coil; one end of the evaporation pipeline is provided with an air outlet connector communicated with the isolator, the other end of the evaporation pipeline is provided with an atomization mechanism, and a turbulent flow mechanism is inserted into the evaporation pipeline. According to the tubular hydrogen peroxide evaporation device, the problems that in the prior art, a complex structure in a static pressure box brings inconvenience to installation and overhaul of evaporation disc components, part of large isolator systems need a large amount of hydrogen peroxide, the number of needed evaporation discs is larger, and the cost is low are solved. And the maintenance difficulty of the hydrogen peroxide evaporation assembly in the isolator is further improved.

Description

Technical Field

[0001] The invention relates to the technical field of hydrogen peroxide evaporation equipment, in particular to a tubular hydrogen peroxide evaporation device. Background Art

[0002] Hydrogen peroxide, also known as hydrogen peroxide, is generally used as a strong oxidant and disinfectant in sterilization, sewage treatment, dyeing and weaving, bleaching and other fields. When hydrogen peroxide is used for sterilization in an isolator, an evaporating plate is generally installed in the static pressure box of the isolator. When circulating in the air flow of the isolator, the vaporized hydrogen peroxide flashed through the evaporating plate in the static pressure box is brought into the sterilization chamber, so that the vaporized hydrogen peroxide condenses in space and on the surface of objects, and the pathogenic microorganisms are killed quickly and effectively through the released strong oxidative free radicals.

[0003] However, in the prior art, the evaporation tray installed in the isolator makes the structure in the static pressure box too complicated. Since the evaporation tray is a high-temperature device, it needs to be regularly inspected and parts replaced. The complex structure in the static pressure box brings inconvenience to the installation and maintenance of the evaporation tray parts. In addition, some large isolator systems have a large demand for hydrogen peroxide and require more evaporation trays, which further increases the difficulty of maintaining the hydrogen peroxide evaporation assembly in the isolator. Summary of the invention

[0004] In view of the shortcomings of the prior art, the invention provides a tubular hydrogen peroxide evaporation device to solve the problems mentioned in the above background.

[0005] The invention provides the following technical solution: a tubular hydrogen peroxide evaporation device, comprising: an evaporation pipeline, the evaporation pipeline is integrally sleeved with a mounting flange, the mounting flange is installed with a heat preservation sleeve and a heating coil sleeved on the surface of the evaporation pipeline, and the heating coil is located inside the heat preservation sleeve and has a gap with the inner wall thereof;

[0006] An air outlet interface connected to the isolator is installed at one end of the evaporation pipeline, an atomization mechanism is installed at the other end of the evaporation pipeline, a spoiler mechanism is inserted inside the evaporation pipeline, a structure at one end of the spoiler mechanism is clamped between the evaporation pipeline and a flange installed on the air outlet interface, and the air outlet interface is clamped on the interface of the isolator sterilization system.

[0007] Preferably, a junction box is provided on the insulation sleeve, the bottom of the junction box is made of heat-insulating material, and the junction box is mounted on the insulation sleeve by arranging mounting fasteners.

[0008] Preferably, the evaporation pipe is provided with a temperature measuring sleeve, which is a hoop structure made of heat-conducting material, one end of the temperature measuring sleeve is fitted to the side of the mounting flange, a temperature sensor is inserted inside the temperature measuring sleeve, and the end of the temperature sensor is installed on the mounting flange.

[0009] Preferably, the spoiler mechanism includes a middle solid rod, and a plurality of slots are alternately provided on the upper and lower parts of the surface of the middle solid rod, and baffles are inserted into the slots. A positioning frame is provided at one end of the middle solid rod, and the inner diameter of the positioning frame corresponds to the inner diameter of the evaporation pipe, and the positioning frame is clamped at the flange joint between the evaporation pipe and the air outlet interface.

[0010] Preferably, a plug hole is provided inside the middle solid rod, a plug rod is inserted inside the plug hole, a stud is provided at one end of the plug rod, a button cap is provided at one end of the stud, and the stud is threadedly installed on the end of the middle solid rod.

[0011] Preferably, the baffle includes a plate body, the whole of the plate body is a semicircular plate structure, and the plate body is made of heat-conductive metal material, an insert plate is integrally arranged at the center of the plate body, a lock hole is opened on the insert plate at the point located at the center of the plate body, a reinforcement plate that fits the surface shape of the middle solid rod is welded to the side of the plate body, and a plurality of groups of reinforcing ribs are arranged at the angle between the plate body and the reinforcement plate.

[0012] Preferably, the atomization mechanism includes an atomization shell, and an air inlet chamber, a check chamber and a mixing chamber located in a straight line are sequentially opened at the center of the atomization shell, and small through holes are opened between the air inlet chamber and the check chamber, and between the check chamber and the mixing chamber. An end of the mixing chamber away from the check chamber is provided with a nozzle connected to the outside of the atomization shell, a first spring is arranged inside the check chamber, and a check block sliding inside the check chamber is arranged at one end of the first spring close to the air inlet chamber.

[0013] Preferably, a liquid inlet chamber is provided inside the atomizing shell at the outer edges of the air inlet chamber, the check chamber and the mixing chamber, a through liquid hole is provided between the liquid inlet chamber and the mixing chamber, a second spring is provided inside the liquid inlet chamber near one end of the nozzle, a check ring is provided at the end of the second spring, a barrier ring is overlapped at one end of the check ring away from the second spring, and the barrier ring is integrally provided on the inner wall of the liquid inlet chamber.

[0014] Preferably, a tapered threaded part is provided on the outer edge of the atomizing shell, the atomizing mechanism is threadedly arranged on the end of the evaporating pipe through the tapered threaded part, and a nut is provided on the end of the tapered threaded part.

[0015] Preferably, the end of the air inlet cavity extends toward the outer edge of the atomizing shell to form a connecting pipe, an air inlet pipe is installed on the connecting pipe extended from the atomizing shell, the end of the air inlet pipe is connected to compressed gas, and a connecting pipe connected to the liquid inlet cavity outward is integrally provided below the end of the atomizing shell away from the nozzle, a liquid inlet pipe is installed on the connecting pipe connected to the outside of the liquid inlet cavity, and the liquid inlet pipe is connected to the peristaltic pump.

[0016] Compared with the prior art, the invention has the following beneficial effects:

[0017] 1. The tubular hydrogen peroxide evaporation device is installed on the interface of the isolator sterilization system by using the air outlet interface clamp type, so that the hydrogen peroxide evaporation device is independent of the isolator system. There is no need to dismantle the isolator inspection panel for maintenance and installation and replacement, and it works in the technical interlayer. If it is damaged during work, it can be directly replaced, which will not affect the normal operation of the isolator and increase the stability and reliability of the system.

[0018] 2. The tubular hydrogen peroxide evaporation device reduces the volume and complexity of the hydrogen peroxide evaporation equipment by reducing the evaporation and transportation of hydrogen peroxide to one section of the pipeline, simplifies the evaporation of hydrogen peroxide, and is conducive to reducing processing and maintenance costs. Compared with traditional integrated sterilization, maintenance does not require disassembly of the isolator, which further reduces labor costs.

[0019] 3. The tubular hydrogen peroxide evaporation device is provided with an atomizing mechanism, so that the hydrogen peroxide entering the evaporation pipe is directly atomized into small particles, which are then pushed by compressed air through the high-temperature heated evaporation pipe. The turbulence mechanism is used to make the atomized small particles fully contact with the high temperature emitted by the evaporation pipe, thereby greatly improving the evaporation efficiency of hydrogen peroxide, thereby enabling a large amount of hydrogen peroxide to evaporate, meeting the hydrogen peroxide needs of some large isolator systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the three-dimensional structure of the invention;

[0021] Figure 2 It is a schematic diagram of the side section structure of the invention;

[0022] Figure 3 A schematic diagram of the heating coil structure is provided for the invention;

[0023] Figure 4 Schematic diagram of the explosion of the invented structure;

[0024] Figure 5 The present invention is a schematic diagram of the structure of the spoiler mechanism;

[0025] Figure 6 The schematic diagram of the baffle structure is invented;

[0026] Figure 7 It is a schematic diagram of the side section structure of the atomization mechanism of the invention.

[0027] In the figure: 1, evaporation pipe; 2, mounting flange; 3, air outlet interface; 4, insulation cover; 5, junction box; 6, mounting fastener; 7, atomization mechanism; 701, atomization shell; 702, air inlet chamber; 703, check chamber; 704, mixing chamber; 705, nozzle; 706, liquid inlet chamber; 707, first spring; 708, check block; 709, liquid through hole; 710, second spring; 711, check ring; 712, barrier ring; 7 13. Tapered threaded part; 714. Nut; 715. Air inlet pipe; 716. Liquid inlet pipe; 8. Turbine mechanism; 81. Middle solid rod; 82. Slot; 83. Baffle; 831. Plate; 832. Insert plate; 833. Keyhole; 834. Reinforcement plate; 835. Reinforcement rib; 84. Insert hole; 85. Positioning frame; 86. Insert rod; 87. Stud; 88. Button cap; 9. Heating coil; 10. Temperature measuring sleeve; 11. Temperature sensor. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the invention.

[0029] See also Figure 1-7 A tubular hydrogen peroxide evaporation device comprises: an evaporation pipe 1, an integral mounting flange 2 is sleeved on the evaporation pipe 1, an insulation sleeve 4 and a heating coil 9 sleeved on the surface of the evaporation pipe 1 are installed on the mounting flange 2, and the heating coil 9 is located inside the insulation sleeve 4 and has a gap with the inner wall thereof;

[0030] An outlet interface 3 connected to the isolator is installed at one end of the evaporation pipeline 1, an atomization mechanism 7 is installed at the other end of the evaporation pipeline 1, a spoiler mechanism 8 is inserted inside the evaporation pipeline 1, and a structural clamp at one end of the spoiler mechanism 8 is placed between the evaporation pipeline 1 and the flange installed with the outlet interface 3, and the outlet interface 3 is clamped on the interface of the isolator sterilization system.

[0031] Among them, a junction box 5 is arranged on the insulation sleeve 4, the bottom of the junction box 5 is made of insulation material, and the junction box 5 is sleeved on the insulation sleeve 4 by arranging a mounting fastener 6. The power line and control line of the hydrogen peroxide evaporation device are integrated into a single box body by using the junction box 5, so that the installation and maintenance of this device are more convenient, and the gap of the junction box 5 is dustproof and waterproof to meet the use requirements in harsh environments.

[0032] Among them, a temperature measuring sleeve 10 is sleeved on the evaporation pipe 1, and the temperature measuring sleeve 10 is a hoop structure made of heat-conducting material. One end of the temperature measuring sleeve 10 is fitted on the side of the mounting flange 2, and a temperature sensor 11 is inserted inside the temperature measuring sleeve 10. The end of the temperature sensor 11 is installed on the mounting flange 2. The temperature sensor 11 can adopt a common dual-probe sensor on the market, which is inserted and fixed on the mounting flange 2. The temperature measuring sleeve 10 is used to make the temperature sensor 11 close to the evaporation pipe 1 to monitor the side wall temperature of the pipe in real time. At the same time, the dual probes can be used in a backup mode and PID is adjusted according to the actual temperature in the pipe to ensure that the temperature in the evaporation pipe 1 is constant.

[0033] Among them, the spoiler mechanism 8 includes a middle solid rod 81, and the upper and lower parts of the surface of the middle solid rod 81 are staggered with multiple groups of slots 82, and the inside of the slots 82 is plugged with baffles 83. One end of the middle solid rod 81 is provided with a positioning frame 85, and the inner diameter of the positioning frame 85 corresponds to the inner diameter of the evaporation pipe 1, and the positioning frame 85 is clamped at the flange joint between the evaporation pipe 1 and the gas outlet interface 3. The middle solid rod 81 is used as the main structure, and the semicircular baffles 83 are distributed thereon at intervals, which can effectively increase the retention time of atomized hydrogen peroxide in the evaporation pipe 1, ensure the evaporation effect, and at the same time meet a large amount of hydrogen peroxide evaporation. The spoiler mechanism 8 adopts an inserted design as a whole, which is simple to install, and the evaporation pipe 1 can be quickly cleaned and maintained by withdrawing the spoiler mechanism 8.

[0034] Among them, a socket 84 is opened inside the middle solid rod 81, and a rod 86 is inserted into the socket 84. A stud 87 is provided at one end of the rod 86, and a button cap 88 is provided at one end of the stud 87. The stud 87 is threadedly installed on the end of the middle solid rod 81. After a certain number of baffles 83 are selected according to usage requirements and inserted into the slot 82, the rod 86 is inserted into the socket 84 to fix all the inserted baffles 83 at one time to avoid the baffles 83 from being skewed or falling off.

[0035] Among them, the baffle 83 includes a plate body 831, which is a semicircular plate structure as a whole, and the plate body 831 is made of heat-conducting metal material. A plug plate 832 is integrally arranged at the center of the plate body 831, and a lock hole 833 is opened at the point of the plug plate 832 located at the center of the plate body 831. A reinforcing plate 834 that fits the surface shape of the middle solid rod 81 is welded on the side of the plate body 831, and a plurality of groups of reinforcing ribs 835 are arranged at the angle between the plate body 831 and the reinforcing plate 834. The turbulence through the evaporation pipe 1 can be controlled by adjusting the number of baffles 83. When a large amount of evaporation occurs, the number of baffles 83 is increased to increase the turbulence in the evaporation pipe 1, so that the airflow is accumulated and then gushed out. At the same time, the turbulence can make the ejected hydrogen peroxide particles stay in the high temperature environment for more time, thereby increasing the evaporation amount. When a small amount of evaporation occurs, the number of baffles 83 can be reduced accordingly, thereby meeting the needs of different evaporation amounts.

[0036] The atomizing mechanism 7 includes an atomizing shell 701, and an air inlet chamber 702, a check chamber 703, and a mixing chamber 704 are sequentially provided at the center of the atomizing shell 701, and through holes are provided between the air inlet chamber 702 and the check chamber 703, and between the check chamber 703 and the mixing chamber 704. A nozzle 705 communicating with the outside of the atomizing shell 701 is provided at one end of the mixing chamber 704 away from the check chamber 703. A first spring 707 is provided inside the check chamber 703. The first spring 707 is provided at the bottom of the mixing chamber 704. 07 A check block 708 sliding inside the check chamber 703 is provided at one end close to the air inlet chamber 702. Based on the fact that the internal circulation of the isolator sterilization system has a certain air pressure, by arranging the check block 708 in the check chamber 703, the check block 708 can be pushed to compress the first spring 707 only after the compressed gas enters the air inlet chamber 702, so that the compressed gas is ejected from the nozzle 705. When the compressed air is insufficient, the check block 708 immediately blocks it to prevent the air pressure in the isolator sterilization system from flowing back through the atomization mechanism 7.

[0037] Among them, a liquid inlet chamber 706 is opened inside the atomizing shell 701 at the outer edges of the air inlet chamber 702, the check chamber 703 and the mixing chamber 704, a through liquid through hole 709 is opened between the liquid inlet chamber 706 and the mixing chamber 704, a second spring 710 is arranged inside the liquid inlet chamber 706 near one end of the nozzle 705, a check ring 711 is arranged at the end of the second spring 710, and a barrier ring 712 is overlapped at one end of the check ring 711 away from the second spring 710, and the barrier ring 712 is integrally arranged on the inner wall of the liquid inlet chamber 706. By opening the liquid through hole 709, hydrogen peroxide liquid enters the liquid inlet chamber 706, and then enters the mixing chamber 704 through the liquid through hole 709, mixes with the compressed gas, and flows out through the nozzle 705 to form small particles of liquid, which is convenient for liquid evaporation.

[0038] Among them, a conical threaded part 713 is provided on the outer edge of the atomizing shell 701, and the atomizing mechanism 7 is threadedly arranged on the end of the evaporating pipe 1 through the conical threaded part 713. A nut 714 is provided on the end of the conical threaded part 713. The conical threaded part 713 is used to connect the atomizing mechanism 7 to the evaporating pipe 1 through the conical threaded part 713, which ensures the sealing performance while being able to be quickly loosened, so that the atomizing mechanism 7 is easy to replace.

[0039] Among them, the end of the air inlet cavity 702 extends a section of connecting pipe toward the outer edge of the atomizing shell 701, and an air inlet pipe 715 is installed on the connecting pipe extended from the atomizing shell 701, and the end of the air inlet pipe 715 is connected to compressed gas. A connecting pipe connected to the liquid inlet cavity 706 outward is integrally arranged below the end of the atomizing shell 701 away from the nozzle 705, and a liquid inlet pipe 716 is installed on the connecting pipe connected to the outside of the liquid inlet cavity 706. The liquid inlet pipe 716 is connected to the peristaltic pump. By using the air inlet pipe 715 and the liquid inlet pipe 716, the atomizing mechanism 7 can be connected to the peristaltic pump and the compressed gas respectively, which can not only utilize the gas-liquid mixture to spray to form small particles of liquid, so that hydrogen peroxide can be easily evaporated, but also the compressed gas can be used as the power source of this sterilization evaporation device to blow the atomized hydrogen peroxide into the evaporation pipe 1 and the isolator sterilization system.

[0040] Working principle: when using the hydrogen peroxide evaporation device, first adjust the flow disturbance mechanism 8 according to the amount of hydrogen peroxide evaporation required by the isolator, insert the adjusted flow disturbance mechanism 8 into the evaporation pipeline 1, and use the gas outlet interface 3 to clamp part of the structure of the flow disturbance mechanism 8 at the flange installation position between the flow disturbance mechanism 8 and the evaporation pipeline 1, and then quickly set the other end of the gas outlet interface 3 on the isolator sterilization system through a clamp interface, and then install the atomization mechanism 7 on the evaporation pipeline 1 and connect the hydrogen peroxide and compressed air;

[0041] When the hydrogen peroxide evaporation device is working, the hydrogen peroxide liquid and compressed gas transported by the peristaltic pump reach the inside of the atomizing mechanism 7 and are mixed and sprayed inside the evaporating pipe 1. The heating coil 9 starts to generate heat to provide a high-temperature environment inside the evaporating pipe 1, so that the hydrogen peroxide liquid particles sprayed inside the evaporating pipe 1 evaporate quickly. Then, compressed air is used as a power source to move the evaporated hydrogen peroxide forward along the channel reserved by the turbulent flow mechanism 8, and the evaporated hydrogen peroxide is sent into the isolator sterilization system through the gas outlet interface 3.

[0042] Although embodiments of the invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A tubular hydrogen peroxide evaporation device, characterized in that: include: An evaporation pipe (1), wherein a mounting flange (2) is integrally sleeved on the evaporation pipe (1), and an insulation sleeve (4) and a heating coil (9) sleeved on the surface of the evaporation pipe (1) are installed on the mounting flange (2), and the heating coil (9) is located inside the insulation sleeve (4) and has a gap with the inner wall thereof; An air outlet interface (3) connected to the isolator is installed at one end of the evaporation pipeline (1), an atomization mechanism (7) is installed at the other end of the evaporation pipeline (1), a flow disturbance mechanism (8) is inserted inside the evaporation pipeline (1), a structural clamp at one end of the flow disturbance mechanism (8) is placed between the evaporation pipeline (1) and a flange installed at the air outlet interface (3), and the air outlet interface (3) is clamp-mounted on the interface of the isolator sterilization system.

2. A tubular hydrogen peroxide evaporation device according to claim 1, characterized in that: The insulation sleeve (4) is provided with a junction box (5), the bottom of the junction box (5) is made of a heat-insulating material, and the junction box (5) is sleeved on the insulation sleeve (4) by means of a mounting fastener (6).

3. A tubular hydrogen peroxide evaporation device according to claim 1, characterized in that: The evaporation pipe (1) is provided with a temperature measuring sleeve (10), the temperature measuring sleeve (10) is a sleeve structure made of a heat-conducting material, one end of the temperature measuring sleeve (10) is fitted on the side of the mounting flange (2), a temperature sensor (11) is inserted into the interior of the temperature measuring sleeve (10), and the end of the temperature sensor (11) is mounted on the mounting flange (2).

4. A tubular hydrogen peroxide evaporation device according to claim 1, characterized in that: The spoiler mechanism (8) comprises a middle solid rod (81), a plurality of slots (82) are staggeredly provided at the upper and lower parts of the surface of the middle solid rod (81), a baffle (83) is inserted into the interior of the slot (82), a positioning frame (85) is provided at one end of the middle solid rod (81), the inner diameter of the positioning frame (85) corresponds to the inner diameter of the evaporation pipe (1), and the positioning frame (85) is clamped at the flange joint between the evaporation pipe (1) and the air outlet interface (3).

5. A tubular hydrogen peroxide evaporation device according to claim 4, characterized in that: The middle fixing rod (81) has an insertion hole (84) formed inside, an insertion rod (86) is inserted into the insertion hole (84), one end of the insertion rod (86) is provided with a stud (87), one end of the stud (87) is provided with a button cap (88), and the stud (87) is threadedly mounted on the end of the middle fixing rod (81).

6. A tubular hydrogen peroxide evaporation device according to claim 4, characterized in that: The baffle (83) comprises a plate body (831), the plate body (831) being a semicircular plate structure as a whole, and the plate body (831) being made of a heat-conducting metal material, an insert plate (832) being integrally arranged at the center of the plate body (831), a locking hole (833) being provided on the insert plate (832) at a point located at the center of the plate body (831), a reinforcing plate (834) conforming to the surface shape of the middle fixing rod (81) being welded to the side surface of the plate body (831), and a plurality of groups of reinforcing ribs (835) being arranged at the angle between the plate body (831) and the reinforcing plate (834).

7. A tubular hydrogen peroxide evaporation device according to claim 1, characterized in that: The atomizing mechanism (7) comprises an atomizing shell (701), wherein an air inlet chamber (702), a check chamber (703) and a mixing chamber (704) are sequentially provided at the center of the atomizing shell (701) and are located in a straight line; through holes are provided between the air inlet chamber (702) and the check chamber (703), and between the check chamber (703) and the mixing chamber (704); a nozzle (705) communicating with the outside of the atomizing shell (701) is provided at one end of the mixing chamber (704) away from the check chamber (703); a first spring (707) is provided inside the check chamber (703); and a check block (708) sliding inside the check chamber (703) is provided at one end of the first spring (707) close to the air inlet chamber (702).

8. A tubular hydrogen peroxide evaporation device according to claim 7, characterized in that: A liquid inlet chamber (706) is provided inside the atomizing shell (701) at the outer edges of the air inlet chamber (702), the check chamber (703) and the mixing chamber (704); a through liquid through hole (709) is provided between the liquid inlet chamber (706) and the mixing chamber (704); a second spring (710) is provided inside the liquid inlet chamber (706) at one end close to the nozzle (705); a check ring (711) is provided at the end of the second spring (710); a barrier ring (712) is overlapped at one end of the check ring (711) away from the second spring (710); and the barrier ring (712) is integrally provided on the inner wall of the liquid inlet chamber (706).

9. A tubular hydrogen peroxide evaporation device according to claim 7, characterized in that: The outer edge of the atomizing shell (701) is provided with a tapered threaded piece (713), the atomizing mechanism (7) is threadedly arranged on the end of the evaporation pipe (1) via the tapered threaded piece (713), and a nut (714) is arranged at the end of the tapered threaded piece (713).

10. A tubular hydrogen peroxide evaporation device according to claim 7, characterized in that: The end of the air inlet chamber (702) is extended toward the outer edge of the atomizing shell (701) to form a connecting pipe, and an air inlet pipe (715) is installed on the connecting pipe extended from the atomizing shell (701), and the end of the air inlet pipe (715) is connected to compressed gas. A connecting pipe connected to the liquid inlet chamber (706) is integrally provided below the end of the atomizing shell (701) away from the nozzle (705), and a liquid inlet pipe (716) is installed on the connecting pipe connected to the outside of the liquid inlet chamber (706), and the liquid inlet pipe (716) is connected to a peristaltic pump.

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