Water vapor separation device with active drainage function
By designing a water vapor separation device with active drainage function in the ultrasonic tumor treatment system, the water accumulation film and central processing unit module can be used to realize instant switching of vacuum and drainage actions, the problem of insufficient degassing of media water is solved and the system reliability is improved and low noise characteristics of the device.
Patent Information
- Application Number
- CN201811560166.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-12-19
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2038-12-19
AI Technical Summary
In the existing ultrasonic tumor treatment system, insufficient degassing degree and supply of medium water lead to insufficient ultrasonic energy and poor focus form. The existing equipment has high power, high noise, complex pipeline design, lack of fault risk analysis and Risk measures, and there is no active drainage function for accumulated water, low water vapor separation efficiency, and unstable dissolved oxygen value.
A water vapor separation device with active drainage function was designed, including a vacuum water vapor separation container, a water accumulation film, a variety of solenoid valves, a vacuum pump and a central processing unit module. The water vapor is quickly discharged through the water accumulation film, realizing the vacuum and drainage action. Switch, reduce the failure rate, realize closed-loop control of vacuum degree and pressure value, and adapt to the miniaturized equipment design.
It extends the life of the vacuum pump, improves system reliability, reduces failure rate and cost, and realizes sensitive adjustment of vacuum degree and pressure value, ensures low noise and high reliability of the equipment, and facilitates miniaturization design.
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Figure CN109455780B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the field of medical devices, and in particular to a water vapor separation device with an active drainage function. Background Art
[0002] In the ultrasonic tumor treatment system, the ultrasonic waves emitted by the phased array ultrasonic transducer must pass through the dielectric water to be coupled into the tissue for focusing. Degassed water is often used as the dielectric water because of its good acoustic permeability and low price. When the treatment head works at high intensity and high power, the degree of degassing of the degassed water is affected by the water temperature in the hollow fiber degassing membrane, the vacuum pressure value of the vacuum pump, and the vacuum flow rate of the vacuum pump. During the treatment, the temperature of the dielectric water in the hollow fiber membrane rises, resulting in a decrease in the dissolved oxygen content of the degassed water. Insufficient vacuum will lead to incomplete degassing and high dissolved oxygen values. Insufficient vacuum pump flow will also lead to high dissolved oxygen values. The high dissolved oxygen value in the degassed water seriously affects the acoustic impedance of the transducer. The ultrasonic waves emitted by the treatment head are attenuated in the dielectric water, resulting in insufficient ultrasonic energy focused in the body and poor focus morphology, resulting in the clinical radiation dose not showing expected changes and uncontrollable sidelobe size. The degree of degassing and supply of medium water are key factors affecting treatment. In order to meet relevant national standards and performance requirements, two methods are commonly used in the industry. One is the heating atomization vacuum method, and the other is the vacuum method using a filter element and a reverse osmosis membrane degassing membrane.
[0003] The conventional equipment currently available usually has the following defects: the vacuum pump has a high negative pressure, the number of booster pumps is large, the volume is large, the power is high, the noise is high, the pipeline design is complex, there is a lack of risk analysis and risk measures for single pipeline failures, there are strict requirements for the installation positions of the accessories, it is not easy to integrate small and portable, the water collector is not designed reasonably and does not have a water accumulation membrane, the water vapor separation efficiency is low, there is no active drainage function for accumulated water, the drainage function has poor ability to adapt to the environment, and there is no constant dissolved oxygen value based on (vacuum pressure value, vacuum pump flow, degassed water temperature,) vacuum pump speed regulation closed-loop control. Summary of the invention
[0004] In view of the defects in the prior art, an object of the present invention is to provide a water vapor separation device with an active drainage function.
[0005] To solve the above technical problems, the present invention provides a water vapor separation device with an active drainage function, comprising: a vacuum water vapor separation container, in which a water accumulation film is provided; a first vacuum tube, one end of which is connected to the bottom of the vacuum water vapor separation container, and the other end of which is connected to the atmospheric pressure; a first normally open solenoid valve and a check valve, which are arranged on the first vacuum tube; a second vacuum tube, one end of which is connected to the side of the vacuum water vapor separation container, and the other end of which is connected to the hollow fiber tube; a first normally closed solenoid valve, which is arranged on the second vacuum tube. On the empty pipe; a second normally closed solenoid valve, the air inlet end of the second normally closed solenoid valve is connected to the top of the vacuum water vapor separation container; a first two-position three-way solenoid valve, the first port of the first two-position three-way solenoid valve is connected to the air outlet end of the second normally closed solenoid valve; a vacuum pump, the air inlet end of the vacuum pump is connected to the second port of the first two-position three-way solenoid valve; a second two-position three-way solenoid valve, the second port of the second two-position three-way solenoid valve is connected to the air outlet end of the vacuum pump; a second normally open solenoid valve, the air inlet end of the second normally open solenoid valve is connected to the third port of the second two-position three-way solenoid valve, and the air outlet end of the second normally open solenoid valve is connected to the top of the vacuum water vapor separation container.
[0006] Preferably, it also includes an electric contact adjustable pressure gauge, which is connected to the air outlet end of the vacuum pump.
[0007] Preferably, it further comprises a liquid level trigger switch, and the liquid level trigger switch is arranged on the side of the vacuum water vapor separation container.
[0008] Preferably, it also includes a vacuum pressure gauge, which is connected to the top of the vacuum water vapor separation container through a bellows.
[0009] Preferably, a muffler is further included, and the muffler is communicated with the first port of the second two-position three-way solenoid valve.
[0010] Preferably, it also includes a control circuit board, on which a control circuit is integrated, and the control circuit is electrically connected to the first normally closed solenoid valve, the first normally open solenoid valve, the second normally closed solenoid valve, the second normally open solenoid valve, the first two-position three-way solenoid valve, the second two-position three-way solenoid valve, the vacuum pressure gauge, the electric contact adjustable pressure gauge and the vacuum pump, respectively.
[0011] Preferably, the control circuit includes: a central processing unit module, the vacuum pressure gauge and the electric contact adjustable pressure gauge are electrically connected to the central processing unit module respectively; a multi-channel output power management system, the multi-channel output power management system is electrically connected to the central processing unit module; a power drive amplifier module, the power drive amplifier module is electrically connected to the multi-channel output power management system, the first normally closed solenoid valve, the first normally open solenoid valve, the second normally closed solenoid valve, the second normally open solenoid valve, the first two-position three-way solenoid valve, the second two-position three-way solenoid valve and the vacuum pump are electrically connected to the central processing unit module respectively; a power supply, the power supply is electrically connected to the multi-channel output power management system and the power drive amplifier module respectively.
[0012] Preferably, it also includes a host computer serial port communication module, and the host computer serial port communication module is electrically connected to the central processing unit module.
[0013] Preferably, it also includes an LCD display, and the LCD display is electrically connected to the central processing unit module.
[0014] Preferably, it also includes a key switch, and the key switch is electrically connected to the central processing unit module.
[0015] Compared with the prior art, the present invention has the following beneficial effects:
[0016] (1) By adopting a specially designed vacuum water vapor separation container with a water accumulation membrane embedded in it, the problems of rapid discharge of accumulated water and incomplete water vapor separation are solved, the life of the vacuum pump is extended and the system reliability is increased.
[0017] (2) By using a central processing unit module and a power drive amplifier module, a two-position three-way solenoid valve, a vacuum pump and, the vacuuming and drainage actions require several vacuum pumps and compressors, and the interval between the drainage action and the vacuuming action switching is relatively long; because the vacuum pump and the compressor cannot be repeatedly started and stopped, repeated start and stop will cause the vacuum pump and the compressor to be unable to start normally under the condition of stalling and the current is too large, which is easy to burn the coil. This design uses fewer peripheral devices, has a low failure rate and low cost, the vacuuming action and the drainage action can be switched instantly, the action switching is sensitive, the system has a long service life and high reliability.
[0018] (3) By adopting the host computer serial port communication, central processing unit module and power drive amplifier module, two-position three-way solenoid valve, vacuum pump, vacuum pressure gauge, and electric contact adjustable pressure gauge, not only the explosion caused by excessive pressure in vacuum pipelines, containers, and vacuum pumps under single device failure is solved, but also the host computer communication is realized to adjust the vacuum pressure value, and the closed-loop control of the vacuum pressure value and vacuum pump speed is realized.
[0019] (4) By adopting the central processing unit module and the power drive amplifier module, the two-position three-way solenoid valve, the vacuum pump, the vacuum pressure gauge, and the electric contact adjustable pressure gauge, the problem that the vacuum pump and the water pump and other equipment need to be installed in a strict special position is solved, and the vacuum tube liquid drainage port connected to the atmospheric pressure, the vacuum pump, and various solenoid valves can be installed at any position, with strong environmental resistance and inexpensive equipment miniaturization design. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Other features, objects and advantages of the present invention will become more apparent from a reading of the detailed description of non-limiting embodiments made with reference to the following accompanying drawings.
[0021] Figure 1 This is a schematic diagram of a water vapor separation device with active drainage function according to the present invention;
[0022] Figure 2 This is a schematic diagram of the control circuit of the water vapor separation device with active drainage function of the present invention;
[0023] Figure 3 The present invention is a working flow chart of the water vapor separation device with active drainage function.
[0024] In the figure:
[0025] 1- Vacuum pressure gauge 2- Bellows 3- Vacuum water vapor separation container
[0026] 4-First normally closed solenoid valve 5-Second vacuum tube 6-Liquid level trigger switch
[0027] 7-First normally open solenoid valve 8-Check valve 9-First vacuum tube
[0028] 10-Second normally closed solenoid valve 11-Second normally open solenoid valve 12-Muffler
[0029] 13-water membrane 14-first two-position three-way solenoid valve 15-vacuum pump
[0030] 16-Electric contact adjustable pressure gauge 17-Second two-position three-way solenoid valve DETAILED DESCRIPTION
[0031] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0032] like Figure 1 to Figure 3As shown, the water vapor separation device with active drainage function of the present invention comprises: a vacuum water vapor separation container 3, a drainage vacuum pump, a pipeline connecting the drainage vacuum pump and the vacuum water vapor separation container 3, and an electrical control system.
[0033] The vacuum water vapor separation container 3 comprises a liquid level trigger switch 6, a water accumulation membrane 13, a first normally open solenoid valve 7 connected to the bottom of the vacuum water vapor separation container 3, a check valve 8 connected to the first normally open solenoid valve 7, a first vacuum tube 9 connected to the check valve 8, the first vacuum tube 9 connected to atmospheric pressure is connected to standard atmospheric pressure, a first normally closed solenoid valve 4 connected to the air inlet of the vacuum water vapor separation container 3, a second vacuum tube 5 connected from a hollow fiber tube connected to the first normally closed solenoid valve 4, the second vacuum tube 5 from the hollow fiber tube is rich in water vapor, a bellows 2 connected to the top of the vacuum water vapor separation container 3, and a vacuum pressure tube 9 connected to the bellows 2. A pressure gauge 1, a second normally closed solenoid valve 10 connected to the top of the vacuum water vapor separation container 3, a first port on a two-position first two-position three-way solenoid valve 14 connected to the second normally closed solenoid valve 10, an air inlet end of a vacuum pump 15 connected to the second port on the first two-position three-way solenoid valve 14, an exhaust end of the vacuum pump 15 connected to an electric contact adjustable pressure gauge 16 and a second port on a second two-position three-way solenoid valve 17, a muffler 12 connected to the first port on the second two-position three-way solenoid valve 17, a second normally open solenoid valve 11 connected to the third port on the second two-position three-way solenoid valve 17, and the second normally open solenoid valve 11 is connected to the vacuum water vapor separation container 3.
[0034] The electrical control system includes: a multi-way power management system connected to AC220 mains power, a central processing unit module, a host computer serial port communication module, an LCD display, a vacuum pressure gauge 1, a key switch, a power drive amplifier module connected to the power supply (AC220 mains power), a first normally closed solenoid valve 4, a first normally open solenoid valve 7, a second normally open solenoid valve 10, a second normally open solenoid valve 11, a first two-position three-way solenoid valve 14 and a second two-position three-way solenoid valve 17, and a vacuum pump 15. The multi-way power management system provides 5V / 24 for the system, which are used by the central processing unit module and the power drive amplifier module respectively. The IO port of the central processing unit module is respectively connected to the signal of the electric contact adjustable pressure gauge 16, the host computer serial port communication module, the LCD display, and the vacuum pressure gauge 1. The central processing unit module is connected to the power drive amplifier module through a multi-way optical coupler. The power drive amplifier module performs independent timing control on various solenoid valves through MOS tubes, and the power drive amplifier module performs speed control on the vacuum pump through SCR.
[0035] Workflow
[0036] After the system is powered on and the central processing unit module performs serial port and LCD initialization, the preset parameters are input according to the serial port communication or key switch operation, and the electric contact adjustable pressure gauge 16 enters the pressure detection process. In order to prevent a single failure of the solenoid valve or pipeline during the pressure detection process, the vacuum pump 15 continues to work and the system pressure continues to rise, resulting in an over-pressure explosion in the vacuum water vapor separation container 3 or the pipeline and the vacuum pump 15. When it is determined that the pressure of the vacuum pump 15 output pipeline exceeds the set pressure of the electric contact pressure gauge 16, the electric contact pressure gauge 16 transmits its signal to the central processing unit module. The central processing unit module controls the power drive amplifier module through the on-board multi-channel optical coupling to turn off the solenoid valve and the vacuum pump 15. When it is determined that the pressure of the vacuum pump 15 output pipeline does not exceed the set pressure of the electric contact pressure gauge 16, it enters the liquid level detection process of the liquid level trigger switch 6 on the vacuum water vapor separation container 3. When the liquid level trigger switch 6 on the vacuum water vapor separation container 3 is triggered by over-liquid level, the liquid level trigger switch 6 transmits the trigger signal to the central processing unit module, and the system performs automatic drainage.
[0037] Active drainage action: The central processing unit module is connected to the power drive amplifier module through a multi-channel optical coupler to control the first normally closed solenoid valve 4 to be turned off, the second normally closed solenoid valve 10 to be turned off, the first normally open solenoid valve 7 to be turned on, the second normally open solenoid valve 11 to be turned on, the first two-position three-way solenoid valve 14 to be powered off, the second port to be connected to the third port, the second two-position three-way solenoid valve 17 to be powered off, the second port to be connected to the third port, the vacuum pump 15 to be powered on, and the electric contact pressure gauge 16 to trigger the signal connected to the central processing unit module. The vacuum pump 15 will quickly pressurize the atmospheric pressure from the first two-position three-way solenoid valve 14 to be powered off, the second port to be connected to the third port, and the compressed air will pass through the second two-position three-way solenoid valve 17 to the third port. The second port is connected to the third port which is connected to the second normally open solenoid valve 11. The compressed air enters the vacuum water vapor separation container 3 through the second normally open solenoid valve 11. Since the second normally closed solenoid valve 10 and the first normally closed solenoid valve 4 are closed, the first normally open solenoid valve 7 is opened. The compressed air pushes the accumulated liquid at the bottom of the vacuum water vapor separation container 3 out and discharges it. After flowing into the first normally open solenoid valve 7, it flows through the check valve 8 and passes through the first vacuum tube 9 connected to the atmospheric pressure which is connected to the check valve 8. Finally, the accumulated liquid is discharged into the atmospheric environment through the first vacuum tube 9 connected to the atmospheric pressure due to the thrust of the compressed air. The function of the check valve 8 is to prevent the accumulated liquid from backflowing due to pressure changes when the automatic drainage action and the vacuum action mode are switched.
[0038] Vacuuming action: The central processing unit module is connected to the power drive amplifier module through a multi-channel optical coupler to control the first normally closed solenoid valve 4 to open, the second normally closed solenoid valve 10 to open, the first normally open solenoid valve 7 to close, the second normally open solenoid valve 11 to close, the first two-position three-way solenoid valve 14 to power on, the second port to the first port, the second two-position three-way solenoid valve 17 to power on, the second port to the first port, the vacuum pump 15 to power on and work, the electric contact pressure gauge 16 trigger signal is connected to the central processing unit module, the water vapor mixture from the hollow degassing membrane passes through the second vacuum tube 5 connected to the hollow fiber tube, flows through the opened first normally closed solenoid valve 4, and enters the vacuum water vapor separation container 3, the water vapor mixture flows into the bottom of the container, the accumulated liquid flows into the bottom, and the air contacts the water accumulation membrane 13 to perform the second water vapor separation, the water accumulation membrane 13 is made of polymer material, which can not only collect the water in the gas, but also prevent the pressure change from causing the accumulated liquid in the vacuum water vapor separation container 3 to spray and flow back, and the liquid enters the vacuum pump 15 and its pipeline, damaging the vacuum pump. A bellows 2 is installed on the top of the vacuum water vapor separation container 3, and a vacuum pressure gauge 1 is installed on the bellows 2. The bellows 2 is used to relieve pressure shock and make the value of the vacuum pressure gauge 1 more stable. The vacuum pressure gauge 1 transmits the collected pressure value to the central processing unit module. The central processing unit module adjusts the speed of the vacuum pump 15 through the power drive amplifier module according to the switch button input instruction or serial port data. The LCD display module displays the switch button input instruction value or serial port data value and the current vacuum pressure value to realize the flow control of the vacuum pump 15, thereby realizing the vacuum degree adjustment closed-loop feedback control. After passing through the water accumulation membrane 13, the water-free gas passes through the top pipeline of the vacuum water vapor separation container 3, flows into the second normally closed solenoid valve 10 which has been powered on, and then enters the first two-position three-way solenoid valve 14, the first port is connected to the second port, and enters the vacuum pump 15 exhaust port after passing through the second port of the first two-position three-way solenoid valve 14, the exhaust port of the vacuum pump 15 is respectively connected to the second port on the second two-position three-way solenoid valve 17 which has been powered on and the electric contact adjustable pressure gauge 16, the electric contact adjustable pressure gauge 16 returns the trigger signal to the central processing unit module in time according to the pressure condition, the air from the output end of the vacuum pump passes through the second port of the second two-position three-way solenoid valve 17, and then flows through the muffler 12, the polymer particles in the muffler 12 attenuate the air noise from the pipeline, so as to achieve the low noise requirement of the equipment, and finally the air treated by the muffler 12 enters the atmospheric environment, thereby achieving low noise, adjustable vacuum degree and reliable vacuum pumping action.
[0039] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.
Claims
1. A method for operating a water vapor separation device with active drainage function, characterized in that: The water vapor separation device comprises: A vacuum water vapor separation container, wherein a water accumulation membrane is provided in the vacuum water vapor separation container; a first vacuum tube, one end of which is connected to the bottom of the vacuum water vapor separation container, and the other end of which is connected to atmospheric pressure; a first normally open solenoid valve and a check valve, wherein the first normally open solenoid valve and the check valve are arranged on the first vacuum tube; a second vacuum tube, one end of which is in communication with a side of the vacuum water vapor separation container, and the other end of which is in communication with the hollow fiber tube; a first normally closed solenoid valve, wherein the first normally closed solenoid valve is arranged on the second vacuum tube; a second normally closed solenoid valve, wherein an air inlet end of the second normally closed solenoid valve is connected to the top of the vacuum water vapor separation container; A first two-position three-way solenoid valve, wherein a first port of the first two-position three-way solenoid valve is connected to an air outlet end of the second normally closed solenoid valve; A vacuum pump, wherein an air inlet end of the vacuum pump is connected to a second port of the first two-position three-way solenoid valve; a second two-position three-way solenoid valve, wherein a second port of the second two-position three-way solenoid valve is connected to an air outlet end of the vacuum pump; a second normally open solenoid valve, wherein an air inlet end of the second normally open solenoid valve is communicated with a third port of the second two-position three-way solenoid valve, and an air outlet end of the second normally open solenoid valve is communicated with a top of the vacuum water vapor separation container; It also includes an electric contact adjustable pressure gauge, which is connected to the air outlet of the vacuum pump; It also includes a vacuum pressure gauge, which is connected to the top of the vacuum water vapor separation container through a bellows; It also includes a control circuit board, on which a control circuit is integrated, and the control circuit is electrically connected to the first normally closed solenoid valve, the first normally open solenoid valve, the second normally closed solenoid valve, the second normally open solenoid valve, the first two-position three-way solenoid valve, the second two-position three-way solenoid valve, the vacuum pressure gauge, the electric contact adjustable pressure gauge, and the vacuum pump respectively; The control circuit comprises: A central processing unit module, the vacuum pressure gauge and the electric contact adjustable pressure gauge are electrically connected to the central processing unit module respectively; A multi-channel output power management system, the multi-channel output power management system is electrically connected to the central processing unit module; A power drive amplifier module, wherein the power drive amplifier module is electrically connected to the multi-output power management system, and the first normally closed solenoid valve, the first normally open solenoid valve, the second normally closed solenoid valve, the second normally open solenoid valve, the first two-position three-way solenoid valve, the second two-position three-way solenoid valve and a vacuum pump are electrically connected to the central processing unit module respectively; A power supply, the power supply being electrically connected to the multi-channel output power management system and the power drive amplifier module respectively; It also includes a host computer serial port communication module, which is electrically connected to the central processing unit module; It also includes a liquid level trigger switch, which is arranged on the side of the vacuum water vapor separation container; Also includes a muffler, the muffler is in communication with the first port of the second two-position three-way solenoid valve; The operation method comprises: System power-on: After the CPU module is initialized, the preset parameters are input, and the electric contact adjustable pressure gauge enters the pressure detection process. When it is determined that the pressure of the vacuum pump output pipeline exceeds the set pressure of the electric contact pressure gauge, the electric contact pressure gauge transmits its signal to the CPU module, and the CPU module shuts off each solenoid valve and the vacuum pump. When it is determined that the pressure of the vacuum pump output pipeline does not exceed the set pressure of the electric contact pressure gauge, it enters the liquid level detection process of the liquid level trigger switch on the vacuum water vapor separation container. When the liquid level trigger switch on the vacuum water vapor separation container is triggered by over-liquid level, the liquid level trigger switch transmits the trigger signal to the CPU module, and the system performs automatic drainage action; Active drainage action: the central processing unit module controls the first normally closed solenoid valve to be turned off, the second normally closed solenoid valve to be turned off, the first normally open solenoid valve to be turned on, the second normally open solenoid valve to be turned on, the first two-position three-way solenoid valve is not powered on, the second port is connected to the third port, the second two-position three-way solenoid valve is not powered on, the second port is connected to the third port, the vacuum pump is powered on and works, the electric contact pressure gauge trigger signal is connected to the central processing unit module, the vacuum pump quickly pressurizes the atmospheric pressure from the first two-position three-way solenoid valve not powered on, the second port is connected to the third port, the compressed air is connected to the second normally open solenoid valve through the second port of the second two-position three-way solenoid valve connected to the third port, and the compressed air enters the vacuum water vapor separation container through the second normally open solenoid valve; Vacuuming action: The CPU module controls the first normally closed solenoid valve to open, the second normally closed solenoid valve to open, the first normally open solenoid valve to close, the second normally open solenoid valve to close, the first two-position three-way solenoid valve to power on, the second port to the first port, the second two-position three-way solenoid valve to power on, the second port to the first port, the vacuum pump to power on, the electric contact pressure gauge trigger signal connected to the CPU module, the water vapor mixture from the hollow degassing membrane passes through the second vacuum tube connected to the hollow fiber tube, flows through the opened first normally closed solenoid valve, and enters the vacuum water vapor separation container, the water vapor mixture flows into the bottom of the container, the accumulated liquid flows into the bottom, the air contacts the water membrane for the second water vapor separation, and the vacuum pressure gauge The collected pressure value is transmitted to the central processing unit module, and the central processing unit module adjusts the speed of the vacuum pump. The water-free gas after passing through the water accumulation membrane passes through the top pipe of the vacuum water vapor separation container, flows into the second normally closed solenoid valve that has been powered on, and then enters the first two-position three-way solenoid valve. The first port is connected to the second port, and after passing through the second port of the first two-position three-way solenoid valve, it enters the vacuum pump exhaust port. The vacuum pump exhaust port is respectively connected to the second port of the second two-position three-way solenoid valve that has been powered on and the electric contact adjustable pressure gauge. The electric contact adjustable pressure gauge will trigger a signal back to the central processing unit module in real time according to the pressure condition. The air from the output end of the vacuum pump passes through the second port of the second two-position three-way solenoid valve and flows through the muffler.
2. The method for operating the water vapor separation device with active drainage function according to claim 1, characterized in that: It also includes an LCD display, which is electrically connected to the central processing unit module.
3. The operating method of the water vapor separation device with active drainage function according to claim 1, characterized in that: It also includes a key switch, which is electrically connected to the central processing unit module.
Citation Information
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