TWI696492B - Pneumatic double tank circulation system - Google Patents

Abstract

An air pressure type double tank circulation system includes a dispersing device, an upper tank and a lower tank. The upper tank includes an upper air inlet, an upper liquid inlet, and an upper liquid outlet. The upper air inlet is located at the upper end of the upper tank, and the upper liquid outlet is located at the lower end of the upper tank. The upper liquid inlet The port communicates with the dispersing device. The lower tank includes a lower air outlet and a lower liquid inlet. The lower air outlet is located at the upper end of the lower tank. The lower liquid inlet is located at the lower end of the lower tank. The lower liquid inlet is in communication with the dispersion device. The upper liquid outlet and the lower tank are communicated through a first valve, and the lower air outlet and the upper gas inlet are communicated through a second valve. The pneumatic double-slot circulation system can effectively avoid cavitation caused by the use of pumps, and avoid the risk of blockage or corrosion caused by the use of pumps.

Description

Pneumatic double tank circulation system

The invention relates to a circulation system, in particular to a pneumatic double-slot circulation system including an upper tank and a lower tank and communicating through a plurality of valves.

Referring to FIG. 1, the existing circulation system 100 includes a dispersion device 11 and a storage tank 13 located below the dispersion device 11, the storage tank 13 includes a liquid inlet 133 at the upper end and a liquid outlet 134 at the lower end, and The liquid inlet 133 communicates with the dispersion device 11, and the liquid outlet 134 communicates with the dispersion device 11 through a pump 19. When the liquid in the storage tank 13 needs to be dispersed, the liquid in the storage tank 13 can be pushed up by the pump 19 and sent to the dispersion device 11 for dispersion.

However, since the dispersing device 11 is generally in a vacuum and low pressure state, it is easy to cause cavitation of the pump 19 and damage it; and when the liquid contains impurities or is corrosive, it is easy to cause the pump 19 to be blocked or corroded And it is useless. In addition, if the pump 19 has insufficient pumping force, the liquid in the storage tank 13 cannot be effectively pushed up and delivered to the dispersing device 11; if the pump 19 has excessive pumping force, cavitation is more likely to occur.

Therefore, the purpose of the present invention is to provide a pneumatic double tank circulation system, which can overcome the above-mentioned shortcomings of the prior art.

Therefore, the pneumatic double-tank circulation system of the present invention includes a dispersing device, an upper tank and a lower tank. The dispersing device is suitable for dispersing a liquid into liquid mist. The inside of the upper tank is in a vacuum low-pressure state, including an upper air inlet, an upper liquid inlet, and an upper liquid outlet, the upper air inlet is located at the upper end of the upper tank, and the upper liquid outlet is located at the upper tank The lower end, and the upper liquid inlet is in communication with the dispersion device. The lower tank is located below the upper tank, and includes a lower air outlet and a lower liquid inlet, the lower air outlet is located at the upper end of the lower tank, the lower liquid inlet is located at the lower end of the lower tank, and the lower liquid inlet and the The dispersing devices are connected. Wherein, the upper liquid outlet and the lower tank are communicated through a first valve, and the lower air outlet and the upper gas inlet are communicated through a second valve.

The effect of the present invention is that the pneumatic double-groove circulation system effectively avoids cavitation caused by the use of the pump and avoids the risk of blockage or corrosion caused by the use of the pump.

The content of the present invention will be described in detail below: In some embodiments of the present invention, the lower tank further includes an air inlet, which is in communication with a gas through a third valve.

In some embodiments of the present invention, the upper tank further includes an upper air outlet at the upper end of the upper tank.

Preferably, both the upper groove and the lower groove are closed grooves.

Preferably, the lower liquid inlet and the dispersing device are not connected by a pump.

In some embodiments of the present invention, the lower tank further includes a lower liquid inlet, and the upper liquid outlet and the lower liquid inlet are in communication through the first valve.

In some embodiments of the present invention, the upper liquid outlet and the lower liquid inlet are in communication through the first valve.

In some embodiments of the present invention, the dispersing device is a supergravity rotating bed device.

Preferably, the pneumatic double tank circulation system of the present invention further includes a liquid level gauge for monitoring the liquid level in the lower tank.

Preferably, the pneumatic double tank circulation system of the present invention further includes a heater for heating the liquid flowing through the lower liquid inlet.

100: Circulatory system

11: Dispersing device

13: storage tank

133: Liquid inlet

134: Outlet

19: Pump

200: Pneumatic double tank circulation system

21: Dispersing device

22: Upper slot

221: Upper air inlet

222: Upper outlet

223: Upper liquid inlet

224: upper outlet

23: Lower slot

231: Lower air inlet

232: Lower air outlet

233: Lower inlet

234: Lower fluid inlet

24: First valve

25: Second valve

26: Third valve

27: Level gauge

28: Heater

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: [FIG. 1] is a schematic structural diagram of an existing circulation system; [FIG. 2] is a schematic structural diagram of the first embodiment of the pneumatic double-tank circulation system of the present invention; [FIG. 3] is a schematic structural view of the second embodiment of the pneumatic double-tank circulation system of the present invention; and [FIG. 4] is an architectural schematic view of the third embodiment of the pneumatic double-tank circulation system of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same number.

The present invention will be further described with respect to the following embodiments, but it should be understood that these embodiments are for illustrative purposes only, and should not be construed as limitations on the implementation of the present invention.

Referring to FIG. 2, the first embodiment of the pneumatic double tank circulation system 200 of the present invention includes a dispersion device 21, an upper tank 22, a lower tank 23, a liquid level gauge 27 and a heater 28.

The dispersing device 21 is suitable for dispersing a liquid into liquid mist. In the first embodiment, the dispersion device 21 is a supergravity rotating bed device.

The upper tank 22 is a closed tank, the inside of which is in a vacuum low-pressure state, and includes an upper air inlet 221, an upper liquid inlet 223, and an upper liquid outlet 224. The upper air inlet 221 is located on the upper tank 22 At the upper end, the upper liquid outlet 224 is located at the lower end of the upper tank 22, and the upper liquid inlet 223 is in communication with the dispersion device 21.

The lower tank 23 is a closed tank located below the upper tank 22 and includes a lower air outlet 232, a lower liquid inlet 233, and a lower liquid inlet 234. The lower air outlet 232 is located at the upper end of the lower groove 23. The lower liquid inlet 234 is located at the lower end of the lower tank 23. The lower liquid inlet 234 is in communication with the dispersion device 21 and is not in communication with a pump.

The upper liquid outlet 224 communicates with the lower liquid inlet 233 of the lower tank 23 through a first valve 24, and the lower air outlet 232 communicates with the upper air inlet 221 through a second valve 25. The lower gas outlet 232 communicates with a gas through a third valve 26.

The first valve 24, the second valve 25, and the third valve 26 may be selected from the same, or different from solenoid valves, pneumatic valves, or manual valves, respectively.

The liquid level gauge 27 is used to monitor the liquid level in the lower tank 23.

The heater 28 is used to heat the liquid flowing out of the lower liquid inlet 234.

The specific operation of the first embodiment is as follows:

(a) Under the monitoring of the liquid level gauge 27, when it is necessary to disperse the liquid in the lower tank 23, close the first valve 24 and the second valve 25, and open the third valve 26, so that the gas The lower gas outlet 232 is injected into the lower tank 23, by the pressure of the gas The liquid in the lower tank 23 flows out of the lower liquid inlet 234 and is pushed up and transported to the dispersing device 21 to be dispersed. At this time, due to the blocking of the second valve 25, the gas does not flow to the upper air inlet 221. In the first embodiment, the upper liquid inlet 223 has the functions of liquid inlet and gas outlet, so that the liquid is dispersed from the dispersing device 21 into the upper tank 22 and the inside of the upper tank 22 is in a vacuum and low pressure state.

(b) Under the monitoring of the liquid level gauge 27, when the liquid in the lower tank 23 is insufficient, the first valve 24 and the second valve 25 are opened, and the third valve 26 is closed to make the lower tank 23 The gas in the upper tank 22 is drawn out from the lower gas outlet 232 by the vacuum low pressure of the upper tank 22 to reach the equal pressure of the gas in the upper tank 22 and the lower tank 23, so that the liquid in the upper tank 22 is removed from the tank by gravity The upper liquid outlet 224 flows out and flows into the lower tank 23 through the lower liquid inlet 233.

Referring to FIG. 3, the second embodiment of the pneumatic double tank circulation system 200 of the present invention is similar to the first embodiment, except that in the second embodiment, the lower tank 23 does not have a lower liquid inlet, The lower tank 23 further includes a lower air inlet 231, the lower air inlet 231 communicates with a gas through a third valve 26, the upper liquid outlet 224 and the lower liquid inlet 234 of the lower tank 23 penetrate The first valve 24 is in communication, and the heater 28 is used to heat the liquid flowing into the lower tank 23 through the lower liquid port 234 or the liquid flowing out from the lower tank 23 through the lower liquid port 234, the flow of the liquid The direction will be explained later.

The specific operation of the second embodiment is as follows:

(a) Under the monitoring of the liquid level gauge 27, when it is necessary to disperse the liquid in the lower tank 23, close the first valve 24 and the second valve 25, and open the third valve 26, so that the gas The lower air inlet 231 is injected into the lower tank 23, so that the liquid in the lower tank 23 flows out of the lower liquid port 234 by the pressure of the gas, and is pushed up to the dispersion device 21 for dispersion. At this time, due to the obstruction of the first valve 24, the lower through liquid flows out The liquid in port 234 will not flow back to the upper liquid outlet 224; due to the blocking of the second valve 25, the gas will not flow to the upper gas inlet 221.

(b) Under the monitoring of the liquid level gauge 27, when the liquid in the lower tank 23 is insufficient, the first valve 24 and the second valve 25 are opened, and the third valve 26 is closed to make the lower tank 23 The gas in the upper tank 22 is drawn out from the lower gas outlet 232 by the vacuum low pressure of the upper tank 22 to reach the equal pressure of the gas in the upper tank 22 and the lower tank 23, so that the liquid in the upper tank 22 is moved by gravity from The upper liquid outlet 224 flows out and flows into the lower tank 23 through the lower liquid inlet 234.

Referring to FIG. 4, the third embodiment of the pneumatic double tank circulation system 200 of the present invention is similar to the second embodiment, except that in the third embodiment, the dispersing device 21 is a dispersing nozzle, and Located at the upper end of the upper tank 22, the upper tank 22 further includes an upper air outlet 222 located at the upper end of the upper tank 22.

The specific operation of the third embodiment is similar to that of the second embodiment, the difference is that in the third embodiment, the upper liquid inlet 223 is used to disperse liquid from the dispersing device 21 into the upper tank 22, The upper air outlet 222 supplies the interior of the upper tank 22 to a vacuum and low pressure state.

To sum up, the pneumatic double-tank circulation system 200 of the present invention can pass the gas pressure, by the arrangement of the upper tank 22 and the lower tank 23, and the control of the first valve 24 and the second valve 25, respectively. Vacuum low pressure and gravity action to achieve liquid circulation, no need to connect the storage tank and dispersion device through the pump, can effectively avoid the cavitation phenomenon caused by the use of the pump, and avoid the risk of blockage or corrosion caused by the use of the pump, so it can really achieve the cost of the invention purpose.

However, the above are only the embodiments of the present invention, but the scope of the implementation of the present invention cannot be limited by this, all the patent applications and patent descriptions according to the present invention The simple equivalent changes and modifications made in the content of the book are still covered by the patent of the present invention.

200: Pneumatic double tank circulation system

21: Dispersing device

22: Upper slot

221: Upper air inlet

223: Upper liquid inlet

224: upper outlet

23: Lower slot

232: Lower air outlet

233: Lower inlet

234: Lower fluid inlet

24: First valve

25: Second valve

26: Third valve

27: Level gauge

28: Heater

Claims (9)

An air pressure type double tank circulation system, including: a dispersing device suitable for dispersing a liquid into liquid mist; an upper tank with a vacuum and low pressure inside, including an upper air inlet, an upper liquid inlet and an upper outlet Liquid inlet, the upper air inlet is located at the upper end of the upper tank, the upper liquid outlet is located at the lower end of the upper tank, the upper liquid inlet is in communication with the dispersion device; and a lower tank located below the upper tank, It includes a gas outlet and a liquid inlet, the lower gas outlet is located at the upper end of the lower tank, the lower liquid inlet is located at the lower end of the lower tank, and the lower liquid inlet and the dispersing device are not connected by a pump; wherein , The upper liquid outlet and the lower tank are communicated through a first valve, and the lower air outlet and the upper air inlet are communicated through a second valve. The pneumatic double tank circulation system according to claim 1, wherein the lower tank further includes a lower air inlet, and the lower air inlet is in communication with a gas through a third valve. The pneumatic double tank circulation system according to claim 1, wherein the upper tank further includes an upper air outlet at the upper end of the upper tank. The pneumatic double tank circulation system according to claim 1, wherein both the upper tank and the lower tank are closed tanks. The pneumatic double tank circulation system according to claim 1, wherein the lower tank further includes a lower liquid inlet, and the upper liquid outlet and the lower liquid inlet are in communication through the first valve. The pneumatic double tank circulation system according to claim 1, wherein the upper liquid outlet and the lower liquid inlet are in communication through the first valve. The pneumatic double tank circulation system according to claim 1, wherein the dispersion device is a supergravity rotating bed device. The pneumatic double tank circulation system according to claim 1, further comprising a liquid level gauge for monitoring the liquid level in the lower tank. The pneumatic double tank circulation system according to claim 1, further comprising a heater for heating the liquid flowing through the lower liquid inlet.

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