JP5814624B2 - Gas-liquid separator and sterilizer - Google Patents

Description

  The present invention relates to a gas-liquid separator and a sterilizer.

  When well water is used for domestic water, etc., the impurities are filtered out by removing iron and manganese contained in the well water using a filtration device, and sterilization is performed.

  For such a filtration device, for example, a sterilizer for injecting a chemical solution into well water and a filtration tank for removing iron and impurities and manganese contained in well water are used.

  The sterilizer is sequentially provided on the secondary side of a water supply pump that supplies well water, and sterilizes by injecting a chemical solution, for example, sodium hypochlorite, into the well water supplied by the water supply pump. In addition, the sterilizer oxidizes and deposits iron in the well water with a chemical solution. The filtration tank performs iron removal by filtering the precipitated iron. In addition, a filtration tank removes manganese by adsorbing manganese with the filter medium provided in the inside.

  The sterilizer includes a chemical tank for storing sodium hypochlorite and a flow rate detection unit for proportional flow rate injection having a rotor blade with a magnet for detecting the filtration flow rate. Furthermore, the sterilizer includes a diaphragm pump that injects a certain amount of sodium hypochlorite proportional to the filtration flow rate, a connecting pipe through which well water passes, and a chemical solution injection unit. In a sterilizer, hypochlorous acid injected by a diaphragm pump oxidizes iron ions contained in the raw water to insoluble ferric hydroxide, which is captured by a filter medium.

  It is known that sodium hypochlorite injected with a diaphragm pump is easily self-decomposed by the outside air temperature and ultraviolet rays, and mainly generates oxygen gas and the effective chlorine concentration decreases. Diaphragm pumps may cause poor injection called so-called gas lock, such as a decrease in injection volume or the inability to completely pump liquids, when oxygen gas bubbles generated in a chemical tank, suction pipe or pipe are sucked. In order to eliminate such a gas lock, it is known to use a gas-liquid separator (defoaming joint) for a chemical liquid injector. This gas-liquid separator is a system that is connected to the suction part of a metering pump, and the tip of the liquid outflow part is horizontally arranged on the upper side surface of a hollow container having a small diameter.

JP 2003-164710 A

  The above-described technique has the following problems. That is, in the gas-liquid separation device described above, bubbles that have flowed in from the liquid inflow portion accumulate in the upper part of the hollow container, the liquid level may drop to the liquid outflow portion, and the injection pump may suck up the bubbles. Further, since the fine bubbles of oxygen gas generated inside the gas-liquid separation device adhere to the inner surface of the hollow container and do not float upward, there is a possibility that bubbles adhering to the inner surface of the hollow container are sucked from the liquid outflow portion.

A gas-liquid separation device according to one aspect of the present invention is provided with a liquid inflow pipe on an upper side wall of a separation container configured by a hollow hollow container configured to contain a liquid therein and separate gas and liquid. A liquid outflow pipe is provided on a side wall below the liquid inflow pipe, an exhaust part having an opening for allowing gas to flow out to the outside is provided at an upper part of the separation container, and an inner opening of the exhaust part is provided in the separation container. An inner opening of the liquid inflow pipe is disposed in an upper central part of the separation container, and an inner opening of the liquid outflow pipe is disposed in a lower central part of the separation container. And
A gas-liquid separation device according to another aspect of the present invention includes a liquid inflow pipe formed on a hollow side of a separation container configured by a cylindrical hollow container configured to store a liquid therein and separate the gas and the liquid. A liquid outflow pipe is provided on a side wall below the liquid inflow pipe, an exhaust part having an opening for allowing gas to flow out to the outside is provided in an upper part of the separation container, and an inner opening of the exhaust part is the separation opening. Disposed on the upper wall of the container, the inner opening of the liquid inflow pipe is disposed at a position closer to the center line than an intermediate position between the inner wall surface of the upper part of the separation container and the center line, and the inner opening of the liquid outflow pipe is It is arranged at a position closer to the center line than an intermediate position between the inner wall surface of the lower part of the separation container and the center line.

The sterilizer according to another aspect of the present invention includes the gas-liquid separation device, the chemical solution tank, a diaphragm pump that sends the chemical solution in the chemical solution tank, and a chemical solution injection unit that injects the chemical solution using the diaphragm pump. The gas-liquid separator is provided between the chemical tank and the diaphragm pump, and the opening outside the exhaust part is arranged to reach a position higher than the highest liquid level of the chemical tank. It is characterized by that.

  According to the present invention, bubbles in the hollow container can be prevented from flowing out from the liquid outflow portion.

Explanatory drawing which shows the structure of the filtration apparatus concerning one Embodiment of this invention. Explanatory drawing which shows the structure of the sterilizer concerning the embodiment. The side view of the gas-liquid separator concerning the embodiment. The top view which shows the structure of the same gas-liquid separator. The side view which shows the structure of the gas-liquid separation apparatus concerning other embodiment of this invention. The side view which shows the structure of the gas-liquid separation apparatus concerning other embodiment of this invention. The side view which shows the structure of the gas-liquid separation apparatus concerning other embodiment of this invention. The top view which shows the structure of the gas-liquid separation apparatus concerning other embodiment of this invention.

  Hereinafter, a filtration device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4.

1 is an explanatory view schematically showing the configuration of the filtration device 100, FIG. 2 is a side view of a sterilizer 101 used in the filtration device 100, FIG. 3 is a side view of a gas-liquid separation device 40, and FIG. FIG. 3 is a plan view of a separation device 40. In FIG. 3, a partial cross-section is shown to show the internal configuration.

  A filtration device 100 shown in FIG. 1 is a filtration device that pumps raw water such as a well W and filters impurities such as sterilization, sterilization, manganese removal, and solids. A sterilizer 101 and a filtration tank 102 and a control unit 103. In FIG. 1, F is the well water flow, G is the chemical flow, S is the signal line, X is the normal operation water flow, Y is the backwash operation water flow, and Z is the wash operation. Shows the flow of water by each.

  The primary side of the sterilizer 101 is connected by a pipe U to a feed water pump 104 that pumps up raw water through a sand filter 105.

  As shown in FIG. 2, the sterilizer 101 includes a gantry 11, a chemical solution tank (chemical solution tank) 12, a chemical solution injection means 13, and a connecting pipe 14. The chemical liquid tank 12 is provided on the gantry 11 and is formed therein so that sodium hypochlorite can be stored as a chemical liquid. The chemical liquid tank 12 is provided with a water level sensor 15 for detecting the water level in the chemical liquid tank 12. The chemical liquid tank 12 is connected to the chemical liquid injection means 13 via the chemical liquid supply pipe 16. The chemical liquid injection means 13 includes a diaphragm type diaphragm pump 17 capable of quantitatively injecting chemical liquid, a chemical liquid discharge pipe 18 provided at the discharge port of the diaphragm pump 17, and a secondary side of the connecting pipe 14 provided in the chemical liquid discharge pipe 18. And a chemical solution injector 19 provided in the device. The water level sensor 15 measures the amount of medicine stored in the chemical tank 12 and sends the value to the control unit 103.

  The connecting pipe 14 forms a pipe line that is a flow path of well water (fluid). The connecting pipe 14 includes a pipe part 21 forming a pipe line, a flow rate sensor 22 provided on the primary side of the pipe part 21, and an injection part 23 provided on the secondary side of the pipe part 21. . The flow sensor 22 has a rotor blade with a magnet, detects the filtration flow rate by detecting the rotation speed of the rotor blade, and sends the value to the control unit 103. Further, a pressure sensor 20 is provided in the connecting pipe 14. The pressure sensor 20 measures the pressure generated in the connection pipe 14 on the suction side of the diaphragm pump 17 and sends the value to the control unit 103.

  The chemical liquid supply pipe 16 is a tube made of, for example, soft vinyl chloride, and communicates the chemical liquid tank 12 with the inlet 17 a of the diaphragm pump 17. A gas-liquid separator 40 is provided in the middle of the chemical liquid supply pipe 16.

  The gas-liquid separation device 40 includes a separation container 41, a liquid inflow pipe 42, a liquid outflow pipe 43, and an exhaust part 44.

  The separation container 41 is a hollow container configured in a transparent cylindrical shape with a material such as hard vinyl chloride (PVC), for example, and separates gas and liquid by accumulating liquid inside and floating bubbles. The separation container 41 includes a cylindrical side wall 41a, a disk-shaped upper wall 41b, and a bottom portion 41c. The bottom 41c has a mounting portion 41d that protrudes outward. In this mounting portion 41d, the bottom portion 41c is fastened and fixed to the upper surface of the gantry 11 by a mounting tool such as a screw member.

  The liquid inflow pipe 42 is provided on the upper portion of the side wall 41a of the separation container 41, communicates the inside and outside of the separation container 41, and allows the liquid to flow into the separation container 41 from the outside. The liquid inflow pipe 42 is located above the center in the height direction of the separation container 41, and preferably has a height dimension h1 from the bottom 41c of 3/4 or more of the total height dimension h0 as shown in FIG. Is arranged. For example, here, h1 = 85 mm and h0 = 100 mm.

  The outer end 42b, which is one end side of the liquid inflow pipe 42, communicates with the inside of the chemical liquid tank 12 through the chemical liquid supply pipe 16a. The inner opening 42 a on the other end side of the liquid inflow pipe 42 is opened at the central portion in the separation container 41. That is, the inner opening 42 a of the liquid inflow pipe 42 is disposed so as to protrude inward from the inner wall surface of the separation container 41. For example, the inner opening 42a of the liquid inflow pipe 42 is disposed at a position closer to the center line C1 than an intermediate position between the inner wall surface of the separation container 41 and the center line C1. A stop valve 50 that can be opened and closed is provided in the middle of the chemical solution supply pipe 16a. By opening the stop valve 50, the liquid is supplied to the chemical liquid supply pipe 16 a on the downstream side of the chemical liquid tank 12 and on the upstream side of the gas-liquid separator 40.

  The liquid outflow pipe 43 is provided below the side wall 41a of the separation container 41, communicates the inside and outside of the separation container 41, and causes the liquid in the separation container 41 to flow out of the separation container 41. The liquid outflow pipe 43 is below the center in the height direction of the separation container 41, and preferably the height dimension h2 from the bottom 41c is ¼ or less of the total height dimension h0 as shown in FIG. Placed in position. For example, here, h2 = 12 mm.

  The outer end 43b, which is one end of the liquid outflow pipe 43, communicates with the inflow port 17a of the diaphragm pump 17 through the chemical liquid supply pipe 16b. An inner opening 43 a which is the other end side of the liquid outflow pipe 43 reaches the central portion in the separation container 41. The inner opening 43 a of the liquid outflow pipe 43 protrudes inward from the inner wall surface of the separation container 41 and is spaced apart from the inner side surface of the bottom 41 c of the separation container 41. That is, the end part inside the liquid outflow pipe 43 is disposed so as to protrude inward from the inner wall surface of the separation container 41. For example, the inner opening 43a of the liquid outflow pipe 43 is disposed at a position closer to the center line C1 than an intermediate position between the inner wall surface of the separation container 41 and the center line C1. In addition, the distance from the inner surface of the bottom 41c is set in consideration of the size of bubbles, and is set to 10 mm or more in the present embodiment, for example.

  The exhaust part 44 is provided at the center of the upper wall of the separation container 41, and has an inner opening 44a that communicates the inside and outside of the separation container 41 and allows the gas in the separation container 41 to flow out. The outer opening 44d on the other end side of the tube 44c connected to the exhaust part 44 is disposed at a position higher than the maximum liquid level in the chemical liquid tank 12.

  The liquid inflow pipe 42, the liquid outflow pipe 43, and the exhaust part 44 are all members made of hard vinyl chloride in a tubular shape, and holes 42e and 43e formed in the side wall 41a and the upper wall 41b of the separation container 41. , 44e. Further, liquid supply pipes 16a, 16b and a tube 44c are connected to the liquid inflow pipe 42, the liquid outflow pipe 43, and the outer ends 42b, 43b, 44b of the exhaust part 44, respectively. The fixing member 46 is fastened.

  The diaphragm pump 17 has a pressure feeding chamber formed therein, and is provided with an inflow port 17a and an outflow port 17b. The performance of the diaphragm pump 17 is, for example, about 40 mL / min.

  As shown in FIG. 1, the secondary side of the sterilizer 101 is connected to the filtration tank 102 by a pipe U. A pipe U between the sterilizer 101 and the filtration tank 102 is provided with a first three-way valve 106 (backwash valve). One port of the first three-way valve 106 is connected to the drainage part D, and water from the secondary side of the first three-way valve 106 can be drained to the drainage part D by switching the port.

  The filtration tank 102 includes a tank 102a and includes an internal pipe 102b that forms a well water flow path from the sterilizer 101 to the inside of the tank 102a. The filtration tank 102 is connected to a pipe U as a discharge pipe at the bottom of the tank 102a. This pipe U is connected to the second three-way valve 110 (switching valve).

  In the tank 102a, a filter medium, a filter medium for removing manganese, and a filter medium for removing iron are sequentially laminated. For example, precipitated iron can be captured and removed, and manganese in well water is removed by contact oxidation or the like. It is made possible.

  The internal pipe 102b is disposed inside from the upper side surface of the filtration tank 102, and discharges the well water pumped from the water supply pump 104 toward the ceiling of the tank 102a. It is formed to be able to diffuse uniformly.

  The secondary side of the filtration tank 102 is connected to the water storage tank 114 by a pipe U. In the secondary pipe U of the filtration tank 102, a second three-way valve 110, a third three-way valve 111 (cleaning valve), a strainer 112, and a first gate valve 113 are sequentially provided. One of the ports of the third three-way valve 111 is connected to the drainage part D and is formed so that drainage is possible.

  A water supply unit 200 for supplying water to a building G such as a building or a residence is connected to the water storage tank 114. In addition, the second gate valve 116 is connected to the water storage tank 114 by a pipe U, and the second gate valve 116 and the second three-way valve 110 are connected by a pipe U via a backwash pump 117.

  The control unit 103 includes a storage unit that stores various types of information, a calculation / control unit that performs various types of data processing, a display device that displays various types of information, an input device that inputs various types of information, and the like. The control unit 103 is connected to signal lines from a water level sensor 15 provided in the chemical liquid tank 12, a pressure sensor 20 provided in the connecting pipe 14, a flow rate sensor 22 provided in the connecting pipe 14, and the like. Yes. The control unit 103 controls the opening / closing of each valve port and the operation state of each pump in accordance with the detection result of each sensor, so that the filter device 100 can be operated normally, exhausted, backwashed, washed, etc. To do.

  The filtration device 100 configured as described above switches the three-way valves 106, 110, and 111 so as to obtain the water flow X in FIG. 1 and supplies well water by the water supply pump 104, and the sterilizer 101 and the filtration device. Normal operation by so-called normal use is performed in which sterilization and filtration are performed in the tank 102.

  Further, the filtration device 100 integrates the supplied flow rate of the well water, and when the integrated flow rate reaches a predetermined flow rate, the filtration device 100 performs cleaning, particularly, the backwash operation for cleaning the filtration tank 102. I do. In the backwash operation, the control unit 103 (control means) switches the three-way valves 106, 110, and 111 and drives the backwash pump 117 so that the water flow Y in FIG. The water in the water storage tank 114 is pumped by the backwash pump 117, and the water passes through the filtration tank 102, thereby allowing impurities such as iron and manganese in the filtration tank 102 to flow and draining to the drainage part D. Become.

  In addition, the filtration device 100 performs a cleaning operation for removing impurities generated by the backwashing operation. In the washing operation, the control unit 103 switches the three-way valves 106, 110, and 111 so that the water flow Z in FIG. The water containing impurities in the filtration tank 102 during the backwash operation is drained from the drainage part D via the third three-way valve 111. This prevents water containing impurities during the backwash operation from flowing into the water storage tank 114. The control unit 103 performs the cleaning operation for a predetermined time and then switches the operation to the normal operation and resets the integrated flow rate.

Hereinafter, the operation of the gas-liquid separator 40 according to the present embodiment will be described. In general, sodium hypochlorite is easily self-decomposed by outside air temperature, ultraviolet rays, etc., and it is known that the effective chlorine concentration decreases mainly by generating oxygen gas as shown in the following chemical formula 1. .

2NaClO → 2NaCl + O ₂ ... Chemical formula 1
In the present embodiment, oxygen gas bubbles generated in the chemical liquid tank 12 and the chemical liquid supply pipe 16 flow into the separation container 41 from the liquid inflow pipe 42 of the gas-liquid separator 40. At this time, in the separation container 41, the bubbles are discharged through the opening 44a of the upper exhaust portion 44, and the liquid from which the bubbles are removed is discharged from the liquid outflow portion 43 provided on the lower side wall, and the diaphragm pump 17 Sucked into.

  At this time, bubbles generated in the chemical liquid tank 12 may adhere to the inner wall or move along the inner wall in the separation container 41. In this embodiment, however, the inner opening 43a of the liquid outflow pipe 43 is formed in the inner wall 43a. It protrudes in the direction and is separated from the inner wall surfaces of the side wall 41a and the bottom 41c. For this reason, the liquid outflow pipe 43 has a structure in which bubbles are not easily sucked.

  The performance of the diaphragm pump 17 is as small as about 40 mL / min, and the flow rate in the gas-liquid separation device 40 is also intermittent and extremely slow. Therefore, the chemical liquid containing bubbles does not descend to the liquid outflow portion 43 as it is.

  Accordingly, since the lower layer of the gas-liquid separator 40 is always filled with the liquid from which the bubbles are separated, bubbles do not enter from the liquid outflow portion 43 provided on the lower side wall, and only the chemical solution is injected by the diaphragm pump 17. Is done.

  In the gas-liquid separation device 40 according to the above-described embodiment, the inner opening 43a of the liquid outflow pipe 43 is protruded inward so as to be separated from the inner wall of the separation container 41, thereby sucking bubbles attached to the inner surface of the side wall 41a. Can be prevented.

  Diaphragm pump 17 may cause injection failure such as so-called gas lock, such as a decrease in injection amount or complete pumping failure when air bubbles are sucked. In the present embodiment, the gas-liquid separation device 40 is interposed on the suction side of the diaphragm pump 17, which is likely to occur when using a 12% stock solution that is easily decomposed into a chemical solution stored in the chemical solution tank in order to increase the injection concentration. As a result, gas bubbles can be discharged in advance to prevent gas lock.

  Further, when the tip of the liquid outflow portion 43 is directed downward, it is easy to suck in the bubbles attached to the tip. However, in this embodiment, since it is upward, the attached bubbles are difficult to suck. Further, since the separation container 41 is transparent, bubbles can be visually observed.

  Since the liquid inflow pipe 42, the liquid outflow pipe 43, and the exhaust part 44 have a structure in which tubular members are inserted and fixed in the holes 42e, 43e, 44e of the separation container 41, disassembly and cleaning are easy. .

  In addition, this invention is not limited to the said embodiment, A various deformation | transformation implementation is possible in the range which does not deviate from the summary of this invention. In addition, the specific configuration of each unit is not limited to that illustrated in the above embodiment, and can be changed as appropriate.

  In the said embodiment, although illustrated about the case where the gas-liquid separation apparatus 40 was used for the chemical | medical solution injection apparatus of the sterilizer 101, it is not restricted to this, Even if it is a case where it uses for another use, A similar gas-liquid separation effect can be obtained.

  For example, in the said embodiment, although the structure which had the planar upper wall 41b and the cylindrical side wall 41a was illustrated, it is not restricted to this. For example, in the gas-liquid separation device 140 according to the embodiment shown in FIG. 5, the diameter of the exhaust part 44 is set larger than the diameters of the liquid inflow pipe 42 and the liquid outflow pipe 43 and is directed from the upper end of the side wall to the opening 44 a of the exhaust part 44. And a conical upper inner wall 45 that is continuous. In this case, bubbles attached to the inner surface of the side wall 41a move upward along the inner wall, and further guided to the exhaust portion 44 along the inner surface of the upper inner wall 45 formed continuously from the upper end of the side wall. The effect of gas-liquid separation can be further improved.

  In another embodiment, in the gas-liquid separation device 240 shown in FIG. 6, the inner end of the liquid outflow pipe 43 is bent upward at the center inside the separation container 41. Since the inner opening 43 a of the liquid outflow pipe 43 opens upward, even if bubbles may adhere to the inner opening 43 a of the liquid outflow pipe 43, the bubbles are not easily sucked into the liquid outflow pipe 32.

  In another embodiment, in the gas-liquid separator 340 shown in FIG. 7, the nozzle tip of the liquid outflow portion 43 is tapered to reduce the outer diameter of the tip. This configuration can prevent bubbles from adhering.

  In the gas-liquid separation device 440 shown in FIG. 8 as another embodiment, the attachment portion 41d is connected to the connection tube 14 by a fixture such as a screw member while the bottom surface of the bottom portion 41c is in contact with the upper surface of the connection tube 14 for flow rate detection. It is fastened and fixed. The connection pipe 14 and the attachment part 41d are made of metal, and the gas-liquid separator 440 conducts heat with the connection pipe 14 via the attachment part 41d. Well water flows into the connecting pipe 14 and is stable at a low temperature of about 15 ° C. even in midsummer. Therefore, the separation container 41 attached in contact with the connecting pipe 14 is cooled to decompose sodium hypochlorite. It is possible to suppress bubble generation and reduce bubble generation.

  Further, like the liquid outflow pipe 43 of the gas-liquid separation device 240, the inner opening 42a of the liquid inflow pipe 42 may be bent upward at the upper central portion inside the separation container 41 and opened upward. With such a configuration, since the air bubbles flowing from the inner opening 42a are immediately guided to the opening 44a of the nearby exhaust part 44, the air bubbles hardly stay in the separation container 41, and high gas-liquid separation effect is obtained. can get.

Furthermore, the present invention can be realized even if some of the constituent features of the above-described embodiment are omitted. Hereinafter, the invention described in the scope of claims of the present application will be appended.
[1]
A separation container configured to be hollow and containing liquid therein to separate gas and liquid;
A liquid inflow pipe configured to communicate between the inside and outside of the separation container, and for allowing a liquid to flow into the separation container from the outside;
A liquid outflow pipe configured to communicate between the inside and outside of the separation container, an inner end projecting inward from the inner wall surface of the separation container, and a liquid outflow pipe for allowing the liquid in the separation container to flow out to the outside;
A gas-liquid separation device comprising: an exhaust unit provided at an upper portion of the separation container, having an opening that communicates the inside and outside of the separation container and allows the gas in the separation container to flow out.
[2]
The separation container is composed of a cylindrical hollow container,
The liquid inlet pipe is provided on the upper side wall of the separation container;
The liquid outflow pipe is provided on a side wall below the liquid inflow pipe in the separation container,
The gas-liquid separator according to [1], wherein the exhaust section is provided on an upper wall above the liquid inflow pipe in the separation container.
[3]
An inner opening of the exhaust part is disposed in a central portion of the upper wall of the separation container,
An inner opening of the liquid inflow pipe is disposed in an upper central portion of the separation container;
The gas-liquid separator according to [2], wherein an inner opening of the liquid outflow pipe is disposed at a lower central portion of the separation container.
[4]
The gas-liquid separation device according to [1], wherein an inner opening of the liquid outflow pipe is spaced apart from the bottom surface of the separation container.
[5]
The gas-liquid separator according to [1], wherein the separation container includes a cylindrical side wall and a conical upper wall continuous from the upper end of the side wall toward the opening of the exhaust part.
[6]
The gas-liquid separator according to [1], wherein the separation container is formed of a transparent container.
[7]
The gas-liquid separator according to [1], wherein an inner opening of at least one of the liquid inflow pipe and the liquid outflow pipe opens upward.
[8]
[1] the gas-liquid separator,
A chemical bath,
A diaphragm pump for feeding the chemical liquid in the chemical tank;
A chemical solution injection part for injecting a chemical solution by the diaphragm pump,
The gas-liquid separator is provided between the chemical tank and the diaphragm pump,
The sterilizer characterized in that the outside opening of the exhaust part is arranged to reach a position higher than the highest liquid level of the chemical solution tank.
[9]
The sterilizer according to [8], wherein the separation container is attached to a connecting pipe that forms a flow path of well water therein.

  DESCRIPTION OF SYMBOLS 12 ... Chemical solution tank, 13 ... Chemical solution injection means, 14 ... Connection pipe, 17 ... Diaphragm pump, 18 ... Chemical solution discharge pipe, 19 ... Chemical solution injector, 20 ... Pressure sensor, 21 ... Pipe part, 22 ... Flow rate sensor, 23 ... Injecting section, 40, 140, 240, 340, 440 ... gas-liquid separator, 41 ... separation container, 42 ... liquid inflow pipe, 43 ... liquid outflow pipe, 44 ... exhaust section, 45 ... upper inner wall, 100 ... filtering apparatus, 101 ... sterilizer, 102 ... filtration tank, 103 ... control unit.

Claims (8)

A liquid inflow pipe is provided on the upper side wall of a separation container composed of a hollow hollow container that contains liquid inside and separates gas and liquid, and liquid is provided on the side wall below the liquid inflow pipe. An outflow pipe is provided, and an exhaust part having an opening for allowing gas to flow out to the outside is provided at the upper part of the separation container,
An inner opening of the exhaust part is disposed in a central portion of the upper wall of the separation container,
An inner opening of the liquid inflow pipe is disposed in an upper central portion of the separation container;
The gas-liquid separator according to claim 1, wherein an inner opening of the liquid outflow pipe is disposed at a lower central portion of the separation container . A liquid inflow pipe is provided on the upper side wall of the separation container composed of a hollow hollow container configured to store liquid inside and separate gas and liquid, and liquid outflow is provided on the side wall below the liquid inflow pipe. A pipe is provided, and an exhaust part having an opening for allowing gas to flow out to the outside is provided at the upper part of the separation container,
The inner opening of the exhaust part is disposed on the upper wall of the separation container,
The inner opening of the liquid inflow pipe is disposed at a position closer to the center line than an intermediate position between the inner wall surface of the upper part of the separation container and the center line,
The gas-liquid separation device, wherein the inner opening of the liquid outflow pipe is disposed at a position closer to the center line than an intermediate position between the inner wall surface of the lower part of the separation container and the center line . The gas-liquid separation device according to claim 1 or 2, wherein an inner opening of the liquid outflow pipe is spaced apart from the bottom surface of the separation container. The said separation container is provided with the cylindrical side wall and the conical upper wall which continues toward the opening of the said exhaust part from the upper end of the said side wall, The Claim 1 thru | or 3 characterized by the above-mentioned. Gas-liquid separator. The gas-liquid separator according to any one of claims 1 to 4, wherein the separation container is formed of a transparent container. Gas-liquid separation device according to any one of claims 1 to 5 wherein at least one of the inner opening of the liquid inlet pipe and the liquid outlet pipe characterized in that it open upward. A gas-liquid separation device according to any one of claims 1 to 6,
A chemical bath,
A diaphragm pump for feeding the chemical liquid in the chemical tank;
A chemical solution injection part for injecting a chemical solution by the diaphragm pump,
The gas-liquid separator is provided between the chemical tank and the diaphragm pump,
The sterilizer characterized in that the outside opening of the exhaust part is arranged to reach a position higher than the highest liquid level of the chemical solution tank . The sterilizer according to claim 7, wherein the separation container is attached to a connecting pipe that forms a flow path of well water therein.

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