JP2011031116A - Liquid mixing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid mixing system capable of mixing a first liquid and a second liquid at a prescribed mixing ratio and outputting the mixed liquids. <P>SOLUTION: The liquid mixing system includes a first container 10 for storing a first liquid L1, wherein two phases, i.e., gas and liquid phases are formed, a mixer 30 including a flow path 31 for a second liquid L2 to flow therethrough, a first communication path 61 that allows the flow path 31 to communicate with the liquid phase section 11L of the first container 10, and a second container 20 wherein two phases, i.e., gas and liquid phases are formed, with its gas phase section 21G communicating with the gas phase section 11G of the first container 10 and its liquid phase section 21L communicating with the flow path 31. The mixer 30 includes a differential-pressure generation mechanism 50 for generating a differential pressure by virtue of the second liquid L2 flowing in the flow path 31. The second liquid L2 flowing in the flow path 31 generates a differential pressure, whereby the first liquid L1 is outputted into the flow path 31 via the first communication path 61 communicating with the liquid phase section 11L of the first container 10 and is mixed with the second liquid L2. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a liquid mixing system that mixes a first liquid with a second liquid and outputs the mixed liquid.

Patent Document 1 discloses a water supply member for gardening and a water supply device for gardening using the water supply member. In the water supply device for horticulture disclosed in Patent Document 1, a water tank for storing liquids such as water, liquid fertilizer, and medicine, a tube for discharging liquid from the water tank, and a water supply member inserted into the ground of the flower pot The water supply member is arranged at a position lower than the outlet of the water tank.
JP 2001-17010 A

  There are cases where two different liquids are mixed at a predetermined ratio and the mixed liquid (mixed liquid) is supplied. For example, when the liquid fertilizer is diluted with water so as to have a predetermined ratio (concentration) to obtain a mixed solution, and the mixed solution is supplied to trees, flowers, etc., the technique described in Patent Document 1 applies to the trees, flowers, etc. The liquid mixture to be supplied needs to be prepared in advance (mixed at a predetermined ratio). On the other hand, in various fields including the field of horticulture, there is a desire to supply two different liquids while mixing them at a predetermined ratio instead of mixing them at a predetermined ratio in advance.

  FIG. 5 shows an example of a liquid mixing system. In the liquid mixing system 100, for example, liquid fertilizer 101 is diluted with water 102 and supplied to trees, flowers, and the like. The mixing system 100 includes a container 110 that stores the liquid fertilizer 101, a mixer 120 that includes a flow path 130 through which water 102 flows, and an orifice 131 provided in the flow path 130. The upstream side of the orifice 131 of the flow path 130 and the gas phase 110G of the container 110 communicate with each other through a communication path 141. Further, the downstream side of the orifice 131 of the flow path 130 and the liquid phase 110 </ b> L of the container 110 communicate with each other through the communication path 142.

  In this liquid mixing system 100, when water 102 is introduced from one end 130 a of the flow channel 130 into the flow channel 130 by connecting one end 130 a of the flow channel 130 to household water supply or the like, the water 102 that passes through the orifice 131 is used. As a result, the downstream side (exit side) becomes negative with respect to the upstream side (inlet side) of the orifice 131. Due to this differential pressure, part of the water 102 flows into the container 110 through the communication path 141, and the liquid fertilizer 101 is pushed by the water 102 that has flowed into the container 110 through the communication path 141, and passes through the communication path 142. Then, it is sucked into the flow path 130 and mixed with the water 102 that has passed through the orifice 131. And it discharges from the other end 130b of the flow path 130 as the liquid mixture 103 (the liquid fertilizer 101 diluted with the water 102).

  According to the liquid mixing system 100, the liquid fertilizer 101 can be supplied while being mixed with the water 102 by connecting the one end 130 a of the flow path 130 to a tap or the like. However, in this liquid mixing system 100, since the water 102 flows into the container 110, the liquid fertilizer 101 in the container 110 is gradually diluted by the water 102. For this reason, the density | concentration of the liquid fertilizer 101 in the liquid mixture 103 also falls gradually. Therefore, in this liquid mixing system 100, it is difficult to supply while mixing two different liquids at a predetermined ratio (a constant ratio).

  For example, when the specific gravity of the liquid fertilizer 101 to be used is larger than the specific gravity of the water 102, the liquid fertilizer 101 and the water 102 are separated by the specific gravity, and the liquid fertilizer 101 is separated at a predetermined ratio (a constant ratio). It may be possible to supply water 102 while mixing. However, it is not easy to hold the two liquids separated by the specific gravity, and the liquid fertilizer 101 inside the container 110 is thinned. As a result, the liquid fertilizer concentration of the mixed liquid 103 gradually decreases.

  One embodiment of the present invention is a liquid mixing system in which a first liquid is mixed with a second liquid and output. This liquid mixing system includes a first container that contains a first liquid and in which two phases of gas and liquid are formed, and a mixer that includes a flow path through which the second liquid flows. The mixer includes a differential pressure generating mechanism that generates a differential pressure by the second liquid flowing in the flow path. The liquid mixing system further includes a first communication path that allows the flow path and the liquid phase portion of the first container to communicate with each other, and outputs the first liquid to the flow path by the differential pressure generated by the differential pressure generating mechanism. And a first container for mixing with the second liquid and a second container in which two phases of gas and liquid are formed, wherein the gas phase portion communicates with the gas phase portion of the first container. The liquid phase portion has a second container communicating with the upstream side of the differential pressure generating mechanism of the flow path. In this liquid mixing system, a differential pressure is generated by the second liquid flowing in the flow path, and the first liquid is passed through the first communication path communicating with the liquid phase portion of the first container by the differential pressure. Is output to the flow path and mixed with the second liquid.

  According to this liquid mixing system, since the gas phase part of the first container and the gas phase part of the second container communicate with each other, the internal pressure of the first container and the internal pressure of the second container become substantially equal. . When the second liquid is introduced into the flow path, if the pressure on the flow path side is high, a part of the second liquid flows into the liquid phase portion of the second container, and the internal pressure of the second container increases and balances. . The internal pressure of the first container is almost the same as the internal pressure of the second container and is in a balanced state.

  When the differential pressure is generated by the second liquid flowing in the flow path, the downstream side (exit side) of the flow path has a negative pressure with respect to the upstream side (inlet side) of the differential pressure generating mechanism. Since the internal pressure of the first container is balanced with the pressure on the upstream side via the gas phase portions of the first and second containers, the first container causes the first pressure to rise from the liquid phase portion of the first container. The liquid is sucked (blowed out) into the flow path through the first communication path and mixed with the second liquid.

  That is, in the second container, the gas phase part is pushed by the second liquid introduced into the liquid phase part of the second container (the gas phase part is pushed by the liquid phase part), and the first container Inside, the liquid phase part is pushed by the gas introduced into the gas phase part of the first container communicating with the gas phase part of the second container (the liquid phase part is pushed by the gas phase part). The liquid in the liquid phase part in the first container is pushed by the gas introduced into the gas phase part of the first container, and the first liquid is output to the flow path via the first communication path. Mix with the second liquid.

  According to this liquid mixing system, since the first container and the second container communicate with each other via the gas phase, the pressure on the upstream side of the differential pressure generation mechanism of the flow path is a gas (gas phase, typically In particular, air or a gas containing liquid vapor in each container) is transmitted as a medium. For this reason, basically, the second liquid does not flow into the first container. Therefore, the first liquid is not diluted by the second liquid, and is output while mixing two different liquids (first liquid and second liquid) at a predetermined ratio (a constant ratio). Can do.

  In this liquid mixing system, it is preferable to provide a first check valve in the first communication path. By providing the first check valve in the first communication path so that the liquid (second liquid and / or mixed liquid) does not flow backward from the flow path into the first container, for example, Even when the supply of the second liquid is stopped, it is possible to prevent the liquid (mixed liquid and / or second liquid) from flowing backward from the flow path to the first container.

  Further, in this liquid mixing system, it is preferable that a flow rate adjusting mechanism for changing an opening area of the first communication path is provided in the first communication path. The mixing ratio of the first liquid with respect to the second liquid (mixing ratio of the liquid mixture) can be adjusted.

  Furthermore, it is preferable that the liquid mixing system further includes a second communication path that allows the flow path to communicate with the outside, and a second check valve is provided in the second communication path. When the supply of the second liquid to the flow path is stopped, the second liquid in the liquid phase portion flows out to the flow path in the second container. For this reason, the inside of the first container and / or the second container may be negative with respect to the atmospheric pressure, and in some cases, the first container and / or the second container is dented or crushed. There is a risk of Therefore, when the flow path is not pressurized, the inside of the first container and / or the second container is balanced with the atmospheric pressure, and the first container and / or the second container are dented or crushed. It is desirable to prevent this.

  Further, since a gas such as air is a compressible fluid with respect to a liquid such as water, volume fluctuation due to pressure is large. Therefore, when the second container is compressed by the second liquid, the second container has a capacity such that the second liquid forming the liquid phase does not flow into the first container. It is desirable. Typically, the capacity of the second container is preferably greater than the capacity of the first container.

  In this liquid mixing system, an example of the mixer is connected to the first container in addition to the differential pressure generating mechanism, so that the liquid phase portion of the first container and the first communication path communicate with each other. By connecting the port and the second container, the second port in which the liquid phase portion of the second container communicates with the flow path, the third port provided at one end of the flow path, and the flow path And a fourth port provided at the other end.

  In this liquid mixing system, the first container and the second container are preferably detachable from the mixer. A liquid mixing system can be constructed by attaching the first container and the second container to the mixer.

  Accordingly, another aspect of the present invention is a mixer that mixes a first liquid with a second liquid. The mixer is a flow path through which a second liquid flows, a differential pressure generating mechanism that generates a differential pressure by the second liquid flowing through the flow path, and a first container that contains the first liquid, By connecting to the first container in which the gas-liquid two phases are formed, the first liquid is output to the flow path from the liquid phase portion of the first container by the differential pressure of the differential pressure generating mechanism of the flow path. By connecting the first communication path and the liquid phase portion of the first container to the first port and the second container, the second phase is formed when the gas-liquid two phase is formed inside. A second port communicating with the liquid phase portion of the container and the upstream side of the differential pressure generating mechanism of the flow path, a third port provided at one end of the flow path, and provided at the other end of the flow path And a fourth port. The mixer connects the first container to the first port and connects the second container to the second port so that the gas phase portion and the second gas phase portion of the first container are connected to each other. Communicated. According to this mixer, a differential pressure is generated by the second liquid flowing in the flow path, and the first liquid is output from the liquid phase portion of the first container to the flow path by the differential pressure, and the second liquid Mix with liquid.

  By using this mixer, it is possible to output the first liquid mixed with the second liquid at a predetermined ratio (a constant ratio). That is, it is possible to output a mixed liquid mixed at a predetermined ratio (a constant ratio).

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view of a liquid mixing system according to an embodiment of the present invention. FIG. 2 is an enlarged view of the vicinity of the mixer of the liquid mixing system of FIG. FIG. 3 is a diagram schematically showing a schematic configuration of the liquid mixing system of FIG. 1, and shows a state where the first container and the second container are removed from the mixer. FIG. 4 is a diagram schematically showing a schematic configuration of the liquid mixing system of FIG. 1, and shows a state in which the first container and the second container are attached to the mixer.

  This liquid mixing system 1 is a system suitable for supplying liquid fertilizer diluted with water at a predetermined ratio to trees, flowers and the like. The system 1 uses the liquid fertilizer L1 as the first liquid, the water L2 as the second liquid, mixes the liquid fertilizer L1 with the water L2, and outputs the liquid fertilizer L1 diluted with the water L2 as the mixed liquid L3. To do.

  The liquid mixing system 1 includes a first container 10, a second container 20, and a mixer 30 including a flow path 31. The first container 10 is typically a PET bottle having a mouth in the upper part, and liquid fertilizer (first liquid) L1 is formed inside, and a gas-liquid two phase is formed inside (the gas phase portion 11G and The liquid phase portion 11L is formed). That is, the first container 10 is not filled with the first liquid L1 without a gap, but there is at least some gap in the vicinity of the upper mouth, and that portion can be handled as the gas phase portion 11G. It is like that. The first container 10 is configured such that an upper port (port) 12 can be screwed and fixed to a port for connection with the mixer 30 as described below.

  The second container 20 is also typically a PET bottle and is connected to the mixer 30 with the mouth (port) 22 facing down. The second container 20 has a function as an accumulator, and when the water (second liquid) L2 flows into the flow path 31, the second liquid L2 is also introduced into the second container 20. The internal pressure of the second container 20 and the water pressure flowing through the flow path 31 are balanced. Accordingly, the second container 20 includes a liquid phase 21L of the second liquid L2 that has flowed into the inside thereof, and a layer of air (including the vapor phase and the vapor of the second liquid L2) 21G compressed thereby. A gas-liquid two phase is formed. As the second container 20, a container whose capacity is sufficiently larger than the capacity of the first container 10 is employed. Since air is more compressible than water (second liquid) L2, its volume decreases when pressurized. Therefore, by sufficiently increasing the capacity of the second container 20, when the air is compressed by the water (second liquid) L2, the water (second liquid) L2 is contained in the first container 10. There is no inadvertent introduction.

  The mixer 30 connects the flow path 31 through which the second liquid L2 flows, the first port 41 for connecting the port 12 of the first container 10, and the port 22 of the second container 20. A second port 42, a third port 43 provided at one end 31 a of the flow path 31, a fourth port 44 provided at the other end 31 b of the flow path 31, and a second flow flowing in the flow path 31. And a differential pressure generating mechanism 50 that generates a differential pressure by the liquid L2. Typically, the first port 41 is provided in the lower part of the mixer 30, and the second port 42 is provided in the upper part of the mixer 30. For this reason, the second container 20 is connected to the mixer 30 in an upside down state with respect to the first container 10. In this example, an orifice is provided in the flow path 31 as the differential pressure generating mechanism 50. As the differential pressure generating mechanism 50, an ejector or the like may be provided in the flow path 31.

  The port 12 and the first port 41 of the first container 10 have a corresponding screw (thread groove) structure, and the first container 10 is mixed by screwing the port 12 into the first port 41. It can be attached to the container 30. The mixer 30 is further provided with a first communication path 61 that communicates the downstream side of the orifice 50 of the flow path 31 with the liquid phase portion 11L of the first container 10. In this example, the mixer 30 is provided with a first path 61a from the flow path 31 toward the first port 41, and the first port 41 is connected to the first path 61a. One tube 61b extends. Therefore, when the first container 10 is attached to the first port 41 of the mixer 30, the first tube 61 b reaches the liquid phase portion 11 </ b> L of the first container 10. Therefore, the first communication path 61 that connects the liquid phase portion 11L of the first container 10 and the downstream side of the orifice 50 of the flow path 31 is formed by the first path 61a and the first tube 61b. The That is, when the first container 10 is attached to the first port 41 of the mixer 30, the first communication path that connects the liquid phase portion 11 </ b> L of the first container 10 and the downstream side of the orifice 50 of the flow path 31. 61 is formed.

  The first communication path 61 (more specifically, in the first path 61 a) is provided with a flow rate adjusting mechanism 70 that varies the opening area of the first communication path 61. For example, a needle (screw) that can protrude and retract with respect to the first communication path 61 can be used as the flow rate adjusting mechanism 70. The opening area of the first communication path 61 changes depending on the amount of protrusion of the needle 70 into the first communication path 61, and the flow rate can be adjusted.

  A first check valve 81 is provided in the vicinity of the first communication passage 61, more specifically, in the vicinity of the connection portion between the first path 61a and the first tube 61b. In the first check valve 81, the water L2 flows into the orifice 50 and the downstream of the orifice 50 is decompressed, and the first liquid L1 flows from the liquid phase portion 11L of the first container 10 to the flow path 31. Opens when it is introduced. On the other hand, when the flow of the water L2 is stopped, the first check valve 81 is closed, and the liquid (second liquid L2 and / or mixed liquid L3) is prevented from flowing back from the flow path 31 to the first container 10. To do.

  The mixer 30 is further provided with a second communication path 62 that communicates the upstream side of the orifice 50 of the flow path 31 with the outside (atmosphere). The second communication passage 62 is provided with a second check valve 82. The second check valve 82 closes when the water L2 flows through the flow path 31 and is pressurized, and opens when the water L2 stops. For this reason, when the water L2 is stopped, the inside of the mixer 3, the inside of the second container 20, and the inside of the first container 10 communicating with the second container 20 can be opened to the atmosphere. Therefore, it is possible to prevent the inside of the first container 10 and / or the second container 20 from having a negative pressure with respect to the atmosphere, and the container 10 and / or 20 can be prevented from being dented or damaged. Further, by releasing the air, when the water L2 is stopped, the drain can be smoothly discharged from these containers 10 and 20, and further from the mixer 30.

  Corresponding screw (thread groove) mechanisms are provided in the port 22 of the second container 20 and the second port 42 of the mixer 30. Accordingly, the second container 20 is attached to the mixer 30 by screwing the port 22 into the second port 42. As the first container 10 and the second container 20, for example, commercially available PET bottles can be used. When the mixer 30 is unnecessary, the first container 10 and the second container 20 are mixed. It can be removed from the vessel 30.

  The mixer 30 is further provided with a third communication path 63 that communicates the second port 42 with the upstream side of the orifice 50 of the flow path 31. Therefore, the second container 20 and the upstream side of the orifice 50 of the flow path 31 can be communicated with each other by connecting the port 22 of the second container 20 to the second port 42. The second container 20 is attached to the mixer 30 so that the mouth 22 faces downward. Accordingly, when the water L2 is caused to flow through the flow path 31, the water L2 accumulates below the second container 20 through the third communication path 63, and the liquid phase portion 21L of the second container 20 and the flow path 31 are collected. The upstream side of the orifice 50 is communicated by a third communication path 63.

  The mixer 30 includes a second path 64a connecting the first port 41 and the second port 42, and a second tube 64b extending upward from the second path 64a of the second port 42. The 4th communicating path 64 containing is provided. Therefore, when the second container 20 is connected to the second port 42, the second tube 20 is connected to the upper part of the second container 20 (the part that becomes the gas phase part 21G when the liquid mixing system 1 is used). 64b arrives. Therefore, when the first container 10 and the second container 20 are connected to the mixer 30, the upper part of the first container 10 (the part that becomes the gas phase part 11G in the state of containing the first liquid L1) ) And the gas phase portion 21 </ b> G of the second container 20 are communicated by the fourth communication path 64. The fourth communication path 64 shown in FIG. 3 and FIG. 4 intersects the flow path 31 three-dimensionally so as not to communicate with the flow path 31.

  In this liquid mixing system 1, a differential pressure is generated by water (second liquid) L <b> 2 supplied from a water supply or the like and flowing in the flow path 31, and communicates with the liquid phase portion 11 </ b> L of the first container 10 by the differential pressure. The liquid fertilizer (first liquid) L1 in the first container 10 is output to the flow path 31 through the first communication path 61, and is mixed with the water L2 and output. At that time, the liquid fertilizer L1 in the first container 10 can be prevented from being diluted by the water L2.

  This liquid mixing system 1 is used as follows. First, an amount of liquid fertilizer (first liquid) L <b> 1 that does not become full is placed in the first container 10 and attached to the first port 41 of the mixer 30. An empty second container 20 is attached to the second port 42 of the mixer 30. A tube 91 or the like connected to household water supply or the like is attached to the third port 43 of the mixer 30. A tube 92 from which the mixed liquid L3 is discharged is attached to the fourth port 44 of the mixer 30.

  In the liquid mixing system 1 of the present example, the first container 10 is attached to the mixer 30 upward below the mixer 30, and the second container 20 is attached to the mixer 30 downward above the mixer 30. It is assumed that it can be attached. Therefore, the liquid level of the first liquid L1 in the first container 10 is lower than that of the second container 20. When the liquid level of the first liquid L1 in the first container 10 is higher than the second container 20, the first liquid L1 in the first container 10 is converted into the second container 20 by the siphon effect. This is not preferable because it flows into

  When the second liquid L2 is introduced into the flow path 31, a part of the second liquid L2 flows into the liquid phase portion 21L of the second container 20 and pressurizes the second container 20. In addition, the second liquid L2 passes through the orifice 50 through the flow path 31. A liquid phase portion 21L and a gas phase portion 21G are formed inside the second container 20, and the gas phase portion 21G communicates with the gas phase portion 11G of the first container 10 through the fourth communication path 64. . Therefore, the internal pressure of the second container 20 and the internal pressure of the first container 10 are balanced with the pressure upstream of the orifice 50 in the flow path 31.

  The second liquid L2 flowing in the flow path 31 generates a differential pressure between the upstream side and the downstream side of the orifice 50, the downstream side (exit side) is depressurized, and the downstream side has a negative pressure with respect to the upstream side. Since the internal pressure of the first container 10 is pressurized so as to be balanced with the pressure upstream of the orifice 50 via the second container 20, the first liquid L 1 is supplied from the first container 10 to the orifice 50. The air is blown out through the first communication passage 61 and mixed with the second liquid L2 in the flow path 31 and output.

  Specifically, since the gas phase portion 21G of the second container 20 communicates with the gas phase portion 11G of the first container 10 through the fourth communication path 64, the internal pressure of the second container 20 is the air pressure. It is transmitted to the first container 10 via the phase portions 21G and 11G. For this reason, in the first container 10, the liquid phase part 11 </ b> L is pressurized by the gas phase part 11 </ b> G of the first container 10.

  The downstream side of the orifice 50 of the flow path 31 and the liquid phase portion 11 </ b> L of the first container 10 communicate with each other through the first communication path 61. For this reason, the liquid in the liquid phase portion 11L in the first container 10 is pressurized to the gas phase portion 11G and output to the flow path 31 to be mixed with the second liquid L2. Alternatively, since the downstream of the orifice 50 becomes a negative pressure with respect to the pressure of the first container 10, the first liquid L <b> 1 is sucked out of the first container 10 into the flow path 31 by the pressure. Good. Such an effect is called an ejector effect, and the first liquid L1 flows from the liquid phase portion 11L of the first container 10 via the first communication path 61 due to the differential pressure generated by the orifice 50. It is sucked into the flow path 31 and mixed with the second liquid L2 that has passed through the orifice 50. When the liquid mixing system 1 is operated, in the first container 10, the first liquid L1 is used, the liquid phase portion 11L is reduced, and the volume of the gas phase portion 11G is increased. However, since the gas phase portion 11G communicates with the gas phase portion 21G of the second container 20 through the fourth communication path 64, the internal pressure of the first container 10 is equal to the internal pressure of the second container 20. Thus, gas is supplied from the second container 20. As a result, in the second container 20, the second liquid L2 is introduced, and the liquid phase portion 21L increases (the liquid level increases). However, since the liquid (second liquid) L2 does not flow from the second container 20 to the first container 10, even if the first liquid L1 in the first container 10 decreases, the first liquid L1. The concentration of will not be reduced. Further, even if the first liquid L1 decreases, the internal pressure of the first container 10 does not change, so that the first liquid L1 passes through the flow path 31 at a predetermined concentration until the first liquid L1 is almost exhausted. Can be mixed with the second liquid L2.

  The outflow amount of the first liquid L1 can be adjusted by moving the flow rate adjusting mechanism 70 and changing the opening area of the first communication path 61. Therefore, the liquid (second liquid) L2 can be diluted to a desired concentration and supplied as the mixed liquid L3 until the first liquid L1 is finished.

  When the introduction of the second liquid L2 into the flow path 31 is stopped, for example, when the water supply is stopped, the water pressure is not applied to the flow path 31, and the pressure of the gas phase portion 21G is increased in the second container 20. A part of the second liquid L 2 accumulated in the second container 20 flows into the flow path 31. In the second container 20, the amount of the second liquid L2 remains substantially the same as the amount of the first liquid L1 used, but the second liquid L2 flows through the flow path due to the head difference of the liquid phase portion 21L. 31 may flow out. And if it flows out, the inside of the 2nd container 20 may be pressure-reduced and may become a negative pressure with respect to atmospheric pressure. In addition, the internal pressure of the first container 10 communicating with the second container 20 is also negative with respect to the reduced atmospheric pressure, or the first liquid L1 is second due to the pressure difference (siphon effect). There is a possibility of being sucked into the container 20.

  First, in the mixer 30, a first check valve 81 is provided in the first communication path 61. When the internal pressure of the first container 10 becomes negative with respect to the atmospheric pressure, the first check valve 81 is closed, so that the second liquid L2 and / or the mixed liquid is introduced into the first container 10 from the flow path 31. L3 is introduced and the first liquid L1 in the first container 10 can be prevented from being diluted by them.

  Next, in the mixer 30, the 2nd check valve 82 is provided, and when the flow path 31 becomes lower than atmospheric pressure, the 2nd check valve 82 will open. For this reason, the inside of the first container 10 and / or the second container 20 does not become lower than the atmospheric pressure, and the first container 10 and the second container 20 are depressed or crushed by the atmospheric pressure. Can be prevented. Moreover, the situation where the liquid L1 in the first container 10 flows back to the second container 20 can be prevented.

  As described above, according to the liquid mixing system 1 and the mixer 30 used therein, the first liquid L1 is mixed with the second liquid L2 at a predetermined ratio (a constant ratio) and output. Can do. Further, according to the liquid mixing system 1 and the mixer 30 used therefor, the first and second containers 10 and 20 are detachable from the mixer 30, so that no dedicated container is prepared. However, existing containers may be used as the first and second containers 10 and 20. In other words, it can be distributed only by the mixer 30.

  Further, according to this liquid mixing system 1, the first check valve 81 is provided in the first communication path 61 and the second check valve 82 is provided in the second communication path 62. Even if the introduction of the second liquid L2 into the flow path 31 is stopped, the second liquid L2 enters the first container 10 or the first container 10 and / or the second container 20 is damaged. It is difficult to do. Furthermore, according to this liquid mixing system 1, since the capacity of the second container 20 is larger than the capacity of the first container 10, the second liquid L2 is inadvertently introduced into the first container 10. There is nothing.

  This liquid mixing system and mixer can be widely used not only for horticulture, but also when the first liquid is mixed with the second liquid and output.

The side view which shows the liquid mixing system concerning one Embodiment of this invention. The perspective view which expands and shows the vicinity of the mixer of the liquid mixing system of FIG. It is a figure which shows the schematic structure of the liquid mixing system of FIG. 1 typically, Comprising: The figure which shows the state which removed the 1st container and the 2nd container from the mixer. It is a figure which shows the schematic structure of the liquid mixing system of FIG. 1 typically, Comprising: The figure which shows the state which attached the 1st container and the 2nd container to the mixer. The figure which shows typically schematic structure of the conventional liquid mixing system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Liquid mixing system 10 1st container 11G Gas phase part of 1st container, 11L Liquid phase part of 1st container 20 2nd container 21G Gas phase part of 2nd container, 21L Liquid of 2nd container Phase portion 30 Mixer, 31 Flow path 41, First port, 42 Second port 43 Third port, 44 Fourth port 50 Orifice (differential pressure generating mechanism)
61 First communication path, 62 Second communication path 70 Flow rate adjusting mechanism, 81 First check valve, 82 Second check valve L1 First liquid, L2 Second liquid

Claims (8)

A liquid mixing system for mixing and outputting a first liquid to a second liquid,
A first container containing the first liquid and having a gas-liquid two-phase formed therein;
A mixer including a flow path through which the second liquid flows,
The mixer includes a differential pressure generating mechanism that generates a differential pressure by the second liquid flowing in the flow path,
Further, the liquid mixing system is a first communication path that communicates the flow path and the liquid phase portion of the first container, and the first liquid is supplied by the differential pressure generated by the differential pressure generating mechanism. A first communication path for outputting to the flow path and mixing with the second liquid;
A second container in which a gas-liquid two phase is formed, wherein a gas phase portion communicates with the gas phase portion of the first container, and a liquid phase portion is upstream of the differential pressure generating mechanism of the flow path. A liquid mixing system having a second container in communication with the side. The mixer of claim 1, further comprising:
By connecting to the first container, the first port connecting the liquid phase portion of the first container and the first communication path and the second container are connected to each other. A second port in which the liquid phase part of the container of 2 communicates with the flow path, a third port provided at one end of the flow path, and a fourth port provided at the other end of the flow path And a liquid mixing system.   3. The liquid mixing system according to claim 1, wherein a first check valve is provided in the first communication path.   4. The liquid mixing system according to claim 1, wherein a flow rate adjusting mechanism that varies an opening area of the first communication path is provided in the first communication path. 5. In any one of Claims 1 thru | or 4, It further has the 2nd communicating path which connects the said flow path and the exterior,
The liquid mixing system, wherein a second check valve is provided in the second communication path.   6. The liquid mixing system according to claim 1, wherein a capacity of the second container is larger than a capacity of the first container.   7. The liquid mixing system according to claim 1, wherein the first container and the second container are detachable from the mixer. A mixer for mixing a first liquid with a second liquid,
A flow path through which the second liquid flows;
A differential pressure generating mechanism for generating a differential pressure by the second liquid flowing in the flow path;
A first container that contains the first liquid, and is connected to a first container in which two phases of gas and liquid are formed, whereby the differential pressure of the differential pressure generating mechanism of the flow path A first port through which a first communication path for outputting the first liquid from the liquid phase portion of the first container to the flow path and a liquid phase portion of the first container are communicated;
By connecting to the second container, when the gas-liquid two phase is formed inside, the liquid phase part of the second container and the upstream side of the differential pressure generating mechanism of the flow path are communicated. Two ports,
A third port provided at one end of the flow path;
A fourth port provided at the other end of the flow path,
By connecting the first container to the first port and connecting the second container to the second port, the gas phase portion of the first container and the second gas phase portion Is connected to the mixer.

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