JP2011256979A - Fluid valve - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve both securement of sealing performance and reduction of pressure loss in a fluid valve used at pressure below atmospheric pressure.SOLUTION: The fluid valve includes a partition member 51 in which a communication port 52 is formed, a valve body which is made from a thin plate elastic member and can block the communication port 52 by covering the communication port 52, and a support member 57 arranged in the communication port 52 and supporting the valve body by coming in contact with the surface of the valve body when the valve body blocks the communication port 52 block. A seal section 56 for sealing between the partition member 51 and the valve body when the valve body blocks the communication port 52 is arranged on a surface of the partition member 51 at a side where the valve body is arranged so as to surround an outer periphery of the communication port 52, and a peripheral-direction support member 571 with a shape along the seal section 56 is arranged as a support member 57. The peripheral-direction support member 571 is arranged at a side closer to an outer peripheral section of the communication port 52 rather than the center of the communication port 52 when viewed from a flow direction of a fluid circulating the communication port 52.

Description

  The present invention relates to a fluid valve used under a pressure equal to or lower than atmospheric pressure, and is effective when applied to a water vapor valve for an adsorption refrigerator having an adsorbent that adsorbs or desorbs a refrigerant.

  Conventionally, as a water vapor valve used in an adsorption refrigerator, a valve that mechanically opens and closes a communication port according to a differential pressure before and after the communication port is employed. In such a water vapor valve, a rib-like rib is provided on the inner side of the communication port, thereby suppressing the deformation of the valve body when the valve is closed and improving the sealing performance (for example, patent document) 1).

Japanese Patent No. 3831959

  By the way, the fluid valve used under the pressure below atmospheric pressure has a feature that the differential pressure before and after the communication port is very small as 1 atmosphere or less. Therefore, since the pressure applied to the valve body when the valve is closed is also reduced, it is required to ensure sealing performance. In addition, since the differential pressure before and after the communication port is very small, it is necessary to secure the flow rate of the fluid passing through the communication port, so that a reduction in pressure loss at the communication port is also required.

  However, the steam valve described in Patent Document 1 has a problem in that pressure loss increases because lattice-shaped ribs are provided in the entire communication port.

  An object of this invention is to provide the fluid valve which can aim at coexistence with ensuring of sealing performance and reduction of a pressure loss in view of the said point.

  In order to achieve the above object, according to the first aspect of the present invention, in the fluid valve used under a pressure equal to or lower than the atmospheric pressure, the space in which the fluid exists is divided into the first space and the second space, and the first It is formed of a partition member (51) formed with a communication port (52) for communicating the space and the second space, and a thin plate elastic member, and the communication port (52) can be closed by covering the communication port (52). The valve body (53) is disposed in the communication port (52). When the valve body (53) closes the communication port (52), the valve body (53) comes into contact with the surface of the valve body (53). ) And a support member (57) for supporting the valve body (53) on the surface of the partition member (51) where the valve body (53) is disposed when the valve body (53) closes the communication port (52). Seal part (56) for sealing between the partition member (51) and the valve body (53) However, it is provided so that the outer periphery of a communicating port (52) may be enclosed, and the supporting member (57) has the circumferential direction supporting member (571) of the shape along the seal | sticker part (56), and the circumferential direction The support member (571) is characterized in that the support member (571) is disposed closer to the outer peripheral portion than the center of the communication port (52) when viewed from the flow direction of the fluid flowing through the communication port (52).

  According to this, since the circumferential support member (571) is disposed closer to the outer periphery than the center of the communication port (52), it is possible to suppress the deformation of the valve body (53) at the time of closing, thereby Sealability can be improved. In addition, since the circumferential support member (571) is not disposed near the center of the communication port (52), the communication port (compared to the prior art (having grid-like ribs disposed throughout the communication port)) The pressure loss of the fluid passing through 52) can be reduced. Therefore, it is possible to achieve both the sealing performance and the reduction of pressure loss.

  In the present invention, the “center of the communication port (52)” means the center of the circular shape when the communication port (52) is formed in a circular shape, and is formed in a polygonal shape such as a rectangular shape. If it is, it means the center of gravity of the polygonal shape.

  In addition, the “shape along the seal portion (56)” in the present invention does not mean that the circumferential support member (571) is completely parallel to the seal portion (56). That is, for example, in the fluid valve in which the seal portion (56) is formed in a circular shape when viewed from the flow direction of the fluid flowing through the communication port (52), the circumferential support member (571) has a polygonal shape. In the fluid valve in which the seal portion (56) is formed in a rectangular shape, the circumferential support member (571) is formed in a circular shape.

  Further, in the invention according to claim 2, in the fluid valve according to claim 1, when the support member (57) is viewed from the flow direction of the fluid flowing through the communication port (52), the communication port (52 ), And a radial support member (572) extending toward the outer periphery of the communication port (52). According to this, the strength of the fluid valve can be improved.

  According to a third aspect of the present invention, in the fluid valve according to the second aspect, a plurality of radial support members (572) are provided, as viewed from the flow direction of the fluid flowing through the communication port (52). The angle between adjacent radial support members (572) is equal to each other. According to this, since the radial support member (572) can be arranged in a balanced manner, the pressure loss of the fluid passing through the communication port (52) can be further reduced, and the strength of the fluid valve can be further improved.

  According to a fourth aspect of the present invention, in the fluid valve according to any one of the first to third aspects, a part of the valve body (53) is fixed to the periphery of the communication port (52). (54) and is attached to the partition member (51). The part of the partition member (51) to which a part of the valve body (53) is fixed and the communication port (52) are sandwiched on the opposite side. The part (free end side) is characterized by projecting toward the valve body (53) rather than the part (fixed end side) where a part of the valve body (53) is fixed. According to this, it is possible to ensure good sealing performance even in the fluid valve in which the fixed end side of the valve body (53) is arranged on the upper side in the vertical direction than the free end side.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

It is a whole lineblock diagram showing an adsorption refrigeration machine in an embodiment of the present invention. 3 is a perspective view showing a first water vapor valve 41. FIG. 3 is a cross-sectional view showing a first water vapor valve 41. FIG. 3 is a plan view showing a partition member 51 of a first water vapor valve 41. FIG. It is the schematic diagram which looked at the communicating port 52 of the 1st water vapor | steam valve | bulb 41 from the flow direction of water vapor | steam. FIG. 6 is a characteristic diagram showing the relationship between the amount of water vapor leaked when the valve is closed and the pressure loss of water vapor flowing through the communication port 52.

  Hereinafter, an embodiment in which a fluid valve according to the present invention is applied to a water vapor valve of an adsorption refrigeration machine will be described with reference to FIGS. FIG. 1 is an overall configuration diagram showing an adsorption refrigerator in the present embodiment.

  As shown in FIG. 1, this adsorption refrigerator is configured by disposing a first adsorber 11, a second adsorber 12, a condenser 13 and an evaporator 14 in one vacuum vessel 10, Furthermore, it has a portion for transferring heat to the outside of the vacuum vessel 10. The inside of the vacuum vessel 10 has a predetermined degree of vacuum below atmospheric pressure as a whole, and the vacuum vessel 10 contains a required amount of water as a refrigerant.

  The vacuum vessel 10 is formed in a substantially square shape, and the inside thereof is partitioned into four spaces. Of the two spaces extending in the vertical direction in FIG. 1 in the vacuum vessel 10, the first adsorber 11 is disposed in the left space, and the second adsorber 12 is disposed in the right space. The first and second adsorbers 11 and 12 are configured by holding a large number of granular adsorbents (for example, silica gel, zeolite, etc.) in a case in which air permeability is ensured. In addition, heat transfer tubes 11a and 12a through which fluids (in this embodiment, engine cooling water) for cooling and heating the adsorbents inside are provided in the cases of the adsorbers 11 and 12, respectively. . The adsorbent has a property of adsorbing the gas refrigerant with high capacity in the cooled state and desorbing the adsorbed gas refrigerant in the heated state to regenerate the adsorption capacity.

  Among the two spaces extending in the left-right direction in FIG. 1 in the vacuum vessel 10, the condenser 13 is disposed in the upper space, and the evaporator 14 is disposed in the lower space. The condenser 13 is a heat exchanger that performs heat exchange between the air blown by the blower 13a and the vapor refrigerant (water vapor) to condense the vapor refrigerant. In the present embodiment, a fin tube type heat exchanger is used as the condenser 13.

  The evaporator 14 is a heat exchanger that performs heat exchange between a heat medium (for example, water or LLC) flowing through the heat transfer tube 14a and a liquid phase refrigerant (water) to evaporate the liquid phase refrigerant. In addition, the heat transfer tube 14a is configured to output cold heat when the liquid-phase refrigerant evaporates by a heat medium flowing through the heat transfer tube 14a.

  The condenser 13 and the evaporator 14 are connected by a condensed water passage 15 that supplies condensed water condensed by the condenser 13 to the evaporator 14. A capillary tube 15 a that generates a predetermined water flow resistance is provided in the middle of the condensed water passage 15.

  Next, a heating / cooling system for supplying a cooling fluid or a heating fluid to the heat transfer tubes 11a, 12a of the adsorbers 11, 12 will be described. The heat transfer tubes 11a and 12a are led out through the outer wall of the vacuum vessel 10 in an airtight manner. In this embodiment, engine cooling water is used as a cooling fluid or a heating fluid, a high-temperature heating fluid is generated using the cylinder head portion 21 of the engine as a heat source, and a low-temperature cooling fluid is generated by being cooled by the radiator 22. It is like that. Specifically, the radiator 22 is configured such that heat exchange is performed between the engine cooling water and the blown air of the blower 22a to cool the engine cooling water.

  The heating / cooling system includes two four-way valves 23 and 24 and two pumps 25 and 26. One end side of the heat transfer tube 11 a of the first adsorber 11 is connected to the first outlet port 23 b of the first four-way valve 23, and the other end side of the heat transfer tube 11 a is the second inlet port 24 c of the second four-way valve 24. It is connected to the. On the other hand, one end side of the heat transfer tube 12 a of the second adsorber 12 is connected to the second outlet port 23 d of the first four-way valve 23, and the other end side of the heat transfer tube 12 a is the first inlet of the second four-way valve 24. It is connected to the port 24a.

  The outlet side of the radiator 22 is connected to the second inlet port 23 c of the first four-way valve 23 via the first pump 25, and the inlet side of the radiator 22 is connected to the first outlet port 24 b of the second four-way valve 24. It is connected. Further, the outlet side of the cylinder head portion 21 is connected to the first inlet port 23 a of the first four-way valve 23 via the second pump 26, and the inlet side of the cylinder head portion 21 is the second side of the second four-way valve 24. It is connected to the outlet port 24d.

  In FIG. 1, the four-way valve 23 when supplying a heating fluid to the heat transfer tube 11 a of the first adsorber 11 (desorption step) and supplying a cooling fluid to the heat transfer tube 12 a of the second adsorber 12 (adsorption step). 24, the connection state of each port is indicated by a solid line. Here, in the first four-way valve 23, the first inlet port 23a and the first outlet port 23b are connected, and the second inlet port 23c and the second outlet port 23d are connected. In the second four-way valve 24, the first inlet port 24a and the first outlet port 24b are connected, and the second inlet port 24c and the second outlet port 24d are connected.

  Since the heating / cooling system is configured as described above, when the first pump 25 is driven, the low-temperature cooling fluid from the radiator 22 is supplied to the heat transfer pipe 12a of the second adsorber 12, and the internal adsorption is performed. After the heat exchange with the material, it returns to the radiator 22 again. On the other hand, when the second pump 26 is driven, a high-temperature heating fluid from the cylinder head portion 21 is supplied to the heat transfer tube 11a of the first adsorber 11, and after exchanging heat with the adsorbent inside, the cylinder head again. It returns to the part 21.

  Although detailed description is omitted, in the case where the adsorption process is performed by the first adsorber 11 and the desorption process is performed by the second adsorber 12, which is the reverse of the above, the first and second four directions are performed. The valves 23 and 24 are switched to a state indicated by a broken line in FIG. Thereby, the cooling fluid is supplied to the heat transfer tube 11a of the first adsorber 11, and the heating fluid is supplied to the heat transfer tube 12a of the second adsorber 12.

  By the way, in the vacuum vessel 10, there are a space in which the first adsorber 11 is arranged (hereinafter referred to as a first adsorber space 31) and a space in which the condenser 13 is arranged (hereinafter referred to as a condenser space 33). A first water vapor valve 41 for controlling the communication state is provided. As will be described in detail later, the first water vapor valve 41 opens to the condenser 13 side by the pressure difference when the pressure in the condenser space 33 is lower than the pressure in the first adsorber space 31. It has become. In the first water vapor valve 41, the first adsorber space 31 corresponds to the first space of the present invention, and the condenser space 33 corresponds to the second space of the present invention.

  Further, in the vacuum vessel 10, a second water vapor valve 42 that controls the communication state between the space in which the second adsorber 12 is disposed (hereinafter referred to as the second adsorber space 32) and the condenser space 33 is provided. ing. Similarly to the first water vapor valve 41, the second water vapor valve 42 opens to the condenser 13 side due to the pressure difference when the pressure in the condenser space 33 is lower than the pressure in the second adsorber space 32. It is like that.

  The vacuum vessel 10 is provided with a third water vapor valve 43 for controlling the communication state between the first adsorber space 31 and the space where the evaporator 14 is disposed (hereinafter referred to as the evaporator space 34). . When the pressure in the evaporator space 34 is higher than the pressure in the first adsorber space 31, the third water vapor valve 43 opens to the first adsorber 11 side due to the pressure difference.

  In the vacuum vessel 10, a fourth water vapor valve 44 that controls the communication state between the second adsorber space 32 and the evaporator space 34 is provided. Similarly to the third water vapor valve 43, the fourth water vapor valve 44 is also opened to the second adsorber 12 side by the pressure difference when the pressure in the evaporator space 34 is higher than the pressure in the second adsorber space 32. It comes to speak.

  2 to 4 show the configuration of the first to fourth water vapor valves 41 to 44 by using the first water vapor valve 41 as a representative. 2 is a perspective view showing the first water vapor valve 41, FIG. 3 is a cross-sectional view showing the first water vapor valve 41, and FIG. 4 is a plan view showing a partition member 51 described later of the first water vapor valve 41.

  As shown in FIGS. 2 to 4, the first water vapor valve 41 is formed in a thin plate shape, and includes a partition member 51 that partitions the inside of the vacuum vessel 10 into a first adsorber space 31 and a condenser space 33. The partition member 51 is formed with a communication port 52 that allows the first adsorber space 31 and the evaporator space 34 to communicate with each other. In this embodiment, the partition member 51 is formed in a circular shape when viewed from the flow direction of the water vapor flowing through the communication port 52, and the communication port 52 is a concentric circle centering on the circular center portion of the partition member 51. It is formed in a shape.

  The first water vapor valve 41 includes a valve body 53 that is formed of a thin plate elastic member and that can close the communication port 52 by covering the communication port 52. A part of the valve body 53 is attached to the partition member 51 by being pressed by a fixing member 54 around the communication port 52. The valve body 53 opens and closes with the portion pressed by the fixing member 54 as a fulcrum.

  On the outside of the valve body 53 (on the side opposite to the communication port 52), a guide portion 55 that restricts the deflection of the valve body 53 when the valve is opened is provided. The guide portion 55 is attached to the partition member 51 by being pressed by the fixing member 54, similarly to the valve body 53.

  The surface of the partition member 51 on the side where the valve body 53 is disposed contacts the partition member 51 when the valve body 53 closes the communication port 52 to seal between the partition member 51 and the valve body 53. A seal portion 56 is formed. The seal portion 56 is provided at the peripheral edge of the communication port 52 so as to surround the outer periphery of the communication port 52. For this reason, in the present embodiment, the seal portion 56 is formed in an annular shape (ring shape) with the center portion of the communication port 52 as the center. In the present embodiment, the seal portion 56 is formed integrally with the partition member 51.

  Further, as shown in FIG. 3, the part of the partition member 51 where the part of the valve body 53 is fixed and the part on the opposite side across the communication port 52 are more than the part where the part of the valve body 53 is fixed. It protrudes to the valve body 53 side. In other words, a portion of the support member 51 corresponding to the free end side of the valve body 53 protrudes closer to the valve body 53 than a portion of the support member 51 corresponding to the fixed end side of the valve body 53.

  FIG. 5 is a schematic view of the communication port 52 of the first water vapor valve 41 according to the present embodiment as viewed from the flow direction of water vapor. As shown in FIGS. 4 and 5, a support member 57 that supports the valve body 53 by contacting the surface of the valve body 53 when the valve body 53 closes the communication port 52 is provided inside the communication port 52. Is provided. The support member 57 is formed integrally with the partition member 51. Further, the support member 57 has a circumferential support member 571 having a shape along the seal portion 56 and an outer peripheral portion of the communication port 52 from the center of the communication port 52 when viewed from the flow direction of water vapor flowing through the communication port 52. And a radial support member 572 extending in the radial direction of the communication port 52. In the present embodiment, the circumferential support member 571 is formed in an annular shape centering on the central portion of the communication port 52.

  The circumferential support member 571 is disposed on the outer peripheral portion, that is, on the side closer to the seal portion 56 than the center of the communication port 52 when viewed from the flow direction of the water vapor flowing through the communication port 52. In other words, the portion of the radial support member 572 to which the circumferential support member 571 is connected is defined as the connection portion 573, and the total length of the radial support member 572 (the length from the center of the communication port 52 to the seal portion 56) is A. When the length from the connection portion 573 to the seal portion 56 in the radial support member 572 is a, the relationship of 0.5 <a / A <1 is satisfied.

  Here, the present inventor has studied a desirable shape of the support member 57. Specifically, in the case where the plate thickness t of the valve body 53 is 0.5 mm, the opening diameter Φ of the communication port 52 is 52 mm, and the differential pressure across the communication port 52 is 10 kPa, the presence or absence of the circumferential support member 571 and the installation thereof The loss coefficient ζ calculated from the amount of water vapor leaked when the valve was closed and the opening ratio of the communication port 52 when the position and the number of the radial support members 572 were changed were obtained. The examination result is shown in FIG.

  In FIG. 6, points A, B, and C indicate cases where the circumferential support member 571 is not provided and the number of radial support members 572 is 6, 4, and 3, respectively. As is clear from the solid line x in FIG. 6, the pressure loss can be reduced as the number of the radial support members 572 is reduced, while the amount of water vapor leaked when the valve is closed, that is, the sealing performance is lowered.

  In FIG. 6, six radial support members 572 are provided at points D, E, and F, and the positions of the circumferential support members 571 are different. Specifically, the point D is a = 2 mm, the point E is a = 6 mm, and the point F is a = 12 mm.

  As is clear from the solid line y in FIG. 6, the closer the circumferential support member 571 is to the center, the lower the pressure loss, but the greater the amount of water vapor leakage when the valve is closed, that is, the lower the sealing performance. This is considered to be caused by the circumferential support member 571 not being able to suppress deformation of the valve body 53 when the valve is closed. On the other hand, as is clear from the solid line z in FIG. 6, if the circumferential support member 571 is too close to the outer peripheral portion, the amount of water vapor leaked when the valve is closed is slightly increased, that is, the sealing performance is slightly reduced and the pressure is reduced. Loss is slightly increased.

  Based on the above examination results, in this embodiment, as indicated by a point G in FIG. 6, the number of radial support members 572 is three, and the arrangement position of the circumferential support members 571 is The relationship of 0.2 ≦ a / A ≦ 0.25 was satisfied. Thereby, while being able to improve a sealing performance more, pressure loss can be reduced more. In this case, when viewed from the flow direction of the water vapor flowing through the communication port 52, the angles θ formed by the adjacent radial support members 572 are equal to each other (120 ° in this embodiment).

  Here, the material of the partition member 51 and the valve body 53 will be described. Since the water vapor valve is used in a water vapor atmosphere under a pressure (vacuum) lower than the atmospheric pressure, the partition member 51 and the valve body 53 have a water vapor resistance (steam resistance) and a large amount. It is necessary to use a material that generates as little gas (outgas) as possible from the surface or inside of the material under a pressure environment lower than atmospheric pressure, that is, a material that does not contain a component that volatilizes under a pressure lower than atmospheric pressure. This is because when the amount of outgas generated is large, the degree of vacuum in the vacuum vessel 10 is lowered, and the performance of the adsorption refrigerator is lowered.

  As the material of the valve body 53, rubber is suitable, but from the outgas aspect described above, fluororubber containing no plasticizer (softener) is most suitable. This is because when a plasticizer is contained, the amount of outgas generated in a negative pressure environment increases. Further, as a rubber material other than the fluoro rubber, a water-resistant silicone rubber, EPDM (ethylene / propylene / diene terpolymer rubber), HNBR (hydrogenated nitrile rubber) or the like may be used. In addition to rubber, elastomers, resins, metals, and the like can be used as long as they have elasticity.

  Further, as for the material of the partition member 51, as with the valve body 53, generation of outgas is required to be as small as possible, so ceramic such as alumina is optimal. In addition to ceramic, metal, resin, or the like may be used.

  As described above, the circumferential support member 571 is disposed closer to the outer peripheral portion than the center of the communication port 52 when viewed from the flow direction of the water vapor flowing through the communication port 52, so that the valve is closed when the valve is closed. It is possible to suppress the deformation of the body 53 and improve the sealing performance. Further, since the circumferential support member 571 is not disposed in the vicinity of the center of the communication port 52, the water vapor passing through the communication port 52 as compared with the prior art (having grid-like ribs disposed throughout the communication port). The pressure loss can be reduced. Therefore, it is possible to achieve both the sealing performance and the reduction of pressure loss.

  Further, when the support member 57 is provided with a radial support member 572 extending from the center of the communication port 52 toward the outer peripheral portion of the communication port 52 when viewed from the flow direction of the water vapor flowing through the communication port 52, The strength of the valve can be improved. Furthermore, since the radial support members 572 can be arranged in a balanced manner by making the angles θ formed by the adjacent radial support members 572 equal to each other, the pressure loss of water vapor passing through the communication port 52 is further reduced. In addition, the strength of the water vapor valve can be further improved.

  In addition, a part of the partition member 51 where the part of the valve body 53 is fixed and a part on the opposite side (free end side) across the communication port 52 are replaced with a part where the part of the valve body 53 is fixed (fixed end side). ) To protrude toward the valve body 53 side, and even when the water vapor valve is arranged so that the fixed end side of the valve body 53 is vertically above the free end side, it is possible to ensure good sealing performance. Is possible.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and can be variously modified as follows without departing from the spirit of the present invention.

  (1) In the above embodiment, the fluid valve of the present invention is applied to a water vapor valve for an adsorption refrigeration machine. However, the present invention is not limited to this, and the present invention is widely used in general for fluid valves used under a pressure below atmospheric pressure. Of course, it is applicable.

  (2) In the above embodiment, the example in which the partition member 51 and the communication port 52 of the water vapor valve are formed in a circular shape has been described. However, the present invention is not limited to this, and may be formed in a rectangular shape or a polygonal shape. In this case, the circumferential support member 571 may be not only an annular shape but also a rectangular or polygonal shape.

51 Partition member 52 Communication port 53 Valve body 56 Seal part 57 Support member 571 Circumferential support member 572 Radial support member

Claims (4)

A fluid valve used under a pressure below atmospheric pressure,
A partition member (51) in which a space in which fluid exists is divided into a first space and a second space, and a communication port (52) for communicating the first space and the second space is formed;
A valve body (53) formed of a thin elastic member and capable of closing the communication port (52) by covering the communication port (52);
It arrange | positions in the said communication port (52), and when the said valve body (53) obstruct | occludes the said communication port (52), it supports the said valve body (53) by contact | abutting on the surface of the said valve body (53). And a supporting member (57)
On the surface of the partition member (51) on which the valve body (53) is disposed, the partition member (51) and the valve are closed when the valve body (53) closes the communication port (52). A seal portion (56) for sealing between the body (53) and the outer periphery of the communication port (52) is provided;
The support member (57) includes a circumferential support member (571) having a shape along the seal portion (56).
The circumferential support member (571) is disposed closer to the outer periphery than the center of the communication port (52) when viewed from the flow direction of the fluid flowing through the communication port (52). A fluid valve characterized by.   The support member (57) extends from the center of the communication port (52) toward the outer periphery of the communication port (52) when viewed from the flow direction of the fluid flowing through the communication port (52). The fluid valve according to claim 1, comprising a radial support member (572). A plurality of the radial support members (572) are provided,
The angle formed by the adjacent radial support members (572) when viewed from the flow direction of the fluid flowing through the communication port (52) is equal to each other. Fluid valve. A part of the valve body (53) is attached to the partition member (51) by being pressed by a fixing member (54) around the communication port (52),
In the partition member (51), a part of the valve body (53) is fixed to a part where the part of the valve body (53) is fixed and a part on the opposite side across the communication port (52). The fluid valve according to any one of claims 1 to 3, wherein the fluid valve protrudes further toward the valve body (53) than the portion.

Images