JP6029325B2 - Compound valve and water heater - Google Patents

Description

  The present invention relates to a composite valve including two types of valve bodies and a hot water supply apparatus including the composite valve.

  The main part of an example of the conventional hot water supply apparatus is shown in FIG. 7 (see also the following patent document 1). The hot water supply apparatus 200 basically includes a heat pump 210, a hot water storage tank 220 for storing hot water heated by the heat pump 210, and a pump 230 for circulating hot water between the heat pump 210 and the hot water storage tank 220. Yes.

  More specifically, a manually operated drainage three-way valve 240 is disposed between the hot water storage tank 220 and the pump 230 in the flow paths 260 and 261 connecting the bottom of the hot water storage tank 220 and the heat pump 210. Normally, the drainage three-way valve 240 is manually operated to connect the flow paths 260 and 261, whereby hot water in the hot water storage tank 220 is sent to the drainage three-way valve 240 → pump 230 → heat pump 210. The heat pump 210 is heated. On the other hand, when the water in the hot water storage tank 220 needs to be drained (emergency, maintenance, etc.), the drainage three-way valve 240 is manually operated to connect the flow paths 260 and 262, thereby Hot water in the tank 220 is discharged to an external drain through the drainage three-way valve 240.

  Further, in the flow paths 270, 271, and 272 for sending hot water heated by the heat pump 210 to the hot water storage tank 220, the operation is controlled by the control unit based on the temperature of the hot water detected by the temperature sensor, for example, electronic control A boiling three-way valve 250 composed of a motor-operated valve is provided. When the hot water heated by the heat pump 210 is sent to the upper part of the hot water storage tank 220 (when the hot water is hot), the flow paths 270 and 271 are connected by the boiling three-way valve 250 and sent to the lower part of the hot water storage tank 220 (hot water). When the temperature is low), the flow paths 270 and 272 are connected by the boiling three-way valve 250.

JP 2011-158159 A

  In the conventional hot water supply apparatus as described above, the boiling three-way valve 250 and the three-way valve 240 for drainage are necessary, and they are separately provided, so there is a dislike for increasing the cost of parts and piping, There was a problem that a large occupied space was required.

  The present invention has been made in view of the above problems, and the object of the present invention is to collect two types of three-way valves so as to reduce parts cost, piping cost, occupied space, etc. in a hot water supply device or the like. It is another object of the present invention to provide a combined valve and a hot water supply device having the same.

In order to achieve the above object, a composite valve according to the present invention basically includes a valve body provided with an inlet, a plurality of outlets, and an outlet, and flows into the valve body from the inlet. A first valve body for selectively causing the fluid to flow out from the plurality of outlets, first valve body driving means for opening and closing the first valve body, and the inside of the valve body from the inlet And a second valve body operating means for opening and closing the second valve body , wherein the first valve body is a rotary type. together are used ones, as the first valve body drive means, characterized in that the motor is used.

  As the second valve body, preferably, a lift type that is linearly advanced and retracted in a direction contacting and separating from the discharge port is used.

  Preferably, the second valve element operating means is a manual operation lever using the principle of lever that is rotated along the contact / separation direction so as to advance / retreat the second valve element in the direction of contact / separation with the discharge port. It is comprised including.

  Preferably, the second valve element operating means includes a threaded manual operation handle screwed into the valve main body and screw-fed to advance and retract the second valve element in the direction of moving toward and away from the discharge port. Consists of including.

  In a preferred embodiment, when the discharge port is closed by the second valve body, the fluid that has flowed into the valve body from the inflow port is directed to the outflow port through the second valve body portion. .

  In another preferred embodiment, a rotary type that is inserted into the valve body so as to be slidable and rotatable is used as the second valve body.

  The second valve element operating means preferably includes a manual operation handle for rotating the second valve element in the same plane.

  In a preferred aspect, when the discharge port is closed by the second valve body, the fluid that has flowed into the valve body from the inflow port is directed to the outflow port without passing through the second valve body portion. The

  In another preferred embodiment, a rotary type is used as the first valve body, a motor is used as the first valve body driving means, and the first valve body and the second valve body are bottomed. It is made into a cylindrical shape, and is inserted so as to be slidable and rotatable in fitting insertion portions provided at both end portions of the valve body that is formed into a vertically long cylinder shape so as to face each other.

  A hot water supply apparatus according to the present invention includes a heat pump, a hot water storage tank that stores hot water heated by the heat pump, and a pump that circulates hot water between the heat pump and the hot water storage tank, and the hot water heated by the heat pump is stored in the hot water storage. The composite valve described above is provided in the flow path to the tank, a plurality of outlets of the composite valve are connected to a supply port of the hot water storage tank, and a discharge port of the composite valve is connected to an external drain port. It is characterized by.

  In the composite valve according to the present invention, the first valve body portion mainly functions as a boiling three-way valve in a conventional hot water supply device, and the second valve body portion mainly functions as a drainage three-way valve 2. In this case, since two types of three-way valves (boiling three-way valve and drainage three-way valve) are grouped together, there is an effect that it is possible to reduce parts cost, piping cost, occupied space, and the like in a hot water supply device.

  Further, the hot water supply apparatus according to the present invention is provided with a discharge means for discharging the hot water in the heat pump to the outside in the flow path for sending the hot water heated by the heat pump to the hot water storage tank. The function of the boiling three-way valve and the drainage three-way valve can be achieved simply by adopting the valve, and the structure of the hot water supply apparatus is simplified, and the effects of reducing parts cost, piping cost, occupied space, etc. are achieved. .

It is a partial notch sectional view which shows 1st Example of the compound valve which concerns on this invention, (A) is the 2nd valve body: When closed, (B) is the 2nd valve body: When open. The 2nd valve body operating means of 1st Example is shown, (A) is an enlarged view which follows the C arrow line of FIG. 1 (A), (B) is a perspective view. The 2nd Example of the compound valve concerning this invention is shown, (A) is a front view, (B) is XX arrow sectional drawing of (A). The perspective view of 2nd Example. 2 shows another manually operated valve that can be used for the composite valve according to the present invention, wherein (A) shows a manual operation lever used as a valve body operating means, and (B) shows a screwed manual operation as a valve body operating means. A handle is used. The schematic block diagram which shows an example of the hot water supply apparatus with which the composite valve which concerns on this invention was used. The schematic block diagram which shows an example of the conventional hot water supply apparatus.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a partially cutaway cross-sectional view showing a first embodiment of a composite valve according to the present invention, where (A) shows a second valve body when closed, and (B) shows a second valve body when opened. 2A and 2B show the second valve element operating means of the first embodiment, in which FIG. 2A is an enlarged view according to the arrow C in FIG. 1A and FIG. 2B is a perspective view.

  The illustrated composite valve 1 basically has a substantially cylindrical valve body 10, an inlet 11 is provided at the lower part of the valve body 10, and a first outlet 12 and a second outlet are provided at the upper part thereof. The outlet 13 is provided to face the outlet 13 with an angular interval of 180 degrees, and the outlet 14 is provided immediately above the inlet 11 in the same direction as the second outlet 13.

  The second outlet 13 and the outlet 14 are made separately from the valve main body 10 and are attached later by welding or the like for convenience of assembly.

  In the portion of the valve body 10 where the first outlet 12 and the second outlet 13 are provided, the fluid that has flowed into the valve body 10 from the inlet 11 is selectively discharged from the outlets 12 and 13. A substantially spherical first valve body 20 taking a rotary type is arranged so as to be slidable and rotatable.

  The first valve body 20 is provided with an inverted L-shaped passage 22, and when the lateral opening 22 a of the passage 22 is rotated to a position facing the first outlet 12, a fluid (hot water) from the inlet 11 is formed. ) Flows toward the first outlet 12, and the fluid (hot water) from the inlet 11 flows toward the second outlet 13 when the lateral opening 22 a of the passage 22 is rotated to a position facing the second outlet 13. It is like that.

  A stepping motor 50 as a first valve body driving means for opening and closing (turning) the first valve body 20 is disposed at the top of the valve body 10.

More specifically, an upper receiving seat 15 having a bearing hole 16 formed in the central portion is provided at the uppermost portion of the valve body 10, and the stepping motor 50 is bolted onto the upper receiving seat 15 via a fixture or the like. It is attached with nuts. The rotation of the stepping motor 50 is transmitted by a rotary shaft 25 that is slidably rotated through the bearing hole 16.

  On the other hand, in the portion of the valve body 10 where the discharge port 14 is provided, the second valve body 30 for discharging the fluid flowing into the valve body 10 from the inlet 11 from the discharge port 14 and the second valve Second valve element operating means for opening and closing the body 30 is provided.

  The second valve body 30 is a lift type that linearly advances and retreats in the direction (in this case, the lateral direction) in contact with and away from the discharge port 14 (opening edge portion = valve seat 14a). It is comprised with the valve body part 32 which consists of hard rubber etc. which were externally fixed by the lower part (front-end | tip side) of the axial part 31. As shown in FIG. The shaft portion 31 is arranged so that the center axis C1 thereof coincides with the center line of the discharge port 14, and the upper portion (rear end side) is slidably inserted into the guide hole 34 provided in the valve body 10. And the upper end part is made to protrude outside the valve body 10. An upper end portion 34 a of the guide hole 34 is slightly protruded outward from the outer peripheral surface of the valve body 10.

  Further, a valve closing spring 38 made of a compression coil spring that constantly biases the second valve body 30 in the closing direction is compressed between the valve body portion 32 of the second valve body 30 and the inner peripheral surface of the valve body 10. It is disguised.

  The principle of the lever is that the second valve body operating means is swung along the contact / separation direction so as to advance / retreat the second valve body 30 in the direction to contact / separate the discharge port 14 (open end edge portion 14a). It includes a manual operation lever 35 utilizing the above.

  More specifically, the manual operation lever 35 is made of sheet metal and has a substantially flat handle portion 35a, a falling portion 35b that falls from the handle portion 35a, and a bifurcated bottom that bends about 90 degrees from the falling portion 35b. A portion 35c, a curved surface portion 35d connected to the bifurcated bottom portion 35c, a rising portion 35e rising from the curved surface portion 35d in parallel with the falling portion 35b, and a pair of left and right pin support portions 35f rising from both ends of the bottom portion 35c. The pin 36 inserted into the upper part of the second valve body 30 so as to form a cross is fitted into the pin support portion 35f so as to be slidable and rotatable.

  In addition, a pair of left and right guide uprights 37 are provided on the outer peripheral portion of the valve body 10, and both ends of the pin 36 are slidably inserted into the guide uprights 37. A guide groove 37a for guiding the second valve body in the contact / separation direction (lateral direction) is formed.

  The upper portion of the shaft portion 31 is passed through the bifurcated bottom portion 35c, and the bottom portion 35c is urged by the urging force of the valve closing spring 38 when the second valve body 30 closes the discharge port 14. The upper end 34 a of the guide hole 34 is press-contacted. Further, the distance from the pin 36 to the rising portion 35e is longer than the distance from the pin 36 to the bottom side portion 35c, and the distance from the pin 36 to the tip of the handle portion 35a is longer than the distance from the pin 36 to the rising portion 35e. (To take advantage of the lever principle).

  In the second valve body operating means having such a configuration, the second valve body 30 is moved from the state shown in FIG. In order to open the discharge port 14 by pulling away from the edge portion 14a), the handle portion 35a of the manual operation lever 35 is held, and the manual operation lever 35 is moved in the second valve body contacting / separating direction as shown in FIG. It is turned about 90 degrees in the (horizontal direction). As a result, the grip portion 35a serves as a force point and the pin 36 serves as a fulcrum, and the point of action shifts from the bottom portion 35c to the curved surface portion 35d to the rising portion 35e. Therefore, the shaft portion 31 is pulled up by the approximate difference between them, and the valve body portion 32 is separated from the discharge port 14 (opening edge portion 14a), and is shown in FIG. As shown, the outlet 14 is opened.

  Thus, in the composite valve 1 of the present embodiment, the first valve body 20 portion mainly functions as the boiling three-way valve 250 in the conventional hot water supply apparatus 200 shown in FIG. 7 described above, and mainly the second valve body 30 portion. Functions as a three-way valve 240 for drainage.

  Therefore, as shown in FIG. 6 (the parts corresponding to the conventional example of FIG. 7 are given the same reference numerals), in the hot water supply apparatus 100 according to the present invention to which the composite valve 1 is applied, the heat pump 210 is provided. The flow path 270 for sending hot water heated by the hot water storage tank 220 is connected to the inlet 11 of the composite valve 1, the first outlet 12 of the composite valve 1 is connected to the flow path 271, and the second outlet 13 is flowed By connecting to the passage 272 and connecting the outlet 14 of the composite valve 1 to an external drain through the passage 280, it is possible to have a function substantially similar to that of the conventional hot water supply apparatus 200.

  In the conventional hot water supply apparatus 200 shown in FIG. 7, the hot water in the hot water storage tank 220 is discharged using the three-way valve 240 for drainage, whereas in the hot water supply apparatus 100 of the present invention shown in FIG. The hot water flowing out from the heat pump 210 is discharged from the discharge port 14 of the composite valve 1, and the outlets for discharging the hot water are different in both apparatuses. However, since the heat pump 210 and the hot water storage tank 220 are connected to each other, and a heat pump cycle in which hot water circulates is configured, the (dirty) hot water is discharged from the heat pump cycle. In the hot water supply apparatus 100, the same hot water discharge effect as that of the conventional hot water supply apparatus 200 can be obtained.

  Further, in the case of the hot water supply device 100, since two types of three-way valves (boiling three-way valve 250 and drainage three-way valve 240) are grouped together, parts cost, piping cost, occupied space, etc. can be reduced in the hot water supply device or the like. There is an effect.

  In the hot water supply apparatus 100 according to the embodiment of the present invention, the hot water in the hot water storage tank 220 passes through the heat pump and is then discharged to the external drainage port via the composite valve 1 and the flow path 280. In order to save energy, it is desirable to stop the heat pump 210 during drainage.

Next, a second embodiment of the composite valve according to the present invention will be described.
3A and 3B show a second embodiment of the composite valve according to the present invention, in which FIG. 3A is a front view, and FIG. 3B is a cross-sectional view taken along line XX in FIG. FIG. 4 is a perspective view of the second embodiment. In the composite valve 2 of the second embodiment, portions corresponding to the respective parts of the composite valve 1 of the first embodiment described above are denoted by common reference numerals, and redundant description is omitted.

  The composite valve 2 of the second embodiment shown in the figure has a substantially cylindrical valve body 40, and the first outlet 12 and the second outlet 13 are spaced 180 degrees above the valve body 40. The inflow port 11 is provided in an intermediate portion between the first outflow port 12 and the second outflow port 13 (the angular interval from both is 90 degrees). A discharge port 14 is provided at an angular interval of 180 degrees from the inlet 11.

  An upper fitting insertion portion 41 is provided at a portion of the valve body 40 where the first outlet 12, the second outlet 13, and the inlet 11 are provided. The upper fitting insertion portion 41 is provided with a stepping motor 50. A bottomed cylindrical first valve body 60 of a rotary type that can be rotated via the rotary shaft 25 is slidably fitted. The first valve body 60 is provided with an opening 62 for allowing the fluid flowing into the valve body 40 from the inlet 11 to selectively flow out from the first outlet 12 and the second outlet 13.

  Further, a second valve body 70 of a rotary type is provided in the portion of the valve body 40 where the discharge port 14 is provided, similarly to the first valve body 60. In this example, the second valve body 70 and the first valve body 60 have a bottomed cylindrical shape having the same diameter and the same length, and the second valve body 70 is a valve main body so that they both face each other. A lower insertion insertion portion 42 provided at a lower portion of 40 is inserted so as to be slidable and rotatable.

  The second valve body 70 is provided with an opening 72 for allowing the fluid flowing into the valve body 40 from the inlet 11 to flow out to the outlet 14.

  In this embodiment, a second valve body operating means including a manual operation handle 80 for rotating the second valve body 70 in the same plane is provided. That is, a lower receiving seat 45 is provided at the lower end of the valve body 40, and a bearing hole 46 is formed in the central portion of the lower receiving seat 45, into which the rotary shaft 75 is slidably fitted. The lower receiving seat 45 is screwed with a flat stopper 48 that allows the rotation of the rotary shaft 75 but prevents its vertical movement. A manual operation handle 80 having a portion protruding in one direction is fixed to the lower portion of the rotating shaft 45.

  Therefore, if the manual operation handle 80 is turned, the rotation is transmitted to the second valve body 70 via the rotation shaft 75, and when the opening 72 of the second valve body 70 is turned to a position facing the discharge port 14. The fluid that has flowed into the valve body 40 from the inflow port 11 flows out to the discharge port 14 through the opening 72.

  In the composite valve 1 of the first embodiment, when the discharge port 14 is closed by the second valve body 30, the fluid flowing into the valve body 10 from the inlet 11 passes through the second valve body 30 portion. However, in the composite valve 2 of the second embodiment, when the discharge port 14 is closed by the second valve body 70, the inside of the valve body 40 is formed from the inflow port 11. The fluid that has flowed into the outlets 12 and 13 does not pass through the second valve body 70 portion.

  The composite valve 2 of the second embodiment configured as described above can also be applied to the hot water supply device 100 in the same manner as the composite valve 1 of the first embodiment. In the hot water supply device or the like, parts cost, piping cost, occupied space, etc. The effect that can be reduced. Further, in the composite valve 2 of the second embodiment, the first valve body 60, the second valve body 70, the rotary shafts 25 and 75, etc. are manufactured in the same or similar shape, so that the manufacturing cost can be reduced. is there.

Next, another manual operation valve (three-way valve) will be briefly described with reference to FIG.
An inflow port 11, an outflow port 12, and an exhaust port 14 are provided in the valve main body 120 of the manually operated valve 110 illustrated in FIG. 5A, and a valve body 130 including a shaft portion 131 and a valve body portion 132 is provided. The valve body 132 is slid in the vertical direction by the manual operation lever 140 using the lever principle, so that the valve seat 132 is provided between the inlet 11 and the outlet 14, the inlet 11, and the outlet. 12 is selectively seated on a valve seat 152 provided between the flow path 12 and the flow path is switched.

  The manual operation lever 140 has a structure similar to that of the above-described first embodiment (manual operation lever 35), and the valve body 130 is always urged by the compression coil spring 135 in the direction in which it is seated on the upper valve seat 151. Has been. That is, when the valve body 132 shown in FIG. 5A is seated on the valve seat 151, if the handle 140a of the manual operation lever 140 is rotated in the direction indicated by the arrow P to stand upright, the valve body 130 is obtained. Is pressed against the elastic force of the coil spring 135, and the valve body 132 is seated on the valve seat 152.

  A manual operation valve 150 shown in FIG. 5B replaces the manual operation lever 140 shown in FIG. 5A, and has an internal thread provided on the valve body 120 to slide the valve body 132 in the vertical direction. A manual operation handle 160 with a male screw portion 161 screwed into the portion 125 and screw-fed is used.

The manually operated valves (three-way valves) 110 and 150 having such a configuration can also be used as a three-way valve for drainage indicated by reference numeral 240 in FIG. Further, these operation valves 110 and 150 can be replaced with a drive portion of the second valve body 30 of the composite valve 1 shown in FIG.
In any case, the sealing material and the like can be reduced as compared with the conventional one, and the cost can be reduced.

  In the above description, the first valve bodies 20 and 60 each switch the flow of hot water to two outlets (the first outlet 12 and the second outlet 13). Of course, the present invention is not limited to this, and it is a matter of course that hot water may be switched to three or more outlets.

  Further, in the description related to FIG. 3, the first valve body 60 and the second valve body 70 are formed to have the same diameter and the same length, but the present invention is not particularly limited to this, respectively. The outer diameter and length of each may be different. When the outer shapes are made different, the inner diameter of the valve body 40 may be made different between the housing portion of the first valve body 60 and the housing portion of the second valve body 70.

1, 2 Composite valve 10 Valve body 11 Inlet 12 Outlet 13 Outlet 14 Outlet 20, 60 First valve body 30, 70 Second valve body 35 Manual operation lever
50 stepping motor (first valve element drive means)
80 Manual operation handle 100 Hot water supply device 210 Heat pump 220 Hot water storage tank 230 Pump

Claims (10)

A valve body provided with an inlet, a plurality of outlets, and an outlet;
A first valve body for selectively flowing out the fluid flowing into the valve body from the inlet through the plurality of outlets;
First valve body driving means for opening and closing the first valve body;
A second valve body for discharging fluid flowing into the valve body from the inlet through the outlet;
A second valve element operating means for opening and closing the second valve element ;
A rotary valve is used as the first valve body, and a motor is used as the first valve body driving means .   2. The composite valve according to claim 1, wherein the second valve body is a lift type that is linearly advanced and retracted in a direction contacting and separating from the discharge port.   The second valve element operating means includes a manual operation lever using the principle of lever that is rotated along the contact / separation direction so as to advance / retreat the second valve element in the direction of contact / separation with the discharge port. The composite valve according to claim 2, wherein the composite valve is configured.   The second valve element operating means includes a threaded manual operation handle that is screwed into the valve body and screwed to advance and retract the second valve element in the direction of moving toward and away from the discharge port. The composite valve according to claim 2, wherein the composite valve is provided. When the discharge port is closed by the second valve body, the fluid flowing into the valve body from the inflow port is directed to the outflow port through the second valve body portion. The composite valve according to any one of claims 2 to 4.   The composite valve according to claim 1, wherein a rotary type that is inserted into the valve main body so as to be slidable and rotatable is used as the second valve body.   The composite valve according to claim 6, wherein the second valve body operating means includes a manual operation handle for rotating the second valve body in the same plane.   When the discharge port is closed by the second valve body, the fluid flowing into the valve body from the inflow port is directed to the outflow port without passing through the second valve body portion. The composite valve according to claim 6 or 7, characterized in that As the first valve body, before Symbol first valve body and second valve body is a bottomed cylindrical shape, so that they both are facing each other at both ends of the valve body which is vertically long cylindrical shape The composite valve according to any one of claims 6 to 8, wherein the composite valve is inserted into the provided insertion portion so as to be slidable and rotatable. A heat pump, a hot water storage tank that stores hot water heated by the heat pump, and a pump that circulates hot water between the heat pump and the hot water storage tank, and a flow path that sends the hot water heated by the heat pump to the hot water storage tank. The composite valve according to any one of 1 to 9 is provided, a plurality of outlets of the composite valve are connected to a supply port of the hot water storage tank, and a discharge port of the composite valve is connected to an external drain port. A hot water supply apparatus characterized by

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