JPS6352269B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a quantitative supply valve, and in particular, the present invention relates to a fixed quantity supply valve, and in particular, a function for supplying a predetermined amount of liquid, and a function for supplying two kinds of liquid such as water and hot water.
The present invention provides a quantitative supply valve that has the function of discharging different types of liquids individually or in a mixed manner, and is suitable for solar water heaters, boiler devices, and other fluid devices.

Generally, in solar water heaters (especially those with a capacity of around 200 liters), heat exchange is actively carried out during the summer when the sun's rays are strong, so the temperature of the water in the hot water storage tank becomes significantly high. For this reason, as in the conventional example shown in FIG. The temperature of the hot water used is adjusted by adjusting the opening degrees of the hot water supply valve 5 and the water supply valve 6 provided in the water supply valve. Water is supplied to the solar water heater 1 via a supply pipe 7 that communicates with a water source 3. That is, a ball tap 8 for detecting the amount of liquid in the hot water tank 1a is provided at the end of the supply pipe 7 on the water heater 1 side, and when the supply valve 9 in the supply pipe 7 is opened. When the amount of hot water in the hot water storage tank 1a decreases to a predetermined amount or less due to the use of hot water,
The ball tap 8 operates to open the supply pipe 7 and supply clean water from the clean water source 3 into the hot water tank 1a. When the amount of liquid in the hot water storage tank 1a reaches a predetermined amount, the ball tap 8 is activated by the amount of liquid to close the supply pipe 7 and cut off the water supply from the water source 3. The low temperature water filled in the hot water storage tank 1a is introduced to the heat collecting plate 1b side, and as it flows through the heat collecting plate 1b, it is warmed by the heat of the sun, and this warmed high temperature water is transferred to the hot water storage tank 1a. By repeating this circulating action, the temperature of the liquid in the hot water storage tank 1a is gradually increased.

However, due to its structure, the ball tap 8 often has malfunctions such as malfunction or failure to shut off the supply pipe 7, and since the water supply from the water source 3 is not completely shut off, overflow occurs and water is wasted. In addition, there was a problem in that the temperature of the water stored in the hot water tank 1a did not reach a high temperature because thermal energy was taken away by the outflowing clean water. Moreover, since the solar salt water system 1 is usually installed at a high place such as on the roof, if the ball tap 8 breaks down, it is necessary to climb up to the roof etc. to repair it. Not only is there a danger associated with on-site repair work, but there are also problems in that repairs are time-consuming and uneconomical.

Therefore, the inventors decided to eliminate the ball tap and install a device in place of the ball tap that detects a certain amount of flow and supplies it into the hot water storage tank in an easily accessible location. In addition to solving the above problems, the device, the water supply valve, and the hot water supply valve are configured into one valve body, and the function of a hot water and water mixing valve is also created, improving ease of use and convenience, and piping structure. This invention was made with the aim of simplifying the process.

That is, the object of these inventions is to provide a mechanism for supplying a certain amount of fluid to a predetermined device, which can be set appropriately, a first valve such as a water supply valve, and a second valve such as a hot water supply valve, An object of the present invention is to provide a quantitative supply valve having a function of mixing and discharging two types of fluid regulated by each valve by operating the valve.

These inventions are applicable not only to devices that use water and hot water appropriately or in combination, such as solar heat collectors and boiler devices;
It can be used in a device that flows two types of fluids individually or in a mixture. In the embodiment shown in FIGS. 2 to 5, the present invention provides a valve body 10 with an inlet 11 and an outlet 1 extending through the valve body 10 and openings at both ends thereof.
2, a first flow path 13 having an inlet and an outlet the same as the inlet 11 and the outlet 12, and a valve body 10.
A second flow path 15 having a connection port 14 that opens to the outside.
A first valve 16 and a second valve 17 are provided in the first flow path 13 and the second flow path 15 to open and close them individually, respectively,
On the downstream side of the part 18 where the first flow path 13 and the second flow path 15 diverge, and furthermore, the second valve 1
7 and on the upstream side of the connection port 14, a quantitative control device 19 that detects the flow rate of the second flow path 15 and closes the second flow path 15 when the flow rate reaches a predetermined amount.
The specified invention is a quantitative supply valve characterized in that the valve body 10 is provided with an inlet 11 which penetrates the valve body 10 and has openings at both ends thereof.
and an outlet 12, and the first flow path 13 has a connection port 14 having the same inlet and outlet as the inlet 11 and the outlet 12, and opening to the outside of the valve body 10. A first valve 16 and a second valve 17 are respectively provided in the first flow path 13 and the second flow path 15 to open and close them individually. The flow rate of the second flow path 15 is detected downstream of the portion 18 where the first flow path 13 and the second flow path 15 diverge, and further upstream of the second valve 17 and the connection port 14. A quantitative control device 19 is provided to close the second flow path 15 when the flow rate reaches a predetermined amount, and a reverse flow control device 19 is provided on the upstream side of the branch portion 18 to prevent backflow of fluid from the downstream side. A quantitative supply valve characterized by being provided with a stop valve 42 is a combined invention.

Examples of these inventions will be described below with reference to the drawings.

Figures 2 and 3 show an embodiment of these inventions, in which a certain amount of water is supplied to a solar water heater (not shown), and water and hot water are supplied individually or in a mixed manner. It is a figure of the water supply and hot water supply valve which discharges. First, to explain the configuration, 10
is a valve body, and this valve body 10 is provided with a hole passing through the valve body 10, as shown in cross section in FIG.
The first flow path 13 forms a water supply channel, and the openings at both ends of the first flow path 13 form an inlet 11 and an outlet 12. The valve body 10 has a second flow having an inlet 11 and an outlet 12 which are the same as the inlet 11 and the outlet 12, and which has a connection port 14 that is separate from the inlet 11 and the outlet 12 and opens outside the valve body 10. A hot water supply passage 15 is provided alongside the first flow passage 13 .

The first flow path 13 and the second flow path 15
A water supply valve, which is a first valve 16, and a hot water supply valve, which is a second valve 17, which individually open and close these flow paths 13 and 15 are respectively provided. The first valve 16 and the second valve 17 have the same shape and structure, and each flow path 1
Valve bodies 21a, 21 that can close 3, 15
b, and a holder 22 that holds each of the valve bodies 21a and 21b and that moves forward and backward while being screwed into the valve body 10.
a, 22b, and knobs 23a, 23b which are fixed to the respective holders 22a, 22b and rotate together.

The valve bodies 21a and 21b are connected to each flow path 13 and 15.
Gaskets 26a and 26b made of an elastic body such as rubber that come into contact with the seats 24 and 25, and each gasket 26
A valve rod 27 that is screwed into and supports a and 26b.
a, 27b, and the shaft portions of the valve rods 27a, 27b fit into holes formed in the end faces of the holders 22a, 22b, whereby the respective valve bodies 21a, 2
1b is held by holders 22a and 22b so as to be able to move forward and backward. Note that the seats 24 and 25 are connected to the valve body 21.
It protrudes in an annular shape on the sides a and 21b, respectively, thereby connecting the seats 24 and 25 and the gaskets 26a and 21b.
26b is ensured.

The holders 22a and 22b have a round bar shape with a large diameter part in the middle in the axial direction, and male threads are provided on the outer periphery of this large diameter part and on the end opposite to the hole side. By screwing the male thread provided in the large diameter portion into the female thread of the hole provided in the valve body 10, the valve bodies 21a, 21b held by the holders 22a, 22b are connected to each flow path 13, 1.
Place it on the 5th seat 24 and 25. And each valve body 2
1a, 21b are springs 28a, 2 compressed between the end faces of the flanges of the valve bodies 21a, 21b and the end faces of the large diameter portions of the holders 22a, 22b.
8b toward the seats 24 and 25, so that the first flow path 13 and the second flow path 15 are normally
Both are closed.

Further, the female threads of the holes provided in the knobs 23a, 23b are screwed into the male threads of the small diameter portions of the holders 22a, 22b, and the knobs 23a, 22b are double tightened and fixed with bolts 29. The rotation of holder 23b causes holders 22a and 22b to move forward and backward while rotating. The amount of protrusion of the holders 22a, 22b regulates the amount of forward and backward movement of the valve bodies 21a, 21b, and therefore, by changing the amount of protrusion, the flow rate of fluid passing therethrough can be adjusted. Third
In the figure, 30 is a seal ring, and 31 is a seal cap that supports the seal ring 30.

On the downstream side of the part 18 where the first flow path 13 and the second flow path 15 diverge,
Upstream of the valve 17 and the connection port 14, there is a quantitative control device 19 that detects the flow rate of the second flow path 15 and closes the second flow path 15 when the flow rate reaches a predetermined amount. will be established. This quantitative control device 1
Reference numeral 9 denotes an impeller 33 that rotates due to the dynamic pressure of the fluid and detects the flow rate from its rotation speed, a cam body 34 that is rotated by the rotation of this impeller 33, and an upstream side of this cam body 34, that is, an inlet. Located on the 11 side,
The valve body 35 also includes a valve body 35 that moves forward and backward in sliding contact with the cam body 34, thereby opening and closing the second flow path 15. That is, the impeller 33 is disposed within the second flow path 15, and the shaft 33a of the impeller 33
The impeller 33 extends outside the second flow path 15 and is connected to the shaft 34a of the cam body 34, which is also disposed inside the second flow path 15, via a gear reduction device (not shown).
They are connected via a one-way clutch (not shown) that transmits only the rotational force from the side. Also, the cam body 3
The shaft 34a of No. 4 is connected to a preset dial 36 shown in FIG. 2, and by rotating the preset dial 36, the cam body 34 is rotated. 3 is a housing fixed to the valve body 10, and the impeller 33 is rotated by the dynamic pressure of the fluid accelerated when passing through an orifice 39a provided in the housing 39.

The valve body 35 includes a valve head 35a facing the cam surface of the cam body 34, and a valve shaft 35b to which the valve head 35a is screwed and fixed to an end face on the flange side provided at one end.
and is attached to the valve head 35a side of this valve shaft 35b,
It also includes a gasket 35c that can close the second flow path 15. And the valve shaft 35b
is supported by a valve cap 37 so as to be movable back and forth, and the valve cap 37 passes through the valve body 10 and communicates with a portion 18 where the first flow path 13 and the second flow path 15 diverge. Screw into the hole. Furthermore, a spring 38 is provided between the flange end surface of the valve shaft 35b and the inner end surface of the valve cap 37.
is compressed, and the valve body 35 is always urged in the direction of closing the second flow path 15 by the spring 38.

A strainer 4 is provided on the upstream side of the branch portion 18.
0 is installed, and with this strainer 40,
It captures dust and the like contained in the fluid supplied from the inlet 11 side. 41 is a cap that supports the strainer 40. Further, a check valve 42 is provided on the upstream side of the strainer 40 to prevent backflow of fluid from the downstream side. The check valve 42 is connected to the inlet 11
The valve body 43 is composed of a valve body 43 capable of closing a flow path from the valve body 43, a holder 44 holding the valve body 43, and a sleeve 45 to which the holder 44 is screwed and fixed to the valve body 10. The valve body 43 consists of a packing 46 and a valve stem 47 that is screwed into and supports the packing 46, and the shaft of the valve stem 47 is fitted into a hole formed in the end surface of the holder 44. As a result, the valve body 43 is held in the holder 44 so as to be able to move forward and backward.

The holder 44 has a round bar shape with a large diameter part in the middle in the axial direction, and a male thread is provided on the outer periphery of this large diameter part, and the male thread is connected to the sleeve 45.
The valve body 43 is screwed into a female thread provided inside the valve body 43
The opposite end passes through a hole in the sleeve 45 and projects to the outside of the sleeve 45. A slot 44a is provided on the protruding end of the holder 44, and by engaging the tip of a screwdriver (not shown) or the like with the slot 44a and rotating the driver, the holder 44 moves forward and backward. do. A male thread is provided on the outer periphery of the sleeve 45 on the valve body 43 side, and by screwing and fixing this male thread into a female thread of a hole provided in the valve body 10, the valve body 43 held by the holder 44 can be held by the holder 44. It faces the communication hole 48 provided directly below the inlet 11. And the valve body 43
is biased toward the communication hole 48 by a spring 49 compressed between the valve body 43 and the holder 44, so that the inlet 11 and the strainer 4 are normally connected.
0 is closed. The amount of forward and backward movement of the valve body 43 is regulated by the amount of protrusion of the holder 44, and therefore, by changing the amount of protrusion, the flow rate of fluid passing therethrough can be adjusted. 5
0 is an O-ring.

In addition, in FIG. 2, 51 is the valve body 1.
0 is a conduit connected to the outlet 12 of the conduit 5.
1, a discharge pipe 52 is rotatably connected to the tip. 53 is O that allows the rotational movement of the discharge pipe 52.
- ring, and 54 is the O-ring 5.
This is a cap nut that supports 3.

Next, the action will be explained.

First, by turning the preset dial 36, the flow rate to be supplied to the second flow path 15 is set in advance. At this time, when the preset dial 36 is turned, the cam body 34 connected to the preset dial 36 rotates in the clockwise direction shown by the arrow S, and the cam surface formed on the outer periphery of the cam body 34 aligns with the valve head of the valve body 35. 35a and pushes up the valve body 35 against the biasing force of the spring 38, separating the gasket 35c from the seat surface and opening the branch portion 18 of the second flow path 15. At this time, the first valve 16 and the second valve 17 close both the first flow path 13 and the second flow path 15, and the check valve 42
The valve body 43 is pushed by the biasing force of the spring 49.
closes the communication hole 48.

Next, a high-pressure working fluid is introduced into the common inlet 11 of the first passage 13 and second passage 15 formed in the valve body 10, and the pressure of this working fluid increases the set pressure of the spring 49. , the working fluid pushes up the valve body 43 against the biasing force of the spring 49, and the seal 4
6 is separated from the seat surface, and flows into the interior through the gap between the communication hole 48 and the packing 46. The working fluid that has passed through the check valve 42 is filtered when passing through the strainer 40 and is separated into the first flow path 13 and the second flow path 13.
It flows into the part 18 side where the flow path 15 branches.
At this time, when the pressure of the fluid on the downstream side of the check valve 42 becomes higher than the pressure on the upstream side, the fluid pressure on the downstream side acts in addition to the biasing force of the spring 49, so that the valve body 43 This prevents fluid from flowing backward from the downstream side.

Since the first valve 16 is in the closed state, the working fluid that has reached the branch portion 18 flows only into the second flow path 15 side. The working fluid, which is throttled and accelerated by the orifice 39a provided in the housing 39, flows downstream while rotating the impeller 33. Since the shaft 33a of the impeller 33 is connected to the shaft 34a of the cam body 34 via a gear reduction device (not shown), the cam body 34 rotates counterclockwise as the rotation speed of the impeller 33 increases. As a result, the valve body 35, which slides into sliding contact with the cam surface of the cam body 34, is gradually pushed back by the biasing force of the spring 38. Then, when the impeller 33 rotates at a predetermined number of revolutions and passes an amount of working fluid proportional to this number of revolutions, the cam body 34 interlocked with the impeller 33 returns to its initial state, thereby causing the valve body 35 is seated on the seat and the second
The branch portion 18 of the flow path 15 is closed.

Since the second valve 17 is closed, all of the predetermined amount of liquid that has passed through the impeller 33 is transferred to the connection port 1.
It flows into the 4th side. The connection port 14 is connected to various devices such as a hot water tank of a solar water heater, a water storage tank of a boiler device, etc., as in an embodiment described later. Here, when the second valve 17 is opened, since the flow path leading to the inlet 11 side is closed, the device connected to the connection port 14 and the outlet 12 side are communicated, and the hot water is stored in the storage tank or the like in advance. The stored fluid flows into the valve body 21b.
It flows into the outlet 12 side through the gap formed between the and the seat 25 and is discharged to the outside through the conduit 51 and the discharge pipe 52.

On the other hand, when the first valve 16 is further opened while the second valve 17 remains open, the fluid from the hot water storage tank etc. and the fluid from the inlet 11 side are mixed, and this mixed fluid is transferred to the conduit 51 and the discharge pipe. 52 and is discharged to the outside. Further, if the second valve 17 is closed while the first valve 16 is kept open, only the fluid from the inlet 11 side is similarly discharged to the outside.

FIG. 4 shows specific examples of how these inventions are used. This embodiment is a metering valve for both water supply and hot water supply for a solar water heater. That is, the quantitative control device 19 and the hot water supply valve 17 which is the second valve.
The other end of a communication pipe 55 whose one end is connected to the hot water tank 1a of the solar water heater 1 is connected between the two, the inlet 11 side is communicated with the clean water source 3, and the outlet 12 side is open.
With this configuration, a predetermined amount of clean water is supplied into the hot water tank 1a by the operation of the quantitative control device 19. Then, when the hot water supply valve 17 is opened, the hot water tank 1
The warmed hot water in a is discharged from the outlet 12, and while the hot water supply valve 17 is closed, the water supply valve 1 is
When 6 is opened, only clean water is discharged from the outlet 12,
Further, when the water supply valve 16 and the hot water supply valve 17 are opened at the same time, hot water appropriately mixed according to the degree of opening of these valves is discharged. These valves 16, 17
The quantitative control device 19 is built into a single valve body 10, and since this device is installed in a place where people can reach, the amount of water supplied to the hot water tank 1a can be easily adjusted. In the unlikely event that a failure occurs, it can be dealt with quickly.

FIG. 5 shows another specific usage example of these inventions.

In this embodiment, two three-way pots 56 and 57 that operate in conjunction with each other are provided in the communication pipe 55 and upstream of the quantitative control device 19 shown in FIG. 4, and supply water to the hot water storage tank 1a. It is possible to measure not only the amount of water being poured, but also the amount of hot water discharged from the hot water storage tank 1a. That is, when using the hot water stored in the hot water storage tank 1a, the three-way pots 56, 57 are switched to the opposite side from the one at the time of supply, and the hot water is guided to the upstream side of the quantitative supply device 19. The amount of hot water used is measured by passing the hot water through the quantitative supply device 19 again. Thereby, hot water can be taken out from the hot water tank 1a in an appropriate amount according to the purpose of use, and wasteful use of hot water can be prevented. Moreover, since the amount of hot water remaining in the hot water tank 1a can be determined from the amount of hot water passing through the quantitative supply device 19, the inconvenience of running out of hot water midway through the next use and leaving the hot water tank 1a empty is avoided. It can be avoided. In addition, when replenishing water into the hot water tank 1a, the appropriate amount of water can be supplied, so
Not only is there no need to waste clean water due to overflow, but the thermal energy of the heated hot water is not lost to overflow clean water, and a drop in hot water temperature due to this can be prevented.

It goes without saying that the working fluid is not limited to water as described above, but can also be used, for example, when water and a chemical solution are mixed together, or when different chemical solutions are mixed together.

As described above, these inventions include a mechanism for supplying a fixed amount of fluid to a predetermined device, which can be set as appropriate, and one first valve such as a water supply valve and one second valve such as a hot water supply valve. By operating these valves, etc., two types of fluids whose distribution is regulated by each valve can be discharged individually or in a mixed manner. Therefore, the device, which was previously composed of two or more separate devices, can now be made into one single device, which simplifies the piping structure of this type of device and reduces maintenance, inspection, etc. It can be done easily. Furthermore, when this device is used in a solar water heating system, for example, it not only allows the amount of water supplied to the hot water tank to be adjusted easily and appropriately, but also eliminates the use of parts that often break down, such as ball taps. Moreover, since this device is installed in a place where tap water is used, even if a malfunction should occur, it can be disposed of quickly and easily.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram schematically showing a water supply valve of a conventional solar water heater, Fig. 2 is a partially cutaway front view showing an embodiment of the present invention, and Fig. 3 is the same as that shown in Fig. 2.
A line sectional view, FIG. 4 is a schematic explanatory view showing a specific example of use of the present invention, and FIG. 5 is a schematic explanatory view showing another example of use. In the figure, 1 is a solar water heater, 1a is a hot water tank, 10 is a valve body, 11 is an inlet, 12 is an outlet, 13 is a first flow path, 14 is a connection port, 15 is a second flow path,
16 is a first valve, 17 is a second valve, 18
19 is a branching part, 19 is a quantitative control device, 21a, 21
b is a valve body, 22a, 22b is a holder, 23a,
23b is a knob, 28a, 28b are springs, 3
3 is an impeller, 33a is a shaft, 34 is a cam body, 34a
is the shaft, 35 is the valve body, 36 is the preset dial,
38 is a spring, 39 is a housing, 39a is an orifice, 40 is a strainer, 42 is a check valve,
43 is a valve body, 44 is a holder, 45 is a sleeve,
48 is a communicating hole, and 49 is a spring.

Claims (1)

[Scope of Claims] 1. A first flow path is provided in the valve body, passing through the valve body and having openings at both ends as an inlet and an outlet, and the first flow path has an inlet and an outlet connected to the inlet and the outlet. A first valve that is provided with a second flow path having a connection port that is the same as the outlet and that opens to the outside of the valve body, and that opens and closes the first flow path and the second flow path individually. and a second valve are respectively provided, and the first flow path and the second valve are respectively provided.
The flow rate of the second flow path is detected on the downstream side of the part where the flow path branches, and furthermore, on the upstream side of the second valve and the connection port, and when the flow rate reaches a predetermined amount. , A quantitative supply valve characterized in that it is provided with a quantitative control device that closes the second flow path. 2. The quantitative control device includes an impeller that is rotated by the dynamic pressure of the fluid and detects the flow rate from the number of rotations thereof, a cam body that is rotated by the rotation of the impeller, and a cam body that moves forward and backward in sliding contact with the cam body. and this causes the second
2. The metered supply valve according to claim 1, further comprising a valve body for opening and closing a flow path. 3. A first flow path is provided in the valve body, passing through the valve body and having openings at both ends as an inlet and an outlet, and the first flow path has an inlet and an outlet that are the same as the inlet and the outlet, and , a second flow path having a connection port opening to the outside of the valve body is provided, and a first valve and a second valve are provided in the first flow path and the second flow path to open and close them individually. A first flow path and a second flow path are provided respectively.
The flow rate of the second flow path is detected on the downstream side of the part where the flow path branches, and furthermore, on the upstream side of the second valve and the connection port, and when the flow rate reaches a predetermined amount. A quantitative supply valve, characterized in that a quantitative control device for closing the second flow path is provided, and a check valve for preventing backflow of fluid from the downstream side is further provided on the upstream side of the branch portion. 4. The quantitative control device includes an impeller that is rotated by the dynamic pressure of the fluid and detects the flow rate from the number of revolutions thereof, a cam body that is rotated by the rotation of the impeller, and a cam body that moves forward and backward in sliding contact with the cam body. 4. The quantitative supply valve according to claim 3, further comprising a valve body which opens and closes the second flow path.