JPS5918591B2 - Chuck valve with detection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that the valve that opens and closes the water hole installed in the main body of the Chutsuki valve is made of a magnetic material, and the change in position due to the movement of the valve is controlled by the magnetic flux generated in the coil contained therein. By installing a detection device that can detect and manage the operation of the Chutsuki valve by extracting it as a change in density and using this change in value as a detection function, it is possible to continuously and automatically manage the opening and closing of the valve. This is related to the Chatsuki valve.

Up until now, various inventions and ideas have been made regarding the structural improvements regarding the Chatsuki valve.
No. 12003 (Japanese Unexamined Patent Publication No. 53-59919) proposed an improvement to prevent swirling of the liquid flow in the pipe.

However, in this invention, although it is possible to prevent the propagation of the eddy current of the liquid flow, the liquid flow rate cannot be adjusted automatically.The flow rate can be adjusted by manually opening and closing the valve while separately measuring the flow rate. Measurement was the only option.

As an attempt to automate the opening/closing adjustment of this valve, for example, although it is not related to the Chatsuki valve,
-122218 (Japanese Unexamined Patent Publication No. 52-50028),
A mechanism has been proposed that feeds back fluid pressure changes to the opening and closing of valves, but this method converts pressure fluctuations into magnetic physical quantities, which can be easily extracted as continuously detected measured quantities, and which can also be transmitted to remote locations, for example by electricity. Although it is admitted that it is an excellent invention that has the feature of being easy to transmit because it can be easily converted into a physical quantity, its structure is quite complex, so there are problems such as clogging of the hydraulic altar, insufficient vortex of the cylinder, etc. If this occurs, it is considered to have drawbacks such as directly leading to a decrease in detection accuracy.

Another example is Utility Application No. 47-82366.
No. 9-40024) discloses a method for opening and closing a diaphragm valve in a diaphragm type valve by connecting a pole plate provided at the opposite end of the valve to a housing facing the valve through the shaft and diaphragm. A device has been proposed in which the degree of opening and closing of the valve is detected by the change in capacitance between the two electrode plates caused by the change in the distance between the two electrode plates, but this is also complicated. Due to the structure, for example, it is difficult in practice to maintain the parallelism of the electrode plates, and if the electrode plates become bent or a foreign object intervenes between the electrode plates, an abnormality may occur in the detected amount. This is considered to have the following drawbacks.

Furthermore, Utility Application No. 47-82367 (Utility Application No. 49-4002)
No. 5), in a diaphragm type valve, the opening and closing of the valve is performed by moving a ferromagnetic movable iron core attached to the upper end of the shaft in the axial direction through a shaft directly connected to the valve. A device has been proposed to detect the quantity by converting it into a magnetic physical quantity using a differential transformer, but this idea was not developed until 1973.
Although it is superior to the invention of No. 7-82366 in that the accuracy of the detected amount can be maintained, the detection device is larger and it is difficult to adopt it depending on the location of the valve.
Unless high accuracy is ensured in the installation between the valve and the cylinder, and the installation between the cylinder and the movable iron core, it is considered that there will be a drawback that a detection error will occur.

In contrast, the present invention directly magnetically detects the movement of the valve itself, so it has higher accuracy than the above-mentioned conventional inventions.
Moreover, the present invention is characterized in that the degree of opening and closing of the valve can be detected without using a particularly complicated detection device structure.

To explain the present invention with reference to the drawings, in FIG. 1, reference numeral 1 indicates a valve main body of a Chutsuki valve, and a water passage hole 2 is formed upwardly from the bottom of the valve main body 1. A female thread 3 is cut on the lower inner periphery, and a male thread cut on the outer periphery of the valve seat pipe 4 is screwed into the female thread 3, so that the valve seat pipe 4 is deposited above the lower water passage hole 2.

Place the outer circumferential edge of the backing 5 on the upper edge of the valve seat pipe 4, fit the recess provided on the lower surface of the valve 6 made of magnetic material such as iron or iron alloy above the backing 5, and The upper surface of the clamping plate 7 is placed on the clamping plate 7, and guide rods 51 are provided at several locations around the outer circumference of the clamping plate 7. An insertion hole 8 is bored in the center of the clamping plate 7 and the center of the backing 5, and the insertion hole 8 is inserted through the A label 9 that matches the hole 8 is engraved on the bottom of the valve 6, and the upper part of the threaded rod 10 is inserted from the lower part of the insertion hole 8, and the male thread of the threaded rod 1o is
The banking 5 is screwed onto the female thread of the valve 6, and the nut 11 is screwed onto the lower part of the threaded rod 10.
and install.

A bright part 12 is protruded from the center of the upper surface of the valve 6, and a male thread carved on the outer periphery of the lower end of the valve pipe 13 is screwed into the female thread of the bright part 12 to attach the valve pipe 13 to the valve 6. A suppressing strip 14 is inserted into the inside of the valve pipe 13, and the upper part of the valve pipe 13 is fitted so as to rise and fall into the lower opening of the water bottle 15, and the upper part of the suppressing strip 14 is attached to the ceiling of the water bottle 15. At the same time, the lower end of the suppressing strip 14 is pressed against the upper surface of the valve 6 to elastically support the valve 6 downward in a downwardly suppressing tendency to maintain the valve closed state.

A water passage hole 16 is bored above the water bottle 15, and the water bottle 15 is integrally formed on the lower surface of the center of the mounting plate 17.
A male thread 18 is formed on the outer periphery of the valve body 1, and the male thread 18 is screwed into a female thread formed on the upper inner periphery of the water passage hole 2 formed above the valve main body 1 to attach it to the valve main body 1. Board 17
Install.

A male thread 19 is carved on the lower outer periphery of the water bottle 15, and the male thread 1
9, screw the female screw carved into the inner periphery of the upper small part of the shock-reducing wing 20 whose lower part has been enlarged into a 13JIJK shape, and screw the water bottle 15.
Attach the shock-reducing wing 20 in a removable manner.

Furthermore, as shown in FIG. 1 and partially enlarged FIG. The detection device 22 is attached to the valve main body 1 by screwing a male screw engraved on the outer periphery of the valve 23 so that the forward and backward movement can be adjusted. and set it up.

The configuration of the detection device 22 is as shown in FIG.
As shown in the figure, the winding start end and winding end of the coil 25 are connected to a temperature compensated oscillation circuit 26, and the oscillation circuit 26 is connected to the amplifier circuit 2.
7, and the amplifier circuit 27 is connected to the relay two-stage amplifier device 28.
It is connected to.

100v or 200v power supply circuit 29.30 to transformer 3
Connected to both ends of the primary winding 330 wound around the iron core 32 of No. 1,
A secondary wire ring 34 wound around the iron core 32 is connected to a circuit at both ends of the transformer 310.

A circuit 35 derived from the transformer 31 is connected to the oscillation circuit 26, a circuit 36 branched from the circuit 35 is connected to the amplifier circuit 27, and a circuit 37 branched from the circuit 35 is further connected to the oscillation circuit 26.
Connect to the relay two-stage amplifier circuit 28.

Opposed to the relay two-stage amplifier circuit 28, an output circuit opened and closed by the electromagnetic switch 3B, that is, a display circuit 39, 40, 41 for displaying the detected value is provided to form the amplifier A,
The amplifying device A is installed in a casing 53 that can be divided.

Referring again to FIG. 1, reference numeral 42 denotes a partition wall extending inward from the right side wall of the valve main body 1, forming a water passage gap 43 between the partition wall 42 and the inner periphery of the valve main body 1.
A water passage hole 44 is bored in the water passage hole 44, a seat pipe 45 is tightly fitted and attached to the water passage hole 44, a valve 46 is provided opposite to the seat pipe 45 to open and close it, and a valve 46 is provided behind the valve 46. A rod 47 is provided, a male thread 48 is carved on the outer periphery of the enlarged part to the left of the center of the valve rod 47, the male thread 48 is screwed into the female thread of the support tube 49, and the male thread 48 is carved on the left side wall of the valve main body 1. By screwing the male thread carved on the outer circumference of the left end of the support tube 49 into the female screw, the support tube 49 is attached to the valve main body 1, a handle 50 is attached to the right end of the valve rod 47, and the handle 50 is rotated. The opening and closing state of the valve seat pipe 45 is adjusted by moving the valve 46 forward and backward.

To give an example of how this valve works in practical use, when the water inside the vibrator body 1 is pumped to a rooftop tank installed on the roof of a high-rise building, for example, when the rooftop tank has pumped a predetermined amount of water, When the water pump automatically stops pumping water, the water overflowing from the rooftop tank causes the water in the pumping pipe connecting the valve main body 1 and the rooftop tank to fall, but the falling water is used to cushion the impact. The expansion of the blade 20 hits the upper surface of the JI hole-shaped part, and the impact force is alleviated, and at the same time, the valve 6 gradually descends due to the elastic force of the pressing strip 14, and the valve 6 closes the valve seat pipe 4. Until the valve main body 1 is completely closed, water will be discharged from the gap between the valve 6 and the upper surface of the valve seat pipe 4.
The water returns to the water tank via a lift pipe connected to the lower flange of the tank.

However, after the valve 6 reliably closes the valve seat pipe 4,
The water that could not be returned to the water tank returns to the water pumping pipe connected below the valve main body 1 through the gap between the valve seat pipe 45 and the valve 46 as described above.

The open state of the valve 46 is adjusted using the handle 50.

The guide rod 51 has the role of preventing the valve 6 from swinging and correctly guiding the valve 6 to move up and down.

Reference numeral 52 in the figure is a lead wire, which is led to a monitoring station, and a display device is connected to the tip of the lead wire.

53 is a case, and A is an electromagnetic device.

Since the present invention is configured as described above, to explain its overall operation, the transformer 31 is connected during pumping work.
Both sides of the primary wire ring 33 which is wound around the iron core 32 of 10
It is connected to a 0v or 200v power supply, and both ends of a pumping pipe (not shown) are connected to a rooftop tank installed on the roof of a high-rise building and the lower flange of the valve main body 1. A lifting pipe (not shown) is attached to the lower flange of 1 and the lifting pump (not shown), and a pipe (not shown) connected to the lifting pump is connected to the lifting pipe in the water storage tank. When the pump is inserted into water and is automatically operated by another electromagnetic device, water is pumped from the water tank through the pump pipe and below the Chatsuki valve, that is, below the valve main body 19 and the water passage hole 2. Send me valve 6
The opening valve is opened against the elastic force of the pressing repellent strip 14, and the water is pumped up to the rooftop tank through the pumping pipe.

In this case, the valve 6 is separated from the tip cylindrical portion 23 of the sensing device.

That is, since the valve 6 is separated from the electromagnet 24 in the cylindrical part 23,
The magnetic flux density through the coil 25 changes.

This change in the magnetic flux density of the coil 25 causes the oscillation circuit 2
The oscillation wave from 6 becomes high, and this is amplified by the amplifier circuit 27, and further amplified by the relay two-stage amplifier circuit 28, and the terminal of the display circuit 40 is closed to the electromagnetic switch 38, and the display circuit 39 is amplified.
．． A blue indicator light connected to the valve 40 is lit to send a valve opening signal for the valve 6 to the monitoring station, and this is detected.

Additionally, when the rooftop tank is full of pumped water as described above, the automatic switch installed in the rooftop tank is opened to automatically open the water pump circuit.
When the lift pump is stopped, the water in the lift pipe connected to the rooftop tank and the flange provided above the valve main body 1 will drop rapidly, but the impact mitigation blades 2
The impact force is diffused outward at the prime part of the upper surface of 0, the impact force is alleviated, and it no longer collides with the valve 6, so the valve 6 is pressed downward by the elastic force of the pressing rod 14, and the valve 6 is 6 is valve seat pipe 4
is gradually closed, and the valve 6 reaches a position relative to the electromagnet 24 within the cylindrical portion 23 of the detection device 22.

In this case, the magnetic flux of the coil 25 is attracted by the electromagnet 24,
The amount passing through the coil 25 is relatively large.

As a result, the oscillation becomes weaker, and this weakened oscillation wave is oscillated in the oscillation circuit, then amplified by the amplifier circuit, and further amplified by the relay two-stage amplifier 28, but its strength depends on the opening and closing. Before the switch 38 can be kept closed, the switch 38 is released, and the terminal of the display circuit 41 is closed by the switch 38, and the red indicator light connected to the display circuit 39 and 41 is turned on. This indicates the valve closed state.

As described above, in the present invention, the valve 6 for opening and closing the water passage hole 2 bored in the pulp main body 1 is made of a magnetic material such as iron or iron alloy, and the amount of advance and retreat is adjusted relative to the throttle valve 6. An electromagnet 24 housed in the cylindrical part 23 of the detection device 22 and a coil 25 wound around the electromagnet 24 are arranged opposite to a magnetic valve inside the pulp main body 1. , when pumping water to the rooftop tank, open the valve 6 when pumping water, and open the throttle valve 6 and electromagnet 2.
4. The magnetic flux density passing through the coil 25 is changed in direct relation to the distance from the coil 25, and this change is applied to the oscillation circuit, the amplifier circuit, and the relay/two-stage amplifier to open the valve and open the valve. The valve status is detected and displayed with a blue or red light, and the valve open or closed status is detected at a monitoring station outside the pulp main body, so the display part can be monitored. Remote control is also possible when leading the valve to a location, and the open and closed status of the valve can be checked at the monitoring station, which is extremely convenient. It can be immediately confirmed that the cause is a malfunction in the water pump, the Chatsuki valve, or other water pumping equipment.
It has the advantage of being able to take immediate countermeasures, and the shock mitigation device for pumped water can be managed rationally, which makes it possible to take countermeasures quickly.

In addition, since the detection device can adjust its insertion depth arbitrarily through its screw-in part, by turning it to the right or left to adjust the amount of advance and retreat of the detection device, the movement state of the valve can be further adjusted. It also has the advantage of accurate detection.

[Brief explanation of the drawing]

The attached drawings show embodiments of the present invention, and FIG. 1 is a partially enlarged sectional view of the present invention with a detection device shown partially cut away, and FIG. 2 is a diagram showing the relationship between the valve and the detection device. FIG. 3 is a partially enlarged sectional view of the detection device, FIG. 4 is an enlarged left side view of the detection device partially cut away, and FIG. 5 is a partially enlarged left side view of the detection device of the present invention. It is an electrical explanatory diagram.

Claims (1)

[Claims] 1 Attach a mounting plate with a water hole that is screwed into the main body of the valve, make the center part of the mounting plate a reed like a water bottle, and screw in a 1JlilJR-shaped water flow impact mitigation wing that opens outward to the outside of the mounting part. At the same time, the inside of the water bottle is made into a hollow body with a bottom, a hollow valve pipe in the hollow inside of the water bottle is slidably fitted, and a valve made of a magnetic material is attached to the lower part of the hollow valve pipe. At the same time, a spring is inserted into the hollow part of the hollow internal valve pipe of the water bottle to elastically support the valve, and the vertical opening/closing amount of the valve can be adjusted by the spring. A valve seat pipe is attached to the main body of the valve as a support for the valve, and the water flow path is constructed so that it can be completely closed when the valve comes into contact with the valve seat pipe.
Furthermore, a magnetically sensitive detection device that penetrates the side wall of the main body of the valve is installed so that the distance between the tip of the device and the outer periphery of the valve when the valve is fully closed is minimized, and the detection device is installed so that the distance between the tip and the outer periphery of the valve when the valve is fully closed is minimized. The Chutsuki valve is a detection device that can quantitatively detect the upper and lower conditions of the valve based on the amount of change in magnetic flux density sensed by a coil within the detection device.