Novel ball valve

Abstract

A novel ball valve belongs to the technical field of valves and comprises a ball valve body, a water flow generator, a storage battery, a magnet, a reed switch, an alarm, a filter screen cylinder, a pressure detection circuit and a water leakage detection circuit. The filter screen cylinder and the water flow generator are respectively mounted in two ends of the valve seat; the magnet is mounted on the inner side of the handle seat; the two reed switches are mounted on the front outer side of the ball valve body; the pressure detection circuit is matched with a pressure sensor, the water leakage detection circuit is matched with a water leakage probe, and the pressure sensor and the water leakage probe are installed on the two sides of the valve seat respectively. And the storage battery, the alarm, the pressure detection circuit and the water leakage detection circuit are arranged in the element box and are electrically connected. Influences of impurities in liquid on the valve element, the valve seat and the like are reduced, whether the water outlet end of the valve seat leaks water or not and whether the filter screen cylinder is blocked or not can be automatically detected every time the valve element is closed and opened, and when abnormal conditions that the filter screen cylinder is blocked and the valve element is not closed well occur, related personnel can be prompted in time for maintenance.

Description

TECHNICAL FIELD

[0001] The utility model relates to valve equipment technical field, especially a novel ball valve. BACKGROUND

[0002] Ball valve is a kind of valve widely used in pipeline system, mainly used for cutting off, distribution or changing the flow direction of medium (such as petroleum, chemical industry, electric power, environmental protection, water conservancy, heating, water supply and drainage industries, used for water, oil, steam, gas, liquid and other medium transportation). The valve core of ball valve is a spherical body with a circular through hole, and the spherical body is driven by valve rod and rotates around the axis of ball valve. When the rotating handle drives the spherical body to rotate to a specific position (usually 90 °), the hole of its valve core will be aligned or staggered with the passage of valve seat, so as to realize the on-off of fluid.

[0003] Although the existing ball valve meets the medium control needs of pipeline to some extent, but due to the limitation of structure, there are still some technical problems. Specifically, the existing ball valve does not have filtering function, when the impurities in the input fluid medium are too much, it will cause wear between valve core and valve seat, and cannot achieve good medium flow control effect (such as after completely closing the valve core, due to the gap between valve core and valve seat, fluid still flows in and out). In addition, when the valve core, valve seat or other parts are worn due to various reasons, the inlet and outlet ends of valve seat cannot be completely closed, and the relevant personnel cannot be prompted in time for maintenance, so that it will have adverse effects on normal production in the production field (such as incomplete closing of valve core causing liquid leakage in pipeline, causing waste, etc.). In summary, it is very necessary to provide a ball valve that can filter the input and output liquid medium and monitor the sealing performance of valve core. CONTENT OF THE UTILITY MODEL

[0004] In order to overcome the disadvantages of the existing ball valve due to the limitation of structure as described in the background art, the utility model provides a ball valve body, which can automatically filter the input and output liquid under the joint action of related mechanisms, reduce the influence of impurities in liquid on valve core, and as far as possible improve the service life of ball valve body. When the valve core is closed and opened, it can automatically detect whether there is water leakage at the water outlet end of valve seat and whether there is blockage phenomenon in filter screen tube, and can prompt the relevant personnel to maintain in time when abnormal, and as far as possible ensure the normal work of the novel ball valve.

[0005] The technical scheme adopted by the utility model to solve its technical problems is:

[0006] The utility model provides a novel ball valve, including ball valve body, water flow generator, battery, magnet, dry reed, alarm, filter screen cylinder, still have pressure detection circuit, water leakage detection circuit, the valve seat both sides of ball valve body are connected pipe respectively with internal thread, filter screen cylinder fixed mounting in the connecting pipe of valve seat one end, water flow generator fixed mounting in the connecting pipe of valve seat other end, two dry reeds have at least, magnet fixed mounting in the inside end of handle seat of ball valve body, two dry reeds fixed mounting the front outside end of ball valve body, pressure detection circuit is equipped with pressure sensor, water leakage detection circuit is equipped with water leakage probe, the upper end of one side end connecting pipe of valve seat of ball valve body, the lower end of other side connecting pipe has the mounting hole respectively, the inlet pipe of pressure sensor, water leakage probe is fixed mounting in two boreholes respectively, battery, alarm, pressure detection circuit, water leakage detection circuit install in component box, component box installs in the outside end of ball valve body, the two poles of battery and generator power supply two poles, the power input end of pressure detection circuit and water leakage detection circuit electric connection, the power input end of alarm and the signal output end of pressure detection circuit, water leakage detection circuit electric connection, two dry reeds are connected with the signal input end of pressure detection circuit and water leakage detection circuit electrically respectively.

[0007] Further, the side end and rear end of the filter screen cylinder have a plurality of filter holes, and the filter screen cylinder is made of copper.

[0008] Further, the magnet is spaced apart from the dry reed, and the movable contact and the fixed contact of the dry reed are in a normally open structure.

[0009] Further, when the valve core of the ball valve body is in a closed state, the magnet is located in front of the two dry reeds, and the internal contacts of the two dry reeds are closed.

[0010] Further, the pressure detection circuit includes resistors and triodes electrically connected and connected with the pressure sensor, the positive power input end of the pressure sensor is connected with one end of the first resistor, one end of the second resistor is connected with the base of the first triode, the collector of the first triode and the base of the second triode are connected with the other end of the first resistor, the collector of the second triode is connected with the negative power input end of the pressure sensor, the emitter of the third triode is connected with one end of the third resistor, the base of the third triode and one end of the fourth resistor are connected with the other end of the third resistor, and the other end of the fourth resistor is connected with the signal output end of the pressure sensor.

[0011] Further, the water leakage detection circuit includes resistors and triodes electrically connected and connected with the water leakage probe, the water leakage probe includes an insulating seat and two copper rods, the lower ends of the two copper rods are fixedly installed on the insulating seat with a spacing therebetween, one of the two copper rods is connected with one end of the resistor, and the other end of the resistor is connected with the base of the triode.

[0012] Compared with the prior art, the utility model has the advantages that (1) the novel ball valve body is mainly used for liquid (such as water) conveying, the filter screen cylinder can automatically filter the liquid input from one end of the valve seat and output from the other end, reduces the influence of impurities in the liquid on the valve core, the valve seat and the like, and as far as possible, improves the service life of the ball valve body; (2) when the valve core is closed and opened each time, the water leakage detection circuit and the pressure detection circuit can respectively automatically detect whether there is water leakage at the water outlet end of the valve seat and whether there is a blockage phenomenon in the filter screen cylinder, and when the filter screen cylinder is blocked and the valve core is not closed well, the related personnel can be prompted in time to maintain, and as far as possible, the normal work of the valve seat body is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] The utility model will be further explained in connection with the drawings and examples.

[0014] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model.

[0015] Figure 2 It is the circuit diagram of the utility model. DETAILED DESCRIPTION

[0016] Figure 1 、 2As shown in the novel ball valve, including the ball valve body 1, full sealing water flow generator M, battery G1, magnet CT, reed tube GH1 and GH2, alarm B, filter screen cylinder 2, also has pressure detection circuit 3, water leakage detection circuit 4; the valve seat 101 of the ball valve body both sides of the connecting pipe has internal thread, the left side end of the filter screen cylinder 2 is open structure, and the left side end of the filter screen cylinder 2 is welded with a circle of limit seat 21 with larger outer diameter than the filter screen cylinder, the limit seat 21 has external thread, through the limit seat 21 of the filter screen cylinder is screwed into the internal thread in the middle of the left end of the valve seat 101, the filter screen cylinder 2 is fixedly installed in the middle of the connecting pipe of the left end of the valve seat (the left end of the connecting pipe connects the liquid supply end of the production area); The shell of the water flow generator M is circular structure and has external thread, through the shell of the water flow generator M is screwed into the internal thread in the middle of the right end of the valve seat 101, the water flow generator M is fixedly installed in the middle of the connecting pipe of the right end of the valve seat (the right end of the connecting pipe connects the water pipeline end of the production equipment of the production area); The two reed tubes GH1 and GH2 have permanent magnet piece CT, which is glued and installed on the inside end of the handle seat 102 of the ball valve body, and the two GH1 and GH2 are installed side by side on the front side of the shell 5, and the rear side of the shell 5 is glued on the front end of the ball valve body 1; The pressure detection circuit 3 is matched with a pressure sensor A1, the water leakage detection circuit 4 is matched with a water leakage probe 41, the left end of the valve seat of the ball valve body, the right end of the connecting pipe, the upper end of the connecting pipe and the lower end of the connecting pipe respectively have an opening, the inlet pipe of the pressure sensor A1 and the water leakage probe 41 are respectively fixedly and sealingly installed in the two openings (the wire connected with the water flow generator M is led out downwardly through the lower right end opening of the valve seat, and the opening is sealed with pressure-resistant sealing glue).

[0017] Figure 1 、 2As shown in the figure, the side end and the rear end of the filter screen cylinder 2 have a plurality of filter holes 22, and the filter screen cylinder 2 is made of copper. The inner side of the permanent magnet piece CT and the outer side of the shell 5 are spaced apart by a distance (1 mm), the movable contact and the static contact of the left dry reed tube GH2 in the shell 5 are of a normally open structure, and the movable contact is vertically located at the rear side, and the movable contact and the static contact of the right dry reed tube GH1 in the shell are of a normally open structure, and the movable contact is vertically located at the rear side. When the valve core of the ball valve body 1 is in a closed state, the magnet CT1 is located at the front end of the two dry reed tubes GH1 and GH2, one of the internal contacts of the dry reed tube GH2 is closed, and the internal contact of the other dry reed tube GH1 is closed. The pressure detection circuit includes resistors R2, R3, R4, R5, transistors Q, Q2, and Q3 connected by the circuit board, and is connected with the pressure sensor A1 through a wire, the positive power input end 1 of the pressure sensor A1 is connected with one end of the first resistor R3, one end of the second resistor R2 is connected with the base of the first transistor Q, the collector of the first transistor Q is connected with the other end of the first resistor R3 and the base of the second transistor Q2, the collector of the second transistor Q2 is connected with the negative power input end 2 of the pressure sensor A1, the emitters of the three transistors Q, Q2, and Q3 are connected with one end of the third resistor R5, the base of the third transistor Q3 is connected with the other end of the third resistor R5 and one end of the fourth resistor R4, and the other end of the fourth resistor R5 is connected with the signal output end 3 of the pressure sensor A1. The water leakage detection circuit includes a resistor R1 and a transistor Q1 connected by the circuit board, and is connected with the water leakage probe T through a wire, the water leakage probe includes a plastic insulating seat 6 and two copper rods T, the lower ends of the two copper rods T are fixedly installed on the insulating seat 6 with a spacing distance, and the insulating seat 6 is sealingly installed in the opening, one end of the lower end of one of the copper rods T is connected with the resistor, and the other end of the resistor R1 is connected with the base of the transistor Q1. The storage battery G1, the alarm B, the pressure detection circuit 3, and the water leakage detection circuit 4 are installed on the circuit board in the component box 7, and the component box 7 is installed on the front outer end of the ball valve body 1. The lower ends of the two copper rods are located in the connecting pipe about 3 mm above, and the normally remaining water will not contact the copper rods after the valve core is closed. If there is water leakage between the valve core and the valve seat, the water will flood the two copper rods T.

[0018] Figure 1 、 2As shown, the two poles of the battery G1 and the two poles of the power supply of the generator M, the one end of the power input resistor R3 of the pressure detection circuit and the emitter of the transistor Q, the emitter of the transistor Q1 of the water leakage detection circuit are connected by wires, the positive pole of the power input of the alarm B and the positive pole of the battery G1 are connected by wires. The collector of the transistor Q3 of the pressure detection circuit, the collector of the transistor Q1 of the water leakage detection circuit and the negative pole of the power input of the alarm B are connected by wires. The two ends of the reed switch GH1 are respectively connected by wires with the positive pole of the battery G1 and the lower end of the other copper rod T of the water leakage detection circuit, the two ends of the reed switch GH2 are respectively connected by wires with the other end of the resistor R2 of the pressure detection circuit and the one end of the resistor R3.

[0019] Figure 1 、 2As shown, the new type is based on the ball valve body 1, mainly used for liquid (such as water) delivery, when the user rotates the handle 102 to drive the ball to rotate to a certain position (usually 90°), the valve core hole will be aligned or staggered with the valve seat channel, so as to realize the on-off of the fluid. The above is the mature technology, this application will not be described, and the technical solution of the ball valve body itself will not be protected. In specific application, the filter hole 22 of the filter screen cylinder 2 can automatically filter the liquid input from one end of the valve seat and output from the other end, reducing the influence of impurities in the liquid on the valve core, valve seat and other parts, and prolonging the service life of the ball valve body as much as possible. When the liquid flows into and out of the ball valve body, the water flow will drive the water flow generator M to rotate, and then the water flow generator M will send about 6V DC power to the power input end of the storage battery G1, and charge the storage battery G1. In this way, the storage battery G1 can store electricity normally, without the need for additional power supply lines, saving electric energy (the distance between the motor and the blade of the water flow generator and the inner side of its shell, so as to avoid blocking the liquid flow). In the water leakage detection circuit, when the valve core of the ball valve body 1 is not closed, the magnet CT will not approach the reed tube GH1, and the internal contact of the reed tube GH1 will not be closed. In this way, the triode Q1 will not be turned on, and the alarm B will not be powered on and sound; when the valve core of the ball valve body 1 is closed, the magnet CT will approach the reed tube GH1, and the magnetic force will act on the reed tube GH1. The internal contact of the reed tube GH1 is closed, so that the 6V DC power will enter the other copper rod T. When the valve core is closed well, no water leaks into the valve seat right end connecting pipe of the ball valve body, so that the 6V power will not enter the triode Q1, and the alarm B will not be powered on and sound, indicating that the valve core is closed well; when the valve core of the ball valve body 1 is closed, the magnet CT approaches the reed tube GH1, and the internal contact of the reed tube GH1 is closed. The 6V DC power will enter the other copper rod T. When the valve core is not closed well, the water leakage between the valve seat and the valve core will enter the valve seat right end connecting pipe of the ball valve body, so that the 6V power will pass through the water, the two copper rods T submerged in water, and the resistor R1 (voltage limiting current) to enter the base of the triode Q1. The triode Q1 is turned on, and the low-level output of the collector enters the negative power input end of the alarm B. Thus, the alarm B is powered on and sounds, indicating that the valve core is not closed well. The staff can hear the sound in time and repair the ball valve body 1.

[0020] Figure 1 、 2As shown, in the pressure detection circuit, when the valve core of the ball valve body 1 is closed, the magnet CT will approach the reed tube GH2, the internal contact of the reed tube GH2 will be closed, so that the 6V power supply will enter the base of the transistor Q through the reed tube GH2 and the resistor R2, the transistor Q will be turned on, the low level output of the collector will enter the base of the transistor Q2, the transistor Q2 will be turned off, and then the pressure sensor A1 will not be powered and work, and the alarm B will not be powered and sound. When the valve core of the ball valve body 1 is opened, the magnet CT will be spaced from the reed tube GH2, and the magnetic force will no longer act on the reed tube GH2, so that the internal contact of the reed tube GH2 will be open, the 6V power supply will no longer enter the base of the transistor Q through the reed tube GH2 and the resistor R2, the transistor Q will be turned off, the low level output of the collector will no longer enter the base of the transistor Q2, the base of the transistor Q2 will be turned on by the resistor R3, the low level output of the collector will enter the negative power supply input end of the pressure sensor A1, and the pressure sensor A1 will be powered and work, so as to prepare for detecting whether the filter hole 22 of the filter cartridge 2 is blocked after each time the valve core is opened. When the filter hole 22 of the filter cartridge 2 is not blocked, the water flow is smooth, the voltage signal output by the 3-pin of the pressure sensor A1 is relatively low, and the voltage signal is divided by the resistors R4 and R5 to enter the base of the transistor Q3, which is lower than 0.7V, so that the transistor Q3 will not be turned on, the alarm B will not be powered and sound, and it is represented that the filter hole 22 of the filter cartridge 2 is not blocked. When the filter hole 22 of the filter cartridge 2 is partially or completely blocked, the water flow is not smooth, the voltage signal output by the 3-pin of the pressure sensor A1 is relatively high, and the voltage signal is divided by the resistors R4 and R5 to enter the base of the transistor Q3, which is higher than 0.7V, so that the transistor Q3 will be turned on, the low level output of the collector will enter the negative power supply input end of the alarm B, and then the alarm B will be powered and sound, which represents that the filter hole is partially or completely blocked, and the staff can hear the sound in time to maintain the ball valve body 1 (specifically, the alarm sounds when the valve core is closed, which represents that the valve core leaks, and the alarm sounds when the valve core is opened, which represents that the filter cartridge is blocked).

[0021] Figure 1 、 2 As shown, through the above, the present application reduces the influence of impurities in the liquid on the valve core and the valve seat, and as much as possible improves the service life of the ball valve body; when the filter screen cartridge is blocked and the valve core is not closed, the relevant personnel can be prompted in time to maintain, and the normal work of the valve seat body is ensured as much as possible. Figure 2In the middle, triode Q, Q1, Q2, Q3 model is 9013 (NPN) ; Resistance R1, R2, R3, R4, R5 resistance is 1K, 100K, 470K, 10K, 2.7K respectively; Battery G1 is the model 6V / 5Ah lithium battery; Reed GH1, GH2 is glass shell reed; Alarm B is the working voltage 6V active continuous sound alarm; Pressure sensor A1 is the model QDW90A-VD pressure sensor finished product, it has two power input, a signal output; Generator M is a DC 6V axial flow water generator.

[0022] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously the utility model is limited to the details of the above exemplary embodiments, and in the case where the spirit or basic characteristics of the utility model are not deviated, the utility model can be realized in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model.

[0023] In addition, it should be understood that, although the present specification is described in terms of embodiments, the embodiments do not contain only one independent technical solution, and the description of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. A new type of ball valve, comprising a ball valve body, a water flow generator, a storage battery, a magnet, a reed, an alarm, a filter screen cylinder, characterized in that, It also has pressure detection circuit, leakage detection circuit; the ball valve body valve seat both sides of the connecting pipe has internal thread, filter screen cylinder fixed installation in the connecting pipe of valve seat one end; the water current generator fixed installation in the connecting pipe of valve seat other end; the dry reed tube has at least two, magnet fixed installation in the ball valve body handle seat inside end, two dry reed tube fixed installation ball valve body front outside end; The pressure detection circuit is matched with pressure sensor, leakage detection circuit is matched with leakage probe, the ball valve body valve seat one side end connecting pipe upper end, the other side connecting pipe lower end has installation hole respectively, the inlet pipe of pressure sensor, leakage probe is fixedly installed in two openings respectively; The battery, alarm, pressure detection circuit, leakage detection circuit are installed in the component box, and the component box is installed in the outside end of the ball valve body; The two poles of the battery and the two poles of the generator power supply, the power input end of the pressure detection circuit and the leakage detection circuit are electrically connected, the power input end of the alarm and the signal output end of the pressure detection circuit and the leakage detection circuit are electrically connected, and the two dry reed tubes are electrically connected with the signal input end of the pressure detection circuit and the leakage detection circuit respectively.

2. The new ball valve according to claim 1, characterized in that, The side end and the rear end of the filter screen cylinder have a plurality of filter holes, and the filter screen cylinder is made of copper material.

3. The new ball valve according to claim 1, characterized in that, The inside of the magnet and the outside of the dry reed tube are spaced apart, and the moving contact and the static contact of the dry reed tube are normally open structure.

4. The new ball valve according to claim 1, characterized in that, When the valve core of the ball valve body is in the closed state, the magnet is located in front of the two dry reed tubes, and the internal contact of the two dry reed tubes is closed.

5. The new ball valve according to claim 1, characterized in that, The pressure detection circuit includes electrically connected resistors and triodes, and is connected with the pressure sensor, the positive power input end of the pressure sensor is connected with one end of the first resistor, the other end of the first resistor is connected with the base of the first triode, the collector of the first triode is connected with the other end of the first resistor and the base of the second triode, the collector of the second triode is connected with the negative power input end of the pressure sensor, the emitter of the three triodes is connected with one end of the third resistor, the base of the third triode is connected with the other end of the third resistor and one end of the fourth resistor, the other end of the fourth resistor is connected with the signal output end of the pressure sensor.

6. The new ball valve according to claim 1, characterized in that, The leakage detection circuit includes electrically connected resistors and triodes, and is connected with the leakage probe, the leakage probe includes an insulating seat and two copper rods, the lower ends of the two copper rods are fixedly installed on the insulating seat with a certain distance, one of the copper rods is connected with one end of the resistor, and the other end of the resistor is connected with the base of the triode.

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