Double-loose-joint filtering type ball valve

Abstract

The utility model discloses a double-loose-joint filtering type ball valve, which relates to the technical field of ball valves and comprises a valve body and a T-shaped three-way connector. The filter screen assembly comprises a filter screen covering all the areas of the channel of the valve body and a connecting frame arranged horizontally to the channel; the temperature and pressure meter is connected to the valve body; the loose joint assembly is connected to the connector of the valve body; and the blow-down valve assembly is connected to the blow-down port of the valve body. The utility model has the advantages of large flow, small occupied space and convenience in disassembly and assembly, and can monitor temperature and pressure in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, and particularly relates to a double union filter type ball valve. Background Art

[0002] Ball valves are used for cutting off in pipeline systems and are widely used in industrial and civil pipelines. In the water supply network, due to impurities such as sediment existing in the fluid itself and pipeline corrosion, the pipeline fluid is polluted, affecting the use of pipe fittings and related equipment. It is necessary to filter and remove impurities from the fluid in the pipeline to ensure water use safety. Various filtering devices have emerged in the industry, but there are problems of cumbersome assembly and inconvenient disassembly. And traditional ball valves mainly focus on controlling the on-off of the fluid in design and usually do not include built-in pressure or temperature sensors. This not only increases costs and complexity but also may occupy additional space. Also, the filtering structure of some traditional ball valves will reduce the area of the channel, resulting in a problem of reduced flow rate.

[0003] For example, the patent with the publication number CN201610959U discloses a union three-way ball valve, which includes a pipe, a ball valve, and a bypass interface, and a union nut connects the pipe and the ball valve. Summary of the Utility Model

[0004] Technical Problems to be Solved by the Utility Model

[0005] Aiming at the technical problems of the existing filter ball valves, such as cumbersome assembly, inconvenient disassembly, inability to monitor temperature and pressure, and reduced flow rate, the utility model provides a double union filter type ball valve, which has a large flow rate, occupies a small space, is convenient for disassembly and assembly, and can monitor temperature and pressure in real time.

[0006] Technical Solution

[0007] To solve the above problems, the technical solution provided by the utility model is as follows:

[0008] A double union filter type ball valve includes a valve body including a T-shaped three-way interface; a filter screen assembly including a filter screen covering all areas of the channel of the valve body and a connecting frame arranged horizontally with respect to the channel; a temperature and pressure gauge connected to the valve body; a union assembly connected to the interface of the valve body; and a drain valve assembly connected to the drain port of the valve body.

[0009] Valve body: This is the main part of the ball valve, usually made of metal, with a spherical closing member inside. By rotating this spherical closing member, the flow of the fluid is controlled. In the described ball valve, the valve body adopts a T-shaped three-way interface, which means it has three ports, allowing the fluid to enter or flow out from two directions.

[0010] Filter screen assembly: This part includes a filter screen and a connecting bracket. The function of the filter screen is to intercept impurities in the fluid and keep the downstream equipment clean and operating normally. The connecting bracket is used to fix the filter screen to ensure its correct position and prevent it from being washed away by the fluid. The design of the filter screen covers all areas of the valve body passage to achieve the maximum filtering effect.

[0011] Temperature and pressure gauge: This is a set of instruments used to monitor the temperature and pressure of the fluid in real time, usually installed on the valve body. Through the temperature and pressure gauge, the operator can understand the working conditions in the pipeline at any time, which is very important for preventing potential dangers such as overheating and overpressure.

[0012] Union assembly: A union refers to a connection method that is easy to disassemble and install. In a ball valve, the union assembly enables the valve body to be quickly connected or disconnected from the pipeline system, simplifying the maintenance and replacement process.

[0013] Drain valve assembly: This is designed to clean the impurities accumulated in the valve body. The drain valve assembly is usually located at the bottom or side of the valve body. When it is necessary to remove the deposits on the filter screen, the drain valve can be opened to discharge them, thus avoiding the trouble of disassembling the entire ball valve.

[0014] Optionally, the union assembly includes a first connecting sleeve, a ring projection, and a second connecting sleeve. The ring projection is a limiting structure for the external pipeline. The first connecting sleeve cooperates with the ring projection for limitation. The second connecting sleeve is movably connected to the valve body, and the first connecting sleeve and the second connecting sleeve are movably connected.

[0015] First connecting sleeve: This is usually a sleeve with internal threads or a specific snap structure, used to receive the end of the external pipeline. The first connecting sleeve cooperates with the ring projection to form a limiting structure to prevent the pipeline from accidentally detaching under pressure or vibration.

[0016] Ring projection: This is a ring-shaped protrusion at the end of the external pipeline, which plays a limiting role. When the pipeline is inserted into the first connecting sleeve, the ring projection will contact the edge of the first connecting sleeve, preventing the pipeline from further penetrating and ensuring the stable position of the pipeline.

[0017] Second connecting sleeve: This is usually a sleeve with external threads or other connection mechanisms, movably connected to the valve body. The second connecting sleeve may need to be screwed tightly with the first connecting sleeve or use fixing devices such as clamps to ensure the tightness and sealing of the connection.

[0018] Movable connection: Here, the movable connection means that the first connecting sleeve and the second connecting sleeve can be easily connected and disconnected in a certain way without using tools. This design enables on-site operators to quickly perform repairs or replacements without damaging the integrity of the system.

[0019] Optionally, a V-ring is provided at the end of the ring projection, and a bevel or curved surface that mates with the V-ring is provided at the end of the second connecting sleeve.

[0020] V-ring: A V-ring is a common sealing element, usually made of wear-resistant and oil-resistant rubber or elastic material. It is called a V-ring because its cross-sectional shape is V-shaped. One side (right-angle side) of the V-ring is in close contact with the end of the ring projection, while the other side (bevel side) contacts the bevel or curved surface of the second connecting sleeve during connection.

[0021] Bevel or curved surface: The end of the second connecting sleeve is machined with a bevel or curved surface that matches the bevel side of the V-ring. When the second connecting sleeve cooperates with the ring projection and the first connecting sleeve, the bevel or curved surface on the second connecting sleeve exerts pressure on the V-ring, forcing the V-ring to deform and closely adhere to the connection part, thereby forming a good sealing effect.

[0022] Optionally, the filter screen is perpendicularly arranged with respect to the channel and the connecting frame, and the connecting frame is connected to the turning point of the tee.

[0023] Perpendicular arrangement of the filter screen:

[0024] The filter screen is perpendicular to the direction of fluid flow. This design ensures that the fluid must pass through the filter screen to pass through the valve body, thereby capturing impurities in the fluid to the greatest extent. The perpendicular arrangement also helps to reduce the pressure loss during fluid flow because the resistance of the filter screen is distributed over the entire filtering area rather than concentrated at a certain point.

[0025] Function of the connecting frame:

[0026] The connecting frame is used to support the filter screen and fix it in place, ensuring that the filter screen will not be displaced or damaged by the high-speed flowing fluid. The design of the connecting frame should take into account fluid dynamics and avoid forming vortices or dead corners where impurities may accumulate and affect the filtering effect.

[0027] The connecting frame is connected to the turning point of the tee:

[0028] The turning point of the tee is where the fluid changes direction. Setting the connecting frame and the filter screen here can utilize the natural turning of the fluid to assist the filtering process. When the fluid turns, it will naturally shift to one side, and this shift helps to push the impurities towards the filter screen, improving the filtering efficiency.

[0029] In addition, the position of the turning point is also convenient to be designed as detachable, facilitating regular cleaning or replacement of the filter screen without affecting the functions of other parts.

[0030] Optionally, the filter screen is located at the center of the tee interface, and the connecting frame blocks the channels of the sewage outlet and the outlet.

[0031] The filter screen is located at the center of the tee interface:

[0032] Placing the filter screen at the center of the three-way interface can ensure that the fluid can be filtered by the filter screen regardless of which inlet it enters from. This maximizes the filtering effect and ensures that impurities in the fluid are removed before leaving the ball valve.

[0033] The connecting frame blocks the channels of the sewage outlet and the outlet:

[0034] The design of the connecting frame not only supports the filter screen but also plays an isolation role, especially when it is necessary to open the sewage outlet for cleaning or discharging sediments. This layout of the connecting frame can prevent unfiltered fluid from flowing directly out of the outlet, ensuring the cleanliness and safety of the system.

[0035] During the sewage discharge operation, due to the presence of the connecting frame, sediments and impurities in the fluid will be guided to the sewage outlet without affecting the fluid quality at the outlet. This makes the maintenance operation more efficient and also reduces the potential pollution risk to downstream equipment.

[0036] Optionally, the outlet channel of the valve body is provided with an opening, and the opening is connected to the temperature and pressure gauge.

[0037] Real-time monitoring: The direct connection of the temperature and pressure gauge enables the operator to monitor the temperature and pressure conditions of the fluid after passing through the ball valve in real time. This is crucial for ensuring the safe operation of the system because abnormal temperature or pressure may be an early warning signal of system failure.

[0038] Precise control: Based on the readings of the temperature and pressure gauge, the operator can adjust the valves, pumps, or other equipment upstream or downstream to maintain the required process conditions. For example, during the heating or cooling process, the temperature data can help adjust the working state of the heater or cooler to reach the set target temperature.

[0039] Maintenance and diagnosis: The data of the temperature and pressure gauge can also be used to diagnose whether there are potential problems in the ball valve or other components in the system. For example, if the pressure suddenly drops, it may indicate a leak or blockage; while an abnormal increase in temperature may indicate a risk of local overheating.

[0040] Optionally, the union fitting assembly connected to the inlet of the valve body is a PPR union fitting assembly, and the union fitting assembly connected to the outlet of the valve body is a copper union fitting assembly.

[0041] The PPR union fitting assembly at the inlet: PPR (random copolymer polypropylene) is a high-performance thermoplastic with good chemical stability and high-temperature resistance. PPR union fitting assemblies are widely used in the water supply and drainage systems due to their light weight, corrosion resistance, and easy installation. Selecting PPR as the material for the inlet union fitting assembly may be because of its high cost-effectiveness, good resistance to chemical erosion of the inlet fluid, and ensuring the sealing performance and strength of the connection.

[0042] Brass union assembly at the outlet: As a traditional material, brass has excellent thermal conductivity, electrical conductivity, and corrosion resistance. Brass union assemblies are favored in many industrial fields, especially in applications that require higher pressure and temperature resistance. Brass alloys can also resist corrosion from seawater and most industrial gases. Therefore, using a brass union assembly at the outlet can ensure the reliability and long service life of the connection, especially in high-pressure or high-temperature environments.

[0043] Optionally, the blowdown valve assembly is connected through a mounting seat, and a sealing ring is provided on the periphery of the mounting seat.

[0044] Function of the mounting seat:

[0045] As a transition piece, the mounting seat is used to firmly connect the blowdown valve assembly to the valve body of the ball valve. It provides the necessary mechanical support to ensure that the blowdown valve assembly remains stable under fluid pressure and does not loosen or fall off easily.

[0046] Importance of the sealing ring:

[0047] The sealing ring is usually made of rubber or other elastic materials and is installed on the periphery of the mounting seat. Its main function is to form a sealing layer between the mounting seat and the valve body to prevent fluid leakage from the connection. The design and material selection of the sealing ring need to be determined according to the temperature, pressure, and fluid type of the working environment to ensure long-term reliable sealing performance.

[0048] Maintenance and cleaning:

[0049] The connection method of the blowdown valve assembly through the mounting seat makes it relatively easy to disassemble the blowdown valve for thorough cleaning when it is necessary to clean the impurities inside the valve body. The use of the sealing ring also ensures that the connection between the blowdown valve assembly and the valve body remains tight and leak-free after reinstallation.

[0050] Safety and reliability:

[0051] For systems that require regular sediment discharge or cleaning, the reliable connection of the blowdown valve assembly is crucial. With the double guarantee of the mounting seat and the sealing ring, the risk of leakage caused by poor connection can be reduced, thereby improving the safety and operating efficiency of the entire system.

[0052] Beneficial effects

[0053] Adopting the technical solution provided by the present utility model, compared with the prior art, has the following beneficial effects:

[0054] The technical solution provided by the present utility model is provided with a union assembly, which is convenient for disassembly and assembly; the valve body of the T-shaped tee, the filter screen assembly covers the filter screen of all areas of the channel of the valve body, with a large flow rate and small occupied space; the temperature and pressure gauge can monitor the temperature and pressure in real time. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 FIG. 1 is a schematic structural diagram of a double-union filter-type ball valve proposed in an embodiment of the present utility model;

[0056] Figure 2 FIG. 2 is one of the implementation manners of a double-union filter-type ball valve proposed in an embodiment of the present utility model;

[0057] Figure 3 FIG. 3 is another implementation manner of a double-union filter-type ball valve proposed in an embodiment of the present utility model;

[0058] 1. Valve body; 2. Filter screen assembly; 201. Filter screen; 202. Connecting frame; 3. Mounting seat; 4. Drain valve assembly; 5. PPR union assembly; 501. First connecting sleeve; 502. Ring convex; 503. V-ring; 504. Second connecting sleeve; 6. Ball valve assembly; 7. Copper union assembly; 8. Temperature and pressure gauge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0059] To further understand the content of the present utility model, the present utility model will be described in detail in conjunction with the drawings and embodiments.

[0060] Embodiment

[0061] Combined with the attached Figure 1 drawings, a double-union filter-type ball valve includes a valve body 1, including a T-shaped tee joint. A ball valve assembly 6 is provided inside the valve body 1, and the valve core of the ball valve is spherical, and rotation is used to control the opening and closing of the channel inside the valve body 1. A rotatable switch is fixedly connected above the valve core to rotate the valve core. The valve core is located at the inlet, the inlet is connected to the PPR union assembly 5, and the outlet is connected to the copper union assembly 7.

[0062] The filter screen assembly 2 includes a filter screen 201 covering all areas of the channel of the valve body 1 and a connecting frame 202 arranged horizontally with respect to the channel. The function of the filter screen 201 is to intercept impurities in the fluid and keep the downstream equipment clean and operating normally. The connecting frame 202 is used to fix the filter screen 201 to ensure its correct position and prevent it from being washed away by the fluid. The filter screen 201 is designed to cover all areas of the channel of the valve body 1 to achieve the maximum filtering effect.

[0063] The temperature and pressure gauge 8 is connected to the valve body 1. An opening is provided in the outlet channel of the valve body 1, and the opening is connected to the temperature and pressure gauge 8.

[0064] The union assembly is connected to the interface of the valve body 1. In this embodiment, the union assembly is connected by threads for quick disassembly and installation. The drain valve assembly 4 is connected to the drain port of the valve body 1.

[0065] The filter screen 201 is located in the center of the tee interface, and the connecting frame 202 blocks the channels of the drain port and the outlet. A half space is left between the filter screen 201 and the valve body 1 to allow the filtered dirty water to pass through and enter the drain valve assembly 4.

[0066] The drain valve assembly 4 is connected through the mounting seat 3, and a sealing ring is provided on the periphery of the mounting seat 3.

[0067] Combined with the attached Figure 2 figure, the filter screen 201 is perpendicular to the channels and the connecting frame 202, and the connecting frame 202 is connected to the turning point of the tee. It is also called the 90° straight-through filter screen 201 structure. The impact force of water acts vertically on the filter screen 201, obtaining the maximum filtration efficiency, large flow rate, and small occupied space. The connecting frame 202 is a horizontal plate without a structure that can pass liquid.

[0068] Combined with the attached Figure 3 figure, the union assembly includes a connecting sleeve one 501, a ring convex 502, and a connecting sleeve two 504. The ring convex 502 is a limiting structure for the external pipeline. The connecting sleeve one 501 is matched with the ring convex 502 for limiting. The connecting sleeve two 504 is movably connected to the valve body 1, and the connecting sleeve one 501 and the connecting sleeve two 504 are movably connected. Threads are provided on the inner side of the connecting sleeve one 501, and respectively adapted threads are provided on the outer sides of both ends of the connecting sleeve two 504. Threads adapted to them are provided on the inner side of the interface of the valve body 1. The connecting sleeve one 501 and the connecting sleeve two 504, and the connecting sleeve two 504 and the valve body 1 are connected by threads in a union manner.

[0069] The union assembly connected to the inlet of the valve body 1 is a PPR union assembly 5, and the union assembly connected to the outlet of the valve body 1 is a copper union assembly 7. The PPR union assembly 5 and the copper union assembly 7 have the same structure but different materials. A V-ring 503 is provided at the end of the ring convex 502, and an inclined surface or a curved surface adapted to the V-ring 503 is provided at the end of the connecting sleeve two 504.

[0070] The filter screen 201 assembly is embedded in the groove of the valve body 1, and the filter screen 201 assembly is fixed by screwing the mounting seat 3 into the valve body 1.

[0071] Working principle:

[0072] Water flows from the PPR union into the ball valve assembly 6. When passing through the filter screen assembly 2, the filtered clean water flows out through the copper union assembly 7, and the filtered dirty water is discharged into the sewage pipeline by opening the drain assembly.

[0073] The above has schematically described the present utility model and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design, without creative efforts, structural manners and embodiments similar to the technical solution without departing from the gist of the creation of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A double-ferrule filtering ball valve, characterized in that including a valve body including a T-shaped three-way joint; a filter assembly including a filter screen covering all areas of the passage of the valve body and a connecting frame arranged horizontally with respect to the passage; a temperature and pressure gauge connected to the valve body; a union assembly connected to the interface of the valve body; a drain valve assembly connected to the drain port of the valve body.

2. The double-ferrule filter type ball valve according to claim 1, characterized in that, The union assembly includes a first connecting sleeve, a ring convex, and a second connecting sleeve. The ring convex is a limiting structure for an external pipeline. The first connecting sleeve is cooperatively limited with the ring convex. The second connecting sleeve is movably connected to the valve body, and the first connecting sleeve and the second connecting sleeve are movably connected.

3. The double-ferrule filter type ball valve according to claim 2, wherein A V-ring is provided at the end of the ring convex, and an inclined surface or a curved surface cooperating with the V-ring is provided at the end of the second connecting sleeve.

4. A double-live-joint filter type ball valve according to claim 1, characterized in that, The filter screen is arranged perpendicular to the passage and the connecting frame, and the connecting frame is connected to the turning point of the three-way joint.

5. The double-ferrule filtering ball valve according to claim 4, characterized in that The filter screen is located at the center of the three-way joint, and the connecting frame blocks the passages of the drain port and the outlet.

6. The double-live-joint filtering ball valve according to claim 1, wherein, An opening is provided in the outlet passage of the valve body, and the opening is connected to the temperature and pressure gauge.

7. The double-live-joint filtering ball valve according to claim 1, characterized in that, The union assembly connected to the inlet of the valve body is a PPR union assembly, and the union assembly connected to the outlet of the valve body is a copper union assembly.

8. A double-ferrule filter type ball valve according to claim 1, characterized in that, The drain valve assembly is connected through a mounting seat, and a sealing ring is provided on the periphery of the mounting seat.

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