A corrosion-resistant fixed ball valve

Abstract

The present invention discloses a corrosion-resistant fixed ball valve, which relates to the technical field of ball valves, including an automatic regulating ball valve, a filter assembly and a backwash assembly. The two ports of the automatic regulating ball valve are detachably connected with the filter assembly, the filter assembly can filter the particle impurities in the transport pipeline, and the filter assembly is provided with a backwash assembly, which can backwash the filter screen of the filter assembly. The present invention can intercept large particles or impurities in the transported liquid through the filter assembly and the backwash assembly, and can backwash the filter assembly regularly, so that the impurities and particles in the transported liquid will not scratch, adhere and corrode the valve core ball, so that the corrosion rate of the valve core ball is reduced, and the service life of the equipment is greatly extended.

Description

Technical Field

[0001] The invention relates to the technical field of ball valves, in particular to a corrosion-resistant fixed ball valve. Background Art

[0002] A ball valve is a rotary valve, and its ball valve core is driven by the valve stem to rotate to control the on-off and flow rate of the fluid. The medium transported by the existing fixed ball valve contains granular impurities in the process of use. These granular impurities will collide and adhere to the valve core ball during the rapid transportation process, causing the valve core ball to corrode and damage faster, the sealing effect is poor, and the service life is greatly reduced. In addition, during the control operation, it is not possible to quickly and conveniently switch the control mode of the valve body operation adjustment, and it is not possible to automatically and conveniently realize and switch between manual screwing control of the valve body or automatic operation control of the valve body, which makes the control mode single and the control mode adjustment and switching inconvenient. Therefore, a device is needed to solve the above problems. Summary of the invention

[0003] The object of the present invention is to provide a corrosion-resistant fixed ball valve to solve the problems existing in the above-mentioned prior art, so that impurities in the delivery pipe can be filtered and the sealing effect and service life of the valve core ball are improved.

[0004] To achieve the above object, the present invention provides the following solutions: The present invention provides a corrosion-resistant fixed ball valve, comprising an automatic regulating ball valve, a filter assembly and a backwash assembly. The two ports of the automatic regulating ball valve are respectively detachably connected with the filter assembly, the filter assembly can filter particulate impurities in a transport pipeline, the filter assembly is provided with the backwash assembly, and the backwash assembly can backwash the filter screen of the filter assembly.

[0005] Preferably, the automatic regulating ball valve includes a valve seat, a valve core ball, a valve stem and an adjusting assembly, the two valve seats are symmetrically arranged and connected by flanges and bolts to form a spherical cavity, the valve core ball is arranged in the spherical cavity, the valve core ball is provided with a through hole matching the flow hole on the valve seat, the valve core ball is connected to the valve stem, each of the valve seats is connected to the filter assembly via flanges and bolts, and the valve stem is connected to the adjusting assembly.

[0006] Preferably, the adjustment assembly includes a support frame, a motor, a step transmission shaft, a clamping joint and a telescopic rod. The upper end of the motor is connected to the crossbeam of the support frame by bolts, and the lower end is connected to the large end of the step transmission shaft. The large end of the step transmission shaft is connected to one end of the vertically arranged telescopic rod, and the other end of the telescopic rod is connected to the clamping joint. A clamping sleeve is provided on the top of the valve stem, and the clamping joint can match the clamping sleeve.

[0007] Preferably, the upper end of the clamping joint is slidably sleeved on the small end of the stepped transmission shaft, and the cross-sections of the outer ring of the clamping joint and the inner ring of the sleeve are both regular polygons or spline cross-sections.

[0008] Preferably, the support frame comprises a support column and a cross beam, the lower ends of two support columns are symmetrically connected to the valve seat, and the upper ends are connected through the cross beam.

[0009] Preferably, the filter assembly includes a filter chamber seat, a filter chamber cover and a filter plate. The filter chamber seat and the filter chamber cover are connected to form a filter chamber by bolts. The filter plate is clamped in the filter chamber. The filter chamber seat is connected to the transport pipeline, and the filter chamber cover is connected to the automatic regulating ball valve.

[0010] Preferably, the backwash component is provided on the filter chamber seat, and the backwash component includes a buffer tank, a high-pressure gas booster pump and a waste pipe. The high-pressure gas booster pump is connected to one end of the filter chamber seat through the buffer tank, and the other end of the filter chamber seat is connected to the waste pipe. The high-pressure gas booster pump and the waste pipe are both located on the outside of the filter plate.

[0011] Preferably, a flushing nozzle is provided on the cache tank, and a flushing port is opened on the flushing nozzle. The flushing port is waist-shaped or rectangular and the length matches the width of the filter plate.

[0012] Preferably, the transport pipelines at both ends of the automatic regulating ball valve are connected with a main pipeline and a branch pipe through a tee, and the branch pipe is connected to the cache tank of the backwash component.

[0013] Preferably, solenoid valves are provided on both the main pipe and the branch pipe.

[0014] Compared with the prior art, the present invention has achieved the following technical effects: The present invention can intercept large particles or impurities in the conveyed liquid through the filter component and the backwash component, and can regularly backwash the filter component so that the impurities and particles in the conveyed liquid will not scratch, adhere to, and corrode the valve core ball, thereby reducing the corrosion rate of the valve core ball and greatly extending the service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a corrosion-resistant fixed ball valve in an embodiment of the present invention; Figure 2 The partial structure of the corrosion-resistant fixed ball valve in the embodiment of the present invention is shown in FIG. Figure 1 ; Figure 3 The partial structure of the corrosion-resistant fixed ball valve in the embodiment of the present invention is shown in FIG. Figure 2 ; Figure 4 The partial structure of the corrosion-resistant fixed ball valve in the embodiment of the present invention is shown in FIG. Figure 3 ; Figure 5 The partial structure of the corrosion-resistant fixed ball valve in the embodiment of the present invention is shown in FIG. Figure 4 ; Figure 6 The partial structure of the corrosion-resistant fixed ball valve in the embodiment of the present invention is shown in FIG. Figure 5 ; In the figure: 1-valve seat, 2-valve core ball, 3-valve stem, 4-filter chamber seat, 5-filter chamber cover, 6-filter plate, 7-ferrule, 8-support column, 9-crossbeam, 10-motor, 11-step transmission shaft, 12-card joint, 13-telescopic rod, 14-high-pressure gas booster pump, 15-drain pipe, 16-buffer tank, 17-flushing nozzle, 18-flushing port, 19-solenoid valve, 20-main line, 21-branch pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] The purpose of the present invention is to provide a corrosion-resistant fixed ball valve to solve the problems existing in the prior art, so that impurities in the delivery pipe can be filtered and the sealing effect and service life of the valve core ball are improved.

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] Embodiment 1 like Figures 1 to 6As shown, in this embodiment, a corrosion-resistant fixed ball valve is provided, including an automatic regulating ball valve, a filter assembly and a backwash assembly. The two ports of the automatic regulating ball valve are respectively detachably connected with the filter assembly, the filter assembly can filter particulate impurities in the transport pipeline, and a backwash assembly is arranged on the filter assembly, which can backwash the filter screen of the filter assembly.

[0021] As an optional solution, the automatic regulating ball valve in this embodiment includes a valve seat 1, a valve core ball 2, a valve stem 3 and an adjusting assembly. The two valve seats 1 are symmetrically arranged and connected by flanges and bolts to form a spherical cavity. The valve core ball 2 is arranged in the spherical cavity. The valve core ball 2 is provided with a through hole matching the flow hole on the valve seat 1. The valve core ball 2 is connected to the valve stem 3. Each valve seat 1 is connected to the filter assembly through flanges and bolts, and the valve stem 3 is connected to the adjusting assembly.

[0022] As an optional solution, the adjustment assembly in this embodiment includes a support frame, a motor 10, a step transmission shaft 11, a clamping joint 12 and a telescopic rod 13. The upper end of the motor 10 is connected to the crossbeam 9 of the support frame by bolts, and the lower end is connected to the large end of the step transmission shaft 11. The large end of the step transmission shaft 11 is connected to one end of the vertically arranged telescopic rod 13, and the other end of the telescopic rod 13 is connected to the clamping joint 12. The top of the valve stem 3 is provided with a clamping sleeve 7, and the clamping joint 12 can match the clamping sleeve 7. The telescopic rod 13 can be an electric push rod.

[0023] As an optional solution, in this embodiment, the upper end of the clamping joint 12 is slidably sleeved on the small end of the stepped transmission shaft 11, and the cross-sections of the outer ring of the clamping joint 12 and the inner ring of the clamping sleeve 7 are both regular polygonal or spline cross-sections. The telescopic rod 13 moves downward to make the clamping joint 12 and the clamping sleeve 7 fit together, so that the motor 10 drives the valve stem 3 to rotate, thereby realizing the opening adjustment and opening and closing of the valve core.

[0024] As an optional solution, in this embodiment, the support frame includes a support column 8 and a cross beam 9 , and the lower ends of the two support columns 8 are symmetrically connected to the valve seat 1 , and the upper ends are connected through the cross beam 9 .

[0025] As an optional solution, the filter assembly in this embodiment includes a filter chamber seat 4, a filter chamber cover 5 and a filter plate 6. The filter chamber seat 4 and the filter chamber cover 5 are connected to form a filter chamber by bolts. The filter plate 6 is clamped in the filter chamber. The filter plate 6 is arranged along the cross-sectional direction of the transport pipeline. The filter chamber seat 4 is connected to the transport pipeline, and the filter chamber cover 5 is connected to the automatic regulating ball valve.

[0026] As an optional solution, in the present embodiment, a backwashing assembly is provided on the filter chamber seat 4, and the backwashing assembly includes a buffer tank, a high-pressure gas booster pump 14 and a drainage pipe 15. The high-pressure gas booster pump 14 is connected to one end of the filter chamber seat 4 through the buffer tank, and the other end of the filter chamber seat 4 is connected to the drainage pipe 15. The high-pressure gas booster pump 14 and the drainage pipe 15 are both located on the outside of the filter plate 6, which is convenient for conveying and discharging the flushing liquid and impurity particles.

[0027] As an optional solution, in this embodiment, a flushing nozzle 17 is provided on the buffer tank, and a flushing port 18 is provided on the flushing nozzle 17. The flushing port 18 is waist-shaped or rectangular and its length matches the width of the filter plate 6. In this embodiment, the flushing nozzle 17 is arranged in an inclined shape, and the flushing port 18 faces the outer side of the filter plate 6, so that the outer side of the filter plate 6 can be quickly cleaned.

[0028] As an optional solution, the transport pipelines at both ends of the automatic regulating ball valve in this embodiment are connected with a main pipeline 20 and a branch pipe 21 through a tee, and the branch pipe 21 is connected to the cache tank of the backwashing component. Among them, the branch pipe 21 is L-shaped, flat at the end and hollow inside, which is convenient for connecting with the cache tank. When the filter plate 6 intercepts for a specified time, the solenoid valve 19 is opened and the valve core ball 2 is rotated to close the valve body. The transported liquid can be transported to the inside of the cache tank through the branch pipe 21, and then quickly flows and flushes toward the intercepting end face of the filter plate 6 through the flushing port 18, so as to flush the impurities intercepted on the filter plate 6.

[0029] As an optional solution, in this embodiment, solenoid valves 19 are provided on both the main pipe 20 and the branch pipe 21 to facilitate automatic control of the flow of the pipes.

[0030] Embodiment 2 The working principle and process of this embodiment are as follows: during use, the device can be quickly fixed and installed through the mounting base under the valve seat 1, and the device can be fixedly connected to the transport pipe body through the transport pipeline. During use, the device can realize manual screw adjustment and control, and can quickly switch to the automatic screw adjustment mode. During manual screw control, the valve core ball 2 can be driven to rotate by screwing the handwheel on the screw valve stem 3, so that the flow rate and opening and closing of the transported liquid can be adjusted; when it is necessary to realize automatic control of the operation of the device, the electric push rod is started, and the card connector 12 is driven by the electric push rod to move downward and insert it into the card sleeve 7, and then the motor 10 is started to drive the limit card column valve stem 3 to rotate, thereby causing the valve core ball 2 to rotate, and automatic flow regulation is realized. It is provided that after the support frame and the hand wheel are disassembled and removed, the automatic adjustment part can be removed from the device, so that the device can be automatically and conveniently assembled and used according to actual use requirements.

[0031] During the use of the device, after the transported liquid is filtered through the filter plate 6, the large particles or impurities inside the transported liquid can be intercepted and blocked, so that the impurities and particulate matter inside the transported liquid will not scratch, adhere to and corrode the valve core ball 2, which greatly reduces the corrosion efficiency of the valve core ball 2 and greatly increases the service life of the valve core ball 2. After the filter plate 6 intercepts the specified time, the solenoid valve 19 is opened and the valve core ball 2 is rotated to close the valve body. After the transported liquid is transported to the inside of the buffer tank through the branch pipe 21, it flows and flushes rapidly toward the intercepting end face of the filter plate 6 through the flushing port 18 to flush the impurities intercepted on the filter plate 6. Opening the solenoid valve 19 can discharge the liquid and impurities from the discharge pipe 15, so that the impurities and particulate matter intercepted on the filter plate 6 can be flushed and discharged regularly and conveniently. In addition, the two ends of the device are respectively provided with a filtering component and a filtering component, so that the valve core ball 2 can be protected when the two ends of the device transport liquid or change the direction of liquid transport, so that the valve core ball 2 will not be severely and quickly corroded, greatly extending the service life of the device.

[0032] When implementing this embodiment, a high-pressure gas booster pump 14 is set at the upper end of the buffer tank. When the buffer tank conveys and stores a specified amount of conveying liquid, the solenoid valve 19 is closed to start the high-pressure gas booster pump 14. The high-pressure gas booster pump 14 quickly sprays high-pressure gas into the buffer tank, so that the liquid stored in the buffer tank can be quickly sprayed from the flushing port 18 to the intercepted end surface of the filter plate 6, and the large particles of impurities intercepted on the filter plate 6 are quickly flushed, so that the impurity particles intercepted on the filter plate 6 can be automatically cleaned regularly. After cleaning, the liquid connects the impurities and is discharged through the discharge pipe after the solenoid valve 19 is opened, so that the filter plate 6 can intercept and filter for a long time and stably, and can achieve regular cleaning, which can fully protect the valve core ball 2.

[0033] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A corrosion-resistant fixed ball valve, characterized in that: It includes an automatic regulating ball valve, a filter component and a backwash component. The two ports of the automatic regulating ball valve are detachably connected to the filter components, the filter component can filter particulate impurities in the transport pipeline, and the backwash component is arranged on the filter component, and the backwash component can backwash the filter screen of the filter component.

2. The corrosion-resistant fixed ball valve according to claim 1, characterized in that: The automatic regulating ball valve includes a valve seat, a valve core ball, a valve stem and an adjusting assembly. The two valve seats are symmetrically arranged and connected by flanges and bolts to form a spherical cavity. The valve core ball is arranged in the spherical cavity. The valve core ball is provided with a through hole matching the flow hole on the valve seat. The valve core ball is connected to the valve stem. Each of the valve seats is connected to the filter assembly through flanges and bolts, and the valve stem is connected to the adjusting assembly.

3. The corrosion-resistant fixed ball valve according to claim 2, characterized in that: The adjustment assembly includes a support frame, a motor, a step transmission shaft, a clamping joint and a telescopic rod. The upper end of the motor is connected to the crossbeam of the support frame by bolts, and the lower end is connected to the large end of the step transmission shaft. The large end of the step transmission shaft is connected to one end of the vertically arranged telescopic rod, and the other end of the telescopic rod is connected to the clamping joint. A clamping sleeve is provided on the top of the valve stem, and the clamping joint can match the clamping sleeve.

4. The corrosion-resistant fixed ball valve according to claim 3, characterized in that: The upper end of the clamping joint is slidably sleeved on the small end of the stepped transmission shaft, and the cross-sections of the outer ring of the clamping joint and the inner ring of the sleeve are both regular polygons or spline cross-sections.

5. The corrosion-resistant fixed ball valve according to claim 3, characterized in that: The support frame comprises a support column and a cross beam. The lower ends of the two support columns are symmetrically connected to the valve seat, and the upper ends are connected through the cross beam.

6. The corrosion-resistant fixed ball valve according to claim 1, characterized in that: The filter assembly includes a filter chamber seat, a filter chamber cover and a filter plate. The filter chamber seat and the filter chamber cover are connected to form a filter chamber by bolts. The filter plate is clamped in the filter chamber. The filter chamber seat is connected to the transport pipeline, and the filter chamber cover is connected to the automatic regulating ball valve.

7. The corrosion-resistant fixed ball valve according to claim 6, characterized in that: The backwash component is arranged on the filter chamber seat, and the backwash component includes a buffer tank, a high-pressure gas booster pump and a waste pipe. The high-pressure gas booster pump is connected to one end of the filter chamber seat through the buffer tank, and the other end of the filter chamber seat is connected to the waste pipe. The high-pressure gas booster pump and the waste pipe are both located on the outside of the filter plate.

8. The corrosion-resistant fixed ball valve according to claim 7, characterized in that: The cache tank is provided with a flushing nozzle, and a flushing port is provided on the flushing nozzle. The flushing port is waist-shaped or rectangular, and the length of the flushing port matches the width of the filter plate.

9. The corrosion-resistant fixed ball valve according to claim 1, characterized in that: The transport pipelines at both ends of the automatic regulating ball valve are connected with a main pipeline and a branch pipe through a tee, and the branch pipe is connected to the cache tank of the backwash component.

10. The corrosion-resistant fixed ball valve according to claim 9, characterized in that: The main pipe and the branch pipe are both provided with solenoid valves.

Images