Device for measuring and gating incoming liquid of multiple pipelines

Abstract

The utility model relates to the technical field of incoming liquid measuring devices, in particular to a device for multi-pipeline incoming liquid measuring gating. Comprising an upper valve body; the upper valve body and the lower valve body are fixedly installed together, a sealing cavity is formed between the upper valve body and the lower valve body, at least three medium inlet channels communicated with the sealing cavity are arranged on the outer side of the upper portion of the upper valve body at intervals along the circumference, the valve element is located in the sealing cavity, a cross-shaped circulation channel is arranged in the left portion of the valve element, and a communication channel is arranged in the right portion of the valve element. And the upper end of the communicating channel is communicated with one medium inlet channel of the upper valve body at the corresponding position. The liquid metering and analyzing valve is reasonable and compact in structure and convenient to use, achieves the purpose of metering or analyzing liquid from one of the multiple pipelines through matched use of the upper valve body, the valve element, the lower valve body and the power input shaft, has the advantages of being safe and reliable, facilitates operation, improves working efficiency, and is suitable for popularization and application. And the installation number and the operation cost of metering equipment are greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of liquid inflow measurement devices, and is a device for selecting and measuring liquid inflow from multiple pipelines. Background Technology

[0002] In many petrochemical or water supply and drainage facilities, certain processes require the metering or analysis of incoming liquids from multiple pipelines. This necessitates installing instruments on each pipeline for individual metering or analysis, resulting in high equipment investment and operating costs. Summary of the Invention

[0003] This invention provides a device for selecting and measuring incoming liquid in multiple pipelines, which overcomes the shortcomings of the prior art. It can effectively solve the problem that some processes require the measurement or analysis of incoming liquid in multiple pipelines, which necessitates the installation of instruments on each incoming liquid pipeline, resulting in high equipment investment and operating costs.

[0004] The technical solution of the present invention is achieved through the following measures: a device for measuring and selecting liquid inlet from multiple pipelines, comprising an upper valve body, a valve core, a lower valve body, and a power input shaft; the lower end of the upper valve body and the upper end of the lower valve body are fixedly installed together, forming a sealed cavity between the upper and lower valve bodies; at least three medium inlet channels communicating with the sealed cavity are provided circumferentially on the upper outer side of the upper valve body; the valve core is located inside the sealed cavity; an upper mounting hole is provided on the upper end face of the upper valve body; the lower end of the power input shaft passes through the upper mounting hole and is fixedly connected to the top of the valve core; a cross-shaped flow channel is provided in the left part of the valve core; a vertical connecting channel is provided in the right part of the valve core; the lower part of the connecting channel is connected to the right end of the flow channel; the upper end of the connecting channel is connected to a medium inlet channel of the upper valve body at the corresponding position; a medium selection output port channel is provided in the right part of the lower valve body; the left end of the medium selection output port channel is connected to the lower end of the flow channel; and a medium concentration output port communicating with the sealed cavity is provided at the left end of the lower valve body.

[0005] The following are further optimizations and / or improvements to the above-mentioned technical solution:

[0006] The left end of the aforementioned flow channel is connected to the sealing cavity, and a valve core inspection nut is fixedly installed at the left end of the flow channel.

[0007] The aforementioned mounting bracket is fixedly installed on the upper valve body; a display device is fixedly installed on the mounting bracket.

[0008] The aforementioned connecting channel is a channel with a larger inner diameter at the top and a smaller inner diameter at the bottom. A sealing pair, a compensating spring, and a compensating adjusting nut are installed sequentially from top to bottom on the upper part of the connecting channel. The compensating adjusting nut and the inner wall of the connecting channel are fixed together by threads. The upper end face of the sealing pair is pressed against the lower end face of the upper valve body by the compensating spring.

[0009] The aforementioned input shaft adjusting nut, packing bracket, and sealing packing are installed sequentially from top to bottom on the outer side of the middle part of the power input shaft. The upper part of the input shaft adjusting nut and the lower part of the display device are fixedly installed together. The lower outer side of the input shaft adjusting nut and the upper inner side of the packing bracket are fixedly installed together. A power input shaft bearing is installed on the outer side of the power input shaft between the input shaft adjusting nut and the packing bracket. A straightening upper sleeve is installed on the lower outer side of the power input shaft. The lower part of the packing bracket, the upper part of the straightening upper sleeve, and the sealing packing are all located in the upper mounting hole.

[0010] The lower valve body has a stepped mounting hole that is larger at the top and smaller at the bottom on the inner wall of the middle part. The lower left end of the valve core matches the mounting hole and is installed in the mounting hole. A centering sleeve, a valve core bearing, and a centering lower sleeve are installed sequentially from top to bottom on the outer side of the lower left end of the valve core. The lower part of the centering sleeve, the valve core bearing, and the centering lower sleeve are all located in the mounting hole.

[0011] The above-mentioned medium inlet channel is an L-shaped channel; a connecting flange is fixedly connected to the outer end of the medium inlet channel, a connecting flange is fixedly connected to the outer end of the medium selection outlet channel, and a connecting flange is fixedly connected to the outer end of the medium centralized outlet.

[0012] This invention has a reasonable and compact structure and is easy to use. Through the coordinated use of the upper valve body, valve core, lower valve body and power input shaft, it can achieve the purpose of metering or analyzing the liquid coming from one of multiple pipelines. It has the characteristics of safety and reliability, facilitates operation, improves work efficiency, and greatly reduces the number of metering devices installed and the operating cost. Attached Figure Description

[0013] Appendix Figure 1 This is a cross-sectional structural diagram of the present invention.

[0014] Appendix Figure 2 For the appendix Figure 1 A schematic diagram of the three-dimensional structure after rotating 90 degrees counterclockwise.

[0015] The codes in the attached diagram are as follows: 1 for upper valve body, 2 for valve core, 3 for lower valve body, 4 for power input shaft, 5 for sealing cavity, 6 for medium inlet channel, 7 for upper mounting hole, 8 for flow channel, 9 for connecting channel, 10 for medium selection output port channel, 11 for medium centralized output port, 12 for valve core inspection nut, 13 for mounting bracket, 14 for display device, 15 for sealing pair, 16 for compensation spring, 17 for compensation adjusting nut, 18 for input shaft adjusting nut, 19 for packing bracket, 20 for sealing packing, 21 for power input shaft bearing, 22 for upper straightening sleeve, 23 for lower mounting hole, 24 for middle straightening sleeve, 25 for valve core bearing, 26 for lower straightening sleeve, and 27 for connecting flange. Detailed Implementation

[0016] The present invention is not limited to the following embodiments, and the specific implementation can be determined according to the technical solution of the present invention and the actual situation.

[0017] The present invention will be further described below with reference to embodiments and accompanying drawings:

[0018] As attached Figure 1 , 2 As shown, the device for multi-pipe liquid measurement and selection includes an upper valve body 1, a valve core 2, a lower valve body 3, and a power input shaft 4. The lower end of the upper valve body 1 and the upper end of the lower valve body 3 are fixedly installed together, forming a sealed cavity 5 between the upper valve body 1 and the lower valve body 3. At least three medium inlet channels 6 connected to the sealed cavity 5 are provided circumferentially along the upper outer side of the upper valve body 1. The valve core 2 is located inside the sealed cavity 5. An upper mounting hole 7 is provided on the upper end face of the upper valve body 1. The lower end of the power input shaft 4 passes through the upper mounting hole 7 and is fixedly connected to the top of the valve core 2. Together, a cross-shaped flow channel 8 is provided in the left part of the valve core 2, and a vertical connecting channel 9 is provided in the right part of the valve core 2. The lower part of the connecting channel 9 is connected to the right end of the flow channel 8, and the upper end of the connecting channel 9 is connected to a medium inlet channel 6 of the upper valve body 1. A medium selection output port channel 10 is provided in the right part of the lower valve body 3. The left end of the medium selection output port channel 10 is connected to the lower end of the flow channel 8. A medium concentration output port 11 connected to the sealing cavity 5 is provided at the left end of the lower valve body 3. The cross-shaped flow channel 8 is provided in the left part of the valve core 2. The upper end of the flow channel 8 is not for flow. The flow channel 8 can also be a T-shaped channel. In this way, through the cooperation of the upper valve body 1, valve core 2, lower valve body 3 and power input shaft 4, the purpose of metering or analyzing the liquid coming from one of the multiple pipelines can be achieved. It has the characteristics of safety and reliability, facilitates operation, improves work efficiency, and greatly reduces the number of metering equipment and operating costs.

[0019] The above-mentioned device for selecting liquid inlet measurement in multiple pipelines can be further optimized and / or improved according to actual needs:

[0020] As attached Figure 1 As shown, the left end of the flow channel 8 is connected to the sealing cavity 5, and a valve core inspection nut 12 is fixedly installed at the left end of the flow channel 8. The valve core inspection nut 12 can be used for machining feed during the machining process, and can also be used to remove dirt by unscrewing the valve core inspection nut 12 when the valve core 2 is clogged or otherwise blocked.

[0021] As attached Figure 1 , 2As shown, a mounting bracket 13 is fixedly mounted on the upper valve body 1; a display device 14 is fixedly mounted on the mounting bracket 13. Both the mounting bracket 13 and the display device 14 are existing and publicly known, and the display device 14 can be a flow display or a pressure display, etc.

[0022] As attached Figure 2 As shown, the connecting channel 9 has a larger inner diameter at the top and a smaller inner diameter at the bottom. From top to bottom, a sealing pair 15, a compensating spring 16, and a compensating adjusting nut 17 are sequentially installed on the upper part of the connecting channel 9. The compensating adjusting nut 17 and the inner wall of the connecting channel 9 are fixed together by threads. The upper end face of the sealing pair 15 is pressed against the lower end face of the upper valve body 1 by the compensating spring 16. The valve core 2 can be rotated via the power input shaft 4, so that the connecting channel 9 corresponds to one medium inlet channel 6 of the upper valve body 1, thereby enabling the metering or analysis of the incoming liquid from one of multiple pipelines. The sealing pair 15 is a known and commonly used type and can be a dynamic sealing ring. At the sealing position where the upper valve body 1 and the sealing pair 15 are in contact, the sealing surfaces of the sealing pair 15 and the upper valve body 1 are subjected to hard alloy overlay welding or spray welding to ensure the wear resistance of the sealing structure. Compensating spring 16 and compensating adjusting nut 17 are added at the sealing positions of sealing pair 15 and upper valve body 1 (valve cover). After a period of operation, the sealing pressure is reduced due to wear of the sealing surface. The sealing pressure is re-established on the sealing surface by adjusting the strength of compensating spring 16 to improve sealing performance.

[0023] As attached Figure 2 As shown, an input shaft adjusting nut 18, a packing bracket 19, and a sealing packing 20 are sequentially installed from top to bottom on the outer side of the middle portion of the power input shaft 4. The upper part of the input shaft adjusting nut 18 and the lower part of the display device 14 are fixedly installed together, and the lower outer side of the input shaft adjusting nut 18 and the upper inner side of the packing bracket 19 are fixedly installed together. A power input shaft bearing 21 is installed on the outer side of the power input shaft 4 between the input shaft adjusting nut 18 and the packing bracket 19. A straightening upper sleeve 22 is installed on the lower outer side of the power input shaft 4. The lower part of the packing bracket 19, the upper part of the straightening upper sleeve 22, and the sealing packing 20 are all located within the upper mounting hole 7. The position of the input shaft adjusting nut 18 within the upper mounting hole 7 can be adjusted.

[0024] As attached Figure 2As shown, a stepped mounting hole 23, wider at the top and narrower at the bottom, is provided on the inner wall of the lower valve body 3. The lower left end of the valve core 2 matches the lower mounting hole 23, and the lower left end of the valve core 2 is installed inside the lower mounting hole 23. A centering sleeve 24, a valve core bearing 25, and a centering lower sleeve 26 are sequentially installed from top to bottom on the outer side of the lower left end of the valve core 2. The lower part of the centering sleeve 24, the valve core bearing 25, and the centering lower sleeve 26 are all located inside the lower mounting hole 23. Three O-ring sealing structures can be provided at the upper and lower ends of the valve core 2, forming a piston rod seal with the centering upper sleeve 22, centering sleeve 24, and centering lower sleeve 26. The centering upper sleeve 22, centering sleeve 24, and centering lower sleeve 26 can be made of brass, serving as sliding bearings while providing centering. A sealing packing 20 is added to the upper power input shaft 4 section of valve core 2, forming a double-seal structure with the upper regulating sleeve 22 to prevent the medium inside the device from leaking out of the device through the valve core shaft hole. High-temperature resistant grease is added to valve core 2 during valve core bearing 25 installation. The middle regulating sleeve 24 and lower regulating sleeve 26 are installed to retain the grease inside the valve core bearing 25 cavity, preventing the medium and impurities in the medium from entering the valve core bearing 25 and causing it to seize. This also provides a double seal for the inner cavity and outer surface of valve core 2. Bearing structures are installed at both ends of valve core 2: the power input shaft bearing 21 and the valve core bearing 25. During device operation, these serve as the upper and lower limits for valve core 2. The use of rolling bearings effectively reduces rotational friction under high pressure, and the appropriate bearing material can be selected according to the on-site medium conditions.

[0025] As attached Figure 2 As shown, the medium inlet channel 6 is an L-shaped channel; a connecting flange 27 is fixedly connected to the outer end of the medium inlet channel 6, the outer end of the medium selection output channel 10, and the outer end of the medium centralized output port 11. The L-shaped channel facilitates connection with the corresponding connecting channel 9; the connecting flange 27 facilitates connection with external equipment. Appropriate device materials are selected according to the different media. At the bend in the medium inlet channel 6, an anti-scouring structure can be installed at the position corresponding to the valve core 2, causing the medium to form vortices during the bend and mutually canceling the counter-current forces, thereby reducing scouring wear.

[0026] The device for selecting liquid inflow from multiple pipelines in this invention mainly selects the liquid inflow from one of the multiple pipelines to enter the corresponding pipeline for measurement or analysis. The liquid inflow from the other pipelines is mixed and then transported away through the medium centralized output port 11. Sequential measurement and analysis can be completed by installing only one instrument. The power input shaft 4 of this device can be connected to an electric or pneumatic actuator to select the liquid inflow port (medium inlet channel 6) of the analysis medium.

[0027] The above technical features constitute the embodiments of the present invention, which have strong adaptability and implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A device for gating and measuring liquid inflow from multiple pipelines, characterized in that... The device includes an upper valve body, a valve core, a lower valve body, and a power input shaft. The lower end of the upper valve body and the upper end of the lower valve body are fixedly installed together, forming a sealed cavity between them. At least three medium inlet channels communicating with the sealed cavity are provided circumferentially on the upper outer side of the upper valve body. The valve core is located inside the sealed cavity. An upper mounting hole is provided on the upper end face of the upper valve body. The lower end of the power input shaft passes through the upper mounting hole and is fixedly connected to the top of the valve core. A cross-shaped flow channel is provided in the left part of the valve core, and a vertical connecting channel is provided in the right part of the valve core. The lower part of the connecting channel is connected to the right end of the flow channel, and the upper end of the connecting channel is connected to a medium inlet channel of the upper valve body at the corresponding position. A medium selection output port channel is provided in the right part of the lower valve body. The left end of the medium selection output port channel is connected to the lower end of the flow channel. A medium centralized output port communicating with the sealed cavity is provided at the left end of the lower valve body.

2. The device for selecting and measuring liquid inflow from multiple pipelines according to claim 1, characterized in that... The left end of the flow channel is connected to the sealing cavity, and a valve core inspection nut is fixedly installed at the left end of the flow channel.

3. The device for selecting and measuring liquid inflow from multiple pipelines according to claim 1 or 2, characterized in that... A mounting bracket is fixedly installed on the upper valve body; a display device is fixedly installed on the mounting bracket.

4. The device for selecting and measuring liquid inflow from multiple pipelines according to claim 1 or 2, characterized in that... The connecting channel is a channel with a larger inner diameter at the top and a smaller inner diameter at the bottom. A sealing pair, a compensating spring, and a compensating adjusting nut are installed sequentially from top to bottom on the upper part of the connecting channel. The compensating adjusting nut and the inner wall of the connecting channel are fixed together by threads. The upper end face of the sealing pair is pressed against the lower end face of the upper valve body by the compensating spring.

5. The device for selecting and measuring liquid inflow from multiple pipelines according to claim 3, characterized in that... The connecting channel is a channel with a larger inner diameter at the top and a smaller inner diameter at the bottom. A sealing pair, a compensating spring, and a compensating adjusting nut are installed sequentially from top to bottom on the upper part of the connecting channel. The compensating adjusting nut and the inner wall of the connecting channel are fixed together by threads. The upper end face of the sealing pair is pressed against the lower end face of the upper valve body by the compensating spring.

6. The device for selecting liquid inflow measurement across multiple pipelines according to claim 3, characterized in that... An input shaft adjusting nut, a packing bracket, and a sealing packing are installed sequentially from top to bottom on the outer side of the middle part of the power input shaft. The upper part of the input shaft adjusting nut and the lower part of the display device are fixedly installed together. The lower outer side of the input shaft adjusting nut and the upper inner side of the packing bracket are fixedly installed together. A power input shaft bearing is installed on the outer side of the power input shaft between the input shaft adjusting nut and the packing bracket. A straightening upper sleeve is installed on the lower outer side of the power input shaft. The lower part of the packing bracket, the upper part of the straightening upper sleeve, and the sealing packing are all located in the upper mounting hole.

7. The device for selecting and measuring liquid inflow from multiple pipelines according to claim 5, characterized in that... An input shaft adjusting nut, a packing bracket, and a sealing packing are installed sequentially from top to bottom on the outer side of the middle part of the power input shaft. The upper part of the input shaft adjusting nut and the lower part of the display device are fixedly installed together. The lower outer side of the input shaft adjusting nut and the upper inner side of the packing bracket are fixedly installed together. A power input shaft bearing is installed on the outer side of the power input shaft between the input shaft adjusting nut and the packing bracket. A straightening upper sleeve is installed on the lower outer side of the power input shaft. The lower part of the packing bracket, the upper part of the straightening upper sleeve, and the sealing packing are all located in the upper mounting hole.

8. The device for selecting liquid inflow measurement across multiple pipelines according to claim 1 or 2, characterized in that... The lower valve body has a stepped mounting hole on the inner wall of the middle part, which is larger at the top and smaller at the bottom. The lower left end of the valve core matches the mounting hole. The lower left end of the valve core is installed in the mounting hole. From top to bottom, a centering sleeve, a valve core bearing, and a centering lower sleeve are installed on the outer side of the lower left end of the valve core. The lower part of the centering sleeve, the valve core bearing, and the centering lower sleeve are all located in the mounting hole.

9. The device for selecting liquid inflow measurement across multiple pipelines according to claim 7, characterized in that... The lower valve body has a stepped mounting hole on the inner wall of the middle part, which is larger at the top and smaller at the bottom. The lower left end of the valve core matches the mounting hole. The lower left end of the valve core is installed in the mounting hole. From top to bottom, a centering sleeve, a valve core bearing, and a centering lower sleeve are installed on the outer side of the lower left end of the valve core. The lower part of the centering sleeve, the valve core bearing, and the centering lower sleeve are all located in the mounting hole.

10. The device for selecting liquid inflow measurement across multiple pipelines according to claim 1 or 2, characterized in that... The medium inlet channel is an L-shaped channel; a connecting flange is fixedly connected to the outer end of the medium inlet channel, a connecting flange is fixedly connected to the outer end of the medium selection outlet channel, and a connecting flange is fixedly connected to the outer end of the medium centralized outlet.

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