Exhaust device of down-the-hole gate
By designing an exhaust device with an exhaust channel, filter screen, and exhaust valve in the downhole gate, the problem of reduced sealing performance caused by gas retention during the opening and closing of the gate is solved, and stable operation and efficient exhaust of the gate are achieved.
Patent Information
- Application Number
- CN202520371524.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-13
- Estimated Expiration
- 2035-03-05
AI Technical Summary
During the opening and closing process, the sealing performance of the submerged gate deteriorates due to gas retention, leading to water leakage and abnormal water level fluctuations, which affects the normal operation of the water conservancy project.
Design an exhaust device for a downhole gate, including an exhaust channel, a filter screen, an exhaust valve, and a pressure sensor. The exhaust channel connects the space below and above the gate body, the filter screen blocks impurities, the exhaust valve controls the gas discharge, and the pressure sensor monitors and adjusts the opening and closing of the exhaust valve.
It effectively reduces gate vibration and noise, improves gate sealing performance and service life, optimizes venting efficiency, and prevents abnormal water level fluctuations.
Smart Images
Figure CN223793560U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of wheel hub manufacturing, and particularly relates to an exhaust device of a submerged gate. BACKGROUND
[0002] The submerged gate is widely applied in water conservancy projects such as reservoirs, river courses and channels, and is mainly used for adjusting water level, controlling flow and preventing floods and waterlogging. The working principle thereof is to control the on-off of water flow through the lifting of the gate.
[0003] However, in actual operation, when the gate is closed in the opening and closing process of the submerged gate, the water body below the gate is rapidly cut off, resulting in the formation of a closed space between the gate and the water body. Since the water body drops at a relatively fast speed, the gas in the closed space cannot be discharged in time. The gas retention causes the gate to close loosely, the sealing performance between the gate and the gate slot is reduced, thereby causing the phenomenon of water leakage. This not only reduces the water control efficiency of the gate, but also may cause abnormal fluctuations in the downstream water level, affecting the normal operation of the water conservancy project. SUMMARY
[0004] In order to reduce the influence of gas retention on the gate, the utility model provides an exhaust device of a submerged gate.
[0005] The utility model provides an exhaust device of a submerged gate, adopts the following technical scheme:
[0006] An exhaust device of a submerged gate comprises:
[0007] An exhaust passage is arranged in the interior of the gate body and is used for connecting the space below the gate body and the space above the gate body.
[0008] A filter screen is arranged at the inlet side of the exhaust passage and is used for reducing the impurities entering the exhaust passage.
[0009] An exhaust valve is arranged at one end of the exhaust passage away from the filter screen and is used for connecting the exhaust passage and the external environment.
[0010] Through the above technical scheme, in the opening and closing process of the submerged gate, the water body below the gate body is cut off to form a closed space. The exhaust passage connects the space below the gate body and the space above the gate body, so that the gas in the closed space can be discharged through the exhaust passage. The filter screen is arranged at the inlet side of the exhaust passage and is used for blocking the sand, sundries and the like from entering the exhaust passage to avoid blockage. The exhaust valve is installed at the outlet side of the exhaust passage and is used for controlling the on-off of the gas discharge.
[0011] The design of the exhaust channel effectively solves the air cushion effect caused by gas retention during the opening and closing of the gate, reducing gate vibration and noise; the filter screen prevents impurities from entering the exhaust channel, improving the reliability and service life of the device; the configuration of the exhaust valve enables controllability of gas discharge, further optimizing exhaust efficiency.
[0012] Optional, also includes:
[0013] A pressure sensor is installed inside the exhaust channel to detect the pressure inside the exhaust channel;
[0014] A control component, mounted on the gate body and electrically connected to the pressure sensor, is used to control the opening and closing of the exhaust valve.
[0015] By adopting the above technical solution, the pressure sensor monitors the gas pressure in the exhaust channel in real time and transmits the pressure data to the control component. The control component determines whether the exhaust valve needs to be opened or closed based on the pressure data. When the pressure exceeds the set threshold, the control component automatically opens the exhaust valve to release the gas; when the pressure returns to normal, the exhaust valve closes. Through intelligent control, the risk of excessively low pressure within the gate body, which could cause water pressure damage to the gate body, is reduced.
[0016] The combination of pressure sensors and control components enables automated control of the exhaust process, improving the intelligence level of the device. By monitoring and adjusting the opening and closing of the exhaust valve in real time, the exhaust efficiency is further optimized, avoiding gate vibration and sealing failure caused by excessive gas pressure.
[0017] Optionally, the filter screen protrudes towards the water inlet side of the gate body, forming an arc-shaped contact surface.
[0018] By adopting the above technical solution, the filter screen is designed as an arc-shaped contact surface that protrudes towards the water inlet side of the gate body, so that it can better conform to the water flow direction and reduce the impact of water flow on the filter screen.
[0019] The arc-shaped contact surface reduces water flow resistance, minimizes filter wear, and extends its service life. The filter's structural design improves its efficiency in intercepting impurities and further protects the exhaust channel. Simultaneously, the arc-shaped contact surface reduces debris accumulation and minimizes its impact on exhaust performance.
[0020] Optionally, the exhaust channel is inclined upward at one end near the water inlet side and is equipped with a flow valve. The flow valve is electrically connected to the control component, and the control component controls the opening and closing of the flow valve.
[0021] By adopting the above technical solution, the end of the exhaust channel near the water inlet is inclined upwards to facilitate the natural upward discharge of gas. A flow valve is installed inside the exhaust channel and is electrically connected to the control component. The control component adjusts the flow valve's opening and closing based on data from the pressure sensor to control the gas discharge flow rate.
[0022] The upward-sloping exhaust channel design conforms to the physical characteristics of natural gas rise, improving exhaust efficiency; the introduction of the flow valve enables precise control of the exhaust flow rate, avoiding gate vibration problems caused by excessively fast or slow exhaust; at the same time, the flow valve facilitates real-time monitoring of water flow, making it easy to determine whether exhaust is complete and to close the gate in a timely manner, reducing excessive water in the gate body.
[0023] Optionally, the filter screen is flexible.
[0024] By adopting the above technical solution, the filter screen is elastic and can deform under the impact of water flow, absorbing part of the impact force. The elastic filter screen can effectively alleviate the impact of water flow and reduce the risk of damage to the filter screen. The elastic design allows the filter screen to return to its original shape after being impacted, maintaining its filtration function. It can also shake up accumulated impurities to maintain the filtration effect.
[0025] Optionally, the filter screen is provided with an elastic component, the elastic component comprising:
[0026] A sealing plate is disposed on the side of the filter screen near the exhaust channel and located in the middle of the filter screen;
[0027] A connecting bracket is disposed within the exhaust channel;
[0028] The slide bar slides on the connecting frame and connects to the sealing plate;
[0029] A sliding element is disposed within the exhaust channel to drive the slide rod to slide.
[0030] By adopting the above technical solution, an elastic component is installed on the filter screen, including a sealing plate, a connecting frame, a sliding rod, and a sliding element. The sliding element drives the sliding rod to move, thereby pushing the sealing plate closer to or away from the filter screen, achieving cleaning or protection of the filter screen; the design of the elastic component realizes the automatic cleaning function of the filter screen and prevents the accumulation of impurities; through the cooperation of the sliding rod and the sliding element, the automation level of the device is improved and the manual maintenance cost is reduced.
[0031] Optionally, the slider includes:
[0032] Rotate the impeller, which is located at one end of the exhaust channel near the water inlet side;
[0033] A lever is coaxially connected to the rotating impeller, and as the rotating impeller rotates, the lever extends to the slide bar;
[0034] A baffle plate is disposed on the slide rod, and the lever contacts the outer edge of the baffle plate;
[0035] A cam is mounted on the lever and contacts the baffle. As the lever rotates, the cam separates from or contacts the baffle. When in contact, the cam pushes the baffle away from the filter screen.
[0036] By adopting the above technical solution, the sliding component includes a rotating impeller, a lever, a baffle, and a cam. The rotating impeller rotates under the action of water flow, driving the lever to rotate. The lever contacts the baffle, pushing the slide bar to move, thereby driving the sealing plate to move. The cam design makes the contact between the lever and the baffle bar smoother; the rotating impeller design utilizes water flow power to achieve automatic operation of the sliding component, eliminating the need for an external power source; the cooperation between the cam and the lever makes the movement of the slide bar smoother, improving the reliability of the device.
[0037] Optionally, an air intake section of the exhaust channel is provided near the front of the gate body on the water inlet side.
[0038] By adopting the above technical solution, multiple air intake sections with exhaust channels are set in front of the gate body near the water inlet side, allowing gas to enter the exhaust channels from multiple positions. The multi-air intake section design improves exhaust efficiency and further reduces the possibility of gas stagnation. The distribution of multiple air intake sections makes exhaust more uniform, avoiding the problem of excessive local gas pressure. It can also reduce the formation of air cushions on the water-facing side of the gate body, reduce the failure of the front seal, and improve the water sealing effect.
[0039] Optionally, a level gauge is also provided in the exhaust channel, and the level gauge is electrically connected to the control component.
[0040] By adopting the above technical solution, a level gauge is installed in the exhaust channel to monitor the liquid level. The level gauge is electrically connected to the control component. When the liquid level is too high, the control component automatically adjusts the exhaust valve or flow valve to prevent liquid from entering the exhaust channel. The introduction of the level gauge enables real-time monitoring of the liquid level in the exhaust channel, preventing backflow. The cooperation between the level gauge and the control component further improves the safety and reliability of the device. At the same time, the level gauge facilitates observation of the exhaust status of the exhaust channels at each height during the descent of each gate.
[0041] In summary, this utility model has at least one of the following beneficial technical effects:
[0042] 1. The design of the exhaust channel effectively solves the air cushion effect caused by gas retention during the opening and closing of the gate, reducing gate vibration and noise; the filter screen prevents impurities from entering the exhaust channel, improving the reliability and service life of the device; the configuration of the exhaust valve enables controllability of gas discharge, further optimizing exhaust efficiency.
[0043] 2. Multiple air intake sections with exhaust channels are set at the front of the gate body near the water inlet side, allowing gas to enter the exhaust channels from multiple positions; the multi-air intake section design improves exhaust efficiency and further reduces the possibility of gas stagnation; the distribution of multiple air intake sections makes exhaust more uniform, avoiding the problem of excessive local gas pressure; and it can reduce the formation of air cushions on the water-facing side of the gate body, reduce the failure of the front seal, and improve the water sealing effect.
[0044] 3. A level gauge is installed in the exhaust channel to monitor the liquid level. The level gauge is electrically connected to the control component. When the liquid level is too high, the control component automatically adjusts the exhaust valve or flow valve to prevent liquid from entering the exhaust channel. The introduction of the level gauge enables real-time monitoring of the liquid level in the exhaust channel, preventing liquid backflow. The cooperation between the level gauge and the control component further improves the safety and reliability of the device. At the same time, the installation of the level gauge facilitates observation of the exhaust status of the exhaust channels at each height during the descent of each gate. Attached Figure Description
[0045] Figure 1 This is a cross-sectional view of the gate in this embodiment;
[0046] Figure 2 yes Figure 1 A magnified view of a portion of region A in the middle;
[0047] Figure 3 yes Figure 1 A magnified view of a portion of region B in the middle.
[0048] Explanation of reference numerals in the attached drawings: 100, exhaust passage; 110, intake section; 120, air storage section; 200, filter screen; 300, exhaust valve; 400, flow valve; 500, elastic component; 510, sealing plate; 520, connecting frame; 530, slide bar; 540, sliding element; 541, rotating impeller; 542, lever; 543, baffle; 544, cam; 600, level gauge. Detailed Implementation
[0049] The following combination Figures 1-3 The present invention will be described in further detail below.
[0050] This embodiment discloses an exhaust device for a downhole gate.
[0051] Reference Figure 1The exhaust device of the downhole gate of the present invention mainly includes an exhaust channel 100, a filter screen 200, an exhaust valve 300, a pressure sensor, a control component, a flow valve 400, an elastic component 500, and a level gauge 600. The exhaust channel 100 connects the lower space and the upper space of the gate body. The flow valve 400 and the exhaust valve 300 are respectively installed on the exhaust channel 100 and are used to monitor the flow rate and exhaust, respectively. The filter screen 200 is installed on the exhaust channel 100 to reduce impurities entering the exhaust channel 100. The level gauge 600 is used to monitor the liquid level in the exhaust channel 100. The pressure sensor is installed on the outlet side of the exhaust channel 100 and is used to control the pressure in the exhaust channel 100. The pressure within 0 is monitored and connected to the control component via electrical signals. The control component is located within the exhaust channel 100 and is used to control the opening and closing of the exhaust valve 300 and the flow valve 400. When the gate is lowered, the gate body is raised or lowered by the opening and closing mechanism, causing the gate body to come into contact with the water. During the descent, gas is discharged through the exhaust channel 100 and the exhaust valve 300. Some gas and water flow enter the exhaust channel 100. The level gauge 600 monitors the liquid level in real time and transmits the liquid level signal to the control component. The control component controls the operation of the exhaust valve 300 and the flow valve 400. The flow valve 400 also monitors the flow rate to facilitate the identification of water and gas flow.
[0052] An exhaust channel 100 is located inside the gate body, penetrating the space below and above the gate body. The inlet end of the exhaust channel 100, near the water inlet side of the gate body, forms an air inlet section 110; the outlet end, located above the gate body, forms an air outlet section; and the middle section, located in the center of the gate body, forms an air storage section 120 with a space larger than the air inlet end 110, and is internally supported to improve the internal structural strength. The air inlet section 110 of the exhaust channel 100 is inclined upwards at an angle of 15°-30° to allow gas to rise and be discharged naturally. The inner wall of the exhaust channel 100 is coated with a wear-resistant coating to improve its service life. A flow valve 400 is located in the air inlet section 110 of the exhaust channel 100 to control the flow rate. A flow meter is installed on the exhaust channel 100 in front of the flow valve 400, and the flow valve 400 is a solenoid valve, electrically connected to the control components.
[0053] The filter screen 200 is installed on the inlet side of the water inlet section of the exhaust channel 100 by bolts or adhesive, located in front of the gate body's water inlet side. The filter screen 200 is made of elastic material and protrudes towards the gate body's water inlet side, forming an arc-shaped contact surface. The edge of the filter screen 200 is fixed to the inlet end of the exhaust channel 100 by bolts, and the middle is connected to the exhaust channel 100 by an elastic component 500. The pore size of the filter screen 200 gradually decreases from the outside to the inside to improve the filtration effect.
[0054] An exhaust valve 300 is located at the outlet end of the exhaust passage 100, connecting the exhaust passage 100 to the external environment. The exhaust valve 300 is a solenoid valve and is electrically connected to the control component. The opening and closing of the exhaust valve 300 is automatically controlled by the control component based on data from a pressure sensor.
[0055] A pressure sensor is located on the outlet side of the exhaust channel 100 and on the gate body, used to monitor the gas pressure within the exhaust channel 100 in real time. The pressure sensor is connected to the control component via a wire to transmit pressure data to the control component.
[0056] The control component is located above the gate body and is electrically connected to the pressure sensor and the exhaust valve 300. The control component includes a microprocessor and relays, used to control the opening and closing of the exhaust valve 300 based on data from the pressure sensor. When the pressure exceeds a set threshold, the control component automatically opens the exhaust valve 300; when the pressure returns to normal, the exhaust valve 300 closes.
[0057] A flow valve 400 is located at the end of the venting channel 100 near the water inlet side and is electrically connected to the control component. The flow valve 400 is used to regulate the flow rate of the discharged gas, preventing gate vibration caused by excessively fast or slow venting. The opening and closing of the flow valve 400 is automatically adjusted by the control component based on data from the pressure sensor.
[0058] Reference Figure 2 and Figure 3 ,in Figure 2 This is the state where filter screen 200 has not undergone elastic deformation. Figure 3 This refers to the state when the filter screen 200 undergoes elastic deformation. The elastic component 500 is located on the side of the filter screen 200 near the exhaust channel 100 and includes a sealing plate 510, a connecting frame 520, a slide rod 530, and a sliding member 540. The sealing plate 510 is located in the middle of the filter screen 200 and is connected to the connecting frame 520 via the slide rod 530. The connecting frame 520 is fixed to the inner wall of the exhaust channel 100. The slide rod 530 slides on the connecting frame 520 and is connected to the sealing plate 510. The sliding member 540 is located inside the exhaust channel 100 and is used to drive the slide rod 530 to move.
[0059] The sliding member 540 includes a rotating impeller 541, a lever 542, a baffle 543, and a cam 544. The rotating impeller 541 is located at one end of the exhaust channel 100 near the water inlet side and rotates under the power of water flow. The lever 542 is coaxially connected to the rotating impeller 541 and extends to the slide rod 530. The baffle 543 is located on the slide rod 530 and contacts the outer edge of the lever 542. The cam 544 is located on the lever 542 and contacts the baffle 543. It is used to push the slide rod 530 to move, and the contact surface between the cam 544 and the baffle 543 is close to the filter screen 200. The baffle 543 has a notch, and the cam 544 can rotate into the notch and separate from the baffle 543.
[0060] The level gauge 600 is located in the middle of the venting channel 100 and is electrically connected to the control component. The level gauge 600 is used to monitor the liquid level in the venting channel 100. When the liquid level is too high, the control component automatically adjusts the venting valve 300 or the flow valve 400 to prevent liquid from entering the venting channel 100.
[0061] An air intake section 110 with multiple exhaust channels 100 is provided in front of the gate body near the water inlet side. Each air intake section 110 is equipped with a filter screen 200 and is inclined upward to improve exhaust efficiency and uniformity.
[0062] During the opening and closing of the submersible gate, the water below the gate body is cut off, forming a closed space. Gas within this closed space is discharged through the exhaust channel 100. A filter screen 200 prevents silt and debris from entering the exhaust channel 100, and an exhaust valve 300 controls the flow of gas. A pressure sensor monitors the pressure within the exhaust channel 100 in real time, and the control components automatically adjust the opening and closing of the exhaust valve 300 and the flow valve 400 based on the pressure data. An elastic component 500 and a sliding element 540 provide automatic cleaning for the filter screen 200. A level gauge 600 monitors the liquid level within the exhaust channel 100 to prevent backflow.
[0063] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A venting device for a downhole gate, characterized in that: include: An exhaust channel (100) is located inside the gate body and is used to connect the lower and upper spaces of the gate body; A filter screen (200) is provided on the inlet side of the exhaust channel (100) to reduce the entry of impurities into the exhaust channel (100); An exhaust valve (300) is located at one end of the exhaust passage (100) away from the filter screen (200) and is used to connect the exhaust passage (100) to the external environment.
2. The exhaust device for the downhole gate according to claim 1, characterized in that: Also includes: A pressure sensor is installed in the exhaust channel (100) to detect the pressure in the exhaust channel (100); A control component, mounted on the gate body and electrically connected to the pressure sensor, is used to control the opening and closing of the exhaust valve (300).
3. The exhaust device for the downhole gate according to claim 2, characterized in that: The filter screen (200) protrudes towards the water inlet side of the gate body, forming an arc-shaped contact surface.
4. The exhaust device for the downhole gate according to claim 2, characterized in that: The exhaust channel (100) is inclined upward at one end near the water inlet side and is provided with a flow valve (400). The flow valve (400) is electrically connected to the control component, and the control component controls the opening and closing of the flow valve (400).
5. The exhaust device for the downhole gate according to claim 2, characterized in that: The filter screen (200) is flexible.
6. The exhaust device for the downhole gate according to claim 4, characterized in that: The filter screen (200) is provided with an elastic component (500), the elastic component (500) comprising: A sealing plate (510) is disposed on the side of the filter screen (200) near the exhaust channel (100) and located in the middle of the filter screen (200); A connecting bracket (520) is disposed within the exhaust channel (100); The slide bar (530) slides on the connecting frame (520) and is connected to the sealing plate (510); A sliding member (540) is disposed in the exhaust channel (100) and is used to drive the sliding rod (530) to slide.
7. The exhaust device for a downhole gate according to claim 6, characterized in that: The slider (540) includes: Rotate the impeller (541), which is located at one end of the exhaust channel (100) near the water inlet side; The lever (542) is coaxially connected to the rotating impeller (541), and as the rotating impeller (541) rotates, the lever (542) extends to the slide bar (530); A baffle (543) is disposed on the slide bar (530), and the lever (542) contacts the outer edge of the baffle (543); A cam (544) is disposed on the lever (542) and contacts the baffle (543). As the lever (542) rotates, the cam separates from or contacts the baffle (543). When in contact, the cam pushes the baffle (543) away from the filter screen (200).
8. The venting device for a downhole gate according to any one of claims 1-7, characterized in that: The gate body is provided with an air intake section (110) of multiple exhaust channels (100) near the front of the water inlet side.
9. The exhaust device for a downhole gate according to claim 2, characterized in that: A level gauge (600) is also provided in the exhaust channel (100), and the level gauge (600) is electrically connected to the control component.