Adjustable rotating hinge water seal device and adjusting method

Abstract

The invention provides an adjustable rotating hinge water seal device and an adjusting method, the adjustable rotating hinge water seal device comprises a water seal seat, a rotating hinge body is arranged on the water seal seat, and the rotating hinge body is rotatably connected with the water seal seat through a hinge shaft; a spring pre-tightening mechanism is arranged between the top end of the rotating hinge body and the water seal base and used for providing pre-tightening force for the rotating hinge body. A water seal rubber and a water seal pressing plate are arranged between the other end of the rotating hinge body and the gate panel, and the water seal pressing plate, the water seal rubber and the rotating hinge body are fixed through bolts and nuts. The adjustable rotating hinge water seal device is installed on a lintel of a gate groove of an arc-shaped gate and makes contact with a gate panel to form a sealing body, the reliable water sealing effect is achieved, the water jetting phenomenon in the gate opening and closing operation process is avoided, a vibration source enabling the gate to vibrate is reduced, the operation environment of equipment is improved, and the service life of the equipment is prolonged. And the reliability and the safety of equipment operation are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of gate water seals, and in particular relates to an adjustable hinge water seal device and method, which is suitable for stopping water from the top during the opening and closing operation of deep hole arc gates in hydropower projects, and can prevent water from being ejected from the top during the opening and closing process of the gate. Background Art

[0002] In hydropower projects, deep-hole arc gates have flat gate grooves and good flow conditions, which can reduce cavitation caused by high-speed water flow. They are the most common deep-hole flood discharge facilities. During the opening and closing process of the gate, the water seal set on the top of the gate is separated from the gate groove, and relative movement occurs between the arc gate panel and the gate groove. The pressurized water flow in the flow channel can easily produce a jet phenomenon between the gate leaf and the gate groove. In order to ensure the water sealing effect of the gate, a hinge water seal is usually set at the lintel of the gate groove to connect the gap between the gate groove and the gate leaf panel to avoid reducing the jet. Since the gate panel moves during the opening process, the hinge water seal set in the past, in order to balance the relationship between water pressure and preload, avoid excessive water pressure and cause scratches between steel structures and gate leaves, the compression amount of the rubber is generally preset in the manufacturer, which is difficult to adjust during on-site installation. In actual operation, jets will still occur during the opening and closing process of the gate. Summary of the invention

[0003] The first object of the present invention is to provide a swivel hinge water seal device.

[0004] To this end, the above-mentioned purpose of the present invention is achieved through the following technical solutions:

[0005] An adjustable hinge water seal device comprises a water seal seat, a hinge body is arranged on the water seal seat, the middle part of the hinge body is rotatably connected with the water seal seat via a hinge shaft, and is supported at multiple points; the hinge body is the integral structure of the water seal support, and an arc structure suitable for water seal steering is arranged at the end;

[0006] A spring pre-tightening mechanism is provided between the top end of the rotating hinge body and the water seal seat, and the spring pre-tightening mechanism is used to provide a pre-tightening force to the rotating hinge body;

[0007] A water seal rubber and a water seal pressure plate are arranged between the other end of the rotating hinge body and the gate panel. The water seal pressure plate, the water seal rubber and the rotating hinge body are fixed by bolts and nuts, and the water seal rubber and the pressure plate are glued.

[0008] While adopting the above technical solutions, the present invention may also adopt or combine the following technical solutions:

[0009] As a preferred technical solution of the present invention: the water seal seat includes a base plate, a rib plate, a water seal mounting plate, and a pre-tightening mechanism mounting plate, one side of the rib plate is mounted on the base plate, the other side of the rib plate is mounted on the water seal mounting plate, and a pre-tightening mechanism mounting plate is provided on the top of the rib plate;

[0010] The rib plate is provided with a hinge shaft mounting hole, and the pre-tightening mechanism mounting plate is provided with a pre-tightening mechanism mounting hole.

[0011] As a preferred technical solution of the present invention: an external thread is provided on the outer side of the mounting hole of the pre-tightening mechanism.

[0012] As a preferred technical solution of the present invention: the spring preload mechanism comprises a pressure cover, a spring, an adjustment pad and a pre-matched positioning pin, and at least one adjustment pad is provided between the inner side of the pressure cover and the top of the spring;

[0013] The positioning pin is installed to the top of the hinge body, one end of the spring is sleeved on the positioning pin, the spring is located between the pressure cover and the top of the hinge body, and the pressure cover cooperates with the water seal seat to compress the spring to provide pre-tightening force to the hinge body.

[0014] As a preferred technical solution of the present invention: the inner side of the pressure cover has an internal thread, the water seal seat is provided with a pre-tightening mechanism mounting plate, the pre-tightening mechanism mounting plate is provided with a pre-tightening mechanism mounting hole, and the outer side of the pre-tightening mechanism mounting hole is provided with an external thread.

[0015] As a preferred technical solution of the present invention: there is a certain gap between the side of the positioning pin shaft and the spring.

[0016] As a preferred technical solution of the present invention: the horizontal rubber is a rubber plate structure with a semicircular head and a step structure, the end semicircle and its accessories are provided with a polytetrafluoroethylene patch for reducing friction, the step is glued to the water seal pressure plate during installation, and the sealing effect of the water seal is ensured after the water seal is installed.

[0017] Another object of the present invention is to provide a method for adjusting the above-mentioned adjustable hinge water seal device.

[0018] To this end, the above-mentioned purpose of the present invention is achieved through the following technical solutions:

[0019] The adjustment method of the adjustable hinge water seal device as described above comprises the following steps:

[0020] S1. Determine the pre-compression force requirement: Determine the pre-compression force range required for the water seal rubber according to the gate panel material, size, and water pressure;

[0021] S2. Install and fix the water seal rubber: fix the water seal rubber on the water seal seat and the hinge body through the water seal pressure plate;

[0022] S3. Choose the right spring: Choose a spring with appropriate elasticity and strength to ensure that it can provide the required pre-compression force;

[0023] S4. Install the spring and adjustment pad: Install the spring on the hinge body and place an appropriate amount of adjustment pad under the gland;

[0024] S5. Preliminary adjustment of pre-compression force: Preliminary adjustment of the spring compression by increasing or decreasing the number of adjustment pads under the pressure relief cover, so that the water seal rubber reaches the required pre-compression force;

[0025] S6. Debugging and fine-tuning: Observe the contact of the water seal rubber during the gate opening and closing process without water, and fine-tune the compression of the spring or the number of adjustment pads according to the actual situation until the optimal pre-compression force is reached;

[0026] S7. Adaptive adjustment: Observe the sealing condition of the water seal rubber during the gate opening and closing process to see if water jetting occurs. According to the water jetting condition during operation, adjust the number of pads after closing the gate to adapt to the impact of water pressure loading on gate operation.

[0027] S8. Regular inspection and maintenance: Regularly check the sealing effect of the water seal, check the rust of the spring and the gland, and replace or adjust them when necessary to ensure that the pre-compression force of the water seal rubber is always maintained in the best condition.

[0028] The new corner water seal proposed by the present invention redesigns the entire water seal structure, adjusts the width of the water seal that can withstand water pressure, and controls the water seal compression load; adjusts the water seal body structure to optimize the pressure-bearing section of the water seal; adopts the lever principle, so that the position of the water seal and the gate panel set on the hinge body can be easily adjusted on site, ensuring the preload of the water seal in contact with the panel, and can automatically follow the front and back changes of the panel position, with strong adaptability, and improve the water sealing effect of the hinge water seal. The adjustable hinge water seal device is installed on the lintel of the arc gate slot, and contacts the gate panel to form a sealing body, achieving a reliable water sealing effect, avoiding the occurrence of water jetting during the gate opening and closing operation, reducing a vibration source that causes the gate to vibrate, improving the operating environment of the equipment, and increasing the reliability and safety of the equipment operation. Its application in engineering has good economic and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a cross-sectional view of the adjustable hinge water seal device provided by the present invention.

[0030] Figure 2 This is a cross-sectional view of the water seal seat.

[0031] In the above figure: 1-pressure cover, 2-adjustment pad, 3-stainless steel spring, 3a-positioning pin, 4-hinge shaft, 5-water seal seat, 6-bolt, 7-nut, 8-water seal rubber, 9-hinge body, 10-water seal pressure plate, 51-base plate, 52-rib plate, 53-water seal mounting plate, 54-, preload mechanism mounting plate, 521-hinge shaft mounting hole, 541-preload mechanism mounting hole. DETAILED DESCRIPTION

[0032] The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] An adjustable hinge water seal device is installed at the lintel of the gate slot of a submerged arc gate, and is composed of a gland 1, an adjustment pad 2, a stainless steel spring 3, a hinge shaft 4, a water seal seat 5, bolts 6, nuts 7, a water seal rubber 8, a hinge body 9, and a water seal pressure plate 10. The hinge body 9 is installed on the water seal seat through the hinge shaft 4, and the water seal rubber 8 is fixed through the water seal pressure plate 10 and connected to the water seal seat 5 and the hinge body by bolts 6 and nuts 7. The stainless steel spring 3 is installed on the hinge body 9, and the pre-pressure of the downward pressure is adjusted by adjusting the pad 2 and the gland 1, and the hinge body 9 is rotated by the hinge shaft 4 to turn the downward pressure acting on the hinge body 9. It acts on the water seal rubber 8 to achieve the pre-pressure between the water seal rubber 8 and the gate panel. The lever steering principle is applied to adjust the number of adjustment pads 2 under the pressure cover 1 to achieve the adjustment of the pre-compression force of the water seal rubber 8. At the same time, when the gate arm is subjected to the water pressure load and produces compressive elastic deformation, the door leaf panel retreats as a whole under the action of water pressure. Through the energy storage effect of the stainless steel spring 3, the water level contact position is automatically followed. The compressive load of the water seal rubber 8 is compensated by the water pressure, which ensures the reliable contact between the water seal rubber 8 and the door leaf panel, and has a certain pre-pressure, so as to achieve the reliable sealing effect of the hinge water seal.

[0034] The water seal seat 5 includes a base plate 51, a rib plate 52, a water seal mounting plate 53, and a pre-tightening mechanism mounting plate 54. One side of the rib plate 52 is mounted on the base plate 51, and the other side of the rib plate 52 is mounted on the water seal mounting plate 53. The top of the rib plate 52 is provided with a pre-tightening mechanism mounting plate 54. The rib plate 52 is provided with a hinge shaft mounting hole 521, and the pre-tightening mechanism mounting plate 54 is provided with a pre-tightening mechanism mounting hole 541. The outer side of the pre-tightening mechanism mounting hole 541 is provided with an external thread, which matches the internal thread on the inner side of the gland 1.

[0035] The hinge body 9 is the main transmission structure, and the rotating structure is arranged asymmetrically. The factory-made shape of the water seal rubber 8 is determined by the continuous bending steel plate on the hinge body 9, and the steel plate is also a part of the water seal seat plate.

[0036] The pre-stress load on the hinge body 9 is realized by a pre-stress spring (stainless steel spring 3), and the pre-stress contact between the water seal rubber 8 and the gate panel is realized by the rotational displacement of the hinge body 9.

[0037] The preload of the stainless steel spring 3 is achieved by combining a pressure cover 1 and an adjustment pad 2.

[0038] The water seal rubber 8 is provided with a step, and can be assembled through the water seal pressure plate 10 to bear the water seal pre-pressure.

[0039] A gap is left between the stainless steel spring 3 and the positioning pin shaft 3a to meet the need for the hinge body 9 to shift after tilting.

[0040] The present invention also provides a method for adjusting the above-mentioned adjustable hinge water seal device, comprising the following steps:

[0041] S1. Determine the pre-compression force requirement: Determine the pre-compression force range required for the water seal rubber according to the gate panel material, size, and water pressure;

[0042] S2. Install and fix the water seal rubber: fix the water seal rubber on the water seal seat and the hinge body through the water seal pressure plate;

[0043] S3. Choose the right spring: Choose a spring with appropriate elasticity and strength to ensure that it can provide the required pre-compression force;

[0044] S4. Install the spring and adjustment pad: Install the spring on the hinge body and place an appropriate amount of adjustment pad under the gland;

[0045] S5. Preliminary adjustment of pre-compression force: Preliminary adjustment of the spring compression by increasing or decreasing the number of adjustment pads under the pressure relief cover, so that the water seal rubber reaches the required pre-compression force;

[0046] S6. Debugging and fine-tuning: Observe the contact of the water seal rubber during the gate opening and closing process without water, and fine-tune the compression of the spring or the number of adjustment pads according to the actual situation until the optimal pre-compression force is reached;

[0047] S7. Adaptive adjustment: Observe the sealing condition of the water seal rubber during the gate opening and closing process to see if water jetting occurs. According to the water jetting condition during operation, adjust the number of pads after closing the gate to adapt to the impact of water pressure loading on gate operation.

[0048] S8. Regular inspection and maintenance: Regularly check the sealing effect of the water seal, check the rust of the spring and the gland, and replace or adjust them when necessary to ensure that the pre-compression force of the water seal rubber is always maintained in the best condition.

[0049] The above-mentioned specific implementation methods are used to explain the present invention and are only preferred embodiments of the present invention, rather than limiting the present invention. Any modifications, equivalent substitutions, improvements, etc. made to the present invention within the spirit of the present invention and the protection scope of the claims shall fall within the protection scope of the present invention.

Claims

1. An adjustable hinge water seal device, comprising a water seal seat, characterized in that: The water seal seat is provided with a rotating hinge body, the middle of the rotating hinge body is rotatably connected to the water seal seat via a hinge shaft; the rotating hinge body is the integral structure of the water seal support, and the end thereof is provided with an arc structure suitable for water seal steering; A spring pre-tightening mechanism is provided between the top end of the rotating hinge body and the water seal seat, and the spring pre-tightening mechanism is used to provide a pre-tightening force to the rotating hinge body; A water seal rubber and a water seal pressure plate are arranged between the other end of the rotating hinge body and the gate panel. The water seal pressure plate, the water seal rubber and the rotating hinge body are fixed by bolts and nuts, and the water seal pressure plate and the horizontal rubber are glued.

2. The adjustable hinge water seal device according to claim 1, characterized in that: The water seal seat comprises a base plate, a rib plate, a water seal mounting plate, and a pre-tightening mechanism mounting plate. One side of the rib plate is mounted on the base plate, and the other side of the rib plate is mounted on the water seal mounting plate. The top of the rib plate is provided with a pre-tightening mechanism mounting plate. The rib plate is provided with a hinge shaft mounting hole, and the pre-tightening mechanism mounting plate is provided with a pre-tightening mechanism mounting hole.

3. The adjustable hinge water seal device according to claim 2, characterized in that: An external thread is arranged on the outer side of the pre-tightening mechanism mounting hole.

4. The water seal rubber according to claim 1, characterized in that: The horizontal rubber is a rubber plate structure with a semicircular head and a step structure. The step is glued to the water seal pressure plate during installation, and the sealing effect of the water seal is ensured after the water seal is installed.

5. The adjustable hinge water seal device according to claim 1, characterized in that: The spring preload mechanism comprises a pressure cover, a spring, an adjustment pad and a pre-matched positioning pin, and at least one adjustment pad is provided between the inner side of the pressure cover and the top of the spring; The positioning pin is installed to the top of the hinge body, one end of the spring is sleeved on the positioning pin, the spring is located between the pressure cover and the top of the hinge body, and the pressure cover, adjustment pad and water seal seat cooperate to compress the spring to provide pre-tightening force to the hinge body.

6. The adjustable hinge water seal device according to claim 5, characterized in that: The inner side of the gland is provided with an internal thread, the water seal seat is provided with a pre-tightening mechanism mounting plate, the pre-tightening mechanism mounting plate is provided with a pre-tightening mechanism mounting hole, and the outer side of the pre-tightening mechanism mounting hole is provided with an external thread.

7. The adjustable hinge water seal device according to claim 5, characterized in that: There is a certain gap between the side of the positioning pin shaft and the spring.

8. The method for adjusting the adjustable hinge water seal device according to any one of claims 1 to 7, characterized in that: The method comprises the following steps: S1. Determine the pre-compression force requirement: Determine the pre-compression force range required for the water seal rubber according to the gate panel material, size, and water pressure; S2. Install and fix the water seal rubber: fix the water seal rubber on the water seal seat and the hinge body through the water seal pressure plate; S3. Choose the right spring: Choose a spring with appropriate elasticity and strength to ensure that it can provide the required pre-compression force; S4. Install the spring and adjustment pad: Install the spring on the hinge body and place an appropriate amount of adjustment pad under the gland; S5. Preliminary adjustment of pre-compression force: Preliminary adjustment of the spring compression by increasing or decreasing the number of adjustment pads under the pressure relief cover, so that the water seal rubber reaches the required pre-compression force; S6. Debugging and fine-tuning: Observe the contact of the water seal rubber during the gate opening and closing process without water, and fine-tune the compression of the spring or the number of adjustment pads according to the actual situation until the optimal pre-compression force is reached; S7. Adaptive adjustment: Observe the sealing condition of the water seal rubber during the gate opening and closing process to see if water jetting occurs. According to the water jetting condition during operation, adjust the number of pads after closing the gate to adapt to the impact of water pressure loading on gate operation. S8. Regular inspection and maintenance: Regularly check the sealing effect of the water seal, check the rust of the spring and the gland, and replace or adjust them when necessary to ensure that the pre-compression force of the water seal rubber is always maintained in the best condition.

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