Sealing isolation door and thermal power generation equipment
By using a compression assembly in the sealing isolation door to generate a gradually increasing compression force, ensuring that the second surface of the gate is tightly pressed at the port of the first pipe, the problem of fluid leakage on the high-pressure side is solved and efficient sealing effect is achieved .
Patent Information
- Application Number
- CN202420444997.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-08
- Publication Date
- 2025-02-21
- Estimated Expiration
- 2034-03-08
AI Technical Summary
When there is a pressure difference on both sides of the gate, the fluid on the high-pressure side is prone to leakage, especially under high temperature, high pressure and aging factors, the thickness of the seal is reduced, and the leakage phenomenon is more obvious in vibration environments.
A sealed and insulating door is designed, employing a pressing assembly including a first pressing member fixed to the first surface and a second pressing member fixed to the bracket, contacting through the pressing profile and generating a gradually increasing pressing The force ensures that the second surface of the gate is tightly pressed at the port of the first pipe.
It effectively balances the impact of high-pressure fluid on the second surface of the gate, realizes sealing of the first pipeline port under a single-sided high-pressure situation, and reduces leakage.
Smart Images
Figure CN222513737U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sealing devices, in particular to a sealed isolation door and thermal power generation equipment. Background Art
[0002] The gate-type sealing device generally includes a bracket, a gate and a drive assembly. Two parallel slide rails are arranged on the bracket, and the gate slides in the gap between the two slide rails. The drive assembly is used to drive the gate to slide along the gap. To ensure smooth sliding, the gap width should be greater than the thickness of the gate. In areas with special requirements for sealing, seals (such as packing) need to be arranged on one or both sides of the gate to contact the gate when the gate slides. However, when there is a large pressure difference on both sides of the gate, under the push of the high-pressure side fluid, the gate will separate from the slide rail and seal on the high-pressure side during the process of moving to the low-pressure side in the gap, causing the high-pressure fluid to leak. Especially when the thickness of the seal is reduced due to factors such as high temperature, high pressure and aging, and when there is a large vibration in the environment, the leakage phenomenon is more obvious.
[0003] For example, in the process of thermal power generation, it is usually necessary to use a coal feeder to transport coal to the coal mill. The coal mill grinds the coal into coal powder, and then sprays it into the combustion chamber of the coal combustion furnace together with the air preheated by the preheater for combustion. Therefore, the air in the coal mill is hot air with a high temperature and a certain pressure. The feed bin of the coal feeder is connected to the coal mill through a hot air pipeline, and a coal gate is usually provided on the hot air pipeline. A packing is provided on each side of the coal gate, and the packing is sealed by sliding contact. When the coal mill needs to add coal, the coal gate can be opened to allow the coal to fall from the feed bin to the combustion chamber. When the coal mill does not need to add coal, the coal gate can be closed to block the transportation of coal. In addition to isolating coal materials, the coal gate is also used to isolate hot air. When the coal feeder is repaired, the coal gate needs to isolate the hot air to prevent the hot air generated by the preheater from flowing into the coal feeder and injuring the maintenance personnel. In the prior art, a limiting structure is usually provided on the low-pressure side of the gate. The limiting structure can only limit the position of the gate after the gate moves, and cannot apply a pre-pressure to the gate to prevent the gate from moving. Utility Model Content
[0004] The utility model aims to provide a sealed isolation door and thermal power generation equipment to solve the problems existing in the above-mentioned prior art and to improve the sealing effect on the high-pressure side when there is a pressure difference on both sides of the gate.
[0005] To achieve the above purpose, the utility model provides the following solutions:
[0006] The utility model discloses a sealed isolation door, which can at least seal the end of a first pipeline, comprising a gate, a driving device and a bracket; two opposite surfaces on the gate are respectively a first surface and a second surface; the second surface is used to close the first pipeline in a sealed position and at least partially open the first pipeline in an open position; the driving device is installed on the bracket and connected to the gate to drive the gate to move between the sealed position and the open position;
[0007] The sealed isolation door also includes a pressing assembly;
[0008] The clamping assembly includes a first clamping member fixed on the first surface, and a second clamping member fixed on the bracket; the first clamping member and the second clamping member each have a pressure-applying profile; during the movement of the gate from the open position to the sealed position, the first clamping member and the second clamping member contact through the pressure-applying profile, and a gradually increasing clamping force is generated between the two, so that the second surface is pressed against the port of the first pipe through the clamping force.
[0009] Preferably, the first pressing member and the second pressing member are in sliding contact.
[0010] Preferably, the driving device is a hydraulic cylinder, which is connected to the gate via a piston rod, and when liquid flows into the rod chamber of the hydraulic cylinder, the gate moves toward the sealing position, and when liquid flows into the rodless chamber of the hydraulic cylinder, the gate moves toward the open position.
[0011] Preferably, one of the pressure-applying profiles is an inclined plane, and the inclined plane is arranged obliquely relative to the second surface; and the other pressure-applying profile is a curved surface.
[0012] Preferably, the two pressure-applying profiles are both inclined planes, and the inclined planes are arranged to be inclined relative to the second surface; and the inclination angles of the two inclined planes are the same.
[0013] Preferably, both of the two pressure-applying profiles are curved surfaces.
[0014] Preferably, one of the pressure-applying profiles is a rolling surface of a circular rolling element, and the other pressure-applying profile is an inclined plane or a curved surface.
[0015] Preferably, one of the pressure-applying profiles is a rolling surface of a circular rolling element, and the other pressure-applying profile is a combination of a parallel plane and an inclined plane; the parallel plane is parallel to the second surface, and the inclined plane is inclined relative to the second surface;
[0016] The circular rolling element is elastically deformable, so that when the gate moves toward the sealing position, the circular rolling element passes through the inclined plane and the parallel plane in sequence, so that the clamping force between the first clamping element and the second clamping element first gradually increases and then remains unchanged.
[0017] Preferably, the circular rolling element can be elastically displaced so that when the gate moves toward the sealing position, the circular rolling element passes through the inclined plane and the parallel plane in sequence, so that the clamping force between the first clamping element and the second clamping element first gradually increases and then remains unchanged.
[0018] Preferably, the sealed isolation door further comprises the first pipeline;
[0019] The first pipe includes a first tubular body, a first mounting assembly and a first sealing member; the first tubular body is mounted on the bracket, the first tubular body has a first pipe end facing the second surface, and the first mounting assembly mounts the first sealing member on the first pipe end; the first sealing member is annular and is used to seal the gap between the first pipe end and the second surface of the gate in the sealing position.
[0020] Preferably, the first sealing member is sleeved on the outside of the first pipe end, and the first mounting assembly is a first clamp, which enables the first sealing member to be in close contact with the first tubular body.
[0021] Preferably, the sealed isolation door further comprises a first adjusting component, which is mounted on the bracket and located on a side of the first sealing member facing away from the gate; the first adjusting component is used to push the first sealing member toward the gate.
[0022] Preferably, the first adjustment assembly includes a first annular member and a first pushing member; the first annular member is used to contact the side of the first sealing member away from the gate so that the parts of the first sealing member move synchronously toward the gate; the first pushing member is used to push the first annular member toward the gate.
[0023] Preferably, the first pushing member is a threaded member with external threads, and the first pushing member is directly or indirectly mounted on the bracket.
[0024] Preferably, the sealed isolation door further comprises a second pipeline;
[0025] The second pipe includes a second tubular body, a second mounting assembly and a second sealing member; the second tubular body is mounted on the bracket, and the second tubular body has a second pipe end facing the first surface; the second mounting assembly mounts the second sealing member on the second pipe end, and the second sealing member is annular and is used to seal the gap between the second pipe end and the first surface of the gate in the sealing position.
[0026] Preferably, the bracket is box-shaped, comprising a pair of box side covers, a pair of box end covers and a pair of box surface covers;
[0027] The gate is located on the inner side of the bracket; the driving end of the driving device passes through one of the box body end covers and is connected to the gate; the second pressing member is installed on the box body side cover; the first tubular body passes through one box body surface cover, and the second tubular body passes through the other box body surface cover, and the first sealing member and the second sealing member are both located between the two box body surface covers.
[0028] Preferably, the box body end cover on which the driving device is not installed is installed in a detachable manner, so that after the box body end cover is removed, the gate can be pushed out of the bracket by the driving device; the gate is detachably connected to the driving end of the driving device, so that after the gate is removed and pushed out, it can be automatically separated from the gate by the contraction of the driving device.
[0029] Preferably, all or part of at least one of the box body surface covers is a detachable structure, so that after all or part of the box body surface cover is detached, the components inside the bracket can be maintained.
[0030] Preferably, the first tubular body is connected to a pair of the box body side covers and one of the box body surface covers respectively through a first flange, and the second tubular body is connected to a pair of the box body side covers and the other box body surface cover respectively through a second flange; the first tubular body and the second tubular body are both connected to the box body side covers through reinforcing ribs.
[0031] Preferably, the sealed isolation door also includes a support member; the support member is installed on the bracket and is used to support the second surface to guide and limit the gate; the support members are arranged on both lateral sides of the gate to simultaneously support the two lateral sides of the gate.
[0032] Preferably, the support member is a roller or a slide rail.
[0033] Preferably, there are multiple groups of the clamping assemblies, and at least one group of the clamping assemblies is arranged on both sides of the gate to apply pressure to both sides of the gate simultaneously.
[0034] Preferably, the sealed isolation door also includes a guide rod, a guide mark and a ruler; the guide rod and the ruler are parallel to each other and arranged adjacent to each other, and the guide rod is parallel to the moving direction of the gate; the guide rod is installed on the gate, the guide mark is installed on the guide rod, the guide mark points to the scale line of the ruler, and the ruler is installed on the bracket.
[0035] Preferably, a through hole is provided on the gate; when the gate is in the open position, the through hole is at least partially opposite to the port of the first pipeline; when the gate is in the sealed position, the through hole is staggered with the port of the first pipeline.
[0036] The utility model also discloses a thermal power generation device, comprising the sealed isolation door.
[0037] Compared with the prior art, the utility model has achieved the following technical effects:
[0038] During the movement of the gate from the open position to the sealed position, the first pressing member and the second pressing member contact each other through the pressure-applying surface, and a gradually increasing pressing force is generated between the two. The pressing force presses the second surface of the gate against the port of the first pipeline to balance the impact of the high-pressure fluid on the second surface of the gate, thereby achieving sealing of the first pipeline port under unilateral high pressure. BRIEF DESCRIPTION OF THE DRAWINGS
[0039] In order to more clearly illustrate the embodiments of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0040] Figure 1 This is a structural schematic diagram of a sealed isolation door according to an embodiment of the utility model;
[0041] Figure 2 for Figure 1 A schematic diagram after omitting the first panel and the second panel;
[0042] Figure 3 is a schematic diagram of the pressure-applying profile in Example A2;
[0043] Figure 4 is a schematic diagram of the pressure-applying profile in Example A3;
[0044] Figure 5 is a schematic diagram of the pressure-applying profile in Example A4;
[0045] Figure 6 is a schematic diagram of the pressure-applying profile in Example B1;
[0046] Figure 7 is a schematic diagram of the pressure-applying profile in Example B2;
[0047] Figure 8 is a schematic diagram of the pressure-applying profile in Example B3;
[0048] Fig. 9 This is a schematic diagram of a sealed isolation door in a top view according to an embodiment of the utility model;
[0049] Fig.10 for Fig. 9 Sectional view of section AA;
[0050] Fig.11 for Fig.10 A partial enlarged view of
[0051] Fig.12 This is a schematic diagram of the sealed isolation door of the utility model embodiment after omitting one end cover of the box body;
[0052] Fig.13 This is a schematic diagram of the gate structure.
[0053] Description of reference numerals: 10 - sealed isolation door; 100 - gate; 200 - driving device; 300 - bracket; 400 - pressing assembly; 500 - first pipeline; 600 - second pipeline; 700 - first adjustment assembly; 800 - second adjustment assembly; 900 - support member;
[0054] 110-closed section; 120-connecting section; 121-round hole; 130-guide rod; 131-guide mark; 210-piston rod; 310-box side cover; 320-box end cover; 321-ruler; 322-angle steel; 330-box surface cover; 331-cross bar; 332-first panel; 333-second panel; 410-first pressing member; 420-second pressing member; 430-pressure profile; 440-spring ; 510-first tubular body; 520-first clamp; 530-first sealing member; 540-first flange; 610-second tubular body; 620-second clamp; 630-second sealing member; 640-second flange; 641-connecting plate; 642-partial connecting ring; 650-reinforcing rib; 710-first annular member; 720-first pushing member; 810-second annular member; 820-second pushing member. DETAILED DESCRIPTION
[0055] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0056] Reference Figures 1 to 13 The present embodiment provides a sealed isolation door 10, which can at least seal the end of the first pipe 500, including a gate 100, a driving device 200 and a bracket 300. The two opposite surfaces on the gate 100 are respectively a first surface and a second surface. The second surface is used to close the first pipe 500 in the sealed position and at least partially open the first pipe 500 in the open position. The driving device 200 is installed on the bracket 300 and connected to the gate 100 to drive the gate 100 to move between the sealed position and the open position. The driving device 200 can be driven by various driving modes such as electric, hydraulic, electro-hydraulic, pneumatic, manual, etc., and those skilled in the art can choose according to actual needs.
[0057] When the sealed isolating door 10 is in use, the pressure on the side where the second surface is located is continuously or intermittently higher than the pressure on the side where the first surface is located, so the side where the second surface is located is called the high-pressure side, and the side where the first surface is located is called the low-pressure side. The first pipeline 500 can be a pipe joint as an intermediate connector, or it can be a longer pipeline for conveying materials, and the second pipeline 600 mentioned below is the same. It can be understood that in order to achieve the sealing of the end of the first pipeline 500, the shape of the second surface should be adapted to the end of the first pipeline 500. In this embodiment, the end of the first pipeline 500 is planar, and the second surface is also planar.
[0058] The sealed insulating door 10 of the present embodiment further includes a pressing assembly 400 for providing a pressing force to press the gate 100 toward the high-pressure side.
[0059] The clamping assembly 400 includes a first clamping member 410 fixed to the first surface, and a second clamping member 420 fixed to the bracket 300. The first clamping member 410 and the second clamping member 420 both have a pressure profile 430. During the movement of the gate 100 from the open position to the sealed position, the first clamping member 410 and the second clamping member 420 contact each other through the pressure profile 430, and a gradually increasing clamping force is generated between the two, so that the second surface is pressed against the port of the first pipe 500 by the clamping force.
[0060] The first pressing member 410 and the second pressing member 420 may be in sliding contact or rolling contact, as long as they can press each other so that the first pressing member 410 is subjected to a reaction force that presses it toward the gate 100. This reaction force may be inclined relative to the second surface or perpendicular to the second surface.
[0061] In some examples, the first pressing member 410 and the second pressing member 420 are in sliding contact:
[0062] Example A1: The driving device 200 is a hydraulic cylinder, which is connected to the gate 100 through a piston rod 210. When liquid flows into the rod chamber of the hydraulic cylinder, the gate 100 moves to the sealing position, and when liquid flows into the rodless chamber of the hydraulic cylinder, the gate 100 moves to the open position.
[0063] Due to the presence of the piston rod 210 in the rod chamber of the hydraulic cylinder, the effective action area of the piston in the rod chamber is smaller than its effective action area in the rodless chamber. If the pressures of the rod chamber and the rodless chamber are the same when liquid is introduced, the force applied to the piston when liquid is introduced into the rodless chamber is greater. In this example, when liquid is introduced into the rod chamber, the relatively smaller force applied by the oil on the piston causes the gate 100 to reach the sealing position. When liquid is introduced into the rodless chamber, the relatively larger force applied by the oil on the piston causes the gate 100 to leave the sealing position. By pushing the gate 100 away from the sealing position with a relatively larger force, the gate 100 is prevented from being locked in the sealing position. The number of hydraulic cylinders can be flexibly selected according to actual needs.
[0064] Example A2: Reference Figure 3 One of the pressure-applying profiles 430 is an inclined plane, which is inclined relative to the second surface. The other pressure-applying profile 430 is a curved surface, such as a cylindrical surface, an elliptical cylindrical surface (formed by a straight line moving along an elliptical trajectory perpendicular to the straight line), or a parabolic cylindrical surface (formed by a straight line moving along a parabolic trajectory perpendicular to the straight line).
[0065] Example A3: Reference Figure 4 The two pressure-applying profiles 430 are both inclined planes, and the inclined planes are inclined relative to the second surface. The inclination angles of the two inclined planes are the same. When the two pressure-applying profiles 430 are in contact, they fit each other, and the local pressure is reduced by surface contact.
[0066] Example A4: Reference Figure 5 , both pressure-applying profiles 430 are curved surfaces. For example, one pressure-applying profile 430 is a cylindrical surface, and the other pressure-applying profile 430 is an elliptical cylindrical surface.
[0067] In some examples, the first pressing member 410 and the second pressing member 420 are in rolling contact:
[0068] Example B1: Reference Figure 6One of the pressure-applying profiles 430 is a rolling surface of a circular rolling element, and the other pressure-applying profile 430 is an inclined plane or a curved surface.
[0069] Example B2: Reference Figure 7 One of the pressure-applying profiles 430 is a rolling surface of a circular rolling element, and the other pressure-applying profile 430 is a combination of a parallel plane and an inclined plane. The parallel plane is parallel to the second surface, and the inclined plane is inclined relative to the second surface.
[0070] The circular rolling element can be elastically deformed, so that when the gate 100 moves to the sealing position, the circular rolling element passes through the inclined plane and the parallel plane in sequence, so that the pressing force between the first pressing element 410 and the second pressing element 420 gradually increases first and then remains unchanged. At this time, the pressing force applied by the second pressing element 420 to the first pressing element 410 is not inclined relative to the second surface, but perpendicular to the second surface.
[0071] For example B1 and example B2, since rolling contact is selected, the friction force is small, which not only helps to reduce energy consumption, but also reduces the wear of the pressure profile 430, thereby extending the service life.
[0072] Example B3: Reference Figure 8 On the basis of Example B2, the circular rolling element can be elastically displaced, so that when the gate 100 moves to the sealing position, the circular rolling element passes through the inclined plane and the parallel plane in sequence, so that the pressing force between the first pressing element 410 and the second pressing element 420 first gradually increases and then remains unchanged. At this time, the pressing force applied by the second pressing element 420 to the first pressing element 410 is not inclined relative to the second surface, but perpendicular to the second surface.
[0073] In some examples, the first pipeline 500 is installed on other devices (such as a coal mill). In other examples, the first pipeline 500 is connected to the bracket 300 as a whole:
[0074] Example C1: Reference Figure 1 , Fig.11 The sealed isolation door 10 further includes a first pipe 500. The first pipe 500 includes a first tubular body 510, a first mounting assembly, and a first sealing member 530. The first tubular body 510 is mounted on the bracket 300, and the first tubular body 510 has a first pipe end facing the second surface. The first mounting assembly mounts the first sealing member 530 on the first pipe end. The first sealing member 530 is annular and is used to seal the gap between the first pipe end and the second surface of the gate 100 in the sealing position. In the field of thermal power generation, the first sealing member 530 is usually a packing.
[0075] Example C2: Reference Fig.11Based on example C1, the first seal 530 is sleeved on the outside of the first pipe end, and the first installation component is the first clamp 520. The first clamp 520 clamps the first seal 530 from the outside, so that the inner side of the first seal 530 is in close contact with the outer side of the first tubular body 510. Since the first seal 530 is arranged on the outside of the first pipe end, it is convenient to install and replace it.
[0076] Example C3: Reference Fig.11 On the basis of example C2, the sealed isolation door 10 further includes a first adjustment assembly 700, which is mounted on the bracket 300 and is located on the side of the first sealing member 530 away from the gate 100. The first adjustment assembly 700 is used to push the first sealing member 530 toward the gate 100, so that when the gate 100 is in the sealing position, the first sealing member 530 can be in close contact with the second surface of the gate 100. When the first adjustment assembly 700 is working, the first sealing member 530 is in sliding contact with the first clamp 520 and the first tubular body 510 respectively.
[0077] Example C4: Reference Fig.11 Based on Example C3, the first adjustment assembly 700 includes a first annular member 710 and a first pusher 720. The first annular member 710 is used to contact the side of the first sealing member 530 away from the gate 100, so that the various parts of the first sealing member 530 move synchronously toward the gate 100. The first pusher 720 is used to push the first annular member 710 toward the gate 100. For example, the first annular member 710 can be an annular pad.
[0078] Example C5: Reference Fig.11 Based on example C4, the first pusher 720 is a threaded member with external threads, and the first pusher 720 is directly or indirectly mounted on the bracket 300. It can be understood that the first pusher 720 can also be other types such as a hydraulic cylinder, as long as it can play a pushing role.
[0079] In some examples, the second pipe 600 is also connected to the bracket 300 as one body:
[0080] Example C6: Reference Figure 1 , Figure 2 , Fig.10 , Fig.11On the basis of example C1, the sealed isolation door 10 further includes a second pipe 600. The second pipe 600 includes a second tubular body 610, a second mounting assembly, and a second sealing member 630. The second tubular body 610 is mounted on the bracket 300, and the second tubular body 610 has a second pipe end facing the first surface. The second mounting assembly mounts the second sealing member 630 on the second pipe end, and the second sealing member 630 is annular and is used to seal the gap between the second pipe end and the first surface of the gate 100 in the sealing position. In the field of thermal power generation, the second sealing member 630 is usually a packing.
[0081] Similarly, the second seal 630 is sleeved on the outside of the second pipe end, and the second installation component is a second clamp 620. The second clamp 620 clamps the second seal 630 from the outside, so that the inner side of the second seal 630 is in close contact with the outer side of the second tubular body 610. Since the second seal 630 is arranged on the outside of the second pipe end, it is convenient to install and replace it.
[0082] The sealed isolation door 10 further includes a second adjustment assembly 800, which is mounted on the bracket 300 and is located on the side of the second sealing member 630 away from the gate 100. The second adjustment assembly 800 is used to push the second sealing member 630 toward the gate 100 so that when the gate 100 is in the sealing position, the second sealing member 630 can be in close contact with the first surface of the gate 100. When the second adjustment assembly 800 is working, the second sealing member 630 is in sliding contact with the second clamp 620 and the second tubular body 610 respectively.
[0083] The second adjustment assembly 800 includes a second annular member 810 and a second pusher 820. The second annular member 810 is used to contact the side of the second sealing member 630 away from the gate 100, so that the parts of the second sealing member 630 move synchronously toward the gate 100. The second pusher 820 is used to push the second annular member 810 toward the gate 100. For example, the second annular member 810 can be an annular pad.
[0084] The second pusher 820 is a threaded member with external threads, and the second pusher 820 is threadedly connected to the bracket 300. It is understandable that the second pusher 820 can also be other types such as a hydraulic cylinder, as long as it can play a pushing role.
[0085] Example C7: Reference Figure 2 , Fig. 9 , Fig.10 , Fig.12 Based on example C6, the bracket 300 is box-shaped, including a pair of box side covers 310, a pair of box end covers 320 and a pair of box surface covers 330.
[0086] The gate 100 is located inside the bracket 300. The driving end of the driving device 200 (e.g., the piston rod 210 of the hydraulic cylinder) passes through the corresponding through hole on one of the box body end covers 320 and is connected to the gate 100. The second pressing member 420 is installed on the box body side cover 310. The first tubular body 510 passes through one box body surface cover 330, the second tubular body 610 passes through the other box body surface cover 330, and the first sealing member 530 and the second sealing member 630 are both located between the two box body surface covers 330.
[0087] Example C8: Based on Example C7, the box end cover 320 without the drive device 200 is detachably installed (for example, by bolts), so that after the box end cover 320 is removed, the gate 100 can be pushed out of the bracket 300 by the drive device 200. The gate 100 is detachably connected to the driving end of the drive device 200 (for example, the piston rod 210 of the hydraulic cylinder) (for example, by bolts), so that after the gate 100 is detached from the driving end and the gate 100 is pushed out of the bracket 300 by the driving end, the driving end can be automatically separated from the gate 100 by retracting the driving end. This method of disassembling the gate 100 is simple and convenient, and can improve the efficiency of replacing the gate 100.
[0088] Example C9: Based on Example C8, all or part of at least one box body surface cover 330 is a detachable structure, so that after all or part of the box body surface cover 330 is removed, the components inside the bracket 300 can be maintained.
[0089] Example C10: Reference Figure 2 , Fig.10 , Fig.12 On the basis of example C9, a first flange 540 is provided on the first tubular body 510, and a second flange 640 is provided on the second tubular body 610. The first tubular body 510 is connected to one of the box body covers 330 through the first flange 540, and the second tubular body 610 is connected to the other box body cover 330 through the second flange 640. Both the first tubular body 510 and the second tubular body 610 are connected to the box body side cover 310 through the reinforcing rib 650.
[0090] Specifically, the box body cover 330 includes a cross bar 331, a first panel 332 and a second panel 333. The cross bar 331 supports the first panel 332 and the second panel 333, and the two ends of the cross bar 331 are respectively connected to the two box body side covers 310. The cross bar 331 can be an angle steel, and a gap is left between the cross bars 331 of the two box body cover 330, and the gap is for the gate 100 to pass through. The first panel 332 and the second panel 333 are respectively located on both sides of the longitudinal direction of the cross bar 331, and the edge of the first panel 332 is provided with an arc-shaped concave. Four first panels 332 are arranged in the circumferential direction of the first flange 540 and the second flange 640, and the first flange 540 and the second flange 640 are connected to the arc-shaped concave parts of the four first panels 332 by bolts. One longitudinal end of the second panel 333 is connected to the box body end cover 320, the other longitudinal end of the second panel 333 is connected to the cross bar 331, and the two transverse ends of the second panel 333 are respectively connected to the two box body side covers 310. The longitudinal direction here refers to the moving direction of the gate 100, and the length direction of the cross bar 331 is the transverse direction. The transverse direction is perpendicular to the longitudinal direction and is parallel to the second surface.
[0091] The first flange 540 and the second flange 640 both include a connecting plate 641 and a partial connecting ring 642. The four connecting plates 641 are evenly distributed along the circumference of the first flange 540 or the second flange 640, and two adjacent connecting plates 641 are connected by a partial connecting ring 642. Among them, two connecting plates 641 at opposite positions are respectively welded to the two box body side covers 310, and the other two connecting plates 641 at opposite positions are respectively welded to the two cross bars 331. A first panel 332 is arranged between the two connecting plates 641, and the two side edges of the first panel 332 are respectively connected to the adjacent connecting plates 641 by bolts, and the other two side edges of the first panel 332 are respectively connected to the cross bars 331 and the box body side covers 310 by bolts.
[0092] When it is necessary to maintain the components inside the bracket 300 , the first panel 332 , the second panel 333 or a combination thereof can be disassembled according to different actual needs.
[0093] The box body side cover 310 can be a square tube structure to increase the structural strength of the bracket 300. The first tubular body 510 and the second tubular body 610 are mainly supported by the box body side cover 310 and the reinforcing rib 650, and the box body surface cover 330 only plays an auxiliary supporting role. The first tubular body 510 and the reinforcing rib 650, the second tubular body 610 and the reinforcing rib 650, the reinforcing rib 650 and the box body side cover 310, and the cross bar 331 and the box body side cover 310 are preferably connected by welding.
[0094] The box end cover 320 for installing the driving device 200 can be a square tube structure to improve strength. The other box end cover 320 (the box end cover 320 that needs to be removed when replacing the gate 100) can be an end plate structure, and an angle steel 322 is arranged between the end plate structure and the second panel 333. The end plate structure and the second panel 333 are respectively connected to the two plate surfaces of the angle steel 322 by bolts.
[0095] In some examples, the gate 100 is supported by the support member 900 rather than being supported only by the end of the first conduit 500:
[0096] Example D1: Reference Figure 2 , Fig.10 The sealed isolation door 10 further includes a support member 900. The support member 900 is mounted on the bracket 300 and is used to support the second surface to guide and limit the gate 100. The support members 900 are arranged on both lateral sides of the gate 100 to support both lateral sides of the gate 100 at the same time.
[0097] Example D2: Based on Example D1, the support member 900 is a roller or a slide rail. When the support member 900 is a roller, it supports the gate 100 by rolling. When the support member 900 is a slide rail, it supports the gate 100 by sliding.
[0098] In some examples, pressure is applied to both sides of the gate 100 simultaneously to improve the sealing effect:
[0099] Example E1: There are multiple groups of pressing assemblies 400, and at least one group of pressing assemblies 400 is arranged on both sides of the gate 100 to apply pressure to both sides of the gate 100 at the same time. Fig.11 , two sets of clamping assemblies 400 can be arranged on both sides of the gate 100 respectively.
[0100] In some examples, the position of the gate 100 is displayed by a guide mark 131 that moves synchronously with the gate 100 for staff to observe in real time:
[0101] Example F1: Reference Figure 2 , Fig. 9 The sealed isolation door 10 further includes a guide rod 130, a guide mark 131 and a ruler 321. The guide rod 130 and the ruler 321 are parallel to each other and arranged adjacent to each other, and the guide rod 130 is parallel to the moving direction of the gate 100. The guide rod 130 is mounted on the gate 100, the guide mark 131 is mounted on the guide rod 130, the guide mark 131 points to the scale line of the ruler 321, and the ruler 321 is mounted on the bracket 300.
[0102] For example, the ruler 321 can be a tube, one end of which is connected to the bracket 300, and one end of the guide rod 130 extends into the tube. The tube is provided with a strip groove along its axis, and the guide mark 131 extends out of the strip groove. Graduation lines are drawn on the outer side of the tube, and the graduation lines are located on one side or both sides of the strip groove to indicate the position change along the axis of the tube. By observing the specific scale pointed by the guide mark 131, the position of the gate 100 can be understood.
[0103] In some examples, a through hole is provided on the gate 100, and the on-off state of the first pipeline 500 is changed by adjusting the position of the through hole:
[0104] Example G1: Reference Fig.12 , Fig.13 , a through hole is provided on the gate 100. When the gate 100 is in the open position, the through hole is at least partially opposite to the port of the first pipeline 500. When the gate 100 is in the sealed position, the through hole is staggered with the port of the first pipeline 500.
[0105] Specifically, the gate 100 may be a square plate, which is provided with a closed section 110 and a connecting section 120 along its longitudinal direction, wherein the closed section 110 is not provided with a through hole, and the connecting section 120 is provided with a circular hole 121. When the gate 100 is in the sealing position, the closed section 110 closes the end of the first pipe 500. When the gate 100 is in the open position, the through hole of the connecting section 120 is at least partially opposite to the port of the first pipe 500.
[0106] Preferably, the first tubular body 510 and the second tubular body 610 have the same inner diameter and outer diameter, and the through hole diameter of the connecting section 120 of the gate 100 is between the inner diameter and the outer diameter of the first tubular body 510. When the gate 100 is in the open position, the through hole of the connecting section 120 is coaxial with the first tubular body 510.
[0107] When the driving device 200 is a hydraulic cylinder (ie, example A1), the piston rod 210 is connected to the connecting section 120 of the gate 100 instead of the closed section 110, so that when liquid enters the rod chamber of the hydraulic cylinder, the circular hole 121 gradually moves toward the hydraulic cylinder, and the closed section 110 gradually closes the end of the first pipeline 500.
[0108] This embodiment further provides a thermal power generation equipment, including the above-mentioned sealed insulating door 10. Since the thermal power generation equipment includes the above-mentioned sealed insulating door 10, it also has the above-mentioned advantages of the sealed insulating door 10, which will not be described in detail here.
[0109] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of the utility model. At the same time, for those skilled in the art, according to the idea of the utility model, 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 utility model.
Claims
1. A sealed isolation door, capable of sealing at least an end of a first pipeline, comprising a gate, a driving device and a bracket; two opposite surfaces on the gate are respectively a first surface and a second surface; the second surface is used to close the first pipeline in a sealed position and at least partially open the first pipeline in an open position; the driving device is installed on the bracket and connected to the gate to drive the gate to move between the sealed position and the open position; Features: The sealed isolation door also includes a pressing assembly; The clamping assembly includes a first clamping member fixed on the first surface, and a second clamping member fixed on the bracket; the first clamping member and the second clamping member each have a pressure-applying profile; during the movement of the gate from the open position to the sealed position, the first clamping member and the second clamping member contact through the pressure-applying profile, and a gradually increasing clamping force is generated between the two, so that the second surface is pressed against the port of the first pipe through the clamping force.
2. The sealed insulating door according to claim 1, characterized in that: The first pressing member and the second pressing member are in sliding contact.
3. The sealed insulating door according to claim 2, characterized in that: The driving device is a hydraulic cylinder, which is connected to the gate via a piston rod. When liquid flows into the rod chamber of the hydraulic cylinder, the gate moves to the sealing position, and when liquid flows into the rodless chamber of the hydraulic cylinder, the gate moves to the opening position.
4. The sealed insulating door according to claim 2, characterized in that: One of the pressure-applying profiles is an inclined plane, and the inclined plane is inclined relative to the second surface; the other pressure-applying profile is a curved surface.
5. The sealed insulating door according to claim 2, characterized in that: The two pressure-applying profiles are both inclined planes, and the inclined planes are arranged to be inclined relative to the second surface; the inclination angles of the two inclined planes are the same.
6. The sealed insulating door according to claim 2, characterized in that: Both of the two pressure-applying profiles are curved surfaces.
7. The sealed insulating door according to claim 1, characterized in that: One of the pressure-applying profiles is a rolling surface of a circular rolling element, and the other pressure-applying profile is an inclined plane or a curved surface.
8. The sealed insulating door according to claim 1, characterized in that: One of the pressure-applying profiles is a rolling surface of a circular rolling element, and the other pressure-applying profile is a combination of a parallel plane and an inclined plane; the parallel plane is parallel to the second surface, and the inclined plane is inclined relative to the second surface; The circular rolling element is elastically deformable, so that when the gate moves toward the sealing position, the circular rolling element passes through the inclined plane and the parallel plane in sequence, so that the clamping force between the first clamping element and the second clamping element first gradually increases and then remains unchanged.
9. The sealed insulating door according to claim 8, characterized in that: The circular rolling element can be elastically displaced so that when the gate moves toward the sealing position, the circular rolling element passes through the inclined plane and the parallel plane in sequence, so that the pressing force between the first pressing element and the second pressing element first gradually increases and then remains unchanged.
10. The sealed insulating door according to claim 1, characterized in that: The sealed isolation door also includes the first pipeline; The first pipe comprises a first tubular body, a first mounting assembly and a first sealing member; the first tubular body is mounted on the bracket, the first tubular body has a first pipe end facing the second surface, and the first mounting assembly mounts the first sealing member on the first pipe end; The first sealing member is annular and is used for sealing a gap between the first pipe end and the second surface of the gate at the sealing position.
11. The sealed insulating door according to claim 10, characterized in that: The first sealing member is sleeved on the outer side of the first pipe end, and the first mounting assembly is a first clamp, which enables the first sealing member to be in close contact with the first tubular body.
12. The sealed insulating door according to claim 11, characterized in that: The sealed isolation door further comprises a first adjusting component, which is mounted on the bracket and located on a side of the first sealing member away from the gate; the first adjusting component is used to push the first sealing member toward the gate.
13. The sealed insulating door according to claim 12, characterized in that: The first adjustment assembly includes a first annular member and a first pushing member; the first annular member is used to contact the side of the first sealing member away from the gate so that each part of the first sealing member moves synchronously toward the gate; the first pushing member is used to push the first annular member toward the gate.
14. The sealed insulating door according to claim 13, characterized in that: The first pushing member is a threaded member with external threads, and the first pushing member is directly or indirectly mounted on the bracket.
15. The sealed insulating door according to claim 10, characterized in that: The sealed isolation door also includes a second pipeline; The second pipe includes a second tubular body, a second mounting assembly and a second sealing member; the second tubular body is mounted on the bracket, and the second tubular body has a second pipe end facing the first surface; the second mounting assembly mounts the second sealing member on the second pipe end, and the second sealing member is annular and is used to seal the gap between the second pipe end and the first surface of the gate in the sealing position.
16. The sealed insulating door according to claim 15, characterized in that: The bracket is box-shaped and includes a pair of box side covers, a pair of box end covers and a pair of box surface covers; The gate is located on the inner side of the bracket; the driving end of the driving device passes through one of the box body end covers and is connected to the gate; the second pressing member is installed on the box body side cover; the first tubular body passes through one box body surface cover, and the second tubular body passes through the other box body surface cover, and the first sealing member and the second sealing member are both located between the two box body surface covers.
17. The sealed insulating door according to claim 16, characterized in that: The box body end cover without the driving device installed is installed in a detachable manner, so that after the box body end cover is removed, the gate can be pushed out of the bracket by the driving device; the gate is detachably connected to the driving end of the driving device, so that after the gate is removed and pushed out, it can be automatically separated from the gate by the contraction of the driving device.
18. The sealed insulating door according to claim 17, characterized in that: At least one of the box body surface covers is entirely or partially detachable, so that after all or part of the box body surface cover is detached, the components inside the bracket can be maintained.
19. The sealed insulating door according to claim 16, characterized in that: The first tubular body is connected to a pair of the box body side covers and one of the box body surface covers through a first flange, and the second tubular body is connected to a pair of the box body side covers and another box body surface cover through a second flange; the first tubular body and the second tubular body are both connected to the box body side covers through reinforcing ribs.
20. The sealed insulating door according to claim 1, characterized in that: The sealed isolation door also includes a support member; the support member is installed on the bracket and is used to support the second surface to guide and limit the gate; the support members are arranged on both lateral sides of the gate to simultaneously support the two lateral sides of the gate.
21. The sealed insulating door according to claim 20, characterized in that: The supporting member is a roller or a slide rail.
22. The sealed insulating door according to claim 1, characterized in that: There are multiple groups of the clamping assemblies, and at least one group of the clamping assemblies is arranged on both sides of the gate to apply pressure to both sides of the gate at the same time.
23. The sealed insulating door according to claim 1, characterized in that: The sealed isolation door also includes a guide rod, a guide mark and a ruler; the guide rod and the ruler are parallel to each other and arranged adjacent to each other, and the guide rod is parallel to the moving direction of the gate; the guide rod is installed on the gate, the guide mark is installed on the guide rod, the guide mark points to the scale line of the ruler, and the ruler is installed on the bracket.
24. The sealed insulating door according to any one of claims 1 to 23, characterized in that: A through hole is arranged on the gate; when the gate is in the open position, the through hole is at least partially opposite to the port of the first pipeline; when the gate is in the sealed position, the through hole is staggered with the port of the first pipeline.
25. A thermal power generation equipment, characterized in that: It comprises a sealed insulating door as described in any one of claims 1 to 24.