Suspended choked flow non-contact sealing structure based on air preheater
The suspended flow-blocking non-contact sealing structure solves the problem of performance degradation caused by wear of the traditional air preheater sealing structure, achieves higher sealing performance and lower maintenance costs, and extends the life of the equipment.
Patent Information
- Application Number
- CN202422564179.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The contact sealing structure of traditional air preheaters is prone to wear and tear, which can lead to a decrease in sealing performance, affecting thermal efficiency and equipment stability, and increasing maintenance costs.
It adopts a suspended flow-blocking non-contact sealing structure, including a limit assembly, a sliding assembly and a card-mounted sliding assembly. The non-contact design reduces wear and tear, and combines sealing glue and vent design to improve sealing performance and operational convenience.
It improves sealing performance, reduces maintenance frequency and cost, extends equipment life, and enhances equipment economy and reliability.
Smart Images
Figure CN223361202U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of air preheater accessory devices, in particular to a suspended flow-blocking non-contact sealing structure based on an air preheater. Background Art
[0002] As we all know, with the continuous development of industrial production, energy conservation and emission reduction have become important issues worldwide. Air preheaters, as key equipment for improving thermal energy efficiency, are widely used in many industries. However, traditional air preheaters have certain limitations during operation, especially in terms of sealing performance. This not only leads to heat loss but also may affect the stability and service life of the equipment.
[0003] Currently, most air preheaters on the market use a contact seal structure, which is prone to wear and tear, leading to a decrease in sealing performance and thus affecting the thermal efficiency of the entire system. Furthermore, contact seals require regular maintenance and replacement after long periods of operation, increasing operating costs and maintenance difficulties, making them less practical. Utility Model Content
[0004] In order to solve the above technical problems, the utility model provides a suspended flow-blocking non-contact sealing structure based on an air preheater to improve the sealing performance of the equipment, reduce maintenance costs, extend the service life, and thus enhance practicality.
[0005] The utility model provides a suspension flow-blocking non-contact sealing structure based on an air preheater, comprising a base plate and a support frame, wherein four groups of fixed through holes are provided at the top of the base plate, an air preheater is provided at the top of the base plate, the top of the base plate is connected to the support frame, a limiting component is provided on the support frame, the inner end of the limiting component is slidably clamped with the suspension flow blocker component through a sliding component, and the inner end of the support frame is slidably clamped with the suspension flow blocker through the clamping sliding component.
[0006] Preferably, the suspension spoiler assembly includes twenty groups of arc-shaped clip-on blocks, twenty groups of first clip-on blocks and a spoiler. The top of the fixed plate is connected to the twenty groups of arc-shaped clip-on blocks, the top of the fixed plate is connected to the twenty groups of first clip-on blocks, the bottom end of the spoiler is provided with a first through-hole, the first through-hole is connected to the exhaust pipe sleeve, the bottom end of the spoiler is provided with an air inlet groove, the bottom end of the spoiler is provided with twenty groups of first clip-on grooves, the bottom end of the spoiler is provided with twenty groups of guide grooves, the outer ends of the twenty groups of guide grooves are respectively provided with air outlet grooves, the twenty groups of arc-shaped clip-on blocks are all clipped with the air inlet grooves, and the twenty groups of first clip-on grooves are respectively clipped and fixed with the first clip-on blocks.
[0007] Preferably, the bottom end of the baffle is coated with sealing glue.
[0008] Preferably, the limiting assembly includes a cover plate and four sets of screws, the top of the cover plate is provided with four sets of mounting through holes, the top of the support frame is provided with four sets of mounting threaded holes, and the four sets of screws are respectively threadedly connected to the mounting threaded holes through the mounting through holes.
[0009] Preferably, ten groups of ventilation holes are provided on the top of the cover plate.
[0010] Preferably, the sliding assembly includes a sliding ring, a ring slide groove is provided at the top of the baffle, the bottom end of the cover plate is connected to the sliding ring, and the sliding ring and the ring slide groove are slidably fitted.
[0011] Preferably, the card-mounted slider assembly includes four groups of card-mounted sliders, a limiting ring is provided at the inner end of the support frame, the inner end of the support frame is connected to the four groups of card-mounted sliders, four groups of first card-mounted grooves are provided on the outer wall of the baffle, and four groups of second card-mounted grooves are provided on the outer wall of the fixed plate, and the four groups of card-mounted sliders are slidably carded with the first card-mounted grooves and the second card-mounted grooves respectively.
[0012] Preferably, the four groups of mounting through holes are all configured as countersunk holes.
[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention avoids the decline in sealing performance of the traditional contact sealing structure due to wear by adopting a suspended flow-blocking non-contact sealing structure, and then reduces the possibility of wear and damage through the non-contact sealing design, reduces the maintenance frequency and cost, and improves the economy and reliability of the equipment. Subsequently, due to the reduction in wear and maintenance times, the overall life of the equipment is extended, further reducing the life cycle cost of the equipment. Secondly, by setting a limit assembly, a sliding assembly and a card-mounted sliding assembly, the installation and adjustment of the suspended flow blocker are simpler and quicker, and the convenience of operation is improved, so as to improve the sealing performance of the equipment, reduce maintenance costs, extend the service life, and thus enhance practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the connection structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the connection structure between the inner end of the support frame and the clamping slider of the utility model;
[0016] Figure 3 This is a schematic diagram of the structure of the baffle of the utility model;
[0017] Figure 4 This is a schematic diagram of the fixed plate structure of the utility model;
[0018] Markings in the accompanying drawings: 1. Base plate; 2. Air preheater; 3. Support frame; 4. Arc-shaped clamping block; 5. First clamping block; 6. Baffle; 7. Fixing plate; 8. Cover plate; 9. Screw; 10. Sliding ring; 11. Clamping slider; 12. Exhaust pipe; 13. Limiting ring. DETAILED DESCRIPTION
[0019] The following embodiments are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0020] like Figures 1 to 4 As shown, the utility model is a suspension flow-blocking non-contact sealing structure based on an air preheater, comprising a base plate 1 and a support frame 3. Four groups of fixed through holes are provided at the top of the base plate 1. An air preheater 2 is provided at the top of the base plate 1. The top of the base plate 1 is connected to the support frame 3. A limiting component is provided on the support frame 3. The inner end of the limiting component is slidably clamped with the suspension flow blocker component through a sliding component. The inner end of the support frame 3 is slidably clamped with the suspension flow blocker through a clamping sliding component. The utility model avoids the degradation of sealing performance caused by wear of the traditional contact sealing structure by adopting a suspension flow-blocking non-contact sealing structure. Then, the non-contact sealing design reduces the possibility of wear and damage, reduces maintenance frequency and cost, and improves the economy and reliability of the equipment. Subsequently, due to the reduction in wear and maintenance times, the overall life of the equipment is extended, further reducing the life cycle cost of the equipment. Secondly, by providing a limiting component, a sliding component and a clamping sliding component, the installation and adjustment of the suspension flow blocker are simpler and faster, and the convenience of operation is improved, so as to improve the sealing performance of the equipment, reduce maintenance costs, extend the service life, and thus enhance practicality.
[0021] As a preferred embodiment of the above, the suspension spoiler assembly includes twenty groups of arc-shaped card blocks 4, twenty groups of first card blocks 5 and spoilers 6. The top of the fixed plate 7 is connected to the twenty groups of arc-shaped card blocks 4, the top of the fixed plate 7 is connected to the twenty groups of first card blocks 5, the bottom end of the spoiler 6 is provided with a first through-hole, the first through-hole is connected to the air outlet pipe 12 in a suit, the bottom end of the spoiler 6 is provided with an air inlet groove, the bottom end of the spoiler 6 is provided with twenty groups of first card grooves, the bottom end of the spoiler 6 is provided with twenty groups of guide grooves, and the twenty groups of guide grooves. The outer ends of the flow troughs are respectively provided with air outlet slots, and twenty groups of arc-shaped clamping blocks 4 are clamped with the air inlet grooves, and twenty groups of first clamping slots are respectively clamped and fixed with the first clamping blocks 5; when the air preheater is started, a large amount of hot air will be generated, and the hot air will be pushed upward through the sliding assembly and the baffle of the clamped sliding assembly, and the generated gas will enter the guide slot through the air inlet slot, and then the gas will be ejected through the air outlet slot, thereby blocking the hot air generated in the chamber, thereby playing the function of blocking the flow, thereby enhancing practicality.
[0022] As a preference of the above embodiment, the bottom end of the baffle 6 is coated with sealing glue; the glue can be used to improve the sealing box between the baffle and the fixed plate, thereby increasing the pressure of the gas ejected through the air outlet groove, thereby improving the sealing of the equipment and thus enhancing practicality.
[0023] As a preferred embodiment of the above embodiment, the limiting assembly includes a cover plate 8 and four groups of screws 9. Four groups of mounting through holes are provided at the top of the cover plate 8, and four groups of mounting threaded holes are provided at the top of the support frame 3. The four groups of screws 9 are respectively threadedly connected with the mounting threaded holes through the mounting through holes; the cover plate can be fixed by the four groups of screws, and the baffle can be limited by the cover plate, thereby enhancing practicality.
[0024] As a preference of the above embodiment, ten groups of ventilation holes are provided on the top of the cover plate 8; the ten groups of ventilation holes can be used to release the gas leaked during the operation of the equipment, and the cost can be reduced, thereby enhancing practicality.
[0025] As a preferred embodiment of the above, the sliding assembly includes a sliding ring 10, a ring groove is provided at the top of the baffle 6, the bottom end of the cover plate 8 is connected to the sliding ring 10, and the sliding ring 10 is slidably fitted with the ring groove; the position of the baffle can be limited by the sliding ring and the ring groove, thereby enhancing practicality.
[0026] As a preferred embodiment of the above, the card-mounted slider assembly includes four groups of card-mounted sliders 11, a limiting ring 13 is provided at the inner end of the support frame 3, the inner end of the support frame 3 is connected to the four groups of card-mounted sliders 11, four groups of first card-mounted grooves are provided on the outer wall of the baffle 6, and four groups of second card-mounted grooves are provided on the outer wall of the fixed plate 7. The four groups of card-mounted sliders 11 are slidably carded with the first card-mounted grooves and the second card-mounted grooves respectively; the baffle can be guided by the four groups of card-mounted sliders, and the bottom of the baffle can be limited by the limiting ring, thereby enhancing practicality.
[0027] As a preference of the above embodiment, the four groups of mounting through holes are all configured as countersunk holes; the four groups of screws can be hidden through the countersunk holes, thereby enhancing practicality.
[0028] The utility model is a suspended flow-blocking non-contact sealing structure based on an air preheater, and its working principle is as follows: when it is working, the equipment is first installed in a suitable position through four groups of fixed through holes, and then when the air preheater is started, the air preheater will generate hot air, and the hot air will drive the suspended flow blocker to move upward, and then the upward moving flow blocker will be guided along the four groups of card-mounted sliders and the circular slider, and the hot air will enter the twenty groups of guide grooves through the air inlet groove, and then the squeezed air will be ejected through the twenty groups of air outlet grooves to block the air in the support frame, and the air leaked from the air wall will be discharged through the vent, and then the hot air will be supplied to the upper device through the air outlet pipe, and then when repair and maintenance are needed, the cover plate can be removed by four groups of screws, and then the flow blocker can be removed, and then the parts can be maintained and repaired, and then the cover plate can be reinstalled by the four groups of screws.
[0029] The terms "vertical," "horizontal," "left," "right," and the like are used herein for descriptive purposes only.
[0030] The "first", "second" and "third" in the present invention do not represent specific quantities and orders, but are only used to distinguish names.
[0031] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.
Claims
1. A suspension flow-blocking non-contact sealing structure based on an air preheater, characterized in that: The invention comprises a base plate (1) and a support frame (3); the top of the base plate (1) is provided with four groups of fixed through holes; the top of the base plate (1) is provided with an air preheater (2); the top of the base plate (1) is connected to the support frame (3); a limit assembly is provided on the support frame (3); the inner end of the limit assembly is slidably mounted on a suspension baffle (6) assembly via a sliding assembly; and the inner end of the support frame (3) is slidably mounted on the suspension baffle (6) via the clamping sliding assembly.
2. The suspension flow-blocking non-contact sealing structure based on an air preheater according to claim 1, characterized in that: The suspension spoiler (6) assembly comprises twenty groups of arc-shaped card-mounting blocks (4), twenty groups of first card-mounting blocks (5) and the spoiler (6); the top of the fixed plate (7) is connected to the twenty groups of arc-shaped card-mounting blocks (4); the top of the fixed plate (7) is connected to the twenty groups of first card-mounting blocks (5); the bottom end of the spoiler (6) is provided with a first through-hole, and the first through-hole is connected to the air outlet pipe (12); the bottom end of the spoiler (6) is provided with an air inlet groove; the bottom end of the spoiler (6) is provided with twenty groups of first card-mounting grooves; the bottom end of the spoiler (6) is provided with twenty groups of guide grooves; the outer ends of the twenty groups of guide grooves are respectively provided with air outlet grooves; the twenty groups of arc-shaped card-mounting blocks (4) are all card-mounted with the air inlet grooves; the twenty groups of first card-mounting grooves are respectively card-mounted and fixed with the first card-mounting blocks (5).
3. The suspension flow-blocking non-contact sealing structure based on an air preheater according to claim 2, characterized in that: The bottom end of the baffle (6) is smeared with sealing glue.
4. The suspension flow-blocking non-contact sealing structure based on an air preheater according to claim 3, characterized in that: The limiting assembly includes a cover plate (8) and four groups of screws (9), the top of the cover plate (8) is provided with four groups of mounting through holes, the top of the support frame (3) is provided with four groups of mounting threaded holes, and the four groups of screws (9) are respectively threadedly connected to the mounting threaded holes through the mounting through holes.
5. The suspension flow-blocking non-contact sealing structure based on an air preheater according to claim 4, characterized in that: Ten groups of ventilation holes are provided on the top of the cover plate (8).
6. The suspension flow-blocking non-contact sealing structure based on an air preheater according to claim 5, characterized in that: The sliding assembly comprises a sliding ring (10), a ring slide groove is provided on the top of the baffle (6), the bottom end of the cover plate (8) is connected to the sliding ring (10), and the sliding ring (10) and the ring slide groove are slidably fitted.
7. The suspension flow-blocking non-contact sealing structure based on an air preheater according to claim 6, characterized in that: The clamping slider (11) assembly includes four groups of clamping sliders (11), a limiting ring (13) is provided at the inner end of the support frame (3), the inner end of the support frame (3) is connected to the four groups of clamping sliders (11), four groups of first clamping slots are provided on the outer wall of the baffle (6), and four groups of second clamping slots are provided on the outer wall of the fixed plate (7), and the four groups of clamping sliders (11) are respectively slidably clamped with the first clamping slots and the second clamping slots.
8. The suspension flow-blocking non-contact sealing structure based on an air preheater according to claim 7, characterized in that: The four groups of mounting through holes are all configured as countersunk holes.