Lift valve cylinder device
By designing the support rod and fixing plate structure in the lift valve cylinder device, the piston rod and the sealing assembly are avoided from contacting directly, and the abnormal movement problems caused by the cylinder are solved, ensuring the normal operation of the equipment and the continuous operation of the boiler.
Patent Information
- Application Number
- CN202420606052.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-27
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-03-27
AI Technical Summary
In the bag dust collector, the front end cover of the cylinder and the piston rod are prone to fouling, resulting in damage to the sealing assembly, causing abnormal cylinder operation, affecting the normal opening and closing of the poppet valve, and thus causing the boiler to shut down.
A lift valve cylinder device is designed. By setting up a cylinder rear end cover, front end cover, piston rod, support rod, cylinder fixing plate, valve body fixing plate, fixing screw and nut, the structure formed is to prevent the piston rod from contacting the sealing assembly directly. , add support rods to stabilize the cylinder mechanism and prevent scaling and damage.
It effectively avoids partial damage to the cylinder sealing assembly by piston rod, ensures normal operation of the cylinder, prevents the boiler from shutting down, and improves the reliability and stability of the equipment.
Smart Images
Figure CN222163752U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of lift valves, and in particular to a lift valve cylinder device. Background Art
[0002] The working mechanism of the bag dust collector is that the dust-laden flue gas passes through the filter material (bag), and the dust particles are filtered out. The filter material (bag) captures coarse dust mainly by inertial collision, and captures fine dust mainly by diffusion and screening. The dust layer of the filter material also has a certain filtering effect.
[0003] The lifting valve of the bag filter is controlled by the cylinder, electromagnetic reversing valve, valve plate and lifting rod. In the bag filter, the opening and closing of the lifting valve is controlled by cleaning or filtering. When the bag filter is filtering and removing dust normally, the cylinder is in the open state; when cleaning, the cylinder lifting valve is closed, cutting off the passage of the bag chamber smoke to the outlet.
[0004] In the bag-type dust removal section of the power unit, the piston rod of the cylinder of the bag-type dust collector lifting valve is in contact with the boiler flue gas in the bag-type dust collector chamber. The part of the cylinder piston rod that contacts the flue gas is prone to scaling. When the lifting valve is opened or closed, the scaled piston rod passes through the front end cover of the cylinder, which can easily damage the sealing component inside the front end cover of the cylinder, causing air leakage in the front end cover of the cylinder, making the leaking lifting valve unable to operate normally. When the leakage is serious, the air source pressure of the 18 lifting valves of the bag-type dust collector is reduced, making the 18 lifting valves unable to open or close normally, resulting in boiler shutdown. Summary of the invention
[0005] In order to solve the problem that the front end cover of the cylinder and the piston rod part which is prone to scaling cannot be separated, and the piston rod part which is prone to scaling can easily damage the cylinder sealing component and cause abnormal cylinder operation; the purpose of the utility model is to provide a lifting valve cylinder device.
[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:
[0007] A lifting valve cylinder device includes a cylinder mechanism, wherein the cylinder mechanism includes a cylinder rear end cover, the lower end of the cylinder rear end cover is fixedly connected to a cylinder barrel, the lower end of the cylinder barrel is fixedly connected to a cylinder front end cover, the cylinder front end cover is penetrated by a cylinder piston rod, the lower end of the cylinder rear end cover is fixedly connected to four cylinder tie rods, and the lower ends of the four cylinder tie rods are fixedly connected to the cylinder front end cover.
[0008] Preferably, the lower end of the cylinder front end cover is fixedly connected to a cylinder fixing plate, a plurality of first fixing holes are opened on the cylinder fixing plate, a plurality of support rods are penetrated through the plurality of first fixing holes, and the lower ends of the plurality of support rods are penetrated through a valve body fixing plate, which can be used to increase the overall height of the cylinder device.
[0009] Preferably, four second fixing holes are provided on the valve body fixing plate, and fixing screws are fixedly connected at both ends of the support rod, and the fixing screws pass through the cylinder fixing plate and the valve body fixing plate and are threadedly connected with nuts, so that the support rod can be fixed to the cylinder fixing plate and the valve body fixing plate, and the upper end of the valve body fixing plate is contact-connected with a sealing end cover, and four bolt holes are provided on the upper end of the sealing end cover, and fixing bolts are threadedly connected to the inner surfaces of the four bolt holes, and the lower end of the fixing bolts passes through and is connected to the valve body fixing plate, so that the sealing end cover can be fixed to the valve body fixing plate.
[0010] Preferably, a through hole is provided at the upper end of the sealing end cover, and the outer surface of the through hole is slidably connected to the cylinder piston rod, so that the cylinder piston rod can slide up and down. The outer surface of the cylinder front end cover is in contact with the nut, which plays a role in firmly fixing the cylinder mechanism. The lower end of the cylinder piston rod is fixedly connected to a piston rod screw, which can be connected to extend the cylinder piston rod. There are four support rods in total, and the four support rods are distributed in a rectangular array, which can make the structure more stable.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] The utility model arranges a piston rod screw, wherein the support rod, the cylinder fixing plate, the valve body fixing plate, the fixing screw and the nut are used to prevent the piston rod part which is prone to scaling from damaging the cylinder sealing component and causing abnormal cylinder movement and preventing the boiler from shutting down. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings are used to provide a further understanding of the present application and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the present application and do not constitute a limitation to the present application.
[0014] Figure 1 It is a schematic diagram of the structure of the utility model.
[0015] Figure 2 For this utility model Figure 1 A magnified view of the structure in the middle.
[0016] Figure 3 For this utility model Figure 1 Enlarged view of the structure at point B in the middle.
[0017] Figure 4 It is a bottom view of the structure of the utility model.
[0018] In the figure: 1. rear end cover of the cylinder; 2. cylinder body; 3. front end cover of the cylinder; 4. cylinder fixing plate; 41. first fixing hole; 5. sealing end cover; 51. fixing bolt; 52. through hole; 6. valve body fixing plate; 61. second fixing hole; 7. cylinder piston rod; 8. cylinder pull rod; 9. fixing screw; 91. nut; 10. support rod; 11. bolt hole; 12. piston rod screw; 13. cylinder mechanism. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of this application clearer, the technical solutions in this application will be clearly and completely described below in conjunction with the drawings in this application. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0020] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features; in the description of this application, unless otherwise specified, "plurality" means two or more.
[0021] Example 1
[0022] like Figure 1-4 As shown, the utility model provides a lifting valve cylinder device, including a cylinder mechanism 13, the cylinder mechanism 13 includes a cylinder rear end cover 1, the lower end of the cylinder rear end cover 1 is fixedly connected to a cylinder barrel 2, the lower end of the cylinder barrel 2 is fixedly connected to a cylinder front end cover 3, the cylinder front end cover 3 is penetrated by a cylinder piston rod 7, the lower end of the cylinder rear end cover 1 is fixedly connected to four cylinder pull rods 8, and the lower ends of the four cylinder pull rods 8 are fixedly connected to the cylinder front end cover 3.
[0023] The lower end of the cylinder front end cover 3 is fixedly connected to the cylinder fixing plate 4, and a plurality of first fixing holes 41 are opened on the cylinder fixing plate 4. A plurality of support rods 10 are connected through the plurality of first fixing holes 41, and the lower ends of the plurality of support rods 10 are connected through the valve body fixing plate 6.
[0024] By adopting the above technical solution, the overall height of the cylinder device can be increased.
[0025] Four second fixing holes 61 are formed on the valve body fixing plate 6 , and fixing screws 9 are fixedly connected to both ends of the support rod 10 . The fixing screws 9 penetrate through the cylinder fixing plate 4 and the valve body fixing plate 6 and are threadedly connected to nuts 91 .
[0026] By adopting the above technical solution, the support rod 10 can be fixed on the cylinder fixing plate 4 and the valve body fixing plate 6.
[0027] The upper end of the valve body fixing plate 6 is in contact with the sealing end cover 5 , and the upper end of the sealing end cover 5 is provided with four bolt holes 11 . The inner surfaces of the four bolt holes 11 are threadedly connected with fixing bolts 51 , and the lower ends of the fixing bolts 51 are connected to the valve body fixing plate 6 .
[0028] By adopting the above technical solution, the sealing end cover 5 can be fixed on the valve body fixing plate 6.
[0029] A through hole 52 is formed at the upper end of the sealing end cover 5 , and the outer surface of the through hole 52 is slidably connected to the cylinder piston rod 7 .
[0030] By adopting the above technical solution, it is convenient for the cylinder piston rod 7 to slide up and down.
[0031] The outer surface of the cylinder front end cover 3 is in contact with the nut 91 .
[0032] By adopting the above technical solution, the cylinder mechanism 13 can be firmly fixed.
[0033] The cylinder piston rod 7 is made of 316L, and the lower end of the cylinder piston rod 7 is fixedly connected with a piston rod screw 12 .
[0034] By adopting the above technical solution, the cylinder piston rod 7 can be connected and lengthened.
[0035] There are four support rods 10 in total, and the four support rods 10 are distributed in a rectangular array.
[0036] By adopting the above technical solution, the structure can be made more stable.
[0037] Working principle:
[0038] First, the staff connects the extension rod of the cylinder piston rod 7 under the action of the piston rod screw 12 on the cylinder piston rod 7, and then inserts the four support rods 10 into the first fixing hole 41 on the cylinder fixing plate 4 and the second fixing hole 61 on the valve body fixing plate 6, and then rotates the support rod 10 to fix it together with the cylinder fixing plate 4 and the valve body fixing plate 6 through the fixing screw 9, and installs the nut 91 on the fixing screw 9 until one end of the fixing screw 9 contacts the cylinder fixing plate 4 and the valve body fixing plate 6. Place the sealing end cover 5 on the valve body fixing plate 6, rotate the fixing bolt 51 and insert it into the bolt hole 11 on the sealing end cover 5, fix the sealing end cover 5 to the valve body fixing plate 6, and then place the cylinder mechanism 13 on the cylinder fixing plate 4, insert the cylinder piston rod 7 on the cylinder mechanism 13 into the through hole 52, and at the same time, clamp the cylinder front end cover 3 in the four nuts 91, so that the part of the cylinder piston rod 7 that contacts the flue gas is between the cylinder front end cover 3 and the sealing end cover 5, and does not contact the sealing component of the cylinder front end cover 3, and if the cylinder piston rod 7 is scaled, it can be easily cleaned.
[0039] The above embodiments are only used to illustrate the technical solution of the present application, but not to limit it. The present application is not limited to the exact structure described above and illustrated in the accompanying drawings, and it cannot be determined that the specific implementation of the present application is limited to these descriptions. For ordinary technicians in the technical field to which the present application belongs, various changes and modifications made without departing from the concept of the present application should be deemed to belong to the protection scope of the present application.
Claims
1. A lift valve cylinder device, comprising a cylinder mechanism (13), characterized in that: The cylinder mechanism (13) comprises a cylinder rear end cover (1), the lower end of the cylinder rear end cover (1) is fixedly connected to a cylinder barrel (2), the lower end of the cylinder barrel (2) is fixedly connected to a cylinder front end cover (3), the cylinder front end cover (3) is penetrated by a cylinder piston rod (7), the lower end of the cylinder rear end cover (1) is fixedly connected to four cylinder tie rods (8), and the lower ends of the four cylinder tie rods (8) are fixedly connected to the cylinder front end cover (3); The lower end of the cylinder front end cover (3) is fixedly connected to a cylinder fixing plate (4), a plurality of first fixing holes (41) are provided on the cylinder fixing plate (4), a plurality of support rods (10) are connected through the plurality of first fixing holes (41), and the lower ends of the plurality of support rods (10) are connected through the valve body fixing plate (6).
2. The lift valve cylinder device according to claim 1, characterized in that: The valve body fixing plate (6) is provided with four second fixing holes (61), and both ends of the support rod (10) are fixedly connected with fixing screws (9), and the fixing screws (9) penetrate the cylinder fixing plate (4) and the valve body fixing plate (6) and are threadedly connected with nuts (91).
3. The lift valve cylinder device according to claim 1, characterized in that: The upper end of the valve body fixing plate (6) is in contact with a sealing end cover (5), and the upper end of the sealing end cover (5) is provided with four bolt holes (11). The inner surfaces of the four bolt holes (11) are threadedly connected with fixing bolts (51), and the lower end of the fixing bolts (51) is connected to the valve body fixing plate (6).
4. The lift valve cylinder device according to claim 3, characterized in that: A through hole (52) is formed at the upper end of the sealing end cover (5), and the outer surface of the through hole (52) is slidably connected to the cylinder piston rod (7).
5. The lift valve cylinder device according to claim 1, characterized in that: The outer surface of the cylinder front end cover (3) is in contact with and connected to the nut (91).
6. The lift valve cylinder device according to claim 1, characterized in that: The lower end of the cylinder piston rod (7) is fixedly connected to a piston rod screw (12).
7. The lift valve cylinder device according to claim 1, characterized in that: The plurality of support rods (10) are provided in four in total, and the four support rods (10) are distributed in a rectangular array.