Heat storage combustion safety explosion-proof device

Abstract

The utility model discloses a heat storage combustion safety explosion-proof device which comprises a fixed cylinder, a movable plate and a piston plate are sequentially and movably arranged in an inner cavity of the fixed cylinder from top to bottom, and a threaded rod is fixed to the top of the piston plate. Then the position of a movable plate is fixed through a connecting pipe, then the connecting pipe is fixed through a limiting bolt, the situation that an outer threaded barrel rotates, and the stability of the movable plate is affected is prevented, then a limiting nut rotates on the outer side of a threaded rod, the distance between the movable plate and a piston plate is adjusted, and a supporting spring is compressed; the distance between the piston plate and the air leakage hole is adjusted, meanwhile, the deformation distance of the supporting spring is changed, the piston plate is pushed by different pressures to move to the other side of the air leakage hole, safe explosion-proof work is completed, and the situation that due to the fact that the air pressure in the closed boiler is too large, the boiler safety is guaranteed through a preset pressure value is avoided. And the safe air pressure value can be conveniently adjusted according to different boilers.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof, in particular to a heat storage combustion safety explosion-proof device. Background Art

[0002] Regenerative combustion, the full name is "regenerative heat exchange combustion technology". It adopts a regenerative flue gas waste heat recovery device, alternately switches air or gas fuel and flue gas, and makes them flow through the heat storage body, recovering the sensible heat of high-temperature flue gas to the greatest extent. The exhaust temperature can be reduced to below 180℃, and the combustion medium or gas fuel can be preheated to above 500℃, forming a new type of flame different from the traditional flame, and making the temperature distribution in the furnace more uniform through reversing combustion. It is a brand-new combustion technology. It organically combines the recovery of flue gas waste heat with efficient combustion and nitrogen oxide emission reduction technologies to achieve the purpose of energy saving and emission reduction.

[0003] In the prior art, the Chinese utility model with publication number: CN216112373U discloses a safety explosion-proof device for a heat storage combustion system, including an explosion-proof box, an explosion-proof device and a porous silencer. The explosion-proof valve seat of the explosion-proof device is arranged inside the explosion-proof box, and the seat body of the explosion-proof valve seat is a porous plate, and a fixed shaft is arranged at the center of the porous plate; a sliding sleeve is arranged on the explosion-proof valve plate of the explosion-proof device, and the sliding sleeve is sleeved on the outside of the fixed shaft; a pressure regulating device is arranged on the upper part of the explosion-proof valve plate, and the spring of the pressure regulating device is sleeved on the outside of the explosion-proof valve plate. When the exhaust gas explodes, the pressurized exhaust gas pushes open the explosion-proof valve plate, and the explosion-proof valve plate automatically resets after the deflagration exhaust gas is discharged. The utility model has a simple structure and is easy to maintain, and provides a safe and effective explosion-proof measure for the heat storage combustion system.

[0004] In the above technical solution, the device is sealed by an explosion-proof valve plate. When the internal air pressure is too high, the internal and external air pressure can be adjusted to provide explosion-proof measures. However, the device cannot preset the air pressure value and cannot adjust the safe air pressure value according to the maximum air pressure that different boilers can withstand. One type of explosion-proof device can only correspond to one type of boiler, and the audience rate is low. Utility Model Content

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a heat storage combustion safety and explosion-proof device, comprising a fixed cylinder, an inner cavity of the fixed cylinder being movably provided with a movable plate and a piston plate from top to bottom in sequence, a threaded rod being fixed to the top of the piston plate, an end of the threaded rod away from the piston plate penetrates the movable plate and extends outward, a support spring is fixed to the surface of the piston plate, the other end of the support spring is fixed to the surface of the movable plate, the surface of the threaded rod is threadedly connected to a limiting nut, the limiting nut is located on the side of the movable plate away from the piston plate, and air leakage holes are provided around the surface of the fixed cylinder, the air leakage holes are located between the movable plate and the piston plate, the top of the movable plate is rotatably connected to a connecting pipe through a bearing, an end of the connecting pipe away from the movable plate is fixed with an externally threaded cylinder, and the externally threaded cylinder is threadedly connected to the inner cavity of the fixed cylinder.

[0006] Preferably, the inner wall of the connecting tube is threadedly connected with limiting bolts all around, and the limiting bolts penetrate to the outside of the connecting tube and fit against the inner wall of the fixing tube.

[0007] Preferably, a groove is provided at the top of the externally threaded barrel, and the inner cavity of the groove is movably connected to a movable rod via a movable shaft, a clamping groove is provided on the other side of the top of the externally threaded barrel, and the other side of the movable rod is clamped in the inner cavity of the clamping groove.

[0008] Preferably, a fixing block is fixed on the surface of the limiting nut, and the fixing blocks are distributed on both sides of the threaded rod.

[0009] Preferably, limiting rods are fixed around the top of the piston plate, and one end of the limiting rod away from the piston plate passes through the movable plate and fixes the limiting plate.

[0010] Preferably, a mounting joint is fixed to the bottom of the fixing tube, and a thread is formed on the outer side of the mounting joint.

[0011] Preferably, the radius of the inner cavity of the connecting tube is the same as the inner diameter of the external threaded barrel, and the outer diameter of the connecting tube is smaller than the outer diameter of the external threaded barrel.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model is connected by threading an external threaded tube with a fixed tube, and then the position of the movable plate is fixed by a connecting tube, and then the connecting tube is fixed by a limiting bolt to prevent the external threaded tube from rotating and affecting the stability of the movable plate, and then the limiting nut is rotated on the outside of the threaded rod to adjust the distance between the movable plate and the piston plate, compress the support spring, adjust the distance between the piston plate and the air leakage hole, and change the deformation distance of the support spring at the same time, so that different pressures push the piston plate to move to the other side of the air leakage hole, completing the safety explosion-proof work, so as to prevent the internal air pressure of the closed boiler from being too high, resulting in a frying pan, and ensuring the safety of the boiler by presetting the pressure value, and conveniently adjusting the safety air pressure value according to different boilers.

[0014] The utility model is connected with the clamping groove by the movable rod, so that the external threaded cylinder can be rotated conveniently and the position of the movable plate in the fixed cylinder can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the cross-sectional three-dimensional structure of the fixing cylinder of the utility model;

[0017] Figure 3 It is a partial three-dimensional structural schematic diagram of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the movable plate and the piston plate of the utility model.

[0019] Numbers in the figure: 1. Fixed cylinder; 2. Movable plate; 3. Piston plate; 4. Threaded rod; 5. Support spring; 6. Limit nut; 7. Air vent; 8. Connecting pipe; 9. Externally threaded cylinder; 10. Limit bolt; 11. Movable rod; 12. Slot; 13. Fixed block; 14. Limit rod; 15. Mounting joint. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model provides Figures 1 to 4A heat storage combustion safety explosion-proof device shown in the figure comprises a fixed cylinder 1, the inner cavity of the fixed cylinder 1 is movably provided with a movable plate 2 and a piston plate 3 from top to bottom in sequence, a threaded rod 4 is fixed on the top of the piston plate 3, the end of the threaded rod 4 away from the piston plate 3 penetrates the movable plate 2 and extends outward, a support spring 5 is fixed on the surface of the piston plate 3, the other end of the support spring 5 is fixed to the surface of the movable plate 2, the surface of the threaded rod 4 is threadedly connected with a limiting nut 6, the limiting nut 6 is located on the side of the movable plate 2 away from the piston plate 3, and air leakage holes 7 are opened all around the surface of the fixed cylinder 1, the air leakage holes 7 are located between the movable plate 2 and the piston plate 3, the top of the movable plate 2 is rotatably connected with a connecting pipe 8 through a bearing, the end of the connecting pipe 8 away from the movable plate 2 is fixed with an external threaded cylinder 9, and the external threaded cylinder 9 is threadedly connected to the inner cavity of the fixed cylinder 1;

[0022] The external threaded tube 9 is threadedly connected to the fixed tube 1, and then the position of the movable plate 2 is fixed by the connecting tube 8, and then the connecting tube 8 is fixed by the limit bolt 10 to prevent the external threaded tube 9 from rotating and affecting the stability of the movable plate 2. Then the limit nut 6 is rotated on the outside of the threaded rod 4 to adjust the distance between the movable plate 2 and the piston plate 3, compress the support spring 5, adjust the distance between the piston plate 3 and the air leakage hole 7, and change the deformation distance of the support spring 5 at the same time, so that different pressures push the piston plate 3 to move to the other side of the air leakage hole 7, completing the safety and explosion-proof work to prevent the internal air pressure of the closed boiler from being too high, causing the pot to explode. The safety of the boiler is guaranteed by the preset pressure value, and the safety air pressure value is adjusted according to different boilers.

[0023] The inner wall of the connecting tube 8 is threadedly connected to the limiting bolts 10 all around. The limiting bolts 10 penetrate to the outside of the connecting tube 8 and fit into the inner wall of the fixed tube 1. The connecting tube 8 can be fixed inside the fixed tube 1 through the limiting bolts 10 to prevent the external threaded tube 9 from continuing to rotate inside the fixed tube 1, causing the position of the movable plate 2 to change.

[0024] A groove is provided at the top of the externally threaded tube 9, and the inner cavity of the groove is movably connected to a movable rod 11 through a movable shaft. A slot 12 is provided on the other side of the top of the externally threaded tube 9, and the other side of the movable rod 11 is clamped in the inner cavity of the slot 12. The clamping connection between the movable rod 11 and the slot 12 facilitates the rotation of the externally threaded tube 9 and the adjustment of the position of the movable plate 2 in the fixed tube 1.

[0025] A fixing block 13 is fixed on the surface of the limit nut 6, and the fixing blocks 13 are distributed on both sides of the threaded rod 4. Through the setting of the fixing blocks 13, it is convenient to rotate the limit nut 6, adjust the position of the limit nut 6 on the threaded rod 4, and cooperate with the support spring 5 to adjust the distance between the movable plate 2 and the piston plate 3.

[0026] Limiting rods 14 are fixed around the top of the piston plate 3. The end of the limiting rod 14 away from the piston plate 3 passes through the movable plate 2 and fixes the limiting plate. Through the setting of the limiting rod 14, the stability between the piston plate 3 and the movable plate 2 is conveniently ensured, and the piston plate 3 is prevented from tilting in the inner cavity of the fixed cylinder 1, resulting in the inability to seal the bottom of the fixed cylinder 1.

[0027] A mounting joint 15 is fixed to the bottom of the fixing tube 1, and a thread is provided on the outside of the fixing joint 15. The setting of the mounting joint 15 facilitates the fixing tube 1 to be installed on the outside of the boiler and ensures that the fixing tube 1 is connected to the boiler.

[0028] The radius of the inner cavity of the connecting tube 8 is the same as the inner diameter of the external threaded tube 9, and the outer diameter of the connecting tube 8 is smaller than the outer diameter of the external threaded tube 9. By limiting the sizes of the connecting tube 8 and the external threaded tube 9, the connecting tube 8 is prevented from fitting against the inner wall of the fixed tube 1, thereby hindering the external threaded tube 9 from rotating in the inner cavity of the fixed tube 1.

[0029] During specific use, the fixed cylinder 1 is installed on the boiler through the installation joint 15, the movable rod 11 is clamped into the inside of the clamping groove 12, and the movable rod 11 is used to rotate the external threaded cylinder 9, and then the external threaded cylinder 9 rotates in the inner cavity of the fixed cylinder 1 and adjusts the height up and down, and then the external threaded cylinder 9 drives the movable plate 2 to adjust the height in the inner cavity of the fixed cylinder 1 through the connecting pipe 8, and at the same time, the fixed block 13 is used to drive the limit nut 6 to rotate, so that the limit nut 6 rotates on the surface of the threaded rod 4, and the threaded rod 4 is used to drive the piston plate 3 to adjust the height in the inner cavity of the fixed cylinder 1. At the same time, the distance between the piston plate 3 and the movable plate 2 changes, so that the deformation distance of the support spring 5 changes, and the maximum pressure value that can be withstood changes, thereby adjusting different safety air pressure values.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A heat storage combustion safety explosion-proof device, comprising a fixed cylinder (1), characterized in that: The inner cavity of the fixed cylinder (1) is movably provided with a movable plate (2) and a piston plate (3) in sequence from top to bottom; a threaded rod (4) is fixed on the top of the piston plate (3); one end of the threaded rod (4) away from the piston plate (3) penetrates the movable plate (2) and extends outward; a support spring (5) is fixed on the surface of the piston plate (3); the other end of the support spring (5) is fixed to the surface of the movable plate (2); the surface of the threaded rod (4) is threadedly connected with a limit nut (6); the limit nut (6) is located on the side of the movable plate (2) away from the piston plate (3); air leakage holes (7) are provided around the surface of the fixed cylinder (1); the air leakage holes (7) are located between the movable plate (2) and the piston plate (3); the top of the movable plate (2) is rotatably connected with a connecting pipe (8) through a bearing; an external threaded cylinder (9) is fixed on the end of the connecting pipe (8) away from the movable plate (2); the external threaded cylinder (9) is threadedly connected to the inner cavity of the fixed cylinder (1).

2. A thermal storage combustion safety explosion-proof device according to claim 1, characterized in that: The inner wall of the connecting tube (8) is threadedly connected to limit bolts (10) on all sides, and the limit bolts (10) penetrate to the outside of the connecting tube (8) and fit against the inner wall of the fixing tube (1).

3. A thermal storage combustion safety explosion-proof device according to claim 1, characterized in that: A groove is provided at the top of the externally threaded barrel (9), and the inner cavity of the groove is movably connected to a movable rod (11) via a movable shaft. A clamping groove (12) is provided on the other side of the top of the externally threaded barrel (9), and the other side of the movable rod (11) is clamped in the inner cavity of the clamping groove (12).

4. The heat storage combustion safety explosion-proof device according to claim 1, characterized in that: A fixing block (13) is fixed on the surface of the limiting nut (6), and the fixing blocks (13) are distributed on both sides of the threaded rod (4).

5. The heat storage combustion safety explosion-proof device according to claim 1, characterized in that: Limiting rods (14) are fixed around the top of the piston plate (3), and one end of the limiting rod (14) away from the piston plate (3) passes through the movable plate (2) and fixes the limiting plate.

6. The heat storage combustion safety explosion-proof device according to claim 1, characterized in that: A mounting joint (15) is fixed to the bottom of the fixing tube (1), and a thread is formed on the outer side of the mounting joint (15).

7. The heat storage combustion safety explosion-proof device according to claim 1, characterized in that: The radius of the inner cavity of the connecting tube (8) is the same as the inner diameter of the externally threaded barrel (9), and the outer diameter of the connecting tube (8) is smaller than the outer diameter of the externally threaded barrel (9).

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