Buffer device of double-effect external circulation evaporation preheater

Abstract

The utility model discloses a buffering device of a double-effect external circulation evaporation preheater, which relates to the technical field of evaporation preheating buffering and comprises an external circulation preheating evaporator device body, the external circulation preheating evaporator device body comprises a preheating evaporator, and the preheating evaporator is lapped on the inner side surface of a lapping sleeve shell. When the preheating evaporator vibrates too much, deformation heat-resisting hoses are fixedly connected to the surfaces of the two sides of the preheating evaporator, and the joints of the preheating evaporator are deformed through the deformation heat-resisting hoses. The preheating evaporator is in lap joint with the inner side surface of the lap joint sleeve shell, the matched lap joint limiting top cover is in lap joint with the top surface of the preheating evaporator, the matched clamping limiting arm is connected to the inner side surface of the clamping sleeve shell in a sleeving mode, the matched screw penetrates through the butt joint threaded hole to be clamped to the surface of the clamping limiting arm, and the position of the matched screw is limited. When the lap joint limiting top cover and the lap joint sleeve shell are installed in an extrusion mode.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporation preheating buffer, in particular to a buffer device of a double-effect external circulation evaporation preheater. Background Art

[0002] The double-effect external circulation evaporative preheater uses the flue gas in the flue at the tail end of the boiler to preheat the air before entering the boiler to a certain temperature of the heating surface through the internal heat sink. It is used to improve the heat exchange performance of the boiler and reduce energy consumption. It has the main characteristics of high heat transfer efficiency and short heating time. If it is equipped with a heat pressure pump, it has the advantages of energy saving and consumption reduction, low steam consumption, and low cooling water circulation. When the equipment is in use, it will produce relatively large vibrations, so a buffer device for the evaporative preheater is needed.

[0003] For example, the air preheater fan-shaped plate buffer device with Chinese patent publication number: CN203323159U is mainly composed of a front buffer block and a rear buffer block. The front buffer block is installed on the front side of the air preheater fan-shaped plate, and the rear buffer block is installed on the rear side of the air preheater fan-shaped plate, thereby avoiding direct contact between the sealing plate of the flexible contact seal and the front and rear sides of the fan-shaped plate, and effectively protecting the air preheater fan-shaped plate.

[0004] The prior art has the following problems: when the double-effect external circulation evaporator preheater is in use, slight vibrations will occur on the surface of the equipment, and the traditional device is directly fixed on the ground. When the double-effect external circulation evaporator preheater vibrates, the equipment and the ground will bend, which may cause the equipment to fall off. Utility Model Content

[0005] The utility model aims to provide a buffer device for a double-effect external circulation evaporator preheater to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A buffer device for a double-effect external circulation evaporator preheater comprises an external circulation preheating evaporator device body, wherein the external circulation preheating evaporator device body comprises a preheating evaporator, and the preheating evaporator is overlapped on the inner surface of the overlapped sleeve. When the preheating evaporator generates excessive vibration, deformable heat-resistant hoses are fixedly connected to the two side surfaces of the preheating evaporator, and the connection of the preheating evaporator is deformed by the deformable heat-resistant hoses so that the preheating evaporator can be deformed when vibrating. A card-connected limit buffer mechanism is movably sleeved on the outer surface of the preheating evaporator.

[0008] The clamping limit buffer mechanism comprises a limit sleeve buffer unit, a soft fitting anti-skid unit is arranged on the inner surface of the limit sleeve buffer unit, and docking limit units are arranged on both side surfaces of the soft fitting anti-skid unit.

[0009] A further improvement of the technical solution of the utility model is that the limiting sleeve buffer unit includes a lap sleeve shell that is movably sleeved on the outer surface of the preheating evaporator, and at the same time cooperates with the elastic buffer wires on the two side surfaces of the lap sleeve shell to perform elastic buffering when the lap sleeve shell is swung left and right. A trapezoidal elastic soft strip is fixedly connected to the bottom outer surface of the lap sleeve shell, and cooperates with the trapezoidal elastic soft strip on the top surface of the lap sleeve shell to buffer the up and down vibration of the preheating evaporator.

[0010] A further improvement of the technical solution of the utility model is that: the two side surfaces of the overlapping sleeve are fixedly connected with clamping limit columns, and one end of the clamping limit column is movably sleeved with an elastic buffer wire.

[0011] A further improvement of the technical solution of the utility model is that: an overlapping strip plate is fixedly connected to one end of the clamping limit column, and an overlapping fixed bottom plate is fixedly connected to the bottom surface of the trapezoidal elastic soft strip.

[0012] A further improvement of the technical solution of the utility model is that the soft-fitting anti-slip unit includes overlapping arc strips fixedly connected to the inner surface of the overlapping sleeve shell, and an extruded soft layer is arranged on the inner surface of the overlapping arc strip. At the same time, the extruded soft layer on the inner surface of the overlapping arc strip is used to elastically buffer and shock-absorb the preheating evaporator when it vibrates.

[0013] A further improvement of the technical solution of the utility model is that: a rectangular fitting anti-skid soft block is fixedly connected to the outer surface of the overlapping arc strip, and the rectangular fitting anti-skid soft block on the outer surface of the overlapping arc strip is used to increase the anti-skid friction between the surface of the preheating evaporator, and an overlapping limiting top cover is movably sleeved on the top outer surface of the overlapping sleeve shell, and the overlapping limiting top cover is overlapped on the top surface of the preheating evaporator when the overlapping limiting top cover and the overlapping sleeve shell are extruded and installed.

[0014] A further improvement of the technical solution of the utility model lies in that: the docking limit unit includes a clamping shell connected to the two side surfaces of the overlapping shell, a docking threaded hole is opened on the outer surface of the clamping shell, and the matching screws pass through the docking threaded hole and are clamped to the surface of the clamping limit arm to limit its position; the two side surfaces of the overlapping limit top cover are fixedly connected with the clamping limit arm, and the matching clamping limit arm is sleeved on the inner surface of the clamping shell.

[0015] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0016] 1. The utility model provides a buffer device for a double-effect external circulation evaporator preheater, which overlaps the preheating evaporator on the inner surface of the overlapping sleeve, overlaps the overlapping limit top cover on the top surface of the preheating evaporator, and the matching clamping limit arm is sleeved on the inner surface of the clamping sleeve. The matching screw passes through the docking threaded hole and is clamped on the surface of the clamping limit arm to limit its position.

[0017] 2. The utility model provides a buffer device for a double-effect external circulation evaporator preheater. When the overlapping limit top cover and the overlapping sleeve shell are extruded and installed, the rectangular fitting anti-skid soft blocks on the outer surface of the overlapping arc strip are used to increase the anti-skid friction between the surface of the preheating evaporator and the surface of the preheating evaporator. At the same time, the extruded soft layer on the inner surface of the overlapping arc strip is used to elastically buffer and shock the preheating evaporator when it vibrates.

[0018] 3. The utility model provides a buffer device for a double-effect external circulation evaporator preheater. When the preheating evaporator generates excessive vibration, the trapezoidal elastic strip on the top surface of the overlapping shell is used to buffer the vibration of the preheating evaporator up and down. At the same time, the elastic buffer wires on the two side surfaces of the overlapping shell are used to elastically buffer the overlapping shell when it swings left and right. The deformable heat-resistant hose is used to deform the connection of the preheating evaporator, so that the preheating evaporator can be deformed when it vibrates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a partial three-dimensional structural schematic diagram of the clamping limit buffer mechanism of the utility model;

[0021] Figure 3 It is a schematic diagram of the three-dimensional structure of the clamping limit column of the utility model;

[0022] Figure 4 It is a schematic diagram of the unfolded three-dimensional structure of the overlapping casing of the utility model;

[0023] Figure 5 It is a schematic diagram of the three-dimensional structure of the overlapping arc strips of the utility model.

[0024] In the figure: 1. External circulation preheating evaporator device body; 11. Preheating evaporator; 12. Deformed heat-resistant hose;

[0025] 2. Snap-fit ​​limit buffer mechanism; 21. Overlap strips; 22. Snap-fit ​​limit column; 23. Elastic buffer wire; 24. Overlap sleeve; a1. Snap-fit ​​sleeve; a2. Butt threaded hole; a3. Overlap limit top cover; a4. Snap-fit ​​limit arm; a5. Overlap arc strip; a6. Extruded soft layer; a7. Rectangular fitting anti-skid soft block; 25. Trapezoidal elastic soft strip; 26. Overlap fixed bottom plate. DETAILED DESCRIPTION

[0026] The present invention is further described in detail below in conjunction with the embodiments:

[0027] Example 1

[0028] like Figure 1-5 As shown, the utility model provides a buffer device for a double-effect external circulation evaporator preheater, the clamping limit buffer mechanism 2 includes a limit sleeve buffer unit, the inner surface of the limit sleeve buffer unit is provided with a soft fitting anti-skid unit, and the two side surfaces of the soft fitting anti-skid unit are provided with docking limit units, the soft fitting anti-skid unit includes an overlapping arc strip a5 fixedly connected to the inner surface of the overlapping sleeve shell 24, and an extrusion soft layer a6 is provided on the inner surface of the overlapping arc strip a5. At the same time, the extrusion soft layer a6 on the inner surface of the overlapping arc strip a5 is used to elastically buffer and shock-absorb the preheating evaporator 11 when it vibrates, and a rectangular fitting anti-skid soft block a7 is fixedly connected to the outer surface of the overlapping arc strip a5, which cooperates with the rectangular fitting anti-skid soft block a7 on the outer surface of the overlapping arc strip a5 to increase the anti-skid friction between the surface of the preheating evaporator 11 and the surface.

[0029] Example 2

[0030] like Figure 1-5 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, an overlapping limit top cover a3 is movably sleeved on the top outer surface of the overlapping sleeve 24, and the overlapping limit top cover a3 is overlapped on the top surface of the preheating evaporator 11. When the overlapping limit top cover a3 and the overlapping sleeve 24 are extruded and installed, the docking limit unit includes a clamping sleeve a1 connected to the two side surfaces of the overlapping sleeve 24, and a docking threaded hole a2 is opened on the outer side surface of the clamping sleeve a1. The matching screws pass through the docking threaded hole a2 and are clamped on the surface of the clamping limit arm a4 to limit its position. The two side surfaces of the overlapping limit top cover a3 are fixedly connected with the clamping limit arm a4, and the matching clamping limit arm a4 is sleeved on the inner surface of the clamping sleeve a1.

[0031] Example 3

[0032] like Figure 1-5As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, it includes an external circulation preheating evaporator device body 1, the external circulation preheating evaporator device body 1 includes a preheating evaporator 11, the preheating evaporator 11 is overlapped on the inner surface of the overlapped sleeve 24, when the preheating evaporator 11 produces excessive vibration, a deformable heat-resistant hose 12 is fixedly connected to the two side surfaces of the preheating evaporator 11, and the deformable heat-resistant hose 12 is used to deform the connection of the preheating evaporator 11, so that the preheating evaporator 11 can be deformed when vibrating, and a card-connected limit buffer mechanism 2 is movably sleeved on the outer surface of the preheating evaporator 11, and the limit sleeve buffer unit includes a card-connected limit buffer mechanism 2 movably sleeved on the preheating The overlapping shell 24 on the outer surface of the evaporator 11 cooperates with the elastic buffer wires 23 on the two side surfaces of the overlapping shell 24 to perform elastic buffering when the overlapping shell 24 swings left and right. A trapezoidal elastic soft strip 25 is fixedly connected to the bottom outer surface of the overlapping shell 24, and cooperates with the trapezoidal elastic soft strip 25 on the top surface of the overlapping shell 24 to buffer the up and down vibration of the preheating evaporator 11. The two side surfaces of the overlapping shell 24 are fixedly connected with a card-connecting limit column 22, and an elastic buffer wire 23 is movably sleeved on one end of the card-connecting limit column 22. A overlapping strip plate 21 is fixedly connected to one end of the card-connecting limit column 22, and a overlapping fixed bottom plate 26 is fixedly connected to the bottom surface of the trapezoidal elastic soft strip 25.

[0033] The working principle of the buffer device of the double-effect external circulation evaporator preheater is described in detail below.

[0034] like Figure 1-5 As shown, the preheating evaporator 11 is overlapped on the inner surface of the overlapping sleeve shell 24, the overlapping limit top cover a3 is overlapped on the top surface of the preheating evaporator 11, the clamping limit arm a4 is sleeved on the inner surface of the clamping sleeve shell a1, and the matching screws pass through the docking threaded holes a2 and are clamped on the surface of the clamping limit arm a4 to limit their positions. When the overlapping limit top cover a3 and the overlapping sleeve shell 24 are extruded and installed, the rectangular fitting anti-skid soft block a7 on the outer surface of the overlapping arc strip a5 is used to increase the anti-skid friction between the surface of the preheating evaporator 11 and the inner surface of the overlapping arc strip a5 is used. The extruded soft layer a6 on the side surface provides elastic buffering and shock reduction for the preheating evaporator 11 when it vibrates. When the preheating evaporator 11 vibrates too much, the trapezoidal elastic soft strip 25 on the top surface of the overlapping sleeve 24 buffers the vibration of the preheating evaporator 11 up and down. At the same time, the elastic buffer wires 23 on the two side surfaces of the overlapping sleeve 24 provide elastic buffering when the overlapping sleeve 24 swings left and right. The deformable heat-resistant hose 12 is used to deform the connection of the preheating evaporator 11, so that the preheating evaporator 11 can be deformed when it vibrates.

[0035] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A double-effect external circulation evaporator preheater buffer device, suitable for elastic buffering of the evaporator preheater, comprising an external circulation preheating evaporator device body (1), the external circulation preheating evaporator device body (1) comprising a preheating evaporator (11), and deformable heat-resistant hoses (12) are fixedly connected to the two side surfaces of the preheating evaporator (11), characterized in that: A clamping limit buffer mechanism (2) is movably sleeved on the outer surface of the preheating evaporator (11); The clamping limit buffer mechanism (2) comprises a limit sleeve buffer unit, a soft fitting anti-skid unit is arranged on the inner surface of the limit sleeve buffer unit, and docking limit units are arranged on both side surfaces of the soft fitting anti-skid unit.

2. The buffer device of a double-effect external circulation evaporative preheater according to claim 1 is characterized in that: The position-limiting sleeve buffer unit comprises an overlapping sleeve shell (24) movably sleeved on the outer surface of the preheating evaporator (11), and a trapezoidal elastic soft strip (25) is fixedly connected to the bottom outer surface of the overlapping sleeve shell (24).

3. The buffer device of a double-effect external circulation evaporative preheater according to claim 2 is characterized in that: The two side surfaces of the overlapping sleeve (24) are fixedly connected with clamping limit columns (22), and one end of the clamping limit column (22) is movably sleeved with an elastic buffer wire (23).

4. The buffer device of the double-effect external circulation evaporative preheater according to claim 3 is characterized in that: An overlapping strip plate (21) is fixedly connected to one end of the clamping limit column (22), and an overlapping fixed bottom plate (26) is fixedly connected to the bottom surface of the trapezoidal elastic soft strip (25).

5. The buffer device of a double-effect external circulation evaporative preheater according to claim 2 is characterized in that: The soft fitting anti-skid unit comprises an overlapping arc strip (a5) fixedly connected to the inner surface of the overlapping sleeve (24), and an extruded soft layer (a6) is arranged on the inner surface of the overlapping arc strip (a5).

6. The buffer device of the double-effect external circulation evaporative preheater according to claim 5 is characterized in that: A rectangular fitting anti-skid soft block (a7) is fixedly connected to the outer surface of the overlapping arc strip (a5), and an overlapping limiting top cover (a3) ​​is movably sleeved on the top outer surface of the overlapping sleeve (24).

7. The buffer device of the double-effect external circulation evaporative preheater according to claim 6 is characterized in that: The docking limit unit comprises a snap-fit ​​sleeve (a1) connected to the two side surfaces of the overlapping sleeve (24), a docking threaded hole (a2) is provided on the outer surface of the snap-fit ​​sleeve (a1), and snap-fit ​​limit arms (a4) are fixedly connected to the two side surfaces of the overlapping limit top cover (a3).

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