Anti-vibration supporting structure of serpentine tube bundle of heat exchanger

Abstract

The utility model discloses an anti-vibration type supporting structure of a heat exchanger serpentine tube bundle, which comprises an upper half cylinder, the bottom of the upper half cylinder is fixedly connected with a lower half cylinder through a first bolt, serpentine tubes are arranged in the upper half cylinder and the lower half cylinder, a clamping mechanism is arranged on the outer wall of each serpentine tube, and the upper half cylinder and the lower half cylinder are fixedly connected through a second bolt. A damping device is arranged in the upper semicircular cylinder and the lower semicircular cylinder, and the damping device comprises a plurality of supporting plates which are fixedly connected to the inner walls of the upper semicircular cylinder and the lower semicircular cylinder respectively. The utility model relates to the technical field of heat exchanger serpentine tubes, in particular to an anti-vibration supporting structure of a heat exchanger serpentine tube bundle, which is characterized in that a supporting plate, a damping device and a clamping mechanism are matched, each waveform between a first waveform clamping plate and a second waveform clamping plate corresponds to one heat exchange tube, and a fixed limiting space is formed for the heat exchange tubes; and then the damping device is matched with the supporting plate to achieve the damping function of the coiled pipe, and therefore use safety can be guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat exchanger serpentine pipe technical field, concretely is a kind of heat exchanger serpentine pipe bundle's anti-vibration type supporting structure. BACKGROUND

[0002] High-pressure heater is the key auxiliary equipment in the regenerative system of power station steam turbine, in recent years, with the development of high parameter and large capacity of power station, high-pressure heater also needs to adapt to high parameter and large capacity trend, currently, traditional U-shaped tube high-pressure heater, due to the limitation of structure, heat exchange tube and tube sheet weld are prone to crack, especially in the variable load operation and peak shaving operation of unit or start-stop, heat exchange tube and tube sheet weld are easily damaged, since serpentine tube high-pressure heater has the advantages of simple structure and system, good thermal adaptability, high reliability, leading to its application more and more widely.

[0003] Serpentine tube header type high-pressure heater tube bundle adopts serpentine tube and header butt joint connection, increases the reliability of connection, its structure is completely different from traditional common U-shaped tube or fixed tube sheet type heat exchanger, the support structure and assembly procedure of tube bundle are also different, and do not have anti-vibration structure when using, therefore, once vibration occurs, the probability of causing accident is large, therefore, reliable tube bundle anti-vibration and supporting device needs to be designed and manufactured. UTILITY MODEL CONTENT

[0004] In view of the deficiency of prior art, the utility model provides a kind of heat exchanger serpentine pipe bundle's anti-vibration type supporting structure, solve the serpentine tube header type high-pressure heater tube bundle adopts serpentine tube and header butt joint connection, increases the reliability of connection, its structure is completely different from traditional common U-shaped tube or fixed tube sheet type heat exchanger, the support structure and assembly procedure of tube bundle are also different, and do not have anti-vibration structure when using, therefore, once vibration occurs, the probability of causing accident is large.

[0005] To achieve the above object, the utility model is realized by the following technical scheme: a kind of heat exchanger serpentine pipe bundle's anti-vibration type supporting structure, including upper half cylinder, the bottom of the upper half cylinder is fixedly connected with lower half cylinder by first bolt, the inside of the upper half cylinder and lower half cylinder is provided with serpentine pipe, the outer wall of the serpentine pipe is provided with clamping mechanism, the inside of the upper half cylinder and lower half cylinder is provided with damping device, the damping device includes: support plate, is set up multiple, is fixedly connected to the inner wall of the upper half cylinder and lower half cylinder respectively;Buffer mechanism is set in the inside of the upper half cylinder and lower half cylinder;Wherein, the support plate limits the position of serpentine pipe, and the buffer mechanism slows down the amplitude of serpentine pipe vibration.

[0006] Preferably, the clamping mechanism comprises: a plurality of first wave-shaped clamping plates abutting against the outer wall of the serpentine pipe; a plurality of second wave-shaped clamping plates abutting against the outer wall of the serpentine pipe and fixedly connected with the bottom of the plurality of first wave-shaped clamping plates through second bolts respectively; wherein the first wave-shaped clamping plates and the second wave-shaped clamping plates are fixed together through the second bolts.

[0007] Preferably, the buffering mechanism comprises: a plurality of supporting rods inserted into the inner wall of the plurality of supporting plates and fixedly connected with the outer wall of the plurality of first wave-shaped clamping plates and the plurality of second wave-shaped clamping plates respectively; a plurality of damping pads fixedly connected with the outer wall of the plurality of supporting rods and abutting against the inner wall of the plurality of supporting plates respectively; a plurality of springs sleeved on the outer wall of the plurality of supporting rods above and below and fixedly connected with the outer wall of the supporting plate above, the supporting plate below and the supporting rod above and the supporting rod below respectively; wherein the damping pads increase the friction between the supporting rods and the supporting plates, so as to consume the elastic potential energy of the springs.

[0008] Preferably, a sealing gasket is installed at the connection between the upper half cylinder and the lower half cylinder, and the inner wall of the upper half cylinder and the inner wall of the lower half cylinder are fixedly connected with reinforcing ribs.

[0009] Preferably, a first conduit is penetrated through the upper half cylinder, a second conduit is penetrated through the lower half cylinder, one end of the first conduit and the second conduit inside the upper half cylinder and the lower half cylinder is communicated with a hose, and the other end of the two hoses is communicated with the two ends of the serpentine pipe respectively.

[0010] Beneficial effects

[0011] The heat exchanger serpentine pipe bundle anti-vibration supporting structure has the following beneficial effects: the heat exchanger serpentine pipe bundle anti-vibration supporting structure is matched by the supporting plate, the damping device and the clamping mechanism, one wave shape between the first wave-shaped clamping plate and the second wave-shaped clamping plate corresponds to one heat exchange pipe, and a fixed limiting space is formed, then the damping device and the supporting plate are matched to realize the damping function of the serpentine pipe, so that the use safety can be ensured, the probability of accidents is reduced, and the use of the staff is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a structural schematic view of the utility model;

[0013] Figure 2 It is Figure 1 a sectional view;

[0014] Figure 3 It is another structural schematic view of the utility model;

[0015] Figure 4 For Figure 2 Structure diagram of the spring, the supporting rod and the damping pad;

[0016] Figure 5 For Figure 2 Structure diagram of the upper half cylinder, the lower half cylinder and the first bolt;

[0017] Figure 6 For Figure 2 Structure diagram of the first wave-shaped clamping plate, the second wave-shaped clamping plate and the coiled pipe;

[0018] Figure 7 For Figure 3 Structure diagram of the upper half cylinder, the lower half cylinder and the sealing pad.

[0019] In the figure: 1, the upper half cylinder; 2, the damping device; 21, the supporting plate; 22, the buffering mechanism; 221, the supporting rod; 222, the damping pad; 223, the spring; 3, the lower half cylinder; 4, the coiled pipe; 5, the clamping mechanism; 51, the first wave-shaped clamping plate; 52, the second wave-shaped clamping plate; 53, the second bolt; 6, the first bolt; 7, the sealing pad; 8, the reinforcing rib; 9, the hose; 10, the first conduit; 11, the second conduit. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] The parts in the case will be connected in sequence by the person skilled in the art, and the specific connection and operation sequence should be referred to the following working principle. The detailed connection means is the known technology in the art, and the following mainly introduces the working principle and process.

[0022] The coiled pipe header type high-pressure heater tube bundle adopts coiled pipe and header butt joint connection, which increases the reliability of the connection. The structure is completely different from the traditional common U-shaped tube or fixed tube sheet type heat exchanger, and the supporting structure and assembly procedure of the tube bundle are also different. When in use, it does not have a vibration-proof structure, so once vibration occurs, the probability of causing accidents is relatively large.

[0023] Therefore, the heat exchanger serpentine tube bundle anti-vibration supporting structure can guarantee the use safety, reduce the probability of accidents, and thus brings convenience to the use of the staff.

[0024] Embodiment one: by Figure 1 、 2 , 3, 4, 5, 6 and 7, a heat exchanger serpentine tube bundle anti-vibration supporting structure, comprising an upper half cylinder 1, the bottom of the upper half cylinder 1 is fixedly connected with a lower half cylinder 3 through a first bolt 6, the inside of the upper half cylinder 1 and the lower half cylinder 3 is provided with a serpentine tube 4, the outer wall of the serpentine tube 4 is provided with a clamping mechanism 5, the inside of the upper half cylinder 1 and the lower half cylinder 3 is provided with a damping device 2, the damping device 2 comprises: a support plate 21, which is provided with a plurality of support plates 21 and is fixedly connected to the inner wall of the upper half cylinder 1 and the lower half cylinder 3; a buffer mechanism 22 is arranged in the inside of the upper half cylinder 1 and the lower half cylinder 3; wherein the support plate 21 limits the position of the serpentine tube 4, and the buffer mechanism 22 reduces the amplitude of the vibration of the serpentine tube 4;

[0025] In the specific implementation process, it is particularly worth pointing out that the upper half cylinder 1 and the lower half cylinder 3 can constitute a complete cylinder, and the heat exchange is carried out in the inside of the cylinder, the damping device 2 can buffer and protect the serpentine tube 4, and avoid the problem of cracks of the serpentine tube 4 due to vibration;

[0026] Further, the clamping mechanism 5 comprises: a first wave-shaped clamping plate 51, which is provided with a plurality of first wave-shaped clamping plates 51 and abuts against the outer wall of the serpentine tube 4; a second wave-shaped clamping plate 52, which is provided with a plurality of second wave-shaped clamping plates 52 and abuts against the outer wall of the serpentine tube 4, and is fixedly connected with the bottom of the plurality of first wave-shaped clamping plates 51 through a second bolt 53; wherein the first wave-shaped clamping plate 51 and the second wave-shaped clamping plate 52 are fixed together through the second bolt 53;

[0027] In the specific implementation process, it is particularly worth pointing out that the first wave-shaped clamping plate 51 and the second wave-shaped clamping plate 52 can connect the plurality of pipelines of the serpentine tube 4 into a whole, so that the pipelines of the serpentine tube 4 move together, and the problem of single pipeline movement does not occur, and the first wave-shaped clamping plate 51 and the second wave-shaped clamping plate 52 are fixed together through the second bolt 53, so as to form a complete clamping frame;

[0028] Further, the buffering mechanism 22 comprises: a plurality of supporting rods 221, which are respectively inserted into the inner walls of the plurality of supporting plates 21 and are respectively fixed to the outer walls of the plurality of first wave-shaped clamping plates 51 and the plurality of second wave-shaped clamping plates 52; a plurality of damping pads 222, which are respectively fixedly connected to the outer walls of the plurality of supporting rods 221 and are respectively attached to the inner walls of the plurality of supporting plates 21; and a plurality of springs 223, which are respectively sleeved on the outer walls of the plurality of supporting rods 221 located above and below and are respectively fixed to the outer walls of the supporting plate 21 located above, the supporting plate 21 located below, and the supporting rods 221 located above and below; wherein the damping pads 222 increase the friction between the supporting rods 221 and the supporting plates 21, thereby consuming the elastic potential energy of the springs 223.

[0029] In the specific implementation process, it is particularly worth noting that the staff should open openings in the upper half cylinder 1 and the lower half cylinder 3, and then the staff can replace the springs 223 regularly according to the actual use situation, so as to avoid the problem of reducing the shock absorption efficiency due to the decrease of the elastic potential energy of the springs 223. When the openings are opened, corresponding cover plates should be matched, and sealing measures should be taken, so as to avoid the phenomenon of liquid leakage. This is the existing known technology, so it will not be described in detail, and those skilled in the art should understand it in a broad sense.

[0030] Further, the connecting part of the upper half cylinder 1 and the lower half cylinder 3 is provided with a sealing gasket 7, and the inner walls of the upper half cylinder 1 and the lower half cylinder 3 are fixedly connected with reinforcing ribs 8.

[0031] In the specific implementation process, it is particularly worth noting that the sealing gasket 7 can seal the upper half cylinder 1 and the lower half cylinder 3 to avoid the phenomenon of liquid leakage. The material of the sealing gasket 7 is not limited, as long as it meets the use requirement. The reinforcing ribs 8 can improve the overall strength of the upper half cylinder 1 and the lower half cylinder 3.

[0032] Further, the upper half cylinder 1 is penetrated by a first conduit 10, and the lower half cylinder 3 is penetrated by a second conduit 11. One end of the first conduit 10 and the second conduit 11 located inside the upper half cylinder 1 and the lower half cylinder 3 is communicated with a hose 9, and the other end of the two hoses 9 is communicated with the two ends of the serpentine tube 4.

[0033] In the specific implementation process, it is particularly worth noting that the design of the hose 9 can make the serpentine tube 4 move inside the upper half cylinder 1 and the lower half cylinder 3, so as to set that the serpentine tube 4 can freely buffer. The material of the hose 9 is not limited, as long as it meets the use requirement.

[0034] Specifically, in use of the anti-vibration supporting structure of the heat exchanger serpentine tube bundle, first, the first wave-shaped clamping plate 51 and the second wave-shaped clamping plate 52 are connected and fixed by the second bolt 53, then the supporting plate 21 is inserted between each pipe of the serpentine pipe 4, then the supporting rod 221 is inserted into the inside of the supporting plate 21, then the first wave-shaped clamping plate 51 and the second wave-shaped clamping plate 52 are welded and fixed, finally, the supporting plate 21 is welded and fixed with the upper half cylinder 1 and the lower half cylinder 3, then it can be put into use, when in use, once vibration occurs, the supporting rod 221 can move along the inner wall of the supporting plate 21, at this time, the shape of the spring 223 can be changed, thereby realizing automatic buffering protection, then the elastic potential energy of the spring 223 is consumed by the friction between the damping pad 222 and the supporting plate 21, so that the spring 223 can be quickly stabilized.

[0035] It should be noted that the relative terms such as first and second and the like are used herein solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without more limitations, the statement "comprises... limited element" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the stated element.

[0036] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connecting" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited, the above-mentioned terms in the present application can be understood according to the specific meaning by the person skilled in the art.

[0037] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A vibration-proof support structure for a heat exchanger serpentine tube bundle, comprising an upper half-cylinder (1), characterized in that: The bottom of the upper half cylinder (1) is fixedly connected with the lower half cylinder (3) through the first bolt (6), the inside of the upper half cylinder (1) and the lower half cylinder (3) is provided with the serpentine pipe (4), the outer wall of the serpentine pipe (4) is provided with the clamping mechanism (5), the inside of the upper half cylinder (1) and the lower half cylinder (3) is provided with the damping device (2), the damping device (2) comprises: The support plate (21) is provided with a plurality of support plates (21) and is fixedly connected to the inner wall of the upper half cylinder (1) and the lower half cylinder (3); The buffer mechanism (22) is arranged in the inside of the upper half cylinder (1) and the lower half cylinder (3); Wherein, the support plate (21) limits the position of the serpentine pipe (4), and the buffer mechanism (22) reduces the amplitude of the vibration of the serpentine pipe (4).

2. A vibration-proof support structure for a heat exchanger serpentine tube bundle according to claim 1, characterized in that: The clamping mechanism (5) comprises: The first wave-shaped clamping plate (51) is provided with a plurality of first wave-shaped clamping plates (51) and is abutted to the outer wall of the serpentine pipe (4); The second wave-shaped clamping plate (52) is provided with a plurality of second wave-shaped clamping plates (52) and is abutted to the outer wall of the serpentine pipe (4), and is fixedly connected to the bottom of the plurality of first wave-shaped clamping plates (51) through the second bolt (53); Wherein, the first wave-shaped clamping plate (51) and the second wave-shaped clamping plate (52) are fixed together through the second bolt (53).

3. A vibration-proof support structure for a heat exchanger serpentine tube bundle according to claim 1, characterized in that: The buffer mechanism (22) comprises: The support rod (221) is provided with a plurality of support rods (221) and is inserted into the inner wall of the plurality of support plates (21), and is fixedly connected to the outer wall of the plurality of first wave-shaped clamping plates (51) and the plurality of second wave-shaped clamping plates (52); The damping pad (222) is provided with a plurality of damping pads (222) and is fixedly connected to the outer wall of the plurality of support rods (221), and is abutted to the inner wall of the plurality of support plates (21); The spring (223) is provided with a plurality of springs (223) and is sleeved on the outer wall of the plurality of support rods (221) above and below, and the two ends are fixedly connected to the outer wall of the support plate (21) above, the support plate (21) below, the support rod (221) above and the support rod (221) below; Wherein, the damping pad (222) increases the friction between the support rod (221) and the support plate (21), so as to consume the elastic potential energy of the spring (223).

4. A vibration-proof support structure for a heat exchanger serpentine tube bundle according to claim 1, characterized in that: The connecting part of the upper half cylinder (1) and the lower half cylinder (3) is provided with a sealing gasket (7), and the inner wall of the upper half cylinder (1) and the lower half cylinder (3) is fixedly connected with a reinforcing rib (8).

5. A vibration-proof support structure for a heat exchanger serpentine tube bundle according to claim 1, characterized in that: The first conduit (10) penetrates the upper half cylinder (1), the second conduit (11) penetrates the lower half cylinder (3), one end of the first conduit (10) and the second conduit (11) in the inside of the upper half cylinder (1) and the lower half cylinder (3) is communicated with the hose (9), and the two ends of the two hoses (9) are communicated with the two ends of the serpentine pipe (4).

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