Plate-fin heat exchanger capable of reducing cold loss

Abstract

The utility model discloses a plate-fin heat exchanger capable of reducing cold loss, which relates to the technical field of plate-fin heat exchangers and comprises a plate-fin heat exchanger body and a heat insulation plate which is arranged at the top of the plate-fin heat exchanger and made of aerogel, and a cavity is formed in the middle of the heat insulation plate. The dust removing mechanism is used for removing dust on the top of the heat insulation plate; the dust removal mechanism comprises a movable dust collection plate, supports vertically arranged at the two ends of the dust collection plate, a rotating shaft rotationally arranged between the two supports, a brush arranged on the outer wall of the rotating shaft, a motor and a dust collector. The motor is arranged on the side, away from the rotating shaft, of one support, and an output shaft of the motor is coaxially and fixedly connected with one end of the rotating shaft. The dust collection plate is located above the rotating shaft, and the dust collector is arranged at the top of the dust collection plate and used for collecting dust; the cold loss amount of the plate-fin heat exchanger is reduced, the heat exchange efficiency is improved, the buffering and damping functions are achieved, and the stability of the plate-fin heat exchanger is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to plate fin heat exchanger technical field, concretely to a plate fin heat exchanger of cold loss reduction. BACKGROUND

[0002] Plate fin heat exchanger mainly relies on fin for the heat exchange operation between two fluids, through the search, the patent of application no. 202122051042.6 discloses a kind of plate fin heat exchanger of cold loss reduction, it includes fin, baffle, seal and heat insulation board;

[0003] The above prior art adopts aerogel to make the heat insulation board with low thermal conductivity, which can prevent the heat of external air from entering the interior of the heat exchanger, thereby reducing the cold loss, but there are still the following problems in actual use:

[0004] Firstly, after being used for a period of time, it is inconvenient to effectively clean the dust and impurities attached to the surface of the heat insulation board, and in the case of a large amount of dust, the cold loss reduction effect of the heat insulation board will be poor.

[0005] Secondly, the plate fin heat exchanger does not have a buffering and damping function. When the fluid flows through the plate of the plate fin heat exchanger and enters the next plate, a certain flow resistance will be generated, thereby slowing down the flow rate at the inlet and increasing the flow rate at the outlet. When the flow rate suddenly changes or reverses, the inertia of the fluid will cause the pressure in the pipeline to rapidly increase, and at this time, the attenuation ability of the pipeline is extremely weak, and water hammer is likely to occur. The change and impact of such pressure are likely to cause the plate fin heat exchanger to vibrate. SUMMARY

[0006] The utility model aims at providing a kind of plate fin heat exchanger of cold loss reduction, reduce the cold loss of plate fin heat exchanger, improve heat exchange efficiency, and have buffering and damping function, improve the stability of plate fin heat exchanger.

[0007] To achieve the above object, the utility model provides the following technical scheme: a kind of plate fin heat exchanger of cold loss reduction, including plate fin heat exchanger body, the heat insulation board made of aerogel in the top of plate fin heat exchanger, the middle part of the heat insulation board is provided with cavity, the cavity is arranged in vacuum state;Further including dust cleaning mechanism for the dust on the top of heat insulation board;The dust cleaning mechanism includes movable dust absorption plate, support vertically arranged at the both ends of the dust absorption plate, rotating shaft rotatably arranged between the two supports, brush arranged on the outer wall of the rotating shaft, motor, dust collector;The motor is arranged on the side of one of the supports away from the rotating shaft, and the output shaft of the motor is coaxially fixedly connected with one end of the rotating shaft;The dust absorption plate is located above the rotating shaft, and the dust collector is arranged on the top of the dust absorption plate for collecting dust;The bottom of the plate fin heat exchanger body is provided with a damping and buffering mechanism.

[0008] Preferably, the sandwich plate is internally provided with a dust suction cavity, the bottom of the sandwich plate is provided with a dust suction hole communicating with the dust suction cavity, and the output end of the dust suction machine is communicated with the dust suction cavity through a pipeline.

[0009] Preferably, the plate-fin heat exchanger body is provided with slide rails on both sides of the plate-fin heat exchanger body along the width direction, slide grooves are formed in the slide rails, and slide blocks are slidably arranged in the slide grooves.

[0010] Preferably, the slide rail is provided with a telescopic device on one side, and the output end of the telescopic device extends into the slide groove of the slide rail and is fixedly connected with the slide block.

[0011] Preferably, the telescopic device is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

[0012] Preferably, the shock-absorbing and buffering mechanism comprises a buffering seat, a base, guide rods, shock-absorbing springs, limiting nuts and damping spring shock absorbers; the buffering seat is arranged at the bottom of the plate-fin heat exchanger body, the base is arranged below the buffering seat, the guide rods are vertically arranged at four corners of the top of the base, the shock-absorbing springs are sleeved on the top of the guide rods, and the two ends of the shock-absorbing springs are fixedly connected with the bottom of the buffering seat and the top of the base respectively, the upper end of the guide rod penetrates through the buffering seat and is threadedly connected with the limiting nut, and the damping spring shock absorbers are arranged between the bottom of the buffering seat and the top of the base in front and back.

[0013] Preferably, the shock-absorbing and buffering mechanism comprises a buffering seat, a base, guide rods, shock-absorbing springs, limiting nuts and damping spring shock absorbers; the buffering seat is arranged at the bottom of the plate-fin heat exchanger body, the base is arranged below the buffering seat, the guide rods are vertically arranged at four corners of the top of the base, the shock-absorbing springs are sleeved on the top of the guide rods, and the two ends of the shock-absorbing springs are fixedly connected with the bottom of the buffering seat and the top of the base respectively, the upper end of the guide rod penetrates through the buffering seat and is threadedly connected with the limiting nut, and the damping spring shock absorbers are arranged between the bottom of the buffering seat and the top of the base in front and back.

[0014] Compared with the prior art, the plate-fin heat exchanger has the following beneficial effects:

[0015] 1. The heat-insulating plate made of aerogel is provided with a cavity in a vacuum state, the number of gas molecules is greatly reduced in the vacuum state, the heat transferred through gas conduction and convection is greatly reduced, the vacuum environment in the plate is effectively maintained, the excellent heat-insulating performance is further ensured, the cold loss of the plate-fin heat exchanger is reduced, and the heat exchange efficiency is improved.

[0016] 2. The utility model discloses a starting motor and dust collector, the rotary shaft drives the brush to rotate, and the dust on the heat insulation plate is easy to brush off, so that the dust is separated from the heat insulation plate, when the dust collector operates, the suction cavity and the suction hole produce suction force, and the dust above the heat insulation plate is easy to collect in the dust collector, so that the dust is prevented from floating on the heat insulation plate again and falling on other parts of the plate-fin heat exchanger body or floating around, and the telescopic device is started to push the sliding block to slide in the sliding groove of the slide rail, so that the dust removal mechanism is easy to adjust, and the dust on the heat insulation plate is easy to clean comprehensively.

[0017] 3. The utility model discloses a damping buffer mechanism, the plate-fin heat exchanger body has the buffering damping effect, can improve the stability of the plate-fin heat exchanger body, and reduce the vibration amplitude of the plate-fin heat exchanger body caused by water hammer effect. ACCURACY

[0018] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiment or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion.

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

[0020] Figure 2 It is the structure schematic diagram of the utility model. Figure 1 It is the structure schematic diagram of the utility model.

[0021] Figure 3 It is the sectional structure schematic diagram of the heat insulation plate of the utility model.

[0022] Figure 4 It is the sectional structure schematic diagram of the dust collection plate of the utility model.

[0023] Mark in the drawing: 1, plate-fin heat exchanger body, 2, heat insulation plate, 3, cavity, 4, dust collection plate, 5, support, 6, rotary shaft, 7, brush, 8, motor, 9, dust collector, 10, damping buffer mechanism, 11, suction cavity, 12, suction hole, 13, slide rail, 14, sliding block, 15, telescopic device, 16, buffer seat, 17, base, 18, guide rod, 19, damping spring, 20, limit nut, 21, damping spring shock absorber, 22, U-shaped rod, 23, buffer spring, 24, sliding sleeve, 25, interface arm, 26, interface seat. SPECIFIC EMBODIMENT

[0024] Please refer to Figures 1 to 4The plate-fin heat exchanger capable of reducing cold loss comprises a plate-fin heat exchanger body 1, an insulating plate 2 made of aerogel and arranged at the top of the plate-fin heat exchanger, a cavity 3 is formed in the middle of the insulating plate 2, and the cavity 3 is arranged in a vacuum state; and a dust cleaning mechanism for the top of the insulating plate 2; the dust cleaning mechanism comprises a movable dust suction plate 4, a support 5 vertically arranged at both ends of the dust suction plate 4, a rotating shaft 6 rotatably arranged between the two supports 5, a brush 7 arranged on the outer wall of the rotating shaft 6, a motor 8 and a dust collector 9; the motor 8 is arranged on the side of one of the supports 5 away from the rotating shaft 6, and the output shaft of the motor 8 is coaxially and fixedly connected with one end of the rotating shaft 6; the dust suction plate 4 is located above the rotating shaft 6, and the dust collector 9 is arranged on the top of the dust suction plate 4 and used for collecting dust; and a damping and buffering mechanism 10 is arranged at the bottom of the plate-fin heat exchanger body 1.

[0025] In the embodiment, the insulating plate 2 made of aerogel has heat insulation effect and shielding effect on heat radiation; the cavity 3 in the vacuum state is arranged in the insulating plate 2 made of aerogel; in the vacuum state, the number of gas molecules is greatly reduced, the heat transferred through gas conduction and convection is greatly reduced, the vacuum environment in the plate is effectively maintained, the excellent heat insulation performance is further ensured, the cold loss of the plate-fin heat exchanger is reduced, and the heat exchange efficiency is improved; when the dust on the insulating plate 2 is cleaned, the motor 8 and the dust collector 9 are started, the rotating shaft 6 drives the brush 7 to rotate, the dust falling or adhering to the insulating plate 2 is easily brushed off, the dust is separated from the insulating plate 2, the dust suction plate 4 generates suction force when the dust collector 9 operates, the flying dust is easily quickly collected, the dust is prevented from floating again to the insulating plate 2, falling to other parts of the plate-fin heat exchanger body 1 or floating around, and the dust cleaning mechanism is mechanically moved, so that the dust on the insulating plate 2 is easily cleaned.

[0026] As a technical optimization scheme of the utility model, a dust suction cavity 11 is formed in the interlayer of the dust suction plate 4, a dust suction hole 12 in communication with the dust suction cavity 11 is formed in the bottom of the dust suction plate 4, and the output end of the dust collector 9 is communicated with the dust suction cavity 11 through a pipeline.

[0027] In the embodiment, the dust suction cavity 11 and the dust suction hole 12 generate suction force when the dust collector 9 is started, so that the dust above the insulating plate 2 is easily collected into the dust collector 9.

[0028] As a technical optimization scheme of the utility model, the plate-fin heat exchanger body 1 is symmetrically provided with slide rails 13 along the width direction, slide grooves of the slide rails 13 are slidably provided with slide blocks 14, and the top of the slide block 14 is fixedly connected with the bottom of the support 5.

[0029] In the embodiment, the support 5 is slid through the slide block 14 and the slide rail 13, the position of the dust cleaning mechanism is further easily moved and adjusted by moving the slide block 14.

[0030] As a technical optimization scheme of the utility model, one side of the slide rail 13 is equipped with the telescopic device 15, the output end of the telescopic device 15 extends into the sliding groove of the slide rail 13 and is fixedly connected with the sliding block 14;The telescopic device 15 is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

[0031] In the embodiment: start the telescopic device 15, push the sliding block 14 to slide in the sliding groove of the slide rail 13, easily adjust the dust removal mechanism, facilitate the dust removal mechanism to clean the dust on the top of the heat insulation plate 2.

[0032] As a technical optimization scheme of the utility model, the damping buffer mechanism 10 includes the buffer seat 16, the base 17, the guide rod 18, the damping spring 19, the limiting nut 20, the damping spring shock absorber 21;The buffer seat 16 is arranged at the bottom of the plate-fin heat exchanger body 1, the base 17 is located below the buffer seat 16, the guide rod 18 is vertically arranged at the four corners of the top of the base 17, the damping spring 19 is sleeved on the top of the guide rod 18, and the two ends of the damping spring 19 are fixedly connected with the bottom of the buffer seat 16 and the top of the base 17 respectively, and the upper end of the guide rod 18 penetrates through the buffer seat 16 and is threadedly connected with the limiting nut 20;The damping spring shock absorber 21 is arranged between the bottom of the buffer seat 16 and the top of the base 17 in front and back arrangement.

[0033] In the embodiment: the vibration force generated by the plate-fin heat exchanger body 1 is transmitted to the damping buffer mechanism 10, the damping spring 19 and the damping spring shock absorber 21 are responsible for absorbing vibration and storing energy, and the jumping of the spring is inhibited, the kinetic energy accumulated by the spring is consumed, thereby the damping effect is achieved, and the stability of the plate-fin heat exchanger body 1 can be improved.

[0034] As a technical optimization scheme of the utility model, the damping spring shock absorber 21 is provided with the U-shaped rod 22 with the opening downward, the buffer spring 23, the sliding sleeve 24, the connecting arm 25 and the connecting seat 26 on the left and right sides;The U-shaped rod 22 is arranged on the top of the base 17, the buffer spring 23 is sleeved on the U-shaped rod 22, the sliding sleeve 24 is symmetrically arranged in groups on the two ends of the buffer spring 23 and is slidably connected with the U-shaped rod 22, the connecting arm 25 is rotatably arranged on the sliding sleeve 24, the other end of the connecting arm 25 is rotatably connected with the connecting seat 26, and the connecting seat 26 is arranged on the bottom of the buffer seat 16.

[0035] In the embodiment: when the buffer seat 16 above the base 17 vibrates, the angle of the connecting arm 25 changes, the vibration force is transmitted to the sliding sleeve 24 and the connecting arm 25, and when the sliding sleeve 24 and the buffer spring 23 reciprocate and slide, the vibration force generated by the plate-fin heat exchanger can be reduced.

[0036] The working principle and use process of the utility model:

[0037] The heat insulation plate 2 made of aerogel has heat insulation function and can shield heat radiation. The cavity 3 in vacuum state is arranged in the heat insulation plate 2 made of aerogel. In the vacuum state, the number of gas molecules is greatly reduced, the heat transferred through gas conduction and convection is greatly reduced, the vacuum environment in the plate is effectively maintained, the excellent heat insulation performance of the plate is further ensured, the cold loss of the plate-fin heat exchanger is reduced, and the heat exchange efficiency is improved. When the dust on the heat insulation plate 2 is cleaned, the motor 8 and the dust collector 9 are started, the rotating shaft 6 drives the brush 7 to rotate, the dust falling or adhering to the heat insulation plate 2 is easily brushed off, the dust is separated from the heat insulation plate 2, the dust collector 9 is operated, the suction force is generated in the dust suction cavity 11 and the dust suction hole 12, the dust above the heat insulation plate 2 is easily collected into the dust collector 9, the dust is prevented from being scattered on the heat insulation plate 2 again, falling on other parts of the plate-fin heat exchanger body 1 or scattering around, and the telescopic device 15 is started, the sliding block 14 is pushed to slide in the sliding groove of the sliding rail 13, the dust cleaning mechanism is easily adjusted, and the dust on the heat insulation plate 2 is easily cleaned.

[0038] The above is only a preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A plate-fin heat exchanger capable of reducing cold failure, comprising a plate-fin heat exchanger body (1), and an insulating plate (2) made of aerogel and arranged at the top of the plate-fin heat exchanger, characterized in that: The middle part of the heat insulation plate (2) is provided with a cavity (3) in a vacuum state; a dust cleaning mechanism for the top of the heat insulation plate (2) is further included; the dust cleaning mechanism includes a movable dust absorption plate (4), a support (5) vertically arranged at both ends of the dust absorption plate (4), a rotating shaft (6) rotatably arranged between the two supports (5), a brush (7) arranged on the outer wall of the rotating shaft (6), a motor (8), and a dust absorption machine (9); the motor (8) is arranged on the side of one of the supports (5) away from the rotating shaft (6), and the output shaft of the motor (8) is coaxially and fixedly connected with one end of the rotating shaft (6); the dust absorption plate (4) is located above the rotating shaft (6), and the dust absorption machine (9) is arranged on the top of the dust absorption plate (4) to collect dust; the plate-fin heat exchanger body (1) is provided with a damping buffer mechanism (10) at the bottom.

2. The plate-fin heat exchanger capable of reducing cold loss according to claim 1, characterized in that: A dust absorption cavity (11) is arranged in the interlayer of the dust absorption plate (4), a dust absorption hole (12) in communication with the dust absorption cavity (11) is arranged at the bottom of the dust absorption plate (4), and the output end of the dust absorption machine (9) is in communication with the dust absorption cavity (11) through a pipeline.

3. The plate-fin heat exchanger of claim 1, wherein: Symmetrical two sides of the plate-fin heat exchanger body (1) are provided with slide rails (13) in the width direction, slide blocks (14) are slidably arranged in the sliding grooves of the slide rails (13), and the top of the slide blocks (14) is fixedly connected with the bottom of the supports (5).

4. The plate-fin heat exchanger of claim 3, wherein: One side of the slide rail (13) is provided with a telescopic device (15), and the output end of the telescopic device (15) extends into the sliding groove of the slide rail (13) and is fixedly connected with the slide block (14).

5. The plate-fin heat exchanger of claim 4, wherein: The telescopic device (15) is an electric telescopic rod, a pneumatic telescopic rod or a hydraulic telescopic rod.

6. The cold-loss reducing plate-fin heat exchanger according to claim 1, characterized in that: The damping buffer mechanism (10) includes a buffer seat (16), a base (17), a guide rod (18), a damping spring (19), a limiting nut (20), and a damping spring shock absorber (21); the buffer seat (16) is arranged at the bottom of the plate-fin heat exchanger body (1), the base (17) is located below the buffer seat (16), the guide rod (18) is vertically arranged at the four corners of the top of the base (17), the damping spring (19) is sleeved on the top of the guide rod (18), and the two ends of the damping spring (19) are fixedly connected with the bottom of the buffer seat (16) and the top of the base (17), respectively, the upper end of the guide rod (18) penetrates through the buffer seat (16) and is threadedly connected with the limiting nut (20); and the damping spring shock absorber (21) is arranged in front of and behind the buffer seat (16) and the top of the base (17).

7. The plate-fin heat exchanger of claim 6, wherein: The left and right sides of the damping spring shock absorber (21) are provided with opening downward U-shaped rods (22), buffer springs (23), sliding sleeves (24), connecting arms (25) and connecting seats (26); the U-shaped rods (22) are arranged on the top of the base (17), the buffer springs (23) are sleeved on the U-shaped rods (22), the sliding sleeves (24) are symmetrically arranged in groups on the two ends of the buffer springs (23) and are in sliding connection with the U-shaped rods (22), the connecting arms (25) are rotatably arranged on the sliding sleeves (24), the other ends of the connecting arms (25) are rotatably connected with the connecting seats (26), and the connecting seats (26) are arranged on the bottom of the buffer seat (16).

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