CN220649179U - Fin heat exchanger for air source high-temperature heat pump - Google Patents

Abstract

The utility model provides a fin heat exchanger for an air source high-temperature heat pump, which belongs to the technical field of subway scheduling and comprises the following components: the heat exchange device comprises a base, wherein a shell with an opening at the top is arranged above the base, the shell is connected with a heat exchange tube, fins are coaxially fixed on the outer wall of the heat exchange tube, the heat exchange device further comprises a first dust removal device, the first dust removal device comprises bearing plates positioned at the front side and the rear side of the heat exchange tube, the bearing plates can move up and down along the shell, an air jet tube is fixedly arranged on the bearing plates, and the air jet tube is fixedly connected with an air jet head; the dust collector comprises a heat exchange tube, a first dust collector and a second dust collector, wherein the first dust collector comprises a roller shaft positioned at the front side and the rear side of the heat exchange tube, the roller shaft can move up and down in the shell, and an ash cleaning brush is fixedly arranged on the outer wall of the roller shaft. The first dust removing device can blow off floating dust adhered to the heat exchange tubes and the fins; the second dust removing device can remove dust firmly adhered to the heat exchange tube and the fins.

Description

Fin heat exchanger for air source high-temperature heat pump

Technical Field

The utility model belongs to the technical field of heat exchangers, and particularly relates to a fin heat exchanger for an air source high-temperature heat pump.

Background

The fin heat exchanger is widely applied in the industrial field, is a main device in a hot air device, is mainly used for heating air in a drying system, and can be used for heat exchange, such as steam or hot water, heat conducting oil and the like. In the waste heat recovery system of the thermal power plant, an air source high-temperature heat pump and a fin heat exchanger are usually required to be matched with each other.

In the patent document with the application number of CN202120224475.4, a fin heat exchanger is disclosed, the heat exchanger comprises a shell, a heat exchange tube is arranged in the shell, fins are coaxially fixed on the outer wall of the heat exchange tube, rotatable roll shafts are arranged on two sides of the heat exchange tube at the upper part in the shell, dust screens are adhered to the roll shafts through glue, and the space of the shell on two sides of the heat exchange tube is shielded through the dust screens, so that dust in air is prevented from falling on the fins.

However, when the above-mentioned document is in use, the dust screen is required to separate the heat exchange tube from the external space of the casing, so that the external air of the casing needs to enter the casing through the dust screen to exchange heat, but the dust screen can generate a certain resistance when the air passes through, thereby blocking the air from entering the casing to a certain extent and reducing the heat exchange efficiency.

Disclosure of Invention

The utility model provides a fin heat exchanger for an air source high-temperature heat pump, which aims to solve the problem that a dust screen in the prior art reduces the heat exchange efficiency of the fin heat exchanger. Through the first dust removing device, floating dust on the heat exchange tube and the fins can be removed firstly; dust firmly adhered to the heat exchange tube and the fins can be removed through the second dust removing device; meanwhile, the first dust removing device and the second dust removing device can not obstruct air from entering the shell, and heat exchange efficiency can not be reduced.

The self-cleaning apron conveyor adopts the following technical scheme:

the utility model provides a fin heat exchanger for an air source high-temperature heat pump, which comprises: the device comprises a base, wherein an opening is formed in the top of the base, a shell with the opening at the top is arranged above the base, the shell is connected with a heat exchange tube, fins are coaxially fixed on the outer wall of the heat exchange tube, the device further comprises a first dust removing device, the first dust removing device comprises bearing plates positioned on the front side and the rear side of the heat exchange tube, the bearing plates can move up and down along the shell, an air jet tube is fixedly arranged on the bearing plates, the air jet tube is fixedly connected with an air jet head, and the air jet direction of the air jet head faces the heat exchange tube;

the dust collector also comprises a second dust collector, wherein the second dust collector comprises roll shafts positioned on the front side and the rear side of the heat exchange tube, the roll shafts can move up and down in the shell, and ash cleaning brushes are fixedly arranged on the outer walls of the roll shafts.

The fin heat exchanger for the air source high-temperature heat pump can blow off floating dust on the heat exchange tube and the fins through the air jet tube and the air jet head which move up and down; the roller shaft can drive the ash cleaning brush to rotate, and the roller shaft drives the rotating ash cleaning brush to move up and down so as to remove dust adhered on the heat exchange tube and the fins.

Further, the bearing plate is fixedly connected with an electric telescopic rod, and the electric telescopic rod penetrates through the bottom of the shell and is connected with the bottom plate of the base. In the further technical scheme, the electric telescopic rod can drive the bearing plate, the air jet pipe and the air jet head to move up and down in the shell.

Further, the air ejector is fixedly communicated with an air delivery pipe, and one end, far away from the air ejector, of the air delivery pipe is fixedly communicated with an air pump. In the further technical scheme, the air pump supplies air to the air spraying pipe and the air spraying head through the air conveying pipe.

Further, the both ends of roller are provided with the mounting panel, the roller with the mounting panel rotates to be connected, and the fixed rotating electrical machines that is provided with in position that the mounting panel corresponds the roller, the output shaft of rotating electrical machines and the central point put fixed connection of roller one end. In the further technical scheme, the rotating motor drives the roll shaft to rotate, so that the ash cleaning brush is driven to rotate.

Further, vertical sliding grooves are formed in the side walls of the shell, which are positioned on the left side and the right side of the heat exchange tube, one sliding groove is rotationally connected with a screw rod, the screw rod is in threaded connection with a first sliding block capable of sliding in the sliding groove, and the first sliding block is fixedly connected with the mounting plate; a sliding rod is arranged in the other sliding groove, the sliding rod penetrates through a second sliding block which can slide in the sliding groove, and the second sliding block is fixedly connected with the mounting plate. In the further technical scheme, the screw rod rotates to drive the first sliding block to move up and down in the sliding groove, so that the mounting plate, the roll shaft and the ash cleaning brush are driven to move up and down in the machine shell.

Further, the top of the screw rod extends to the upper side of the sliding groove, and the top of the screw rod is fixedly connected with a first gear. In the further technical scheme, the first gear drives the screw rod to rotate, so that the sliding block is driven to move up and down in the sliding groove.

Further, the side wall of the shell is fixedly connected with a forward and reverse rotating motor, an output shaft of the forward and reverse rotating motor is fixedly connected with a second gear, and the second gear is meshed with the first gear. In the further technical scheme, the forward and reverse rotation motor can drive the second gear to rotate, so that the first gear rotates.

The beneficial effects of the utility model are as follows: 1. in the fin heat exchanger for the air source high-temperature heat pump, the air jet pipe and the air jet head which move up and down can blow off floating dust on the heat exchange pipe and the fins; 2. in the fin heat exchanger for the air source high-temperature heat pump, the dust adhered on the heat exchange tube and the fins can be completely removed by the rotating ash removal hairbrush which moves up and down; 3. in the fin heat exchanger for the air source high-temperature heat pump, the first dust removing device and the second dust removing device can not obstruct air from entering the shell, so that heat exchange efficiency is prevented from being reduced.

Drawings

Fig. 1 is a schematic structural diagram of a fin heat exchanger for an air source high temperature heat pump according to an embodiment of the present utility model;

fig. 2 is a schematic view of another angle of a fin heat exchanger for an air source high temperature heat pump according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a first dust removing device of a fin heat exchanger for an air source high temperature heat pump according to an embodiment of the present utility model;

fig. 4 is a schematic cross-sectional view of a second dust collector of a fin heat exchanger for an air source high temperature heat pump according to an embodiment of the present utility model.

In the accompanying drawings: 1 represents a base, 2 represents a casing, 3 represents a heat exchange tube, 4 represents a fin, 5 represents a bearing plate, 6 represents an air injection tube, 7 represents an air injection head, 8 represents a roll shaft, 9 represents an ash brush, 10 represents an electric telescopic rod, 11 represents an air delivery tube, 12 represents an air pump, 13 represents a mounting plate, 14 represents a rotary motor, 15 represents a chute, 16 represents a screw rod, 17 represents a first sliding block, 18 represents a first gear, 19 represents a forward and reverse motor, 20 represents a second gear, 21 represents a second sliding block, and 22 represents a sliding rod.

Detailed Description

The objects, technical solutions and advantages of the present utility model will become more apparent by the following detailed description of the present utility model with reference to the accompanying drawings. In the following description, descriptions of well-known structures and techniques are omitted so as not to unnecessarily obscure the concepts of the present utility model.

Referring to fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a schematic structural diagram of a fin heat exchanger for an air source high temperature heat pump according to an embodiment of the present utility model, fig. 2 is a schematic structural diagram of another angle of the fin heat exchanger for an air source high temperature heat pump according to an embodiment of the present utility model, fig. 3 is a schematic structural diagram of a first dust removal device of the fin heat exchanger for an air source high temperature heat pump according to an embodiment of the present utility model, and fig. 4 is a schematic sectional structural diagram of a second dust removal device of the fin heat exchanger for an air source high temperature heat pump according to an embodiment of the present utility model. According to fig. 1 and 2, the utility model discloses a base 1, this lease 1 is last to be fixedly provided with casing 2, and the opening has been seted up at the top of this casing 2, and casing 2 fixedly connected with heat exchange tube 3, heat exchange tube 3 are wavy on casing 2, and the coaxial fixedly connected with a plurality of fins 4 of outer wall of the part that heat exchange tube 3 is located casing 2, a plurality of fins 4 equidistance distributes on the outer wall of heat exchange tube 3.

In order to facilitate removal of dust on the heat exchange tubes 3 and the fins 4, reduction of heat exchange efficiency due to dust attached to the heat exchange tubes 3 and the fins 4 is prevented, and the heat exchange device further comprises a first dust removing device and a second dust removing device.

When the first dust removing device is specifically arranged, reference may be made to fig. 1, fig. 2 and fig. 3, and according to fig. 1, fig. 2 and fig. 3, the first dust removing device includes two horizontal bearing plates 5 located at the bottom in the casing 2, the two bearing plates 5 are respectively located at the front and rear sides of the heat exchange tube 3, air injection tubes 6 are fixedly arranged on opposite sides of the two bearing plates 5 along the length direction thereof, a plurality of air injection heads 7 are fixedly connected to each air injection tube 6, and the air injection direction of each air injection head 7 faces the heat exchange tube 3; with continued reference to fig. 3, a cavity is formed in the base 1, an opening communicated with the cavity is formed in the top of the base 1, a vertical electric telescopic rod 10 is fixedly connected to the position of each bearing plate 5 in the base 1, and the top end of each electric telescopic rod 10 is fixedly connected with the middle position of the corresponding bearing plate 5; for the convenience to air feed to the air duct 6, continue to refer to fig. 1 and 2, the lateral wall fixedly connected with air pump 12 of casing 2, this air pump 12 can adopt the high-pressure air pump commonly used in the prior art, and every air duct 6 all is linked together with the gas outlet of air pump 12 through air duct 11, for the convenience in this application air duct 11 removes along with loading board 5, air duct 11 can adopt the hose commonly used in the prior art, and the length of air duct 11 is the same with the distance between air duct 6 and the air pump 12 when loading board 5 rises to casing 2 top at least.

When the second dust removing device is specifically arranged, referring to fig. 1, 2 and 4, according to fig. 1, 2 and 4, the second dust removing device comprises two roller shafts 8 positioned at the top opening of the casing 2, the two roller shafts 8 are positioned at the front side and the rear side of the heat exchange tube 3, the outer wall of each roller shaft 8 is fixedly connected with an ash cleaning brush 9, and the ash cleaning brushes 9 are densely distributed on the outer wall of the whole roller shaft 8; with continued reference to fig. 1, 2 and 4, two ends of each roller shaft 8 are provided with mounting plates 13, the roller shafts 8 are rotationally connected with the mounting plates 13, one of the mounting plates 13 is fixedly connected with a rotating motor 14, and an output shaft of the rotating motor 14 penetrates through the corresponding mounting plate 13 and is fixedly connected with the axle center of one end of the roller shaft 8, so that the roller shaft 8 and the ash cleaning brush 9 are driven to rotate by the rotating motor 14; in order to facilitate the driving of the roll shafts 8 and the ash cleaning brushes 9 to move up and down in the machine shell 2, with continued reference to fig. 1, 2 and 4, vertical sliding grooves 15 are formed in the left and right inner walls of the machine shell 2 at positions corresponding to the two ends of each roll shaft 8, a screw rod 16 is rotationally connected to one sliding groove 15 of the two sliding grooves 15 corresponding to each roll shaft 8, the screw rod 16 penetrates through and is in threaded connection with a first sliding block 17, and the first sliding block 17 can slide in the sliding groove 15; with continued reference to fig. 1, 2 and 4, a sliding rod 22 is fixedly disposed in the other sliding slot 15 of the two sliding slots 15 corresponding to each roller 8, the sliding slot 15 is slidably connected with a second sliding block 21, the sliding rod 22 penetrates through the second sliding block 21, and meanwhile, the first sliding block 17 and the second sliding block 21 are fixedly connected with the mounting plate 13 at one end of the corresponding roller 8.

With continued reference to fig. 1, 2 and 4, the top end of each screw 16 extends to the upper portion of the casing 2, and the top end of each screw 16 is fixedly connected with a first gear 18; in order to conveniently drive the first gear 18 to rotate, a forward and reverse rotation motor 19 is fixedly connected to the outer wall of the casing 2 corresponding to the position of each screw rod 16, an output shaft of the forward and reverse rotation motor 19 is fixedly connected with a second gear 20, and the second gear 20 is in meshed connection with the first gear 18.

The working principle of the fin heat exchanger for the air source high-temperature heat pump is as follows: after the application is used for a period of time, the first dust removing device and the second dust removing device can regularly remove dust on the heat exchange tubes 3 and the fins 4, so that the heat exchange tubes 3 and the fins 4 are prevented from being fully covered with dust, and the heat exchange efficiency is reduced.

When dust is removed, floating dust on the heat exchange tube 3 and the fins 4 is blown off through the first dust removing device, specifically, the air pump 12 is started, the air pump 12 compresses and pumps external air into the air pipe 11, high-pressure air in the air pipe 11 enters the air injection pipe 6, and finally the high-pressure air in the air injection pipe 6 is sprayed out to the heat exchange tube 3 and the fins 4 at a high speed through the air injection head 7, so that the floating dust on the heat exchange tube 3 and the fins 4 is taken away through the air flow sprayed out at the high speed; simultaneously, the electric telescopic rod 10 is started, the electric telescopic rod 10 extends, the bearing plate 5 is driven to move upwards, the air spraying pipe 6 and the air spraying head 7 are driven to move upwards while the bearing plate 5 moves upwards, and accordingly floating dust on the heat exchange pipe 3 and the fins 4 in the shell 2 is blown off from bottom to top through the air spraying pipe 6 and the air spraying head 7 which move upwards from bottom to top.

Then get rid of the dust of adhesion on heat exchange tube 3 and the fin 4 through second dust collector, specifically, start two rotating electrical machines 14, drive two roller 8 and rotate in opposite directions, thereby drive two deashing brush 9 and rotate in opposite directions, start two positive and negative rotating electrical machines 19 simultaneously, two positive and negative rotating electrical machines 19 drive two second gears 20 and simultaneously the syntropy rotation, thereby drive two first gears 18 and simultaneously the syntropy rotation, thereby drive two lead screws 16 and simultaneously the syntropy rotation, thereby make first slider 17 move downwards in spout 15, thereby drive mounting panel 13, rotating electrical machines 14, roller 8 and deashing brush 9 move downwards, thereby make pivoted roller 8 and deashing brush 9 move downwards, when pivoted deashing brush 9 moves downwards, pivoted deashing brush 9 can get rid of the dust of adhesion on heat exchange tube 3 and fin 4, thereby reach the mesh of getting rid of the dust on heat exchange tube 3 and the fin 4 completely, prevent that the heat transfer efficiency of this application from reducing.

In the embodiment, the utility model provides the fin heat exchanger for the air source high-temperature heat pump, and dust on the heat exchange tubes and the fins can be completely removed through the first dust removing device and the second dust removing device, so that the heat exchange efficiency is prevented from being reduced due to the dust on the heat exchange tubes and the fins; simultaneously first dust collector and second dust collector in this application can't hinder in the air gets into the casing to do not have the problem that leads to heat exchange efficiency to reduce because of in hindering the air to get into the casing.

The above examples are merely illustrative of the preferred embodiments of the present utility model and are not intended to limit the spirit and scope of the present utility model. Various modifications and improvements of the technical scheme of the present utility model will fall within the protection scope of the present utility model without departing from the design concept of the present utility model, and the technical content of the present utility model is fully described in the claims.

Claims (7)

1. A fin heat exchanger for an air source high temperature heat pump, comprising: base (1), the opening has been seted up at the top of base (1), base (1) top is provided with open-top's casing (2), casing (2) are connected with heat exchange tube (3), the outer wall coaxial fixed with fin (4), its characterized in that of heat exchange tube (3): the heat exchange device comprises a shell (2), and is characterized by further comprising a first dust removal device, wherein the first dust removal device comprises bearing plates (5) positioned on the front side and the rear side of the heat exchange tube (3), the bearing plates (5) can move up and down along the shell (2), air injection tubes (6) are fixedly arranged on the bearing plates (5), the air injection tubes (6) are fixedly connected with jet heads (7), and the jet directions of the jet heads (7) face the heat exchange tube (3);

the dust collector also comprises a second dust collector, the second dust collector comprises a roll shaft (8) positioned at the front side and the rear side of the heat exchange tube (3), the roll shaft (8) can move up and down in the shell (2), and an ash cleaning brush (9) is fixedly arranged on the outer wall of the roll shaft (8).

2. The fin heat exchanger for an air source high temperature heat pump according to claim 1, wherein the bearing plate (5) is fixedly connected with an electric telescopic rod (10), and the electric telescopic rod (10) penetrates through the bottom of the shell (2) and is connected with the bottom plate of the base (1).

3. The fin heat exchanger for the air source high-temperature heat pump according to claim 2, wherein the air injection pipe (6) is fixedly communicated with an air delivery pipe (11), and one end, far away from the air injection pipe (6), of the air delivery pipe (11) is fixedly communicated with an air pump (12).

4. The fin heat exchanger for an air source high temperature heat pump according to claim 1, wherein mounting plates (13) are arranged at two ends of the roller shaft (8), the roller shaft (8) is rotationally connected with the mounting plates (13), a rotating motor (14) is fixedly arranged at a position of the mounting plates (13) corresponding to the roller shaft (8), and an output shaft of the rotating motor (14) is fixedly connected with a central position of one end of the roller shaft (8).

5. The fin heat exchanger for the air source high-temperature heat pump according to claim 4, wherein vertical sliding grooves (15) are formed in the side walls of the shell (2) positioned on the left side and the right side of the heat exchange tube (3), one sliding groove (15) is rotationally connected with a screw rod (16), the screw rod (16) is in threaded connection with a first sliding block (17) capable of sliding in the sliding groove (15), and the first sliding block (17) is fixedly connected with the mounting plate (13); the other sliding groove (15) is internally provided with a sliding rod (22), the sliding rod (22) penetrates through a second sliding block (21) which can slide in the sliding groove (15), and the second sliding block (21) is fixedly connected with the mounting plate (13).

6. The fin heat exchanger for an air source high temperature heat pump according to claim 5, wherein the top end of the screw rod (16) extends to the upper side of the chute (15), and the top end of the screw rod (16) is fixedly connected with a first gear (18).

7. The fin heat exchanger for an air source high temperature heat pump according to claim 6, wherein a forward and reverse rotation motor (19) is fixedly connected to a side wall of the casing (2), a second gear (20) is fixedly connected to an output shaft of the forward and reverse rotation motor (19), and the second gear (20) is meshed with the first gear (18).