CN217657186U

CN217657186U - Granary air conditioning device capable of improving heat transfer efficiency

Info

Publication number: CN217657186U
Application number: CN202221995312.7U
Authority: CN
Inventors: 李睿; 吴卫琴; 闫树权
Original assignee: Suzhou Sujing Anfa Environmental Technology Co ltd
Current assignee: Suzhou Sujing Anfa Environmental Technology Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-10-28
Anticipated expiration: 2032-08-01

Abstract

The utility model discloses a granary air conditioning device for improving heat transfer efficiency, which comprises an evaporator, a first fin, a second fin and a heat-transfer pipe, wherein the first fin is coated with a coating layer; the condenser comprises a first connecting pipe, flat pipes, second fins and a second connecting pipe, wherein the flat pipes are arranged in an array mode along the axial direction of the first connecting pipe and are communicated with the first connecting pipe; the second fin is attached to one side of the flat pipe and fixedly connected with the flat pipe; the plurality of second connecting pipes are arranged in an array form along the axial direction of the first connecting pipe, penetrate through the second fins and are communicated with the first connecting pipe; the two ends of the air compressor are respectively communicated with the evaporator and the condenser; and the fan assembly is at least provided with two fans, and the output ends of the fans are respectively connected with the evaporator and the condenser. The utility model discloses can improve pipeline and fin area of contact in the condenser, and improve heat transfer efficiency.

Description

Granary air conditioning device capable of improving heat transfer efficiency

Technical Field

The utility model belongs to grain depot air conditioning equipment field, in particular to improve heat transfer efficiency's granary air conditioning equipment.

Background

The grain depot air conditioner mainly comprises a compressor, an evaporator, a condenser, a pipeline, a fan, a control system and the like; the working principle is that according to the reverse Carnot cycle principle, the electric energy is used for driving the compressor to compress to form high-temperature gas, the high-temperature gas enters the condenser to release heat energy to air, and the working medium throttles, evaporates and absorbs the heat in the air to achieve the purpose of cooling;

the condenser dissipates the heat of high-temperature and high-pressure refrigerant gas formed after the compression of the compressor into the air, is one of key parts of the grain depot air conditioner, and the heat dissipation performance of the condenser determines the heat absorption capacity of a unit, particularly the heat absorption capacity in a high-temperature environment; at present, the condenser of the existing grain depot air conditioner usually adopts the design that a round pipe penetrates through a fin, so the condenser has the defects of small contact area between the round pipe and the fin and low heat transfer efficiency.

Therefore, there is a need for a granary air conditioning device capable of increasing the contact area between the pipe and the fin in the condenser and increasing the heat transfer efficiency.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: in order to overcome the above deficiency, the utility model aims at providing an improve heat transfer efficiency's granary air conditioning equipment, its simple structure, reasonable in design, easily production uses in a flexible way, can increase the pipeline and the fin area of contact of condenser, and then has improved heat transfer efficiency.

In order to solve the technical problem, the utility model provides an improve heat transfer efficiency's granary air conditioning equipment, include:

an evaporator comprising a first fin coated with a coating layer;

the condenser comprises a first connecting pipe, flat pipes, second fins and a second connecting pipe, wherein the flat pipes are arranged in an array mode along the axial direction of the first connecting pipe and are communicated with the first connecting pipe; the second fins are attached to one side of the flat pipe and fixedly connected with the flat pipe; the plurality of second connecting pipes are arranged in an array form along the axial direction of the first connecting pipe, penetrate through the second fins and are communicated with the first connecting pipe;

the two ends of the air compressor are respectively communicated with the evaporator and the condenser;

and the fan assembly is at least provided with two fans, and the output ends of the fans are respectively connected with the evaporator and the condenser.

Through adopting above-mentioned technical scheme, can prevent that the evaporimeter from taking place oxidation, setting up the water bridge, blowing white powder problem in the use, can increase the area of contact of condenser interior conduit and fin, and then improve heat transfer efficiency, weight reduction, reduction inner volume.

As a preferred mode of the present invention, the first fins comprise copper pipe members, aluminum foil members, and circulation pipes, and the plurality of copper pipe members are arranged in an equidistant array along the length direction; the aluminum foil pieces are sleeved on the copper pipe pieces and connected with the copper pipe pieces, and the coating layers are coated on the aluminum foil pieces; the circulating pipe is communicated with the copper pipe fitting.

Through adopting above-mentioned technical scheme, can be with gas or liquid circulation flow in the copper pipe spare, and then increase heat transfer performance.

As a preferred mode of the utility model, the second fin is connected with flat tub of brazing.

Through adopting above-mentioned technical scheme, can further strengthen the laminating area of second fin and flat pipe, further improve heat transfer efficiency.

As a preferred mode of the utility model, air compressor's one end is linked together with the condenser, air compressor's the other end is linked together with the evaporimeter.

As an optimized mode of the utility model, still include first filtration piece, first filtration piece is installed between air compressor and evaporimeter, just the both ends of first filtration piece are linked together with air compressor, evaporimeter respectively.

Through adopting above-mentioned technical scheme, can separate and keep in remaining liquid in the pipeline when the evaporimeter is gaseous to air compressor leading-in, realize the protection to air compressor.

As an optimized mode of the utility model, the input end of the evaporator is communicated with the output end of the condenser.

As a preferred mode of the utility model, still include that the second filters the piece, the second filters a piece and installs between evaporimeter, condenser, just the second filters the both ends of piece and is linked together with evaporimeter, condenser respectively.

Through adopting above-mentioned technical scheme, can filter the impurity that contains in the pipeline internal fluid.

As a preferred mode of the utility model, still include temperature regulating valve, temperature regulating valve installs between second filter piece, evaporimeter, just temperature regulating valve's both ends are linked together with second filter piece, evaporimeter respectively.

Through adopting above-mentioned technical scheme, stability when can improving the evaporimeter output.

Compared with the prior art, the technical scheme of the utility model have following advantage:

1. the granary air conditioning device capable of improving the heat transfer efficiency can prevent the evaporator from being oxidized, bridging water and blowing white powder in the use process, and can increase the contact area between the second fins and the flat tubes in the condenser, thereby improving the heat transfer efficiency, lightening the weight and reducing the inner volume;

2. the refrigerant liquid in the pipeline can be separated and temporarily stored when the refrigerant liquid returns, so that the protection of the air compressor is realized; impurities in the condensing agent introduced into the condenser by the evaporator can be filtered;

3. the stability of the evaporator output can be improved when the operating environment changes.

Drawings

In order to make the content of the present invention more clearly understood, the present invention will be described in further detail with reference to the following embodiments of the present invention, in conjunction with the accompanying drawings.

Fig. 1 is a front view schematically illustrating a condenser of the present invention.

Fig. 2 is a schematic front view of the evaporator of the present invention.

Fig. 3 is a schematic top view of an evaporator of the present invention.

Fig. 4 is a schematic upper end sectional view of the condenser of the present invention.

Fig. 5 is a schematic view of the principle of the granary air conditioning device of the present invention.

The specification reference numbers indicate: 1. evaporator, 2, condenser, 3, air compressor, 5, rack, 6, first filter, 7, second filter, 8, temperature regulating valve, 11, coating layer, 12, first mounting piece, 13, evaporator input, 14, evaporator output, 20, first connecting pipe, 21, flat pipe, 22, second fin, 23, second connecting pipe, 24, second mounting piece, 25, condenser input, 26, condenser output, 30, air compressor input, 31, air compressor output, 40, first fan, 41, second fan, 60, first filter input, 61, first filter output, 70, second filter input, 71, second filter output, 80, temperature regulating valve input, 81, temperature regulating valve output, 100, copper pipe, 101, aluminum foil, 102, circulation pipe, 400, first fan output, 410, second fan output.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "second" or "first" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting each other through intervening media. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements does not include a limitation to the listed steps or elements but may alternatively include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Example one

Referring to fig. 1-5, the present invention provides an embodiment of a granary air conditioning device for improving heat transfer efficiency, comprising:

the evaporator 1 comprises a first fin 10, wherein the first fin 10 is coated with a coating film layer 11;

the condenser 2 comprises a first connecting pipe 20, flat pipes 21 and second fins 22, wherein the flat pipes 21 are arranged in an array form along the axial direction of the first connecting pipe 20, and the flat pipes 21 are communicated with the first connecting pipe 20; the second fin 22 is attached to one side of the flat tube 21 and fixedly connected with the flat tube 21;

an air compressor 3, both ends of which are respectively communicated with the evaporator 1 and the condenser 2;

and the fan assembly is at least provided with two fans, and the output ends of the fans are respectively connected with the evaporator 1 and the condenser 2.

Referring to fig. 5, the grain depot air conditioning system further comprises a rack 5, and the unit can be any type of rack 5 as long as the unit can bear the grain depot air conditioning device, including but not limited to a shell, a box body and a cabinet, and the specific structural style, size and installation position of the unit are set or adjusted by an operator according to actual production requirements and cost; in the embodiment, a frame type structure is adopted, the galvanized steel plates without zinc flowers are adopted, the surfaces of the galvanized steel plates are sprayed with the antirust paint liquid, fixing screws are adopted for fixing the steel plates, stainless steel screws are adopted, the occurrence of corrosion is avoided, and the service life of the rack 5 is prolonged;

the evaporator 1 further comprises a first mounting piece 12, the first fin 10 is mounted in the first mounting piece 12, and the evaporator 1 is mounted in the rack 5 through the first mounting piece 12; referring to fig. 2-3, the first fin 10 includes a copper pipe 100, an aluminum foil 101, and a circulation pipe 102, wherein a plurality of copper pipes 100 are arranged in an array at equal intervals along a length direction, and the copper pipes 100 are designed as flat pipes 21; the plurality of aluminum foil members 101 are sleeved on the copper pipe member 100 and connected with the copper pipe member 100; the circulation pipe 102 is communicated with the copper pipe member 100, and gas or liquid in the copper pipe member 100 is circulated through the circulation pipe 102; the coating layer 11 is coated on the outer surface of the aluminum foil part 101 and is a corrosion-resistant and hydrophilic functional coating layer 11, so that the defects of oxidation, water bridge erection and white powder blowing in the use process of the first fin 10 are avoided; the coating layer 11 includes, but is not limited to, an aqueous epoxy resin coating, an inorganic zinc-rich primer, an acrylic coating, and a polyurethane coating, and specifically, the type and the number of the coating layers 11 are set or adjusted by an operator according to actual production requirements and costs.

Referring to fig. 1 and 4, the condenser 2 further includes a second mounting part 24, the first connecting pipe 20, the flat pipe 21, the second fin 22 and the second connecting pipe 23 are mounted in the second mounting part 24, the condenser 2 is mounted in the rack 5 through the second mounting part 24, and the condenser output end 26 is communicated with the evaporator input end 13, that is, the first connecting pipe 20 of the condenser 2 is communicated with the copper pipe 100 of the evaporator 1; the flat tube 21 is fixedly connected with the attached second fin 22, and the flat tube 21 is provided with a channel and communicated with the first connecting tube 20; the flat tubes 21 and the second fins 22 which are mutually attached have a structural mode that the condenser 2 has higher heat transfer efficiency, and the weight can be reduced, namely, the condenser can be designed to be smaller and lighter under the same heat exchange amount due to the fact that the heat transfer performance is improved; the internal volume can be reduced, namely the flat pipe 21 design can increase the heat transfer performance and reduce the refrigerant filling, and compared with a common heat exchanger, the internal volume is reduced; the second connecting pipe 23 passes through the second fin 22, and two ends of the second connecting pipe 23 are communicated with the first connecting pipe 20; wherein the heat transfer performance is further increased by the second connection pipe 23.

Specifically, the size, number and installation position of the air compressor 3 are set or adjusted by an operator according to actual production requirements and cost; referring to FIG. 5, the air compressor output 31 is in communication with the condenser input 25 and the air compressor input 30 is in communication with the evaporator output 14; referring to fig. 5, the fan assembly includes a first fan 40 and a second fan 41, the first fan 40 is installed at one side of the evaporator 1, and a first fan output end 400 faces the evaporator 1; the second fan 41 is installed on one side of the condenser 2 far away from the evaporator 1, and the output end 410 of the second fan is far away from the condenser 2; wherein the first fan 40 performs an air blowing operation to the evaporator 1, the second fan 41 performs an air suction operation to the condenser, and the second fan 41 blows air to the outside; in this embodiment, the first fan 40 and the second fan 41 adopt high-pressure centrifugal fans and are driven by external motors, the fan housings and materials of the first fan 40 and the second fan 41 adopt galvanized sheet processing, and the air outlets of the first fan 40 and the second fan 41 adopt a vertical air outlet mode.

Preferably, the operating principle of the granary air conditioning device is as follows:

the compressed high-pressure refrigerant gas is discharged into the condenser 2 through the air compressor 3, and then the second fins 22 of the condenser 2 are matched with the flat tubes 21, so that the heat in the flat tubes 21 is transferred to the nearby air through the second fins 22 to release the heat, and meanwhile, the heat release of the flat tubes 21 and the second fins 22 of the condenser 2 is accelerated through the second fan 41;

the refrigerant liquid after being radiated by the condenser 2 is subjected to heat exchange with the outside air through the first fins 10 of the evaporator 1, the refrigeration effect is achieved through gasification heat absorption, meanwhile, the air heat exchange speed is accelerated through the second fan 41, and the refrigerated air is discharged into a grain depot;

the low-pressure coolant gas after heat exchange of the evaporator 1 is sucked in by an air compressor 3, and the low-pressure coolant gas is compressed;

and circulating the steps.

By adopting the technical scheme, the first fin 10 and the coating layer 11 are arranged, so that the problems of oxidation, water bridging and white powder blowing of the first fin 10 in the using process can be prevented, wherein the water bridging refers to a bridge formed by water drops between the first fin 10 and the coating layer, the more the water bridging exists, the larger the wind resistance of the evaporator 1 is, and the white powder blowing refers to blown aluminum powder, generally powder generated by aluminum foil falling off; through the setting of flat pipe 21, second fin 22, can increase the area of contact between second fin 22 and the flat pipe 21, and then improve heat transfer efficiency, weight reduction, reduction interior volume.

As shown with reference to fig. 5, also comprises a first filter element 6;

wherein the first filter element 6 is mounted between the air compressor 3 and the evaporator 1; the first filter input 60 is in communication with the evaporator output 14 and the first filter output 61 is in communication with the air compressor input 30; the first filter member 6 may be any gas-liquid separation mechanism as long as it can separate gas and liquid, including but not limited to a liquid storage type gas-liquid separator and an air conditioner refrigeration storage unit refrigerant-liquid separator, and specifically, the size, number, and installation position of the first filter member 6 are determined by an operator.

Adopt above-mentioned technical scheme, through first filtering piece 6, can separate and keep in remaining liquid in the pipeline when evaporimeter 1 leads to air compressor 3 is gaseous, realize the protection to air compressor 3.

Example two

The second embodiment is basically the same as the first embodiment, except that the second fins 22 are connected with the flat tubes 21 by brazing;

adopt above-mentioned technical scheme, through brazed connection, reduce second fin 22 and flat tub of 21's clearance, and further increase the area of contact of second fin 22 and flat tub of 21, further improve heat transfer efficiency.

EXAMPLE III

Referring to fig. 5, the third embodiment is substantially the same as the first embodiment except that it further comprises a second filter member 7;

the second filter element 7 is installed between the evaporator 1 and the condenser 2, the input end 70 of the second filter element is communicated with the output end of the first connecting pipe 20 of the condenser 2, and the output end 71 of the second filter element is communicated with the output end of the copper pipe 100 of the evaporator 1; the second filter element 7 may be any type of filter mechanism as long as it can filter impurities, including but not limited to a gas drying bidirectional filter and an activated carbon bidirectional filter, and specifically, the size, number and installation position of the second filter element 7 may be selected by an operator.

Adopt above-mentioned technical scheme, can play impurity filterable effect through the setting of second filtration piece 7.

Referring to fig. 5, a temperature regulating valve 8 is further included;

the temperature regulating valve 8 is installed between the second filter element 7 and the evaporator 1, the input end 80 of the temperature regulating valve is communicated with the output end 71 of the second filter element, and the output end 81 of the temperature regulating valve is communicated with the output end 14 of the evaporator; the temperature control valve may be any type of thermostatic expansion valve as long as it can adjust the flow rate of the refrigerant by sensing the temperature change of the refrigerant output from the evaporator 1, including, but not limited to, an inner balanced thermostatic expansion valve and an outer balanced thermostatic expansion valve, and specifically, the size, number, and installation position of the temperature control valve 8 are selected by an operator.

By adopting the technical scheme, the stability of the evaporator 1 during output can be improved through the arrangement of the expansion valve.

Wherein, the utility model discloses a fixed connection includes but not limited to welding, bolt, fix with screw, and the intercommunication between the device includes but not limited to through hose intercommunication, through hard tube intercommunication, device and device direct intercommunication, and the control system of device, software adopt current grain depot air conditioner control system, software by the operating personnel; the specific fixed connection, the communication among the devices, the operating system and the operating software are set or replaced by operators according to the actual production requirements and cost.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Various other modifications and alterations will occur to those skilled in the art upon reading the foregoing description. This need not be, nor should it be exhaustive of all embodiments. And obvious changes and modifications can be made without departing from the scope of the invention.

Claims

1. A granary air conditioning device for improving heat transfer efficiency, comprising:

an evaporator (1) comprising a first fin (10), said first fin (10) being coated with a coating layer (11);

the condenser (2) comprises a first connecting pipe (20), flat pipes (21), second fins (22) and second connecting pipes (23), wherein the flat pipes (21) are arranged in an array mode along the axial direction of the first connecting pipe (20), and the flat pipes (21) are communicated with the first connecting pipe (20); the second fin (22) is attached to one side of the flat pipe (21) and fixedly connected with the flat pipe (21); the second connecting pipes (23) are arranged in an array form along the axial direction of the first connecting pipe (20), and the second connecting pipes (23) penetrate through the second fins (22) and are communicated with the first connecting pipe (20);

the two ends of the air compressor (3) are respectively communicated with the evaporator (1) and the condenser (2);

and the fan assembly is at least provided with two fans, and the output ends of the fans are respectively connected with the evaporator (1) and the condenser (2).

2. The granary air conditioning device according to claim 1, wherein the first fin (10) comprises a copper pipe (100), an aluminum foil (101) and a circulating pipe (102), wherein a plurality of copper pipes (100) are arranged in an array at equal intervals along the length direction; the aluminum foil pieces (101) are sleeved on the copper pipe piece (100) and connected with the copper pipe piece (100), and the aluminum foil pieces (101) are coated with coating layers (11); the circulating pipe (102) is communicated with the copper pipe fitting (100).

3. A granary air conditioning device according to claim 1, wherein the second fin (22) is brazed to the flat tube (21).

4. The granary air conditioning device according to claim 1, wherein one end of the air compressor (3) is communicated with the condenser (2), and the other end of the air compressor (3) is communicated with the evaporator (1).

5. The granary air conditioning device according to claim 4, wherein the granary air conditioning device is characterized by further comprising a first filter member (6), wherein the first filter member (6) is installed between the air compressor (3) and the evaporator (1), and two ends of the first filter member (6) are respectively communicated with the air compressor (3) and the evaporator (1).

6. A granary air conditioning unit according to claim 1, wherein the evaporator input (13) communicates with the condenser output (26).

7. The granary air conditioning device according to claim 6, wherein the granary air conditioning device further comprises a second filter element (7), the second filter element (7) is installed between the evaporator (1) and the condenser (2), and two ends of the second filter element (7) are respectively communicated with the evaporator (1) and the condenser (2).

8. The granary air conditioning device according to claim 7, wherein the granary air conditioning device comprises a temperature regulating valve (8), the temperature regulating valve (8) is installed between the second filtering member (7) and the evaporator (1), and two ends of the temperature regulating valve (8) are respectively communicated with the second filtering member (7) and the evaporator (1).