CN222378710U - Heating and drying equipment - Google Patents

Abstract

The utility model discloses heating and drying equipment which comprises a heat engine, a cold engine, a return air assembly, an air supply assembly and an air duct, wherein the cold engine is provided with an evaporation fan and an evaporator to form cold air and output the cold air to the external environment, the return air assembly and the air supply assembly are respectively communicated with the heat engine, an air supply channel is formed at the air supply end of the air supply assembly, an air supply hole is formed in the inner wall of the air supply channel, an air return channel is formed at the air return end of the return air assembly, an air return hole is formed in the inner wall of the return air assembly, the air supply end and the air return end are respectively spliced at two ends of the air duct, the air supply channel, the air duct and the air return channel form a heating and drying channel, the two side parts of the heating and drying channel are provided with placing bottoms, the heat engine is provided with a condensing fan and a condenser, the air in the return air in the air assembly flows through the condenser to be changed into hot air, and the hot air is discharged from the heat engine to the air supply assembly and enters the heating and drying channel under the action of the condensing fan. The heating and drying equipment is suitable for production lines, has the advantages of energy conservation and environmental protection, and can also reduce the temperature of the external environment.

Description

Heating and drying equipment

Technical Field

The utility model relates to the technical field of material heating and drying, in particular to heating and drying equipment suitable for heating and drying materials on a production line.

Background

At present, a common production line generally comprises a conveying belt and supporting frameworks positioned at two sides of the conveying belt, wherein the conveying belt can continuously convey materials, such as a steel mesh belt, a high-temperature-resistant plastic belt and the like used in the shoemaking process. In the operation process, the conveyer belt is driven by the driving wheel to operate, and the supporting frameworks at the two sides are provided with flat top surfaces, and basically keep flush with the surface of the conveyer belt. The supporting framework can be used for placing a drying device so as to heat and dry materials on the conveying belt.

At present, a heating and drying device for drying materials on a conveyor belt is generally an electric heating device, the materials are heated and dried by utilizing heat released by an electric heating pipe, the defects of high power consumption, insufficient environmental protection and energy saving exist, in summer, the temperature of the surrounding environment can be increased in the using process by utilizing the electric heating device, and a workshop is more hot.

Therefore, how to design a heating and drying device to be suitable for heating and drying materials on a conveying belt of a production line, and meanwhile, the problems of electricity saving, energy saving and environmental protection can be effectively solved, and the temperature of the surrounding environment can be effectively reduced, so that the heating and drying device is a technical problem to be solved by technicians in the industry.

Disclosure of utility model

In order to solve the technical problems of electricity saving, energy saving and environmental protection and effectively improving the ambient temperature, the utility model provides heating and drying equipment suitable for drying materials on a conveying belt of a production line.

The utility model provides heating and drying equipment which comprises a heat engine, a cold machine, a return air assembly, an air supply assembly and an air duct, wherein the cold machine is provided with an evaporation fan and an evaporator, the temperature of external environment gas is reduced to become cool air when flowing through the evaporator, the cool air is discharged from the cold machine under the action of the evaporation fan to enter the external environment, the return air assembly and the air supply assembly are respectively communicated with the heat engine, the air supply end of the air supply assembly is provided with an air supply channel, the inner wall of the air supply channel is provided with an air supply hole, the air return end of the return air assembly is provided with an air return channel, the inner wall of the air return channel is provided with an air return hole, the air supply end is spliced at one end of the air duct, the air return end is spliced at the other end of the air duct, the air supply channel, the air duct and the air return channel jointly form a heating and drying channel, the heat engine is provided with a condensing fan and a condenser, the temperature of gas in the return air assembly is increased to become hot air when flowing through the condenser, and the hot air is discharged from the heat engine to the air assembly under the action of the condensing fan and enters the heating and drying channel.

In some embodiments, the air return assembly comprises an air return duct and the air return end is connected to the air return duct, and the air supply assembly comprises an air supply duct and the air supply end is connected to the air supply duct;

The heat engine is provided with a return air interface, the return air pipe is connected with the return air interface so as to enable the return air end to be communicated with the heat engine, the heat engine is also provided with an air supply interface, and the air supply pipe is connected with the air supply interface so as to enable the air supply end to be communicated with the heat engine.

In some embodiments, the air tunnel includes a carcass layer and an insulation layer.

Preferably, the framework layer is arranged on the outer layer, and the heat preservation layer is arranged on the inner layer.

Preferably, the air duct is provided with two opposite side wall bodies and a top wall body connecting the two opposite side wall bodies, and the two side wall bodies and the top wall body jointly construct a channel for gas operation.

In some embodiments, one end of the air supply channel is configured as a spliced end, and both sides of the air supply channel are configured to rest on a bottom.

Preferably, the air supply end comprises a top pipe and side pipes connected to two sides of the top pipe, the top pipe and the side pipes are jointly enclosed to form the air supply channel, and the air supply hole is formed in the inner wall of the air supply channel.

Preferably, one end of the return air channel is also configured as a spliced end, and two side parts of the return air channel are also configured as placement bottoms.

Preferably, the return air end also comprises a top pipe and side pipes connected to two sides of the top pipe, the top pipe and the side pipes are jointly enclosed to form the return air channel, and the return air hole is formed in the inner wall of the return air channel.

In some embodiments, the air supply duct and the air return duct are both hard pipes or flexible pipes, preferably, the hard pipes are pipes formed by splicing metal plates, and the flexible pipes are temperature-resistant corrugated air pipes.

In some embodiments, the air supply holes include at least side air supply holes arranged on an inner side wall of the air supply channel.

Preferably, the air supply hole at least comprises a top air supply hole positioned on the inner top wall of the air supply channel.

Preferably, inclined guide sheets for guiding the flow direction of the hot air are arranged in the top air supply hole.

Preferably, the air supply hole is also arranged at the joint of the inner top wall and the inner side wall of the air supply channel.

In some embodiments, the return air holes include at least side return air holes located on an inside wall of the return air channel.

Preferably, the return air hole at least comprises a top return air hole arranged on the inner top wall of the return air channel.

Preferably, the connection part of the inner top wall and the inner side wall of the return air channel is also provided with the return air hole.

In some embodiments, the air supply interface is located on an air supply side wall of the heat engine, preferably centrally located on the air supply side wall of the heat engine.

Preferably, the air supply interface is matched with the size and shape of the outlet of the condensing fan.

Preferably, the outlet end of the condensing fan is arranged at the air supply interface.

Preferably, the return air interface is located on a return air side wall of the heat engine.

Preferably, the air supply side wall body and the air return side wall body are arranged oppositely, and the air supply side wall body and the air return side wall body are two opposite side walls of the heat engine respectively.

Preferably, the edge of the return air interface is close to the edge of the return air side wall body of the heat engine.

Preferably, the condenser is arranged close to the return air interface, and the air inlet side of the condenser faces the return air interface.

In some embodiments, the heating and drying apparatus further includes a circulation system circulating a refrigerant, the circulation system including a compressor, the condenser, and the evaporator connected by a pipe.

The cold machine and the heat machine are split, and are connected through a pipeline of the circulating system, wherein the cold machine is arranged at the top of the heat machine or beside a production line or in a hanging manner, and the heat machine is arranged at the top of the air duct;

Or the cold machine and the heat machine are integrated, wherein the cold machine is positioned at the top of the heat machine, cold and heat isolation is formed between the cold machine and the heat machine through a shared partition plate, and the heat machine is arranged at the top of the air duct.

Preferably, the evaporator is arranged close to one of the side parts of the cooling machine, the air inlet side of the evaporator faces the side part, and the side part is configured as a side wall structure which is a mesh plate.

Preferably, the refrigerator further comprises an electrically controlled operation chamber, and the electrically controlled operation chamber is provided with an operation panel for controlling operation.

In some embodiments, the air supply splicing section and the air duct are flush at the top of each other after being spliced, the return air splicing section and the air duct are flush at the top of each other after being spliced, and the air duct is further provided with a placement top.

The heating and drying equipment provided by the utility model can be directly placed and adapted on a production line conveyor belt through a heat engine and a cold engine which are compact in structure and reasonable in arrangement, and has the following remarkable beneficial effects in terms of overall integration:

1. The utility model is provided with the heating and drying channel, and the two side parts of the heating and drying channel are provided with the placing bottoms, so that the heating and drying channel can be placed on the supporting frameworks at the two sides of the conveying belt of the production line, and the heating and drying equipment can be suitable for the production line;

2. The hot gas generated by the heat engine of the heating and drying equipment can be conveyed into the heating and drying channel to heat and dry materials or attachments on the materials, the temperature of the hot gas is reduced after the materials or attachments on the materials are heated and dried, the gas with the reduced temperature can be returned into the heat engine and changed into the hot gas through the condenser, and the hot gas is circulated and reciprocated in such a way, so that compared with an electric heating mode, the hot gas is more energy-saving, environment-friendly and power-saving, and the energy-saving performance of the whole machine can be effectively improved;

3. according to the utility model, two air circulation flows are formed through the arrangement of the fans, one is the circulation of the air in the heat engine and the heating and drying channel, the other is the circulation of the air in the cold engine and the external environment, and the two circulation are not mutually interfered, so that the energy efficiency of the whole machine is effectively improved;

4. The hot air formed by the heat engine of the heating and drying equipment can heat and dry materials or attachments on the materials, and the cold air formed by the cold machine can be discharged to the external environment to obtain the effect similar to a summer air conditioner, so that the external environment temperature, such as workshop temperature, is finally reduced; compared with the existing mode of utilizing electric heating to obtain heat energy, the utility model has obvious advantages from the aspects of energy conservation, environmental protection and electricity saving, especially the improvement of the external environment temperature;

5. In the refrigerator, vapor in the external environment gas and the external environment gas can be condensed into water drops after passing through the cold evaporator, so that the humidity of cold air can be effectively reduced, the humidity of the external environment gas is reduced after low-humidity cold air is discharged into the external environment, and particularly in a plum rain season, the air humidity is reduced, the refrigerator is easier to heat and dry, more energy and electricity are saved, and the effect is very obvious.

Drawings

Fig. 1 is a schematic diagram of the whole end structure of the heating and drying apparatus according to the first and second embodiments after being placed in a production line;

Fig. 2 is a schematic perspective view of a first orientation of a heating and drying apparatus according to a first and a second embodiment of the present utility model (the production line is not shown, and the piping connection between the heat engine and the cold engine is only simplified and schematically shown).

Fig. 3 is a schematic view of a second perspective view of a heating and drying apparatus (production line and chiller are not shown) according to the first and second embodiments of the present utility model.

Fig. 4 is a schematic perspective view of a first orientation of a heat engine according to a second embodiment of the present utility model.

Fig. 5 is a schematic perspective view of a first orientation of a chiller according to a second embodiment of the present utility model (in which the evaporating fan is shown only in simplified schematic form).

Fig. 6 is a schematic view of a second azimuth perspective structure of a chiller according to a second embodiment of the present utility model (wherein the evaporating fan is shown only in simplified schematic).

Fig. 7 is a schematic view of a second azimuth perspective structure of a heat engine according to a second embodiment of the present utility model.

Fig. 8 is a schematic side view of a chiller according to a second embodiment of the present utility model (the side plates have been removed, and the evaporating blower is shown only in simplified schematic form).

Fig. 9 is a schematic side view of a heat engine according to a second embodiment of the utility model (with side plates etc. removed).

Fig. 10 is a schematic perspective view of an integrated unit according to a fourth embodiment of the present utility model.

Reference numerals

Heating and drying equipment 100, an air duct 200, a conveyor belt 300 and a supporting framework 400;

Condenser 1, evaporator 2, heat engine 3, cooler 4, condensing fan 5, air supply interface 6, return air interface 7, evaporating fan 8, air supply duct 9, air supply end 10, side air supply hole 11, top air supply hole 12, inclined guide piece 13, return air end 14, side return air hole 15, top return air hole 16, return air channel 17, air supply channel 18, channel 19, return air duct 20.

Detailed Description

The following description of the embodiments of the present utility model will be made with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, embodiments of the present utility model. All other embodiments obtained are within the scope of protection of the utility model, which a person of ordinary skill in the art would suggest based on the following examples.

The utility model mainly comprises a circulating system comprising an evaporator, a compressor, a condenser and a throttling element, wherein the refrigerant circulates in the circulating system, when the refrigerant passes through the evaporator and the condenser, the refrigerant exchanges heat with air around the evaporator and the condenser, so that the temperature of air around the evaporator is changed, and through a specific structure such as a heat engine and a cold engine, the corresponding hot air and low-humidity cold air are obtained, the hot air is blown to materials on a conveying belt of a production line under the action of a condensing fan to heat the dried materials or attachments on the surfaces of the materials, and the low-humidity cold air is discharged into the external environment under the action of the evaporating fan, so that the refrigerating effect similar to an air conditioner is provided.

The heating and drying equipment can be placed on the supporting frameworks at two sides of the conveying belt of the production line, and can heat and dry materials on the conveying belt or attachments on the surface of the materials.

Specific examples are set forth below in detail.

Example 1

Referring to fig. 1, a state in which the heating and drying apparatus 100 of the present utility model is located on a production line is illustrated. The production line includes a conveyor belt 300 and supporting frames 400 located at both sides of the conveyor belt 300. The conveyor belt 300 is a carrier continuously running on a production line and used for conveying materials, and has certain temperature resistance, such as a steel mesh belt, a high-temperature belt, a conveyor belt used in the shoemaking process and other various conveyor belts.

As shown in fig. 2 to 3, the state of the heating and drying apparatus 100 of the present utility model in different orientations is illustrated.

In this embodiment, the heat engine 3 is placed on top of the air duct 200, and the cooler 4 is placed on the foundation beside the production line. In this embodiment, the heat engine 3 and the cold engine 4 are split, and are connected through a pipeline of a circulation system.

In this embodiment, the air duct 200 includes a framework layer and an insulation layer. In this embodiment, the framework layer is disposed on the outer layer, and the heat-insulating layer is disposed on the inner layer. The framework layer is arranged on the outer layer and is mainly used for reliably supporting the placed heat engine 3.

In this embodiment, the air duct 200 includes two opposite side walls and a top wall connecting the two opposite side walls, and the two side walls and the top wall together form a gas-supplying channel 19.

Example two

In the present embodiment, regarding the heating and drying apparatus 100, the following is explained in detail with reference to fig. 1 to 9.

In this embodiment, the heating and drying apparatus 100 includes a heat engine 3, a cold engine 4, a return air assembly, an air supply assembly, and an air duct 200. In which the heat engine 3 and the cold engine 4 have the same circulation system, that is to say the components of the circulation system are arranged in the cold engine 4 and the heat engine 3, respectively.

In this embodiment, the refrigerant circulates through the circulation system, and the circulation system includes a condenser 1, an evaporator 2, a compressor, a throttle element, and the like connected by pipes. Because the refrigerant circulates in the circulation system, the refrigerant exchanges heat with the air around the evaporator 2 and the condenser 1 under the action of the compressor, and the refrigerant changes in gas-liquid state, so that energy conversion is realized.

In this embodiment, the refrigerant is freon commonly used for air conditioning, and among many refrigerants, the refrigerating (heat) efficiency thereof is very remarkable, thereby ensuring excellent effects of the tunnel dryer in terms of energy saving, environmental protection, and power saving.

In this embodiment, the heat engine 3 and the cold engine 4 are split, and the cold engine 4 and the heat engine 3 are connected through a pipeline of a circulation system. Wherein the intercooler 4 is disposed on the foundation beside the production line, and the heat engine 3 is disposed on top of the air duct 200. The heat engine 3 has a bottom, the bottom has a flat bottom surface, the air duct 200 also has a flat top surface, and therefore, the heat engine 3 can be stably and reliably placed on the top of the air duct 200 through the flat bottom surface, and the heat engine 3 itself has a certain weight, so that the phenomenon of displacement cannot occur easily.

In this embodiment, the heat engine 3 is provided with a condensing fan 5 and the condenser 1. Since the refrigerant is changed from a gaseous state to a liquid state when entering the condenser 1 and a large amount of heat is released, the temperature of the gas around the condenser 1 increases after absorbing the heat released from the refrigerant and becomes a desired hot gas. And the heat engine 3 is provided with an air supply interface 6 for the hot air in the heat engine 3 to flow out. The heat engine 3 is also provided with a return air interface 7 for air to enter the heat engine 3.

In this embodiment, the cooling machine 4 is provided with an evaporation fan 8 and the evaporator 2, when the ambient air flows through the evaporator 2, the ambient air is absorbed by the refrigerant and becomes cool air, and the cool air is discharged from the cooling machine 4 to enter the ambient environment under the action of the evaporation fan 8, so that the temperature of the ambient environment is reduced. After entering the evaporator 2, the refrigerant changes from a liquid state to a gas state, and absorbs a large amount of heat, so that the air around the evaporator 2 absorbs a large amount of heat and the temperature decreases, thereby changing into cool air. Therefore, the external environment and the gas in the cooler 4 form circulation, the whole circulation is carried out unidirectionally, no turbulent flow is generated, the gas circulation is smooth, no loss is caused, and the energy efficiency of the system is effectively improved.

As the air supply assembly, in this embodiment, the air supply assembly includes an air supply duct 9 and an air supply end 10 connected to the air supply duct 9, and the air supply end 10 is connected to the air supply interface 6 through the air supply duct 9, thereby realizing that the air supply end 10 is connected to the heat engine 3. The air supply duct 9 is provided with a bent section at the outlet, which is approximately at right angles, in order to connect with the top of the air supply end 10. The air supply end 10 is provided with a top pipe and two side pipes, and an air supply channel 18 is defined by the top pipe and the two side pipes. In this embodiment, the air supply duct 9 is a hard tube with a metal texture formed by splicing sheet metal parts. Of course, in other embodiments, other flexible tubing, such as a metallic texture, may be used in place of the rigid tubing in the present embodiment, such as a metallic texture corrugated flexible air hose.

In this embodiment, the bottom of the side pipe of the air supply end 10 is closed to be placed on the supporting frames 400 at both sides of the conveyor belt 300. The end of the air supply end 10, that is, the end of the top pipe and the two side pipes on the same side is also configured as a flat splicing end, and has a flat splicing end wall. The air supply end 10 can be aligned with one end of the air duct 200, and the length of the air duct 200 is increased after the alignment.

When the bottoms of the two side pipes of the air supply end 10 are respectively placed on the supporting frames 400 at two sides of the conveyor belt 300, and the spliced end of the air supply end 10 is aligned with one end of the air duct 200, the channel enclosed between the air supply end 10 and the conveyor belt 300 is equivalent to the air supply channel 18. And the inner wall of the air supply channel 18 is provided with an air supply hole, so that hot air enters the air supply channel 18 from the air supply end 10 through the air supply hole.

For the arrangement of the air supply holes, in this embodiment, the air supply holes include side air supply holes 11 regularly arranged on the inner side wall of the air supply channel 18, top air supply holes 12 located on the inner top wall of the air supply channel 18, and small air supply holes located at the connection part between the inner top wall and the inner side wall of the air supply channel 18. It can be seen that the air supply holes are basically formed in the inner wall of the air supply passage 18 at positions where the air supply holes can be formed, so as to increase the number of the air supply holes to achieve a good air supply rate per unit time.

In this embodiment, for guiding the flow direction of the hot air, the top blowing holes 12 are arranged with inclined guiding sheets 13 for guiding the flow direction of the hot air. After the air supply end is spliced with one end of the air duct 200, the inclined guide piece 13 deflects toward the center of the channel 19 so as to guide the hot air to smoothly enter the channel 19.

In this embodiment, as a specific configuration of the return air assembly, the return air assembly includes a return air duct 20 and a return air end 14 connected to the return air duct 20. The return air end 14 is connected with the return air interface 7 through a return air pipe 20 so that the return air end 14 is communicated with the heat engine 3. The return air end 14 also comprises a top pipe and side pipes connected to two sides of the top pipe, and the top pipe and the side pipes enclose an outlet return air channel 17. In this embodiment, the return air duct 20 is a hard pipe with a metal texture formed by splicing sheet metal plates. Of course, in other embodiments, other flexible tubes, such as metallic textures, may be used instead. Such as corrugated flexible ductwork of metallic texture.

It should be noted that, in this embodiment, the shape and size of the air return end 14 are basically the same as those of the air supply end 10, except that the air return end 14 is spliced at the other end of the air duct 200, and the structure and shape of the air return hole are different. The return air end 14 is also placed on the supporting frames 400 at both sides of the conveyor belt 300 through the bottom of the side pipe, and is aligned and spliced at the other end of the air duct 200 through the splicing end.

When the return air end 14 is aligned with the air duct 200, the two side pipes of the return air end 14 are placed on the supporting frames 400 at two sides of the conveyor belt 300, and the channel enclosed between the return air end 14 and the conveyor belt 300 corresponds to the return air channel 17. And the inner wall of the return air channel 17 is provided with a return air hole, so that the air in the return air channel 17 can enter the return air end 14 through the return air hole.

As a specific arrangement of the return air holes, in this embodiment, the return air holes include side return air holes 15 located on the inner side wall of the return air channel 17, top return air holes 16 regularly arranged on the inner top wall of the return air channel 17, and small return air holes located at the junction of the inner top wall and the inner side wall of the return air channel 17. The return air hole is fully arranged on the inner side wall of the return air channel 17, and the purpose is to increase the air inflow in unit time and improve the energy efficiency of the system. In this embodiment, the side return air hole 15 is a large hole, and the edge of the side return air hole 15 is substantially close to the edge of the side wall, so that a large side return air hole 15 is formed in one side wall, and gas can enter quickly and conveniently.

In the present embodiment, the arrangement of the air supply port 6 and the return port 7 will be described in detail. The air supply interface 6 is centrally located on the air supply side wall body of the heat engine 3, and the size and shape of the air supply interface 6 and the outlet of the condensing fan 5 are matched, in this embodiment, the outlet end of the condensing fan 5 is directly installed in the air supply interface 6. For the convenience of connection, the air supply interface 6 is provided with a connecting flange so as to be connected with an air supply pipe 9. For the return air interface 7, the return air interface 7 is located on the return air side wall body of the heat engine 3, and the edge of the return air interface 7 is close to the edge of the return air side wall body of the heat engine 3, so that the size of the return air interface 7 is as large as possible, so that a sufficient amount of gas enters the heat engine 3 through the return air interface 7. As a setting of the condenser 1, the condenser 1 is arranged close to the return air interface 7, and the air inlet side of the condenser 1 faces the return air interface 7. Whereby the gas can be warmed up after entering over a short distance directly through the condenser 1.

In this embodiment, the evaporator 2 is disposed near one side portion of the cooler 4, the air inlet side of the evaporator 2 faces the side portion, and the side portion is configured as a side wall structure, and the side wall structure is a mesh plate (not labeled), through which the external ambient air can enter the cooler 4, and the mesh plate can protect the evaporator 2 after being disposed. In this embodiment, the refrigerator 4 is further configured with an electrically controlled operation chamber (not shown) configured with an operation panel (not shown) for operation. Whereby the electrically controlled operation of the device can be performed by means of the operation panel.

In this embodiment, the air supply end 10 is aligned and spliced at one end of the air duct 200, and the air return end 14 is aligned and spliced at the other end of the air duct 200. It should be noted that, after the splicing, in order to increase the connection firmness among the three, if the splicing wall can be coated with glue, a screw connection mode can be adopted, etc., the purpose is to increase the connection firmness and avoid the occurrence of air leakage. In addition, after the three are spliced, the tops of the three are kept flush, so that local protruding of the tops is avoided.

After splicing, the air supply end 10, the air duct 200, the air return end 14 and the conveyor belt 300 together enclose a heating and drying channel including an air supply channel 18, a channel 19 and an air return channel 17. The heating and drying channel is similar to a tunnel, so the heating and drying channel can also be called a tunnel type heating and drying channel. In order to be placed on the supporting frames 400 at two sides of the conveyor belt 300, two side portions of the heating and drying channel are provided with placing bottoms, and the two opposite placing bottoms can be stably placed on the corresponding supporting frames 400.

In this embodiment, the tunnel heating and drying channel has two ends, which form an opening state to facilitate the running of the material on the conveyor belt 300. In order to prevent the hot air from exiting the tunnel type heating and drying channel, door curtains are arranged at the two ends so as to prevent the hot air from exiting.

During the air circulation process, the hot air enters the tunnel type heating and drying channel through the air supply end 10 to heat the material on the drying conveyer 300 or the attachments on the material. And the gas which has contributed to the material or the attachment of the material after the heating and drying treatment in the tunnel heating and drying channel is returned to the heat engine 3 through the return air end 14 for further heating. In this embodiment, the gas refers to the hot gas that has contributed to the heating and drying treatment of the material or the attached matter on the material, and the temperature of the hot gas is reduced at this time, and for this purpose, the gas having the reduced temperature is sent to the heat engine 3 again, and is subjected to the temperature raising treatment by the condenser 1 again to become the desired hot gas.

Therefore, the heat engine 3 and the air in the tunnel heating and drying channel form unidirectional circulation, the unidirectional circulation is free from turbulent flow, the air circulation is smooth, the heat loss is less in the circulation process, and the energy efficiency of the system can be effectively increased. It should be noted that, the gas contributing to the material or the attachment of the material for the overheating and drying treatment may be mixed with some non-contributing hot gas or the gas in the tunnel heating and drying passage itself, which are all within the allowable protection range.

In summary, the heating and drying device 100 of the present invention utilizes the gas-liquid change of the refrigerant to achieve the hot air, and compared with the air duct 200 utilizing the electric heating mode, the heating and drying device is more energy-saving, environment-friendly, power-saving and has higher energy efficiency.

Example III

In this embodiment, unlike the second embodiment, the condenser 1 is disposed in the heat engine 3 by using an oblique paving manner, and after oblique paving, the air inlet side area of the condenser 1 is increased compared with that of the vertical setting, so that the air inlet amount in unit time is increased, the heat exchange rate is high, and the energy efficiency of the device is high.

The evaporator 2 is also arranged in the cooler 4 in an inclined paving mode, so that higher energy efficiency can be obtained.

Of course, the condenser and the evaporator may be arranged vertically, obliquely or even horizontally, so as to facilitate the arrangement and improve the energy efficiency.

Example IV

In this embodiment, unlike the second embodiment, the cold machine 4 and the heat machine 3 are integrated, and both together form a unit with an integrated structure. At this time, the cooler 4 is located at the top of the heat engine 3, and the cooler 4 and the heat engine 3 are separated from each other by a shared partition board. Wherein the partition plate forms the bottom plate of the cold machine 4 and the top plate of the heat machine 3.

In this embodiment, the unit of the integrated structure is integrally disposed on the top of the air duct 200.

Of course, in other embodiments, the unit of the integrated structure may be integrally disposed on the foundation beside the production line. At this time, the heat engine of the unit is connected with the air supply end and the air return end through the corrugated flexible air pipe with metal texture.

Example five

In this embodiment, unlike the second embodiment, the heat engine 3 and the cold engine 4 are separate, the heat engine 3 is disposed at the top of the electric heating and drying section 200, and the cold engine 4 is suspended in a workshop, such as above a production line.

Example six

In this embodiment, unlike the second embodiment, the heat engine 3 and the cold engine 4 are split, where the cold engine 4 is placed on top of the heat engine 3 and the heat engine 3 is placed on top of the electrically heated drying section 200.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims (30)

1. A heating and drying device is characterized by comprising a heat engine, a cold machine, a return air assembly, an air supply assembly and an air duct, wherein the cold machine is provided with an evaporation fan and an evaporator, the temperature of outside environment gas is reduced to become cool air when flowing through the evaporator, the cool air is discharged from the cold machine under the action of the evaporation fan to enter the outside environment, the return air assembly and the air supply assembly are respectively communicated with the heat engine, the air supply end of the air supply assembly is provided with an air supply channel, the inner wall of the air supply channel is provided with an air supply hole, the return air end of the return air assembly is provided with a return air channel, the inner wall of the return air channel is provided with a return air hole, the air supply end is spliced at one end of the air duct, the return air end is spliced at the other end of the air duct, the air supply channel, the air duct and the return air channel jointly form a heating and drying channel, two side parts of the heating and drying channel are provided with a placing bottom, the condenser and the condenser are arranged, the temperature of the air in the return air assembly is increased to become hot air when flowing through the heat engine, and the condenser is discharged to the air assembly and enters the heating channel under the action of the condensing fan.

2. The heating and drying apparatus of claim 1, wherein said return air assembly includes a return air duct and said return air end connected to said return air duct, and said supply air assembly includes a supply air duct and said supply air end connected to said supply air duct;

The heat engine is provided with a return air interface, the return air pipe is connected with the return air interface so as to enable the return air end to be communicated with the heat engine, the heat engine is also provided with an air supply interface, and the air supply pipe is connected with the air supply interface so as to enable the air supply end to be communicated with the heat engine.

3. The heating and drying apparatus of claim 1, wherein the air duct includes a skeletal layer and a thermal insulation layer.

4. The heating and drying apparatus of claim 3, wherein the skeleton layer is provided on an outer layer, and the heat-insulating layer is provided on an inner layer.

5. A heating and drying apparatus according to claim 3, wherein said air duct has two opposite side walls and a top wall connecting the two opposite side walls, the two side walls and the top wall together forming a passage for the operation of the air.

6. The heating and drying apparatus of claim 2, wherein one end of the air supply duct is configured as a splice end, and both sides of the air supply duct are configured to rest on a bottom.

7. The heating and drying apparatus of claim 6, wherein the air supply end includes a top pipe and side pipes connected to both sides of the top pipe, the top pipe and the side pipes are enclosed together to form the air supply passage, and the air supply hole is formed in an inner wall of the air supply passage.

8. The heating and drying apparatus of claim 2, wherein one end of the return air channel is configured as a splice end, and both sides of the return air channel are configured to rest on a bottom.

9. The heating and drying apparatus according to claim 8, wherein the return air end includes a top pipe and side pipes connected to both sides of the top pipe, the top pipe and the side pipes are enclosed together to form the return air passage, and the return air hole is formed in an inner wall of the return air passage.

10. The heating and drying apparatus of claim 2, wherein the supply air duct and the return air duct are both rigid or flexible.

11. The heating and drying apparatus of claim 10, wherein the rigid tube is a tube formed by splicing metal plates, and the flexible tube is a temperature-resistant corrugated air tube.

12. The heating and drying apparatus of claim 7, wherein the air supply holes include at least side air supply holes arranged on an inner side wall of the air supply passage.

13. The heating and drying apparatus of claim 7, wherein said air supply holes include at least a top air supply hole located in an inner top wall of the air supply duct.

14. The heating and drying apparatus of claim 13, wherein the top blowing holes are arranged therein with inclined guide pieces for guiding the flow of hot air.

15. The heating and drying apparatus of claim 7, wherein the air supply hole is also provided at a junction of the inner top wall and the inner side wall of the air supply passage.

16. The heating and drying apparatus of claim 9, wherein the return air holes include at least side return air holes located on an inner side wall of the return air channel.

17. The heating and drying apparatus of claim 9, wherein the return air holes include at least top return air holes arranged in an inner top wall of the return air duct.

18. The heating and drying apparatus of claim 9, wherein said return air hole is also provided at the junction of the inner top wall and the inner side wall of said return air passage.

19. The heating and drying apparatus of claim 2, wherein the air supply interface is located on an air supply side wall of the heat engine.

20. The heating and drying apparatus of claim 19, wherein the air supply interface is centrally located on an air supply side wall of the heat engine.

21. The heating and drying apparatus of claim 19, wherein said air supply interface is sized and shaped to match the size and shape of the condensing fan outlet.

22. The heating and drying apparatus of claim 21, wherein the outlet end of the condensing fan is mounted to the air supply interface.

23. The heating and drying apparatus of claim 19, wherein the return air interface is located on a return air side wall of the heat engine.

24. The heating and drying apparatus of claim 23, wherein the supply air side wall and the return air side wall are disposed opposite each other, and the supply air side wall and the return air side wall are two opposite side walls of the heat engine, respectively.

25. The heating and drying apparatus of claim 23, wherein the edge of the return air interface is adjacent to the edge of the return air side wall of the heat engine.

26. The heating and drying apparatus of claim 25, wherein the condenser is positioned adjacent the return air interface and an air intake side of the condenser faces the return air interface.

27. The heating and drying apparatus of claim 1, further comprising a circulation system through which a refrigerant circulates, the circulation system including a compressor, the condenser, and the evaporator connected by a pipe;

The cold machine and the heat machine are split, and are connected through a pipeline of the circulating system, wherein the cold machine is arranged at the top of the heat machine or beside a production line or in a hanging manner, and the heat machine is arranged at the top of the air duct;

Or the cold machine and the heat machine are integrated, wherein the cold machine is positioned at the top of the heat machine, cold and heat isolation is formed between the cold machine and the heat machine through a shared partition plate, and the heat machine is arranged at the top of the air duct.

28. The heating and drying apparatus according to claim 27, wherein said evaporator is disposed adjacent one of the sides of the cooler, and the air inlet side of said evaporator is directed toward the side, the side being configured as a side wall structure which is a mesh panel.

29. The heating and drying apparatus of claim 28, wherein the chiller is further configured with an electronically controlled operation chamber, the electronically controlled operation chamber being configured with an operation panel for control operation.

30. The heating and drying apparatus of claim 1, wherein the air supply end is flush with the top of the air duct after the air supply end is spliced, the air return end is flush with the top of the air duct after the air return end is spliced, and the air duct is further provided with a placement top.