CN210123222U - A multipurpose heat pump oven - Google Patents

Abstract

The utility model relates to a multipurpose heat pump curing barn, which comprises an air energy heat pump and a house body, wherein the interior of the house body is divided into a unit chamber and a hot air chamber, an evaporator case of the air energy heat pump is positioned outdoors, a condenser is positioned in the unit chamber, a circulating fan is arranged below the condenser, a gas-entraining fan and a waste heat air box are respectively arranged at two sides of the evaporator in the evaporator case, and a movable heat insulation plate is arranged between the gas-entraining fan and the evaporator; the top and the bottom of the hot air chamber are respectively provided with an air supply cavity and a moisture exhaust cavity, the air inlet of the air supply cavity is positioned in the unit chamber, the bottom of the side wall of the hot air chamber close to the unit chamber is provided with a circulating air port, and the air outlet of the moisture exhaust cavity is connected with a waste heat air box through a moisture exhaust fan. The utility model is suitable for a stoving processing of various crops can effectively prevent the invalid heat dissipation of hydrofuge gas in the emission process simultaneously for the heat of hydrofuge gas can fully be absorbed by the evaporimeter furthest of air-source heat pump, improves heat utilization rate.

Description

A multipurpose heat pump oven

technical field

The utility model belongs to the field of agricultural processing devices, in particular to a multipurpose heat pump oven.

Background technique

After the tobacco leaves of flue-cured tobacco varieties are harvested from the fields, they need to be roasted and prepared before they can be used as raw materials for cigarettes. At present, the curing and modulation of flue-cured tobacco leaves are all carried out in the drying room. The high-temperature circulating air after heat exchange with the heat source is used to dehydrate and heat the tobacco leaves in the drying room, so that the chemical components in the tobacco leaves react and become more coordinated. . With the development of air-energy heat pump technology, and the curing season of tobacco leaves is concentrated in July-October with abundant sunlight and high outdoor temperature, the technology of applying air-energy heat pump to the barn has been continuously developed, which is disclosed in the prior art Many patent documents and practical operations have fully proved that the air energy heat pump can be well applied to the barn. However, there are still some problems in the air-powered heat pump oven in the prior art. For example, the air-powered heat pump cannot make full use of light energy, and the existing oven only leads it to the evaporator of the air-powered heat pump when dehumidifying. However, it is ignored that the heat in the dehumidifying gas will escape to the outside world and cannot be absorbed by the medium in the evaporator during this process, and the internal structure of the roasting house is only suitable for adjusting the hoisted tobacco leaves.

Utility model content

The purpose of the utility model is to provide a multi-purpose heat pump roasting house, the utility model is suitable for drying and processing various crops, and at the same time can effectively prevent the ineffective heat dissipation of the dehumidifying gas during the discharge process, so that the heat of the dehumidifying gas can be It is fully absorbed by the evaporator of the air energy heat pump to the maximum extent and improves the utilization rate of heat energy.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the utility model is as follows:

A multi-purpose heat pump roasting room, comprising an air energy heat pump and a house body that is divided into a unit room and a hot air room, the evaporator case of the air energy heat pump is located outdoors, the condenser is located in the unit room, and a circulating fan is arranged below the condenser. , the evaporator case is provided with an air induction fan and a waste heat air box on both sides of the evaporator, a heat insulation plate is arranged between the air induction fan and the evaporator, and a first rack is vertically arranged on the plate body of the heat insulation plate. , the top of the evaporator case is provided with a motor, and the output end of the motor is provided with a first gear meshing with the first rack;

The top and bottom of the hot air chamber are respectively provided with an air supply cavity and a moisture exhaust cavity. The air inlet of the air supply cavity is located in the unit room. It is connected with the waste heat air box through the dehumidification fan.

Preferably, the side walls of the hot air chamber that are close to and away from the machine room are in a sandwich structure, and at least three rows of support mechanisms are arranged between the two side walls from top to bottom, and each row of support mechanisms includes an array of support members that are parallel to each other. It is composed of a supporting member including a driving rod and a driven rod arranged in parallel. The driving rod and the driven rod are both provided with two supporting plates located on the same straight line, and the rod body is respectively provided with hanging rods on both sides of each supporting block. The included angle between the hanging rod and the support plate is 90°, and the corresponding hanging rods on the active rod and the driven rod are staggered.

Preferably, the waste heat air duct is separated by a plurality of inclined partitions, the top of the waste heat air duct is connected to the outside world, and the bottom end is provided with an air guide plate, and one end of the air guide plate is abutted against the wall of the waste heat air box. The other end is inclined toward the waste heat air duct, and the waste heat air box is provided with a waste heat air outlet for connecting the air outlet of the dehumidification fan on the wall of the waste heat air box corresponding to the air guide plate.

Preferably, one end of the driving rod and the driven rod are respectively provided with a driving wheel and a driven wheel that mesh with each other, and the driving rod is also sleeved with a sprocket on one side of the driving wheel. The sprocket on the driving rod is driven by a closed chain, and the driving rod of the lowermost row of support mechanisms is sleeved with a transmission gear on one side of the sprocket, and the transmission gear meshes with the second rack, and the second rack is located in the In the interlayer of the side wall, one end of the second rack is exposed to the outside and is provided with a pull handle.

Preferably, the bottom of the waste heat bellows is provided with a drainage channel that communicates with the outside world, and the bottom of the air deflector is provided with a condensation pipe, and the condensation pipe is connected to the drainage channel and the internal space of the waste heat bellows.

Preferably, both ends of the driving rod and the driven rod are located in the interlayer of the side wall of the hot blast chamber, and the driving wheel, the driven wheel, the sprocket, the transmission gear and the chain are arranged in the interlayer.

Preferably, the air supply cavity is provided with several air supply holes with openings facing downwards along the length direction thereof, and the moisture exhaust chamber is provided with several air inlet holes with openings facing upwards along the length direction.

Preferably, the top of the house is also provided with a solar hot air box, the top surface of the solar hot air box is provided with light-transmitting tempered glass, the bottom surface is covered with a black film, and the solar hot air box is separated by a baffle to form a serpentine air duct. One end of the shaped air duct is connected with the air outlet of the blower, and the other end is connected with the air inlet of the air supply cavity through the air supply pipe.

Preferably, the end of the air supply pipe is provided with a first temperature monitor, the solar hot air box is provided with a second temperature monitor, and the first and second temperature monitors are data-connected to an external temperature numerical display device.

The working principle of the utility model is as follows:

The blower blows the gas at the bottom of the hot air chamber into the serpentine air duct of the solar hot air box. The air moves in the serpentine air duct and is heated by the sunlight passing through the tempered glass plate on the top surface of the solar hot air box. The black film can reduce the reflectivity of sunlight, improve the light-to-heat conversion efficiency of solar energy, and the shape of the serpentine air duct can maximize the flow of the air, so that the time for the air to be heated can be prolonged and the heating effect of the air can be improved. Air enters the unit room and enters the air supply cavity from the air inlet of the air supply cavity;

At the same time, through the meshing of the first gear and the first rack, the heat insulation board is kept in the outside state, and the bleed air fan blows the outside air to the evaporator, so that the evaporator transfers the heat energy of the outside air to the condenser through the medium for release. , the circulating fan blows the circulating air to the condenser, so that the circulating air continuously absorbs the heat released by the condenser to heat up, and finally mixes the hot air blown from the solar hot air box and enters the air supply chamber.

The hot air in the air supply chamber is evenly blown downward through several air supply holes, and after heating the tobacco leaves and other crops in the roasting room, it carries the moisture discharged from the tobacco leaves and other crops to re-enter the unit room from the circulation air holes, and is circulated by the circulating fan. drum to the condenser.

With the continuous drainage of tobacco leaves and other crops, when the humidity in the hot air room reaches a certain level (which can be displayed by the dry and wet bulb in the barn in the prior art), start the dehumidification fan and start the motor at the same time. The air is sucked into the humidity extraction cavity from the air inlet hole of the humidity extraction cavity and blown into the waste heat air box. The humidified air is guided by the air deflector and quickly enters the waste heat air duct, and finally is discharged from the top of the waste heat air duct to the outside world; the motor drives The first gear rotates, and the first rack meshing with the first gear drives the heat shield to move down to the heat shield to isolate the bleed fan and the evaporator, so that the evaporator and the waste heat air box form a separate heat transfer space. In this process, the waste heat air duct formed by the inclined baffles not only prolongs the flow path of the humid air, but also increases the residence time of the humid air in the waste heat air box, thereby improving the effect of the medium in the evaporator on the heat in the humid air. At the same time, the separate heat transfer space not only enables the medium in the evaporator to fully absorb the heat in the humid air, but also greatly reduces the degree of heat dissipation in the humid air to the outside world. At the same time, the water generated by the condensation of moisture in the humid air will be guided by the inclined partitions and air deflectors to be discharged downward, and finally enter the drainage channel through the condensate pipe and flow to the outside world.

At the same time, as a more preferred solution, the temperature in the solar hot air box is monitored by the second temperature monitor. If the temperature in the solar hot air box is lower than the indoor temperature of the hot air, the staff can stop the blower and only rely on the air energy heat pump to provide the heat source. ; The temperature of the hot air after being heated by the solar hot air box is detected by the first temperature monitor. If the hot air temperature reaches the required standard for baking (that is, the temperature of the solar hot air box must be higher than the indoor temperature of the hot air), the staff will stop the air energy heat pump. Only rely on the solar hot air box to provide the heat source.

In the utility model, a support mechanism is used to support various agricultural products including tobacco leaves. When the tobacco leaves are supported, the second rack is moved linearly through the handle, and the transmission gear meshing with the second rack will drive the lowermost support. All the active rods of the mechanism rotate, and the active rod drives the sprocket to rotate, and through the chain, the active rods of all supports on the same vertical line rotate, and the active rod drives the driving wheel to rotate and is driven by the driven wheel that meshes with the driving wheel. The rod rotates, so that the driving rod and the driven rod in each support are rotated at the same angle and opposite to each other, so that the hanging rods on the driving rod and the driven rod are in a horizontal state, and the supporting plate is in a vertical state. Both ends of the tobacco rod of the tobacco leaves can be hung on the hanging rod;

When drying other crops, such as sweet potato slices, the second rack is also moved linearly through the handle. The same process makes the support plates on the active rod and the driven rod not in a vertical state. The supporting plate on the driven rod supports the crops, and at the same time, the distance between the supporting plates can be adjusted by changing the angle between the supporting plate of the driving rod and the driven rod, thereby adapting to the volume requirements of different crops.

Compared with the prior art, the utility model has the following advantages:

1) The utility model has a simple structure, that is, the light energy and the air heat source can be used independently for heating, and the light energy and the air heat source can be used as the heating heat source of the circulating air at the same time, so as to improve the heating efficiency of the circulating air, thereby improving the production efficiency of the barn;

2) The utility model can be applied to the drying and processing of various crops, and is not limited to the roasting and modulation of tobacco leaves, so as to improve the scope of application and popularization benefits of the present utility model;

3) The utility model can effectively prevent the ineffective heat dissipation of the dehumidifying gas during the discharge process, so that the heat of the dehumidifying gas can be fully absorbed by the evaporator of the air energy heat pump to the maximum extent, and the utilization rate of heat energy can be improved. It reduces the loss of beneficial substances such as crop aroma substances in the process of baking and dehumidification.

Description of drawings

1 is a schematic structural diagram of an energy-saving heat pump roasting house in a non-dampening state in a specific embodiment;

2 is a schematic structural diagram of an energy-saving heat pump oven in a dehumidifying state in a specific embodiment;

3 is a schematic diagram of the internal structure of a solar hot air box in a specific embodiment;

4 is a schematic diagram of the internal structure of a waste heat bellows in a specific embodiment;

5 is a schematic structural diagram of the bottom row of support members in a hot air chamber in a specific embodiment;

6 is a schematic structural diagram of the non-lowermost row of supports in the hot air chamber in a state of supporting cigarette rods in a specific embodiment;

7 is a schematic structural diagram of the non-lowermost row of support members in the hot air chamber in a state of non-supporting tobacco rods in a specific embodiment;

8 is a schematic diagram of the interlayer internal structure of the side wall of the hot blast chamber in FIG. 1;

Note: The support mechanism is not shown in Figure 2, and the arrows in the accompanying drawings represent the airflow direction.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model more clearly understood, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not intended to limit the present invention.

As shown in Figures 1-8, a multi-purpose heat pump oven includes an air-energy heat pump 3 and a room 1 that is divided into a unit room 11 and a hot-air chamber 12. The evaporator case of the air-energy heat pump 3 is located outdoors, The condenser 32 is located in the unit room 11, a circulating fan 111 is arranged below the condenser 32, and an air induction fan 31 and a waste heat air box 39 are respectively provided in the evaporator case on both sides of the evaporator 35. The induction fan 31 and the evaporator 35 There is a heat insulation plate 34 between them, a first rack 341 is vertically arranged on the plate body of the heat insulation plate 34, a motor 33 is arranged on the top of the evaporator case, and the output end of the motor 33 is arranged to engage with the first rack 341 the first gear;

The top and bottom of the hot air chamber 12 are respectively provided with an air supply chamber 121 and a moisture exhaust chamber 122, the air inlet 124 of the air supply chamber 121 is located in the unit chamber 11, and the hot air chamber 12 is close to the side wall bottom of the unit chamber. For the air outlet 125, the air supply cavity 121 is provided with several air supply holes with openings facing downwards along its length direction, and the moisture exhaust chamber 122 is provided with several air inlet holes with openings facing upwards along its length direction. The waste heat air box 39 is separated by a number of inclined partitions 36 to separate the waste heat air ducts. The top end of the waste heat air duct is connected to the outside world, and the bottom end is provided with an air guide plate 37, and one end of the air guide plate 37 is abutted against the waste heat air box 39 box. The wall and the other end are inclined towards the waste heat air duct, and the waste heat air box 39 corresponding to the air deflector is provided with a waste heat air outlet 391 for connecting the air outlet of the dehumidification fan 123. Air inlet connection. The bottom of the waste heat air box 39 is provided with a drainage channel 38 communicating with the outside world, and the bottom of the air deflector 37 is provided with a condensation pipe 371 , and the condensation water pipe 371 communicates with the drainage channel 38 and the internal space of the waste heat air box 39 .

The side walls of the hot air chamber 12 close to and away from the unit room 11 are in a sandwich structure, and at least three rows of support mechanisms are arranged between the two side walls from top to bottom, and each row of support mechanisms includes an array of parallel support members. The support member includes an active rod 41 and a driven rod 42 arranged in parallel. The active rod 41 and the driven rod 42 are both provided with two supporting plates 43 located on the same straight line, and the rod body is respectively provided with two sides of each supporting block. The hanging rod 44, the angle between the hanging rod 44 and the support plate 43 is 90°, the corresponding hanging rods 44 on the active rod 41 and the driven rod 42 are arranged in a staggered manner, and one end of the active rod 41 and the driven rod 42 are respectively provided with The driving wheel 45 and the driven wheel 46 meshing with each other, the driving rod is also sleeved with a chain wheel 47 on one side of the driving wheel 45, and the chain wheel 47 on the vertical corresponding driving rod on each row of support mechanisms passes through the closed chain 471 Transmission, and the driving rod of the bottom row of support mechanisms is sleeved with a transmission gear 48 on one side of the sprocket 47, the transmission gear 48 is meshed with the second rack 49, and the second rack 49 is located in the interlayer of the side wall. , and one end of the second rack 49 is exposed to the outside and is provided with a handle 491 . Both ends of the driving rod and the driven rod are located in the interlayer of the side wall of the hot air chamber, and the driving wheel, the driven wheel, the sprocket, the transmission gear and the chain are arranged in the interlayer.

The top of the house body 1 is also provided with a solar hot air box 2. The top surface of the solar hot air box is closed by a light-transmitting tempered glass plate, the bottom surface is covered with a black film 21, and a serpentine air duct is separated from the solar hot air box by a baffle 22. One end of the serpentine air duct is connected to the air outlet of the blower 23 , and the other end is connected to the air inlet 124 of the air supply cavity 121 through the air supply pipe.

The working principle of the utility model is as follows:

The blower blows the gas at the bottom of the hot air chamber into the serpentine air duct of the solar hot air box. The air moves in the serpentine air duct and is heated by the sunlight passing through the tempered glass plate on the top surface of the solar hot air box. The black film can reduce the reflectivity of sunlight, improve the light-to-heat conversion efficiency of solar energy, and the shape of the serpentine air duct can maximize the flow of the air, so that the time for the air to be heated can be prolonged and the heating effect of the air can be improved. Air enters the unit room and enters the air supply cavity from the air inlet of the air supply cavity;

At the same time, through the meshing of the first gear and the first rack, the heat insulation board is kept in the outside state, and the bleed air fan blows the outside air to the evaporator, so that the evaporator transfers the heat energy of the outside air to the condenser through the medium for release. , the circulating fan blows the circulating air to the condenser, so that the circulating air continuously absorbs the heat released by the condenser to heat up, and finally mixes the hot air blown from the solar hot air box and enters the air supply chamber.

The hot air in the air supply chamber is evenly blown downward through several air supply holes, and after heating the tobacco leaves and other crops in the roasting room, it carries the moisture discharged from the tobacco leaves and other crops to re-enter the unit room from the circulation air holes, and is circulated by the circulating fan. drum to the condenser.

With the continuous drainage of tobacco leaves and other crops, when the humidity in the hot air room reaches a certain level (which can be displayed by the dry and wet bulb in the barn in the prior art), start the dehumidification fan and start the motor at the same time. The air is sucked into the humidity extraction cavity from the air inlet hole of the humidity extraction cavity and blown into the waste heat air box. The humidified air is guided by the air deflector and quickly enters the waste heat air duct, and finally is discharged from the top of the waste heat air duct to the outside world; the motor drives The first gear rotates, and the first rack meshing with the first gear drives the heat shield to move down to the heat shield to isolate the bleed fan and the evaporator, so that the evaporator and the waste heat air box form a separate heat transfer space. In this process, the waste heat air duct formed by the inclined baffles not only prolongs the flow path of the humid air, but also increases the residence time of the humid air in the waste heat air box, thereby improving the effect of the medium in the evaporator on the heat in the humid air. At the same time, the separate heat transfer space not only enables the medium in the evaporator to fully absorb the heat in the humid air, but also greatly reduces the degree of heat dissipation in the humid air to the outside world. At the same time, the water generated by the condensation of moisture in the humid air will be guided by the inclined partitions and air deflectors to be discharged downward, and finally enter the drainage channel through the condensate pipe and flow to the outside world.

In the utility model, a support mechanism is used to support various agricultural products including tobacco leaves. When the tobacco leaves are supported, the second rack is moved linearly through the handle, and the transmission gear meshing with the second rack will drive the lowermost support. All the active rods of the mechanism rotate, and the active rod drives the sprocket to rotate, and through the chain, the active rods of all supports on the same vertical line rotate, and the active rod drives the driving wheel to rotate and is driven by the driven wheel that meshes with the driving wheel. The rod rotates, so that the driving rod and the driven rod in each support are rotated at the same angle and opposite to each other, so that the hanging rods on the driving rod and the driven rod are in a horizontal state, and the supporting plate is in a vertical state. Both ends of the tobacco rod of the tobacco leaves can be hung on the hanging rod;

When drying other crops, such as sweet potato slices, the second rack is also moved linearly through the handle. The same process makes the support plates on the active rod and the driven rod not in a vertical state. The supporting plate on the driven rod supports the crops, and at the same time, the distance between the supporting plates can be adjusted by changing the angle between the supporting plate of the driving rod and the driven rod, thereby adapting to the volume requirements of different crops.

Example 2

The difference between this embodiment and Embodiment 1 is that the following technical means are also added. The end of the air supply pipe is provided with a first temperature monitor, and the solar hot air box is provided with a second temperature monitor. Two temperature monitors are connected with the external temperature numerical display device for data connection.

In this embodiment, the temperature in the solar hot air box is monitored by the second temperature monitor. If the temperature in the solar hot air box is lower than the indoor temperature of the hot air, the staff can stop the blower and only rely on the air energy heat pump to provide the heat source; through the first temperature The monitor detects the temperature of the hot air heated by the solar hot air box. If the hot air temperature reaches the required standard for baking (that is, the temperature of the solar hot air box must be higher than the indoor temperature of the hot air), the staff stops the air energy heat pump and only relies on the solar hot air box. Provide a heat source. Other operations are the same as those of the technical solution described in Embodiment 1.

Claims (9)

1. a multi-purpose heat pump roasting house, comprising an air energy heat pump and the room body that is divided into a unit room and a hot air chamber, the evaporator case of the air energy heat pump is located in the outdoor, and the condenser is located in the unit room, it is characterized in that, condensation There is a circulating fan below the evaporator, an air duct fan and a waste heat air box are respectively installed on both sides of the evaporator in the evaporator case, and a heat insulation board is installed between the bleed air fan and the evaporator, and the board body of the heat insulation board is vertical A first rack is arranged, a motor is arranged on the top of the evaporator case, and a first gear meshing with the first rack is arranged at the output end of the motor; The top and bottom of the hot air chamber are respectively provided with an air supply cavity and a moisture exhaust cavity. The air inlet of the air supply cavity is located in the unit room. It is connected with the waste heat air box through the dehumidification fan. 2. The multipurpose heat pump roasting house as claimed in claim 1, wherein the side walls of the hot air chamber against and away from the unit room are all sandwich structures, and between the two side walls from top to bottom, at least Three rows of support mechanisms, each row of support mechanisms consists of an array of support members that are parallel to each other, and the support members include parallel driven rods and driven rods. Both the driving rod and the driven rod are provided with two support plates located on the same straight line. The rod body is respectively provided with hanging rods on both sides of each support block, the included angle between the hanging rod and the support plate is 90°, and the corresponding hanging rods on the active rod and the driven rod are staggered. 3. The multi-purpose heat pump roasting house as claimed in claim 1, wherein the waste heat air duct is separated from the waste heat air duct by a plurality of clapboards arranged obliquely in the waste heat air box, and the top end of the waste heat air duct is communicated with the outside world, and the bottom end is provided with a waste heat air duct. There is an air guide plate, one end of the air guide plate is close to the wall of the waste heat air box, and the other end is inclined towards the waste heat air duct. 4. The multi-purpose heat pump barn according to claim 2, wherein one end of the driving rod and the driven rod are respectively provided with a driving wheel and a driven wheel that mesh with each other, and the driving rod is on one side of the driving wheel A sprocket is also sleeved, the sprocket on the vertical corresponding driving rod on each row of support mechanisms is driven by a closed chain, and the driving rod of the bottom row of support mechanisms is sleeved with a transmission gear on one side of the chain wheel, The transmission gear meshes with the second rack, the second rack is located in the interlayer of the side wall, and one end of the second rack is exposed to the outside and is provided with a handle. 5. The multipurpose heat pump barn as claimed in claim 3, characterized in that, the bottom of the waste heat bellows is provided with a drainage channel that communicates with the outside world, the bottom of the air deflector is provided with a condensate pipe, and the condensate pipe communicates with the drainage channel and the waste heat. The inner space of the bellows. 6. The multipurpose heat pump barn according to claim 4, wherein both ends of the driving rod and the driven rod are located in the interlayer of the side wall of the hot air chamber, and the driving wheel, the driven wheel, the chain Wheels, transmission gears and chains are arranged in the interlayer. 7 . The multipurpose heat pump barn according to claim 1 , wherein the air supply chamber is provided with a plurality of air supply holes with openings facing downward along the length direction thereof, and the moisture exhaust chamber is provided along the length thereof. 8 . A number of air inlet holes with openings facing upward are opened in the direction. 8. The multipurpose heat pump roasting house as claimed in claim 1, wherein the top of the house is further provided with a solar hot air box, the top surface of the solar hot air box is provided with light-transmitting tempered glass, and the bottom surface is provided with a black film, The solar hot air box is separated by a baffle to form a serpentine air duct, one end of the serpentine air duct is connected with the air outlet of the blower, and the other end is connected with the air inlet of the air supply cavity through an air supply pipe. 9 . The multi-purpose heat pump barn according to claim 8 , wherein the end of the air supply pipe is provided with a first temperature monitor, and the solar hot air box is provided with a second temperature monitor. Two temperature monitors are connected with the external temperature numerical display device for data connection.

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