Air energy heat pump drying room

Abstract

The application provides an air energy heat pump drying room, which comprises a heat pump host, an air flow shunting chamber and a drying room, a heat pump air outlet is arranged between the heat pump host and the air flow shunting chamber, an axial flow air supplementing motor is arranged on the side, away from the heat pump host, of the air flow shunting chamber, and a special-shaped fluid drying channel is arranged in the drying room, so that the air flow of the heat pump and the rising heat generated by the heat pump air flow and the stationary air baffle chamber are used to heat and dry the materials to be dried placed in the special-shaped fluid drying channel and the stationary air baffle chamber in different ways. The application utilizes the principle of the Tesla valve to make the air flow locally form strong turbulence in the drying room. The heat pump air flow is used to heat and dry the materials in the special-shaped fluid drying channel through the hot air flow mode in the flow process, and the heat pump air flow is used to heat the stationary air baffle chamber through the lag motion in the drying room. The materials with different drying requirements can be heated and dried, the function is various, and the drying structure is more scientific.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air energy heat pump drying technology, in particular to an air energy heat pump drying room. BACKGROUND

[0002] The existing technology discloses a dehumidification and heat recovery device in a closed heat pump drying system with publication number "CN109724371B", which comprises a heat pump host, a pressure stabilizing chamber and a drying room arranged in sequence, a heat pump air outlet is arranged between the heat pump host and the pressure stabilizing chamber, a supplementary air inlet is arranged on the side of the heat pump host away from the pressure stabilizing chamber, an axial flow fan is arranged between the pressure stabilizing chamber and the drying room, and a drying room feeding door is arranged on the side of the drying room away from the pressure stabilizing chamber; the device also provides a dehumidification and heat recovery method in a closed heat pump drying system, which solves the problems of poor dehumidification effect and large energy waste of the existing closed drying system.

[0003] The above-mentioned device is a heat pump drying room designed by our school in the early stage, but the dehumidification and heat recovery device in the above-mentioned closed heat pump drying system still has obvious defects in the later use process: the above-mentioned device does not have a targeted design of air flow channel inside the drying room, which leads to uneven distribution of the flow rate of the heat pump drying air flow in the drying room, and further leads to poor drying effect and affects the drying rate, and the above-mentioned device does not adopt different drying methods for different drying needs of raw materials, and all of them adopt the drying method of being exposed to circulating air flow, which will affect the quality of the raw materials after drying for some raw materials that need to be dried statically. SUMMARY

[0004] The purpose of the present application is to provide an air energy heat pump drying room to solve the problems raised in the background art.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions:

[0006] The utility model provides an air energy heat pump drying room, including heat pump host, air flow shunt room and drying room, be equipped with heat pump air outlet between heat pump host and air flow shunt room, the air flow shunt room is equipped with axial flow air supplement motor away from heat pump host side, be provided with special fluid drying channel in drying room, still be provided with static wind -proof chamber in special fluid drying channel, and special fluid drying channel and static wind -proof chamber form the drying space of tesla valve type together, be provided with laminated drying frame in special fluid drying channel and static wind -proof chamber, and the laminated drying frame is used to place the raw material of waiting drying, when the air current passes through axial flow air supplement motor and enters the drying space of tesla valve type, is affected by the air current channel structure of drying space of tesla valve type, and the heat pump air current is frustrated and forms local turbulent flow in drying room, prolongs the residence time of air current in drying room, and heats static wind -proof chamber in the flow process, so that the heat of heat pump air current and the static wind -proof chamber heated in the flow process form the heat of rising respectively and carry out different ways of heating drying to the raw material of waiting drying placed in special fluid drying channel and static wind -proof chamber.

[0007] Preferably, the static wind -proof chamber is provided with an opening and closing isolation door on one side.

[0008] Preferably, the upper end of the drying room is provided with an air return duct, the inlet of the air return duct is provided with an air return fan, the gas in the drying room enters the air return duct through the air return fan, the air return duct is also communicated with an air return port, the air return port is communicated with the heat pump host away from the air return duct, and the air return duct is also provided with a dehumidification fan away from the air return fan.

[0009] Preferably, the air return duct is also provided with a heat storage heating wire, the heat storage heating wire is connected with a heat conduction column, the heat conduction column extends into the static wind -proof chamber and is connected with the laminated drying frame, and the heat storage heating wire transmits the absorbed heat to the laminated drying frame.

[0010] Preferably, the static wind -proof chamber is provided with an air exhaust channel communicated with the air return duct above, and the two ends of the air exhaust channel are connected with the tesla valve respectively, so that the air resistance of the gas entering the static wind -proof chamber from the air return duct is increased through the setting of the tesla valve.

[0011] Preferably, the drying space of tesla valve type includes a plurality of main flow channels and special fluid shunt channels, the combination position of the main flow channels and the special fluid shunt channels forms a turbulent flow area, and the laminated drying frame in the special fluid drying channel is arranged in the turbulent flow area.

[0012] Preferably, the special fluid shunt channel is provided with an air supplement channel away from the turbulent flow area on one side, the air supplement channel is communicated with the air flow shunt room through an air supplement pipeline, and the air flow shunt room is provided with an air outlet communicated with a plurality of air supplement pipelines one by one.

[0013] Preferably, the heat pump host is also provided with a dehumidification regenerator, and the return air outlet is arranged above the dehumidification regenerator.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] The present application adopts targeted setting for the gas flow channel in the drying room, utilizes the principle of Tesla valve to make the airflow form strong turbulence in the drying room, and the heat pump airflow dries and heats the materials in the irregular fluid drying channel through hot airflow mode during the flow process, and the heat pump airflow heats the stationary wind-blocking chamber through non-convection heating mode during the lag motion in the drying room. The special drying flow channel structure scientifically distributes the airflow flow position, and can heat and dry materials with different drying requirements, has various functions, and the drying structure is more scientific. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a schematic diagram of the overall structure of the present application;

[0017] Fig. 2 It is a schematic diagram of the air supplementing channel connecting structure of the present application;

[0018] Fig. 3 It is a schematic diagram of the overhead structure of the stationary wind-blocking chamber of the present application.

[0019] In the figure: 1 heat pump host, 2 airflow distribution chamber, 3 drying room, 4 heat pump air outlet, 5 axial flow air supplementing motor, 6 irregular fluid drying channel, 7 stationary wind-blocking chamber, 8 laminated drying rack, 9 opening and closing isolation door, 10 return air duct, 11 return air fan, 12 return air outlet, 13 dehumidification fan, 14 heat accumulating heating wire, 15 heat conducting column, 16 exhaust channel, 17 Tesla valve, 18 main flow channel, 19 irregular distribution channel, 20 turbulence zone, 21 air supplementing channel, 22 air supplementing pipeline, 23 air outlet, 24 dehumidification regenerator. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0021] Please refer to Figs. 1-3 The present application provides a technical solution:

[0022] Embodiment one:

[0023] The application discloses an air energy heat pump drying room, which comprises a heat pump host 1, an air flow shunting chamber 2 and a drying room 3, wherein the heat pump host 1 is provided with a heat pump air outlet 4 on the side away from the air flow shunting chamber 2, the air flow shunting chamber 2 is provided with an axial flow air supplementing motor 5 on the side away from the heat pump host 1, the drying room 3 is provided with a special-shaped fluid drying channel 6, and the special-shaped fluid drying channel 6 is further provided with a static wind blocking chamber 7; the special-shaped fluid drying channel 6 and the static wind blocking chamber 7 jointly form a Tesla valve type drying space; the special-shaped fluid drying channel 6 and the static wind blocking chamber 7 are both provided with a laminated drying rack 8, and the laminated drying rack 8 is used for placing raw materials to be dried; when air flow enters the Tesla valve type drying space through the axial flow air supplementing motor 5, the heat pump air flow is affected by the structure of the air flow channel of the Tesla valve type drying space, the heat pump air flow is frustrated in the drying room 3 and forms local turbulent flow, the residence time of the air flow in the drying room 3 is prolonged, the static wind blocking chamber 7 is heated in the flowing process, and therefore the heat pump air flow and the rising heat generated by the static wind blocking chamber 7 heated by the heat pump air flow are used for heating and drying the raw materials to be dried in the special-shaped fluid drying channel 6 and the static wind blocking chamber 7 in different ways.

[0024] In this embodiment, the heat pump host 1 provides heat and air flow for the inside of the drying room 3, and the air flow distribution chamber 2 is used to distribute the conveying direction of the air flow, so that most of the wind energy enters the drying room 3 under the drive of the axial flow air supplementing motor 5. Due to the special channel structure inside the drying room 3, it uses the fluid resistance principle of the Tesla valve direction to set the special fluid drying channel 6, and the special fluid drying channel 6 and the static wind blocking chamber 7 jointly form a Tesla valve type drying space. Referring to the flow principle of the fluid inside the Tesla valve, when the gas passes through the Tesla valve in the opposite direction, the air flow is greatly retarded and stays in the drying room 3 for a long time. Due to the special structure of the Tesla valve drying space, the gas inside the drying room 3 will form a swirling vortex flow in a certain area. Therefore, the laminated drying rack 8 is placed in this area, which can better utilize the wind energy of the heat pump host 1 for heating and drying. It is more suitable for materials that need to be dehydrated. The side of each static wind blocking chamber 7 is provided with an opening and closing isolation door 9. By opening the opening and closing isolation door 9 to enter and exit the static wind blocking chamber 7, the drying room can dry Chinese herbal medicines and heat air dry the root and leaf parts with high water content. The hot air uses heat to dry the Chinese herbal medicines on one hand, and carries away the water generated during drying on the other hand. However, the stamen and other parts of the Chinese herbal medicines need to be dried statically. If this part is dried by hot air flow, it may cause pollen loss and affect the medicinal effect of the dried medicinal materials. Therefore, for medicinal materials that require such drying, they can be placed in the static wind blocking chamber 7. The hot air flow formed in the special fluid drying channel 6 heats the static wind blocking chamber 7 after entering the Tesla valve type drying space. On the one hand, it traps part of the heat, which can heat radiate the materials to be dried in the special fluid drying channel 6. On the other hand, the static wind blocking chamber 7 itself is also heated. Since this part is in a closed device, no air flow is generated inside. Therefore, it can better heat radiate the materials that are not suitable for wind drying. In summary, the static wind blocking chamber 7 serves as a forming structure of the Tesla valve type drying space on the one hand, and can heat radiate to improve the drying effect in the special fluid drying channel 6 on the other hand. The heat can also be transferred to the inside of the static wind blocking chamber 7 to achieve static drying effect. The structure has multiple functions, and the setting of the structure reflects the creativity of the device.

[0025] Embodiment two:

[0026] The upper end of the drying room 3 is provided with a return air duct 10. The inlet of the return air duct 10 is provided with a return air fan 11. The gas in the drying room 3 enters the return air duct 10 through the return air fan 11. The return air duct 10 is also communicated with a return air outlet 12. The return air outlet 12 is communicated with the heat pump host 1 away from the return air duct 10. The return air duct 10 is also provided with a dehumidifying fan 13 away from the return air fan 11. The heat pump host 1 is also provided with a dehumidifying heat accumulator 24. The return air outlet 12 is arranged above the dehumidifying heat accumulator 24.

[0027] The heat storage heating wire 14 is connected with the heat conduction column 15, the heat conduction column 15 extends into the static air baffle chamber 7 and is connected with the laminated drying rack 8, and the heat storage heating wire 14 transmits the absorbed heat to the laminated drying rack 8.

[0028] In this embodiment, the setting of the air return channel 10 can recycle the hot air flow after drying, thereby improving the energy utilization efficiency. Meanwhile, due to the limited heat exchange between the air flow and the raw materials during the drying process, when the air flow enters the air return channel 10 again, the heat storage heating wire 14 arranged in the air return channel 10 can further collect and conduct the heat to the heat conduction column 15, thereby better heating and drying the static air baffle chamber 7. The heat pump host 1 is also provided with a dehumidification heat regenerator 24, and the air return port 12 is arranged above the dehumidification heat regenerator 24. Through the setting of the dehumidification fan 13 and the dehumidification heat regenerator 24, the moisture generated during the drying process can be better removed.

[0029] Embodiment three:

[0030] The static air baffle chamber 7 is also provided with an exhaust passage 16 which is communicated with the air return channel 10, and the two ends of the exhaust passage 16 are connected with the Tesla valve 17. The setting of the Tesla valve 17 increases the resistance of the air flow entering the static air baffle chamber 7 from the air return channel 10.

[0031] In order to maintain the balance of the air inside and outside the static air baffle chamber 7, the Tesla valve 17 is arranged between the static air baffle chamber 7 and the air return channel 10. Since the air flow in the air return channel 10 circulates, the internal pressure is smaller than that in the static air baffle chamber 7. When the static air baffle chamber 7 can heat and expand the air flow, the Tesla valve 17 can balance the internal and external air pressures and can also dissipate the air generated during the static drying process. When the internal pressure of the air return channel 10 increases, the resistance of the Tesla valve 17 in the reverse flow direction increases, and the air flow will preferentially flow out through other openings communicated with the air return channel 10, thereby stabilizing the air flow stability in the static air baffle chamber 7.

[0032] Embodiment four:

[0033] The Tesla valve type drying space includes a plurality of main flow channels 18 and a plurality of special flow channels 19. The combination position of the main flow channels 18 and the special flow channels 19 forms a turbulent flow area 20, and the laminated drying rack 8 in the special flow channel 6 is arranged in the turbulent flow area 20.

[0034] The special flow channel 19 is provided with a supplementary air passage 21 away from the turbulent flow area 20. The supplementary air passage 21 is communicated with the air flow distribution chamber 2 through a supplementary air pipeline 22, and the air flow distribution chamber 2 is provided with an air outlet 23 communicated with the plurality of supplementary air pipelines 22 one by one.

[0035] In this embodiment, the gas collision rate at the intersection of the main flow channel 18 and the special-shaped flow channel 19 is increased by additionally arranging the air supplement channel 21, which is more conducive to the formation of rotational turbulence, and therefore the laminated drying rack 8 is arranged in the turbulence zone 20, which can improve the local gas flow in the drying room 3, and more scientifically realize the drying of the materials to be dried.

[0036] While the embodiments of the application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. An air energy heat pump drying room, comprising a heat pump host, an air flow distribution chamber and a drying room, a heat pump air outlet is arranged between the heat pump host and the air flow distribution chamber, an axial flow air supplement motor is arranged on the side of the air flow distribution chamber away from the heat pump host, characterized in that: The drying room is provided with a special-shaped fluid drying channel, and a static wind-blocking chamber is further arranged in the special-shaped fluid drying channel. The special-shaped fluid drying channel and the static wind-blocking chamber jointly form a Tesla valve type drying space. A laminated drying rack is arranged in the special-shaped fluid drying channel and the static wind-blocking chamber, and the laminated drying rack is used to place raw materials to be dried. When the airflow enters the Tesla valve type drying space through the axial flow air supplementing motor, the heat pump airflow is affected by the airflow channel structure of the Tesla valve type drying space, and the flow of the heat pump airflow in the drying room is frustrated to form local turbulent flow, thereby prolonging the residence time of the airflow in the drying room and heating the static wind-blocking chamber in the flow process. The rising heat generated by the heat pump airflow and the heated static wind-blocking chamber is used to heat and dry the raw materials to be dried in the special-shaped fluid drying channel and the static wind-blocking chamber in different ways. ​ 2. An air-to-air heat pump drying chamber as claimed in claim 1, wherein: A plurality of the static wind-blocking chambers are provided with opening and closing isolation doors on one side.

3. An air-to-air heat pump drying house as claimed in claim 1 or 2, characterised in that: The upper end of the drying room is provided with a return air duct, the inlet of the return air duct is provided with a return air fan, the gas in the drying room enters the return air duct through the return air fan, the return air duct is also communicated with a return air outlet, the return air outlet is communicated with the heat pump main machine at the end away from the return air duct, and the side of the return air duct away from the return air fan is also provided with a dehumidification fan.

4. The air-to-air heat pump drying chamber according to claim 3, characterized in that: The return air duct is further provided with a heat storage heating wire, the heat storage heating wire is connected with a heat conduction column, the heat conduction column extends into the static wind-blocking chamber and is connected with the laminated drying rack, and the heat storage heating wire transmits the absorbed heat to the laminated drying rack.

5. An air-to-air heat pump drying house as claimed in claim 4, characterised in that: A plurality of the static wind-blocking chambers are further provided with exhaust channels communicated with the return air duct above, and the two ends of the exhaust channels are connected to the Tesla valve respectively. The setting of the Tesla valve increases the resistance of the gas entering the static wind-blocking chamber from the return air duct.

6. An air-to-air heat pump drying chamber as claimed in claim 5, characterised in that: The Tesla valve type drying space comprises a plurality of main flow channels and special-shaped branch flow channels, the combination position of the main flow channels and the special-shaped branch flow channels forms a turbulent flow area, and the laminated drying rack in the special-shaped fluid drying channel is arranged in the turbulent flow area.

7. An air-to-air heat pump drying house as claimed in claim 6, characterised in that: The side of the special-shaped branch flow channel away from the turbulent flow area is provided with a wind supplementing channel, the wind supplementing channel is communicated with an airflow shunting chamber through a wind supplementing pipeline, and the airflow shunting chamber is provided with an air outlet communicated with a plurality of wind supplementing pipelines one by one.

8. An air-to-air heat pump drying house as claimed in claim 7, characterised in that: The heat pump main machine is further provided with a dehumidification heat regenerator, and the return air outlet is arranged above the dehumidification heat regenerator.

Images