Double-heat-source system for recycling moisture removal heat

Abstract

The utility model relates to the technical field of agricultural product drying, and discloses a double-heat-source system for recycling moisture removal heat, which is characterized in that an air supply fan and a heat supply furnace are both positioned in an inner cavity of a heat insulation chamber, heat radiated in the working process of the air supply fan and the heat supply furnace is limited in the heat insulation chamber, and a hollow interlayer has a heat insulation effect. Heat radiated by the air supply fan and the heat supply furnace can be greatly prevented from being dissipated to the environment; external air entering the heat insulation chamber is sequentially heated by double heat sources of the condenser and the heat supply furnace, the requirement for the airflow temperature of an inlet in the drying chamber is met, the external air can be preheated by heat radiated to the side wall of the heat insulation chamber in the hollow interlayer, heat loss is further reduced, and the heat utilization rate is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural product drying, and particularly relates to a dual heat source system for recovering moisture exhaust heat. Background Art

[0002] In modern industrial production and daily life, biomass combustion furnaces and blowers are the core equipment for energy conversion and gas transportation. Especially in agricultural product drying equipment, when the biomass combustion furnace burns biomass materials, it converts chemical energy into heat energy and heats the intake air flow of the agricultural product drying equipment to achieve the drying of agricultural products. However, a part of the heat during the combustion process escapes in the form of radiation, and during the process of the blower transporting gas, heat is generated by the operation of the blower equipment. These heats are often not fully utilized but are dissipated into the environment in the form of heat radiation, reducing the energy conversion efficiency and utilization rate. Content of the Utility Model

[0003] In view of this, the utility model provides a dual heat source system for recovering moisture exhaust heat, which can greatly reduce the heat dissipated from the air supply blower and the heat radiation of the heating furnace into the environment, and the outside air can be preheated by the heat radiated to the side wall of the heat insulation chamber in the hollow interlayer, further reducing heat dissipation and improving the utilization rate of heat.

[0004] To achieve the above technical effects, the utility model provides a dual heat source system for recovering moisture exhaust heat, including:

[0005] An air supply blower for introducing outside air into the drying chamber;

[0006] A heating furnace connected between the air supply blower and the drying chamber for heating the air introduced into the drying chamber by the air supply blower;

[0007] A heat insulation chamber including side walls and a top surface, the side walls and the top surface enclosing a heat insulation chamber, the side walls including an inner lining layer and an outer shell layer, with a hollow interlayer between the inner lining layer and the outer shell layer; the air supply blower and the heating furnace are both installed in the heat insulation chamber, the outer shell layer is provided with a first air inlet for outside air to enter the hollow interlayer, and the inner lining layer is provided with a second air inlet for the air flow in the hollow interlayer to enter the heat insulation chamber;

[0008] A heat pump including a compressor, a condenser, an expansion throttle valve, and an evaporator; the condenser is arranged in the heat insulation chamber, and the evaporator is installed on the moisture exhaust pipe of the drying chamber, and the evaporator is used for condensing and dehumidifying the water-containing air flow discharged from the drying chamber.

[0009] Further, the coil of the condenser is arranged in the hollow interlayer of the heat insulation chamber.

[0010] Further, the first air inlet and the second air inlet are oppositely arranged on the side wall of the heat insulation chamber.

[0011] Further, the second air inlet includes a swirl hole opened in the inner lining layer.

[0012] Further, an air inlet grille installed in the inner lining layer is provided on the second air inlet, and the air inlet grille includes grille units with adjustable air flow angles.

[0013] Further, the heating furnace is a biomass combustion furnace, including:

[0014] A combustion chamber, the inner cavity of which is used to provide a place for biomass fuel combustion, and a smoke exhaust pipe is arranged in the inner cavity of the combustion chamber;

[0015] A heat exchange component, which is used to exchange heat with the heat generated by biomass combustion in the inner cavity of the combustion chamber and heat the air introduced into the drying chamber by the air supply fan;

[0016] A feeding component, which is used to provide biomass fuel into the biomass combustion furnace.

[0017] Further, the combustion chamber includes an inner layer and an outer layer, the heat exchange component is a flow-through gap arranged between the inner layer and the outer layer, one end of the flow-through gap is connected to the air outlet end of the air supply fan through a pipeline, the other end of the flow-through gap is connected to the inner cavity of the drying chamber through a pipeline, and the air inlet end of the smoke exhaust pipe is connected to the inner cavity of the inner layer.

[0018] Compared with the prior art, the beneficial effects of the present utility model are as follows: by arranging the air supply fan and the heating furnace in the inner cavity of the heat insulation chamber, the heat radiated during the working process of the air supply fan and the heating furnace is limited in the heat insulation chamber. Coupled with the heat insulation effect of the hollow sandwich layer, the heat radiated by the air supply fan and the heating furnace can be greatly reduced from being dissipated into the environment; the outside air entering the heat insulation chamber is heated by the double heat sources of the condenser and the heating furnace in sequence, meeting the air flow temperature requirements at the inlet of the drying chamber. Moreover, the outside air can be preheated by the heat radiated to the side wall of the heat insulation chamber in the hollow sandwich layer, further reducing the heat loss and improving the utilization rate of heat. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1Schematic diagram of the structure of a dual heat source system for recovering and exhausting moisture heat in the embodiment;

[0021] Figure 2 Schematic diagram of the structure of the heating furnace in the embodiment;

[0022] Among them, 1. Air supply fan; 2. Drying chamber; 3. Heating furnace; 4. Heat insulation chamber; 401. Inner lining layer; 402. Outer shell layer; 403. Hollow interlayer; 5. First air inlet; 6. Second air inlet; 7. Condenser; 8. Evaporator; 9. Air inlet grille; 10. Inner layer; 11. Outer layer; 12. Smoke exhaust pipe; 13. Flow through gap. Detailed implementation manners

[0023] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] The following uses specific specific examples to illustrate the implementation manners of the present application. Those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The present application can also be implemented or applied through other different specific implementation manners. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, without conflict, the following embodiments and the features in the embodiments can be combined with each other. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative efforts belong to the scope of protection of the present application.

[0025] Embodiment

[0026] See Figure 1 And Figure 2 A dual heat source system for recovering and exhausting moisture heat, comprising:

[0027] An air supply fan 1, and the air supply fan 1 is used to introduce outside air into the drying chamber 2;

[0028] A heating furnace 3, and the heating furnace 3 is connected between the air supply fan 1 and the drying chamber 2, and is used to heat the air introduced into the drying chamber 2 by the air supply fan 1;

[0029] Heat-insulating chamber 4, the heat-insulating chamber 4 includes side walls and a top surface, the side walls and the top surface enclose to form a heat-insulating chamber, the side walls include an inner lining layer 401 and an outer shell layer 402, and a hollow interlayer 403 is between the inner lining layer 401 and the outer shell layer 402; the air supply fan 1 and the heating furnace 3 are both installed in the heat-insulating chamber 4, a first air inlet 5 for allowing outside air to enter the hollow interlayer 403 is provided on the outer shell layer 402, and a second air inlet 6 for allowing the air flow in the hollow interlayer 403 to enter the heat-insulating chamber is provided on the inner lining layer 401;

[0030] A heat pump, the heat pump includes a compressor, a condenser 7, an expansion throttle valve and an evaporator 8; the condenser 7 is arranged in the heat-insulating chamber 4, the evaporator 8 is installed on the moisture exhaust pipeline of the drying chamber 2, and the evaporator 8 is used for condensing and dehumidifying the water-containing air flow exhausted from the drying chamber 2.

[0031] In this embodiment, when the air supply fan 1 is in operation, outside air is inhaled from the first air inlet 5 of the heat-insulating chamber 4, passes through the hollow interlayer 403 of the heat-insulating chamber 4 and then enters the inner cavity of the heat-insulating chamber 4 from the second air inlet 6, and after being inhaled by the air supply fan 1, it is heated by the heating furnace 3 to form a hot air flow before flowing into the drying chamber 2, and finally the heated high-temperature air flow enters the drying chamber 2 to realize the drying of the materials in the drying chamber 2. In this embodiment, by arranging the air supply fan 1 and the heating furnace 3 both in the inner cavity of the heat-insulating chamber 4, the heat radiated during the operation of the air supply fan 1 and the heating furnace 3 is limited in the heat-insulating chamber 4, and together with the heat-insulating effect of the hollow interlayer 403, the heat radiated by the air supply fan 1 and the heating furnace 3 dissipated to the environment can be greatly reduced; the outside air entering the heat-insulating chamber 4 is heated by the double heat sources of the condenser 7 and the heating furnace 3 in sequence, meeting the air flow temperature requirements at the inlet of the drying chamber 2, and the outside air can be preheated by the heat radiated to the side walls of the heat-insulating chamber 4 in the hollow interlayer 403, which also further reduces the heat dissipation and improves the utilization rate of heat.

[0032] In this embodiment, the coil of the condenser 7 is arranged in the hollow interlayer 403 of the heat-insulating chamber 4, which is equivalent to preheating in the hollow interlayer 403 by using the heat radiated by the air supply fan 1, the heating furnace 3 and the heat generated by the operation of the condenser 7 at the same time, so that the ambient temperature of the condenser 7 matches the working characteristics of the condenser 7, ensuring the working condition stability of the condenser 7.

[0033] In this embodiment, the first air inlet 5 and the second air inlet 6 are oppositely arranged on the side wall of the heat-insulating chamber 4, which can increase the residence time of the outside air in the hollow interlayer 403 of the heat-insulating chamber 4 and improve the preheating effect on the outside air.

[0034] The second air inlet 6 includes a swirl hole (an inclined hole at a certain angle with the side wall surface) formed in the inner lining layer 401. After the outside air entering the hollow interlayer 403 is preheated, it is led out from the swirl hole and enters the inner cavity of the heat insulation chamber 4, forming a swirl, which can efficiently mix the hot air in the heat insulation chamber 4, ensure the uniformity of the temperature of the air flow entering the heat supply furnace 3 for heat exchange, and further ensure the temperature stability in the drying chamber 2.

[0035] In some other embodiments, a flow angle adjustable air intake grille 9 can also be provided on the second air inlet 6 to achieve a swirl effect on the air flow at the second air inlet 6. For example, an air intake grille 9 can be composed of grille units with adjustable air flow angles and installed on the second air inlet 6 of the inner lining layer 401.

[0036] The heat supply furnace 3 in this embodiment is a biomass combustion furnace, including:

[0037] A combustion chamber, the inner cavity of which is used to provide a place for the combustion of biomass fuel, and a smoke exhaust pipe 12 is arranged in the inner cavity of the combustion chamber;

[0038] A heat exchange component, which is used to exchange heat with the heat generated by the combustion of biomass in the inner cavity of the combustion chamber and heat the air introduced into the drying chamber 2 by the air supply fan 1;

[0039] A feeding component, which is used to supply biomass fuel into the biomass combustion furnace.

[0040] The preheated outside air exchanges heat with the heat generated by the combustion of biomass fuel through the heat exchange component to form a high-temperature air flow and enter the drying chamber 2. In this embodiment, the combustion chamber includes an inner layer 10 and an outer layer 11, the heat exchange component is a flow-through gap 13 arranged between the inner layer 10 and the outer layer 11, one end of the flow-through gap 13 is connected to the air outlet end of the air supply fan 1 through a pipeline, the other end of the flow-through gap 13 is connected to the inner cavity of the drying chamber 2 through a pipeline, and the air inlet end of the smoke exhaust pipe 12 is connected to the inner cavity of the inner layer 10.

[0041] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed in the present application should be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A dual heat source system for recovering dehumidification heat, characterized in that: include: An air supply fan (1), the air supply fan (1) being used to introduce outside air into the drying chamber (2); a heating furnace (3), the heating furnace (3) being connected between the air supply fan (1) and the drying chamber (2) and being used for heating the air introduced into the drying chamber (2) by the air supply fan (1); A heat-insulating chamber (4), the heat-insulating chamber (4) comprising a side wall and a top surface, the side wall and the top surface together forming a heat-insulating chamber, the side wall comprising an inner lining layer (401) and an outer shell layer (402), a hollow interlayer (403) being provided between the inner lining layer (401) and the outer shell layer (402); the air supply fan (1) and the heating furnace (3) are both installed in the heat-insulating chamber (4), the outer shell layer (402) is provided with a first air inlet (5) for allowing outside air to enter the hollow interlayer (403), and the inner lining layer (401) is provided with a second air inlet (6) for allowing airflow in the hollow interlayer (403) to enter the heat-insulating chamber; A heat pump, the heat pump comprising a compressor, a condenser (7), an expansion throttle valve and an evaporator (8); the condenser (7) is arranged in the heat-insulating chamber (4), the evaporator (8) is installed on the dehumidification pipe of the drying chamber (2), and the evaporator (8) is used to condense and dehumidify the water-containing airflow discharged from the drying chamber (2).

2. The dual heat source system for recovering dehumidification heat according to claim 1 is characterized in that: The coil of the condenser (7) is arranged in the hollow interlayer (403) of the insulation chamber (4).

3. The dual heat source system for recovering dehumidification heat according to claim 1, characterized in that: The first air inlet (5) and the second air inlet (6) are arranged on the side wall of the heat insulation chamber (4) opposite to each other.

4. The dual heat source system for recovering dehumidification heat according to claim 1, characterized in that: The second air inlet (6) comprises a swirl hole opened in the inner lining layer (401).

5. The dual heat source system for recovering dehumidification heat according to claim 1, characterized in that: The second air inlet (6) is provided with an air inlet grille (9) mounted on the inner lining layer (401), and the air inlet grille (9) comprises a grille unit with an adjustable airflow angle.

6. The dual heat source system for recovering dehumidification heat according to any one of claims 1 to 5, characterized in that: The heating furnace (3) is a biomass combustion furnace, comprising: A combustion chamber, wherein the inner cavity of the combustion chamber is used to provide a place for burning biomass fuel, and the inner cavity of the combustion chamber is provided with a smoke exhaust pipe (12); A heat exchange component is used to exchange heat with the heat generated by the combustion of biomass in the combustion chamber, and to heat the air introduced into the drying chamber (2) by the air supply fan (1); The feed assembly is used to provide biomass fuel to the biomass combustion furnace.

7. The dual heat source system for recovering dehumidification heat according to claim 6, characterized in that: The combustion chamber comprises an inner layer (10) and an outer layer (11); the heat exchange component is a flow gap (13) arranged between the inner layer (10) and the outer layer (11); one end of the flow gap (13) is connected to the air outlet of the air supply fan (1) through a pipeline; the other end of the flow gap (13) is connected to the inner cavity of the drying chamber (2) through a pipeline; and the air inlet end of the smoke exhaust pipe (12) is connected to the inner cavity of the inner layer (10).

Images