CN216592493U

CN216592493U - Wind-heat type solar energy drying-machine

Info

Publication number: CN216592493U
Application number: CN202122641994.3U
Authority: CN
Inventors: 邓天元
Original assignee: Wuhan Saier Solar Energy Technology Co ltd
Current assignee: Wuhan Saier Solar Energy Technology Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-05-24
Anticipated expiration: 2031-10-29

Abstract

The utility model relates to a wind-heat type solar dryer which comprises a drying box, a solar thermal collector and a fan, wherein the air inlet end of the solar thermal collector is communicated with the upper part of the drying box, the air outlet end of the solar thermal collector is communicated with the lower part of the drying box, the fan is arranged between the solar thermal collector and the drying box, the top end of the drying box is provided with an exhaust port, and other drying equipment is also connected with a standby interface. The utility model solves the problems that when the hydrothermal solar heat collector is used for drying, the heat efficiency is not high and the conversion cost is high due to repeated conversion heat collection; the problem of high energy consumption in the process of using electric heating drying and air source heat pump drying is also solved; the environmental problem caused by drying other traditional energy sources, such as the problem of carbon dioxide emission, is solved.

Description

Wind-heat type solar energy drying-machine

Technical Field

The utility model relates to the technical field of solar heat conversion, in particular to a wind-heat type solar dryer.

Background

The solar photovoltaic power generation conversion rate is seen from the application condition of the current market, and the photoelectric conversion rate does not exceed 20 percent of the actual application case; the absorption ratio of solar photo-thermal application is over 90 percent for blue films, black chromium and the like. Solar photo-thermal is widely applied to household life and public hot water systems, and makes a very beneficial contribution to the renewable utilization of solar energy. However, the application of the solar photo-thermal system in the fields of industry, agriculture and the like is very slow, and the application range of the solar photo-thermal system is limited by the problems of conversion efficiency, convenience in use, safety, reasonableness, economic reliability of investment, frost resistance and the like of the traditional solar energy which uses liquid as a conversion heat transfer medium.

At present, only partial records and small-scale application scenes of a solar wind-heat type heat collector are found in documents, the heat collector is not subjected to large-scale industrial production and application, and a plurality of problems need to be solved: firstly, the conversion cost of the hydrothermal solar heat collector for drying is high; secondly, the heat efficiency is not high due to the use of multiple conversion heat collection; thirdly, the system is very economically inefficient in providing the thermal energy requirements needed for large-scale applications.

SUMMERY OF THE UTILITY MODEL

The utility model provides a wind-heat type solar dryer aiming at the technical problems in the prior art, and aims to solve the problems that when a hydrothermal type solar heat collector is used for drying, the heat efficiency is low and the conversion cost is high due to the fact that heat is collected through multiple conversion.

The technical scheme for solving the technical problems is as follows:

the utility model provides a wind-heat type solar drying-machine, includes drying cabinet, solar collector and fan, the inlet end of solar collector and the upper portion intercommunication of drying cabinet, the lower part intercommunication of the end of giving vent to anger and drying cabinet of solar collector, the fan sets up between solar collector and drying cabinet, the top of drying cabinet is equipped with the steam vent.

On the basis of the technical scheme, the utility model can be further improved as follows.

Preferably, the solar thermal collector comprises an air inlet flange, an air outlet flange and a plurality of solar thermal collection modules arranged in an array, the solar thermal collection modules are connected in series through a pipeline, the air inlet flange is communicated with the upper part of the drying box and the air inlet end of the solar thermal collection module array, and the air outlet flange is communicated with the lower part of the drying box and the air outlet end of the solar thermal collection module array.

Preferably, each solar heat collection module comprises a solar heat collection plate and a heating bin which are fixedly connected, and adjacent heating bins are communicated through a connecting pipe to form a flow channel connected in series.

Preferably, be equipped with intake pipe and outlet duct on the drying cabinet, the intake pipe passes through the flange of giving vent to anger communicates with the heated warehouses, the outlet duct passes through the flange of admitting air and communicates with the heated warehouses, the fan sets up on outlet duct or intake pipe.

Preferably, the drying box is provided with a material door capable of being opened and closed, and an air hole is reserved when the material door is closed.

Preferably, a standby dehumidification interface is arranged on the drying box and can be opened and closed.

Preferably, the solar drying oven further comprises a support frame, and the solar thermal collector is arranged above the drying oven through the support frame.

The utility model has the beneficial effects that: the wind-heat type solar dryer adopts a combined integration technology, leads out the heat of the solar wind-heat type heat collector successfully by taking gas as a heat transfer medium and directly applies the heat to materials in the drying box, does not need to undergo multiple heat conversions, and has high heat utilization rate and low conversion cost; because the high-flux low-noise fan is adopted to pump the gas in the drying box into the solar heat collector for heating, the heated gas enters the drying box from the lower end, and the steam evaporated from the dried material is discharged through the steam outlet at the top end of the drying box due to the principle that hot gas rises, the material drying efficiency is high; the gas of not discharging the drying cabinet gets into solar collector once more under the effect of fan, has utilized gaseous waste heat, realizes heating gaseous recycling for the thermal efficiency is showing and is improving, has avoided the heat energy extravagant, and the energy consumption greatly reduces, has still reduced the dry environmental problem such as carbon dioxide emission that brings of other traditional energy.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a top view of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. drying cabinet, 2, solar collector, 201, solar energy collection module, 3, support frame, 4, the flange of giving vent to anger, 5, intake pipe, 6, the outlet duct, 7, steam vent, 8, fan, 9, connecting pipe, 10, reserve dehumidification interface, 11, material door, 12, the flange of admitting air.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1-3, this embodiment provides a wind-heat type solar drying-machine, including drying cabinet 1, solar collector 2 and fan 8, the inlet end of solar collector 2 and the upper portion intercommunication of drying cabinet 1, the lower part intercommunication of the end of giving vent to anger and drying cabinet 1 of solar collector 2, fan 8 sets up between solar collector 2 and drying cabinet 1, the top of drying cabinet 1 is equipped with steam vent 7.

The drying box 1 and the solar heat collector 2 form a circulating system of the gas heat transfer medium under the driving action of the fan 8. The solar heat collector 2 heats the gas heat transfer medium by using solar energy, the heated gas heat transfer medium directly heats and dries the material to be dried in the drying box 1, and water vapor generated by material drying is discharged from the steam outlet 7 along with rising hot gas. The gas which is not discharged enters the solar heat collector 2 again under the action of the fan 8 for recycling, and the residual temperature in the gas is fully utilized. The scheme of the embodiment does not need to be subjected to multiple heat conversions, the utilization rate of heat energy is high, and the conversion cost is low; the hot gas directly dries the materials, so that the drying efficiency of the materials is high; the waste heat of the gas is utilized, the recycling of the heating gas is realized, the heat efficiency is obviously improved, the waste of heat energy is avoided, and the energy consumption is greatly reduced.

On the basis of the above technical solution, the present embodiment can be further improved as follows.

In this embodiment, the solar thermal collector 2 includes an air inlet flange 12, an air outlet flange 4 and a plurality of solar thermal collection modules 201 arranged in an array, the plurality of solar thermal collection modules 201 are connected in series through a pipeline, the air inlet flange 12 is communicated with the upper portion of the drying box 1 and the air inlet ends of the solar thermal collection modules 201 array, and the air outlet flange 4 is communicated with the lower portion of the drying box 1 and the air outlet ends of the solar thermal collection modules 201 array. According to the scale of material drying and the actual production requirement, the number of the solar heat collection modules 201 can be flexibly designed, so that the temperature of the gas heat transfer medium required by material drying is controlled. For example, when the required drying temperature is high, the number of solar heat collecting modules 201 connected in series may be increased.

In this embodiment, each solar heat collection module 201 includes a solar heat collection plate and a heating chamber which are fixedly connected, as shown in fig. 3, adjacent heating chambers are communicated with each other through a connection pipe 9 to form a series-connected flow channel, and adjacent heating chambers are communicated with each other through a plurality of connection pipes 9 arranged in parallel. Solar collector panels are metal plates coated with a selective absorbing coating that absorbs the energy in sunlight, converts the sunlight into heat, and rapidly heats a gaseous medium, such as air, in a heated chamber. For convenience of the following description, the present embodiment is exemplified by using air as the gas heat transfer medium.

As shown in fig. 1 and 2, an air inlet pipe 5 and an air outlet pipe 6 are arranged on the drying oven 1, the air inlet pipe 5 is communicated with the heating bin through an air outlet flange 4, the air outlet pipe 6 is communicated with the heating bin through an air inlet flange 12, and the fan 8 is arranged on the air outlet pipe 6 or the air inlet pipe 5. In the embodiment, the large-flux low-noise fan 8 is adopted to meet the requirement of the solar heater on the air volume; because the air temperature before carrying out the material drying is higher than the temperature after the drying, in order to reduce the calorific loss of hot-air, consider simultaneously reducing the ageing harm of high temperature to fan 8, set up fan 8 on outlet duct 6 of drying cabinet 1. The hot gas after the heating gets into drying cabinet 1 from drying cabinet 1 lower part, because the principle that hot gas rises, the gaseous heat-transfer medium after the heating from down and directly acts on the material and dries the material, has promoted drying efficiency on the material.

As shown in fig. 1, an openable material door 11 is provided on the drying box 1, and an air hole is left when the material door 11 is closed. The material gate 11 can be used to change dry material and also provide a small air inlet. After the dryer runs for a long time, because the process of continuously discharging water vapor outwards relates to the pressure relief of the drying box 1, in order to balance the air pressure difference inside and outside the drying box 1, the drying box 1 can suck partial air from the tiny air holes at the material door 11, and the air pressure difference inside and outside the drying box 1 is reduced.

Preferably, the drying cabinet 1 is provided with a standby dehumidification port 10, the standby dehumidification port 10 is openable and closable, and the standby dehumidification port is closed when the drying machine is in normal use. The standby dehumidifying interface 10 is used for starting the interface when solar energy is insufficient, for example, in rainy days, and connecting an air inlet and an air outlet of a dehumidifier or an air source drying dehumidifier through the standby dehumidifying interface 10, so that uninterrupted production without weather influence is realized, and the material drying production efficiency is guaranteed.

In this embodiment, in order to save the floor space of this dryer, this dryer still includes support frame 3, solar collector 2 passes through support frame 3 sets up in drying cabinet 1 top. Through the mode of space stack, reduced the holistic area of this equipment.

In the normal use state of the dryer of the present embodiment, the standby dehumidification interface 10 is closed, and the operation principle is as follows:

1. the selective absorption coating is used on the metal plate base material of the wind-heat type solar heat collector 2, so that sunlight is converted into heat, and air in the heating bin is rapidly heated.

2. After air in the air-heating type solar heat collector 2 is heated, air in a drying oven (namely the drying box 1) of the drying machine is pumped out and pressurized by the fan 8 and is sent to the air-heating type solar heat collector 2 array, the air heated to a certain temperature by the solar energy in the air-heating type solar heat collector 2 array is replaced, and the air is sent to the drying box 1 through the air inlet pipe 5 connected with the air outlet flange 4.

3. The material to be heated or to be dried in the drying box 1 is heated by hot air from below to above, the moisture is evaporated, and the water vapor is discharged through the steam outlet 7, thereby achieving the purpose of drying or drying the material.

4. When a large amount of materials need to be dried, or in rainy days, a dehumidifier, an air source drying dehumidifier or other auxiliary heat source forms can be selected, and at the moment, an external dehumidification power source is needed. The equipment is provided with a standby dehumidification interface 10 according to the requirement, wherein the standby dehumidification interface 10 comprises a group of air inlets and outlets which can be used up and down and are used as air inlets and outlets of a dehumidifier or an air source drying dehumidifier.

5. This drying-machine chooses 2 arrays of solar collector for use, can set up array combination size according to user's actual demand.

In addition, the following description is provided: the drying dryer of the solar heat collector 2 mainly uses air or other mixed fluid as fluid to be heated by the heat collector for use. If applied to the processing of living, collective, group, agricultural, forestry products, etc., it is recommended to use air as the fluid, and if used for some purpose in the industry, other mixed gases may also be heated.

The wind-heat type solar dryer adopts a combined integration technology, leads out heat of the solar wind-heat type heat collector successfully by taking gas as a heat transfer medium and directly applies the heat to materials in the drying box 1 without multiple heat conversions, and has high heat utilization rate and low conversion cost; because the high-flux low-noise fan 8 is adopted to pump the gas in the drying box 1 into the solar heat collector 2 for heating, the heated gas enters the drying box 1 from the lower end, and the steam evaporated from the dried material is discharged through the steam outlet 7 at the top end of the drying box 1 due to the principle that hot gas rises, the material drying efficiency is high; the gas of drying cabinet 1 that does not discharge gets into solar collector 2 again under the effect of fan 8, has utilized gaseous waste heat, realizes heating gaseous recycling for the thermal efficiency is showing and is improving, has avoided the heat energy extravagant, and the energy consumption greatly reduces.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a wind-heat type solar drying-machine, its characterized in that includes drying cabinet (1), solar collector (2) and fan (8), the inlet end of solar collector (2) and the upper portion intercommunication of drying cabinet (1), the lower part intercommunication of the end of giving vent to anger and drying cabinet (1) of solar collector (2), fan (8) set up between solar collector (2) and drying cabinet (1), the top of drying cabinet (1) is equipped with steam escape (7).

2. The wind-heat type solar dryer is characterized in that the solar heat collector (2) comprises an air inlet flange (12), an air outlet flange (4) and a plurality of solar heat collecting modules (201) arranged in an array, the solar heat collecting modules (201) are connected in series through a pipeline, the air inlet flange (12) is communicated with the upper portion of the drying box (1) and the air inlet end of the solar heat collecting module array, and the air outlet flange (4) is communicated with the lower portion of the drying box (1) and the air outlet end of the solar heat collecting module array.

3. A wind-heat type solar dryer according to claim 2, characterized in that each solar heat collection module (201) comprises a solar heat collection plate and a heating chamber which are fixedly connected, and adjacent heating chambers are communicated through a connecting pipe (9) to form a flow passage in series.

4. A wind-heat type solar dryer according to claim 2, characterized in that, be equipped with intake pipe (5) and outlet duct (6) on drying cabinet (1), intake pipe (5) are through outlet flange (4) and heated warehouses intercommunication, outlet duct (6) are through inlet flange (12) and heated warehouses intercommunication, fan (8) set up on outlet duct (6) or intake pipe (5).

5. A wind-heat type solar dryer according to claim 1, characterized in that the drying box (1) is provided with an openable material door (11), and the material door (11) is closed to leave an air hole.

6. The wind-heat type solar dryer according to claim 1, characterized in that a spare dehumidifying interface (10) is arranged on the drying box (1), and the spare dehumidifying interface (10) can be opened and closed.

7. The wind-heat type solar dryer according to claim 1, characterized in that further comprises a support frame (3), the solar collector (2) is arranged above the drying box (1) through the support frame (3).