CN216245446U - Heated air circulation drying system - Google Patents
Heated air circulation drying system Download PDFInfo
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- CN216245446U CN216245446U CN202122277057.4U CN202122277057U CN216245446U CN 216245446 U CN216245446 U CN 216245446U CN 202122277057 U CN202122277057 U CN 202122277057U CN 216245446 U CN216245446 U CN 216245446U
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Abstract
The utility model discloses a hot air circulation drying system, relates to the technical field of drying equipment, and solves the technical problem that the drying efficiency is reduced due to single drying mode. The drying device is characterized by comprising an air supply channel, wherein an evaporator and a condenser are arranged in the air supply channel along an air supply direction, a compressor and a medium circulation pipeline are connected between the evaporator and the condenser, an air outlet of the air supply channel is connected with a circulating fan, an air outlet pipeline of the circulating fan is connected with an air supply box, a plurality of air nozzles are arranged on the air supply box, and an infrared heating device is further arranged on one side wall surface of the air supply box facing the air outlet direction of the air nozzles.
Description
Technical Field
The utility model relates to the technical field of drying equipment, in particular to a hot air circulation drying system.
Background
Chinese patent No. CN209623240U discloses a heat pump drying system, which comprises a heat pump refrigeration unit and a drying unit that are communicated with each other;
the heat pump refrigeration unit includes:
a compressor;
a condenser in communication with an outlet of the compressor;
an auxiliary condenser in communication with an outlet of the compressor and in parallel with the condenser;
an evaporator in communication with the condenser, the auxiliary condenser, and an inlet of the compressor;
a first valve for controlling the flow of a first medium between at least the condenser, the auxiliary condenser and the evaporator;
the drying unit comprises a drying chamber which is communicated with the condenser and the evaporator.
In the prior art, similar to the above-mentioned heat pump drying system, a drying medium, such as a drying air flow, sequentially flows through an evaporator, a condenser and a drying chamber, the drying air flow changes from a low-temperature low-humidity state to a high-temperature low-humidity state, the drying air flow in the high-temperature low-humidity state enters the drying chamber to dry an article, moisture in the article is diffused and separated under the influence of temperature, the air flow in the high-temperature high-humidity state circulates again, and the drying medium, such as the drying air flow, changes into the high-temperature low-humidity state through the evaporator and the condenser to continuously dry the article in the drying chamber.
The above prior art solutions have the following drawbacks: the existing hot air drying system mostly adopts a single drying mode, the mode that the moisture in the object to be dried is separated and emitted is single, and the drying efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the prior art, an object of the present invention is to provide a hot air circulation drying system, which has an advantage of improving drying efficiency.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a heated air circulation drying system, includes the air supply passageway, install evaporimeter and condenser along the air supply direction in the air supply passageway, tube coupling has compressor and medium circulation pipeline between evaporimeter and the condenser, the air outlet of air supply passageway is connected with circulating fan, circulating fan's air outlet tube coupling has the air supply case, set up a plurality of nozzles on the air supply case, the air supply case still installs infrared heating device on the outside wall towards the nozzle air-out direction.
By adopting the technical scheme, when the hot air circulation drying system operates, the circulating fan starts to operate to generate air pressure difference, air starts to flow under the action of the circulating fan and enters the air supply channel, the temperature in the environment is absorbed in the operation process of the evaporator, moisture in the air is condensed on the evaporator to form water drops to be discharged, and the air is changed into low-temperature drying airflow and continues to flow forwards along with the air supply channel; releasing temperature to the environment in the operation process of the condenser, enabling the low-temperature drying airflow to pass through the condenser, increasing the temperature of the low-temperature drying airflow to become high-temperature drying airflow, and continuously flowing into the air supply box under the action of the circulating fan; the high-temperature drying airflow is blown out from the air nozzle in the air supply box, and is matched with the infrared heating device to simultaneously dry the product to be dried outside the air nozzle. Infrared heating device gives out the infrared ray and arouses the molecule vibration to produce the heat, and the continuous heat absorption evaporation of hydrone is to the outside diffusion, and its moisture evaporation efficiency is improved in the cooperation of the dry mobile air current of high temperature simultaneously to take away the moisture that will diffuse to in the air, thereby promoted the drying efficiency of material.
The utility model is further configured to: and one side of the tail end of the airflow flowing direction blown out by the plurality of air nozzles is provided with an air return box, one side wall of the air return box facing the air nozzles is provided with an air return port, and the air return box is connected with the air inlet of the air supply channel through a pipeline.
By adopting the technical scheme, after the high-temperature dry airflow blown out from the air nozzle dries the material, the high-temperature dry airflow is recycled into the air supply channel through the air return box, so that the high-temperature dry airflow continuously passes through the evaporator and the condenser and then returns into the air supply channel to circulate, and the air volume and the drying operation efficiency in the air supply channel are ensured.
The utility model is further configured to: the air return device is characterized in that an air return machine is arranged on a connecting pipeline of an air outlet of the air return box and an air inlet of the air supply channel, the air inlet of the air return machine is connected with the air return box, and the air outlet of the air return machine is connected with the air inlet of the air supply channel.
Through adopting above-mentioned technical scheme, the fan that returns is used for cooperating circulating fan to guarantee air supply channel and air supply box air current endless conveyor's efficiency.
The utility model is further configured to: the return air case still is connected with the exhaust pipe, the pipeline of being connected between return air case and the return air machine is linked together with the exhaust pipe, and is located the exhaust pipe and installs adjustable three-way valve with the intercommunication department between the pipeline of being connected between return air case and the return air machine, closes on to install control on the exhaust pipe of return air case air outlet department the first sensor of adjustable three-way valve.
Through adopting above-mentioned technical scheme, first sensor is used for detecting in the return-air case recovered air current state such as humidity and temperature, and when the humidity condition such as the recovery air current was too big appearing, the action of adjustable three way valve passes through the exhaust pipe with the recovery air current and discharges, no longer retrieves to heated air circulation drying system inner loop to guarantee the intensification dehumidification efficiency to the air current in the heated air circulation drying system.
The utility model is further configured to: and the side wall of the pipeline connecting the air return fan and the exhaust pipe is also connected with an air supplementing pipe, the air supplementing pipe is provided with an air supplementing valve, and the pipeline connecting the air return fan and the air supplementing pipe is provided with a second sensor for controlling the air supplementing valve.
Through adopting above-mentioned technical scheme, the air supplement pipe can supply outside air in the hot-blast circulation drying system and be used for guaranteeing the air current flow in the drying system, and the second sensor is used for detecting the air current state in the pipeline such as airflow in order to control the automatic switching of air supplement valve. Under the condition of need, gases with special drying requirements such as inert gases and the like can be provided through the air supplementing pipe and the external gas cylinder, and the applicability of the drying system is improved.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the infrared heating device is matched with high-temperature drying air flow for use, so that the operation efficiency of material drying is improved;
(2) the drying circulation is realized by arranging the air return box to be connected with the air supply channel through a pipeline, so that the drying efficiency is improved;
(3) the drying efficiency is guaranteed through the arrangement of the air supplementing pipe, and meanwhile the applicability of the drying system is improved.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Reference numerals: 1. an air supply channel; 2. an evaporator; 3. a condenser; 4. a compressor; 5. a medium circulation line; 6. a circulating fan; 7. an air supply box; 71. a tuyere; 72. an infrared heating device; 8. an air return box; 81. an air return opening; 82. an exhaust duct; 83. an adjustable three-way valve; 84. a first sensor; 9. a return fan; 91. air supplementing pipes; 92. an air supplement valve; 93. a second sensor; 821. an air exhaust outer pipe orifice; 911. the outer pipe orifice of the air supplement.
Detailed Description
The utility model is described in detail below with reference to the figures and examples.
The utility model discloses a hot air circulation drying system, which comprises an air supply channel 1, wherein an evaporator 2 and a condenser 3 are arranged in the air supply channel 1 along the air supply direction, and a compressor 4 and a medium circulation pipeline 5 are connected between the evaporator 2 and the condenser 3 and positioned at the outer side of the air supply channel 1 through pipelines, as shown in an embodiment of a figure 1. An air outlet pipeline of the air supply channel 1 is connected with a circulating fan 6, an air outlet pipeline of the circulating fan 6 is connected with an air supply box 7, a plurality of air nozzles 71 are arranged on the air supply box 7, and an infrared heating device 72 is arranged on the outer side wall surface of the air supply box 7 facing the air outlet direction of the air nozzles 71. The infrared heating device 72 on the air supply box 7 and the air nozzle 71 jointly dry the materials, so that the drying operation efficiency is improved.
As shown in fig. 1, a return box 8 is provided at one end of the plurality of nozzles 71 in the flow direction of the air flow, and the return box 8 in this embodiment is located below the supply box 7 and has the same size as the supply box 7. The air return box 8 is provided with an air return opening 81 extending along the length direction on one side wall surface facing the air nozzle 71, the air outlet of the air return box 8 is connected with an exhaust pipe 82, the side wall of the exhaust pipe 82 is also connected with an air return machine 9 through a pipeline, the air inlet of the air return machine 9 is communicated with the side wall of the exhaust pipe 82, and the air outlet pipeline of the air return machine 9 is connected with the air inlet of the air supply channel 1. The first sensor 84 is installed at the position, close to the air outlet of the air return box 8, of the exhaust pipe 82, the pipeline connected between the air return box 8 and the air return machine 9 is communicated with the exhaust pipe 82, the adjustable three-way valve 83 is installed at the position, located on the exhaust pipe 82, of the communication position between the pipeline connected between the air return box 8 and the air return machine 9, the first sensor 84 controls the action of the adjustable three-way valve 83, and the air return box 8 and the air return machine 9 or the air return box 8 and the air exhaust outer pipe opening 821 are selectively communicated. The first sensor 84 in this embodiment is a humidity sensor for detecting the humidity of the recovered air flow in the air return box 8, when the humidity is lower than the set humidity of the first sensor 84, the adjustable three-way valve 83 is actuated, and the recovered air flow returns to the air supply channel 1 through the air return box 8 under the action of the air return fan 9 to continue heating and dehumidifying for drying; when the humidity is higher than the set humidity of the first sensor 84, the adjustable three-way valve 83 is actuated, and the recovered air flow is directly discharged from the exhaust outer pipe port 821 through the return air box 8.
As shown in fig. 1, an air supply pipe 91 is connected to a side wall of a pipeline connecting the air return fan 9 and the exhaust pipe 82, an air supply valve 92 is installed on the air supply pipe 91, a second sensor 93 is installed on a pipeline connecting the air return fan 9 and the air supply pipe 91, and the second sensor 93 is used for detecting an air flow state in the pipeline to control the air supply valve 92 to move and communicate with an air supply outer pipe opening 911. In this embodiment, the second sensor 93 is a flow sensor, and when the air flow in the pipeline connecting the air return fan 9 and the air supply pipe 91 is smaller than a set value, the second sensor 93 sends a signal to control the air supply valve 92 to open, and the air suction pipeline around the air supply outer pipe opening 911 enters the air supply channel 1 to be heated and dehumidified for drying. Under the condition of special drying requirements, a gas cylinder can be connected to the air supply outer pipe opening 911 to supply required special gas into the drying system.
The working process and the beneficial effects of the utility model are as follows: when the hot air circulation drying system operates, the circulation fan 6 and the return fan 9 start to operate to generate air pressure difference, and air in the hot air circulation drying system starts to flow under the action of the circulation fan 6 and the return fan 9. When the air current passes through the evaporator 2, because the temperature in the environment is absorbed in the operation process of the evaporator 2, the moisture in the air is condensed into water drops on the evaporator 2 to be discharged, and the air is changed into low-temperature drying current through the evaporator 2 and continuously flows forwards along with the air supply channel 1; the condenser 3 releases temperature to the environment in the operation process, the low-temperature drying airflow passes through the condenser 3, the temperature of the low-temperature drying airflow is increased to be changed into high-temperature drying airflow, and the high-temperature drying airflow continuously flows into the air supply box 7 under the action of the circulating fan 6. The high-temperature drying air flow is blown out from the air nozzle 71 on the air supply box 7, and is matched with the infrared heating device 72 to simultaneously dry the product to be dried outside the air nozzle 71. The air current saturated with moisture after being blown by the product material can selectively return to the air supply channel 1 through the air return box 8 to continue to circulate or be directly discharged to the external environment.
The infrared emission wavelength emitted by the infrared heating device 72 makes the internal molecules of the product to be dried generate vibration friction to generate heat, the water molecules continuously absorb heat to evaporate and diffuse from inside to outside, the moisture diffusion and the heat diffusion directions of the moisture in the product to be dried are consistent, and the drying process is accelerated. Meanwhile, the drying air flow is firstly in a low-temperature drying state and then is in a high-temperature drying state in the circulating process, so that the drying degree of the drying air flow is improved, the high temperature of the air flow is matched with the high-temperature drying air flow to improve the diffusion evaporation efficiency of the moisture in the material, and the high-temperature drying air flow blown out through the air nozzle 71 is combined with the moisture in the air, so that the moisture capacity and the effect of taking away the moisture diffused to the air are enhanced, and the efficiency of the drying system in drying operation is improved.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (5)
1. The utility model provides a heated air circulation drying system, its characterized in that, includes air supply passageway (1), install evaporimeter (2) and condenser (3) along the air supply direction in air supply passageway (1), pipe connection has compressor (4) and medium circulation pipeline (5) between evaporimeter (2) and condenser (3), the air outlet of air supply passageway (1) is connected with circulating fan (6), the air outlet pipe connection of circulating fan (6) has air supply box (7), set up a plurality of nozzles (71) on air supply box (7), air supply box (7) still install infrared heating device (72) on the outside wall towards nozzle (71) air-out direction.
2. The hot air circulation drying system according to claim 1, wherein: and one side of the tail end of the flowing direction of the airflow blown out by the air nozzles (71) is provided with an air return box (8), one side wall surface of the air return box (8) facing the air nozzles (71) is provided with an air return port (81), and the air return box (8) is connected with an air inlet of the air supply channel (1) through a pipeline.
3. The hot air circulation drying system according to claim 2, wherein: the air return device is characterized in that an air return fan (9) is arranged on a connecting pipeline of an air outlet of the air return box (8) and an air inlet of the air supply channel (1), an air inlet of the air return fan (9) is connected with the air return box (8), and an air outlet of the air return fan (9) is connected with an air inlet of the air supply channel (1).
4. The hot air circulation drying system according to claim 3, wherein: return air case (8) still are connected with exhaust pipe (82), the pipeline of being connected between return air case (8) and return air machine (9) is linked together with exhaust pipe (82), and is located exhaust pipe (82) and installs adjustable three-way valve (83) with the intercommunication department between the pipeline of being connected between return air case (8) and return air machine (9), installs control on exhaust pipe (82) of closing on return air case (8) air outlet department first sensor (84) of adjustable three-way valve (83).
5. The hot air circulation drying system according to claim 3, wherein: still be connected with air supplement pipe (91) on fan return (9) and the pipeline lateral wall that links to each other of exhaust pipe (82), install on air supplement pipe (91) and mend air valve (92), install control on fan return (9) and the pipeline that links to each other of air supplement pipe (91) second sensor (93) of air supplement valve (92).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122277057.4U CN216245446U (en) | 2021-09-18 | 2021-09-18 | Heated air circulation drying system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122277057.4U CN216245446U (en) | 2021-09-18 | 2021-09-18 | Heated air circulation drying system |
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| CN216245446U true CN216245446U (en) | 2022-04-08 |
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| CN202122277057.4U Active CN216245446U (en) | 2021-09-18 | 2021-09-18 | Heated air circulation drying system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116140309A (en) * | 2023-04-23 | 2023-05-23 | 常州磐诺仪器有限公司 | Air bag cleaning and purifying system and method |
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2021
- 2021-09-18 CN CN202122277057.4U patent/CN216245446U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116140309A (en) * | 2023-04-23 | 2023-05-23 | 常州磐诺仪器有限公司 | Air bag cleaning and purifying system and method |
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