Heat pump type tail heat recovery counterflow drying machine

A tail heat recovery and dryer technology, applied in dryers, heat recovery systems, drying, etc., can solve problems such as personnel and equipment safety accidents, strong vibration, etc., and achieve extended service life, high strength, and reliable use Effect

Active Publication Date: 2015-11-18
安徽上元家居材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once part of the hardened dust is shaken off, it will immediately leave the dynamic rotation balance of the induced draft fan, and then generate strong vibration, which may cause serious personnel and equipment safety accidents

Method used

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  • Heat pump type tail heat recovery counterflow drying machine
  • Heat pump type tail heat recovery counterflow drying machine
  • Heat pump type tail heat recovery counterflow drying machine

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0029] Now in conjunction with accompanying drawing, the present invention is described in further detail.

[0030] Such as figure 1 , figure 2 , image 3 with Figure 4 The shown heat pump tail heat recovery countercurrent dryer includes a dryer 11 and an induced draft fan A. The two ends of the dryer 11 are respectively provided with an exhaust hood 6 and an air intake hood 12. The exhaust hood 6 is connected to the induced draft fan A, and the induced draft fan A is emptied after being connected to the evaporator 22 of the heat pump system through the cyclone dust collector 21; the evaporator 22 of the heat pump system is connected to the main engine 25 through the refrigerant pipe 24, and the main engine 25 is connected to the condenser 26 through the refrigerant pipe 24; the air outlet end of the blower 27 is passed through the condenser 26 is connected to the air inlet cover 12; the induced draft fan includes a fan impeller 41 and a casing 45, and the fan impeller 41...

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PUM

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Abstract

The invention discloses a heat pump type tail heat recovery counterflow drying machine. A draught hood of the drying machine is connected with an induced draft fan, the induced draft fan is connected with an evaporator of a heat pump system through a cyclone dust collector, and then evacuation is carried out. The evaporator of the heat pump system is connected with a main engine through a refrigerant tube, and the main engine is connected with a condenser through a refrigerant tube. The air outlet end of an air blower is connected with an air inlet hood through the condenser. An impeller of the induced draft fan is provided with a structure with hollow inverted-drop-shaped blades. The contour line of the appearance of the induced draft fan is an involute. The induced draft fan, a heat exchanger and a closed cone hopper below a screen plate steel rip are arranged, an axial fan is arranged in the cone hopper, so that penetrating type counterflow low-temperature drying of materials is achieved, and the heat pump system is especially suitable for recovery of heat of low-temperature tail gas. The blades are of a hollow inverted drop shape, so that dust on the impeller of the induced draft fan is removed in real time, the strength of the impeller of the fan is increased, and stability is improved; and potential safety hazards caused by dust accumulation are effectively eradicated, and wide application prospects are achieved.

Description

technical field [0001] The invention relates to a drying machine, in particular to a heat pump tail heat recovery countercurrent drying machine in which a fan does not accumulate dust. Background technique [0002] People generally refer to drying with a drying temperature below 60 degrees Celsius as low-temperature drying. Low-temperature drying is widely used in the drying of heat-sensitive materials such as crop seeds, Chinese medicinal materials, and biological products. Due to its mature technology, strong adaptability, low operating cost and high reliability, hot air dryer is still one of the first choice equipment for low temperature drying. Low-temperature drying is less easy to recover tail heat due to the lower exhaust temperature. If the penetration and countercurrent drying of materials can be realized in the hot-air low-temperature drying process, and the tail heat can be effectively recovered, it will be of great significance for improving drying efficiency an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B17/04F26B21/00F25B27/02F26B3/06F04D29/28F04D29/30F04D29/42F04D29/66F04D29/70
CPCY02A30/274Y02B30/52Y02P70/10
Inventor 张旭张鹏银永忠张思言张驰
Owner 安徽上元家居材料股份有限公司
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