Heat pump drying line

Abstract

A heat pump drying line comprises a heat pump system and a chain network conveying system and further comprises a water cooling system, the water cooling system comprises a water cooler, a cooling tower, a water pump and an electric proportioning valve, and the output end of the cooling tower is connected with the input end of the water cooler through the water pump and the electric proportioning valve. The output end of the water cooler is connected with the input end of the cooling tower; the heat pump system comprises a compressor, a first condenser, a first condensation fan matched with the first condenser, a second condenser, a second condensation fan matched with the second condenser, an expansion valve, a heat recoverer and an evaporator, the first condenser and the second condenser are arranged in parallel, and the heat recoverer comprises a heat recovery channel and a heat output channel; and the chain net conveying system comprises a conveying belt and a variable frequency motor for driving the conveying belt. The rubber product drying device can be used for drying rubber products, and is more environment-friendly and higher in efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to heat pump technical field especially a kind of heat pump drying line. BACKGROUND

[0002] Rubber products need to be dried and cured quickly during production, and currently, rubber products are dried by open kiln-type tunnel furnace, the heating temperature of kiln-type tunnel furnace can reach 100~120℃, which can meet the requirements of rubber product drying temperature, but since harmful gases are released during the heating process of rubber products, the open heating method obviously has safety hazards, so a more environmentally friendly rubber product drying system needs to be sought. SUMMARY

[0003] The technical problem to be solved by the utility model is to provide a heat pump drying line, which can dry rubber products and is more environmentally friendly and has higher efficiency.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a heat pump drying line, comprising a heat pump system and a chain net conveying system, further comprising a water cooling system, the water cooling system comprises a water cooler, a cooling tower, a water pump and an electric proportional regulating valve, the output end of the cooling tower is connected with the input end of the water cooler through the water pump and the electric proportional regulating valve, and the output end of the water cooler is connected with the input end of the cooling tower; the heat pump system comprises a compressor, a first condenser, a first condensing fan matched with the first condenser, a second condenser, a second condensing fan matched with the second condenser, an expansion valve, a heat recovery device and an evaporator, the first condenser and the second condenser are arranged in parallel, and the heat recovery device comprises a heat recovery channel and a heat output channel; the chain net conveying system comprises a conveying belt and a variable frequency motor driving the conveying belt; the first condenser and the first condensing fan are arranged above the conveying belt, the second condenser and the second condensing fan are arranged below the conveying belt, and the hot air output by the first condenser through the first condensing fan returns to the input end of the first condenser after sequentially passing through the conveying belt, the second condenser, the second condensing fan, the conveying belt, the heat recovery channel of the heat recovery device, the water cooler, the evaporator and the heat output end of the heat recovery device. The principle of the utility model is as follows: the first condenser and the second condenser are arranged in parallel, the refrigerant output by the compressor is supplied to the two condensers at the same time, two heating sources are formed, the material is subjected to first heat exchange after air is heated to hot air at specified temperature by the first condenser, the temperature of the hot air after heat exchange is lowered, the material is subjected to second heat exchange again after the hot air is heated to specified temperature by the second condenser, so that continuous, rapid and high-temperature drying of the material is ensured, and the purpose of rapid drying and curing of raw rubber is achieved, especially for rubber products; the circulating air path of the heat pump system is closed, harmful gases generated by rubber products cannot diffuse outward, and it is more environmentally friendly; the chain net conveying system cooperates with the heat pump system to realize continuous drying of rubber products, and the production efficiency is higher.

[0005] As an improvement, the first condenser and the second condenser are arranged in an up-down staggered manner.

[0006] As an improvement, the conveying belt is mounted on a conveying frame, and the first condenser fan, the second condenser and the second condensing fan are mounted on the conveying frame; the compressor, the first condenser, the expansion valve, the heat recovery device and the evaporator are arranged in a heat preservation box, and the heat preservation box is arranged on the top of the conveying frame and above the conveying belt.

[0007] As an improvement, the conveying belt is provided with a first heating area and a second heating area, and a partition plate is arranged between the first heating area and the second heating area; the first condensing fan is aligned with the first heating area, and the second condensing fan is aligned with the second heating area.

[0008] The utility model compared with prior art brings beneficial effect is:

[0009] The first condenser and the second condenser are arranged in parallel, the refrigerant output by the compressor is supplied to the two condensers at the same time, two heating sources are formed, the material is subjected to first heat exchange after air is heated to hot air at a specified temperature by the first condenser, the temperature of the hot air after heat exchange is lowered, the material is subjected to second heat exchange after the hot air is heated to a specified temperature by the second condenser, and the material can be continuously, rapidly and high-temperature dried, and the purpose of rapidly drying and curing raw rubber is achieved for rubber products; the circulating air path of the heat pump system is closed, harmful gases generated by the rubber products cannot be diffused outward, and the utility model is more environmentally friendly; the chain net conveying system cooperates with the heat pump system, continuous drying of the rubber products is realized, and the production efficiency is higher. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1 The utility model is a structural block diagram. DETAILED DESCRIPTION

[0011] The utility model will be further described below in combination with the drawings of the specification.

[0012] As Figure 1The heat pump drying line comprises a heat pump system, a chain net conveying system and a water cooling system. The water cooling system comprises a water cooler, a cooling tower, a water pump and an electric proportional regulating valve. The output end of the cooling tower is connected with the input end of the water cooler through the water pump and the electric proportional regulating valve, and the output end of the water cooler is connected with the input end of the cooling tower. The water flow can be adjusted through the electric proportional regulating valve, so as to control the temperature of the water cooler and adjust the temperature according to the heat of circulating air. The heat pump system comprises a compressor, a first condenser, a first condensing fan matched with the first condenser, a second condenser, a second condensing fan matched with the second condenser, an expansion valve, a heat recovery device and an evaporator. The first condenser and the second condenser are arranged in parallel, and the output end of the compressor is connected with the two condensers. The heat recovery device comprises a heat recovery channel and a heat output channel. The heat recovery device comprises stacked metal sheets, and channels are formed between adjacent metal sheets. The heat recovery channel and the heat output channel are arranged vertically and spaced apart from each other. The chain net conveying system comprises a conveying belt and a variable frequency motor driving the conveying belt. The variable frequency motor drives the conveying belt through a chain and a sprocket. The conveying speed of the conveying belt can be adjusted by adjusting the frequency of the variable frequency motor. The first condenser and the first condensing fan are arranged above the conveying belt, and the second condenser and the second condensing fan are arranged below the conveying belt. The first condenser and the second condenser are arranged in a staggered manner. The hot air output by the first condensing fan passes through the conveying belt, the second condenser, the second condensing fan, the conveying belt, the heat recovery channel of the heat recovery device, the water cooler, the evaporator and the heat output end of the heat recovery device in sequence and then returns to the input end of the first condenser. The conveying belt is installed on a conveying frame, and the first condensing fan, the second condenser and the second condensing fan are installed on the conveying frame. The compressor, the first condenser, the expansion valve, the heat recovery device and the evaporator are arranged in a heat preservation box. The heat preservation box is arranged on the top of the conveying frame and above the conveying belt. The conveying belt is provided with a first heating area and a second heating area. A partition plate is arranged between the first heating area and the second heating area. The first condensing fan is aligned with the first heating area, and the second condensing fan is aligned with the second heating area. The partition plate of the heating area can prevent heat leakage and temperature cross between the two heating areas.

[0013] The utility model principle: set up parallel first condenser and second condenser, the refrigerant of compressor output supplies two condensers simultaneously, forms two heating sources, and air is heated to the hot gas of specified temperature after first condenser and carries out first heat exchange to material, and the temperature of hot gas after heat exchange drops, and heats to specified temperature after second condenser, and carries out second heat exchange to material again, guarantees the sustained fast high temperature drying to material, especially reaches the purpose that the raw rubber fast drying ripening to rubber products, the circulating air path of heat pump system is closed type, and the harmful gas produced by rubber products cannot spread outward, and it is more environmental protection, and chain net conveying system cooperates heat pump system, realizes the continuous drying of rubber products, and production efficiency is higher.

Claims

1. A heat pump drying line comprising a heat pump system and a chain mesh conveyor system, characterized in that: The water cooling system comprises a water cooler, a cooling tower, a water pump and an electric proportional regulating valve, an output end of the cooling tower is connected with an input end of the water cooler through the water pump and the electric proportional regulating valve, and an output end of the water cooler is connected with an input end of the cooling tower; the heat pump system comprises a compressor, a first condenser, a first condensing fan matched with the first condenser, a second condenser, a second condensing fan matched with the second condenser, an expansion valve, a heat recovery device and an evaporator, the first condenser and the second condenser are arranged in parallel, and the heat recovery device comprises a heat recovery channel and a heat output channel; the chain mesh conveying system comprises a conveying belt and a variable frequency motor driving the conveying belt; the first condenser and the first condensing fan are arranged above the conveying belt, the second condenser and the second condensing fan are arranged below the conveying belt, and hot air output by the first condenser through the first condensing fan returns to an input end of the first condenser after sequentially passing through the conveying belt, the second condenser, the second condensing fan, the conveying belt, the heat recovery channel of the heat recovery device, the water cooler, the evaporator and a heat output end of the heat recovery device.

2. A heat pump drying line according to claim 1, characterized in that The first condenser and the second condenser are arranged in a staggered manner.

3. A heat pump drying line according to claim 1, characterized in that: The conveying belt is mounted on a conveying frame, and the first condensing fan, the second condenser and the second condensing fan are mounted on the conveying frame; the compressor, the first condenser, the expansion valve, the heat recovery device and the evaporator are arranged in a heat preservation box, the heat preservation box is arranged on the top of the conveying frame and above the conveying belt.

4. A heat pump drying line according to claim 1, characterized in that: The conveying belt is provided with a first heating area and a second heating area, a partition plate is arranged between the first heating area and the second heating area, the first condensing fan is aligned with the first heating area, and the second condensing fan is aligned with the second heating area.

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