CN203157350U - Drying box thermal circulation system for printer - Google Patents

Abstract

The utility model discloses a heat circulation system of a drying box for a printing machine, which comprises a drying box, and an exhaust port of the drying box is connected to a heat exchange cavity through a pipeline. One end of the heat exchange cavity is provided with an exhaust port, and the inside of the heat exchange cavity A heat exchanger is provided, the air inlet of the heat exchanger communicates with the outside atmosphere, and the blowing port of the heat exchanger is connected with the drying box through a blower and a hot blast stove in turn. The utility model can greatly reduce the loss of heat energy in the drying process of the printed matter, improve the energy utilization rate, and reduce the production cost of the enterprise. At the same time, the utility model has a simple structure and is convenient for maintenance.

Description

Printing machine drying oven thermal cycle system

technical field

The utility model belongs to the technical field of printing machinery and relates to a heat circulation system of a drying box of a printing machine.

Background technique

In the field of printing technology, some printed matter needs to be dried after printing. At present, the drying of printed matter is mainly completed by hot air drying oven. The hot air drying equipment generally consumes a lot of energy. Under normal circumstances, the energy consumption of hot air drying accounts for more than 80% of the energy consumption of the entire printing process. A large amount of heat energy is stored in the exhaust gas discharged during the drying process. This part of heat energy is directly discharged into the atmosphere and is wasted, causing certain economic losses to the enterprise loss. How to recycle the heat energy in the exhaust gas has become an urgent problem to be solved.

Contents of the invention

The main purpose of the utility model is to provide a heat circulation system of a drying box of a printing machine, which can solve the problem of wasteful loss of heat energy in the exhaust gas discharged during the hot air drying process of existing printed matter.

In order to achieve the purpose of the invention, the technical solution adopted by the utility model is a thermal cycle system of a printing machine drying box, which includes a drying box, and the exhaust port of the drying box is connected to the heat exchange chamber through a pipeline, and the heat exchange chamber One end is provided with an exhaust port, and a heat exchanger is provided inside the heat exchange chamber, the air inlet of the heat exchanger communicates with the outside atmosphere, and the blowing port of the heat exchanger is connected with the drying box through a blower and a hot blast stove in turn.

The utility model is also characterized in that the heat exchanger is a fence-shaped hollow cavity.

Further, the air inlet and the air outlet of the heat exchanger are respectively arranged at two diagonal positions of the heat exchanger.

The beneficial effects of the utility model are:

1) The utility model can greatly reduce the loss of heat energy during the drying process of printed matter, improve the energy utilization rate, and reduce the production cost of the enterprise.

2) The utility model has a simple structure and is convenient for maintenance.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure, 1. drying oven, 2. heat exchange chamber, 3. heat exchanger, 4. blower, 5. hot blast stove.

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The utility model provides a thermal cycle system of a printing machine drying box, as shown in Figure 1, comprising a drying box 1, and the exhaust port of the drying box 1 is connected to a heat exchange chamber 2 through a pipeline, and one end of the heat exchange chamber 2 is provided with a Exhaust port, the inside of the heat exchange chamber 2 is provided with a heat exchanger 3, the air inlet of the heat exchanger 3 communicates with the outside atmosphere, and the blowing port of the heat exchanger 3 is connected with the drying box 1 through the blower 4 and the hot blast stove 5 in turn.

During specific implementation, the high-temperature waste gas discharged from the drying box 1 enters the heat exchange chamber 2 through the pipeline, and after the outside air enters the heat exchanger 3 under the action of the blower 4, the high-temperature waste gas residing in the heat exchange chamber 2 moves slowly through the The outer wall of the heat exchanger 3 preheats the air inside the heat exchanger 3 . In order to increase the heat exchange area and improve heat exchange efficiency, the heat exchanger 3 is preferably made into a fence shape, and a certain distance is reserved between each heat exchange tube, and the air inlet and the exhaust port of the heat exchanger 3 are respectively arranged at Two diagonal positions of heat exchanger 3. The preheated air enters the hot blast stove 5 through the blower 4 for further heating, and the temperature reaches the temperature required for drying. The heated air enters the drying box 1 under the action of the blower 4 to dry the printed matter, and the high-temperature exhaust gas enters through the pipeline. Exchanger 2, and so on.

The basic principles, main features and advantages of the present utility model have been shown and described above. The above-mentioned embodiments and instructions are only the principles of the present utility model. There are various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the claims and their equivalents.

Claims (3)

1. a printing machine drying box thermal cycle system, is characterized in that, comprises drying box (1), the air outlet of drying box (1) is connected with heat exchange cavity (2) by pipeline, and described heat exchange cavity ( One end of 2) is provided with an exhaust port, and a heat exchanger (3) is provided inside the heat exchange chamber (2), the air inlet of the heat exchanger (3) communicates with the outside atmosphere, and the air-beating port of the heat exchanger (3) Connect with drying oven (1) through air blower (4) and hot blast stove (5) successively. 2. A heat circulation system for a drying box of a printing press according to claim 1, characterized in that the heat exchanger (3) is a fence-shaped hollow cavity. 3. The thermal cycle system of drying box for printing presses according to claim 2, characterized in that, the air inlet and the exhaust port of the heat exchanger (3) are respectively arranged on two pairs of heat exchangers (3). corner position.

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