A constant temperature control filter for dry film coating

Abstract

The utility model relates to the technical field of glue solution processing, concretely to a constant temperature control filter for dry film coating, including filter, and the heat exchange coil that sets up in the filter inside, the filter outside is provided with temperature controller for heat exchange coil connection, both ends of heat exchange coil all are through pipeline with temperature controller intercommunication. The utility model, through increasing heat exchange coil, temperature controller in the filter bag steel mesh outside, control external heat medium control system, realize to the small -range adjustment of glue solution in filter, detect coil heat medium temperature through electronic thermometer, simultaneously use flowmeter to monitor heat medium flow, and the information that collects is returned to temperature controller to control the opening of heating or cold water proportional valve of electric heat exchanger, controls the in -flow of cooling water, adjusts through filter heat medium temperature, uses PID control heat medium temperature, flow rate, realizes glue solution temperature constant temperature at filter outlet.

Description

Technical Field

[0001] This utility model relates to the field of adhesive processing technology, specifically to a constant temperature control filter for dry film coating. Background Technology

[0002] Three-bag filters are currently the main equipment used for temperature control of raw adhesive solutions in dry film coating processes. They achieve the effect of temperature control of the coating adhesive solution. However, due to their relatively fixed temperature, they cannot make fine adjustments to the temperature according to long-term operation of the equipment and the continuous flow of subsequent adhesive solutions. They cannot achieve constant temperature supply and are prone to temperature superposition during long-term use, resulting in a large temperature difference of the adhesive solution flowing at the filter outlet, which affects the stability of coating.

[0003] Therefore, a constant temperature control filter for dry film coating is proposed to solve the problems mentioned above. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a constant temperature control filter for dry film coating, which can solve the problem that existing equipment does not have constant temperature control.

[0005] To achieve the above objectives, the present invention provides the following technical solution: including a filter and a heat exchange coil disposed inside the filter, a temperature controller for connecting the heat exchange coil is disposed outside the filter, and both ends of the heat exchange coil are connected to the temperature controller through pipes.

[0006] Preferably, the filter has at least three filter bag steel meshes in the middle, an adhesive inlet in the upper half of the outer side of the filter, an adhesive outlet in the lower half of the outer side of the filter, and an air vent in the middle of the lower end of the filter.

[0007] Preferably, the connection point between the adhesive inlet and the filter is located above the heat exchange coil, the connection point between the adhesive outlet and the filter is located below the filter, and the vent is located directly below the heat exchange coil.

[0008] Preferably, a cold water inlet is connected to one side of the temperature controller, and a cold water return is connected to the lower end of the temperature controller.

[0009] Preferably, the temperature controller is further provided with a heat medium outlet and a heat medium inlet on the corresponding side, and the heat medium inlet is connected to the upper end of the heat exchange coil through a pipe.

[0010] Preferably, the heat medium outlet is connected to the lower end of the heat exchange coil via a pipe.

[0011] Preferably, the temperature controller is further provided with a proportional valve for controlling the flow rate of the cold water inlet, an electronic thermometer for detecting the temperature of the heat medium outlet, a flow meter for controlling the heat medium inlet, and an electric heat tracing exchanger.

[0012] Compared with the prior art, the present invention provides a temperature-controlled filter for dry film coating, which has the following advantages: 1. By adding a heat exchange coil and temperature controller to the outside of the filter bag steel mesh, and controlling the external heat exchange medium control system, the adhesive liquid in the filter can be adjusted slightly.

[0013] 2. The temperature of the heat exchange medium in the heat exchange coil is detected by an electronic thermometer, and the flow rate of the heat exchange medium is monitored by a flow meter. The collected information is transmitted back to the temperature controller, thereby controlling the opening degree of the heating or cooling water proportional valve of the electric heat tracing exchanger and controlling the flow rate of cooling water.

[0014] 3. By adjusting the temperature of the heat exchange medium in the filter, and using PID control to control the temperature of the heat exchange medium (the limit temperature is set according to the characteristics of the adhesive) and the flow rate, the temperature of the adhesive at the filter outlet is kept constant. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the present invention. Figure 2 This is a side view sectional structural diagram of the present invention; Figure 3 This is a top view of the structure of this utility model; Figure 4 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 5 This is a schematic diagram of the internal structure of the temperature controller of this utility model.

[0016] In the diagram: 1. Filter; 2. Adhesive inlet; 3. Adhesive outlet; 4. Drain; 5. Heat exchange coil; 6. Filter bag mesh; 7. Temperature controller; 701. Cold water inlet; 702. Cold water reflux. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example:

[0018] Please see Figure 1 - Figure 5A constant temperature control filter for dry film coating in this embodiment includes a filter 1 and a heat exchange coil 5 disposed inside the filter 1. A temperature controller 7 for connecting the heat exchange coil 5 is disposed outside the filter 1. Both the upper and lower ends of the heat exchange coil 5 are connected to the temperature controller 7 through pipes. At least three filter bag steel meshes 6 are provided in the middle of the filter 1, an adhesive inlet 2 is provided in the upper half of the outer side of the filter 1, an adhesive outlet 3 is provided in the lower half of the outer side of the filter 1, and an air vent 4 is provided in the middle of the lower end of the filter 1. The connection between the adhesive inlet 2 and the filter 1 is located above the heat exchange coil 5, the connection between the adhesive outlet 3 and the filter 1 is located below the filter 1, and the vent 4 is located directly below the heat exchange coil 5. A cold water inlet 701 is connected to one side of the temperature controller 7, and a cold water return 702 is connected to the lower end of the temperature controller 7. The corresponding side of the temperature controller 7 is also connected to a heat medium outlet and a heat medium inlet, and the heat medium inlet is connected to the upper end of the heat exchange coil 5 through a pipe, and the heat medium outlet is connected to the lower end of the heat exchange coil 5 through a pipe. The temperature controller 7 is also equipped with a proportional valve for controlling the flow rate of the cold water inlet 701, an electronic thermometer for detecting the temperature of the heat medium outlet, a flow meter for controlling the heat medium inlet, and an electric heat tracing exchanger. First, the instruments used in this application have corresponding installation specifications, which are existing technologies and will not be elaborated here; This application adds a heat exchange device to the existing three-bag filter to achieve fine-tuning of the temperature of the coating adhesive before use, thus achieving a constant temperature supply. The specific principle is as follows: By adding a heat exchange coil 5 and a temperature controller 7 to the outside of the filter bag steel mesh 6, the external heat exchange medium control system is controlled, which enables small-scale adjustment of the adhesive liquid in the filter 1. The temperature of the heat exchange medium in the heat exchange coil 5 is detected by an electronic thermometer, and the flow rate of the heat exchange medium is monitored by a flow meter. The collected information is transmitted back to the temperature controller 7, thereby controlling the opening of the heating or cooling water proportional valve of the electric heat exchanger and controlling the flow rate of cooling water. By adjusting the temperature of the filter heat exchange medium, the PID control is used to control the temperature of the heat exchange medium (the limit temperature is set according to the characteristics of the adhesive liquid) and the flow rate, so as to achieve a constant temperature of the adhesive liquid at the outlet of the filter 1.

[0019] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. As long as they can achieve their beneficial effects, they can be implemented. Therefore, this embodiment will not elaborate on their specific structural composition and working principle.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A temperature-controlled filter for dry film coating, characterized in that: It includes a filter (1) and a heat exchange coil (5) disposed inside the filter (1). A temperature controller (7) for connecting the heat exchange coil (5) is disposed on the outside of the filter (1). Both ends of the heat exchange coil (5) are connected to the temperature controller (7) through pipes.

2. The constant temperature control filter for dry film coating according to claim 1, characterized in that: The filter (1) has at least three filter bag steel meshes (6) in the middle, the upper half of the outer side of the filter (1) has an adhesive inlet (2), the lower half of the outer side of the filter (1) has an adhesive outlet (3), and the middle of the lower end of the filter (1) has an air vent (4).

3. A temperature-controlled filter for dry film coating according to claim 2, characterized in that: The connection between the adhesive inlet (2) and the filter (1) is located above the heat exchange coil (5), the connection between the adhesive outlet (3) and the filter (1) is located below the filter (1), and the vent (4) is located directly below the heat exchange coil (5).

4. A temperature-controlled filter for dry film coating according to claim 1, characterized in that: A cold water inlet (701) is connected to one side of the temperature controller (7), and a cold water return (702) is connected to the lower end of the temperature controller (7).

5. A temperature-controlled filter for dry film coating according to claim 4, characterized in that: The temperature controller (7) is also connected to a heat medium outlet and a heat medium inlet on the corresponding side, and the heat medium inlet is connected to the upper end of the heat exchange coil (5) through a pipe.

6. A temperature-controlled filter for dry film coating according to claim 5, characterized in that: The heat medium outlet is connected to the lower end of the heat exchange coil (5) via a pipe.

7. A temperature-controlled filter for dry film coating according to claim 6, characterized in that: The temperature controller (7) is also equipped with a proportional valve for controlling the flow rate of the cold water inlet (701), an electronic thermometer for detecting the temperature of the heat medium outlet, a flow meter for controlling the heat medium inlet, and an electric heat tracing exchanger.

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