Heater with external filtering device

Abstract

The utility model discloses a heater with an external filtering device, which relates to the filtering field of oil heaters, and comprises a heating tank, supporting legs are welded below the periphery of the heating tank, the top of the heating tank is connected with an oil outlet, and the bottom of the heating tank is connected with an oil inlet. The heating tank is provided with an oil outlet and an oil inlet, an inner cavity of the oil outlet and the oil inlet is communicated with an inner cavity of the heating tank, the output end of the oil inlet is connected with a filter pipe, and filter mechanisms are distributed outside and inside the filter pipe and used for filtering impurities contained in heat conduction oil; the output end of the filter pipe is connected with a hot oil pump through a pipeline, and the middle section of the filter pipe is of a C-shaped structure rotating by 90 degrees. By arranging the filtering mechanism, impurities contained in flowing heat conduction oil can be filtered, and the filtered impurities can enter the vertical pipe and cannot participate in circulation of the heat conduction oil again along with flowing of the heat conduction oil.

Description

Technical Field

[0001] The utility model relates to the field of filtration of oil heaters, and specifically relates to a heater with an external filtration device. Background Technique

[0002] An oil heater heats the heat-conducting oil by heating. Then, the flowing heat-conducting oil enters the heat-using equipment for heat exchange. After its temperature drops, it returns to the heating tank through circulation and is heated again.

[0003] It is an inevitable law that the heat-conducting oil deteriorates continuously during use. The reasons for deterioration are mainly three factors: high temperature, oxidation, and impurities. Therefore, in order to extend the service life of the device, it is very necessary to filter the heat-conducting oil. Summary of the Invention

[0004] The purpose of the utility model is to provide a heater with an external filtration device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A heater with an external filtration device includes a heating tank with legs welded to the lower part of the outer periphery. An oil outlet is connected to the top of the heating tank, and an oil inlet is connected to the bottom of the heating tank. The inner cavities of the oil outlet and the oil inlet are connected to the inner cavity of the heating tank. The output end of the oil inlet is connected to a filter pipe. Filtering mechanisms are distributed outside and inside the filter pipe. The filtering mechanisms are used to filter the impurities contained in the heat-conducting oil.

[0006] The output end of the filter pipe is connected to a hot oil pump through a pipeline. The middle section of the filter pipe is in a "C" shape rotated 90 degrees. The outer wall of the filter pipe is fixedly connected to the bottom end of the outer periphery of the heating tank through a fixing frame. A liquid inlet check valve is installed at a position on the outer wall of the filter pipe close to the feed port.

[0007] As a further scheme of the utility model: The filtering mechanism includes a vertical pipe connected to the lowest point of the outer wall of the filter pipe. The inner cavity of the vertical pipe is connected to the inner cavity of the filter pipe.

[0008] A filter screen for filtering the heat-conducting oil entering the inner cavity of the heating tank is installed on the inner wall of the filter pipe. A fixing frame is fixedly installed on the outer periphery of the filter screen. The fixing frame is fixedly connected to the inner wall of the filter pipe.

[0009] As a further scheme of the utility model: The filtering mechanism further includes a connection head threadedly connected to the lower part of the inner wall of the vertical pipe. A connection end plate is integrally formed at the bottom end of the connection head. A handle is integrally formed at the bottom end of the connection end plate. A scoop net is fixedly installed at the top end of the connection end plate within the inner circumference of the connection head.

[0010] As a further solution of the utility model: the top of the scoop net is in an outward V-shaped structure.

[0011] As a further solution of the utility model: one side of the filter net close to the vertical pipe has an inclined surface, the other side of the filter net is a flat surface, and the thickness of the filter net gradually becomes thinner from top to bottom.

[0012] As a further solution of the utility model: a guiding surface inclined towards the vertical pipe is formed below the inner circumference of the fixed frame, and one end of the guiding surface close to the vertical pipe is the low point.

[0013] As a further solution of the utility model: an electric heater is installed at the open end of the heating tank, and the electric heating pipe part of the electric heater is located in the inner cavity of the heating tank.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By setting up the filtering mechanism, the impurities contained in the flowing heat-conducting oil can be filtered, and the filtered impurities will enter the vertical pipe and will not participate in the circulation of the heat-conducting oil again with the flow of the heat-conducting oil. Description of the Drawings

[0016] Figure 1 is the structural schematic diagram of the utility model;

[0017] Figure 2 is the internal mechanism schematic diagram of the filter pipe of the utility model;

[0018] Figure 3 is the Figure 2 partial enlarged view at A of the utility model;

[0019] Figure 4 is the installation schematic diagram of the scoop net of the utility model;

[0020] Figure 5 is the partial enlarged view at B of the utility model.

[0021] In the figure: 1. Heating tank; 2. Oil outlet; 3. Oil inlet; 4. Electric heater; 5. Filter pipe; 6. Inlet check valve; 7. Fixed frame; 8. Vertical pipe; 9. Leg; 10. Fixed frame; 11. Filter net; 12. Inclined surface; 13. Guiding surface; 14. Scoop net; 15. Connecting end plate; 16. Connector; 17. Handle. Detailed Embodiment

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 to 5 , in the embodiment of the present invention, a heater with an external filtering device includes a heating tank 1 welded with legs 9 below the outer periphery. An oil outlet 2 is connected to the top of the heating tank 1, and an oil inlet 3 is connected to the bottom of the heating tank 1. The inner cavities of the oil outlet 2 and the oil inlet 3 are communicated with the inner cavity of the heating tank 1. The output end of the oil inlet 3 is connected to a filter pipe 5. Filtering mechanisms are distributed on the outside and inside of the filter pipe 5 for filtering impurities contained in the heat-conducting oil. The output end of the filter pipe 5 is connected to a hot oil pump through a pipeline, and the middle section of the filter pipe 5 is in a "C" shape rotated by 90 degrees. The outer wall of the filter pipe 5 is fixedly connected to the bottom end of the outer periphery of the heating tank 1 through a fixing bracket 7. A liquid inlet check valve 6 is installed at a position on the outer wall of the filter pipe 5 close to the feed port.

[0024] In this embodiment: When using this device, start the hot oil pump, and the heat-conducting oil is pumped into the heating tank 1 for heating. As the heat-conducting oil is pumped into the heating tank 1, and the heating tank 1 contains heat-conducting oil equal to its volume. As new heat-conducting oil is pumped in, the original heat-conducting oil in the heating tank 1 is discharged through the oil outlet 2;

[0025] After the heat-conducting oil passes through the heat-using equipment, it is pumped into the filter pipe 5 again through the circulation pipeline by the hot oil pump. After the heat-conducting oil passes through the liquid inlet check valve 6, backflow will not occur. When the heat-conducting oil flows through the filter pipe 5, it is filtered by the filtering mechanism.

[0026] Please pay special attention to Figure 3 、 Figure 4 And Figure 5 , the filtering mechanism includes a vertical pipe 8 connected to the lowest point of the outer wall of the filter pipe 5. The inner cavity of the vertical pipe 8 is communicated with the inner cavity of the filter pipe 5. A filter screen 11 for filtering the heat-conducting oil entering the inner cavity of the heating tank 1 is installed on the inner wall of the filter pipe 5. A fixing frame 10 is fixedly installed on the outer periphery of the filter screen 11, and the fixing frame 10 is fixedly connected to the inner wall of the filter pipe 5. The filtering mechanism further includes a connection head 16 threadedly connected to the lower part of the inner wall of the vertical pipe 8. A connection end plate 15 is integrally formed at the bottom end of the connection head 16. A handle 17 is integrally formed at the bottom end of the connection end plate 15. A scoop net 14 is fixedly installed at the top end of the connection end plate 15 inside the inner circumference of the connection head 16.

[0027] In this embodiment: During the process of the heat-conducting oil flowing in the filter tube 5, it passes through the filter net 11. The filter net 11 intercepts the condensates or impurities contained in the heat-conducting oil. The intercepted substances enter the vertical tube 8 after precipitation and enter the scoop net 14.

[0028] When discharging impurities regularly, first close the valve installed outside the oil inlet 3, and then hold the handle 17 by hand. The handle 17 drives the connecting end plate 15 to rotate. The connecting end plate 15 drives the connector 16 to loosen the internal thread of the vertical tube 8, and then the connecting end plate 15 can be removed. At this time, the impurities located in the scoop net 14 can be discharged.

[0029] Please refer with emphasis to Figure 4 , the top of the scoop net 14 is in an outward flared structure.

[0030] In this embodiment: This design facilitates the impurities to enter the scoop net 14 more easily.

[0031] Please refer with emphasis to Figure 4 , one side of the filter net 11 close to the vertical tube 8 has an inclined surface 12, the other side of the filter net 11 is a flat surface, and the thickness of the filter net 11 gradually becomes thinner from top to bottom. A guiding surface 13 inclined towards the vertical tube 8 is formed below the inner circumference of the fixed frame 10, and the end of the guiding surface 13 close to the vertical tube 8 is the low point.

[0032] In this embodiment: The inclined surface 12 cooperates with the guiding surface 13 to guide the impurities into the interior of the vertical tube 8.

[0033] Please refer with emphasis to Figure 1 , an electric heater 4 is installed at the open end of the heating tank 1, and the electric heating tube part of the electric heater 4 is located in the inner cavity of the heating tank 1.

[0034] In this embodiment: After the electric heater 4 is powered on, it generates heat, thereby heating the heat-conducting oil located in the heating tank 1.

[0035] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A heater with an external filtering device, comprising a heating tank (1) with legs (9) welded to the lower part of its outer periphery, an oil outlet (2) connected to the top of the heating tank (1), an oil inlet (3) connected to the bottom of the heating tank (1), the inner cavities of the oil outlet (2) and the oil inlet (3) being in communication with the inner cavity of the heating tank (1), characterized in that, The output end of the oil inlet (3) is connected to a filter pipe (5), and filter mechanisms are distributed on the outer and inner parts of the filter pipe (5), and the filter mechanisms are used to filter impurities contained in the heat-conducting oil; The output end of the filter pipe (5) is connected to a hot oil pump through a pipeline, and the middle section of the filter pipe (5) is in a "C" shape structure rotated by 90 degrees. The outer wall of the filter pipe (5) is fixedly connected to the outer peripheral bottom end of the heating tank (1) through a fixing frame (7), and a liquid inlet check valve (6) is installed at a position on the outer wall of the filter pipe (5) close to the feed port.

2. The heater with an external filtering device according to claim 1, characterized in that, The filter mechanism includes a vertical pipe (8) connected to the lowest point of the outer wall of the filter pipe (5), and the inner cavity of the vertical pipe (8) is communicated with the inner cavity of the filter pipe (5); A filter net (11) for filtering the heat-conducting oil entering the inner cavity of the heating tank (1) is installed on the inner wall of the filter pipe (5). A fixing frame (10) is fixedly installed on the outer periphery of the filter net (11), and the fixing frame (10) is fixedly connected to the inner wall of the filter pipe (5).

3. The heater with an external filtering device according to claim 2, wherein The filter mechanism further includes a connection head (16) threadedly connected to the lower part of the inner wall of the vertical pipe (8). A connection end plate (15) is integrally formed at the bottom end of the connection head (16), a handle (17) is integrally formed at the bottom end of the connection end plate (15), and a scoop net (14) is fixedly installed at the top end of the connection end plate (15) inside the inner circumference of the connection head (16).

4. The heater with an external filtration device according to claim 3, wherein The top of the scoop net (14) is in an outwardly flared shape structure.

5. The heater with an external filtering device according to claim 4, wherein, One side of the filter net (11) close to the vertical pipe (8) has an inclined surface (12), the other side of the filter net (11) is a flat surface, and the thickness of the filter net (11) gradually becomes thinner from top to bottom.

6. The heater with an external filtering device according to claim 5, characterized in that, A guiding surface (13) inclined towards the vertical pipe (8) is formed at the lower part of the inner circumference of the fixing frame (10), and the end of the guiding surface (13) close to the vertical pipe (8) is the lowest point.

7. The heater with an external filtering device according to claim 1, wherein An electric heater (4) is installed at the opening end of the heating tank (1), and the electric heating pipe part of the electric heater (4) is located inside the inner cavity of the heating tank (1).

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