Heat exchanger

Abstract

The utility model discloses a heat exchanger which comprises a machine shell, a combustion chamber arranged in the machine shell and a plurality of coil pipes which are arranged in the machine shell, penetrate through a cavity of the combustion chamber and are communicated in sequence, one end of each coil pipe is connected with a medium inlet, and the other end of each coil pipe is connected with a medium outlet. The heat exchanger can assist in providing corresponding required heat exchange media for the potato chip production line and improving the production efficiency of the production line, namely combustible gas is combusted to serve as a heat source to be in contact with the coil pipe with high thermal conductivity, then heat energy is firstly transmitted to the coil pipe from the combustible gas, the coil pipe is in contact with media in the coil pipe, and the heat exchange efficiency of the potato chip production line is improved. And finally, the heat energy is transferred to the medium to heat the medium in the coil pipe, and then the medium is conveyed into corresponding corollary equipment.

Description

Technical Field

[0001] The utility model belongs to the field of heat exchangers. Background Art

[0002] Potato chips are made by slicing potatoes and then frying them. During the processing of fried potato chips, the preparation process includes material selection, cleaning, peeling, trimming, slicing, rinsing, bleaching, drying, frying, flavoring, inspection, weighing, and packaging. Frying is a process of frying the dried slices with high-temperature oil. And blanching potatoes is also an important process, that is, heating potatoes in boiling water or steam for a period of time. Thus, whether it is the frying or blanching process, it requires high-temperature oil and hot water to provide a timely medium source.

[0003] Based on this, for the automated production line supporting potato chips, there is an urgent need to adapt a heat exchanger that provides the required heat medium for it. Summary of the Utility Model

[0004] Purpose of the Utility Model: The technical problem to be solved by the utility model is to provide a heat exchanger that can heat the medium to supply the supporting production line equipment.

[0005] Technical Solution: The heat exchanger of the utility model includes a machine shell, a combustion chamber arranged inside the machine shell, and a plurality of coils arranged inside the machine shell and passing through the cavity of the combustion chamber and connected in sequence. One end of the coil is connected to the water inlet, and the other end is connected to the water outlet.

[0006] Furthermore, the coils of the heat exchanger are evenly distributed along the circumference of the combustion chamber.

[0007] Furthermore, the machine shell of the heat exchanger is provided with a blower for supplying air towards the combustion chamber and a pipeline for supplying combustible gas. An electromagnetic valve is arranged on the pipeline.

[0008] Furthermore, the gas outlet port of the pipeline of the heat exchanger is integrated at the gas outlet port of the blower.

[0009] Furthermore, the top of the combustion chamber of the heat exchanger is provided with an exhaust port. A exhaust pipe passing through the outer shell is connected to the exhaust port. A rotating baffle is arranged inside the exhaust pipe to cut off the gas intake of the exhaust pipe.

[0010] Furthermore, a temperature sensor is also arranged at the exhaust port of the heat exchanger.

[0011] Furthermore, a burner in the shape of a square box with flame holes is arranged inside the combustion chamber of the heat exchanger. Flame is generated by an igniter through the flame holes to burn the combustible gas to generate heat.

[0012] Furthermore, the heat exchanger further includes a PLC control system for regulating the entire system.

[0013] Furthermore, the heat exchanger further includes a support frame for supporting the casing.

[0014] Beneficial effects: Compared with the prior art, the advantages of the present utility model are as follows: The heat exchanger can provide hot water for the blanching process and can also provide hot oil for the frying process as needed. That is, by burning combustible gas as a heat source, it contacts with the coiled pipes with high thermal conductivity. Then, the heat energy is first transferred from the combustible gas to the coiled pipes. The coiled pipes contact with the medium inside them, and finally the heat energy is transferred to the medium, heating the medium inside the coiled pipes and then transporting it to the corresponding required equipment. Description of the Drawings

[0015] Figure 1 is a three-dimensional view of the heat exchanger of the present utility model;

[0016] Figure 2 is a three-dimensional line view of the heat exchanger of the present utility model;

[0017] Figure 3 is a schematic cross-sectional view (horizontal section) of the internal structure of the heat exchanger of the present utility model. Detailed Embodiment

[0018] The technical solutions of the present utility model will be further described in detail below with reference to the drawings.

[0019] As Figure 1 and Figure 2 shown, the heat exchanger of the present utility model includes a support frame 9, a casing 1 provided on the support frame 9, and a PLC control system 8 provided on the support frame 9 through a connecting plate. The automatic operation of the heat exchanger is realized through the PLC control system 8.

[0020] Among them, as Figure 3 shown, a combustion chamber 2 and a number of sequentially connected coiled pipes 3 are provided inside the casing 1. The coiled pipes 3 penetrate through the combustion chamber 2 and are uniformly arranged around the combustion chamber 2 to enable sufficient heat transfer to the coiled pipes 3. A number of sequentially connected coiled pipes 3 are connected to each other through a bent pipe provided on the combustion chamber 2. One end of the coiled pipe 3 is connected to the medium inlet, and the other end is connected to the medium outlet, so as to sufficiently heat the incoming medium.

[0021] A blower 4 for supplying air and a pipeline 5 for supplying combustible gas are connected to the combustion chamber 2. The outlet port of the pipeline 5 is integrated with the outlet port of the blower 4. And a burner is provided at the inlet ends of the blower 4 and the pipeline 5 in the combustion chamber 3. The burner is in the shape of a square box and has flame holes. Flame is generated by an igniter through the flame holes, and then the combustible gas is burned to generate heat. An electromagnetic valve is provided on the pipeline 5, and the switches of the blower 4 and the electromagnetic valve are both controlled by a PLC control system 8.

[0022] To discharge the burned gas, an exhaust port is provided at the top of the combustion chamber 2. An exhaust pipe 6 passing through the housing is provided at the exhaust port. And to further restrict the entry of gas, a rotating baffle 7 is provided on the exhaust pipe 6 to block the intake of the exhaust pipe. That is, when exhaust is not required, the rotating baffle is in a horizontal state to close the exhaust pipe 6. When exhaust is required, the angle of the rotating baffle 7 is adjusted by the PLC control system 8 for adaptive discharge. The rotating baffle 7 includes a rotating shaft controlled by the PLC control system 8 and a circular plate provided on the rotating shaft and fitting with the exhaust pipe, and the rotating shaft spans across the exhaust pipe 6.

[0023] In addition to the above, the PLC control system 8 of the heat exchanger of the present utility model also controls the inlet and outlet water of the coil pipe 3 to achieve automated operation in a supporting manner.

Claims

1. A heat exchanger, characterized in that, The heat exchanger includes a housing (1), a combustion chamber (2) provided inside the housing (1), and a number of coiled pipes (3) arranged in sequence and connected in series, which are located inside the housing (1) and penetrate the cavity of the combustion chamber (2). One end of the coiled pipe (3) is connected to a medium inlet, and the other end is connected to a medium outlet. A blower (4) for supplying air towards the combustion chamber (2) and a pipe (5) for supplying combustible gas are provided on the housing (1). An electromagnetic valve is provided on the pipe (5). An exhaust port is provided at the top of the combustion chamber (2), and an exhaust pipe (6) penetrating the outer shell is connected to the exhaust port. A rotating baffle (7) is provided inside the exhaust pipe (6) to block the intake gas of the exhaust pipe (6). A burner in the shape of a square box with flame holes is further provided inside the combustion chamber (2), and a flame is generated by an igniter through the flame holes to burn the combustible gas to generate heat.

2. The heat exchanger according to claim 1, characterized in that The coiled pipes (3) are evenly distributed along the circumference of the combustion chamber.

3. The heat exchanger according to claim 1, characterized in that, The gas outlet end of the pipe (5) is integrated with the gas outlet end of the blower (4).

4. The heat exchanger according to claim 1, characterized in that A temperature sensor is further provided at the exhaust port.

5. The heat exchanger according to claim 1, wherein The heat exchanger further includes a PLC control system (8) for regulating the entire system.

6. The heat exchanger according to claim 1, wherein, The heat exchanger further includes a support frame (9) for supporting the housing (1).

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