Corrosion-resistant on-line heater

Abstract

The utility model provides a corrosion-resistant online heater. The corrosion-resistant online heater comprises an end cap, a connecting block, a heating pipe and an electric heating wire, the number of the end caps and the number of the connecting blocks are both two, and the number of the heating pipes is multiple. A plurality of through holes are formed in the connecting block; one end of each heating pipe is inserted into the corresponding through hole of one connecting block, and the other end of each heating pipe is inserted into the corresponding through hole of the other connecting block; an electric heating wire is arranged on the periphery of each heating pipe in a surrounding manner; two ends of each heating wire are respectively connected with leads; one end cap sleeves one side, deviating from the heating pipe, of each connecting block; a liquid flowing space is formed in the end cap and used for communicating the heating pipes, and a liquid inlet and a liquid outlet are further formed in the end cap; the liquid inlet / outlet is communicated with the liquid flowing space; the end caps, the connecting blocks and the heating pipes are all made of corrosion-resistant materials. The corrosive liquid heating device is suitable for heating corrosive liquid and is high in heating efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of liquid heaters, especially a kind of corrosion-resistant online heater. BACKGROUND

[0002] In the field of semiconductor, photovoltaic, OLED panel etc., some processes often involve corrosive liquid (chemical solution), and these corrosive liquids need to be heated in the process;The existing corrosion-resistant metal heater is very high in cost.

[0003] Therefore, relevant enterprises urgently need a liquid heater with low cost and good corrosion resistance. SUMMARY

[0004] To overcome the deficiencies in the prior art, the utility model embodiment provides a kind of corrosion-resistant online heater, with excellent corrosion resistance, suitable for the heating of corrosive liquid, and the heating efficiency is higher. To achieve the above technical purpose, the technical scheme adopted by the utility model embodiment is:

[0005] The utility model embodiment provides a kind of corrosion-resistant online heater, including end cap, connecting block, heating pipe, heating wire;

[0006] The end cap and connecting block are both configured as two, and the heating pipe is configured as multiple roots;

[0007] Multiple through holes are provided in the connecting block;One end of each heating pipe is inserted into the corresponding through hole of one connecting block, and the other end is inserted into the corresponding through hole of another connecting block;Electric heating wire is arranged around the outer periphery of each heating pipe;Both ends of each electric heating wire are connected to lead wire respectively;

[0008] One end cap is sleeved on the side of each connecting block away from the heating pipe;Liquid flow space is provided in the end cap for connecting each heating pipe, and liquid inlet and outlet are further provided on the end cap;The liquid inlet and outlet are communicated with the liquid flow space;

[0009] The end cap, connecting block and heating pipe are made of corrosion-resistant material.

[0010] Further, the edge of the connecting block is provided with a step towards the side of the end cap;The end cap is connected to the step of the edge of the connecting block.

[0011] Further, the end cap and the step of the edge of the connecting block are connected by welding.

[0012] Further, the corrosion-resistant material used by the end cap, connecting block and heating pipe is PFA material.

[0013] Further, the liquid flow space in the end cap is conical, and the inner diameter of the liquid flow space gradually decreases from the connecting block to the liquid inlet and outlet direction.

[0014] Further, the liquid inlet and outlet on the end cap is provided with internal threads

[0015] The technical scheme provided by the embodiment of the utility model has the beneficial effects that

[0016] 1) Excellent corrosion resistance, suitable for heating of corrosive liquid.

[0017] 2) The liquid is heated by multiple heating pipes simultaneously, with high heating efficiency.

[0018] 3) The liquid is evenly distributed in each heating pipe.

[0019] 4) The overall cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 The utility model discloses an online heater structure schematic view in the embodiment.

[0021] Figure 2 The utility model discloses a connecting block overhead angle schematic view in the embodiment.

[0022] Figure 3 The utility model discloses a connecting block side view angle schematic view in the embodiment. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantage of the utility model more clear, the utility model is further explained in detail below with the drawings and embodiment. It should be understood that the specific embodiment described here is only used to explain the utility model, and is not used to limit the utility model.

[0024] As shown in Figure 1 , Figure 2 and Figure 3 The utility model discloses an online heater of corrosion resistance, including end cap 1, connecting block 2, heating pipe 3, heating wire 4;

[0025] The end cap 1 and connecting block 2 are configured as two, and the heating pipe 3 is configured as multiple.

[0026] A plurality of through holes 201 are arranged in the connecting block 2, one end of each heating pipe 3 is inserted into the corresponding through hole 201 of one connecting block 2, and the other end is inserted into the corresponding through hole 201 of another connecting block 2, and the outer periphery of each heating pipe 3 is surrounded by the heating wire 4, and the two ends of each heating wire 4 are connected with the lead 5 respectively.

[0027] An end cap 1 is connected to each connecting block 2 on the side away from the heating pipe 3; the end cap 1 is provided with a liquid flow space 101 for connecting the heating pipes 3, and is further provided with a liquid inlet and outlet 102; the liquid inlet and outlet 102 communicates with the liquid flow space 101;

[0028] The end cap 1, the connecting block 2 and the heating pipe 3 are made of corrosion-resistant materials.

[0029] In use, the liquid inlet and outlet 102 on one end cap of the inline heater serves as an inlet, and the liquid inlet and outlet 102 on the other end cap serves as an outlet; the inlet and the outlet are connected by a conveying pipe respectively; the liquid to be heated flows into the liquid flow space 101 in the end cap 1 on one end of the inline heater from the inlet, and then enters each heating pipe 3; each heating pipe 3 is heated by the electric heating wire 4 on the outer periphery, and transfers heat to the liquid flowing through the heating pipe 3, thereby increasing the temperature of the liquid; then the heated liquid flows out of each heating pipe 3, and is collected in the liquid flow space 101 in the end cap on the other end of the inline heater, and then flows to the conveying pipe from the outlet; the heating efficiency can be significantly improved by heating multiple heating pipes 3 simultaneously, and the end caps on both ends of the inline heater provide internal flow space for the liquid to branch and collect; the end cap 1, the connecting block 2 and the heating pipe 3 all have excellent corrosion resistance, and can be used for heating corrosive liquids.

[0030] In some embodiments, the end cap 1 and the connecting block 2 are substantially circular.

[0031] Specifically, the edge of the connecting block 2 is provided with a step 202 towards the side of the end cap 1; the end cap 1 is connected to the step 202 of the edge of the connecting block 2; which can improve the connection strength of the end cap 1 and the connecting block 2.

[0032] Specifically, the end cap 1 and the step 202 of the edge of the connecting block 2 are connected by welding; for example, a fusion welding method can be used for connection, which can effectively prevent liquid leakage.

[0033] Specifically, the end cap 1, the connecting block 2 and the heating pipe 3 are made of PFA material; which has excellent corrosion resistance.

[0034] More preferably, the electric heating wire 4 is wrapped with an insulating sleeve, which can prevent the electric heating wire 4 from being damaged by collision.

[0035] More preferably, the liquid flow space 101 in the end cap 1 is conical, and the inner diameter of the liquid flow space 101 gradually decreases from the connecting block 2 to the liquid inlet and outlet 102; for the liquid entering the end cap, the conical liquid flow space 101 is conducive to the uniform flow of the liquid to each heating pipe 3, and for the liquid flowing out of the heating pipe 3, the conical liquid flow space 101 is conducive to the collection of the liquid and then flowing out of the outlet of the end cap.

[0036] More preferably, the liquid inlet and outlet 102 on the end cap 1 is provided with an internal thread for facilitating threaded connection with the delivery tube.

[0037] Finally, it should be noted that the above detailed description is merely intended to illustrate the technical solutions of the present application and not to limit the same, and although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all of the same should be included in the scope of the claims of the present application.

Claims

1. A corrosion resistant inline heater characterized by, The corrosion-resistant online heater comprises an end cap (1), a connecting block (2), a heating pipe (3) and an electric heating wire (4). The end cap (1) and the connecting block (2) are both configured as two, and the heating pipe (3) is configured as multiple. The connecting block (2) is provided with multiple through holes (201), one end of each heating pipe (3) is inserted into a corresponding through hole (201) of one connecting block (2), and the other end is inserted into a corresponding through hole (201) of another connecting block (2); the electric heating wire (4) is arranged around the outer periphery of each heating pipe (3); and both ends of each electric heating wire (4) are connected with a lead wire (5). An end cap (1) is sleeved on the side of each connecting block (2) away from the heating pipe (3); the end cap (1) is provided with a liquid flowing space (101) inside for connecting the heating pipes (3), and is further provided with a liquid inlet and outlet (102); the liquid inlet and outlet (102) is communicated with the liquid flowing space (101). The end cap (1), the connecting block (2) and the heating pipe (3) are all made of corrosion-resistant material.

2. The corrosion-resistant online heater according to claim 1, wherein The edge of the connecting block (2) is provided with a step (202) on the side facing the end cap (1); and the end cap (1) is connected at the step (202) of the edge of the connecting block (2).

3. The corrosion-resistant online heater according to claim 2, wherein The end cap (1) is connected with the step (202) of the edge of the connecting block (2) by welding.

4. The corrosion-resistant online heater according to claim 1, wherein The corrosion-resistant material used by the end cap (1), the connecting block (2) and the heating pipe (3) is PFA material.

5. The corrosion-resistant online heater according to claim 1, wherein The liquid flowing space (101) inside the end cap (1) is conical, and the inner diameter of the liquid flowing space (101) gradually decreases from the connecting block (2) to the liquid inlet and outlet (102).

6. The corrosion-resistant online heater according to claim 1, wherein The liquid inlet and outlet (102) on the end cap (1) is provided with internal threads.

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