Circulating type electric heater efficient in heat exchange

Abstract

The utility model relates to the technical field of electric heaters, in particular to a circulating electric heater with high heat exchange efficiency, which comprises a heating cylinder, and a first partition plate and a second partition plate which are used for dividing the heating cylinder into a first heating chamber, a second heating chamber and a third heating chamber are arranged in the heating cylinder. A first fluid channel enabling the first heating chamber to communicate with the second heating chamber is formed in one end of the first partition plate in a penetrating mode, a second fluid channel enabling the second heating chamber to communicate with the third heating chamber is formed in the end, away from the first fluid channel, of the second partition plate in a penetrating mode, and an electric heating mechanism is arranged in the heating cylinder. Through the arrangement of the first partition plate and the second partition plate, the inner cavity of the heating cylinder can be divided into the first heating chamber, the second heating chamber and the third heating chamber, the flowing distance of fluid in the heating cylinder is increased, and the heat exchange efficiency between the fluid and the heating pipe is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric heaters, in particular to a circulating electric heater with high heat exchange efficiency. Background Art

[0002] Electric heaters are electric heating equipment used to heat, insulate and heat flowing liquid and gaseous media. When the heating medium passes through the heating chamber of the electric heater under pressure, the principle of fluid thermodynamics is used to evenly carry away the huge heat generated by the electric heating element during operation, so that the temperature of the heated medium meets the user's process requirements.

[0003] The existing electric heater fluid flows in the heating tube at a relatively fast speed, which is not conducive to the heating tube fully heating the fluid. The heat exchange efficiency between the fluid and the heat is low, so that the temperature of the discharged fluid does not meet the standard. Utility Model Content

[0004] The purpose of the utility model is to provide a circulating electric heater with high heat exchange efficiency in view of the defects of the prior art, so as to solve the problems that the fluid in the existing electric heater flows too fast in the heating tube, which is not conducive to the heating tube to fully heat the fluid, and the heat exchange efficiency between the fluid and the heat is low, so that the temperature of the discharged fluid does not meet the standard.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A circulating electric heater with high heat exchange efficiency comprises a heating tube, wherein a first partition and a second partition are provided inside the heating tube for dividing the heating tube into a first heating chamber, a second heating chamber and a third heating chamber, wherein a first fluid channel is penetrated through one end of the first partition so as to connect the first heating chamber with the second heating chamber, and a second fluid channel is penetrated through one end of the second partition away from the first fluid channel so as to connect the second heating chamber with the third heating chamber, and an electric heating mechanism is provided inside the heating tube.

[0007] As a preferred technical solution of the utility model, the electric heating mechanism includes a wiring head, a fastening seat is provided at the end of the wiring head, and a heating tube is provided at the end of the fastening seat which is plugged into the first heating chamber, the second heating chamber and the third heating chamber.

[0008] As the fluid passes through the first heating chamber, the second heating chamber and the third heating chamber in sequence, the temperature will become higher and higher, so as to avoid uneven surface temperature of each heating tube and affect the service life of the electric heater, the number of heating tubes in the third heating chamber is less than the number of heating tubes in the second heating chamber, and the number of heating tubes in the second heating chamber is less than the number of heating tubes in the first heating chamber.

[0009] As a preferred technical solution of the utility model, a liquid inlet pipe connected to the first heating chamber is provided on the top of the heating cylinder, and the liquid inlet pipe is arranged at an end away from the first fluid channel.

[0010] As a preferred technical solution of the utility model, a liquid outlet pipe connected to the third heating chamber is provided at the bottom of the heating cylinder, and the liquid outlet pipe is arranged at an end away from the second fluid channel.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model can divide the inner cavity of the heating tube into a first heating chamber, a second heating chamber and a third heating chamber by setting the first partition and the second partition, thereby improving the flow distance and heat exchange efficiency of the fluid in the heating tube, and further improving the flow distance of the fluid in the heating tube by setting the first fluid channel away from the liquid inlet pipe and the second fluid channel away from the liquid outlet pipe, thereby increasing the heat exchange efficiency between the fluid and the heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the heating tube of the utility model;

[0015] Figure 3 It is a structural schematic diagram of the electric heating mechanism of the utility model;

[0016] In the figure: 1. Heating tube; 101. First heating chamber; 102. Second heating chamber; 103. Third heating chamber; 104. First partition; 105. First fluid channel; 106. Second partition; 107. Second fluid channel; 2. Liquid inlet pipe; 3. Liquid outlet pipe; 4. Terminal block; 5. Fastening seat; 6. Heating tube. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0018] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0019] Example

[0020] Combination Figure 1-2 As shown, a circulating electric heater with high heat exchange efficiency includes a heating tube 1, wherein the heating tube 1 is provided with a first partition 104 and a second partition 106 for dividing the inner cavity of the heating tube 1 into a first heating chamber 101, a second heating chamber 102 and a third heating chamber 103, and both sides of the first partition 104 and the second partition 106 are fixedly connected to the inner side wall of the heating tube 1. By setting the first partition 104 and the second partition 106, the inner cavity of the heating tube 1 can be divided into the first heating chamber 101, the second heating chamber 102 and the third heating chamber 103, thereby improving the flow distance of the fluid in the heating tube 1 and the heat exchange efficiency The first partition plate 104 has one end through which a first fluid channel 105 is opened to connect the first heating chamber 101 with the second heating chamber 102, and the second partition plate 106 has one end away from the first fluid channel 105 through which a second fluid channel 107 is opened to connect the second heating chamber 102 with the third heating chamber 103. By setting the first fluid channel 105 away from the liquid inlet pipe 2 and the second fluid channel 107 away from the liquid outlet pipe 3, the flow distance of the fluid in the heating tube 1 is further improved, and the heat exchange efficiency between the fluid and the heating tube 6 is increased. An electric heating mechanism is provided in the heating tube 1.

[0021] As the temperature of the fluid passes through the first heating chamber 101, the second heating chamber 102 and the third heating chamber 103 in sequence, the temperature will become higher and higher. In order to avoid uneven surface temperature of each heating tube 6 and affect the service life of the electric heater, the number of heating tubes 6 in the third heating chamber 103 is less than the number of heating tubes 6 in the second heating chamber 102, and the number of heating tubes 6 in the second heating chamber 102 is less than the number of heating tubes 6 in the first heating chamber 101.

[0022] Among them, a liquid inlet pipe 2 connected to the first heating chamber 101 is provided on the top of the heating tube 1, and the liquid inlet pipe 2 is arranged at an end away from the first fluid channel 105. A liquid outlet pipe 3 connected to the third heating chamber 103 is provided at the bottom of the heating tube 1, and the liquid outlet pipe 3 is arranged at an end away from the second fluid channel 107. Through the above arrangement, the flow distance of the fluid in the heating tube 1 is increased, and the heat exchange efficiency between the fluid and the heating tube 6 is increased.

[0023] like Figure 3 The electric heating mechanism comprises a terminal head 4, a fastening seat 5 is provided at the end of the terminal head 4, and a plurality of heating tubes 6 are provided at the end of the fastening seat 5 for plugging into the first heating chamber 101, the second heating chamber 102 and the third heating chamber 103.

[0024] The working principle of the utility model is:

[0025] When in use, the fluid enters the first heating chamber 101 through the liquid inlet pipe 2, and is first heated by the heating tube 6 in the first heating chamber 101. The fluid heated by the heating tube 6 in the first heating chamber 101 enters the second heating chamber 102 through the first fluid channel 105, and the fluid heated by the first heating chamber 101 is heated again by the heating tube 6 in the second heating chamber 102. The reheated fluid enters the third heating chamber 103 through the second fluid channel 107, and the fluid reheated by the second heating chamber 102 is further heated by the heating tube 6 in the third heating chamber 103. Finally, the fluid after heating treatment is discharged through the liquid outlet pipe 3.

[0026] As the temperature of the fluid passes through the first heating chamber 101, the second heating chamber 102 and the third heating chamber 103 in sequence, the temperature will become higher and higher. In order to avoid uneven surface temperature of each heating tube 6 and affect the service life of the electric heater, the number of heating tubes 6 in the third heating chamber 103 is less than the number of heating tubes 6 in the second heating chamber 102, and the number of heating tubes 6 in the second heating chamber 102 is less than the number of heating tubes 6 in the first heating chamber 101.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A circulating electric heater with high heat exchange efficiency, comprising a heating cylinder (1), characterized in that: The heating tube (1) is provided with a first partition (104) and a second partition (106) for dividing the heating tube (1) into a first heating chamber (101), a second heating chamber (102) and a third heating chamber (103); one end of the first partition (104) is penetrated by a first fluid channel (105) for connecting the first heating chamber (101) with the second heating chamber (102); the end of the second partition (106) away from the first fluid channel (105) is penetrated by a second fluid channel (107) for connecting the second heating chamber (102) with the third heating chamber (103); and an electric heating mechanism is provided in the heating tube (1).

2. The circulating electric heater with high heat exchange efficiency according to claim 1, characterized in that: The electric heating mechanism comprises a terminal head (4), a fastening seat (5) is provided at the end of the terminal head (4), and a heating tube (6) is provided at the end of the fastening seat (5) for being plugged into a first heating chamber (101), a second heating chamber (102) and a third heating chamber (103).

3. The circulating electric heater with high heat exchange efficiency according to claim 2, characterized in that: The number of heating tubes (6) in the third heating chamber (103) is less than the number of heating tubes (6) in the second heating chamber (102), and the number of heating tubes (6) in the second heating chamber (102) is less than the number of heating tubes (6) in the first heating chamber (101).

4. The circulating electric heater with high heat exchange efficiency according to claim 1, characterized in that: A liquid inlet pipe (2) connected to the first heating chamber (101) is provided at the top of the heating cylinder (1); the liquid inlet pipe (2) is arranged at an end away from the first fluid channel (105).

5. The circulating electric heater with high heat exchange efficiency according to claim 1, characterized in that: A liquid outlet pipe (3) connected to the third heating chamber (103) is provided at the bottom of the heating cylinder (1); the liquid outlet pipe (3) is arranged at an end away from the second fluid channel (107).

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