A pipe-in-pipe fluid heater

Abstract

The utility model discloses a pipeline formula fluid heater, including pipeline main part, the left and right two ends of pipeline main part all are set up with flange interface, the inside central fixedly connected with the baffle of pipeline main part, the left and right side surface of baffle all are fixedly connected with inner tube, and the both ends of inner tube are open, and the outside of inner tube is equipped with outer tube, and the opening direction of outer tube is to the baffle, the utility model discloses through setting up the baffle in the inside of pipeline main part, and the left and right two sides of baffle all set up inner tube and outer tube, and fluid needs to pass through spiral channel defined by spiral plate, annular region between outer tube and inner tube and inner tube inside in proper order, has prolonged the flow path and heat exchange time of fluid in heating chamber significantly, has improved heating efficiency.

Description

Technical Field

[0001] This utility model relates to the field of fluid heater technology, specifically a pipeline fluid heater. Background Technology

[0002] In industrial production processes and daily life, pipeline fluid heaters are commonly used to heat liquids or gases, such as for heating chemical raw material transportation and for hot water circulation in heating systems. Currently available pipeline fluid heaters have many areas for improvement.

[0003] Existing inline fluid heaters generally suffer from a single, short, and straight fluid flow path. When the fluid passes rapidly through the pipe, the contact time with the heated parts is insufficient, resulting in low heat exchange efficiency. Furthermore, the fluid is prone to forming temperature gradients, leading to poor heating uniformity. To address these issues, a new technical solution is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a pipeline fluid heater that solves the problem mentioned in the background art of existing pipeline fluid heaters, which generally have a single and short fluid flow path, resulting in insufficient contact time between the fluid and the heating part when the fluid passes through the pipeline quickly, leading to low heat exchange efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a pipeline fluid heater, comprising a pipeline body, flange interfaces at both ends of the pipeline body, a partition plate fixedly connected to the center of the inner side of the pipeline body, inner cylinders fixedly connected to the left and right side surfaces of the partition plate, the two ends of the inner cylinders being open, and an outer cylinder provided on the outer side of the inner cylinder, the opening direction of the outer cylinder facing the partition plate.

[0006] In this technical solution, inner and outer cylinders are provided on both the left and right sides of the partition. The fluid needs to pass through the spiral channel defined by the spiral plate, the annular area between the outer and inner cylinders, and the inside of the inner cylinder in sequence, which significantly prolongs the flow path and heat exchange time of the fluid in the heating chamber and improves the heating efficiency.

[0007] Preferably, a spiral plate is fixedly connected to the outer surface of the outer cylinder, and the spiral plate is fixedly connected to the inner wall of the pipe body, so that a spiral channel is formed between the outer cylinder and the pipe body.

[0008] Preferably, a plurality of hollow support rods are fixedly connected in a circumferential array between the left and right inner sidewalls of the pipe body, and the support rods penetrate the outer cylinder surface on both sides of the partition and are fixedly connected to the outer cylinder.

[0009] Preferably, electric heating tubes are arranged in a circumferential array inside the side wall of the inner cylinder and inside the side wall of the main pipe, and electric heating tubes are provided on the inner side of the support rod.

[0010] Preferably, a rotating rod is passed through the surface of the partition and rotatably connected to the rotating rod. One end of the rotating rod is located inside the flange interface and is fixedly connected to an impeller. The rotating rod passes through the outer cylinder and is rotatably connected to the outer cylinder.

[0011] Preferably, the rotating rod surfaces on both sides of the partition are fixedly connected with helical blades, the pitch of the helical blades is irregularly distributed, and the partition surface around the rotating rod is provided with several through grooves in a circumferential array.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] 1. This utility model provides a baffle plate on the inner side of the pipe body, and an inner cylinder and an outer cylinder are provided on both the left and right sides of the baffle plate. The fluid must pass through the spiral channel defined by the spiral plate, the annular area between the outer cylinder and the inner cylinder and the inside of the inner cylinder in sequence, which significantly prolongs the flow path and heat exchange time of the fluid in the heating chamber and improves the heating efficiency.

[0014] 2. This utility model provides a rotating rod inside the pipe body. When the fluid flows through the flange interface, the impeller drives the rotating rod to rotate. The spiral blades, through the irregular pitch design, generate periodic squeezing and expansion effects on the fluid. Combined with the through grooves on the surface of the baffle, a turbulence effect is formed, breaking the stratification of the fluid temperature gradient and improving the uniformity and stability of heat absorption. Attached Figure Description

[0015] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0016] Figure 1 This is an overall view of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the partition of this utility model.

[0019] In the diagram: 1. Pipe body; 101. Flange interface; 2. Rotating rod; 201. Impeller; 202. Spiral blade; 3. Baffle plate; 4. Outer cylinder; 5. Spiral plate; 6. Support rod; 7. Inner cylinder; 701. Through groove; 8. Electric heating tube. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description will further elaborate on them in conjunction with specific embodiments.

[0021] A type of inline fluid heater, see Figures 1 to 3 The system includes a main pipe body 1, with flange interfaces 101 at both ends of the main pipe body 1. The flange interfaces 101 are connected to the pipeline system, allowing fluid to enter the main pipe body 1 through the pipeline system. A baffle 3 is fixedly connected to the center of the inner side of the main pipe body 1. The baffle 3 divides the inner side of the main pipe body 1 into two parts, thereby increasing the flow path length of the fluid. A rotating rod 2 passes through the surface of the baffle 3 and is rotatably connected to the rotating rod 2. Several through grooves 701 are formed in a circular array on the surface of the baffle 3 around the rotating rod 2. After passing through the baffle 3, the fluid will pass through the through grooves 701 and enter the other side of the baffle 3. The overall structure of the left and right sides of the baffle 3 is symmetrical, except for the direction of the spiral blade 202 and the spiral plate 5.

[0022] Specifically, such as Figure 2 As shown, one end of the rotating rod 2 is located inside the flange interface 101 and is fixedly connected to an impeller 201. The rotating rod 2 passes through the outer cylinder 4 and is rotatably connected to the outer cylinder 4. Spiral blades 202 are fixedly connected to the surfaces of the rotating rod 2 on both sides of the partition plate 3. When the fluid enters or flows out of the flange interface 101 of the main pipe body 1, it will impact the impeller 201 and drive the rotating rod 2 to rotate. During the rotation of the rotating rod 2, the spiral blades 202 on the surface of the rotating rod 2 will rotate with it. This not only plays the role of conveying fluid, but also agitates the fluid, breaks the fluid temperature gradient stratification, improves the uniformity of heat absorption, and improves the heat absorption efficiency. The pitch of the spiral blades 202 is irregularly distributed, so that the fluid can be intermittently squeezed and expanded, further improving the heat absorption effect.

[0023] Furthermore, such as Figure 2 As shown, inner cylinders 7 are fixedly connected to both sides of the partition 3. The two ends of the inner cylinders 7 are open. An outer cylinder 4 is provided on the outside of the inner cylinder 7, with the opening of the outer cylinder 4 facing the partition 3. A spiral plate 5 is fixedly connected to the outer surface of the outer cylinder 4. The spiral plate 5 is fixedly connected to the inner wall of the pipe body 1. The spiral plate 5 forms a spiral channel between the outer cylinder 4 and the pipe body 1. After the fluid enters the pipe body 1, it will first flow from the spiral plate 5 on one side of the outer cylinder 4. The spiral plate 5 increases the length of the fluid's path, increasing the contact time between the fluid and the inner wall of the pipe body 1 and the surface of the outer cylinder 4, thereby prolonging the heating time and improving the heat absorption efficiency. After passing through the spiral plate 5, the fluid will turn back into the area between the outer cylinder 4 and the inner cylinder 7, and then turn back into the interior of the inner cylinder 7. This back-and-forth movement increases the heat absorption time and path length.

[0024] It is worth noting that, such as Figure 2 and Figure 3 As shown, several hollow support rods 6 are fixedly connected in a circular array between the left and right inner walls of the pipe body 1. The support rods 6 penetrate the surface of the outer cylinder 4 on both sides of the partition 3 and are fixedly connected to the outer cylinder 4. Electric heating tubes 8 are laid in a circular array inside the side wall of the inner cylinder 7 and the side wall of the pipe body 1. Electric heating tubes 8 are provided on the inner side of the support rods 6. The hollow support rods 6 are made of metal and have high thermal conductivity. Therefore, after the electric heating tubes 8 are energized, the support rods 6 will be heated, thereby heating the fluid passing through. At the same time, the electric heating tubes 8 inside the inner cylinder 7 and the pipe body 1 will heat the inner walls of the inner cylinder 7 and the pipe body 1. The fluid passing through will absorb heat. Meanwhile, the outer surface of the pipe body 1 includes heat insulation material to reduce heat loss.

[0025] In addition, all components designed in this utility model are general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. Those skilled in the art can fully implement them, so there is no need to elaborate. The content protected by this utility model does not involve improvements to the internal structure and method.

Claims

1. A pipe-type fluid heater, comprising a pipe body (1), characterized in that: The pipe body (1) has flange interfaces (101) at both ends. A partition (3) is fixedly connected to the center of the inner side of the pipe body (1). An inner cylinder (7) is fixedly connected to the left and right sides of the partition (3). The two ends of the inner cylinder (7) are open. An outer cylinder (4) is provided on the outside of the inner cylinder (7). The opening direction of the outer cylinder (4) faces the partition (3).

2. A pipeline fluid heater according to claim 1, characterized in that: A spiral plate (5) is fixedly connected to the outer surface of the outer cylinder (4). The spiral plate (5) is fixedly connected to the inner wall of the pipe body (1). The spiral plate (5) forms a spiral channel between the outer cylinder (4) and the pipe body (1).

3. A pipeline fluid heater according to claim 2, characterized in that: The pipe body (1) has several hollow support rods (6) fixedly connected in a circular array between its left and right inner sidewalls. The support rods (6) penetrate the outer cylinder (4) on both sides of the partition (3) and are fixedly connected to the outer cylinder (4).

4. A pipeline fluid heater according to claim 3, characterized in that: Electric heating tubes (8) are laid in a circumferential array inside the inner wall of the inner cylinder (7) and the inner wall of the pipe body (1), and electric heating tubes (8) are provided on the inner side of the support rod (6).

5. A pipeline fluid heater according to claim 1, characterized in that: The surface of the partition (3) is permeated by a rotating rod (2) and is rotatably connected to the rotating rod (2). One end of the rotating rod (2) is located inside the flange interface (101) and is fixedly connected to an impeller (201). The rotating rod (2) passes through the outer cylinder (4) and is rotatably connected to the outer cylinder (4).

6. A pipeline fluid heater according to claim 1, characterized in that: Helical blades (202) are fixedly connected to the surfaces of the rotating rods (2) on both sides of the partition (3). The pitch of the helical blades (202) is irregularly distributed. Several through slots (701) are opened in a circular array on the surface of the partition (3) around the rotating rod (2).

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