Multi-tube-pass heat exchanger suitable for direct cooling process
By setting up pipe boxes and flow control parts at both ends of the multi-pipe heat exchanger, the flow route of the fluid in the heat transfer pipe is controlled, which solves the problem of excessive fluid retention time and achieves a more efficient heat exchange effect.
Patent Information
- Application Number
- CN202422367505.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing multi-pipe heat exchanger suitable for direct cooling technology cannot control the length of fluid retention in the heat exchanger, resulting in poor heat exchange effect, especially during preliminary heat exchange, which affects efficient heat exchange.
The first and second tube boxes are arranged at both ends of the heat exchanger, and a flow control member is installed on the second tube box. The flow control member controls the flow route of the fluid in the heat transfer pipe, so that it can flow or return in one direction, thereby adjusting the retention time of the fluid inside the housing.
By controlling the retention time of the fluid in the heat exchanger, the heat exchange effect of the fluid is improved and the use requirements of different heat exchange needs are met.
Smart Images
Figure CN223243394U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a heat exchanger, in particular to a multi-tube heat exchanger suitable for a direct cooling process. Background Art
[0002] A heat exchanger is a device used to transfer heat between two or more fluids. Its main function is to transfer heat from one fluid to another without allowing them to come into direct contact. A multi-pass heat exchanger is a heat exchange device designed with multiple side-by-side pipes. It is often used to achieve efficient heat exchange in industrial and engineering applications. Multi-pass heat exchangers are also used in direct cooling processes.
[0003] The current multi-tube heat exchanger suitable for direct cooling process cannot control the residence time of the fluid that needs heat exchange in the heat exchanger when in use, which makes it inconvenient to perform heat exchange operations on fluids with different heat exchange requirements. Especially when performing initial heat exchange on the fluid, since the fluid stays in the heat exchanger for too long, the heat exchange effect cannot meet the requirements, affecting the efficient heat exchange effect. Utility Model Content
[0004] The purpose of the present invention is to provide a multi-tube heat exchanger suitable for direct cooling process to solve the problems raised in the above background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A multi-tube heat exchanger suitable for a direct cooling process comprises: a shell, a heat transfer element and a first pipe box. The heat transfer element is arranged in the cavity of the shell, the first pipe box is arranged at one end of the shell, and the first pipe box is arranged to abut against one end of the heat transfer element. The second pipe box is arranged at the other end of the shell, and the second pipe box is arranged to abut against the other end of the heat transfer element. The second pipe box is provided with a flow control element.
[0007] The multi-tube heat exchanger suitable for the direct cooling process as described above: the bottom of the shell is symmetrically connected to the support, and the top of the shell is respectively provided with a filling port and a discharge port.
[0008] The multi-tube heat exchanger suitable for the direct cooling process as described above: the heat transfer components include tube sheets, heat transfer tubes and baffles, the tube sheets are symmetrically arranged, a plurality of heat transfer tubes are arranged between two of the tube sheets, and baffles are arranged on the plurality of heat transfer tubes at equal intervals.
[0009] The multi-tube heat exchanger suitable for the direct cooling process as described above: a first baffle is connected to the center of the inner wall of the cavity of the first tube box, and a first connection port and a second connection port are respectively provided on the outer wall of the first tube box on both sides of the first baffle.
[0010] The multi-tube heat exchanger suitable for the direct cooling process as described above: a second baffle plate is connected to the center of the inner wall of the cavity of the second tube box, a first delivery hole and a second delivery hole are respectively provided on the second tube boxes on both sides of the second baffle plate, and a third connection port is provided on the outer wall of the second tube box on the side of the second delivery hole, and a solenoid valve is provided in the third connection port.
[0011] The multi-tube heat exchanger suitable for the direct cooling process as described above: the flow control component includes a three-way valve, a first connecting pipe and a second connecting pipe, and the two symmetrical ports on the three-way valve are respectively connected to the first connecting pipe and the second connecting pipe.
[0012] In the multi-tube heat exchanger applicable to the direct cooling process as described above, the first baffle plate is arranged in conflict with the center of the tube sheet on one side, and the center of the tube sheet on the other side is arranged in conflict with the second baffle plate.
[0013] The multi-tube heat exchanger suitable for the direct cooling process as described above: the other side port of the three-way valve is connected to the second pipe box at the second delivery hole position, and the first connecting pipe is connected to the second pipe box at the first delivery hole position.
[0014] Compared with the prior art, the beneficial effects of the present invention are:
[0015] By respectively arranging a first pipe box and a second pipe box at both ends of the shell, and arranging a flow control component on the second pipe box, the flow route of the fluid in the heat transfer tube can be controlled by the flow control component, and the fluid can flow unidirectionally or reflux in the heat transfer tube arranged inside the shell, thereby controlling the retention time of the fluid inside the shell. When processing different heat exchange fluids, the heat exchange time of the fluid can be controlled, thereby improving the use effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a structural diagram of a multi-tube heat exchanger suitable for direct cooling process.
[0017] Figure 2 This is a schematic diagram of the structure of the shell in a multi-tube heat exchanger suitable for direct cooling process.
[0018] Figure 3 This is a schematic diagram of the structure of the heat transfer components in a multi-tube heat exchanger suitable for direct cooling process.
[0019] Figure 4 This is a schematic diagram of the structure of the first tube box in a multi-tube heat exchanger suitable for the direct cooling process.
[0020] Figure 5 This is a schematic diagram of the structure of the second tube box in a multi-tube heat exchanger suitable for the direct cooling process.
[0021] Figure 6This is a schematic diagram of the structure of the flow control components in a multi-tube heat exchanger suitable for direct cooling process.
[0022] In the figure: 1. Shell; 101. Support; 102. Filling port; 103. Discharge port; 2. Heat transfer element; 201. Tube sheet; 202. Heat transfer tube; 203. Baffle; 3. First pipe box; 301. First baffle; 302. First connecting port; 303. Second connecting port; 4. Second pipe box; 401. Second baffle; 402. First delivery hole; 403. Second delivery hole; 404. Third connecting port; 5. Flow control element; 501. Three-way valve; 502. First connecting pipe; 503. Second connecting pipe. DETAILED DESCRIPTION
[0023] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.
[0024] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.
[0025] In addition, numerous specific details are provided in the following specific examples to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, and components well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.
[0026] See also Figures 1 to 6 In an embodiment of the present invention, a multi-tube heat exchanger suitable for a direct cooling process includes: a shell 1, a heat transfer element 2 and a first pipe box 3. The heat transfer element 2 is arranged in the cavity of the shell 1, and the first pipe box 3 is arranged at one end of the shell 1. The first pipe box 3 is arranged to abut against one end of the heat transfer element 2. A second pipe box 4 is arranged at the other end of the shell 1. The second pipe box 4 is arranged to abut against the other end of the heat transfer element 2. A flow control element 5 is arranged on the second pipe box 4.
[0027] In this embodiment, when using the device, first, the external fluid supply pipe is connected to the first connection port 302, the heat exchange supply pipe is connected to the filling port 102, the external fluid recovery pipe is connected to the second connection port 303, and the heat exchange recovery pipe is connected to the discharge port 103. At this time, the three-way valve 501 is in an open state, one end of the first connection pipe 502 is connected to the other end at a 90-degree angle, the fluid is supplied from the first connection port 302, and the coolant is supplied from the filling port 102. The plurality of heat transfer pipes 202 are blocked by the first baffle plate 301 and the second baffle plate 401, and are divided into upper and lower There are two parts. When the fluid is supplied, it will flow through the heat transfer tube 202 in the upper part. When the fluid flows through one end of the second pipe box 4, it will flow out from the first delivery hole 402. Through the conduction of the first connecting pipe 502 and the three-way valve 501, the fluid flows into the second pipe box 4 below the second baffle plate 401. At this time, the solenoid valve inside the third connecting port 404 is in a closed state, so that the fluid that needs to be heat exchanged can flow back from the heat transfer tube 202 and flow into the first pipe box 3 below the first baffle plate 301. Finally, the fluid after heat exchange in the first pipe box 3 is discharged through the second connecting port 303.
[0028] When fluid backflow is not required and the fluid residence time within the shell 1 is reduced, the third connection port 404 and the second connection pipe 503 are connected to the fluid recovery pipe by connecting one end of the second connection port 303 to the fluid supply pipe. The three-way valve 501 is adjusted so that the three-way valves 501 at one end of the first connection pipe 502 and one end of the second connection pipe 503 are in communication. The fluid flowing through the upper heat transfer tube 202 is discharged from the first delivery hole 402 and directed through the flow control element 5. At this time, the solenoid valve within the third connection port 404 is in an open state. Since the three-way valve 501 at the second delivery hole 403 is in a closed state, the fluid flowing through the lower heat transfer tube 202 after heat exchange is directed from the third connection port 404. The existing disclosed technical means are not described in detail in this solution. Through this design, the residence time of the fluid to be heat exchanged within the heat exchanger can be adjusted to meet different heat exchange requirements.
[0029] As a further solution of the present invention, a support 101 is symmetrically connected to the bottom of the shell 1, and a filling port 102 and a discharge port 103 are respectively provided on the top of the shell 1.
[0030] In this embodiment, the support 101 is used to support the housing 1 off the ground, and the filling port 102 and the discharge port 103 are designed to be connected to the supply pipe and the recovery pipe of the coolant to meet the circulation of the coolant inside the housing 1.
[0031] As a further solution of the present invention, the heat transfer element 2 includes a tube sheet 201, a heat transfer tube 202 and a baffle 203. The tube sheets 201 are symmetrically arranged, and a plurality of heat transfer tubes 202 are arranged between the two tube sheets 201. Baffles 203 are arranged at equal intervals on the plurality of heat transfer tubes 202.
[0032] In this embodiment, the two tube sheets 201 are used for sealing at both ends of the shell 1 to ensure that the coolant and the fluid that needs heat exchange are separated. Through the design of the baffle 203, the coolant flowing through the inside of the shell 1 can be blocked, so that the residence time of the coolant inside the shell 1 is prolonged, thereby improving the heat exchange effect.
[0033] As a further solution of the present invention, a first blocking plate 301 is connected to the center of the inner wall of the cavity of the first pipe box 3 , and a first connecting port 302 and a second connecting port 303 are respectively provided on the outer wall of the first pipe box 3 on both sides of the first blocking plate 301 .
[0034] In this embodiment, the first baffle 301 inside the first pipe box 3 can divide the multiple heat transfer tubes 202 at one end of the shell 1 into two parts, upper and lower parts, to meet the reflux of the fluid inside the multiple heat transfer tubes 202. The second connecting port 303 can be connected to the external fluid supply pipe when the fluid flows unidirectionally through the heat transfer tubes 202, thereby improving the utilization rate of the multiple heat transfer tubes 202.
[0035] As a further solution of the present invention, a second baffle plate 401 is connected to the center of the inner wall of the cavity of the second pipe box 4. A first delivery hole 402 and a second delivery hole 403 are respectively formed in the second pipe box 4 on both sides of the second baffle plate 401. A third connection port 404 is provided on the outer wall of the second pipe box 4 on one side of the second delivery hole 403. A solenoid valve is provided in the third connection port 404. The first baffle plate 301 is arranged to abut against the center of the tube sheet 201 on one side, and the center of the tube sheet 201 on the other side is arranged to abut against the second baffle plate 401.
[0036] In this embodiment, the second blocking plate 401 inside the second pipe box 4 is used to divide the multiple heat transfer tubes 202 at the other end of the shell 1 into two parts, upper and lower parts, to meet the effect of fluid reflux cutoff. The solenoid valve arranged inside the third connecting port 404 can be closed when the fluid needs to reflux, so that the fluid can reflux normally.
[0037] As a further solution of the present invention, the flow control member 5 includes a three-way valve 501, a first connecting pipe 502, and a second connecting pipe 503. The two symmetrical ports on the three-way valve 501 are respectively connected to the first connecting pipe 502 and the second connecting pipe 503. The other port on the three-way valve 501 is connected to the second pipe box 4 at the location of the second delivery hole 403, and the first connecting pipe 502 is connected to the second pipe box 4 at the location of the first delivery hole 402.
[0038] In this embodiment, the flow route of the heat exchange fluid can be controlled by regulating the flow control component 5. In conjunction with the solenoid valve inside the third connecting port 404, the fluid can be refluxed or circulated in one direction inside several heat transfer tubes 202, thereby controlling the residence time of the heat exchange fluid inside the heat exchanger and improving heat exchange efficiency.
[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.
[0040] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A multi-tube heat exchanger suitable for direct cooling process, comprising: A shell (1), a heat transfer element (2) and a first pipe box (3), characterized in that a heat transfer element (2) is provided in a cavity of the shell (1), a first pipe box (3) is provided at one end of the shell (1), the first pipe box (3) is arranged to abut against one end of the heat transfer element (2), a second pipe box (4) is provided at the other end of the shell (1), the second pipe box (4) is arranged to abut against the other end of the heat transfer element (2), and a flow control element (5) is provided on the second pipe box (4); The bottom of the shell (1) is symmetrically connected to a support (101), and the top of the shell (1) is respectively provided with a filling port (102) and a discharge port (103).
2. A multi-tube heat exchanger suitable for direct cooling process according to claim 1, characterized in that: The heat transfer element (2) comprises a tube sheet (201), a heat transfer tube (202) and a baffle (203); the tube sheets (201) are symmetrically arranged; a plurality of heat transfer tubes (202) are arranged between two tube sheets (201); and baffles (203) are arranged at equal intervals on the plurality of heat transfer tubes (202).
3. The multi-tube heat exchanger suitable for direct cooling process according to claim 1, characterized in that: A first blocking plate (301) is connected to the center of the inner wall of the cavity of the first pipe box (3), and a first connecting port (302) and a second connecting port (303) are respectively provided on the outer walls of the first pipe box (3) on both sides of the first blocking plate (301).
4. The multi-tube heat exchanger suitable for direct cooling process according to claim 1, characterized in that: A second blocking plate (401) is connected to the center of the inner wall of the cavity of the second pipe box (4), a first delivery hole (402) and a second delivery hole (403) are respectively opened on the second pipe box (4) on both sides of the second blocking plate (401), and a third connecting port (404) is provided on the outer wall of the second pipe box (4) on the side of the second delivery hole (403), and a solenoid valve is provided in the third connecting port (404).
5. The multi-tube heat exchanger suitable for direct cooling process according to claim 1, characterized in that: The flow control component (5) comprises a three-way valve (501), a first connecting pipe (502) and a second connecting pipe (503), wherein two symmetrically arranged ports on the three-way valve (501) are respectively connected to the first connecting pipe (502) and the second connecting pipe (503).
6. The multi-tube heat exchanger suitable for direct cooling process according to claim 3, characterized in that: The first blocking plate (301) is disposed in abutment with the central portion of the tube plate (201) on one side, and the central portion of the tube plate (201) on the other side is disposed in abutment with the second blocking plate (401).
7. The multi-tube heat exchanger suitable for direct cooling process according to claim 5, characterized in that: The other side port of the three-way valve (501) is connected to the second pipe box (4) at the second delivery hole (403), and the first connecting pipe (502) is connected to the second pipe box (4) at the first delivery hole (402).