Plate-type frequency converter heat exchanger substrate
By employing curved flow channels and positioning bump structures in the plate heat exchanger substrate, the problem of insufficient heat absorption of cold fluid caused by oblique flow channels is solved, achieving more efficient heat transfer and a stable pressing process.
Patent Information
- Application Number
- CN202323582770.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-27
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2033-12-27
AI Technical Summary
Most existing plate heat exchanger substrates use oblique flow channels, which makes it difficult for the cold fluid to fully absorb the heat of the hot fluid, thus affecting the heat exchange efficiency.
The curved flow channel design increases the flow distance and contact surface of the cold fluid within the plates, and the interlocking structure of the positioning protrusions and grooves ensures stable stacking of the plates, thereby improving the stability of the flow channel.
It extends the flow distance of the cold fluid, increases the contact area between the cold fluid and the plate, improves heating efficiency, ensures stability during the pressing process, and enhances heat exchange effect.
Smart Images
Figure CN222339807U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchanger substrates, in particular to a plate-type frequency converter heat exchanger substrate. Background Art
[0002] The heat exchange unit is a set of heat exchange combination devices assembled on the rack, including plate heat exchanger, circulation pump, make-up water pump and inverter, etc. The inverter is an electric power control device that controls the AC motor by changing the working power frequency of the motor using frequency conversion technology and microelectronics technology. The plate heat exchanger is a high-efficiency heat exchanger composed of a series of metal sheets with a certain corrugated shape. Thin rectangular channels are formed between the various plates, and heat is exchanged through the plates. Therefore, the plate heat exchanger and the inverter need to be used in combination.
[0003] When the plate-type inverter heat exchanger substrate is in use, when the cold fluid enters the cold side of the plate group, the cold fluid passes through the flow channel in the plate group, and the cold flow forms a thin film flow between the inner wall of the flow channel and the plate. Heat will be transferred from the hot fluid to the cold fluid, and the cold fluid will also absorb heat, causing the temperature of the cold fluid to rise. Since most of the existing substrate flow channels are oblique flow channels, and the oblique flow channels have a fast circulation speed, it is difficult for the cold fluid to fully absorb the heat of the hot fluid, which in turn causes the substrate heat conduction efficiency to be poor, affecting the heat exchange effect of the heat exchanger. Utility Model Content
[0004] The utility model aims to provide a plate-type inverter heat exchanger substrate to solve the problem that most of the heat exchanger substrates on the market currently have oblique flow channels, which makes it difficult for the cold fluid to fully absorb the heat of the hot fluid.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a plate-type inverter heat exchanger substrate, comprising a plate, an end plate and a bottom plate, an end plate being arranged at the front end of the plate, a positioning protrusion being pressed on the outer wall of the plate, a bottom plate being arranged at the rear end of the plate, two groups of first through grooves being opened through the interior of the plate, and two groups of second through grooves being opened through the interior of the plate below the first through grooves.
[0006] Preferably, a liquid flow groove is pressed on one side of the plate located outside the positioning protrusion, and a curved flow channel is pressed on one side of the plate located inside the liquid flow groove.
[0007] Preferably, two groups of first connecting tubes are provided through the interior of the end plate, and two groups of second connecting tubes are provided through the interior of the end plate below the first connecting tubes.
[0008] Preferably, the top ends and bottom ends of the plate, the end plate and the bottom plate are all provided with mounting grooves.
[0009] Preferably, multiple groups of plates are provided, and the multiple groups of plates are located between the end plates and the bottom plate, and rubber strips are provided between the multiple groups of plates.
[0010] Preferably, a plurality of groups of positioning protrusions are pressed on one side of a group of plates, and a groove is provided on the inner side of the positioning protrusions on the other side of the plates.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] 1. When the plate-type inverter heat exchanger substrate is in use, the existing oblique flow channel is replaced with a curved flow channel, thereby extending the flow distance of the cold fluid inside the multiple sets of plates, and also increasing the contact surface between the cold fluid and the plates, thereby improving the heating efficiency of the cold fluid, and then improving the heating effect of the heat exchanger substrate on the cold fluid.
[0013] 2. When the plate-type inverter heat exchanger substrate needs to be pressed and clamped, multiple groups of plates are stacked by positioning protrusions and grooves, and the stacked plates are placed on the top of the bottom plate, and the end plate is placed on the top of the plates. The multiple groups of plates are pressed and clamped by a hydraulic press, and the positioning protrusions and grooves are set for engagement, so that the multiple groups of plates can be easily and stably stacked, thereby preventing the stacked plates from being misplaced during the pressing process, thereby ensuring the stability of the plate-type inverter heat exchanger substrate during the pressing process. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;
[0016] Figure 2 This is a schematic diagram of the main structure of the plate of the utility model;
[0017] Figure 3 It is a right side structural schematic diagram of the utility model.
[0018] In the figure: 1, plate; 101, first through groove; 102, second through groove; 103, liquid flow groove; 104, curved flow channel; 2, end plate; 201, first connecting pipe; 202, second connecting pipe; 3, positioning protrusion; 4, bottom plate. DETAILED DESCRIPTION
[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
[0020] See also Figure 1 , Figure 2 and Figure 3 The utility model provides a technical solution: a plate-type inverter heat exchanger substrate, comprising a plate 1, an end plate 2 and a bottom plate 4, the front end of the plate 1 is provided with the end plate 2, the outer wall of the plate 1 is pressed with a positioning protrusion 3, the rear end of the plate 1 is provided with the bottom plate 4, the inside of the plate 1 is provided with two groups of first through grooves 101, and the inside of the plate 1 is provided with two groups of second through grooves 102 below the first through grooves 101.
[0021] See also Figure 2 It can be seen that a liquid flow groove 103 is pressed on one side of the plate 1 located outside the positioning protrusion 3 , and a curved flow channel 104 is pressed on one side of the plate 1 located inside the liquid flow groove 103 .
[0022] In specific implementation, when the heat exchanger substrate is needed, the cold fluid is injected into the first through groove 101 through the first connecting pipe 201, the cold fluid flows through the first through groove 101 to the liquid flow groove 103, and the cold fluid forms a thin film flow through the curved flow channel 104. By replacing the existing oblique flow channel with the curved flow channel 104, the flow distance of the cold fluid on the inner side of the multiple groups of plates 1 is extended, and the contact surface between the cold fluid and the plate 1 is increased, thereby improving the heating efficiency of the cold fluid. The cold fluid flows to the inside of the second through groove 102, and the hot fluid in the multiple groups of plates 1 conducts heat to the cold fluid, so that the temperature of the cold fluid increases, thereby improving the heating effect of the heat exchanger substrate on the cold fluid.
[0023] See also Figure 1 and Figure 3 It can be seen that two groups of first connecting pipes 201 are disposed through the end plate 2 , and two groups of second connecting pipes 202 are disposed through the end plate 2 below the first connecting pipes 201 .
[0024] In specific implementation, one group of first connecting tubes 201 is the inlet of cold fluid, another group of first connecting tubes 201 is the outlet of hot fluid, one group of second connecting tubes 202 is the outlet of cold fluid, and another group of second connecting tubes 202 is the inlet of hot fluid.
[0025] See also Figure 1 , Figure 2 and Figure 3 It can be seen that the top and bottom ends of the plate 1, the end plate 2 and the bottom plate 4 are all provided with mounting grooves.
[0026] In specific implementation, the plate 1, the end plate 2 and the bottom plate 4 are connected and fixed by using bolts to penetrate the mounting grooves.
[0027] See also Figure 1 , Figure 2 and Figure 3 It can be seen that there are multiple groups of plate sheets 1 , and the multiple groups of plate sheets 1 are located between the end plate 2 and the bottom plate 4 , and rubber strips are arranged between the multiple groups of plate sheets 1 .
[0028] See also Figure 2 It can be seen that multiple groups of positioning protrusions 3 are pressed on one side of a group of plates 1, and grooves are provided on the inner side of the positioning protrusions 3 on the other side of the plates 1. The positioning protrusions 3 on one side of a group of plates 1 are engaged and connected with the grooves on one side of the other side of the plates 1.
[0029] During specific implementation, when the plate-type inverter heat exchanger substrate needs to be pressed and clamped, rubber strips are arranged between multiple groups of plates 1, and the multiple groups of plates 1 are stacked by positioning protrusions 3 and grooves, and the stacked plates 1 are placed on the top of the bottom plate 4, and the end plate 2 is placed on the top of the plate 1. The multiple groups of plates 1 are pressed and clamped by a hydraulic press, and the positioning protrusions 3 and the grooves are arranged to engage with each other, so that the multiple groups of plates 1 can be easily and stably stacked, thereby preventing the stacked plates 1 from being misaligned during the pressing process, thereby ensuring the stability of the plate-type inverter heat exchanger substrate during the pressing process.
[0030] To sum up: when it is necessary to use the plate-type inverter heat exchanger substrate, the hot fluid and the cold fluid enter the inner side of the multiple groups of plates 1 through the first connecting tube 201 and the second connecting tube 202, and the cold fluid forms a thin film flow through the curved flow channel 104. The cold fluid flows to the inside of the second through groove 102, and the hot fluid in the multiple groups of plates 1 conducts heat to the cold fluid, so that the temperature of the cold fluid increases.
[0031] In the description of the present invention, it should be understood that terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0033] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A plate-type inverter heat exchanger substrate, comprising a plate (1), an end plate (2) and a bottom plate (4), characterized in that: The front end of the plate (1) is provided with an end plate (2), the outer wall of the plate (1) is pressed with a positioning protrusion (3), the rear end of the plate (1) is provided with a bottom plate (4), the interior of the plate (1) is provided with two groups of first through grooves (101), and the interior of the plate (1) is provided with two groups of second through grooves (102) located below the first through grooves (101).
2. The plate-type inverter heat exchanger substrate according to claim 1, characterized in that: A liquid flow groove (103) is pressed on one side of the plate (1) located outside the positioning protrusion (3), and a curved flow channel (104) is pressed on one side of the plate (1) located inside the liquid flow groove (103).
3. The plate-type inverter heat exchanger substrate according to claim 1, characterized in that: Two groups of first connecting tubes (201) are arranged through the interior of the end plate (2), and two groups of second connecting tubes (202) are arranged through the interior of the end plate (2) below the first connecting tubes (201).
4. The plate-type inverter heat exchanger substrate according to claim 1, characterized in that: The top ends and bottom ends of the plate (1), the end plate (2) and the bottom plate (4) are all provided with mounting grooves.
5. The plate-type inverter heat exchanger substrate according to claim 1, characterized in that: The plate sheets (1) are provided in a plurality of groups, and the plurality of groups of the plate sheets (1) are located between the end plate (2) and the bottom plate (4), and rubber strips are provided between the plurality of groups of the plate sheets (1).
6. The plate-type inverter heat exchanger substrate according to claim 1, characterized in that: A plurality of groups of positioning protrusions (3) are pressed on one side of a group of the plates (1), and a groove is provided on the inner side of the positioning protrusions (3) on the other side of the plates (1).