Plate heat exchanger for heat exchange unit

Abstract

The utility model relates to the field of heat exchange units, and provides a plate heat exchanger for a heat exchange unit, which comprises a plurality of heat exchange sheets, a plurality of heat exchange plates, a plurality of heat exchange plates, a plurality of heat exchange plates, a plurality of heat exchange plates and a plurality of heat exchange plates, and is characterized in that every two adjacent heat exchange plates are attached to each other, and sealing elements are arranged among the heat exchange plates; a primary side water inlet, a primary side water return opening, a secondary side water inlet and a secondary side water return opening are formed in the heat exchange sheet; heat conduction devices are arranged on the primary side water inlet, the primary side water return port, the secondary side water inlet and the secondary side water return port; the heat conduction devices are arranged on the primary side water inlet and the secondary side water return port and extend into the primary side water inlet and the secondary side water return port, so that the heat utilization rate of medium water is effectively improved, the heat exchange efficiency is improved, resources are effectively saved, and the environment is further protected.

Description

Technical Field

[0001] The utility model relates to the field of heat exchange units, in particular to a plate heat exchanger for a heat exchange unit. Background Art

[0002] The heat exchanger automatically and continuously converts the heat obtained from the primary network into domestic water and heating water required by users; that is, hot water is heat exchanged in the primary inlet heat exchanger of the unit and then flows out from the primary outlet of the unit; the secondary return water passes through the filter to remove dirt and then enters the plate heat exchanger through the secondary circulating water pump for heat exchange, producing hot water of different temperatures for heating, air conditioning, floor heating or domestic water to meet the needs of users;

[0003] The heat exchange of the heat exchange unit mainly relies on the plate heat exchanger. Due to the fast water flow rate, the medium water flows at a faster speed in the plate heat exchanger, which leads to uneven heat exchange between the medium water and the heat exchanger, resulting in low utilization rate. Utility Model Content

[0004] The utility model proposes a plate heat exchanger for a heat exchange unit. By arranging a heat conducting device, the heat conducting plate and the heat exchanging plate are interference fit, so that the heat of the medium water can be better transmitted to the heat exchanging plate, thereby improving the heat replacement rate. At the same time, by arranging the heat conducting plate, the heat exchange area with the medium water is increased, the heat exchange is more thorough, the heat utilization rate is effectively improved, and resources are further saved and the environment is protected.

[0005] The technical solution of the utility model is achieved in this way:

[0006] A plate heat exchanger for a heat exchange unit, comprising: a heat exchange fin, wherein a plurality of the heat exchange fins are provided, and the plurality of heat exchange fins are mutually attached in pairs, and a sealing member is provided between the heat exchange fins;

[0007] The heat exchange plate is provided with a primary water inlet, a primary water return inlet, a secondary water inlet and a secondary water return inlet;

[0008] The primary water inlet, the primary water return inlet, the secondary water inlet and the secondary water return inlet are all provided with heat conduction devices;

[0009] The heat conducting device comprises a flange, a flange tube, a support frame, a support rod and a heat conducting sheet;

[0010] The flange is installed on the outer side of the primary water inlet, the primary water return port, the secondary water inlet or the secondary water return port, the flange cylinder and the flange are integrally formed, the support frame is installed on the outer end of the flange cylinder, the support rod is installed on the support frame, and the heat conducting sheet is installed on the support rod;

[0011] The heat conducting sheet is in contact with the heat exchanging sheet.

[0012] Furthermore, the support frame includes four support legs, the bottom ends of the four support legs are mounted on the flange tube, the top ends are connected, and the connection point of the top ends of the four support legs is located on the axis of the flange tube.

[0013] Furthermore, the inner end of the support rod is mounted on the heat exchange fin at the innermost end.

[0014] Furthermore, the heat transfer plate includes a fan-shaped portion and an annular portion, the annular portion is located at the large end of the fan-shaped portion, the fan-shaped portion is mounted on the support rod, and the annular portion is in contact with the inner circumference of the heat exchange plate.

[0015] Furthermore, the annular portion of the heat conducting plate is bent relative to the sector-shaped portion toward the flange.

[0016] Furthermore, the heat conducting plate and the heat exchanging plate are interference connected.

[0017] Furthermore, the heat conducting sheet is provided with multiple layers, and each layer is provided with multiple;

[0018] The heat conducting sheets of adjacent layers are staggered with each other.

[0019] Furthermore, the angle between the plane where the heat conducting sheet is located and the axis of the flange tube is an acute angle.

[0020] The utility model provides a heat conduction device on the primary side water inlet and the secondary side water return port and extends into the interior, and the heat conduction plate and the heat exchange plate are interference fit, so that the heat of the medium water can be better transmitted to the heat exchange plate, thereby improving the heat replacement rate; at the same time, by providing the heat conduction plate, the heat exchange area with the medium water is increased, the heat exchange is more thorough, the heat utilization rate is effectively improved, and resources are further saved and the environment is protected. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a plate heat exchanger for a heat exchange unit in a specific embodiment of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of a heat conducting device of a plate heat exchanger for a heat exchange unit is shown;

[0024] Figure 3 for Figure 2 A schematic diagram of the three-dimensional structure of a heat conducting sheet of the heat conducting device shown;

[0025] Explanation of reference numerals: heat exchanger fin 1; primary water inlet 11; primary water return port 12; secondary water inlet 13; secondary water return port 14; heat transfer device 2; flange 21; flange cylinder 22; support frame 23; support rod 24; heat transfer fin 25; sector portion 251; annular portion 252. DETAILED DESCRIPTION

[0026] The following will be combined with the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the specific embodiment of the present invention, see Figure 1-Figure 3 , a plate heat exchanger for a heat exchange unit, comprising: a heat exchange plate 1, wherein a plurality of heat exchange plates 1 are provided, wherein the plurality of heat exchange plates 1 are mutually attached in pairs, and seals are provided between the heat exchange plates 1;

[0028] The heat exchange plate 1 is provided with a primary water inlet 11, a primary water return port 12, a secondary water inlet 13 and a secondary water return port 14;

[0029] The primary water inlet 11, the primary water return port 12, the secondary water inlet 13 and the secondary water return port 14 are all provided with a heat conduction device 2;

[0030] The heat conducting device 2 comprises a flange 21, a flange tube 22, a support frame 23, a support rod 24 and a heat conducting sheet 25;

[0031] The flange 21 is installed on the outer side of the primary water inlet 11, the primary water return port 12, the secondary water inlet 13 or the secondary water return port 14, the flange cylinder 22 is integrally formed with the flange 21, the support frame 23 is installed on the outer end of the flange cylinder 22, the support rod 24 is installed on the support frame 23, and the heat conducting sheet 25 is installed on the support rod 24;

[0032] The heat conducting sheet 25 is in contact with the heat exchanging sheet 1 .

[0033] In the specific embodiment of the present invention, see Figure 1-Figure 3The support frame 23 includes four support legs, the bottom ends of the four support legs are installed on the flange tube 22, the top ends are connected, and the connection point of the top ends of the four support legs is located on the axis of the flange tube 22.

[0034] In the specific embodiment of the present invention, see Figure 1-Figure 3 The inner end of the support rod 24 is mounted on the heat exchange fin at the innermost end.

[0035] In the specific embodiment of the present invention, see Figure 1-Figure 3 The heat conducting sheet 25 includes a sector portion 251 and an annular portion 252 . The annular portion 252 is located at the large end of the sector portion 251 . The sector portion 251 is mounted on the support rod 24 . The annular portion 252 is in contact with the inner circumference of the heat exchange sheet 1 .

[0036] In the specific embodiment of the present invention, see Figure 1-Figure 3 The annular portion 252 of the heat conducting sheet 25 is bent relative to the sector portion 251 toward the flange 21 .

[0037] In the specific embodiment of the present invention, see Figure 1-Figure 3 The heat conducting sheet 25 and the heat exchanging sheet 1 are connected by interference fit.

[0038] In the specific embodiment of the present invention, see Figure 1-Figure 3 , the heat conducting sheet 25 is provided with multiple layers, and each layer is provided with multiple;

[0039] The heat conducting sheets 25 in adjacent layers are staggered with each other.

[0040] In the specific embodiment of the present invention, see Figure 1-Figure 3 The angle between the plane where the heat conducting sheet 25 is located and the axis of the flange cylinder 22 is an acute angle.

[0041] In the specific embodiment of the present invention, see Figure 1-Figure 3 The heat transfer plate transfers the heat of the medium water to the heat transfer plate by contacting with the medium water and the heat transfer plate. By setting the heat transfer plate, the flow rate of the medium water can be effectively slowed down, and the contact area and contact time between the medium water and the heat transfer plate and the heat transfer plate can be increased, so that the heat transfer is more thorough, and the heat of the medium water can be more effectively utilized;

[0042] The heat conducting sheet is long and thin, and has a certain resilience, so that the heat conducting sheet and the heat exchange sheet can fit tightly together to ensure the heat transfer effect;

[0043] At the same time, the heat conducting sheets are arranged in layers and staggered positions, which can block the medium water and slow down the flow rate of the medium water again, further improving the heat exchange efficiency;

[0044] The utility model provides a heat conduction device on the primary side water inlet and the secondary side water return port and extends into the interior, thereby effectively improving the heat utilization rate of the medium water and the heat exchange efficiency, thereby effectively saving resources and further protecting the environment.

[0045] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A plate heat exchanger for a heat exchange unit, comprising: A heat exchange plate, wherein a plurality of heat exchange plates are provided, and the plurality of heat exchange plates are bonded to each other in pairs, and a seal is provided between the heat exchange plates; The characteristic is that: the heat exchange plate is provided with a primary water inlet, a primary water return inlet, a secondary water inlet and a secondary water return inlet; The primary water inlet, the primary water return inlet, the secondary water inlet and the secondary water return inlet are all provided with a heat conduction device; The heat conducting device comprises a flange, a flange tube, a support frame, a support rod and a heat conducting sheet; The flange is installed on the outer side of the primary water inlet, the primary water return port, the secondary water inlet or the secondary water return port, the flange cylinder and the flange are integrally formed, the support frame is installed on the outer end of the flange cylinder, the support rod is installed on the support frame, and the heat conducting sheet is installed on the support rod; The heat conducting sheet is in contact with the heat exchanging sheet.

2. A plate heat exchanger for a heat exchange unit according to claim 1, characterized in that: The support frame includes four support legs, the bottom ends of the four support legs are mounted on the flange tube, the top ends are connected, and the connection point of the top ends of the four support legs is located on the axis of the flange tube.

3. A plate heat exchanger for a heat exchange unit according to claim 1, characterized in that: The inner end of the support rod is mounted on the heat exchange fin at the innermost end.

4. A plate heat exchanger for a heat exchange unit according to claim 1, characterized in that: The heat transfer plate includes a fan-shaped portion and an annular portion, wherein the annular portion is located at the large end of the fan-shaped portion, the fan-shaped portion is mounted on the support rod, and the annular portion is in contact with the inner circumference of the heat exchange plate.

5. A plate heat exchanger for a heat exchange unit according to claim 4, characterized in that: The annular portion of the heat conducting sheet is bent relative to the sector portion toward the flange.

6. A plate heat exchanger for a heat exchange unit according to claim 5, characterized in that: The heat conducting sheet and the heat exchanging sheet are interference connected.

7. A plate heat exchanger for a heat exchange unit according to claim 1, characterized in that: The heat conducting sheet is provided with multiple layers, and each layer is provided with multiple; The heat conducting sheets of adjacent layers are staggered with each other.

8. The plate heat exchanger for a heat exchange unit according to claim 1, characterized in that: The angle between the plane where the heat conducting sheet is located and the axis of the flange cylinder is an acute angle.

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