CN219319130U - Waste heat recovery system - Google Patents
Waste heat recovery system Download PDFInfo
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- CN219319130U CN219319130U CN202320008416.2U CN202320008416U CN219319130U CN 219319130 U CN219319130 U CN 219319130U CN 202320008416 U CN202320008416 U CN 202320008416U CN 219319130 U CN219319130 U CN 219319130U
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- heat exchange
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- heat recovery
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Abstract
The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a waste heat recovery system which comprises a heat exchange part, a hydraulic pump station and a controller; the heat exchange part is provided with a waste heat recovery port, a discharge port, a medium inlet and a medium outlet, the waste heat recovery port is communicated with the discharge port, the discharge port is provided with a temperature sensor A, the waste heat recovery port is provided with an opening and closing valve A, and the medium inlet is communicated with the medium outlet; the outlet of the hydraulic pump station is communicated with the medium inlet; the hydraulic pump station, the temperature sensor A and the on-off valve A are all connected with the controller through signals. The controller in the waste heat recovery system controls the flow of the refrigerating fluid and the flow of the hot fluid respectively through the hydraulic pump station and the on-off valve A, so that the cold fluid and the hot fluid can perform sufficient heat exchange, the condition that the heat energy is not fully utilized or the heating effect on the cold fluid is poor is avoided, and the waste heat recovery system is more convenient to use.
Description
Technical Field
The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a waste heat recovery system.
Background
A heat exchanger is a device that transfers a portion of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. The heat exchanger plays an important role in chemical industry, petroleum, power, food and other industrial production, and can be used as a heater, a cooler, a condenser, an evaporator, a reboiler and the like in the chemical industry, so that the heat exchanger has wide application range.
The existing heat exchanger has a simple structure, cannot control the flow of hot fluid and cold fluid, is easy to cause insufficient heat energy utilization (the flow of cold fluid is far smaller than that of hot fluid), causes a great deal of heat energy to be dissipated, or has poor heating effect (the flow of hot fluid is far smaller than that of cold fluid), and the temperature of the refrigeration fluid is not up to the use requirement, so that the subsequent working procedure cannot be normally carried out. Therefore, the utility model provides a heat exchange system capable of adjusting the flow of hot fluid or cold fluid according to the use condition, which is a technical problem to be solved by the person skilled in the art.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a waste heat recovery system which is used for solving the technical problems that the heat exchanger in the prior art is easy to have insufficient heat energy utilization or poor heating effect, and the heat exchanger is inconvenient to use.
The utility model is realized by the following technical scheme:
a waste heat recovery system comprises a heat exchange part, a hydraulic pump station and a controller;
the heat exchange part is provided with a waste heat recovery port, a discharge port, a medium inlet and a medium outlet, wherein the waste heat recovery port is communicated with the discharge port, a temperature sensor A is arranged at the discharge port, an opening and closing valve A is arranged at the waste heat recovery port, and the medium inlet is communicated with the medium outlet;
the outlet of the hydraulic pump station is communicated with the medium inlet;
the hydraulic pump station, the temperature sensor A and the on-off valve A are in signal connection with the controller, and the controller is based on the heat flow body temperature after heat exchange between the heat flow body monitored by the temperature sensor A and the cold flow body, and controls the hydraulic pump station and/or the on-off valve A to enable the heat flow body temperature after heat exchange to be in accordance with a first preset temperature when the heat flow body temperature is lower than or higher than the first preset temperature.
In order to better realize the utility model, the waste heat recovery system further comprises a temperature sensor B and an on-off valve B, wherein the temperature sensor B is arranged at the medium outlet, the on-off valve B is arranged at the inlet of the hydraulic pump station, the temperature sensor B and the on-off valve B are in signal connection with the controller, and the controller is used for controlling the hydraulic pump station and/or the on-off valve B to enable the cold flow temperature after heat exchange to be in accordance with a second preset temperature when the cold flow temperature is lower than or higher than the second preset temperature based on the cold flow temperature monitored by the temperature sensor B.
In order to better realize the utility model, the structure is further optimized, and the waste heat recovery port is provided with a filter screen.
In order to better realize the utility model, the structure is further optimized, and a filter is arranged at the inlet of the hydraulic pump station.
In order to better realize the utility model, the structure is further optimized, and the heat exchange part comprises a shell and a heat exchange assembly; the waste heat recovery device is characterized in that a heat exchange cavity is arranged in the shell, the waste heat recovery port, the discharge port, the medium inlet and the medium outlet are all arranged on the shell, the medium inlet and the medium outlet are all communicated with the heat exchange cavity, the heat exchange component is arranged in the heat exchange cavity, and the waste heat recovery port and the discharge port are communicated through the heat exchange component.
In order to better realize the utility model, the structure is further optimized, and the heat exchange part comprises a shell and a heat exchange assembly; the heat exchange device is characterized in that a heat exchange cavity is arranged in the shell, the waste heat recovery port, the discharge port, the medium inlet and the medium outlet are all arranged on the shell, the waste heat recovery port and the discharge port are all communicated with the heat exchange cavity, the heat exchange component is arranged in the heat exchange cavity, and the medium inlet and the medium outlet are communicated through the heat exchange component.
In order to better realize the utility model, the structure is further optimized, the heat exchange assembly comprises a plurality of heat exchange plates, the cross section of each heat exchange plate is wavy, a heat exchange channel A is arranged in each heat exchange plate, the convex ends of two adjacent heat exchange plates are mutually abutted, and a heat exchange channel B is formed by a gap between the concave ends of two adjacent heat exchange plates.
In order to better realize the utility model, the structure is further optimized, the heat exchange assembly comprises a plurality of heat exchange plates, the heat exchange plates comprise two heat exchange plates which are arranged in parallel, a plurality of protruding parts are arranged on opposite surfaces of the two heat exchange plates, the protruding parts of the two heat exchange plates are mutually abutted, and a gap between the two heat exchange plates is divided into a plurality of heat exchange channels A;
two the one side that the heat transfer piece deviates from each other all is provided with the depressed part, the position of depressed part with the position of bellying is corresponding, and two adjacent heat transfer board laminating each other, two adjacent the space between the depressed part on the heat transfer board forms heat transfer passageway B.
In order to better realize the utility model, the structure is further optimized, and the shape of the protruding part is a regular quadrangular frustum.
In order to better implement the present utility model, further optimization is made in the above structure, all the protruding portions are staggered.
In summary, the utility model has the following technical effects:
the controller in the waste heat recovery system can control the flow of the refrigerating fluid through the hydraulic pump station, and the controller can monitor the heat exchange condition of the hot fluid and the cold fluid at any time through the temperature sensor A so as to control the action of the on-off valve A, thereby realizing the control of the flow of the hot fluid, avoiding the occurrence of insufficient heat energy utilization or poor heating effect on the cold fluid, and further facilitating the use of the waste heat recovery system.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a waste heat recovery system of the present utility model;
FIG. 2 is a schematic view of a heat exchanging part in a waste heat recovery system according to the present utility model;
FIG. 3 is a schematic diagram of the structure of a hydraulic pump station in a waste heat recovery system according to the present utility model;
FIG. 4 is a schematic view of a heat exchange assembly according to the first embodiment;
fig. 5 is a schematic structural view of a heat exchange assembly according to a second embodiment;
FIG. 6 is a transverse cross-sectional view of a heat exchange assembly according to a second embodiment;
fig. 7 is a cross-sectional view of a heat exchanger plate according to the second embodiment.
Reference numerals:
1. a heat exchange part; 11. a housing; 111. a waste heat recovery port; 112. a discharge port; 113. a medium inlet; 114. a medium outlet; 12. a temperature sensor A; 13. opening and closing the valve A; 14. a heat exchange assembly; 141. a heat exchange channel A; 142. a heat exchange channel B; 143. a boss; 144. a recessed portion;
2. a hydraulic pump station; 21. temperature sensors B, 22, an on-off valve B; 23. a filter;
3. and a controller.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, based on the examples herein, which are within the scope of the utility model as defined by the claims, will be within the scope of the utility model as defined by the claims.
In the description of the present utility model, it is to be noted that, unless otherwise indicated, the meaning of "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", etc., refer to an orientation or positional relationship based on that shown in the drawings, and are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model can be understood as appropriate by those of ordinary skill in the art.
Embodiment one:
as shown in fig. 1 to 4:
a waste heat recovery system comprises a heat exchange part 1, a hydraulic pump station 2 and a controller 3; wherein, the liquid crystal display device comprises a liquid crystal display device,
the heat exchange part 1 is provided with a waste heat recovery port 111, a discharge port 112, a medium inlet 113 and a medium outlet 114, the waste heat recovery port 111 is communicated with the discharge port 112, a temperature sensor A12 is arranged at the discharge port 112, an opening and closing valve A13 is arranged at the waste heat recovery port 111, and the medium inlet 113 is communicated with the medium outlet 114;
the outlet of the hydraulic pump station 2 is communicated with the medium inlet 113;
the hydraulic pump station 2, the temperature sensor A12 and the on-off valve A13 are all connected with the controller 3 through signals.
Before using the waste heat recovery system, a worker can install the waste heat recovery system in a pipe network; wherein, the liquid crystal display device comprises a liquid crystal display device,
the waste heat outlet is communicated with the waste heat recovery port 111, the discharge port 112 is communicated with a chimney or a water tank (depending on the medium type of the hot fluid), the inlet of the hydraulic pump station 2 is communicated with a cold fluid supply place, and the medium outlet 114 is communicated with the subsequent equipment needing to use the heated cold fluid;
in the working process of the waste heat recovery system, hot fluid can enter the heat exchange part 1 through the waste heat recovery port 111, cold fluid enters the heat exchange part 1 under the suction action of the hydraulic pump station 2, the hot fluid and the cold fluid exchange heat in the heat exchange part 1, and the hot fluid after heat exchange can be discharged to a chimney or a pool through the discharge port 112;
when the hot fluid after heat exchange passes through the discharge port 112, the temperature sensor a12 detects the temperature of the hot fluid at the discharge port 112, and sends the detected temperature information to the controller 3, and the controller 3 determines the heat exchange condition of the hot fluid and the cold fluid.
If the temperature of the hot fluid is lower than the first preset temperature, the controller 3 controls the opening and closing valve A13 to act, so that the opening of the waste heat recovery port 111 is increased to increase the flow rate of the hot fluid, or reduces the power of the hydraulic pump station 2 to reduce the flow rate of the cold fluid, so that the temperature of the cold fluid after heat exchange can reach the use requirement of subsequent equipment;
if the temperature of the hot fluid is higher than the first preset temperature, the controller 3 controls the on-off valve a13 to act, so that the opening of the waste heat recovery port 111 is reduced to reduce the flow rate of the hot fluid, or the power of the hydraulic pump station 2 is increased to increase the flow rate of the cold fluid to reduce the loss of heat energy in the hot fluid.
Preferably, the waste heat recovery system further comprises a temperature sensor B21 and an on-off valve B22; wherein, the liquid crystal display device comprises a liquid crystal display device,
the temperature sensor B21 is arranged at the medium outlet 114, the on-off valve B22 is arranged at the inlet of the hydraulic pump station, and the temperature sensor B21 and the on-off valve B22 are both in signal connection with the controller 3;
the temperature sensor B21 can detect the temperature of the cold fluid at the medium outlet 114 and send temperature information to the controller 3, the controller 3 compares the temperature information sent by the temperature sensor B21 with a second preset temperature to understand the heat exchange condition of the cold fluid, and then the flow rate of the cold fluid is controlled by opening and closing the valve B22, so that the waste heat recovery system is more convenient to use.
When the flow rate of the cooling fluid needs to be controlled, the controller 3 preferably adjusts the hydraulic pump station 2 to change the power of the hydraulic pump station so as to control the flow rate of the cooling fluid;
specifically, in the normal working state, the on-off valve B22 is in a half-open state, and when the hydraulic pump station 2 is in the working state with minimum power and the flow of the cold fluid needs to be reduced, the controller 3 controls the on-off valve B22 to act so as to reduce the opening size of the medium inlet 113, thereby reducing the flow of the cold fluid;
when the hydraulic pump station 2 is in the working state of maximum power and the flow rate of the cold fluid needs to be increased, the controller 3 controls the on-off valve B22 to act so as to increase the opening size of the medium inlet 113, thereby increasing the flow rate of the cold fluid.
Preferably, a filter screen is disposed at the waste heat recovery port 111, and the filter screen can filter impurities in the hot fluid, so as to avoid the situation that the waste heat recovery system cannot work normally due to the impurities in the hot fluid being blocked in the heat exchange portion 1.
Optimally, the inlet of the hydraulic pump station 2 is provided with the filter 23, and the filter 23 can filter impurities in the cold fluid so as to avoid the situation that the impurities in the cold fluid are blocked in the heat exchange part 1 or enter the subsequent equipment, so that the heat exchange part 1 or the subsequent equipment cannot work normally.
Preferably, the heat exchange part 1 comprises a shell 11 and a heat exchange assembly 14; wherein, the liquid crystal display device comprises a liquid crystal display device,
a heat exchange cavity is arranged in the shell 11, the waste heat recovery port 111, the discharge port 112, the medium inlet 113 and the medium outlet 114 are all arranged on the shell 11, the medium inlet 113 and the medium outlet 114 are communicated with the heat exchange cavity, the heat exchange assembly 14 is arranged in the heat exchange cavity, and the waste heat recovery port 111 and the discharge port 112 are communicated through the heat exchange assembly 14;
alternatively, the waste heat recovery port 111 and the exhaust port 112 are both in communication with the heat exchange chamber, and the medium inlet 113 and the medium outlet 114 are in communication through the heat exchange assembly 14.
Preferably, the heat exchange assembly 14 includes a plurality of heat exchange plates, the cross-section of the heat exchange plates is in a wave shape, a heat exchange channel A141 is arranged in the heat exchange plates, the convex ends of two adjacent heat exchange plates are mutually abutted, and a heat exchange channel B142 is formed by a gap between the concave ends of two adjacent heat exchange plates;
the hot fluid enters the heat exchange channel A141 through the waste heat recovery port 111, the cold fluid enters the heat exchange channel B142 through the medium inlet 113 to exchange heat with the hot fluid, and after the heat exchange is finished, the hot fluid flows out from the discharge port 112 to the outside, and the cold fluid is discharged to the outside through the medium outlet 114 to complete the recovery of waste heat;
alternatively, the hot fluid enters the heat exchange channel B142 through the waste heat recovery port 111, the cold fluid enters the heat exchange channel a141 through the medium inlet 113 to exchange heat with the hot fluid, and after the heat exchange is completed, the hot fluid flows out from the discharge port 112 to the outside, and the cold fluid is discharged to the outside through the medium outlet 114 to complete the recovery of the waste heat.
Embodiment two:
as shown in fig. 1 to 3 and fig. 5 to 7:
as another implementation of the above embodiment, the heat exchange assembly 14 includes a plurality of heat exchange plates; wherein, the liquid crystal display device comprises a liquid crystal display device,
the heat exchange plate comprises two heat exchange plates which are arranged in parallel, a plurality of protruding parts 143 are arranged on opposite surfaces of the two heat exchange plates, the protruding parts 143 of the two heat exchange plates are mutually abutted, and a gap between the two heat exchange plates is divided into a plurality of heat exchange channels A141;
the surface that two heat transfer pieces deviate from each other all is provided with depressed part 144, and the position of depressed part 144 corresponds with the position of bellying 143, and adjacent two heat transfer boards laminate each other, and the space between the depressed part 144 on the adjacent two heat transfer boards forms heat transfer passageway B142.
The hot fluid enters the heat exchange channel A141 through the waste heat recovery port 111, the cold fluid enters the heat exchange channel B142 through the medium inlet 113 to exchange heat with the hot fluid, and after the heat exchange is finished, the hot fluid flows out from the discharge port 112 to the outside, and the cold fluid is discharged to the outside through the medium outlet 114 to complete the recovery of waste heat;
alternatively, the hot fluid enters the heat exchange channel B142 through the waste heat recovery port 111, the cold fluid enters the heat exchange channel a141 through the medium inlet 113 to exchange heat with the hot fluid, and after the heat exchange is completed, the hot fluid flows out from the discharge port 112 to the outside, and the cold fluid is discharged to the outside through the medium outlet 114 to complete the recovery of the waste heat.
Preferably, the shape of the protruding portion 143 is a regular quadrangular frustum to increase the heat exchange surface of the heating fluid and the cooling fluid, thereby effectively improving the heat exchange efficiency of the waste heat recovery system.
Preferably, all the protruding portions 143 are staggered, so as to increase the flow paths of the hot fluid and the cold fluid in the heat exchange portion 1, and increase the heat exchange time of the hot fluid and the cold fluid, thereby further improving the heat exchange efficiency of the waste heat recovery system.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. A waste heat recovery system characterized by: comprises a heat exchange part (1), a hydraulic pump station (2) and a controller (3);
the heat exchange part (1) is provided with a waste heat recovery port (111), a discharge port (112), a medium inlet (113) and a medium outlet (114), wherein the waste heat recovery port (111) is communicated with the discharge port (112), a temperature sensor A (12) is arranged at the discharge port (112), an opening and closing valve A (13) is arranged at the waste heat recovery port (111), and the medium inlet (113) is communicated with the medium outlet (114);
the outlet of the hydraulic pump station (2) is communicated with the medium inlet (113);
the hydraulic pump station (2), the temperature sensor A (12) and the on-off valve A (13) are in signal connection with the controller (3), and the controller (3) is based on the heat flow temperature after the heat exchange between the hot fluid monitored by the temperature sensor A (12) and the cold fluid, and controls the hydraulic pump station (2) and/or the on-off valve A (13) to enable the heat flow temperature after the heat exchange to be in accordance with the first preset temperature when the heat flow temperature is lower than or higher than the first preset temperature.
2. The waste heat recovery system of claim 1, wherein: the device also comprises a temperature sensor B (21) and an on-off valve B (22), wherein the temperature sensor B (21) is arranged at the medium outlet (114), the on-off valve B (22) is arranged at the inlet of the hydraulic pump station (2), the temperature sensor B (21) and the on-off valve B (22) are both in signal connection with the controller (3), and the controller (3) is used for controlling the hydraulic pump station (2) and/or the on-off valve B (22) to act so that the cold flow temperature after heat exchange accords with the second preset temperature based on the cold flow temperature after heat exchange between the hot fluid and the cold flow fluid monitored by the temperature sensor B (21) when the cold flow temperature is lower than or higher than the second preset temperature.
3. The waste heat recovery system of claim 2, wherein: a filter screen is arranged at the waste heat recovery port (111).
4. A waste heat recovery system as claimed in claim 3, wherein: and a filter (23) is arranged at the inlet of the hydraulic pump station (2).
5. The waste heat recovery system of claim 4, wherein: the heat exchange part (1) comprises a shell (11) and a heat exchange assembly (14); the heat exchange device is characterized in that a heat exchange cavity is arranged in the shell (11), the waste heat recovery port (111), the discharge port (112), the medium inlet (113) and the medium outlet (114) are all arranged on the shell (11), the medium inlet (113) and the medium outlet (114) are all communicated with the heat exchange cavity, the heat exchange assembly (14) is arranged in the heat exchange cavity, and the waste heat recovery port (111) and the discharge port (112) are communicated through the heat exchange assembly (14).
6. The waste heat recovery system of claim 4, wherein: the heat exchange part (1) comprises a shell (11) and a heat exchange assembly (14); the heat exchange device is characterized in that a heat exchange cavity is arranged in the shell (11), the waste heat recovery port (111), the discharge port (112), the medium inlet (113) and the medium outlet (114) are all arranged on the shell (11), the waste heat recovery port (111) and the discharge port (112) are all communicated with the heat exchange cavity, the heat exchange assembly (14) is arranged in the heat exchange cavity, and the medium inlet (113) and the medium outlet (114) are communicated through the heat exchange assembly (14).
7. The waste heat recovery system according to claim 5 or 6, characterized in that: the heat exchange assembly (14) comprises a plurality of heat exchange plates, the cross section of each heat exchange plate is wavy, a heat exchange channel A (141) is arranged in each heat exchange plate, the convex ends of two adjacent heat exchange plates are mutually abutted, and a heat exchange channel B (142) is formed by a gap between the concave ends of two adjacent heat exchange plates.
8. The waste heat recovery system according to claim 5 or 6, characterized in that: the heat exchange assembly (14) comprises a plurality of heat exchange plates, each heat exchange plate comprises two heat exchange plates which are arranged in parallel, a plurality of protruding parts (143) are arranged on opposite surfaces of the two heat exchange plates, the protruding parts (143) of the two heat exchange plates are mutually abutted, and a gap between the two heat exchange plates is divided into a plurality of heat exchange channels A (141);
two the one side that the heat transfer piece deviates from each other all is provided with depressed part (144), the position of depressed part (144) with the position of bellying (143) is corresponding, and two adjacent heat transfer boards laminating each other, two adjacent the space between depressed part (144) on the heat transfer board forms heat transfer passageway B (142).
9. The waste heat recovery system of claim 8, wherein: the shape of the protruding part (143) is a regular quadrangular frustum pyramid.
10. The waste heat recovery system of claim 9, wherein: all the protruding parts (143) are staggered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320008416.2U CN219319130U (en) | 2023-01-03 | 2023-01-03 | Waste heat recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320008416.2U CN219319130U (en) | 2023-01-03 | 2023-01-03 | Waste heat recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219319130U true CN219319130U (en) | 2023-07-07 |
Family
ID=87004909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320008416.2U Active CN219319130U (en) | 2023-01-03 | 2023-01-03 | Waste heat recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219319130U (en) |
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2023
- 2023-01-03 CN CN202320008416.2U patent/CN219319130U/en active Active
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