Air pipe surface heat energy recovery device

Abstract

The utility model provides an air pipe surface heat energy recovery device which comprises a heat energy collection assembly arranged on an air pipe in a sleeved mode, a circulation assembly connected to the heat energy collection assembly, a heat exchanger and a storage assembly, and the heat exchanger and the storage assembly are connected to the circulation assembly. The circulation assembly is used for conveying the heat to the heat exchanger, the heat exchanger converts the heat, and the converted heat is stored in the storage assembly through the circulation assembly; the heat energy collecting device comprises a conduction layer arranged on the outer side of the air pipe in a sleeving mode, a circulation channel arranged on the outer side of the conduction layer in a sleeving mode, heat conduction liquid arranged in the circulation channel and a heat preservation layer arranged on the outer side of the circulation channel in a sleeving mode, and the circulation channel communicates with the circulation assembly. The treatment assembly comprises a conveying pipeline, a heating pipeline connected to the conveying pipeline and a drying area laid on the heating pipeline, and the input cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of heat energy treatment, and particularly relates to a heat energy recovery device for the surface of an air duct. Background Art

[0002] In water treatment processes such as sewage treatment and water purification, aeration is one of the commonly used measures, which is used to inject air into water to increase the dissolved oxygen in the water and achieve the effect of removing pollutants in the water. The aeration device usually includes a fan and an aeration air duct. The fan pressurizes the air and then enters the aeration air duct. However, due to the relatively fast air flow rate in the aeration air duct, a large amount of heat energy will inevitably be generated by the friction between the air in the duct and the duct wall. This part of the heat energy is often ignored and directly dissipated into the environment, resulting in waste of energy.

[0003] In the current conventional practice, only the surface of the air duct is considered to be wrapped with heat insulation materials to prevent the heat energy from being dissipated into the room or causing scalding when people come into contact with the surface of the air duct; however, the heat on the surface of the air duct is not conducted out, but only isolated by the heat insulation materials. After a long time, the performance of the heat insulation materials decreases, and then they need to be replaced, increasing the input cost. Content of the Utility Model

[0004] In order to solve the above technical problems, the utility model provides a heat energy recovery device for the surface of an air duct to solve the problems in the above background art.

[0005] The utility model provides the following technical solutions. A heat energy recovery device for the surface of an air duct includes a heat energy collection component sleeved on the air duct, a circulation component connected to the heat energy collection component, a heat exchanger and a storage component connected to the circulation component. The storage component is connected with a processing component. The heat energy collection component is used to collect the heat of the air duct. The circulation component is used to transport the heat to the heat exchanger. The heat exchanger converts the heat and stores the converted heat in the storage component through the circulation component. The processing component is used to consume the heat stored in the storage component. The heat energy collection includes a conduction layer sleeved outside the air duct, a circulation channel sleeved outside the conduction layer, a heat-conducting liquid arranged in the circulation channel, and a heat insulation layer sleeved outside the circulation channel.

[0006] Compared with the prior art, the beneficial effects of the utility model are as follows: Through the setting of the heat collection component, the heat on the surface of the air duct can be effectively recovered and processed. Thus, compared with the existing technology that requires the use of heat insulation materials and needs to replace the heat insulation materials after a period of time, the input cost is reduced. In addition, through the cooperation of the circulation component, the heat exchanger, the storage component and the treatment component, the heat can be effectively reused. Therefore, not only is the heat on the surface of the air duct fully recovered and utilized, improving the energy utilization rate, but also the environmental heat pollution is reduced, meeting the development trend of low-carbon energy conservation, fully responding to the development concepts of carbon peak and carbon neutrality, and having significant economic and social benefits.

[0007] Further, the circulation component includes a first circulation structure and a second circulation structure. The first circulation structure includes a first circulation pipeline and a first circulation pump connected to the first circulation pipeline. The second circulation structure includes a second circulation pipeline and a second circulation pump connected to the second circulation pipeline. The heat exchanger is connected between the first circulation pipeline and the second circulation pipeline. The first circulation pipeline is connected to the circulation channel, and the second circulation pipeline is connected to the storage component.

[0008] Further, the storage component includes a box body and a partition plate arranged in the box body to divide the interior of the box body into two closed spaces. One of the closed spaces is externally connected to a water inlet pipe and a water inlet switch, and the other closed space is connected to the circulation component.

[0009] Further, the device further includes a monitoring component. The monitoring component includes a control module, an alarm and a plurality of temperature sensors connected to the control module. The temperature sensors are respectively arranged on the surface of the air duct, the inlets and outlets of the heat exchanger, and the circulation component. The temperature sensors are used to monitor the temperature and transmit the temperature to the control module. The control module is used to judge whether the temperature exceeds a first threshold. If it exceeds, the control module controls the alarm to work.

[0010] Further, the control module is connected with a liquid level sensor and a display module. The liquid level sensor is used to detect the liquid level of the storage component and transmit the liquid level to the display module and the control module. The control module is used to judge whether the liquid level is lower than a second threshold. If it is lower, the control module controls the circulation component to work.

[0011] Further, the circulation channel is communicated with the circulation component. The treatment component includes a transportation pipeline, a heating pipeline connected to the transportation pipeline, and a drying area laid on the heating pipeline.

[0012] Further, the heating pipeline is laid in an S shape.

[0013] Further, the heat insulation layer is made of rock wool, polystyrene foam or polyurethane foam, and the conduction layer is made of graphite material. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It shows a schematic structural diagram of the air duct surface heat energy recovery device in the embodiment of the present invention;

[0015] Figure 2 It shows in the embodiment of the present invention Figure 1 an enlarged structural diagram of part A;

[0016] Figure 3 It shows a schematic structural diagram of the monitoring component in the embodiment of the present invention;

[0017] Figure 4 It shows a schematic structural diagram of the multi-processing component in the embodiment of the present invention.

[0018] Main element symbol description: 10, heat energy collection component; 11, conduction layer; 12, circulation channel; 13, heat-conducting liquid; 14, heat insulation layer; 20, circulation component; 21, first circulation structure; 211, first circulation pipeline; 212, first circulation pump; 22, second circulation structure; 221, second circulation pipeline; 222, second circulation pump; 30, heat exchanger; 40, storage component; 41, box body; 42, partition board; 43, enclosed space; 50, processing component; 51, conveying pipeline; 52, heating pipeline; 53, drying area; 60, monitoring component; 61, control module; 62, alarm; 63, temperature sensor; 64, liquid level sensor; 65, display module; 70, air duct; 71, fan.

[0019] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. SPECIFIC EMBODIMENTS

[0020] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

[0021] It should be noted that when an element is said to be "fixedly installed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the specification of this utility model herein are only for the purpose of describing specific embodiments and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] Please refer to Figures 1 to 2 As shown, a surface heat energy recovery device for an air duct 70 in an embodiment of this utility model includes a heat collection component 10 sleeved on the air duct 70, a circulation component 20 connected to the heat collection component 10, a heat exchanger 30 and a storage component 40 connected to the circulation component 20. The storage component 40 is connected with a processing component 50. The heat collection component 10 is used to collect the heat of the air duct 70. The circulation component 20 is used to transport the heat to the heat exchanger 30. The heat exchanger 30 converts the heat and stores the converted heat in the storage component 40 through the circulation component 20. The processing component 50 is used to consume the heat stored in the storage component 40. The heat collection includes a conduction layer 11 sleeved outside the air duct 70, a circulation channel 12 sleeved outside the conduction layer 11, a heat-conducting liquid 13 arranged in the circulation channel 12, and a heat-insulating layer 14 sleeved outside the circulation channel 12. The circulation channel 12 is communicated with the circulation component 20. The processing component 50 includes a transportation pipeline 51, a heating pipeline 52 connected to the transportation pipeline 51, and a drying area 53 laid on the heating pipeline 52.

[0024] Among them, the transportation pipeline 51, the heating pipeline 52 and the drying area 53 are a way of consuming heat of the processing component. The heat can also be used for heating in the sewage treatment plant and its surrounding areas, drying sludge, etc.

[0025] In this embodiment, the heat recovery system of the aeration pipe includes a blower 71 and an aeration pipe. The aeration pipe is connected to the blower 71 to supply air to the reaction tank. The heat collection component 10 is wrapped outside the aeration pipe, and from the inside to the outside are successively the conduction layer 11, the circulation channel 12, and the heat-insulating layer 14. There is a heat-conducting liquid 13 in the circulation channel 12.

[0026] In specific implementation, the heat energy on the aeration pipe is transferred to the heat-conducting liquid 13 through the heat-conducting layer 11 made of graphite, that is, transferred into the circulation channel 12. When the heat-conducting liquid 13 (water) is heated to a certain temperature, it is transferred to the circulation assembly 20. The circulation assembly 20 is used to transport the heat to the heat exchanger 30. The heat exchanger 30 converts the heat, and stores the converted heat into the storage assembly 40 through the circulation assembly 20. The heating pipe 52 of the processing assembly 50 heats the drying area 53 with the heat, so that the sludge on the drying area 53 is dried. It can be seen that through the setting of the heat energy collection assembly 10, the surface heat of the air duct 70 can be effectively recovered and the heat is processed, so that there is no need to use heat insulation materials or replace heat insulation materials, reducing the input cost. In addition, through the cooperation of the circulation assembly 20, the heat exchanger 30, the storage assembly 40 and the processing assembly 50, the heat can be effectively reused, so that not only the surface heat of the air duct 70 is fully recovered and utilized, improving the energy utilization rate, but also the environmental heat pollution is reduced, meeting the development trend of low-carbon energy conservation, fully responding to the development concepts of carbon peak and carbon neutrality, and having significant economic and social benefits.

[0027] Specifically, the circulation assembly 20 includes a first circulation structure 21 and a second circulation structure 22. The first circulation structure 21 includes a first circulation pipe 211 and a first circulation pump 212 connected to the first circulation pipe 211. The second circulation structure 22 includes a second circulation pipe 221 and a second circulation pump 222 connected to the second circulation pipe 221. The heat exchanger 30 is connected between the first circulation pipe 211 and the second circulation pipe 221. The first circulation pipe 211 is connected to the circulation channel 12, and the second circulation pipe 221 is connected to the storage assembly 40.

[0028] In this embodiment, the water circulation channel 12 is made of a heat-conducting material, that is, a heat-conducting water pipe, and the pipeline of the circulation assembly 20 is made of a heat-insulating material, that is, a heat-insulating water pipe. The water circulation channel 12 and the first circulation structure 21 form a closed pipeline, on which a heat fluid circulation pump (the first circulation pump 212) and a heat exchanger 30 are connected. Under the action of the heat fluid circulation pump, the water in the first circulation pipe 211 circulates, and the temperature of the water heated by the aeration pipe is collected through the heat exchanger 30 and transferred to the heat energy recovery fluid circulation pipe (the second circulation pipe 221). The water in the second circulation pipe 221 can be the effluent treated by the sewage treatment plant.

[0029] Specifically, the storage assembly 40 includes a box body 41 and a partition plate 42 arranged in the box body 41 to divide the interior of the box body 41 into two closed spaces 43. One of the closed spaces 43 is externally connected to a water inlet pipe and a water inlet switch, and the other closed space 43 is connected to the circulation assembly 20.

[0030] In this embodiment, one end of the heat energy recovery fluid circulation pipe is connected to the heat exchanger 30 and the other end is connected to the heat energy storage component 40 (i.e., hot water storage, achieved by heating water). The storage component 40 has two separated enclosed spaces 43, one is a hot water chamber and the other is a cold water chamber. The cold water chamber is externally connected to a water inlet pipe and a water inlet switch, and a water inlet pump is set when necessary. The effluent or tap water from the sewage treatment plant is introduced through the water inlet pipe. A heat energy recovery fluid circulation pump is installed on the heat energy recovery fluid circulation pipe, and water is contained in the heat energy recovery fluid circulation pipe. Driven by the heat energy recovery fluid circulation pump, the hot water heated by the heat exchanger 30 is stored in the hot water chamber of the hot water storage device, and the water in the cold water chamber is returned to the heat exchanger 30 to be heated continuously.

[0031] Please refer to Figure 3 As shown, further, in order to facilitate monitoring the operating state of the entire device, the device further includes a monitoring component 60. The monitoring component 60 includes a control module 61, an alarm 62 connected to the control module 61, and a plurality of temperature sensors 63. The temperature sensors 63 are respectively arranged on the surface of the air duct 70, the inlet and outlet of the heat exchanger 30, and the circulation component 20. The temperature sensors 63 are used to monitor the temperature and transmit the temperature to the control module 61. The control module 61 is used to judge whether the temperature exceeds a first threshold. If it exceeds, the control module 61 controls the alarm 62 to perform the alarm work. It can monitor the water temperature, the surface temperature of the air duct 70, and the inlet and outlet temperatures of the heat exchanger 30, detect abnormal situations and control the operation of the entire heat energy recovery system.

[0032] Further, in order to monitor the water level, the control module 61 is connected to a liquid level sensor 64 and a display module 65. The liquid level sensor 64 is used to detect the liquid level of the storage component 40 and transmit the liquid level to the display module 65 and the control module 61. The control module 61 is used to judge whether the liquid level is lower than a second threshold. If it is lower, the control module 61 controls the circulation component 20 to work. In this embodiment, a liquid level gauge is set in the hot water chamber and the cold water chamber to detect the water volume. If the water level in the cold water chamber is lower than the lowest liquid level, the water inlet switch is opened (the water inlet pump is opened when necessary) to start water inlet, and the water inlet stops when the full liquid level is reached. If the water level in the hot water chamber is lower than the lowest liquid level, the valve is closed to stop supplying hot water outward.

[0033] Please refer to Figure 4As shown in the figure, further, in order to increase the heating effect of the drying area 53, the heating pipeline 52 is laid in an S shape. Through the S-shaped arrangement, more heating pipelines 52 can be effectively arranged in the drying area 53 with a fixed area, thereby improving the heating effect. In this embodiment, according to the existing situation of the sewage treatment plant, the heat can be used to perform low-temperature drying on the concentrated sludge to further reduce the moisture content in the sludge. The transportation pipeline 51 is connected to the hot water room of the storage component 40. The sludge can be dried by spreading it flat above the drying area 53. Multiple layers can also be laid. Through the drying area 53, without affecting the basic function of the fan 71 to aerate and supply oxygen to the bottom of the pool, not only the heat on the surface of the air duct 70 is fully recovered and utilized, improving the energy utilization rate, but also the environmental heat pollution is reduced, meeting the development trend of low-carbon energy conservation, fully responding to the development concepts of carbon peak and carbon neutrality, and having significant economic and social benefits.

[0034] In this embodiment, the conduction layer 11 is made of graphite. Optionally, the insulation layer 14 is rock wool, polystyrene foam or polyurethane foam. Preferably, the insulation layer 14 is rock wool.

[0035] In summary, for the surface heat energy recovery device of the air duct 70 in the above embodiments of the present utility model, the heat energy on the aeration pipe is transmitted to the heat-conducting liquid 13 through the heat conduction layer 11 made of graphite, that is, transmitted into the circulation channel 12. When the heat-conducting liquid 13 (water) is heated to a certain temperature, it is transmitted to the circulation component 20. The circulation component 20 is used to transport the heat to the heat exchanger 30. The heat exchanger 30 converts the heat, and stores the converted heat in the storage component 40 through the circulation component 20. The heating pipeline 52 of the processing component 50 heats the drying area 53 with the heat, so that the sludge on the drying area 53 is dried. It can be seen that through the setting of the heat energy collection component 10, the heat on the surface of the air duct 70 can be effectively recovered and the heat is processed. Therefore, compared with the existing situation where heat insulation materials are needed and the heat insulation materials need to be replaced after a period of time, the input cost is reduced. In addition, through the cooperation of the circulation component 20, the heat exchanger 30, the storage component 40 and the processing component 50, the heat can be effectively reused. Thus, not only the heat on the surface of the air duct 70 is fully recovered and utilized, improving the energy utilization rate, but also the environmental heat pollution is reduced, meeting the development trend of low-carbon energy conservation, fully responding to the development concepts of carbon peak and carbon neutrality, and having significant economic and social benefits.

[0036] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] The above-described embodiments only express several implementation manners of the present utility model. Their descriptions are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A heat recovery device for air duct surface, characterized in that: It includes a heat energy collection component sleeved on an air duct, a circulation component connected to the heat energy collection component, and a heat exchanger and a storage component connected to the circulation component. The storage component is connected to a processing component. The heat energy collection component is used to collect heat from the air duct. The circulation component is used to transport the heat to the heat exchanger. The heat exchanger converts the heat and stores the converted heat in the storage component through the circulation component. The processing component is used to consume the heat stored in the storage component. The heat energy collection includes a conduction layer sleeved on the outside of the air duct, a circulation channel sleeved on the outside of the conduction layer, a heat-conducting liquid arranged in the circulation channel, and a thermal insulation layer sleeved on the outside of the circulation channel.

2. The duct surface heat recovery device according to claim 1, characterized in that: The circulation component includes a first circulation structure and a second circulation structure, the first circulation structure includes a first circulation pipe and a first circulation pump connected to the first circulation pipe, the second circulation structure includes a second circulation pipe and a second circulation pump connected to the second circulation pipe, the heat exchanger is connected between the first circulation pipe and the second circulation pipe, the first circulation pipe is connected to the circulation channel, and the second circulation pipe is connected to the storage component.

3. The duct surface heat recovery device according to claim 1, characterized in that: The storage component includes a box body and a partition plate arranged in the box body to divide the interior of the box body into two closed spaces, one of which is externally connected to a water inlet pipe and a water inlet switch, and the other closed space is connected to the circulation component.

4. The duct surface heat recovery device according to claim 1, characterized in that: The device also includes a monitoring component, which includes a control module, an alarm connected to the control module, and multiple temperature sensors. The temperature sensors are respectively provided on the surface of the air duct, the inlet and outlet of the heat exchanger, and the circulation component. The temperature sensor is used to monitor the temperature and transmit the temperature to the control module. The control module is used to determine whether the temperature exceeds a first threshold value. If so, the alarm is controlled to perform an alarm operation.

5. The duct surface heat recovery device according to claim 4, characterized in that: The control module is connected to a liquid level sensor and a display module. The liquid level sensor is used to detect the liquid level of the storage component and transmit the liquid level to the display module and the control module. The control module is used to determine whether the liquid level is lower than a second threshold value. If so, the control module controls the circulation component to operate.

6. The duct surface heat recovery device according to claim 1, characterized in that: The circulation channel is communicated with the circulation component, and the processing component includes a transportation pipeline, a heating pipeline connected to the transportation pipeline, and a drying area laid on the heating pipeline.

7. The duct surface heat recovery device according to claim 6, characterized in that: The heating pipeline is laid in an S shape.

8. The duct surface heat recovery device according to claim 1, characterized in that: The thermal insulation layer is made of rock wool, polystyrene foam or polyurethane foam, and the conductive layer is made of graphite.

Images