Heat recovery system

By designing a heat recovery system and using the exhaust gas of RTO equipment for heat exchange, the problem of heat loss of waste gas in RTO equipment is solved, and the heating and dehumidification treatment of the air conditioner is realized, energy saving and indoor drying are reduced.

CN222799753UActive Publication Date: 2025-04-25ZHEJIANG RIJIU NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202420722049.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-09
Publication Date
2025-04-25
Estimated Expiration
2034-04-09

AI Technical Summary

Technical Problem

After the existing RTO equipment is treated with exhaust gas, heat is discharged directly through the chimney, resulting in heat loss, which is inconvenient for heat recovery. Especially in winter, the air conditioner room is dry and difficult to humidify.

Method used

A heat recovery system is designed, including an RTO heat recovery device, a steam condensate heat recovery system and a rainwater collection device. It exchanges heat with the exhaust gas of the RTO equipment through the heat exchange pipeline and provides it to the air-conditioning unit for heating and dehumidification treatment.

Benefits of technology

The heating and dehumidification treatment of the air conditioner is realized, energy saving, indoor air drying in winter, and humidified steam is saved, especially in areas near the RTO equipment, which can efficiently utilize the thermal energy in the exhaust gas.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a heat recovery system which is arranged on one side of RTO gas equipment, an RTO heat recovery device is arranged on one side of the RTO gas equipment, the heat recovery system comprises a heat preservation device, the heat recovery system further comprises an RTO heat recovery system and a steam condensation water heat recovery system, the RTO heat recovery system comprises a heat exchange pipeline, and the steam condensation water heat recovery system comprises a steam condensation water heat recovery system. The heat exchange pipeline is used for exchanging heat with water in the heat preservation device, the steam condensation water heat recovery system comprises a steam pipeline, the steam pipeline comprises a first steam output pipe, a second steam output pipe is arranged on the first steam output pipe, the first steam output pipe is used for conveying hot steam to the air conditioning unit, and the second steam output pipe is used for conveying hot steam to the heat preservation device. The second steam output pipe is used for conveying hot steam to water in the heat preservation device. Compared with the prior art, the heat recovery system has the advantages that the air conditioner can be conveniently heated and dehumidified, energy is saved, and the situation that indoor air is dry in winter is reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of heat recovery and utilization, and specifically relates to a heat recovery system. Background Art

[0002] The RTO equipment is a regenerative thermal oxidizer, which is an organic waste gas treatment equipment with high thermal efficiency, low operating cost, and the ability to treat large air volume and low concentration waste gas.

[0003] Although the existing RTO equipment can efficiently treat exhaust gas, the heat from the treated exhaust gas is directly discharged through the chimney, resulting in heat loss and inconvenient to utilize. In particular, it is aimed at heat recovery of air conditioners in public buildings such as factory buildings, dormitory areas, and nearby communities in the RTO equipment plant area. In addition, it is not convenient to humidify the air conditioners in public buildings such as factory buildings, dormitory areas, and nearby communities in the factory area in winter, which makes the indoor air conditioner relatively dry. In order to solve the above problems, a heat recovery system is proposed.

[0004] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0005] The purpose of the utility model is to provide a heat recovery system, which is convenient for heating and dehumidifying the air conditioner, saving energy, reducing the dryness of indoor air in winter, and saving humidifying steam, especially for the area near the RTO equipment, which can exchange heat with the exhaust gas discharged by the RTO equipment to provide thermal energy for the air conditioner heat exchange.

[0006] In order to achieve the above purpose, the technical solution provided by a specific embodiment of the utility model is as follows:

[0007] A heat recovery system, the heat recovery system is arranged on one side of an RTO gas equipment, an RTO heat recovery device is arranged on one side of the RTO gas equipment, the heat recovery system includes a heat preservation device, the heat recovery system also includes an RTO heat recovery system and a steam condensate heat recovery system, the RTO heat recovery system includes a heat exchange pipeline, the heat exchange pipeline is used to exchange heat with water in the heat preservation device, the steam condensate heat recovery system includes a steam pipeline, the steam pipeline includes a first steam output pipe, a second steam output pipe is arranged on the first steam output pipe, the first steam output pipe is used to transport hot steam to an air-conditioning unit, and the second steam output pipe is used to transport hot steam to water in the heat preservation device.

[0008] In one or more embodiments of the present invention, the heat recovery system further comprises a rainwater collection device, which is used to collect rainwater. Water can be added to the heat preservation device and the temperature of the water in the heat preservation device can be adjusted through the rainwater collection device.

[0009] In one or more embodiments of the present invention, the rainwater collection device includes an outdoor water tank, an overflow pipe for preventing overflow is arranged on one side of the outdoor water tank, a sewage pipe for sewage discharge is arranged at the lower end of the outdoor water tank, and a water output pipe is arranged on one side of the outdoor water tank.

[0010] In one or more embodiments of the present invention, the first steam output pipe and the first condensate output pipe are both provided with a first condensate output pipe, and the first condensate output pipe is used to discharge steam condensate in the first steam output pipe and the second steam output pipe.

[0011] In one or more embodiments of the present invention, one end of the second steam output pipe is located inside the heat preservation device, and a plurality of output holes are evenly formed on the second steam output pipe.

[0012] In one or more embodiments of the present invention, a heat output pipeline is connected between the heat preservation device and the high-pressure micro-object humidification module and the heat recovery coil.

[0013] In one or more embodiments of the present invention, a first horizontal tube is provided on one side of the heat preservation device, the first horizontal tube is communicated with the heat preservation device, and the heat output pipeline and the heat exchange pipeline are both communicated with the first horizontal tube.

[0014] In one or more embodiments of the present invention, a circulation pipeline is connected between the insulation device and the air-conditioning unit, and the circulation pipeline transports the hot water in the insulation device to the air-conditioning unit for heat exchange, and transports the hot water after the heat exchange back to the insulation device.

[0015] In one or more embodiments of the present invention, an insulation board is provided in the insulation device, and the insulation board divides the insulation device into a first cavity and a second cavity. The first cavity is used to hold water at 55 to 65°C, and the second cavity is used to hold water at 65 to 70°C. The first cavity and the second cavity are connected.

[0016] In one or more embodiments of the present invention, a first temperature sensor is installed on a side wall of the first cavity, and a second temperature sensor is installed on a side wall of the second cavity.

[0017] Compared with the prior art, the heat recovery system of the utility model is convenient for heating and dehumidifying the air conditioner, saving energy, reducing the dryness of indoor air in winter, and saving humidifying steam, especially for the area near the RTO equipment, and can exchange heat with the exhaust gas discharged by the RTO equipment to provide heat energy for the air conditioner heat exchange. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] 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 recorded in the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is a structural schematic diagram of a heat recovery system in one embodiment of the utility model;

[0020] Figure 2 A schematic diagram of the local structure of a heat recovery system in one embodiment of the utility model Figure 1 ;

[0021] Figure 3 A schematic diagram of the local structure of a heat recovery system in one embodiment of the utility model Figure 2 ;

[0022] Figure 4 A schematic diagram of the local structure of a heat recovery system in one embodiment of the utility model Figure 3 ;

[0023] Figure 5 A schematic diagram of the local structure of a heat recovery system in one embodiment of the utility model Figure 4 ;

[0024] Figure 6 This is a schematic structural diagram of a rainwater collection device in one embodiment of the utility model;

[0025] Figure 7 This is a schematic structural diagram of the first steam output pipe in one embodiment of the utility model.

[0026] Description of main reference numerals:

[0027] 1. RTO gas equipment; 2. RTO heat recovery device; 3. Steam pipeline; 301. First steam output pipe; 302. Second steam output pipe; 3021. Output hole; 303. First condensate output pipe; 304. Flow valve; 4. Rainwater collection device; 401. Outdoor water tank; 402. Overflow pipe; 403. Water output pipe; 404. Drain pipe; 5. Insulation device; 6. Heat exchange pipeline; 601. Heat exchange main pipe; 6011. First return pipe; 6012. Second return pipe; 602. Heat exchange branch pipe; 603. First water pump; 7. Heat output pipeline; 701. Heat output main pipe; 702. Third heat output branch pipe; 703, second water pump; 8, circulation pipeline; 801, circulation main pipe; 8011, bypass pipe; 8012, third return pipe; 802, circulation branch pipe; 803, third water pump; 9, air conditioning unit; 10, condensate drain pipe; 11, high-pressure micro-humidification module; 1101, first drain pipe; 12, heat recovery coil; 1201, second drain pipe; 13, first horizontal pipe; 14, second horizontal pipe; 15, first temperature sensor; 16, second temperature sensor; 17, heat insulation board; 18, third temperature sensor; 19, fourth temperature sensor; 20, air conditioner body; 2001, third drain pipe; 21, air inlet. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0029] like Figure 1 As shown, a heat recovery system in one embodiment of the utility model includes a heat preservation device 5, and hot water is installed in the heat preservation device 5. The hot water in the heat preservation device 5 can exchange heat with the air conditioning unit 9. The hot water in the heat preservation device 5 can also exchange heat with the high-pressure micro-object humidification module 11 and the heat recovery coil 12. At the same time, the heat preservation device 5 can also provide a water source to the high-pressure micro-object humidification module 11, and the water source performs heating and humidification operations on the high-pressure micro-object humidification module 11. When the hot water in the heat preservation device 5 exchanges heat with the air conditioning unit 9, the energy consumption of the air conditioning unit 9 can be reduced while not affecting the normal heating of the air conditioning unit 9. When the hot water in the heat preservation device 5 exchanges heat with the heat recovery coil 12, the heat recovery coil 12 can heat the air inlet. When the air enters the room, the wind exchanges heat with the heat recovery coil 12, so that the incoming air is hot air with a certain temperature, realizing the recovery and utilization of thermal energy.

[0030] like Figure 1 As shown, the heat recovery system also includes a steam pipeline 3, which can provide heat to the air conditioning unit 9 and the room, and can also heat the water in the heat preservation device 5. Since there is a certain amount of water in the steam, the steam is formed by water vaporization. When the steam heats the water in the heat preservation device 5 in a jet heating manner, it can heat the water and also supplement the water in the heat preservation device 5 to a certain extent, thereby realizing the recovery and utilization of heat energy.

[0031] Specifically, Figure 2 to Figure 4 As shown, the air conditioning unit 9 includes a plurality of air conditioning machine bodies 20, and the steam pipeline 3 includes a first steam output pipe 301 and a second steam output pipe 302. The first steam output pipe 301 can transport steam to the air conditioning machine body 20, and the air conditioning machine body 20 performs heat exchange with the heat of the steam. After the water vapor is condensed, it forms water droplets and is finally discharged from the third drain pipe 2001. The end of the third drain pipe 2001 away from the air conditioning machine body 20 is connected to the condensate drain pipe 10, and the condensate drain pipe 10 finally discharges the condensed water to the outdoor rainwater ditch. A first valve is also provided between the third drain pipe 2001 and the condensate drain pipe 10, and the first valve can be used to control whether the rainwater in the third drain pipe 2001 is discharged.

[0032] like Figure 2 As shown, one end of the second steam output pipe 302 is located inside the heat preservation device 5. The heat preservation device 5 can be specifically a heat preservation water tank. A heat insulation board 17 is arranged inside the heat preservation device 5. The heat insulation board 17 divides the space inside the heat preservation device 5 into a first cavity and a second cavity. The first cavity and the second cavity are both used to hold hot water. The first cavity is used to hold water at 55 to 65°C, and the second cavity is used to hold water at 65 to 70°C. The first cavity and the second cavity are connected. The heat preservation device 5 is provided with a first temperature sensor 15 and a second temperature sensor 16 that match the first cavity and the second cavity. The first temperature sensor 15 is used to detect the temperature in the first cavity, and the second temperature sensor 16 is used to detect the temperature in the second cavity. When the first temperature sensor 15 or the second temperature sensor 16 detects that the temperature of the water in the insulation device 5 does not meet the standard, steam is transported to the insulation device 5 through the second steam output pipe 302, and the water is heated by spraying steam outwardly toward the middle and lower parts of the water in the insulation device 5. The steam can also turn into water when it comes into contact with the water, thereby increasing the amount of water in the insulation device 5.

[0033] like Figure 2As shown, the first steam output pipe 301 and the second steam output pipe 302 are both provided with a first condensate output pipe 303, and the first condensate output pipe 303 is used to discharge the condensed water in the first steam output pipe 301 and the second steam output pipe 302. The first steam output pipe 301 and the second steam output pipe 302 are also provided with a flow valve 304, and the flow valve 304 is used to record the flow of the first steam output pipe 301 and the second steam output pipe 302.

[0034] like Figure 7 As shown, a plurality of output holes 3021 are evenly formed on the second steam output pipe 302, and the output holes 3021 are located inside the heat preservation device 5, and are used to heat and replenish the hot water in the heat preservation device 5. The output holes 3021 can spray steam evenly.

[0035] like Figure 1 , Figure 2 , Figure 6 As shown, the heat recovery system also includes a rainwater collecting device 4, which can collect rainwater. The rainwater collecting device 4 includes an outdoor water tank 401. The outdoor water tank 401 is an expansion water tank. The outdoor water tank 401 is used to store rainwater. An overflow pipe 402 is also provided on the upper part of the outdoor water tank 401. The overflow pipe 402 can prevent rainwater from overflowing from the opening of the outdoor water tank 401. When the amount of rainwater in the outdoor water tank 401 reaches a certain amount, water continues to be added to the outdoor water tank 401, and water will flow out from the overflow pipe 402 to prevent water from overflowing from the opening of the outdoor water tank 401.

[0036] The overflow pipe 402 is also provided with a second valve, and the second valve is used to close or open the overflow pipe 402. The second valve is generally in an open state.

[0037] like Figure 6 As shown, a water output pipe 403 is connected between the outdoor water tank 401 and the insulation device 5. The rainwater in the outdoor water tank 401 can enter the interior of the insulation device 5 through the water output pipe 403 to replenish the water in the insulation device 5. Since the water stored in the outdoor water tank 401 is generally cold water, or water matching the outdoor temperature, there is a certain difference in temperature between the water and the hot water in the insulation device 5. When the temperature of the hot water in the insulation device 5 is too high, the water in the outdoor water tank 401 can cool down the hot water in the insulation device 5.

[0038] like Figure 6As shown, a sewage pipe 404 is also provided on the outdoor water tank 401. The sewage pipe 404 is used when cleaning the outdoor water tank 401 and is used for sewage discharge. A third valve is provided on the water output pipe 403, and a fourth valve is provided on the sewage pipe 404. The third valve and the fourth valve are both used to control the on-off of the water output pipe 403 and the sewage pipe 404. Generally, the fourth valve on the sewage pipe 404 is opened only when cleaning the outdoor water tank 401 to discharge sewage, and the third valve on the water output pipe 403 is opened when conveying water to the heat preservation device 5.

[0039] That is, the hot water in the heat preservation device 5 can be heated through the steam pipeline 3, and the hot water in the heat preservation device 5 can be cooled through the rainwater collection device 4. The steam pipeline 3 and the heat preservation device 5 can increase the amount of water in the heat preservation device 5 while heating and cooling.

[0040] like Figure 1-2 As shown, during the use of the RTO gas equipment 1, a large amount of hot exhaust gas will be generated. The hot exhaust gas is directly discharged after being treated, which will cause a large amount of energy waste. Therefore, an RTO heat recovery device 2 is provided on one side of the RTO gas equipment 1. A heat exchange pipeline 6 is connected between the RTO heat recovery device 2 and the insulation device 5. The hot water in the insulation device 5 can be circulated through the heat exchange pipeline 6 to realize the circulation heating of the hot water in the insulation device 5, and at the same time, heat energy is recovered from the hot exhaust gas discharged by the RTO heat recovery device 2.

[0041] Specifically, Figure 2 As shown, one side of the heat preservation device 5 is connected with a first horizontal pipe 13, and the first horizontal pipe 13 is used to install and connect different pipes. The heat exchange pipeline 6 includes a heat exchange main pipe 601, one end of the heat exchange main pipe 601 is connected with the first horizontal pipe 13, and a plurality of heat exchange branch pipes 602 are installed in the middle of the heat exchange main pipe 601. The plurality of heat exchange branch pipes 602 are all provided with a first water pump 603. The first water pump 603 can pump the hot water in the first cavity to the inside of the RTO heat recovery device 2, and exchange heat with the RTO heat recovery device 2. The hot water after heat exchange is transported back to the first cavity through the heat exchange main pipe 601. The hot water after heat exchange is generally around 70°C. The plurality of heat exchange branch pipes 602 can speed up the speed of extracting hot water from the first cavity, and at the same time, can increase the speed of hot water flowing in the heat exchange main pipe 601. In addition, when one of the first water pumps 603 is damaged, the other first water pump 603 can be used normally, which can ensure that during the maintenance process, the heat exchange pipeline 6 can normally transport the hot water in the first cavity and perform heat exchange.

[0042] The heat exchange pipeline 6 can continuously exchange heat with the RTO heat recovery device 2 to ensure the temperature of the water in the insulation device 5 for a long time.

[0043] like Figure 2As shown, a third temperature sensor 18 is installed on the return pipe of the heat exchange main pipe 601. The third temperature sensor 18 is used to determine the temperature of the water in the return pipe of the heat exchange main pipe 601. The third temperature sensor 18 controls whether the water in the return pipe of the heat exchange main pipe 601 is transported to the first cavity or continues to exchange heat. This avoids the situation where the water in the return pipe of the heat exchange main pipe 601 does not meet the temperature standard and is transported to the second cavity, affecting the temperature of the water in the second cavity.

[0044] Specifically, the heat exchange main pipe 601 is provided with a first return pipe 6011 and a second return pipe 6012, and the second return pipe 6012 is connected to the second cavity. When the water in the return pipe of the heat exchange main pipe 601 exceeds or equals to 70°C, the water in the return pipe of the heat exchange main pipe 601 will be transported to the second cavity through the second return pipe 6012. When the water in the return pipe of the heat exchange main pipe 601 is lower than 70°C, the water in the return pipe of the heat exchange main pipe 601 is transported to the first horizontal pipe 13 through the first return pipe 6011, and the first horizontal pipe 13 then selects to transport the water. That is, the heat exchange of water in the RTO heat recovery device 2 and the insulation device 5 can be realized through the second temperature sensor 16, and the water in the insulation device 5 is heated by the heat of the RTO heat recovery device 2 to realize the recovery and utilization of heat energy.

[0045] like Figure 1-2 As shown, the first horizontal pipe 13 is also connected to a heat output pipeline 7, which is used to transport hot water to the high-pressure micro-object humidification module 11 and the heat recovery coil 12. The high-pressure micro-object humidification module 11 can exchange heat with the hot water. At the same time, the hot water can humidify the high-pressure micro-object humidification module 11, and the heat recovery coil 12 can exchange heat with the hot water. When air enters from the air inlet 21, the air contacts the heat recovery coil 12 or the high-pressure micro-object humidification module 11, thereby heating or humidifying the air.

[0046] Specifically, the heat output pipeline 7 includes a heat output main pipe 701, which is connected to the first horizontal pipe 13, and the hot water in the first cavity is transported to the high-pressure micro-object humidification module 11 or the heat recovery coil 12 through the heat output main pipe 701. The middle part of the heat output main pipe 701 is connected with multiple groups of third heat output branch pipes 702, and the multiple groups of third heat output branch pipes 702 and the heat output main pipe 701 are connected in parallel. The third heat output branch pipe 702 is provided with a second water pump 703, and the water in the first cavity can be pumped into the heat output main pipe 701 through the second water pump 703, and the water is transported to the high-pressure micro-object humidification module 11 or the heat recovery coil 12 through the heat output main pipe 701. By providing multiple third heat output branch pipes 702, when one of the third heat output branch pipes 702 is blocked, the other third heat output branch pipes 702 can still be used normally. When one of the second water pumps 703 is damaged, the other second water pump 703 can continue to be used. During the repair of the second water pump 703 and the third heat output branch pipe 702, it is possible to avoid downtime for repairs, which would affect indoor heating.

[0047] Furthermore, an air enthalpy sensor is provided at the air inlet 21 , and the heat output main pipe 701 transports water to the high-pressure micro-object humidification module 11 or the heat recovery coil 12 based on the data detected by the air enthalpy sensor. When the air enthalpy value detected by the air enthalpy value sensor is less than 32.69 kj / kg, the winter working condition is switched, and the water in the heat output main pipe 701 will be transported to the high-pressure micro-object humidification module 11. The water is also used to humidify the high-pressure micro-object humidification module 11. When the air enthalpy value sensor arranged in the air-conditioning chamber detects that the air enthalpy value is ≥32.69 kj / kg, the humidification is stopped, and the water in the heat output main pipe 701 is transported to the heat recovery coil 12. The heat recovery coil 12 exchanges heat with the water to realize the heating operation. By setting a heat output pipeline 7 between the insulation device 5 and the high-pressure micro-object humidification module 11 and the heat recovery coil 12, and realizing the switching of the passage for transporting hot water to the high-pressure micro-object humidification module 11 and the heat recovery coil 12 through the air enthalpy value sensor, 1 ton of steam used for humidification can be saved per hour.

[0048] The heat output pipeline 7 is opened when the liquid level in the heat preservation device 5 is high.

[0049] like Figure 5 As shown, the lower end of the high-pressure micro-object humidification module 11 is connected to a first drain pipe 1101, and the lower end of the heat recovery coil 12 is connected to a second drain pipe 1201. The first drain pipe 1101 and the second drain pipe 1201 are both connected to the condensate drain pipe 10. The condensate drain pipe 10 discharges the wastewater used by the high-pressure micro-object humidification module 11 and the heat recovery coil 12 to the outdoor drain ditch.

[0050] like Figure 2As shown, the end of the insulation device 5 away from the first horizontal pipe 13 is connected to the first temperature sensor 15, the second horizontal pipe 14 is connected to the circulation pipeline 8, and the end of the third temperature sensor 18 away from the insulation device 5 is connected to the air-conditioning unit 9. The third temperature sensor 18 can transport the hot water in the second chamber to the air-conditioning unit 9. The air-conditioning unit 9 performs heat exchange with 70°C. After the heat exchange is completed, the hot water temperature is about 60°C, and 60°C is then transported back to the first chamber through the circulation pipeline 8 for storage. The hot water in the first chamber then exchanges heat with the heat recovery coil 12 to realize the recovery and utilization of heat energy, while also ensuring the normal use of the air-conditioning unit 9.

[0051] Specifically, Figure 3-4 As shown, the circulation pipeline 8 includes a circulation main pipe 801, and hot water is transported to the air conditioning unit 9 through the circulation main pipe 801. A plurality of circulation branches 802 are arranged at one end of the circulation main pipe 801, and a third water pump 803 is arranged on the circulation branch pipe 802. The plurality of circulation branches 802 and the third water pump 803 can both play the role of transporting hot water. The plurality of circulation branches 802 and the third water pump 803 can prevent the third water pump 803 from having problems, thereby causing the circulation pipeline 8 to be unable to transport hot water normally. The cooperation of the plurality of circulation branches 802 and the third water pump 803 can also speed up the flow rate of hot water.

[0052] like Figure 3-4 As shown, a third return pipe 8012 is provided at one end of the circulation main pipe 801, and the third return pipe 8012 is connected to the first chamber. When the circulation pipeline 8 transports hot water to the air-conditioning unit 9, the hot water is transported to the third return pipe 8012 through the circulation main pipe 801, and the third return pipe 8012 transports the liquid to the first chamber.

[0053] like Figure 3 As shown, a bypass pipe 8011 is connected between the output pipe and the return pipe of the circulation main pipe 801. The bypass pipe 8011 is opened when the air conditioning unit 9 does not need hot water, and the hot water in the output pipe of the circulation main pipe 801 is directly transported to the return pipe of the circulation main pipe 801. At the same time, it can also avoid stopping the hot water delivery and causing damage to the pipeline, the air conditioning unit 9 and other equipment.

[0054] like Figure 3 As shown, a fourth temperature sensor 19 is also provided on the circulation main pipe 801 , and the fourth temperature sensor 19 is used to detect the temperature of the hot water outputted from the circulation main pipe 801 .

[0055] When in use, the RTO gas equipment 1 generates waste gas, which is discharged after being processed by the RTO heat recovery device 2. The heat preservation device 5 can exchange heat with the waste gas discharged by the RTO heat recovery device 2 through the heat exchange pipeline 6 to realize the recovery of heat energy. The steam pipeline 3 continuously delivers steam to the air conditioning unit 9, and the steam provides water and heating to the air conditioning unit 9. At the same time, the steam in the steam pipeline 3 can also be delivered to the inside of the heat preservation device 5 through the second steam output pipe 302, which is used to heat up the hot water in the heat preservation device 5 and provide water. By setting the heat output pipeline 7, the water in the heat preservation device 5 can be delivered to the high-pressure micro-object humidification module 11 and the heat recovery coil 12. When the heat output pipeline 7 delivers hot water to the high-pressure micro-object humidification module 11, the high-pressure micro-object humidification module 11 can be heated and the high-pressure micro-object humidification module 11 can be humidified, so that the wind at the air inlet 21 can carry a certain amount of moisture, so as to achieve humidified air and prevent the air from drying out. When the heat output pipeline 7 delivers hot water to the heat recovery coil 12, the heat recovery coil 12 can exchange heat with the hot water, and the heat recovery coil 12 is heated, and the air entering the air inlet 21 can have a certain temperature. After being delivered to the high-pressure micro-object humidification module 11 and the heat recovery coil 12 for heat exchange, it will eventually enter the condensate drain pipe 10, and the condensate drain pipe 10 will discharge the heat-exchanged water to the outdoor rainwater ditch.

[0056] Among them, the circulation pipeline 8 can transport the hot water in the second chamber to the air-conditioning unit 9 for heat exchange, and the water after heat exchange is transported to the first chamber hole. The hot water in the first chamber then exchanges heat with the RTO heat recovery device 2 through the heat exchange pipeline 6 to achieve heat recovery and utilization.

[0057] It is obvious 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 features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0058] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A heat recovery system, wherein the heat recovery system is arranged on one side of an RTO gas equipment, and an RTO heat recovery device is arranged on one side of the RTO gas equipment, characterized in that: The heat recovery system includes a heat preservation device, and the heat recovery system also includes an RTO heat recovery system and a steam condensate heat recovery system. The RTO heat recovery system includes: A heat exchange pipeline, wherein the heat exchange pipeline is used to exchange heat with water in the heat preservation device; The steam condensate heat recovery system comprises: The steam pipeline comprises a first steam output pipe, on which a second steam output pipe is arranged, the first steam output pipe is used to transport hot steam to the air-conditioning unit, and the second steam output pipe is used to transport hot steam to water in the heat preservation device.

2. A heat recovery system according to claim 1, characterized in that: The heat recovery system further comprises a rainwater collecting device, which is used to collect rainwater. Water can be added to the heat preservation device and the temperature of the water in the heat preservation device can be adjusted through the rainwater collecting device.

3. A heat recovery system according to claim 2, characterized in that: The rainwater collection device comprises an outdoor water tank, an overflow pipe for preventing overflow is arranged on one side of the outdoor water tank, a sewage pipe for sewage discharge is arranged at the lower end of the outdoor water tank, and a water output pipe is arranged on one side of the outdoor water tank.

4. A heat recovery system according to claim 1, characterized in that: The first steam output pipe and the first condensate output pipe are both provided with a first condensate output pipe, and the first condensate output pipe is used to discharge the steam condensate in the first steam output pipe and the second steam output pipe.

5. A heat recovery system according to claim 1 or 4, characterized in that: One end of the second steam output pipe is located inside the heat preservation device, and a plurality of output holes are evenly formed on the second steam output pipe.

6. A heat recovery system according to claim 1, characterized in that: A heat output pipeline is connected between the heat preservation device, the high-pressure micro-object humidification module, and the heat recovery coil.

7. A heat recovery system according to claim 6, characterized in that: A first horizontal tube is arranged on one side of the heat preservation device, the first horizontal tube is communicated with the heat preservation device, and the heat output pipeline and the heat exchange pipeline are both communicated with the first horizontal tube.

8. A heat recovery system according to claim 1, characterized in that: A circulation pipeline is connected between the heat preservation device and the air conditioning unit. The circulation pipeline transports the hot water in the heat preservation device to the air conditioning unit for heat exchange, and transports the hot water after the heat exchange back to the heat preservation device.

9. A heat recovery system according to claim 1 or 8, characterized in that: An insulation board is arranged in the insulation device, and the insulation board divides the insulation device into a first cavity and a second cavity. The first cavity is used to hold water at 55-65°C, and the second cavity is used to hold water at 65-70°C. The first cavity and the second cavity are connected.

10. A heat recovery system according to claim 9, characterized in that: A first temperature sensor is installed on one side wall of the first cavity, and a second temperature sensor is installed on one side wall of the second cavity.