A heating ventilation air conditioner waste heat recovery device

Abstract

The application discloses a kind of heating ventilation air conditioner waste heat recovery device, belong to heating ventilation air conditioning equipment technical field.A kind of heating ventilation air conditioner waste heat recovery device, comprising: heating tank, heating tank lower side is fixedly connected with drain valve, heating tank one side is fixedly connected with hot gas input pipe, hot gas input pipe end extends to heating tank inner chamber and is fixedly connected with first heating pipe, heating tank other side is equipped with preheating tank, second heating pipe is installed in preheating tank, second heating pipe other end is fixedly connected with exhaust pipe, preheating tank is also fixedly connected with water inlet pipe.The technical scheme of the application is provided with preheating tank, second heating pipe and drain pipe, not only can the heat contained in hot gas be utilized twice, effectively ensure the effect of energy recovery, and the preheated water can be quickly raised to specified temperature, sufficiently improve the efficiency of heating water.

Description

Technical Field

[0001] This application relates to the field of heating, ventilation and air conditioning equipment technology, and more specifically, to a heating, ventilation and air conditioning waste heat recovery device. Background Technology

[0002] Heating, ventilation, and air conditioning systems generate a significant amount of waste heat during operation. Traditionally, this heat is typically released directly into the environment through radiators or cooling fans, resulting in not only substantial energy waste but also environmental pollution. Therefore, waste heat recovery devices for HVAC systems have gained increasing attention.

[0003] The prior art publication CN219141031U provides a waste heat recovery device for HVAC systems. This device, by setting a fixed plate, a pulley mechanism and a movable pipe, can drive the gas delivery pipe to rotate inside the water storage tank, thereby improving the comprehensiveness of the contact between the hot gas and the water storage tank and ensuring the uniformity of liquid heating.

[0004] While the existing technical solutions described above can achieve waste heat recovery, they still have the following drawbacks: These solutions only utilize the hot airflow once, and the temperature of the airflow discharged from the tail end of the gas pipe remains relatively high. This method makes it difficult to fully utilize waste heat, resulting in poor energy recovery. Therefore, we propose a waste heat recovery device for HVAC systems. Utility Model Content

[0005] 1. The technical problems to be solved.

[0006] The purpose of this application is to provide a waste heat recovery device for HVAC systems to solve the technical problems mentioned in the background.

[0007] 2. Technical solution. This application provides a waste heat recovery device for HVAC systems, comprising: a heating tank, a drain valve fixedly connected to the lower side of the heating tank, a hot gas input pipe fixedly connected to one side of the heating tank, the end of the hot gas input pipe extending into the inner cavity of the heating tank and fixedly connected to a first heating pipe, a top cover inserted on the heating tank, a preheating tank installed on the other side of the heating tank, a second heating pipe installed inside the preheating tank, an inlet pipe fixedly connected to the other end of the first heating pipe, the inlet pipe communicating with the inner cavity of the second heating pipe, an exhaust gas pipe fixedly connected to the other end of the second heating pipe, and a water inlet pipe fixedly connected to the preheating tank.

[0008] By adopting the above technical solution, not only can the heat contained in the hot air be reused to effectively ensure the energy recovery effect, but the preheated water can also rise to the specified temperature more quickly, thus greatly improving the efficiency of heating water.

[0009] As an optional solution to the technical solution of this application, a water pump is installed on one side of the preheating tank, a connecting pipe is fixedly connected to the input end of the water pump, the lower end of the connecting pipe extends into the inner cavity of the preheating tank, and a water supply pipe is fixedly connected between the output end of the water pump and the inner cavity of the heating tank.

[0010] By adopting the above technical solution, it is convenient for users to replenish the hot water in the preheating tank into the heating tank.

[0011] As an optional solution to the technical solution of this application, both the first heating tube and the second heating tube are made of metal materials, and both the first heating tube and the second heating tube are arranged in a spiral structure.

[0012] By adopting the above technical solutions, the time that hot airflow spends in the heating tank and preheating tank can be extended, thereby further improving the energy recovery and utilization rate.

[0013] As an optional solution to the technical solution of this application, multiple uniform heating tubes are densely distributed on both the first heating tube and the second heating tube, and the uniform heating tubes are connected to the inner cavities of the corresponding first heating tube and the second heating tube.

[0014] By adopting the above technical solution, water can be heated evenly, further improving heating efficiency.

[0015] As an optional solution to the technical solution of this application, the heating tank has an insulation cavity inside, the hot gas input pipe is fixedly connected to the insulation cavity by a receiving pipe, and the other side of the insulation cavity is fixedly connected to the second heating pipe by a transfer pipe.

[0016] By adopting the above technical solution, water can be heated from both the inside and outside, further improving the efficiency of water heating.

[0017] 3. Beneficial effects.

[0018] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages.

[0019] 1. The technical solution of this application, by setting up a preheating tank, a second heating pipe and an inlet pipe, can not only make secondary use of the heat contained in the hot air and effectively ensure the energy recovery effect, but also allow the preheated water to rise to the specified temperature more quickly, thus greatly improving the efficiency of heating water.

[0020] 2. The technical solution of this application improves heating efficiency by setting up a uniform heating tube, which enables water to be heated evenly. In addition, since both the first heating tube and the second heating tube are arranged in a spiral structure, the time of hot air flow in the heating tank and the preheating tank can be extended, thereby further improving the energy recovery and utilization rate.

[0021] 3. The technical solution of this application, by setting up a receiving pipe and an insulation cavity, can increase the temperature outside the heating tank, heat the water from both inside and outside, reduce the heat loss of the heating tank, and further improve the efficiency of heating the water. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a heating, ventilation, air conditioning waste heat recovery device disclosed in a preferred embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the overall structure of the heating tank and preheating tank in the HVAC waste heat recovery device disclosed in a preferred embodiment of this application after being cut apart.

[0024] Figure 3 This is a cross-sectional view of the heating tank in a preferred embodiment of the HVAC waste heat recovery device disclosed in this application.

[0025] The following are the labels in the diagram: 1. Heating tank; 101. Insulation chamber; 2. Preheating tank; 3. Hot air input pipe; 4. Exhaust gas pipe; 5. First heating pipe; 6. Second heating pipe; 7. Uniform heating pipe; 8. Receiving pipe; 9. Drain pipe; 10. Transfer pipe; 11. Water pump; 12. Connecting pipe; 13. Water inlet pipe; 14. Top cover; 15. Water supply pipe; 16. Drain valve. Detailed Implementation

[0026] The present application will be further described in detail below with reference to the accompanying drawings. Reference Figure 1 and Figure 2 This application discloses a waste heat recovery device for heating, ventilation, and air conditioning systems, comprising: a heating tank 1, a drain valve 16 fixedly connected to the lower side of the heating tank 1, a hot air input pipe 3 fixedly connected to one side of the heating tank 1, the end of the hot air input pipe 3 extending into the inner cavity of the heating tank 1 and fixedly connected to a first heating pipe 5, a top cover 14 inserted on the heating tank 1, a preheating tank 2 installed on the other side of the heating tank 1, a second heating pipe 6 installed inside the preheating tank 2, an inlet pipe 9 fixedly connected to the other end of the first heating pipe 5, the inlet pipe 9 communicating with the inner cavity of the second heating pipe 6, an exhaust pipe 4 fixedly connected to the other end of the second heating pipe 6, and a water inlet pipe 13 fixedly connected to the preheating tank 2.

[0027] A water pump 11 is installed on one side of the preheating tank 2. A connecting pipe 12 is fixedly connected to the input end of the water pump 11. The lower end of the connecting pipe 12 extends into the inner cavity of the preheating tank 2. A water supply pipe 15 is fixedly connected between the output end of the water pump 11 and the inner cavity of the heating tank 1.

[0028] The hot air generated by the HVAC system is input into the first heating pipe 5 through the hot air input pipe 3. The temperature of the first heating pipe 5 gradually increases, heating the water in the heating tank 1. The hot air in the first heating pipe 5 is input into the second heating pipe 6 through the discharge pipe 9. The temperature of the second heating pipe 6 increases, preheating the water in the preheating tank 2. When the water in the heating tank 1 reaches the appropriate temperature, the hot water is discharged through the drain valve 16. Then, the water pump 11 runs, and the preheated water in the preheating tank 2 is input into the heating tank 1 through the water supply pipe 15. In this way, not only can the heat contained in the hot air be reused, effectively ensuring the energy recovery effect, but the preheated water can also rise to the specified temperature more quickly, greatly improving the efficiency of water heating.

[0029] Reference Figure 2 Both the first heating tube 5 and the second heating tube 6 are made of metal and are arranged in a spiral structure, which can prolong the time of hot air flow in the heating tank 1 and the preheating tank 2, and further improve the energy recovery and utilization rate.

[0030] Multiple uniform heating tubes 7 are densely distributed on the first heating tube 5 and the second heating tube 6, and the uniform heating tubes 7 are connected to the inner cavity of the corresponding first heating tube 5 and the second heating tube 6.

[0031] As the hot air flows through the first heating tube 5 and the second heating tube 6, it also flows into the uniform heating tube 7, so that the water can be heated evenly and the heating efficiency can be further improved.

[0032] Reference Figure 1 and Figure 3 The heating tank 1 has an insulation cavity 101 inside. A receiving pipe 8 is fixedly connected between the hot air input pipe 3 and the insulation cavity 101. A transfer pipe 10 is fixedly connected between the other side of the insulation cavity 101 and the second heating pipe 6.

[0033] A portion of the hot airflow will enter the insulation cavity 101 through the receiving pipe 8, raising the external temperature of the heating tank 1, thereby heating the water from both the inside and outside, reducing heat loss from the heating tank 1, and further improving the efficiency of heating the water.

[0034] This application, by setting up a preheating tank 2, a second heating pipe 6, and an inlet pipe 9, not only enables the secondary utilization of the heat contained in the hot air, effectively ensuring the energy recovery effect, but also allows the preheated water to rise to the specified temperature more quickly, significantly improving the efficiency of water heating. At the same time, by setting up a uniform heating pipe 7, the water can be heated evenly, further improving the heating efficiency. In addition, by setting up a receiving pipe 8 and a heat preservation cavity 101, the external temperature of the heating tank 1 can be increased, heating the water from both inside and outside, reducing the heat loss of the heating tank 1.

[0035] The implementation principle of the HVAC waste heat recovery device in this application embodiment is as follows: When relevant personnel need to use this technical solution to heat water using HVAC waste heat, the hot air generated by the HVAC system is first introduced into the first heating pipe 5 through the hot air inlet pipe 3. The temperature of the first heating pipe 5 gradually increases, heating the water in the heating tank 1. The hot air in the first heating pipe 5 is then introduced into the second heating pipe 6 through the outlet pipe 9. The temperature of the second heating pipe 6 increases, preheating the water in the preheating tank 2. When the water in the heating tank 1 reaches a suitable temperature, the hot water is discharged through the drain valve 16. Subsequently, the water pump 11 operates, introducing the preheated water from the preheating tank 2 into the heating tank 1 through the water supply pipe 15. During this process, a portion of the hot air flows into the insulation cavity 101 through the receiving pipe 8, raising the external temperature of the heating tank 1 and heating the water from both the inside and outside. This process continues, thus fully utilizing the HVAC waste heat.

Claims

1. A heating, ventilation, and air conditioning heat recovery device, characterized by: Includes: a heating tank (1), a drain valve (16) fixedly connected to the lower side of the heating tank (1), a hot air input pipe (3) fixedly connected to one side of the heating tank (1), the end of the hot air input pipe (3) extending into the inner cavity of the heating tank (1) and fixedly connected to a first heating pipe (5), a top cover (14) inserted on the heating tank (1), a preheating tank (2) installed on the other side of the heating tank (1), a second heating pipe (6) installed inside the preheating tank (2), a drain pipe (9) fixedly connected to the other end of the first heating pipe (5), the drain pipe (9) communicating with the inner cavity of the second heating pipe (6), a waste gas pipe (4) fixedly connected to the other end of the second heating pipe (6), and a water inlet pipe (13) fixedly connected to the preheating tank (2).

2. The HVAC waste heat recovery device according to claim 1, characterized in that: A water pump (11) is installed on one side of the preheating tank (2). A connecting pipe (12) is fixedly connected to the input end of the water pump (11). The lower end of the connecting pipe (12) extends into the inner cavity of the preheating tank (2). A water supply pipe (15) is fixedly connected between the output end of the water pump (11) and the inner cavity of the heating tank (1).

3. The HVAC waste heat recovery device according to claim 1, characterized in that: Both the first heating tube (5) and the second heating tube (6) are made of metal materials, and both the first heating tube (5) and the second heating tube (6) are arranged in a spiral structure.

4. The HVAC waste heat recovery device according to claim 1, characterized in that: Multiple uniform heating tubes (7) are densely distributed on the first heating tube (5) and the second heating tube (6), and the uniform heating tubes (7) are connected to the inner cavities of the corresponding first heating tube (5) and second heating tube (6).

5. The HVAC waste heat recovery device according to claim 1, characterized in that: The heating tank (1) has an inner heat preservation cavity (101), and a receiving pipe (8) is fixedly connected between the hot gas input pipe (3) and the heat preservation cavity (101). A transfer pipe (10) is fixedly connected between the other side of the heat preservation cavity (101) and the second heating pipe (6).

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