Energy-saving heat exchanger

Abstract

According to the energy-saving heat exchanger provided by the utility model, through the design of the recycling box, waste heat in gas exhausted from the gas outlet in the heat exchange process of the heat exchanger main body can be effectively recycled. Water in the recycling box is driven by the water flow driving assembly to flow, better heat exchange is conducted between the water and exhausted gas through the S-shaped gas pipe, waste heat is absorbed by the water, and the waste heat recycling mechanism not only improves the energy utilization efficiency, but also is beneficial to reducing energy consumption and operation cost. After absorbing waste heat, water in the recycling box enters the heat exchanger body again through the three-way valve for heat exchange, secondary utilization of heat energy is achieved, heat loss is reduced, and the influence on the environment is reduced. In addition, the recycling box is further provided with a filtering material, impurities and harmful substances in the gas can be effectively filtered and adsorbed, and the cleanliness of the exhausted gas is improved. Therefore, the energy-saving heat exchanger realizes the recovery and utilization of waste heat, improves the energy utilization efficiency, and also has the function of filtering and purifying gas.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to an energy-saving heat exchanger. Background Art

[0002] In modern industrial production and daily life, heat exchangers, as an important heat energy transfer equipment, are widely used in various fields, such as electricity, chemical industry, petroleum, pharmaceuticals, etc. The main function of heat exchangers is to achieve efficient transfer and conversion of heat energy to meet the demand for heat energy in production and life. However, during the operation of traditional heat exchangers, there are often problems such as low heat energy utilization efficiency, high energy consumption, and large heat loss, which not only increases production costs, but also has an adverse impact on the environment.

[0003] Specifically, traditional heat exchangers often generate a lot of heat loss during the heat exchange process, especially in the gas heat exchange process. After the gas passes through the heat exchanger body, the residual heat carried is often directly discharged into the atmosphere, resulting in energy waste. In addition, due to unreasonable design or improper operation and management of the heat exchanger, heat may also accumulate inside the heat exchanger, affecting the normal operation and safety of the heat exchanger.

[0004] In order to solve the above problems, in recent years, people have begun to research and develop various energy-saving heat exchangers that can effectively recover and utilize waste heat, which is of great significance for improving energy utilization efficiency, reducing energy consumption and protecting the environment. Utility Model Content

[0005] The utility model aims to provide an energy-saving heat exchanger, which has the advantages of improving energy utilization efficiency, reducing energy consumption and protecting the environment.

[0006] An energy-saving heat exchanger comprises a heat exchanger body with insulation structures arranged inside and outside respectively, a head is arranged on the left and right sides of the heat exchanger body, a water inlet and an air outlet are arranged at the upper end of one of the heads, a water outlet and an air inlet are arranged at the lower end of the other head, a recovery box is arranged on the side of the head close to the water inlet, a water inlet pipe, a water outlet pipe, an air inlet pipe, an air outlet pipe and a water flow drive assembly are arranged on the recovery box, the water outlet pipe is connected to the water inlet through a three-way valve, the air inlet pipe and the air outlet pipe are respectively connected to a serpentine air pipe arranged inside the recovery box, the air inlet pipe and the air outlet are detachably connected through a connector, a filter material is arranged in the connector, and the output end of the water flow drive assembly is connected to the inside of the recovery box.

[0007] Preferably, the thermal insulation structure on the outside of the heat exchanger body comprises a first metal plate layer, a thermal insulation cotton layer, a first metal plate layer and a rubber-plastic thermal insulation sleeve which are arranged in sequence from the inside to the outside.

[0008] Preferably, the thermal insulation structure on the inner side of the heat exchanger body is a composite magnesium aluminum silicate thermal insulation coating layer coated on the inner wall of the heat exchanger body.

[0009] Preferably, a heat exchange coil connected to the water inlet and the water outlet and a plurality of wind baffles are provided in the heat exchanger body, the heat exchange coil comprises a plurality of heat exchange tubes and a plurality of U-shaped tubes, the heat exchange tubes are relatively arranged, the U-shaped tube is connected between the head and tail of two adjacent heat exchange tubes, and the wind baffle is staggered up and down between two adjacent heat exchange tubes.

[0010] Furthermore, a circular ventilation hole is provided in the middle of the wind blocking plate, and the diameter of the circular ventilation hole is 1 / 6 to 1 / 4 of the longest length of the wind blocking plate.

[0011] Preferably, the water flow driving component is a fan or a stirring motor provided with a stirring shaft.

[0012] Preferably, temperature sensors are provided in the recovery box and at the air outlet.

[0013] Preferably, the filter material is activated carbon.

[0014] Preferably, the recovery box and the sealing head are connected via a threaded structure.

[0015] Compared with the prior art, the utility model has the following beneficial effects: the utility model provides an energy-saving heat exchanger, which can effectively recover the waste heat in the gas discharged from the heat exchanger body through the gas outlet during the heat exchange process through the design of the recovery box. The water in the recovery box flows under the drive of the water flow drive component, and performs better heat exchange with the discharged gas through the serpentine air pipe, so that the waste heat is absorbed by the water. This waste heat recovery mechanism not only improves the energy utilization efficiency, but also helps to reduce energy consumption and operating costs. After the water in the recovery box absorbs the waste heat, it re-enters the heat exchanger body through the three-way valve for heat exchange, realizing the secondary utilization of heat energy, not only reducing heat loss, but also helping to reduce the impact on the environment. In addition, the recovery box is also equipped with a filter material, which can effectively filter and adsorb impurities and harmful substances in the gas, improve the cleanliness of the discharged gas, and further protect the environment. Therefore, the energy-saving heat exchanger not only realizes the recovery and utilization of waste heat, improves the energy utilization efficiency, reduces energy consumption and operating costs, but also has the function of filtering and purifying gas, which is of great significance to protecting the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the energy-saving heat exchanger described in the utility model;

[0017] in:

[0018] 1-heat exchanger body, 2-end, 21-water inlet, 22-air outlet, 23-water outlet, 24-air inlet, 3-recovery box, 31-water inlet pipe, 32-water outlet pipe, 33-air inlet pipe, 34-air outlet pipe, 35-water flow drive assembly, 36-three-way valve, 37-snake air pipe, 38-connector, 25-heat exchange coil, 26-wind baffle, 27-heat exchange tube, 28-U-tube. DETAILED DESCRIPTION

[0019] The embodiments described below are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 The present embodiment provides an energy-saving heat exchanger, comprising a heat exchanger body 1 with heat insulation structures provided inside and outside, a head 2 is provided on both sides of the heat exchanger body 1, a water inlet 21 and an air outlet 22 are provided at the upper end of one of the heads 2, a water outlet 23 and an air inlet 24 are provided at the lower end of the other head 2, a recovery box 3 is provided on the side of the head 2 near the water inlet 21, and a water inlet pipe 31 and a water outlet pipe 32 are provided on the recovery box 3. , an air inlet pipe 33, an air outlet pipe 34 and a water flow driving component 35, the water outlet pipe 32 is connected to the water inlet 21 via a three-way valve 36, the air inlet pipe 33 and the air outlet pipe 34 are respectively connected to a serpentine air pipe 37 arranged inside the recovery box 3, the air inlet pipe 33 and the air outlet 22 are detachably connected via a connector 38, a filter material is arranged in the connector 38, and the output end of the water flow driving component 35 is connected to the inside of the recovery box 3.

[0021] Preferably, the insulation structure on the outside of the heat exchanger body 1 includes a first metal plate layer, a thermal insulation cotton layer, a first metal plate layer and a rubber-plastic insulation sleeve, which are arranged in sequence from the inside to the outside. The insulation structure on the outside of the heat exchanger body 1 not only effectively improves the thermal insulation performance and reduces the loss of heat energy through the outer wall, but also enhances the structural strength and durability of the heat exchanger. The first metal plate layer provides basic mechanical support, the thermal insulation cotton layer provides the main thermal insulation effect, and the rubber-plastic insulation sleeve not only enhances the waterproof performance, but also makes installation and maintenance more convenient. The above design can significantly improve energy utilization efficiency, reduce energy consumption and operating costs, and make positive contributions to energy conservation, emission reduction and environmental protection.

[0022] Preferably, the thermal insulation structure on the inner side of the heat exchanger body 1 is a composite magnesium aluminum silicate thermal insulation coating layer coated on the inner wall of the heat exchanger body 1. The composite magnesium aluminum silicate thermal insulation coating layer has an extremely low thermal conductivity and excellent thermal stability, and can significantly reduce the transfer of heat through the inner wall of the heat exchanger body 1, thereby reducing energy loss and improving heat exchange efficiency. At the same time, since the composite magnesium aluminum silicate thermal insulation coating layer has alkaline properties, it has low corrosiveness to substrates such as steel and non-ferrous metals, and can effectively protect the heat exchanger body 1 from chemical corrosion and extend its service life.

[0023] Preferably, the heat exchanger body 1 is provided with a heat exchange coil 25 connected to the water inlet 21 and the water outlet 23 and a plurality of air baffles 26, the heat exchange coil 25 includes a plurality of heat exchange tubes 27 and a plurality of U-shaped tubes 28, the heat exchange tubes 27 are arranged relatively, the U-shaped tubes 28 are connected between the head and tail of two adjacent heat exchange tubes 27, and the air baffles 26 are arranged between the two adjacent heat exchange tubes 27 in an upper and lower offset manner. It should be noted that the setting of the air baffles 26 allows the high-temperature gas to flow through the channel formed between different air baffles 26, thereby increasing the flow path of the gas in the heat exchanger body 1, and the heat exchange coil 25 is arranged in the channel formed between different air baffles 26, thereby increasing the contact area between the heat exchange coil 25 and the gas, which is conducive to the full absorption of heat by the water in the heat exchange coil 25 and increases the full recovery capacity of the gas heat. In this embodiment, the air baffle 26 is a semicircular air baffle 26.

[0024] Furthermore, a circular vent is provided in the middle of the air baffle 26, and the diameter of the circular vent is 1 / 6 to 1 / 4 of the longest length of the air baffle 26. The circular vent significantly improves the gas flowability in the heat exchanger. It allows part of the gas to flow directly through the vent, reducing the resistance to gas flow, so that the gas can be more evenly distributed around the heat exchange coil 25, which not only increases the contact area between the gas and the heat exchange coil 25, but also increases the frequency and efficiency of heat exchange. The size design of the circular vent is also very important. A vent that is too small may restrict the flow of gas, resulting in reduced heat exchange efficiency; while a vent that is too large may make the gas flow too fast, reducing the contact time between the gas and the heat exchange coil 25. Therefore, setting the diameter of the vent to 1 / 6 to 1 / 4 of the longest length of the air baffle 26 not only ensures the smoothness of gas flow, but also ensures that there is enough contact time between the gas and the heat exchange coil 25, thereby maximizing the heat exchange efficiency. This not only improves the heat exchange speed of the heat exchanger, allowing the equipment to reach the predetermined temperature requirements more quickly, but also reduces energy consumption and operating costs. At the same time, due to the enhanced gas flow, the pressure distribution inside the equipment is more uniform, reducing equipment failures caused by poor gas flow or excessive pressure, and enhancing the stability and reliability of the equipment.

[0025] Preferably, the water flow driving component 35 is a fan or a stirring motor provided with a stirring shaft. In this embodiment, the water flow driving component 35 is a stirring motor provided with a stirring shaft, and the water in the recovery box 3 is stirred by the stirring shaft, thereby breaking the static state of the water body and increasing the fluidity and mixing of the water body. Stirring the water body not only helps to increase the contact area and contact time between the water body and the heat exchange coil 25, but also promotes uniform temperature distribution in the water body and reduces temperature stratification.

[0026] Preferably, temperature sensors are provided in the recovery box 3 and at the air outlet 22. Real-time monitoring and precise control of the operating state of the heat exchanger can be achieved, thereby ensuring efficient and stable operation of the equipment.

[0027] Preferably, the filter material is activated carbon, so that the gas discharged from the gas outlet 22 can be filtered.

[0028] Preferably, the recovery box 3 is connected to the sealing head 2 via a threaded structure, so that the recovery box 3 can be disassembled for maintenance.

[0029] The utility model provides an energy-saving heat exchanger. Through the design of the recovery box 3, the waste heat in the gas discharged from the heat exchanger body 1 through the gas outlet 22 during the heat exchange process can be effectively recovered. The water in the recovery box 3 flows under the drive of the water flow drive component 35, and performs better heat exchange with the discharged gas through the serpentine air pipe 37, so that the waste heat is absorbed by the water. This waste heat recovery mechanism not only improves the energy utilization efficiency, but also helps to reduce energy consumption and operating costs. After the water in the recovery box 3 absorbs the waste heat, it re-enters the heat exchanger body 1 through the three-way valve 36 for heat exchange, realizing the secondary utilization of heat energy, not only reducing heat loss, but also helping to reduce the impact on the environment. In addition, the recovery box 3 is also equipped with a filter material, which can effectively filter and adsorb impurities and harmful substances in the gas, improve the cleanliness of the discharged gas, and further protect the environment. Therefore, the energy-saving heat exchanger not only realizes the recovery and utilization of waste heat, improves the energy utilization efficiency, reduces energy consumption and operating costs, but also has the function of filtering and purifying gas, which is of great significance to protecting the environment.

[0030] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model, and do not limit the utility model to the specific implementation methods described. Obviously, modifications and changes can be made according to the content of this specification. The embodiments selected and specifically described in this specification are to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can understand and use the utility model well. It is not a limitation of the utility model. Any solution that is a simple deformation of the utility model belongs to the protection scope of the utility model.

Claims

1. An energy-saving heat exchanger, comprising a heat exchanger body with heat insulation structures disposed inside and outside, a sealing head disposed on both sides of the heat exchanger body, a water inlet and an air outlet disposed at the upper end of one of the sealing heads, and a water outlet and an air inlet disposed at the lower end of the other of the sealing heads, characterized in that: A recovery box is arranged on the side of the cover near the water inlet, and a water inlet pipe, a water outlet pipe, an air inlet pipe, an air outlet pipe and a water flow driving assembly are arranged on the recovery box. The water outlet pipe is connected to the water inlet through a three-way valve, and the air inlet pipe and the air outlet pipe are respectively connected to the serpentine air pipe arranged inside the recovery box, and the air inlet pipe is detachably connected to the air outlet through a connector, and a filter material is arranged in the connector, and the output end of the water flow driving assembly is connected to the inside of the recovery box.

2. The energy-saving heat exchanger according to claim 1, characterized in that: The heat preservation structure outside the heat exchanger body includes a first metal plate layer, a heat preservation cotton layer, a first metal plate layer and a rubber-plastic heat preservation sleeve which are arranged in sequence from the inside to the outside.

3. The energy-saving heat exchanger according to claim 2, characterized in that: The heat-insulating structure inside the heat exchanger body is a composite magnesium-aluminum silicate heat-insulating coating layer coated on the inner wall of the heat exchanger body.

4. The energy-saving heat exchanger according to claim 1, characterized in that: The heat exchanger body is provided with a heat exchange coil connected to the water inlet and the water outlet and a plurality of wind blocking plates. The heat exchange coil includes a plurality of heat exchange tubes and a plurality of U-shaped tubes. The heat exchange tubes are arranged relatively to each other. The U-shaped tube is connected between the head and tail of two adjacent heat exchange tubes. The wind blocking plate is arranged between the two adjacent heat exchange tubes in an upper and lower offset manner.

5. The energy-saving heat exchanger according to claim 4, characterized in that: A circular vent is provided in the middle of the wind blocking plate, and the diameter of the circular vent is 1 / 6 to 1 / 4 of the longest length of the wind blocking plate.

6. The energy-saving heat exchanger according to claim 1, characterized in that: The water flow driving component is a fan or a stirring motor provided with a stirring shaft.

7. The energy-saving heat exchanger according to claim 1, characterized in that: Temperature sensors are arranged in the recovery box and at the air outlet.

8. The energy-saving heat exchanger according to claim 1, characterized in that: The filter material is activated carbon.

9. The energy-saving heat exchanger according to claim 1, characterized in that: The recovery box is connected to the sealing head via a threaded structure.

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