Energy-saving heat exchanger suitable for train air conditioning system

Abstract

The utility model relates to the technical field of railway trains, in particular to an energy-saving heat exchanger suitable for a train air conditioning system, which comprises a heat exchanger body, one side of the heat exchanger body is provided with a filtering mechanism, and the other side of the heat exchanger body is communicated with a water outlet pipe; the sealing shell, the second sealing partition plate, the sealing ring, the filter element and other components are arranged, the sealing shell and the second sealing partition plate are matched to form a closed cavity, and the sealing ring is fixed to one side of the filter element and makes contact with a closed side plate of the second sealing partition plate, so that when the filter element filters a water body flowing in from the water inlet pipe, the water body flows out; the sealing ring can prevent water leakage through a bidirectional sealing contact surface. Therefore, the device can perform impurity adsorption and particle filtration on water entering the heat exchanger body through the multi-gap stainless steel sintered filter screen and the filter element with the activated carbon filler, so that the heat exchanger is prevented from being blocked, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of railway train technology, and in particular to an energy-saving heat exchanger suitable for train air conditioning systems. Background Technology

[0002] As a key component ensuring passenger comfort, the train's air conditioning system accounts for a significant portion of the overall energy consumption of the train. Currently, traditional train air conditioning heat exchangers face numerous challenges during operation. Firstly, particulate impurities, microorganisms, and dissolved pollutants in the circulating water can easily cause blockages and scaling in the heat exchanger pipes, affecting heat exchange efficiency, shortening equipment lifespan, and increasing maintenance costs. Secondly, existing filtration devices are mostly fixed structures, requiring system shutdown for replacement when filters become clogged. This not only affects the continuous operation of the train's air conditioning system but may also cause water leaks during replacement, reducing the reliability and safety of train operation. Furthermore, with increasingly stringent energy conservation and environmental protection requirements, traditional heat exchangers, due to insufficient heat exchange efficiency, result in persistently high energy consumption, making it difficult to meet the demands of green travel development.

[0003] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: Existing devices lack efficient filtration systems, resulting in limited removal capabilities for fine impurities and organic matter in water. This leads to scaling and clogging inside the heat exchanger, affecting heat exchange efficiency and equipment lifespan. Furthermore, the lack of an automatic filter replacement mechanism necessitates manual periodic disassembly and replacement of the filter elements, which is inconvenient during train operation and increases maintenance costs and downtime. Utility Model Content

[0004] In order to solve the problems mentioned in the background art, this application provides an energy-saving heat exchanger suitable for train air conditioning systems.

[0005] This application provides an energy-saving heat exchanger suitable for train air conditioning systems, which adopts the following technical solution: an energy-saving heat exchanger suitable for train air conditioning systems includes a heat exchanger body, a filter mechanism is provided on one side of the heat exchanger body, and a water outlet pipe is connected to the other side of the heat exchanger body.

[0006] The filtration mechanism includes a filter assembly for filtering water entering the heat exchanger body and a gear transmission assembly for driving the filter assembly to rotate. The filter assembly includes a sealing shell fixedly installed on one side of the heat exchanger body, a second sealing partition plate that cooperates with the sealing shell to form a sealed cavity, and a sealing ring to prevent water leakage. The sealing ring is fixedly installed on one side of the filter element and is movably connected to one side of the second sealing partition plate. The second sealing partition plate includes a sealed side plate that is in direct contact with the sealing ring and a motor mounting plate for fixing a servo motor.

[0007] Optionally, the gear transmission assembly includes a servo motor fixedly mounted on one side of the second sealing partition, a first gear fixedly mounted on the output end of the servo motor, and a second gear for driving the filter element to rotate. The servo motor is fixedly mounted on one side of the second sealing partition to provide power to the gear transmission assembly and drive the first gear to rotate. The second gear meshes with the first gear on one side. A positioning hole is provided through one side of the second gear for fixing the filter element.

[0008] Optionally, a water inlet pipe is fixedly installed on one side of the second sealing partition. The water inlet pipe is fixedly installed on one side of the second sealing partition to introduce external water into the filter element and connects to the water inlet of the heat exchanger body through the filter element, so that the filtered water enters the heat exchanger body. The water inlet pipe is connected to the water inlet of the heat exchanger body through the filter element.

[0009] Optionally, the filter element is used to filter the water entering the heat exchanger body through the inlet pipe, remove impurities and harmful substances from the water, and ensure that the water entering the heat exchanger body is clean. The filter element is composed of a porous outer shell and built-in activated carbon filler.

[0010] Optionally, a water inlet hole is provided on one side of the first sealing partition, corresponding to the water inlet end of the water inlet pipe, for guiding water flow into the filter element for filtration. The position of the water inlet hole corresponds to the water inlet end of the water inlet pipe.

[0011] Optionally, the sealing shell and the second sealing partition are connected by a flange. The sealing shell and the second sealing partition cooperate to form a sealed cavity, providing space for the internal filter components, ensuring that the filtration process is carried out in a closed environment, preventing water leakage, and a rubber gasket is provided between the two to achieve the sealing of the sealed cavity.

[0012] Optionally, the output shaft of the servo motor is connected to the first gear via a keyway. The first gear is installed at the output end of the servo motor and transmits the power of the servo motor to the second gear through meshing. The rotational speed of the servo motor is linearly proportional to the rotation angle of the second gear.

[0013] Optionally, the multi-porous outer shell of the filter element is made of 316L stainless steel sintered filter mesh with a porosity range of 40%-60% and the particle size of the activated carbon filler is 0.5-1.2mm.

[0014] Optionally, the sealing ring is made of fluororubber and has a trapezoidal cross-section. The sealing ring is fixedly installed on one side of the filter element and movably connected to one side of the second sealing partition. It is made of fluororubber and has a trapezoidal cross-section, forming a bidirectional sealing contact surface with the sealed side plate of the second sealing partition to prevent water leakage.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] 1. This utility model, by setting up components such as a sealing shell, a second sealing partition, a sealing ring, and a filter element, forms a sealed cavity through the cooperation of the sealing shell and the second sealing partition. The sealing ring is fixed to one side of the filter element and contacts the sealed side plate of the second sealing partition. This allows the sealing ring to prevent water leakage through a bidirectional sealing contact surface when the filter element is filtering water flowing in from the inlet pipe. Thus, this device achieves the effect of adsorbing impurities and filtering particles from the water entering the heat exchanger body through a filter element filled with multi-porous stainless steel sintered mesh and activated carbon, preventing heat exchanger blockage and improving heat exchange efficiency.

[0017] 2. This utility model incorporates a servo motor, a first gear, and a second gear. The first and second gears mesh at the output of the servo motor, and the filter element is fixed in a positioning hole on the second gear. This allows the servo motor to drive the second gear to rotate the filter element via a linearly proportional controlled rotation speed. Consequently, this device can automatically switch the filter element's operating state through a gear transmission assembly, achieving filter element rotation without shutting down the system. This continuously filters water, reduces the frequency of manual maintenance, and meets the long-term stable operation requirements of train air conditioning systems. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in an embodiment of this application;

[0019] Figure 2 This is a partial structural diagram of an embodiment of this application;

[0020] Figure 3 This is a partial structural diagram of the filtering mechanism in an embodiment of this application;

[0021] Figure 4 This is a schematic diagram of a partial structure of the filter mechanism in an embodiment of this application;

[0022] Reference numerals in the attached drawings: 1. Heat exchanger body; 2. Filtration mechanism; 201. Sealing shell; 202. First sealing partition; 203. Water inlet; 204. Filter element; 205. Water inlet pipe; 206. Second sealing partition; 207. Second gear; 208. First gear; 209. Servo motor; 210. Sealing ring; 3. Water outlet pipe. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0024] This application discloses an energy-saving heat exchanger suitable for train air conditioning systems.

[0025] Please see Figure 1 An energy-saving heat exchanger suitable for train air conditioning systems includes a heat exchanger body 1, a filter mechanism 2 is provided on one side of the heat exchanger body 1, and a water outlet pipe 3 is connected to the other side of the heat exchanger body 1.

[0026] Please see Figures 2 to 4 The filter mechanism 2 includes a filter assembly for filtering water entering the heat exchanger body 1 and a gear transmission assembly for driving the filter assembly to rotate. The filter assembly includes a sealing shell 201 fixedly installed on one side of the heat exchanger body 1, a second sealing partition 206 that cooperates with the sealing shell 201 to form a sealed cavity, and a sealing ring 210 to prevent water leakage. The sealing shell 201 and the second sealing partition 206 are connected by a flange, and a rubber gasket is provided between them to achieve a seal of the sealed cavity. The sealing ring 210 is fixedly installed on the filter element 204. On one side, filter element 204 filters the water entering the heat exchanger body 1 through inlet pipe 205. Filter element 204 consists of a porous outer shell and internal activated carbon filler. A sealing ring 210 is movably connected to one side of the second sealing partition 206. Inlet pipe 205 is fixedly installed on one side of the second sealing partition 206. Inlet pipe 205 communicates with the water inlet of heat exchanger body 1 through filter element 204. The second sealing partition 206 includes a sealed side plate in direct contact with sealing ring 210 and a motor mounting plate for fixing servo motor 209. A water inlet hole 203 is provided on one side of the first sealing partition 202, and the position of the water inlet hole 203 corresponds to the water inlet end of inlet pipe 205.

[0027] The 204 filter element has a multi-porous outer shell made of 316L stainless steel sintered filter mesh with a porosity range of 40%-60% and activated carbon filler with a particle size of 0.5-1.2mm.

[0028] The gear transmission assembly includes a servo motor 209 fixedly installed on one side of the second sealing partition 206, a first gear 208 fixedly installed on the output end of the servo motor 209, and a second gear 207 for driving the filter element 204 to rotate. The second gear 207 meshes with the first gear 208 on one side. A positioning hole is provided through one side of the second gear 207 for fixing the filter element 204.

[0029] The output shaft of the servo motor 209 is connected to the first gear 208 via a keyway, and the rotational speed of the servo motor 209 is linearly proportional to the rotation angle of the second gear 207.

[0030] The sealing ring 210 is made of fluororubber and has a trapezoidal cross-section, forming a bidirectional sealing contact surface with the sealing side plate of the second sealing partition 206.

[0031] Further explanation is needed: the filtration mechanism 2 is a key component of the energy-saving heat exchanger of the train air conditioning system. It mainly realizes two core functions: water filtration and filter element 204 replacement, ensuring the efficient and stable operation of the heat exchanger. In terms of water filtration, the filtration assembly forms a sealed space through the sealing shell 201 and the second sealing partition 206. The built-in filter element 204 is composed of a multi-porous shell and activated carbon filler, which can effectively intercept particulate impurities in the water and adsorb pollutants, preventing impurities from clogging the heat exchanger pipes or affecting the heat exchange efficiency. The sealing ring 210 fits tightly with the sealing partition to form a reliable sealing structure, preventing the leakage of unfiltered water and ensuring that all water entering the heat exchanger is filtered, ensuring water quality cleanliness from the source. In terms of filter element 204 replacement, the gear transmission assembly is driven by the servo motor 209. The first gear 208 and the second gear 207 mesh to drive the filter element 204 to be positioned and replaced. This design supports automatic switching of the spare filter element 204 during system operation, achieving continuous filtration function without stopping the system, improving the reliability and operational continuity of the train air conditioning system.

[0032] The implementation principle of an energy-saving heat exchanger applicable to a train air conditioning system according to an embodiment of this application is as follows:

[0033] First, the external water source is connected through the inlet pipe 205 of the filter mechanism 2. The water flow first enters the sealed filter chamber composed of the sealing shell 201 and the second sealing partition 206. The filter element 204 in the chamber intercepts particulate impurities in the water through the multi-pore structure. At the same time, it relies on the internal filling material to adsorb dissolved pollutants, ensuring that the water entering the heat exchanger is clean and avoiding impurities from clogging the pipes or affecting the heat exchange efficiency.

[0034] Secondly, after the filter element 204 has been used for a period of time, the gear transmission assembly is activated—the servo motor 209 drives the gear set to rotate, which in turn drives the positioning structure on which the filter element 204 is installed to rotate, switching the spare filter element 204 to the working position. This process can be completed during system operation without stopping the machine, ensuring the continuous and stable filtration function and avoiding water flow interruption or filtration failure due to filter element 204 clogging.

[0035] Next, the filtered clean water enters the heat exchanger through the communication channel between the filter element 204 and the heat exchanger body 1. The water exchanges heat with the outside air or other media inside the heat exchanger body 1 to meet the cooling or heating needs of the air conditioning system. Its energy-saving characteristics are reflected through the optimized heat exchanger structure design, reducing energy loss.

[0036] Next, the water that has completed heat exchange flows out from the outlet pipe 3 on the other side of the heat exchanger body 1 and enters the subsequent circulation or discharge stage. The outlet pipe 3 is directly connected to the heat exchanger body 1 to ensure smooth water flow, avoid resistance loss caused by unreasonable pipe design, and improve the overall operating efficiency of the system.

[0037] Finally, the sealing shell 201 of the filter mechanism 2 is tightly connected to the second sealing partition 206 through the sealing assembly to prevent leakage of unfiltered water and ensure the integrity of the filtration process. At the same time, the modular structural design facilitates the later replacement and maintenance of the filter element 204, and the precise positioning of the gear transmission assembly ensures the stability and reliability of the replacement process, thereby achieving long-term and efficient operation of the equipment.

[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An energy-saving heat exchanger suitable for train air conditioning systems, comprising a heat exchanger body (1), characterized in that: A filter mechanism (2) is provided on one side of the heat exchanger body (1), and a water outlet pipe (3) is connected to the other side of the heat exchanger body (1). The filtration mechanism (2) includes a filtration assembly for filtering water entering the heat exchanger body (1) and a gear transmission assembly for driving the filtration assembly to rotate. The filtration assembly includes a sealing shell (201) fixedly installed on one side of the heat exchanger body (1), a second sealing partition (206) that cooperates with the sealing shell (201) to form a sealed cavity, and a sealing ring (210) to prevent water leakage. The sealing ring (210) is fixedly installed on one side of the filter element (204) and is movably connected to one side of the second sealing partition (206). The second sealing partition (206) includes a sealed side plate that is in direct contact with the sealing ring (210) and a motor mounting plate for fixing the servo motor (209).

2. The energy-saving heat exchanger for use in a train air conditioning system according to claim 1, characterized in that: The gear transmission assembly includes a servo motor (209) fixedly installed on one side of the second sealing partition (206), a first gear (208) fixedly installed on the output end of the servo motor (209), and a second gear (207) for driving the filter element (204) to rotate. The second gear (207) meshes with the first gear (208) on one side. A positioning hole is provided on one side of the second gear (207) for fixing the filter element (204).

3. The energy saving heat exchanger for use in a train air conditioning system according to claim 1, characterized in that: A water inlet pipe (205) is fixedly installed on one side of the second sealing partition (206), and the water inlet pipe (205) is connected to the water inlet of the heat exchanger body (1) through the filter element (204).

4. An energy-saving heat exchanger suitable for train air conditioning systems according to claim 1, characterized in that: The filter element (204) is used to filter the water entering the heat exchanger body (1) through the inlet pipe (205), and the filter element (204) is composed of a porous outer shell and an internal activated carbon filler.

5. The energy saving heat exchanger for use in a train air conditioning system according to claim 2, characterized in that: Furthermore, a water inlet hole (203) is provided on one side of the first sealing partition (202), and the position of the water inlet hole (203) corresponds to the position of the water inlet end of the water inlet pipe (205).

6. The energy saving heat exchanger for use in a train air conditioning system of claim 1, wherein: The sealing shell (201) and the second sealing partition (206) are connected by a flange, and a rubber gasket is provided between them to achieve the sealing of the closed cavity.

7. The energy saving heat exchanger for use in a train air conditioning system according to claim 2, characterized in that: The output shaft of the servo motor (209) is connected to the first gear (208) via a keyway, and the rotation speed of the servo motor (209) is linearly proportional to the rotation angle of the second gear (207).

8. The energy saving heat exchanger for use in a train air conditioning system according to claim 4, wherein: The filter element (204) has a multi-porous outer shell made of 316L stainless steel sintered filter mesh with a porosity range of 40%-60% and activated carbon filler with a particle size of 0.5-1.2mm.

9. The energy saving heat exchanger for use in a train air conditioning system of claim 1, wherein: The sealing ring (210) is made of fluororubber and has a trapezoidal cross-section. It forms a bidirectional sealing contact surface with the sealed side plate of the second sealing partition (206).

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