Central air-conditioning heat recovery pipe heat exchanger

Abstract

The utility model discloses a central air-conditioning heat recovery pipe heat exchanger, which relates to the technical field of central air-conditioning heat recovery pipe heat exchangers, and comprises a box body supported and fixed by support columns, a heat exchange cavity is arranged in the box body, heat exchange pipes are spirally arranged in the cavity, and the heat exchange pipes are sequentially arranged from top to bottom. A corrugated heat conduction pipe is arranged in the heat exchange pipe, heat conduction media are arranged on the surface of the corrugated heat conduction pipe and in the heat exchange pipe, the corrugated heat conduction pipe and the heat exchange pipe are communicated with an air outlet pipeline in the box body, and a flow distributor is further arranged in the air outlet pipeline. The heat recovery pipe heat exchanger is reasonable in design structure, and can increase heat exchange area and heat conduction contact points, reduce heat resistance, improve heat exchange efficiency, enhance heat exchange capacity of the heat recovery pipe heat exchanger, enable heat transfer and recovery to be more efficient and improve heat recovery efficiency through matching of the spirally-arranged heat exchange pipes and the corrugated heat conduction pipes with heat conduction media. The energy utilization rate of the central air-conditioning system is improved, energy consumption is reduced, and the indoor temperature adjusting effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to central air conditioning heat recovery pipe heat exchanger technical field, specifically a kind of central air conditioning heat recovery pipe heat exchanger. BACKGROUND

[0002] In today's society, central air conditioning system is widely used in various buildings, whether it is commercial office building, hotel, shopping mall, or industrial plant and residential building, it plays a key role in maintaining comfortable indoor environment. However, with the growing demand for energy and increasing emphasis on sustainable development, the energy consumption problem of central air conditioning system has become one of the key challenges that need to be solved.

[0003] In the running process of traditional central air conditioning system, a large amount of heat is wasted to the surrounding environment, which is not effectively utilized, which causes serious energy waste, although heat recovery technology has been applied in central air conditioning field to some extent, but the existing heat recovery device has many defects, it is difficult to meet the demand of high efficiency and energy saving.

[0004] The existing heat recovery pipe heat exchanger generally adopts relatively simple heat exchange pipe structure and flow channel design, the heat exchange pipe is usually arranged in straight pipe, which makes the heat exchange area limited, cannot fully realize the transfer and recovery of heat, leads to low heat recovery efficiency, moreover, this simple structure design is easy to cause uneven flow distribution of cold and hot fluid in the heat exchanger, produces local overheating or subcooling area, not only reduces the overall heat exchange effect, but also affects the performance stability and comfort of air conditioning system, makes it difficult to achieve ideal state for indoor temperature regulation, cannot meet the requirements of users for high quality indoor environment.

[0005] The existing heat recovery pipe heat exchanger performs poorly in response to air conditioning system load variation, with the change of season, day and night and indoor personnel activity, the load of air conditioning system will fluctuate significantly. However, traditional heat exchanger cannot flexibly adjust its heat exchange performance according to these load changes, cannot guarantee efficient heat recovery and utilization under different working conditions, which greatly limits the energy saving potential and adaptability of central air conditioning system, cannot fully exert its due advantages.

[0006] In summary, in order to break through the bottleneck of existing technology, meet the demand of modern society for efficient, energy-saving, stable operation and adapt to diversified working conditions of central air conditioning system, solve the above problems, for this purpose, we provide a kind of central air conditioning heat recovery pipe heat exchanger to solve the above problems. INVENTION CONTENTS

[0007] (I) technical problems solved

[0008] The utility model discloses a central air conditioning heat recovery pipe heat exchanger which makes up for the deficiency of the prior art.

[0009] (II) Technical solutions

[0010] To achieve the above object, the utility model provides the following technical scheme: a central air conditioning heat recovery pipe heat exchanger, including the box of support column support fixed, the box inside is provided with the chamber of heat exchange, and its chamber inside spiral arrangement has the heat exchange pipe, and the heat exchange pipe is arranged in proper order from top to bottom, and the heat exchange pipe inside is provided with the corrugated heat pipe, and the corrugated heat pipe surface and the heat exchange pipe inside are provided with the heat conducting medium, and the corrugated heat pipe and the heat exchange pipe are communicated with the outlet pipe in the box, and the outlet pipe is also provided with flow distributor, and the side of the box is provided with the pressurizing device through the fixed plate, and the pressurizing device is communicated with the bottom end of the chamber inside the box through the connecting pipe, and the heat exchange liquid in the chamber is discharged through the discharge pipe on the top of the box, and the bottom end of the chamber is provided with the ultrasonic generator.

[0011] Further, the pressurizing device includes a shell, the shell surface is provided with a water injection hole and a water outlet hole communicated with the inside, and the water outlet hole is connected with the connecting pipe communicated with the inside of the chamber.

[0012] Further, the both ends of the inner wall of the shell are fixed with bearings, the shaft is inserted between the bearings, the surface of the shaft is provided with a spiral blade, the outside of the shell is provided with a rotating motor, and the output shaft of the rotating motor is connected with the shaft in the shell through the shell.

[0013] Further, the flow distributor is composed of an electromagnetic throttle valve and a flow sensor.

[0014] Further, the outer surface of the box is provided with a fan through a backing plate, and the fan is connected with the heat exchange pipe and the corrugated heat pipe in the box through a pipe.

[0015] Further, the upper surface of the box is provided with a water outlet pipe, and the lower surface is provided with a blowdown pipe, and the water outlet pipe and the blowdown pipe are both communicated with the chamber in the box.

[0016] Further, the chamber in the box is provided with a temperature sensor, the surface of the box is provided with a controller, and the controller is electrically connected with the rotating motor, the temperature sensor, the fan, the ultrasonic generator, the electromagnetic throttle valve and the flow sensor in the flow distributor through wires.

[0017] (III) Advantages

[0018] Compared with the prior art, the central air conditioning heat recovery pipe heat exchanger has the following advantages:

[0019] The utility model discloses a heat recovery pipe heat exchanger, which comprises a box body, a plurality of support columns, a plurality of fixed plates, a plurality of rotating motors, a plurality of fans, a plurality of water outlet pipes, a plurality of flow distributors, a plurality of flow sensors, a plurality of electromagnetic throttling valves, a plurality of air outlet pipes, a controller, a plurality of discharge pipes, a plurality of temperature sensors, a plurality of pad plates, a plurality of ultrasonic generators, a plurality of corrugated heat-conducting pipes and a plurality of heat exchange pipes.

[0020] The utility model discloses a heat recovery pipe heat exchanger, which comprises a box body, a plurality of support columns, a plurality of fixed plates, a plurality of rotating motors, a plurality of fans, a plurality of water outlet pipes, a plurality of flow distributors, a plurality of flow sensors, a plurality of electromagnetic throttling valves, a plurality of air outlet pipes, a controller, a plurality of discharge pipes, a plurality of temperature sensors, a plurality of pad plates, a plurality of ultrasonic generators, a plurality of corrugated heat-conducting pipes and a plurality of heat exchange pipes.

[0021] The utility model discloses a heat recovery pipe heat exchanger, which comprises a box body, a plurality of support columns, a plurality of fixed plates, a plurality of rotating motors, a plurality of fans, a plurality of water outlet pipes, a plurality of flow distributors, a plurality of flow sensors, a plurality of electromagnetic throttling valves, a plurality of air outlet pipes, a controller, a plurality of discharge pipes, a plurality of temperature sensors, a plurality of pad plates, a plurality of ultrasonic generators, a plurality of corrugated heat-conducting pipes and a plurality of heat exchange pipes. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the three -dimensional structure schematic diagram of the utility model;

[0023] Figure 2 It is the partial cross section structure schematic diagram of the utility model in the box body;

[0024] Figure 3 It is the local front view cross section view of the utility model in heat exchange pipe and corrugated heat-conducting pipe;

[0025] Figure 4 It is the three -dimensional structure schematic diagram of the utility model in fan and heat exchange pipe;

[0026] Figure 5 It is the partial cross section structure schematic diagram of the utility model in pressurizing device;

[0027] Figure 6 It is the system connection structure schematic diagram of the utility model.

[0028] In the drawing: 1, the box body;2, the support column;3, the fixed plate;4, the rotating motor;5, the fan;6, the water outlet pipe;7, the flow distributor;71, the flow sensor;72, the electromagnetic throttling valve;8, the air outlet pipe;9, the controller;10, the discharge pipe;11, the temperature sensor;12, the pad plate;13, the ultrasonic generator;14, the corrugated heat-conducting pipe;15, the heat exchange pipe;16, the rotating shaft;17, the spiral piece;18, the connecting pipe;19, the water injection hole;20, the shell;21, the bearing;22, the water outlet hole. DETAILED DESCRIPTION

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] like Figures 1-6 As shown, this utility model provides a technical solution: a central air conditioning heat recovery pipe heat exchanger, including a box 1 supported and fixed by a support column 2. The box 1 has a heat exchange chamber inside, and heat exchange pipes 15 are spirally arranged inside the chamber. The heat exchange pipes 15 are arranged sequentially from top to bottom. Corrugated heat conduction pipes 14 are provided inside the heat exchange pipes 15. A heat conduction medium is provided on the surface of the corrugated heat conduction pipes 14 and inside the heat exchange pipes 15. The corrugated heat conduction pipes 14 and the heat exchange pipes 15 are connected to the air outlet pipe 8 in the box 1. A flow distributor 7 is also provided in the air outlet pipe 8. A pressurizing device is provided on the side of the box 1 through a fixing plate 3. The pressurizing device is connected to the bottom of the internal chamber of the box 1 through a connecting pipe 18, and discharges the heat exchange liquid in the chamber through the discharge pipe 10 above the box 1. An ultrasonic generator 13 is provided at the bottom of the chamber.

[0031] The spiral arrangement of heat exchange tubes 15 greatly increases the distribution length of heat exchange tubes 15 within the housing 1, resulting in a significant increase in heat exchange area. This significantly enhances the heat exchange capacity of the heat recovery tube heat exchanger, enabling more efficient heat transfer and recovery in both cooling and heating conditions. Consequently, it improves the energy utilization rate of the central air conditioning system and effectively reduces energy consumption. Furthermore, the corrugated heat conduction tubes 14 further optimize the heat conduction path. Their unique corrugated shape increases the heat conduction area and the contact points for heat conduction. Combined with the heat conduction medium, this allows heat to be transferred quickly and evenly within the heat exchange tubes 15, reducing thermal resistance and further improving the overall heat exchange efficiency. This ensures that the central air conditioning system can operate more stably and efficiently, providing a more comfortable temperature regulation effect for the indoor environment.

[0032] Specifically, such as Figure 5 As shown, the pressurizing device includes a housing 20. The surface of the housing 20 is provided with a water injection hole 19 and a water outlet hole 22 that communicate with the interior. The water outlet hole 22 is connected to a connecting pipe 18 that communicates with the interior of the chamber. Bearings 21 are fixed at both ends of the inner wall of the housing 20. A rotating shaft 16 is inserted between the bearings 21. A spiral blade 17 is provided on the surface of the rotating shaft 16. A rotary motor 4 is provided outside the housing 20. The output shaft of the rotary motor 4 passes through the housing 20 and is connected to the rotating shaft 16 inside.

[0033] By rotating the helical blade 17 on the rotating shaft 16 driven by the rotating motor 4, the heat exchange liquid entering the chamber can be pressurized, and the flow rate of the pressurized liquid in the chamber is accelerated, and the flow is more uniform, so that the heat exchange between the liquid and the heat exchange pipe 15 is more sufficient, which not only improves the heat exchange efficiency, but also effectively prevents the phenomenon of local retention or temperature stratification of the heat exchange liquid in the chamber, ensures the uniformity of the heat exchange effect in the whole chamber, thereby improving the overall performance stability of the heat recovery pipe heat exchanger. In the long-term operation process of the central air conditioning system, the stable work of the pressurizing device ensures the continuous and efficient heat recovery process.

[0034] Specifically, as shown in Figure 1 and 2 The flow distributor 7 is composed of an electromagnetic throttle valve 72 and a flow sensor 71, the flow sensor 71 can monitor the fluid flow of each part of the heat recovery pipe heat exchanger in real time, and feed the data back to the controller 9, the controller 9 adjusts the opening of the electromagnetic throttle valve 72 according to the data, accurately distributes the flow of cold and hot fluid, so that it can achieve the best flow ratio and flow distribution under different working conditions. When the load of the air conditioning system changes greatly, such as high-load operation of the air conditioner in the hot summer afternoon, or low-load operation at night, the flow distributor 7 can respond quickly and reasonably allocate the fluid flow, ensure that the heat exchanger is always in a high-efficiency heat exchange state, improve the adaptability and flexibility of the system to different working conditions, and ensure that the central air conditioning system can be stably operated under various environmental conditions, while optimizing the energy utilization efficiency, further reducing the operation cost.

[0035] Specifically, as shown in Figure 4 The outer surface of the box body 1 is provided with a fan 5 through a gasket 12, the fan 5 is connected with the heat exchange pipe 15 and the internal corrugated heat conducting pipe 14 through the pipeline, the fan 5 can send the airflow needed to be used to the position of the central air conditioning duct machine through the heat exchange pipe 15 and the corrugated heat conducting pipe 14 through the air outlet pipeline 8, and drive the airflow to realize the cooling or heating of the indoor in time.

[0036] The chamber bottom end is provided with an ultrasonic generator 13, the upper surface of the box 1 is provided with a water outlet pipeline 6, and the lower surface is provided with a sewage pipeline, and the water outlet pipeline 6 and the sewage pipeline are both in communication with the internal chamber of the box 1, can periodically emit high-frequency ultrasonic waves, make the dirt on the surface of the heat exchange pipe 15 and the inner wall of the chamber vibrate and fatigue failure, thereby separating from the wall of the pipe and the wall of the chamber, being carried away by the fluid, and finally being discharged through the sewage pipeline, effectively solving the problem of fouling after long-term use of the heat exchanger, keeping the heat exchange pipe 15 clean, reducing the increase of thermal resistance, maintaining the high-efficiency heat exchange performance, greatly prolonging the maintenance period of the equipment, reducing the maintenance cost and downtime, at the same time, the water outlet pipeline 6 can ensure that the clean liquid after heat exchange is smoothly discharged, ensure the normal circulation of the whole heat exchange process, improve the reliability and stability of the heat recovery tube heat exchanger.

[0037] Specifically, as shown in Figure 2 The chamber inside the box 1 is provided with a temperature sensor 11, and the surface of the box 1 is provided with a controller 9, and the controller 9 is electrically connected with the rotating motor 4, the temperature sensor 11, the fan 5, the ultrasonic generator 13, and the electromagnetic throttle valve 72 and the flow sensor 71 in the flow distributor 7 through wires.

[0038] The temperature sensor 11 and the controller 9 constitute an intelligent monitoring and control system, the temperature sensor 11 monitors the temperature change in the chamber in real time, and transmits the data to the controller 9, and the controller 9 controls the rotating motor 4, the fan 5, the ultrasonic generator 13 and the flow distributor 7 according to the preset temperature parameters and program logic, for example, when the temperature is too high, the controller 9 can increase the rotating speed of the rotating motor 4, so that the liquid in the chamber flows faster and drives the heat in the heat exchange pipe 15; when it is detected that the fouling may affect the heat exchange efficiency, the controller 9 starts the ultrasonic generator 13 to perform the descaling operation; according to the temperature change and the air conditioning system load, the controller 9 can also accurately adjust the opening of the electromagnetic throttle valve 72 of the flow distributor 7, to ensure that the heat exchanger always operates in the best working state.

[0039] It should be noted that in this paper, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "fixed", "mounted", "connected", "connected" should be understood broadly, for example, "mounted" can be fixedly connected, or can be detachably connected, or integrally connected; "connected" can be mechanical connection, or electrical connection; "connected" can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0040] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A central air-conditioning heat recovery tube heat exchanger comprising a box (1) supported and fixed by support columns (2), characterized in that: The box (1) is internally provided with a heat exchange chamber, and heat exchange pipes (15) are spirally arranged in the chamber, the heat exchange pipes (15) are sequentially arranged from top to bottom, the heat exchange pipes (15) are internally provided with corrugated heat conducting pipes (14), the corrugated heat conducting pipes (14) and the heat exchange pipes (15) are internally provided with heat conducting medium, the corrugated heat conducting pipes (14) and the heat exchange pipes (15) are communicated with a gas outlet pipeline (8) in the box (1), the gas outlet pipeline (8) is further provided with a flow distributor (7), the box (1) is provided with a pressurizing device through a fixing plate (3) on the side surface, the pressurizing device is communicated with the bottom end of the internal chamber of the box (1) through a connecting pipeline (18), and heat exchange liquid in the chamber is discharged through a discharge pipeline (10) on the top of the box (1), and the bottom end of the chamber is provided with an ultrasonic generator (13).

2. The heat recovery tube heat exchanger of a central air conditioner according to claim 1, characterized in that: The pressurizing device comprises a shell (20), the shell (20) is provided with a water injection hole (19) and a water outlet hole (22) communicated with the inside, and the water outlet hole (22) is connected with the connecting pipeline (18) communicated with the inside of the chamber.

3. The heat recovery tube heat exchanger of a central air conditioner according to claim 2, characterized in that: The shell (20) is fixed with bearings (21) at both ends of the inner wall, the bearings (21) are penetrated by a rotating shaft (16), the rotating shaft (16) is provided with spiral blades (17) on the surface, the shell (20) is externally provided with a rotating motor (4), and the output shaft of the rotating motor (4) penetrates the shell (20) and is connected with the rotating shaft (16) in the inside.

4. The heat recovery tube heat exchanger of a central air conditioner according to claim 1, characterized in that: The flow distributor (7) is composed of an electromagnetic throttle valve (72) and a flow sensor (71).

5. The heat recovery tube heat exchanger of a central air conditioner according to claim 1, characterized in that: The box (1) is externally provided with a fan (5) through a cushion plate (12), and the fan (5) is connected with the heat exchange pipes (15) and the corrugated heat conducting pipes (14) in the inside through a pipeline.

6. The heat recovery tube heat exchanger of a central air conditioner according to claim 1, characterized in that: The upper surface of the box (1) is provided with a water outlet pipeline (6), and the lower surface is provided with a sewage discharge pipeline, the water outlet pipeline (6) and the sewage discharge pipeline are both communicated with the internal chamber of the box (1).

7. The heat recovery heat exchanger of a central air conditioner according to claim 1, wherein: The chamber in the inside of the box (1) is provided with a temperature sensor (11), the surface of the box (1) is provided with a controller (9), and the controller (9) is electrically connected with the rotating motor (4), the temperature sensor (11), the fan (5), the ultrasonic generator (13), the electromagnetic throttle valve (72) and the flow sensor (71) in the flow distributor (7) through wires.

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