All-air heat pump system

Abstract

The all-air heat pump system comprises a machine body, an air supply assembly, a first pressure difference sensor and a second pressure difference sensor, an air supply opening is formed in the machine body, the air supply assembly is arranged in the machine body, and an air outlet is opposite to the air supply opening; the first pressure difference sensor and the second pressure difference sensor are both arranged on the lower side of an air inlet of the air supply assembly, and the first pressure difference sensor is used for detecting the air pressure difference value of the air inlet of the air supply assembly and the air supply outlet. The second pressure difference sensor is used for detecting the air pressure difference value between the air supply outlet and the outside of the machine body, and the first pressure difference sensor and the second pressure difference sensor are electrically connected with the air supply assembly. The two sets of sensors monitor the air pressure cooperatively, a comprehensive and accurate air pressure monitoring system is formed, it is ensured that detected data are accurate, and then the air supply amount is accurately adjusted.

Description

Technical Field

[0001] The present application relates to the technical field of air systems, and in particular to an all-air heat pump system. Background Art

[0002] In environmental control systems, the all-air heat pump system is a widely used air conditioning method that centrally processes and distributes air to meet internal requirements for temperature, humidity and air quality. The efficient operation of this system depends on the precise monitoring and control of multiple key parameters, among which the effective monitoring of wind pressure plays an important role. Wind pressure is not only directly related to the efficiency and stability of air flow, but also an important basis for evaluating system performance, optimizing energy use and preventing potential failures.

[0003] However, traditional wind pressure monitoring solutions face several challenges, which, to a certain extent, limit the improvement of system performance and the optimization of user experience. The primary problem is that the layout and fixing method of sensors are not centralized and unified enough. Due to historical design habits or technical limitations, sensors are often installed in different parts of the system. This decentralized layout not only increases maintenance costs, but may also lead to inconsistencies and delays in monitoring data, making it difficult for the system to obtain comprehensive and accurate real-time wind pressure information.

[0004] In addition, the unreasonable setting of detection points is also a significant defect in traditional solutions. The lack of scientific point selection basis and standardized setting process has led to the neglect of wind pressure changes in some key areas, while other non-key areas may be over-monitored. This unbalanced monitoring strategy directly affects the accuracy and representativeness of the data. Therefore, even if the system collects a large amount of data, it is difficult to accurately reflect the actual operating status of the entire wind system, and thus cannot provide a reliable basis for real-time adjustment of the air supply volume. Summary of the invention

[0005] The purpose of the embodiments of the present application is to provide a full air heat pump system, which monitors the wind pressure through two groups of sensors to form a comprehensive and accurate wind pressure monitoring system, ensure the accuracy of the detected data, and then accurately adjust the air supply volume.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] On the one hand, a full air heat pump system is provided, comprising: a fuselage, an air supply component, a first pressure difference sensor and a second pressure difference sensor, wherein the fuselage is provided with an air supply outlet, the air supply component is arranged inside the fuselage, and the air outlet is opposite to the air supply outlet, the first pressure difference sensor and the second pressure difference sensor are both arranged on the lower side of the air inlet of the air supply component, wherein the first pressure difference sensor is used to detect the wind pressure difference between the air inlet of the air supply component and the air supply outlet, and the second pressure difference sensor is used to detect the wind pressure difference between the air supply outlet and the outside of the fuselage, and the first pressure difference sensor and the second pressure difference sensor are electrically connected to the air supply component, respectively.

[0008] Furthermore, the first differential pressure sensor is provided with a first detection point and a second detection point, the first detection point is arranged at the lower side of the air inlet of the air supply component, and the second detection point is arranged at the air supply outlet.

[0009] Furthermore, a vertical distance between the first detection point and the air inlet of the air supply component is S, wherein 100mm≤S≤150mm.

[0010] Furthermore, the second differential pressure sensor is provided with a third detection point and a fourth detection point, the third detection point is arranged outside the fuselage, and the fourth detection point is arranged at the air outlet.

[0011] Furthermore, the fuselage is provided with a through hole, a pipe is passed through the through hole, and the pipe horizontally extends to the outside of the fuselage as the third detection point. The vertical distance between the through hole and the second differential pressure sensor is H, wherein 90mm≤H≤100mm.

[0012] Furthermore, the second detection point and the fourth detection point are horizontally spaced apart at the air supply outlet, and shielding structures are disposed above the second detection point and the fourth detection point.

[0013] Furthermore, the first differential pressure sensor is connected to the first detection point and the second detection point respectively through pipes, and the second differential pressure sensor is connected to the third detection point and the fourth detection point respectively through pipes, and the pipes are transparent hoses.

[0014] Furthermore, a wiring structure and a plurality of fixing clamps are arranged in the fuselage, the wiring structure is provided with a wire groove for the pipeline to pass through, and the fixing clamps clamp the pipeline to the fuselage.

[0015] Furthermore, the interior of the fuselage is divided into an air supply channel and an air inlet channel arranged on the left and right, the lower part of the air inlet channel is connected to the lower part of the air supply channel through a heat exchanger, the air supply assembly is arranged in the middle of the air supply channel, the air supply outlet is connected to the top of the air supply channel, and a bracket is provided on the inner wall surface of the air supply channel facing away from the air inlet channel, and the first differential pressure sensor and the second differential pressure sensor are arranged on the bracket at intervals.

[0016] Furthermore, the fuselage is provided with an inspection port opposite to the first differential pressure sensor and the second differential pressure sensor, and a detachable inspection door is provided at the inspection port.

[0017] The beneficial effects of the present application are as follows: the scheme sets up an air supply component in the fuselage, and at the same time equips the lower side of the air inlet of the air supply component with a first differential pressure sensor and a second differential pressure sensor, forming a comprehensive and accurate wind pressure monitoring system. The first differential pressure sensor is responsible for detecting the wind pressure difference between the air inlet and the air supply outlet of the air supply component, reflecting the loss of wind pressure during the air supply process; while the second differential pressure sensor detects the wind pressure difference between the air supply outlet and the outside of the fuselage (i.e., the external environment), reflecting the system's adaptability to the external environment and the external resistance that may be encountered during the air supply process. These two sets of sensors feed back the real-time detected wind pressure data to the control unit of the air supply component. The control unit analyzes the data according to the preset algorithm and threshold value to achieve precise adjustment of the air supply volume.

[0018] This solution ensures the consistency and real-time nature of monitoring data through centralized sensor layout and scientific point selection, and improves the accuracy and representativeness of data. At the same time, based on accurate wind pressure data, the system can realize intelligent adjustment of air supply volume, which not only improves air supply efficiency, but also optimizes energy use and reduces operating costs. In addition, real-time monitoring of wind pressure changes can also timely detect and warn of potential faults, such as blockage of air supply ducts and reduced fan performance, which helps to take measures in advance to avoid faults and ensure the stable operation of the system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present application is further described in detail below based on the drawings and embodiments.

[0020] Figure 1 The internal schematic diagram of the all-air heat pump system described in the embodiment of the present application Figure 1 ;

[0021] Figure 2 For the embodiment of this application Figure 1 The enlarged schematic diagram of point A in the middle;

[0022] Figure 3 The internal schematic diagram of the all-air heat pump system described in the embodiment of the present application Figure 2 ;

[0023] Figure 4 For the embodiment of this application Figure 2 The enlarged schematic diagram of point B in the middle;

[0024] Figure 5 The internal schematic diagram of the all-air heat pump system described in the embodiment of the present application Figure 3 ;

[0025] Figure 6 For the embodiment of this application Figure 5 The enlarged schematic diagram of the center C;

[0026] Figure 7 This is a cross-sectional view of the all-air heat pump system described in an embodiment of the present application.

[0027] In the figure: 1. body; 101. air supply port; 2. air supply assembly; 3. first differential pressure sensor; 301. first detection point; 302. second detection point; 4. second differential pressure sensor; 401. third detection point; 402. fourth detection point; 5. heat exchanger; 6. pipeline; 7. wire trough; 8. rubber protective cover; 9. shielding structure; 10. bracket. DETAILED DESCRIPTION

[0028] In order to make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved more clearly, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of this application.

[0029] In the description of this application, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0030] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] like Figure 1-Figure 7 As shown, the present embodiment provides a full air heat pump system, comprising: a fuselage 1, an air supply component 2, a first pressure difference sensor 3 and a second pressure difference sensor 4, the fuselage 1 is provided with an air supply port 101, the air supply component 2 is arranged in the fuselage 1, and the air outlet is opposite to the air supply port 101, the first pressure difference sensor 3 and the second pressure difference sensor 4 are both arranged on the lower side of the air inlet of the air supply component 2, wherein the first pressure difference sensor 3 is used to detect the wind pressure difference between the air inlet of the air supply component 2 and the air supply port 101, the second pressure difference sensor 4 is used to detect the wind pressure difference between the air supply port 101 and the outside of the fuselage 1, and the first pressure difference sensor 3 and the second pressure difference sensor 4 are electrically connected to the air supply component 2, respectively.

[0032] Based on the above scheme, when the all-air heat pump system is started, the air supply component 2 starts to work, by sucking in air, and sending it out from the air supply port 101 through the air supply component 2 after processing, so as to meet the indoor temperature, humidity and air quality requirements. The first pressure difference sensor 3 is located at the lower side of the air inlet of the air supply component 2, and is responsible for detecting the wind pressure difference between the air inlet of the air supply component 2 and the air supply port 101. This difference reflects the wind pressure change inside the air supply component 2, especially the loss of wind pressure during the air supply process. The second pressure difference sensor 4 is also located at the lower side of the air inlet of the air supply component 2. It detects the wind pressure difference between the air supply port 101 and the outside of the fuselage 1 (i.e., the external environment). This difference reflects the adaptability of the system to the external environment and the external resistance that may be encountered during the air supply process. The two groups of sensors transmit the detected wind pressure difference to the control unit of the air supply component 2 in real time. The control unit analyzes the operating status of the system, including wind pressure stability, air supply efficiency, etc., based on these data, combined with the preset algorithm and threshold. Based on the data analysis results, the control unit can make real-time adjustments to the air supply volume of the air supply component 2. For example, if it is detected that the internal wind pressure loss of the air supply component 2 is too large, the air supply volume may need to be increased to maintain a stable air supply effect; if the external resistance increases, the air supply strategy may need to be adjusted to adapt to environmental changes.

[0033] In this scheme, firstly, by setting both sets of differential pressure sensors at the lower side of the air inlet of the air supply component 2, the centralized layout of the sensors is realized. This layout not only reduces the maintenance cost, but also ensures the consistency and real-time nature of the monitoring data, so that the system can grasp the wind pressure changes more comprehensively. Then, by reasonably setting the detection points (i.e., the positions of the first differential pressure sensor 3 and the second differential pressure sensor 4), and adopting a standardized setting process, the accuracy and representativeness of the monitoring data are ensured. This scientific point selection basis enables the system to more accurately reflect the actual operating status of the entire wind system. Secondly, based on the precise wind pressure data provided by the two sets of sensors, the system can realize precise adjustment of the air supply volume, which not only improves the air supply efficiency, but also optimizes energy use and reduces operating costs. Finally, by real-time monitoring of wind pressure changes, the system can promptly detect and warn of potential faults, such as blockage of the air supply duct 6, decreased fan performance, etc., which helps to take measures in advance to avoid faults and ensure the stable operation of the system.

[0034] Furthermore, the first differential pressure sensor 3 is provided with a first detection point 301 and a second detection point 302, wherein the first detection point 301 is arranged at the lower side of the air inlet of the air supply component 2, and the second detection point 302 is arranged at the air supply port 101. The first detection point 301 is carefully arranged at the lower side of the air inlet of the air supply component 2, where the space is relatively large and there are no obstructions, and the wind pressure data at the air inlet of the air supply component 2 can be easily read, ensuring that the first detection point 301 can accurately capture the initial wind pressure state of the air before entering the air supply component 2, and providing a reliable benchmark for the subsequent differential pressure calculation. The second detection point 302 is cleverly set at the top of the inner wall of the air supply port 101. The choice of this position has also been carefully considered: first, it is unobstructed and has a certain distance from the air supply component 2, ensuring the stability of the airflow organization; second, because it is located at the outlet of the air supply port 101, it can accurately obtain the wind pressure information when the air is processed by the air supply component 2 and is about to be sent into the room. This design enables the second detection point 302 to more accurately reflect the wind pressure state after the air is supplied, providing strong data support for the adjustment of the system's air supply strategy. By comparing the data of the first detection point 301 and the second detection point 302, the system can accurately calculate the pressure difference before and after the air supply component 2. This pressure difference data is of great significance for evaluating the performance of the air supply component 2, monitoring wind pressure loss, and optimizing the air supply strategy. It can help the system to achieve accurate adjustment of the air supply volume, improve air supply efficiency and energy efficiency, thereby ensuring the stable operation of the system and optimizing user experience.

[0035] Specifically, the vertical distance between the first detection point 301 and the air inlet of the air supply component 2 is S, where 100mm≤S≤150mm. Such a setting is intended to ensure that the first detection point 301 can accurately capture the wind pressure data at the air inlet of the air supply component 2, while avoiding measurement errors caused by too close or too far distances.

[0036] More specifically, in this embodiment, the value of S is set to 124 mm. This value is selected after repeated experiments and verifications. It can ensure the measurement accuracy while taking into account the convenience and practicality of installation. When the first detection point 301 is located at this height, it can effectively avoid the turbulent area near the air inlet, thereby ensuring that the wind pressure data read is more stable and reliable.

[0037] At the same time, the second differential pressure sensor 4 is provided with a third detection point 401 and a fourth detection point 402. The third detection point 401 is arranged outside the fuselage 1, and the fourth detection point 402 is arranged at the air outlet 101. The third detection point 401 is arranged outside the fuselage 1. There is no shielding outside the fuselage 1, and the pressure value outside the fuselage 1 can be easily read. Such a design enables the third detection point 401 to accurately capture the wind pressure condition of the external environment, and provides the system with important external wind pressure data, which is of great significance for evaluating the adaptability of the system to the external environment, monitoring the change of external wind pressure, and optimizing the air supply strategy. The setting of the fourth detection point 402 is similar to the second detection point 302, and it is arranged at the air outlet 101. The first differential pressure sensor 3 can accurately capture the wind pressure difference between the air inlet and the air outlet 101 of the air supply component 2 through the setting of its first detection point 301 and the second detection point 302, while the second differential pressure sensor 4 can realize the comprehensive monitoring of the wind pressure outside the fuselage 1 and the air outlet 101 through the setting of its third detection point 401 and the fourth detection point 402, and can accurately capture the wind pressure conditions inside and outside the fuselage 1. By combining the monitoring results of the first differential pressure sensor 3 and the second differential pressure sensor 4, the system can more comprehensively understand the changes in wind pressure. This combination not only improves the accuracy of wind pressure monitoring, but also enables the system to more accurately evaluate the performance of the air supply component 2, monitor wind pressure loss, and optimize air supply strategies. At the same time, since the system can obtain the pressure difference data inside and outside the fuselage 1 and before and after air supply in real time, it can timely discover and warn potential faults, such as blockage of the air supply duct 6 and reduced fan performance, thereby ensuring the stable operation of the system.

[0038] In addition, the fuselage 1 is provided with a through hole, and the through hole is penetrated by a pipe 6, and the pipe 6 extends horizontally to the outside of the fuselage 1 as the third detection point 401, and the vertical distance between the through hole and the second differential pressure sensor 4 is H, wherein 90mm≤H≤100mm. The vertical distance H between the through hole and the second differential pressure sensor 4 is precisely set, and the value of H is strictly controlled within the range of 90mm to 100mm, and in this embodiment, the specific value of H is set to 94mm. The selection of this distance is the result of repeated experiments and verifications, and it can ensure the measurement accuracy while taking into account the convenience and practicality of installation. Choosing to open a through hole at this position and fix the detection head with screws as the third detection point 401 has the following advantages: first, this position is close to the second differential pressure sensor 4, which makes the connection of the pipeline 6 more convenient and reduces the complexity and cost of the installation process; second, because the position and height of the through hole are carefully designed, it can ensure that the third detection point 401 can accurately capture the wind pressure data outside the fuselage 1, providing the system with important external wind pressure information; finally, such a design also improves the scalability and flexibility of the system, and provides convenience for possible system upgrades or modifications in the future.

[0039] It should be noted that if Figure 7 As shown, the vertical distance S=124mm between the first detection point 301 and the air inlet of the air supply component 2, and the vertical distance H=94mm between the through hole and the second differential pressure sensor 4, these two data points are not only important in their own way, but also have a certain correlation between them, and together constitute the key factors for optimizing system performance. The setting of these two vertical distances helps to ensure that the airflow has sufficient stability and uniformity when passing through the air supply component 2 and the detection point. The distance S=124mm allows the airflow to have a certain buffer and adjustment space before entering the air supply component 2, reducing turbulence and eddy currents, thereby improving the accuracy of the measurement. The distance H=94mm ensures that the second differential pressure sensor 4 can work in a relatively stable airflow environment, avoiding measurement errors caused by airflow fluctuations. Reasonable vertical distance settings help to improve the overall efficiency of the system. By optimizing the airflow path and reducing unnecessary energy losses, the system can achieve higher air supply efficiency with lower energy consumption, which is of great significance for energy conservation, emission reduction and reducing operating costs. The selection of these two distances also takes into account the maintainability of the system. For example, a distance of S=124 mm provides sufficient operating space for technicians to easily inspect and maintain the air supply assembly 2. A distance of H=94 mm makes it easier to replace and calibrate the second differential pressure sensor 4.

[0040] In addition, the vertical distance setting of the first detection point 301 and the second differential pressure sensor 4 is crucial to ensure the measurement accuracy. A distance that is too close or too far may lead to instability of the airflow or increase in measurement errors. The two distance values ​​obtained by accurate calculation and testing can minimize the measurement error and improve the accuracy and reliability of the system. Reasonable vertical distance setting helps to optimize the overall performance of the system. By adjusting the airflow path and reducing energy loss, the system can operate with higher efficiency to meet the different needs of users. By optimizing airflow stability and system efficiency, users can enjoy a more comfortable and efficient air supply experience, and the convenient maintenance design also reduces the user's maintenance cost and operating difficulty, and improves overall user satisfaction.

[0041] In some embodiments, the second detection point 302 and the fourth detection point 402 are horizontally spaced at the air outlet 101, and the two detection points are horizontally spaced at the air outlet 101 to ensure that the wind pressure changes during the air supply process can be fully and accurately captured. At the same time, in order to further improve the accuracy and reliability of the measurement, we set a shielding structure 9 above the second detection point 302 and the fourth detection point 402. The shielding structure 9 is made of lightweight and corrosion-resistant materials to ensure that it can maintain good performance during long-term use. In terms of shape design, the shielding structure 9 has been carefully optimized, which can effectively block dust, foreign matter, etc. from entering the detection port, thereby avoiding interference or damage to the wind pressure measurement; at the same time, it will not have a significant impact on the wind pressure measurement itself, ensuring the accuracy and reliability of the measurement results. In addition, the shielding structure 9 can be regularly maintained and cleaned, thereby effectively removing accumulated dust and foreign matter, ensuring that it always maintains a good working condition. This easy-to-maintain design not only extends the service life of the shielding structure 9, but also improves the stability and reliability of the entire system.

[0042] Furthermore, the first differential pressure sensor 3 is connected to the first detection point 301 and the second detection point 302 respectively through the pipe 6, and the second differential pressure sensor 4 is connected to the third detection point 401 and the fourth detection point 402 respectively through the pipe 6, and the pipe 6 is a transparent hose. The transparent material of the transparent hose can visually observe whether there is foreign matter or blockage in the pipe, which is very important for timely discovery and resolution of problems, because any foreign matter or blockage in the pipe 6 may have a serious impact on the accuracy of wind pressure measurement. By regularly observing the transparent hose, it can be ensured that the pipe 6 is always unobstructed, thereby ensuring the accuracy and reliability of the measurement results. The transparent hose is also easy to install through various structures. In a complex system layout, the pipe 6 often needs to pass through a wall, partition or other structure. Due to its softness and flexibility, the transparent hose can more easily adapt to these installation requirements, reducing the complexity and cost of the installation process.

[0043] In addition, a transparent hard hose with a diameter of 8mm is specially selected for connection. This size selection is carefully considered, which can not only meet the needs of data transmission, but also ensure the strength and durability of the pipe 6. At the same time, the hard hose has better shape retention than the pure hose, and can maintain a stable connection state during long-term use.

[0044] Furthermore, a wiring structure and a plurality of fixing clips are provided in the fuselage 1, and the wiring structure is provided with a wire groove 7 for the pipe 6 to pass through, and the fixing clip clamps the pipe 6 on the fuselage 1. The wiring structure is provided with a wire groove 7 for the pipe 6 to pass through, and these wire grooves 7 provide a clear path for the arrangement of the pipe 6. The design of the wire groove 7 not only ensures the neat arrangement of the pipes 6, but also avoids the crossing and interference between the pipes 6, thereby improving the overall performance and reliability of the system. In addition, the wire groove 7 is also designed with a protective cover, which effectively prevents the pipe from being bent or damaged due to external forces, and further ensures the accuracy and stability of the wind pressure signal transmission. During the arrangement of the pipe 6, the situation of bending in the middle is strictly avoided. The bent pipe 6 may cause the attenuation or distortion of the wind pressure signal, thereby affecting the accuracy of the measurement. Therefore, it is necessary to ensure that the pipe 6 always remains in a straight state during the arrangement process to reduce the loss during the signal transmission process. When the pipe 6 needs to pass through the sheet metal position, a rubber protective cover 8 is specially provided. These rubber protective sleeves 8 can effectively prevent the sheet metal from cutting the pipeline 6, thereby ensuring the safety and integrity of the pipeline 6.

[0045] At the same time, in order to further fix the pipe 6, a plurality of fixing clips are provided on the fuselage 1. These fixing clips can clamp the pipe 6 on the fuselage 1 to prevent it from shaking or falling off during operation. The use of the fixing clips ensures the stability and reliability of the pipe 6, thereby improving the quality of wind pressure signal transmission.

[0046] It is worth mentioning that the interior of the fuselage 1 is divided into an air supply channel and an air inlet channel arranged on the left and right. The lower part of the air inlet channel is connected to the lower part of the air supply channel through a heat exchanger 5. The air supply component 2 is arranged in the middle of the air supply channel. The air outlet 101 is connected to the top of the air supply channel. The inner wall surface of the air supply channel away from the air inlet channel is provided with a bracket 10. The first differential pressure sensor 3 and the second differential pressure sensor 4 are arranged on the bracket 10 at intervals. The lower part of the air inlet channel is connected to the lower part of the air supply channel through the heat exchanger 5. This design enables the incoming air to be filtered and pre-treated, and then heat exchanged through the heat exchanger 5, thereby adjusting the temperature and humidity of the air supply, which not only improves the comfort of the air supply, but also enables the system to be intelligently adjusted according to changes in the external environment to meet the different needs of users. The air supply component 2 is arranged in the middle of the air supply channel, ensuring that the airflow can be evenly and stably delivered to the air outlet 101. The air supply port 101 is connected to the top of the air supply channel. Such a layout enables the air supply to directly and efficiently cover the target area.

[0047] The key is that when the air supply channel is located on the left side and the air inlet channel is located on the right side, a bracket 10 is arranged on the left side of the air supply channel, and the first differential pressure sensor 3 and the second differential pressure sensor 4 are arranged on this bracket 10 at intervals. Such a design not only makes full use of the space inside the fuselage 1, but also ensures that the differential pressure sensor can be in a position where the airflow organization is stable, thereby improving the accuracy and reliability of the measurement. Both differential pressure sensors are placed on the left side of the lower part of the air supply assembly 2. The choice of this layout is well considered. The internal airflow organization here is stable, the space is well utilized, there is no obstruction, and it is convenient to run the pipe to the outside of the fuselage 1 to arrange the detection points. This not only improves the overall performance and reliability of the system, but also brings a more convenient and efficient use experience to users.

[0048] In addition, since the air supply channel is located on the left side and the air inlet channel is on the right side of the air supply channel, the first differential pressure sensor 3 and the second differential pressure sensor 4 are installed on the left side of the air supply channel instead of the right side. This means that when the air is heated by the heat exchanger 5, the wind blowing up flows close to the left side, which means that it is easier to contact the first differential pressure sensor 3 and the second differential pressure sensor 4 on the left side. If they are installed on the right side, there will easily be blind spots, resulting in inaccurate detection.

[0049] It should be noted that when the air inlet channel is set on the left and the air supply channel is set on the right, the bracket needs to be installed on the right side of the air supply channel, that is, the side away from the air inlet channel, so as to improve the accuracy of the detection.

[0050] The bracket 10 is arranged at a height of 271 mm, and is arranged at this location to facilitate observation, replacement and maintenance of the first differential pressure sensor 3 and the second differential pressure sensor 4 .

[0051] At the same time, the fuselage 1 is provided with an inspection port opposite to the first differential pressure sensor 3 and the second differential pressure sensor 4, and a detachable inspection door is provided at the inspection port. The provision of the inspection port enables technicians to easily access key components such as the first differential pressure sensor 3 and the second differential pressure sensor 4, so as to conveniently perform inspection, maintenance and replacement, which not only shortens the maintenance time, but also reduces the maintenance cost, and improves the overall reliability and service life of the system. The detachable inspection door equipped at the inspection port brings great convenience to the operation. The design of the inspection door enables technicians to quickly open and close the inspection port without using complex tools or equipment, which not only improves work efficiency but also ensures safety during the inspection process.

[0052] In addition, the detachability of the inspection door also means that the user can make flexible adjustments according to actual needs. For example, when frequent inspection and maintenance are required, the user can choose to keep the inspection door open so as to observe and operate at any time. When inspection and maintenance are not required, the user can close the inspection door to keep the fuselage 1 clean and beautiful.

[0053] In the description of this article, it should be understood that the terms "upper", "lower", "left", "right", etc., and other directions or positional relationships are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of this application. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0054] In the description of this specification, the description with reference to the terms "an embodiment", "example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example.

[0055] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method 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 methods that can be understood by those skilled in the art.

[0056] The technical principles of the present application are described above in conjunction with specific embodiments. These descriptions are only for explaining the principles of the present application and cannot be interpreted as limiting the scope of protection of the present application in any way. Based on the explanations herein, those skilled in the art can think of other specific implementation methods of the present application without creative work, and these methods will fall within the scope of protection of the present application.

Claims

1. An all-air heat pump system, characterized in that: include: A fuselage (1), an air supply assembly (2), a first pressure difference sensor (3) and a second pressure difference sensor (4), wherein the fuselage (1) is provided with an air supply port (101), the air supply assembly (2) is arranged in the fuselage (1), and the air outlet is opposite to the air supply port (101), the first pressure difference sensor (3) and the second pressure difference sensor (4) are both arranged at the lower side of the air inlet of the air supply assembly (2), wherein the first pressure difference sensor (3) is used to detect the wind pressure difference between the air inlet of the air supply assembly (2) and the air supply port (101), and the second pressure difference sensor (4) is used to detect the wind pressure difference between the air supply port (101) and the outside of the fuselage (1), and the first pressure difference sensor (3) and the second pressure difference sensor (4) are respectively electrically connected to the air supply assembly (2).

2. The all-air heat pump system according to claim 1, characterized in that: The first differential pressure sensor (3) is provided with a first detection point (301) and a second detection point (302), wherein the first detection point (301) is arranged at the lower side of the air inlet of the air supply component (2), and the second detection point (302) is arranged at the air supply outlet (101).

3. The all-air heat pump system according to claim 2, characterized in that: The vertical distance between the first detection point (301) and the air inlet of the air supply component (2) is S, where 100mm≤S≤150mm.

4. The all-air heat pump system according to claim 2, characterized in that: The second differential pressure sensor (4) is provided with a third detection point (401) and a fourth detection point (402), wherein the third detection point (401) is arranged outside the fuselage (1), and the fourth detection point (402) is arranged at the air supply port (101).

5. The all-air heat pump system according to claim 4, characterized in that: The fuselage (1) is provided with a through hole, a pipe (6) is passed through the through hole, and the pipe (6) extends horizontally to the outside of the fuselage (1) as the third detection point (401), and the vertical distance between the through hole and the second differential pressure sensor (4) is H, wherein 90 mm ≤ H ≤ 100 mm.

6. The all-air heat pump system according to claim 4, characterized in that: The second detection point (302) and the fourth detection point (402) are arranged horizontally at intervals on the air supply port (101), and shielding structures (9) are arranged above the second detection point (302) and the fourth detection point (402).

7. The all-air heat pump system according to claim 4, characterized in that: The first differential pressure sensor (3) is respectively connected to the first detection point (301) and the second detection point (302) through a pipeline (6); the second differential pressure sensor (4) is respectively connected to the third detection point (401) and the fourth detection point (402) through a pipeline (6); and the pipelines (6) are all transparent hoses.

8. The all-air heat pump system according to claim 7, characterized in that: A wiring structure and a plurality of fixing clamps are arranged in the fuselage (1); the wiring structure is provided with a wire groove (7) for the pipe (6) to pass through; and the fixing clamps clamp the pipe (6) onto the fuselage (1).

9. The all-air heat pump system according to any one of claims 1 to 8, characterized in that: The interior of the fuselage (1) is divided into an air supply channel and an air inlet channel arranged on the left and right, the lower part of the air inlet channel is connected to the lower part of the air supply channel through a heat exchanger (5), the air supply component (2) is arranged in the middle of the air supply channel, the air supply port (101) is connected to the top of the air supply channel, and a bracket (10) is arranged on the inner wall surface of the air supply channel away from the air inlet channel, and the first differential pressure sensor (3) and the second differential pressure sensor (4) are arranged on the bracket (10) at intervals.

10. The all-air heat pump system according to any one of claims 1 to 8, characterized in that: The fuselage (1) is provided with an inspection port located opposite to the first differential pressure sensor (3) and the second differential pressure sensor (4), and a detachable inspection door is provided at the inspection port.

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