Built-in flow guide structure for air conditioner compressor liquid accumulator

Abstract

The application discloses a built-in flow guide structure for an air conditioner compressor liquid accumulator and relates to the technical field of refrigeration equipment. The built-in flow guide structure comprises a liquid storage tank, an air inlet pipe and an air outlet pipe are inserted into the end of the liquid storage tank, and an adjusting assembly is arranged in the liquid storage tank and used for adjusting the concentration of gaseous refrigerant entering the air outlet pipe. The technical key points are as follows: a bellows pipe is used as the extension structure of the air outlet pipe, and the end of the bellows pipe is driven by a lifter to move up and down, so that the horizontal height of the end of the air outlet pipe is adjusted; and due to the action of gravity, the concentration of the gaseous refrigerant gradually decreases from bottom to top, so that the position of the air outlet pipe can be adjusted according to the content of the liquid refrigerant, thereby avoiding excessive accumulation of the refrigerant in the liquid accumulator, effectively solving the technical problem that the existing compressor liquid accumulator cannot dynamically control the content of the liquefied refrigerant in the liquid accumulator during use, and further realizing the control of the liquid refrigerant and improving the stability of the refrigerant circulation.

Description

Technical Field

[0001] This invention relates to the field of refrigeration equipment technology, and in particular to a built-in flow guiding structure for an air conditioning compressor receiver. Background Technology

[0002] A low-pressure compressor mainly consists of four parts: a compression mechanism, a motor, a compressor housing, and a liquid receiver. The liquid receiver connects the outlet of the air conditioner evaporator and the compression mechanism. It is usually eccentrically positioned on one side of the compressor, with a refrigerant connection pipe at the upper end, which is connected to the outlet of the evaporator through a refrigerant piping. A refrigerant flow path pipe is provided at the lower end, which is fixed to the compressor through a refrigerant suction pipe to prevent liquid refrigerant from the outlet of the air conditioner evaporator from entering the compressor, thereby affecting the reliability of the compressor. Currently, Chinese patent application number CN202410816994.8 discloses a compressor receiver, including: a receiver shell with a filter on the upper inner side; an outlet pipe and a stabilizing mechanism, with a stabilizing mechanism at the bottom of the receiver shell for stable installation and support of the outlet pipe, and multiple outlet pipes welded through the middle of the stabilizing mechanism; and a protective mechanism at the top of the outlet pipe to cover the surface of the outlet pipe and prevent the airflow from continuously impacting the inner pipe wall and causing vibration. Although the outlet pipe can be stably installed and fixed by the mounting base and the stabilizing frame, and the vibration of the gaseous refrigerant impacting the outlet pipe when entering the compressor can be reduced and isolated by the corrugated sleeve and elastic element, a crucial issue is overlooked: the liquid refrigerant stored inside the receiver is dynamically changing with the amount of gaseous refrigerant liquefied. If the gaseous refrigerant continues to liquefy, while the amount of liquid refrigerant evaporating inside the receiver is relatively small, this leads to a continuous increase in liquid refrigerant, eventually causing the liquid refrigerant to directly enter the compressor.

[0003] However, during the implementation of the above technical solution, at least the following technical problems were discovered: The inability to dynamically control the content of liquefied refrigerant in the receiver: Existing compressor receivers deliver gaseous refrigerant through the inlet pipe, where the liquefied refrigerant accumulates at the bottom. Under air compression, the gaseous refrigerant above the liquid refrigerant is transported to the outlet pipe and then enters the compressor for compression. While this method prevents liquid refrigerant from entering the compressor, the concentration and quantity of refrigerant entering the receiver vary depending on factors such as temperature and power. This leads to changes in the refrigerant content entering the air conditioning cycle. Therefore, if the refrigerant content entering the receiver exceeds the amount discharged, refrigerant accumulates, gradually submerging the outlet and eventually entering the compressor. To address this, we propose a built-in flow guiding structure for the air conditioning compressor receiver. Summary of the Invention

[0004] In view of the above-mentioned problems in the prior art, the purpose of the present invention is to provide a built-in flow guiding structure for an air conditioner compressor receiver, which solves the technical problem that the content of liquefied refrigerant in the receiver cannot be dynamically adjusted during use.

[0005] To solve the above problems, the technical solution adopted by the present invention is as follows: An internal flow guiding structure for an air conditioner compressor receiver, the flow guiding structure comprising: The liquid storage tank has an inlet pipe and an outlet pipe connected to its top and bottom, respectively. The inlet pipe delivers gaseous refrigerant into the liquid storage tank and then discharges it through the outlet pipe. An adjustment component, located in the liquid storage tank, is used to adjust the concentration of gaseous refrigerant entering the outlet pipe; The regulating component includes a bellows connected to the end of the outlet pipe, and the bellows is located at the end of the outlet pipe that is inserted into the liquid storage tank. The liquid storage tank is equipped with a lifter, which drives the end of the bellows to move up and down. When the outlet pipe exhausts gas, it absorbs the gaseous refrigerant around the location of the end of the bellows.

[0006] Preferably, a gas distribution plate is installed inside the liquid storage tank, and the gas distribution plate is located between the gas outlet pipes. The edge of the gas distribution plate has several notches. When the gaseous refrigerant enters the liquid storage tank along the gas inlet pipe, the gaseous refrigerant enters the space below the liquid storage tank through the notches on the edge of the gas distribution plate. The gas distribution plate has a guide edge at the notch on its edge, and the guide edge is inclined toward the inner wall of the liquid storage tank, so as to guide the liquefied refrigerant along the inner wall of the liquid storage tank to the bottom for storage.

[0007] Preferably, the lifting device includes a fixed base plate fixed to the inner wall of the storage tank, and a guide column is connected to the center of the fixed base plate. A sliding fastener is sleeved on the outside of the guide column, and the fastener is connected to the end of the bellows. The guide column is equipped with a driver for moving the fixing component up and down.

[0008] Preferably, the fastener includes a support frame sleeved on the outside of the guide column, and the outside of the support frame is provided with a semi-circular retaining ring. The inner side of the support frame is symmetrically provided with two pins, and the pins are inserted into the corresponding grooves on the outer wall of the guide column. The grooves extend along the length of the guide column. The corrugated pipe is connected to an outer pipe at its end, and the outer pipe is provided with a retaining edge. The retaining ring is engaged with the outside of the outer pipe and is located below the retaining edge.

[0009] Preferably, the driver includes a floating disk sleeved on the outside of the guide column, and the floating disk has a cavity inside, and floats above the liquid refrigerant through the cavity. Two sliders are symmetrically arranged at the center of the floating disk, and the floating disk is inserted into the sliding groove on the outside of the guide column through the sliders. The bottom of the slider is connected to the bottom of the pin by a traction rope, and the traction rope passes around the pivot at the bottom of the guide column. As the floating disc rises, the support frame moves downward along the guide column under the influence of the traction rope.

[0010] Preferably, an inner spring is sleeved inside the bellows, and the inner spring is always in a compressed state. When the floating disc descends, the retaining ring moves upward under the action of the inner spring. Among them, the sum of the buoyancy of the liquid refrigerant on the floating disc and the weight of the bellows is greater than the elastic force of the inner spring.

[0011] Preferably, the driver includes a motor connected to the top of the guide column, and the output shaft of the motor is connected to a screw inserted into the guide column, the screw being able to rotate under the drive of the motor; The support frame has a threaded cylinder at its center, and the screw and the threaded cylinder are connected by a thread. When the screw rotates, it can drive the support frame to move up and down.

[0012] A method for regulating the flow of liquid receiver in an air conditioning compressor, the method comprising: Gaseous refrigerant is introduced into the liquid storage tank through the inlet pipe. The liquefied refrigerant components settle to the bottom of the liquid storage tank to form a liquid refrigerant layer. The gaseous refrigerant in the tank forms a distribution state in which the concentration gradually decreases from bottom to top under the action of gravity. The bellows end connected to the end of the air outlet pipe is moved up and down vertically by the lifting device to adjust the horizontal height of the air inlet end of the air outlet pipe. Adjust the height of the inlet end according to the liquid level of the liquid refrigerant in the storage tank, extract the gaseous refrigerant in the corresponding height area and discharge it through the outlet pipe, and dynamically regulate the amount of liquid refrigerant stored in the storage tank.

[0013] Preferably, the process of moving the end of the bellows up and down by the lifting device is as follows: A floating disc with an internal cavity is fitted onto the outside of the guide column, so that the floating disc floats on the surface of the liquid refrigerant and rises and falls synchronously along the guide column as the liquid level of the liquid refrigerant changes. When the liquid refrigerant level rises, the floating disc moves upward along the guide column, pulling the traction rope that passes around the bottom pivot of the guide column. The other end of the traction rope pulls the support frame connected to the end of the bellows to slide downward along the guide column, compressing the bellows and causing the inlet end of the outlet pipe to move down to the high concentration of gaseous refrigerant area. When the liquid refrigerant level drops, the float moves downward along the guide column, the traction rope becomes slack, the pre-compressed inner spring inside the bellows rebounds and extends, pushing the end of the bellows and the support frame to slide upward along the guide column, causing the inlet end of the outlet pipe to move upward to the low-concentration gaseous refrigerant area.

[0014] Preferably, the process of moving the end of the bellows up and down by the lifting device is as follows: The liquid level parameters of the liquid refrigerant inside the storage tank are acquired in real time, and control commands are generated based on the liquid level parameters and sent to the motor at the top of the guide column; After receiving the control command, the motor drives the screw inside the guide column to rotate in the forward or reverse direction. Through the screw and the threaded transmission of the central threaded cylinder of the support frame, the rotational motion is converted into the linear lifting motion of the support frame along the guide column. The support frame drives the corrugated pipe end, which is fixed to it, to rise and fall synchronously, thereby adjusting the height of the air inlet end of the air outlet pipe.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: (1) This invention uses a retractable corrugated pipe as an extension structure of the outlet pipe, and uses a lifter to move the end of the corrugated pipe up and down, thereby adjusting the horizontal height of the outlet pipe end; and because the concentration of gaseous refrigerant gradually decreases from bottom to top under the action of gravity, that is, the closer the refrigerant is to the liquid, the higher the concentration of gaseous refrigerant, so the position of the outlet pipe can be adjusted according to the content of liquid refrigerant in the liquid receiver, thereby avoiding excessive accumulation of refrigerant in the liquid receiver; conversely, when the liquid refrigerant is insufficient or lacking, the content of liquid refrigerant in the liquid receiver can be reduced by adjusting the position of the outlet pipe. Therefore, it effectively solves the technical problem that the liquid refrigerant content in the liquid receiver cannot be dynamically adjusted when the existing compressor liquid receiver is in use, thereby realizing the control of liquid refrigerant, improving the stability of refrigerant circulation, and preventing liquid refrigerant from entering the compressor; (2) This invention utilizes the change in the position of the liquid refrigerant as the power source for the up-and-down movement of the outlet pipe. A floating disk is placed on the surface of the liquid refrigerant to detect the liquid level in real time. When the liquid refrigerant content is high, the floating disk moves upward; conversely, when the liquid refrigerant content decreases, the floating disk moves downward. Then, the traction rope passes around the bottom pivot and is connected to the corresponding opening of the corrugated pipe. Therefore, when the floating disk is lifted by the liquid refrigerant, it can pull the outlet pipe opening downward, allowing it to enter the area with a higher concentration of gaseous refrigerant, thereby discharging more gaseous refrigerant. Similarly, when the liquid refrigerant storage in the liquid reservoir decreases or is insufficient, the floating disk moves downward. At this time, the traction rope is released and then pushed upward by the spring inside the corrugated pipe, thereby adjusting the position of the outlet pipe inlet. This allows the upper layer of air with a lower concentration of gaseous refrigerant inside the liquid reservoir to be absorbed, reducing the amount of gaseous refrigerant discharged. (3) The present invention uses the motor to drive the screw to rotate as the power source for the up and down movement of the outlet pipe. The support frame sleeved on the outside of the screw is connected to the outlet pipe opening. Therefore, when the motor drives the screw to rotate forward and backward, it can drive the outlet pipe opening to move up and down, thereby adjusting the position of the outlet pipe opening so as to cooperate with the detection equipment inside the liquid storage tank to control the concentration of gaseous refrigerant entering the compressor, thereby improving the stability of refrigerant flow. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of an embodiment of the present invention; Figure 2 This is a cross-sectional view of the interior of the liquid storage tank in an embodiment of the present invention; Figure 3 This is a structural diagram of the air distribution plate in an embodiment of the present invention; Figure 4 This is a structural diagram of the floating disc driven elevator in an embodiment of the present invention; Figure 5This is a schematic diagram of the connection between the corrugated pipe and the support frame in an embodiment of the present invention; Figure 6 This is a structural diagram of the motion state of the elevator in an embodiment of the present invention; Figure 7 This is a schematic diagram of the installation of the vent pipe and the corrugated pipe in an embodiment of the present invention; Figure 8 This is a schematic diagram of the motion state of the adjustment component driven by the floating disk in an embodiment of the present invention; Figure 9 This is a schematic diagram of the movement state of the bellows in an embodiment of the present invention; Figure 10 This is a schematic diagram of the motion state of the motor-driven adjustment component in an embodiment of the present invention; Figure 11 This is a structural diagram of a motor-driven lifting device in an embodiment of the present invention.

[0017] Legend: 11. Liquid storage tank; 12. Air inlet pipe; 13. Air outlet pipe; 14. Air distribution plate; 15. Guide edge; 21. Fixed base; 22. Guide column; 23. Floating plate; 24. Bellows; 25. Inner spring; 26. Outer tube; 27. Rotating shaft; 28. Sliding block; 31. Support frame; 32. Snap ring; 33. Pin; 34. Traction rope; 35. Cavity; 41. Motor; 42. Screw; 43. Threaded cylinder. Detailed Implementation

[0018] The present invention will be further described below with reference to specific embodiments.

[0019] This application provides a built-in flow guide structure for an air conditioning compressor receiver, effectively solving the technical problem that existing compressor receivers cannot dynamically control the content of liquid refrigerant in the receiver during use. By employing a retractable bellows as an extension of the outlet pipe, and using a lifter to move the end of the bellows up and down, the horizontal height of the outlet pipe end can be adjusted. Furthermore, because the concentration of gaseous refrigerant gradually decreases from bottom to top under the influence of gravity (i.e., the closer to the liquid refrigerant, the higher the concentration of gaseous refrigerant), the position of the outlet pipe can be adjusted according to the content of liquid refrigerant inside the receiver, thereby preventing excessive refrigerant accumulation in the receiver. Conversely, when the liquid refrigerant is insufficient or lacking, adjusting the position of the outlet pipe reduces the content of liquid refrigerant in the receiver, thus achieving control of the liquid refrigerant, improving the stability of the refrigerant cycle, and preventing liquid refrigerant from entering the compressor. The technical solution in this application embodiment effectively solves the technical problem that existing compressor receivers cannot dynamically control the content of liquid refrigerant in the receiver during use. The overall idea is as follows: To address the problems existing in the prior art, this invention provides a built-in flow guiding structure for an air conditioner compressor receiver. This flow guiding structure mainly consists of four parts: a tank, an extension structure, a fixing structure, and a driving structure. The tank is primarily based on a commercially available rotary compressor receiver, such as... Figure 1 As shown, this structure is primarily used to store liquid refrigerant and deliver gaseous refrigerant to the compressor, thus preventing liquid refrigerant from directly entering the compressor and affecting its normal operation. The extended structure, mainly a retractable tubular structure, connects to the end of the outlet pipe 13. Its main purpose is to change the position of the pipe within the tank. Since gaseous refrigerant sinks under its own gravity, its concentration decreases from top to bottom. Utilizing this characteristic, by controlling the lifting of gaseous refrigerant at different levels, the refrigerant discharge rate can be controlled, thereby maintaining the liquid refrigerant content within the tank within a controllable range. For example, when a large amount of liquid refrigerant is stored in the tank, the gaseous refrigerant at higher concentrations can be delivered to the compressor, gradually increasing the liquid refrigerant discharge rate and controlling the liquid refrigerant content. Similarly, by selecting gaseous refrigerant with lower concentrations to deliver to the compressor, the amount of liquid refrigerant can be reduced. The loss of refrigerant leads to the accumulation of liquid refrigerant. The fixed structure, due to the rotary compressor having two outlet pipes 13, needs to be connected to an extension structure of the multiple outlet pipes 13 to maintain balance. This allows the subsequent drive structure to adjust the horizontal position of the extension structure when moving the fixed structure up and down, thus delivering gaseous refrigerant at different heights to the compressor. The drive structure can be divided into two types based on its implementation effect: First, a non-electric structure, which uses the liquid level of the refrigerant as power to adjust the horizontal height of the extension structure. Here, we utilize the buoyancy of the liquid; when the liquid refrigerant increases, the water level rises, pushing the floating objects on top of the liquid refrigerant upwards. Therefore, this buoyancy is used as the power source for the extension structure. Second, an electric structure, which connects to various detection sensors, using electric means to move the extension structure up and down based on the detected signals, thus adapting to electric control requirements. Secondly, in order to improve the distribution difference of water vapor concentration inside the storage tank 11, the storage tank 11 is heated, and the temperature decreases from top to bottom. This is because the saturation concentration of water vapor is exponentially related to temperature (following the Clausius-Clapeyron equation), and the temperature difference between the top and bottom is the fundamental source of the concentration difference. Within the normal temperature range, for every 10°C increase in temperature difference, the saturation concentration difference can more than double. The specific details are as follows: The tank body, here we mainly refer to the liquid storage tank 11 of the rotary compressor, such as... Figure 1As shown, the liquid storage tank 11 is cylindrical in shape, with an inlet pipe 12 inserted at the top and two outlet pipes 13 connected to the bottom. The outlet pipes 13 communicate with the inner cavity of the compressor, used to transport the gaseous refrigerant stored inside the liquid storage tank 11 to the compressor for compression. The connections between the outlet pipes 13, the inlet pipe 12, and the liquid storage tank 11 are sealed by welding. However, the portion of the outlet pipe 13 inserted into the liquid storage tank 11 is shortened to facilitate subsequent extension structures. The existing outlet pipe 13 structure is not used because its insertion portion is fixed, meaning it cannot be extended, changed, or adjusted, preventing subsequent vertical adjustment and movement. Therefore, the length of the outlet pipe 13 inserted into the liquid storage tank 11 is shortened. Figure 2 As shown, and to prevent gaseous refrigerant from directly entering the outlet pipe 13 from the inlet pipe 12, a disc-shaped gas distribution plate 14 is provided at the bottom of the inlet pipe 12, as shown. Figure 3 As shown, the outlet of the gas pipe 13 is blocked. In order to accurately gather the liquefied gaseous refrigerant to the bottom of the storage tank 11, several notches are opened on the edge of the gas distribution plate 14. The notches correspond to the inner wall of the storage tank 11. At the same time, a guide edge 15 inclined towards the inner wall of the storage tank 11 is provided at the notch on the edge of the gas distribution plate 14 to guide the liquefied refrigerant along the inner wall of the storage tank 11 to the bottom for storage. When the gaseous refrigerant enters the storage tank 11 along the gas inlet pipe 12, the gaseous refrigerant enters the space below the storage tank 11 from the notch on the edge of the gas distribution plate 14. An extension structure is provided at one end of the vent pipe 13 that is inserted into the liquid storage tank 11, such as... Figure 2 As shown, since it is necessary to meet the requirements of lifting and ventilation, we use a bellows 24 as an extension structure and connect it to the end of the air intake pipe 12. In this way, we only need to control the lifting degree of the bellows 24. This is not limited to the bellows 24; other structures or devices that can achieve the same function can also be used. The fixed structure, since the rotary compressor has two sets of intake pipes 12, also has two corresponding bellows 24, such as... Figure 2 As shown, in order to synchronously raise and lower the two bellows 24 and fix the free ends of the bellows 24 to prevent bending or tilting, a rectangular support frame 31 is used as the central structure, and a semi-circular retaining ring 32 is provided on each side of the support frame 31. Figure 5As shown, at this point, the end of the bellows 24 is directly inserted into the retaining ring 32. To improve the fixing effect of the retaining ring 32 on the bellows 24, a cylindrical outer tube 26 is connected to the end of the bellows 24. The outer tube 26 has an annular flange on its outside. This allows the retaining ring 32 to be positioned below the flange when the outer tube 26 is inserted into the retaining ring 32, thus connecting the outer tube 26 and the retaining ring 32 together. Similarly, an annular groove can be made on the outside of the outer tube 26. When the outer tube 26 is engaged with the retaining ring 32, the retaining ring 32 can be embedded in the annular groove, connecting the outer tube 26 and the retaining ring 32 together. This allows the outer tube 26 to move up and down synchronously with the support frame 31 when it moves up and down. Therefore, it is only necessary to control the lifting and lowering of the fixed structure (i.e., the support frame 31) afterward, hence the need for a drive structure. The drive structure is used to move the bellows 24 up and down, thereby adjusting the horizontal height of the top of the bellows 24. Since the end of the bellows 24 is fixed by the support frame 31, the adjustment of the bellows 24 can be completed simply by moving the support frame 31 up and down. For this purpose, we studied two drive schemes: electric drive and non-electric drive. The basic structure of both is the same. The purpose of the basic structure is to maintain the stability of the vertical movement of the support frame 31, as detailed below: First, a fixed base 21 is installed inside the liquid storage tank 11 near the bottom. The top of the fixed base 21 has two large through holes to allow two vent pipes 13 to pass through, and several small through holes are evenly distributed on it to allow liquid refrigerant to pass through, such as... Figure 2 and Figure 3 As shown, a vertically upward guide column 22 is connected to the center of the fixed chassis 21. A rectangular frame support 31 is fitted onto the outside of the guide column 22. Furthermore, the support frame 31 can slide up and down along the guide column 22. To ensure the stability of the support frame 31's vertical movement, two pins 33 are symmetrically arranged on the inner side of the support frame 31. The pins 33 are inserted into corresponding grooves on the outer wall of the guide column 22. The grooves extend along the length of the guide column 22. Figure 6 As shown, when the subsequent drive device is driven, the support frame 31 and the corrugated pipe 24 connected to the support frame 31 can be controlled to move up and down synchronously along the guide column 22. Subsequently, only a power source is needed to adjust the end of the bellows 24. During use, it was found that the liquid level continuously increases as the liquid refrigerant accumulates; furthermore, the concentration of gaseous refrigerant decreases further away from the liquid refrigerant, exhibiting a stepped effect. That is, the concentration of gaseous refrigerant inside the liquid tank 11 gradually decreases from bottom to top. Therefore, the characteristic of liquid level rise and fall is used as the driving force. When the liquid level rises and falls, the liquid surface also rises and falls synchronously. Therefore, to utilize the rise and fall of the liquid surface, the buoyancy force generated by it needs to be used. Based on this, a disc-shaped floating plate 23 is fitted outside the guide column 22, on which several evenly distributed... Holes are provided to allow gaseous refrigerant to pass through, and a cavity 35 is provided inside the float 23, thus forming a hollow structure. This minimizes the weight of the float 23 while maintaining its shape, allowing the cavity 35 to float above the liquid refrigerant. In addition, corresponding to the pins on the inner side of the support frame 31, two sliders 28 are symmetrically arranged at the center of the float 23, and the cavity 35 is inserted into the grooves on the outer side of the guide column 22 through the sliders 28. Thus, when the float 23 rises and falls under the action of buoyancy, it can move up and down along the length of the guide column 22. Based on this, a traction rope 34 is connected between the bottom of slider 28 and the bottom of pin 33, as follows: Figure 6 As shown, the traction rope 34 passes around the pivot 27 at the bottom of the guide column 22, so that when the float 23 rises, the traction rope 34 is pulled, and the support frame 31 at the other end of the traction rope 34 is pulled towards the direction of the pivot 27, that is, the bottom of the guide column 22, under the action of tension. Thus, when the liquid level rises, that is, when the liquid refrigerant content increases, the height of the end of the bellows 24 can be lowered, so that the high concentration of gaseous refrigerant can be delivered to the compressor. However, it was found in use that although the float 23 can descend synchronously when the liquid level drops, the bellows 24 cannot be affected by the pressure. To prevent the tension from moving upwards, an inner spring 25 with the same outer diameter as the bellows 24 is fitted inside the bellows 24. The inner spring 25 is always in a compressed state. The reason for keeping it in a compressed state is to allow the retaining ring 32 to move upwards under the action of the inner spring 25 when the floating plate 23 descends, i.e., when the traction rope 34 is released. In other words, the elastic force of the inner spring 25 is greater than the weight of the bellows 24. Similarly, in order for the support frame 31 to descend stably under the action of buoyancy, the sum of the buoyancy of the liquid refrigerant on the floating plate 23 and the weight of the bellows 24 needs to be greater than the elastic force of the inner spring 25.

[0020] In the specific implementation process, the gaseous refrigerant enters the interior of the liquid storage tank 11 through the inlet pipe 12 and moves towards the edge notch under the guidance of the gas distribution plate 14. Then, under the action of the guide edge 15 at the notch position, the gaseous refrigerant moves towards the inner wall of the liquid storage tank 11, thereby converging the liquefied gaseous refrigerant downwards along the inner wall of the liquid storage tank 11 to the bottom of the liquid storage tank 11; the liquid storage tank 11 is heated in a gradient, that is, the temperature inside the liquid storage tank 11 increases sequentially from top to bottom; When there is too much liquid refrigerant, the liquid level rises, the float 23 rises, and pulls the traction rope 34. The support frame 31 at the other end of the traction rope 34 is pulled towards the direction of the rotating shaft 27, that is, the bottom of the guide column 22, under the action of the tension. Thus, when the liquid level rises, that is, when the liquid refrigerant content increases, the height of the end of the bellows 24 can be lowered, so that the high concentration of gaseous refrigerant can be delivered to the compressor. Conversely, when the liquid level drops, the float 23 drops, and the traction rope 34 connecting the float 23 and the support frame 31 is released. At this time, the retaining ring 32 moves upward under the action of the inner spring 25, that is, the elastic force of the inner spring 25 is greater than the weight of the bellows 24, thereby raising the horizontal height of the top of the bellows 24.

[0021] Example 2: Based on Example 1, this application presents a controllable driving structure, with the following overall concept: Unlike non-electric drive devices that utilize buoyancy, the second approach is designed to work with controllable drive devices in a monitoring system. Specifically, a motor 41 is connected to the top of the guide column 22, and the output shaft of the motor 41 is connected to a screw 42 inserted inside the guide column 22. This allows the screw 42 to rotate under the drive of the motor 41. Conversely, a cylindrical threaded cylinder 43 is positioned at the center of the support frame 31, and the screw 42 is threadedly connected to the threaded cylinder 43. This allows the support frame 31 to move up and down as the screw 42 rotates. Figure 10 and Figure 11 As shown.

[0022] Example 3: Based on Example 1 or Example 2, this example describes the flow control method corresponding to the above-mentioned built-in flow guiding structure. The specific implementation process is as follows: After the gaseous refrigerant enters the liquid storage tank 11 through the inlet pipe 12, it first impacts the surface of the distribution plate 14 and flows radially along the plate to the notch at the edge. Guided by the inclined guide edge 15 at the notch, the airflow adheres to the inner wall of the liquid storage tank 11 and flows downwards. The liquefied refrigerant components continue to settle along the tank wall to the bottom of the liquid storage tank 11 for storage, while the unliquefied gaseous refrigerant enters the tank space below the distribution plate 14. Under the action of gravity, the gaseous refrigerant in the liquid storage tank 11 forms a concentration gradient that gradually decreases from bottom to top, that is, the closer to the bottom liquid refrigerant surface, the higher the concentration of gaseous refrigerant.

[0023] Based on this, the lifting device inside the liquid storage tank 11 drives the end of the corrugated pipe 24 connected to the end of the outlet pipe 13 to move up and down vertically, adjusting the horizontal height of the inlet end of the outlet pipe 13 so that the inlet end corresponds to different concentrations of gaseous refrigerant. Then, according to the real-time liquid level of the liquid refrigerant in the liquid storage tank 11, the height of the inlet end is adjusted accordingly: when the liquid refrigerant level is high, the height of the inlet end is lowered to extract high-concentration gaseous refrigerant, increasing the refrigerant discharge per unit time and accelerating the consumption of liquid refrigerant; when the liquid refrigerant level is low, the height of the inlet end is raised to extract low-concentration gaseous refrigerant, reducing the refrigerant discharge per unit time and slowing down the consumption of liquid refrigerant. In this way, the liquid refrigerant level in the liquid storage tank 11 is dynamically controlled to prevent liquid refrigerant from entering the outlet pipe 13.

[0024] When using the passively driven elevator of the floating disc 23 in Embodiment 1, the specific process of adjusting the height at the air intake end is as follows: A floating disk 23 with an internal cavity 35 is fitted onto the outside of the guide column 22 via a slider 28. The floating disk 23 floats on the surface of the liquid refrigerant and rises and falls synchronously along the guide column 22 as the liquid level of the liquid refrigerant changes. When the liquid refrigerant level in the storage tank 11 rises, the floating plate 23 moves upward along the guide column 22 under the action of buoyancy, pulling the traction rope 34 that passes around the bottom rotating shaft 27 of the guide column 22; the other end of the traction rope 34 pulls the support frame 31 that is engaged with the outer tube 26 at the end of the bellows 24, and slides downward along the guide column 22 through the cooperation of the pin 33 and the slide groove, compressing the bellows 24 so that the air inlet end of the gas outlet pipe 13 moves down to the high concentration gaseous refrigerant area, increasing the gaseous refrigerant discharge per unit time, accelerating the vaporization and consumption of liquid refrigerant, and inhibiting the continuous rise of the liquid level; When the liquid refrigerant level in the storage tank 11 drops, the float 23 moves downward along the guide column 22 with the liquid level, and the traction rope 34 is in a relaxed state. At this time, the pre-compressed inner spring 25 inside the bellows 24 rebounds and extends, pushing the end of the bellows 24 and the support frame 31 upward along the guide column 22, so that the inlet end of the outlet pipe 13 moves upward to the low concentration gaseous refrigerant area, reducing the amount of gaseous refrigerant discharged per unit time, reducing the vaporization consumption of liquid refrigerant, and maintaining the basic liquid volume in the storage tank 11.

[0025] When the lifting device driven by motor 41 in Embodiment 2 is used, the specific process of adjusting the air intake height is as follows: The liquid level parameters of the liquid refrigerant inside the storage tank 11 are obtained in real time by the liquid level detection element. The control system generates corresponding drive commands according to the preset liquid level threshold and sends them to the motor 41 at the top of the guide column 22. After receiving the drive command, the motor 41 drives the screw 42 inside the guide column 22 to rotate in the forward or reverse direction. Through the threaded transmission between the screw 42 and the central threaded cylinder 43 of the support frame 31, the rotational motion of the screw 42 is converted into the linear lifting motion of the support frame 31 along the guide column 22. The support frame 31 drives the end of the corrugated pipe 24 fixed to it to rise and fall synchronously through the retaining ring 32, so as to accurately adjust the height of the inlet end of the outlet pipe 13, thereby accurately controlling the concentration and total amount of gaseous refrigerant entering the outlet pipe 13, and realizing the active regulation of the liquid refrigerant storage in the liquid storage tank 11.

[0026] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A built-in flow guiding structure for an air conditioner compressor receiver, characterized in that, The flow guiding structure includes: The liquid storage tank (11) has an inlet pipe (12) and an outlet pipe (13) inserted into its top and bottom respectively. The inlet pipe (12) delivers gaseous refrigerant to the liquid storage tank (11) and then discharges it through the outlet pipe (13). An adjustment component, located in the liquid storage tank (11), is used to adjust the concentration of gaseous refrigerant entering the outlet pipe (13); The regulating component includes a bellows (24) connected to the end of the outlet pipe (13), and the bellows (24) is located at the end of the outlet pipe (13) inserted into the liquid storage tank (11). The liquid storage tank (11) is equipped with a lifter, which drives the end of the bellows (24) to move up and down. When the outlet pipe (13) exhausts gas, it absorbs the gaseous refrigerant around the location of the end of the bellows (24).

2. The built-in flow guiding structure for an air conditioner compressor receiver as described in claim 1, characterized in that: The liquid storage tank (11) is equipped with a gas distribution plate (14), and the gas distribution plate (14) is located between the gas outlet pipes (13). The edge of the gas distribution plate (14) has several notches. When the gaseous refrigerant enters the liquid storage tank (11) along the gas inlet pipe (12), the gaseous refrigerant enters the space below the liquid storage tank (11) through the notches on the edge of the gas distribution plate (14). The gas distribution plate (14) has a guide edge (15) at the notch on its edge, and the guide edge (15) is inclined toward the inner wall of the liquid storage tank (11) to guide the liquefied refrigerant along the inner wall of the liquid storage tank (11) to the bottom for storage.

3. The built-in flow guiding structure for an air conditioner compressor receiver as described in claim 2, characterized in that: The lifting device includes a fixed base (21) fixed on the inner wall of the liquid storage tank (11), and a guide column (22) is connected to the center of the fixed base (21). The guide column (22) is fitted with a sliding fastener, and the fastener is connected to the end of the bellows (24). The guide column (22) is equipped with a driver for moving the fixing component up and down.

4. The built-in flow guiding structure for an air conditioner compressor receiver as described in claim 3, characterized in that: The fastener includes a support frame (31) sleeved on the outside of the guide column (22), and a semi-circular retaining ring (32) is provided on the outside of the support frame (31). Two pins (33) are symmetrically arranged on the inner side of the support frame (31), and the pins (33) are correspondingly inserted into the sliding groove on the outer wall of the guide column (22). The sliding groove extends along the length direction of the guide column (22). The corrugated pipe (24) is connected to an outer pipe (26) at its end, and a retaining edge is provided on the outside of the outer pipe (26). The retaining ring (32) is engaged with the outside of the outer pipe (26) and located below the retaining edge.

5. The built-in flow guiding structure for an air conditioner compressor receiver as described in claim 4, characterized in that: The driver includes a floating disk (23) sleeved on the outside of the guide column (22), and the floating disk (23) has a cavity (35) inside, and floats above the liquid refrigerant through the cavity (35). Two sliders (28) are symmetrically arranged at the center of the floating disk (23), and the floating disk (23) is inserted into the corresponding groove on the outside of the guide column (22) through the sliders (28). Wherein, a traction rope (34) is connected between the bottom of the slider (28) and the bottom of the pin (33), and the traction rope (34) passes around the pivot (27) at the bottom of the guide column (22). As the floating disc (23) rises, the support frame (31) moves downward along the guide column (22) driven by the traction rope (34).

6. The built-in flow guiding structure for an air conditioner compressor receiver as described in claim 5, characterized in that: The bellows (24) is fitted with an inner spring (25), and the inner spring (25) is always in a compressed state. When the floating disk (23) descends, the retaining ring (32) moves upward under the action of the inner spring (25). Among them, the sum of the buoyancy of the liquid refrigerant on the floating disk (23) and the weight of the bellows (24) is greater than the elastic force of the inner spring (25).

7. The built-in flow guiding structure for an air conditioner compressor receiver as described in claim 4, characterized in that: The driver includes a motor (41) connected to the top of the guide column (22), and the output shaft of the motor (41) is connected to a screw (42) inserted inside the guide column (22), the screw (42) being able to rotate under the drive of the motor (41); The support frame (31) is provided with a threaded cylinder (43) at its center, and the screw (42) and the threaded cylinder (43) are connected by a thread. When the screw (42) rotates, it can drive the support frame (31) to move up and down.

8. A method for regulating the flow of a liquid receiver built into an air conditioning compressor, characterized in that, Based on the built-in flow guiding structure for an air conditioning compressor receiver according to claim 1, the method includes: Gaseous refrigerant is introduced into the liquid storage tank (11) through the inlet pipe (12). The liquefied refrigerant components settle to the bottom of the liquid storage tank (11) to form a liquid refrigerant layer. The gaseous refrigerant in the tank forms a distribution state in which the concentration gradually decreases from bottom to top under the action of gravity. The bellows (24) end connected to the end of the air outlet pipe (13) is moved up and down in the vertical direction by the lifting device to adjust the horizontal height of the air inlet end of the air outlet pipe (13); Adjust the height of the inlet end according to the liquid level of the liquid refrigerant in the storage tank (11), extract the gaseous refrigerant in the corresponding height area and discharge it through the outlet pipe (13), and dynamically regulate the amount of liquid refrigerant stored in the storage tank (11).

9. The air conditioning compressor receiver built-in flow control method according to claim 8, characterized in that, The process of moving the end of the bellows (24) up and down by the lifting device is as follows: A floating disk (23) with an internal cavity (35) is fitted onto the outside of the guide column (22), so that the floating disk (23) floats on the surface of the liquid refrigerant and rises and falls synchronously along the guide column (22) with the change of the liquid level of the liquid refrigerant. When the liquid refrigerant level rises, the floating plate (23) moves upward along the guide column (22), pulling the traction rope (34) that passes around the bottom pivot (27) of the guide column (22). The other end of the traction rope (34) pulls the support frame (31) connected to the end of the bellows (24) to slide downward along the guide column (22), compressing the bellows (24) and causing the inlet end of the outlet pipe (13) to move down to the high concentration gaseous refrigerant area. When the liquid refrigerant level drops, the float (23) moves downward along the guide column (22), the traction rope (34) is relaxed, the pre-compressed inner spring (25) inside the bellows (24) rebounds and extends, pushing the end of the bellows (24) and the support frame (31) to slide upward along the guide column (22), so that the inlet end of the outlet pipe (13) moves upward to the low concentration gaseous refrigerant area.

10. The air conditioning compressor receiver built-in flow control method according to claim 8, characterized in that, The process of moving the end of the bellows (24) up and down by the lifting device is as follows: The liquid level parameters of the liquid refrigerant inside the liquid storage tank (11) are obtained in real time. Based on the liquid level parameters, control commands are generated and sent to the motor (41) at the top of the guide column (22). After receiving the control command, the motor (41) drives the screw (42) inside the guide column (22) to rotate in the forward or reverse direction. Through the screw (42) and the threaded cylinder (43) of the support frame (31) in the threaded transmission, the rotational motion is converted into the linear lifting motion of the support frame (31) along the guide column (22). The support frame (31) drives the end of the corrugated pipe (24) that is fixed to it to rise and fall synchronously, thereby adjusting the height of the air inlet end of the air outlet pipe (13).

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