Exhaust structure and compressor with same

Abstract

The exhaust structure comprises an exhaust unit, the air inlet end of the exhaust unit is used for being communicated with an air outlet of an air outlet structure, the air outlet end of the exhaust unit is used for being communicated with the outside, and at least part of the exhaust unit is arranged in an on-off mode. The air inlet end and the air outlet end are communicated in the communication state or blocked in the closed state; the on-off unit is arranged on the air outlet structure, the on-off unit is provided with an on-off contact surface, and at least part of the on-off contact surface abuts against the air exhaust unit so as to press the air exhaust unit to be switched from the communicated state to the closed state; the communication unit is movably arranged in the direction away from or close to the exhaust unit. The problems of extra resistance and energy consumption generated when compressed gas pushes the valve plate in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to an exhaust structure and a compressor with the same. BACKGROUND

[0002] Scroll compressors have occupied an important position in modern refrigeration and air conditioning systems due to their high energy efficiency ratio and low noise. The key part of the scroll compressor is the exhaust valve, which is usually designed with a metal valve plate to achieve timely discharge of compressed gas. The valve plate opens and closes by relying on the pressure change of the gas in the compression chamber, which theoretically ensures the effective discharge of the gas. Metal valve plates are considered reliable exhaust control elements due to their strength and durability, and are widely used in various scroll compressors.

[0003] However, the biggest problem with the metal valve plate structure is the energy loss during the exhaust process. Each time the compressed gas pushes the valve plate to open, friction and collision between the valve plate and the exhaust port will generate additional resistance, which not only consumes a part of the energy generated by the compression work, but also can cause the overall efficiency of the compressor to decrease. Especially in continuous operation and high load working conditions, this energy loss is particularly significant, which seriously affects the energy efficiency ratio of the compressor and increases energy consumption and operating costs. SUMMARY

[0004] The main purpose of the present application is to provide an exhaust structure and a compressor with the same to solve the problem of additional resistance and energy consumption generated when compressed gas pushes the valve plate in the prior art.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an exhaust structure is provided, comprising:

[0006] An exhaust unit, the exhaust unit having an intake end and an exhaust end, the intake end being configured to communicate with an exhaust port of the exhaust structure, and the exhaust end being configured to communicate with the outside, at least part of the exhaust unit being configured to be selectively opened and closed to be in a communication state of allowing airflow to flow between the intake end and the exhaust end or a closed state of blocking airflow between the intake end and the exhaust end;

[0007] A switching unit, the switching unit being arranged on the exhaust structure, the switching unit having a switching contact surface, at least part of the switching contact surface being arranged to abut against the exhaust unit to press the exhaust unit to switch from the communication state to the closed state, the switching unit being movably arranged in a direction away from or close to the exhaust unit, so that when there is gas passing through the exhaust unit, the switching unit is driven to move in a direction away from the exhaust unit by the gas pressure in the exhaust unit, so that the exhaust unit is in the communication state.

[0008] Further, the on-off unit comprises an on-off component, the on-off component has an on-off contact surface, the on-off contact surface is arranged obliquely relative to the movement direction of the on-off unit, when the exhaust unit is in the communication state, the on-off contact surface and the contact surface of the exhaust unit are a first contact surface, when the exhaust unit is in the closed state, the on-off contact surface and the contact surface of the exhaust unit are a second contact surface, wherein the contact area of the second contact surface is greater than the contact area of the first contact surface.

[0009] Further, the on-off unit further comprises an elastic component, one end of the elastic component is fixed on the air outlet structure, the free end of the elastic component is connected with the end of the on-off component away from the on-off contact surface, so that when the gas passes through the exhaust unit, the elastic component is elongated or shortened according to the flow of the gas in the exhaust unit, so that the on-off component moves relative to the direction close to or away from the center line of the exhaust unit until the exhaust unit is switched from the communication state to the closed state.

[0010] Further, the air outlet structure is further provided with a limiting component, the limiting component has a limiting space, the elastic component is arranged in the limiting space, and the end of the elastic component away from the on-off component is arranged on the limiting component.

[0011] Further, the on-off component comprises an on-off body, at least part of the on-off body is provided with a sliding guide position, the air outlet structure is further provided with a limiting component, the limiting component is provided with a sliding cooperation position at a position corresponding to the sliding guide position, and the sliding guide position and the sliding cooperation position are in sliding cooperation.

[0012] Further, the exhaust structure further comprises a one-way sealing component arranged relative to the air outlet end of the exhaust unit, a sealing surface of the one-way sealing component is in contact with the exhaust unit, the one-way sealing component is sleeved on the outside of the exhaust unit and is arranged in the direction away from the air outlet end of the exhaust unit, so as to prevent the external material from entering the exhaust unit from the air outlet end of the exhaust unit.

[0013] Further, the one-way sealing component comprises:

[0014] The sealing body has a tapered outer wall surface, the inner diameter of the sealing body gradually increases along the flow direction of the gas in the exhaust unit, and the sealing body is provided with a through hole for the exhaust unit to pass through;

[0015] The sealing flange is arranged at the large-diameter end of the sealing body.

[0016] Further, the exhaust structure further comprises a fixing component arranged on the mounting base, so as to fix the one-way sealing component through the fixing component; and / or, the material of the one-way sealing component is engineering plastic PTFE.

[0017] According to another aspect of the present application, a compressor is provided, comprising a static scroll plate and a sealing cover used in cooperation with the static scroll plate, an installation space is formed between the static scroll plate and the sealing cover, and the installation space is used to install an exhaust structure, which is the exhaust structure described above.

[0018] Further, a first exhaust hole is arranged on the static scroll plate, and a second exhaust hole is arranged on the sealing cover, wherein the air inlet end of the exhaust unit in the exhaust structure is communicated with the first exhaust hole, and the air outlet end of the exhaust unit is communicated with the second exhaust hole.

[0019] By the flexible design of the exhaust unit and the sensitive response of the on-off unit to the change of air pressure, the exhaust process can be adjusted in real time according to the internal gas pressure, without additional power driving or complex control circuit, so as to realize automatic exhaust control, improve the response speed and control accuracy of the system.

[0020] The flexible exhaust pipe is automatically opened under the action of high-pressure gas, reduces the throttling loss in the exhaust process, avoids the energy consumption of the traditional valve plate when it is opened and closed, so as to improve the energy conversion efficiency of the whole machine and reduce the energy consumption.

[0021] The opening and closing process of the flexible exhaust pipe is smooth, avoids the rigid collision between the traditional metal valve plate and the fixed part, significantly reduces the running noise, improves the running stability of the compressor, and improves the noise level of the user environment.

[0022] The dynamic sealing performance of the exhaust unit cooperates with the one-way control effect of the on-off unit, effectively prevents the reverse flow of the lubricating oil in the compressor when the compressor is stopped or runs at low load, ensures the normal operation of the lubricating system, and avoids oil pollution and potential lubrication failure.

[0023] The single flexible exhaust pipe is used instead of the multi-component valve plate structure, which reduces the possibility of mechanical wear and failure, reduces the maintenance cost, simplifies the assembly process, and improves the production efficiency.

[0024] The design of the flexible exhaust pipe can be fine-tuned according to different gas flow and pressure conditions, meets the exhaust requirements under different working conditions, improves the universality of the exhaust structure and the adaptability to complex operating environment. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings accompanying the specification of this application form a part thereof, serve to provide further understanding of the present application, and together with the description of the exemplary embodiments of the present application and the explanation thereof, explain the present application, and do not constitute improper limitations on the present application. In the drawings:

[0026] Figure 1 The overall schematic diagram of the exhaust structure of the embodiment of the present application is shown;

[0027] Figure 2 An enlarged schematic view of A in the Figure 1 embodiment of the application is shown.

[0028] Figure 3 A sectional view of the Figure 2 embodiment of the application is shown.

[0029] Figure 4 A structural schematic view of the on-off component of the embodiment of the application is shown.

[0030] Figure 5 A view of the static scroll disc provided with an exhaust structure of the embodiment of the application is shown.

[0031] Figure 6 A structural schematic view of the one-way sealing component of the embodiment of the application is shown.

[0032] Figure 7 A structural schematic view of the exhaust unit of the compressor in a communication state is shown.

[0033] Figure 8 A structural schematic view of the exhaust unit of the compressor in a closed state is shown.

[0034] In the above drawings, the following reference signs are used:

[0035] 1, exhaust unit; 11, air inlet end; 12, air outlet end;

[0036] 2, on-off unit; 21, on-off component; 211, on-off body; 212, sliding guide position; 22, elastic component;

[0037] 3, limiting component;

[0038] 4, sliding matching position;

[0039] 5, one-way sealing component; 51, sealing body; 52, sealing flange; 53, through hole;

[0040] 6, fixed component;

[0041] 7, static scroll disc; 71, first exhaust hole;

[0042] 8, sealing cover. DETAILED DESCRIPTION

[0043] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0044] Scroll compressors have occupied an important position in modern refrigeration and air conditioning systems due to their high energy efficiency ratio and low noise. The key part of the scroll compressor, the exhaust valve, is usually designed with a metal valve plate to achieve timely discharge of compressed gas. The valve plate opens and closes by relying on the pressure change of the gas in the compression chamber, which theoretically ensures the effective discharge of the gas. Metal valve plates are considered reliable exhaust control elements due to their strength and durability, and are widely used in various scroll compressors.

[0045] However, the biggest problem with the metal valve plate structure is the energy loss during the exhaust process. Each time the compressed gas pushes the valve plate to open, friction and collision between the valve plate and the exhaust port will generate additional resistance, which not only consumes a part of the energy generated by the compression work, but also may cause the overall efficiency of the compressor to decrease. Especially in continuous operation and high load working conditions, this energy loss is particularly significant, which seriously affects the energy efficiency ratio of the compressor and increases energy consumption and operating costs.

[0046] Therefore, the technical purpose of the present application is to provide an exhaust structure and a compressor having the same to solve the above technical problems.

[0047] Embodiment 1

[0048] The embodiment of the present application first provides an exhaust structure, which comprises an exhaust unit 1, the exhaust unit 1 having an inlet end 11 and an outlet end 12, the inlet end 11 being configured to communicate with an outlet of an exhaust structure, and the outlet end 12 being configured to communicate with the outside, at least part of the exhaust unit 1 being configured to be switchable between a communication state in which the exhaust unit 1 is in communication with the inlet end 11 and the outlet end 12 and a closed state in which the exhaust unit 1 blocks the communication between the inlet end 11 and the outlet end 12.

[0049] A switching unit 2 is provided on the exhaust structure, the switching unit 2 having a switching contact surface, at least part of the switching contact surface being in abutment with the exhaust unit 1 to press the exhaust unit 1 to switch from the communication state to the closed state. The switching unit 2 is movably arranged in a direction away from or close to the exhaust unit 1, so that when the exhaust unit 1 has gas passing through it, the switching unit 2 is driven by the gas pressure in the exhaust unit 1 to move in a direction away from the exhaust unit 1, so that the exhaust unit 1 is in the communication state.

[0050] Specifically, as Figures 1 to 8As shown, the exhaust result provided by the embodiment of the application includes an exhaust unit, and the exhaust structure is a static scroll 7 in the embodiment. The static scroll 7 is provided with a first exhaust hole 71. The intake end 11 of the exhaust unit 1 is in communication with the first exhaust hole 71. The exhaust end 12 is in communication with a second exhaust hole provided on the sealing cover 8. Then, the generated gas is transported to the outside by the exhaust unit 1. In the embodiment, the exhaust unit 1 is an exhaust pipe made of flexible material. The static scroll 7 is provided with an on-off unit 2, which has an on-off contact surface. The exhaust unit 1 has a communication state and a disconnected state. The communication state means that the intake end 11 and the exhaust end 12 are in communication, so that the gas output from the static scroll 7 can be transported to the outside by the exhaust unit 1. The disconnected state means that the intake end 11 and the exhaust end 12 are not in communication, so that the gas output from the static scroll 7 cannot be transported to the outside by the exhaust unit 1. When the gas enters the exhaust unit 1, the entering of the gas will make the exhaust unit 1 gradually change from the closed state to the communication state. In the process of gradual change, the on-off unit 2 moves under the action of the flow rate of the gas in the exhaust unit 1. That is, when the flow rate of the gas in the exhaust unit 1 gradually increases, the on-off unit 2 will gradually move away from the center line of the exhaust unit 1. When the flow rate of the gas in the exhaust unit 1 gradually decreases, the on-off unit 2 will gradually move towards the center line of the exhaust unit 1. When the flow rate of the gas in the exhaust unit 1 increases and decreases alternately, the on-off unit 2 will also move with the flow rate of the gas in the exhaust unit 1.

[0051] Through the flexible design of the exhaust unit 1 and the sensitive response of the on-off unit 2 to the change of the gas pressure, the exhaust process can be adjusted in real time according to the internal gas pressure, without additional power driving or complex control circuit, so as to realize automatic exhaust control, improve the response speed and control accuracy of the system.

[0052] The flexible exhaust pipe is automatically opened under the action of high-pressure gas, reduces the throttling loss in the exhaust process, avoids the energy consumption of the traditional valve plate when it is opened and closed, thereby improving the energy conversion efficiency of the whole machine and reducing the energy consumption.

[0053] The opening and closing process of the flexible exhaust pipe is smooth, avoids the rigid collision between the traditional metal valve plate and the fixed part, significantly reduces the operating noise, improves the running stability of the compressor, and improves the noise level of the user environment.

[0054] The dynamic sealing performance of the exhaust unit 1 cooperates with the one-way control effect of the on-off unit 2, effectively prevents the reverse flow of the lubricating oil in the compressor when the compressor is stopped or runs at low load, ensures the normal operation of the lubricating system, and avoids oil pollution and potential lubrication failure.

[0055] Using a single flexible exhaust pipe instead of a multi-component valve plate structure reduces the possibility of mechanical wear and failure, lowers maintenance costs, and simplifies the assembly process, improving production efficiency.

[0056] The design of the flexible exhaust pipe can be fine-tuned according to different gas flow and pressure conditions to meet the exhaust requirements under different working conditions, improving the universality of the exhaust structure and its adaptability to complex operating environments.

[0057] Further, the on-off unit 2 comprises:

[0058] The on-off component 21 has an on-off contact surface that is inclined relative to the movement direction of the on-off unit 2, and when the exhaust unit 1 is in the open state, the on-off contact surface is in contact with the first contact surface of the exhaust unit 1, and when the exhaust unit 1 is in the closed state, the on-off contact surface is in contact with the second contact surface of the exhaust unit 1, wherein the contact area of the second contact surface is greater than that of the first contact surface.

[0059] Specifically, the on-off unit 2 comprises an on-off contact surface, as shown in Figure 2 The on-off contact surface is inclined relative to the upper surface of the static scroll 7, and along the direction from the gas inlet end 11 to the gas outlet end 12, the distance between the center line of the exhaust unit 1 and the on-off contact surface in the movement direction of the on-off unit 2 gradually decreases, and when the exhaust unit 1 is in the open state, the on-off contact surface is in contact with the first contact surface of the exhaust unit 1, and the contact area of the first contact surface changes with the size of the gas flow in the exhaust unit 1, and when the gas flow in the exhaust unit 1 increases, the contact area of the first contact surface decreases, and when the gas flow in the exhaust unit 1 decreases, the contact area of the first contact surface increases, and when the exhaust unit 1 is in the closed state, the gas flow is zero, and the contact surface at this time is the second contact surface, and the contact area of the second contact surface is always greater than that of the first contact surface.

[0060] The inclined on-off contact surface allows the contact area between the exhaust unit 1 and the on-off component 21 to automatically adjust according to the size of the internal gas flow, and when the flow increases, the contact area of the first contact surface decreases, which is beneficial to the rapid passage of gas and reduces the exhaust resistance, improving the exhaust efficiency; and when the flow decreases, the contact area of the first contact surface increases, which helps to slow down the gas flow and achieve more precise flow management.

[0061] In the closed state of the exhaust unit 1, the contact area of the second contact surface is greater than that of the first contact surface, which means that the sealing between the on-off component 21 and the exhaust unit 1 is better when there is no gas flow, effectively preventing gas leakage and backflow of lubricating oil, and ensuring stable operation of the system.

[0062] With the change of gas flow, the dynamic adjustment of the contact area between the on-off contact surface and the exhaust unit 1 can reduce the turbulence and vibration during gas flow, further reducing the noise level during the exhaust process.

[0063] The on-off contact surface with an inclined design can automatically adjust its opening degree according to different gas pressure and flow conditions, so that the exhaust structure can adapt to a wider range of operating conditions, improving the flexibility and versatility of the system.

[0064] The change of the contact area between the on-off contact surface and the exhaust unit 1 can effectively avoid the energy consumption and wear caused by excessive closing in low flow state, prolong the service life of the components and reduce the maintenance cost.

[0065] Further, the on-off unit 2 further comprises:

[0066] The elastic component 22 is fixed at one end to the exhaust structure, and the free end of the elastic component 22 is connected to the end of the on-off component 21 away from the on-off contact surface, so that when gas passes through the exhaust unit 1, the elastic component 22 is elongated or shortened according to the size of the gas flow in the exhaust unit 1, so that the on-off component moves relative to the direction of approaching or away from the center line of the exhaust unit 1 until the exhaust unit 1 is switched from the communication state to the closed state.

[0067] Specifically, the on-off unit 2 further comprises an elastic component 22 arranged on the static scroll 7, which is a spring in this embodiment. One end of the elastic component 22 is fixedly connected to the static scroll 7, and the other end is connected to the end of the on-off component 21 away from the on-off contact surface. When gas passes through the exhaust unit 1 or the gas flow increases, the exhaust unit 1 will be lifted, thereby pushing the on-off unit 2 to move away from the center line of the exhaust unit 1, and the elastic component 22 will be compressed by the on-off unit 2. When there is no gas passing through the exhaust unit 1 or the gas flow decreases, the exhaust unit 1 will deform due to the decrease of the force from the gas, thereby reducing the force acting on the on-off unit 2, and the elastic component 22 will be elongated until the exhaust unit 1 is switched from the communication state to the closed state.

[0068] The elastic component 22 can automatically elongate or shorten according to the change of the gas pressure inside the exhaust unit 1, thereby pushing the on-off component 21 to move away from or approach the center line of the exhaust unit 1, realizing the automatic switching of the exhaust structure from the communication state to the closed state without external power or manual intervention.

[0069] Since the spring has the characteristics of rapid response, it can quickly respond to changes in gas pressure, so that the on-off component 21 can adjust its position in time, ensuring the timeliness and accuracy of the exhaust process and improving the dynamic response capability of the system.

[0070] When there is no gas flow, the elastic component 22 is naturally elongated, and the on-off component 21 is tightly attached to the exhaust structure 1, forming a tight seal; when the gas flow increases, the elastic component 22 is compressed, allowing gas to pass through, but can effectively return to the initial sealing state in the closed state, preventing leakage and oil backflow, and enhancing the sealing performance of the system.

[0071] The use of the elastic component 22 reduces friction and resistance during the exhaust process, reduces the additional energy consumption caused by exhaust control, and helps to improve the energy utilization efficiency of the entire machine.

[0072] The buffering effect of the spring can absorb the vibration caused by gas flow, further reducing the mechanical noise during the exhaust process, and creating a more peaceful operating environment.

[0073] The constant pre-tightening force provided by the spring ensures stable contact between the on-off component 21 and the exhaust structure 1, maintaining good sealing performance in both high and low pressure environments, and enhancing the stability and reliability of the entire exhaust system under various working conditions.

[0074] Further, the gas outlet structure is further provided with a limiting component 3, the limiting component 3 has a limiting space, the elastic component 22 is arranged in the limiting space, and the end of the elastic component 22 away from the on-off component 21 is arranged on the limiting component 3.

[0075] Further, the on-off component 21 includes an on-off body 211, at least a part of the on-off body 211 is provided with a sliding guide 212, and the gas outlet structure is further provided with a limiting component 3, the limiting component 3 is provided with a sliding fit position 4 at a position corresponding to the sliding guide 212, and the sliding guide 212 and the sliding fit position are in sliding fit.

[0076] Specifically, the limiting component 3 is a rectangular limiting groove, which has a limiting space, as shown in Figure 4 and Figure 5 The limiting component 3 includes a first limiting part and a second limiting part arranged opposite to each other, the first limiting part and the second limiting part are arranged along the movement direction of the on-off component 21, the elastic component 22 and the on-off component 21 are both arranged in the limiting space, wherein the end of the elastic component 22 away from the exhaust structure 1 is fixedly connected between the first limiting part and the second limiting part, and the gas outlet structure is further provided with a sliding fit position 4, the sliding fit position 4 is arranged on the third limiting part and the fourth limiting part of the limiting component 3, the third limiting part and the fourth limiting part are arranged along the direction perpendicular to the movement direction of the on-off component 21, the outer edge of the sliding fit position 4 is in the same plane as the outer edge of the third limiting part and the fourth limiting part, and the inner edge of the sliding fit position 4 is arranged beyond the inner edge of the third limiting part and the fourth limiting part, forming a sliding fit surface, as shown in Figure 4As shown, the on-off component 21 includes an on-off body 211, on which a sliding guide position 212 is arranged, which corresponds to the position of the sliding cooperation position 4, so that the on-off component 21 can move along the extension direction of the limiting component 3, thereby realizing the communication and closing of the exhaust unit 1.

[0077] Through the cooperation of the limiting component 3 and the sliding guide position 212 and the sliding cooperation position 4, the movement path of the on-off component 21 is accurately limited, ensuring its smooth movement in the predetermined direction, and improving the overall stability and reliability of the exhaust structure.

[0078] The limiting space provides a defined range of motion for the elastic component 22, preventing it from being excessively compressed or stretched during operation, ensuring the movement accuracy of the on-off component 21, and facilitating precise control of the communication and closing state of the exhaust unit 1.

[0079] The contact surface design of the sliding guide position 212 and the sliding cooperation position 4 reduces the direct contact between the on-off component 21 and the static scroll 7, reduces the component wear caused by friction, and also avoids the occurrence of jamming phenomenon, prolonging the service life of the component.

[0080] The provision of the limiting component 3 not only provides a fixed point for the elastic component 22, but also limits its movement range, which is helpful for the compact design of the overall structure and optimizes the utilization efficiency of the internal space of the compressor.

[0081] The sliding guide design of the limiting component 3 and the on-off body 211 simplifies the assembly process between components, and when maintaining, it is easy to observe and adjust the position of the on-off component 21, reducing the difficulty and time cost of maintenance.

[0082] The limiting space can prevent the on-off component 21 from excessive displacement under high pressure, avoiding the safety risk caused by the out-of-control of the component, and enhancing the safety of the exhaust structure under extreme working conditions.

[0083] The mutual cooperation of the sliding guide position 212 and the sliding cooperation position 4, and the fixation of the limiting component 3 to the elastic component 22, jointly act to reduce the vibration and displacement of the on-off component 21, improve the durability of the component, and reduce the failure rate during the maintenance period.

[0084] Further, the exhaust structure further comprises a one-way sealing component 5 arranged relatively close to the exhaust end 12 of the exhaust unit 1, the sealing surface of the one-way sealing component 5 being in contact with the exhaust unit 1, the one-way sealing component 5 being sleeved on the outside of the exhaust unit 1 and being limited in the direction away from the exhaust end of the exhaust unit 1, so as to prevent external substances from entering the exhaust unit 1 from the exhaust end of the exhaust unit 1.

[0085] Specifically, the exhaust structure further comprises a one-way sealing component 5, which is a one-way sealing ring in this embodiment, and the sealing surface formed by the inner circle of the one-way sealing component 5 is in contact with the outer wall surface of the exhaust unit 1.

[0086] The arrangement of the one-way sealing component 5 effectively prevents external substances (such as dust, moisture, impurities, etc.) from flowing backward from the gas outlet into the interior of the exhaust unit 1, ensuring the cleanliness and operating environment inside the compressor and reducing potential mechanical failures and performance degradation.

[0087] The close contact between the sealing surface of the one-way sealing component 5 and the outer wall surface of the exhaust unit 1 provides excellent sealing performance, preventing leakage of high-pressure gas and ensuring smooth and lossless discharge of high-pressure gas from the compressor, thereby improving overall exhaust efficiency and work efficiency of the compressor.

[0088] The structural design of the one-way sealing component 5 ensures one-way flow of fluid, preventing internal substances such as lubricating oil from flowing backward into the compression chamber even when the compressor is in a shutdown or low-load operating state, maintaining the stability of the lubrication system and normal operation of the compressor.

[0089] Due to the ability of the one-way sealing component 5 to prevent reverse flow, lubrication abnormalities and mechanical wear caused by backflow of oil are reduced, significantly improving the reliability and service life of the compressor.

[0090] The introduction of the one-way sealing component 5 reduces the risk of external substances entering the interior of the compressor, reduces the resulting maintenance and cleaning work, reduces overall maintenance costs and downtime, and improves the economic efficiency of the equipment.

[0091] Further, the one-way sealing component 5 comprises:

[0092] A sealing body 51, the outer wall surface of the sealing body 51 is conical in shape, and the inner diameter of the sealing body 51 gradually increases along the flow direction of the gas in the exhaust unit 1, and the sealing body 51 is provided with a through hole 53 for the exhaust unit 1 to pass through;

[0093] A sealing flange 52 is arranged at the large-diameter end of the sealing body 51.

[0094] The conical design of the sealing body 51 ensures smooth flow of gas in the exhaust unit 1. As the gas moves in the exhaust direction, the inner diameter of the sealing body 51 gradually increases, reducing the flow resistance of the gas and improving the efficiency of gas discharge.

[0095] The contact area between the conical sealing body 51 and the outer wall of the exhaust unit 1 naturally expands as the gas pressure increases, forming a pressure-dependent sealing effect, which maintains good sealing performance even in high-pressure environments and prevents gas leakage.

[0096] The sealing flange 52 is arranged at the large-diameter end of the sealing body 51, ensuring that the exhaust unit 1 does not backflow when the gas flows out. When the gas pressure drops, the sealing flange 52 effectively prevents lubricating oil or condensed water from flowing back into the compression chamber from the gas outlet end, maintaining the stability and reliability of the system.

[0097] The tapered design of the sealing body 51 enables it to automatically adjust the sealing degree according to the exhaust pressure, without additional mechanical or electronic control, thereby achieving adaptive sealing, simplifying the exhaust structure, and reducing manufacturing and maintenance costs.

[0098] Through the efficient sealing of the sealing body 51 and the sealing flange 52, this technical solution reduces the intrusion of external impurities and the leakage of internal fluids, enhances the safety and reliability of the compressor operation, and reduces the potential failure rate and maintenance requirements.

[0099] The combination of the taper and the flange makes the one-way sealing component 5 have a more compact structure, facilitating installation in limited space while not affecting its sealing and anti-backflow performance, suitable for various compressor models and working conditions.

[0100] Further, the exhaust structure further comprises a fixing component 6 arranged on the installation base to fix the one-way sealing component 5 through the fixing component 6.

[0101] Specifically, the fixing component 6 is a fixing groove opened on the installation base, the fixing groove is arranged around the exhaust unit 1, and at least part of the one-way sealing component 5 is in the fixing groove.

[0102] Further, the material of the one-way sealing component 5 is engineering plastic PTFE.

[0103] The design of the fixing component 6, especially the layout of the fixing groove around the exhaust unit 1, ensures the stable fixation of the one-way sealing component 5 during the exhaust process, avoids displacement and sealing failure caused by vibration or pressure fluctuations, and enhances the stability and reliability of the entire exhaust structure.

[0104] The fixing groove of the fixing component 6 not only facilitates the installation of the one-way sealing component 5, but also simplifies the subsequent inspection and maintenance process. Once installed in place, the positioning of the one-way sealing component 5 is fixed and does not need to be adjusted frequently, reducing maintenance time and cost.

[0105] The use of engineering plastic PTFE as the material of the one-way sealing component 5 fully utilizes the self-lubricating properties, high temperature resistance, and chemical stability of PTFE, which can withstand the high temperature and high pressure environment during compressor operation, reducing friction and wear, and prolonging the service life of the sealing component.

[0106] The low friction coefficient of PTFE means that the friction between the one-way sealing component 5 and the exhaust unit 1 during the exhaust process is minimal, reducing energy loss and helping to improve the overall energy efficiency of the compressor.

[0107] The excellent sealing performance of PTFE material enables the one-way sealing component 5 to maintain good sealing effect under high pressure, effectively preventing gas leakage and ensuring the efficiency and energy saving of the compressor operation.

[0108] The PTFE material one-way sealing component 5 is easy to clean and not easy to adsorb dirt. When it needs to be replaced, the presence of the fixing component 6 makes the replacement process more convenient, reduces downtime, and improves production efficiency.

[0109] Example 2

[0110] The compressor provided by the embodiments of the present application comprises a static scroll plate 7 and a sealing cover 8 used in cooperation with the static scroll plate 7, and a mounting space is formed between the static scroll plate 7 and the sealing cover 8 for mounting an exhaust structure, wherein the exhaust structure is the above-mentioned exhaust structure.

[0111] Further, a first exhaust hole 71 is provided on the static scroll plate 7, and a second exhaust hole is provided on the sealing cover 8, wherein the intake end 11 of the exhaust unit 1 in the exhaust structure communicates with the first exhaust hole, and the exhaust end 12 of the exhaust unit 1 communicates with the second exhaust hole.

[0112] The intake end 11 of the exhaust unit 1 directly communicates with the first exhaust hole 71 on the static scroll plate 7, ensuring that the compressed gas can be quickly and unobstructed transmitted from the compression chamber to the exhaust structure, reducing the pressure loss on the gas flow path and improving the exhaust efficiency.

[0113] The exhaust end 12 of the exhaust unit 1 is connected to the second exhaust hole on the sealing cover 8, and through the synergistic effect of the one-way sealing component 5 and the fixing component 6, the high-pressure gas can be stably discharged, avoiding the common gas turbulence and fluctuation in traditional exhaust structures, and improving the stability and efficiency of the compressor operation.

[0114] The exhaust structure is placed in the mounting space between the static scroll plate 7 and the sealing cover 8, which not only reduces the occupation of additional external space, but also simplifies the pipeline layout inside the compressor, making the design more compact and conducive to the miniaturization and light weight of the compressor.

[0115] Since the exhaust structure is fixed between the static scroll plate 7 and the sealing cover 8, its stability is significantly improved. Compared with the loose or vibration of the exhaust component in the traditional structure, the exhaust structure in the present technical solution is more stable, reducing the mechanical noise and potential structural damage caused by vibration.

[0116] The integrated design of the exhaust structure makes maintenance and inspection more convenient. When the exhaust structure needs to be repaired or replaced, the exhaust structure in the installation space can be accessed by only disassembling the sealing cover 8, avoiding the complex disassembly process in the traditional design, reducing downtime and maintenance cost.

[0117] In combination with the exhaust unit 1, the one-way sealing component 5, the fixing component 6, and the close fit with the static scroll plate 7 and the sealing cover 8, the technical solution not only solves the problems of pressure loss, gas fluctuation and inconvenient maintenance in the traditional exhaust structure, but also improves the overall performance and energy efficiency of the compressor, achieving the goals of energy saving, emission reduction and prolonging the service life of the equipment.

[0118] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0119] The relative arrangement of parts and steps, numerical expressions, and numerical values set forth in the examples are not intended to limit the scope of the application, unless otherwise specifically stated. At the same time, it should be understood that the sizes of the various parts shown in the drawings are not drawn in proportion to the actual proportions. The techniques, methods and devices known to those skilled in the relevant art can not be discussed in detail, but under appropriate circumstances, the techniques, methods and devices should be considered as part of the specification. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0120] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and in the absence of contrary statements, these orientation words do not indicate and imply that the devices or elements referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of the parts themselves.

[0121] For purposes of the description hereinafter, spatial or directional terms, for example, "above", "below", "upper", "lower", and the like, can be used, and relate to the device as illustrated in the figures. However, it is to be understood that no absolute or relative orientation of the device is intended or implied, unless specifically described as such. Terms concerning attachments, coupling and the like, such as "connected" and "coupled" and the like, are to be construed in accordance with their normal meanings, that is, as referring to an indirect or direct connection or coupling. Any reference to "comprising" or "containing" is to be construed as meaning "comprising or containing, but not limited to". Any reference to "comprising" or "containing" is to be construed as meaning "comprising or containing, but not limited to".

[0122] In addition, it should be pointed out that the use of the terms "first", "second" and the like, to describe various elements, is merely intended to differentiate the elements from one another, and does not connote any special order or order of precedence, unless otherwise specifically indicated. Thus, the use of the terms "first", "second" and the like, is not intended to limit the scope of the present application, and is not intended to connote any special order or order of precedence.

[0123] The preferred embodiments herein disclosed are not intended to limit or restrict the scope of the application, but merely convey the best mode contemplated by the inventors of carrying out the claimed application. Any modifications, variations or changes within the spirit and scope of the application as disclosed herein will be considered to fall within the scope of the application.

Claims

1. An exhaust structure, characterized in that, The exhaust structure includes: An exhaust unit (1) has an inlet end (11) and an outlet end (12). The inlet end (11) is used to communicate with the outlet of the exhaust structure, and the outlet end (12) is used to communicate with the outside. At least a portion of the exhaust unit (1) is configured to be open or closed, so as to be in a connected state that connects the airflow between the inlet end (11) and the outlet end (12) or in a closed state that blocks the airflow between the inlet end (11) and the outlet end (12). A switching unit (2) is disposed on the gas outlet structure. The switching unit (2) has a switching contact surface. At least a portion of the switching contact surface abuts against the exhaust unit (1) to press the exhaust unit (1) to switch from the connected state to the closed state. The switching unit (2) is movably disposed in a direction away from or close to the exhaust unit (1) so that when gas passes through the exhaust unit (1), the switching unit (2) moves in a direction away from the exhaust unit (1) under the pressure of the gas in the exhaust unit (1) so that the exhaust unit (1) is in the connected state.

2. The exhaust structure according to claim 1, characterized in that, The on / off unit (2) includes: The on / off component (21) has the on / off contact surface, which is inclined relative to the movement direction of the on / off unit (2). When the exhaust unit (1) is in the connected state, the contact surface between the on / off contact surface and the exhaust unit (1) is the first contact surface. When the exhaust unit (1) is in the closed state, the contact surface between the on / off contact surface and the exhaust unit (1) is the second contact surface. The contact area of ​​the second contact surface is greater than the contact area of ​​the first contact surface.

3. The exhaust structure according to claim 2, characterized in that, The on / off unit (2) further includes: An elastic member (22) is fixed at one end to the gas outlet structure. The free end of the elastic member (22) is connected to the end of the on / off member (21) away from the on / off contact surface. When gas passes through the exhaust unit (1), the elastic member (22) extends or shortens according to the flow rate of the gas in the exhaust unit (1), so that the on / off member moves relatively closer to or away from the center line of the exhaust unit (1) until the exhaust unit (1) is switched from the connected state to the closed state.

4. The exhaust structure according to claim 3, characterized in that, The air outlet structure is also provided with a limiting component (3), the limiting component (3) has a limiting space, the elastic component (22) is disposed in the limiting space, and the end of the elastic component (22) away from the on / off component (21) is disposed on the limiting component (3).

5. The exhaust structure according to claim 2, characterized in that, The switching component (21) includes a switching body (211), at least a portion of which is provided with a sliding guide position (212). The air outlet structure is also provided with a limiting component (3). The limiting component (3) is provided with a sliding engagement position (4) at a position corresponding to the sliding guide position (212). The sliding guide position (212) and the sliding engagement position are in sliding engagement.

6. The exhaust structure according to claim 1, characterized in that, The exhaust structure also includes a one-way sealing component (5) disposed on the exhaust unit (1) relatively close to the outlet end (12). The sealing surface of the one-way sealing component (5) is in contact with the exhaust unit (1). The one-way sealing component (5) is sleeved on the outside of the exhaust unit (1) and limited in the direction away from the outlet end of the exhaust unit (1) to prevent external substances from entering the exhaust unit (1) from the outlet end of the exhaust unit (1).

7. The exhaust structure according to claim 6, characterized in that, The one-way sealing component (5) includes: The sealing body (51) has a tapered outer wall surface. Along the flow direction of the gas in the exhaust unit (1), the inner diameter of the sealing body (51) gradually increases. The sealing body (51) is provided with a through hole (53) for the exhaust unit (1) to pass through. A sealing flange (52) is provided at the large-diameter end of the sealing body (51).

8. The exhaust structure according to claim 6, characterized in that, The exhaust structure also includes a fixing component (6) disposed on the mounting base to fix the one-way sealing component (5) by means of the fixing component (6); and / or, the one-way sealing component (5) is made of engineering plastic PTFE.

9. A compressor comprising a stationary scroll plate (7) and a sealing cover (8) cooperating with said stationary scroll plate (7), wherein an installation space is formed between said stationary scroll plate (7) and said sealing cover (8), said installation space being used to install an exhaust structure, characterized in that, The exhaust structure is the exhaust structure according to any one of claims 1 to 8.

10. The compressor according to claim 9, characterized in that, The static vortex disk (7) is provided with a first exhaust hole (71), and the sealing cover (8) is provided with a second exhaust hole. The air inlet (11) of the exhaust unit (1) in the exhaust structure is connected to the first exhaust hole, and the air outlet (12) of the exhaust unit (1) is connected to the second exhaust hole.

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