Screw compressor with leak detection function

Abstract

The application discloses a screw compressor with a leakage-proof detection function, and relates to the technical field of compressors.The screw compressor comprises a compression mechanism, a leakage-proof detection mechanism, a driving mechanism, a storage mechanism and a temperature control mechanism.The compression mechanism and the storage mechanism are fixedly connected, the leakage-proof detection mechanism and the compression mechanism are fixedly connected, the driving mechanism and the compression mechanism are in transmission connection, and the compression mechanism and the storage mechanism are both in communication with the temperature control mechanism.The compression mechanism prevents oil and gas from leaking during the compression process, thereby ensuring the compression efficiency.The leakage-proof detection mechanism is used for monitoring the sealing state and pressure change in a compression chamber.The driving mechanism provides stable power output, and the gas compression process continuously proceeds.The temperature control mechanism reduces the overheating problem of the machine body and lubricating oil caused by continuous compression, thereby maintaining the stability of the compressed medium, preventing the oil film from being broken, the sealing from being invalid or the lubricating oil from being deteriorated, and improving the operation safety and service life of the whole machine.

Description

Technical Field

[0001] This invention relates to the field of compressor technology, specifically a screw compressor with leak detection function. Background Technology

[0002] With the continuous development of industrial automation and energy-saving technologies, screw compressors, with their advantages of continuous compression, stable exhaust, high efficiency, and low noise, have been widely used in various fields such as air conditioning and refrigeration, gas transportation, petrochemicals, power, and rail transportation. In recent years, integration, intelligence, and modularization have become the main trends in the development of screw compressors, and the market has placed higher demands on the reliability, sealing performance, energy efficiency, and operational stability of compression systems.

[0003] In the prior art, screw compressors that disclose compression functions mostly adopt a fixed cavity structure and use a double helix structure to perform compression.

[0004] The existing technology still has the following shortcomings: First, it lacks dynamic adjustable control of the compression section volume, which cannot adapt to the compression efficiency fluctuations caused by changes in operating conditions. Second, it lacks a temperature control system and a lubrication system, which leads to damage to the machine body and affects its service life. Finally, the lack of a leak detection mechanism causes gas backflow, resulting in a lag in compression efficiency and affecting the efficiency of use. Therefore, those skilled in the art provide a screw compressor with a leak detection function to solve the problems mentioned in the background. Summary of the Invention

[0005] The purpose of this invention is to provide a screw compressor with a leak detection function to solve the problems mentioned in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The screw compressor includes a compression mechanism, a leak detection mechanism, a drive mechanism, a storage mechanism, and a temperature control mechanism. The compression mechanism and the storage mechanism are fastened together, the leak detection mechanism and the compression mechanism are fastened together, the drive mechanism and the compression mechanism are driven together, and both the compression mechanism and the storage mechanism are connected to the temperature control mechanism.

[0008] By adopting the above technical solution, the screw compressor, through the combination of a compression mechanism, a leak detection mechanism, a drive mechanism, a storage mechanism, and a temperature control mechanism, forms a multi-functional compression system integrating compression, drive, oil storage, temperature control, and leak detection. The compression mechanism and the storage mechanism are tightly connected to achieve a sealed connection of the gas passage, preventing oil and gas leakage during compression and ensuring compression efficiency. The leak detection mechanism is fastened to the compression mechanism, enabling real-time monitoring of the sealing status and pressure changes within the compression chamber, facilitating rapid identification of abnormalities when the screw wears or lubrication is poor. The drive mechanism, through a transmission connection with the compression mechanism, provides stable power output to the compression components, enabling continuous screw rotation and gas compression. The temperature control mechanism is connected to both the compression and storage mechanisms via a connecting structure, allowing the cooling medium to circulate between the compressor body and the oil storage circuit, playing a role in synchronous temperature control and heat exchange. This effectively reduces overheating of the compressor body and lubricating oil caused by continuous compression, thereby maintaining the stability of the compressed medium, preventing oil film rupture, seal failure, or lubricating oil deterioration, and improving the overall operational safety and service life of the machine.

[0009] Furthermore, the compression mechanism includes a compression assembly, a compressor body, and a filter assembly. The compression assembly and the compressor body are fastened together, and the filter assembly and the compression assembly are connected. The compressor body has an air inlet and an air outlet. The air inlet is located above one end of the compressor body, and the air outlet is located below the end of the compressor body away from the air inlet. The compressor body is connected to the storage mechanism and the temperature control mechanism.

[0010] By adopting the above technical solution, the compression assembly is firmly connected to the compressor body, ensuring the stability of power transmission and the compression chamber. The filter assembly is connected to the compression assembly, allowing impurities to be removed from the gas entering the compression zone before compression, extending screw life and improving the purity of the compressed medium. The compressor body has an inlet and an outlet. The inlet is located at the top of one end of the compressor body, which facilitates the intake of cleaner, higher-level air and reduces the entry of dust and particulate impurities. The outlet is located below the inlet, effectively following the compressed airflow path and achieving directional control of gas flow and high-pressure discharge. The compressor body is connected to the storage mechanism, allowing the compressed gas to be directly delivered to the oil-gas separation and storage unit for subsequent processing. Simultaneously, the compressor body is connected to the temperature control mechanism, which effectively regulates the heat during the compression process through temperature control circulation, preventing high temperatures from affecting the compression effect and oil performance. This achieves a comprehensive effect of stable operation, extended service life, improved compression efficiency, and guaranteed oil-gas sealing.

[0011] Furthermore, the compression assembly includes a female screw, a male screw, a compression block, and a movable hydraulic cylinder. The drive mechanism is connected to the compression assembly, the drive mechanism is connected to the female screw, the drive mechanism is connected to the male screw, the female screw and the male screw abut against each other, both the female screw and the male screw are discontinuous spirals, and the common discontinuity of the female screw and the male screw is provided with a segmented cavity in the compressor body. The compression block and the compressor body are slidably connected, the movable hydraulic cylinder is connected to the compression block, and the movable hydraulic cylinder is fastened to the compressor body.

[0012] By adopting the above technical solution, the drive mechanism is connected to the female and male screws respectively, driving the two screws to rotate synchronously and forming a closed compression space in the contact area. The screws adopt a discontinuous helical structure, forming multiple periodic compression zones during rotation, so that the gas is compressed in multiple compression sections in sequence, improving compression efficiency and compression ratio. The discontinuous structure of the female and male screws together forms segmented cavities with the compressor body at their corresponding parts. The segmented cavities are locally sealed compression spaces formed during helical meshing, which helps to achieve variable volume compression and optimized energy distribution. The compression block is set in the compressor body and is slidably connected to the body. It can move along the length of the compression cavity to adjust the compression section boundary, thereby changing the effective compression volume. One end of the moving hydraulic cylinder is fixedly connected to the compressor body, and the other end is drivenly connected to the compression block. By controlling the extension and retraction of the hydraulic cylinder, the position of the compression block can be precisely adjusted, realizing dynamic intervention and pressure stabilization control of the compression process. The overall structure, through the combination of a dynamically adjustable compression chamber and a segmented compression path, not only enhances compression efficiency but also allows for flexible adjustment of the working state according to load changes, thereby improving system adaptability, energy efficiency, and screw protection capabilities.

[0013] Furthermore, the filtration assembly includes a collection box, a control valve, and a gas filter, with the control valve and gas filter connected, the gas filter and collection box connected, and the gas filter and compressor body connected.

[0014] By adopting the above technical solution, the gas filter is connected to the collection box, allowing trapped dust, oil mist, and particulate impurities to automatically settle into the collection box, preventing repeated circulation of impurities and improving filtration accuracy and the reliability of subsequent compression processes. The gas filter is also connected to the compressor body, ensuring that purified air is directly delivered to the compression chamber to participate in the compression process, effectively protecting the surfaces of the male and female screws from wear by foreign objects. This filtration assembly sets up the first line of defense before the gas enters, not only improving the cleanliness of the compressed medium but also extending the equipment maintenance cycle through the periodic drainage structure of the collection box, enhancing the system's durability and operational stability, and providing front-end purification protection for the overall performance of the screw compressor.

[0015] Furthermore, the leak detection mechanism includes a mesh cover, a telescopic partition, an injector, a pressure sensor, a telescopic electromagnetic block, a telescopic magnetic block, and a telescopic elastic element. The mesh cover is securely connected to the compressor body, the telescopic electromagnetic block is securely connected to the compressor body, the telescopic magnetic block and the telescopic electromagnetic block are driven by magnetic pole repulsion, the telescopic elastic element and the telescopic magnetic block are securely connected, the telescopic elastic element and the telescopic electromagnetic block are securely connected, the injector is securely connected to the compressor body, the injector is connected to the storage mechanism, the pressure sensor is securely connected to the compressor body, the pressure sensor and the injector are electrically connected, and the pressure sensor and the telescopic electromagnetic block are electrically connected.

[0016] By adopting the above technical solution, the telescopic electromagnetic block is firmly connected to the compressor body, and its internal electromagnetic coil can generate a magnetic field under the drive of an electrical signal. The telescopic magnetic block and the telescopic electromagnetic block repel each other, and the telescopic movement of the magnetic block is realized through electromagnetic repulsion, thereby driving the telescopic partition connected to it to adjust its position, which is used to close or open the segmented cavity. The telescopic elastic element is firmly connected to the telescopic magnetic block and the telescopic electromagnetic block respectively, providing a restoring force when the magnetic block is not energized, ensuring that the structure remains open when there are no abnormalities. The oil injector is firmly connected to the compressor body and is connected to the storage mechanism through a pipeline. When a sealing abnormality is detected, it can accurately spray lubricating oil to the screw meshing area to maintain the integrity of the oil film and lubrication. The pressure sensor is firmly connected to the compressor body to detect the air pressure change in the compression chamber in real time, and is electrically connected to the oil injector and the telescopic electromagnetic block. When abnormal air pressure fluctuations indicate that the seal may fail, the sensor sends a control signal, which on the one hand activates the oil injector for oil compensation, and on the other hand drives the telescopic electromagnetic block to change the position of the magnetic block and the partition to strengthen the sealing closure. The entire system is based on real-time feedback of differential pressure signals and completes sealing adjustment and oil compensation through electromagnetic-elastic combined drive. It realizes active suppression and emergency repair of faults such as oil film rupture and seal leakage, and enhances the operating safety and service life of screw compressors under extreme conditions such as high load and high temperature.

[0017] Furthermore, the drive mechanism includes a drive motor, a drive belt, and a tension pulley. The drive motor and the drive belt are connected by a drive transmission, the drive belt and the tension pulley are connected by a drive transmission, and both the female screw and the male screw are connected by a drive transmission to the tension pulley. The tension pulley is provided with a V-shaped groove.

[0018] By adopting the above technical solution, the drive motor serves as the power source, with its output shaft connected to the drive belt. Linear transmission is achieved through rotational output. The drive belt is then connected to the tensioner pulley, further distributing and transmitting the motor's power to both sides of the female and male screws. The tensioner pulley has a V-shaped groove, creating a wedge-shaped contact structure between the drive belt and the groove. This improves friction and synchronization accuracy during transmission, prevents belt slippage, and effectively enhances transmission efficiency and response speed. Both the female and male screws are connected to the tensioner pulley, achieving synchronous meshing and rotation of the two screws. This ensures a stable compression path for the gas within the compression chamber during screw rotation and compression, extending the service life of the drive belt.

[0019] Furthermore, the storage mechanism includes an oil-gas separator, a gas storage tank, an exhaust pipe, an exhaust valve, a liquid-oil circulation pump, a liquid-oil circulation pipe, a filter screen, and a liquid-oil storage tank. The oil-gas separator is connected to the compressor body, the gas storage tank is connected to the oil-gas separator, the exhaust pipe is connected to the exhaust valve, the exhaust valve is connected to the gas storage tank, the liquid-oil circulation pump is connected to the liquid-oil circulation pipe, the filter screen is securely connected to the liquid-oil storage tank, and the liquid-oil storage tank is connected to the fuel injector.

[0020] By adopting the above technical solution, the mixed gas discharged from the compressor first enters the oil-gas separator, where oil mist is efficiently separated from the gas through centrifugal force or physical collision, allowing the oil to flow back while the gas is further purified. The purified gas is then temporarily stored in a gas storage tank connected to the separator, serving to buffer system pressure fluctuations. The gas storage tank is connected to an exhaust pipe and an exhaust valve, which controls the safe discharge to the outside when the system pressure reaches a set threshold, thereby maintaining stable system pressure. The separated and recovered liquid lubricating oil is driven by a liquid oil circulation pump and flows through a liquid oil circulation pipe to form a closed circulation channel. To ensure the cleanliness of the returned oil, the liquid oil storage tank uses a tightly connected filter screen to filter impurities in the oil. The purified lubricating oil flows back into the storage tank and is finally supplied to the compressor screw engagement part again through a pipeline connected to the fuel injector. The system works by separating oil and gas and recycling liquid oil, which not only enables the reuse of lubricating oil and reduces consumable costs, but also improves the stability and safety of the overall system by jointly regulating the gas pressure through the gas storage tank and the exhaust valve. At the same time, the filter screen improves the cleanliness of the oil and extends the service life of the screw and related components, significantly improving the operating efficiency and reliability of the screw compressor.

[0021] Furthermore, the temperature control mechanism includes an air-cooled fan, a cooling box, a temperature-controlled circulating pump, and a temperature-controlled circulating pipe. The air-cooled fan and the compressor body are fastened together. The air-cooled fan is used to cool the cooling box. The cooling box is connected to the temperature-controlled circulating pipe, the temperature-controlled circulating pipe is connected to the temperature-controlled circulating pump, the temperature-controlled circulating pump is connected to the cooling box, and the temperature-controlled circulating pipe is spirally wound around the liquid oil circulating pipe and the liquid oil storage tank.

[0022] By adopting the above technical solution, the air-cooled fan is firmly connected to the compressor body, cooling the coolant circulating in the cooling tank. The air-cooled liquid in the cooling tank is then discharged through a temperature-controlled circulation pipe connected to it, forming a closed-loop circulation flow driven by a temperature-controlled circulation pump. The temperature-controlled circulation pipe is spirally wound around the oil circulation pipe and the oil storage tank, enabling indirect heat exchange between the flowing lubricating oil and the stored oil, reducing the oil temperature, and effectively avoiding problems such as oil film rupture, lubrication failure, and system leakage caused by high-temperature deterioration of the oil.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] The compression assembly utilizes the meshing structure of male and female screws to compress gas under the drive mechanism. The discontinuous helical structure forms segmented cavities within the compressor body during meshing, facilitating multi-cavity compression and pressure stabilization. The compression block slides within the compressor body under the drive of a moving hydraulic cylinder, dynamically adjusting the volume of the segmented cavities to control the compression ratio. The filtration assembly removes impurities from the compressed air using a gas filter, and a control valve regulates the gas flow and directs the gas into a collection box for centralized impurity removal. The leak detection mechanism uses a mesh cover to physically isolate the compression area. An oil injector connects to the storage mechanism to spray lubricating oil into the compression chamber. The telescopic electromagnetic block is linked to a pressure sensor via an electrical signal; when abnormal pressure fluctuations are detected, the telescopic magnetic block is displaced under the action of the telescopic elastic element, achieving an abnormal response and further improving the reliability of the compression system's sealing status identification. The drive motor in the drive mechanism drives the tension wheel to rotate via a drive belt, and the V-groove on the tension wheel drives the male and female screws to rotate synchronously, forming a stable and reliable power output system. The oil-gas separator in the storage mechanism is used to separate the mixed gas... The oil is separated into gas and gas. The separated gas enters the gas storage tank and is released through the exhaust pipe and exhaust valve. The oil is sent back to the oil storage tank by the oil circulation pump and the oil circulation pipe. After being purified by the filter screen, it is supplied to the oil injector again, forming a closed oil lubrication cycle. The temperature control mechanism cools the cooling box with an air-cooled fan. The coolant is circulated and transported by the temperature control circulation pump and temperature control circulation pipe. It spirally winds around the oil circulation pipe and the oil storage tank to further stabilize the lubricating oil temperature, improve the oil film performance and lubrication efficiency, and prevent the oil from deteriorating at high temperatures. This ensures the thermal balance and sealing reliability of the screw compressor during long-term operation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the compression component structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the filter component structure of the present invention;

[0028] Figure 4 This is a schematic diagram of the leak detection mechanism of the present invention;

[0029] Figure 5 This is a schematic diagram of the drive mechanism structure of the present invention;

[0030] Figure 6 This is a schematic diagram of the storage mechanism structure of the present invention;

[0031] Figure 7 This is a schematic diagram of the temperature control mechanism of the present invention.

[0032] In the diagram: 1. Compression mechanism; 11. Compression assembly; 111. Female screw; 112. Male screw; 113. Compression block; 114. Moving hydraulic cylinder; 12. Compressor body; 121. Air inlet; 122. Air outlet; 123. Segmented chamber; 13. Filter assembly; 131. Collection box; 132. Control valve; 133. Gas filter; 2. Leakage detection mechanism; 21. Mesh cover; 22. Telescopic partition; 23. Fuel injector; 24. Pressure sensor; 25. Telescopic electromagnetic block; 2 6. Telescopic magnetic block; 27. Telescopic elastic element; 3. Drive mechanism; 31. Drive motor; 32. Drive belt; 33. Tensioner; 331. V-groove; 4. Storage mechanism; 41. Oil-gas separator; 42. Gas storage tank; 43. Exhaust pipe; 44. Exhaust valve; 45. Liquid oil circulation pump; 46. Liquid oil circulation pipe; 47. Filter screen; 48. Liquid oil storage tank; 5. Temperature control mechanism; 51. Air-cooled fan; 52. Cooling box; 53. Temperature-controlled circulation pump; 54. Temperature-controlled circulation pipe. Detailed Implementation

[0033] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] Please see Figure 1 - Figure 7 As shown, the present invention provides a screw compressor technical solution with leak detection function:

[0035] The screw compressor includes a compression mechanism 1, a leak detection mechanism 2, a drive mechanism 3, a storage mechanism 4, and a temperature control mechanism 5. The compression mechanism 1 and the storage mechanism 4 are fastened together, the leak detection mechanism 2 and the compression mechanism 1 are fastened together, the drive mechanism 3 and the compression mechanism 1 are driven together, and both the compression mechanism 1 and the storage mechanism 4 are connected to the temperature control mechanism 5.

[0036] By adopting the above technical solution, the screw compressor is composed of a compression mechanism 1, a leak detection mechanism 2, a drive mechanism 3, a storage mechanism 4, and a temperature control mechanism 5, forming a multi-functional compression system that integrates compression, drive, oil storage, temperature control, and leak detection. The compression mechanism 1 and the storage mechanism 4 are fastened together to achieve a sealed connection of the gas passage, preventing oil and gas leakage during compression and ensuring compression efficiency. The leak detection mechanism 2 is fastened to the compression mechanism 1, enabling it to monitor the sealing status and pressure changes in the compression chamber in real time, facilitating rapid identification of abnormalities when the screw wears or lubrication is poor. The drive mechanism 3 is connected to the compression mechanism 1 to provide stable power output to the compression assembly 11, enabling continuous screw rotation and gas compression. The temperature control mechanism 5 is connected to both the compression mechanism 1 and the storage mechanism 4 through a connecting structure, allowing the cooling medium to circulate between the compressor body 12 and the oil storage circuit, playing a role in synchronous temperature control and heat exchange. This effectively reduces the overheating of the machine body and lubricating oil caused by continuous compression, thereby maintaining the stability of the compressed medium, preventing oil film rupture, seal failure, or lubricating oil deterioration, and improving the overall operating safety and service life of the machine.

[0037] Furthermore, the compression mechanism 1 includes a compression assembly 11, a compressor body 12, and a filter assembly 13. The compression assembly 11 and the compressor body 12 are fastened together, and the filter assembly 13 is connected to the compression assembly 11. The compressor body 12 is provided with an air inlet 121 and an air outlet 122. The air inlet 121 is located above one end of the compressor body 12, and the air outlet 122 is located below the end of the compressor body 12 away from the air inlet 121. The compressor body 12 is connected to the storage mechanism and the temperature control mechanism 5.

[0038] By adopting the above technical solution, the compression assembly 11 is firmly connected to the compressor body 12, ensuring the stability of power transmission and the compression chamber. The filter assembly 13 is connected to the compression assembly 11, allowing impurities to be removed from the gas entering the compression zone before compression, extending the screw life and improving the purity of the compressed medium. The compressor body 12 is provided with an air inlet 121 and an air outlet 122. The air inlet 121 is located above one end of the compressor body 12, which is conducive to drawing in cleaner high-level air and reducing the entry of dust and particulate impurities. The air outlet 122 is located below the air inlet 121, effectively conforming to the compressed airflow path and realizing directional control of gas flow and high-pressure discharge. The compressor body 12 is connected to the storage mechanism 4, allowing the compressed gas to be directly delivered to the oil-gas separation and storage unit for subsequent processing. At the same time, the compressor body 12 is connected to the temperature control mechanism 5, which effectively regulates the heat during the compression process through temperature control circulation, preventing high temperature from affecting the compression effect and oil performance, thereby achieving a comprehensive effect of stable operation, extended service life, improved compression efficiency, and guaranteed oil-gas sealing.

[0039] Furthermore, the compression assembly 11 includes a female screw 111, a male screw 112, a compression block 113, and a movable hydraulic cylinder 114. The drive mechanism 3 is drivenly connected to the compression assembly 11, the female screw 111, and the male screw 112. The female screw 111 and the male screw 112 abut against each other. Both the female screw 111 and the male screw 112 are discontinuous spirals. A segmented cavity 123 is provided between the common discontinuity of the female screw 111 and the male screw 112 and the compressor body 12. The compression block 113 is slidably connected to the compressor body 12. The movable hydraulic cylinder 114 is drivenly connected to the compression block 113 and is fastened to the compressor body 12.

[0040] By adopting the above technical solution, the drive mechanism 3 is connected to the female screw 111 and the male screw 112 respectively, driving the two screws to rotate synchronously and forming a closed compression space in the contact area. The screws adopt a discontinuous helical structure, forming multiple periodic compression zones during rotation, so that the gas is compressed in multiple compression sections in sequence, improving compression efficiency and compression ratio. The discontinuous structure of the female screw 111 and the male screw 112 together form a segmented cavity 123 with the compressor body 12 at their corresponding parts. The segmented cavity 123 is a locally sealed compression space formed during helical meshing, which helps to achieve variable volume compression and optimized energy distribution. The compression block 113 is set in the compressor body 12 and is slidably connected to the body. It can move along the length of the compression cavity to adjust the compression section boundary, thereby changing the effective compression volume. One end of the moving hydraulic cylinder 114 is fixedly connected to the compressor body 12, and the other end is connected to the compression block 113. By controlling the extension and retraction of the hydraulic cylinder, the position of the compression block 113 can be precisely adjusted, realizing dynamic intervention and pressure stabilization control of the compression process. The overall structure, through the combination of a dynamically adjustable compression chamber and a segmented compression path, not only enhances compression efficiency but also allows for flexible adjustment of the working state according to load changes, thereby improving system adaptability, energy efficiency, and screw protection capabilities.

[0041] Furthermore, the filter assembly 13 includes a collection box 131, a control valve 132, and a gas filter 133. The control valve 132 is connected to the gas filter 133, the gas filter 133 is connected to the collection box 131, and the gas filter 133 is connected to the compressor body 12.

[0042] By adopting the above technical solution, the gas filter 133 is connected to the collection box 131, allowing the trapped dust, oil mist, and particulate impurities to automatically settle into the collection box 131, avoiding repeated circulation of impurities and improving filtration accuracy and the reliability of subsequent compression processes. The gas filter 133 is also connected to the compressor body 12, ensuring that the purified air is directly delivered to the compression chamber to participate in the compression process, effectively protecting the surface of the male and female screws 112 from wear by foreign objects. This filter assembly 13 sets up the first line of defense before the gas enters, not only improving the cleanliness of the compressed medium but also extending the equipment maintenance cycle through the periodic drainage structure of the collection box 131, enhancing the durability and operational stability of the system, and providing front-end purification protection for the overall performance of the screw compressor.

[0043] Furthermore, the leak detection mechanism 2 includes a mesh cover 21, a telescopic partition 22, an oil injector 23, a pressure sensor 24, a telescopic electromagnetic block 25, a telescopic magnetic block 26, and a telescopic elastic element 27. The mesh cover 21 is fastened to the compressor body 12, the telescopic electromagnetic block 25 is fastened to the compressor body 12, the telescopic magnetic block 26 and the telescopic electromagnetic block 25 are driven by magnetic pole repulsion, the telescopic elastic element 27 is fastened to the telescopic magnetic block 26, the telescopic elastic element 27 is fastened to the telescopic electromagnetic block 25, the oil injector 23 is fastened to the compressor body 12, the oil injector 23 is connected to the storage mechanism 4, the pressure sensor 24 is fastened to the compressor body 12, the pressure sensor 24 is electrically connected to the oil injector 23, and the pressure sensor 24 is electrically connected to the telescopic electromagnetic block 25.

[0044] By adopting the above technical solution, the telescopic electromagnetic block 25 is firmly connected to the compressor body 12, and its internal electromagnetic coil can form a magnetic field under the drive of an electrical signal; the telescopic magnetic block 26 and the telescopic electromagnetic block 25 are driven by the repulsive magnetic poles, and the telescopic movement of the magnetic block is realized through electromagnetic repulsion, thereby driving the telescopic partition 22 connected to it to achieve position adjustment, which is used to close or open the segmented cavity 123. The telescopic elastic element 27 is firmly connected to the telescopic magnetic block 26 and the telescopic electromagnetic block 25 respectively, and provides a restoring force when the magnetic block is not energized, ensuring that the structure remains open when there is no abnormality. The oil injector 23 is firmly connected to the compressor body 12 and is connected to the storage mechanism 4 through a pipe. When a sealing abnormality is detected, it can accurately spray lubricating oil to the screw meshing area to maintain the integrity of the oil film and lubrication. Pressure sensor 24 is securely connected to compressor body 12 to detect real-time changes in air pressure within the compression chamber. It is also electrically connected to fuel injector 23 and telescopic electromagnetic block 25. When abnormal air pressure fluctuations indicate potential seal failure, the sensor sends a control signal. This signal activates fuel injector 23 for oil compensation and simultaneously drives telescopic electromagnetic block 25 to change the position of the magnetic block relative to the baffle, thus strengthening the seal. The entire system, based on real-time feedback of the differential pressure signal, uses a combined electromagnetic-elastic drive to achieve seal adjustment and oil compensation. This proactively suppresses and provides emergency repair for faults such as oil film rupture and seal leakage, enhancing the operational safety and service life of the screw compressor under extreme conditions such as high load and high temperature.

[0045] Furthermore, the drive mechanism 3 includes a drive motor 31, a drive belt 32, and a tensioning pulley 33. The drive motor 31 and the drive belt 32 are connected in a transmission manner, and the drive belt 32 and the tensioning pulley 33 are connected in a transmission manner. The female screw 111 and the male screw 112 are both connected in a transmission manner to the tensioning pulley 33, and the tensioning pulley 33 is provided with a V-shaped groove 331.

[0046] By adopting the above technical solution, the drive motor 31 serves as the power source, with its output shaft connected to the drive belt 32 for transmission. Linear transmission is achieved through rotational output. The drive belt 32 is then connected to the tension pulley 33, further distributing and transmitting the motor's power to both sides of the female screw 111 and the male screw 112. The tension pulley 33 has a V-shaped groove 331, creating a wedge-shaped contact structure between the drive belt 32 and the groove. This improves friction and synchronization accuracy during transmission, prevents belt slippage, and effectively enhances transmission efficiency and response speed. Both the female screw 111 and the male screw 112 are connected to the tension pulley 33, achieving synchronous meshing and rotation of the two screws. This ensures a stable compression path for the gas within the compression chamber during screw rotation and compression, extending the service life of the drive belt 32.

[0047] Furthermore, the storage mechanism 4 includes an oil-gas separator 41, a gas storage tank 42, an exhaust pipe 43, an exhaust valve 44, a liquid oil circulation pump 45, a liquid oil circulation pipe 46, a filter screen 47, and a liquid oil storage tank 48. The oil-gas separator 41 is connected to the compressor body 12, the gas storage tank 42 is connected to the oil-gas separator 41, the exhaust pipe 43 is connected to the exhaust valve 44, the exhaust valve 44 is connected to the gas storage tank 42, the liquid oil circulation pump 45 is connected to the liquid oil circulation pipe 46, the filter screen 47 is securely connected to the liquid oil storage tank 48, and the liquid oil storage tank 48 is connected to the fuel injector 23.

[0048] By adopting the above technical solution, the mixed gas discharged from the compressor body 12 first enters the oil-gas separator 41, where oil mist in the gas is efficiently separated by centrifugation or physical collision, allowing the oil to flow back while the gas is further purified. The purified gas is then temporarily stored in the gas storage tank 42 connected to it, which buffers system pressure fluctuations. The gas storage tank 42 is connected to the exhaust pipe 43 and the exhaust valve 44. When the system pressure reaches a set threshold, the exhaust valve 44 controls the safe discharge to the outside, thereby maintaining stable system pressure. The separated and recovered liquid lubricating oil is driven by the liquid oil circulation pump 45 and flows through the liquid oil circulation pipe 46 to form a closed circulation channel. To ensure the cleanliness of the returned oil, the liquid oil storage tank 48 filters impurities in the oil through a tightly connected filter screen 47. The purified lubricating oil flows back into the storage tank and is finally supplied to the compressor screw meshing part again through the pipeline connected to the oil injector 23. The working principle of this system is to achieve the reuse of lubricating oil and reduce the cost of consumables through oil-gas separation and liquid-oil recycling. At the same time, the gas storage tank 42 and the exhaust valve 44 jointly regulate the gas pressure, thereby improving the stability and safety of the overall system operation. Furthermore, the filter screen 47 improves the cleanliness of the oil, extends the service life of the screw and related components, and significantly improves the operating efficiency and reliability of the screw compressor.

[0049] Furthermore, the temperature control mechanism 5 includes an air-cooled fan 51, a cooling box 52, a temperature-controlled circulation pump 53, and a temperature-controlled circulation pipe 54. The air-cooled fan 51 is fastened to the compressor body 12. The air-cooled fan 51 is used to cool the cooling box 52. The cooling box 52 is connected to the temperature-controlled circulation pipe 54. The temperature-controlled circulation pipe 54 is connected to the temperature-controlled circulation pump 53. The temperature-controlled circulation pump 53 is connected to the cooling box 52. The temperature-controlled circulation pipe 54 is spirally wound around the liquid oil circulation pipe 46 and the liquid oil storage tank 48.

[0050] By adopting the above technical solution, the air-cooled fan 51 is firmly connected to the compressor body 12, cooling the coolant circulating in the cooling tank 52. The air-cooled liquid in the cooling tank 52 is discharged through the temperature-controlled circulation pipe 54 connected to it, and forms a closed-loop circulation flow under the drive of the temperature-controlled circulation pump 53. The temperature-controlled circulation pipe 54 is spirally wound around the oil circulation pipe 46 and the oil storage tank 48, which can realize indirect heat exchange between the flowing lubricating oil and the stored oil, reduce the oil temperature, and thus effectively avoid problems such as oil film rupture, lubrication failure and system leakage caused by high-temperature deterioration of oil.

[0051] Working principle of the invention:

[0052] The compression assembly 11 utilizes the meshing structure of the female screw 111 and the male screw 112 to achieve gas compression under the drive of the drive mechanism 3. The discontinuous spiral structure forms segmented cavities 123 within the compressor body 12 during the meshing process, which helps to achieve multi-cavity compression and pressure stabilization. The compression block 113 can slide within the compressor body 12 under the drive of the movable hydraulic cylinder 114, thereby dynamically adjusting the volume of the segmented cavities 123 to control the compression ratio. The filter assembly 13 removes impurities from the compressed air through the gas filter 133, and the control valve 132 is used to regulate the gas flow rate and guide the gas into the collection box 131 for centralized impurity removal. The leak detection mechanism 2 uses a mesh cover 21 to cover the compression area, providing physical isolation. The oil injector 23 connects to the storage mechanism 4 to spray lubricating oil into the compression chamber. The telescopic electromagnetic block 25 is linked to the pressure sensor 24 via an electrical signal. When an abnormal pressure fluctuation is detected, the telescopic magnetic block 26 is driven to displace under the action of the telescopic elastic element 27, achieving an abnormal response and further improving the reliability of the compression system's sealing status identification. The drive motor 31 in the drive mechanism 3 drives the tension wheel 33 to rotate via the drive belt 32, and drives the male and female screws 112 to rotate synchronously via the V-groove 331 on the tension wheel 33, forming a stable and reliable power output system. The oil-gas separator 41 in the storage mechanism 4 is used to separate the oil-gas mixture... Oil and liquid are separated in the gas. The separated gas enters the gas storage tank 42 and is released through the exhaust pipe 43 and exhaust valve 44. The oil is sent back to the oil storage tank 48 by the oil circulation pump 45 through the oil circulation pipe 46, and is purified by the filter screen 47 before being supplied to the oil injector 23, forming a closed oil lubrication cycle. The temperature control mechanism 5 cools the cooling box 52 through the air-cooled fan 51, and circulates the coolant through the temperature control circulation pump 53 and temperature control circulation pipe 54. The coolant is spirally wound around the oil circulation pipe 46 and the oil storage tank 48, further stabilizing the lubricating oil temperature, improving the oil film performance and lubrication efficiency, and preventing the oil from deteriorating at high temperatures, thereby ensuring the thermal balance and sealing reliability of the screw compressor during long-term operation.

[0053] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A screw compressor with leak detection function, characterized in that: The screw compressor includes a compression mechanism (1), a leak detection mechanism (2), a drive mechanism (3), a storage mechanism (4), and a temperature control mechanism (5). The compression mechanism (1) and the storage mechanism (4) are fastened together. The leak detection mechanism (2) and the compression mechanism (1) are fastened together. The drive mechanism (3) and the compression mechanism (1) are connected by a transmission. The compression mechanism (1) and the storage mechanism (4) are both connected to the temperature control mechanism (5). The compression mechanism (1) includes a compression assembly (11), a compressor body (12), and a filter assembly (13). The compression assembly (11) and the compressor body (12) are fastened together. The filter assembly (13) and the compression assembly (11) are connected. The compressor body (12) is provided with an air inlet (121) and an air outlet (122). The air inlet (121) is located above one end of the compressor body (12), and the air outlet (122) is located below the end of the compressor body (12) away from the air inlet (121). The compressor body (12) is connected to the storage mechanism (4) and the temperature control mechanism (5). The compression assembly (11) includes a female screw (111), a male screw (112), a compression block (113), and a movable hydraulic cylinder (114). The drive mechanism (3) is connected to the compression assembly (11) in a transmission manner. The drive mechanism (3) is connected to the female screw (111) in a transmission manner. The drive mechanism (3) is connected to the male screw (112) in a transmission manner. The female screw (111) and the male screw (112) abut against each other. The female screw (111) and the male screw (112) are both discontinuous spirals. The discontinuous part of the female screw (111) and the male screw (112) is provided with a segmented cavity (123) with the compressor body (12). The compression block (113) is slidably connected to the compressor body (12). The movable hydraulic cylinder (114) is connected to the compression block (113) in a transmission manner. The movable hydraulic cylinder (114) is fastened to the compressor body (12). The leak detection mechanism (2) includes a mesh cover (21), a telescopic partition (22), an oil injector (23), a pressure sensor (24), a telescopic electromagnetic block (25), a telescopic magnetic block (26), and a telescopic elastic element (27). The mesh cover (21) is fastened to the compressor body (12), the telescopic electromagnetic block (25) is fastened to the compressor body (12), the telescopic magnetic block (26) and the telescopic electromagnetic block (25) are driven by magnetic repulsion, and the telescopic elastic element (27) is... 7) and the telescopic magnetic block (26) are fastened together. The telescopic elastic element (27) and the telescopic electromagnetic block (25) are fastened together. The fuel injector (23) and the compressor body (12) are fastened together. The fuel injector (23) and the storage mechanism (4) are connected together. The pressure sensor (24) and the compressor body (12) are fastened together. The pressure sensor (24) and the fuel injector (23) are electrically connected. The pressure sensor (24) and the telescopic electromagnetic block (25) are electrically connected.

2. A screw compressor with leak detection function according to claim 1, characterized in that: The filter assembly (13) includes a collection box (131), a control valve (132) and a gas filter (133). The control valve (132) and the gas filter (133) are connected. The gas filter (133) and the collection box (131) are connected. The gas filter (133) and the compressor body (12) are connected.

3. A screw compressor with leak detection function according to claim 2, characterized in that: The drive mechanism (3) includes a drive motor (31), a drive belt (32) and a tension wheel (33). The drive motor (31) and the drive belt (32) are connected in a transmission connection. The drive belt (32) and the tension wheel (33) are connected in a transmission connection. The female screw (111) and the male screw (112) are both connected in a transmission connection to the tension wheel (33). The tension wheel (33) is provided with a V-shaped groove (331).

4. A screw compressor with leak detection function according to claim 3, characterized in that: The storage mechanism (4) includes an oil-gas separator (41), a gas storage tank (42), an exhaust pipe (43), an exhaust valve (44), a liquid oil circulation pump (45), a liquid oil circulation pipe (46), a filter screen (47), and a liquid oil storage tank (48). The oil-gas separator (41) is connected to the compressor body (12), the gas storage tank (42) is connected to the oil-gas separator (41), the exhaust pipe (43) is connected to the exhaust valve (44), the exhaust valve (44) is connected to the gas storage tank (42), the liquid oil circulation pump (45) is connected to the liquid oil circulation pipe (46), the filter screen (47) is fastened to the liquid oil storage tank (48), and the liquid oil storage tank (48) is connected to the fuel injector (23).

5. A screw compressor with leak detection function according to claim 4, characterized in that: The temperature control mechanism (5) includes an air-cooled fan (51), a cooling box (52), a temperature-controlled circulating pump (53), and a temperature-controlled circulating pipe (54). The air-cooled fan (51) is fastened to the compressor body (12). The air-cooled fan (51) is used to cool the cooling box (52). The cooling box (52) is connected to the temperature-controlled circulating pipe (54). The temperature-controlled circulating pipe (54) is connected to the temperature-controlled circulating pump (53). The temperature-controlled circulating pump (53) is connected to the cooling box (52). The temperature-controlled circulating pipe (54) is spirally wound around the liquid oil circulating pipe (46) and the liquid oil storage tank (48).

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