82 results about "High pressure chamber" patented technology

A reusable upper stage rocket or other atmospheric re-entry vehicle includes a nose, a base opposite the nose, and a propulsion engine toward the base. The propulsion engine includes a high pressure chamber and a nozzle configured to exhaust gas generated by the high pressure chamber. The nozzle includes an initial nozzle portion, a secondary nozzle portion downstream of the initial nozzle portion, and a nozzle exit at a downstream end of the secondary nozzle portion. The secondary nozzle portion includes an inner expansion surface, an outer expansion surface outboard of the inner expansion surface, and an expansion cavity defined between the inner expansion surface and the outer expansion surface.

The invention discloses a rapid deployment method and system for a mobile high-voltage chamber, and relates to the technical field of high-voltage chamber deployment. According to the method, preliminary exploration is completed by establishing an exploration machine group composed of a plurality of unmanned aerial vehicles, and a deployment area is formed in combination with ground personnel checking and site optimization; after being preassembled in a factory, the mobile high-pressure chamber is transported by a heavy truck with a hydraulic suspension system and is matched with laser positioning and AR alignment to realize high-precision hoisting; electrical equipment adopts an automatic docking mechanism composed of a prefabricated cable primary and secondary connector and an electric push rod to complete docking, and is equipped with an annular air bag to deal with rain and snow weather. The problems of low investigation efficiency, poor positioning precision, insufficient electrical docking reliability and poor protection in severe weather in traditional deployment are solved, the mobile high-voltage chamber deployment efficiency and stability are remarkably improved, and the mobile high-voltage chamber deployment method is suitable for electric power emergency guarantee, electric power construction in remote areas and temporary power utilization scenes.

The invention provides an ultrahigh pressure sterilization device for litchi juice production, and belongs to the technical field of food non-thermal processing. The device comprises a high-strength ultrahigh-pressure cavity, a pressurizing pump, an inert gas protection tank, a temperature regulation and control module, a tank body sealing cover and an intelligent control cabinet. During working, nitrogen or argon is filled before pressurization to replace oxygen in the cavity, so that the oxygen concentration is less than or equal to 1%; and then maintaining the pressure for 2-8 minutes under the conditions that the pressure is 300-600 MPa and the temperature is 5-25 DEG C, so that efficient sterilization is realized, browning is effectively inhibited, and vitamin C and natural flavor are reserved. The device adopts the mesh basket with micropore distribution to ensure uniform pressure transmission, integrates automatic discharging and CIP cleaning functions, and is suitable for continuous production of pulp-containing litchi pulp. The total bacterial count of the treated litchi juice is smaller than or equal to 10 CFU / mL, the retention rate of vitamin C is larger than or equal to 90%, the color difference change is small, and the shelf life at 4 DEG C reaches 30 days or above and is remarkably superior to that of a traditional heat sterilization process.

The invention discloses a fire early warning method and system for a high-voltage chamber, a switching station and a power distribution room, and belongs to the technical field of fire early warning, and the fire early warning method for the high-voltage chamber, the switching station and the power distribution room comprises the steps: obtaining monitoring quantities in the high-voltage chamber, the switching station and the power distribution room, and constructing a monitoring quantity operation safety domain; comprehensively judging an abnormal monitoring quantity separated from the operation safety domain based on an out-of-limit criterion and a two-dimensional discrete wavelet transform modulus maximum; predicting the development and change trend of the abnormal monitoring quantity based on the bidirectional long-short-term memory network, and obtaining a predicted value within a set time after the current measured value of the abnormal monitoring quantity; and if the predicted value meets any rule in the early warning rule base, triggering a three-level early warning system associated with the fire occurrence urgency degree, and sending out an early warning signal and / or starting a linkage measure. According to the invention, the reliability, rapidity and sensitivity of fire early warning are improved by effectively identifying, processing and utilizing the multi-dimensional abnormal information appearing before the fire occurs and reasonably using the artificial intelligence algorithm at a proper time.

The plunger pump comprises a pump body, a high-pressure cavity, a low-pressure cavity and a pressure regulating valve, the high-pressure cavity, the low-pressure cavity and the pressure regulating valve are arranged in the pump body, a mounting part is arranged on one side of the pump body, a mounting groove is formed in the mounting part, a first flow channel and a second flow channel are formed in the side wall of the mounting groove, the first flow channel is communicated with the low-pressure cavity, and the second flow channel is communicated with the low-pressure cavity. The runner II is communicated with the high-pressure cavity; a choke plug is inserted in the mounting groove, and a first circulation groove and a second circulation groove are formed in the choke plug. A steel ball is arranged in the first circulation groove, a supporting ring is arranged in the mounting groove, a placing ring groove is formed in the position, corresponding to an inlet of the first flow channel, of the bottom of the mounting groove, a spring is placed in the placing ring groove, the spring penetrates through an inner hole of the supporting ring and extends into the first circulation groove, and the top end of the spring abuts against the steel ball. The low-load soft start circuit can realize low-load soft start.

An orthoplanar spring for a hydraulic tensioner which has a flat, closed position, in which a flat center portion of the orthoplanar spring seals the inlet hole between the oil supply and the high pressure chamber of the tensioner and an open deformed position in which the flat center portion of the orthoplanar spring moves a distance to unseal the inlet hole such that fluid flows from the inlet supply through the openings in the orthoplanar spring and around the flat center portion to the high pressure chamber.

The present application relates to the technical field of cooling liquid treatment, in particular to a cooling liquid heat dissipation device for a machine tool cooling system, comprising a low-pressure chamber and a high-pressure chamber, a heat exchange unit is arranged in the middle of the low-pressure chamber, the inside of the low-pressure chamber is provided with a steam area and an atomization area on the upper and lower sides respectively, an atomizer capable of atomizing part of the cooling liquid stored in the atomization area is arranged in the atomization area, and a liquid supply pipe is arranged at the bottom of the low-pressure chamber; by atomizing and low-pressure evaporating part of the cooling liquid, the cooling liquid can absorb heat and exchange heat with the cooling liquid in the heat exchange unit, so that the cooling and heat dissipation treatment of the cooling liquid is realized; this method does not need to rely on other media, is convenient to operate, saves cost, and the atomization treatment can improve the evaporation effect and evaporation efficiency.

1. The name of the design product: electronic device for high pressure oxygen cabin password operation graphical user interface. 2. The use of the design product: an electronic device. 3. The design points of the design product: the graphical user interface of the high pressure oxygen therapy device. 4. The picture or photo that best shows the design points: design 1 interface change state figure 3. 5. Design 1 is designated as the basic design. 6. The use of the graphical user interface: the graphical user interface for the high pressure oxygen therapy device, which guides the user to enter the interface and realize the function operation related to the work of the high pressure oxygen therapy device. 7. The human-computer interaction mode of the graphical user interface: design 1 main view is the initial interface; in the state of starting, click anywhere on the interface to jump to design 1 interface change state figure 1; click the "eye" pattern on the right of "please enter the password" on design 1 interface change state figure 1, and input the correct password, then display design 1 interface change state figure 2 to close the password interface; click the "complete" button in design 1 interface change state figure 2 to jump to design 1 interface change state figure 3; click "internal atmosphere lamp" or "external atmosphere lamp" in design 1 interface change state figure 3, then display design 1 interface change state figure 4; click the "kangyao start" button in design 1 interface change state figure 4, if the device fails, then display design 1 interface change state figure 5. Design 2 main view is the initial interface; in the state of starting, click anywhere on the interface to jump to design 2 interface change state figure 1; click the "eye" pattern on the right of "please enter the password" on design 2 interface change state figure 1, and input the correct password, then display design 2 interface change state figure 2 to close the password interface; click the "complete" button in design 2 interface change state figure 2 to jump to design 2 interface change state figure 3; click the "kangyao start" button in design 2 interface change state figure 3, if the device fails, then display design 2 change state figure 4.

A scroll compressor is provided. The scroll compressor includes a housing, a fixed scroll member and an orbiting scroll member housed in the housing, the orbiting scroll member configured to be engaged with the fixed scroll member and orbitable with respect to the fixed scroll member to compress a working fluid, a partition configured to partition a space in the housing into a high-pressure chamber and a low-pressure chamber, and a positioning member provided between the partition and the fixed scroll member and configured to position one of the partition and the fixed scroll member with respect to the other of the partition and the fixed scroll member upon assembly. According to the scroll compressor of the present disclosure, by positioning the positioning member directly between the partition and the fixed scroll member, a tolerance chain between a discharge assembly and the fixed scroll member is shortened, and a tolerance between the discharge assembly and the fixed scroll member can be reduced.

The hydraulic lash adjuster comprises a shell assembly and a plunger, the shell assembly is provided with an exhaust part, an oil supply chamber is arranged in the plunger, and the plunger is movably connected to the interior of the shell assembly and matched with the shell assembly to form a high-pressure chamber and a leakage gap communicated with the high-pressure chamber. The leakage gap and the exhaust part are independently arranged, the exhaust part can block oil in the high-pressure chamber and exhaust gas in the oil out of the shell assembly towards the side deviating from the high-pressure chamber, and meanwhile the invention further discloses an engine applying the hydraulic gap adjuster and a vehicle applying the engine. The technical problem that the working reliability is insufficient due to the fact that gas separated out of oil in a high-pressure chamber in an existing hydraulic lash adjuster is accumulated and cannot be discharged in time is solved.

A compressor unit includes a compressor body including a compression mechanism, and an accumulator connected to the compressor body. The compression mechanism includes a cylinder, a piston to rotate eccentrically in the cylinder, and a blade partitioning an interior of a compression chamber of the cylinder into low and high pressure chambers. A frequency one time an operation frequency n of the compressor body and a frequency three times the operation frequency n of the compressor body are a 1n frequency and a 3n frequency, respectively. A phase difference θ between a phase of a transfer function of the 1n frequency of the accumulator and a phase of a transfer function of the 3n frequency of the accumulator is −20°≥θ≥−60° with respect to a peak of the 1n frequency where the phase lag is positive, at a maximum number of revolutions of the compressor body.

The utility model relates to a relay structure. A high voltage relay structure of cooling and pressure adjustment, including the bottom plate, install the cover on the bottom plate, install the static contact piece on the cover, install the push rod structure and the movable contact piece in the cover, push rod structure drives movable contact piece axial movement, the cover forms a closed cavity, install one inside cover on the bottom plate, the inside cover separates the closed cavity into the outer cavity and the inner cavity, the position of movable contact piece and static contact piece meet is located in the outer cavity, the closed cavity of inside cover formation is the inner cavity, install at least one constant pressure valve on the inside cover. The utility model provides a high voltage relay structure of cooling and pressure adjustment of simple structure can carry out cooling and pressure reduction to high pressure chamber, prolongs the service life, reduces the failure rate, solves the technical problem that the high voltage relay of prior art can only rely on product self heat dissipation, and heat dissipation is slow, influences product service life and stability.

This invention relates to electric and hydraulic machines. An electric and hydraulic machine includes: a housing defining a motor chamber and a pump chamber; a motor including a rotor and a stator positioned within the motor chamber; and a pump including a pumping element positioned within the pump chamber, the pumping element being movable by the motor to discharge fluid from the pump chamber. The pump chamber includes a low-pressure chamber and a high-pressure chamber, a unit inlet defined by the housing and communicating with the low-pressure chamber, and a unit outlet defined by the housing and communicating with the high-pressure chamber. The pump chamber is positioned radially inward of the motor chamber such that the pump is nested within the motor. A radial cooling channel extends radially from the low-pressure chamber to the motor chamber, such that fluid in the pump chamber communicates with the rotor and the stator to cool the motor.

The utility model discloses a novel gas turbine waste heat boiler header which comprises a header body, the header body is divided into a header left barrel and a header right barrel through a middle partition plate, a high-pressure cavity and a medium-pressure cavity which are independent are formed, and the high-pressure cavity and the medium-pressure cavity are connected with heating surface tube bundles of a high-pressure economizer and a medium-pressure economizer respectively. The left header barrel and the right header barrel are located on the same axis. The header structure is shared by the high-pressure economizer and the medium-pressure economizer, double-system splicing is achieved by segmenting the header and using the middle partition plate, traditional modular limitation is broken through, the transverse row number of the heating surface of the medium-pressure economizer can be dynamically adjusted, and therefore the approaching point temperature is accurately controlled, and the waste heat utilization efficiency is improved.

This utility model discloses a negative pressure liquid cooling system, belonging to the field of liquid cooling heat dissipation technology for electronic devices. It includes a low negative pressure chamber, a high pressure chamber, and a replenishment / drainage module. The low negative pressure chamber is connected to the high pressure chamber via a pump-driven module, which transports coolant from the low negative pressure chamber to the high pressure chamber. The replenishment / drainage module is connected to both the low negative pressure chamber and the high pressure chamber. A heat exchange module and a filter module are also provided between the pump-driven module and the high pressure chamber. The inlet end of the heat exchange module is connected to the pump-driven module, and the outlet end of the heat exchange module is connected to the inlet end of the filter module. The outlet end of the filter module is connected to the inlet end of the high pressure chamber. A purification module is located between the heat exchange module and the high pressure chamber and is installed in parallel with the filter module. This utility model uses a pump to achieve fluid flow from the low negative pressure chamber to the high pressure chamber, realizing a stable flow rate or pressure difference output from the high pressure chamber to the low negative pressure chamber, forming a closed-loop circulation system.

The utility model discloses a compact box-type transformer substation, and the transformer substation comprises a box body which is internally provided with an installation space; the oil tank is arranged in the middle in the mounting space, a high-voltage chamber is arranged on the high-voltage side of the oil tank, a low-voltage chamber and an operation chamber are arranged on the low-voltage side of the oil tank, a circuit breaker and a mutual inductor are arranged in the high-voltage chamber in the longitudinal direction, and the low-voltage chamber and the operation chamber are arranged in parallel in the transverse direction. The high-voltage chamber longitudinally extends along the high-voltage side of the oil tank, so that high-voltage equipment such as a circuit breaker and a mutual inductor forms a longitudinal equipment belt perpendicular to the ground in a three-dimensional space, the axial arrangement not only compresses the transverse occupied space of the high-voltage equipment, but also deconstructs a high-voltage cabinet body in traditional plane arrangement into a three-dimensional integrated module through longitudinal stacked installation. A high-voltage conductor connection path is shortened.

The utility model relates to the field of air suspension, concretely relates to an air suspension gas path system, contains air compression unit, air spring unit, low pressure control unit, high pressure control unit and the gas storage unit that constitutes by double -cavity gas holder, double -cavity gas holder contains low pressure chamber and high pressure chamber, realizes high low pressure gas zoning storage, and when high pressure chamber fails, low pressure chamber can work as spare chamber and continue to work, and through specific venting pipeline connection and control valve cooperation between each unit, can realize multiple gas path control, and the air suspension gas path system pressure is accurately regulated, the utility model discloses through the redundancy design of double -cavity gas holder and promotes the reliability of whole system, utilizes closed -loop gas circulation and further reduces energy consumption, and with the pressure monitoring of multi -valve combination realizes accurate control, forms whole chain safety mechanism, solves traditional system gas storage single, pressure control inflexible, low reliability etc.

This application discloses a box-type transformer device for preventing condensation from waste heat, relating to the field of box-type transformers. It includes a box housing containing a transformer chamber, a low-pressure chamber, and a high-pressure chamber. The transformer chamber houses a transformer and a heat collection hood, which is located above the transformer. The hood's opening faces vertically, and its radial dimension gradually decreases from bottom to top. A duct is connected to the top of the duct, with one end of the duct away from the duct located at the bottom of the low-pressure chamber and / or the high-pressure chamber. Exhaust vents are provided at the top of the low-pressure chamber and the high-pressure chamber, connecting them to the external space. This application utilizes the heat generated during transformer operation to form a hot airflow, which dehumidifies the air in the high-pressure and low-pressure chambers. It has the advantages of low cost, simple structure, and low energy consumption.

The invention relates to an oil-free spiral compressor (2.1) for generating compressed air, comprising at least one stator spiral (6) attached to a housing-fixed base plate (4) and a displacement spiral (10) arranged on a movable base plate (8), wherein the stator spiral (6) and the displacement spiral (10) axially interlock pressure chambers (12), wherein the housing-fixed base plate (4) has at least one cooling channel (22, 22') through which a cooling fluid flows, wherein at least one outlet opening (14) for the flow of compressed air is formed in the housing-fixed base plate (4), and wherein the outlet opening (14) of the housing-fixed base plate (4) is fluidically connected to an adjacent high-pressure chamber (30, 86).In this spiral compressor, according to the invention, a side wall (38) and / or a bottom wall (34) of a cover housing (32) surrounding the high-pressure chamber (30) or a side wall (84) of a high-pressure chamber housing (83) connected to the housing-fixed base plate (4) is designed as a heat exchanger (56, 88) for the generated compressed air, which can be cooled by means of a cooling liquid.

The pressure reducing device comprises a valve seat, a valve rod, an air inlet nozzle, a floating blocking mechanism and an adjusting knob, a high-pressure cavity and a low-pressure cavity are formed in the valve seat, the air inlet nozzle is installed in the valve seat and separates the high-pressure cavity from the low-pressure cavity, an air inlet channel is formed in the air inlet nozzle, an air hole is formed in the tail end of the air inlet channel, and the valve rod is arranged on the valve seat in a sleeved mode. The floating blocking mechanism is installed at the first end of the valve rod and matched with the air outlet end of the air hole, the floating blocking mechanism can be in elastic contact with the air inlet nozzle all the time, and the adjusting knob is installed at the second end of the valve rod and can drive the valve rod to rotate. According to the pressure reducing device, the floating blocking mechanism is adopted, the floating blocking mechanism has certain pressing force, high-pressure gas in the high-pressure cavity can enter the low-pressure cavity only after overcoming the pressing force, and therefore it can be guaranteed that the gas entering the low-pressure cavity has a stable air pressure value; therefore, the stability of the extraction pressure required by subsequent coffee making is ensured.

The Italian coffee machine comprises a main machine, a high-pressure air source and an air path system, the main machine comprises a water bin and a coffee extraction bin which are communicated through a one-way valve mechanism, the input end of the air path system is communicated with the output end of the high-pressure air source, and the output end of the air path system is communicated to the water bin. The gas path system can depressurize the high-pressure gas and convey the depressurized low-pressure gas to the top of the water sump; the gas path system comprises a high-pressure pipeline, a gas pressure reduction mechanism and a low-pressure pipeline, the input end of the high-pressure pipeline is connected with the output end of the high-pressure gas source, the output end is connected with a high-pressure cavity of the gas pressure reduction mechanism, the low-pressure cavity of the gas pressure reduction mechanism is connected with the input end of the low-pressure pipeline, and the output end of the low-pressure pipeline is communicated to the water sump. The Italian coffee machine integrates an automatic puncturing structure, a pressure reduction structure, a balance valve structure and a pressure relief structure, and is high in functionality, simple and attractive in overall appearance, small in size and small in occupied space.

The utility model discloses a kind of energy storage converter step-up integrated machine, it includes transformer room, high-pressure chamber, low-pressure chamber, converter, high-pressure chamber and low-pressure chamber setting in base left side, front end is high-pressure chamber, transformer room is set in base middle part, transformer room, low-pressure chamber, high-pressure chamber are set in a closed box, converter is two settings in base right side, circuit breaker cabinet is provided in the right side of transformer room, alternating current copper bar shield is provided in the middle of converter, converter is separately externally equipped, change the design of traditional integrated machine structure, save the manufacturing cost, transportation cost of traditional integrated machine, copper bar protection is used to copper bar of transformer low-voltage alternating current side and converter alternating current side connection, copper bar with converter compartment placement of larger heat dissipation, effectively reduce temperature rise problem, improve the comprehensive efficiency of converter.

Externally compressed air variable cylinder rotary engine, gas engine Figure 1 Electromagnetic hook (1) release lever (2) so that cylinder base plate (9) can rotate around shaft (8) between the concave and convex surfaces of rotor (15) and the top plate of high pressure chamber (6). Rotor point (10) to bottom end (9) is bounced up. Rotor point (11) to bottom end (9) enters high pressure chamber to exhaust flue gas from exhaust duct (7) to cylinder (24). Lever moves fuel injector (3) to impact (9) to dotted line (7). (2) The nozzle is pressed to increase the pressure of (6). When the rotor point (12) passes the bottom of (9), (2) the spark plug (5) is turned. When (9) slides along the rotor point (12) to the rotor point (13), (6) the gas rushes into (24). (24) is composed of the stator (14) U-shaped groove, (9), and the rotor concave and convex curved surface. The exhaust port (19), the power output shaft (16), and the stator connecting rod (23) are fixed to the bearing (22) and (16) slidingly connected.

The utility model relates to a ventilation device convenient for angle adjustment for a high-voltage chamber, and aims to solve the technical problem that the ventilation quantity is inconvenient to automatically control according to the room temperature in the high-voltage chamber at present. The ventilation device comprises a fixed seat, a ventilation slot is formed in one side of the fixed seat in a penetrating manner, and a driving rod is horizontally and rotatably connected in the ventilation slot; when the environment temperature in the high-pressure chamber rises, the temperature of carbon dioxide in the carbon dioxide storage tank can be increased through the heat conducting plate, so that the pressure of gas in the carbon dioxide storage tank is increased, the pressurized carbon dioxide enters the adjusting cylinder through the connecting pipe and can push the piston to be close to the fixing base, and therefore the rack is pushed to move; and through meshing of the rack and the gear, in the moving process of the rack, the gear and the driving rod can be driven to rotate, the control panel is further driven to rotate in the ventilation groove, and therefore the opening amount of the ventilation groove is controlled, and the ventilation quantity of the ventilation groove can be further automatically increased.

The utility model discloses a horizontal scroll compressor, air conditioner and vehicle for vehicle, horizontal scroll compressor includes: casing, the casing is provided with support, is equipped with high pressure chamber, low pressure chamber and oil storage cavity in the casing, and oil storage cavity communicates with high pressure chamber, drive assembly, drive assembly includes the crankshaft of wearing in support, compression assembly, compression assembly includes dynamic scroll and static scroll, and dynamic scroll is defined with back pressure chamber with support, and the suction port of compression chamber of compression assembly communicates with low pressure chamber, and the exhaust port of compression chamber communicates with high pressure chamber, a plurality of throttling element, and oil storage cavity and back pressure chamber communicate through throttling element, and back pressure chamber and low pressure chamber communicate through throttling element, and at least one throttling element constructs to become capillary structure. The horizontal scroll compressor that the utility model proposes, and oil storage cavity can communicate with back pressure chamber through capillary, and back pressure chamber can obtain stable back pressure value, so that the performance of horizontal scroll compressor is easier to meet the design expectation.

The invention relates to a scroll machine for transporting a fluid, in particular a refrigerant of a vehicle air-conditioning system, comprising: a stationary first scroll and an orbiting second scroll, which enclose a transport chamber; a high pressure chamber disposed on a back side of the first substrate; a valve opening formed in the first base plate of the first scroll, through which the conveyed fluid leaks into the high pressure chamber during as-specified operation; the limiting stopper is used for the valve plate. The envelope of the contact surface of the stopper, which is in contact with the valve plate in the open state, approximates the outer contour of the region of the valve plate, which is in contact with the contact surface. A recess is formed in the contact surface in order to provide a contact surface of the valve plate on the stopper, which contact surface is reduced compared to the area surrounded by the envelope, and / or wherein a recess is formed on the rear surface of the first substrate, which recess is partially covered by the valve plate in the closed state of the valve plate.

This application relates to an integrated intelligent temperature control and heat dissipation system for a prefabricated box-type substation, belonging to the field of power equipment heat dissipation technology. The system includes a base 1 and a housing 2 mounted on the base 1. The housing 2 is divided into a low-pressure chamber, a transformer chamber, and a high-pressure chamber. The transformer chamber is equipped with an integrated cooling unit 4 connected to a closed-loop temperature control system. The system also includes an intelligent control unit 9. The closed-loop temperature control system includes a cooling plate 5, a heat exchange unit 6, a circulating pump 7, an expansion tank 14, a water replenishment device 15, and an optional plate heat exchanger 8. The intelligent control unit 9 is equipped with a load feedforward-temperature feedback dual-mode predictive controller. This controller embeds a lightweight LSTM model. Input variables include the transformer primary current harmonic distortion rate (THD), the active power change rate (dP / dt), the winding temperature rise history curve measured by distributed optical fiber, and the cooling water inlet and outlet temperature difference (ΔT). The output is the target flow increment (ΔQ) of each cooling chamber within the next 60 seconds and the pre-speed command of the heat exchange fan. This application can solve the problem of control response lag caused by the thermal inertia of the cooling medium and improve the thermal response capability of the transformer under sudden short-term overload conditions.

The utility model discloses a high-pressure chamber for tearing gold and removing photoresist in the field of semiconductor processing equipment, and aims to solve the problems of mist overflow, air duct blockage, low metal recovery rate and the like in the existing gold tearing and photoresist removing process. The high-pressure chamber is based on a bottom plate and is provided with a fixed splash-proof chamber, the outer side of the splash-proof chamber is provided with a plurality of exhaust outlets communicated with the inside, the splash-proof chamber is communicated with the bottom of the bottom plate through exhaust pipes, and a water outlet and a filter screen are arranged in the chamber. The splash-proof chamber is circumferentially connected with a liftable lifting splash-proof ring, and the inner wall of the splash-proof chamber is provided with an inner splash-proof ring for shielding the exhaust outlet to form an interlayer. A cleaning disc used for positioning and placing silicon wafers is arranged in the cavity and is controlled by a driving assembly at the bottom of the bottom plate to rotate. In the process, fog enters the interlayer from the lower end of the inner splash-proof ring and then leads to the exhaust outlet, the exhaust flow field is optimized, fog accumulation is avoided, the exhaust efficiency is improved, meanwhile, metal chippings are intercepted, the air duct blocking risk is reduced, and the metal recovery rate is effectively increased.

The utility model relates to the technical field of compressors, and discloses an energy adjusting device for a screw compressor, which comprises a shell, a cavity, an air inlet and an air outlet are arranged in the shell, the air inlet and the air outlet are communicated with the cavity, two meshed screws are arranged in the cavity, a partition plate is arranged on the inner wall of the shell, one side wall of the partition plate is attached to the screws, and the other side wall of the partition plate is attached to the air outlet. A cavity is formed in the shell and divided into a high-pressure cavity and a low-pressure cavity by a partition plate, a piston cavity is formed in the side, close to the partition plate, of the shell, a telescopic groove is further formed in the piston cavity in a communicating mode, a piston is slidably arranged in the piston cavity, the neck of the piston slides in the telescopic groove in an attached mode, and the high-pressure cavity and the low-pressure cavity are communicated through the piston cavity. The high-pressure cavity and the low-pressure cavity are separated, and when the piston is away from the partition plate, the high-pressure cavity communicates with the low-pressure cavity, so that pressure relief between the high-pressure cavity and the low-pressure cavity is conducted, and the problem that existing equipment cannot guarantee that the output capacity of the compressor is matched with the requirement is solved.

The utility model relates to a piston type pressure reducing valve which comprises a valve body, the valve body comprises a valve seat and a valve cover, the valve seat is provided with a first installation groove, the valve cover is provided with a second installation groove, the first installation groove and the second installation groove jointly define an installation cavity, and a piston is movably installed in the installation cavity. A piston is arranged in the valve seat, the piston divides the mounting cavity into a medium-pressure chamber and a pressure regulating chamber, a pressure regulating spring is arranged in the pressure regulating chamber, a high-pressure chamber is arranged in the valve seat, a connecting hole is formed between the pressure regulating chamber and the high-pressure chamber, a hollow valve pipe is inserted in the connecting hole in a sliding mode, the valve pipe is arranged in the piston in a penetrating mode, and the piston is arranged in the valve seat. The medium-pressure chamber and the high-pressure chamber are communicated through the valve pipe, a plurality of through holes are formed in the valve body, and the pressure regulating chamber is communicated with the outside of the valve body through the through holes. The pressure reducing valve can adjust the air supply pressure according to the change of environment water pressure, and the use experience and safety of a user are guaranteed.