30results about How to "Meet gas supply needs" patented technology

The present invention provides a multi-stage high-efficiency engine air filter, comprising a first filter body, a second filter body, a third filter body, a plurality of first filter elements, a second filter element, a third filter element, and a first filter body. The openings at both ends are respectively screwed with a first end cover and a second end cover. The second filter body is a cylinder structure with both ends open; the third filter body is a cylinder structure with one end open and one end closed. The body is arranged in the first filter body and the cover is arranged outside the second filter body; a plurality of first filter elements are arranged in parallel in the first filter body, and the second filter body is provided with a rotating shaft arranged coaxially with it, and the plurality of first filter elements pass through The rotating shaft is installed in the second filter body and can rotate with the rotation of the rotating shaft; the second filter element is arranged in the third filter body and is sleeved on the outside of the second filter body; the third filter element is arranged in the first filter body and sleeved in the third filter body outside of the filter. The present invention can completely filter out impurities in the air by performing multi-channel filtration on the air, thereby improving the filtration efficiency of the air and the cleanliness of the filtration.

The invention relates to a method used to stabilize CNG high-flow air feed. A device comprises a collecting pipeline used to collect natural gas released by each tank car. The collecting pipeline comprises a main pipe and branch pipes arranged on the main pipe. The air inflow end of each branch pipe is respectively connected with the air outlet of the tank car. The air outlet end of the main pipe is provided with a main pipe pressure measuring device and a flow measuring device. Each branch pipe is respectively provided with an automatic control valve. The pipe body of each branch pipe between the automatic control valve and the tank car is respectively provided with a branch pipe pressure measuring device. A control device receives signals acquired by the branch pipe pressure measuring devices, the main pipe pressure measuring devices, and the flow measuring device, and analyzes and processes the signals and regulates on-off state of each automatic control valve according to analysis results. In the above technical scheme, the control device regulates on-off state of each automatic control valve, so that the output end of the main pipe can stably provide high-flow air feed, and high-flow air feed requirements of users are satisfied.

The invention discloses an intelligent gas supply control system for a liquefied natural gas (LNG) vehicle. The system comprises an intelligent control unit, a hydraulic oil tank, a hydraulic oil pump, an LNG infusion pump, an LNG bottle, a carburetor, a valve set, a hydraulic pressure sensor, a carburetor back fuel gas temperature sensor, a buffer tank, a buffer tank fuel gas pressure sensor and a buffer tank fuel gas temperature sensor. The intelligent control unit collects the state information of an engine, an LNG bottle liquid level meter as well as all the sensors mounted in the system; the pressure and flow direction of a hydraulic system are controlled by controlling movement of the valve set to drive the LNG infusion pump to pump out LNG liquid from the LNG bottle; and according to the state requirement of the whole vehicle, the working frequency of the LNG infusion pump is controlled, the target pressure of the buffer tank is adjusted or maintained to meet the requirement of the whole vehicle for gas supply, and additionally, the intelligent control unit has the function of fault diagnosis and treatment, so that the effect that the intelligent gas supply control system achieves the safe, efficient, intelligent and energy-saving gas supply purpose is guaranteed.

The invention relates to the field of wind tunnel tests, and discloses an improved wind tunnel air inlet test model supporting system which comprises a ventilation arm and an attack angle pre-deviation rod, and the ventilation arm is connected with a roll angle rotating shaft mechanism on a wind tunnel attack angle mechanism; the ventilation arm is sequentially provided with a gas passage, a wiring passage and a ventilation cavity from inside to outside; the gas passage and the ventilation cavity are coaxially arranged; the ventilation arm is connected with the attack angle pre-deviation rod; a gas passage extension section communicated with the gas passage and a routing passage extension section communicated with the routing passage are arranged in the angle-of-attack pre-deviation rod; the ventilation cavity is communicated with the ventilation pipeline, and the gas passage extension section is communicated with the gas outlet pipeline; and a wiring hole is formed in the wall of the attack angle pre-deviation rod. The problems that in the prior art, a traditional model supporting system cannot achieve integrated arrangement of ventilation and wiring, and operation is inconvenient due to the fact that instruments and pipelines are many in the wind tunnel testing process are solved.

The embodiment of the invention provides semiconductor process equipment and an integrated gas supply system thereof. The integrated gas supply system is arranged between a gas source and a process chamber of the semiconductor process equipment, is used for conveying gas into the process chamber, and comprises a plurality of gas path conveying modules which are detachably connected with one another; each gas path conveying module comprises a first base block and first control parts, and a first gas path is formed in the first base block; and at least one first control part is arranged on the first base block and connected with the first gas path. According to the integrated gas supply system, the gas path conveying modules can be randomly combined to adapt to different types of semiconductor process equipment, so that the overall universality is greatly improved, and the problem of the high customization degree is avoided. In addition, when a certain gas path conveying module is contaminated, only the gas path conveying module needs to be replaced independently, and therefore the application and maintenance cost is greatly reduced.

The invention provides an air filter for an automobile engine. The air filter comprises a filter body, a first filter element, a second filter element, a first end cover and a second end cover. A round partition plate is arranged in the filter body. The interior of the filter body is partitioned into a first cavity and a second cavity through the partition plate. The first filter element is arranged in the first cavity. The first cavity is partitioned into a first filter chamber and a second filter chamber through the first filter element. An air guiding pipe is arranged in the first filter chamber. The air guiding pipe comprises multiple U-shaped pipe bodies which are arranged in an equally-spaced manner. Any two adjacent U-shaped pipe bodies are connected through a semicircular bent joint. The U-shaped pipe bodies and the semicircular bent joints are each provided with ventilation holes. The first filter element comprises two cylindrical segments and a corrugated segment connecting the two cylindrical segments. The second filter element is arranged in the second cavity. The second cavity is partitioned into a third filter chamber and a fourth filter chamber through the second filter element. Air guiding holes enabling the second filter chamber to communicate with the fourth filter chamber are formed in the partition plate. According to the air filter, air is filtered through multiple channels; air filtering efficiency and filtering cleanliness are improved; and the air supplying requirement of the engine is met.

The invention provides a dual-fuel engine LNG supply system. The dual-fuel engine LNG supply system comprises an LNG vaporizer, an NG heater, a circulating pump, a first heater, a second heater, a first three-way adjusting valve, a second three-way adjusting valve, an LNG inlet pipeline, an NG outlet pipeline, a hot water inlet pipeline, a hot water outlet pipeline, a steam inlet pipeline and a steam outlet pipeline. The LNG inlet pipeline communicates with an LNG inlet of the LNG vaporizer. An NG outlet of the LNG vaporizer communicates with an NG inlet of the NG heater. An NG outlet of the NG heater communicates with the NG outlet pipeline. According to the dual-fuel engine LNG supply system, the compatibility of the gas supply system is improved, LNG vaporization heating can be conducted through multiple heat sources, meanwhile, the self-adjusting capacity of the gas supply system is improved, and accordingly the situation that the temperature and flow of the heat sources or the host load is changed is handled. The invention further provides an LNG ship.

The invention discloses a cleaning system which is used for cleaning a material gate (3) of an asphalt mixing plant, and comprises a lytic agent branch for providing an asphalt lytic agent and a spray nozzle (2) which is opposite to the material gate (3), as well as a gas supply branch for providing compressed gas, and an outlet of the gas supply branch and the outlet of the lytic agent branch are connected with an inlet of the spray nozzle (2). The cleaning system has high cleaning efficiency and convenient operation and can reduce the asphalt cleaning cost. The invention further provides the asphalt mixing plant comprising the cleaning system, and the utilization of the asphalt mixing plant can improve the quality of asphalt mixture, lead the production to be safer and realize higher reliability.

The invention discloses a chassis refrigerating system of an LNG commercial automobile vehicle-mounted refrigerator and a control method, the chassis refrigerating system comprises the vehicle-mounted refrigerator and an LNG gas supply module, and the LNG gas supply module is connected with an engine gas supply module and the vehicle-mounted refrigerator through two pipelines; the vehicle-mounted refrigerator comprises an LNG inlet connected with the LNG supply module through a pipeline and an LNG outlet connected with the engine supply module through a pipeline. A control module used for controlling the LNG gas supply module to supply gas into the vehicle-mounted refrigerator is connected between the LNG gas supply module and the vehicle-mounted refrigerator. The chassis refrigerating system of the vehicle-mounted refrigerator of the LNG commercial vehicle is designed into four modules including the vehicle-mounted refrigerator, the LNG gas supply module, the engine gas supply module and the control module, and the refrigerating system is simple in structure, convenient to assemble and high in function integration degree.

The invention provides an air compression device and an air compression system and relates to the technical field of air compression. The air compression device comprises a base, a plurality of scrollair compressor hosts, an oil-gas separation barrel, an oil filter, a cooling device and a control device. Through arrangement of the multiple scroll air compressor hosts, the air displacement of theair compression device can be improved so as to meet the requirement for large-displacement air supply.

The invention discloses a low-pressure gas engine gas supply valve module. The low-pressure gas engine gas supply valve module comprises a manual gas stop valve, a gas filter, a gas electromagnetic stop valve, a first pressure detection device, a flame arrester, a pressure regulating valve, a gas inlet connecting pipe and a second pressure detection device, wherein an inlet of the manual gas stopvalve serves as a gas inlet, the gas filter is connected with an outlet of the manual gas stop valve, one end of the gas electromagnetic stop valve is connected with the gas filter through a connecting pipe, the first pressure detection device is arranged on the connecting pipe, the front end of the fire arrester is connected with the other end of the gas electromagnetic stop valve, the front endof the pressure regulating valve is arranged to be connected with the rear end of the flame arrester, the gas inlet connecting pipe is connected with the rear end of the pressure regulating valve, andthe second pressure detection device is arranged on the gas inlet connecting pipe. The low-pressure gas engine gas supply valve module is complete in function, reasonable in price, wide in application range and capable of completely meeting the gas supply requirements of a gas engine.