173results about How to "No pressure loss" patented technology

The invention discloses a wireless management system for oil and gas transportation metering and leakage alarming, which includes an ultrasonic transducer, an ultrasonic transmitting and receiving module, a singlechip, a memorizer, a LCD, a keyboard control module, a sound and light alarming module, a communication module and a GPS + GPRS system based on microcontroller. The ultrasonic transducer is used to convert electric energy into ultrasonic energy, and transmit the ultrasonic energy into a detected fluid; an ultrasonic signal received by a receiver, measured instant flux and accumulated flux value after receiving the data processing of a microcontroller are converted into digital signals representing flux; one signal is supplied to the LCD to display data and the other signal transmits data through the command center of the GPS + GPRS system. If leakage occurs, the singlechip of the detecting unit thereof transmits an alarming signal to the command center through data comparison, and the command center confirms the accident position through a GPS positioning system immediately, and the staff nearby are informed to process through the SMS platform and voice system of the GPRS system.

The invention discloses a method and a device for measuring accumulated liquid of a natural gas pipeline. The method comprises the following steps of: vertically transmitting high-frequency ultrasonic wave into the pipeline by an ultrasonic probe coupled to the outer wall of the measured pipeline, wherein the energy of reflection echo has great difference due to different properties of gas and liquid media; judging that the pipe inner wall is contacted with gas or liquid at the position of the probe according to the characteristic of echo received by the ultrasonic probe and reflected by the pipe inner wall; gradually adjusting the measurement position of the ultrasonic probe on the pipe outer wall along the circumferential direction; and recording a circumferential angle of the ultrasonic probe by a circumferential angle ruler when the echo has mutation, and further calculating the height of the accumulated liquid. The method is a non-intrusive accumulated liquid measurement method, does not change the structure of the conventional pipeline, has no medium leakage risk, does not affect the operation such as cleaning the pipeline and the like, meanwhile is not affected by the composition of gas and liquid phase media in the pipeline and parameters such as temperature, pressure and the like, overcomes the defect that the conventional ultrasonic technology needs complex sound velocity correction, and is particularly suitable for measuring the accumulated liquid inside the pipeline for conveying corrosive and toxic media.

The invention discloses a fluid flow rate and flow measurement device and method. The fluid flow rate measurement device comprises an alternating current excitation source, a three-electrode noncontact type conductivity sensor, a two-end grounding structure, a signal processing module, a data acquiring module and a microcomputer. The invention realizes that a noncontact conductivity measurement technology is used in fluid flow rate and flow measurement. Two groups of independent conductivity signals are obtained by using the three-electrode noncontact type conductivity sensor, and processed by adopting relevant technologies to obtain fluid flow rate and flow. According to the adopted series resonance method, the adverse influences on the measurement range and the sensitivity of a coupling capacitor are effectively eliminated. By adopting the two-end grounding structure, the adverse influences to the measurement precision by floating voltages at two ends of a pipeline are eliminated, and an insulation measurement pipeline is facilitated to be connected with an industrial site metal pipeline. The fluid flow rate and flow measurement device has the advantages of simple structure, low cost, non contact, no pressure loss, wide application range and the like, and provides an effective path for measuring the flow rate and the flow in the pipeline.

The invention relates to a guide blade or a stator blade, and an air treatment device having the guide blade or the stator blade. The guide blade or the stator blade comprises a wheel hub, blades and a wheel cover, wherein the blades are distributed on the wheel hub and/or the wheel cover at certain intervals along the circumferential direction. Structural characteristics of the guide blade or the stator blade are that: the blades comprise a first group of blades and a second groups of blades; the two groups of the blades have conductive properties; the first group of the blades and the second group of the blades are staggeredly distributed and insulated, and are not conducted; the first group of the blades and the second group of the blades are respectively applied with high potential and low potential so as to form a charged high voltage space between the first group of the blades and the second group of the blades, the high voltage space forms a dust removing channel, and the dust removing channel can effectively adsorb dust particles flowing through the dust removing channel. The blade and the device of the present invention have characteristics of simple and reasonable structure, high dust absorption efficiency, low resistance, low power consumption, low noise and no pressure loss. In addition, with the blade and the device of the present invention, air delivery, air pressure and efficiency of a fan can be effectively improved.

The invention discloses a non-contact ultrasonic flow velocity meter. The non-contact ultrasonic flow velocity meter comprises an ultrasonic transducer, an electronic circuit and a flow display and accumulation system, wherein the ultrasonic transducer comprises an ultrasonic emission transducer and an ultrasonic receiver; the ultrasonic emission transducer is used for converting electric energy into ultrasonic energy, and emitting the ultrasonic energy to the detected flow; the ultrasonic receiver is used for receiving ultrasonic signals and sending the ultrasonic signals to the electronic circuit; the electronic circuit comprises an emission unit, a receiving unit and a signal processing unit; the receiving unit is used for receiving the ultrasonic signals sent from the ultrasonic receiver and sending the ultrasonic signals to the signal processing unit to process the signals; and the emission unit sends the signals processed by the signal processing unit to the flow display and accumulation system. As the non-contact ultrasonic flow velocity meter installs the ultrasonic emission transducer and the ultrasonic receiver on the outer wall of a pipeline to be detected, flow detection when the water flow is opened wide can be performed, and no detection elements are required to be installed in the flow while the flowing state of the flow is not changed.

The present invention discloses a self-operated emergency cutting method of oil-gas pipe. According to the method of the invention, the emergency cutting-off to the pipe is realized through a triggering mechanism and a straight-through gate valve which is controlled by the triggering mechanism for opening and closing. The invention also discloses a self-operated emergency cutting valve for realizing the method. According to the invention, as the triggering mechanism is adopted for controlling the opening and the closing of the straight-through gate valve for realizing the emergency cutting-off so that the oil-gas inlet pipe is directly communicated with the oil-gas outlet pipe, so that the throttling and pressure loss are not generated. The cleaning to the pipe and the valve by the cleaning ball is facilitated and the impurity deposit is prevented. Furthermore the cut-off valve has the advantages of simple structure, reliable safety and low production cost. The method and the cut-off valve of the invention are not only suitable for conveying the natural gas, but also are suitable for conveying other liquid or gas medium of oil, steam, etc. The method and the cut-off valve of the invention can also be used for the initial product of oil-gas containing sand, water and sulfur, and can also be used for the oil production and gas production wellhead and the middle and downstream pipe network.

The invention discloses a circuit board testing device which comprises a switching module, a conductive module, a supporting module and a control unit. The switching module is provided with a plurality of testing points. The bottom surface of the conductive module is connected with the switching module so that the plurality of testing points of the switching module are electrically connected with a plurality of conductive paths of the conductive module in a one-to-one correspondence manner. The top surface of the conductive module is used for making contact with a to-be-tested circuit board so that the conductive paths of the conductive module are electrically connected with electric connecting pins of a device on the tested circuit board in a one-to-one correspondence manner. According to the circuit board testing device, the conductive module realizes electric connection between the testing points of the switching module and pins of a to-be-tested product through the plurality of conductive paths, thereby realizing a good testing effect. Furthermore compared with a prior-art probe, the conductive module has advantages of lower pressure in making contact with the pins of the product, and effective prevention for pressing damage, stab and deformation of pins of the product.

Disclosed are a centrifugal wind wheel and an air treatment device with the same. The centrifugal wind wheel comprises a base plate, a motor mounting hole, blades and a reinforcing frame or wheel cover, one ends of the blades are distributed on the base plate at certain intervals along a peripheral direction, the other ends of the blades are fixed on the reinforcing frame or wheel cover along the peripheral direction, the blades comprise a first group of blades and a second group of blades, both the two groups of blades have conduction characteristics, and the first group of blades and the second group of blades are distributed in a mutually staggered manner, are insulated from each other and are not conducted; and high potential and low potential are respectively applied to the first group of blades and the second group of blades, a high-voltage charging place is formed between the first group of blades and the second group of blades which are staggered mutually and forms a dust removal channel, and the dust removal channel can effectively absorb dust particles in airflow flowing through the dust removal channel. The centrifugal wind wheel and the air treatment device with the same have the advantages of simple and reasonable structure, high dust absorption efficiency, low resistance, electricity consumption and noise and zero pressure loss.

The invention is a permanent magnetism small caliber flow meter, which includes a flow sensor, conversion monitor and power. The keys of the technology are: the straight pipe segment of the flow sensor measuring pipe is lined with a insulating cover, the permanent magnetisms are arranged in the concave slots along the external circle of the measuring pipe, there has a pair of compound conductor electrode at two side of the position vertical to the magnetic lines on the inner surface of the lined insulating cover in the straight pipe segment of the measuring pipe. A temperature sensor is attached onto one conductor electrode. It maintains the merits of the traditional electromagnetic flow meter that not apt to be blocked, no pressure loss, and it solves the problem that the circuit is complex, the cost is high, and apt to be affected by electromagnetic disturbance, the measurement is not precise.

An efficient energy-saving and multipurpose solar water heater comprises a hot water storage tank, an evaporation water tank, a preheating water tank, a distilled water tank and a full glass double-vacuum solar collector tube, wherein a vapor heat exchanger and a domestic hot water exchanger are installed in the hot water storage tank; an assisting electrical heating pipe and a flow deflector are installed in the evaporation water tank; a distilled water exchanger is installed in the preheating water tank; a tap water inlet heat exchanger is installed in the distilled water tank; the tap water inlet heat exchanger, the preheating water tank and the domestic hot water thermal exchanger are communicated with each other in sequence, so as to provide domestic hot water for users; the full glass double vacuum solar collector tube is communicated and connected with the evaporation water tank; and the evaporation water tank, the vapor heat exchanger, the distilled water heat exchanger and the distilled water tank are connected and communicated with each other in sequence, so as to provide drinking distilled water for the users. The invention has the advantages of novel structure, high heat efficiency, energy conservation, multiple purposes and excellent technical performance.

The invention discloses a pipeline-free material adsorption apparatus used for a high-precision workpiece table. The pipeline-free material adsorption apparatus is characterized by comprising a suction cup, an air cylinder, a piston and a motor; a pipeline in the suction cup is connected with the air cylinder; and the motor drives the piston to move to cause negative pressure in the internal of the air cylinder and to enable the suction cup to absorb materials. Compared with the prior art, the pipeline-free material adsorption apparatus has no external air source, so that pressure loss in a transmission path and the interference from a pipeline are avoided; and meanwhile, the pipeline-free material adsorption apparatus is not limited by the environment, so that the pipeline-free material adsorption apparatus can be applied to the atmospheric environment.

A quick valve (3) comprises a swing member (8) and an angle adjusting member (9). The swing member (8) can be rotatingly fixed on a valve body (7), the valve body (7) has a valve port (10), the swing member (8) can rotate along the direction that clings to or far away from the valve port (10). The angle adjusting member (9) can cover the valve port (10), the angle adjusting member (9) is combined with the swing member (8), and the angle adjusting member (9) can adjust an angle between itself and the valve port (10). The quick valve is simple in structure, easy to process, high in sealing reliability, quick in switch and with no abrasion during rotation and no pressure loss.

The invention discloses an ultra-high pressure device based on a hinged-type hexahedral press and belongs to the technical field of ultra-hard material synthesis equipment. The ultra-high pressure device structurally comprises six press anvils (1) which are synchronously driven by a hexahedral press, a cubic synthesis block (3) and pressurization anvils (5) arranged between press anvil faces (2) and the plane of the synthesis block (3). The invention is characterized in that the ltra-high pressure device further comprises a cubic support frame (4) which is formed by assembly of four pressurization anvil holders (6), each pressurization anvil holder (6) is formed by three columns which are perpendicular to one another, and the pressurization anvils (5) can pass through the six planes of the cubic support frame (4) and move in the axial direction of the pressurization anvils (5) to apply a pressure to the synthesis block (3) or relieve the pressure of the synthesis block (3). The invention has the biggest advantage as follows: the six pressurization anvils (5) can be assembled on the cubic support frame (4) very easily and can be used directly without needing setting-up or alignment; the installation and set-up are rapid and accurate; and the time is saved.

The invention relates to a high-efficiency energy-saving pretreatment process used for generating gas. The invention relates to a high-efficiency energy-saving pre-treatment method for generating gas. The method employs a dedusting, dehumidification and supercharging machine and integrated equipment to dedust, dehumidify and supercharge the gas sent to a generator set. The method has the advantages of high dehumidification efficiency, energy saving, and high efficiency of dust removal, and maximum dust particle size of from the outlet is not greater than 1.5 [mu]m, and pressurization mixing pressure is adjustable. By adopting the process method of the invention, pretreatment of gas is carried out, efficient utilization of resources can be satisfied, operation cost is reduced, and energy is saved and cost is reduced.

The invention discloses an online oil abrasive particle imaging and counting sensor for an airplane engine and a manufacturing method. The online oil abrasive particle imaging and counting sensor comprises a pipeline center. The pipeline center is embedded into a sensor pipe wall. The sensor pipe wall is circular and concentric with the pipeline center. A sensor inner core is embedded into the sensor pipe wall. A plurality of metal electrode plates are embedded into the sensor pipe wall. The sensor pipe wall is provided with an interface part and a metal lead. The metal electrode plates are used for imaging so as to detect abrasive particles. The manufacturing method includes: performing 3D printing on metal materials to allow the metal materials to be formed into the metal electrode plates; using polymer insulating materials to form the sensor pipe wall and the sensor inner core through integral injection molding so as to obtain a formed body; machining the interface part on the basis of the formed body; using static spraying to manufacture an outer shielding metal layer on the outer wall of the formed body. The online oil abrasive particle imaging and counting sensor and the manufacturing method have the advantages that the structure of the sensor is improved, the 3D printing is used, detection reliability is increased, and abrasive particle imaging detection and quantitative abrasive particle counting are achieved.

The invention discloses a supersonic wave-ozone-based flue gas desulphurization and denitration device. Air goes through a first valve and then enters a first dryer, the first dryer and a plasma ozone generator are connected by a flowmeter, the plasma ozone generator has two output paths, one path goes through a third valve and then is orderly connected to a second dryer and a first ozone concentration sensor, the other path goes through a second flowmeter and then is orderly connected to a second valve and a flue gas reaction chamber, flue gas is input into the flue gas reaction chamber, an ultrasonic generator is arranged in the flue gas reaction chamber, liquid water orderly goes through a forth valve, a third flowmeter and an ultrasonic oscillator and then is fed into the flue gas reaction chamber, through ultrasonic wave activation action on water and ultrasonic wave mass transfer enhancement effects, when flue gas and ozone go through water mist subjected to ultrasonic treatment and then enter the reaction chamber, gas and water mist in the reaction chamber are subjected to activation under ultrasonic wave action and produce a lot of hydroxyl radicals and other active particles and SO2 and NOX in the flue gas are removed.

The present invention relates to an intelligent gas leakage detection device. It includes gas pipeline mounting portion, gas pipeline control device mounted in the gas pipeline mounting portion, also includes two ultrasonic transducers, microprocessor and closing valve. Said invention also provides their connection mode. The described microprocessor includes transmitting and receiving switching unit, time metering unit, information storage portion, comparison analysis unit, closing valve driving unit and remote communication unit. Besides, said invention also provides its working principle and operation method.