1004 results about "Orifice plate" patented technology

The invention provides a double-wall cooling structure. The double-wall cooling structure comprises an air film hole plate, an impingement hole plate and a plurality of narrow walls, a plurality of air film holes are formed in the air film hole plate, a plurality of impact holes are formed in the impact hole plate, and the impact hole plate and the air film hole plate are arranged at intervals to form a cooling channel; the narrow walls are arranged in the cooling channel at intervals in the first direction parallel to the flow direction of gas outside the gas film hole plate, the cooling channel is divided into a plurality of cold air cavities, and the gas film hole communicates with the impact hole through the cold air cavities; wherein in the orthographic projection in the thickness direction of the gas film pore plate, the projections of the gas inlet ends of the gas film pores and the projections of the gas outlet ends of the impact pores are arranged in a staggered manner.

The invention discloses a methanol direct injection injector, comprising: an injector body and a solenoid valve component, an orifice plate, a control valve seat and a needle valve component which are installed below the injector body through a tight cap of the injector body; wherein the solenoid valve component is located above the orifice plate, the orifice plate is located above the control valve seat, and the control valve seat is located above the needle valve component; a first and a second straight hole are arranged on the orifice plate, an inclined hole, a third straight hole and two small holes are arranged on the control valve seat, a needle valve component control chamber is arranged on the upper part of the needle valve component, the lower end of the first straight hole is communicated with the lower end of the second straight hole on the orifice plate and the upper ends of the inclined hole, the third straight hole and the two small holes on the control valve seat, and the lower ends of the inclined hole, the third straight hole and the two small holes on the control valve seat are communicated with the needle valve component control chamber; the opening and closing of the second straight hole on the orifice plate is controlled by turning on and off the power of the solenoid valve component, and then the methanol liquid pressure in the control chamber of the needle valve component is controlled to realize the start of the needle valve component injection.

The invention relates to the technical field of flow regulation, in particular to a rotary orifice plate flow device which comprises a flow guide body and an orifice plate body, and the flow guide body is provided with a flow channel and a movable cavity communicating with the flow channel; the pore plate body is movably arranged in the movable cavity, a plurality of flow dividing holes with different hole diameters are formed in the pore plate body in a penetrating mode, and the pore plate body is used for being driven to move in the movable cavity so that one flow dividing hole can be communicated with the flow channel. According to the rotating pore plate flow device, the pore diameter adjusting flexibility is high, by driving the pore plate body to move in the movable cavity, the flow dividing holes with different pore diameters can be conveniently communicated with the flow channel, pore diameter adjusting can be rapidly achieved, and it is not needed to spend a large amount of time to replace the pore plate. The pore diameter can be quickly adjusted by driving the pore plate main body to move in the movable cavity under the condition that a pipeline and equipment are not disassembled, so that the device can respond to the change of the working condition in time in real time, and when the working condition is changed, different pore diameters can be adjusted to limit the flow and reduce the pressure.

The invention provides a soil permeability test device suitable for gradient variable-temperature freeze-thaw cycle test, which comprises a temperature control cylinder formed by axially extending and combining a plurality of annular insulating cylinders with hollow structures, an insulating and heat-conducting soil sample cylinder is mounted in a central chamber formed by the temperature control cylinder, a water storage chamber is arranged on one side of the soil sample cylinder, and a water outlet is formed in the other side of the soil sample cylinder. A porous anode plate is arranged between the water storage chamber and the soil sample cylinder, a water collecting chamber is arranged on the other side of the soil sample cylinder, a porous cathode plate is arranged between the water collecting chamber and the soil sample cylinder, an orifice plate flowmeter is arranged between the water collecting chamber and the porous cathode plate, and the water storage chamber is connected with a water supply system; a pore pressure sensor and a temperature sensor are installed on the side wall of each annular insulating cylinder, and each annular insulating cylinder is connected with a refrigeration module and a heating module. The device can simulate a real environment to perform freezing and thawing and gradient temperature control on the sample, can effectively simulate a real geological environment in an alpine region, and provides a scientific basis for research on permeability of frozen soil under a gradient freezing and thawing cycle condition.

The utility model provides a two-stage jet flow reflection mixing flow guide distributor, a heat exchange device and refrigeration equipment. The two-stage jet flow reflection mixing flow guide distributor comprises a cavity, a liquid inlet pipe, a two-stage jet flow reflection mixing component and a plurality of branch pipes. The two-stage jet flow reflection mixing component comprises a first-stage reflection mixing plate, a second-stage jet flow hole plate and a second-stage reflection mixing plate which are sequentially distributed in the cavity at intervals in the flowing direction of the refrigerant. The first-stage reflecting and mixing plate is distributed opposite to the inflow end of the cavity so as to reflect and mix a refrigerant injected into the cavity from the liquid inlet pipe, and a plurality of overflowing holes are formed in the first-stage reflecting and mixing plate. The second-stage jet flow hole plate and the first-stage reflection mixing plate define a jet flow cavity, and a second-stage jet flow hole is formed in the jet flow cavity. The second-stage reflection mixing plate is opposite to the second-stage jet flow holes and is provided with a plurality of flow guide holes of which the number is the same as that of the shunting branch pipe holes; and each flow guide hole is basically coaxial with the corresponding shunting branch pipe hole. And the plurality of branch pipes are respectively welded and connected in the plurality of shunting branch pipe holes in the outflow end of the cavity.

The invention relates to the technical field of micron-sized jet flow and uniform atomization, in particular to a monodisperse uniform fog drop device and an atomization spray head spray hole array arrangement method, and the monodisperse uniform fog drop device comprises a driving source, a liquid supply device and a spray head; the spray head is a monodisperse atomizing spray head, the driving source is an ultrasonic signal generating system, the liquid supply device supplies constant-pressure fluid to the spray head, and the spray head forms monodisperse spray under the driving of high-frequency sound waves of the ultrasonic signal generating system; the spraying hole array arrangement method of the atomizing nozzle comprises the following steps of: setting smaller spraying hole spacing in small deformation areas close to the center of the spraying hole plate and constraint ends on two sides of the spraying hole plate; a large safety distance is arranged in a large deformation area between the restraining end of the spray orifice plate and the center of the spray orifice plate, so that intersection caused by jet flow intersection is prevented. According to the device and the arrangement method, the problems of mutual interference and the like between large-scale array jet flows are solved; the controllability of the size and the speed of the monodisperse atomized liquid drops can be effectively improved, so that macro micro liquid drops with uniform size and concentrated speed are generated.

The invention discloses a dry quenching furnace red coke feeding buffer mechanism which comprises a first feeding pipe section and a second feeding pipe section, one end of an inclined rod penetrates into a barrel, the top face of the inclined rod is fixedly connected with a plurality of conical rods, the top ends of the conical rods penetrate through a hole plate and are in sliding connection with the hole plate, and the other end of the inclined rod penetrates into a cover and can penetrate into the position between two adjacent protruding blocks. The top face of the pore plate is a corrugated face, the radius of corrugation is gradually increased in the direction close to the center of the barrel, the sliding block is arranged in a sliding groove in a sliding mode, the sliding groove is formed in the inner surface of the cover body, the top face of the shifting rod is an outwards-protruding arc face, and the pore plate drives the red coke to rotate to generate centrifugal force to reduce the flow speed of the red coke. The swing assembly pushes the pore plate to longitudinally swing to raise the red coke, and meanwhile, the convex block pushes the inclined rod to drive the conical rod to longitudinally move to crush the red coke, so that accumulation of the red coke is reduced, the contact area between the red coke and inert gas is increased, and the heat exchange effect is improved.

The invention provides a turbine guider testing device comprising a main gas supply module used for adjusting and measuring main gas flow; the combustion heating module is connected to the downstream of the main gas supply module and comprises a combustion chamber and a throttling device arranged at an outlet of the combustion chamber; the flow field setting module is connected to the downstream of the combustion heating module and is used for carrying out flow field homogenization treatment on the high-temperature fuel gas; the guider test module comprises a guider test piece connected to the downstream of the flow field setting module and is used for installing a turbine guider to be tested; the cold air adjusting module comprises a cold air pipeline, a cold air inlet valve group, a cold air distribution tank, a multi-path cold air flow adjusting valve and a multi-path cold air flow orifice plate, the cold air distribution tank divides cold air into a plurality of independent channels, and the cold air flow is dynamically adjusted through the flow adjusting valve and the flow orifice plate of each channel; and the fuel oil control module is connected with the combustion chamber and comprises an oil supply pipeline, a main and auxiliary oil way fuel oil flow meter, a main and auxiliary oil way oil supply regulating valve and a proportional reversing valve.

The invention provides a method for high-precision positioning of an orifice plate of a sampling system, and belongs to the technical field of orifice plate positioning, and the method comprises the following steps: randomly moving a sample needle above a sample injector platform of a flow cytometer, and controlling two groups of laser correlation sensors arranged on the sample injector platform to move; shooting and acquiring a current image after movement, determining the position difference between a laser correlation point of the current image and the sample needle, and judging whether the position difference meets a set standard or not; if the set standard is not met, continuously controlling the two groups of laser correlation sensors to finely move according to the standard error until the set standard is met; and when a set standard is met, performing closed-loop control on the stepping motor based on the obtained first hole coordinate and the whole-disc hole position coordinate system, and further inserting the sample needle into the corresponding hole position. According to the invention, fine adjustment of the sensor is realized, the accuracy of coordinate acquisition is ensured, visual errors are avoided, and improvement of automatic production efficiency is facilitated.

The invention belongs to the technical management field of nuclear power plants, and particularly relates to a continuous exhaust system and method for a nuclear power plant voltage stabilizer, the system comprises an automatic pressure relief main pipeline, an exhaust pipeline, a first electromagnetic isolation valve, a second electromagnetic isolation valve, a throttling orifice plate, a drain tank, a radioactive waste gas system, a voltage stabilizer and a pressure stabilizing valve; an automatic pressure relief main pipeline and a pressure stabilizer safety valve are arranged at the top of the pressure stabilizer, an exhaust pipeline is arranged on the automatic pressure relief main pipeline, and the exhaust pipeline is connected with a radioactive waste gas system through a drain tank; a throttling orifice plate is arranged on the automatic pressure relief main pipeline and located on the upstream of the exhaust pipeline. A first electromagnetic isolation valve, a second electromagnetic isolation valve and a pressure stabilizing valve are sequentially arranged on the exhaust pipeline; and the pressure stabilizing valve is an automatic downstream pressure regulating valve. Continuous and stable exhaust of the voltage stabilizer can be achieved, the exhaust frequency is greatly reduced, and meanwhile the operation reliability of the electromagnetic isolation valve is improved.

The invention provides an air source heat pump system. The air source heat pump system comprises a compressor, a fin heat exchanger, a shell tube heat exchanger and a gas-liquid separator, wherein the shell tube heat exchanger comprises a gas tube, a liquid tube, a heat exchange tube and a liquid separating device, the air source heat pump system further comprises a four-way valve, the four-way valve is correspondingly communication with the compressor, the gas-liquid separator, the fin heat exchanger and the gas pipe, the fin heat exchanger is in communication with the liquid separating device through a orifice plate and a first one-way valve; the fin heat exchanger is in communication with the liquid tube through an expansion valve and a second one-way valve; the first one-way valve is used for the one-way conduction of the fin heat exchanger to the liquid separating device; the second one-way valve is used for the one-way conduction of the liquid pipe to the fin heat exchanger. By the adoption of the system, a liquid storage device of the liquid refrigerant does not need to be added in the system, so that the cost is saved; a large amount of liquid refrigerant cannot flow back to the compressor after defrosting is finished; during the refrigeration mode, the refrigerant running shell pass does not need to be subjected to suction superheat, so that the air suction pressure and the operation efficiency of the refrigeration mode are improved; and the overall use valve of the system is less, and the reliability is high.

The invention relates to the technical field of flow meters, and provides an orifice plate flow meter and an application method thereof.The orifice plate flow meter comprises a rear end pipe, an orifice plate and a front end pipe, the rear end pipe comprises a rear pipe body, a positioning ring and an inner turned edge, and the positioning ring is fixedly arranged in the rear pipe body; the inner curled edge is arranged in the rear pipe body, and one end of the inner curled edge and one end of the rear pipe body are integrally formed and continuously arranged; the hole plate is fixed between the positioning ring and the inner turned edge in an abutting mode. The front end pipe and the rear pipe body are coaxially arranged, and one end of the front end pipe is welded and fixed to the outer side of the inner curled edge. According to the orifice plate flow meter, the rear end pipe comprises the rear pipe body, the positioning ring and the inner turned edge, the orifice plate and the rear end pipe can be fixed firstly, then the rear pipe body and the front end pipe are connected, the orifice plate flow meter can be assembled conveniently, the mounting precision of the orifice plate can be guaranteed, and therefore the detection precision of the orifice plate flow meter is improved.

The invention relates to the technical field of compressors, in particular to a series-connection automobile towing compressor system and an automatic surge control method. The series-connection automobile towing compressor system comprises a plurality of stages of automobile towing compressors, a plurality of temperature reduction devices, a bypass return valve, a plurality of temperature reduction adjusting valves and a plurality of orifice plate flowmeters. The problems that in the prior art, cost is high, energy consumption is large and the control effect is not ideal are effectively solved, the multiple stages of automobile dragging compressors are arranged in series and matched with the temperature reducing device and the bypass backflow valve, effective circulation and temperature control of media are achieved, cost of independently using a surge backflow valve in the prior art is reduced, and meanwhile the control effect is good. Through the arrangement of the vortex shedding flowmeter, the pressure sensor, the temperature sensor and the rotating speed sensor, the inlet flow, pressure, temperature and rotating speed of each stage of compressor are accurately measured, in combination with theoretical surge pressure ratio calculation, the surge risk is pre-judged in advance and automatically controlled, and energy consumption increase caused by premature intervention of a bypass return valve at the low rotating speed is avoided.

The utility model discloses an on-line blowback device for an orifice plate flowmeter. The on-line blowback device comprises a flowmeter main body, connecting pipes are installed at the two ends of the flow meter body, a back flushing mechanism is installed at the bottom of the connecting pipe at one end of the flow meter body, a treatment box is installed at the bottom of the connecting pipe at the other end of the flow meter body, a filter screen is installed in the treatment box, and a treatment mechanism is installed on the side, close to the filter screen, in the treatment box. The treatment mechanism comprises a connecting pipe, a control valve, an air inducing pipe and a blowing pipe, and the connecting pipe is mounted on one side of the reverse blowing mechanism; according to the utility model, the connecting pipe, the control valve, the air inducing pipe and the blowdown pipe are matched for use, and the control valve on the outer side of the connecting pipe is opened, so that the blowback mechanism conveys air into the air inducing pipe through the connecting pipe, and when air is blown out from the inside of the blowdown pipe, impurities separated and adhered on the filter screen can be directly blown down and then discharged; therefore, later treatment by personnel is not needed, and use by the personnel is facilitated.

Variable Orifice Plate technology represents new physics for measuring fluids accurately over a dynamic range and obsoletes fixed orifice plates. Therefore, a new balancing procedure using an updated correction factor is needed to mitigate and calibrate for field systems effects. Architectures are provided that can leverage correction factor values (CFVs) that are determined from a third party device such as a TAB contractor in order to determine other CFVs for a fluid flow with a variable aperture. The fluid flow device can change state, which changes the area of the variable aperture and, accordingly, the fluid flow profile. Multiple CFVs can be determined from TAB measurements taken while the fluid flow device is in respective different states, while other CFVs for different states can be determined as a function of the known CFVs and associated states or other suitable data such as damper position, aperture area, or the like.

The invention relates to the technical field of flow measurement, in particular to an integrated differential pressure type orifice plate flowmeter which comprises a differential pressure transmitter, a filtering structure, a driving structure, a mounting structure, a fixing structure, a dismounting structure, a three-valve set, a pressure guide pipe and a mounting pipe. The arrangement of the filtering structure is convenient for intercepting and filtering a medium in the fluid channel, impurities can be prevented from entering a subsequent detection assembly to influence the detection effect, interference on flow detection is prevented, the driving structure is convenient for driving the guide block to drive the filter screen to reciprocate, and the relative position of the filter screen and the impurities is continuously changed. A first screw rod in the mounting structure drives a connecting ring to drive a plurality of abutting blocks to abut against a pipeline flange plate at the same time, so that particle impurities are not prone to adhering to the surface of a filter screen, the blocking risk is reduced, it is ensured that fluid smoothly passes through the filter screen, and a hole plate can be rapidly replaced without disassembling a plurality of components through drawing and inserting type mounting in the mounting structure, and the replacement efficiency is improved. And the installation efficiency of the flowmeter installation pipe is improved.

The present invention provides a novel welded orifice flowmeter for taking pressure from an annular chamber, comprising a measuring tube, a front clamping ring, a pressure taking tube, a rear clamping ring and an orifice plate; the front clamping ring and the rear clamping ring are connected by welding, a front annular chamber is arranged in the front clamping ring, a rear annular chamber is arranged in the rear clamping ring, an inclined surface is adopted at the connection between the orifice plate and the rear clamping ring, the back of the orifice plate is connected with the rear annular chamber through an annular gap and a slot on the orifice plate, the front of the orifice plate is connected with the front annular chamber through an annular gap and a slot on the orifice plate, and a pair of pressure taking tubes are arranged on the front clamping ring and the rear clamping ring, respectively, and are connected with the annular chambers of the front clamping ring and the rear clamping ring, respectively. The present invention adjusts the butt weld position of the front and rear clamping rings, can carry out weld quality inspection, adopts an inclined surface transition, and the slope of the inclined surface meets the requirements of the safety technical specifications for special equipment. Compared with the original structure, the local peak stress caused by the structural mutation is greatly reduced, and the safety performance of the flowmeter is improved.

The utility model belongs to the technical field of flow meters, and provides an orifice plate flow meter which comprises a first pipeline, a second pipeline, a connecting seat, an orifice plate, a sealing ring and a driving mechanism. The first pipeline and the second pipeline are oppositely arranged, the lower end of the first pipeline and the lower end of the second pipeline are fixedly connected together through the connecting seat, and the pore plate is arranged between the first pipeline and the second pipeline; one end of the sealing ring is arranged on the first pipeline in a sleeving mode, the sealing ring and the first pipeline are kept sealed, and the driving mechanism is used for driving the sealing ring so that the sealing ring can tightly press the pore plate, and therefore the two ends of the pore plate can be kept sealed with the sealing ring and the second pipeline correspondingly. According to the utility model, the sealing ring can be far away from the pore plate for a certain distance, so that the pore plate can be directly taken down from the connecting seat, the pore plate can be quickly replaced, and the convenience is improved.

The invention relates to a spraying system detection method and device, computer equipment and a storage medium. The method comprises the following steps: acquiring an equiaxed diagram of a spraying system in a nuclear power plant; according to the equiaxed diagram, the target orifice plate flow passing through a throttling orifice plate in the circulation pipeline is determined; under the condition that the target orifice plate flow belongs to the standard flow interval, a spraying pump is controlled to be started, and the pipeline flow in a circulating pipeline is detected; and when it is detected that the pipeline flow in the circulation pipeline is the preset flow, all the isolation valves are controlled to be opened in sequence, and the opening time of the isolation valves and the reliability of the circulation pipeline are detected. By adopting the method, the reliability detection of the spraying system can be simply, efficiently and comprehensively completed.

To provide a hydrogen gas leakage detection device and a leakage detection method that can easily detect hydrogen gas leakage from flanges of piping in an orifice assembly by using an orifice as a flowmeter capable of measuring a hydrogen gas flow rate under a high-pressure environment.SOLUTION: A hydrogen gas leakage detection device includes a first flange 302 in upstream-side piping of hydrogen gas piping with a predetermined diameter and a second flange 303 in downstream-side piping. An orifice plate 304 is clamped between the opposing first flange 302 and second flange 303. The device includes an orifice flowmeter unit 30 that measures a gas flow rate by measuring gas pressure on the upstream side and downstream side of the orifice plate 304. The device includes a leak port 307 that guides hydrogen gas leaking from between the first flange 302 and the second flange 303 to the outside. The device includes a hydrogen gas sensor 310 that detects the hydrogen gas guided from the leak port 307.SELECTED DRAWING: Figure 3

The present invention relates to a vaporizing device for a semiconductor process, comprising: a first atomizing unit for first atomizing a liquid source by using ultrasonic waves to vibrate the liquid source; a second atomization unit connected to the first atomization unit and configured to discharge the primarily atomized particles flowing in from the first atomization unit to a discharge port (orifice plate) at a carrier gas pressure to secondarily atomize the particles; and a vaporizing part which is connected to the second atomizing part and through which the secondary atomized particles flowing in from the second atomizing part pass and vaporize. Therefore, the atomization efficiency and the vaporization efficiency can be improved, the usage amount of liquid sources is reduced, and high-flow treatment is carried out.

The invention discloses a throttling orifice plate online deslagging and cleaning device based on bypass switching, and relates to the technical field of throttling orifice plate online cleaning, the throttling orifice plate online deslagging and cleaning device specifically comprises a medium pipeline and a bypass pipeline, the two sides of the medium pipeline communicate with the bypass pipeline, and a throttling plate assembly is installed on the medium pipeline; according to the invention, intelligent differential pressure monitoring and automatic control are carried out on the circulation of the throttling orifice pipeline, the differential pressure monitoring unit is used for detecting the pressure change of the fluid on the upstream side of the throttling orifice in real time, and the decision displacement unit in the controller is used for automatically judging the blockage degree and driving the hydraulic mechanism to work to complete bypass switching; by means of the design, full-process automation from detection to cleaning is achieved, the requirement for manual intervention is lowered, the cleaning efficiency and accuracy are improved, meanwhile, manual operation errors are reduced, and production safety, energy conservation and consumption reduction are further guaranteed.

A cap assembly, a battery, and a battery pack. The cap assembly includes an explosion-proof sheet including a main body and a protrusion provided on a first surface of the main body; an orifice plate including a first portion and a second portion that are connected, at least one first pressure relief hole being disposed between the first portion and the second portion, the first portion being disposed closer to a center of the orifice plate relative to the second portion; an insulating gasket disposed between the explosion-proof sheet and the orifice plate, where the insulating gasket being configured to cover at least a portion of the first portion.

The invention discloses a rocket attitude control method and related equipment, and relates to the technical field of attitude control, and the method comprises the steps: obtaining a rolling attitude angle of a rocket; generating a control instruction according to the deviation between the rolling attitude angle and the target attitude angle; and on the basis of the control instruction, electromagnetic valves of at least one pair of symmetrically-arranged cold air spray pipes are controlled to be opened and closed so that high-pressure gas can be released to generate thrust, the posture is adjusted to the target posture angle, the high-pressure gas is supplied through a pressure reducing valve, and a buffering electromagnetic valve and a buffering hole plate are arranged in front of the pressure reducing valve so that the pressure rise rate in front of the pressure reducing valve can be controlled not to exceed a preset threshold value. The combined structure of the buffer electromagnetic valve and the buffer pore plate is arranged in front of the pressure reducing valve, the pressure rise rate of high-pressure gas is dynamically adjusted, it is ensured that the pressure change of an inlet of the pressure reducing valve is always lower than the preset threshold value, and the pressure impact problem caused by rapid opening and closing of the electromagnetic valve is effectively restrained.

The present invention discloses a direct vibration fluidized bed, which relates to the technical field of fluidized beds and includes a mounting base. The top of the mounting base is provided with a fluidized bed main body through a plurality of vibration springs, and a vibration motor is installed on the side of the fluidized bed main body. In the present invention, when the vibration motor is started, the material moves from the upper orifice plate and the lower orifice plate towards the discharge hole. Then, the air inlet is connected to the hot gas inlet, and the air outlet is connected to the exhaust pipe, so that drying can be carried out during the material transportation process. By starting the leveling mechanism, the stirring mechanism is driven to stir the material about to leave the upper orifice plate, improving the drying effect. The thickness uniformity of the stirred material is different. After leaving the upper orifice plate, it falls onto the lower orifice plate, and the leveling mechanism flattens the material with different thickness uniformities, so that the material moves on the vertical plate with the same thickness, and the thickness of the material can be controlled.

The invention relates to a device (1) for producing a cable bundle, comprising: a cable spreading plate (2) on the front side of which cables (4) of the cable bundle can be arranged; the invention relates to a device (1) for operating a cable bundle (4), comprising a spreading plate (2) designed as an orifice plate, and operating elements (5, 5 ', 5' ') for operating the cable (4) of the cable bundle, the operating elements (5, 5', 5 '') being magnetically mounted on the spreading plate (2), the device (1) having a pneumatic member by means of which an air cushion can be generated between the operating elements (5, 5 ', 5' ') and the spreading plate (2) designed as an orifice plate, the operating elements (5, 5', 5 '') each comprising a front-side operating part (7) and a rear-side moving part (8).

The utility model relates to the technical field of coke oven heating, in particular to a coke oven gas heating combustion chamber temperature control device, which is characterized in that a gas header pipe adjusting unit is arranged at the front end of a single-hole combustion chamber adjusting unit and is connected with a coke oven gas main pipe, and each single-hole combustion chamber adjusting unit is connected with the coke oven gas main pipe; the output end of each single-hole combustion chamber adjusting unit is connected with the corresponding combustion chamber. And the gas main pipe adjusting unit comprises an adjusting valve C, a flow meter and a pressure transmitter, and the adjusting valve C, the flow meter and the pressure transmitter are sequentially arranged on the coke oven gas main pipe. The utility model has the advantages that: the regulating valve and the bypass regulating valve can completely replace the function of a pore plate box, so that the risk that a worker works in a dangerous area such as a gas basement is reduced; the loop A of the first adjusting branch pipe and the loop B of the second adjusting branch pipe are standby for each other, when one loop breaks down, the loop can be switched to the standby loop at any time, and the flow stability of heating gas is improved.

The invention relates to an automatic feeding and cutting mechanism for pore plate filler production, and belongs to the technical field of cutting equipment.The automatic feeding and cutting mechanism comprises a cutting table, a laser cutting assembly and a driving assembly used for driving the laser cutting assembly to move; the side, away from the cutting table, of the parking plate is provided with a first conveying belt used for conveying the pore plate filler in the direction of the cutting table, and the side, away from the parking plate, of the cutting table is provided with a second conveying belt used for conveying the pore plate filler in the direction away from the cutting table. A first moving assembly for driving the two clamping plates to move is arranged at the position of the parking plate, a second moving assembly for driving the two clamping plates to move in the opposite direction or away from each other is arranged on the cutting table, a push plate is arranged between the two clamping plates, and a third moving assembly for driving the push plate to move in the direction of the second conveying belt is arranged on the cutting table. The pore plate filler cutting device has the effect of improving the pore plate filler cutting efficiency.

The manual orifice plate throttling valve convenient to adjust comprises a main valve body, a valve element control mechanism and a flow control mechanism, the valve element control mechanism for controlling the flow speed of liquid or gas is arranged in the middle of the main valve body, and the flow control mechanism for accurately adjusting the flow speed of the gas or the liquid is arranged on the surface of the valve element control mechanism. The main valve body comprises a stainless steel valve cavity, a valve element sliding cavity, an inflow cavity, an outflow cavity and a connecting assembly, and the valve element sliding cavity is formed in the middle of the stainless steel valve cavity in an up-down penetrating mode. According to the manual orifice plate throttling valve convenient to adjust, the valve element control mechanism is arranged to be matched with the flow control mechanism, the adjusting threaded rod is made to ascend by rotating the adjusting hand disc, meanwhile, the elastic spring pushes the flow blocking valve element to slide upwards on the inner wall of the valve element sliding cavity, and due to the fact that the inner diameters of the direct-flow communicating notches are the same, the flow blocking valve element can be conveniently adjusted. The flow speed can be accurately controlled according to the communication number of the direct-current communication notches, the flow inlet cavities and the flow outlet cavities on the two sides, and then the purpose of accurately controlling the flow speed can be achieved.

A plug-in orifice plate flowmeter is characterized by comprising an orifice plate flowmeter body, a connecting plate is fixedly arranged on the orifice plate flowmeter body, a fixing hole is formed in the connecting plate, a fixing rod is arranged in the fixing hole, and a wedge block is arranged on the fixing rod; a second pipeline is aligned with a connecting plate of an orifice plate flowmeter body, a first pipeline is attached to the orifice plate flowmeter body, the first pipeline is rotated, a fixing rod is connected and fastened with the first pipeline, then three limiting blocks of an adjusting plate are placed in sliding grooves, the limiting blocks abut against the fixing rod, and the position of the fixing rod is kept still; the adjusting plate is connected with the first pipeline through the lock catch, the orifice plate flowmeter body is connected with the pipelines, the two pipelines can be fixed to the orifice plate flowmeter body only by installing the nut on the pipeline at one end without locking and inserting and rotating the other pipeline, operation is convenient, and working efficiency is improved.