138 results about "Sampling valve" patented technology

This invention relates to a sampling device and method for sulfur hexafluoride (SF6) and its mixed gases used in electrical equipment. The sampling device includes an equipment connection module, a sampling module, a gas filling module, and a vacuuming module. The equipment connection module, used to connect the electrical equipment and the gas sampler, consists of an equipment connection valve, a diaphragm pump, and corresponding pipelines. The sampling module, used for gas buffering, consists of a sampling cylinder, a pressure detection unit, a sampling valve, a gas filling valve, a tail gas valve, and corresponding pipelines. The gas filling module, used to fill the sampling container, consists of a booster pump, a sampling container connection valve, and corresponding pipelines. The vacuuming module, used for vacuuming and tail gas collection, consists of a vacuum pump, a tail gas collection device, and its connection valves. The sampling method utilizes appropriate flushing and vacuuming methods when the gas pressure is higher or lower than 0.2 MPa. This sampling device and method can improve the accuracy of sampling sulfur hexafluoride gas or sulfur hexafluoride mixed insulating gases.

The application provides a mixed gas preparation process and device with sampling, and belongs to the technical field of gas preparation. The application realizes backtracking detection of the sample of the mixed gas and the sample of the single-component gas source when the subsequent mixed gas is abnormal by sampling and storing the single-component gas source and sampling and storing the mixed gas, so that it is convenient to quickly and accurately determine which link in the preparation process has a problem, and it is convenient to subsequently correct and modify the process. In addition, the main valve core and the sampling valve core are arranged in the main gas channel and the sampling gas channel in the single-component sampling assembly and the mixed sampling assembly, respectively, the main valve core is closed or opened through the expansion and contraction of the switch assembly, the sampling valve core is opened or closed by moving the sampling storage tank driven by the switch assembly, the sampling gas channel is closed when the main gas channel is opened, and the main gas channel is closed when the sampling gas channel is opened, so that the gas flow in the sampling and mixing preparation process is not interfered with each other, and the quality of the mixed gas is ensured.

The utility model discloses an online purification device for a hydraulic station, which relates to the technical field of purification of hydraulic stations, is used for solving the problems in the prior art and comprises a purification device frame, a water absorption filter, a precision filter and a control cabinet are arranged on the purification device frame, the water absorption filter is connected with an oil inlet pipe, and the precision filter is connected with an oil outlet pipe. The water absorption filter is connected with the precision filter through a pipeline, and the end of the oil inlet pipe is an oil inlet pipe opening; a variable frequency gear pump, an oil inlet sampling valve, an oil inlet window and a first pressure sensor are sequentially arranged on the oil inlet pipe from an oil inlet pipe opening to the water absorption filter; according to the scheme, online purification is conducted, the structural design is reasonable, the matching effect is good, the cleanliness and the water content of the purified oil product can be obviously improved, the oil product quality is guaranteed, meanwhile, energy consumption is reduced, manual guarding is not needed, the energy consumption is reduced, and the production efficiency is improved. And the labor intensity of workers is reduced.

The utility model provides a closed sampling valve with a corrosion-resistant function, which comprises a sampling valve, the sampling valve consists of a stop valve and a sampling mechanism, the sampling mechanism is connected with the outlet end of the stop valve, the stop valve comprises a valve body, a connecting flange, a valve handle and a valve core, and a cleaning mechanism is fixedly mounted at the bottom of the valve body. The closed sampling valve is used for closed sampling of media, the whole sampling process is operated in a closed environment, the pollution problem caused by medium leakage can be avoided, the closed sampling valve is particularly suitable for closed sampling of volatile and corrosive media, the cleaning mechanism is arranged and can be used for discharging residual media in the valve body, and the sampling efficiency is improved. According to the closed sampling valve, the problem of corrosion of the sampling valve caused by medium residues is avoided, the sampling mechanism is arranged, sealing connection of the sampling bottle can be facilitated, the leakage problem in the sampling process is prevented, meanwhile, the sampling pipe is plugged after sampling, dust is prevented from entering the sampling pipe to affect subsequent sampling operation, and the subsequent sampling precision of the closed sampling valve is improved.

The application relates to the technical field of sampling devices, and specifically discloses a sampling device for electroplating wastewater, which comprises an adjusting tank, water outlets are communicated with the upper, middle and lower liquid surfaces of the adjusting tank, water valves are arranged at the ends of the water outlets close to the upper, middle and lower liquid surfaces of the adjusting tank, sampling pipes are communicated with the ends of the water outlets away from the adjusting tank, sampling valves are arranged on the sampling pipes, sampling boxes are arranged at the ends of the sampling pipes away from the water outlets, sampling mechanisms are arranged in the sampling boxes, the water valve at the upper liquid surface of the adjusting tank is opened, the sampling valve is opened, the electroplating wastewater can flow into the sampling pipes through the water outlets, the sampling mechanisms can respectively sample the electroplating wastewater at the upper, middle and lower liquid surfaces of the adjusting tank, and the samples can be stored in the sampling boxes, and then the sampling of the middle and lower liquid surfaces is sequentially carried out after the sampling is completed, so that the electroplating wastewater in the adjusting tank is subjected to layered sampling, the accuracy and comprehensiveness of the samples are improved, and the process control accuracy is improved.

The utility model provides a liquid 1-butene vaporization device, and relates to the technical field of chemical raw material quality inspection, the liquid 1-butene vaporization device comprises a sampling steel cylinder, a vaporization chamber, a non-adsorption aluminum foil gas bag and a six-way gas sample injection valve, the device ensures the controllability of the total amount of vaporized sample gas and the consistency of the composition proportion by accurately quantifying a liquid sample, and the liquid 1-butene vaporization device is simple in structure and convenient to operate. By means of complete vaporization of the vaporizing chamber and buffering of the non-adsorption aluminum foil air bag, vaporized sample components are mixed evenly, light and heavy components of a gas sample collected by the six-way gas sample injection valve are distributed evenly, the sample detection accuracy is ensured, the sample cannot be adsorbed in the sampling process, and the sampling efficiency is improved. According to the device, a taken sample can be completely vaporized through the vaporizing chamber, and a completely vaporized gaseous sample can be completely transferred through the arrangement of the one-way valve, so that errors cannot be caused to later detection of the sample, and the problems that in the prior art, a detection result is deviated, and errors are easily caused to later detection of the sample are solved.

A non-propulsive turbomachine (2) for an aircraft (M) fuel conditioning system (Q) comprising: a first compressor (21), a combustion chamber (23) supplied by a first airflow (A1) flowing in a general supply channel (30) connected to the first compressor (21), a second compressor (22) connected to the general supply channel (30) by a first sampling channel (31), so as to be supplied with a second airflow (A2) from the first compressor (21), and to a cabin air conditioning device (6), a single gas turbine (24) connected to both the first compressor (21) and the second compressor (22) by a single turbomachine shaft (25), a second sampling channel (33) connecting the general supply channel (30) and the cabin air conditioning device (6), and at least one sampling valve (4),mounted on the first sampling channel (31) and configured to allow or prevent the circulation of the second airflow (A2) in the sampling channel (31). Abstract figure: Figure 3,

This utility model discloses an anti-oxidation sampling device for the negative electrode electrolyte of a vanadium redox flow battery energy storage system, relating to the field of vanadium redox flow batteries. It includes a three-way pipe, an end cap, and a sampling assembly. The upper and lower ends of the three-way pipe are connected to pipes respectively. A valve for connecting a sampling valve is installed at the top of the upper pipe, and a manual valve is connected to the bottom of the lower pipe. A soft plug is installed in the opening at the left end of the three-way pipe, and a through hole with a diameter smaller than that of the soft plug is opened at the center of the end cap. The end cap is detachably installed at the left end of the three-way pipe. By incorporating a valve, this utility model allows the device to be directly installed at any valve position in the vanadium redox flow battery system, breaking through the dependence of traditional bypass sampling on pipe layout. This enables precise sampling and analysis of local electrolyte within the system, greatly expanding the application range of the sampling device and meeting the needs for electrolyte state assessment in different monitoring scenarios.

The invention discloses an underground fluid in-situ sampling system and method, and belongs to the technical field of underground fluid sampling. The device comprises a sampling valve body, an air pressure driving assembly and a sample receiving assembly, the sampling valve body comprises a valve body, a three-way cavity formed in the valve body and a first one-way valve, the first one-way valve is arranged in a first hole channel of the three-way cavity, and the first one-way valve can be opened by external pressure; the air pressure driving assembly comprises an air supply pipe used for supplying pressurized and compressed air, and the air supply pipe is communicated with the second hole channel of the three-way cavity. The sample receiving assembly comprises a sampling pipe, one end of the sampling pipe is communicated with the third hole channel of the three-way cavity, and the other end of the sampling pipe can output fresh formation fluid. The device can be suitable for long-term deployment in a limited space, and the original state of fluid is kept to the maximum extent.

The utility model discloses a vacuum sampling device of high risk reaction, include: reaction kettle, sampling valve, vacuum system, nitrogen system, sampling bottle, wherein, the reaction kettle with sampling valve connects, nitrogen system with sampling valve connects, sampling valve with sampling bottle connects, vacuum system directly with sampling bottle connects. The utility model relates to equipment less, low in cost, and the transformation is simple. The on -line long -distance sampling of liquid-liquid two -phase high risk reaction can be realized, and sampling safety is high. Can carry out the separation of liquid-liquid two -phase while sampling, and sampling efficiency is high.

The utility model discloses a wear-resistant V-shaped sampling ball valve, and belongs to the technical field of sampling valves. Comprising a valve body, a ball valve element is arranged in the valve body, a valve rod for controlling the ball valve element to rotate is fixedly connected to the ball valve element, a stop rod is fixedly connected to the outer surface of the valve rod, a dial is fixedly connected to the valve body, and a limiting pipe is arranged on the outer surface of the dial in the circumferential direction; the two ends of the limiting pipe are fixedly connected with the dial through connecting blocks, the end, away from the dial, of each connecting block is fixedly connected with the limiting pipe, and the outer surface of each limiting pipe is sleeved with a sleeve. The ball valve does not need to be adjusted back and forth to control the liquid outlet amount, so that the adjustment is more accurate, the liquid outlet amount is prevented from being suddenly large and suddenly small, the probability of solution splashing during sampling is reduced, and the safety of workers is protected.

The sampling valve comprises a valve body, a valve rod, a valve clack and a hand wheel, the valve rod is connected with the valve clack, the valve body is provided with an inlet end and an outlet end, the valve clack and the inlet end form sealing abutting, the hand wheel is connected with the valve rod and arranged outside the valve body, and a reset assembly is arranged between the valve rod and the valve clack. The reset assembly comprises a spring and a supporting sleeve, the valve rod is arranged on the supporting sleeve in a sliding mode, a telescopic groove is formed in the valve clack, the spring is arranged at one end of the supporting sleeve in a sleeving mode, the valve clack is clamped on the supporting sleeve and is in telescopic fit with the spring, and a cleaning assembly is arranged on the valve rod. The utility model aims to provide the sampling valve which has the advantage of no residue, prevents medium residue and avoids the problem of medium pollution in the valve body.

The utility model relates to the field of liquid phase sampling, and discloses a liquid phase sampling device which comprises a liquid phase pipeline and a sampling valve cover, the sampling valve cover is installed and connected to an outer end pipeline of the liquid phase pipeline, the lower end of the sampling valve cover is fixedly connected with an upper side container tank, and a sampling control mechanism is installed in the middle of the lower end of the upper side container tank. According to the sampling device, through the sampling control mechanism structure, the sampling capacity can be correspondingly changed in a lifting mode, when a telescopic rod of a first electric telescopic cylinder of the sampling control mechanism stretches out and draws back, the position of a blocking disc can be changed, the blocking disc is connected into the lower side container tank in a sleeved mode, and therefore the sampling collection capacity in the lower side container tank can be changed; a corrugated telescopic pipe is installed at the upper end of the blocking disc, the blocking disc cannot be hindered in the lifting process due to the telescopic state of the corrugated telescopic pipe in the lifting process, and the first electric telescopic cylinder and the corrugated telescopic pipe are installed and connected to the container tank on the upper side and can be correspondingly installed and placed.

The invention provides a method and a system for automatically and rapidly measuring trace aluminum in cold water in a high-voltage direct-current converter valve. The system comprises a masking reagent bottle, a chromogenic reagent bottle, a buffer reagent bottle, a current-carrying reagent bottle, a water sample bottle, a flow injection analyzer, a multi-channel combination module, a first reaction coil, a second reaction coil, a third reaction coil, a temperature control module and a light splitting detector, the flow injection analyzer comprises a pump A, a pump B, a sampling valve and a sampling ring; the multi-channel combination module is provided with channels A, B and C which are not communicated with one another, and the channels A, B and C are respectively provided with sampling ports a, b and c; the sampling valve is provided with channels f, g, h and i which are not communicated with one another, and the channels f, g, h and i are provided with sampling ports d and e respectively. According to the method and the system provided by the invention, the trace aluminum ions in the cold water in the high-voltage direct-current converter valve can be automatically, quickly, accurately and reliably measured, and the detection limit is 1.0 mu g / L.

The utility model provides a pipeline detection sampling valve which structurally comprises a butt joint pipe, a butt joint hole is formed in the middle of the left side of the butt joint pipe, a sampling pipe is detachably connected to the middle of the left side of the butt joint pipe in a clamped mode, an isolation base is fixedly connected to a feed port in the right end of the sampling pipe through a bolt, and a plug abuts against the middle of the isolation base. When the plug is matched with the conical surface of the isolation seat, liquid in the butt joint pipe cannot flow into the sampling pipe, at the moment, the reset spring on the inner side of the left end of the plug is compressed, the air outlet of the flow channel of the valve rod is exposed, and the air guide hole, the flow channel and the vent hole are communicated. A user can fill an external gas source into the gas guide hole through the quick-release connector, and the end cover is detached from the left side of the sampling pipe, so that the user can conveniently perform high-pressure gas purging treatment on the sampling pipe before sampling, and residual impurities in the sampling pipe are prevented from influencing the sampling result.

The utility model relates to sampling device technical field, concretely is a kind of bromination reaction kettle sampling device, including reaction kettle, the outer wall of the reaction kettle one side is provided with sampling valve, the outer wall of the sampling valve is fixed with the sleeve joint of sealing plate, the outer wall of the reaction kettle one side is provided with fixed plate, the fixed plate is rotatably connected with screw rod on the bearing, the bottom end of the screw rod extends to the bottom end of fixed plate and is provided with handle, the top of the screw rod is screwed with moving cylinder, the top of the moving cylinder is provided with lifting plate, the top of the fixed plate is provided with telescopic cylinder, the inner chamber of the telescopic cylinder is slidably inserted with telescopic rod, the top of the telescopic rod is fixedly connected with the bottom end of lifting plate.The bromination reaction kettle sampling device solves the sampling valve of prior art reaction kettle when using without having the protection structure, sample splashes everywhere in the process of using beaker sampling problem.

The utility model belongs to the technical field of liquid sampling devices, and particularly relates to a concentrated sulfuric acid sampling device which comprises a sulfuric acid pipeline, the sulfuric acid pipeline is connected with a sampling pipe which is communicated with the sulfuric acid pipeline and extends downwards, a sampling valve is arranged on the sampling pipe, and a sampling cover is arranged outside the sampling pipe and the sampling valve. The sampling pipe and the sampling valve are located in a cavity defined by the sampling cover, a sampling window capable of being opened and closed is arranged on the side wall of the sampling cover, and a liquid drainage pipeline is arranged at the bottom of the sampling cover. During sampling, the sampling window is opened, the sampling bottle is placed under the liquid outlet of the sampling tube, and then the sampling valve is opened, so that a sulfuric acid solution can be discharged for sampling. The concentrated sulfuric acid sampling device disclosed by the utility model can reduce the discharge amount of a sulfuric acid solution during sampling, so that not only is resource waste reduced, but also the sampling accuracy is ensured; the sampling device is simple in structure, easy to operate and not prone to splashing to hurt people, harmful gas is not prone to overflowing, and sampling convenience and safety are improved.

The utility model relates to a portable sampling device for a lilial hydrogenation kettle, which belongs to the technical field of organic synthesis and comprises a hydrogenation kettle and a U-shaped sampling tube mounted on the hydrogenation kettle, one end of the sampling tube extends into the inner bottom of the hydrogenation kettle from the top of the hydrogenation kettle, and the other end of the sampling tube is positioned on one side of the outer wall of the hydrogenation kettle. One side, located in the hydrogenation kettle, of the sampling pipe is vertically arranged, transverse branch pipes are connected to different height positions of the sampling pipe respectively, and sampling valves are mounted at the bottom of the sampling pipe and on the transverse branch pipes; one end of the sampling pipe outside the hydrogenation kettle is connected with a plug, and a first valve and a second valve are sequentially and adjacently mounted on one side of the sampling pipe close to the plug. After the hydrogenation reaction is finished, pressure relief is not needed, the materials are sucked out of the hydrogenation kettle into the sampling pipe for sampling by utilizing pressure difference, and the materials with different liquid levels in the hydrogenation kettle can be sampled, so that the sampling accuracy is ensured, convenience and rapidness are realized, the hydrogen consumption is reduced, and the cost is saved.

The utility model relates to the technical field of UHT equipment cleaning, and discloses a UHT equipment cleaning agent adding system which comprises UHT equipment. A balance cylinder; the branch pipe is communicated with the balance cylinder and is provided with a sampling valve; the mixed builder is stored in the medicine storage part; a liquid inlet of the conveying part is communicated with the medicine storage part, a liquid outlet of the conveying part is communicated with the sampling valve, and when the UHT equipment works, the washing assistant is uniformly supplied into the balance cylinder; according to the cleaning agent adding system for the UHT equipment, the builder is directly pumped into the UHT equipment from the sampling valve, the equipment does not need to be shut down, and potential safety hazards are reduced; in the process from cleaning agent adding to circulating cleaning of the UHT equipment, the conveying part evenly and quantitatively pumps the mixed builder into the sampling valve, then the mixed builder flows into the balance cylinder, the builder enters the cleaning circulation along with the cleaning agent, the builder can be fully mixed with cleaning liquid, the conveying process of the builder is smooth and stable, foam generation is greatly reduced, and the service life of the UHT equipment is prolonged. And the cleaning effect is transitioned.

The application relates to the technical field of fuel production, and discloses an automatic sampling device for aviation fuel detection, which comprises a fixing frame, a vertical frame and a support, and a sampling assembly is arranged outside the fixing frame. When base materials and various components of fuel are fully mixed in a blending barrel according to a preset ratio, a metering pump on a mounting plate is started, sample is drawn to a temporary storage tank through a sampling pipe and an elbow pipe, after waiting for a period of time, bubbles in the mixture disappear, a sampling valve on an inclined pipe is used to guide target-dose sample into a constant-temperature sealed conductivity cell, so that the conductivity and the decay rate of the sample can be conveniently detected, automatic sampling and fully-automatic sealed transmission are realized, through the transfer of the temporary storage tank, the influence of bubbles in the mixture on the test result can be eliminated, the sampling valve is used to improve the accurate adjustment of the detection dose, and then the operation reliability and the test accuracy of the equipment are improved.

This invention belongs to the technical field of oilfield production equipment and relates to a digital anti-theft needle valve, including a contact needle and a first micro-switch. The bottom of the contact needle is connected to the trigger end of the first micro-switch, and the upper end of the contact needle passes through a through hole. The top of the contact needle is not lower than the upper opening of the through hole. The bottom of a ball rolls around the upper surface of a step. The upper opening of the through hole is located on the rolling path of the ball. When the handwheel is rotated, causing the ball to roll along the upper surface of the step, the ball will press the top of the contact needle, causing the contact needle to slide downward and press the trigger end of the first micro-switch to issue an alarm. This invention can promptly detect theft by criminals, has a significant deterrent effect, fundamentally solves the problem of sampling valves being easily stolen, and ensures the safety and economic benefits of oilfield crude oil.

The utility model relates to gas water mixing device, including gas water mixing tower, aerator, first valve, first liquid level sensor, second liquid level sensor, shower nozzle, third valve, sampling valve, bypass valve, water tank, fourth valve, water pump, fifth valve and sixth valve, the bottom end inner wall of gas water mixing tower is installed with aerator, the input of aerator is installed with first valve, the outside of gas water mixing tower is installed with first liquid level sensor, the below of first liquid level sensor is installed with second liquid level sensor, the below of gas water mixing tower is installed with water tank, and the between water tank and gas water mixing tower is installed with third valve, this utility model can adjust the water level inside the equipment according to the liquid level in the equipment, avoid the height of liquid level to exceed the bottom of the filler, and can empty the water in the equipment, avoid other to enter the inside of water storage structure, thereby optimize the equipment, make gas water can mix fully.

The utility model discloses a grinding fluid mixing sampling valve box which comprises a box body, a fixing plate is arranged in the box body, a sampling valve is arranged on the front side of the fixing plate through an installation assembly, and sampling pipes are arranged on the upper side and the lower side of the sampling valve. The installation assembly comprises an installation block arranged on the front side of the fixing plate, an installation groove is formed in the front side of the installation block, an installation column is arranged on the surface of the installation groove, and the front side of the installation column is fixedly installed on the rear side of the sampling valve. The sampling valve is fixed to the front side of the fixing plate through a mounting block, a mounting groove, a mounting column and other parts by the mounting assembly, meanwhile, sampling pipes are arranged on the upper side and the lower side of the sampling valve and used for sampling operation, and meanwhile through arrangement of the mounting assembly, the extrusion assembly and the positioning assembly, workers can conveniently disassemble and overhaul the sampling valve.

1. The name of the design product: pneumatic sampling valve. 2. The use of the design product: the design product is used for pulp sampling. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

The utility model relates to the technical field of sampling equipment for chemical production, and discloses an online sampling device for an esterification kettle, which comprises a sampling main pipe rotationally connected with the top wall of the esterification kettle, and the upper end of the sampling main pipe is connected with a vacuum pump through a sampling valve. The lower end of the sampling main pipe extends into the esterification kettle and is connected with a multi-point sampling mechanism in the esterification kettle, the multi-point sampling mechanism comprises a plurality of sampling branch pipes with different lengths, each sampling branch pipe is communicated with a sampling distribution box through a connecting pipe, and the lower end of the sampling main pipe is rotationally connected with the sampling distribution box; sampling ports communicated with the sampling branch pipes in sequence are formed in the side wall of the lower end of the sampling main pipe, and the sampling main pipe is connected with a rotary driving mechanism fixed at the top of the esterification kettle. Multi-point sampling at different depths can be realized, so that the reaction states of materials at different depths in the esterification kettle can be monitored in real time, meanwhile, the self-cleaning function of the sampling system can be realized, and the accuracy and the purity of a sampling result can be ensured.

The utility model relates to a dilution tank for vitamin B12 injection production, which comprises a tank body, a sealing cover installed on the top of the tank body, a liquid inlet arranged on one side of the top of the tank body, a water inlet arranged on the other side of the top of the tank body, a liquid outlet arranged at the bottom of the tank body, a first filter element installed in the liquid inlet and extending into the tank body, a second filter element installed in the liquid outlet, an L-shaped liquid discharge pipe installed at the bottom of the liquid outlet, a corrugated flexible pipe arranged on the vertical section of the liquid discharge pipe, the second filter element arranged in the corrugated flexible pipe, a hanger connected with the liquid discharge pipe arranged at the bottom of the tank body, a safety valve and an ultrasonic liquid level sensor installed on the top of the sealing cover, a temperature sensor arranged on the inner wall of the tank body, a pressure sensor arranged on the bottom of the inner wall, a plurality of sampling valves arranged on one side of the tank body from top to bottom, and magnetic stirrers arranged on both sides of the bottom of the tank body and symmetrical to the liquid outlet. The utility model adds a filtering function, thereby improving the purity and production safety of the liquid medicine.

The utility model relates to the technical field of adhesive preparation, and discloses a safe preparation device for a solvent-free two-component polyurethane adhesive, which comprises a storage tank, a feeding port arranged on the upper wall of the storage tank, a discharging header pipe arranged on the lower wall of the storage tank, and a master control valve arranged on the discharging header pipe; a plurality of mixing tanks are arranged above the storage tank, stirring mixers are arranged in the mixing tanks, feeding branch pipes and discharging branch pipes are arranged on the upper walls and the lower walls of the mixing tanks respectively, the discharging branch pipes are communicated with the feeding ports of the storage tanks, branch control valves are arranged on the discharging branch pipes, sampling pipes are arranged at the lower ends of the side walls of the mixing tanks, and sampling valves are arranged at the sampling pipes. And a pressure control assembly and a nitrogen charging port are arranged above the mixing tank. The utility model has the advantages that explosion-proof protection measures are taken, and dangerous situations are prevented.

The utility model discloses a safety type threaded sampling valve, which belongs to the technical field of fluid sampling equipment and comprises a valve body, a connecting pipe is fixedly communicated with the right side of the valve body, a threaded sleeve is rotatably connected with the outer side of the connecting pipe, a barrel is arranged on the right side of the connecting pipe, and a supporting seat is fixedly mounted at the top of the valve body. The top of an inner cavity of the supporting seat is rotationally connected with a lead screw, the top of the outer side of the lead screw is fixedly sleeved with a worm gear, the right side of the inner cavity of the supporting seat is rotationally connected with a worm matched with the worm gear, the bottom of the lead screw movably penetrates through the supporting seat and extends to an inner cavity of the valve body, and the bottom of the outer side of the lead screw is in threaded connection with a movable frame. A valve element is fixedly installed at the bottom of the movable frame. Raw material leakage in the sampling process is avoided, the working convenience of workers is improved, the self-locking function is achieved, the situation that the valve element moves due to the fact that the flow velocity pressure in the valve body is too large can be prevented, and the practicability of the device is improved.

The utility model discloses a safe and environment-friendly sampling device for acyl chloride products, which comprises an acyl chloride circulating pipeline serving as a main material pipeline and a sampling bypass arranged on the acyl chloride circulating pipeline, and a reducing pipe for throttling is mounted on the acyl chloride circulating pipeline. One end of the sampling bypass is connected with an acyl chloride circulating pipeline arranged on the feeding side of the reducing pipe through a tee joint, the other end of the sampling bypass is connected with an acyl chloride circulating pipeline arranged on the discharging side of the reducing pipe through a tee joint, a feeding valve and a discharging valve are mounted on the sampling bypass, and a sampling valve is mounted on the sampling bypass between the feeding valve and the discharging valve. The reducing pipe is arranged on the main material pipeline, so that the pressure difference of an inlet and an outlet of the bypass is increased, and enough flow of the bypass is ensured; the sampling valve is provided with a self-rebounding valve element, hydrolysis and solidification caused by long-time contact of wall-hung materials at a sampling discharging port and air are avoided, and meanwhile material splashing and leakage caused by accidental touch of a valve rod can be avoided.

The utility model relates to the field of taking sample with pressure relates to a kind of pressure vessel takes sample device, including sampling tube and pressure vessel main body, the right side of the pressure vessel main body is equipped with main valve pipe, first control valve and second control valve are sequentially installed from left to right on the main valve pipe, the bottom end of the main valve pipe is equipped with auxiliary valve pipe, sampling valve is installed on the auxiliary valve pipe, the bottom end of the auxiliary valve pipe is equipped with mounting pipe, the sampling tube is connected with mounting pipe, cooling jacket is installed on the outside of the sampling tube.This pressure vessel takes sample device through first control valve and second control valve on the main valve pipe and sampling valve on the auxiliary valve pipe, the structure of double valve group is used to ensure the stability that sampling can be safely closed, open sampling valve on the auxiliary valve pipe, powder sample in the inside of pressure vessel main body can be into the inside of sampling tube to realize sampling, the structure realizes the function of convenient safety sampling, solves the problem of poor sampling safety.