Gas-liquid split-flow type multifunctional sampling and measuring device and application method thereof
Technical Field
The invention discloses a gas-liquid split-flow type multifunctional sampling and measuring device and a using method thereof, and relates to equipment for liquid sampling and a using method for sampling and measuring by using the equipment.
Background
In many occasions, liquid needs to be sampled, especially in various places for storing oil liquid and liquid chemicals, the representativeness of oil sampling can directly influence the representativeness of oil quality inspection results. In the existing sampler, the diameter of the mouth is different, the sampling speed is different, but sampling and exhausting are the same in sampling, for example, sampling is carried out in a gasoline tank, an empty sampler is opened, a gasoline sample enters the sampler from a sampler port, gas in the sampler is blown out of the sampler port and discharged, and one liter of gasoline sample fed by one liter of sampler is subjected to opposite flushing, blowing and volatilization of one liter of gas. Tests show that the density of a gasoline sample is increased by one to three thousandths through the sampler, and the vapor pressure of the gasoline is lower, so that the problem is that the sampling and measuring density of the gasoline is detected by the sampler, firstly, the sampling is carried out by pouring the gasoline sample into an oil sample bottle, secondly, the density is measured by pouring the gasoline sample into a measuring cylinder from the oil sample bottle, and thirdly, the gasoline sample has the volatilization loss of light components in the three links, and the flash points of jet fuel and diesel oil are higher, so that the judgment on the quality of the oil is often inaccurate, and therefore, a new sampler is necessary to meet the sampling requirement.
Disclosure of Invention
The invention provides a gas-liquid split-type multifunctional sampling and measuring device, which can effectively overcome the defects of the existing equipment, realize accurate sampling without sample fall and volatilization, accurately measure the metering quality results such as metering density of oil liquid and the like, is suitable for accurate sampling of petrochemical liquid and environment-friendly water quality, and has good use and popularization effects.
The gas-liquid split-flow type multifunctional sampling and measuring device comprises a bottle body and a sampling cover above the bottle body, wherein the bottle body is connected with the sampling cover in a sealing manner through threads or buckles.
The sampling cover comprises a circular cover body, a sliding through hole is formed in the center of the cover body, and a circular arc-shaped liquid inlet through groove or a circular arc-shaped liquid inlet through hole is formed in the side face of the sliding through hole; when the liquid inlet through hole is formed, the liquid inlet through hole is provided with a plurality of through holes with the same size, and the through holes are arranged in an arc manner along the center of the cover body, and the arc of the liquid inlet through groove or the liquid inlet through hole is a minor arc; A cover boss is arranged on the periphery of a liquid inlet through groove or a liquid inlet through hole, a liquid inlet control valve is inserted below the cover by taking the sliding through hole as a central shaft sleeve, a partition plate is arranged at the lower end of the liquid inlet control valve, a hollow exhaust channel is arranged in the center of the upper part of the partition plate, when the upper surface tension force of the partition plate is close to the cover boss, the liquid inlet through groove or the liquid inlet through hole is closed, the axial section of the liquid inlet control valve is in an inverted T shape, an inverted T-shaped exhaust control valve is inserted in the exhaust channel, the top end of the exhaust control valve extends out of the exhaust channel and is fixedly connected with a rope control device, the lower end of the rope control device is in threaded connection with the exhaust channel on the liquid inlet control valve through threads, a liquid inlet control valve plate matched with the liquid inlet through groove or the liquid inlet through hole on the cover is sleeved on the upper surface or the lower surface of the cover by taking the sliding through hole as an axle center, a plurality of circular arc-shaped through holes which correspond to the liquid inlet through groove or the liquid inlet through hole are arranged on the liquid inlet control valve plate, when the liquid inlet through groove is arranged on the cover, the liquid inlet control valve plate is in the shape, the liquid inlet through groove corresponding to the circular arc-shaped through groove or the liquid inlet through hole is arranged on the cover, and the liquid inlet control valve can rotate, and the liquid inlet through hole can be controlled by the speed on the valve plate.
When the liquid inlet control valve plate is arranged below the cover body, the liquid inlet control valve plate is arranged between the cover body and the partition plate of the liquid inlet control valve.
The top at the bottle still has the bottle boss with the baffle matched with of feed liquor control valve, when the lower surface of baffle contacted with the bottle boss under the action of gravity, the baffle can play sealed effect, sealed bottle boss top sample liquid.
A strip-shaped liquid inlet groove or a continuous liquid inlet hole is formed in the side face of the bottom of the boss of the bottle body, sample liquid flows in along the wall of the bottle body through the liquid inlet groove or the liquid inlet hole, impact force during inflow is relieved, splashed liquid drops are prevented from being generated, and sampling precision is affected.
The rope control device comprises a rope hook, a pipe cap, a spring sleeve, a push rod and a locking pipe, wherein a hook groove with a hook-shaped opening in axial section is formed in the middle of the spring sleeve, the pipe cap is installed at the upper end of the spring sleeve, a spring is arranged in a cavity of the spring sleeve, one end of the spring is propped against the inner wall of the pipe cap, the other end of the spring pushes against the K-shaped push rod, an exhaust control valve is fixedly connected to the tail end of the K-shaped push rod and is fixed by a side screw, the rope hook enters the hook groove in a state that the exhaust control valve is closed, is clamped in the middle of the K-shaped push rod, the locking pipe is arranged at the lower part of the opening of the spring sleeve, the upper adjusting locking pipe can block the unhooking of the rope hook, the tail end of the spring sleeve is connected with the liquid inlet control valve through threads and is fixed by the side screw, the spring sleeve is communicated with the exhaust pipe, and the top end of the rope hook penetrates through the pipe cap and is connected with a sampling rope.
The bottom of the K-shaped ejector rod is provided with a groove for assisting in exhausting, so that the gas in the bottle body can be conveniently and rapidly exhausted.
The bottle be cylindrical bottle, further, the bottle by cylindrical bottle and disk form bottle end sealing connection form, the bottle end adopt nickel alloy, it is compared in stainless steel, can not produce the reaction with fluid for the fluid is rotten after long-time storage.
The bottle body and the sampling cover are preferably connected in a threaded sealing way.
The invention can also replace the sampling cover by the sealing cover to store the sample liquid in the bottle body in a sealing way.
The sealing cover is provided with an upper cover, the middle part of the upper cover is provided with a threaded hole, the upper surface of the upper cover is screwed with an adjusting knob through the threaded hole, a hard plate is filled in the sealing cover, and a sealing ring is tightly attached to the lower part of the hard plate.
The bottle body is made of transparent materials, is preferably glass, is further preferably toughened glass, and can effectively prevent external impact and bear the extrusion of sample liquid to the bottle body and prevent deformation.
The gas-liquid split-flow type multifunctional sampling and measuring device has the functions of liquid sampling, sealed storage of samples, liquid density and temperature measurement.
The liquid sampling comprises sampling a bottom sample, sampling a sample and sampling a whole course;
The method for taking liquid bottom samples and sample application by utilizing the gas-liquid split-flow type multifunctional sampling and measuring device comprises the following steps:
the cover body fixedly provided with the rope control device is connected with the bottle body in a sealing way;
rotating the liquid inlet control valve plate to a preset position according to the liquid inlet speed requirement;
The rope hook is clamped into the K-shaped ejector rod, and the rope hook and the K-shaped ejector rod are in a locking state;
the portable sampling rope is utilized, and the gas-liquid split-type multifunctional sampling measuring device is stably placed in a container to be sampled;
after the sampling measuring device is lowered to a preset depth, rapidly lifting the sampling rope for a certain distance, lowering the sampling rope to a original position, pushing the K-shaped ejector rod to move downwards by using a spring in the spring sleeve, and popping up and unlocking the rope hook;
The liquid inlet control valve moves downwards under the action of gravity to separate from the cover boss, is tightly attached to the sealed bottle boss, and simultaneously, the exhaust control valve moves downwards to open the exhaust channel, sample liquid enters through the liquid inlet through groove or the liquid inlet through hole on the side surface of the sliding through hole, and smoothly flows into the strip-shaped liquid inlet groove or the continuous liquid inlet hole on the side surface of the bottle boss along the partition plate on the liquid inlet control valve, and the sample liquid flows in along the bottle wall of the bottle through the liquid inlet groove or the liquid inlet hole to slow down the impact force during inflow;
The gas to be discharged in the bottle body is discharged through the exhaust through pipe at the center of the partition plate, and the gas is further discharged upwards through the gap in the spring sleeve;
After the gas is completely discharged and the bottle body is filled with sample liquid, the sampling rope is lifted and the sampling container is lifted.
A method for taking a whole-course sample by a gas-liquid split-flow type multifunctional sampling and measuring device comprises the following steps:
the sampling cover fixedly provided with the rope control device is connected with the bottle body in a sealing way;
according to the requirement of the speed of liquid inlet, rotating an adjusting groove formed on a liquid inlet adjusting plate to a preset position;
the rope hook is clamped into the K-shaped ejector rod, the rope hook and the K-shaped ejector rod are in a locking state, and the locking pipe is adjusted downwards to keep the hook groove normally open;
The sampling rope is extracted by hands, and the gas-liquid split-flow type multifunctional liquid sampler is stably placed in a container to be sampled;
after the sampler is lowered to a depth close to the bottom of the container, rapidly lifting the sampling rope for a certain distance, lowering the sampling rope to a original position, pushing the K-shaped ejector rod to move downwards by using a spring in the spring sleeve, and popping up and unlocking the rope hook;
The through hole shaft moves downwards under the action of gravity, the liquid inlet control valve plate descends, the liquid inlet channel I and the exhaust chamber are opened, sample liquid enters through the liquid inlet channel I on the cover body and smoothly flows in along the drainage disc, and the sample liquid slowly flows in along the bottle wall of the bottle body through the liquid inlet groove or the liquid inlet hole on the drainage disc, so that the impact force during inflow is slowed down;
the gas to be discharged in the bottle body is discharged through the exhaust through pipe of the through hole shaft, and the gas is further discharged upwards through the gap in the spring sleeve;
When the bottle body is subjected to liquid feeding and air discharging, the sampling rope is lifted upwards at a constant speed, the container to be sampled is directly lifted out completely, and when the container is completely taken out, the bottle body cannot be filled with the sample liquid injected into the bottle body (if the bottle body is full, the sampling of the whole layer of sample is failed, and the sampling rope is required to be resampled until the bottle body is not filled with the sample liquid).
The method for sealing and storing the sample by using the gas-liquid split-flow type multifunctional sampling and measuring device comprises the following steps:
Taking down the sampling cover in the gas-liquid split-type multifunctional sampling and measuring device for sampling the liquid sample, replacing the sealing cover, connecting the sealing cover with the bottle body, rotating the adjusting knob of the sealing cover downwards, and ejecting the hard plate downwards for a certain distance to enable the hard plate to press the bottle body.
When the liquid sample in the storage is required to be taken out, the adjusting knob of the sealing cover is firstly rotated upwards, the hard plate is loosened upwards for a certain distance, and then the sealing cover can be easily unscrewed and the sample liquid can be taken out.
The method for testing the density or temperature of the stored sample in the bottle body by using the gas-liquid split-flow type multifunctional sampling and measuring device comprises the following steps:
And opening the bottle body containing the sample liquid, and putting the bottle body into a glass densimeter.
When the temperature needs to be measured, the glass thermometer is put into the glass thermometer.
The gas-liquid split-type multifunctional sampling and measuring device is ingenious in conception, convenient to use, good in use and detection effect, and has multiple purposes through different state settings, and good in use flexibility and application popularization value.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of a gas-liquid split-type multifunctional sampling and measuring device according to the present invention.
Fig. 2 is a schematic structural diagram of a sampling cover and a rope control device in the gas-liquid split-type multifunctional sampling and measuring device of the invention.
Fig. 3 is a schematic cross-sectional structure of a sampling cap in the gas-liquid split-flow type multifunctional sampling and measuring device of the present invention.
Fig. 4 is a schematic top view of a sampling cover in the gas-liquid split-type multifunctional sampling and measuring device according to the present invention.
Fig. 5 is a schematic structural diagram of a liquid inlet control valve plate in the gas-liquid split-type multifunctional sampling and measuring device of the invention.
FIG. 6 is a schematic cross-sectional view of a seal cover in a gas-liquid split-flow type multifunctional sampling measurement device according to the present invention.
Detailed Description
The invention is described in further detail below with reference to fig. 1-6.
Referring to fig. 1, the gas-liquid split-type multifunctional sampling and measuring device comprises a bottle body 1 and a sampling cover above the bottle body 1, wherein the bottle body 1 and the sampling cover are connected through threads or a buckle seal.
The sampling cover comprises a circular cover body 2, a sliding through hole 3 is formed in the center of the cover body 2, and a circular arc-shaped liquid inlet through groove or liquid inlet through hole 4 is formed in the side face of the sliding through hole 3; when the liquid inlet through hole is formed, the liquid inlet through hole is provided with a plurality of through holes with the same size, and the through holes are arranged in an arc manner along the center of the cover body, and the arc of the liquid inlet through groove or the liquid inlet through hole is a minor arc; the periphery of the liquid inlet through groove or the liquid inlet through hole 4 is provided with a cover boss 2-1, a liquid inlet control valve 5 is inserted below the cover 2 by taking the sliding through hole 3 as a central shaft sleeve, the lower end of the liquid inlet control valve 5 is provided with a partition plate 5-1, a hollow exhaust passage 5-2 is arranged at the center above the partition plate 5-1, when the upper surface of the partition plate 5-1 is tightly adhered to the cover boss 2-1 upwards by tension force, the liquid inlet through groove or the liquid inlet through hole 4 is closed, the axial section of the liquid inlet control valve 5 is in an inverted T shape, an inverted T-shaped exhaust control valve 6 is inserted in the exhaust passage 5-2, the top end of the exhaust control valve 6 extends out of the exhaust passage 5-2 and is fixedly connected with a rope control device, the lower end of the rope control device is in threaded connection with the exhaust passage 5-2 on the liquid inlet control valve 5 through threads, a liquid inlet control valve plate 7 matched with the liquid inlet through groove or the liquid inlet through hole 2-1 on the cover 2 is sleeved on the upper surface or the lower surface of the cover 2 by taking the sliding through hole 3 as an axle center, the liquid inlet control valve plate 7 is arranged on the cover 2 in a circular arc shape corresponding to the size of the liquid inlet through hole 7 on the cover plate 7 when the liquid inlet control valve plate 2 is in a circular arc shape, the liquid inlet control valve plate 7 is arranged in a circular shape corresponding to the size of the liquid inlet through hole 7 on the valve plate is arranged in a circular shape, the closing degree of the liquid inlet through groove or the liquid inlet through hole on the cover body 2 can be effectively controlled, so that the liquid inlet speed is controlled.
When the liquid inlet control valve plate 7 is arranged below the cover body 2, the liquid inlet control valve plate 7 is arranged between the cover body 2 and the partition plate 5-1 of the liquid inlet control valve 5.
The upper part of the bottle body 1 is also provided with a bottle body boss 1-1 matched with a baffle plate 5-1 of the liquid inlet control valve 5, and when the lower surface of the baffle plate 5-1 contacts with the bottle body boss 1-1 under the action of gravity, the baffle plate 5-1 can play a role in sealing, so as to seal sample liquid in the bottle body boss 1-1.
A strip-shaped liquid inlet groove 1-2 or a continuous liquid inlet hole is formed in the side face of the bottom of the bottle body boss 1-1, sample liquid flows in along the bottle wall of the bottle body 1 through the liquid inlet groove 1-2 or the liquid inlet hole, impact force during inflow is relieved, splashing liquid drops are prevented from being generated, and sampling precision is affected.
The rope control device comprises a rope hook 11, a pipe cap 12, a spring 13, a spring sleeve 14, a K-shaped ejector rod 18 and a lock tube 16, wherein a hook groove 17 with a hook-shaped opening in axial section is formed in the middle of the spring sleeve 14, the pipe cap 12 is arranged at the upper end of the spring sleeve 14, the spring 13 is arranged in a cavity of the spring sleeve 14, one end of the spring 13 abuts against the inner wall of the pipe cap 12, the other end of the spring 13 pushes the K-shaped ejector rod 18, an exhaust control valve 6 is fixedly connected to the tail end of the K-shaped ejector rod 18 through a side screw 18-2, the rope hook 11 enters the hook groove 17 and is clamped in the middle of the K-shaped ejector rod 18 when the exhaust control valve 6 is closed, the lock tube 16 is arranged at the lower part of the opening of the spring sleeve 14, the lock tube 16 can block the rope hook 11 from unhooking, the tail end of the spring sleeve 14 is connected with the liquid inlet control valve 5 through threads and is fixed through the side screw 5-3, the top end of the rope hook 11 is communicated with an exhaust pipe 12, and a sampling rope 19 is connected to the tail end of the rope.
The bottom of the K-shaped ejector rod 18 is provided with a groove 18-1 for assisting in exhausting, so that the gas in the bottle body 1 can be conveniently and rapidly exhausted.
The bottle body 1 be cylindrical bottle, further, bottle 1 by cylindrical bottle and round slice bottle end 20 sealing connection form, bottle end 20 adopt nickel alloy, it is compared in the stainless steel, can not produce the reaction with fluid for the fluid is rotten after long-time storage.
The bottle body 1 and the sampling cover are preferably connected in a threaded sealing way.
The invention can also replace the sampling cover by the sealing cover to store the sample liquid in the bottle body 1 in a sealing way.
The sealing cover is provided with an upper cover 9, a threaded hole is formed in the middle of the upper cover 9, an adjusting knob 10 is screwed on the upper surface of the upper cover 9 through the threaded hole, a hard plate 8 is padded in the sealing cover, and a sealing ring 21 is tightly attached to the lower side of the hard plate 8.
The bottle body 1 is made of transparent materials, is preferably glass, is more preferably toughened glass, and can effectively prevent external impact and bear the extrusion of sample liquid to the bottle body and prevent deformation.
The gas-liquid split-flow type multifunctional sampling and measuring device has the functions of liquid sampling, sealed storage of samples, liquid density and temperature measurement.
The method for sampling liquid by using the gas-liquid split-flow type multifunctional sampling and measuring device comprises the following steps:
the cover body 2 fixedly provided with the rope control device is connected with the bottle body 1 in a sealing way;
according to the requirement of the speed of liquid feeding, the liquid feeding control valve plate 7 is rotated to a preset position;
the rope hook 11 is clamped into the K-shaped ejector rod 18, and the rope hook 11 and the K-shaped ejector rod 18 are in a locking state;
the portable sampling rope 19 is utilized, and the gas-liquid split-type multifunctional sampling measuring device is stably placed in a container to be sampled;
After the sampling measuring device is lowered to a preset depth, rapidly lifting the sampling rope 19 for a certain distance, lowering the sampling rope to a original position, pushing the K-shaped ejector rod 18 to move downwards by using the spring 13 in the spring sleeve 14, and popping up and unlocking the rope hook 11;
The liquid inlet control valve 5 moves downwards under the action of gravity to separate from the cover boss 2-1, the bottle boss 1-1 is tightly sealed, the exhaust control valve 6 descends, the exhaust channel 5-2 is opened, sample liquid enters through the liquid inlet through groove or the liquid inlet through hole 4 on the side surface of the sliding through hole 3, and smoothly flows into the strip-shaped liquid inlet groove 1-2 or continuous liquid inlet holes on the side surface of the bottle boss 1-1 along the partition plate 5-1 on the liquid inlet control valve 5, and the sample liquid flows in along the bottle wall of the bottle 1 through the liquid inlet groove 1-2 or the liquid inlet holes, so that the impact force during inflow is slowed down;
The gas to be discharged in the bottle body 1 is discharged through the exhaust pipe 5-2 at the center of the baffle plate 5-1, and the gas is further discharged upwards through the gap in the spring sleeve 14;
after the gas is completely discharged and the bottle body 1 is filled with sample liquid, the sampling rope 19 is lifted up, and the sampling container is lifted up.
The liquid sampling comprises sampling a bottom sample, sampling a sample and sampling a whole course;
The method for taking liquid bottom samples and sample application by utilizing the gas-liquid split-flow type multifunctional sampling and measuring device comprises the following steps:
the sampling cover fixedly provided with the rope control device is connected with the bottle body in a sealing way;
according to the requirement of the speed of liquid inlet, rotating an adjusting groove formed on a liquid inlet adjusting plate to a preset position;
the rope hook is clamped into the K-shaped ejector rod, the rope hook and the K-shaped ejector rod are in a locking state, and the locking pipe is adjusted downwards to keep the hook groove normally open;
The sampling rope is extracted by hands, and the gas-liquid split-flow type multifunctional liquid sampler is stably placed in a container to be sampled;
after the sampler is lowered to a depth close to the bottom of the container, rapidly lifting the sampling rope for a certain distance, lowering the sampling rope to a original position, pushing the K-shaped ejector rod to move downwards by using a spring in the spring sleeve, and popping up and unlocking the rope hook;
The through hole shaft moves downwards under the action of gravity, the liquid inlet control valve plate descends, the liquid inlet channel I and the exhaust chamber are opened, sample liquid enters through the liquid inlet channel I on the cover body and smoothly flows in along the drainage disc, and the sample liquid slowly flows in along the bottle wall of the bottle body through the liquid inlet groove or the liquid inlet hole on the drainage disc, so that the impact force during inflow is slowed down;
the gas to be discharged in the bottle body is discharged through the exhaust through pipe of the through hole shaft, and the gas is further discharged upwards through the gap in the spring sleeve;
When the bottle body is subjected to liquid feeding and air discharging, the sampling rope is lifted upwards at a constant speed, the container to be sampled is directly lifted out completely, and when the container is completely taken out, the bottle body cannot be filled with the sample liquid injected into the bottle body (if the bottle body is full, the sampling of the whole layer of sample is failed, and the sampling rope is required to be resampled until the bottle body is not filled with the sample liquid).
The method for sealing and storing the sample by using the gas-liquid split-flow type multifunctional sampling and measuring device comprises the following steps:
taking down the sampling cover in the gas-liquid split-type multifunctional sampling and measuring device for sampling the liquid sample, replacing the sealing cover 9, connecting the sealing cover with the bottle body 1, rotating the adjusting knob 10 of the sealing cover downwards, and ejecting the hard plate 8 downwards for a certain distance to enable the hard plate 8 to press the bottle body 1.
When the liquid sample in the storage is required to be taken out, the adjusting knob 10 of the sealing cover is firstly rotated upwards, the hard plate 8 is loosened upwards for a certain distance, and the sealing cover can be easily unscrewed and the sample liquid can be taken out.
The method for testing the density or temperature of the stored sample in the bottle body by using the gas-liquid split-flow type multifunctional sampling and measuring device comprises the following steps:
and opening the bottle body 1 containing the sample liquid, and putting the bottle body into a glass densimeter.
When the temperature needs to be measured, the glass thermometer is put into the glass thermometer.