Chemical engineering sampler

Abstract

The utility model relates to a sampler, in particular to a chemical engineering sampler which comprises a sampling hollow pipe, a segmentation block, a hollow ejector rod, an elastic piece I and the like, the sampling hollow pipe is a main body for chemical engineering sampling, a plurality of segmentation blocks are fixedly arranged in the sampling hollow pipe at equal intervals, the sampling hollow pipe is divided into a plurality of sections of same sealed separation spaces by the segmentation blocks, the middle parts of the segmentation blocks are connected with hollow ejector rods in a sealed and sliding manner, and the hollow ejector rods are positioned in the sampling hollow pipe. And an elastic piece I is arranged between the top end of the hollow ejector rod and the segmented block on the uppermost layer. According to the utility model, the sampling hollow pipe is divided into a plurality of sections of liquid taking spaces with different depths by the segmentation blocks, and then the sampling hollow pipe is matched with the hollow ejector rod, so that the liquid inlet pipes in different compartments are synchronously opened when the sampling hollow pipe is inserted into an oil drum, thereby realizing stratified sampling and avoiding mutual mixing at the same time.

Description

Technical Field

[0001] The utility model relates to a sampler, in particular to a chemical engineering sampler. Background Art

[0002] Chemical sampling refers to the process of collecting small amounts of samples in accordance with predetermined procedures and methods at various stages of chemical production, research and development, and quality control, from raw materials, intermediates to final products. This process is essential for evaluating product quality, monitoring the stability of the production process, and ensuring that products meet specifications and safety regulations. Therefore, efficient and accurate chemical engineering samplers will be a powerful assistant in chemical production.

[0003] Traditional chemical engineering sampling mostly relies on direct extraction or salvage. When these methods are used to process liquid chemical raw materials such as oils with obvious stratification characteristics, the samples taken out are often a mixture of samples, which affects the accurate evaluation of the properties of each layer and cannot effectively distinguish and analyze the samples of each layer separately. Therefore, a chemical engineering sampler is designed to solve the above problems and realize accurate and independent sampling of different density or composition layers in oil liquids to meet the needs of high-precision component analysis and quality control. Utility Model Content

[0004] In order to overcome the shortcomings of different layers of liquids being easily mixed and unable to effectively distinguish and analyze samples of each layer separately in the sampling of oil liquids in traditional chemical engineering, the utility model provides a chemical engineering sampler capable of sampling oil liquids in layers.

[0005] The technical implementation scheme of the utility model is: a chemical engineering sampler, comprising a sampling hollow tube, a segmented block, a hollow mandrel, an elastic member, a segmented base and a liquid inlet assembly, wherein the sampling hollow tube is the main body of chemical sampling, a plurality of segmented blocks are fixedly arranged at equal intervals inside the sampling hollow tube, the segmented blocks divide the sampling hollow tube into a plurality of identical sealed separation spaces, the middle of the segmented blocks are sealed and slidably connected with a hollow mandrel, the hollow mandrel is located inside the sampling hollow tube, and the top of the hollow mandrel is connected to the uppermost layer. An elastic member is provided between the segmented blocks, and the lower end of the hollow push rod is initially exposed at the bottom of the sampling hollow tube, a segmented base is fixedly installed between the sampling hollow tube and every two adjacent segmented blocks, the hollow push rod seals and slides through each segmented base, and a liquid inlet is opened at the tube wall of the sampling hollow tube corresponding to each section of the separation space, a liquid inlet assembly is provided between the segmented base and the segmented block therebelow, the liquid inlet assembly is used to control the opening and closing of the sampling, and the liquid inlet assembly is respectively adapted to each of the liquid inlets.

[0006] More preferably, the liquid inlet assembly includes a liquid inlet pipe, a circular hole disk, a plug, a connecting slide rod, a spline slide rod, an elastic member 2, a wedge block and a fixing rod, the segmented base and the corresponding liquid inlet are connected with a liquid inlet pipe, the inner tube wall of the lower section of the liquid inlet pipe is provided with a circular hole disk, the circular hole disk has a circle of openings circumferentially, the inner side of the circular hole disk is centrally fixedly connected with a spline slide rod, the outer curved tube wall of the liquid inlet pipe is slidably penetrated by a connecting slide rod, the outer side of the connecting slide rod located in the liquid inlet pipe is fixedly connected with a plurality of plugs, the plugs are circumferentially surrounded and are respectively embedded in the openings of the circular hole disk. The end of the connecting slide rod located in the liquid inlet pipe is a hollow structure, and the connecting slide rod is slidably connected to the spline slide rod through the hollow structure, and two elastic members are provided between the connecting slide rod and the spline slide rod, and the outer end of the connecting slide rod is fixedly connected to a fixing rod, and the hollow top rod seal is provided with a wedge block at the section block, and the wedge block is used to adapt to and squeeze the adjacent fixing rod above it, and after the wedge block moves up and squeezes the fixing rod, the connecting slide rod will slide inward to open the plug blocking the circular hole disk, and the oil liquid of different depths in the oil barrel flows from the liquid inlet pipe into the sampling hollow tube at the corresponding position.

[0007] More preferably, a sealing ring is provided inside the segment block, and the sealing ring is located at the sliding connection between the hollow top rod and the segment block. When the hollow top rod and the segment block slide relatively, the sealing between the upper and lower separation spaces of the segment block is achieved.

[0008] More preferably, it also includes a hollow cover and a handle. The upper end of the sampling hollow tube is connected to the hollow cover. The hollow cover covers the opening of the oil drum during sampling to reduce the volatilization of the oil liquid during sampling. The top side of the hollow cover is fixed with a handle.

[0009] More preferably, it also includes a rubber expansion sleeve and a scraper. The rubber expansion sleeve is installed on the inner top side of the hollow cover, and initially the rubber expansion sleeve covers the entire outer wall of the root sampling hollow tube. A scraper is provided at the end of the rubber expansion sleeve. The scraper is annularly slidably fitted on the outer wall of the sampling hollow tube. The scraper is used to scrape off the sampling liquid remaining on the outer wall of the sampling hollow tube after sampling.

[0010] More preferably, it also includes a screw, a plunger and a sealing plate, the top of the hollow push rod is threadedly connected to the screw, the screw passes through the hollow structure of the hollow push rod, the lower end of the screw is fixedly connected to the plunger, the plunger and the hollow push rod form a piston structure, a sealing plate is slidably arranged between each segment block and the adjacent segment base thereunder, the sealing plate seals and slides between the tube wall of the sampling hollow tube and the hollow push rod, an air outlet is opened on the side wall of the hollow push rod located between two adjacent segment blocks, and the air outlet is higher than the corresponding sealing plate in the same separation space.

[0011] More preferably, a through opening is opened in the middle of the handle, and the screw rod corresponds to the position of the through opening. When the screw rod is screwed and adjusted to the highest point, it can extend into the through opening.

[0012] 1. The utility model divides the sampling hollow tube into multiple liquid sampling spaces of different depths by means of segment blocks, and then cooperates with the hollow ejector rod to make the liquid inlet pipes of different compartments open synchronously when the sampling hollow tube is inserted into the oil drum, thereby realizing layered sampling and avoiding mutual mixing.

[0013] 2. The utility model can adjust the interval between the segmented base and the sealing plate through a screw rod to meet the sampling needs of different capacities and prevent excessive sampling from causing waste of chemical raw materials.

[0014] 3. Compared with traditional industrial sampling, the utility model reduces the volatilization of chemical raw materials in the oil barrel by covering the opening of the oil barrel with a hollow cover during chemical sampling. At the same time, when the sampling hollow tube is pulled out after sampling, the compression elastic force of the rubber telescopic sleeve is used to push the scraper down, so that the residue on the outer wall of the sampling hollow tube can be scraped back into the oil barrel, further reducing the loss of chemical raw materials during sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model for inserting an oil drum for sampling.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of the components such as the sampling hollow tube and the hollow cover of the utility model.

[0017] Figure 3 It is a cross-sectional view of the components such as the sampling hollow tube and the hollow mandrel of the utility model.

[0018] Figure 4 It is a cross-sectional view of the components such as the segmented block, the elastic member 1 and the segmented base of the utility model.

[0019] Figure 5 It is a three-dimensional structural schematic diagram of the segmented block, the segmented base and the liquid inlet pipe of the utility model.

[0020] Figure 6 It is a cross-sectional view of the internal structure of the liquid inlet pipe of the utility model.

[0021] Figure 7 It is a three-dimensional structural schematic diagram of the screw, plunger, sealing plate, air outlet and other components of the utility model.

[0022] The meanings of the reference numerals in the figure are as follows: 1. Sampling hollow tube, 100. Oil drum, 2. Hollow push rod, 201. Segmented block, 202. Elastic part one, 3. Segmented base, 301. Liquid inlet pipe, 302. Round hole plate, 303. Plug, 304. Connecting slide rod, 305. Spline slide rod, 306. Elastic part two, 307. Wedge block, 308. Fixed rod, 4. Rubber telescopic sleeve, 401. Scraper, 5. Hollow cover, 501. Handle, 6. Screw, 601. Plunger, 602. Sealing plate, 603. Air outlet, 7. Sealing ring. DETAILED DESCRIPTION

[0023] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0024] Embodiment: A chemical engineering sampler, such as Figure 1-Figure 4 As shown, it includes a sampling hollow tube 1, a segment block 201, a hollow mandrel 2, an elastic member 202, a segment base 3 and a liquid inlet assembly. The sampling hollow tube 1 is the main body of chemical sampling. A plurality of segment blocks 201 are fixedly arranged at equal intervals inside the sampling hollow tube 1. The segment blocks 201 divide the sampling hollow tube 1 into a plurality of identical sealed separation spaces. The middle of the segment blocks 201 are all sealed and slidably connected with a hollow mandrel 2. The hollow mandrel 2 is located inside the sampling hollow tube 1. An elastic member 202 is arranged between the top of the hollow mandrel 2 and the uppermost segment block 201, and the hollow mandrel 2 is initially The lower end is exposed at the bottom of the sampling hollow tube 1. A segmented base 3 is fixedly installed between the sampling hollow tube 1 and every two adjacent segmented blocks 201. The hollow top rod 2 seals and slides through each segmented base 3. A liquid inlet is opened at the tube wall of the sampling hollow tube 1 corresponding to each segment of the separation space. A liquid inlet component is arranged between the segmented base 3 and the segmented block 201 therebelow. The liquid inlet component is respectively adapted to each of the liquid inlets. The sampling liquid flows through the liquid inlet through the liquid inlet and then flows into the sampling hollow tube 1, thereby preventing the stratified sampling liquids from mixing with each other and realizing stratified sampling of oil liquids of different depths.

[0025] like Figure 4-Figure 6As shown, the liquid inlet component includes a liquid inlet pipe 301, a circular hole disk 302, a plug 303, a connecting slide rod 304, a spline slide rod 305, an elastic member 306, a wedge block 307 and a fixing rod 308. The segmented base 3 and the corresponding liquid inlet are connected with a liquid inlet pipe 301. The inner tube wall of the lower section of the liquid inlet pipe 301 is provided with a circular hole disk 302. The circular hole disk 302 is circumferentially opened with a circle of openings. The inner side of the circular hole disk 302 is centrally fixedly connected with a spline slide rod 305. The outer curved tube wall of the liquid inlet pipe 301 is slidably penetrated by a connecting slide rod 304. The outer side of the end of the connecting slide rod 304 located in the liquid inlet pipe 301 is fixedly connected with a plurality of plugs 303. The plugs 303 are circumferentially surrounded and are respectively embedded and matched with the openings of the circular hole disk 302. The end portion located in the liquid inlet pipe 301 is a hollow structure, and the connecting slide rod 304 is slidably connected with the spline slide rod 305 through the hollow structure. An elastic member 306 is provided between the connecting slide rod 304 and the spline slide rod 305. The outer end portion of the connecting slide rod 304 is fixedly connected with a fixing rod 308. The hollow top rod 2 is provided with a wedge block 307 at the sealing penetration section block 201. The wedge block 307 is used to adapt to and squeeze the fixing rod 308 adjacent thereto. After the wedge block 307 moves upward and squeezes the fixing rod 308, the connecting slide rod 304 will slide inward to open the plug 303 blocking the circular hole disk 302, and the oil liquids of different depths in the oil barrel 100 flow from the liquid inlet pipe 301 into the sampling hollow tube 1 at the corresponding position, thereby realizing the separated sampling of oil liquids of different depths.

[0026] like Figure 4 As shown, a sealing ring 7 is provided inside the segment block 201, and the sealing ring 7 is located at the sliding connection between the hollow top rod 2 and the segment block 201. When the hollow top rod 2 and the segment block 201 slide relative to each other, the sealing between the upper and lower separation spaces of the segment block 201 is achieved. It also includes a hollow cover 5 and a handle 501. The upper end of the sampling hollow tube 1 is connected to the hollow cover 5, and the hollow cover 5 covers the opening of the oil barrel 100 during sampling to reduce the volatilization of the oil liquid during sampling. The top side of the hollow cover 5 is fixedly connected to the handle 501, and a through opening is opened in the middle of the handle 501. The screw 6 corresponds to the position of the through opening. When the screw 6 is turned and adjusted to the highest point, it can extend into the through opening.

[0027] like Figure 4 and Figure 7As shown, it also includes a screw 6, a plunger 601 and a sealing plate 602. The top of the hollow top rod 2 is threadedly connected with the screw 6, and the screw 6 passes through the hollow structure of the hollow top rod 2. The lower end of the screw 6 is fixedly connected with the plunger 601. The plunger 601 and the hollow top rod 2 form a piston structure. A sealing plate 602 is slidably arranged between each segment block 201 and the adjacent segment base 3 therebelow. The sealing plate 602 slides sealingly between the tube wall of the sampling hollow tube 1 and the hollow top rod 2. An air outlet 603 is opened on the side wall of the hollow top rod 2 located between two adjacent segment blocks 201, and the air outlet 603 is higher than the corresponding sealing plate 602 in the same separation space.

[0028] When it is necessary to sample oil liquid in layers, the sampler can be used. Before use, according to the volume of the sampled liquid required, the screw 6 can be turned, and the screw 6 can drive the plunger 601 at its end to slide downward under the action of the thread. At this time, the plunger 601 moving downward will compress the gas inside the hollow push rod 2. After passing through the air outlet 603 in each separation space, the compressed gas enters the space between the adjacent segmented blocks 201 and the sealing plate 602, thereby increasing the air pressure between the adjacent segmented blocks 201 and the sealing plate 602. The filled gas will press the sealing plate 602 downward, thereby changing the size of the liquid sampling space between the sealing plate 602 and the segmented base 3. When the liquid sampling space is adjusted to a suitable size, the operator can use the handheld handle 501 to insert the sampling hollow tube 1 into the oil barrel 100 that needs to be sampled. When the lower end of the sampling hollow tube 1 is about to reach the bottom of the oil barrel 100, the lower end of the hollow push rod 2 The end will be squeezed by the bottom of the oil drum 100 before the sampling hollow tube 1. After being squeezed, the hollow push rod 2 will overcome the elastic force of the elastic member 202 and slide upward. Under the action of the sealing ring 7, the sampling hollow tube 1 and the hollow push rod 2 can slide relatively sealed. At this time, the upwardly moved hollow push rod 2 will drive the wedge block 307 in each segmented space to move upward, and the upwardly moved wedge block 307 will squeeze the corresponding fixed rod 308 of each layer upward. The squeezed fixed rod 308 will drive the connecting slide rod 304 to slide inward along the inclination of the wedge block 307, and overcome the elastic force of the elastic member 306 to drive the plug 303 to slide inward synchronously. After the inwardly sliding plug 303 no longer blocks the opening on the circular hole disk 302, the sampling liquid of different depths in the oil drum 100 will flow into the liquid sampling space between the segmented base 3 and the sealing plate 602 through the liquid inlet pipe 301, thereby realizing layered sampling of chemical sampling liquid of different depths.

[0029] like Figure 3 and Figure 4As shown, it also includes a rubber telescopic sleeve 4 and a scraper 401. The rubber telescopic sleeve 4 is installed on the inner top side of the hollow cover 5, and initially the rubber telescopic sleeve 4 covers the outer wall of the entire root sampling hollow tube 1. The end of the rubber telescopic sleeve 4 is provided with a scraper 401, and the scraper 401 is annularly slidably fitted on the outer wall of the sampling hollow tube 1. The scraper 401 is used to scrape off the sampling liquid remaining on the outer wall of the sampling hollow tube 1 after sampling, so as to reduce the pollution and waste caused by the volatilization of the sampling liquid to the outside.

[0030] During the process of inserting the sampling hollow tube 1 into the oil drum 100 to be sampled, the top of the oil drum 100 will continuously push the scraper 401 upward, and the upward scraper 401 will continuously compress the rubber telescopic sleeve 4 until the sampling hollow tube 1 is inserted into the bottom of the oil drum 100 to complete the sampling. When the operator takes the sampling hollow tube 1 out of the oil drum 100 through the handle 501, the hollow push rod 2 is no longer squeezed by the bottom of the oil drum 100 and resets downward under the action of the elastic member 202. The downwardly moved hollow push rod 2 drives each layer of the wedge block 307 to reset. After the block 307 no longer squeezes the fixed rod 308, the connecting slide rod 304 is reset under the action of the elastic member 306 and drives the plug 303 to block the circular hole plate 302 again, so that the chemical sampling liquid in the oil barrel 100 no longer enters the sampling hollow tube 1, and the scraper 401 that loses the oil barrel 100 after being squeezed will also be reset downward under the action of the rubber telescopic sleeve 4, and the sliding scraper 401 will scrape the chemical sampling liquid remaining on the outer wall of the sampling hollow tube 1 back into the oil barrel 100, avoiding the chemical liquid raw materials from dripping and volatilizing to cause pollution and waste.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A chemical engineering sampler, comprising a sampling hollow tube (1), wherein the sampling hollow tube (1) is a main body of chemical engineering sampling, and is characterized in that: It also comprises a segmentation block (201), a hollow mandrel (2), an elastic member (202), a segmentation base (3) and a liquid inlet assembly. A plurality of segmentation blocks (201) are fixedly arranged at equal intervals inside the sampling hollow tube (1). The segmentation blocks (201) divide the sampling hollow tube (1) into a plurality of identical sealed separation spaces. The middle of each segmentation block (201) is sealed and slidably connected to a hollow mandrel (2). The hollow mandrel (2) is located inside the sampling hollow tube (1). An elastic member (202) is arranged between the top of the hollow mandrel (2) and the segmentation block (201) on the uppermost layer. (202), and initially the lower end of the hollow push rod (2) is exposed at the bottom of the sampling hollow tube (1), a segment base (3) is fixedly installed between the sampling hollow tube (1) and every two adjacent segment blocks (201), the hollow push rod (2) seals and slides through each segment base (3), and a liquid inlet is opened at the tube wall of the sampling hollow tube (1) corresponding to each segment of the separated space, and a liquid inlet component is arranged between the segment base (3) and the segment block (201) therebelow, and the liquid inlet component is used to control the opening and closing of the sampling and is respectively adapted to each of the liquid inlets.

2. A chemical engineering sampler according to claim 1, characterized in that: The liquid inlet assembly comprises a liquid inlet pipe (301), a circular hole disk (302), a plug (303), a connecting slide rod (304), a spline slide rod (305), a second elastic member (306), a wedge block (307) and a fixing rod (308); the segmented base (3) and the corresponding liquid inlet are connected with a liquid inlet pipe (301); the inner tube wall of the lower section of the liquid inlet pipe (301) is provided with a circular hole disk (302); the circular hole disk (302) is provided with a circle of openings in the circumferential direction; the inner side of the circular hole disk (302) is fixedly connected with a spline slide rod (305) at the center; the outer curved tube wall of the liquid inlet pipe (301) is slidably penetrated by a connecting slide rod (304); the connecting slide rod ( A plurality of plugs (303) are fixedly connected to the outer side of the end portion (304) located in the liquid inlet pipe (301), and the plugs (303) are circumferentially arranged in a circle and are respectively embedded in and matched with the openings of the circular hole disk (302). The end portion of the connecting slide rod (304) located in the liquid inlet pipe (301) is a hollow structure. The connecting slide rod (304) is slidably connected to the spline slide rod (305) through the hollow structure. An elastic member 2 (306) is provided between the connecting slide rod (304) and the spline slide rod (305). A fixing rod (308) is fixedly connected to the outer end portion of the connecting slide rod (304), and a wedge block (307) is provided at the location where the hollow top rod (2) seals and penetrates the segment block (201).

3. A chemical engineering sampler according to claim 2, characterized in that: A sealing ring (7) is provided inside the segment block (201), and the sealing ring (7) is located at the sliding connection between the hollow top rod (2) and the segment block (201).

4. A chemical engineering sampler according to claim 3, characterized in that: It also includes a hollow cover (5) and a handle (501), and the upper end of the sampling hollow tube (1) is connected to the hollow cover (5) for reducing sampling volatilization.

5. A chemical engineering sampler according to claim 4, characterized in that: It also comprises a rubber telescopic sleeve (4) and a scraper (401), wherein the rubber telescopic sleeve (4) is installed on the inner top side of the hollow cover (5), and initially the rubber telescopic sleeve (4) covers the entire outer wall of the root sampling hollow tube (1), and the end of the rubber telescopic sleeve (4) is provided with a scraper (401), and the scraper (401) is slidably fitted on the outer wall of the sampling hollow tube (1) in an annular shape.

6. A chemical engineering sampler according to claim 5, characterized in that: It also includes a screw (6), a plunger (601) and a sealing plate (602), wherein the top of the hollow mandrel (2) is threadedly connected to the screw (6), and the screw (6) passes through the hollow structure of the hollow mandrel (2), and the lower end of the screw (6) is fixedly connected to the plunger (601), and a sealing plate (602) is slidably arranged between each segment block (201) and the adjacent segment base (3) below it, and the sealing plate (602) seals and slides between the tube wall of the sampling hollow tube (1) and the hollow mandrel (2), and an air outlet (603) is opened on the side wall of the hollow mandrel (2) located between two adjacent segment blocks (201), and the air outlet (603) is higher than the corresponding sealing plate (602) in the same separation space.

7. A chemical engineering sampler according to claim 6, characterized in that: A through opening is formed in the middle of the handle (501), and the screw rod (6) corresponds to the position of the through opening. When the screw rod (6) is turned and adjusted to the highest point, it can extend into the through opening.

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