An online sampler

Abstract

The present invention relates to the field of sampling equipment, and in particular to an online solid powder or liquid sampler. The sampler in the present invention includes a sampler body connected to the equipment to be sampled, a movable sampling component and related sealing components, an air blow pipe and a positioning scale. The purpose of online quantitative sampling is achieved through certain operating steps. Since the sealing component is far away from the reactor and has few movable parts, it can be applied to different working conditions such as high temperature and high pressure. It is suitable for online quantitative sampling of materials such as fluidized beds, boiling beds, and slurry beds containing solid powders and liquid slurries, etc., which solves the problems of easy clogging and difficulty in quantification of conventional samplers, and has a wide range of uses.

Description

Technical Field

[0001] The invention relates to the field of sampling equipment, in particular to an online solid powder or liquid sampler. Background Art

[0002] A fluidized bed reactor is a reactor that uses gas or liquid to pass through a granular solid layer to put solid particles in a suspended motion state and conduct a gas-solid phase reaction process or a liquid-solid phase reaction process. Solid particle materials are suspended in the equipment under the action of gas or liquid flow. The solid particle layer in a fluidized state has the characteristics of a liquid. When a fluidized bed reactor is used in a gas-solid system, it is also called a boiling bed reactor. The fluidized bed phenomenon was first discovered by the German Fritz Winkler. Its early application in modern industry was the pulverized coal gasification furnace that appeared in the 1920s. This is the famous Winkler furnace. Its large-scale industrial application was the petroleum catalytic cracking of Warren Lewis and others at the Massachusetts Institute of Technology in the 1940s. At present, fluidized bed reactors have been widely used in chemical, petroleum, metallurgy, nuclear industry and other sectors.

[0003] A slurry reactor is a reactor that is in a static state and has a gas phase as a continuous phase. There are four main types of slurry reactors, namely mechanically stirred tanks, loop reactors, bubble towers and three-phase fluidized bed reactors. There are two basic forms of slurry reactors: one is the stirred tank type, which uses mechanical stirring to mix the slurry, and is suitable for situations with high solid content, low gas flow or intermittent feeding of both gas and liquid phases; the other is the three-phase fluidized bed type, which uses the effect of gas rising to suspend solids and mix the slurry, avoiding the shaft sealing problem of mechanical stirring, and is particularly suitable for high-pressure reactions.

[0004] In industry and laboratories, online quantitative sampling of solid powders / liquids in fluidized bed reactors is usually of great significance for process research and production guidance. How to achieve online and accurate sampling is often a key technical point. Especially for micro-reactors with milliliter-level catalyst loading, large and unbalanced sampling volumes will destroy the stability of the sample, so the design of the sampler is very critical. Summary of the invention

[0005] In view of the above problems, the present invention provides an online sampler with simple structure, easy manufacturing, compact layout, modular design, easy adjustment of sampling volume and convenient maintenance. It solves the problem of online quantitative sampling of solid powder or liquid in industrial or laboratory equipment, and solves the problem of easy clogging of conventional samplers.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0007] The present invention discloses an online sampler, comprising a sampler body, a movable sampling rod, a sampling outlet, a sealing packing, a sampling operation handle, a positioning scale and an air blowing pipe, wherein the sampler body is connected to a reactor, the movable sampling rod is arranged inside the sampler body, a sampling groove is arranged on the movable sampling rod, the sampling groove is an open groove, and the open groove is used to quantitatively measure the volume of the sample, the sampling groove is arranged at the left end of the movable sampling rod, the movable sampling rod extends to the outside of the sampler body away from the reactor end, a sealing gland is arranged on the right side of the sampler body, the sealing gland surrounds the outside of the movable sampling rod, a packing pressure ring is also arranged on the right part of the sealing packing, the sampling outlet is arranged at the lower middle part of the sampler body, a sealing packing is arranged between the sampler body and the movable sampling rod, the end of the movable sampling rod is connected to the sampling operation handle, the positioning scale is connected to the movable sampling rod, the air blowing pipe is arranged on one side of the sampling outlet for connecting air, and a valve is arranged on the air outlet pipe.

[0008] Furthermore, a scale fixing screw is provided at the left end of the positioning scale for fixing the positioning scale.

[0009] Furthermore, the air blowing pipe can be used as a back-blowing port or an air sealing port.

[0010] Furthermore, the sampling operation handle can be replaced with an automated instrument.

[0011] Furthermore, the quantitative volume range of the opening groove is 0.1 to 200 ml.

[0012] Furthermore, by adjusting the operating steps, the online sampler can also be used as a replenisher to quantitatively replenish the catalyst to the reaction system.

[0013] Furthermore, the online sampler may be provided with an additional dosing port, so that the sampler can perform both online sampling and online dosing. Preferably, the dosing port is provided directly above the discharge port.

[0014] Furthermore, the online sampler is used for online quantitative sampling of solid powder or liquid slurry.

[0015] Furthermore, the sampler body and the reactor may be connected via flanges, welding or threads.

[0016] The advantages and beneficial effects of the present invention are: providing an online sampler with a simple structure, easy manufacturing, compact layout, modular design, easy adjustment of sampling volume, and convenient maintenance, which solves the problem of online quantitative sampling of solid powders or liquids in industrial or laboratory devices, and at the same time solves the problem of easy clogging of conventional samplers. In conjunction with automatic instruments, online automatic sampling can also be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 Schematic diagram of the core structure of the online sampler.

[0019] Figure 2 Axonometric view of the sampler.

[0020] Figure 3 Schematic diagram of the sampler collecting samples.

[0021] Figure 4 Schematic diagram of the intermediate steps in collecting samples for the sampler.

[0022] Figure 5 Schematic diagram of the steps for discharging samples from the sampler.

[0023] Figure 6 Schematic diagram of replenishment steps when the sampler is used as a replenisher.

[0024] Figure 7 It is a schematic diagram of the integrated structure of the sampler and the supplementer.

[0025] Description of Reference Numerals

[0026] 1. Sampler body 2. Movable sampling rod 3. Sampling outlet 4. Sealing packing 5. Sealing gland 6. Sampling operation handle 7. Packing pressure ring 8. Positioning scale 9. Scale fixing screw 10. Reactor 11. Air blowing pipe 12. Dosing port DETAILED DESCRIPTION

[0027] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0028] Example 1

[0029] An online sampler, such as Figure 1 and 2As shown, it includes a sampler body, a movable sampling rod 2, a sampling outlet 3, a sealing packing 4, a sampling operation handle 6, a positioning scale 8 and an air blowing pipe 11. The sampler body 1 is connected to the reactor 10, and the sampler body and the reactor are connected by a flange. The movable sampling rod 2 is arranged inside the sampler body 1. The movable sampling rod 2 is provided with a sampling groove, which is an open groove. The open groove is used to quantitatively measure the volume of the sample. The sampling groove is arranged at the left end of the movable sampling rod 2, and the end of the movable sampling rod 2 away from the reactor extends to the outside of the sampler body 1. A sealing gland 5 is provided on the right side of the sampler body 1, and the sealing gland 5 surrounds the outside of the movable sampling rod 2. A packing pressure ring 7 is also provided on the right part of the sealing packing 4. The sampling outlet 3 is arranged in the lower middle part of the sampler body 1, and a sealing packing 4 is provided between the sampler body 1 and the movable sampling rod 2. The end of the movable sampling rod 2 is connected with a sampling operation handle 6, and the sampling operation handle 6 can be replaced with an automatic instrument. The positioning scale 8 is connected to the movable sampling rod 2. The left end of the positioning scale 8 is provided with a scale fixing screw 9 for fixing the positioning scale 8. The air blowing pipe 11 can be used as a back-blowing port or an air sealing port. The air blowing pipe 11 is arranged on one side of the sampling outlet 3 for connecting air. A valve is arranged on the air outlet pipe 11. The quantitative volume of the opening groove is set to 100 ml.

[0030] like Figure 1 As shown, the online sampler is in the initial state and is ready to work. First, the movable sampling rod 2 is pushed into the area to be sampled in the reactor 10, as shown in FIG. Figure 3 As shown, the sampling slot of the movable sampling rod 2 is placed in the material, and after the sampling slot is filled with the sample, the movable sampling rod 2 is pulled out to Figure 4 Position, operate the sampling operation handle 6 to rotate the movable sampling rod 2 180°, such as Figure 5 , let the sample fall into the sampling outlet 3, open the valve of the air blowing pipe 11, blow the remaining sample into the sampling bottle, then close the valve of the air blowing pipe 11, operate the sampling operation handle 6 to push the movable sampling rod 2 to the initial position, and complete the sampling operation.

[0031] Example 2

[0032] An online sampler, such as Figure 6As shown, it includes a sampler body 1, a movable sampling rod 2, a sampling outlet 3, a sealing packing 4, a sampling operation handle 6, a positioning scale 8 and an air blowing pipe 11. The sampler body 1 is connected to the reactor 10. The movable sampling rod 2 is arranged inside the sampler body 1. The movable sampling rod 2 is provided with a sampling groove, which is an open groove. The open groove is used to quantitatively measure the volume of the sample. The sampling groove is arranged at the left end of the movable sampling rod 2. The end of the movable sampling rod 2 away from the reactor extends to the outside of the sampler body 1. A sealing gland 5 is provided on the right side of the sampler body 1. The sealing gland 5 surrounds the outside of the movable sampling rod 2. A packing pressure ring 7 is also provided on the right part of the sealing packing 4. The sampling outlet 3 is arranged in the lower middle part of the sampler body 1. A sealing packing 4 is provided between the sampler body 1 and the movable sampling rod 2. The end of the movable sampling rod 2 is connected to the sampling operation handle 6. The positioning scale 8 is connected to the movable sampling rod 2. The air blowing pipe 11 is arranged on one side of the sampling outlet 3 for connecting air. A valve is provided on the air outlet pipe 11.

[0033] The left end of the positioning scale 8 is provided with a scale fixing screw 9 for fixing the positioning scale 8, and the air blowing pipe 11 can be used as a back blowing port or an air sealing port. The quantitative volume of the opening groove is set to 5ml. By adjusting the operating steps, the online sampler can also be used as a replenisher to quantitatively supply catalyst to the reaction system.

[0034] The online replenisher is in the initial state and is ready to work. First, the sampler body 1 is rotated 180°, the movable sampling rod 2 is rotated 180°, the movable sampling rod 2 is pulled out to align the sampling slot with the sampling outlet 3, the catalyst or other reagent to be added is placed into the sampling slot through the sampling outlet 3, the movable sampling rod 2 is pushed into the reactor 10, the movable sampling rod 2 is rotated 180° by operating the sampling operation handle 6, the catalyst is added to the reactor 10, the sampling operation handle 6 is operated to push the movable sampling rod 2 to the initial position, and the replenishment operation is completed.

[0035] Example 3

[0036] An online sampler, such as Figure 7As shown, the sampler body 1 includes a sampler body 1, a movable sampling rod 2, a sampling outlet 3, a sealing packing 4, a sampling operation handle 6, a positioning scale 8 and an air blowing pipe 11. The sampler body 1 is connected to the reactor 10. The movable sampling rod 2 is arranged inside the sampler body 1. The movable sampling rod 2 is provided with a sampling groove, which is an open groove. The open groove is used to quantitatively measure the volume of the sample. The sampling groove is arranged at the left end of the movable sampling rod 2. The end of the movable sampling rod 2 away from the reactor extends to the outside of the sampler body 1. The right side of the sampler body 1 is provided with a sealing gland 5, which surrounds the outside of the movable sampling rod 2. The right part of the sealing packing 4 is also provided with a packing pressure ring 7. The sampling outlet 3 is arranged at the lower middle part of the sampler body 1. The online sampler can also be provided with a dosing port 12, which is arranged just above the discharge port 3. The sampler can be both online sampling and online dosing. A sealing filler 4 is provided between the sampler body 1 and the movable sampling rod 2, a sampling operation handle 6 is connected to the end of the movable sampling rod 2, a positioning scale 8 is connected to the movable sampling rod 2, a scale fixing screw 9 is provided at the left end of the positioning scale 8 for fixing the positioning scale 8, and an air blowing pipe 11 is provided on one side of the sampling outlet 3 for connecting air, and a valve is provided on the air outlet pipe 11. The air blowing pipe 11 can be used as a back-blowing port or an air seal. The sampling operation handle 6 can be replaced with an automated instrument. The quantitative volume of the opening groove is 50 ml.

[0037] After adjusting the position of the movable sampling rod 2, the catalyst is added into the sampling tank through the dosing port 12 and then delivered into the reactor 10 in the same manner as in Example 2. If sampling and analysis are required, the movable sampling rod 2 is pushed into the reactor 10 for sampling operation, and then the sample is placed into the sampling bottle in the same manner as in Example 1, thereby eliminating the step of rotating the reactor body 1 and providing a multifunctional sampling / dosing device.

[0038] 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 principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An online sampler, characterized in that: The sampler comprises a sampler body, a movable sampling rod, a sampling outlet, a sealing packing, a sampling operation handle, a positioning scale and an air blowing pipe, wherein the sampler body is connected to the reactor, the movable sampling rod is arranged inside the sampler body, a sampling groove is arranged on the movable sampling rod, the sampling groove is an open groove, and the open groove is used to quantitatively measure the volume of the sample, the sampling groove is arranged at the left end of the movable sampling rod, the end of the movable sampling rod away from the reactor extends to the outside of the sampler body, a sealing gland is arranged on the right side of the sampler body, and the sealing gland surrounds the outside of the movable sampling rod, the sampling outlet is arranged at the lower middle part of the sampler body, a sealing packing is arranged between the sampler body and the movable sampling rod, and a packing pressure ring is also arranged on the right side of the sealing packing, the end of the movable sampling rod away from the sampling groove is connected to the sampling operation handle, the positioning scale is connected to the movable sampling rod, the air blowing pipe is arranged on one side of the sampling outlet for connecting air, and a valve is arranged on the air blowing pipe; The air blowing pipe is used as a back-blowing port or an air sealing port; the online sampler is also provided with a dosing port, so that the sampler can both sample online and replenish online; the dosing port is arranged just above the discharge port; The online sampler is used for online quantitative sampling of solid powder or liquid slurry; The sampler body is connected to the reactor by flange, welding or threading; When making up, adjust the position of the movable sampling rod, add the catalyst or other reagents into the sampling slot through the dosing port, push the movable sampling rod into the reactor, rotate the movable sampling rod 180° by operating the sampling operation handle, add the catalyst or other reagents into the reactor, if sampling analysis is required, push the movable sampling rod into the reactor, place the sampling slot of the movable sampling rod in the material, after the sampling slot is filled with the sample, pull out the movable sampling rod, operate the sampling operation handle to rotate the movable sampling rod 180°, and let the sample fall into the sampling outlet.

2. An online sampler according to claim 1, characterized in that: A ruler fixing screw is provided at the left end of the positioning ruler for fixing the positioning ruler.

3. An online sampler according to claim 1, characterized in that: The sampling operation handle is replaced with an automated instrument.

4. The online sampler according to claim 1, characterized in that: The quantitative volume range of the opening groove is 0.1 to 200 ml.

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