Sampling valve of reaction kettle

Abstract

The utility model relates to the technical field of sampling valves, in particular to a reaction kettle sampling valve. The valve comprises a valve body and a valve seat which are communicated with a reaction kettle, the valve body is provided with a main pipeline, a discharging pipe and a valve element assembly, and the main pipeline linearly penetrates through the valve body and is communicated with the reaction kettle for leading out materials; the discharging pipe is integrally arranged on the side face of the valve body, is obliquely arranged relative to the horizontal plane, is communicated to the main pipeline and is used for discharging materials when sampling is needed; the valve element assembly is movably connected to the valve body and used for opening and closing the discharging pipe and controlling the material flow. When sampling is carried out, the sampling bottle is connected into the adapter on the liquid passing pipe opening, it is confirmed that wind exists in the suction opening, the base hand wheel is opened for sampling, after sampling is finished, the base hand wheel is closed, the sampling bottle is taken down, the blowback opening is purged, residual gas in the liquid passing pipe is purged out, and the residual gas is exhausted to waste gas treatment equipment through the suction opening. The possibility that waste gas escapes in air is reduced to a great extent, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling valves, in particular to a reaction kettle sampling valve. Background Art

[0002] Sampling refers to the process of extracting individuals or samples from a population, that is, the process of testing or observing the population. The basic purpose of sampling is to obtain representative samples from the overall material being tested. In the production process of chemical products, sampling and testing is also an indispensable step.

[0003] In the sampling process of chemical production, a sampler or a sampling valve is generally used to complete the sampling process.

[0004] For example, a chemical sampler disclosed in the Chinese patent publication number CN220356729U includes a jacket, a telescopic mechanism is arranged inside the jacket, a squeezing mechanism is arranged at the front end of the jacket, a sampling tube is arranged inside the squeezing mechanism, and the telescopic mechanism is extended inside the jacket to drive the squeezing mechanism to squeeze the sampling tube. After use, the sampling tube can be taken out of the chuck and replaced with a new one, which will not affect the accuracy of the next sample detection.

[0005] Another example is a chemical shutoff sampling valve disclosed in a Chinese patent with publication number CN111337301A, which includes a bottom plate, the bottom plate is fixedly connected to a vertical plate, the vertical plate is fixedly connected to a pipe 1, the pipe 1 is fixedly connected to one end of a sampling tube, the other end of the sampling tube is fixedly connected to a pipe 2, the two ends of the sampling tube are respectively fixedly connected to symmetrical trapezoidal plates, the upper part of the sampling tube is fixedly connected to a round block 1, the lower part of the sampling tube is fixedly connected to a round block 2, the round block 1 is provided with a vent hole 1, the round block 2 is provided with a symmetrical liquid outlet 1, the round block 2 is fixedly connected to a ring, the ring is fixedly connected to a cone cover, and the round block 1 is hinged to a sampling mechanism. This sampling valve can facilitate sampling of chemical pipelines.

[0006] However, no matter whether it is the above-mentioned sampler or sampling valve, sampling is performed directly after the valve is opened. Although the liquid material can be sampled well, the gas associated with the liquid material in the reaction container or pipeline is easy to leak, causing environmental pollution and even endangering personnel health.

[0007] In order to solve the above problems, the utility model provides a reaction kettle sampling valve. Utility Model Content

[0008] The utility model aims to provide a reaction kettle sampling valve to solve the problems raised in the above background technology.

[0009] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0010] A reaction kettle sampling valve comprises a valve body and a valve seat connected to the reaction kettle, and the valve body is provided with

[0011] The main pipeline linearly passes through the valve body and is connected to the reactor for leading out materials;

[0012] A discharge pipe is integrally arranged on the side of the valve body and is inclined relative to the horizontal plane. The discharge pipe is connected to the main pipeline and is used to discharge materials when sampling is required;

[0013] The valve core assembly is movably connected to the valve body and is used to open and close the discharge pipe and control the material flow;

[0014] The liquid passing pipe is detachably connected to the discharge pipe, and a sampling bottle is movably connected to the end of the liquid passing pipe. At the same time, a sampling box for enclosing and accommodating the sampling bottle is also provided at the end of the liquid passing pipe to collect leaked exhaust gas.

[0015] More optimally, the liquid-passing tube is made of CF8 material, and an adapter made of PTFE is provided at the end thereof for quick access to and removal of the sampling bottle.

[0016] More optimally, the sampling box is made of 304 steel, the sampling box is snap-connected to the outside of the adapter, and an exhaust port is arranged on the sampling box.

[0017] More optimally, the discharge pipe and the liquid passage pipe are connected and fixed by a sanitary clamp.

[0018] More optimally, a backflush port is provided at one end of the discharge pipe close to the valve body for flushing the liquid pipe at the end of sampling.

[0019] More optimally, the valve core assembly includes a plunger made of 304 steel, which is movably connected to the main pipeline. The end of the valve body is a base, and a base handwheel is arranged on the base. The base handwheel is connected to the plunger through a column to control the sliding of the plunger in the main pipeline.

[0020] More optimally, a filler is provided between the plunger and the side wall of the discharge pipe, and the filler is provided in three layers to prevent gas leakage.

[0021] More optimally, the discharge pipe is arranged to be inclined toward one side of the base.

[0022] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0023] (1) In the utility model, a sampling box is provided outside the sampling bottle, and the entire sampling bottle is placed in the sampling box. During the sampling process, the exhaust gas escapes from the sampling bottle and then escapes into the sampling box. At the same time, during the sampling process, the exhaust gas can be continuously discharged from the exhaust port to the exhaust gas treatment device, thereby further reducing the possibility of exhaust gas escaping to the outside and reducing environmental pollution.

[0024] (2) In the present invention, when sampling, the sampling bottle is connected to the adapter on the liquid pipe port, confirming that there is air at the exhaust port, and the base hand wheel is turned on to take samples. After sampling, the base hand wheel is closed, the sampling bottle is removed, and the backflush port is purged to blow out the remaining gas in the liquid pipe and discharge it to the exhaust gas treatment equipment through the exhaust port. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0026] Figure 1 It is a schematic diagram of the overall structure of Example 1;

[0027] Figure 2 is a side view of Example 1;

[0028] Figure 3 for Figure 1 A magnified schematic diagram of center A.

[0029] Among them, 1. valve body; 2. valve seat; 3. plunger; 4. packing ring; 5. packing; 6. packing sleeve; 7. packing gland; 8. packing bolt; 9. packing nut; 10. spring gasket; 11. discharge pipe; 12. backflush port; 13. liquid pipe; 14. sanitary clamp; 15. sampling bottle; 16. adapter; 17. sampling box; 18. exhaust port; 19. base; 20. base handwheel. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example 1, a reactor sampling valve, such as Figure 1 to Figure 2 As shown, it includes a valve body 1 which is cylindrical in shape as a whole, a valve seat 2 is arranged on the top of the valve body 1, and the valve seat 2 is connected to the reactor or pipeline. A main pipeline is arranged in the valve body 1, which is linearly distributed along the valve body 1 and connected to the reactor or pipeline to lead out the materials therein.

[0032] A discharge pipe 11 is provided on the right side of the valve body 1. The discharge pipe 11 is inclined relative to the horizontal plane, and the angle between the discharge pipe 11 and the valve body 1 is 60 degrees, so that after the sampling is completed and the valve is closed, the material can be discharged under the action of gravity. A liquid passing pipe 13 is provided outside the discharge pipe 11, and the liquid passing pipe 13 is made of CF8 material; an adapter 16 is sleeved at the bottom of the liquid passing pipe 13, and the adapter 16 is made of PTFE; the sampling bottle 15 is connected to the adapter 16, and the liquid passing pipe 13 can quickly connect and remove the sampling bottle 15 through the adapter 16.

[0033] A sanitary clamp 14 is provided between the discharge pipe 11 and the liquid passing pipe 13. Here, the sanitary clamp 14 is a flange. The liquid passing pipe 13 and the discharge pipe 11 can be quickly assembled and unassembled through the sanitary clamp 14. After sampling is completed, the liquid passing pipe 13 and the sampling bottle 15 can be disassembled together to prevent gas and material leakage. In addition, a backflush port 12 is provided at the top of the discharge pipe 11. After sampling is completed, the valve is closed and gas is blown through the backflush port 12 to discharge the residual material and gas in the liquid passing pipe 13.

[0034] In order to reduce the exhaust gas leakage during the sampling process, the utility model is provided with a sampling box 17 outside the sampling bottle 15, and the sampling box 17 is made of 304 steel; the sampling box 17 is connected to the adapter 16 at the end of the liquid pipe 13, and the entire sampling bottle 15 is accommodated in the sampling box 17. During the sampling process, the exhaust gas escapes from the sampling bottle 15 and escapes into the sampling box 17.

[0035] In addition, an exhaust port 18 is provided on the top of the sampling box 17, and the exhaust port 18 is connected to the external exhaust gas treatment device. During the sampling process, the exhaust gas can be continuously discharged from the exhaust port 18 to the exhaust gas treatment device, further reducing the possibility of exhaust gas escaping to the outside and reducing environmental pollution.

[0036] The utility model also has a valve core assembly for controlling the opening and closing of the valve and the flow of materials. The discharge pipe 11 is mainly closed and the flow is controlled by the plunger 3 movably connected to the main pipeline. A base 19 is provided at the bottom of the valve body 1, and a base handwheel 20 is threadedly connected to the base 19. The base handwheel 20 is connected to the plunger 3 through a column. The plunger 3, the base 19 and the valve seat 2 are all made of 304 steel, and the valve body 1 is made of CF8 material. During the sampling process, the plunger 3 can be controlled to move by turning the base handwheel 20, so that it closes or opens the discharge pipe 11.

[0037] In order to ensure the sealing of materials and gas in the main pipeline, three layers of fillers 5 are provided between the plunger 3 and the side wall of the main pipeline. Figure 1 and Figure 3As shown, the packing 5 is provided with three layers 5A, 5B and 5C. In order to position and fix the packing 5, packing rings 4 are provided at the top and bottom of the packing 5, which are 4A and 4B respectively. A packing sleeve 6 and a packing cover 7 are provided outside the packing ring 4 at the bottom.

[0038] In addition, in order to fix the packing 5 on the plunger 3, a packing nut 9 and a packing bolt 8 are provided at the bottom of the plunger 3, which are fixed by bolt and nut adaptation, and a spring washer 10 is provided to further improve the connection firmness.

[0039] When sampling, the sampling bottle 15 is connected to the adapter 16 on the outlet of the liquid pipe 13, and it is confirmed that there is wind at the exhaust port 18. The base hand wheel 20 is turned on to take samples. After sampling, the base hand wheel 20 is closed, the sampling bottle 15 is removed, and the backflush port 12 is purged to purge the remaining gas in the liquid pipe 13 and discharge it to the exhaust gas treatment equipment through the exhaust port 1.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A reactor sampling valve, comprising a valve body (1) and a valve seat (2) connected to a reactor, characterized in that: The valve body (1) is provided with A main pipeline linearly passes through the valve body (1) and is connected to the reaction kettle for leading out materials; A discharge pipe (11) is integrally arranged on the side of the valve body (1) and is arranged to be inclined relative to the horizontal plane. The discharge pipe (11) is connected to the main pipeline and is used to discharge materials when sampling is required. A valve core assembly, movably connected to the valve body (1), used for opening and closing the discharge pipe (11) and controlling the material flow; The liquid-passing pipe (13) is detachably connected to the discharge pipe (11), and a sampling bottle (15) is movably connected to the end of the liquid-passing pipe (13). At the same time, a sampling box (17) for enclosing and accommodating the sampling bottle (15) is also provided at the end of the liquid-passing pipe (13) to collect leaked exhaust gas.

2. A reactor sampling valve according to claim 1, characterized in that: The liquid-passing tube (13) is made of CF8 material, and an adapter (16) made of PTFE material is provided at the end thereof for quickly connecting to and removing the sampling bottle (15).

3. A reaction kettle sampling valve according to claim 2, characterized in that: The sampling box (17) is made of 304 steel, the sampling box (17) is snap-connected to the outside of the adapter (16), and an air outlet (18) is arranged on the sampling box (17).

4. A reactor sampling valve according to claim 1, characterized in that: The discharge pipe (11) and the liquid passage pipe (13) are connected and fixed via a sanitary clamp (14).

5. A reactor sampling valve according to claim 1, characterized in that: The discharge pipe (11) is provided with a back-blowing port (12) at one end close to the valve body (1), which is used to blow through the liquid pipe (13) when sampling is completed.

6. A reactor sampling valve according to claim 1, characterized in that: The valve core assembly comprises a plunger (3) made of 304 steel, the plunger (3) is movably connected in the main pipeline, the end of the valve body (1) is a base (19), a base handwheel (20) is arranged on the base (19), and the base handwheel (20) is connected to the plunger (3) through a column to control the sliding of the plunger (3) in the main pipeline.

7. A reactor sampling valve according to claim 6, characterized in that: A filler (5) is provided between the plunger (3) and the side wall of the discharge pipe (11), and the filler (5) is provided with three layers to prevent gas leakage.

8. A reactor sampling valve according to claim 7, characterized in that: The discharge pipe (11) is arranged to be inclined toward one side of the base (19).

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