A pressure vessel sampling device

Abstract

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

Description

Technical Field

[0001] This utility model relates to the field of live sampling technology, specifically a live sampling device for pressure vessels. Background Technology

[0002] Live sampling refers to the safe and reliable extraction of media (gas, liquid, or gas-liquid mixture) samples during the operation of a pressure vessel without reducing the system pressure. These samples are used for real-time monitoring, testing, or fault diagnosis. This technology is widely used in petrochemical, pharmaceutical, power, and nuclear industries.

[0003] When sampling from inside a pressure vessel, live sampling devices are prone to problems with a single valve group. If a valve group malfunctions during sampling, it may not be able to close the sampling pipeline in time, thus affecting the stability of live sampling. In addition, particles adhering to the inner wall of some live sampling devices are difficult to clean and can easily cause blockages.

[0004] There is an urgent need for a pressure vessel live sampling device to address the technical deficiencies mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a pressure vessel live sampling device to solve the problem of poor sampling safety mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure vessel live sampling device, comprising a sampling tube and a pressure vessel body, a main valve tube installed on the right side of the pressure vessel body, a first control valve and a second control valve sequentially installed on the main valve tube from left to right, a secondary valve tube installed at the bottom end of the main valve tube, a sampling valve installed on the secondary valve tube, an installation tube installed at the bottom end of the secondary valve tube, the sampling tube being connected to the installation tube, a cooling jacket installed on the outside of the sampling tube, a cooling tube installed inside the cooling jacket, a cooling conductive layer installed at the contact point between the cooling jacket and the sampling tube, an ultrasonic probe collar installed on the outside of the main valve tube, a nitrogen supply assembly installed at the end of the main valve tube, a gas delivery pipe installed at the output end of the nitrogen supply assembly, and a backflush shroud installed at the end of the gas delivery pipe.

[0007] As a further technical solution of this utility model, both the first control valve and the second control valve are diaphragm valves, and the auxiliary valve pipe is connected to the main valve pipe.

[0008] As a further technical solution of this utility model, a venting valve is installed at the top left side of the sampling tube, and a filter screen is provided at the connection between the venting valve and the sampling tube.

[0009] As a further technical solution of this utility model, a connecting tube is fixedly connected to the top end of the sampling tube, a sealing ring is fixedly connected to the outside of the connecting tube, and a connecting groove is provided inside the mounting tube.

[0010] As a further technical solution of this utility model, the connecting pipe is provided with an external thread on the outside, and the connecting groove is provided with an internal thread groove inside, and the connecting pipe is embedded in the connecting groove to form a threaded sealing connection.

[0011] As a further technical solution of this utility model, a water inlet pipe is installed at the top left side of the cooling jacket, and a water outlet pipe is installed at the bottom right side of the cooling jacket. Both the water inlet pipe and the water outlet pipe are connected to the cooling pipe.

[0012] As a further technical solution of this utility model, the nitrogen supply assembly includes a nitrogen tank, a delivery pump and a delivery pipeline, and a backflush probe is installed inside the backflush hood, which can be installed at the end of the main valve pipe.

[0013] As a further technical solution of this utility model, a sensor is provided on the ultrasonic probe collar, and the ultrasonic probe collar is externally connected to an ultrasonic controller via a connecting line.

[0014] Compared with the prior art, the beneficial effects of this utility model are: this pressure vessel live sampling device not only realizes the function of improving sampling safety and facilitating cooling and temperature reduction, but also realizes the function of facilitating cleaning;

[0015] The system is equipped with a sampling tube, a secondary valve tube, a sampling valve, a main valve tube, a first control valve, a second control valve, and a venting valve. During sampling, the first control valve on the main valve tube can be opened first, while the second control valve remains closed. Then, the sampling valve on the secondary valve tube can be opened, allowing the powder sample inside the pressure vessel to enter the sampling tube for sampling. During the sampling process, the venting valve can release gas to ensure a constant pressure inside the sampling tube. The first and second control valves on the main valve tube and the sampling valve on the secondary valve tube adopt a dual-valve assembly structure to ensure stable and safe closure during sampling. This structure facilitates safe sampling.

[0016] By setting up a cooling jacket, water inlet pipe, cooling pipe, heat conduction layer and water outlet pipe, when taking samples, the coolant delivery pipe is first connected to the water inlet pipe, and then the water outlet pipe and coolant tank are connected through the pipe. When taking samples, the coolant enters the cooling pipe from the water inlet pipe. After circulating inside the cooling pipe, the coolant flows back into the coolant tank from the water outlet pipe. The circulating coolant can quickly remove the temperature of the sampling tube surface to avoid high temperature burns to the sampling personnel after sampling. This structure realizes the function of easy cooling.

[0017] By incorporating an ultrasonic probe collar, a backflush hood, a nitrogen supply assembly, and a gas delivery pipe, the ultrasonic probe collar can be controlled by an external ultrasonic controller. The ultrasonic probe collar maintains the vibration of the main valve pipe to clean particulate impurities on the inner wall. After the particles fall off the inner wall, the gas supply pump inside the nitrogen supply assembly delivers nitrogen from the nitrogen tank to the backflush hood. The backflush hood then backflushes and cleans the particulate impurities inside the main valve pipe to prevent blockage. This structure facilitates easy cleaning. Attached Figure Description

[0018] Figure 1 This is a frontal cross-sectional view of the present invention.

[0019] Figure 2 This is a front view cross-sectional structural diagram of the sampling tube of this utility model;

[0020] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a front view schematic diagram of the ultrasonic probe collar structure of this utility model.

[0022] In the diagram: 1. Sampling tube; 2. Cooling jacket; 3. Secondary valve tube; 4. Sampling valve; 5. Pressure vessel body; 6. Main valve tube; 7. First control valve; 8. Second control valve; 9. Ultrasonic probe collar; 10. Backflush hood; 11. Nitrogen supply assembly; 12. Mounting pipe; 13. Water inlet pipe; 14. Cooling pipe; 15. Cooling layer; 16. Water outlet pipe; 17. Connecting pipe; 18. Sealing ring; 19. Connecting groove; 20. Gas delivery pipe; 21. Venting valve. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-4This utility model provides an embodiment of a pressure vessel live sampling device, comprising a sampling tube 1 and a pressure vessel body 5. A main valve tube 6 is installed on the right side of the pressure vessel body 5. A first control valve 7 and a second control valve 8 are installed on the main valve tube 6 from left to right. A secondary valve tube 3 is installed at the bottom end of the main valve tube 6. A sampling valve 4 is installed on the secondary valve tube 3. An installation tube 12 is installed at the bottom end of the secondary valve tube 3. The sampling tube 1 is connected to the installation tube 12. A cooling jacket 2 is installed outside the sampling tube 1. A cooling tube 14 is installed inside the cooling jacket 2. A fitting is provided between the cooling jacket 2 and the sampling tube 1. The main valve pipe 6 is equipped with a cooling layer 15, an ultrasonic probe collar 9 is installed on the outside of the main valve pipe 6, a nitrogen supply assembly 11 is installed at the end of the main valve pipe 6, a gas supply pipe 20 is installed at the output end of the nitrogen supply assembly 11, a backflush cover 10 is installed at the end of the gas supply pipe 20, a connecting pipe 17 is fixedly connected to the top end of the sampling pipe 1, a sealing ring 18 is fixedly connected to the outside of the connecting pipe 17, a connecting groove 19 is provided inside the mounting pipe 12, an external thread is provided on the outside of the connecting pipe 17, an internal thread groove is provided inside the connecting groove 19, and the connecting pipe 17 is embedded inside the connecting groove 19 to form a threaded sealing connection.

[0025] The first control valve 7 and the second control valve 8 are both diaphragm valves. The auxiliary valve pipe 3 is connected to the main valve pipe 6. A vent valve 21 is installed at the top left side of the sampling pipe 1. A filter screen is installed at the connection between the vent valve 21 and the sampling pipe 1.

[0026] Specifically, such as Figure 1 and Figure 3 As shown, during sampling, the first control valve 7 on the main valve pipe 6 can be opened first, while the second control valve 8 remains closed. Then, the sampling valve 4 on the auxiliary valve pipe 3 can be opened, allowing the powder sample inside the pressure vessel body 5 to enter the sampling pipe 1 for sampling. During the sampling process, the vent valve 21 can release gas to ensure a constant pressure inside the sampling pipe 1. The first control valve 7 and the second control valve 8 on the main valve pipe 6, as well as the sampling valve 4 on the auxiliary valve pipe 3, adopt a dual-valve assembly structure to ensure stable and safe closure during sampling.

[0027] A water inlet pipe 13 is installed at the top left side of the cooling jacket 2, and a water outlet pipe 16 is installed at the bottom right side of the cooling jacket 2. Both the water inlet pipe 13 and the water outlet pipe 16 are connected to the cooling pipe 14.

[0028] Specifically, such as Figure 1 and Figure 2 As shown, when taking samples, the coolant delivery pipe is first connected to the inlet pipe 13, and then the outlet pipe 16 and the coolant tank are connected through the pipe. When taking samples, the coolant enters the cooling pipe 14 from the inlet pipe 13. After the coolant flows inside the cooling pipe 14, it flows back into the coolant tank from the outlet pipe 16. The flowing coolant can quickly remove the temperature of the sampling tube 1 surface to avoid the high temperature burn to the sampling personnel after sampling.

[0029] The nitrogen supply assembly 11 includes a nitrogen tank, a delivery pump and a delivery pipeline. A backflush probe is installed inside the backflush hood 10. The backflush hood 10 can be installed at the end of the main valve pipe 6. A sensor is installed on the ultrasonic probe collar 9. The ultrasonic probe collar 9 is connected to an ultrasonic controller via a connecting line.

[0030] Specifically, such as Figure 1 and Figure 4 As shown, the ultrasonic probe collar 9 can be controlled by an external ultrasonic controller. The ultrasonic probe collar 9 can keep the main valve pipe 6 vibrating to clean the particulate impurities on the inner wall. After the particles fall off the inner wall, the gas supply pump inside the nitrogen supply assembly 11 can deliver the nitrogen inside the nitrogen tank to the backflush hood 10. The backflush hood 10 then backflushes and cleans the particulate impurities inside the main valve pipe 6 to prevent blockage.

[0031] Working Principle: In use, when sampling, first open the first control valve 7 on the main valve pipe 6, keeping the second control valve 8 closed, and then open the sampling valve 4 on the auxiliary valve pipe 3. The powder sample inside the pressure vessel body 5 can then enter the sampling tube 1 for sampling. During sampling, the vent valve 21 releases air to ensure constant pressure inside the sampling tube 1. The first and second control valves on the main valve pipe 6, and the sampling valve 4 on the auxiliary valve pipe 3, employ a dual-valve assembly structure to ensure stable and safe closure during sampling. During sampling, first connect the coolant delivery pipe to the inlet pipe 13, and then connect the outlet pipe 16 and the coolant tank through a pipeline. During sampling, the coolant flows from... The water inlet pipe 13 enters the cooling pipe 14. After circulating inside the cooling pipe 14, the coolant flows back to the coolant tank through the water outlet pipe 16. The circulating coolant can quickly remove the temperature from the surface of the sampling tube 1 to prevent the sampling personnel from being burned by high temperature after sampling. The ultrasonic probe collar 9 can be controlled by an external ultrasonic controller. The ultrasonic probe collar 9 can keep the main valve pipe 6 vibrating to clean the particulate impurities on the inner wall. After the particles fall off the inner wall, the gas supply pump inside the nitrogen supply assembly 11 can deliver the nitrogen inside the nitrogen tank to the backflush hood 10. The backflush hood 10 then backflushes and cleans the particulate impurities inside the main valve pipe 6 to prevent blockage. This structure realizes the function of easy cleaning.

[0032] The computer software involved in the hardware carriers such as the ultrasonic controller and nitrogen supply equipment in this technical solution is software technology known to those skilled in the art. It is merely applied to the aforementioned hardware carriers. In other words, the computer software involved in this technical solution is an essential technical feature for solving the above-mentioned technical problem, constituting a necessary technical feature for the technical problem solved by this application, but it is not a differentiating technical feature (not a point of technical improvement). The applicant has not made any technical improvements to the computer software involved in the aforementioned related hardware carriers, nor is it a key technical point of the invention.

[0033] Therefore, the "ultrasonic controller and nitrogen supply equipment" involved in this application are all physical functional modules that combine existing computer software programs or protocols with the hardware carrier of this application. The computer software programs involved in these physical functional modules are technologies known to those skilled in the art and are not improvements of this application. The improvement of this application should be the interaction relationship between the various physical functional modules, that is, the improvement of the overall structure of this application, in order to solve the corresponding technical problems to be solved by this application.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A pressure vessel on-line sampling device comprising a sampling tube (1) and a pressure vessel body (5) characterised in that: A main valve pipe (6) is installed on the right side of the pressure vessel body (5). A first control valve (7) and a second control valve (8) are installed on the main valve pipe (6) from left to right. A secondary valve pipe (3) is installed at the bottom of the main valve pipe (6). A sampling valve (4) is installed on the secondary valve pipe (3). An installation pipe (12) is installed at the bottom of the secondary valve pipe (3). The sampling pipe (1) is connected to the installation pipe (12). A cooling device is installed on the outside of the sampling pipe (1). The cooling sleeve (2) has a cooling pipe (14) installed inside, a cooling conductive layer (15) installed at the joint between the cooling sleeve (2) and the sampling tube (1), an ultrasonic probe collar (9) installed on the outside of the main valve tube (6), a nitrogen supply assembly (11) installed at the end of the main valve tube (6), a gas delivery pipe (20) installed at the output end of the nitrogen supply assembly (11), and a backflush cover (10) installed at the end of the gas delivery pipe (20).

2. A device for taking a sample from a pressure vessel under pressure according to claim 1, characterized in that: The first control valve (7) and the second control valve (8) are both diaphragm valves, and the auxiliary valve pipe (3) is connected to the main valve pipe (6).

3. A device for taking a sample from a pressure vessel while the pressure vessel is under pressure according to claim 1, characterized in that: A venting valve (21) is installed at the top left side of the sampling tube (1), and a filter screen is provided at the connection between the venting valve (21) and the sampling tube (1).

4. The apparatus of claim 1, wherein: The top end of the sampling tube (1) is fixedly connected to a connecting tube (17), and a sealing ring (18) is fixedly connected to the outside of the connecting tube (17). A connecting groove (19) is provided inside the mounting tube (12).

5. A device for taking a sample from a pressure vessel under pressure according to claim 4, characterized in that: The connecting pipe (17) is provided with an external thread on the outside, and the connecting groove (19) is provided with an internal thread groove inside. The connecting pipe (17) is embedded in the connecting groove (19) in a threaded sealing connection.

6. A pressure vessel live sampling device according to claim 1, characterized in that: A water inlet pipe (13) is installed at the top left side of the cooling sleeve (2), and a water outlet pipe (16) is installed at the bottom right side of the cooling sleeve (2). Both the water inlet pipe (13) and the water outlet pipe (16) are connected to the cooling pipe (14).

7. A pressure vessel live sampling device according to claim 1, characterized in that: The nitrogen supply assembly (11) includes a nitrogen tank, a delivery pump and a delivery pipeline. The backflush hood (10) is equipped with a backflush probe inside. The backflush hood (10) can be installed at the end of the main valve pipe (6).

8. A pressure vessel live sampling device according to claim 1, characterized in that: A sensor is provided on the ultrasonic probe collar (9), and the ultrasonic probe collar (9) is connected to an external ultrasonic controller via a connecting line.

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