Steam control valve for producing medical-grade guanidine hydrochloride

Abstract

The utility model relates to the technical field of steam control valves, in particular to a steam control valve for producing medical grade guanidine hydrochloride, which is characterized in that the upper end part of a reaction kettle is fixedly connected with a base, a circular ring is rotatably connected in the base, a guide groove is formed in the circular ring, a clamping block is slidably connected in the base, and a rubber pad is sleeved on the outer surface of the clamping block; the air cylinder is fixedly connected to the upper end of the reaction kettle and fixedly installed at the upper end of the reaction kettle in a flange connecting and bolt screwing mode, the air cylinder is started after installation is completed, and when an output shaft of the air cylinder stretches out, the circular ring is pushed to rotate in the base. In the rotating process of the circular ring, the clamping blocks are extruded and pushed through the guide grooves to slide towards the end close to the steam control valve body, in the sliding process of the six clamping blocks, the six clamping blocks are attached and clamped to the connecting position through rubber pads connected to the surfaces of the clamping blocks in a sleeving mode, additional supporting clamping is provided, the connecting position is wrapped through the rubber pads, the sealing performance of the connecting position is further improved, and the service life of the steam control valve is prolonged. And the risk of steam leakage is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of steam control valves, and particularly relates to a steam control valve for the production of medical-grade guanidine hydrochloride. Background Art

[0002] Medical-grade guanidine hydrochloride has important applications in the pharmaceutical field, and its production process requires precise control and stable conditions. The steam control valve plays a key role in this process, used to regulate the flow rate, pressure and temperature of steam to ensure the smooth progress of the production process. In practical applications, the steam control valve for the production of medical-grade guanidine hydrochloride usually requires the following technologies:

[0003] 1. High-precision flow regulation ability, capable of precisely controlling the steam flow rate to meet the strict requirements for temperature and reaction rate in the production process.

[0004] 2. Good sealing performance to prevent steam leakage and ensure the safety of the production environment and the product quality is not affected.

[0005] 3. Fast response speed, capable of adjusting the steam supply in a timely manner according to the changes in the production process.

[0006] 4. Durable material selection, capable of withstanding high temperature, high pressure and corrosive steam environment to ensure long-term stable operation.

[0007] 5. Reliable automatic control interface, facilitating integration with the automatic control equipment of the production system to achieve precise remote control.

[0008] Currently, to ensure the stability of the installation of the steam control valve, a variety of devices and methods are adopted. When some devices connect the steam control valve, they usually use flange plates with the same size and connect and fix them by screwing bolts.

[0009] However, there is a prominent problem with the above method. To ensure the installation stability, multiple bolts usually need to be screwed for connection during the flange plate installation. However, the sequence and tightness of screwing the bolts, as well as the loosening caused by vibration during subsequent use, all affect the installation stability. Fixed only by the flange plate and screwing bolts, the installation stability is insufficient, and it is easy to loosen during operation, and it is easy to cause slight leakage at the connection due to external force. Summary of the Utility Model

[0010] (I) Technical Problems to be Solved

[0011] In view of the deficiencies of the prior art, the utility model provides a steam control valve for the production of medical-grade guanidine hydrochloride, solving the technical problems that in order to ensure the stability of installation, flange installation usually requires screwing multiple bolts for connection. However, the sequence and tightness of screwing the bolts, as well as the loosening caused by vibration during subsequent use, all affect the stability of its installation. Fixed only by the flange and screwing bolts, the installation stability is insufficient, and it is easy to loosen during operation, and it is easy to cause slight leakage at the connection due to external force influence.

[0012] (II) Technical solution

[0013] To achieve the above objectives, the utility model is realized through the following technical solutions:

[0014] A steam control valve for the production of medical-grade guanidine hydrochloride, including a reaction kettle, the upper end of the reaction kettle is fixedly connected with a base, a ring is rotatably connected inside the base, a guiding groove is opened inside the ring, a clamping block is slidably connected inside the base, the clamping block is sleeved inside the guiding groove, a rubber pad is sleeved on the outer surface of the clamping block, and a driving mechanism is fixedly connected to the upper end of the reaction kettle, and the driving mechanism includes a cylinder, and the cylinder is fixedly connected to the upper end of the reaction kettle.

[0015] Preferably: a positioning groove is opened at the upper end of the reaction kettle.

[0016] Preferably: a limiting column is fixedly connected to the upper end of the reaction kettle.

[0017] Preferably: a steam control valve body is fixedly connected to the upper end of the reaction kettle.

[0018] Preferably: a connecting flange is fixedly connected to the outer surface of the steam control valve body.

[0019] Preferably: air inlet and outlet pipes are fixedly connected to both sides of the reaction kettle, and a through groove is opened inside the steam control valve body.

[0020] Preferably: a rotating shaft is opened inside the through groove, and a spherical fan blade is sleeved on the outer surface of the rotating shaft.

[0021] Preferably: a scraping plate is sleeved on the outer surface of the spherical fan blade.

[0022] (III) Beneficial effects

[0023] I. When installing the steam control valve body, it is fixedly installed at the upper end of the reactor by connecting the flange and screwing the bolts. After the installation is completed, the cylinder is started. The output shaft of the cylinder slides outwards. When the output shaft extends, it pushes the ring to rotate in the base. During the rotation of the ring, the clip is pushed to slide towards the end close to the steam control valve body through the guide groove. During the sliding of the six clips, they are clamped and held in contact with the connection through the rubber pads sleeved on their surfaces, providing additional support and clamping. While ensuring its stable installation, the connection is wrapped by the rubber pads, further improving the sealing performance of the connection, reducing the risk of steam leakage, and improving the energy utilization efficiency.

[0024] II. When steam enters the steam control valve body through the inlet and outlet pipes, the high-pressure steam will push the spherical fan blade to rotate around the rotating shaft. The spherical fan blade drives the scraper to rotate to scrape and clean the inner wall of the reactor, thereby removing the dirt and impurities in the valve, preventing their accumulation from affecting the cross-sectional area of the steam channel, ensuring the stable and accurate control of the steam flow, and the automatic cleaning operation can save maintenance costs and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and implement it according to the content of the specification, the following describes in detail with reference to the preferred embodiments of the present invention and the accompanying drawings.

[0026] Figure 1 is the three-dimensional structure diagram of the present invention;

[0027] Figure 2 is the exploded view of the cylinder connection of the present invention;

[0028] Figure 3 is the exploded view of the ring connection of the present invention;

[0029] Figure 4 is the exploded view of the spherical fan blade connection of the present invention.

[0030] Legend: 11, reactor; 12, base; 13, ring; 14, guide groove; 15, clip; 16, rubber pad; 17, cylinder; 18, positioning groove; 19, limit post; 21, steam control valve body; 22, connection flange; 23, inlet and outlet pipes; 24, through groove; 25, rotating shaft; 26, spherical fan blade; 27, scraper. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0031] In an embodiment of the present application, by providing a steam control valve for the production of medical-grade guanidine hydrochloride, it effectively solves the problem that in order to ensure the stability of installation, multiple bolts usually need to be screwed to connect the flange plates. However, the sequence and tightness of screwing the bolts, as well as the loosening caused by vibration during subsequent use, all affect the installation stability. Fixed only by the flange plate and the screwed bolts, the installation stability is insufficient, and it is easy to loosen during operation, which is likely to cause slight leakage at the connection due to external forces. When installing the steam control valve body, it is fixedly installed at the upper end of the reaction kettle by connecting the flange and screwing the bolts. After the installation is completed, the cylinder is started, and the output shaft of the cylinder slides outwards. When the output shaft extends, it pushes the ring to rotate in the base. During the rotation of the ring, the clip is pushed to slide towards the end close to the steam control valve body through the guide groove. During the sliding of the six clips, they are clamped in contact with the connection through the rubber pads sleeved on their surfaces, providing additional support and clamping. While ensuring its installation stability, the connection is wrapped by the rubber pads, further improving the sealing performance of the connection, reducing the risk of steam leakage, and improving the energy utilization efficiency.

[0032] Embodiment

[0033] Such as Figure 1 、 Figure 2 、 Figure 3 And Figure 4As shown in the figure, the technical solution in the embodiment of the present application effectively solves the technical problem that in order to ensure the installation stability, multiple bolts usually need to be screwed to connect the flange plate during installation. However, the sequence and tightness of screwing the bolts, as well as the loosening caused by vibration during subsequent use, all affect the installation stability. Fixed only by the flange plate and the screwed bolts, the installation stability is insufficient, and it is easy to loosen during operation, which is likely to cause slight leakage at the connection due to external force. The general idea is as follows: A steam control valve for the production of medical-grade guanidine hydrochloride includes a reaction kettle 11. The upper end of the reaction kettle 11 is fixedly connected with a base 12. Inside the base 12, a ring 13 is rotatably connected. Inside the ring 13, a guide groove 14 is opened. Inside the base 12, a clamping block 15 is slidably connected. The clamping block 15 is sleeved inside the guide groove 14. A rubber pad 16 is sleeved on the outer surface of the clamping block 15. The upper end of the reaction kettle 11 is fixedly connected with a driving mechanism. The driving mechanism includes a cylinder 17. The cylinder 17 is fixedly connected to the upper end of the reaction kettle 11. The ring 13 is rotatably connected inside the cylinder 17. The upper end of the reaction kettle 11 is provided with a positioning groove 18. The base 12 is fixedly connected inside the positioning groove 18. The upper end of the reaction kettle 11 is fixedly connected with a limiting column 19. The limiting column 19 and the ring 13 are on the same horizontal line. The upper end of the reaction kettle 11 is fixedly connected with a steam control valve body 21. The rubber pad 16 is sleeved on the outer surface of the steam control valve body 21. A connecting flange 22 is fixedly connected to the outer surface of the steam control valve body 21. When installing the steam control valve body 21, it is fixedly installed at the upper end of the reaction kettle 11 by means of the connecting flange 22 and screwed bolts. After the installation is completed, the cylinder 17 is started. The output shaft of the cylinder 17 slides outwards. When the output shaft extends, it pushes the ring 13 to rotate inside the base 12 (the output shaft of the cylinder 17 is sleeved on the outer surface of the ring 13 and is rotatably connected to it). During the rotation of the ring 13, the clamping block 15 is pushed by the guide groove 14 (the number of clamping blocks 15 is six, and the guide groove 14 is an inclined arc groove, which will push the clamping block 15 to slide during its rotation) to slide towards the end close to the steam control valve body 21. During the sliding of the six clamping blocks 15, the rubber pads 16 sleeved on their surfaces are used to fit and clamp the connection, providing additional support and clamping. While ensuring its installation stability, the connection is wrapped by the rubber pads 16 to further improve the sealing performance of the connection. When installing the base 12, the bottom of the base 12 is aligned with the positioning groove 18 for welding and fixing to achieve the effect of rapid positioning. During the rotation of the ring 13, it will be limited by the limiting column 19 to avoid excessive rotation, thereby improving the controllability of the device.

[0034] Both sides of the reaction kettle 11 are fixedly connected with the inlet and outlet gas pipes 23. The medical-grade guanidine hydrochloride material to be processed is put into the reaction kettle 11 (the reaction kettle 11 includes upper and lower hoppers). The steam flow is adjusted through the steam control valve body 21 installed at the upper end of the reaction kettle 11 to control the temperature inside the reaction kettle 11, providing suitable and stable temperature conditions for the chemical reaction, promoting the formation and growth of crystals, and obtaining ideal crystal morphology and purity. The steam control valve body 21 is fixedly installed by screwing bolts through the connecting flange 22 adapted to the reaction kettle 11. When in use, the steam control valve body 21 is connected to the two inlet and outlet gas pipes 23 through the connection method of the connecting flange 22 and bolts. The two inlet and outlet gas pipes 23 are respectively connected to the steam inlet pipeline and the exhaust pipeline for use.

[0035] A through groove 24 is opened inside the steam control valve body 21. A rotating shaft 25 is opened inside the through groove 24. A spherical fan blade 26 is sleeved on the outer surface of the rotating shaft 25. A scraping plate 27 is sleeved on the outer surface of the spherical fan blade 26. The scraping plate 27 is attached to the inner wall of the steam control valve body 21. During the use of the steam control valve body 21, steam inlet and outlet work is carried out through the inlet and outlet gas pipes 23 connected to both sides of it. When steam enters the steam control valve body 21 through the inlet and outlet gas pipes 23, the high-pressure steam will push the spherical fan blade 26 to rotate around the rotating shaft 25. The spherical fan blade 26 drives the scraping plate 27 to rotate to scrape and clean the inner wall of the reaction kettle 11 (the scraping plate 27 is made of special rubber material resistant to chemical corrosion, has a certain elasticity, can better fit the inner wall of the reaction kettle 11, and is not easy to damage the inner wall), so as to remove the dirt and impurities in the valve, avoid their accumulation from affecting the cross-sectional area of the steam channel, thus ensuring the stable and accurate control of the steam flow, and the automatic cleaning operation can save maintenance costs and time.

[0036] In view of the problems existing in the prior art, the present utility model provides a steam control valve for the production of medical-grade guanidine hydrochloride. When installing the steam control valve body 21, it is fixedly installed at the upper end of the reaction kettle 11 by means of the connecting flange 22 and screwing bolts. After the installation is completed, the air cylinder 17 is started. The output shaft of the air cylinder 17 slides outwards. When the output shaft extends out, it pushes the ring 13 to rotate inside the base 12. During the rotation of the ring 13, the clamping block 15 is pushed to slide towards the end close to the steam control valve body 21 through the guide groove 14. During the sliding of the six clamping blocks 15, the rubber pads 16 sleeved on their surfaces are attached and clamped to the connection part, providing additional support and clamping. While ensuring its stable installation, the connection part is wrapped by the rubber pads 16, further improving the sealing performance of the connection part, reducing the risk of steam leakage, and improving the energy utilization efficiency.

[0037] Working principle:

[0038] First step, put the medical-grade guanidine hydrochloride material to be processed into the reaction kettle 11 (the reaction kettle 11 includes upper and lower hoppers). Adjust the steam flow through the steam control valve body 21 installed at the upper end of the reaction kettle 11 to control the temperature inside the reaction kettle 11, provide suitable and stable temperature conditions for the chemical reaction, promote the formation and growth of crystals, and obtain ideal crystal morphology and purity. The steam control valve body 21 is fixedly installed by screwing bolts through the connecting flange 22 adapted to the reaction kettle 11. When in use, the steam control valve body 21 is connected to the two air inlet and outlet pipes 23 through the connection method of the connecting flange 22 and bolts. The two air inlet and outlet pipes 23 are respectively connected to the steam inlet pipe and the exhaust pipe for use.

[0039] Second step, when installing the steam control valve body 21, fix it to the upper end of the reaction kettle 11 by means of the connecting flange 22 and screwing bolts. After the installation is completed, start the cylinder 17. The output shaft of the cylinder 17 slides outwards. When the output shaft extends, it pushes the ring 13 to rotate in the base 12 (the output shaft of the cylinder 17 is sleeved on the outer surface of the ring 13 and is rotatably connected to it). During the rotation of the ring 13, the clamping block 15 is pushed by the guide groove 14 (the number of clamping blocks 15 is six, and the guide groove 14 is an inclined arc groove, which will push the clamping block 15 to slide during its rotation) to slide towards the end close to the steam control valve body 21. During the sliding of the six clamping blocks 15, the rubber pads 16 sleeved on their surfaces are used to fit and clamp the connection, providing additional support and clamping. While ensuring its stable installation, the connection is wrapped by the rubber pads 16 to further improve the sealing performance of the connection. When installing the base 12, align the bottom of the base 12 with the positioning groove 18 for welding and fixing to achieve the effect of rapid positioning. During the rotation of the ring 13, it will be limited by the limit post 19 to avoid excessive rotation, thereby improving the controllability of the device. During the use of the steam control valve body 21, steam inlet and outlet operations are carried out through the air inlet and outlet pipes 23 connected to its two sides. When steam enters the steam control valve body 21 through the air inlet and outlet pipes 23, the high-pressure steam will push the spherical fan blade 26 to rotate around the rotating shaft 25. The spherical fan blade 26 drives the scraper 27 to rotate to scrape and clean the inner wall of the reaction kettle 11 (the scraper 27 is made of special rubber material resistant to chemical corrosion, has a certain elasticity, can better fit the inner wall of the reaction kettle 11, and is not easy to damage the inner wall), thereby removing the dirt and impurities in the valve, avoiding their accumulation from affecting the cross-sectional area of the steam channel, ensuring the stable and accurate control of the steam flow, and the automatic cleaning operation can save maintenance costs and time.

[0040] Finally, it should be noted that: Obviously, the above embodiments are merely examples given to clearly illustrate the present utility model, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present utility model.

Claims

1. A steam control valve for the production of medical-grade guanidine hydrochloride, comprising a reaction kettle (11), wherein the upper end of the reaction kettle (11) is fixedly connected with a base (12), and it is characterized in that, A ring (13) is rotatably connected inside the base (12). A guiding groove (14) is formed inside the ring (13). A clamping block (15) is slidably connected inside the base (12). The clamping block (15) is sleeved inside the guiding groove (14). A rubber pad (16) is sleeved on the outer surface of the clamping block (15). Among them, a driving mechanism is fixedly connected to the upper end of the reactor (11). The driving mechanism includes a cylinder (17), and the cylinder (17) is fixedly connected to the upper end of the reactor (11).

2. The steam control valve for the production of medical-grade guanidine hydrochloride according to claim 1, wherein The ring (13) is rotatably connected inside the cylinder (17). Among them, a positioning groove (18) is formed at the upper end of the reactor (11).

3. The steam control valve for the production of medical-grade guanidine hydrochloride according to claim 2, characterized in that, The base (12) is fixedly connected inside the positioning groove (18). Among them, a limiting column (19) is fixedly connected to the upper end of the reactor (11).

4. The steam control valve for the production of medical-grade guanidine hydrochloride according to claim 3, characterized in that, The limiting column (19) and the ring (13) are on the same horizontal line. Among them, a steam control valve body (21) is fixedly connected to the upper end of the reactor (11).

5. The steam control valve for the production of medical-grade guanidine hydrochloride according to claim 4, characterized in that, The rubber pad (16) is sleeved on the outer surface of the steam control valve body (21). Among them, a connecting flange (22) is fixedly connected to the outer surface of the steam control valve body (21).

6. The steam control valve for the production of medical-grade guanidine hydrochloride according to claim 5, wherein Both sides of the reactor (11) are fixedly connected with inlet and outlet gas pipes (23). Among them, a through groove (24) is formed inside the steam control valve body (21).

7. The steam control valve for the production of medical-grade guanidine hydrochloride according to claim 6, wherein A rotating shaft (25) is arranged inside the through groove (24). Among them, a spherical fan blade (26) is sleeved on the outer surface of the rotating shaft (25).

8. A steam control valve for the production of medical-grade guanidine hydrochloride according to claim 7, characterized in that, A scraping plate (27) is sleeved on the outer surface of the spherical fan blade (26). Among them, the scraping plate (27) is in fit with the inner wall of the steam control valve body (21).

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