Vacuum tube for producing industrial-grade guanidine hydrochloride

Abstract

The utility model relates to the technical field of vacuum tubes, in particular to a vacuum tube for producing industrial-grade guanidine hydrochloride, which comprises a connecting vacuum tube and a butt-joint vacuum tube, connecting flanges are fixedly connected to close ends of the connecting vacuum tube and the butt-joint vacuum tube, and a sealing sleeve is fixedly connected to one end of the butt-joint vacuum tube close to the connecting vacuum tube. By arranging the anti-loosening mechanism, the mounting plate and the three limiting sleeves are in butt joint with three bolts, rotation stopping grooves formed in the three limiting sleeves are connected with the bolts in a sleeving mode, the limiting sleeves are arranged based on the parallel bearings, the limiting sleeves can rotate to be matched with bolt heads, and after butt joint of the rotation stopping grooves and the bolt heads is completed, the bolts can be fixed through the bolts. The fixed threaded bolt can be in threaded connection through the threaded hole, so that the fixed threaded bolt extrudes the limiting sleeve, the limiting sleeve is fixed to stop rotation, the bolt is fixed to stop rotation through the limiting sleeve, the bolt is prevented from loosening, and the problem that an existing vacuum tube applied to industrial-grade guanidine hydrochloride production is prone to air leakage is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum tubes, in particular to a vacuum tube for producing industrial-grade guanidine hydrochloride. Background Art

[0002] Industrial-grade guanidine hydrochloride has a wide range of applications in the chemical, pharmaceutical, and other fields. Its production process typically involves multiple steps and complex process conditions. Vacuum tubes, as crucial conveying and handling equipment, play a key role in maintaining specific production requirements (such as vacuum levels). The stable operation of vacuum tubes is directly related to the production efficiency, product quality, and safety of industrial-grade guanidine hydrochloride.

[0003] Vacuum tube flange connections are a key method for connecting different sections of vacuum tubes. The stability and tightness of these connections are crucial to the proper operation of the vacuum tube system. A stable connection ensures the vacuum level within the tube is maintained, preventing gas leakage and the ingress of foreign matter, thereby ensuring that the industrial-grade guanidine hydrochloride production process operates within the required vacuum environment. Furthermore, a good connection can withstand the various stresses and pressure fluctuations that may occur during production, preventing production interruptions or safety incidents caused by failures in the connection.

[0004] Currently, existing vacuum tubes used in the production of industrial-grade guanidine hydrochloride have been found to have at least the following technical problems: When used in the production of industrial-grade guanidine hydrochloride, existing vacuum tubes are mostly connected via flanges. The two butt-jointing tubes and the two flanges of the connecting tube are often fixedly connected by bolts and nuts. During the production of industrial-grade guanidine hydrochloride, the vacuum tubes are subject to minute vibrations from the operation of power equipment such as pumps and compressors connected thereto. Temperature fluctuations are common during the production of industrial-grade guanidine hydrochloride. Different materials (such as the materials of bolts, nuts, flanges, and the vacuum tubes themselves) have different coefficients of thermal expansion. When the temperature rises or falls, these components expand or contract to varying degrees. For example, when the temperature rises, the bolts may expand faster than the nuts, or the bolts and flanges may expand at different rates. This changes the preload force of the bolts, loosening the previously secure connection, and further loosening the two flanges of the butt-jointing tube and the connecting tube, causing air leakage between the butt-jointing tube and the connecting tube. Therefore, existing vacuum tubes used in the production of industrial-grade guanidine hydrochloride are prone to air leakage. Utility Model Content

[0005] (1) Technical problems solved

[0006] In view of the deficiencies in the prior art, the utility model provides a vacuum tube for the production of industrial-grade guanidine hydrochloride, which solves the technical problem that the existing vacuum tubes used in the production of industrial-grade guanidine hydrochloride are prone to air leakage.

[0007] (2) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A vacuum tube for producing industrial-grade guanidine hydrochloride comprises a connecting vacuum tube and a docking vacuum tube. The connecting vacuum tube and the docking vacuum tube have ends that are close to each other fixedly connected with a connecting flange. Six matching bolts and nuts are provided between the two connecting flanges. The docking vacuum tube has an end that is close to the connecting vacuum tube that is fixedly connected with a sealing sleeve. A sealing gasket is fixedly connected to the outer side of the sealing sleeve. Two fixing frames are fixedly connected to the outer wall of the connecting vacuum tube. Both fixing frames are connected with an anti-loosening mechanism. The anti-loosening mechanism comprises a mounting plate. The mounting plate is fan-shaped. The inner curved surface of the mounting plate fits the docking vacuum tube.

[0010] Preferably, three mounting grooves are provided on the surface of the mounting plate, a threaded hole is provided at the axis center of the bottom of the mounting groove, and a fixing threaded bolt is threadedly connected in the threaded hole.

[0011] Preferably, a parallel bearing is fixedly connected to the bottom surface of the installation groove, a limiting sleeve is fixedly connected to the top surface of the parallel bearing, and the bottom surface of the limiting sleeve is squeezed and connected to the fixed threaded bolt.

[0012] Preferably, a stop groove is provided at one end of the limiting sleeve away from the parallel bearing, and the stop groove is adapted to the bolt adapted to the connecting flange, and the stop groove can be customized before leaving the factory.

[0013] Preferably, the mounting plate is fixedly connected to a connecting rod, the connecting rod is L-shaped, and one end of the connecting rod away from the mounting plate is fixedly connected to a threaded rod.

[0014] Preferably, the two fixing frames are each provided with a through hole at one end away from the vacuum tube, and the two threaded rods are respectively sleeved with the two through holes at one end away from the connecting rod.

[0015] Preferably, the sealing sleeve is connected to the interior of the vacuum tube.

[0016] Preferably, one end of the two threaded rods passing through the through holes is threadedly connected with a hexagonal nut.

[0017] (3) Beneficial effects

[0018] 1. The present application provides an anti-loosening mechanism, and connects the mounting plate together with three limit sleeves with three of the bolts, so that the anti-rotation grooves provided on the three limit sleeves are connected with the bolt sleeves. The limit sleeves are set based on the parallel bearing, so that the limit sleeves can be rotated to adapt to the bolt head. When the anti-rotation grooves are connected with the bolt heads, the fixed threaded bolts can be threadedly connected through the threaded holes, so that the fixed threaded bolts squeeze the limit sleeves, so that the limit sleeves are fixed and prevented from rotating. The limit sleeves fix the bolts and prevent them from loosening, thereby solving the problem that the existing vacuum tubes used in the production of industrial-grade guanidine hydrochloride are prone to air leakage.

[0019] 2. In this application, an anti-loosening mechanism is provided so that the mounting plate can support the connecting flange connected to the docking vacuum tube, making it difficult for the connecting flange to be out of contact with another connecting flange, thereby making this application more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and to implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings.

[0021] Figure 1 This is a structural diagram of the overall installation state of the device of the utility model;

[0022] Figure 2 This is a structural diagram of the overall installation process of the device of the utility model;

[0023] Figure 3 This is the explosion structure diagram of the anti-loosening mechanism of the utility model;

[0024] Figure 4 This is a structural diagram of the connecting vacuum tube and the docking vacuum tube of the utility model;

[0025] Figure 5 For this utility model Figure 3 A magnified structure diagram.

[0026] Legend: 1. Connecting vacuum tube; 2. Fixing bracket; 3. Docking vacuum tube; 4. Anti-loosening mechanism; 5. Connecting flange; 6. Hexagonal nut; 7. Fixing threaded bolt; 201. Through hole; 301. Sealing gasket; 302. Sealing sleeve; 401. Mounting plate; 402. Mounting groove; 403. Threaded hole; 404. Parallel bearing; 405. Limit sleeve; 406. Stop groove; 407. Connecting rod; 408. Threaded rod. DETAILED DESCRIPTION

[0027] The embodiment of the present application provides a vacuum tube for the production of industrial-grade guanidine hydrochloride, which effectively solves the problem that the existing vacuum tubes used in the production of industrial-grade guanidine hydrochloride are prone to leakage.

[0028] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that the existing vacuum tubes used in the production of industrial-grade guanidine hydrochloride are prone to leakage. The overall idea is as follows:

[0029] In response to the problems existing in the prior art, the utility model provides a vacuum tube for the production of industrial-grade guanidine hydrochloride, including a connecting vacuum tube 1 and a docking vacuum tube 3, the ends of the connecting vacuum tube 1 and the docking vacuum tube 3 being fixedly connected with a connecting flange 5, six matching bolts and nuts are arranged between the two connecting flanges 5, the end of the docking vacuum tube 3 close to the connecting vacuum tube 1 is fixedly connected with a sealing sleeve 302, the outer side of the sealing sleeve 302 is fixedly connected with a sealing gasket 301, the outer wall of the connecting vacuum tube 1 is fixedly connected with two fixing frames 2, and the two fixing frames 2 are both connected with an anti-loosening mechanism 4, and the anti-loosening mechanism 4 includes a mounting plate 401, the mounting plate 401 is fan-shaped, and the inner curved surface of the mounting plate 401 fits with the docking vacuum tube 3.

[0030] Three mounting grooves 402 are formed on the surface of the mounting plate 401 . A threaded hole 403 is formed at the axis of the bottom of the mounting groove 402 . A fixing threaded bolt 7 is connected to the inner thread of the threaded hole 403 .

[0031] A parallel bearing 404 is fixedly connected to the bottom surface of the installation groove 402 , a limiting sleeve 405 is fixedly connected to the top surface of the parallel bearing 404 , and the bottom surface of the limiting sleeve 405 is squeezed and connected to the fixing threaded bolt 7 .

[0032] A stop groove 406 is provided at one end of the limiting sleeve 405 away from the parallel bearing 404 . The stop groove 406 is matched with the bolts matched with the connecting flange 5 . The stop groove 406 can be customized before leaving the factory.

[0033] The mounting plate 401 is fixedly connected to a connecting rod 407 . The connecting rod 407 is L-shaped, and one end of the connecting rod 407 away from the mounting plate 401 is fixedly connected to a threaded rod 408 .

[0034] The two fixing frames 2 are each provided with a through hole 201 at one end away from the vacuum tube 1 , and the two threaded rods 408 are respectively sleeved with one end away from the connecting rod 407 in the two through holes 201 .

[0035] The sealing sleeve 302 is connected to the interior of the vacuum tube 1 .

[0036] One end of the two threaded rods 408 passing through the through hole 201 is threadedly connected with a hexagonal nut 6 .

[0037] By providing an anti-loosening mechanism 4, the mounting plate 401 together with the three limiting sleeves 405 are docked with three of the bolts, so that the anti-rotation grooves 406 provided on the three limiting sleeves 405 are engaged with the bolts. The limiting sleeves 405 are set based on the parallel bearing 404, so that the limiting sleeves 405 can be rotated to adapt to the bolt head. When the anti-rotation grooves 406 are docked with the bolt head, the fixed threaded bolt 7 can be threadedly connected through the threaded hole 403, so that the fixed threaded bolt 7 squeezes the limiting sleeve 405, so that the limiting sleeve 405 is fixed and stopped from rotating. The limiting sleeve 405 fixes the bolts and stops them from rotating, preventing the bolts from loosening, thereby solving the problem of the existing vacuum tubes used in the production of industrial-grade guanidine hydrochloride being prone to air leakage.

[0038] Working principle:

[0039] In the first step, the connecting flange 5 of the connecting vacuum tube 1 and the docking vacuum tube 3 are first docked, and the sealing sleeve 302 is inserted into the interior of the connecting vacuum tube 1, and cooperates with the sealing gasket 301 to play a sealing role. Then, the two connecting flanges 5 are fixed with the corresponding bolts and nuts. At this time, the connecting vacuum tube 1 and the docking vacuum tube 3 are connected. Then, the two anti-loosening mechanisms 4 are connected to the fixing frame 2, and the bolts and nuts are fixed by the anti-loosening mechanisms 4.

[0040] In the second step, the specific installation process of the anti-loosening mechanism 4 is to first connect the mounting plate 401 together with the three limiting sleeves 405 with three of the bolts, so that the anti-rotation grooves 406 opened by the three limiting sleeves 405 are engaged with the bolts. The size and shape of the anti-rotation grooves 406 can be adapted to the bolt heads before leaving the factory. In the process of engaging the anti-rotation grooves 406 with the bolts, the threaded rod 408 passes through the through hole 201, and then the threaded rod 408 is fixed by the hexagonal nut 6, thereby fixing the position of the connecting rod 407 and the mounting plate 401. Since the mounting plate 401 is fan-shaped and fits the outer wall of the docking vacuum tube 3, the mounting plate 401 will not rotate at will, thereby completing the fixing operation of the bolts.

[0041] In the third step, the limiting sleeve 405 is set based on the parallel bearing 404 so that the limiting sleeve 405 can be rotated to adapt to the bolt head. When the anti-rotation groove 406 is connected to the bolt head, the fixed threaded bolt 7 can be threadedly connected through the threaded hole 403 so that the fixed threaded bolt 7 squeezes the limiting sleeve 405, so that the limiting sleeve 405 is fixed and prevented from rotating.

[0042] Finally, it should be noted that the above embodiments are merely examples for the purpose of illustrating the present invention and are not intended to limit the embodiments. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A vacuum tube for industrial-grade guanidine hydrochloride production, comprising a connecting vacuum tube (1) and a docking vacuum tube (3), wherein the connecting vacuum tube (1) and the docking vacuum tube (3) are both fixedly connected with a connecting flange (5) at one end thereof, characterized in that: The butting vacuum tube (3) is fixedly connected to one end thereof close to the connecting vacuum tube (1) with a sealing sleeve (302), the outer side of the sealing sleeve (302) is fixedly connected to a sealing gasket (301), the outer wall of the connecting vacuum tube (1) is fixedly connected to two fixing frames (2), and both fixing frames (2) are connected to an anti-loosening mechanism (4); Wherein, the anti-loosening mechanism (4) comprises a mounting plate (401), and the mounting plate (401) is fan-shaped.

2. The industrial-grade vacuum tube for producing guanidine hydrochloride according to claim 1, wherein: The surface of the mounting plate (401) is provided with three mounting grooves (402), the axis of the bottom of the mounting groove (402) is provided with a threaded hole (403), and the threaded inner portion of the threaded hole (403) is connected with a fixing threaded bolt (7).

3. The vacuum tube for industrial-grade guanidine hydrochloride production according to claim 2, wherein: The inner bottom surface of the installation groove (402) is fixedly connected to a parallel bearing (404), the top surface of the parallel bearing (404) is fixedly connected to a limiting sleeve (405), and the bottom surface of the limiting sleeve (405) is extruded and connected to a fixed threaded bolt (7).

4. The vacuum tube for industrial-grade guanidine hydrochloride production according to claim 3, characterized in that: A rotation-stop groove (406) is provided at one end of the limiting sleeve (405) away from the parallel bearing (404).

5. The industrial-grade vacuum tube for producing guanidine hydrochloride according to claim 4, characterized in that: The mounting plate (401) is fixedly connected to a connecting rod (407), the connecting rod (407) is L-shaped, and one end of the connecting rod (407) away from the mounting plate (401) is fixedly connected to a threaded rod (408).

6. The industrial-grade vacuum tube for producing guanidine hydrochloride according to claim 5, characterized in that: The ends of the two fixing frames (2) away from the connection vacuum tube (1) are each provided with a through hole (201), and the ends of the two threaded rods (408) away from the connection rod (407) are respectively sleeved with the two through holes (201).

7. The industrial-grade vacuum tube for producing guanidine hydrochloride according to claim 1, characterized in that: The sealing sleeve (302) is deeply connected to the interior of the vacuum tube (1).

8. The industrial-grade vacuum tube for producing guanidine hydrochloride according to claim 6, characterized in that: One end of the two threaded rods (408) passing through the through hole (201) is threadedly connected with a hexagonal nut (6).

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