Sampling opening structure

Abstract

The utility model relates to a sampling port structure which comprises a shell and a sampling port, the sampling port comprises an inner pipe and an outer pipe assembly, the outer pipe assembly comprises a first pipe section, a second pipe section, a third pipe section, a first flange, a second flange, a flange cover and an end cover, one end of the second pipe section is welded with the shell, and the other end of the second pipe section is welded with the end cover. The other end of the second pipe section is welded to the first flange, one end of the flange cover is welded to the first pipe section, the other end of the flange cover is welded to one end of the third pipe section, the other end of the third pipe section is welded to the second flange, and a first opening is formed in the inner pipe. A first opening is formed in the first pipe section of the outer pipe assembly, a second opening is formed in the first pipe section of the outer pipe assembly, the inner pipe can rotate relative to the outer pipe assembly, when the inner pipe is rotated, the first opening in the inner pipe can coincide with the second opening in the first pipe section of the outer pipe assembly, an operation handle is arranged on the outer side of the end cover, and therefore the structure is greatly simplified.

Description

Technical Field

[0001] The utility model relates to the field of reaction kettles, in particular to a sampling port structure for a reaction kettle.

Background Art

[0002] A reaction kettle is a container for physical or chemical reactions. Through the structural design and parameter configuration of the container, functions such as heating, evaporation, cooling, and mixing at low and high speeds required by the process are realized. It is a common container for physical or chemical reactions, and stirring blades are arranged inside it. In the prior art, a sampling port is usually opened on the reaction kettle, and when sampling, the sampler is inserted into the reaction kettle. However, in actual operation, during the reaction process, it is necessary to sample the solution in the reaction kettle multiple times. In order to avoid the sampler colliding with the stirring blades when inserted, the reaction kettle needs to be stopped for sampling repeatedly, which greatly reduces the work efficiency. Therefore, in order to solve this technical problem, technicians in this field later developed a new sampling port structure. Please refer to the prior art (CN217155939U). The sampling port structure includes a sampling tube connected below an extension tube. A stabilizing plate is arranged at the center of the sampling tube. A moving rod is slidably connected to the stabilizing plate. A telescopic spring is sleeved on the upper section of the moving rod. A threaded layer is arranged on the lower section of the moving rod. The top end of the moving rod is connected to a sealing plate. A convex ring is arranged on the sealing plate. A threaded sleeve is connected to the lower part of the sampling tube. The lower end of the moving rod is threadedly connected to the threaded sleeve. When sampling is required, the moving rod is rotated, and the moving rod drives the sealing plate to move downward. By rotating the moving rod to move, the sealing plate is pushed to close or open the discharge port of the extension tube. When the sealing plate moves downward, the solution flows into a collection bottle through a collection tube at the lower part of the sealing tube for storage. Although this sampling port structure solves the technical problem of being able to sample the solution in the reaction kettle without stopping the machine, its internal components are numerous, the structure is relatively complex, and the manufacturing cost is relatively high.

[0003] Therefore, it is necessary to provide a sampling port structure that solves the above technical problems.

Content of the Utility Model

[0004] To solve the above problems, the purpose of the utility model is to provide a sampling port structure with a simple structure and convenient installation.

[0005] To achieve the above object, the technical solution adopted by the present utility model is as follows: A sampling port structure, comprising: a housing and a sampling port provided on the housing, the sampling port comprising: an inner tube and an outer tube assembly provided outside the inner tube, the outer tube assembly comprising a first tube section, a second tube section, a third tube section, a first flange, a second flange, a flange cover and an end cover, one end of the second tube section is welded to the housing, the other end of the second tube section is welded to the first flange, one end of the flange cover is welded to the first tube section, the other end of the flange cover is welded to one end of the third tube section, the other end of the third tube section is welded to the second flange, the first flange and the flange cover are connected by a first fixing member, the second flange and the end cover are connected by a second fixing member, both the inner tube and the first tube section of the outer tube assembly protrude into the housing and are arranged at an angle of 60° - 70° with the barrel wall of the housing, a sealing plate is provided at the free end above the first tube section of the outer tube assembly, a first opening is provided on the inner tube, a second opening is provided on the first tube section of the outer tube assembly, the inner tube can rotate relative to the outer tube assembly, when the inner tube rotates, the first opening on the inner tube can coincide with the second opening on the first tube section of the outer tube assembly, a clamping groove is provided at the free end below the inner tube, a clamping block matching the clamping groove is provided on the inner side of the end cover, an operating handle is provided on the outer side of the end cover, a spacing ring is welded on the outer side of the inner tube, a blocking block is welded on the inner side of the outer tube assembly, and a slot matching the blocking block is provided on the spacing ring.

[0006] Preferably, a sampling port structure in the present utility model is further provided as: the blocking block is welded on the inner side of the third tube section of the outer tube assembly.

[0007] Preferably, a sampling port structure in the present utility model is further provided as: the number of the blocking blocks is two.

[0008] Preferably, a sampling port structure in the present utility model is further provided as: the number of slots on the spacing ring is two.

[0009] Preferably, a sampling port structure in the present utility model is further provided as: the opening angles of both the first opening and the second opening are 90°.

[0010] Preferably, a sampling port structure in the present utility model is further provided as: a first winding gasket is provided between the first flange and the flange cover.

[0011] Preferably, a sampling port structure in the present utility model is further provided as: a second winding gasket is provided between the second flange and the end cover.

[0012] Preferably, a sampling port structure in the present utility model is further provided as: both the inner tube and the first tube section of the outer tube assembly are arranged at an angle of 65° with the barrel wall of the housing.

[0013] Preferably, a sampling port structure in the utility model is further configured as follows: the first fixing member and the second fixing member are both studs and nuts.

[0014] Compared with the prior art, the utility model has the following beneficial effects: the sampling port in the utility model has a simple structure and is easy to install. By providing a first opening on the inner tube and a second opening on the first tube section of the outer tube assembly, the first opening and the second opening are overlapped and staggered by rotating the inner tube, thereby realizing the opening and closing of the sampling port. After the above improvement, the sampling port solves the technical problem and simplifies the structure, thereby reducing the manufacturing cost. The utility model provides a distance ring on the outer side of the inner tube, so that the inner tube is smoother when rotating. In addition, the utility model cooperates with the stopper of the outer tube assembly through the distance ring of the inner tube, so that the inner tube will not fall out of the outer tube assembly after installation.

Brief Description of the Drawings

[0015] Figure 1 It is a structural schematic diagram of the sampling port structure in the utility model.

[0016] Figure 2 It is a schematic diagram of the structure when the first opening and the second opening of the utility model are staggered.

[0017] Figure 3 For along Figure 2 Schematic diagram of the cross-sectional structure along line AA shown.

[0018] Figure 4 It is a structural schematic diagram when the first opening and the second opening in the utility model overlap.

[0019] Figure 5 For along Figure 4 Schematic diagram of the cross-sectional structure along line BB shown.

[0020] Figure 6 It is a schematic diagram of the structure in which the stopper and the distance ring cooperate.

[0021] Figure 7 This is a diagram showing the position of the distance ring slot and the block when installing the inner tube.

[0022] Figures 1 to 7 In: 1. shell, 2. inner tube, 20. first opening, 21. slot, 22. distance ring, 220. slot, 3. first pipe section, 30. sealing plate, 31. second opening, 4. second pipe section, 5. third pipe section, 50. stopper, 6. first flange, 7. second flange, 8. flange cover, 9. end cover, 90. block, 91. operating handle, 10. first fixing member, 11. second fixing member, 12. cylinder wall. [Specific implementation method]

[0023] The following further describes in detail a sampling port structure of the present utility model through specific embodiments.

[0024] Refer to Figures 1 to 7 As shown, a sampling port structure includes: a housing 1 and a sampling port provided on the housing 1. The sampling port includes: an inner tube 2 and an outer tube assembly provided outside the inner tube 2. The outer tube assembly includes a first tube section 3, a second tube section 4, a third tube section 5, a first flange 6, a second flange 7, a flange cover 8 and an end cover 9. One end of the second tube section 4 is welded to the housing 1, and the other end of the second tube section 4 is welded to the first flange 6. One end of the flange cover 8 is welded to the first tube section 3, and the other end of the flange cover 8 is welded to one end of the third tube section 5. The other end of the third tube section 5 is welded to the second flange 7. The first flange 6 and the flange cover 8 are connected by a first fixing member 10, and the second flange 7 and the end cover 9 are connected by a second fixing member 11. In this embodiment, the first fixing member 10 and the second fixing member 11 are both studs and nuts. A first winding gasket (not shown) is provided between the first flange 6 and the flange cover 8, and a second winding gasket (not shown) is provided between the second flange 7 and the end cover 9. The function of the first winding gasket and the second winding gasket is to make the sampling port have better sealing performance. The inner tube 2 and the first tube section 3 of the outer tube assembly both protrude into the housing 1 and are arranged at an angle of 60° - 70° with the barrel wall 12 of the housing 1. In this embodiment, specifically, it is arranged at an angle of 65°. The setting of this angle enables the medium to automatically flow downward along the inner tube 2. A sealing plate 30 is provided at the free end above the first tube section 3 of the outer tube assembly. A first opening 20 is provided on the inner tube 2, and a second opening 31 is provided on the first tube section 3 of the outer tube assembly. In this embodiment, the opening angles of the first opening 20 and the second opening 31 are both 90°. The inner tube 2 can rotate relative to the outer tube assembly. A clamping groove 21 is provided at the free end below the inner tube 2. A clamping block 90 matching the clamping groove 21 is provided on the inner side of the end cover 9. An operation handle 91 is provided on the outer side of the end cover 9. A spacing ring 22 is welded on the outer side of the inner tube 2. In this embodiment, a total of three spacing rings 22 are provided, two of which are arranged at positions above the inner tube 2 near the first opening 20, and the other one is arranged at the lower position of the inner tube 2. The function of the spacing ring 22 is to make the rotation of the inner tube 2 relative to the outer tube assembly smoother. Two stoppers 50 are welded on the inner side of the third tube section 5 of the outer tube assembly. The spacing ring 22 is provided with two notches 220 matching the stoppers 50. The cooperation of the stoppers 50 and the notches 220 can prevent the inner tube 2 from falling out after installation. Please refer to Figure 7, when the inner tube 2 is installed, the slot 220 on the distance ring 22 welded to the outer side of the inner tube 2 just passes through the stopper 50. After passing through, the inner tube 2 is rotated counterclockwise by 90°, so that the slot 220 on the distance ring 22 is staggered from the position of the stopper 50. In this way, due to the blockage of the stopper 50, the inner tube 2 will not fall out downward after installation.

[0025] The working principle of the sampling port structure in the present utility model is as follows: during normal operation, the first opening 20 on the inner tube 2 and the second opening 31 on the first pipe section 3 of the outer pipe assembly are arranged in a staggered manner (i.e., the sampling port is in a closed state), and the medium in the housing 1 cannot enter the sampling port. When sampling is required, the operating handle on the outer side of the end cover 9 is rotated counterclockwise by 180°. Since the clamping block 90 on the end cover 9 cooperates with the card slot 21 on the inner tube 2, the end cover 9 is rotated counterclockwise by 180° to drive the inner tube 2 to rotate synchronously counterclockwise by 180°. At this time, the first opening 20 on the inner tube 2 and the second opening 31 on the first pipe section 3 are arranged in a coincident manner (i.e., the sampling port is in an open state), and the medium in the housing 1 enters the inner tube 2. Since the inner tube 2 is also inclined, the medium flows downward along the inner tube 2 for sampling and detection.

[0026] In summary, the sampling port structure in the present utility model is simple and convenient to install. By providing the first opening 20 on the inner tube 2 and the second opening 31 on the first pipe section 3 of the outer pipe assembly, the coincidence and staggering of the first opening 20 and the second opening 31 are achieved by rotating the inner tube 2, so as to realize the opening and closing of the sampling port. After the above improvement, the sampling port simplifies the structure while solving the technical problems, thus reducing the manufacturing cost. The present utility model makes the rotation of the inner tube 2 smoother by providing the distance ring 22 on the outer side of the inner tube 2. In addition, the present utility model makes the inner tube 2 not fall out of the outer pipe assembly after installation by the cooperation of the distance ring 22 of the inner tube 2 and the stopper 50 of the outer pipe assembly.

[0027] The above embodiments only illustrate the principle and efficacy of the present invention creatively and some applied embodiments, rather than limiting the present invention; it should be pointed out that for those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A sampling port structure, comprising: A shell and a sampling port arranged on the shell, characterized in that: the sampling port comprises: an inner tube and an outer tube assembly arranged outside the inner tube, the outer tube assembly comprises a first tube section, a second tube section, a third tube section, a first flange, a second flange, a flange cover and an end cover, one end of the second tube section is welded to the shell, the other end of the second tube section is welded to the first flange, one end of the flange cover is welded to the first tube section, the other end of the flange cover is welded to one end of the third tube section, the other end of the third tube section is welded to the second flange, the first flange is connected to the flange cover by a first fixing member, the second flange is connected to the end cover by a second fixing member, the first tube section of the inner tube and outer tube assembly They all protrude into the shell and are set at an angle of 60° to 70° with the cylinder wall of the shell. A sealing plate is provided at the upper free end of the first pipe section of the outer tube assembly, a first opening is provided on the inner tube, and a second opening is provided on the first pipe section of the outer tube assembly. The inner tube can rotate relative to the outer tube assembly. When the inner tube is rotated, the first opening on the inner tube can overlap with the second opening on the first pipe section of the outer tube assembly. A groove is provided at the lower free end of the inner tube, a block matching the groove is provided on the inner side of the end cover, an operating handle is provided on the outer side of the end cover, a distance ring is welded on the outer side of the inner tube, a block is welded on the inner side of the outer tube assembly, and the distance ring is provided with a groove matching the block.

2. A sampling port structure according to claim 1, characterized in that: The stopper is welded to the inner side of the third pipe section of the outer pipe assembly.

3. A sampling port structure as claimed in claim 2, characterized in that: The number of the stoppers is two.

4. A sampling port structure according to claim 1, characterized in that: The number of slots on the distance ring is two.

5. A sampling port structure as claimed in claim 1, characterized in that: The opening angles of the first opening and the second opening are both 90°.

6. A sampling port structure according to claim 1, characterized in that: A first winding gasket is provided between the first flange and the flange cover.

7. A sampling port structure according to claim 1, characterized in that: A second winding gasket is provided between the second flange and the end cover.

8. A sampling port structure as claimed in claim 1, characterized in that: The first pipe sections of the inner pipe and outer pipe assemblies are both arranged at an angle of 65° with the cylinder wall of the shell.

9. A sampling port structure as claimed in claim 1, characterized in that: The first fixing member and the second fixing member are both studs and nuts.

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