Enamel reaction kettle pH meter sleeve structure capable of being pulled out section by section

Abstract

The utility model provides an enamel reaction kettle pH meter sleeve structure capable of being pulled out in a segmented manner, which belongs to the technical field of chemical reaction equipment and comprises a protective sleeve, a connecting sleeve and an anti-falling component. The protective sleeve is downwards inserted into the enamel reaction kettle and is connected with the enamel reaction kettle by virtue of a flange; the connecting sleeve comprises a plurality of sections of insertion pipes, the plurality of sections of insertion pipes are sequentially connected and arranged in the protective sleeve in a penetrating manner, every two adjacent sections of insertion pipes are detachably connected, the upper end of the insertion pipe at the uppermost end is provided with an insertion flange, and the lower end of the insertion pipe at the lowermost end is provided with a pH probe; the anti-disengaging assembly comprises a pipe clamp and a damping sleeve. According to the enamel reaction kettle pH meter sleeve structure capable of being pulled out in the segmented mode, the connecting sleeve is of a segmented connecting structure, and the enamel reaction kettle pH meter sleeve structure is suitable for working in a low and narrow limited space; the risk that the pH meter falls off when the insertion tube is pulled out is eliminated through the arrangement of the tube clamp; the operation difficulty and workload of pH meter calibration are greatly reduced, meanwhile, additional equipment pipelines are not needed, and the engineering cost is low.

Description

TECHNICAL FIELD

[0001] The utility model belongs to chemical reaction equipment technical field, more specifically, relate to a kind of segmentable pull-out enameled reaction kettle pH meter sleeve structure. BACKGROUND

[0002] The abnormality of pH value in chemical reaction not only reduces product yield and quality, but also may cause safety hazards such as over-temperature and over-pressure of reaction system. Therefore, it is usually necessary to monitor the pH value of the reaction solution in the enameled reaction kettle in real time, and control the feed valve according to the change of the pH value to control the reaction process or prevent the occurrence of reaction out of control.

[0003] The enameled reaction kettle as a complete set of equipment cannot be inserted with pH meter through side wall hole, and can only be inserted with pH meter provided with metal lining plastic sleeve at the top. The top insertion type fixes the pH meter probe at the lower end of the enameled metal lining plastic sleeve, and fixes the sleeve by the top flange. Each time the pH meter is calibrated, the sleeve needs to be pulled out as a whole. The length of the sleeve usually reaches more than 2m, and the weight of the tube body usually reaches more than 20kg. Each time the calibration is carried out, the sleeve needs to be pulled out as a whole in the narrow operation space, which has high operation difficulty and safety hazards. In addition, frequent disassembly may cause wear of the flange seal, and increase the risk of leakage. SUMMARY

[0004] The utility model aims at providing a kind of segmentable pull-out enameled reaction kettle pH meter sleeve structure, to solve the problem of difficult calibration and removal of pH meter.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a kind of segmentable pull-out enameled reaction kettle pH meter sleeve structure, comprising:

[0006] The protective sleeve is inserted into the enameled reaction kettle downwardly and connected with the enameled reaction kettle, and the lower end of the protective sleeve is communicated with the inner cavity of the enameled reaction kettle through hole;

[0007] The connecting sleeve includes multiple insertion tubes, the multiple insertion tubes are connected in sequence and arranged in the protective sleeve, the adjacent two insertion tubes are detachably connected, the upper end of the uppermost insertion tube is provided with a connecting flange, and the lower end of the lowermost insertion tube is provided with a pH probe, and the pH probe is located in the inner cavity of the protective sleeve;

[0008] The anti-dropping assembly includes a tube clamp, the tube clamp is located above the protective sleeve, the tube clamp is used for clamping the insertion tube, and the outer diameter of the tube clamp is greater than the inner diameter of the protective sleeve.

[0009] As another embodiment of the present application, the adjacent two insertion tubes are connected through thread connection or clamping connection.

[0010] As another embodiment of the present application, the interface between two adjacent sections of the insertion tube is provided with a locking gasket.

[0011] As another embodiment of the present application, the connecting sleeve further comprises:

[0012] An electrode protection sleeve is threadedly connected to the lowermost insertion tube, the electrode protection sleeve has an axial through hole, and the working end of the pH probe extends into the inner cavity of the through hole;

[0013] A sealing ring is located in the inner cavity of the through hole, and the sealing ring is attached to the outer sidewall of the pH probe and the sidewall of the through hole;

[0014] The tail end of the pH probe is located in the inner cavity of the insertion tube, and the working end of the pH probe extends below the sealing ring.

[0015] As another embodiment of the present application, the tube clamp comprises:

[0016] A clamp body has two clamping pieces and a hinge joint, both clamping pieces are arc-shaped sheet structures with two arc-shaped openings arranged opposite to each other; the first ends of the two clamping pieces are respectively connected to the two ends of the hinge joint, and the second ends of the two clamping pieces have outwardly protruding extension parts;

[0017] A fastener is connected to the two extension parts for limiting the rotation of the clamping pieces.

[0018] As another embodiment of the present application, the tube clamp further comprises:

[0019] An elastic ring is sleeved on the outer side of the clamp body, the elastic ring has a connecting gap, and the two ends of the elastic ring are respectively connected to the two extension parts;

[0020] A buffer pad is located on the inner side of the clamping piece, and the buffer pad is used to attach to the outer sidewall of the insertion tube.

[0021] As another embodiment of the present application, the protective sleeve comprises:

[0022] A first tube section extends into the enamel reaction kettle, and the top end of the first tube section has a first flange for connecting the enamel reaction kettle;

[0023] A second tube section is connected to the upper end of the first tube section, and the upper end of the second tube section has a second flange for bearing the connecting flange.

[0024] As another embodiment of the present application, the anti-disengagement assembly further comprises:

[0025] A damping sleeve is located at the inner side wall of the second pipe segment, and the inner diameter of the damping sleeve is matched with the outer diameter of the insertion pipe; the damping sleeve has a barb structure inside, which is matched with the outer side wall of the insertion pipe, and the barb structure extends upwardly and obliquely.

[0026] As another embodiment of the present application, the included angle between the extending direction of the barb structure and the side wall of the damping sleeve is 10°-30°.

[0027] The pH meter sleeve structure capable of being pulled out in sections has the advantages that, compared with the prior art, the pH meter sleeve structure capable of being pulled out in sections of the utility model, the connecting sleeve connected with the pH meter is inserted into the protective sleeve, the pH probe is ensured to be located in the inner cavity of the protective sleeve, the adverse effects of high-temperature vortex in the reaction kettle are avoided, and the safety of the equipment is high; the connecting sleeve adopts a sectional connection structure, the insertion pipe can be pulled out in sections each time when the pH meter is calibrated, the operation is convenient and simple, and the operation can be performed in a low and narrow limited space; the sleeve top is provided with a pipe clamp, and the risk of falling of the pH meter when the insertion pipe is pulled out is eliminated; the sleeve structure greatly saves the equipment cost, greatly reduces the operation difficulty and workload of pH meter calibration, and does not need to additionally increase the equipment pipeline, and the engineering cost is low. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0029] Figure 1 The mounting schematic view of the pH meter sleeve structure capable of being pulled out in sections of the utility model embodiment is provided;

[0030] Figure 2 The structure schematic view of the pH meter sleeve structure capable of being pulled out in sections of the utility model embodiment is provided;

[0031] Figure 3 The structure schematic view of the protective sleeve of the utility model embodiment is provided;

[0032] Figure 4 The structure schematic view of the connecting sleeve of the utility model embodiment is provided;

[0033] Figure 5 The structure schematic view of the pipe clamp of the utility model embodiment is provided;

[0034] Figure 6 The structure diagram of the damping sleeve is provided for the embodiment of the utility model.

[0035] In the drawing: 1, enamel reactor; 2, protective sleeve; 3, first pipe section; 4, first flange; 5, second pipe section; 6, second flange; 7, inserted pipe; 8, connecting flange; 9, damping sleeve; 10, electrode protection sleeve; 11, sealing ring; 12, pH probe; 13, clamping piece; 14, extension; 15, elastic ring; 16, hinged joint; 17, buffer pad; 18, rubber flange; 19, barb structure. DETAILED DESCRIPTION

[0036] In order to make the technical problems, technical schemes and beneficial effects of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model.

[0037] Please refer to Figures 1 to 6 The segmented pull-out enamel reactor pH probe sleeve structure provided by the utility model will be described. The segmented pull-out enamel reactor pH probe sleeve structure comprises a protective sleeve 2, a connecting sleeve and an anti-drop assembly. The protective sleeve 2 is inserted downward into the enamel reactor 1 and connected with the enamel reactor 1. The lower end of the protective sleeve 2 is in communication with the inner cavity of the enamel reactor 1. The connecting sleeve comprises multiple inserted pipes 7. The multiple inserted pipes 7 are connected in sequence and arranged in the protective sleeve 2. Adjacent two inserted pipes 7 are detachably connected. The upper end of the uppermost inserted pipe 7 is provided with a connecting flange 8. The lower end of the lowermost inserted pipe 7 is provided with a pH probe 12. The pH probe 12 is located in the inner cavity of the protective sleeve 2. The anti-drop assembly comprises a pipe clamp. The pipe clamp is located above the protective sleeve 2. The pipe clamp is used for clamping the inserted pipe 7. The outer diameter of the pipe clamp is greater than the inner diameter of the protective sleeve 2.

[0038] The protective sleeve 2 is inserted into the inner cavity of the enamel reactor 1 from the top of the enamel reactor 1. Then the multiple inserted pipes 7 are connected in sequence to form a connecting sleeve which is inserted into the protective sleeve 2. The pH probe 12 is located at the lower end of the connecting sleeve and used for measuring the pH value of the liquid in the enamel reactor 1. The pipe clamp is located above the protective sleeve 2. When the inserted pipes 7 are detached in sections, the pipe clamp can be used to clamp and fix the remaining inserted pipes 7, so as to avoid the remaining inserted pipes 7 from falling into the enamel reactor 1.

[0039] Compared with the prior art, the connecting sleeve pipe of the pH meter is inserted into the protective sleeve pipe 2, the pH probe 12 is located in the inner cavity of the protective sleeve pipe 2, the adverse effect of high-temperature vortex in the reaction kettle is avoided, and the safety of the equipment is high; the connecting sleeve pipe adopts a segmented connection structure, the insertion pipe 7 can be segmented and pulled out each time the pH meter is calibrated, operation in a low, narrow and limited space is suitable, and the operation is convenient and simple; the pipe clamp is arranged at the top of the sleeve pipe, and the risk of the pH meter falling off when the insertion pipe 7 is pulled out is eliminated; the sleeve pipe structure greatly saves the equipment cost, greatly reduces the operation difficulty and workload of pH meter calibration, and does not need to additionally increase the equipment pipeline, and the engineering cost is low. The protective sleeve pipe 2 is made of enamel material and has the same material as the enamel reaction kettle 1. The pipe diameter of the protective sleeve pipe 2 is 80 mm, and the protective sleeve pipe 2 is fixed in the reaction kettle through a flange, so that the plastic hand rod connected with the pH meter is protected from the adverse effect of stirring of the reaction kettle.

[0040] The insertion pipe 7 is made of a plastic hollow pipe, the plastic hollow pipe is suitable for working in an acidic environment, and the setting reliability is high. The insertion pipe 7 can be made of PTFE, FEP, PFA, PVC or the like, and in actual design, suitable plastic materials can be selected according to the temperature and pressure conditions of the reaction process. The length of each section of the plastic hand rod is 0.5 m, and in actual design, the length of each section of the plastic hand rod can be adjusted to adapt to the length of the enamel sleeve pipe.

[0041] After the pH meter is connected with the connecting sleeve pipe, the connecting sleeve pipe is inserted into the enamel sleeve pipe, and the connecting sleeve pipe is also fixed by a flange. The front end of the pH meter is provided with a pH probe 12, and the rear end is provided with a connecting portion. The connecting portion is used for being connected with a cable, the cable is arranged in the inner cavity of the connecting sleeve pipe, and the end portion of the cable is pulled out from the top end outlet of the connecting sleeve pipe.

[0042] In some possible embodiments, please refer to Figure 1 、 Figure 2 and Figure 4 , the adjacent two sections of the insertion pipe 7 are connected through threads or clamping.

[0043] Taking the threaded connection between the insertion pipes 7 as an example, the length of each pipe section of the insertion pipe 7 is 0.5 m, the pipe diameter is 50 mm, and the two ends are respectively made into internal threads and external threads according to the GB / T 7306 sealing pipe thread standard, so as to be connected with other sections, and the thread adopts a 55° standard triangular thread.

[0044] The adjacent insertion pipes 7 are connected in a threaded manner, when the pH meter needs to be calibrated, each pipe section can be unscrewed and removed one by one in the process of pulling out the connecting sleeve pipe, which can be smoothly operated even in a small space, and the operation difficulty and workload of pH meter calibration are greatly reduced.

[0045] The interface between the two adjacent insertion tubes 7 has a locking gasket to ensure that the connection will not loosen and leak over a long period of use, further protecting the cable in the inner cavity of the connecting sleeve.

[0046] In some possible embodiments, referring to Figure 2 and Figure 4 , the connecting sleeve further comprises an electrode protection sleeve 10 and a sealing ring 11, the electrode protection sleeve 10 is threadedly connected with the lowermost insertion tube 7, the electrode protection sleeve 10 has an axial through hole, and the working end of the pH probe 12 extends into the inner cavity of the through hole; the sealing ring 11 is located in the inner cavity of the through hole, and the sealing ring 11 is attached to the outer side wall of the pH probe 12 and the side wall of the through hole; the tail end of the pH probe 12 is located in the inner cavity of the insertion tube 7, and the working end of the pH probe 12 extends below the sealing ring 11.

[0047] The lower end of the lowermost insertion tube 7 of the connecting sleeve fixes the pH probe 12 by means of the electrode protection sleeve 10. The electrode protection sleeve 10 is threadedly connected with the lowermost insertion tube 7, and the electrode protection sleeve 10 also has an axial through hole, the pH probe 12 extends into the through hole, and a connecting part of the pH meter is fixed at the upper end of the electrode protection sleeve 10 and extends into the insertion tube 7. The cable connected by the connecting part is always located in the inner cavity of the insertion tube 7.

[0048] The inner diameter of the through hole of the electrode protection sleeve 10 is smaller than the inner diameter of the inner cavity of the insertion tube 7.

[0049] The sealing ring 11 is located in the through hole of the electrode protection sleeve 10, and the axial direction of the sealing ring 11 is consistent with the axial direction of the through hole. The sealing ring 11 is sleeved on the pH probe 12, only allowing the test end of the pH probe 12 to be located below the sealing ring 11, and other parts are closed in the motor protection sleeve by the sealing ring 11. The sealing ring 11 is used to close the through hole and the inner cavity of the insertion tube 7, to avoid the entry of acid liquid into the insertion tube 7, and to avoid the corrosion of the cable by the acid liquid.

[0050] In some possible embodiments, referring to Figure 5 , the tube clamp comprises a clamp body and a fastener, the clamp body has two clamping pieces 13 and a hinge joint 16, the two clamping pieces 13 are both arc-shaped piece structures and the two arc-shaped openings are oppositely arranged; the first ends of the two clamping pieces 13 are respectively connected to the two ends of the hinge joint 16, and the second ends of the two clamping pieces 13 have outwardly protruding extension parts 14; the fastener connects the two extension parts 14 to limit the rotation of the clamping pieces 13.

[0051] The pipe clamp is located above the protective sleeve 2, and is used to clamp the inserted pipe 7 of the taking-out part. When the inserted pipe 7 of the upper section needs to be disassembled, the inserted pipe 7 of the lower section is first clamped and fixed by the pipe clamp, and then the inserted pipe 7 of the upper section is rotated and taken off. Then the inserted pipe 7 of the lower section is further lifted upwards. Correspondingly, when the inserted pipe 7 needs to be put down, the inserted pipe 7 of the lower section is first inserted into the protective sleeve 2, and the upper end thereof is retained above the protective sleeve 2. After the inserted pipe 7 is clamped and fixed by the pipe clamp, another inserted pipe 7 is taken to connect the inserted pipe 7.

[0052] The pipe clamp comprises a clamp body and a fastener. The clamp body comprises two arc-shaped clamping pieces 13 which are hinged by a hinge joint 16 and are opened and closed by hinged rotation. The opening end is provided with an extension 14. The fastener can be a bolt which transversely penetrates the two extensions 14 and is fixed by a nut, so as to clamp the inserted pipe 7 by the clamp body. The clamping piece 13 and the hinge joint 16 can be made of plastic material.

[0053] The pipe clamp further comprises an elastic ring 15 and a buffer pad 17. The elastic ring 15 is sleeved on the outer side of the clamp body, and has a connecting gap. The two ends of the elastic ring 15 are connected to the two extensions 14 respectively. The buffer pad 17 is located on the inner side of the clamping piece 13, and is used to abut against the outer side wall of the inserted pipe 7.

[0054] The elastic ring 15 can be made of metal material, and is annularly arranged on the outer side of the clamp body to form an annular structure with an opening. The two free ends of the elastic ring 15 are connected to the two extensions 14. When the clamp body is opened, the elastic ring 15 is squeezed. When the external force is removed, the elastic ring 15 drives the clamp body to close.

[0055] The buffer pad 17 is arranged on the inner side wall of the clamping piece 13, and is made of rubber material. When clamping, the buffer pad 17 abuts against the outer side wall of the inserted pipe 7.

[0056] In some possible embodiments, referring to Figures 1 to 3 The protective sleeve 2 comprises a first pipe section 3 and a second pipe section 5. The first pipe section 3 is inserted into the enamel reaction kettle 1, and the top end of the first pipe section 3 is provided with a first flange 4 which is used to connect the enamel reaction kettle 1. The second pipe section 5 is connected to the upper end of the first pipe section 3, and the upper end of the second pipe section 5 is provided with a second flange 6 which is used to bear a connecting flange 8.

[0057] The first pipe section 3 and the second pipe section 5 are both hollow pipe sections. The lower end of the first pipe section 3 extends into the enamel, and the upper end of the first pipe section 3 has a first flange 4 for connecting at the top opening of the enamel reactor 1. The second pipe section 5 is connected at the upper part of the first flange 4, the lower end of the second pipe section 5 is welded with the upper end face of the first flange 4, and the upper end of the second pipe section 5 has a second flange 6 for connecting the connecting flange 8 on the uppermost insertion pipe 7 in the connecting sleeve to position the connecting sleeve.

[0058] The first pipe section 3 and the second pipe section 5 can be two hollow pipes of the same diameter connected by welding or bolting, or two sections of the same hollow pipe.

[0059] When the protective sleeve is one pipe, that is, the first pipe section 3 and the second pipe section 5 are two sections of the same hollow pipe; at this time, the first flange 4 is arranged outside the protective sleeve and is spaced apart from the second flange 6 at the top end of the protective sleeve. During installation, the first flange 4 is connected at the top opening of the enamel reactor 1, and the second flange 6 is located above the first flange 4 and is used to connect the connecting flange 8. The space between the first flange 4 and the second flange 6 can meet the installation needs of the flange.

[0060] In some possible embodiments, please refer to Figure 2 and Figure 6 The anti-falling assembly further includes a damping sleeve 9 located on the inner side wall of the second pipe section 5, and the inner diameter of the damping sleeve 9 is matched with the outer diameter of the insertion pipe 7; the damping sleeve 9 has a barb structure 19 inside, the barb structure 19 is attached to the outer side wall of the insertion pipe 7, and the barb structure 19 extends upwardly and obliquely.

[0061] The damping sleeve 9 is made of rubber material, and the damping sleeve 9 is located in the second pipe section 5 of the protective sleeve 2. The inner side of the damping sleeve 9 is uniformly distributed with the barb structure 19, which extends upwardly and obliquely, and is used to limit the downward movement of the insertion pipe 7 inside. The angle of the barb structure 19 is 10°-30°, the length is 8mm-16mm, the root diameter is 4mm-8mm, and the distribution density is not less than 4 roots / cm 2 If the active anti-falling device is not turned on and the hand lever is accidentally dropped during operation, the damping sleeve 9 can greatly slow down the falling speed of the hand lever, so that the operator can timely catch the dropped hand lever.

[0062] The damping sleeve 9 as a passive anti-falling device and the pipe clamp as an active anti-falling device cooperate to prevent the connecting sleeve from falling off when pulling out the pH meter outwardly.

[0063] The upper end of the damping sleeve 9 has a flange structure along the radial direction thereof, the flange structure extends outwardly, and the flange structure is lapped on the upper end face of the second flange 6. The flange structure forms a rubber flange 18.

[0064] Example 1

[0065] In the production of potassium chloride solution, the pH value of potassium fluoride solution is adjusted to 6.5 by injecting 35% hydrofluoric acid for the next reaction. 3 The reaction is carried out in the enamel reactor 1, first, 2.5m 3 of potassium fluoride solution is added to the enamel reactor 1, and then 1m 3 of hydrofluoric acid in the high tank is injected into the enamel reactor 1, and the enamel reactor 1 is provided with an online pH detection device, and when the pH value of the solution is adjusted to 6.5, the interlocking closing hydrofluoric acid feeding pipe switch valve is closed. There is a process pipe rack passing through 1.5m above the enamel reactor 1.

[0066] According to the size of the reactor equipment and the liquid level of the material, the pipe diameter of the protective sleeve 2 is designed to be 80mm, and the length is 2m; the connecting sleeve of the pH meter adopts a PTFE plastic pipe structure, which is divided into four sections of insertion pipes 7, and the length of each insertion pipe 7 is 0.5m, and the two ends of each insertion pipe 7 are respectively provided with a 55° standard triangular internal thread and a 55° standard triangular external thread.

[0067] The protective sleeve 2 is inserted into the top reserved flange opening of the reactor, and is fixed by the first flange 4; the high-temperature-resistant damping sleeve 9 is inserted into the top end of the protective sleeve 2, and the damping sleeve 9 is fixed at the second pipe section 5 as a passive anti-falling device; the pH meter is installed on the electrode protection sleeve 10, and then the electrode protection sleeve 10 and the four sections of insertion pipes 7 are sequentially installed and tightened, and the pH meter cable is led out from the top of the sequentially connected insertion pipes 7; the assembled connecting sleeve is inserted into the protective sleeve 2, and is fixed by means of the connecting flange 8 and the second flange 6; a pipe clamp is installed above the damping sleeve 9 as an active anti-falling device. When calibrating the pH meter, first, the connecting flange 8 at the top of the connecting sleeve of the pH meter is removed, then the four insertion pipes 7 are pulled out one by one and removed, and finally the pH meter is taken out. When the insertion pipe 7 is unscrewed, the lower remaining insertion pipe 7 needs to be fixed by the pipe clamp to prevent the pH meter from falling, and if the operator forgets this operation, the lower insertion pipe 7 will fall at a slow speed under the action of the damping sleeve 9, which can provide sufficient reaction time for the operator. The height of the limited space above the enamel reactor 1 is 1.5m, and the length of the insertion pipe 7 is 0.5m, so there is enough operating height, the difficulty of pH meter calibration work is greatly reduced, and the safety and reliability are effectively guaranteed.

[0068] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A segmented, removable pH meter sleeve structure for an enamel-lined reactor, characterized in that, include: A protective sleeve (2) is inserted downward into the enamel-lined reactor (1) and connected to the enamel-lined reactor (1). The lower end of the protective sleeve (2) is opened to communicate with the inner cavity of the enamel-lined reactor (1). The connecting sleeve includes multiple insertion tubes (7), which are connected in sequence and inserted into the protective sleeve (2). Adjacent insertion tubes (7) are detachably connected. The uppermost insertion tube (7) has a connecting flange (8) at its upper end, and a pH probe (12) is installed at the lower end of the lowermost insertion tube (7). The pH probe (12) is located in the inner cavity of the protective sleeve (2). The anti-detachment component includes a tube clamp located above the protective sleeve (2) and used to clamp the insertion tube (7). The outer diameter of the tube clamp is larger than the inner diameter of the protective sleeve (2).

2. The segmented pull-out enamel-lined reactor pH meter sleeve structure as described in claim 1, characterized in that, The two adjacent insertion tubes (7) are connected by thread or snap-fit.

3. The segmented pull-out enamel-lined reactor pH meter sleeve structure as described in claim 2, characterized in that, The interfaces of the two adjacent insertion tubes (7) have locking gaskets.

4. The segmented pull-out enamel-lined reactor pH meter sleeve structure as described in claim 1, characterized in that, The connecting sleeve also includes: Electrode protective sleeve (10), the electrode protective sleeve (10) is threadedly engaged with the insertion tube (7) at the lowest end, the electrode protective sleeve (10) has an axial through hole, and the working end of the pH probe (12) extends into the inner cavity of the through hole; A sealing ring (11) is located in the inner cavity of the through hole, and the sealing ring (11) fits the outer wall of the pH probe (12) and the side wall of the through hole; The tail end of the pH probe (12) is located in the inner cavity of the insertion tube (7), and the working end of the pH probe (12) extends to the bottom of the sealing ring (11).

5. The segmented pull-out enamel-lined reactor pH meter sleeve structure as described in claim 1, characterized in that, The pipe clamp includes: The clamp has two clamping pieces (13) and a hinge joint (16). The two clamping pieces (13) are arc-shaped sheet structures with two arc-shaped openings facing each other. The first ends of the two clamping pieces (13) are respectively connected to the two ends of the hinge joint (16), and the second ends of the two clamping pieces (13) have outwardly protruding extensions (14). Fasteners that connect the two extensions (14) for limiting the rotation of the clamp (13).

6. The segmented pull-out enamel-lined reactor pH meter sleeve structure as described in claim 5, characterized in that, The pipe clamp also includes: An elastic ring (15) is sleeved on the outside of the clamp body. The elastic ring (15) has a connecting notch. The two ends of the elastic ring (15) are respectively connected to the two extensions (14). A buffer pad (17) is located inside the clip (13) and is used to fit against the outer wall of the insertion tube (7).

7. The segmented pull-out enamel-lined reactor pH meter sleeve structure as described in claim 1, characterized in that, The protective sleeve (2) includes: The first pipe section (3) extends into the enamel-lined reactor (1), and the top end of the first pipe section (3) has a first flange (4) for connecting the enamel-lined reactor (1). The second pipe section (5) is connected to the upper end of the first pipe section (3). The upper end of the second pipe section (5) has a second flange (6) for supporting the connecting flange (8).

8. The segmented pull-out enamel-lined reactor pH meter sleeve structure as described in claim 7, characterized in that, The anti-detachment component also includes: A damping sleeve (9) is located on the inner wall of the second pipe section (5). The inner diameter of the damping sleeve (9) is adapted to the outer diameter of the insertion tube (7). The damping sleeve (9) has a barb structure (19) inside. The barb structure (19) fits against the outer wall of the insertion tube (7) and extends upward at an angle.

9. The segmented pull-out enamel-lined reactor pH meter sleeve structure as described in claim 8, characterized in that, The angle between the extension direction of the barb structure (19) and the side wall of the damping sleeve (9) is 10°-30°.

Images