An analyzer on-line detachable fixing device

Abstract

The utility model belongs to the field of instruments and meters, provide a kind of fixing device that analyzer can be online disassembled, comprising: first tube group, the wire end for fixing the electrode of analyzer;Second tube group, it is sleeved in first tube group, for the axial positioning of analyzer electrode;And third tube group, one end is sealed and detachably connected with second tube group, the other end is connected on existing equipment and is communicated with existing equipment inside by normally open valve;Wherein, the probe end of analyzer electrode is inserted into existing equipment after freely passing through second tube group, third tube group and valve;When analyzer electrode is taken out from existing equipment and exits valve, valve is closed.The utility model is provided with valve, can carry out online plug-in to analyzer electrode, can anytime offline analyzer without affecting the system operation of existing equipment, realizes periodic calibration.

Description

Technical Field

[0001] This utility model relates to the field of instrumentation technology, specifically to a fixing device for an analyzer that can be installed and removed online. Background Technology

[0002] In industrial production processes, it is usually necessary to install analyzers on pipelines or tanks to perform online monitoring of the pressurized liquid media inside, such as detecting the conductivity of circulating cooling water in heat exchanger pipelines to determine whether there is a leak in the heat exchanger material.

[0003] Currently, the electrodes of analyzers are fixed in place using flanges or threads. When the analyzer needs to be calibrated periodically (to verify or replace electrodes) and the electrodes are removed, this fixing method can cause pressurized liquid media inside the pipes or tanks to spray out as the electrodes are removed. If this liquid media is toxic or harmful, it will cause environmental pollution and even harm to human health. In other words, this fixing method means that the analyzer cannot be taken offline at any time and can only be calibrated offline (by stopping the machine) for periodic calibration. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a fixing device for analyzers that can be installed and removed online, thereby solving the problem that existing analyzer electrodes, which are fixed by flanges or threads, cannot be taken offline for periodic calibration at any time.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A mounting device for an analyzer that can be installed and removed online includes:

[0007] The first tube assembly is used to fix the lead wire ends of the analyzer electrodes;

[0008] The second tube assembly, fitted over the first tube assembly, is used for axial positioning of the analyzer electrodes; and

[0009] The third pipe assembly has one end sealed and detachably connected to the second pipe assembly, and the other end connected to the existing equipment and connected to the inside of the existing equipment through a normally open valve;

[0010] The probe end of the analyzer electrode freely passes through the second tube group, the third tube group, and the valve before being inserted into the existing equipment; when the analyzer electrode is removed from the existing equipment and exits the valve, the valve is closed.

[0011] In one embodiment disclosed in this application, the first tube assembly includes a guide tube and a first limiting sleeve;

[0012] The guide tube is sealed onto the rod of the analyzer electrode;

[0013] The first limiting sleeve is fitted onto the lead wire end of the analyzer electrode and threadedly connected to the guide tube to press the lead wire end of the analyzer electrode against one end of the guide tube;

[0014] The cable at the electrode lead end of the analyzer extends out of the first limiting sleeve and connects to the analyzer.

[0015] In one embodiment disclosed in this application, the second tube assembly includes a first tube body and a second limiting sleeve;

[0016] The first tube body is sealed and fitted outside the guide tube;

[0017] The second limiting sleeve is fitted outside the first limiting sleeve and threadedly connected to the first tube body so as to press the guide tube to one end of the first tube body by the first limiting sleeve to achieve axial positioning of the analyzer electrode;

[0018] The probe end of the analyzer electrode passes freely through the first tube.

[0019] In one embodiment disclosed in this application, the guide tube is sealed to the rod of the analyzer electrode by a pair of first sealing rings spaced apart on its inner sidewall;

[0020] The first tube body is sealed to the outer wall of the guide tube by a pair of second sealing rings that are spaced apart and embedded in its inner sidewall.

[0021] In one embodiment disclosed in this application, a retaining sleeve is threadedly connected to the lower end of the guide tube;

[0022] The outer diameter of the retaining sleeve is larger than the inner diameter of the first tube body at the location where the second sealing ring is installed.

[0023] In one embodiment disclosed in this application, the second pipe assembly further includes an elastic sealing sleeve;

[0024] The elastic sealing sleeve is fitted outside the guide tube and abuts against the step provided on the outer wall of the guide tube and one end of the first tube body.

[0025] In one embodiment disclosed in this application, the end of the first limiting sleeve away from the guide tube and the end of the second limiting sleeve away from the first tube body are both flat square head structures.

[0026] In one embodiment disclosed in this application, the third pipe assembly includes a second pipe body and a third pipe body. One end of the second pipe body is sealed to the first pipe body and the other end is threaded to one side of the valve. One end of the third pipe body is threaded to the other side of the valve and the other end is connected to existing equipment by welding.

[0027] The guide tube extends into the second tube body, and the probe end of the analyzer electrode passes through the second tube body, the valve, and the third tube body in sequence before being inserted into the existing equipment.

[0028] In one embodiment disclosed in this application, the first pipe body and the second pipe body each have a flange, and a sealing gasket is provided between them and they are connected by bolts.

[0029] In one embodiment disclosed in this application, the valve is a ball valve.

[0030] Compared with the prior art, the beneficial effects of this utility model are:

[0031] 1. The analyzer electrodes can be plugged in and unplugged online via a valve, allowing the analyzer to be taken offline at any time without affecting the operation of the existing system, thus enabling periodic calibration.

[0032] 2. The guide tube reduces the impact between the probe end and the inner wall of each tube group during the disassembly and assembly of the analyzer electrode, effectively protecting the analyzer electrode and extending its service life. In addition, the seal between the guide tube and the rod of the analyzer electrode can prevent the pressurized liquid medium in the existing equipment from leaking along the analyzer electrode.

[0033] 3. The double seal formed by the first and second sealing rings can greatly reduce leakage when the analyzer electrode is removed and before the valve is closed, effectively preventing the jetting of pressurized liquid media in the existing equipment and reducing safety hazards.

[0034] 4. This retaining sleeve can prevent the analyzer electrode from being accidentally ejected from the first tube body due to the thrust of the pressurized liquid medium inside the existing equipment during the removal process, thus improving safety. In addition, it can reduce the movement distance of the guide tube, that is, it is not necessary to completely remove the analyzer electrode from the first tube body, simplifying the disassembly operation. At the same time, it reduces the wear of the second sealing ring caused by the movement of the guide tube, effectively protecting the second sealing ring and extending its service life.

[0035] 5. By compressing the elastic sealing sleeve, the depth of the probe end of the analyzer electrode inserted into the existing equipment can be adjusted, and a third seal is formed to further prevent the pressurized liquid medium in the existing equipment from leaking along the guide tube. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the main cross-section of the present invention;

[0038] Figure 2 for Figure 1 A magnified schematic diagram of section A in the middle;

[0039] Figure 3 for Figure 1 A magnified schematic diagram of part B in the middle section. Detailed Implementation

[0040] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0041] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0042] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0043] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0044] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0045] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0046] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0047] See Figures 1-3 As shown, this utility model provides a mounting device for an analyzer that can be installed and removed online, comprising:

[0048] The first tube group 100 is used to fix the wire ends of the analyzer electrode 400;

[0049] The second tube assembly 200, fitted outside the first tube assembly 100, is used for axial positioning of the analyzer electrode 400; and

[0050] The third pipe assembly 300 has one end sealed and detachably connected to the second pipe assembly 200, and the other end connected to existing equipment (such as pipes or tanks). Figure 1 (Illustration only of the pipeline) It is connected to the internal structure of the existing equipment via a normally open valve 320;

[0051] The probe end of the analyzer electrode 400 freely passes through the second tube group 200, the third tube group 300 and the valve 320 before being inserted into the existing equipment; when the analyzer electrode 400 is removed from the existing equipment and exits the valve 320, the valve 320 is closed.

[0052] Specifically, the first tube assembly 100 includes a guide tube 110 and a first limiting sleeve 120. The guide tube 110 is sealed onto the rod of the analyzer electrode 400, and the first limiting sleeve 120 is fitted onto the lead wire end of the analyzer electrode 400 and threadedly connected to the guide tube 110 to press the lead wire end of the analyzer electrode 400 against one end of the guide tube 110. The cable at the lead wire end of the analyzer electrode 400 extends out from the first limiting sleeve 120 and connects to the analyzer (not shown in the figure). The guide tube 110 reduces the impact between the probe end of the analyzer electrode 400 and the inner wall of each tube assembly during disassembly and assembly, effectively protecting the analyzer electrode 400 and extending its service life. Furthermore, the seal between the guide tube 110 and the rod of the analyzer electrode 400 prevents leakage of pressurized liquid media from the analyzer electrode 400 within the existing equipment.

[0053] The second tube assembly 200 includes a first tube body 210 and a second limiting sleeve 220. The first tube body 210 is sealed and fitted over the guide tube 110. The second limiting sleeve 220 is fitted over the first limiting sleeve 120 and threadedly connected to the first tube body 210. The first limiting sleeve 120 presses the guide tube 110 against one end of the first tube body 210, thereby achieving axial positioning of the analyzer electrode 400. The probe end of the analyzer electrode 400 passes freely through the first tube body 210. By screwing the second limiting sleeve 220 onto the first tube body 210, the first limiting sleeve 120 and the guide tube 110 are pushed towards the first tube body 210, thereby pressing the guide tube 110 and achieving axial positioning of the analyzer electrode 400. In addition, the seal between the first tube body 210 and the guide tube 110 prevents the pressurized liquid medium in the existing equipment from leaking along the guide tube 110.

[0054] See Figure 2 As shown, the guide tube 110 is sealed to the rod of the analyzer electrode 400 by a pair of first sealing rings 111 spaced apart on its inner sidewall; the first tube 210 is sealed to the outer sidewall of the guide tube 110 by a pair of second sealing rings 211 spaced apart on its inner sidewall. This double seal formed by the first sealing rings 111 and the second sealing rings 211 greatly reduces leakage of the analyzer electrode 400 when it is removed and before the valve 320 is closed, effectively preventing the jetting of pressurized liquid media within the existing equipment and reducing safety hazards.

[0055] See Figure 3As shown, a retaining sleeve 130 is threadedly connected to the lower end of the guide tube 110. The outer diameter of the retaining sleeve 130 is larger than the inner diameter of the first tube body 210 at the location where the second sealing ring 211 is installed. This retaining sleeve 130 prevents the analyzer electrode 400 from being accidentally ejected from the first tube body 210 during removal due to the thrust of the pressurized liquid medium within the equipment, thus improving safety. Furthermore, it reduces the travel distance of the guide tube 110, eliminating the need to completely remove the analyzer electrode 400 from the first tube body 210, simplifying disassembly, and reducing wear on the second sealing ring 211 during movement, effectively protecting the second sealing ring 211 and extending its service life.

[0056] The second tube assembly 200 also includes an elastic sealing sleeve 230, which is fitted over the guide tube 110 and abuts against the step on the outer wall of the guide tube 110 and one end of the first tube body 210. By compressing the elastic sealing sleeve 230, the depth to which the probe end of the analyzer electrode 400 is inserted into the existing equipment can be adjusted, and a third seal is formed to further prevent the pressurized liquid medium in the existing equipment from leaking along the guide tube 110.

[0057] To facilitate disassembly and assembly, the end of the first limiting sleeve 120 furthest from the guide tube 110 and the end of the second limiting sleeve 220 furthest from the first tube body 210 are both designed with a flat, rectangular head structure (specifically, this flat, rectangular head structure is obtained by cutting a pair of notches radially on the outer circumferential wall of the corresponding ends). During disassembly and assembly, the first limiting sleeve 120 or the second limiting sleeve 220 can be rotated by using an adjustable wrench to hold the corresponding flat, rectangular head structure.

[0058] The third tube assembly 300 includes a second tube body 310 and a third tube body 330. One end of the second tube body 310 is sealed to the first tube body 210, and the other end is threaded to one side of the valve 320. One end of the third tube body 330 is threaded to the other side of the valve 320, and the other end is welded to the existing equipment. The guide tube 110 extends into the second tube body 310. The probe end of the analyzer electrode 400 passes through the second tube body 310, the valve 320, and the third tube body 330 in sequence before being inserted into the existing equipment. Specifically, the first tube body 210 and the second tube body 310 each have a flange, and a sealing gasket is provided between them and they are connected by bolts. That is, the second tube assembly 200 and the third tube assembly 300 are flanged together.

[0059] In this embodiment, valve 320 is preferably a ball valve.

[0060] Based on the above, the specific disassembly and assembly operations of this utility model are as follows:

[0061] During installation, first, the elastic sealing sleeve 230 is fitted onto the guide tube 110, then it is inserted into the first tube body 210, with the elastic sealing sleeve 230 abutting between the step on the outer wall of the guide tube 110 and one end of the first tube body 210. Next, the retaining sleeve 130 is screwed on. Then, the analyzer electrode 400 is passed through the guide tube 110 with its probe end as the head, and the wire end of the analyzer electrode 400 abuts against the end of the guide tube 110 away from the retaining sleeve 130. Finally, the first limiting sleeve 120 is screwed onto the guide tube 110 (allowing the cable of the analyzer electrode 400 wire end to pass through the first limiting sleeve 120). The assembly is then inserted into the third tube group 300 with the probe end of the analyzer electrode 400 as the head (the probe end of the analyzer electrode 400 passes through the second tube 310, the normally open valve 320, and the third tube 330 in sequence before being inserted into the existing equipment, and the sealing gasket is placed on the flange of the second tube 310 in advance). At this time, the flanges of the first tube 210 and the second tube 310 are connected together with bolts. Finally, the second limiting sleeve 220 is screwed onto the first tube 210 of the assembly so that the cable of the analyzer electrode 400 lead wire end passes through the second limiting sleeve 220 to connect with the analyzer.

[0062] During disassembly, first unscrew the second limiting sleeve 220, then hold the first limiting sleeve 120 and pull the analyzer electrode 400 outward a distance (due to the pushing force of the pressurized liquid medium inside the existing equipment, the pulling process will be very easy, and due to the double seal formed by the first sealing ring 111 and the second sealing ring 211, the pressurized liquid medium inside the existing equipment will not leak or spray out before the valve 320 is closed). When the probe end is out of the valve 320, close the valve 320 in time. At this time, unscrew the connecting bolts between the flange of the first tube body 210 and the flange of the second tube body 310. Finally, remove the entire assembly from the second tube body 310 to achieve the periodic calibration of the analyzer (verification or replacement of the analyzer electrode 400).

[0063] After the analyzer is periodically calibrated, first insert the assembly into the second tube 310 with the probe end of the analyzer electrode 400 as the head. Then, connect the flange of the first tube 210 to the flange of the second tube 310 with bolts. After that, open the valve 320, and then hold the first limiting sleeve 120 to push the analyzer electrode 400 so that its probe end passes through the valve 320 and the third tube 330 in sequence before being inserted into the existing equipment. Finally, screw the second limiting sleeve 220 onto the first tube 210.

[0064] In summary, this utility model, through the valve 320, allows for the online insertion and removal of the analyzer electrode 400, enabling the analyzer to be taken offline at any time without affecting the operation of the existing system, thus achieving periodic calibration.

[0065] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the technical solutions of this utility model. Any technical solution that can be implemented based on the above embodiments without creative effort should be considered to fall within the scope of protection of this utility model patent.

Claims

1. A mounting device for an analyzer that can be installed and removed online, characterized in that, include: The first tube assembly is used to fix the lead wire ends of the analyzer electrodes; The second tube assembly is fitted outside the first tube assembly and is used for axial positioning of the analyzer electrodes; and The third pipe assembly has one end sealed and detachably connected to the second pipe assembly, and the other end connected to the existing equipment and connected to the inside of the existing equipment through a normally open valve; The probe end of the analyzer electrode freely passes through the second tube group, the third tube group, and the valve before being inserted into the existing equipment; when the analyzer electrode is removed from the existing equipment and exits the valve, the valve is closed.

2. The online detachable fixing device for the analyzer according to claim 1, characterized in that: The first tube assembly includes a guide tube and a first limiting sleeve; The guide tube is sealed onto the rod of the analyzer electrode; The first limiting sleeve is fitted onto the lead wire end of the analyzer electrode and threadedly connected to the guide tube to press the lead wire end of the analyzer electrode against one end of the guide tube; The cable at the electrode lead end of the analyzer extends out of the first limiting sleeve and connects to the analyzer.

3. The online detachable fixing device for the analyzer according to claim 2, characterized in that: The second tube assembly includes a first tube body and a second limiting sleeve; The first tube body is sealed and fitted outside the guide tube; The second limiting sleeve is fitted outside the first limiting sleeve and threadedly connected to the first tube body so as to press the guide tube to one end of the first tube body by the first limiting sleeve to achieve axial positioning of the analyzer electrode; The probe end of the analyzer electrode passes freely through the first tube.

4. The online detachable fixing device for the analyzer according to claim 3, characterized in that: The guide tube is sealed to the rod of the analyzer electrode by a pair of first sealing rings that are spaced apart and embedded in its inner sidewall; The first tube body is sealed to the outer wall of the guide tube by a pair of second sealing rings that are spaced apart and embedded in its inner sidewall.

5. The online detachable fixing device for the analyzer according to claim 4, characterized in that: The lower end of the guide tube is threaded with a retaining sleeve; The outer diameter of the retaining sleeve is larger than the inner diameter of the first tube body at the location where the second sealing ring is installed.

6. The online detachable fixing device for the analyzer according to any one of claims 3 to 5, characterized in that: The second pipe assembly also includes an elastic sealing sleeve; The elastic sealing sleeve is fitted outside the guide tube and abuts against the step provided on the outer wall of the guide tube between the first tube body and one end of the tube.

7. The online detachable fixing device for the analyzer according to claim 6, characterized in that, The end of the first limiting sleeve away from the guide tube and the end of the second limiting sleeve away from the first tube body are both flat square head structures.

8. The online detachable mounting device for the analyzer according to claim 3 or 7, characterized in that: The third pipe assembly includes a second pipe body and a third pipe body. One end of the second pipe body is sealed to the first pipe body and the other end is threaded to one side of the valve. One end of the third pipe body is threaded to the other side of the valve and the other end is connected to the existing equipment by welding. The guide tube extends into the second tube body, and the probe end of the analyzer electrode passes through the second tube body, the valve, and the third tube body in sequence before being inserted into the existing equipment.

9. The on-line removable fixing device of an analyser according to claim 8, characterised in that, The first pipe body and the second pipe body each have a flange, and a sealing gasket is provided between them and they are connected by bolts.

10. The on-line removable fixing device of the analyzer according to claim 8, characterized in that, The valve is a ball valve.

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