Disassembling and assembling tool for air seal assembly of expansion machine

Abstract

A clamping assembly is operated to be arranged on an air sealing sleeve in a sleeved mode, the clamping force of the clamping assembly on the air sealing sleeve is adjusted till the clamping assembly is clamped on the air sealing sleeve, then an ejection assembly is operated, one end of the ejection assembly is made to move towards an expansion machine shell, and the air sealing sleeve is clamped on the air sealing sleeve. Further, when the ejection assembly continuously moves in the mounting direction of the air sealing sleeve, the end of the ejection assembly abuts against the expansion machine shell, and along with continuous ejection of the ejection assembly, under the relative abutting action of the expansion machine shell, the clamping assembly and the air sealing sleeve are driven to serve as a whole to move in the dismounting direction of the air sealing sleeve; the whole process is stable and reliable, the expansion machine shell or the air seal assembly does not need to be damaged by an irregular tool, the clamping assembly is in surface contact with the air seal sleeve, the stability of the air seal sleeve in the disassembly and assembly process is further kept, the disassembly and inspection efficiency is improved, and stable proceeding of follow-up production is kept.

Description

Technical Field

[0001] The present application relates to the technical field of expander disassembly and assembly, and in particular to a disassembly and assembly tool for an expander gas seal assembly. Background Art

[0002] The information provided in this section is for the purpose of generally presenting the background of the present disclosure. To the extent described in this section, the work of the presently named inventors and aspects of the description that may not constitute prior art at the time of filing are neither explicitly nor implicitly admitted to be prior art to the present disclosure.

[0003] Deep-freeze oxygen production equipment is equipped with multiple high-pressure expanders, which provide cooling capacity for air separation and distillation, and are the core equipment of the air separation unit. According to the expander operation and maintenance manual, disassembly and maintenance are required every few years. The maintenance process includes checking the nozzle opening, the gaps between each seal, and the status of the bearing. Based on the actual operating status of the expander and the integration of historical operating data, regular offline disassembly and maintenance are required. The main gas seal assembly of the expander is embedded in the PTFE insulator and forms an air seal sleeve. The air seal sleeve is installed in the casing. During the disassembly of the expander, the air seal sleeve needs to be disassembled as a whole. Due to the lack of a sealing form of disassembly holes between the insulator and the shell, and the application of sealant, the air seal sleeve is difficult to disassemble. At the same time, because the insulator is made of hard PTFE and the shell is made of copper, it is very easy to cause damage in the case of forced or improper disassembly, affecting production operations. Utility Model Content

[0004] In view of the defects existing in the prior art, the present application provides a disassembly and assembly tool for an expander gas seal assembly to solve the problem of difficulty in disassembling the expander gas seal assembly in the prior art.

[0005] The above-mentioned purpose of this application is mainly achieved through the following technical solutions:

[0006] A disassembly and assembly tool for an expander gas seal assembly, the disassembly and assembly tool comprising:

[0007] A clamping assembly, wherein the clamping assembly is used to be detachably mounted on the gas seal sleeve, and the clamping force of the clamping assembly on the gas seal sleeve is adjustable;

[0008] The ejection assembly is movably provided on the clamping assembly, and the ejection assembly can reciprocate in the disassembly direction of the gas seal sleeve. When the ejection assembly continues to move along the installation direction of the gas seal sleeve, the ejection assembly can drive the clamping assembly and the gas seal sleeve to move along the disassembly direction of the gas seal sleeve under the supporting action.

[0009] In an optional embodiment, the clamping assembly includes at least two clamping parts, and the clamping parts are enclosed on the air sealing sleeve.

[0010] In an optional embodiment, the clamping assembly further includes an adjusting portion provided between adjacent clamping portions, wherein the adjusting portion is used to adjust an assembly position between adjacent clamping portions.

[0011] In an optional embodiment, the adjusting portion includes first positioning nuts fixedly disposed on the clamping portions, respectively, and a first bolt threadedly connected is passed through the first positioning nuts.

[0012] In an optional embodiment, two clamping parts are provided, and the two clamping parts can be enclosed to form a circular ring mounted on the air sealing sleeve, and the first bolt can be respectively connected to the first positioning nuts on the two clamping parts.

[0013] In an optional embodiment, the ejection assembly includes a plurality of ejection parts.

[0014] In an optional embodiment, each of the ejection members includes a second positioning nut fixed on the clamping assembly, and a second bolt threadedly connected to the second positioning nut.

[0015] In an optional embodiment, the length of the second bolt is greater than the thickness of the clamping assembly.

[0016] In an optional embodiment, a plurality of ejectors are arranged on the clamping assembly at intervals along the circumferential direction.

[0017] In an optional embodiment, a protective layer is provided in the clamping assembly, and the protective layer is used to cover the outside of the air seal sleeve.

[0018] Compared with the prior art, the advantages of this application are:

[0019] The disassembly and assembly tool in the present application is used for the disassembly and assembly of the expander gas seal assembly, and the disassembly and assembly tool includes a clamping assembly and an ejection assembly, the clamping assembly is used to be detachably mounted on the gas seal sleeve, and the clamping force of the clamping assembly on the gas seal sleeve is adjustable, the ejection assembly is movably arranged on the clamping assembly, and the ejection assembly can reciprocate in the disassembly direction of the gas seal sleeve, when the ejection assembly continues to move along the installation direction of the gas seal sleeve, the ejection assembly can drive the clamping assembly and the gas seal sleeve to move along the disassembly direction of the gas seal sleeve under the supporting action, when the disassembly and inspection operation is actually required, the clamping assembly is operated to be mounted on the gas seal sleeve, and the clamping force of the clamping assembly on the gas seal sleeve is adjusted , until the clamping assembly is clamped on the gas seal sleeve, and then the ejection assembly is operated and one end of the ejection assembly is moved toward the expander housing, so that when the ejection assembly continues to move along the installation direction of the gas seal sleeve, the end of the ejection assembly is abutted against the expander housing. As the ejection assembly continues to be ejected, under the relative abutment of the expander housing, the clamping assembly and the gas seal sleeve are driven as a whole to move along the disassembly direction of the gas seal sleeve until the disassembly operation of the gas seal sleeve is completed. The whole process is stable and reliable, and no irregular tools are required to damage the expander housing or the gas seal assembly. The clamping assembly is in surface contact with the gas seal sleeve, which further maintains the stability of the gas seal sleeve during the disassembly and assembly process, improves the disassembly and inspection efficiency, and maintains the stability of subsequent production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0021] Figure 1 A front view of the disassembly and assembly workpiece provided in an embodiment of the present application;

[0022] Figure 2 A side view of the disassembly and assembly workpiece provided in an embodiment of the present application;

[0023] Figure 3 A top view of the disassembly and assembly workpiece provided in an embodiment of the present application;

[0024] In the figure: 100, clamping assembly; 101, holding part; 102, adjusting part; 103, first positioning nut; 104, first bolt; 200, ejection assembly; 201, ejection part; 202, second positioning nut; 203, second bolt; 301, protective layer; 400, air seal sleeve. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that the description of these embodiments is intended to aid understanding of the present invention and does not constitute a limitation of the present invention. The specific structural and functional details disclosed herein are merely intended to describe exemplary embodiments of the present invention. However, the present invention may be embodied in many alternative forms, and should not be construed as being limited to the embodiments described herein.

[0026] Figure 1 This is a front view of the disassembly and assembly workpiece provided in the embodiment of the present application. Figure 2 This is a side view of the disassembly and assembly workpiece provided in the embodiment of the present application. Figure 3 This is a top view of the disassembly and assembly workpiece provided in an embodiment of the present application.

[0027] like Figure 1 、 Figure 2 as well as Figure 3 As shown, a disassembly and assembly tool for an expander gas seal assembly includes a clamping assembly 100 and an ejection assembly 200, wherein:

[0028] like Figure 1 、 Figure 2 as well as Figure 3 As shown, the clamping assembly 100 is used to be detachably mounted on the air seal sleeve 400, and the clamping force of the clamping assembly 100 on the air seal sleeve 400 is adjustable. It should be noted that, through operational adjustment, the clamping assembly 100 can be clamped on the air seal sleeve 400 with different clamping forces, so that the clamping assembly 100 can be more conveniently mounted on the air seal sleeve 400, and through corresponding adjustment operations, the clamping assembly 100 can increase the friction between itself and the air seal sleeve 400 by increasing the clamping force, so as to facilitate the synchronous displacement operation of the clamping assembly 100 and the air seal sleeve 400 during subsequent operations.

[0029] The ejection assembly 200 is movably mounted on the clamping assembly 100 and can reciprocate in the disassembly direction of the gas seal sleeve 400. When the ejection assembly 200 continues to move along the installation direction of the gas seal sleeve 400, the ejection assembly 200 can drive the clamping assembly 100 and the gas seal sleeve 400 to move along the disassembly direction of the gas seal sleeve 400 under the supporting action.

[0030] The ejection assembly 200 can reciprocate in a set direction on the clamping assembly 100. The ejection assembly 200 moves relative to the clamping assembly 100, and the fixed foundation of the gas seal sleeve 400 is relatively stable. When the clamping force of the clamping assembly 100 reaches the premise of synchronous displacement with the gas seal sleeve 400, the ejection assembly 200 is relatively displaced, and a section of the ejection assembly 200 is pushed to the installation foundation of the gas seal sleeve 400. When the ejection assembly 200 continues to displace in the installation direction of the gas seal sleeve 400, the clamping assembly 100 moves together with the gas seal sleeve 400 in the disassembly direction of the gas seal sleeve 400 until the gas seal sleeve 400 completes a stable disassembly operation.

[0031] In an optional embodiment, the work of the disassembly and assembly tool in the present application is originally as follows: the disassembly and assembly tool is used for the disassembly and assembly of the expander gas seal assembly, and the disassembly and assembly tool includes a clamping assembly 100 and an ejection assembly 200, the clamping assembly 100 is used to be detachably mounted on the gas seal sleeve 400, and the clamping force of the clamping assembly 100 on the gas seal sleeve 400 is adjustable, the ejection assembly 200 is movably arranged on the clamping assembly 100, and the ejection assembly 200 can reciprocate in the disassembly direction of the gas seal sleeve 400, when the ejection assembly 200 continues to move along the installation direction of the gas seal sleeve 400, the ejection assembly 200 can drive the clamping assembly 100 and the gas seal sleeve 400 to move along the disassembly direction of the gas seal sleeve 400 under the supporting action, when the disassembly and inspection operation is actually required, the clamping assembly 100 is operated to be mounted on the gas seal sleeve 400, and the ejection assembly 200 is adjusted to a desired state. The clamping force of the clamping assembly 100 on the gas seal sleeve 400 is increased until the clamping assembly 100 is clamped on the gas seal sleeve 400, and then the ejection assembly 200 is operated to move one end of the ejection assembly 200 toward the expander housing, so that when the ejection assembly 200 continues to move along the installation direction of the gas seal sleeve 400, the end of the ejection assembly 200 is abutted against the expander housing. As the ejection assembly 200 continues to be ejected, under the relative abutment of the expander housing, the clamping assembly 100 and the gas seal sleeve 400 are driven as a whole to move along the disassembly direction of the gas seal sleeve 400 until the disassembly operation of the gas seal sleeve 400 is completed. The whole process is stable and reliable, and no irregular tools are required to damage the expander housing or the gas seal assembly. The surface contact between the clamping assembly 100 and the gas seal sleeve 400 further maintains the stability of the gas seal sleeve 400 during the disassembly and assembly process, improves the disassembly and inspection efficiency, and maintains the stability of subsequent production.

[0032] like Figure 1 、 Figure 2 as well as Figure 3As shown, in an optional embodiment, the clamping assembly 100 includes at least two clamping portions 101, and the clamping portions 101 are enclosed on the air seal sleeve 400. Through the enclosure of the clamping portions 101, a stable clamping effect is formed on the air seal sleeve 400, and when the clamping portions 101 are separated, the clamping assembly 100 can be disassembled, thereby improving operational reliability.

[0033] like Figure 1 、 Figure 3 As shown, in an optional embodiment, the clamping assembly 100 further includes an adjusting portion 102 provided between adjacent clamping portions 101 , and the adjusting portion 102 is used to adjust the assembly position between adjacent clamping portions 101 .

[0034] After the clamping parts 101 are enclosed and sleeved, the adjusting part 102 is used to adjust the relative positions of adjacent clamping parts 101, thereby adjusting the force and friction of each clamping part 101 on the air seal sleeve 400 to facilitate disassembly.

[0035] like Figure 1 、 Figure 3 As shown, in an optional embodiment, the adjusting portion 102 includes first positioning nuts 103 respectively fixed on the holding portions 101 , and a first bolt 104 threadedly connected is penetrated through the first positioning nuts 103 .

[0036] The first positioning nut 103 is threadedly connected to the first bolt 104, and multiple first positioning nuts 103 are respectively arranged on multiple clamping parts 101. Adjacent first positioning nuts 103 are threadedly connected by the first bolt 104 to adjust the relative position between adjacent clamping parts 101, and then adjust the clamping force of the clamping parts 101 at different positions on the air seal sleeve 400.

[0037] In an optional embodiment, two clamping parts 101 are provided, and the two clamping parts 101 can be enclosed to form a ring mounted on the air sealing sleeve 400, and the first bolt 104 can be respectively connected to the first positioning nuts 103 on the two clamping parts 101.

[0038] The central angle corresponding to each clamping portion 101 can be less than 180°, so that the relative positions of the two clamping portions 101 can be accurately adjusted through the threaded connection between the first bolt 104 and the first positioning nut 103, thereby achieving precise adjustment of the clamping force.

[0039] like Figure 2 、 Figure 3As shown, in an optional embodiment, the ejection assembly 200 includes multiple ejection parts 201. The displacement of the multiple ejection parts 201 allows the clamping assembly 100 and the air seal sleeve 400 to be displaced more stably and uniformly as a whole, and the axial displacement of the air seal sleeve 400 is maintained, thereby improving the convenience of disassembly.

[0040] In an optional embodiment, each of the ejection members 201 includes a second positioning nut 202 fixed on the clamping assembly 100 and a second bolt 203 threadedly connected to the second positioning nut 202 .

[0041] When each ejection member 201 is performing an ejection operation, the end of the second bolt 203 is ejected by the relative movement of the second bolt 203 compared to the second positioning nut 202. The second positioning nut 202 is fixedly connected to the clamping assembly 100. The clamping assembly 100 also maintains a stable relative position with the gas seal sleeve 400 while stably clamping the gas seal sleeve 400, so that the second positioning nut 202 maintains a relative position relationship with the gas seal sleeve 400. When the second bolt 203 is displaced relative to the second positioning nut 202, the second positioning nut 202 moves in the guide direction of the second bolt 203 with the second bolt 203 as a reference, and drives the clamping assembly 100 and the gas seal sleeve 400 to displace as a whole, thereby realizing the disassembly operation of the gas seal sleeve 400.

[0042] In an optional embodiment, the length of the second bolt 203 is greater than the thickness of the clamping assembly 100, so that the second bolt 203 can stably achieve an end-protruding working state.

[0043] In an optional embodiment, a plurality of ejection members 201 are circumferentially spaced apart and arranged on the clamping assembly 100 to maintain a stable ejection state of the ejection members 201 and improve the controllability of the disassembly process of the gas seal sleeve 400 .

[0044] like Figure 3 As shown, in an optional embodiment, a protective layer 301 is provided in the clamping assembly 100, and the protective layer 301 is used to cover the outside of the air seal sleeve 400 to prevent the clamping assembly 100 from directly contacting the air seal sleeve 400, thereby increasing the friction between the clamping assembly 100 and the air seal sleeve 400, and at the same time keeping the air seal sleeve 400 from being damaged by the clamping assembly 100.

[0045] It should be understood that the terms first, second, etc. are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the exemplary embodiments of the present invention.

[0046] It should be understood that the term "and / or" in this article is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent three situations: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that two relationships may exist. For example, A / and B can represent two situations: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0047] It should be understood that in the description of the present invention, the terms "upper", "vertical", "inside", "outside", etc. indicate the orientation or position relationship, which is the orientation or position relationship in which the disclosed product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be understood as a limitation on the present invention.

[0048] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0049] The terms used herein are used only to describe specific embodiments and are not intended to limit the exemplary embodiments of the present invention. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms "include", "comprising", "including", and / or "comprising" when used herein specify the presence of the claimed features, integers, steps, operations, units, and / or components, and do not exclude the presence or addition of one or more other features, quantities, steps, operations, units, components, and / or their combinations.

[0050] In the following description, certain details are provided to facilitate a thorough understanding of the exemplary embodiments. However, one of ordinary skill in the art will appreciate that the exemplary embodiments may be practiced without these specific details. In other embodiments, well-known processes, structures, and techniques may not be shown in unnecessary detail in order to avoid obscuring the exemplary embodiments.

[0051] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

[0052] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute prior art known to ordinary technicians in the field.

Claims

1. A disassembly and assembly tool for an expander gas seal assembly, characterized in that: The disassembly and assembly tool comprises: A clamping assembly, wherein the clamping assembly is used to be detachably mounted on the gas seal sleeve, and the clamping force of the clamping assembly on the gas seal sleeve is adjustable; The ejection assembly is movably provided on the clamping assembly, and the ejection assembly can reciprocate in the disassembly direction of the gas seal sleeve. When the ejection assembly continues to move along the installation direction of the gas seal sleeve, the ejection assembly can drive the clamping assembly and the gas seal sleeve to move along the disassembly direction of the gas seal sleeve under the supporting action.

2. The disassembly and assembly tool for the expander gas seal assembly according to claim 1, characterized in that: The clamping assembly includes at least two clamping parts, and the clamping parts are enclosed on the gas sealing sleeve.

3. The disassembly and assembly tool for the expander gas seal assembly according to claim 2, characterized in that: The clamping assembly further includes an adjusting portion provided between adjacent clamping portions, and the adjusting portion is used to adjust the assembly position between adjacent clamping portions.

4. The disassembly and assembly tool for the expander gas seal assembly according to claim 3, characterized in that: The adjusting portion includes first positioning nuts fixedly arranged on the clamping portions, and a first bolt threadedly connected is passed through the first positioning nuts.

5. The disassembly and assembly tool for the expander gas seal assembly according to claim 4, characterized in that: There are two clamping parts, and the two clamping parts can be combined to form a circular ring sleeved on the gas sealing sleeve, and the first bolt can be connected to the first positioning nuts on the two clamping parts respectively.

6. The disassembly and assembly tool for the expander gas seal assembly according to claim 1, characterized in that: The ejection assembly includes a plurality of ejection parts.

7. The disassembly and assembly tool for the expander gas seal assembly according to claim 6, characterized in that: Each of the ejection members includes a second positioning nut fixed on the clamping assembly and a second bolt threadedly connected to the second positioning nut.

8. The disassembly and assembly tool for the expander gas seal assembly according to claim 7, characterized in that: The length of the second bolt is greater than the thickness of the clamping assembly.

9. The disassembly and assembly tool for the expander gas seal assembly according to claim 6, characterized in that: A plurality of ejectors are arranged on the clamping assembly at intervals along the circumferential direction.

10. The disassembly and assembly tool for the expander gas seal assembly according to claim 1, characterized in that: A protective layer is provided in the clamping assembly, and the protective layer is used to cover the outside of the air seal sleeve.

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