Transportation tool for compressor

Abstract

The utility model provides a transportation tool for a compressor, the transportation tool comprises a fixing plate and a fixing frame, the inner side of the fixing plate and the inner side of the fixing frame define a containing space, the containing space is used for containing a rotating part of the compressor, and the inner side of the fixing plate is used for abutting against the end of the rotating part. One end of the fixing frame is fixedly connected with the fixing plate, and the other end of the fixing frame is used for being connected with a static part of the compressor. When the containing space contains a rotating component of the compressor, the inner side of the fixing plate is fixed to the rotating component in an abutting mode, and when the containing space contains the rotating component of the compressor, the fixing frame is fixed to the outer side of the fixing frame in a connecting mode. The compressor fixing frame has the advantages that the fixing plate is matched with the fixing frame, so that a rotating part and a static part of the compressor can be fixed, and integral transportation is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of compressor equipment transportation, in particular to a transportation tool for a compressor, and is particularly suitable for a single-stage cantilever centrifugal compressor with a dry gas seal. Background Art

[0002] In recent years, my country's polyolefin production capacity, output, and consumption demand have grown rapidly, making it the world's largest polyolefin producer and consumer. Recycle gas compressors are key equipment in the polyolefin production process, providing the power source for the polymerization unit's reaction gas circulation. Driven by the compressor, the recycle gas is circulated into the reactor, where polymerization occurs under the action of a catalyst, removing a significant amount of reaction heat.

[0003] Because circulating gas compressors have the characteristics of low pressure rise and large flow, single-stage cantilever centrifugal compressors are usually selected (for example, a single-stage cantilever centrifugal compressor with a dry gas seal, such as the Chinese utility model design with publication number CN216691505U). The design, manufacture, and installation of the unit are difficult. In the past, circulating gas compressors for polyolefin plants were all imported from abroad. In addition, the center of mass of the rotor of the cantilever centrifugal compressor is not located in the middle of the bearing housing, which easily causes axial movement and radial vibration during transportation. Therefore, in order to prevent damage to the dry gas seal caused by axial movement during transportation, the manufacturer usually adopts a method of transporting the dry gas seal body and the compressor body separately after the unit mechanical test run is qualified. After the unit arrives at the site, the unit needs to be disassembled and the dry gas seal installed. The inner and outer volutes of the compressor are castings, the front and rear end plates are forgings, and the other various components are also large in size and heavy in weight. Each disassembly and assembly is very troublesome, resulting in a large workload for on-site installation of the unit and a long debugging time.

[0004] Therefore, it is necessary to study a transportation tool for a compressor to solve the above problems or alleviate the impact of the above problems. Utility Model Content

[0005] The utility model provides a transport tool for a compressor, which can fix the rotating parts of the compressor and its stationary parts through the cooperation of a fixing plate and a fixing frame, thereby facilitating overall transportation, thereby effectively solving the above-mentioned problems or alleviating the effects of the above-mentioned problems.

[0006] The compressor transport vehicle of the present invention may include a fixing plate and a fixing frame, wherein the inner side of the fixing plate and the inner side of the fixing frame enclose an accommodation space, the accommodation space is used to accommodate the rotating parts of the compressor, the inner side of the fixing plate is used to abut against the end of the rotating part, one end of the fixing frame is fixedly connected to the fixing plate, and the other end thereof is used to connect to the stationary part of the compressor;

[0007] The fixing plate is configured such that when the accommodating space accommodates the rotating component of the compressor, the inner side of the fixing plate is abutted and fixed to the rotating component, and the fixing frame is configured such that when the accommodating space accommodates the rotating component of the compressor, the outer side of the fixing frame is connected and fixed to the stationary component.

[0008] In one embodiment, the fixing plate is a circular structure, and the area of the fixing plate surface is larger than the area of the end surface of the rotating component.

[0009] In one embodiment, a buffer pad is provided on one side of the fixing plate connected to the fixing bracket, and the buffer pad is used to contact the end surface of the rotating component.

[0010] In one embodiment, the buffer pad includes a first gasket and a second gasket arranged in sequence, and the first gasket is sandwiched between the second gasket and the fixing plate.

[0011] In one embodiment, the first gasket is an asbestos-free gasket, and the second gasket is a polytetrafluoroethylene gasket.

[0012] In one embodiment, the buffer pad is a circular structure having the same center as the fixing plate, and a radial dimension of the buffer pad is smaller than a radial dimension of the fixing plate.

[0013] In one embodiment, the buffer pad is provided with a plurality of first connection holes along the circumference, and the fixing plate is provided with second connection holes corresponding one to one with the first connection holes. The buffer pad and the fixing plate are fixedly connected by matching first fasteners passing through the first connection holes and the second connection holes.

[0014] In one embodiment, the fixing frame includes a plurality of support frames distributed along the circumference of the fixing plate, and the plurality of support frames are symmetrically distributed.

[0015] In one embodiment, the support frame is an integrated L-shaped structure, including a support member perpendicular to the fixed plate and a connecting member parallel to the fixed plate, the support member is fixedly connected to the fixed plate, and the connecting member is used to be fixedly connected to the stationary component.

[0016] In one embodiment, a third connecting hole is provided on the connecting member, and the connecting member can be fixedly connected to the stationary component by a matching second fastener passing through the third connecting hole.

[0017] The utility model provides a compressor transport vehicle, which has at least the following beneficial effects compared with the prior art:

[0018] The compressor transport vehicle of this utility model, through the cooperation of the fixing plate and the fixing frame, can fix the rotating components of the compressor with its stationary components, facilitating the transport of the entire unit. This can reduce the workload of on-site disassembly and assembly of the compressor, shorten the debugging time of the device, and help users quickly enter the product production stage, seize market resources, and increase product market share. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described in more detail below based on embodiments with reference to the accompanying drawings.

[0020] Figure 1 It is a structural schematic diagram of a transport vehicle according to an embodiment of the present utility model;

[0021] Figure 2 It is a bottom view of a transport vehicle according to an embodiment of the present utility model;

[0022] Figure 3 yes Figure 2 AA cross-sectional view;

[0023] Figure 4 It is a structural schematic diagram of a transportation tool installed on a compressor according to an embodiment of the utility model.

[0024] In the drawings, like parts are given like reference numerals, but the drawings are not necessarily drawn to scale.

[0025] Reference numerals:

[0026] 1-fixed plate, 11-second connecting hole, 2-fixed frame, 21-support frame, 22-support member, 23-connecting member, 24-third connecting hole, 3-buffer pad, 31-first gasket, 32-second gasket, 33-first connecting hole, 4-rotating part, 5-stationary part, 6-dry gas seal body. DETAILED DESCRIPTION

[0027] The present invention will be further described below with reference to the accompanying drawings.

[0028] like Figures 1 to 4 As shown, the transport vehicle of the present invention is used to be installed on a compressor in a transport state. The transport vehicle may include a fixing plate 1 and a fixing frame 2. The inner side of the fixing plate 1 and the inner side of the fixing frame 2 form an accommodating space, and the accommodating space is used to accommodate a rotating component 4 of the compressor. The fixing plate 1 is used to abut against the end of the rotating component 4. One end of the fixing frame 2 is fixedly connected to the fixing plate 1, and the other end thereof is used to connect to the stationary component 5 of the compressor.

[0029] When the fixed plate 1 is constructed to accommodate the rotating part 4 of the compressor, the inner side of the fixed plate 1 is abutted and fixed to the rotating part 4. When the fixed frame 2 is constructed to accommodate the rotating part 4 of the compressor, the outer side of the fixed frame 2 is connected and fixed to the stationary part 5.

[0030] Specifically, the compressor transport vehicle of the present invention abuts and secures the end of the compressor's rotating component 4 via a fixing plate 1, which is then connected and secured to the compressor's stationary component 5 via a fixing bracket 2. This allows the compressor's rotating component 4 to be relatively fixed to its stationary component 5, facilitating integrated transport. This reduces the workload of on-site compressor assembly and disassembly, shortens device commissioning time, and facilitates rapid entry into product production, seizing market resources and increasing product market share.

[0031] It should be noted that the inner side of the fixed plate 1 is the side of the fixed plate 1 that is fixedly connected to the fixing frame 2. The fixed plate 1 abuts against the end of the rotating component 4 of the compressor, which can not only achieve axial positioning to prevent axial movement of the rotating component 4, but also reduce radial vibration by relying on the friction between the two.

[0032] In one example, the fixed plate 1 is a circular structure, and the surface area of the fixed plate 1 is larger than the end surface area of the rotating component 4. This allows the entire end surface of the compressor rotating component 4 to effectively contact the fixed plate 1, improving the effectiveness of the abutment fixation.

[0033] In one example, a buffer pad 3 is provided on one side of the fixed plate 1 connected to the fixed frame 2. The buffer pad 3 is used to contact the end surface of the rotating component 4. The buffer pad 3 is made of a flexible material, which ensures soft contact between the fixed plate 1 and the end surface of the rotating component 4, preventing damage to the end surface of the rotating component 4 and providing a protective function. The buffer pad 3 also increases the friction coefficient, that is, the contact with the end surface of the rotating component 4 increases friction and reduces radial vibration.

[0034] In one example, Figure 1 and Figure 3 As shown, the buffer pad 3 includes a first gasket 31 and a second gasket 32 arranged in sequence, with the first gasket 31 sandwiched between the second gasket 32 and the fixing plate 1. That is, the first gasket 31 is applied to the surface of the fixing plate 1 on the side connected to the fixing frame 2, and the second gasket 32 is applied on the first gasket 31.

[0035] In one example, the first gasket 31 may be an asbestos-free gasket, and the second gasket 32 may be a polytetrafluoroethylene gasket.

[0036] In one example, the buffer pad 3 is a circular structure concentric with the fixed plate 1, and the radial dimension of the buffer pad 3 is smaller than the radial dimension of the fixed plate 1. It should be noted that the area of the buffer pad 3 can completely cover the end surface of the rotating component 4 to ensure that the fixed plate 1 and the end of the rotating component 4 effectively abut each other.

[0037] In one example, a return spring (not shown in the accompanying drawings) may be provided between the cushion pad 3 and the fixed plate 1. The return spring can adjust the distance between the cushion pad 3 and the fixed plate 1, allowing the transport vehicle to accommodate rotating components 4 of varying lengths, thereby improving the transport vehicle's usability. Rotating components 4 of varying lengths, when abutted against the cushion pad 3, compress the return spring to varying degrees. It should be noted that the elastic force generated by the compression of the return spring is sufficient to secure the rotating component 4 relative to the cushion pad 3 and the fixed plate 1.

[0038] In one example, Figure 2 and Figure 3 As shown, the buffer pad 3 is provided with multiple first connection holes 33 along the circumferential direction, and the fixing plate 1 is provided with second connection holes 11 corresponding one to one with the first connection holes 33. The buffer pad 3 and the fixing plate 1 are fixedly connected by matching first fasteners passing through the first connection holes 33 and the second connection holes 11.

[0039] Furthermore, the cushion pad 3 is provided with six symmetrically distributed first connection holes 33 along the circumference. The six first connection holes 33 are divided into three groups arranged radially along the cushion pad 3, with the two first connection holes 33 in each group symmetrically distributed about the center of the cushion pad 3. The first connection holes 33 and the second connection holes 11 can be threaded holes, and the first fastener can be a bolt, which is used to secure the cushion pad 3 to the fixing plate 1 through the stud and nut.

[0040] It should be noted that the buffer pad 3 can also be fixed on the fixing plate 1 by gluing, but the method of fixing it through the connection hole and the fastener is more convenient for replacing the buffer pad 3.

[0041] In one example, Figures 1 to 3 As shown, the fixing frame 2 includes a plurality of support frames 21 distributed along the circumference of the fixing plate 1 , and the plurality of support frames 21 are symmetrically distributed.

[0042] Furthermore, the fixing frame 2 includes four symmetrically distributed support frames 21 , and the four support frames 21 are divided into two groups arranged along the radial direction of the fixing plate 1 , and the two support frames 21 in each group are symmetrically distributed about the center of the fixing plate 1 .

[0043] It should be noted that the fixing frame 2 can also be set to a cylindrical structure, which can play the function of fixing the connection between the fixing plate 1 and the stationary part 5 of the compressor. However, designing it into multiple support frames 21 can save materials while making it easier to observe the abutment between the rotating part 4 and the fixing plate 1.

[0044] In one example, Figures 1 to 3 As shown, the support frame 21 is an integrated L-shaped structure, including a support member 22 perpendicular to the fixed plate 1 and a connecting member 23 parallel to the fixed plate 1. The support member 22 is fixedly connected to the fixed plate 1, and the connecting member 23 is used to be fixedly connected to the stationary component 5.

[0045] Furthermore, one end of the support member 22 away from the connecting member 23 is fixedly connected to the fixing plate 1 by welding.

[0046] Furthermore, the support member 22 is a telescopic structure. By adjusting its own length, the support member 22 can adjust the distance between the fixed plate 1 and the connecting member 23, allowing the transport vehicle to accommodate rotating components 4 of varying lengths, thereby improving the transport vehicle's usability. The support member 22 can be a telescopic rod, a telescopic shaft, or a telescopic bracket, capable of adjusting its own length and being locked at a fixed length during use.

[0047] In one example, the connecting member 23 is provided with a penetrating third connecting hole 24 , and the connecting member 23 can be fixedly connected to the stationary component 5 by a matching second fastener passing through the third connecting hole 24 .

[0048] Furthermore, the third connection hole 24 may be a threaded hole, and the second fastener may be a bolt, and the fixing bracket 2 and the stationary component 5 may be connected and fixed by the bolt.

[0049] In order to better understand the present invention, the following further describes the use of a transport vehicle for transporting a single-stage cantilever centrifugal compressor with a dry gas seal in conjunction with the accompanying drawings.

[0050] The existing polyolefin circulating gas compressor is generally a large single-stage cantilever centrifugal compressor, the inner and outer volutes of the compressor are castings, and the front and rear end plates are forgings. In addition, the various components of the compressor are large in size and heavy in weight, and it is very troublesome to disassemble and assemble each time. Now, the single-stage cantilever centrifugal compressor can be transported using the transportation tool of the utility model. Figure 4 A schematic diagram of the structure of a single-stage cantilever centrifugal compressor with a dry gas seal installed on a transport vehicle.

[0051] The transport cover is set at the end of the single-stage cantilever centrifugal compressor, the fixed plate 1 is in contact with the end of the rotating part 4 of the single-stage cantilever centrifugal compressor (the rotor or the half coupling on the rotor), and the fixed frame 2 is fixed on the stationary part 5 of the single-stage cantilever centrifugal compressor, so that the rotating part 4 of the single-stage cantilever centrifugal compressor is connected and fixed with the stationary part 5, and the rotating part 4 of the single-stage cantilever centrifugal compressor can be prevented from relative movement during equipment transportation. In this way, the transport can transport the dry gas seal body 6 together with the single-stage cantilever centrifugal compressor body during transportation, which can protect the dynamic and static rings of the dry gas seal body 6, and also make it possible for the single-stage cantilever centrifugal compressor to be safely started after installation on the user's site without disassembling the components of the single-stage cantilever centrifugal compressor to check the dry gas seal body 6, thereby greatly shortening the debugging time on the user's site.

[0052] Obviously, the transportation tool of the utility model has a simple structure and is easy to install. It can meet the requirements of transporting large single-stage cantilever centrifugal compressors with dry gas seals, reduce the user's on-site disassembly and assembly workload, shorten the debugging time of the device, and is conducive to users to quickly enter the product production stage, seize market resources, and increase product market share.

[0053] While the present invention has been described with reference to preferred embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, the various technical features described in the various embodiments may be combined in any manner, provided no structural conflicts exist. The present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A transport vehicle for a compressor, characterized in that: The transport vehicle includes a fixed plate and a fixed frame, wherein the inner side of the fixed plate and the inner side of the fixed frame enclose an accommodation space, the accommodation space is used to accommodate the rotating parts of the compressor, the inner side of the fixed plate is used to abut against the end of the rotating part, one end of the fixed frame is fixedly connected to the fixed plate, and the other end thereof is used to connect to the stationary part of the compressor; The fixing plate is configured such that when the accommodating space accommodates the rotating component of the compressor, the inner side of the fixing plate is abutted and fixed to the rotating component, and the fixing frame is configured such that when the accommodating space accommodates the rotating component of the compressor, the outer side of the fixing frame is connected and fixed to the stationary component.

2. The compressor transportation vehicle according to claim 1, characterized in that: The fixed plate is a circular structure, and the area of the fixed plate surface is larger than the area of the end surface of the rotating component.

3. The compressor transportation vehicle according to claim 2, characterized in that: A buffer pad is provided on one side of the fixing plate connected to the fixing bracket, and the buffer pad is used to contact the end surface of the rotating component.

4. The compressor transportation vehicle according to claim 3, characterized in that: The buffer pad includes a first gasket and a second gasket that are sequentially arranged, and the first gasket is sandwiched between the second gasket and the fixing plate.

5. The compressor transportation vehicle according to claim 4, characterized in that: The first gasket is an asbestos-free gasket, and the second gasket is a polytetrafluoroethylene gasket.

6. The compressor transportation vehicle according to claim 3, characterized in that: The buffer pad is a circular structure having the same center as the fixing plate, and the radial dimension of the buffer pad is smaller than the radial dimension of the fixing plate.

7. The compressor transportation vehicle according to claim 6, characterized in that: The buffer pad is provided with a plurality of first connection holes along the circumference, and the fixing plate is provided with second connection holes corresponding to the first connection holes one by one. The buffer pad and the fixing plate are fixedly connected by matching first fasteners passing through the first connection holes and the second connection holes.

8. The compressor transportation vehicle according to claim 1, characterized in that: The fixing frame includes a plurality of support frames distributed along the circumference of the fixing plate, and the plurality of support frames are symmetrically distributed.

9. The compressor transportation vehicle according to claim 8, characterized in that: The support frame is an integrated L-shaped structure, including a support member perpendicular to the fixed plate and a connecting member parallel to the fixed plate. The support member is fixedly connected to the fixed plate, and the connecting member is used to be fixedly connected to the stationary component.

10. The compressor transportation vehicle according to claim 9, characterized in that: The connecting member is provided with a third connecting hole extending therethrough, and the connecting member can be fixedly connected to the stationary component by a matching second fastener passing through the third connecting hole.

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