Labyrinth compressor mounting method

Abstract

The invention relates to the field of mechanical equipment installation, in particular to a labyrinth compressor installation method. The method comprises the following steps: hoisting and leveling a compressor, arranging a liftable leveling support column, grouting a foundation bolt, vertically limiting, arranging a cast-in-place base plate consisting of an outer mold and a mold core, grouting the peripheral side of the foundation bolt by using an outer mold sleeve, controlling the centering degree and height of the foundation bolt, paving mortar during grouting, and extruding from the periphery to the middle by using a grouting template, and after the base plate is solidified, loosening, disassembling and leveling the supporting column, and grouting. The installation of the labyrinth compressor can be effectively realized, mortar is pressurized to be fully compacted during joint filling and grouting, and the pressure is maintained, so that the shrinkage phenomenon of the mortar or concrete in the solidification process can be improved to a certain extent, the stability of equipment is further enhanced, and the service life of the equipment is prolonged. And stable connection and accurate position of each component in the mounting process are ensured.

Description

Technical Field

[0001] This application relates to the technical field of mechanical equipment installation, and in particular to a method for installing a labyrinth compressor. Background Technology

[0002] Propylene recovery compressors are key equipment in chemical production, used to compress and recover propylene gas. Their installation quality directly affects the equipment's operating efficiency and service life, especially in terms of levelness, alignment, and foundation stability. With the expansion of chemical production scale and the trend towards larger equipment, the requirements for compressor installation technology are constantly increasing. While traditional installation methods can meet basic requirements, they still have shortcomings in terms of precision control, construction efficiency, and long-term stability.

[0003] A labyrinth reciprocating compressor includes a motor, crankcase, and cylinders. The motor drives the crankshaft to rotate, and the crankshaft drives the cylinders in a reciprocating motion. For the installation of the crankcase, motor, and cylinders, a mounting foundation must be prepared in advance. The mounting foundation is usually a concrete structure, which provides relatively stable support. These devices require a high degree of levelness during installation to ensure stability and facilitate the alignment of the motor and crankcase.

[0004] To ensure levelness, existing technologies typically employ leveling and grouting methods. Specifically, the compressor installation usually employs the following methods: First, use ordinary shims and anchor bolts for initial fixing, and then adjust the levelness using a spirit level; second, fill the gap between the foundation and the equipment base with grouting material to enhance stability. For example, CN114909274B.

[0005] While the above method can complete the installation task, it is prone to problems with inaccurate leveling in actual operation. Specifically, during the drying and solidification process after grouting, shrinkage occurs (the volume shrinkage rate is about 1%), which leads to problems such as loosening of the foundation and misalignment of the coupling, requiring secondary adjustment.

[0006] In some improved solutions, high-strength non-shrink grouting materials are used to replace ordinary grouting materials. These high-strength non-shrink grouting materials contain micro-expansion agents (such as aluminates and sulfoaluminates), which generate slight expansion through chemical reactions during the hardening process, offsetting the shrinkage stress generated by cement hydration. However, the production, processing, quality testing, transportation, and storage costs of high-strength non-shrink grouting materials are all higher than those of ordinary grouting materials. Furthermore, the quality requirements for high-strength non-shrink grouting materials are more stringent in terms of on-site preparation and construction techniques, leading to a significant increase in overall construction costs. Summary of the Invention

[0007] This application provides a method for installing a labyrinth compressor, which can effectively overcome installation deviations caused by foundation settlement, thereby ensuring construction quality. The technical solution adopted is as follows: A method for installing a labyrinth compressor includes: The compressor is hoisted and leveled by installing liftable leveling supports between the equipment foundation and the compressor base plate, and then leveling the compressor base plate. Grouting is used to connect the anchor bolts to the equipment foundation; vertical positioning is applied to the compressor base plate to limit the compressor's upward movement. Casting a base plate: A cast-in-place base plate is placed between the compressor base plate and the equipment foundation, and the base plate is allowed to solidify and reach the design strength. Grouting involves injecting mortar between the equipment foundation and the compressor base plate; using a grouting template, pressure is applied to the mortar from all sides towards the center, causing the mortar to solidify and reach the design strength. Secure the compressor to the anchor bolts.

[0008] By adopting the above technical solutions, the problem of poor levelness caused by concrete solidification shrinkage in traditional compressor installation methods can be effectively solved, ensuring the stability of the compressor's subsequent operation. This also effectively improves the alignment of the compressor's motor shaft and crankcase crankshaft, ensuring installation accuracy. Vertical positioning of the compressor can be implemented to prevent slight floating caused by subsequent grouting pressure. After the pad plate solidifies, it effectively supports the compressor's base plate, improving stability. During grouting, pressurizing the mortar ensures it is fully compacted, and maintaining pressure can mitigate the shrinkage of mortar or concrete during solidification, further enhancing equipment stability.

[0009] Preferably, the pad is composed of an outer mold and a core. The outer mold is tubular and vertically arranged, with its upper end abutting against the compressor base plate and its lower end abutting against the top surface of the equipment foundation. The outer mold is provided with grouting holes. The core is cast in place.

[0010] By adopting the above technical solution, the mold core can be formed by the outer mold. The outer mold is set vertically and abuts against the compressor base plate and the top surface of the equipment foundation, which can effectively support the compressor base plate and improve stability. The grouting holes on the outer mold facilitate the injection of grout into its interior to form the mold core, ensuring the formation of the pad plate.

[0011] Preferably, the outer mold is fitted around the anchor bolts; before the compressor hoisting and leveling step, the outer mold is placed at the anchor bolt holes of the equipment foundation, and the anchor bolts are placed in the anchor bolt holes at the same time; then the compressor hoisting and leveling step is carried out. Simultaneously perform anchor bolt grouting and pouring of pads, injecting grout into the outer formwork through the grouting holes, so that the mortar fills the anchor bolt holes and the outer formwork in sequence; Maintain pressure inside the outer mold until the mortar solidifies.

[0012] By adopting the above technical solution, the outer mold is fitted around the anchor bolts and placed in advance, which can provide a positioning foundation for subsequent installation; the simultaneous grouting of the anchor bolts and the pouring of the pad plate through the grouting hole can improve construction efficiency and make the anchor bolts and pad plate formed in one go; maintaining the internal pressure of the outer mold can ensure the compactness of the mortar filling and ensure the connection stability between the anchor bolts and the equipment foundation, and between the pad plate and the compressor base plate.

[0013] Preferably, the inner diameter of the outer mold is larger than the diameter of the anchor bolt hole, and the bottom end of the outer mold is also connected to an insertion tube, which is inserted into the anchor bolt hole, and the peripheral wall of the insertion tube is in contact with the inner wall of the anchor bolt hole.

[0014] By adopting the above technical solution, the outer mold can be fitted around the anchor bolts, and the insertion tube can be inserted into the anchor bolt holes with its peripheral wall fitting against the inner wall of the anchor bolt holes. This achieves relative fixation between the outer mold and the equipment foundation, facilitating subsequent simultaneous grouting of the anchor bolts and pouring of the base plate. It can effectively control the position of the anchor bolts, ensure the stability of the anchor bolts during the grouting process, and thus ensure the stability and accuracy of the compressor installation.

[0015] Preferably, a threaded joint is connected to the center of the inner side of the outer mold, and the threaded joint is threadedly connected to the anchor bolt; when installing the anchor bolt, the centering and height of the anchor bolt are controlled by rotating the anchor bolt and the outer mold relative to each other, and the stability during the grouting process can be maintained.

[0016] By adopting the above technical solution, the centering and height of the anchor bolts can be controlled by relatively rotating the anchor bolts and the outer mold during installation. It can also maintain the stability of the anchor bolts during grouting. Combined with steps such as hoisting and leveling, anchor bolt grouting, pouring pads, and filling gaps with grout, it effectively solves the problem of poor leveling caused by concrete solidification shrinkage in traditional compressor installation methods, ensures the stability of the compressor's subsequent operation, improves the centering of the compressor's motor shaft and crankcase crankshaft, and ensures installation accuracy.

[0017] Preferably, during the grouting process, concrete is first laid on the top surface of the equipment foundation, and then the concrete is squeezed from the periphery to the center to achieve dense filling; and the filling is repeated multiple times until the concrete fills the gap between the equipment foundation and the compressor base plate.

[0018] By adopting the above technical solution, when filling the gaps with grout, concrete is first laid out and then squeezed from the periphery to the center and filled multiple times. This allows the concrete to be densely filled in the gap between the equipment foundation and the compressor base plate until the gap is completely filled, ensuring the stability of the compressor installation. This effectively solves the problem of poor levelness caused by concrete solidification shrinkage in traditional installation methods, improves the alignment of the compressor motor shaft and crankcase crankshaft, and ensures installation accuracy.

[0019] Preferably, the grouting template includes side templates, pressure plates, and pressure components; The height of the side templates and pressure plates are consistent with the gap between the equipment foundation and the compressor base plate; two side templates are provided and are arranged opposite each other, and are respectively located on the two opposite sides of the equipment foundation; two pressure plates are also arranged opposite each other, and are respectively located on the other two opposite sides of the equipment foundation, and the two pressure plates and the two side templates form a quadrilateral frame; The side formwork is fixedly installed, and the pressure plate is slidably connected to the side formwork; the pressure assembly is used to apply lateral pressure to the pressure plate so that the pressure plate can move relative to the concrete and pressurize it.

[0020] By adopting the above technical solution, in the grouting step of the labyrinth compressor installation, the concrete can be pressurized from all sides to the center, which can make the concrete densely fill the gap between the equipment foundation and the compressor base plate, improve the stability of the equipment installation, ensure the stability of the compressor's subsequent operation, and at the same time help improve the alignment of the compressor's motor shaft and crankcase crankshaft, ensuring installation accuracy.

[0021] Preferably, the grouting template further includes two pressure blocks, which are detachably connected to two pressure plates respectively; the pressure blocks are located between the two pressure plates and are used to squeeze the concrete inside the grouting template to make the concrete fully compacted.

[0022] By adopting the above technical solution, in the grouting step of the labyrinth compressor installation, a pressure block that is detachably connected to the pressure plate is set in the grouting template. This can squeeze the concrete inside the grouting template, making the concrete fully compacted. Combined with laying concrete first and then squeezing it from the periphery to the center and filling it multiple times, and using a grouting template composed of a quadrilateral frame of side templates and pressure plates with sliding pressure plates, and applying lateral pressure through pressure components, combined with steps such as compressor hoisting and leveling, anchor bolt grouting, pouring pad plate, grouting, and fixing the compressor to the anchor bolts, the problem of poor levelness caused by concrete solidification shrinkage in traditional compressor installation methods can be effectively solved. This ensures the stability of the compressor's subsequent operation, improves the alignment of the compressor's motor shaft and crankcase crankshaft, and ensures installation accuracy.

[0023] Preferably, a retainer is used to fix the side template. The retainer is a frame structure and is located on the periphery of the equipment foundation. The fixed template is fixedly connected to the retainer and is detachable.

[0024] By adopting the above technical solution, the side formwork can be stably fixed during the installation of the labyrinth compressor, avoiding the side formwork shaking from affecting the grouting construction; at the same time, the detachable connection method facilitates the installation and removal of the side formwork, improves construction efficiency, and ensures that the concrete can be effectively squeezed and compacted during grouting, thereby ensuring the stability and levelness of the compressor installation.

[0025] Preferably, after the pad has solidified, the leveling support is loosened and removed, the levelness of the compressor base plate is checked again, and then grouting is performed to fill the gaps.

[0026] By adopting the above technical solution, after loosening and removing the leveling support, the levelness of the compressor base plate can be checked again. This allows for the timely detection and adjustment of any levelness deviations that may occur during the solidification process of the pad, ensuring the levelness accuracy of the compressor installation. This provides a good foundation for the subsequent grouting and sealing process, further ensuring the stability and quality of the compressor installation.

[0027] In summary, the present invention has at least one of the following beneficial technical effects: 1. By setting up adjustable leveling supports to level the compressor base plate, vertically limiting the compressor base plate, setting up cast-in-place pads, and injecting mortar between the equipment foundation and the compressor base plate and applying pressure, the problem of poor levelness caused by concrete curing shrinkage in traditional compressor installation methods is solved, ensuring the stability of the compressor's subsequent operation. 2. The above installation method effectively improves the alignment of the compressor's motor shaft and crankcase crankshaft, ensuring installation accuracy, and does not rely on high-strength non-shrink grout, thus reducing the overall construction cost caused by the use of high-strength non-shrink grout. 3. The bottom end of the outer mold is connected to the inner wall of the anchor bolt hole, and the threaded joint in the center of the inner side of the outer mold is threaded to the anchor bolt, which can control the centering and height of the anchor bolt and maintain stability during the grouting process; 4. During grouting, the mortar is pressurized from the perimeter to the center using a grouting template. The concrete is laid first and then squeezed and filled multiple times. The grouting template is equipped with side templates, pressure plates, pressure components and pressure blocks to facilitate the pressurization and full compaction of the concrete, ensuring that the mortar is fully compacted and improving the stability of the connection between the equipment foundation and the compressor base plate. Attached Figure Description

[0028] Figure 1 This is a plan view showing the positional relationship of the compressor base plate, equipment foundation, anchor bolts, and leveling support column in Embodiment 1 of this application; Figure 2 yes Figure 1 The corresponding 3D image; Figure 3 This is a plan view showing the positional relationship of the compressor base plate, anchor bolts, and nuts in Embodiment 1 of this application; Figure 4 yes Figure 3 The corresponding 3D image; Figure 5 This is a schematic diagram showing the fit between the equipment foundation, anchor bolts, and pad in Embodiment 1 of this application; Figure 6 This is a schematic diagram showing the positional relationship between the grouting template, equipment foundation, and compressor base plate in Embodiment 1 of this application; Figure 7 This is a schematic diagram of the composition of the grouting template in Embodiment 1 of this application; Figure 8 This is a schematic diagram showing the fit between the equipment foundation, anchor bolts, and pad in Embodiment 2 of this application; Figure 9 This is a schematic diagram of the structure of the outer mold in Embodiment 2 of this application.

[0029] The following are labels in the attached diagram: 1. Compressor base plate; 2. Equipment foundation; 3. Leveling support column; 31. Base; 32. Lifting platform; 4. Anchor bolt; 41. Nut; 5. Bolt hole; 6. Pad plate; 61. Outer mold; 62. Insert pipe; 63. Threaded joint; 7. Grouting template; 71. Side template; 72. Pressure plate; 73. Pressure block; 74. Pressure assembly; 741. Threaded top rod; 8. Cage; 81. Support. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1 - Figure 9 The present invention will be described in further detail below. Example

[0031] This application discloses a labyrinth compressor installation method, including compressor hoisting and leveling, grouting of anchor bolts 4, pouring of pad plate 6, grouting of joints, and compressor fixing. It can effectively solve the problem of poor levelness caused by concrete solidification shrinkage in traditional compressor installation methods, ensure the stability of subsequent compressor operation, and effectively improve the alignment of the compressor's motor shaft and crankcase crankshaft, ensuring installation accuracy.

[0032] Since traditional reciprocating labyrinth compressors typically consist of a motor, crankcase, and cylinder, and these components are usually installed independently before being connected, the compressor base plate 1 mentioned below can refer to the motor mounting base plate, the crankcase mounting base plate, or the cylinder mounting base plate. That is, this method can be used for the installation of the motor, crankcase, or cylinder, and is particularly suitable for crankcase installation. This installation method specifically includes: S1. Compressor hoisting and leveling. (Refer to...) Figure 1 and Figure 2 The bottom surface of the compressor base plate 1 must be clean and free of grease. During hoisting, a liftable leveling support 3 is installed between the equipment foundation 2 and the compressor base plate 1. The flatness of the base plate is adjusted to ±0.05mm using a level, and then supported by the leveling support 3.

[0033] In this application, the leveling support 3 includes a base 31 and a lifting platform 32. The lifting platform 32 is threadedly connected to the base 31 via a screw. Rotating the lifting platform 32 causes the screw to rotate accordingly, thereby raising and lowering the lifting platform 32 to adjust the length of the leveling support 3. Multiple leveling supports 3 can be provided to achieve stable support for the compressor equipment.

[0034] S2. Grouting of Anchor Bolts 4. Since the compressor base plate 1 and the equipment foundation 2 must be fixed together by anchor bolts 4, anchor bolt holes 4 will be drilled at predetermined positions on the top surface of the equipment foundation 2 before the compressor is hoisted. Anchor bolts 4 will be placed in the anchor bolt holes 4, and mortar will be poured into the holes 4. The mortar will solidify and reach its designed strength, thus securing the anchor bolts 4.

[0035] Reference Figure 2 It should be noted that the verticality of the anchor bolts 4 must be ensured during grouting. The anchor bolts 4 should be inserted into the bolt through holes on the compressor base plate 1. Furthermore, to facilitate future reassembly and adjustment of the compressor, there should be uniform clearance around the anchor bolts 4 when they are placed in the bolt through holes on the base plate.

[0036] The grouting material consists of 1 part cement, 1 part gravel (4-6 mm in diameter) and 2 parts sand. It should be ensured that there are no air bubbles in the cement grout concrete.

[0037] Reference Figure 3 After the mortar has solidified and reached the design strength, use nut 41 to connect with anchor bolt 4. Nut 41 abuts against the upper side of the base plate and is tightened. No pre-tightening force is required for this tightening operation. Just make nut 41 abut against the base plate tightly and not easy to loosen. The purpose is to vertically limit the compressor and prevent the compressor from floating slightly due to the grouting pressure in the future, thus ensuring stability.

[0038] S3, pouring of the base plate 6, refer to... Figure 4 A cast-in-place pad 6 is installed between the compressor base plate 1 and the equipment foundation 2, and the pad 6 is allowed to solidify and reach the design strength.

[0039] Reference Figure 5 The cast-in-place base plate 6 consists of an outer mold 61 and a core. The outer mold 61 is cylindrical and made of plastic or metal, preferably stainless steel. The length of the outer mold 61 is determined by the gap between the compressor base plate 1 and the equipment foundation 2, and is fabricated on-site.

[0040] Grouting holes are made on the outer mold 61, and a joint is welded at the grouting hole. This joint is used to connect to a manual high-pressure grouting pump, which injects grout into the outer mold 61. A high pressure is maintained inside the outer mold 61, and the pipeline of the manual high-pressure grouting pump is disconnected from the joint, while the joint is sealed to ensure that the pressure inside the outer mold 61 is not lost. Specifically, a manual valve can be added to the joint, which is closed before the grouting pipeline is removed.

[0041] After the grout solidifies, the mold core can be formed inside the outer mold 61.

[0042] The grouting material is cement slurry, which consists of 1 part cement and 2.5 parts sand. Alternatively, an anti-expansion and anti-shrinkage grouting synthetic material can be used instead of this cement slurry.

[0043] In this embodiment, the pad 6 is placed next to the leveling support 3. After the pad 6 solidifies and reaches the design strength, the pad 6 can effectively support the compressor base plate 1 and improve stability.

[0044] After the base plate 6 is poured, the leveling support 3 can be loosened and removed. The levelness of the compressor base plate 1 should then be checked again with a level. Alternatively, the leveling support 3 can remain in the concrete and be embedded during subsequent grouting work for permanent support.

[0045] S4. Grouting: Pour concrete into the gap between the equipment foundation 2 and the compressor base plate 1; pressurize the concrete from all sides to the center through the grouting template 7 to make the concrete solidify and reach the design strength.

[0046] Reference Figure 6 Specifically, first, a layer of concrete is laid on the equipment foundation 2 below the compressor, then the concrete is gently pressed flat, and then squeezed from all sides to compress the concrete to the center. The grouting process uses grouting template 7.

[0047] Furthermore, refer to Figure 6 and Figure 7The grouting template 7 includes two side templates 71 and two pressure plates 72. The height of both the side templates 71 and the pressure plates 72 is the same as the gap between the equipment foundation 2 and the compressor base plate 1. The two side templates 71 are arranged opposite each other and are respectively located on the two opposite sides of the equipment foundation 2. The two pressure plates 72 are also arranged opposite each other and are respectively located on the other two opposite sides of the equipment foundation 2. The two pressure plates 72 and the two side templates 71 form a quadrilateral frame.

[0048] The side formwork 71 is fixedly installed, and the pressure plate 72 is slidably connected to the side formwork 71, allowing the two pressure plates 72 to move relative to or away from each other. The grouting formwork 7 also includes two pressure blocks 73, which are connected one-to-one with the two pressure plates 72, and the pressure blocks 73 can be removed from the pressure plates 72. The pressure blocks 73 are located between the two pressure plates 72 and are used to compress the concrete inside the grouting formwork 7, ensuring that the concrete is fully compacted.

[0049] In this embodiment, the pressure block 73 is also used to compress the concrete inside the pad 6. Specifically, in this embodiment, four sets of pads 6 are provided and are located at the four corners of the equipment foundation 2. The side template 71 and the pressure plate 72 are both located on the outside of the pad 6. Therefore, it is difficult to effectively compress the concrete inside the pad 6 using only the pressure plate 72. However, the pressure block 73 can extend into the inside of the pad 6 to compress the concrete, effectively ensuring the density of the concrete in the middle of the gap between the equipment foundation 2 and the compressor base plate 1, and preventing gaps from existing at the corners or other edges of the pad 6.

[0050] Reference Figure 7 Furthermore, in order to facilitate the fixing of the side template 71, this embodiment of the application further adds a retainer 8. The retainer 8 is a steel frame structure and is sleeved around the equipment foundation 2. Multiple bolts are screwed onto the retainer 8. These bolts are used to abut against the side wall of the equipment foundation 2. By tightening the bolts, the ends of the bolts are tightly abutted against the equipment foundation 2, thereby effectively improving the stability of the retainer 8 and preventing the retainer 8 from shaking.

[0051] A support 81 is provided on the retainer 8, extending to the upper side of the equipment foundation 2. The side template 71 is fixedly connected to the support 81, thereby achieving stable fixation of the side template 71. The side template 71 can be connected to the support 81 by bolts, so that it can be removed from the support 81.

[0052] The grouting template 7 is also equipped with a pressure assembly 74, which is composed of a threaded push rod 741. One end of the threaded push rod 741 directly abuts against the side of the pressure plate 72, and the threaded push rod 741 is threadedly connected to the retainer 8. By rotating the threaded push rod 741, the pressure plate 72 is pushed and pressurized.

[0053] After the first part of the concrete is compacted by applying a certain amount of force, the pressure should be increased to continue filling the concrete, and the filling should be repeated until the concrete fills the grouting formwork 7. Each time the concrete is filled, the pressure plate 72 and the side formwork 71 can be hit from the front with a hammer or other tools to effectively improve the compactness of the concrete.

[0054] When filling the concrete for the last time, the pressure block 73 needs to be removed and taken out. After the concrete is filled, the threaded top rod 741 continues to maintain the pressure of the pressure plate 72 on the concrete until the concrete solidifies and reaches the design strength, thus completing the grouting and filling operation.

[0055] If water seepage occurs when the concrete is under pressure during the filling process, it indicates that the concrete moisture content is too high, and the water content of the concrete should be reduced.

[0056] S5. Secure the compressor by connecting it to the anchor bolts 4. Example

[0057] This application discloses a method for installing a labyrinth compressor, which differs from Embodiment 1 in that the installation position and construction method of the pad 6 are different. Specifically: S1. Installation of anchor bolts 4 and outer mold 61. Anchor bolts 4 are placed in the holes pre-drilled in the equipment foundation 2. Then, the outer mold 61 is fitted onto the anchor bolts 4.

[0058] Reference Figure 8 and Figure 9 The outer mold 61 is a tubular part and is further configured to be telescopic. Specifically, it includes two sleeves, the ends of which are connected by threads. The outer mold 61 can be extended or retracted by turning the sleeves so that the length of the outer mold 61 can be adapted to the gap height between the equipment foundation 2 and the compressor base plate 1.

[0059] The inner diameter of the outer mold 61 is larger than the diameter of the anchor bolt 4 hole. The bottom end of the outer mold 61 is also connected to the insertion tube 62, which is inserted into the anchor bolt 4 hole. The peripheral wall of the insertion tube 62 fits against the inner wall of the anchor bolt 4 hole. The bottom end of the outer mold 61 abuts against the top surface of the equipment foundation 2. Thus, the outer mold 61 and the equipment foundation 2 can be relatively fixed.

[0060] Furthermore, a threaded connector 63 is connected to the center of the inner side of the outer mold 61, which can be threadedly connected to the anchor bolt 4. During the process of fitting the outer mold 61 onto the anchor bolt 4, the outer mold 61 and the anchor bolt 4 are rotated relative to each other. Through this connection method, on the one hand, the centering of the anchor bolt 4 in the hole of the anchor bolt 4 and the height of the anchor bolt 4 can be effectively controlled; on the other hand, the stability of the anchor bolt 4 can also be ensured during the subsequent grouting process.

[0061] S2. The compressor is hoisted and leveled by leveling the compressor base plate 1 through the leveling support column 3.

[0062] After the compressor is leveled, the length of the outer mold 61 is adjusted by rotating the sleeve of the outer mold 61 so that the upper end of the outer mold 61 is in close contact with the compressor base plate 1 and the lower end of the outer mold 61 is in close contact with the equipment foundation 2.

[0063] S3, grouting of anchor bolts 4 and pouring of pad 6 are carried out simultaneously. Mortar is directly poured into the outer mold 61 through the grouting hole.

[0064] S4. Grouting and filling the gaps, the specific steps are the same as step S4 in Example 1.

[0065] S5. The compressor is fixed, and the specific steps are the same as those in step S5 of Example 1.

[0066] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for installing a labyrinth compressor, characterized in that, include: The compressor is hoisted and leveled. A liftable leveling support column (3) is set between the equipment foundation (2) and the compressor base plate (1), and the compressor base plate (1) is leveled. Grouting is performed on the anchor bolts (4) to connect them to the equipment foundation (2); Vertically limit the compressor base plate (1) to restrict the upward movement of the compressor; Casting pad (6): A cast-in-place pad (6) is set between the compressor base plate (1) and the equipment foundation (2). Wait for the pad (6) to solidify and reach the design strength. Grouting is performed between the equipment foundation (2) and the compressor base plate (1); grout is applied from the perimeter to the center through the grouting template (7) to solidify the grout and achieve the designed strength. The compressor is fixedly connected to the anchor bolts (4).

2. The labyrinth compressor installation method according to claim 1, characterized in that, The pad (6) is composed of an outer mold (61) and a mold core. The outer mold (61) is tubular and vertically arranged. Its upper end abuts against the compressor base plate (1) and its lower end abuts against the top surface of the equipment foundation (2). The outer mold (61) is provided with grouting holes. The mold core is cast in place.

3. The labyrinth compressor installation method according to claim 2, characterized in that, The outer mold (61) is placed around the anchor bolt (4); before the compressor hoisting and leveling step, the outer mold (61) is placed at the anchor bolt (4) hole of the equipment foundation (2), and the anchor bolt (4) is placed in the anchor bolt (4) hole at the same time; then the compressor hoisting and leveling step is carried out. Simultaneously grout the anchor bolts (4) and pour the pad plate (6). Grout is injected into the outer mold (61) through the grouting hole, so that the mortar fills the anchor bolt (4) hole and the outer mold (61) in sequence. Maintain the pressure inside the outer mold (61) until the mortar solidifies.

4. The labyrinth compressor installation method according to claim 3, characterized in that, The inner diameter of the outer mold (61) is larger than the diameter of the anchor bolt (4) hole. The bottom end of the outer mold (61) is also connected to a tube (62). The tube (62) is inserted into the anchor bolt (4) hole, and the peripheral wall of the tube (62) is in contact with the inner wall of the anchor bolt (4) hole.

5. The labyrinth compressor installation method according to claim 4, characterized in that, The outer mold (61) is connected to a threaded joint (63) at the center of its inner side. The threaded joint (63) is threadedly connected to the anchor bolt (4). When installing the anchor bolt (4), the centering and height of the anchor bolt (4) are controlled by rotating the anchor bolt and the outer mold (61) relative to each other, and the stability during the grouting process is maintained.

6. The installation method of the labyrinth compressor according to claim 1, characterized in that, When filling the gaps with grout, first lay the concrete on the top surface of the equipment foundation (2), and then squeeze the concrete from the periphery to the center to achieve dense filling of the concrete; and fill it multiple times until the concrete fills the gap between the equipment foundation (2) and the compressor base plate (1).

7. The labyrinth compressor installation method according to claim 6, characterized in that, The grouting template (7) includes a side template (71), a pressure plate (72), and a pressure assembly (74); The height of the side templates (71) and the pressure plate (72) are consistent with the gap between the equipment foundation (2) and the compressor base plate (1); there are two side templates (71) arranged opposite each other, and they are respectively arranged on the two opposite sides of the equipment foundation (2); there are also two pressure plates (72) arranged opposite each other, and they are respectively arranged on the other two opposite sides of the equipment foundation (2). The two pressure plates (72) and the two side templates (71) form a quadrilateral frame; The side template (71) is fixedly installed, and the pressure plate (72) is slidably connected to the side template (71); the pressure assembly (74) is used to apply lateral pressure to the pressure plate (72) so that the pressure plate (72) can move relative to the concrete and pressurize it.

8. The labyrinth compressor installation method according to claim 7, characterized in that, The grouting template (7) also includes two pressure blocks (73), which are detachably connected to two pressure plates (72) respectively. The pressure blocks (73) are located between the two pressure plates (72) and are used to squeeze the concrete inside the grouting template (7) to make the concrete fully compacted.

9. The installation method of the labyrinth compressor according to claim 7, characterized in that, The side template (71) is fixed by a retainer (8), which is a frame structure and is located on the periphery of the equipment foundation (2). The fixed template is fixedly connected to the retainer (8) and is detachable.

10. The installation method of the labyrinth compressor according to claim 1, characterized in that, After the pad (6) solidifies, loosen and remove the leveling support (3), check the levelness of the compressor base plate (1) again, and then grout the joint.

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