Support for tubular reactor of LDPE / EVA device

Abstract

The utility model discloses a support for a tubular reactor of an LDPE / EVA device, which comprises at least one disc spring group, at least one channel steel group, a height adjuster and a fastener, a steel structure of the tubular reactor is connected with the channel steel group through the fastener, the channel steel group comprises a channel steel I and a channel steel II, the channel steel I and the channel steel II are respectively arranged on two sides of the tubular reactor, a disc spring group is connected in the channel steel I, and a height adjuster is connected in the channel steel II; the height adjuster comprises an adjuster frame, a top plate and a fastener I, the adjuster frame is connected with the top plate through the fastener I, the adjuster frame is connected to a steel structure of the tubular reactor, the top plate is used for bearing the weight of the tubular reactor, and the fastener I is used for adjusting the height of the top plate, so that the top plate is in contact with the tubular reactor; therefore, the elevation of the tubular reactor is adjusted. The bracket can reduce the adjustment time when the reactor is mounted, and can improve the adjustment precision of the elevation of the reactor; and the vibration of the tubular reactor is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a special vibration-damping bracket, in particular to a bracket used for a tubular reactor of an LDPE / EVA device. Background Art

[0002] The tubular reactor is an important equipment in the LDPE / EVA device. Its function is to polymerize the medium compressed by the two stages of the secondary compressor at a given temperature and pressure according to the requirements of the synthesis process, so as to produce the required products. The tubular reactor is divided into an inner and outer two-layer structure. The inner layer is a pipe-shaped tubular reactor body, which mainly functions to achieve polymerization reaction. The outer layer is a jacketed tube. Different heat exchange media are introduced into the outer jacketed tube according to the requirements of the synthesis process to control the reaction temperature of the tubular reactor. According to different synthesis processes, this heat exchange medium can be water or steam at different temperatures. The length of the tubular reactor is usually between 40-60m depending on the production capacity, and the reactor is laid on a steel structure.

[0003] The following problems exist in the installation and use of tubular reactors:

[0004] 1. As the tubular reactor is very long, the corresponding steel structure is also very long, and the steel structure inevitably has elevation errors during the manufacturing process. Currently, 1mm thick gap adjustment sheets are mostly used for adjustment, which is not only time-consuming and labor-intensive, but also has large adjustment deviations;

[0005] 2. Due to the working characteristics of the LDPE / EVA secondary compressor reciprocating compressor, the reactor inevitably vibrates, and the existing tubular reactor bracket does not take the vibration problem into consideration. Utility Model Content

[0006] The technical problem to be solved by the utility model is to provide a bracket for a tubular reactor of an LDPE / EVA device, which meets the thermal expansion requirements of the tubular reactor during operation and also has the characteristics of vibration prevention, easy installation and low friction stress.

[0007] In order to solve the above technical problems, the technical solution adopted by the utility model is: the bracket for the tubular reactor of the LDPE / EVA device includes at least one disc spring group, at least one channel steel group, a height adjuster and fasteners. The steel structure of the tubular reactor is connected to the channel steel group through fasteners. The channel steel group includes channel steel 1 and channel steel 2. The channel steel 1 and channel steel 2 are respectively arranged on both sides of the tubular reactor. The disc spring group is connected to the inner part of the channel steel 1, and the height adjuster is connected to the inner part of the channel steel 2.

[0008] By adopting the above technical scheme, fasteners are used to connect the steel structure of the tubular reactor with the bracket and the preload of the disc spring group is adjusted, wherein the elevation of the tubular reactor can be adjusted by installing a height adjuster in the second channel steel, and vertical support is provided to the tubular reactor; the disc spring group is installed in the first channel steel, and a preload is first generated by compression of the disc spring group to offset the vibration force of the tubular reactor, and then the preload of the disc spring group is transmitted to the tubular reactor through the first channel steel, and the vertical displacement of the tubular reactor is limited; the bracket can meet the thermal expansion requirements of the tubular reactor during operation, and at the same time has the characteristics of vibration prevention, easy installation, and low friction stress.

[0009] Preferably, the height adjuster includes an adjuster frame, a top plate and a fastener 1, the adjuster frame is connected to the top plate via the fastener 1, the adjuster frame is connected to the steel structure of the tubular reactor, the top plate is used to bear the weight of the tubular reactor, and the fastener 1 is used to adjust the height of the top plate so that the top plate contacts the tubular reactor, thereby adjusting the elevation of the tubular reactor.

[0010] Preferably, the disc spring group includes flat washer 1, disc spring, disc spring inner sleeve and flat washer 2, the disc spring is sleeved on the outside of the disc spring inner sleeve, the flat washer 1, disc spring and flat washer 2 are sequentially sleeved on the outside of the disc spring inner sleeve, and the disc spring inner sleeve is connected to the fastener.

[0011] Preferably, the fasteners include a stud, a second fastener and a third fastener, the studs pass through the first channel steel and the second channel steel, the third fastener is used to connect the disc spring group to the first channel steel, and the third fastener is used to connect the second channel steel and the steel structure of the tubular reactor.

[0012] Preferably, the fastener 2 includes a hexagonal nut 1 and a lock nut, the disc spring assembly is sleeved on one end of the stud, and the hexagonal nut 1 and the lock nut are sequentially sleeved on the stud and on one end of the flat washer 2 for fastening connection.

[0013] Preferably, the fastener three includes hexagonal nut two, hexagonal nut three, flat washer three and flat washer four. The hexagonal nut two and flat washer three are sleeved on the stud and sleeved on the side of the channel steel two close to the steel structure of the tubular reactor. The hexagonal nut three and flat washer four are sleeved on the stud and sleeved on the side of the channel steel two away from the steel structure of the tubular reactor.

[0014] Preferably, the fastener 1 includes a hexagonal bolt and a corresponding hexagonal nut, a screw hole is provided on the adjustment frame, the hexagonal bolt passes through the hexagonal nut and is screwed into the screw hole in turn, and the hexagonal bolt is locked by the hexagonal nut.

[0015] Preferably, a shallow pit is provided on the top plate for axial positioning.

[0016] Preferably, the number of the shallow pits is 2, the depth of the shallow pits is 1 mm, and the diameter is 12 mm.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the bracket for the tubular reactor of the LDPE / EVA device can meet the thermal expansion requirements of the tubular reactor during operation, and at the same time has the characteristics of vibration prevention, easy installation, and low friction stress. The bracket for the tubular reactor of the LDPE / EVA device can reduce the adjustment time during reactor installation, improve the adjustment accuracy of the reactor, and reduce the vibration of the tubular reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of a support for a tubular reactor of an LDPE / EVA device according to the utility model;

[0019] Figure 2 The utility model is a support for a tubular reactor of an LDPE / EVA device. Figure 1 The left view structure diagram of

[0020] Figure 3 It is a top view of the first channel steel or the second channel steel in the bracket of the tubular reactor of the LDPE / EVA device of the utility model;

[0021] Figure 4 It is a utility model for the support of the tubular reactor of the LDPE / EVA device. Figure 3 Left view of

[0022] Figure 5 This is a structural diagram of a height adjuster for a support of a tubular reactor of an LDPE / EVA device according to the utility model;

[0023] Figure 6 yes Figure 5 Left view of

[0024] Figure 7 yes Figure 5 A partial cross-sectional view of

[0025] Figure 8 It is a structural diagram of an adjuster frame in a height adjuster of a support of a tubular reactor of an LDPE / EVA device according to the utility model;

[0026] Fig. 9 It is a top view of an adjuster frame in a height adjuster of a support for a tubular reactor of an LDPE / EVA device according to the utility model;

[0027] Fig.10It is a top view of an adjuster frame in a height adjuster of a support for a tubular reactor of an LDPE / EVA device according to the utility model;

[0028] Fig.11 This is a structural diagram of the support for the tubular reactor of the LDPE / EVA device of the utility model being connected to the tubular reactor of the LDPE / EVA device;

[0029] Fig.12 yes Fig.11 Left view of

[0030] Among them: 1- disc spring group; 101- flat gasket one; 102- disc spring; 103- disc spring inner sleeve; 104- flat gasket two; 2- channel steel group; 201- channel steel one; 202- channel steel two; 3- height adjuster; 301- adjuster frame; 302- top plate; 3021- shallow pit; 303 fastener one; 3031- hexagonal bolt; 3032- hexagonal nut; 4- fastener; 401- stud; 402- fastener two; 4021- hexagonal nut one; 4022- anti-loosening nut; 403- fastener three; 4031- hexagonal nut two; 4032- hexagonal nut three; 4033- flat gasket three; 4034- flat gasket four; 5- steel structure of tubular reactor; 501- crossbeam; 6- steel structure supporting column. DETAILED DESCRIPTION

[0031] The attached drawings illustrate an embodiment of the present invention by way of non-limiting examples, and some other features and advantages of the present invention will be more clearly shown in the detailed description that follows.

[0032] Example 1: Figures 1 to 10 As shown, the bracket for the tubular reactor of the LDPE / EVA device includes at least one disc spring group 1, at least one channel steel group 2, a height adjuster 3 and a fastener 4. The steel structure 5 of the tubular reactor is connected to the channel steel group 2 through the fastener 4. The channel steel group 2 includes a channel steel 1 201 and a channel steel 2 202. The channel steel 1 201 and the channel steel 2 202 are respectively arranged on both sides of the tubular reactor. The disc spring group 1 is connected to the channel steel 1 201, and the height adjuster 3 is connected to the channel steel 2 202. In this embodiment, one channel steel group 2 is included, and correspondingly four disc spring groups 1 and two height adjusters 3 are included. Figure 5-10As shown, the height adjuster 3 includes an adjuster frame 301, a top plate 302 and a fastener 1 303, the adjuster frame 301 is connected to the top plate 302 through the fastener 1 303, the adjuster frame 301 is connected to the steel structure of the tubular reactor, the top plate 302 is used to bear the weight of the tubular reactor, the fastener 1 303 adjusts the height of the top plate 302 so that the top plate 302 contacts the tubular reactor, thereby adjusting the elevation of the tubular reactor; the disc spring group 1 includes a flat gasket 101, a disc spring 102, a disc spring inner sleeve 103 and a flat gasket 2 104, the disc spring 102 is sleeved on the The outer side of the disc spring inner sleeve 103, the flat washer 101, the disc spring 102 and the flat washer 2 104 are sequentially sleeved on the outer side of the disc spring inner sleeve 103, and the disc spring inner sleeve 103 is connected to the fastener 4; the fastener 4 includes a stud 401, a fastener 1 402 and a fastener 2 403, the stud 401 passes through the channel steel 1 201 and the channel steel 2 202, the fastener 2 402 is used to connect the disc spring group with the channel steel 1 201, and the fastener 3 403 is used to connect the channel steel 202 and the steel structure 5 of the tubular reactor; the fastener 1 402 includes a hexagonal nut 1 4021 and a waterproof The disc spring group 1 is sleeved on one end of the stud 401, and the hexagonal nut 1 4021 and the anti-loosening nut 4022 are sequentially sleeved on the stud 402 and sleeved on one end of the flat washer 104 for fastening connection; the fastener 2 403 includes a hexagonal nut 2 4031, a hexagonal nut 3 4032, a flat washer 3 4033 and a flat washer 4 4034, the hexagonal nut 2 4031 and the flat washer 3 4033 are sleeved on the stud 401 and sleeved on the side of the channel steel 202 close to the steel structure 5 of the tubular reactor, the hexagonal nut 3 4032 and the flat washer 4 4034 are sleeved on the stud 401 and sleeved on the side of the channel steel 202 close to the steel structure 5 of the tubular reactor, the hexagonal nut 3 4032 and the flat washer 4 4034 are sleeved on the stud 401 and sleeved on the side of the channel steel 202 close to the steel structure 5 of the tubular reactor, the hexagonal nut 3 4 is sleeved on the stud 401 and sleeved on the side of the channel steel 202 away from the steel structure 5 of the tubular reactor; the fastener 1 303 includes a hexagonal bolt 3031 and a corresponding hexagonal nut 3032, the adjustment frame 301 is provided with a screw hole 3011, the hexagonal bolt 3031 passes through the hexagonal nut 3032 and is screwed into the screw hole 3011 in turn, and the hexagonal bolt 3031 is locked by the hexagonal nut 3032; the top plate 302 is provided with a shallow pit 3021 for axial positioning; the number of the shallow pits 3021 is 2, the depth of the shallow pit 3021 is 1 mm, and the diameter is 12 mm.The dimensions of the flat washer 101 are 50×φ21×4, the dimensions of the flat washer 104 are φ50×φ22×4, the dimensions of the disc spring 102 are φ45×φ22.4×2.5, the dimensions of the disc spring inner sleeve 103 are φ22×φ20.5×18, the models of the flat washer 4033 and the flat washer 4034 are both M20, the model of the hexagonal nut 3032 is M12, and the dimensions of the top plate 302 are 270×80×16.

[0033] like Figure 11-12 As shown, the bracket for the tubular reactor of the LDPE / EVA device in this embodiment is connected to the crossbeam 501 of the steel structure 5 of the tubular reactor; and the crossbeam 501 is connected to the steel structure support column 6.

[0034] The bracket for the tubular reactor of the LDPE / EVA device in this embodiment needs to be processed with the following attention: the radius of the chamfer is 3mm; the upper and lower pressing blocks are made of laminated fiber phenolic resin composite material, the density of the phenolic resin composite material is 1350-1400 kg / m3, the compressive strength is less than 176.5MPa, and the Martin heat resistance temperature is less than 125 degrees; the impact resistance is 200 kJ / m2. All hexagonal studs are carried out according to the requirements of GB / T901-1988, but the material selection, manufacturing and inspection process of hexagonal studs and hexagonal nuts are processed according to the relevant technical requirements and process conditions of high-strength studs, and the processing accuracy is not less than grade 6, the strength of hexagonal studs is grade 8.8, and the strength of hexagonal nuts is grade 8; the form and size of the welding joints are in accordance with the provisions of GB985 / T-2012 except for those specified, all welds are continuous and dense, without false welding and leaking welding; the surface of carbon steel components is zinc-dipped; the disc spring material is in accordance with the provisions of GB / T3279.

[0035] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above implementation modes, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A support for a tubular reactor of an LDPE / EVA device, characterized in that: It includes at least one disc spring group, at least one channel steel group, a height adjuster and fasteners. The steel structure of the tubular reactor is connected to the channel steel group through the fasteners. The channel steel group includes channel steel 1 and channel steel 2. The channel steel 1 and channel steel 2 are respectively arranged on both sides of the tubular reactor. The disc spring group is connected inside the channel steel 1, and the height adjuster is connected inside the channel steel 2.

2. The support for a tubular reactor of a LDPE / EVA device according to claim 1, characterized in that: The height adjuster includes an adjuster frame, a top plate and a fastener 1, wherein the adjuster frame is connected to the top plate via the fastener 1, the adjuster frame is connected to the steel structure of the tubular reactor, the top plate is used to bear the weight of the tubular reactor, and the fastener 1 is used to adjust the height of the top plate so that the top plate contacts the tubular reactor, thereby adjusting the elevation of the tubular reactor.

3. The support for a tubular reactor of a LDPE / EVA device according to claim 1, characterized in that: The disc spring group includes a flat washer 1, a disc spring, a disc spring inner sleeve and a flat washer 2. The disc spring is sleeved on the outside of the disc spring inner sleeve. The flat washer 1, the disc spring and the flat washer 2 are sequentially sleeved on the outside of the disc spring inner sleeve. The disc spring inner sleeve is connected to the fastener.

4. The support for a tubular reactor of a LDPE / EVA device according to claim 3, characterized in that: The fasteners include a stud, a second fastener and a third fastener. The stud runs through the first channel steel and the second channel steel. The third fastener is used to connect the disc spring assembly to the first channel steel. The third fastener is used to connect the second channel steel and the steel structure of the tubular reactor.

5. The support for a tubular reactor of a LDPE / EVA device according to claim 4, characterized in that: The fastener 2 includes a hexagonal nut 1 and a lock nut, and the disc spring assembly is sleeved on one end of the stud, and the hexagonal nut 1 and the lock nut are sequentially sleeved on the stud and on one end of the flat washer 2 for fastening connection.

6. The support for a tubular reactor of a LDPE / EVA device according to claim 4, characterized in that: The fastener three includes hexagonal nut two, hexagonal nut three, flat washer three and flat washer four. The hexagonal nut two and flat washer three are sleeved on the stud and sleeved on the side of the channel steel two close to the steel structure of the tubular reactor. The hexagonal nut three and flat washer four are sleeved on the stud and sleeved on the side of the channel steel two away from the steel structure of the tubular reactor.

7. The support for a tubular reactor of a LDPE / EVA device according to claim 2, characterized in that: The fastener 1 includes a hexagonal bolt and a corresponding hexagonal nut. The adjuster frame is provided with a screw hole. The hexagonal bolt passes through the hexagonal nut and is screwed into the screw hole in turn, and the hexagonal bolt is locked by the hexagonal nut.

8. The support for a tubular reactor of a LDPE / EVA device according to claim 7, characterized in that: The top plate is provided with a shallow pit for axial positioning.

9. The support for a tubular reactor of a LDPE / EVA device according to claim 8, characterized in that: The number of the shallow pits is 2, the depth of the shallow pits is 1 mm, and the diameter is 12 mm.

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