Scraper system device of scraper condenser

Abstract

The utility model discloses a scraper system device of a scraper condenser, which relates to the technical field of condenser scrapers, and comprises a main shaft, a plurality of linear scrapers are arranged on the main shaft, a tail scraper is arranged at the tail end of the main shaft, a plurality of supporting pieces are arranged on the main shaft, and the supporting pieces are arranged on the main shaft. According to the device, the original cross-shaped pairwise perpendicular mode of the single-tool sets is changed into a structure that the single-tool sets are in a linear mode and the adjacent tool sets are perpendicular, and the inclined tool mode is changed into the straight tool mode; the first rear scraper, the second middle scraper and the third front scraper fill each other on the rotating face without gaps, the two opposite scrapers of the same pair of scraper sets are equal in length and are in a parallel state, the scraper structure is optimized under the condition that normal use of the scraper is not affected, the weight of the scraper system is reduced, the using effect is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to condenser scraper technical field, especially a kind of scraper condenser scraper system device. BACKGROUND

[0002] In polyester production device, polycondensation reaction needs to be carried out under vacuum negative pressure, and the mixed steam in reactor is extracted from reactor by vacuum system through gas phase pipeline connected to polycondensation reactor to create vacuum, and to recover ethylene glycol (EG) in steam and remove small molecular components entrained in steam mixture and reduce the load of vacuum system, the extracted gas needs to be condensed.

[0003] Scraper condenser is a kind of equipment for capturing and condensing reaction steam, and most of the existing polyester devices use horizontal scraper condenser, which is composed of vertical sprayer and horizontal scraper, wherein the horizontal scraper is rotated by the driving device with scraper system, and the steam mixture extracted from polycondensation reactor enters the spray condenser, and the spray EG liquid for cooling is sprayed from the upper nozzle of the condenser, to capture and condense the condensable components in the high-temperature process steam extracted from the reactor, and to cool and absorb, while a large amount of oligomers will be bonded at the hot-cold interface, which needs to be scraped off by the rotating scraper, and the EG mixed suspension sprayed down is discharged to the low-position liquid seal tank through the atmospheric leg, which can solve the problems of oligomer accumulation at the hot-cold interface of the scraper and blockage of gas phase inlet, prevent the formation of large oligomers inside the scraper, so as to keep the gas phase pipeline of gas phase inlet and liquid phase outlet unobstructed, ensure the continuous and normal production, and reduce the load of vacuum system.

[0004] The scraper system is composed of scraper assembly, long shaft and bearing, and is realized by driving device composed of motor, speed reducer and connecting piece.

[0005] Most of the horizontal scraper condensers in the existing polyester devices are divided into two sets of sectional scrapers, one large and one small, with suspended bearings in the middle, the small scraper in the front section is symmetrical two small straight knives, and the large scraper in the rear end is composed of three groups of cross-symmetrical four pairs of long oblique knives, four-way two-way perpendicular connecting support components are needed between the fixed parts on the long shaft and the long knives, and two groups of connecting support components are needed in the middle part for reinforcement, as the rear cavity is cross-symmetrically configured with oblique knives, and the corresponding support structure is added, the overall scraper structure is large in mass, the indirect bearing load is too large, and the abnormal wear causes the scraper to fail to operate normally during the operation cycle. UTILITY MODEL CONTENTS

[0006] The utility model discloses a purpose at providing a kind of scraper condenser scraper system device, can optimize scraper structure under the condition that not affecting scraper normal use, reduce scraper system mass, improve use effect, prolong service life, effectively solve the problems mentioned in background art.

[0007] The utility model provides a kind of scraper condenser scraper system device, including spindle, the spindle is provided with several one-letter type scraper, the spindle end is provided with end scraper, the spindle is installed with several support, the end of support away from spindle is provided with mounting assembly, the scraper is fixedly connected on support by mounting assembly.

[0008] Preferably, the spindle is divided into front, middle and rear three sections, and a one-letter type scraper is arranged on each section.

[0009] Preferably, the end scraper is connected to the rear section scraper, and an end support is arranged between the end scraper and the spindle.

[0010] Preferably, the mounting assembly includes a connecting block and a plug rod, the connecting block is abutted on one side of the support, and the plug rod is fixedly connected to the middle part of the connecting block.

[0011] Preferably, the connecting block is fixedly connected with a limiting rod at both ends, and the scraper is correspondingly provided with a plug hole and a limiting hole.

[0012] Preferably, the plug rod and the limiting rod are respectively inserted into the plug hole and the limiting hole.

[0013] Preferably, the plug rod is fixedly connected with a first anti-slip ring at one end.

[0014] Preferably, the plug rod is internally threadedly connected with a screw at one end, and the screw is fixedly sleeved with a sleeve ring.

[0015] Preferably, the screw and the sleeve ring are rotatably connected in the mounting sleeve, and the inner wall of the mounting sleeve is abutted on the first anti-slip ring.

[0016] Preferably, the mounting sleeve is fixedly connected with a second anti-slip ring at one end, and the second anti-slip ring is abutted on one side of the support.

[0017] Compared with the prior art, the scraper condenser scraper system device provided by the utility model embodiment has the following advantages:

[0018] 1. The utility model discloses a structure that the original single knife set cross two two perpendicular mode is changed into single knife set horizontal mode and adjacent knife set perpendicular, the oblique knife is changed into straight knife mode, and the front end scraper group and the middle end scraper group are in the perpendicular state, and the middle end scraper group and the rear end scraper group are in the perpendicular state, and the front end scraper group and the tail end scraper group are in a plane state, and the first scraper, the second scraper and the third scraper are filled and do not leave the gap on the rotation surface, and the same scraper group is in parallel state, and the scraper structure is optimized and the number of connecting support and scraper is reduced, so that the material and weight of the whole scraper device are greatly reduced, the static load of the whole scraper device is greatly reduced, the static load on the suspension bearing is reduced, the bearing wear is reduced, the operation cycle is lengthened, the bottleneck effect of the whole device running here is reduced, the maintenance cycle is prolonged, the maintenance frequency is reduced, the additional loss is reduced, the scraper structure is optimized under the condition of not affecting the normal use of the scraper, the scraper system quality is reduced, the use effect is improved, and the service life is prolonged.

[0019] 2. The utility model discloses a screw rod and the one end thread connection of plug rod, make installation cover and connecting block respectively with the both sides of support piece and resist tightly, through first anti -skid ring and second anti -skid ring, can prevent installation cover and screw rod reverse rotation and lead to connecting loose, has guaranteed the stability that support piece and scraper connect, compared with traditional bolt connection mode, can improve the stability of connection, prevent long -term work and loose, compared with the connection mode of welding, can be convenient for the scraper to dismouting maintenance or replacement. ACCURATE DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be to the drawings needed in the embodiment used briefly introduce, should understand, the following drawings only shows some embodiments of the utility model, therefore should not be regarded as the limitation to the range, for ordinary skilled person in the art comes, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0021] Figure 1 It is the overall structure schematic diagram of the embodiment of the utility model;

[0022] Figure 2 It is the front view structure schematic diagram of the embodiment of the utility model;

[0023] Figure 3 It is the side view structure schematic diagram of the embodiment of the utility model;

[0024] Figure 4 It is the overhead structure schematic diagram of the embodiment of the utility model;

[0025] Figure 5 It is the Figure 3 The a-a section structure schematic diagram of the embodiment of the utility model;

[0026] Figure 6 It is the three-dimensional structure schematic view of the last scraper of the utility model embodiment;

[0027] Figure 7 It is the three-dimensional structure schematic view of the last scraper of the utility model embodiment; Figure 3 It is the three-dimensional structure schematic view of the b-b section of the utility model embodiment;

[0028] Figure 8 It is the structure explosion drawing of the mounting assembly of the utility model embodiment;

[0029] Figure 9 It is the schematic view of the main shaft partial structure of the utility model embodiment.

[0030] Reference signs:

[0031] 00a, first scraper; 1a, rear first scraper; 3a, front first scraper; 11a, last scraper one; 1ae, rear support piece one; 2ae, middle support piece one; 3ae, middle support piece two; 4ae, front support piece one; 11ae, last support piece one;

[0032] 00b, second scraper; 2b, middle second scraper; 2be, middle support piece three; 3be, middle support piece four;

[0033] 00c, third scraper; 1c, rear third scraper; 3c, front third scraper; 11c, last scraper two; 11ce, last support piece two; 1ce, rear support piece two; 2ce, middle support piece five; 3ce, middle support piece six; 4ce, front support piece two;

[0034] 00d, fourth scraper; 2d, middle fourth scraper; 2de, middle support piece seven; 3de, middle support piece eight;

[0035] 00e, main shaft;

[0036] 5, mounting assembly; 51, connecting block; 52, insertion rod; 53, limiting rod; 54, first anti-skid ring; 55, mounting sleeve; 56, second anti-skid ring; 57, screw rod; 58, sleeve ring; 6, insertion hole; 7, limiting hole. DETAILED DESCRIPTION

[0037] Some embodiments of the utility model will be described in detail below with reference to the drawings. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0038] Please refer to Figures 1-8The utility model embodiment provides a kind of scraper condenser scraper system device, including main shaft 00e, several present one character type scraper are provided on main shaft 00e, the end of main shaft 00e is provided with end scraper, several supporting members are installed on main shaft 00e, the end of supporting member away from main shaft 00e is provided with mounting assembly 5, scraper is fixedly connected on supporting member by mounting assembly 5.

[0039] Main shaft 00e is divided into front, middle, back three sections, and one character type scraper is provided on each section, and the two two perpendicular settings of three one character type scrapers, end scraper is connected to the rear scraper, and end support is provided between end scraper and main shaft 00e.

[0040] In the present application, several scrapers are rotated clockwise in sequence from the top, and the first scraper 00a, the second scraper 00b, the third scraper 00c and the fourth scraper 00d are sequentially arranged from the top.

[0041] Specifically, as shown in Figure 9 The hub surface is provided with a key groove, and the surface of the main shaft 00e is provided with a key block matched with the key groove, so that the plurality of supporting members are mounted on the main shaft 00e.

[0042] As a further optimization of the present scheme, the main shaft 00e and the supporting member can also be fixedly connected by welding or jackscrew.

[0043] Finally, by changing the combination mode of the front, middle and rear scrapers, the scraper structure is optimized and the number of connecting supporting members and scrapers is reduced, the scraper structure is optimized without affecting the normal use of the scraper, the quality of the scraper system is reduced, the use effect is improved, and the service life is prolonged.

[0044] The present scheme adopts a split type, which can improve the use effect, and the front, middle and rear scrapers can be staggered and segmented to scrape oligomers, instead of being scraped from front to back, which facilitates EG flushing and removal.

[0045] The combination mode of the three groups of scrapers is changed, that is, the original single-knife group cross two two perpendicular mode is changed to single-knife group one character mode and adjacent knife group perpendicular structure.

[0046] The optimized scraper structure is: change the oblique knife to straight knife mode.

[0047] The number of connecting supporting members and scrapers is reduced: after changing the cross mode to one character mode, the supporting connecting members and scrapers are directly saved by half, and the corresponding quality is reduced.

[0048] Specifically, the rear first scraper 1a, the rear third scraper 1c and the rear support one 1ae, the middle support one 2ae, the rear support two 1ce and the middle support five 2ce form a pair of one-letter scraper group, the middle second scraper 2b and the middle fourth scraper 2d and the middle support three 2be, the middle support four 3be, the middle support seven 2de and the middle support eight 3de form a pair of one-letter scraper group; the front first scraper 3a and the front third scraper 3c and the middle support two 3ae, the front support one 4ae, the middle support six 3ce and the front support two 4ce form a pair of one-letter scraper group, the last scraper one 11a and the last scraper two 11c and the last support one 11ae and the last support two 11ce form a last scraper group;

[0049] The front end scraper group and the middle end scraper group are in a vertical state, the middle end scraper group and the rear end scraper group are in a vertical state, the front end scraper group and the tail end scraper group are in a plane state, the rear first scraper 1a, the middle second scraper 2b and the front third scraper 3c are mutually filled on the rotation surface and no gap is left, and the same pair of scraper groups are opposite to two scrapers of the same length and in a parallel state.

[0050] Through the above optimization, the material and weight of the overall scraper device are greatly reduced, the static load of the whole scraper device is greatly reduced, the static load acting on the suspension bearing is reduced, the bearing wear is slowed down, the operation cycle is lengthened, and then the bottleneck effect of the overall device running here will be reduced, the maintenance cycle is prolonged, the maintenance frequency is reduced, and the additional loss is reduced.

[0051] The mounting assembly 5 comprises a connecting block 51 and a plug rod 52, the connecting block 51 is abutted to the side of the support, the plug rod 52 is fixedly connected to the middle part of the connecting block 51, the connecting block 51 is fixedly connected to a limiting rod 53 at both ends, the scraper is correspondingly provided with a plug hole 6 and a limiting hole 7, the plug rod 52 and the limiting rod 53 are respectively plugged into the plug hole 6 and the limiting hole 7, one end of the plug rod 52 is fixedly connected with a first anti-skid ring 54, one end of the plug rod 52 is internally threadedly connected with a screw rod 57, a sleeve ring 58 is fixedly sleeved on the screw rod 57, the screw rod 57 and the sleeve ring 58 are rotationally connected in a mounting sleeve 55, the inner wall of the mounting sleeve 55 is abutted to the first anti-skid ring 54, one end of the mounting sleeve 55 is fixedly connected with a second anti-skid ring 56, and the second anti-skid ring 56 is abutted to the side of the support.

[0052] Specifically, the plug rod 52 and the limiting rod 53 are plugged into the support and the scraper, the mounting sleeve 55 and the connecting block 51 are respectively abutted to the two sides of the support by threadedly connecting the screw rod 57 with one end of the plug rod 52, the first anti-skid ring 54 and the second anti-skid ring 56 are provided to prevent the mounting sleeve 55 and the screw rod 57 from rotating reversely to cause loosening of the connection, thereby ensuring the stability of the connection between the support and the scraper, compared with the traditional bolt connection mode, the stability of the connection can be improved, the loosening caused by long-term work can be prevented, compared with the welding connection mode, the scraper can be easily disassembled, maintained or replaced.

[0053] In summary, the working principle of the scraper system device of the scraper condenser according to the embodiments of the present application is as follows:

[0054] The present application optimizes the scraper, changes the original single-knife-group cross two-by-two vertical mode to a single-knife-group straight mode with adjacent knife groups being vertical, and after changing the cross mode to the straight mode, the support connecting piece and the scraper material are directly saved by half, the corresponding mass is reduced, the oblique knife is changed to a straight knife mode, the front-end scraper group and the middle-end scraper group are in a vertical state, the middle-end scraper group and the rear-end scraper group are in a vertical state, the front-end scraper group and the tail-end scraper group are in a plane state, the first scraper 1a, the second scraper 2b and the third scraper 3c are filled with each other on the rotating surface without leaving a gap, the same pair of scraper groups are in a parallel state, the same pair of scrapers are equal in length, the material and weight of the whole scraper device are greatly reduced, the static load of the whole scraper device is greatly reduced, the static load acting on the suspension bearing is reduced, the bearing wear is slowed down, the operation cycle is lengthened, and then the bottleneck effect of the whole device running at this point is reduced, the maintenance cycle is prolonged, the maintenance frequency is reduced, and the additional loss is reduced.

[0055] The above is only the preferred embodiment of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A scraped-surface condenser scraper system apparatus comprising a main shaft (00e), characterized in that: The main shaft (00e) is provided with a plurality of linear scrapers, the end of the main shaft (00e) is provided with an end scraper, a plurality of supporting members are installed on the main shaft (00e), the end of the supporting member away from the main shaft (00e) is provided with a mounting assembly (5), and the scraper is fixedly connected to the supporting member through the mounting assembly (5).

2. The scraper condenser doctor system apparatus of claim 1, wherein: The main shaft (00e) is divided into three sections, i.e., front, middle and rear sections, and a linear scraper is arranged on each section, and the linear scrapers of the three sections are vertically arranged in pairs.

3. The scraper condenser doctor system apparatus of claim 1, wherein: The end scraper is connected to the rear scraper, and an end supporting member is arranged between the end scraper and the main shaft (00e).

4. The scraper condenser doctor system apparatus of claim 1, wherein: The mounting assembly (5) comprises a connecting block (51) and a plug rod (52), the connecting block (51) is abutted to one side of the supporting member, and the plug rod (52) is fixedly connected to the middle part of the connecting block (51).

5. The scraper condenser doctor system apparatus of claim 4, wherein: The connecting block (51) is fixedly connected with a limiting rod (53) at both ends, and the scraper is correspondingly provided with a plug hole (6) and a limiting hole (7).

6. The scraper condenser doctor system apparatus of claim 5, wherein: The plug rod (52) and the limiting rod (53) are respectively inserted into the plug hole (6) and the limiting hole (7).

7. The scraper condenser doctor system apparatus of claim 4, wherein: One end of the plug rod (52) is fixedly connected with a first anti-skid ring (54).

8. The scraper condenser doctor system apparatus of claim 7, wherein: One end of the plug rod (52) is internally threadedly connected with a screw rod (57), and the screw rod (57) is fixedly sleeved with a sleeve ring (58).

9. The scraper condenser doctor system apparatus of claim 8, wherein: The screw rod (57) and the sleeve ring (58) are rotatably connected in the mounting sleeve (55), and the inner wall of the mounting sleeve (55) is abutted to the first anti-skid ring (54).

10. The scraper condenser doctor system apparatus of claim 9, wherein: One end of the mounting sleeve (55) is fixedly connected with a second anti-skid ring (56), and the second anti-skid ring (56) is abutted to one side of the supporting member.

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