CN114345046B

CN114345046B - TDO transverse stretching heat energy recovery system

Info

Publication number: CN114345046B
Application number: CN202210020488.9A
Authority: CN
Inventors: 朱东伟
Original assignee: Shaoxing Riyue New Material Co ltd
Current assignee: Shaoxing Riyue New Material Co ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2023-04-28
Anticipated expiration: 2042-01-10
Also published as: CN114345046A

Abstract

The invention discloses a TDO transverse stretching heat energy recovery system, wherein one end of a first air pipe is connected with a discharge end of a transverse stretching machine, the other end of the first air pipe is connected with an inlet end of a filter, one end of a second air pipe is connected with an outlet end of the filter, the other end of the second air pipe is connected with a hot air device, the filter comprises a driving device and a rotary drum, a plurality of cavities are uniformly distributed in the rotary drum along the circumference at intervals, a filter screen or a filter core is arranged in each cavity, a filter inlet and a filter outlet which are communicated with the corresponding cavity are arranged on the rotary drum, lantern rings which are communicated with the first air pipe and the filter are respectively arranged at the connecting end of the first air pipe and the filter, the connecting end of the second air pipe and the filter are respectively connected with the lantern rings in a sealing and switching mode on the rotary drum, the first air pipe is communicated with the filter inlet of one of the cavities, the second air pipe is communicated with the corresponding filter outlet of the second air pipe, and the rotary drum is intermittently rotated through the driving device, and the cavities are alternately communicated with the first air pipe and the second air pipe. The invention provides a TDO transverse stretching heat energy recovery system which does not need to be stopped due to cleaning of a filtering device and is beneficial to improving production efficiency.

Description

TDO transverse stretching heat energy recovery system

Technical Field

The invention discloses a TDO transverse stretching heat energy recovery system, and belongs to the technical field of heat energy recovery equipment.

Background

The transverse stretching machine set for the polyester film softens the polyester film at the high temperature of 130-140 ℃ when in transverse stretching, the transverse stretching machine set is completed by a hot air system of a TDO oven, the system consists of a fan, a motor, a heating device, a static pressure box and the like, blown hot air has higher temperature for tail gas generated by heating the polyester film, and waste of heat energy is caused if the tail gas is directly discharged, so that the heat energy can be recovered through heat exchange of the heat exchanger.

Disclosure of Invention

The technical problem to be solved by the invention is to provide the TDO transverse stretching heat energy recovery system, which does not need to be stopped due to cleaning of the filtering device, is beneficial to improving the production efficiency, and can solve the defects in the prior art.

The technical scheme of the invention is as follows: including horizontal stretcher, first tuber pipe, second tuber pipe, filter, hot air device, first tuber pipe one end is connected with the horizontal stretcher discharge end, and the other end is connected with the filter entrance point, and second tuber pipe one end is connected with filter exit end, and the other end is connected with hot air device, hot air device is connected with horizontal stretcher, blows hot air to the interior of horizontal stretcher, the filter includes drive arrangement, rotary drum, a plurality of appearance chambeies have been evenly distributed along circumference interval in the rotary drum, hold the intracavity and install filter screen or filter core, offered on the rotary drum with the filtration import and the filtration export that correspond appearance chamber intercommunication, first tuber pipe and filter link, second tuber pipe and filter link all are equipped with the lantern ring that is linked together with it, the lantern ring seals the switching on the rotary drum, makes the filtration import intercommunication of first tuber pipe and one of them appearance chamber, and the second tuber pipe communicates with the filtration export that corresponds, and pass through drive arrangement makes intermittent type rotation, realizes that each holds chamber and first tuber pipe, second tuber pipe intercommunication in turn.

Further hold the chamber and be close to the filtration import end and be equipped with the drain, be equipped with the valve on the drain, with be connected with the backwash pipe on the lantern ring that the second tuber pipe is connected, the backwash pipe other end is connected with washing unit, and first tuber pipe and one of them holds the filtration import intercommunication in chamber, and when second tuber pipe and the filtration export intercommunication that corresponds, backwash pipe and the filtration export intercommunication in another holds the chamber, and when the rotary drum was done intermittent type rotation, backwash pipe and the filtration export in each holds the chamber were in turn communicated.

Further the lantern ring both ends are provided with rotary drum outer wall matched with bearing seal, realize the rotation of lantern ring and rotary drum be connected and radial seal, all be equipped with a plurality of sealing device on the rotary drum outer wall, sealing device is located between two adjacent filtration import and two adjacent filtration export, and sealing device contains the axial setting and pastes tight sealing member with the lantern ring inner wall, the sealing member both ends link to each other with the bearing seal at lantern ring both ends respectively.

The sealing device further comprises a plurality of elastic pieces and a limiting groove formed in the outer wall of the rotary drum, wherein the sealing pieces are arranged in the limiting groove and can slide radially, and the elastic pieces are positioned between the limiting groove and the sealing pieces and exert elastic force for forcing the sealing pieces to move outwards.

Further filter screen or filter core detachable installation hold the intracavity, be equipped with on the rotary drum with the corresponding installation mouth that holds the chamber intercommunication, install the lid that can seal it on the installation mouth.

The further multiple cavities are arranged vertically or obliquely, the filtering inlet is positioned at the low position of the cavity, and the filtering outlet is positioned at the high position of the cavity.

Further, the drain outlet is arranged at the bottom end of the containing cavity, and a certain space is kept between the drain outlet and the filtering inlet.

According to the invention, high-temperature tail gas discharged by the transverse stretcher enters the filter through the first air pipe to filter impurities, then enters the hot air device through the second air pipe to be heated and blown for cyclic utilization, the filter comprises the driving device and the rotary drum, a plurality of containing cavities are uniformly distributed in the rotary drum along the circumference, a filter screen or a filter core is arranged in each containing cavity, a filter inlet and a filter outlet which are communicated with the corresponding containing cavity are formed in the side wall of the rotary drum, a lantern ring which is communicated with the connecting end of the first air pipe and the filter, the connecting end of the second air pipe and the filter are respectively arranged at the connecting end of the filter, the lantern ring is hermetically connected to the rotary drum, the first air pipe is communicated with the filter inlet of one of the containing cavities in an aligned mode, the second air pipe is communicated with the corresponding filter outlet in an aligned mode, the tail gas enters the containing cavity through the filter inlet of the corresponding containing cavity to be filtered by the filter screen or the filter core and then is conveyed to the second air pipe through the filter outlet after being filtered by the filter screen or the filter core, and when the filter screen or the filter core in the current containing cavity is kept more impurities due to the accumulation after a period of time, the driving device drives the rotary drum to rotate a certain angle, the filter inlet of the next containing cavity is communicated with the first air pipe in an aligned mode, the filter inlet and the filter inlet of the filter cavity is communicated with the first air pipe, the filter cavity and the filter inlet of the filter cavity is communicated with the second air in an aligned mode, and the filter inlet and the filter cavity, and the filter chamber is communicated with the filter chamber.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic illustration of a filter;

FIG. 3 is an exploded view of the filter;

FIG. 4 is a top view of the filter;

FIG. 5 is a cross-sectional view taken along the direction A of FIG. 4;

fig. 6 is a B-direction cross-sectional view of fig. 4.

The figure shows: a transverse stretcher 1; a first air duct 2; a second air duct 3; a filter 4; a hot air device 5; a drum 6; the

cavities

7, 7A;

filter screens

8, 8A; filter inlets 9, 9A;

filter outlets

10, 10A;

collars

11A, 11B; a motor 12; covers 13, 13A; a backwash tube 14; a shaft seal 15; a seal 16; a spring 17; a limit groove 18;

valves

19, 19A.

Detailed Description

Embodiments of the invention: as shown in fig. 1 to 6, a TDO transverse stretching heat energy recovery system comprises a transverse stretching machine 1, a first air pipe 2, a second air pipe 3, a filter 4 and a hot air device 5, wherein one end of the first air pipe 2 is connected with the discharge end of the transverse stretching machine 1, the other end is connected with the inlet end of the filter 4, one end of the second air pipe 2 is connected with the outlet end of the filter 4, the other end is connected with the hot air device 5, the hot air device 5 is connected with the inlet end of the transverse stretching machine 1 to blow hot air to the hot air device, wherein the hot air device 5 comprises a heating unit, a fan, a motor and the like, the filtered tail gas enters the hot air device 5 for reheating and blowing in the prior art, the heat energy is fully utilized, the filter 4 comprises a driving device and a rotary drum 6, two or more than two containing

cavities

7 and 7A are uniformly distributed on the circumference with the same radius in the rotary drum 6, the containing

cavities

7 and 7A are internally provided with

filter screens

8 and 8A, the outer wall of the rotary drum 6 is provided with filter inlets 9 and 9A and

filter outlets

10 and 10A which are communicated with

corresponding accommodating cavities

7 and 7A, the connecting end of the first air pipe 2 and the filter 4 is provided with a lantern ring 11A which is communicated with the first air pipe 2, the connecting end of the second air pipe 2 and the filter 4 is provided with an upper lantern ring 11B which is communicated with the second air pipe 3, the

lantern rings

11A and 11B are in sealing connection with the rotary drum 6, the first air pipe 2 is communicated with the filter inlet 9 of the accommodating cavity 7, the second air pipe 2 is communicated with the filter outlet 10, the driving device comprises a motor 12 and a gear set which is driven by the motor 12, the rotary drum 6 is provided with a rotating shaft which is connected with the gear set, the motor 12 rotates for a certain number of turns at certain time intervals through a program, the gear set drives the rotary drum 6 to rotate for a certain angle at certain time intervals, and the accommodating cavity 7 is communicated with the first air pipe 2 and the second air pipe 3 for a certain time, the rotary drum 6 rotates certain angle, make the filtration import 9A of next appearance chamber 7A aim at the intercommunication with first tuber pipe 2, filter outlet 10A and second tuber pipe 3 intercommunication, rotate like this and recycle, wherein be equipped with the installing port with

corresponding appearance chamber

7, 7A intercommunication on the rotary drum 6, install

lid

13, 13A that can seal it on the installing port,

appearance chamber

7, 7A is the step chamber,

filter screen

8, 8A is laid on

appearance chamber

7, 7A's step face through the installing port in,

appearance chamber

7, 7A can be to

filter screen

8, 8A dismouting clearance under the user state not, need not stop because of clearance filter equipment, improve production efficiency.

As a preference, the end of the containing

cavity

7, 7A close to the filtering inlet 9, 9A is provided with a drain outlet, the drain outlet is provided with a

valve

19, 19A, the lantern ring 11B is connected with a backwash pipe 14, the other end of the backwash pipe 14 is connected with a flushing device, the first air pipe 2 is communicated with the filtering inlet 9 of the containing cavity 7, the second air pipe 3 is communicated with the corresponding filtering outlet 10, the backwash pipe 14 is communicated with the filtering outlet 10A of the containing cavity 7A, the flushing device backflushes the filter screen 8A in the containing cavity 7A by injecting washing liquid through the backwash pipe 14, the backwashed impurities and washing liquid are discharged through the drain outlet, when the rotary drum 6 intermittently rotates, the backwash pipe 14 is communicated with the filtering outlets of the containing cavities in turn, the purpose of automatically cleaning the filter screen after cleaning is realized in turn, and the filter screen after cleaning is used along with the rotation of the rotary drum 6.

As a preference, shaft seals 15 matched with the outer wall of the rotary drum 6 are arranged at two ends of the

collars

11A and 11B, so that the rotary connection and radial sealing of the

collars

11A and 11B and the rotary drum 6 are realized, a plurality of sealing devices are arranged on the outer wall of the rotary drum 6, the sealing devices are positioned between two adjacent filter inlets 9 and 9A and two

adjacent filter outlets

10 and 10A, in order to ensure that tail gas is not influenced when the rotary drum 6 rotates, the filter inlets and the filter outlets on the rotary drum 6 are larger than the pipe openings of the first air pipe and the second air pipe, the intervals between the two adjacent filter inlets and the two adjacent filter outlets are smaller, the first air pipe 2 can be communicated with at least one filter inlet in the rotary drum 6 rotating process, the sealing devices comprise sealing pieces 16 which are axially arranged close to the inner walls of the

collars

11A and 11B, the sealing pieces 16 are made of wear-resistant materials such as polytetrafluoroethylene, the two ends of the sealing pieces are respectively connected with the

corresponding collars

11A and 11B, and the sealing pieces 16 and the two ends 15 matched with the rotary drum 6 isolate the filter outlets from the filter inlets and the filter outlets in the rotary drum 6, so that the filter outlets and the first air pipe and the second air pipe cannot leak into other air cavities.

As a preferred mode, the sealing device comprises a plurality of springs 17 and limiting grooves 18 formed in the outer wall of the rotary drum 6, the sealing piece 16 is slidably connected in the limiting grooves 18 through bolts and can radially slide, the springs 17 are sleeved on the bolts and compressed between the bottoms of the limiting grooves 18 and the sealing piece 16, the sealing piece 16 is pushed to move outwards to be tightly attached to the inner walls of the

lantern rings

11A and 11B, and even if the sealing piece 16 is gradually worn, the sealing piece 16 can move outwards to be supplemented to be tightly attached to the inner walls of the

lantern rings

11A and 11B all the time, so that a sealing effect is achieved.

As a preference,

hold chamber

7, 7A vertical or slope setting, filter import 9, 9A is located and holds

chamber

7, 7A low level,

filter export

10, 10A is located and holds

chamber

7, 7A high level, the drain is located and holds

chamber

7, 7A bottom, keep certain space between drain and the filter import 9, 9A, tail gas passes through the filter screen from down upwards, impurity under the filtration can fall and deposit in the space between drain and the filter import, extension filter screen's live time, during the backwash, the washing liquid top-down washs, the discharge of washing liquid after the convenient washing and the impurity of retaining.

Claims

1. The utility model provides a TDO transversely stretches heat recovery system, includes transverse stretching machine, first tuber pipe, second tuber pipe, filter, hot air device, its characterized in that: one end of the first air pipe is connected with the discharge end of the transverse stretching machine, the other end of the first air pipe is connected with the inlet end of the filter, one end of the second air pipe is connected with the outlet end of the filter, the other end of the second air pipe is connected with the hot air device, the hot air device is connected with the transverse stretching machine and blows hot air into the transverse stretching machine, the filter comprises a driving device and a rotary drum, a plurality of containing cavities are uniformly distributed in the rotary drum at intervals along the circumference, a filter screen or a filter core is arranged in each containing cavity, a filter inlet and a filter outlet which are communicated with the corresponding containing cavity are formed in the rotary drum, the connecting ends of the first air pipe and the filter and the connecting ends of the second air pipe and the filter are respectively provided with a lantern ring which are communicated with the connecting ends of the first air pipe and the filter, the lantern ring is in a sealing and switching mode on the rotary drum, the first air pipe is communicated with the filter inlet of one of the containing cavities, the second air pipe is communicated with the corresponding filter outlet, and the rotary drum is intermittently rotated through the driving device, and the containing cavities are alternately communicated with the first air pipe and the second air pipe. The filter comprises a rotary drum, a first air pipe, a second air pipe, a flushing device, a filter inlet, a filter outlet, a valve, a sleeve ring, a backwash pipe and a flushing device, wherein the filter inlet is close to the filter inlet of the first air pipe; the two ends of the lantern ring are provided with shaft seals matched with the outer wall of the rotating drum, so that the rotating connection and radial sealing of the lantern ring and the rotating drum are realized, the outer wall of the rotating drum is provided with a plurality of sealing devices, the sealing devices are positioned between two adjacent filtering inlets and two adjacent filtering outlets, each sealing device comprises a sealing element which is axially arranged and tightly attached to the inner wall of the lantern ring, and two ends of each sealing element are respectively connected with the shaft seals at two ends of the lantern ring; the sealing device comprises a plurality of elastic pieces and a limiting groove formed in the outer wall of the rotary drum, wherein the sealing pieces are arranged in the limiting groove and can slide radially, and the elastic pieces are positioned between the limiting groove and the sealing pieces and exert elastic force for forcing the sealing pieces to move outwards; the filter screen or the filter core is detachably arranged in the containing cavity, the rotary drum is provided with an installation opening communicated with the corresponding containing cavity, and the installation opening is provided with a cover body which can be closely adhered to the installation opening.

2. The TDO transverse tensile heat recovery system of claim 1, wherein: the plurality of the cavities are arranged vertically or obliquely, the filtering inlet is positioned at the low position of the cavity, and the filtering outlet is positioned at the high position of the cavity.

3. The TDO transverse tensile heat recovery system of claim 2, wherein: the drain is arranged at the bottom end of the containing cavity, and a certain space is kept between the drain and the filtering inlet.