CN219701135U - Polyester bottle chip production reaction vacuum system - Google Patents

Abstract

The utility model relates to a polyester bottle piece production reaction vacuum system, which comprises a condenser, a gas-liquid separator, an impurity tank and a gas regulating component, wherein the condenser comprises a cylinder body, one or more first filter cylinders are arranged in the cylinder body, the cylinder body is provided with an inlet, a first outlet and a second outlet, the inlet of the condenser is communicated with a reaction kettle, and a plurality of filtering holes are formed in the first filter cylinders; the gas-liquid separator comprises a tank body, one or more second filter cartridges are arranged in the tank body, the tank body is communicated with a first outlet of a cylinder body of the condenser and a main pump of the vacuum pump, and a plurality of filtering holes are formed in the second filter cartridges; the impurity tank is communicated with the second outlet of the condenser and is used for collecting impurities flowing out of the condenser; the gas adjusting component comprises a gas source, and the gas source is communicated with the impurity tank through a connecting pipeline and is used for conveying gas to the impurity tank. The system reduces the particle impurities from being sucked into the main pump of the vacuum pump, prevents the vacuum loss of the device caused by the clamping pump from affecting the production, and improves the vacuum operation stability.

Description

Polyester bottle chip production reaction vacuum system

Technical Field

The utility model relates to a reaction vacuum system for producing polyester bottle flakes.

Background

The current process flow for producing polyester filaments by using waste polyester bottle chips comprises the following steps: depolymerizing the recovered PET bottle flakes in the melt extrusion process to reduce the molecular weight, filtering with high precision, entering a polymerization tackifying reaction stage, and further devolatilizing and removing impurities by depending on high vacuum of a tackifying reaction system, wherein the main conditions of the tackifying reaction are as follows: the high vacuum system, see fig. 9, comprises a separator 2', a condenser 1' and a residue tank 3', wherein the upper part of the vacuum separator is connected with a nitrogen vacuum adjusting pipeline, the vacuum degree is adjusted by adjusting the nitrogen amount, an air source is communicated with an inlet of the separator, gas is directly communicated into the separator, the node position of the original vacuum conditioner is very close to the outlet of the separator, the effect of nitrogen on purging and cooling the oligomer gas in the separator is small, the filtering particles of the separator are incomplete, and part of nitrogen and the oligomer-containing gas are pumped by a Roots vacuum pump main pump 8. Non-condensing gas and solid particle impurities accumulate in the pump shell to form scale, so that the main pump is frequently blocked and is not beneficial to the stability of a high vacuum system. In addition, the condenser and the separator of the system are empty filter cartridges, the trapping of the oligomer is incomplete, and the oligomer still enters the main pump of the vacuum pump.

Disclosure of Invention

The utility model aims to provide a reaction vacuum system for producing polyester bottle flakes, which aims to solve the problem that the production is affected due to the fact that the vacuum of a device is lost due to the fact that an existing oligomer enters a main pump card of a vacuum pump.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a polyester bottle chip production reaction vacuum system, comprising:

the condenser comprises a cylinder body, one or more first filter cartridges are arranged in the cylinder body, the cylinder body is provided with an inlet, a first outlet and a second outlet, the inlet of the condenser is communicated with the reaction kettle, and a plurality of filtering holes are formed in the first filter cartridges;

the gas-liquid separator comprises a tank body, one or more second filter cartridges are arranged in the tank body, the tank body is communicated with a first outlet of a cylinder body of the condenser and a main pump of the vacuum pump, and a plurality of filtering holes are formed in the second filter cartridges;

the impurity tank is communicated with the second outlet of the condenser and is used for collecting impurities flowing out of the condenser;

the gas adjusting assembly comprises a gas source, and the gas source is communicated with the impurity tank through a connecting pipeline and used for conveying gas to the impurity tank.

Preferably, the cylinder body of the condenser and the tank body of the gas-liquid separator are respectively provided with a mounting disc, and a plurality of through holes penetrating through the upper side and the lower side of the mounting disc are formed in the mounting disc; the periphery of one end of first cartridge filter, second cartridge filter all be provided with annular protruding edge, annular protruding edge around the circumference setting of first cartridge filter, second cartridge filter, the other end of first cartridge filter, second cartridge filter pass the through-hole of mounting disc, just the bottom surface of annular protruding edge with the upper surface of mounting disc offset.

Preferably, the inner peripheral surfaces of the cylinder body and the tank body are provided with annular bosses protruding from the inner peripheral surfaces, the annular bosses are provided with upper surfaces and lower surfaces which are oppositely arranged, and connecting surfaces for connecting the upper surfaces and the lower surfaces, and the bottom surface of the mounting plate at least partially abuts against the upper surfaces of the annular bosses so that the mounting plate is fixed in the cylinder body and the tank body.

Preferably, the system further comprises a lifting cover, the lifting cover comprises a cover body and a lifting handle, the cover body is provided with an accommodating space with an opening at one side, the cover body can be covered at one ends of the first filter cylinder and the second filter cylinder, and the lifting handle is arranged at the other side, far away from the opening, of the cover body.

Preferably, the first filter cartridge is provided with a plurality of first filter cartridges, the plurality of first filter cartridges are arranged in parallel, and the extending direction of the first filter cartridges is parallel to the extending direction of the cylinder body.

Preferably, the second filter cartridge is provided with a plurality of second filter cartridges, the plurality of second filter cartridges are arranged in parallel, and the extending direction of the second filter cartridges is parallel to the extending direction of the tank body.

Preferably, jackets are arranged on the peripheries of the cylinder body of the condenser and the tank body of the gas-liquid separator, and a space for containing cooling medium is formed between the jackets and the peripheries of the cylinder body and the tank body.

Preferably, the mounting plate comprises a plate body, and a handle convenient to hold is arranged on the upper surface of the plate body.

Preferably, the connecting pipeline is provided with a valve, and the valve is used for adjusting the gas flow.

Preferably, the mounting plate and the annular boss are provided with corresponding mounting holes, and the mounting plate is fixedly connected with the annular boss through mounting fasteners in the mounting holes.

Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

according to the polyester bottle chip production reaction vacuum system provided by the utility model, nitrogen enters the impurity tank and flows in a mixed mode with the oligomer-containing gas pumped from the reaction kettle, the oligomer is filtered by the first filter cylinder in the condenser cylinder under the purging of the nitrogen, part of non-condensed gas which is not cooled and filtered by the condenser and the oligomer-containing gas enter the tank of the gas-liquid separator for secondary cooling and filtering, so that solid particle impurities are reduced from being sucked into the main pump of the vacuum pump, the phenomenon that the device loses vacuum and influences production is prevented, and the vacuum operation stability is improved; ensuring the stable operation of the device and eliminating the hidden trouble of safety production.

Drawings

FIG. 1 is a diagram showing a structure of a reaction vacuum system for producing polyester bottle flakes provided by the utility model;

FIG. 2 is a diagram showing the internal structure of a condenser and a gas-liquid separator of the vacuum system for producing polyester bottle flakes;

FIG. 3 is a top view of a mounting plate of the polyester bottle chip production reaction vacuum system provided by the utility model;

FIG. 4 is a side view of a mounting plate of the polyester bottle chip production reaction vacuum system provided by the utility model;

FIG. 5 is a front view of a first filter cartridge and a second filter cartridge of the polyester bottle chip production reaction vacuum system provided by the utility model;

FIG. 6 is a top view of a lift cap of the polyester bottle flake production reaction vacuum system provided by the utility model;

FIG. 7 is a side view of a lift cap of the polyester bottle flake production reaction vacuum system provided by the utility model;

FIG. 8 is a top view of an annular boss of the polyester bottle chip production reaction vacuum system provided by the utility model;

FIG. 9 is a block diagram of a conventional vacuum system for producing polyester bottle chips.

In the above figures:

1-a condenser, 11-an inlet, 12-a first outlet, 13-a second outlet;

2-a gas-liquid separator;

3-an impurity tank;

4-a first filter cartridge, a second filter cartridge, 41-a cartridge body, 411-filtering holes, 42-annular convex edges;

5-mounting plate, 51-plate body, 511-through hole, 52-handle;

6-lifting cover, 61-cover body and 62-handle; 7-an annular boss; 8-a main pump of a vacuum pump; 9-valve; 10-jacket; 16-connecting pipes.

Detailed Description

The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to the polyester bottle chip production reaction vacuum system shown in fig. 1 to 8, comprising a condenser 1, a gas-liquid separator 2, an impurity tank 3, a gas regulating component, specifically:

the condenser 1 includes the barrel, be provided with first cartridge filter in the barrel, the barrel has import 11, first export 12, second export 13, the import and the reation kettle intercommunication of condenser 1, first cartridge filter is provided with one or more, first cartridge filter is the cavity barrel, a plurality of filtration holes 411 have been seted up on the first cartridge filter, contain oligomer gas that follow reation kettle was taken out and get into condenser 1 first, condenser 1 entrapment oligomer impurity, set up first cartridge filter and improve the filter effect, increase the dwell time of gas in the barrel promptly, and block impurity and make more impurity stay on first cartridge filter, reduce solid particle impurity and be inhaled in the vacuum pump main pump 8, prevent that the card pump from causing the device to lose vacuum and influence production.

The gas-liquid separator 2 comprises a tank body, a second filter cartridge is arranged in the tank body, the tank body is communicated with a first outlet 12 of a cylinder body of the condenser 1 and a main pump 8 of the vacuum pump, a plurality of filtering holes 411 are formed in the second filter cartridge, one or more second filter cartridges are arranged, gas discharged from the first outlet 12 of the condenser 1 enters the tank body of the gas-liquid separator 2, the gas-liquid separator 2 further captures oligomer impurities, the second filter cartridges are arranged to improve the filtering effect, namely the residence time of the gas in the tank body is prolonged, impurities are blocked to enable more impurities to remain on the second filter cartridges, the solid particle impurities are reduced to be sucked into the main pump 8 of the vacuum pump, and the phenomenon that the device loses vacuum and the production is influenced due to the fact that the pump is blocked is prevented; the problems that partial nitrogen is sucked into a pump in the vacuum process of a Roots vacuum pump-pumped reaction kettle, nitrogen is utilized to purge non-condensed gas and particle impurities, the cooling and filtering effects of a condenser 1 and a gas-liquid separator 2 are enhanced, and the vacuum operation stability is improved.

The impurity tank 3 communicates with the second outlet 13 of the condenser 1 for collecting impurities flowing out of the condenser 1, and the impurity tank 3 may be a cylinder or a square body.

The gas regulating component comprises a gas source, the gas source is communicated with the impurity tank 3 through a connecting pipeline 16 and is used for conveying gas to the impurity tank 3, the gas is nitrogen, the nitrogen enters the impurity tank 3 through regulating valves to control the size, the gas is mixed with oligomer-containing gas pumped from the reaction kettle and flows, the oligomer is filtered by a first filter cylinder in the cylinder of the condenser 1 under the purging of the nitrogen, partial non-condensed gas which is not cooled and filtered by the condenser 1 and the oligomer-containing gas enter the tank of the gas-liquid separator 2 to be cooled and filtered for the second time, the oligomer capturing and filtering of the condenser 1 and the gas-liquid separator 2 are effectively enhanced, solid particle impurities are reduced to be sucked into a main pump 8, and the phenomenon that the vacuum loss of the device is caused by the clamping pump to influence the production is prevented.

In this example, the cylindrical body of the condenser 1 and the tank body of the gas-liquid separator 2 are both provided with a disc-shaped mounting plate 5, the mounting plate 5 is provided with a plurality of through holes 511 penetrating through the upper side and the lower side of the mounting plate 5, and the axial direction of the through holes 511 is parallel to the axial direction of the mounting plate 5. The periphery of the one end of first cartridge filter, second cartridge filter 4 all is provided with annular protruding edge 42, and annular protruding edge 42 is around the periphery setting of first cartridge filter, second cartridge filter 4, and the periphery diameter of annular protruding edge 42 is greater than the periphery diameter of first cartridge filter, second cartridge filter 4 promptly, and annular protruding edge 42 can be the seal ring.

The other ends of the first filter cartridge and the second filter cartridge penetrate through the through holes of the mounting plate 5, the bottom surfaces of the annular convex edges 42 are propped against the upper surface of the mounting plate 5, so that the first filter cartridge and the second filter cartridge are fixed on the mounting plate 5 to prevent the first filter cartridge and the second filter cartridge from falling from the through holes of the mounting plate 5, namely, when the first filter cartridge is placed on the mounting plate 5 in the condenser 1 cylinder, the bottom surfaces of the annular convex edges 42 of the first filter cartridge are propped against the upper surface of the mounting plate 5, the other ends of the first filter cartridge penetrate through the through holes of the mounting plate 5 and are positioned in the cylinder, and when the first filter cartridge is cleaned, one end of the first filter cartridge can be held by a user to directly lift the first filter cartridge upwards so that the first filter cartridge is separated from the through holes of the mounting plate 5; when placing the second cartridge filter at the internal mounting disc 5 of gas-liquid separator 2 jar, the annular protruding bottom surface of edge 42 of second cartridge filter offsets with the upper surface of mounting disc 5, and the through-hole that the mounting disc 5 was passed to the other end of second cartridge filter is located the jar internal, when the clearance second cartridge filter, can handheld second cartridge filter one end directly upwards carry the second cartridge filter so that it breaks away from the through-hole of mounting disc 5, and first cartridge filter, second cartridge filter can be stably placed on mounting disc 5, and take out, place first cartridge filter, second cartridge filter and all convenient operation.

The mounting plate 5 in the barrel of the condenser 1 is fixedly arranged in the barrel, the mounting plate 5 in the tank of the gas-liquid separator 2 is fixedly arranged in the tank, and the concrete implementation mode is that:

the inner peripheral surface of the cylinder body and the tank body is provided with an annular boss 7 protruding from the inner peripheral surface, the annular boss 7 is arranged around the circumference of the inner peripheral surface of the cylinder body and the tank body, the middle part of the annular boss 7 is provided with a central hole, the central hole is communicated with the inner space of the cylinder body and the tank body, and the annular boss 7 can be welded on the inner peripheral surface of the cylinder body and the tank body.

The annular boss 7 of this example has upper surface and lower surface, the junction surface of connection upper surface and lower surface that set up relatively, the bottom surface of mounting disc 5 offsets with the upper surface of annular boss 7 at least partially and makes mounting disc 5 fix in barrel, jar internal, and mounting disc 5 takes on annular boss 7 promptly, and mounting disc 5 can not follow annular boss 7's centre bore whereabouts, for further fixed mounting disc 5, sets up corresponding mounting hole on mounting disc 5 and annular boss 7, can be with mounting disc 5 and annular boss 7 fixed connection through installing fastener (bolt nut subassembly) in the mounting hole, when taking off mounting disc 5, take off the fastener can. The connection surface of the annular boss 7 may be circular.

The system still includes the pull-up lid 6, the pull-up lid 6 includes lid 61, handle 62, lid 61 is cylindrical, lid 61 has one side open-ended accommodation space, lid 61 can cover and establish in first cartridge filter, the one end of second cartridge filter, handle 62 sets up the opposite side of keeping away from the opening at lid 61, the inner circumference diameter of lid 61 and the outer circumference diameter close-fitting of the one end of first cartridge filter, the second cartridge filter, establish the one end at first cartridge filter, the second cartridge filter is covered to the lid 6 when the pull-up, handheld handle 62 can take out first cartridge filter, the second cartridge filter from mounting disc 5 fast, convenient operation, when first cartridge filter, the second cartridge filter is cleared up to needs, convenient operation more swift, and efficient.

In this example, first cartridge filter is provided with a plurality of, and a plurality of first cartridge filter parallel arrangement, and the extending direction of first cartridge filter is parallel with the extending direction of barrel. The second cartridge filter is provided with a plurality of, and a plurality of second cartridge filter parallel arrangement, and the extending direction of second cartridge filter is parallel with the extending direction of jar body. The first filter cartridge and the second filter cartridge comprise a cartridge body 41, the cartridge body 41 can be hollow, a plurality of filtering holes 411 are formed in the cartridge body 41, and the cartridge body 41 can be formed by splicing two or more cartridge plates. The filtering holes 411 on the first and second filter cartridges are circular, polygonal (e.g., triangular, square, diamond), etc.

Further, jackets 10 are arranged on the outer circumferences of the cylinder body of the condenser 1 and the tank body of the gas-liquid separator 2, a space for containing cooling medium is formed between the jackets 10 and the outer circumferences of the cylinder body and the tank body, the cooling medium is chilled water, and the cooling medium is contained in the jackets 10 to cool the gas containing the oligomers and filter the gas through the first filter cartridge and the second filter cartridge inside.

In some embodiments, the mounting plate 5 includes a plate body 51, the plate body 51 may be in a column shape, such as a column or a square column, the upper surface of the plate body 51 is provided with a handle 52 convenient for hand holding, the handle 52 is in a U shape, and the hand holding handle 52 facilitates the mounting plate 5 to be taken out from the cylinder body or the tank body.

The valve 9 is arranged on the connecting pipeline 16, the valve 9 is used for adjusting the gas flow, namely the flow of the gas entering the impurity tank 3 can be adjusted, and the vacuum degree of the system is adjusted by controlling the nitrogen amount.

According to the polyester bottle chip production reaction vacuum system provided by the embodiment, nitrogen enters the impurity tank and flows in a mixed mode with the oligomer-containing gas pumped from the reaction kettle, the oligomer is filtered by the first filter cylinder in the condenser cylinder under the purging of the nitrogen, part of non-condensed gas which is not cooled and filtered by the condenser and the oligomer-containing gas enter the tank of the gas-liquid separator to be cooled and filtered for the second time, solid particle impurities are reduced from being sucked into the main pump of the vacuum pump, the phenomenon that the device loses vacuum and influences production caused by blockage of the pump is avoided, and the vacuum operation stability is improved; ensuring the stable operation of the device and eliminating the hidden trouble of safety production.

The above embodiments are provided to illustrate the technical concept and features of the present utility model and are intended to enable those skilled in the art to understand the content of the present utility model and implement the same, and are not intended to limit the scope of the present utility model. All equivalent changes or modifications made in accordance with the spirit of the present utility model should be construed to be included in the scope of the present utility model.

Claims (10)

1. A polyester bottle chip production reaction vacuum system, comprising:

the condenser comprises a cylinder body, one or more first filter cartridges are arranged in the cylinder body, the cylinder body is provided with an inlet, a first outlet and a second outlet, the inlet of the condenser is communicated with the reaction kettle, and a plurality of filtering holes are formed in the first filter cartridges;

the gas-liquid separator comprises a tank body, one or more second filter cartridges are arranged in the tank body, the tank body is communicated with a first outlet of a cylinder body of the condenser and a main pump of the vacuum pump, and a plurality of filtering holes are formed in the second filter cartridges;

the impurity tank is communicated with the second outlet of the condenser and is used for collecting impurities flowing out of the condenser; the gas adjusting assembly comprises a gas source, and the gas source is communicated with the impurity tank through a connecting pipeline and used for conveying gas to the impurity tank.

2. The reaction vacuum system for producing polyester bottle flakes according to claim 1, wherein the cylinder body of the condenser and the tank body of the gas-liquid separator are respectively provided with a mounting plate, and the mounting plate is provided with a plurality of through holes penetrating through the upper side and the lower side of the mounting plate; the periphery of one end of first cartridge filter, second cartridge filter all be provided with annular protruding edge, annular protruding edge around the circumference setting of first cartridge filter, second cartridge filter, the other end of first cartridge filter, second cartridge filter pass the through-hole of mounting disc, just the bottom surface of annular protruding edge with the upper surface of mounting disc offset.

3. The vacuum reaction system for producing polyester bottle flakes according to claim 2 wherein the inner peripheral surfaces of the cylinder and the can are provided with annular bosses protruding from the inner peripheral surfaces, the annular bosses are provided with upper surfaces and lower surfaces which are arranged oppositely, and connecting surfaces for connecting the upper surfaces and the lower surfaces, and the bottom surface of the mounting plate at least partially abuts against the upper surfaces of the annular bosses so that the mounting plate is fixed in the cylinder and the can.

4. The reactive vacuum system for producing polyester bottle flakes according to claim 3 further comprising a pulling cap comprising a cap body and a handle, wherein the cap body has an accommodating space with one side open, the cap body can be covered on one end of the first filter cylinder and the second filter cylinder, and the handle is arranged on the other side of the cap body far away from the opening.

5. The vacuum system for producing polyester bottle flakes according to claim 1 wherein a plurality of first filter cartridges are provided, the plurality of first filter cartridges are arranged in parallel, and the extending direction of the first filter cartridges is parallel to the extending direction of the cylinder.

6. The vacuum system for producing polyester bottle flakes according to claim 1 wherein a plurality of second filter cartridges are provided, the plurality of second filter cartridges are arranged in parallel, and the extending direction of the second filter cartridges is parallel to the extending direction of the can body.

7. The reaction vacuum system for producing polyester bottle flakes according to claim 1, wherein jackets are arranged on the outer circumferences of the cylinder body of the condenser and the tank body of the gas-liquid separator, and a space for containing cooling medium is formed between the jackets and the outer circumferences of the cylinder body and the tank body.

8. The vacuum system for producing polyester bottle flakes according to claim 2 wherein the mounting plate comprises a plate body, and a handle for facilitating holding is provided on the upper surface of the plate body.

9. The reactive vacuum system for producing polyester bottle flakes according to claim 1, wherein the connecting pipe is provided with a valve for adjusting the flow rate of the gas.

10. The reactive vacuum system for producing polyester bottle flakes according to claim 3 wherein the mounting plate and the annular boss are provided with corresponding mounting holes, and the mounting plate and the annular boss are fixedly connected by installing fasteners in the mounting holes.