CN212603321U

CN212603321U - Oil pump sealing detection device of heating unit of PET melt extruder

Info

Publication number: CN212603321U
Application number: CN202021027396.6U
Authority: CN
Inventors: 黄东刚; 徐银; 沈濂; 林继东; 栾伯春; 沈长辰
Original assignee: Changzhou Zhongheng New Material Co Ltd
Current assignee: Changzhou Zhongheng New Material Co Ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-02-26
Anticipated expiration: 2030-06-08

Abstract

The utility model discloses an oil pump sealing detection device of a heating unit of a PET melt extruder, which comprises an air compressor; the input end of the connecting component is connected with the air compressor; one end of the first pipeline is connected with the output end of the connecting component; one end of the valve is connected with the other end of the first pipeline; the second pipeline is provided with a pressure gauge, and one end of the second pipeline is connected with the other end of the valve; and the connecting part is connected with the other end of the second pipeline. The utility model discloses can detect the oil pump portably.

Description

Oil pump sealing detection device of heating unit of PET melt extruder

Technical Field

The utility model relates to a PET fuse-element extruder heating unit's oil pump seal detection device.

Background

The PET melt extruder is a machine for extruding PET granular materials through a screw after heating, and the PET granular materials are heated inside the PET melt extruder to form a melt, so that the PET melt extruder works in a high-temperature environment. An oil pump is used in the thermal unit of the PET melt extruder. The oil pump is easily damaged or breaks down in a high-temperature environment, and therefore, the oil pump needs to be periodically overhauled.

The oil pump of PET melt extruder heating unit is overhauld the back, and sealing washer and bearing need be changed to the oil pump usually, nevertheless after changing sealing washer and bearing, whether oil leak when can not guaranteeing to use, often has installed the oil pump, has added the oil and has risen the temperature just to discover the oil leak, just needs the oil drain again, installs the adjustment again, and the frequency of this kind of doing over again is still than higher. In this case, it is necessary to check the sealing performance of the oil pump after replacing the oil pump seal.

SUMMERY OF THE UTILITY MODEL

The utility model provides a PET fuse-element extruder heating unit's oil pump seal detection device, the utility model discloses can detect the oil pump portably.

Oil pump seal detection device of PET melt extruder heating unit includes:

an air compressor;

the input end of the connecting component is connected with the air compressor;

one end of the first pipeline is connected with the output end of the connecting component;

one end of the valve is connected with the other end of the first pipeline;

the second pipeline is provided with a pressure gauge, and one end of the second pipeline is connected with the other end of the valve;

and the connecting part is connected with the other end of the second pipeline.

Utilize gaseous pressurize leak hunting principle for the inspection oil pump leakproofness will maintain the oil pump import of completion sealed with blind plate and dense strip, the export is connected with adapting unit, is connected coupling assembling and air compressor, inserts compressed air, lets in the pressurize two days behind the compressed air, if pressure does not change, then oil pump seal does not have the leakage, judges that oil pump maintenance back is can not the oil leak. Since the oil pump seal is detected by the detection device, the reworking phenomenon after the oil pump seal is replaced does not occur.

Drawings

Fig. 1 is a schematic diagram of an oil pump seal detection device of a PET melt extruder heating unit of the present invention;

FIG. 2 is a cross-sectional view of the connection assembly;

the air compressor comprises an air compressor 1, a first pipeline 2, a valve 3, a pressure gauge 4, a second pipeline 5, a connecting part 6, an oil pump A, a connecting assembly B, a first body 10, a raised head 11, a first stepped hole 12, a first annular inserting part 13, a second body 20, a second stepped hole 21, a second annular inserting part 22, a sealing part 30, a locking part 40 and a second sealing part 50.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

PET fuse-element extruder heating unit's oil pump seals detection device, including air compressor 1, coupling assembling B, first pipeline 2, valve 3, install manometer 4's second pipeline 5, connect oil pump A's adapting unit 6, coupling assembling B's input and air compressor 1 are connected, first pipeline 2's one end is connected with coupling assembling B's output, valve 3's one end is connected with first pipeline 2's the other end, second pipeline 5's one end is connected with valve 3's the other end, adapting unit 6 is connected with second pipeline 5's the other end, adapting unit 6 is the flange.

Utilize gaseous pressurize leak hunting principle for the inspection oil pump leakproofness, the oil pump import that will maintain the completion is sealed with blind plate and dense strip, the export is connected with adapting unit 6, be connected coupling assembling B and air compressor 1, let in compressed air, when demonstration on manometer 4 reaches the demand, turn-off second pipeline 2 through valve 3, let in pressurize two days behind the compressed air, if pressure does not change, then oil pump seal department does not have the leakage, judge that oil pump maintenance is back can not the oil leak. Since the oil pump seal is detected by the detection device, the reworking phenomenon after the oil pump seal is replaced does not occur.

The connecting assembly B comprises a first pipe joint, a second pipe joint and a sealing part 30, the first pipe joint comprises a first body 10 and a raised head 11, a first stepped hole 12 penetrating through the first body 10 and the raised head 11 is formed in the first pipe joint, the second pipe joint comprises a second body 20, a second stepped hole 21 penetrating through the second body 20 is formed in the second body 20, the sealing part 30 is located in the second stepped hole, after the sealing part 30 is pressed on stepped surfaces of the raised head 11 and the second stepped hole 21, the first pipe joint and the second pipe joint are locked through a locking part 40, and the locking part 40 preferably adopts a screw.

First step hole 12 comprises minor diameter hole and major diameter hole, and wherein the major diameter hole is the screw hole, can be connected with air compressor 1 fast through the screw hole, because air compressor 1 can use other places, and need the pressurize for two days after letting in compressed air when detecting, consequently, air compressor 1 demolishs the utilization ratio reduction that can make air compressor 1 again after the pressurize is relieved. After being connected with air compressor 1 through coupling assembling B, after letting in air and reaching corresponding pressure, close valve 3, can dismantle air compressor 1, use air compressor 1 to other places that need use. Therefore, the connection assembly B can provide an advantage of being quickly connected and disconnected with the air compressor 1.

The second stepped hole 21 is composed of two large-diameter holes and a small-diameter hole, the small-diameter hole is located between the two large-diameter holes, one of the large-diameter holes is used for installing the sealing member 30 and the nose 11, the other large-diameter hole is used for installing the first pipe 2, and after the first pipe 2 is inserted into the large-diameter hole, the first pipe 2 and the second body 20 are welded and fixed.

The boss 11 is provided with a first annular insertion part 13, the second stepped hole 21 is provided with a second annular insertion part 22 on a stepped surface thereof, the first annular insertion part 13 penetrates into the sealing part 30 from one end of the sealing part 30 while the sealing part 30 is pressed between the boss 11 and the second stepped hole 21, and the second annular insertion part 22 penetrates into the sealing part 30 from the other end of the sealing part 30.

The connection assembly B with the structure has the advantages that the sealing component 30, the first annular insertion component 13 and the second annular insertion component 22 are combined to play an absolute sealing role, the connection assembly B can be not detached after being connected with the first pipeline 2, when the connection assembly B is not used at ordinary times, the connection assembly B, the first pipeline 2, the valve 3, the second pipeline 5 provided with the pressure gauge 4 and the connection component 6 are sequentially connected, when the connection assembly B is required to be used, the connection assembly B is connected with the air compressor 1, and the connection component 6 is connected with the oil pump. The combination of the sealing member 30 with the first annular insertion member 13 and the second annular insertion member 22 is not broken in the case of long-term non-use.

The first and second

annular insertion members

13 and 22 have a triangular cross-section, and the first and second

annular insertion members

13 and 22 of this structure more easily penetrate the sealing member 30.

The connection assembly B further includes a second seal member 50, the second seal member 50 being located between the first body 10 and the second body 20. The joint surface of the first body 10 and the second body 20 is sealed by the second sealing member 50.

Claims

An oil pump seal detection device of a heating unit of a PET melt extruder is characterized by comprising:

an air compressor (1);

the input end of the connecting component (B) is connected with the air compressor (1);

one end of the first pipeline (2) is connected with the output end of the connecting component (B);

one end of the valve (3) is connected with the other end of the first pipeline (2);

a second pipeline (5) provided with a pressure gauge (4), wherein one end of the second pipeline (5) is connected with the other end of the valve (3);

and the connecting part (6) is connected with the oil pump (A), and the connecting part (6) is connected with the other end of the second pipeline (5).
2. The oil pump seal detection apparatus of a PET melt extruder heating unit according to claim 1, wherein the connection assembly (B) comprises:

the first pipe joint comprises a first body (10) and a raised head (11), and a first stepped hole (12) penetrating through the first body (10) and the raised head (11) is formed in the first pipe joint;

the second pipe joint comprises a second body (20), and a second stepped hole (21) penetrating through the second body (20) is formed in the second body (20);

and the sealing part (30), the sealing part (30) is positioned in the second stepped hole, after the sealing part (30) is pressed on the stepped surfaces of the raised head (11) and the second stepped hole (21), the first pipe joint and the second pipe joint are locked by the locking part (40).
3. The oil pump seal detection apparatus of a PET melt extruder heating unit according to claim 2, wherein a first annular insertion part (13) is provided on the boss (11), a second annular insertion part (22) is provided on a stepped surface of the second stepped hole (21), the first annular insertion part (13) penetrates into the inside of the sealing part (30) from one end of the sealing part (30) and the second annular insertion part (22) penetrates into the inside of the sealing part (30) from the other end of the sealing part (30) when the sealing part (30) is pressed between the boss (11) and the second stepped hole (21).
4. The oil pump seal detection device of a PET melt extruder heating unit according to claim 2, wherein the first annular insert member (13) and the second annular insert member (22) are triangular in cross section.
5. The oil pump seal detection device of a PET melt extruder heating unit of claim 2, wherein the connection assembly further comprises a second sealing member (50), the second sealing member (50) being located between the first body (10) and the second body (20).