CN212615644U

CN212615644U - Air blower system for melt-blown non-woven fabric production

Info

Publication number: CN212615644U
Application number: CN202021551074.1U
Authority: CN
Inventors: 项懂欣; 袁军
Original assignee: Xinlei Compressor Co Ltd
Current assignee: Xinlei Compressor Co Ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-02-26
Anticipated expiration: 2030-07-30

Abstract

The utility model belongs to the technical field of non-woven fabric production, and relates to an air blower system for melt-blown non-woven fabric production, which comprises an air blower body, an exhaust pipeline, an emptying branch pipe, an emptying valve and a PLC control module; the air outlet end of the blower body is connected with the air inlet end of the exhaust pipeline; the gas is discharged from the blower body to an exhaust pipeline and is led to the heating device; the emptying branch pipe is connected to the exhaust pipeline, the emptying valve is arranged on the emptying branch pipe, and the emptying valve controls the opening and closing amount of the valve through the PLC control module, so that part of gas in the exhaust pipeline is discharged from the emptying branch pipe through the emptying valve. The advantage of this patent is that realize effectual air current and switch, promote whole air-blower system's that melt-blown non-woven fabrics production was used smoothness nature and high efficiency nature.

Description

Air blower system for melt-blown non-woven fabric production

Technical Field

The utility model belongs to the technical field of the non-woven fabrics production, especially, relate to an air-blower system of melt-blown non-woven fabrics production usefulness.

Background

The single-stage high-speed centrifugal blower consists of the following five parts: high-speed motor, impeller, diffuser, spiral case, suspension bearing. The gas of the single-stage high-speed centrifugal blower enters the impeller from the axial direction, changes into the radial direction when flowing through the impeller and then enters the diffuser, the gas changes the flowing direction in the impeller and the diffuser to cause deceleration, and the deceleration converts the kinetic energy into pressure energy. Thereby achieving certain air quantity and air pressure.

Can produce very big noise and heat at blower system operation in-process, usually through set up a amortization chamber in the amortization case, the hot-blast amortization chamber that enters into of motor carries out the amortization this moment, drawback during the amortization in the amortization case is that current amortization chamber can only realize the function of amortization, and can't realize thermal-insulated effect, because the hot-blast and the air release of motor can make the heat pile up in the amortization case, lead to the high temperature in the amortization case, and then can lead to the heat in the amortization case to scatter and get into in the blower case, make the inside temperature of blower case rise, make blower motor operational environment temperature rise, influence the normal work of air-blower, finally influence the processing.

In the existing production process of melt-blown non-woven fabrics, the melt-blown non-woven fabrics production line is preheated by a starting-up stage required by an air blowing system, and air flow with low pressure and small air quantity is required to be realized by the air blowing system in a stopping and material clearing stage, air flow with high pressure and large air quantity is required by the air blowing system in a normal feeding production stage, and the problems that the starting requirement of an air suspension centrifugal blower per se is pressurized to start and the adjusting range is narrow are solved.

Disclosure of Invention

The utility model aims at solving the problem of poor effect of the blower blowing system for producing the existing melt-blown non-woven fabrics, and provides a blower system for producing melt-blown non-woven fabrics, which is convenient for realizing that when the system is in a normal feeding stage, an emptying valve is closed, so that the gas in an exhaust pipeline is discharged to a heating device under high pressure and large air volume; when being in the clear material stage of shutting down, through opening and adjusting atmospheric valve, make the row that realizes low pressure, little amount of wind through the interior gas of exhaust duct to heating device, realize effectual switching, promote the fluency and the high efficiency of the air-blower system of whole melt blown non-woven fabrics production usefulness.

For the purpose of the utility model, the following technical scheme is adopted to realize:

a blower system for melt-blown non-woven fabric production comprises a blower body, an exhaust pipeline, a vent branch pipe, a vent valve and a PLC control module; the air outlet end of the blower body is connected with the air inlet end of the exhaust pipeline; the gas is discharged from the blower body to an exhaust pipeline and is led to the heating device; the emptying branch pipe is connected to the exhaust pipeline, the emptying valve is arranged on the emptying branch pipe, and the emptying valve controls the opening and closing amount of the valve through the PLC control module, so that part of gas in the exhaust pipeline is discharged from the emptying branch pipe through the emptying valve.

Preferably, the system further comprises a blower silencer connected between the blower body and the exhaust duct; the blower body conveys gas into a blower silencer for silencing; a plurality of first silencing and heat insulating plates which are regularly arranged are arranged at the top in the blower silencer; a plurality of second silencing and heat insulating plates which are regularly arranged are arranged at the bottom in the silencer of the air blower; the surfaces of the first silencing and heat insulating plate, the second silencing and heat insulating plate and the silencing and heat insulating box body are all pasted with silencing and heat insulating layers.

Preferably, the plurality of first noise reduction and heat insulation plates and the plurality of second noise reduction and heat insulation plates are arranged in a hollow manner to form an S-shaped flow channel.

Preferably, the material of the sound-deadening and heat-insulating layer is glass fiber heat-insulating and sound-deadening cotton.

Preferably, the air inlet end part of the blower silencer is provided with a silencing air inlet; the silencing air inlet is horizontally arranged and is positioned in the middle of the air inlet end of the silencer of the air blower; a silencing air outlet is formed in the air outlet end of the air blower silencer; the amortization air outlet vertically sets up, and is located the top of air-blower muffler air-out end.

Preferably, a connecting flange, an expansion joint and a one-way valve are sequentially connected between the blower body and the blower silencer from the air inlet direction to the air outlet direction.

Preferably, the exhaust pipeline is further provided with an exhaust electric butterfly valve.

Preferably, the emptying silencer is connected with the air outlet end of the emptying branch pipe, so that part of air in the exhaust pipeline is discharged through the emptying branch pipe and the emptying silencer in sequence; the emptying silencer has the same structure as the silencer of the blower.

Adopt the air blower system of above-mentioned technical scheme's a melt-blown non-woven fabrics production usefulness, this system gives 4 ~ 20mA analog quantity through the PLC control module through the atmospheric valve and comes the aperture of accurate control electric valve plate, makes pressure, flow operation in the limit scope. So as to meet the requirements of the melt-blown production line on flow and pressure in different states. When the whole system is in a normal feeding stage, the gas in the exhaust pipeline is exhausted to the heating device under high pressure and large air volume; when the machine is stopped and the material is cleaned, the low-pressure and small-air-volume exhaust to the heating device is realized through the air in the exhaust pipeline, the effective air flow switching is realized, and the fluency and the high efficiency of the whole air blower system for producing the melt-blown non-woven fabric are improved.

Glass fiber heat preservation and noise reduction cotton is adhered to the surfaces of the first noise reduction and heat insulation plate, the second noise reduction and heat insulation plate and the noise reduction and heat insulation box body, so that the noise reduction and heat insulation effects can be further improved through the glass fiber heat preservation and noise reduction cotton; the S-shaped flow channel is formed by arranging the plurality of first silencing heat insulation plates and the plurality of second silencing heat insulation plates in an inserting way, so that the entered motor hot air and the entered emptying hot air collide with the silencing heat insulation layer and rebound repeatedly when passing through the S-shaped flow channel, the silencing effect is further improved, meanwhile, the heat is further prevented from being scattered to the outside of the device, the influence on the working environment of the motor in the blower body is reduced, and the motor can work normally and effectively;

to sum up, the advantage of this patent realizes effectual air current to switch, promotes whole air-blower system's that melt-blown non-woven fabrics production was used smoothness nature and high efficiency.

Drawings

Fig. 1 is a schematic structural diagram of an air blower system for melt-blown nonwoven fabric production according to the present invention.

Fig. 2 is a schematic structural view of the blower silencer of the present invention.

Detailed Description

The following describes in detail an embodiment of the present invention with reference to the drawings.

As shown in fig. 1, a blower system for melt-blown nonwoven fabric production comprises a blower body 1, a blower silencer 2, an exhaust pipeline 3, a vent branch pipe 4, a vent valve 5, a vent silencer 6 and a PLC control module; the air outlet end of the blower body 1 is connected with the air inlet end of the blower silencer 2, and the blower body 1 conveys air into the blower silencer 2 for silencing; the exhaust pipeline 3 is connected with the air outlet end of the blower silencer 2, and the air is discharged into the exhaust pipeline 3 from the blower silencer 2 and led to the heating device; the emptying branch pipe 4 is connected on the exhaust pipeline 3, the emptying valve 5 is arranged on the emptying branch pipe 4, the air inlet end of the emptying silencer 6 is connected with the air outlet end of the emptying branch pipe 4, partial gas in the exhaust pipeline 3 is discharged through the emptying branch pipe 4 and the emptying silencer 6 in sequence, and the emptying silencer 6 is identical to the blower silencer 2 in structure. A connecting flange 7, an expansion joint 8 and a one-way valve 9 are sequentially connected between the blower body 1 and the blower silencer 2, so that the connection is better facilitated and the air flow is prevented from returning to the blower body 1; the exhaust pipeline 3 is also provided with an exhaust electric butterfly valve 31, and the size of the airflow in the exhaust pipeline 3 can be better realized through the exhaust electric butterfly valve 31.

As shown in fig. 1 and 2, the air inlet end of the blower muffler 2 is provided with a muffling air inlet 21; the silencing air inlet 21 is positioned at the lower part of the feeding side plate 101 of the blower silencer 2, and the silencing air inlet 21 is transversely arranged. A silencing air outlet 22 is arranged at the discharging end part of the blower silencer 2, the silencing air outlet 22 is positioned above the feeding end side of the rear plate of the blower silencer 2, the silencing air outlet 22 is arranged in the front-back direction, and a plurality of first silencing heat-insulating plates 201 which are regularly arranged are arranged at the top in the blower silencer 2; a plurality of second silencing and heat insulating plates 202 which are regularly arranged are arranged at the bottom in the blower silencer 2; the surfaces of the first noise-reduction heat-insulation board 201, the second noise-reduction heat-insulation board 202 and the noise-reduction heat-insulation box body 2 are all stuck with noise-reduction heat-insulation layers; the material of amortization insulating layer is glass fiber heat preservation amortization cotton, through glass fiber heat preservation amortization cotton not only has the effect of amortization but also has thermal-insulated effect. A plurality of first noise-reduction heat-insulation boards 201 and a plurality of second noise-reduction heat-insulation boards 202 are arranged in an inserting manner to form an S-shaped flow passage 203; make the motor that gets into bump and bounce-back many times with the amortization insulating layer when S type runner, further promoted noise cancelling effect, also further guaranteed simultaneously and prevented that the heat from scattering to the device outside, reduce the influence to this internal motor operational environment of air-blower, promote air-blower body work efficiency.

Melt and spout the non-woven fabrics production line operation in-process, the stop is not allowed, the pressure sudden change can not take place, so blow-down valve 5 on the blow-down branch pipe 4 is the aperture of giving 4 ~ 20mA analog quantity through PLC control module and coming accurate control electric valve plate, makes pressure, flow move at the quota within range to satisfy melt and spout the production line under different states, to the demand of flow and pressure.

A working method of a blower system for melt-blown non-woven fabric production sequentially comprises the following steps: when the material feeding stage is normal, the blower body 1 is started, gas with certain pressure and flow velocity sequentially passes through the connecting flange 7, the expansion joint 8 and the one-way valve 9 to enter the blower silencer 2, the gas is exhausted into the exhaust pipeline 3 after being silenced and insulated through the S-shaped flow passage 203, the emptying valve 5 is closed at the moment, the exhaust electric butterfly valve 31 is opened, and the gas in the exhaust pipeline 3 is exhausted to the heating device under high pressure and large air volume; when the machine is in a shutdown material cleaning stage, the exhaust electric butterfly valve 31 is adjusted by opening and adjusting the vent valve 5, so that redundant gas is discharged through the vent branch pipe 4, the vent valve 5 and the vent silencer 6 in sequence, and the gas in the exhaust pipeline 3 is discharged to the heating device with low pressure and small air volume. All the actions are intelligently controlled through the PLC control module, and manual operation is not needed.

In conclusion, when the whole system is in the normal feeding stage, the gas in the exhaust pipeline is exhausted to the heating device under high pressure and large air volume; when the machine is stopped and the material is cleaned, the low-pressure and small-air-volume exhaust to the heating device is realized through the air in the exhaust pipeline, the effective air flow switching is realized, and the fluency and the high efficiency of the whole air blower system for producing the melt-blown non-woven fabric are improved.

Claims

1. The blower system for melt-blown non-woven fabric production is characterized by comprising a blower body (1), an exhaust pipeline (3), a vent branch pipe (4), a vent valve (5) and a PLC (programmable logic controller) control module; the air outlet end of the blower body (1) is connected with the air inlet end of the exhaust pipeline (3); the gas is discharged from the blower body (1) to an exhaust pipeline (3) and led to a heating device; the emptying branch pipe (4) is connected to the exhaust pipeline (3), the emptying valve (5) is arranged on the emptying branch pipe (4), and the emptying valve (5) controls the opening and closing amount of the valve through the PLC control module, so that part of gas in the exhaust pipeline (3) is discharged from the emptying branch pipe (4) through the emptying valve (5).

2. The blower system for melt-blown nonwoven fabric production according to claim 1, further comprising a blower muffler (2), wherein the blower muffler (2) is connected between the blower body (1) and the exhaust duct (3); the blower body (1) conveys gas into a blower silencer (2) for silencing; a plurality of first silencing and heat insulating plates (201) which are regularly arranged are arranged at the top in the blower silencer (2); a plurality of second silencing and heat insulating plates (202) which are regularly arranged are arranged at the bottom in the blower silencer (2); the surfaces of the first noise-reduction heat-insulation plate (201), the second noise-reduction heat-insulation plate (202) and the noise-reduction heat-insulation box body are all pasted with noise-reduction heat-insulation layers.

3. The blower system for melt blown nonwoven fabric production according to claim 2, wherein a plurality of first noise-reduction and heat-insulation panels (201) and a plurality of second noise-reduction and heat-insulation panels (202) are arranged in a staggered manner to form S-shaped flow paths (203).

4. The blower system for melt-blown nonwoven fabric production according to claim 2, wherein the material of the sound-deadening and heat-insulating layer is glass fiber heat-insulating and sound-deadening cotton.

5. The blower system for melt-blown nonwoven fabric production according to claim 2, wherein the air intake end of the blower silencer (2) is provided with a silencing air inlet (21); the silencing air inlet (21) is horizontally arranged and is positioned in the middle of the air inlet end of the air blower silencer (2); a silencing air outlet (22) is arranged at the air outlet end part of the blower silencer (2); the silencing air outlet (22) is longitudinally arranged and is positioned at the top of the air outlet end of the air blower silencer (2).

6. The blower system for melt-blown nonwoven fabric production according to claim 1, wherein a connecting flange (7), an expansion joint (8) and a one-way valve (9) are further connected between the blower body (1) and the blower silencer (2) in sequence from the air inlet direction to the air outlet direction.

7. The blower system for melt-blown nonwoven fabric production according to claim 1, wherein the exhaust duct (3) is further provided with an exhaust electric butterfly valve (31).

8. The blower system for melt-blown non-woven fabric production according to claim 2, wherein the vent silencer (6) is connected with the air outlet end of the vent branch pipe (4), so that part of the air in the exhaust pipeline (3) is discharged through the vent branch pipe (4) and the vent silencer (6) in sequence; the emptying silencer (6) has the same structure as the blower silencer (2).