CN210338419U - Device for reducing nitrogen usage amount in polypropylene packaging process - Google Patents
Device for reducing nitrogen usage amount in polypropylene packaging process Download PDFInfo
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- CN210338419U CN210338419U CN201921274658.6U CN201921274658U CN210338419U CN 210338419 U CN210338419 U CN 210338419U CN 201921274658 U CN201921274658 U CN 201921274658U CN 210338419 U CN210338419 U CN 210338419U
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- nitrogen gas
- buffer tank
- packaging process
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- polypropylene packaging
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Abstract
The utility model relates to an equipment among the little body liquid phase body method polypropylene packaging process of intermittent type formula specifically is a device that reduces nitrogen gas use amount among polypropylene packaging process, including the nitrogen gas source, the nitrogen gas source passes through the pipe connection buffer tank, installs self-operated formula governing valve on the pipeline between nitrogen gas source and the buffer tank, and flash distillation cauldron top is connected to the buffer tank, and packagine machine is connected to the flash distillation cauldron. Compared with the prior art, utilize the utility model discloses the structure is packed the operation, and nitrogen gas is according to the demand replenishment in the operation process, has reduced the nitrogen gas use amount, has saved manufacturing cost.
Description
Technical Field
The utility model relates to an equipment among the little body liquid phase body method polypropylene packaging process of intermittent type formula specifically is a device that reduces nitrogen gas use amount among the polypropylene packaging process.
Background
The intermittent small-body liquid-phase bulk polypropylene needs nitrogen protection in the packaging process of a flash evaporation kettle, so that firstly, air is prevented from entering, and flash explosion accidents are easy to happen; secondly, certain pressure is increased, and the packaging speed is improved.
In the prior art, a nitrogen valve and an emptying valve of a flash evaporation kettle are opened, then the packaging process is carried out, nitrogen enters the flash evaporation kettle through the nitrogen valve and is immediately discharged from the emptying pipeline, and a large amount of nitrogen is wasted in the operation process.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome prior art's defect, provide a device that reduces nitrogen gas use amount in the polypropylene packaging process, reduce the nitrogen gas use amount, save manufacturing cost.
In order to solve the technical problem, the utility model provides a following technical scheme:
the utility model provides a device of reduction nitrogen gas use amount in polypropylene packaging process, includes the nitrogen gas source, and the nitrogen gas source passes through the pipe connection buffer tank, installs self-operated governing valve on the pipeline between nitrogen gas source and the buffer tank, and flash distillation cauldron top is connected to the buffer tank, and packagine machine is connected to the flash distillation cauldron. The pressure of the buffer tank is the same as that of the flash evaporation kettle without packaging operation. The flow of the self-operated regulating valve is customized according to actual requirements, and the pressure behind the valve is controlled to be the same as the pressure of the buffer tank.
The self-operated regulating valve is a self-operated pressure regulating valve, the self-operated pressure control valve drives the valve to automatically work by taking the pressure of the medium flowing through the valve as energy, and a feedback signal of the self-operated pressure control valve is the outlet pressure of the valve and is introduced into the actuating mechanism through a signal pipe.
And an emptying valve is arranged at the top of the flash evaporation kettle.
During specific operation, the pressure of the buffer tank is always constant at about 2000pa, during packaging, the pressure of the flash evaporation kettle is lower than 2000pa, nitrogen in the buffer tank can be automatically supplemented, when the buffer tank is not packaged, the pressure reaches 2000pa, the self-operated regulating valve is automatically closed, and the nitrogen is not supplemented any more. The whole flash evaporation kettle is always in a closed state when being emptied.
The utility model discloses the beneficial effect who reaches is:
compared with the prior art, utilize the utility model discloses the structure is packed the operation, and nitrogen gas is according to the demand replenishment in the operation process, has reduced the nitrogen gas use amount, has saved manufacturing cost.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
in the figure: 1. a nitrogen source; 2. a self-operated regulating valve; 3. a buffer tank; 4. a flash evaporation kettle; 5. a packaging machine; 6. and (4) an emptying valve.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b):
as shown in figure 1, the device for reducing the use amount of nitrogen in the polypropylene packaging process comprises a nitrogen source 1, wherein the nitrogen source 1 is a nitrogen storage tank. The nitrogen source 1 is connected with a buffer tank 3 through a pipeline, and the buffer tank 3 is a nitrogen pressure buffer tank. A self-operated regulating valve 2 is arranged on a pipeline between the nitrogen source 1 and the buffer tank 3, and the self-operated regulating valve 2 is a self-operated pressure regulating valve. The buffer tank 3 is connected with the top of the flash evaporation kettle 4, and the flash evaporation kettle 4 is connected with the packaging machine 5. The pressure of the buffer tank 3 is the same as that of the flash tank 4 when the packaging operation is not performed. The flow of the self-operated regulating valve 2 is customized according to actual requirements, and the pressure after the valve is controlled to be the same as the pressure of the buffer tank 3.
And an emptying valve 6 is arranged at the top of the flash evaporation kettle 4.
The utility model discloses an operation process does:
during the concrete operation, 3 constant pressure of buffer tank are about 2000pa all the time, and the valve back pressure control of self-operated regulator valve 2 is the same with 3 pressure of buffer tank, and during the packing, flash distillation cauldron 4 pressure is less than 2000pa, and the nitrogen gas in buffer tank 3 will be supplemented voluntarily, and when not packing, pressure reaches 2000pa, and self-operated regulator valve 2 self-closing, nitrogen gas no longer supplements. The whole flash evaporation kettle 4 is always in a closed state when being emptied.
Claims (3)
1. The utility model provides a device of reduction nitrogen gas use amount in polypropylene packaging process, its characterized in that, including nitrogen gas source (1), nitrogen gas source (1) passes through pipe connection buffer tank (3), installs self-operated formula governing valve (2) on the pipeline between nitrogen gas source (1) and buffer tank (3), and flash distillation cauldron (4) top is connected in buffer tank (3), and packagine machine (5) are connected in flash distillation cauldron (4).
2. The device for reducing the amount of nitrogen used in the polypropylene packaging process according to claim 1, wherein the self-operated regulating valve (2) is a self-operated pressure regulating valve.
3. The device for reducing the use amount of nitrogen in the polypropylene packaging process according to claim 1, wherein the top of the flash evaporation kettle (4) is provided with a vent valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274658.6U CN210338419U (en) | 2019-08-07 | 2019-08-07 | Device for reducing nitrogen usage amount in polypropylene packaging process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921274658.6U CN210338419U (en) | 2019-08-07 | 2019-08-07 | Device for reducing nitrogen usage amount in polypropylene packaging process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210338419U true CN210338419U (en) | 2020-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921274658.6U Active CN210338419U (en) | 2019-08-07 | 2019-08-07 | Device for reducing nitrogen usage amount in polypropylene packaging process |
Country Status (1)
| Country | Link |
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| CN (1) | CN210338419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933912A (en) * | 2022-06-24 | 2022-08-23 | 山东天景工程设计有限公司 | Device for reducing bias current in heat exchanger utilizing waste heat of coke oven crude gas |
-
2019
- 2019-08-07 CN CN201921274658.6U patent/CN210338419U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114933912A (en) * | 2022-06-24 | 2022-08-23 | 山东天景工程设计有限公司 | Device for reducing bias current in heat exchanger utilizing waste heat of coke oven crude gas |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Jiang Xikui Inventor after: Cao Na Inventor after: Liu Yichen Inventor after: Zhang Wenxue Inventor after: Zou Xingguo Inventor after: Chen Xiaolei Inventor after: Ai Yongzhen Inventor after: Sun Lanxia Inventor before: Jiang Xikui Inventor before: Cao Na Inventor before: Liu Yichen Inventor before: Zhang Wenxue Inventor before: Zou Xingguo Inventor before: Chen Xiaolei Inventor before: Ai Yongzhen Inventor before: Sun Lanxia |