CN217441782U - Exhaust steam recycling and white elimination system in tire industry - Google Patents
Exhaust steam recycling and white elimination system in tire industry Download PDFInfo
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- CN217441782U CN217441782U CN202220518781.3U CN202220518781U CN217441782U CN 217441782 U CN217441782 U CN 217441782U CN 202220518781 U CN202220518781 U CN 202220518781U CN 217441782 U CN217441782 U CN 217441782U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
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Abstract
The utility model discloses a waste steam recovery and white elimination system in tyre industry, which comprises a flash steam recoverer, a recovery water tank, an ejector and a heating return water main pipeline; the flash steam recoverer is connected with a flash steam source and is used for collecting flash steam; the recovery water tank is connected with a bottom water outlet of the flash steam recoverer; the inlet and the outlet of the injection flow channel of the injector are respectively connected with the upstream and the downstream of the heating return water main pipeline, and a first valve is arranged between the upstream and the downstream of the heating return water main pipeline; an injected flow inlet of the injector is connected with a top outlet of the flash steam recoverer.
Description
Technical Field
The utility model belongs to the technical field of exhaust steam waste heat recovery, concretely relates to tire industry exhaust steam is retrieved and white system disappears.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
The flash steam of the tire production system comprises steam used for tire vulcanization and rubber drying of a rubber drying room and condensed water and backwater generated by high-temperature water, and exhaust steam generated after recovery. When the exhaust steam is directly discharged to the environment, white smoke is easily generated, and the environment of a factory is influenced; because the temperature of the flash steam is higher, water resource waste and heat loss can be caused when the flash steam is directly discharged, and the requirements of energy conservation and emission reduction are not met. But no effective recovery mode for flash steam exists at present.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects existing in the prior art, the utility model aims at providing a tire industry exhaust steam recovery and white elimination system.
In order to achieve the above purpose, the present invention is realized by the following technical solution:
a waste steam recovery and white elimination system in the tire industry comprises a flash steam recoverer, a recovery water tank, an ejector and a heating return water main pipeline;
the flash steam recoverer is connected with a flash steam source and is used for collecting flash steam;
the recovery water tank is connected with a bottom water outlet of the flash steam recoverer;
the inlet and the outlet of the injection flow channel of the injector are respectively connected with the upstream and the downstream of the heating return water main pipeline, and a first valve is arranged between the upstream and the downstream of the heating return water main pipeline;
an injected flow inlet of the injector is connected with a top outlet of the flash steam recoverer.
Above-mentioned the utility model has the advantages as follows:
the flash steam recoverer is used for collecting flash steam, condensing and recovering water drops in the flash steam, and remaining dead steam. The water obtained by condensation is collected in a recovery water tank.
And the inlet and the outlet of the ejector flow channel of the ejector are respectively connected with the upstream and the downstream of the heating return water main pipeline, and a valve is arranged between the upstream and the downstream of the heating return water main pipeline. The opening and closing degree of the heating return water main pipeline is controlled by the valve, the flow of water of the heating return water main pipeline is reduced, heating water on the upper stream is pressurized, part of the heating water flows through the ejector at a high flow speed, exhaust steam separated from the flash steam recoverer is recovered, low-pressure mixed hot water after ejection returns to a heating water supply pipeline, and the recovery of moisture and heat in the exhaust steam is realized.
Drawings
The accompanying drawings, which form a part of the specification, 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 without unduly limiting the scope of the invention.
Fig. 1 is a diagram of a tire industry exhaust steam recovery and white elimination system according to one or more embodiments of the present invention.
In the figure: the mutual spacing or size is exaggerated to show the position of each part, and the schematic diagram is only used for illustration;
wherein, 1-a recovery water tank; 2-flash steam recoverer; 3-a safety valve; 4-a fourth valve; 5-a third valve; 6-an ejector; 7-a check valve; 8-a first valve; 9-a heating return water main pipeline; 10-second valve.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
A waste steam recovery and white elimination system in the tire industry comprises a flash steam recoverer, a recovery water tank, an ejector and a heating return water main pipeline;
the flash steam recoverer is connected with a flash steam source and is used for collecting flash steam;
the recovery water tank is connected with a water outlet at the bottom of the flash steam recoverer;
the inlet and the outlet of the injection flow channel of the injector are respectively connected with the upstream and the downstream of the heating return water main pipeline, and a first valve is arranged between the upstream and the downstream of the heating return water main pipeline;
an injected flow inlet of the injector is connected with a top outlet of the flash steam recoverer.
In some embodiments, a check valve is arranged between the ejector outlet and the heating return water main pipeline. So as to prevent the heating water in the heating return water main pipeline from flowing back to the ejector.
In some embodiments, a second valve is arranged on a connecting pipeline between the ejector inlet and the heating return water main pipeline. Used for adjusting the flow rate of the heating water or closing the ejector.
In some embodiments, a third valve is arranged on the connecting pipeline between the ejector and the flash steam recoverer. Used for controlling the opening and closing of the dead steam channel.
Preferably, a branch is arranged on a connecting pipeline between the ejector and the flash steam recoverer, a fourth valve is arranged on the branch, and the tail end of the branch is communicated with the environment.
When the injection passage fails, the third valve on the injection passage needs to be closed, the fourth valve on the branch is opened, and the exhaust steam is discharged to the surrounding environment.
Further preferably, the fourth valve is positioned above the flash steam recoverer, and the distance between the fourth valve and the flash steam recoverer is 0.3-1m, preferably 0.5-1 m.
Further preferably, a bypass pipeline is led out from the branch pipeline, a safety valve is arranged on the bypass pipeline, and the bypass pipeline is arranged at the upstream of the valve.
The bypass pipeline is arranged, the safety valve is arranged on the bypass pipeline, and when the system breaks down, exhaust steam is discharged outside through the safety valve to avoid potential safety hazards.
In some embodiments, one common form of structure of the flash steam recoverer is: the surface condensation type is that cooling water is utilized to carry out cooling heat exchange, steam is condensed into water, and the uncondensable water is reduced and discharged into the atmosphere; the other is as follows: the steam-water separator adopts the centrifugal separation principle to realize steam-water separation, and also can not be condensed and can be reduced and discharged into the atmosphere.
In some embodiments, the flash steam recoverer is fixedly mounted adjacent to the exhaust duct.
To reduce the conveying path length of flash steam.
The invention will be further explained with reference to the drawings and the specific embodiments.
A waste steam recovery and white elimination system in the tire industry comprises a flash steam recoverer, a recovery water tank, an ejector and a heating return water main pipeline;
the flash steam recoverer is connected with a flash steam source and is used for collecting flash steam;
the recovery water tank is connected with a bottom water outlet of the flash steam recoverer;
the inlet and the outlet of the injection flow channel of the injector are respectively connected with the upstream and the downstream of the heating return water main pipeline, and a first valve is arranged between the upstream and the downstream of the heating return water main pipeline;
an injected flow inlet of the injector is connected with a top outlet of the flash steam recoverer.
A check valve is arranged between the ejector outlet and the heating return water main pipeline; a second valve is arranged on a connecting pipeline between the inlet of the ejector and the heating return water main pipeline; a third valve is arranged on a connecting pipeline between the ejector and the flash steam recoverer; a branch is arranged on a connecting pipeline between the ejector and the flash steam recoverer, a fourth valve is arranged on the branch, and the tail end of the branch is communicated with the environment.
The fourth valve is positioned above the flash steam recoverer, and the distance between the fourth valve and the flash steam recoverer is 0.3-1m, and preferably 0.5-1 m.
A bypass pipeline is led out from the branch, a safety valve is arranged on the bypass pipeline, and the bypass pipeline is arranged at the upstream of the valve. The bypass pipeline is arranged, the safety valve is arranged on the bypass pipeline, and when the system breaks down, exhaust steam is discharged outside through the safety valve to avoid potential safety hazards.
The flash steam recoverer is of a steam-water separator structure, steam-water separation is realized by centrifugal separation, and the flash steam recoverer is fixedly installed close to the steam exhaust pipeline.
The ejector used in the embodiment is a water vapor ejector, and is also called a water vapor injection type heat pump. The ejector has the advantages that: the heat recovery efficiency is high; the structure is simple, no rotating part is arranged, electric energy and mechanical energy are not consumed, the service life is long, and the operation is reliable; the steam outlet can be designed to be automatically controlled and adjusted, and the steam outlet pressure parameter is stable; the operation is simple, the maintenance is basically avoided, and the operation cost is extremely low; the installation is convenient, the restriction of the conditions on site is avoided, the flange connection is adopted, and the disassembly, assembly and maintenance are convenient.
Technical parameters
Exhaust steam discharge amount: average 0.5t/h and maximum 1 t/h;
the exhaust temperature is about 100 ℃;
power water (heating return water): the flow rate is 250t/h, the pressure of an instrument is 0.25MPa, and the temperature is 80 ℃;
diameter of exhaust steam pipe: DN 300.
The installation position of the flash steam recovery device is selected on a platform of the power station close to the steam exhaust pipeline, and the ejection distance of the dead steam is shortened as much as possible, so that the resistance is reduced, and the working efficiency of the equipment is increased. The flash steam of the whole plant is collected and connected to a flash steam recoverer through related pipelines and is processed by the flash steam recoverer in a centralized way. Most of flash steam is condensed into water flow by the flash evaporator recoverer and flows to a recovery water tank, and waste steam is treated by a newly added water vapor ejector. The driving medium adopts heating water, the sucked steam is dead steam of original exhaust air, and the injected low-pressure mixed hot water returns to a heating water supply pipeline.
The original water supply system is not moved, and when the steam exhaust recovery system fails or other reasons cause steam to influence heating, the original system can be switched. And the safe and stable operation of the system is ensured.
Method of implementation
As shown in fig. 1, an electric valve-a fourth valve 4 is installed on the steam exhaust pipeline within one meter above the flash steam recoverer 2. A safety valve 3 is arranged at the upper part between the fourth valve 4 and the flash steam recoverer 2, and a steam exhaust pipeline of the safety valve 3 can be connected to an atmospheric exhaust pipeline of the recovery water tank 1. And a dead steam leading-out pipeline is connected below the joint of the safety valve 3 and is connected to a low-pressure steam reserved joint flange of the ejector 6. The heating water supply pipeline (also called power water pipeline) connected from the heating water supply main pipe is connected to the power water reserved interface flange of the ejector.
Control aspect
The fourth valve 4 and the third valve 5 are in linkage control and are in mutual reverse action control, namely when the fourth valve 4 is opened, the third valve 5 is closed, and when the third valve 5 is opened, the fourth valve 4 is closed, so that the system safety is ensured. And a check valve 7 is arranged on a pipeline at the low-pressure mixed steam outlet section after injection, so that the steam is prevented from being poured back.
The control logic sequence is as follows:
when the recovery system is put into use, the second valve 10 is opened → the first valve 8 is closed → the third valve 5 is opened → the fourth valve 4 is closed;
when the recovery system is not in use, the first valve 8 is opened → the third valve 5 is closed → the fourth valve 4 is opened → the third valve 5 is closed.
Economic benefit and social benefit: the recovery amount of the dead steam is converted into the flow of the commodity steam: 0.5 × 1,173,900/(3115 × 500) ═ 0.377t/h, which equates to a renminbi annually (8000 hours) of about 0.377 × 280 × 8000 (84.45 ten thousand yuan).
After project transformation, all equipment investment can be recovered when the equipment normally operates for less than half a year. The energy is saved, the steam consumption is reduced, the cost of a company is reduced by dozens of ten thousand yuan each year, the plant area environment is purified, clean production is realized, and the phenomenon of steam flooding on the top of the machine room in the prior art is eliminated.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a tire industry exhaust steam is retrieved and white system that disappears which characterized in that: the system comprises a flash steam recoverer, a recovery water tank, an ejector and a heating return water main pipeline;
the flash steam recoverer is connected with a flash steam source and is used for collecting flash steam;
the recovery water tank is connected with a bottom water outlet of the flash steam recoverer;
the inlet and the outlet of the injection flow channel of the injector are respectively connected with the upstream and the downstream of the heating return water main pipeline, and a first valve is arranged between the upstream and the downstream of the heating return water main pipeline;
an injected flow inlet of the injector is connected with a top outlet of the flash steam recoverer.
2. The tire industry exhaust steam recovery and white elimination system of claim 1, wherein: a check valve is arranged between the ejector outlet and the heating return water main pipeline.
3. The tire industry exhaust steam recovery and white elimination system of claim 1, wherein: and a second valve is arranged on a connecting pipeline between the inlet of the ejector and the heating return water main pipeline.
4. The tire industry exhaust steam recovery and white elimination system of claim 1, wherein: and a third valve is arranged on a connecting pipeline between the ejector and the flash steam recoverer.
5. The tire industry exhaust steam recovery and white elimination system of claim 1, wherein: a branch is arranged on a connecting pipeline between the ejector and the flash steam recoverer, a fourth valve is arranged on the branch, and the tail end of the branch is communicated with the environment.
6. The tire industry exhaust steam recovery and white elimination system of claim 5, wherein: the fourth valve is positioned above the flash steam recoverer, and the distance between the fourth valve and the flash steam recoverer is 0.3-1 m.
7. The tire industry exhaust steam recovery and white elimination system of claim 6, wherein: the fourth valve is positioned above the flash steam recoverer, and the distance between the fourth valve and the flash steam recoverer is 0.5-1 m.
8. The tire industry exhaust steam recovery and white elimination system of claim 7, wherein: and a bypass pipeline is led out of the branch pipeline, a safety valve is arranged on the bypass pipeline, and the bypass pipeline is arranged at the upstream of the fourth valve.
9. The tire industry exhaust steam recovery and white elimination system of claim 1, wherein: the flash steam recoverer is a surface condensing type or a steam-water separator.
10. The tire industry exhaust steam recovery and white elimination system of claim 1, wherein: the flash steam recoverer is fixedly installed close to the steam exhaust pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220518781.3U CN217441782U (en) | 2022-03-09 | 2022-03-09 | Exhaust steam recycling and white elimination system in tire industry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220518781.3U CN217441782U (en) | 2022-03-09 | 2022-03-09 | Exhaust steam recycling and white elimination system in tire industry |
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| Publication Number | Publication Date |
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| CN217441782U true CN217441782U (en) | 2022-09-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220518781.3U Active CN217441782U (en) | 2022-03-09 | 2022-03-09 | Exhaust steam recycling and white elimination system in tire industry |
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| Country | Link |
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| CN (1) | CN217441782U (en) |
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2022
- 2022-03-09 CN CN202220518781.3U patent/CN217441782U/en active Active
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