CN215829082U - Safe drainage device of overflow machine - Google Patents
Safe drainage device of overflow machine Download PDFInfo
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- CN215829082U CN215829082U CN202120725825.5U CN202120725825U CN215829082U CN 215829082 U CN215829082 U CN 215829082U CN 202120725825 U CN202120725825 U CN 202120725825U CN 215829082 U CN215829082 U CN 215829082U
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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
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
A safety drain for an overflow machine, comprising: the overflow dyeing machine comprises an overflow dyeing machine, a heat exchanger and a waste heat storage tank, wherein the heat exchanger is provided with a pressure regulating device and a temperature regulating device, the pressure regulating device comprises an air inlet pressure pipeline and an air exhaust pipeline, and the temperature regulating device comprises a heating pipeline and a cooling pipeline; when the heat exchanger is used, the air inlet pipeline enables air pressure to enter the heat exchanger, so that cold water in the heat exchanger and the recovery pipeline is thoroughly discharged under the interference of the air pressure, the air inlet pipeline is closed after the cold water is discharged, the exhaust pipeline is opened, the exhaust pipeline is closed when the internal pressure of the heat exchanger is restored to normal pressure, and steam is conveyed through the heating pipeline for heating; and after dyeing is finished, cold water is conveyed by using a cooling pipeline through a heat exchanger to be cooled, and the displaced warm water is pumped into a waste heat storage tank for later use. By repeating the process, the water hammer phenomenon generated during steam heating can be reduced while the steam is effectively saved, and the risk of pipeline breakage is reduced.
Description
Technical Field
The utility model relates to the field of textile dyeing equipment, in particular to a safe drainage device of an overflow machine.
Background
Overflow dyeing machine is that the printing and dyeing mill uses more dyeing equipment, and in prior art, it is many to wash high temperature waste water after the dyeing, and energy consumption is big to in the equipment normal operating process, need often switch under the temperature of difference, for example: when the temperature needs to be reduced after the high-temperature dyeing is finished, the temperature needs to be reduced by means of cooling water; however, when the temperature is required to be raised to be switched to a steam heating mode, the cold water in the heat exchanger and the recovery pipeline cannot be emptied, so that the steam enters the connecting pipeline and then generates severe shock, namely, the phenomenon of water hammer of a steam system is caused, and the recovery pipeline is broken or even a safety accident is caused in severe cases.
Therefore, it is necessary to provide an overflow energy-saving safe drainage device for preventing the water hammer phenomenon of the steam system.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the prior art, the present invention aims to: through improving the connected mode of current overflow machine pipeline, provide one kind and can prevent to take place the water hammer phenomenon, reduce the incident and take place, can improve the safe drainage device of overflow machine of energy-conserving effect again.
In order to realize the purpose of the utility model, the application provides the following technical scheme:
a safety drain for an overflow machine, comprising: overflow dyeing machine, heat exchanger, waste heat holding vessel, overflow dyeing machine with heat exchanger passes through first circulation pipeline circulation intercommunication, be provided with pressure regulating device and temperature regulation device on the heat exchanger, pressure regulating device includes air inlet pressure gas pipeline and exhaust pipe, temperature regulation device includes heating pipeline and cooling line, heat exchanger pass through the second circulation pipeline with first waste heat holding vessel circulation intercommunication. Reduce the steam system water hammer phenomenon that produces during steam heating, reduce the cracked risk of pipeline.
The first circulation pipeline and the second circulation pipeline share one circulation pump.
The second circulating pipeline comprises a waste heat recovery pipeline and a first hot water supply pipeline.
And a drain valve is arranged on the waste heat recovery pipeline.
And a first raw water inlet pipeline is also arranged on the first hot water supply pipeline.
And the first raw water inlet pipeline, the first hot water supply pipeline, the air inlet and compression pipeline, the exhaust pipeline, the heating pipeline and the cooling pipeline are all provided with switch valves.
The safety drainage device also comprises a PLC, and the PLC is in communication connection with the switch valve and the drain valve.
The safety drainage device further comprises a waste heat recoverer, the overflow dyeing machine is communicated with the waste heat recoverer through a sewage discharge hot water pipeline, the waste heat recoverer is connected with a sewage discharge pipeline and a second raw water inlet pipeline, and the waste heat recoverer is communicated with a second waste heat storage tank through a hot water pipeline.
The second waste heat storage tank is communicated with the heat exchanger through a second hot water supply pipeline, and the second hot water supply pipeline, the first circulating pipeline and the second circulating pipeline share one circulating pump.
The first waste heat storage tank and the second waste heat storage tank in the safety drainage device are respectively arranged or are the same.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model relates to a safe drainage device of an overflow machine, which comprises: the overflow dyeing machine comprises an overflow dyeing machine, a heat exchanger and a waste heat storage tank, wherein the heat exchanger is provided with a pressure regulating device and a temperature regulating device, the pressure regulating device comprises an air inlet pressure pipeline and an air exhaust pipeline, and the temperature regulating device comprises a heating pipeline and a cooling pipeline; when the heat exchanger is used, firstly, the air inlet pressure pipeline is opened to enable air pressure to enter the heat exchanger, cold water in the heat exchanger is enabled to be thoroughly discharged under the interference of the air pressure, the air inlet pressure pipeline is closed after the cold water is discharged, the exhaust pipeline is opened, the exhaust pipeline is closed when the internal pressure of the heat exchanger is restored to normal pressure, and then steam is conveyed through the heating pipeline to be heated; and after dyeing is finished, the heat exchanger is used for conveying cold water through the cooling pipeline to cool, and the displaced warm water is pumped into the waste heat storage tank for later use. The water hammer phenomenon of a steam system generated during steam heating can be reduced, and the risk of pipeline breakage is reduced.
2. The heat energy of the heat exchanger and the hot waste liquid, the cooling water and the raw water are subjected to heat exchange and then stored, and the heat energy and the cooling water are pumped into the overflow machine by means of the heat exchanger when in use, so that the water temperature required by the process can be reached by using a small amount of steam, the energy utilization efficiency is improved, and the cost is saved.
Drawings
In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings described below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the present invention.
Reference numerals: 1-overflow dyeing machine, 2-heat exchanger, 3-exhaust pipeline, 4-air inlet and pressure pipeline, 5-heating pipeline, 6-cooling pipeline, 7-waste heat recoverer, 8-waste heat storage tank, 9-pipeline, 10-valve, 11-circulating pump, 12-PLC, 13-drain valve.
Detailed Description
The technical solutions in the specific embodiments of the present invention will be clearly and completely described below, and it should be understood that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example one
An embodiment of a safety drain of an overflow machine according to the present invention will be described in detail with reference to fig. 1.
As shown in fig. 1, a safety drain of an overflow machine includes: the overflow dyeing machine comprises an overflow dyeing machine 1, a heat exchanger 2, a waste heat storage tank 8, a pipeline 9 and a PLC 12, wherein the waste heat storage tank 8 comprises a first waste heat storage tank and a second waste heat storage tank, the overflow dyeing machine 1 and the heat exchanger 2 are circularly communicated through a first circulating pipeline, a pressure adjusting device and a temperature adjusting device are arranged on the heat exchanger 2, the pressure adjusting device comprises an air inlet pressure pipeline 4 and an air outlet pipeline 3, and the temperature adjusting device comprises a heating pipeline 5 and a cooling pipeline 6; the overflow dyeing machine 1 needs to completely drain the water in the heat exchanger 2 and the pipeline when dyeing is carried out, so that heating can be carried out. When the heat exchanger 2 is used, firstly, the air inlet pressure pipeline 4 is opened to enable air pressure to enter the heat exchanger 2, cold water in the heat exchanger 2 is enabled to be discharged under the interference of the air pressure, the air inlet pressure pipeline 4 is closed after the cold water is discharged, the exhaust pipeline 3 is opened, the exhaust pipeline 3 is closed when the internal pressure of the heat exchanger 2 is recovered to normal pressure, and then steam is conveyed through the heating pipeline 5 to be heated; and after the high-temperature dyeing is finished, the cooling pipeline 6 is used for conveying cold water to cool, and the processes are repeated, so that the water hammer phenomenon of a steam system generated during steam heating can be avoided, and the risk of pipeline breakage is reduced.
As shown in FIG. 1, each instrument is connected with the device by a pipeline 9, and the pipeline 9 is made of 304 or 316L stainless steel. The valve 10, the circulating pump 11 and the drain valve 13 of the safety drainage device of the overflow machine are controlled by the PLC, so that manual operation is reduced, and errors and risks are reduced.
In order to reduce energy cost, in the embodiment, the heat exchanger 2 and the waste heat storage tank 8 are circularly connected through a first circulating pipeline, a first raw water inlet pipeline is arranged on the first circulating pipeline, and the first circulating pipeline and the first raw water inlet pipeline share one drain valve 13. When the overflow dyeing machine 1 needs cooling after high-temperature dyeing is finished, the high-temperature wastewater is cooled through the heat exchanger 2; and opening a cooling pipeline 6 to convey cooling water 7 to the heat exchanger 2, wherein the cooling water is changed into high-temperature clean water after heat exchange is carried out in the heat exchanger 2, and is conveyed to the first waste heat storage tank for standby through a pipeline 9. When the overflow dyeing machine 1 needs to add hot water, high-temperature clean water in the first waste heat storage tank directly passes through the heat exchanger 2, and a small amount of steam is applied to achieve the water temperature required by the process.
Example two
As shown in fig. 2, the difference from the first embodiment is that the safety drainage device of the overflow machine further includes a waste heat recovery device 7, the overflow dyeing machine 1 is communicated with the waste heat recovery device 7 through a sewage hot water pipeline, the waste heat recovery device 7 is connected with a sewage drainage pipeline and a second raw water inlet pipeline, the waste heat recovery device 7 is communicated with a second waste heat storage tank through a hot water pipeline, and the temperatures of the high-temperature clean water recovered by the first waste heat storage tank and the second waste heat storage tank are different, and the high-temperature clean water can be divided into two waste heat storage tanks 8 on the premise of being allowed by the field; the two waste heat storage tanks 8 can also be combined into one when the conditions in the field do not allow them. After dyeing is finished, the overflow dyeing machine 1 firstly performs heat exchange with cooling water in the heat exchanger 2 by the connection mode provided by the first embodiment, and the hot waste liquid is discharged through a drain outlet after being cooled to below 80 ℃, so that heat energy of the waste liquid can be recovered again. In this embodiment, overflow dyeing machine 1 is connected with waste heat recoverer 7 and second waste heat storage tank in proper order through pipeline 9, and overflow dyeing machine 1 is after dyeing, and the hot waste liquid below 80 ℃ is carried to waste heat recoverer 7 through pipeline 9, opens second and advances the former water pipeline and add the raw water and pass through waste heat exchanger and the heat replacement of hot waste liquid after, carry and deposit to second waste heat storage tank, and the waste liquid after the heat replacement passes through the drain and discharges at last.
Heat exchange for temperature reduction in the heat exchanger 2 by cooling water; the connection mode that the raw water and the hot waste liquid are subjected to heat exchange can effectively recover the heat energy of the waste water. When the overflow machine needs hot water, the water temperature required by the process can be achieved by using a small amount of steam, and the energy cost is reduced.
The above detailed description is provided for the safety drainage device of the overflow machine, and the structure and the operation principle of the utility model are explained by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present application. It should be noted that, for those skilled in the art, it is possible to make several improvements and modifications to the present application without departing from the principle of the present application, and such improvements and modifications also fall within the scope of the claims of the present application.
Claims (10)
1. A safety drain for an overflow machine, comprising: overflow dyeing machine, heat exchanger and waste heat storage, characterized in that,
the overflow dyeing machine is in circulating communication with the heat exchanger through a first circulating pipeline;
the heat exchanger is provided with a pressure regulating device and a temperature regulating device, the pressure regulating device comprises an air inlet pressure pipeline and an air outlet pipeline, and the temperature regulating device comprises a heating pipeline and a cooling pipeline;
the heat exchanger is in circulating communication with the first waste heat storage tank through a second circulating pipeline.
2. The safety drain of claim 1, wherein the first circulation line and the second circulation line share a single circulation pump.
3. The safety drain of claim 1, wherein the second circulation line comprises a waste heat recovery line and a first hot water supply line.
4. A safety drain according to claim 3, wherein a trap is provided in the waste heat recovery line.
5. A safety water drain device according to claim 4, wherein a first raw water inlet pipeline is further arranged on the first hot water supply pipeline.
6. A safety water drainage device according to claim 5, wherein the first raw water inlet pipeline, the first hot water supply pipeline, the air inlet and compressed air pipeline, the exhaust pipeline, the heating pipeline and the cooling pipeline are all provided with switch valves.
7. The safety drain of claim 6, further comprising a PLC communicatively coupled to the on/off valve and the trap.
8. The safety water discharge device according to any one of claims 1 to 7, further comprising a waste heat recovery device, wherein the overflow dyeing machine is communicated with the waste heat recovery device through a blowdown hot water pipeline, a blowdown water pipeline and a second raw water inlet pipeline are connected to the waste heat recovery device, and the waste heat recovery device is communicated with a second waste heat storage tank through a hot water pipeline.
9. The safety water drain device according to claim 8, wherein the second waste heat storage tank is communicated with the heat exchanger through a second hot water supply pipeline, and the second hot water supply pipeline shares a circulating pump with the first circulating pipeline and the second circulating pipeline.
10. The safety water discharge device according to claim 8, wherein the first waste heat storage tank and the second waste heat storage tank in the safety water discharge device are respectively arranged or are the same waste heat storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120725825.5U CN215829082U (en) | 2021-04-09 | 2021-04-09 | Safe drainage device of overflow machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120725825.5U CN215829082U (en) | 2021-04-09 | 2021-04-09 | Safe drainage device of overflow machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215829082U true CN215829082U (en) | 2022-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120725825.5U Active CN215829082U (en) | 2021-04-09 | 2021-04-09 | Safe drainage device of overflow machine |
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| CN (1) | CN215829082U (en) |
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2021
- 2021-04-09 CN CN202120725825.5U patent/CN215829082U/en active Active
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