CN218147359U - Two-stage temperature-raising energy-saving device of high-temperature overflow dyeing machine - Google Patents
Two-stage temperature-raising energy-saving device of high-temperature overflow dyeing machine Download PDFInfo
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- CN218147359U CN218147359U CN202222285313.9U CN202222285313U CN218147359U CN 218147359 U CN218147359 U CN 218147359U CN 202222285313 U CN202222285313 U CN 202222285313U CN 218147359 U CN218147359 U CN 218147359U
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Abstract
The utility model relates to a dyeing machine field, concretely relates to high temperature overflow dyeing machine two-stage process intensification economizer. It includes the heat exchanger, circulation cooling pond high temperature pond, circulation cooling pond low temperature pond, the heat exchanger import, the export is equipped with first multidirectional control valve respectively, the multidirectional control valve of second, an interface and circulation cooling pond high temperature pond intercommunication of first multidirectional control valve, another interface and circulation cooling pond low temperature pond intercommunication of first multidirectional control valve, an interface and circulation cooling pond high temperature pond intercommunication of the multidirectional control valve of second, another interface and circulation cooling pond low temperature pond intercommunication of the multidirectional control valve of second. The utility model discloses utilize the waste heat resource of dyeing machine to heat the preceding stage of technology section of heating, back stage is switched to steam heating again, improves waste heat resource utilization and rates, reduces steam consumption to through introducing digital intelligent control unit, realize the full-automatic optimization of waste heat recovery.
Description
Technical Field
The utility model relates to a dyeing machine field, concretely relates to high temperature overflow dyeing machine two-stage process intensification economizer.
Background
The high-temperature high-pressure overflow dyeing machine commonly used by printing and dyeing enterprises is large in water consumption, high in steam consumption and low in energy utilization efficiency, so that the waste heat of the dyeing machine needs to be fully utilized, and the energy utilization rate is improved.
The waste heat resources of the high-temperature overflow dyeing machine mainly comprise three types, namely steam condensate water waste heat with the temperature of about 70-90 ℃ (accounting for about 12% of the total amount of the waste heat), circulating cooling water waste heat with the temperature of about 70 ℃ (accounting for about 40% of the total amount of the waste heat), dyeing process waste water waste heat with the temperature of about 70 ℃ (accounting for about 40% of the total amount of the waste heat), and other unorganized heat dissipation losses. Among the three types of waste heat resources, steam condensate water is generally directly used as process water due to good water quality (part of the steam condensate water is directly gathered into a circulating cooling water pool due to too high temperature), the circulating cooling water has good water quality in most cases and can be directly used, and part of the steam condensate water can be polluted due to leakage of a heat exchanger and cannot be directly used. The dyeing process wastewater has poor water quality, contains a large amount of impurities and complex chemical components, and is generally not recommended to be utilized. Even if the initial temperature of the process water reaches 40 ℃, in winter in the south of the Yangtze river, the first-class waste heat and the second-class waste heat are only utilized by less than 30%, a large amount of waste heat resources are still wasted, and the process water can be only used as common process water after being cooled by a cooling tower.
The operation of the dyeing machine is mainly divided into several phases: initial section-temperature rising section-heat preservation section-temperature reduction section-cleaning-discharging. In the initial stage, process water, materials and the like are added, wherein the process water generally consists of fresh normal-temperature water and partial reclaimed water and steam condensate water, the temperature is higher than the ambient temperature (generally below 40 ℃), the process water enters a temperature rising stage after water inlet and feeding are finished, the process water is heated to the process temperature (for example, the process temperature is about 130 ℃) by using steam, the process water is subjected to heat preservation for a period of time, the process water enters a temperature lowering stage, and then the process water is subjected to cleaning and discharging stages. In the heating and heat preservation stages, heat energy is needed to heat the process water and the materials.
The waste heat recycling of the existing dyeing machine is mainly embodied in the initial stage, namely, the waste heat is utilized to improve the water inlet temperature of process water, but due to the characteristics of the dyeing process, the sensitivity of different dyes to the temperature has larger difference, the initial temperature of the process water cannot be improved unlimitedly, so the initial temperature of the process water can be controlled below 40 ℃ generally, even from the normal temperature, the utilized waste heat resource quantity is very limited and can only be used in the range from the normal temperature to 40 ℃, the available quantity of the waste heat is little due to higher environmental temperature in summer, the quantity is relatively large in winter, and the section with higher temperature needs to be heated by steam, so that a large quantity of waste heat resources of the dyeing machine cannot be utilized.
SUMMERY OF THE UTILITY MODEL
The initial temperature to be limited by process water among the prior art leads to the lower not enough of dyeing machine waste heat utilization ratio, the utility model aims to provide a high temperature overflow dyeing machine two-stage method intensification economizer utilizes the waste heat resource of dyeing machine to heat the preceding stage of section that rises, and back stage is switched to steam heating again, improves the waste heat resource utilization ratio of dyeing machine, reduces the steam consumption of whole dyeing process.
In order to achieve the above purpose, the utility model provides a following technical scheme: a two-stage method heating energy-saving device of a high-temperature overflow dyeing machine comprises a steam input pipeline, a dyeing machine, a regulating water tank and a circulating cooling water tank, wherein the regulating water tank is communicated with the dyeing machine through a process water pipeline, a heat exchanger is arranged on the dyeing machine, the steam input pipeline is communicated with an inlet of the heat exchanger, a steam power regulating valve is arranged on the steam input pipeline, an inlet of the heat exchanger is provided with a water inlet pipeline, a first multidirectional control valve and a circulating water regulating valve are arranged on the water inlet pipeline, an outlet of the heat exchanger is provided with a water return pipeline, a second multidirectional control valve is arranged on the water return pipeline, the circulating cooling water tank comprises a circulating cooling water tank high-temperature tank and a circulating cooling water tank low-temperature tank, one interface of the first multidirectional control valve is communicated with the circulating cooling water tank high-temperature tank through a high-temperature circulating cooling water pipeline, the other interface of the first multidirectional control valve is communicated with the circulating cooling water tank low-temperature tank through a circulating cooling water pipeline, circulating water pumps are arranged on the high-temperature circulating cooling water return pipeline and the circulating cooling water pipe, one interface of the second multidirectional control valve is communicated with the circulating cooling water tank through a low-temperature circulating cooling water pipeline.
Through this setting, the original heat exchanger of make full use of dyeing machine, in the preceding stage of intensification section, the hot water that uses in the circulation cooling pond high temperature pond is as the heat source, through the process water of heat exchanger with waste heat transfer to in the dyeing machine. Because the heat exchanger also bears the function of cooling, cold/hot water entering/discharging the heat exchanger needs to be switched according to the designed function, and therefore a first multidirectional control valve and a second multidirectional control valve are additionally arranged at the inlet and the outlet of the heat exchanger. When the device is used in a heating state, a first multidirectional control valve at the inlet of the heat exchanger is switched to a high-temperature circulating cooling water pipeline, a second multidirectional control valve at the outlet of the heat exchanger is switched to a low-temperature circulating cooling water return pipeline, high-temperature circulating cooling water in a high-temperature pool of the circulating cooling water pool at the moment flows through the high-temperature circulating cooling water pipeline, a water inlet pipeline, the heat exchanger and the dyeing machine to heat process water, and flows into a low-temperature pool of the circulating cooling water pool from a water return pipeline and the low-temperature circulating cooling water return pipeline when being discharged. When the device is used in a cooling state, a first multi-directional control valve at the inlet of the heat exchanger is switched to an original circulating cooling water pipeline, a second multi-directional control valve at the outlet of the heat exchanger is switched to an original circulating cooling water return pipeline, low-temperature circulating cooling water in a low-temperature pool of the circulating cooling water pool flows through the circulating cooling water pipeline, a water inlet pipeline, the heat exchanger and the dyeing machine to cool process water with high temperature after dyeing, and the process water flows into a high-temperature pool of the circulating cooling water pool from the water return pipeline and the circulating cooling water return pipeline during discharging. The heat exchanger is used for heating and cooling, steam or high-temperature circulating cooling water flows in the pipe during heating, the pipe is still kept in the original state during cooling, and low-temperature circulating cooling water flows in the pipe. The process water in the dyeing machine still flows outside the tube, and the process conditions are not changed. When the temperature is raised by steam, the original state is kept.
According to the technical scheme, the temperature rising section of the process water is divided into two stages, different heat sources are adopted for rising the temperature in the two stages, the waste heat resources (high-temperature circulating cooling water) of the dyeing machine are adopted for rising the temperature in the former stage, and the original steam is adopted for rising the temperature in the latter stage, so that the utilization rate of the waste heat resources of the dyeing machine is improved, and the steam consumption is reduced. The selection of steam or high-temperature circulating cooling water can be adjusted through the set temperature switching point, and the control is performed through the switch of the steam power adjusting valve or the circulating water adjusting valve.
In addition still carry out the subregion transformation to the circulation cooling pond, separate for "circulation cooling pond high temperature pond" and "circulation cooling pond low temperature pond", through addding "high temperature circulation cooling water pipeline" of the same kind "," low temperature circulation cooling water return water pipeline "and carry with" circulating water pump ", set up" first multidirectional control valve "through heat exchanger import department and switch and select to be the low temperature circulation cooling water cooling of the high temperature pond temperature rise of high temperature circulation cooling water with circulation cooling pond or with circulation cooling pond low temperature pond, switch through heat exchanger export" second multidirectional control valve "and select to discharge to circulation cooling pond low temperature pond or circulation cooling pond high temperature pond, thereby realize the function of design.
The utility model discloses still further set up to: the steam power regulating valve and the circulating water regulating valve are controlled by the control unit. Through this setting, the control unit can control the break-make of each valve, switch etc. improves the degree of automation of dyeing machine.
The utility model discloses still further set up to: thermometers are arranged at the two ends of the heat exchanger, on the dyeing machine, the adjusting water tank, the circulating cooling water tank high-temperature tank and the circulating cooling water tank low-temperature tank, and the temperature measured by the thermometers is fed back to the control unit. Through the arrangement, in order to achieve a good heating effect of circulating water on process water, the real-time water temperature of the process water and the water temperature of circulating cooling water need to be monitored, the measured water temperatures are fed back to the control unit, the control unit controls the operation of all valves according to the measured water temperatures, for example, a thermometer can measure the process water temperature in a dyeing machine and the circulating cooling water temperature in a circulating cooling water pool high-temperature pool, when the temperature difference between the process water temperature and the circulating cooling water is larger than a certain value, the heating mode that the high-temperature circulating cooling water is used as a heat source is switched to, the first multi-directional control valve and the second multi-directional control valve are controlled to be located at corresponding positions, the steam power regulating valve is closed, the circulating water regulating valve is opened, the control unit calculates a heating value, and the circulating water pump is started.
The utility model discloses still further set up to: the water return pipeline, the high-temperature circulating cooling water pipeline, the circulating cooling water return pipeline and the low-temperature circulating cooling water return pipeline are all provided with control valves, and the control valves are controlled by the control unit. Through this setting, the control unit can control each control valve, adjusts flow, break-make on each pipeline. As the temperature of the process water and the temperature of the water in the high-temperature pool of the circulating cooling water pool are changed, the system is provided with a main control unit for intelligently calculating the temperature switching point with the best economical efficiency, thereby achieving the automatic optimization control of the temperature rising process of the dyeing machine.
The utility model discloses still further set up to: and the outlet of the heat exchanger is also provided with a steam condensate pipeline which is respectively communicated with the adjusting water pool and the circulating cooling water pool high-temperature pool, and the steam condensate pipeline is provided with a control valve which is controlled by a control unit. Through this setting, the steam condensate water can be retrieved and use as the process water in the regulation pond, because the steam condensate water temperature is higher, also cleaner, can directly be used for using as the process water to improve the temperature of intaking of process water, the control valve can control the volume that the steam condensate water got into the regulation pond, and the temperature of intaking in case the process water is too high. In addition, the water can also be supplemented into a high-temperature pool of a circulating cooling water pool to be used as heat source water for a process water heating section subsequently.
The utility model discloses still further set up to: the dyeing machine is characterized by further comprising a normal-temperature water input pipeline, wherein the normal-temperature water input pipeline is provided with two branches, one branch is communicated with the adjusting water tank, the other branch is communicated with the dyeing machine, a control valve is arranged on the branch input into the adjusting water tank, and the control valve is controlled by the control unit. Through this setting, normal atmospheric temperature water input pipeline is used for supplying normal atmospheric temperature water for the regulation pond to mix as the process water with the hot water of dyeing machine's waste heat recovery and use, the injection volume of normal atmospheric temperature water can be controlled to the control valve, thereby ensures that the influent temperature of process water can reach the maximum initial temperature value that the technology allows, and prevents the overtemperature. In addition, the normal-temperature water input pipeline can also provide normal-temperature water for the dyeing machine to be used as washing water.
The utility model discloses still further set up to: still include circulation circuit, regulation pond, circulation cooling pond high temperature pond, circulation cooling pond low temperature pond set gradually on the circulation circuit, be equipped with the cooling tower on the circulation circuit between circulation cooling pond high temperature pond and the circulation cooling pond low temperature pond for the unable heat that is more than that utilizes of exhaust system, circulation cooling water after the cooling is imported to circulation cooling pond low temperature pond in. And a control valve is arranged on a circulation loop between the adjusting water tank and the high-temperature tank of the circulating cooling water tank and is controlled by a control unit. Through this setting, the circulating water in circulation cooling pond high temperature pond, the circulation cooling pond low temperature pond all has different temperatures, retrieves and uses as the process water in the regulation pond, can adjust the temperature of process water, and the control valve can control the volume of the circulating water that gets into the regulation pond.
The utility model discloses still further set up to: the dyeing machine is provided with a washing water input pipeline, a third multi-directional control valve is arranged on the washing water input pipeline, one interface of the third multi-directional control valve is communicated with the reclaimed water tank through a pipeline, the other interface of the third multi-directional control valve is communicated with the circulating cooling water tank low-temperature tank through a pipeline, and the reclaimed water tank is arranged on the circulating loop and located at the upstream of the circulating cooling water tank low-temperature tank. Through this setting, dyeing machine dyeing can be through the multichannel washing after finishing, and the washing water is selected through controlling the multidirectional control valve of third, can be taken from circulation cooling pond low temperature pond or middle water pond, and cleaning waste water directly discharges the effluent water sump through waste water discharge pipeline and handles.
The utility model discloses still further set up to: the dyeing machine is provided with a dyeing process wastewater discharge pipeline which is communicated with the dyeing process wastewater tank, and wastewater in the dyeing process wastewater tank is communicated with the reclaimed water tank through a pipeline after being treated. Through this setting, dyeing technology waste water temperature is higher relatively, but the impurity is more can not directly regard as the process water to use, and the waste water still has certain temperature through the normal water that obtains after the processing, can supply regulation pond and circulation cooling pond, and both partial waste heat of recovery can regard as circulation cooling water to use again, has practiced thrift the water resource.
The utility model has the advantages that: the temperature rising section of the process water is divided into two stages, the two stages adopt different heat sources for rising temperature, the former stage adopts the waste heat resource (high-temperature circulating cooling water) of the dyeing machine for rising temperature, and the latter stage adopts the original steam for rising temperature, thereby improving the utilization rate of the waste heat resource of the dyeing machine and reducing the steam consumption. The selection of steam or high-temperature circulating cooling water can be realized by controlling the switches of the steam power regulating valve and the circulating water regulating valve. Besides, it has several advantages: 1) The function of the original device is not changed, the high-temperature circulating cooling water heating mode is used as an additional heating mode, the device runs according with the temperature difference condition, and the device does not run according to the original steam heating mode. 2) The heat exchange equipment is not required to be added, the heat exchanger of the dyeing machine is utilized, and the pipelines of different heating modes are switched through the first multi-way control valve and the second multi-way control valve. 3) The device automatically runs without manual interference, and automatically establishes the balance of heat and water quantity through the control of each temperature acquisition point and a computer system, thereby improving the automation level and the production efficiency. 4) Besides improving the waste heat recovery utilization rate, the temperature of the high-temperature circulating cooling water is reduced after heat exchange, so that the operation energy consumption of the cooling tower is also reduced.
Drawings
Fig. 1 is a schematic structural view of a dyeing machine according to an embodiment of the present invention;
fig. 2 is a schematic view of a partial structure of a dyeing machine according to an embodiment of the present invention.
Reference numerals: the system comprises a steam input pipeline 100, a dyeing machine 101, a regulating water tank 102, a circulating cooling water tank high-temperature tank 103, a circulating cooling water tank low-temperature tank 104, a process water pipeline 105, a heat exchanger 106, a steam power regulating valve 107, a water inlet pipeline 108, a first multi-directional control valve 109, a circulating water regulating valve 110, a water return pipeline 111, a second multi-directional control valve 112, a high-temperature circulating cooling water pipeline 113, a circulating cooling water pipeline 114, a heating circulating water pump 115, a cooling circulating water pump 116, a circulating cooling water return pipeline 117, a low-temperature circulating cooling water return pipeline 118, a first thermometer 119, a second thermometer 120, a third thermometer 121, a fourth thermometer 122, a fifth thermometer 123, a sixth thermometer 124, a first control valve 126, a second control valve 127, a third control valve 128, a fourth control valve 129, a fifth control valve 130, a steam condensate water pipeline 131, a sixth control valve 132, a normal-temperature water input pipeline 133, a seventh control valve 134, a circulating loops 135, a cooling tower 136, a control valve eight 137, a normal-water tank 138, a cleaning water input pipeline 139, a third multi-directional control valve 140, a dyeing process water discharge pipeline 141 and a dyeing waste water discharge pipeline 142.
Detailed Description
In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The invention is further described with reference to the drawings and the specific embodiments.
Referring to fig. 1 and 2, in an embodiment of the present invention, the energy saving device for two-stage temperature rise of high temperature overflow dyeing machine includes a steam input pipeline 100, a dyeing machine 101, a regulating water tank 102, a circulating cooling water tank, the regulating water tank 102 is communicated with the dyeing machine 101 through a process water pipeline 105, a heat exchanger 106 is disposed on the dyeing machine 101, the steam input pipeline 100 is communicated with an inlet of the heat exchanger 106, a steam power regulating valve 107 is disposed on the steam input pipeline 100, an inlet of the heat exchanger 106 is provided with a water inlet pipeline 108, a first multidirectional control valve 109 and a circulating water regulating valve 110 are disposed on the water inlet pipeline 108, an outlet of the heat exchanger 106 is provided with a return water pipeline 111, a second multidirectional control valve 112 is disposed on the return water pipeline 111, the circulating cooling water tank includes a circulating cooling water tank high temperature tank 103, a circulating cooling water tank low temperature tank 104, an interface of the first multidirectional control valve 109 is communicated with the circulating cooling water tank 103 through a high temperature circulating cooling water pipeline 113, another interface of the first multidirectional control valve 109 is communicated with the circulating cooling water tank 104 through a circulating cooling water pipeline 114, a circulating water pump 113, a circulating cooling water tank 114 is disposed on the circulating cooling water pipeline 114, another interface of the circulating cooling water tank 109 is communicated with the circulating cooling water tank 104, a circulating cooling water tank 112 is communicated with the circulating cooling water tank 112, another circulating cooling water tank 112 is communicated with the circulating cooling water tank 104, and a circulating cooling water tank 112, and a circulating cooling water pump 113, and a circulating cooling water tank 112 is communicated with another high temperature control pipeline 117, and a circulating cooling water tank.
In this embodiment, the heat exchanger 106 of the dyeing machine 101 is fully utilized, and the hot water in the high-temperature tank 103 of the circulating cooling water tank is used as a heat source in the front stage of the temperature rising section, so that the waste heat is transferred to the process water in the dyeing machine 101. Because the heat exchanger 106 also has a cooling function, cold/hot water entering the heat exchanger 106 needs to be switched according to the realized function, and therefore, a first multi-directional control valve 109 and a second multi-directional control valve 112 are additionally arranged at the inlet and the outlet of the heat exchanger 106. When the device is used in a heating state, the first multi-directional control valve 109 at the inlet of the heat exchanger 106 is switched to the high-temperature circulating cooling water pipeline 113, the second multi-directional control valve 112 at the outlet of the heat exchanger 106 is switched to the low-temperature circulating cooling water return pipeline 118, process water in the dyeing machine 101 circularly flows through a pipeline communicated with the heat exchanger 106 at the moment, and high-temperature circulating cooling water in the high-temperature pool 103 of the circulating cooling water pool circularly flows through the high-temperature circulating cooling water pipeline 113, the water inlet pipeline 108, the heat exchanger 106, the return pipeline 111, the low-temperature circulating cooling water return pipeline 118 and the low-temperature pool 104 of the circulating cooling water pool to heat the process water. When the dyeing machine is used in a cooling state, the first multidirectional control valve 109 at the inlet of the heat exchanger 106 is switched to the original circulating cooling water pipeline 114, the second multidirectional control valve 112 at the outlet of the heat exchanger 106 is switched to the original circulating cooling water return pipeline 117, at the moment, the process water in the dyeing machine 101 circularly flows through the pipeline communicated with the heat exchanger 106, and the low-temperature circulating cooling water in the low-temperature pool 104 of the circulating cooling water pool circularly flows through the circulating cooling water pipeline 114, the water inlet pipeline 108, the heat exchanger 106, the water return pipeline 111, the circulating cooling water return pipeline 117 and the high-temperature pool 103 of the circulating cooling water pool to cool the high-temperature process water in the dyeing machine 101. The heat exchanger 106 is used for both heating and cooling, and when heating, steam or high-temperature circulating cooling water flows through the pipe, and when cooling, the pipe is still kept as it is, and when cooling, low-temperature circulating cooling water flows through the pipe. The process water in the dyeing machine 101 is still fed outside the tube, and the process conditions are not changed. When the temperature is raised by steam, the original state is kept.
In this embodiment, the temperature rising section of the process water is divided into two stages, the two stages use different heat sources for temperature rising, the former stage uses the waste heat resource (high-temperature circulating cooling water) of the dyeing machine 101 for temperature rising, and the latter stage uses the original steam for temperature rising, so as to improve the waste heat resource utilization rate of the dyeing machine 101, reduce the steam consumption, and the selection of the steam or the high-temperature circulating cooling water can be controlled by controlling the switch of the steam power regulating valve 107 or the circulating water regulating valve 110. In addition, the circulating cooling water pool is subjected to partition transformation and is divided into a high-temperature circulating cooling water pool 103 and a low-temperature circulating cooling water pool 104, one high-temperature circulating cooling water pipeline 113, a low-temperature circulating cooling water return pipeline 118 and a heating circulating water pump 115 for conveying are additionally arranged, a first multidirectional control valve 109 is arranged at the inlet of the heat exchanger 106 for switching to select heating by the high-temperature circulating cooling water in the high-temperature circulating cooling water pool 103 or cooling by the low-temperature circulating cooling water in the low-temperature circulating cooling water pool 104, and a second multidirectional control valve 112 is arranged at the outlet of the heat exchanger 106 for switching to select discharging to the low-temperature circulating cooling water pool 104 or the high-temperature circulating cooling water pool 103, so that the designed function is realized.
In addition, in order to increase the automation of the operation of the device, an intelligent operation control unit based on a computer system is also arranged, and the first multi-directional control valve 109, the second multi-directional control valve 112, the steam power regulating valve 107 and the circulating water regulating valve 110 are controlled by the control unit, so that the on-off, switching and the like of each valve are realized, and the automation degree of the dyeing machine 101 is improved.
Thermometers are arranged at two ends of the heat exchanger 106, the dyeing machine 101, the adjusting water tank 102, the circulating cooling water tank high-temperature tank 103 and the circulating cooling water tank low-temperature tank 104, temperatures measured by the thermometers are fed back to the control unit, and the thermometers are respectively marked by a thermometer I119, a thermometer II 120, a thermometer III 121, a thermometer IV 122, a thermometer V123 and a thermometer VI 124 for distinguishing. In order to achieve a good heating effect of the circulating water on the process water, the real-time water temperature of the process water and the water temperature of the circulating water need to be monitored, the measured water temperatures are fed back to the control unit, and the main control unit calculates the optimal temperature switching point in real time according to the measured water temperature data, so that the operation of each valve is controlled, and the optimization of the waste heat recovery efficiency is realized.
Control valves are arranged on the high-temperature circulating cooling water pipeline 113, the circulating cooling water pipeline 114, the circulating cooling water return pipeline 117, the low-temperature circulating cooling water return pipeline 118 and the water return pipeline 111, the control valves are controlled by the control unit, and for the convenience of distinguishing, the control valves are respectively marked by a control valve I126, a control valve II 127, a control valve III 128, a control valve IV 129 and a control valve V130. The control unit can control each control valve, and adjust the flow and the on-off on each pipeline, thereby achieving the automatic control of the dyeing machine 101.
When the device is actually operated:
1. the temperature of process water in the dyeing machine 101 is detected through a third thermometer 121, the water temperature of the circulating cooling water pool 103 is detected through a fifth thermometer 123, when the temperature difference between the two temperatures is larger than 20 ℃ (the temperature difference can be set), the heating mode using the high-temperature circulating cooling water as a heat source is switched, meanwhile, the first multi-directional control valve 109 and the second multi-directional control valve 112 are switched to corresponding positions, the original steam power regulating valve 107 of the device is in a closed state, the original circulating water power regulating valve of the device is opened, the control unit intelligently calculates corresponding heating values, and the heating circulating water pump 115 and the process water circulating pump are started. When the temperature difference is less than 20 ℃, the original steam heating is directly started, the original 'steam power regulating valve 107' of the device is opened, the original 'circulating water power regulating valve' of the device is closed, and the heating process is finished according to the original steam heating mode;
2. with the continuous heating process, when the temperature of the process water in the dyeing machine 101 reaches the switching control point temperature value, the heating circulating water pump 115 is closed, the original circulating water regulating valve 110 of the device is closed, the original steam power regulating valve 107 of the device is opened, and the steam heating mode is started until the heating process is completed. After the heat preservation process is finished, the original steam power regulating valve 107 of the device is closed, and a temperature reduction procedure is carried out;
3. when the dyeing machine 101 enters a cooling process after finishing the heat preservation process, the first multidirectional control valve 109 and the second multidirectional control valve 112 are switched to corresponding positions, the original cooling working mode of the device is recovered, the original circulating water regulating valve 110 of the device is opened, and the cooling circulating water pump 116 is started to finish the cooling process according to the original process requirements.
Referring to fig. 1, in an embodiment of the present invention, the outlet of the heat exchanger 106 is further provided with a steam condensate water pipeline 131, the steam condensate water pipeline 131 is respectively communicated with the regulation water tank 102 and the circulating cooling water tank high temperature tank 103, the steam condensate water pipeline 131 is provided with a control valve six 132, and the control valve six 132 is controlled by the control unit. The steam condensate can be recycled to the conditioning water tank 102 to be used as process water, and can be directly used as process water due to higher temperature and higher cleanness of the steam condensate, the water inlet temperature of the process water is increased, and the control valve six 132 can control the amount of the steam condensate entering the conditioning water tank 102 to prevent the water inlet temperature of the process water from being too high. In addition, the heat source water can also be supplemented into the high-temperature pool 103 of the circulating cooling water pool to be used as the heat source water of the subsequent process water heating section.
Referring to fig. 1, in an embodiment of the present invention, the system further includes a normal temperature water input pipeline 133, the normal temperature water input pipeline 133 has two branches, one branch is communicated with the regulation water tank 102, the other branch is communicated with the dyeing machine 101, a control valve seven 134 is arranged on the branch input to the regulation water tank 102, and the control valve seven 134 is controlled by the control unit. The normal temperature water input pipeline 133 is used for supplementing normal temperature water to the regulating water tank 102 so as to be mixed with hot water recovered by waste heat of the dyeing machine 101 to be used as process water, and the control valve seven 134 can control the injection amount of the normal temperature water so as to ensure that the inlet water temperature of the process water can reach the maximum starting temperature value allowed by the process and prevent overtemperature. In addition, the normal temperature water input line 133 can supply normal temperature water to the dyeing machine 101 for use as washing water.
Referring to fig. 1, in an embodiment of the present invention, the present invention further includes a circulation loop 135, the regulation water tank 102, the circulation cooling water tank high temperature tank 103, and the circulation cooling water tank low temperature tank 104 are sequentially disposed on the circulation loop 135, a cooling tower 136 is disposed on the circulation loop 135 between the circulation cooling water tank high temperature tank 103 and the circulation cooling water tank low temperature tank 104, a control valve eight 137 is disposed on the circulation loop 135 between the regulation water tank 102 and the circulation cooling water tank high temperature tank 103, and the control valve eight 137 is controlled by the control unit. Circulating water in the high-temperature tank 103 of the circulating cooling water tank has more waste heat, is supplemented into the regulating water tank 102 to be used as process water, can improve the water inlet temperature of the process water, and the control valve eight 137 can control the amount of the circulating water entering the regulating tank.
Referring to fig. 1, in an embodiment of the present invention, the dyeing machine further includes a middle water tank 138, a cleaning water input pipeline 139 is disposed on the dyeing machine 101, a third multi-directional control valve 140 is disposed on the cleaning water input pipeline 139, one interface of the third multi-directional control valve 140 is communicated with the middle water tank 138 through a pipeline, another interface of the third multi-directional control valve 140 is communicated with the circulating cooling water tank low temperature tank 104 through a pipeline, and the middle water tank 138 is disposed on the circulating loop 135 and located upstream of the circulating cooling water tank low temperature tank 104. After dyeing of the dyeing machine 101 is finished, multiple times of washing are carried out, washing water is selected from the middle water tank 138 or the low-temperature water tank 104 of the circulating cooling water tank by controlling the third multi-way control valve 140, and the washed wastewater is directly discharged to a sewage tank through a wastewater discharge pipeline for treatment.
Referring to fig. 1, in an embodiment of the present invention, the dyeing apparatus further includes a dyeing wastewater tank 141, a dyeing wastewater discharge pipeline 142 is disposed on the dyeing machine 101, the dyeing wastewater discharge pipeline 142 is communicated with the dyeing wastewater tank 141, and the dyeing wastewater tank 141 is communicated with the middle water tank 138 through a pipeline. The temperature of the dyeing process wastewater is relatively high, but the wastewater with more impurities can not be directly used as process water, the wastewater enters the middle water tank 138 after being treated, can be supplemented to the adjusting water tank 102 to be used as the process water, and can also be supplemented to the circulating cooling water tank 104 to be used as the circulating cooling water, so that partial waste heat is recovered, and the water resource is saved.
The above-mentioned embodiment is right the utility model specifically describes, only is used for going on further the explanation to the utility model, can not understand right the utility model discloses the limited of scope of protection, and technical engineer in this field is right according to above-mentioned utility model's content the utility model discloses make some non-essential improvements and adjustment all fall into within the scope of protection of the utility model.
Claims (9)
1. High temperature overflow dyeing machine two-stage process intensification economizer, including steam input pipeline, dyeing machine, regulation pond, circulation cooling pond, adjust the pond and pass through process water pipeline and dyeing machine intercommunication, be equipped with the heat exchanger on the dyeing machine, steam input pipeline and heat exchanger import intercommunication are equipped with steam power control valve, its characterized in that on the steam input pipeline: the heat exchanger import is equipped with water intake pipe, be equipped with first multidirectional control valve on the water intake pipe, the circulating water governing valve, the heat exchanger export is equipped with the return water pipeline, be equipped with the multidirectional control valve of second on the return water pipeline, the circulation cooling pond is including circulation cooling pond high temperature pond, circulation cooling pond low temperature pond, an interface of first multidirectional control valve passes through high temperature circulation cooling water pipeline and circulation cooling pond high temperature pond intercommunication, another interface of first multidirectional control valve passes through circulation cooling water pipeline and circulation cooling pond low temperature pond intercommunication, high temperature circulation cooling water pipeline all is equipped with circulating water pump on the circulation cooling water pipeline, an interface of second multidirectional control valve passes through circulation cooling return water pipeline and circulation cooling pond high temperature pond intercommunication, another interface of second multidirectional control valve passes through low temperature circulation cooling water return water pipeline and circulation cooling pond low temperature pond intercommunication.
2. The two-stage temperature-raising energy-saving device of the high-temperature overflow dyeing machine as claimed in claim 1, characterized in that: the steam power regulating valve and the circulating water regulating valve are controlled by the control unit.
3. The two-stage temperature-raising energy-saving device of the high-temperature overflow dyeing machine as claimed in claim 2, characterized in that: thermometers are arranged at the two ends of the heat exchanger, on the dyeing machine, on the adjusting water tank, on the circulating cooling water tank high-temperature tank and on the circulating cooling water tank low-temperature tank, and the temperatures measured by the thermometers are fed back to the control unit.
4. The two-stage temperature-raising energy-saving device of the high-temperature overflow dyeing machine as claimed in claim 2, characterized in that: and the water return pipeline, the high-temperature circulating cooling water pipeline, the circulating cooling water return pipeline and the low-temperature circulating cooling water return pipeline are respectively provided with a control valve, and the control valves are controlled by the control unit.
5. The two-stage temperature-raising energy-saving device of the high-temperature overflow dyeing machine according to claim 2, characterized in that: and the outlet of the heat exchanger is also provided with a steam condensate pipeline which is respectively communicated with the adjusting water pool and the circulating cooling water pool high-temperature pool, and the steam condensate pipeline is provided with a control valve which is controlled by a control unit.
6. The two-stage temperature-raising energy-saving device of the high-temperature overflow dyeing machine according to claim 2, characterized in that: the dyeing machine is characterized by further comprising a normal-temperature water input pipeline, wherein the normal-temperature water input pipeline is provided with two branches, one branch is communicated with the adjusting water tank, the other branch is communicated with the dyeing machine, a control valve is arranged on the branch input into the adjusting water tank, and the control valve is controlled by the control unit.
7. A two-stage process temperature-rising energy-saving device of a high-temperature overflow dyeing machine according to any one of claims 1 to 6, characterized in that: the circulating loop between the adjusting water tank and the circulating cooling water tank high-temperature tank is provided with a control valve, and the control valve is controlled by a control unit.
8. The two-stage temperature-raising energy-saving device of the high-temperature overflow dyeing machine as claimed in claim 7, characterized in that: the dyeing machine is provided with a washing water input pipeline, a third multi-directional control valve is arranged on the washing water input pipeline, one interface of the third multi-directional control valve is communicated with the reclaimed water tank through a pipeline, the other interface of the third multi-directional control valve is communicated with the circulating cooling water tank low-temperature tank through a pipeline, and the reclaimed water tank is arranged on the circulating loop and located at the upstream of the circulating cooling water tank low-temperature tank.
9. The two-stage temperature-raising energy-saving device of the high-temperature overflow dyeing machine as claimed in claim 8, characterized in that: the dyeing machine is provided with a dyeing process wastewater discharge pipeline which is communicated with the dyeing process wastewater tank, and the reclaimed water treated by the dyeing process wastewater tank is communicated with the reclaimed water tank through a pipeline.
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| CN202222285313.9U CN218147359U (en) | 2022-08-25 | 2022-08-25 | Two-stage temperature-raising energy-saving device of high-temperature overflow dyeing machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222285313.9U CN218147359U (en) | 2022-08-25 | 2022-08-25 | Two-stage temperature-raising energy-saving device of high-temperature overflow dyeing machine |
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| CN218147359U true CN218147359U (en) | 2022-12-27 |
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| CN202222285313.9U Active CN218147359U (en) | 2022-08-25 | 2022-08-25 | Two-stage temperature-raising energy-saving device of high-temperature overflow dyeing machine |
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