CN104785466A - Automatic online cleaning system and method of intelligent circulating cooling water heat exchanger - Google Patents
Automatic online cleaning system and method of intelligent circulating cooling water heat exchanger Download PDFInfo
- Publication number
- CN104785466A CN104785466A CN201510222844.5A CN201510222844A CN104785466A CN 104785466 A CN104785466 A CN 104785466A CN 201510222844 A CN201510222844 A CN 201510222844A CN 104785466 A CN104785466 A CN 104785466A
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- China
- Prior art keywords
- heat exchanger
- driven valve
- motor
- water inlet
- dirt discharge
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
- B08B3/02—Cleaning by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G2015/006—Arrangements for processing a cleaning fluid after use, e.g. filtering and recycling
Abstract
The invention provides an automatic online cleaning system of an intelligent circulating cooling water heat exchanger. The automatic online cleaning system comprises the heat exchanger, a centrifugal pump and a water storage tank which are connected in sequence through a pipeline to form a closed loop, a dirt discharge tank is arranged in the mode of being connected with the two ends of the water storage tank in parallel, a branch pipe is arranged on a pipe at the water inlet end of the heat exchanger, and connected with an air compressor, the dirt discharge tank is connected to an automatic ice machine, and a filter device is arranged in the dirt discharge tank. Temperature sensors, flowmeters and conductivity meters are arranged on the pipe at the water inlet end of the heat exchanger and a pipe at the water outlet end of the heat exchanger respectively, and all connected with a data collecting system, and the data collecting system is connected with a computer to transmit data signals of temperature transmitters, the flowmeters and the conductivity meters to the computer to be processed. The computer is connected with a control system, and the controls system is connected with the automatic ice machine and controls the automatic ice machine to be turned on and off. The automatic online cleaning system modified based on a traditional cooling system and a three-phase mixed liquid cleaning method matched with the system are utilized, and efficient and automatic online cleaning of the heat exchanger is achieved.
Description
Technical field
The present invention relates to a kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system and method.
Background technology
Heat exchanger is one of chemical industry, the widely used equipment of dynamic field, and its function makes heat be delivered to cold fluid from hot fluid, and circulating cooling water-to-water heat exchanger is indispensable equipment in the cooling system of modern industry production line
Fouling of heat exchangers is a kind of universal phenomenon, is also the problem needing solution badly simultaneously.In the design phase, choose the dirt resistance lower than actual dirt, after heat exchanger actual motion a period of time due to during design, occur that heat exchange is not enough, need to increase new heat exchanger and carry out parallel running, add investment, therefore heat exchanger is due to the often cleaning of fouling needs, and equipment maintenance cost increases.
Because dirt adds heat transfer resistance, reduce the heat transfer efficiency of heat exchanger, cause unnecessary energy resource consumption; The formation of schmutzband makes fluid resistance in heat exchanger increase, and overall heat-transfer coefficient can decline, and when it drops to a certain degree, heat exchanger can not meet industrial demand; Accumulation of dirt also can cause hot-spot to cause mechanical performance to decline, and local corrosion is even bored a hole, the safe operation of serious threat equipment.
The cleaning of current heat exchanger generally adopts the mode of taking the cleaning of heat exchanger off-line apart, but this just causes regular stop work and production, adds unnecessary labour intensity, causes maintenance cost and production suspension induced losses to significantly improve.There is the problem that device is complicated and cleaning performance is not good in a lot of physics, chemical on-line cleaning method now.Meanwhile, current cleaning is just for tube bank inwall or heat exchanger tube pass, and heat exchanger connected component does not process, and can affect heat exchanger heat transfer effect like this.
Summary of the invention
The present invention proposes a kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system and method, use the automatic on-line purging system come based on traditional Cooling System reformation and the three-phase cleaning method matched with it, realize efficient, the automatic on-line cleaning of heat exchanger, namely input cost and the operating cost of this system is reduced, solving off-line cleaning way causes periodical shut-downs stopping production to cause maintenance cost and production suspension induced losses to significantly improve, and adopt existing on-line cleaning system and device complicated, the problem that cleaning performance is not good.
The present invention realizes particular by following technical scheme:
A kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system, comprise heat exchanger, aqua storage tank, dirt discharge groove, automatic ice maker, air compressor and centrifugal pump, described heat exchanger, centrifugal pump, aqua storage tank are in turn connected to form closed-loop path by pipeline, the two ends of described aqua storage tank are installed in parallel a dirt discharge groove, the pipeline of the water inlet end of described heat exchanger is installed an arm, described arm is connected to air compressor, described dirt discharge groove is connected to automatic ice maker, is provided with filter in described dirt discharge groove; To be on the water inlet end of described heat exchanger and the pipeline of water side all mounting temperature sensor, flowmeter and conductivity meter, described temperature sensor, flowmeter and conductivity meter be connection data acquisition system all, described data collecting system connects computer and the data-signal of temperature transmitter, flowmeter and conductivity meter is transferred to computer disposal, described computer connection control system, described control system connects automatic ice maker and controls the switch of automatic ice maker.
Further, described air compressor, centrifugal pump connect the first frequency converter, the second frequency converter respectively, and described first frequency converter, the second frequency converter all connection control system, carry out gauge tap amount size by control system.
Further, the water inlet end of heat exchanger and the pipeline of water side distinguish mounting heat exchanger water inlet motor-driven valve, heat exchanger water outlet motor-driven valve; The water inlet end of described aqua storage tank and the pipeline of water side install aqua storage tank water inlet motor-driven valve, aqua storage tank water outlet motor-driven valve respectively; The water inlet end of described dirt discharge groove and the pipeline of water side install dirt discharge groove water inlet motor-driven valve, dirt discharge groove water outlet motor-driven valve respectively; Described arm is installed arm motor-driven valve;
Described arm motor-driven valve, heat exchanger water inlet motor-driven valve, heat exchanger water outlet motor-driven valve, aqua storage tank water inlet motor-driven valve, aqua storage tank water outlet motor-driven valve, dirt discharge groove water inlet motor-driven valve, dirt discharge groove water outlet motor-driven valve connect connection control system respectively, carry out gauge tap by control system.
Further, described computer is installed SD card memory module.
Further, described computer connects touch control screen.
A kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line cleaning method,
Under heat exchanger normal operating conditions, arm motor-driven valve, dirt discharge groove water inlet motor-driven valve, dirt discharge groove water outlet motor-driven valve are all in closed condition, and heat exchanger water inlet motor-driven valve, heat exchanger water outlet motor-driven valve, aqua storage tank water inlet motor-driven valve, aqua storage tank water outlet motor-driven valve are in opening;
By temperature sensor image data signal, by signal feedback to data collecting system, Signal transmissions is calculated fouling growth situation to Computer Analysis by data collecting system, and when the value calculated reaches setting value, computer sends instruction to control system operation command:
Close aqua storage tank water inlet motor-driven valve, aqua storage tank water outlet motor-driven valve, open dirt discharge groove water inlet motor-driven valve, dirt discharge groove water outlet motor-driven valve, start air compressor, open arm motor-driven valve; Automatic ice maker first adds the graininess trash ice containing scale remover in dirt discharge groove, after add graininess trash ice containing scale remover, open aqua storage tank water inlet motor-driven valve, aqua storage tank water outlet motor-driven valve, control the first frequency converter, the trash ice of the second frequency converter adjustment formation, the flow of gases at high pressure formation three-phase mixing cleaning fluid, the scale remover flowed out through heat exchanger flows into dirt discharge groove, and after the filter of dirt discharge groove, scale remover can be recycled.
The beneficial effect that the present invention produces is: the present invention is reasonable in design, easy to implement; Cleaning performance is remarkable, in particular improves the cleaning performance of heat exchanger tube sheet end face; Scavenging period obviously shortens, and can complete Fouling Cleaning and process in one day.Use simple equipment to achieve online three-phase cleaning, avoid the loss of stopping work and bringing, simultaneously simple than conventional physical cleaning structure, reliability, maintainability are better.Whole system Measurement & Control precision is high, has very strong self-regulation ability, to start-stop and the adjustment of equipment, can complete on computer touch-screen, easy and simple to handle, is conducive to increasing work efficiency and reducing operating cost, avoids the interference of human factor; To the Real-Time Monitoring that equipment runs, be conducive to the security of raising system; The temperature of the system in on-line cleaning process, flow, scale remover concentration in time and the real time data of the change of associated operating steps be all stored in SD card memory module, by the above mass data of timing acquisition, be conducive to the optimization realizing systems soft ware and intelligent control program and related algorithm, be conducive to the technique optimizing cleaning simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of purging system of the present invention;
Fig. 2 is the block diagram of control system of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
As shown in Figure 1 and 2, a kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system, comprise heat exchanger 1, aqua storage tank 2, dirt discharge groove 3, automatic ice maker 4, air compressor 5 and centrifugal pump 7, described heat exchanger 1, centrifugal pump 7, aqua storage tank 2 are in turn connected to form closed-loop path by pipeline, the two ends of described aqua storage tank 2 are installed in parallel a dirt discharge groove 3, the pipeline of the water inlet end of described heat exchanger 1 is installed an arm 19, described arm 19 is connected to air compressor 5, described dirt discharge groove 3 is connected to automatic ice maker 4, is provided with filter in described dirt discharge groove 3; To be on the water inlet end of described heat exchanger 1 and the pipeline of water side all mounting temperature sensor 11, flowmeter 10 and conductivity meter 9, described temperature sensor 11, flowmeter 10 and conductivity meter 9 all connection data acquisition systems 23, described data collecting system 23 connects computer 20 and the data-signal of temperature transmitter 11, flowmeter 10 and conductivity meter 9 is transferred to computer 20 and processes, described computer 20 connection control system 24, described control system 24 connects automatic ice maker 4 and controls the switch of automatic ice maker 4.
In the present embodiment, air compressor 5, centrifugal pump 7 connect the first frequency converter 6, second frequency converter 8 respectively, and described first frequency converter 6, second frequency converter 8 all connection control system 24, carry out gauge tap amount size by control system 24.The water inlet end of heat exchanger 1 and the pipeline of water side distinguish mounting heat exchanger water inlet motor-driven valve 12, heat exchanger water outlet motor-driven valve 13; The water inlet end of described aqua storage tank 2 and the pipeline of water side install aqua storage tank water inlet motor-driven valve 16, aqua storage tank water outlet motor-driven valve 15 respectively; The water inlet end of described dirt discharge groove 3 and the pipeline of water side install dirt discharge groove water inlet motor-driven valve 18, dirt discharge groove water outlet motor-driven valve 17 respectively; Described arm 19 installs arm motor-driven valve 14; Described arm motor-driven valve 14, heat exchanger water inlet motor-driven valve 12, heat exchanger water outlet motor-driven valve 13, aqua storage tank water inlet motor-driven valve 16, aqua storage tank water outlet motor-driven valve 15, dirt discharge groove water inlet motor-driven valve (18), dirt discharge groove water outlet motor-driven valve 17 connect connection control system 24 respectively, carry out gauge tap by control system 24.
Computer 20 of the present invention is installed SD card memory module 21, carry out data storing record, described computer 20 connects touch control screen 22, realizes touch control operation.
Under heat exchanger normal operating conditions, arm motor-driven valve 14, dirt discharge groove water inlet motor-driven valve 18, dirt discharge groove water outlet motor-driven valve 17 are all in closed condition, and heat exchanger water inlet motor-driven valve 12, heat exchanger water outlet motor-driven valve 13, aqua storage tank water inlet motor-driven valve 16, aqua storage tank water outlet motor-driven valve 15 are in opening;
By temperature sensor 11 image data signal, by signal feedback to data collecting system 23, Signal transmissions is obtained fouling growth situation to computer 20 analytical calculation by data collecting system 23, and when the value calculated reaches setting value, computer sends instruction to control system 24 operation command:
Close aqua storage tank water inlet motor-driven valve 16, aqua storage tank water outlet motor-driven valve 15, open dirt discharge groove water inlet motor-driven valve 18, dirt discharge groove water outlet motor-driven valve 17, start air compressor 5, open arm motor-driven valve 14; Automatic ice maker 4 first adds the graininess trash ice containing scale remover in dirt discharge groove 3, after add graininess trash ice containing scale remover, open aqua storage tank water inlet motor-driven valve 16, aqua storage tank water outlet motor-driven valve 15, control the flow that the first frequency converter 6, second frequency converter 8 regulates the trash ice of formation, gases at high pressure form three-phase mixing cleaning fluid, the scale remover flowed out through heat exchanger 1 flows into dirt discharge groove 4, and after the filter of dirt discharge groove 3, scale remover can be recycled.
In circulating cooling water-to-water heat exchanger running of the present invention, the real time data that control system obtains according to data collecting system is by the intelligent emergency response of the emergency case such as control system regulates compressed air, the flow of scale remover solidliquid mixture automatically, the switch of the start and stop of automatic ice maker and motor-driven valve realizes system cloud gray model automatic control and reply pipeline blockage.Native system uses the automatic on-line purging system come based on original Cooling System reformation and the three-phase cleaning method matched with it, realize the efficient on-line cleaning of heat exchanger, on the basis of Chemical cleaning, realize using the three-phase of the trash ice of certain particle size scope, gases at high pressure formation solid phase, liquid phase, gas phase to clean.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system, it is characterized in that, comprise heat exchanger (1), aqua storage tank (2), dirt discharge groove (3), automatic ice maker (4), air compressor (5) and centrifugal pump (7), described heat exchanger (1), centrifugal pump (7), aqua storage tank (2) is in turn connected to form closed-loop path by pipeline, the two ends of described aqua storage tank (2) are installed in parallel a dirt discharge groove (3), the pipeline of the water inlet end of described heat exchanger (1) is installed an arm (19), described arm (19) is connected to air compressor (5), described dirt discharge groove (3) is connected to automatic ice maker (4), described dirt discharge groove is provided with filter in (3), to be on the water inlet end of described heat exchanger (1) and the pipeline of water side all mounting temperature sensors (11), flowmeter (10) and conductivity meter (9), described temperature sensor (11), flowmeter (10) and conductivity meter (9) all connection data acquisition systems (23), described data collecting system (23) connects computer (20) by temperature transmitter (11), the data-signal of flowmeter (10) and conductivity meter (9) is transferred to computer (20) process, described computer (20) connection control system (24), described control system (24) connects automatic ice maker (4) and controls the switch of automatic ice maker (4).
2. a kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system as claimed in claim 1, it is characterized in that, described air compressor (5), centrifugal pump (7) connect the first frequency converter (6), the second frequency converter (8) respectively, described first frequency converter (6), the second frequency converter (8) all connection control system (24), carry out gauge tap amount size by control system (24).
3. a kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system as claimed in claim 1, it is characterized in that, the water inlet end of heat exchanger (1) and the pipeline of water side distinguish mounting heat exchanger water inlet motor-driven valve (12), heat exchanger water outlet motor-driven valve (13); The water inlet end of described aqua storage tank (2) and the pipeline of water side install aqua storage tank water inlet motor-driven valve (16), aqua storage tank water outlet motor-driven valve (15) respectively; The water inlet end of described dirt discharge groove (3) and the pipeline of water side install dirt discharge groove water inlet motor-driven valve (18), dirt discharge groove water outlet motor-driven valve (17) respectively; Described arm (19) is upper installs arm motor-driven valve (14);
Described arm motor-driven valve (14), heat exchanger water inlet motor-driven valve (12), heat exchanger water outlet motor-driven valve (13), aqua storage tank water inlet motor-driven valve (16), aqua storage tank water outlet motor-driven valve (15), dirt discharge groove water inlet motor-driven valve (18), dirt discharge groove water outlet motor-driven valve (17) connect connection control system (24) respectively, carry out gauge tap by control system (24).
4. a kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system as claimed in claim 1, is characterized in that, described computer (20) is upper installs SD card memory module (21).
5. a kind of intelligent circulating cooling water-to-water heat exchanger automatic on-line purging system as claimed in claim 1, is characterized in that, described computer (20) connects touch control screen (22).
6. an intelligent circulating cooling water-to-water heat exchanger automatic on-line cleaning method, is characterized in that,
Under heat exchanger normal operating conditions, arm motor-driven valve (14), dirt discharge groove water inlet motor-driven valve (18), dirt discharge groove water outlet motor-driven valve (17) are all in closed condition, and heat exchanger water inlet motor-driven valve (12), heat exchanger water outlet motor-driven valve (13), aqua storage tank water inlet motor-driven valve (16), aqua storage tank water outlet motor-driven valve (15) are in opening;
By temperature sensor (11) image data signal, by signal feedback to data collecting system (23), Signal transmissions is obtained fouling growth situation to computer (20) analytical calculation by data collecting system (23), when the value calculated reaches setting value, computer sends instruction to control system (24) operation command:
Close aqua storage tank water inlet motor-driven valve (16), aqua storage tank water outlet motor-driven valve (15), open dirt discharge groove water inlet motor-driven valve (18), dirt discharge groove water outlet motor-driven valve (17), start air compressor (5), open arm motor-driven valve (14); Automatic ice maker (4) first adds the graininess trash ice containing scale remover in dirt discharge groove (3), after add graininess trash ice containing scale remover, open aqua storage tank water inlet motor-driven valve (16), aqua storage tank water outlet motor-driven valve (15), control the first frequency converter (6), the trash ice of the second frequency converter (8) adjustment formation, the flow of gases at high pressure formation three-phase mixing cleaning fluid, the scale remover flowed out through heat exchanger (1) flows into dirt discharge groove (4), and after the filter of dirt discharge groove (3), scale remover can be recycled.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510222844.5A CN104785466B (en) | 2015-05-05 | 2015-05-05 | A kind of intelligent circulating cooling water- to-water heat exchanger automatic on-line purging system and method |
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| CN201510222844.5A CN104785466B (en) | 2015-05-05 | 2015-05-05 | A kind of intelligent circulating cooling water- to-water heat exchanger automatic on-line purging system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104864770A (en) * | 2015-05-27 | 2015-08-26 | 武汉工程大学 | Online cleaning system and method for circulating cooling water heat exchanger |
| CN105605965A (en) * | 2016-01-22 | 2016-05-25 | 武汉金惠科技有限公司 | Automatic online cleaning system and method for self-adapting circulating cooling water heat exchanger |
| CN106422493A (en) * | 2016-10-26 | 2017-02-22 | 广东高而美制冷设备有限公司 | Intelligent sewage system and sewage method |
| CN110132046A (en) * | 2018-02-09 | 2019-08-16 | 三菱日立电力系统株式会社 | Chemically-cleaning device and the chemical cleaning method for having used the chemically-cleaning device |
| CN112665256A (en) * | 2020-12-22 | 2021-04-16 | 苏州世伍克机电设备有限公司 | Ice machine energy-saving control system capable of automatically adding chemicals and removing scale and operation method thereof |
| CN114349241A (en) * | 2021-11-24 | 2022-04-15 | 国能朗新明环保科技有限公司 | Desulfurization wastewater treatment system |
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| CN114349241A (en) * | 2021-11-24 | 2022-04-15 | 国能朗新明环保科技有限公司 | Desulfurization wastewater treatment system |
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