CN215102547U - Circulating cooling water system - Google Patents
Circulating cooling water system Download PDFInfo
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- CN215102547U CN215102547U CN202121160830.2U CN202121160830U CN215102547U CN 215102547 U CN215102547 U CN 215102547U CN 202121160830 U CN202121160830 U CN 202121160830U CN 215102547 U CN215102547 U CN 215102547U
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- 239000000498 cooling water Substances 0.000 title claims abstract description 65
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 171
- 238000001816 cooling Methods 0.000 claims abstract description 55
- 230000003134 recirculating effect Effects 0.000 claims description 18
- 238000012544 monitoring process Methods 0.000 claims description 6
- 239000002699 waste material Substances 0.000 claims 3
- 230000000694 effects Effects 0.000 abstract description 17
- 230000009467 reduction Effects 0.000 abstract description 6
- 238000004134 energy conservation Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 22
- 230000008569 process Effects 0.000 description 18
- 239000010865 sewage Substances 0.000 description 10
- 239000003814 drug Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- 238000004364 calculation method Methods 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 4
- 230000007797 corrosion Effects 0.000 description 4
- 230000003020 moisturizing effect Effects 0.000 description 4
- 238000003908 quality control method Methods 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012372 quality testing Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000002848 electrochemical method Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 1
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 1
- 239000001095 magnesium carbonate Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model provides a circulating cooling water system, which comprises a cooling device, a heat exchange device, a circulating pump, an electrochemical device, a dosing device and a control module; the cooling equipment is connected with a water inlet of the circulating pump through a first pipeline; the water inlet of the heat exchange equipment is connected with the water outlet of the circulating pump through a second pipeline; the water outlet of the heat exchange equipment is connected with the cooling equipment through a third pipeline; the water inlet of the electrochemical device is connected with the second pipeline through a fourth pipeline; a water outlet of the electrochemical device is connected with the cooling equipment through a fifth pipeline; the dosing equipment is connected with the cooling equipment through a sixth pipeline; the electrochemical device and the dosing equipment are in signal connection with the control module. Through the synergistic effect of the electrochemical device and the dosing equipment, the water treatment effect is guaranteed to meet the water treatment requirement, energy conservation and emission reduction are realized, and the system maintenance and operation cost is reduced.
Description
Technical Field
The utility model relates to a water treatment technical field particularly, relates to a recirculating cooling water system.
Background
The circulating cooling water system generally refers to a water supply system including heat exchange equipment, cooling equipment, pipelines and other devices and using water as a cooling medium. In order to save water resources, cooling water is generally recycled.
In the running process of the circulating cooling water system, the aim of reducing the temperature is fulfilled by evaporating part of cooling water. The circulating water contains various salt substances besides pure water; in the running process of the circulating cooling water system, the evaporated cooling water is only pure water, so that salt originally dissolved in the evaporated pure water is continuously remained in the cooling water, and the concentration of the salt in the cooling water is gradually increased along with the running of the circulating cooling water system; when the concentration of the insoluble salt or the slightly soluble salt is more than the saturated concentration, the insoluble salt or the slightly soluble salt is crystallized and separated out, and scale is generated in the circulating cooling water system; if the scale in the circulating cooling water system is not effectively treated, the circulating cooling water system is difficult to normally operate.
In view of the above, the authors of the present application have finally obtained the present invention through long-term research and practice.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem be how to effectively administer the incrustation scale in the recirculating cooling water system.
In order to solve the problems, the utility model provides a circulating cooling water system, which comprises a cooling device, a heat exchange device, a circulating pump, an electrochemical device, a dosing device and a control module; wherein,
the cooling equipment is connected with a water inlet of the circulating pump through a first pipeline;
the water inlet of the heat exchange equipment is connected with the water outlet of the circulating pump through a second pipeline;
the water outlet of the heat exchange equipment is connected with the cooling equipment through a third pipeline;
the water inlet of the electrochemical device is connected with the second pipeline through a fourth pipeline;
a water outlet of the electrochemical device is connected with the cooling equipment through a fifth pipeline;
the dosing equipment is connected with the cooling equipment through a sixth pipeline;
the electrochemical device and the dosing equipment are in signal connection with the control module.
Optionally, the water quality control device is further included, a water inlet of the water quality control device is connected with the second pipeline through a seventh pipeline, and the water quality control device is in signal connection with the control module.
Optionally, a water outlet of the water quality controller is connected with the cooling device through an eighth pipeline.
Optionally, the heat exchanger further comprises a first temperature sensor arranged on the second pipeline, a second temperature sensor arranged on the heat exchanger, and a third temperature sensor arranged on the third pipeline; the first temperature sensor, the second temperature sensor and the third temperature sensor are in signal connection with the control module and the water quality controller.
Optionally, the control module comprises a remote monitoring system.
Optionally, the cooling apparatus comprises a cooling tower, and a reservoir disposed below the cooling tower; the first pipeline is connected with the reservoir; the third pipeline is connected with the cooling tower.
Optionally, the cooling device further comprises a sewage draining pipeline arranged at the bottom of the water storage tank, and a sewage draining valve is arranged on the sewage draining pipeline.
Optionally, the cooling device further comprises a water replenishing pipeline, and the water replenishing pipeline is connected with the water storage tank.
Optionally, the dosing device comprises a dosing tank and a dosing pump arranged on the sixth pipeline.
Compared with the prior art, the utility model provides a recirculating cooling water system has following advantage:
the utility model provides a recirculating cooling water system, synergistic effect through electrochemical device and dosing equipment, water treatment result to electrochemical device monitors, when water treatment result at electrochemical device can not satisfy the water treatment demand, throw corresponding water treatment medicament through dosing equipment and further strengthen the water treatment effect, thereby make electrochemical treatment process and traditional water treatment process combine together, when guaranteeing that water treatment effect satisfies the water treatment demand, the monitoring dynamics to electrochemical device has been promoted, the input of traditional water treatment medicament has been reduced, the displacement is reduced, when guaranteeing recirculating cooling water system normal operating, energy saving and emission reduction has been realized, the system maintenance operation cost is reduced.
Drawings
FIG. 1 is a schematic view of the process flow of the middle circulation cooling water system of the present invention.
Description of reference numerals:
1-a cooling device; 11-a first conduit; 12-a cooling tower; 13-a water reservoir; 14-a sewage draining pipeline; 141-a blowdown valve; 15-water supplement pipeline; 2-heat exchange equipment; 21-a second pipeline; 22-a third line; 3-a circulating pump; 4-an electrochemical device; 41-fourth line; 42-a fifth pipeline; 5-dosing equipment; 51-sixth line; 52-medicine adding pot; 53-dosing pump; 6-water quality controller; 61-a seventh conduit; 62-eighth conduit; 7-a first temperature sensor; 8-a second temperature sensor; 9-third temperature sensor.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention, and all other embodiments obtained by those skilled in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "circumferential", "radial", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for the purpose of simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first" and "second" are used merely to simplify the description and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present disclosure, unless otherwise expressly stated or limited, a first feature "on" or "under" a first feature may comprise the first feature and a second feature in direct contact, or may comprise the first feature and the second feature not in direct contact but in contact with each other through another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "below," and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or merely indicates that the first feature is at a lower level than the second feature.
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In order to reduce scale formation in the operation process of a circulating cooling water system, the traditional treatment method is to add water treatment agents such as scale inhibitor, dispersant and the like into the circulating cooling water system through dosing equipment; however, the addition of the water treatment agent not only has higher water treatment cost, but also is easy to cause secondary pollution if the addition amount of the water treatment agent is larger; in recent years, with the increasing requirements on environmental protection, energy conservation and emission reduction, a technology for treating a circulating water cooling system by an electrochemical method appears; however, the current electrochemical treatment method cannot monitor the electrochemical treatment effect, and when the electrochemical treatment effect is not good, the electrochemical treatment effect is difficult to correct, so that the scale in the circulating cooling water system cannot be effectively treated.
In order to effectively treat water scale in the circulating cooling water system, the utility model provides a circulating cooling water system, as shown in figure 1, the circulating cooling water system comprises a cooling device 1 for cooling circulating cooling water, a heat exchange device 2 for exchanging heat, a circulating pump 3 for conveying circulating cooling water, an electrochemical device 4 for electrochemically treating circulating cooling water, a dosing device 5 for dosing water treatment agent into the circulating cooling water system and a control module; wherein, the cooling device 1 is connected with the water inlet of the circulating pump 3 through a first pipeline 11; a water inlet of the heat exchange device 2 is connected with a water outlet of the circulating pump 3 through a second pipeline 21; the water outlet of the heat exchange device 2 is connected with the cooling device 1 through a third pipeline 22; the water inlet of the electrochemical device 4 is connected with the second pipeline 21 through a fourth pipeline 41; the water outlet of the electrochemical device 4 is connected with the cooling device 1 through a fifth pipeline 42; the dosing device 5 is connected with the cooling device 1 through a sixth pipeline 51; the electrochemical device 4 and the dosing equipment 5 are in signal connection with the control module.
In the working process of the circulating cooling water system, circulating water cooled by the cooling equipment 1 is conveyed to the heat exchange equipment 2 through the circulating pump 3, and the circulating water is used as a cooling medium in the heat exchange equipment 2 and exchanges heat with another working medium passing through the heat exchange equipment 2; in the heat exchange process, a part of pure water in the circulating water is evaporated and consumed, and the temperature of the rest circulating water is increased; the circulating water with the increased temperature is conveyed to the cooling device 1 through the third pipeline 22, and is cooled by the cooling device 1 and then conveyed to the heat exchange device 2 through the circulating pump 3, so that the circulating water is recycled, and the recycling of the circulating water is realized.
In order to facilitate the treatment of the scale in the circulating cooling water system, the electrochemical device 4 is connected into the system in a bypass mode; specifically, circulating water is conveyed to the heat exchange equipment 2 through a second pipeline 21 under the action of a circulating pump 3; the water inlet of the electrochemical device 4 is connected with the second pipeline 22 through a fourth pipeline 41, so that a part of circulating water output from the water outlet of the circulating pump 3 enters the electrochemical device 4, and the electrochemical device 4 is used for performing electrochemical treatment on the circulating water, so that scale in the circulating water can be removed, and the water quality of the circulating water can be controlled; the electrochemical device 4 may be any electrochemical device suitable for descaling circulating water in any structure form in the prior art, and the specific structure and form of the electrochemical device 4 are not limited in the present application.
Further, for guaranteeing the treatment effect to the circulating water, the recirculated cooling water system that this application provided still includes charge equipment 5 to in handling the back through electrochemical device 4, if the quality of water of circulating water can not satisfy the quality of water requirement, further add water treatment medicament through charge equipment 5 to recirculated cooling water system, improve water treatment effect.
In order to improve the automation degree of the operation of the circulating cooling water system, the circulating cooling water system further comprises a control module, and the control module can be a PLC control system; and the control module is in signal connection with the electrochemical device 4 and the dosing device 5, so that in the operation process, the water treatment result of the electrochemical device 4 is obtained through the control module, and the operation of the electrochemical device 4 and the dosing device 5 is controlled according to the water treatment result.
Specifically, in the running process of the circulating cooling water system, firstly, circulating water is treated by the electrochemical device 4, and the treatment result is sent to the control module; the control module judges whether the risk of scale occurrence exists in the circulating water cooling system according to the processing result; if the risk of scale is judged to be absent, the electrochemical device 4 still operates according to the original mode, and the dosing equipment 5 does not operate; if the risk of scale occurrence is judged, the dosing equipment 5 is controlled to dose water treatment agent into the system, and the water treatment effect is further enhanced through the water treatment agent, so that the occurrence and deposition of scale are avoided or slowed down, the normal operation of the circulating cooling water system is ensured, and the service life of each equipment in the circulating cooling water system is prolonged; the type and the dosage of the water treatment agent added by the dosing device 5 can be determined according to the water treatment result of water quality, and the content of the part is not limited in the application.
The utility model provides a recirculating cooling water system, through electrochemical device 4 and the synergism of charge equipment 5, water treatment result to electrochemical device 4 monitors, when water treatment result at electrochemical device 4 can not satisfy the water treatment demand, throw corresponding water treatment medicament through charge equipment 5 and further strengthen the water treatment effect, thereby make electrochemical treatment process and traditional water treatment process combine together, when guaranteeing that water treatment effect satisfies the water treatment demand, the monitoring dynamics to electrochemical device 4 has been promoted, the input volume of traditional water treatment medicament has been reduced, the displacement has been reduced, when guaranteeing recirculating cooling water system normal operating, energy saving and emission reduction has been realized, system maintenance operation cost has been reduced.
In order to facilitate monitoring of the water treatment effect of the electrochemical treatment device 4, water quality needs to be detected; the detection process can be realized in a mode of manual periodic detection; in order to realize real-time detection of water quality, improve the accuracy of a detection result and improve the detection efficiency, the circulating cooling water system preferably further comprises a water quality controller 6, so that the water quality of circulating water can be detected in real time through the water quality controller 6; the water quality controller 6 can select the existing water quality control detection equipment with any structure form; this water quality controller 6's water inlet is preferred in this application to link to each other with second pipeline 21 through seventh pipeline 61, and water quality controller 6 and control module signal connection.
Through linking to each other water quality controller 6 with control module to acquire water quality controller 6's real-time water quality testing result through control module, thereby come in time to control electrochemical device 4 and medicine equipment 5's operation according to this water quality testing result.
The delivery port of the preferred water quality controller 6 of this application links to each other with cooling arrangement 1 through eighth pipeline 62 to in making the quality of water after detecting to flow back to recirculating cooling water system, avoid extravagant.
Wherein, the detection index of the water quality controller 6 can be any index parameter capable of reflecting the use effect of the electrochemical device 4; for example, the water quality controller 6 can use two data of langelier index l.s.i and stability index r.s.i to determine the effect of the electrochemical device 4; the judgment standard of the Langerial index is as follows:
fouling at pH-pHs > 0;
the L.S.I-pH-pHs-0 does not corrode and scale;
l.s.i. pH-pHs <0 corrosion;
wherein pHs is (9.70+ a + B) - (C + D);
wherein, A is the total dissolved solid coefficient; b-temperature coefficient; c-calcium hardness coefficient; D-M-basicity coefficient;
the control index range of the Langerial index in the optimal operation process is 0-2;
the criteria for the stability index are as follows:
fouling with r.s.i 2pHs-Ph < 6;
the R.S.I is 2pHs-Ph is 6, and the corrosion and the scaling are avoided;
(ii) r.s.i 2pHs-Ph >6 corrosion;
the control index range of the stability index in the optimal operation process is 4-6.
In the present application, preferably, both the langelier index and the stability index can be directly obtained by the water quality controller 6, and the obtained langelier index and the stability index are transmitted to the control module; the control module compares the acquired Langerial index and the stability index with a preset standard numerical value, judges whether a scaling risk exists in the circulating cooling water system according to a comparison result, and controls the operation of the electrochemical device 4 and the dosing equipment 5 according to the scaling risk if the scaling risk is judged.
When the judgment is carried out, the judgment standard can be set to be that at least one of the Langerial index and the stability index meets the condition with the scaling risk, namely the scaling risk is judged; the determination criterion may be set such that the langelier index and the stability index satisfy the condition of having the risk of fouling at the same time, and it can be determined that there is the risk of fouling.
The application can also judge the using effect of the electrochemical device 4 through fouling thermal resistance and adhesion rate; the judgment standards of the fouling heat resistance and the adhesion rate are as follows:
fouling resistance 3.450 x 10-4m2·C/W；
Adhesion rate 3.0000mg/cm2·d；
When it is detected that the fouling resistance and the adhesion rate of the recirculating cooling water system exceed the above-mentioned standards, the chemical adding device 5 is activated so as to lower the fouling resistance data by adding the water-treating chemical.
The calculation method of the fouling thermal resistance comprises the following steps:
in the running process of the circulating cooling water system, along with the deposition of dirt on the water side of the heat exchange equipment 2, the heat exchange efficiency is gradually reduced, and the temperature difference at the inlet and the outlet is reflected to be reduced; if the water temperature at the inlet and the outlet is controlled to be constant, the flow is constant, and the steam temperature is constant, the instantaneous fouling thermal resistance can be calculated by the following formula:
1. calculation of clean tube thermal resistance
R0 ═ [ (D × L)/(2G × Cp) ] [ (2T-T 'out-T' in)/(T 'out-T' in) ], 3600-formula 1
R0-clean tube thermal resistance: m is2.k/w；
And the temperatures of the circulating water outlet and the circulating water inlet when t 'is discharged and t' is introduced into the cleaning pipe are as follows: DEG C;
g-flow of circulating water: kg/h;
d, the inner diameter of the heat exchange tube: m;
l-effective length of heat exchange tube: m;
cp-constant pressure specific heat of circulating water: 4186.8J/Kg. ℃;
t-temperature of the material: DEG C;
for example, the heat exchange tube internal diameter is 0.0075m, and heat exchange tube effective length 1.177m, circulating water constant pressure specific heat: 4186.8 coke/Kg. ℃, the flow rate of circulating water is 1908Kg/h, t 'is 42 ℃, t' is 32 ℃, and the temperature of steam is 100 ℃, and then the method is substituted into the formula 1 to obtain the product:
R0＝0.000024948m2.k/w＝2.4948×10-4m2.k/w；
2. calculation of instantaneous thermal resistance
Rf ═ [ (D × L)/(2G × Cp) ] [ (2T-T out-T in)/(T out-T in) ], 3600-formula 2
Rf-instantaneous thermal resistance (Total thermal resistance): m is2.k/w；
t out, t in-instantaneous circulating water outlet and inlet temperatures: DEG C;
g-flow of circulating water: kg/h;
d, the inner diameter of the heat exchange tube: m;
l-effective length of heat exchange tube: m;
cp-constant pressure specific heat of circulating water: 4186.8J/Kg. ℃;
t-temperature of the material: DEG C;
3. calculation of instantaneous fouling thermal resistance
R — Rf-R0-formula 3;
r — instantaneous fouling thermal resistance: m is2.k/w。
The adhesion rate was calculated as follows:
the adhesion rate ═ time (fouling thermal resistance value x fouling thermal conductivity x fouling density)/formula 4;
unit: thermal resistance of dirt-m2.k/w；
Fouling thermal conductivity-w/m.k;
soil density-kg/m3；
Time; d;
adhesion rate: kg/m2.d。
The final display of the preferred rate of adhesion herein is in mg/cm2D is a unit, the conversion relation is: 1kg/m2.d＝1×102mg/cm2.d。
Wherein the dirt thermal conductivity and the dirt density can be input by a user, and if the user does not input, the reference values are as follows:
fouling thermal conductivity default: 0.62w/m.k (in terms of calcium and magnesium carbonate scale);
dirt density default value:1.3×103kg/m3；
instantaneous fouling thermal resistance R, adhesion rate and the like can be calculated and displayed at regular time by an intelligent instrument, and a 4-20mA current signal is output and uploaded to a DCS.
In order to realize the calculation of the correlation index, a circulating cooling water system can comprise corresponding detection elements such as a pH detection instrument and the like; the preferred circulating cooling water system of the application also comprises a first temperature sensor 7 arranged on the second pipeline 21, a second temperature sensor 8 arranged on the heat exchange equipment 2 and a third temperature sensor 9 arranged on the third pipeline 22; the first temperature sensor 7, the second temperature sensor 8 and the third temperature sensor 9 are in signal connection with the control module and the water quality controller 6.
Wherein, obtain the entry temperature of circulating water in the indirect heating equipment 2 through first temperature sensor 7, obtain the material temperature who treats the cooling in the indirect heating equipment 2 through second temperature sensor 8, obtain the exit temperature of circulating water in the indirect heating equipment 2 through third temperature sensor 9, and further make first temperature sensor 7, second temperature sensor 8 and third temperature sensor 9 all with control module and water quality controller 6 signal connection, thereby be convenient for carry control module and water quality controller 6 with the temperature that above-mentioned three temperature sensor detected, further carry out corresponding calculation to the index that the aforesaid was mentioned according to the temperature that detects again.
The further preferred control module of this application includes distal end monitored control system to be convenient for come to show each index and the index that detects etc. through distal end monitored control system, and then can be when recirculating cooling water system operation appears unusually, provide warning and information feedback for operating personnel in real time, make operating personnel can in time intervene recirculating cooling water system.
The heat exchange equipment 2 is preferably a heat exchanger; and further preferably, the cooling device 1 comprises a cooling tower 12 and a reservoir 13 arranged below the cooling tower 12, and the cooling tower 12 is connected with the reservoir 13; wherein the third pipeline 22 is connected with the cooling tower 12 so as to convey the circulating water flowing out of the water outlet of the heat exchange device 2 to the cooling tower 12 through the third pipeline 22, the cooling tower 12 is used for cooling the circulating water after temperature rise, the cooled circulating water enters the water storage tank 13, the first pipeline 11 is connected with the water storage tank 13 and is acted by the circulating pump 3 so as to recycle the circulating water in the water storage tank 13.
The cooling device 1 preferably further comprises a sewage draining pipeline 14 disposed at the bottom of the water reservoir 13, and a sewage draining valve 141 is disposed on the sewage draining pipeline 14, so that water in the water reservoir 13 can be drained through the sewage draining pipeline 14 and the sewage draining valve 141 disposed on the sewage draining pipeline 14 for replacement or the like.
Because the circulating water can have certain loss at the operation in-process, for guaranteeing the smooth operation of system, cooling arrangement 1 in this application still includes moisturizing pipeline 15, and this moisturizing pipeline 15 links to each other with cistern 13 to regular or continuous moisturizing is in to the recirculating cooling water system through this moisturizing pipeline 15.
The circulating cooling water system provided by the application forms a complete circulating cooling water treatment process kit through the electrochemical device 4, the dosing equipment 5, the remote monitoring system, the temperature sensor, the water quality controller 6 and other equipment, and through the use of the process kit, the water treatment effect is guaranteed, meanwhile, the energy conservation and emission reduction are realized, and the energy consumption is reduced; specifically, according to the circulating cooling water system provided by the application, when the system detects that the fouling thermal resistance exceeds the standard, the device automatically starts the dosing equipment 5 to reduce fouling thermal resistance data, and meanwhile, the electrochemical device 4 with a definite plate making can be selected, and the balance of salt in water is adjusted by controlling the Langerlite index (L.S.I) and the stability index (R.S.I) of the water body, so that the purposes of controlling scaling, corrosion and sterilization are achieved; the concentration multiple of the system is improved from 2-3 times to about 20 times or even 40 times, so that the water discharge of the system is greatly reduced or even not discharged, the water saving amount can reach about 50-100%, and the energy saving and emission reduction effects of the system are achieved.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (9)
1. A circulating cooling water system is characterized by comprising cooling equipment (1), heat exchange equipment (2), a circulating pump (3), an electrochemical device (4), dosing equipment (5) and a control module; wherein,
the cooling equipment (1) is connected with a water inlet of the circulating pump (3) through a first pipeline (11);
a water inlet of the heat exchange device (2) is connected with a water outlet of the circulating pump (3) through a second pipeline (21);
the water outlet of the heat exchange device (2) is connected with the cooling device (1) through a third pipeline (22);
the water inlet of the electrochemical device (4) is connected with the second pipeline (21) through a fourth pipeline (41);
the water outlet of the electrochemical device (4) is connected with the cooling equipment (1) through a fifth pipeline (42);
the dosing device (5) is connected with the cooling device (1) through a sixth pipeline (51);
the electrochemical device (4) and the dosing equipment (5) are in signal connection with the control module.
2. The recirculating cooling water system as claimed in claim 1, further comprising a water quality controller (6), wherein the water inlet of the water quality controller (6) is connected to the second pipeline (21) via a seventh pipeline (61), and the water quality controller (6) is in signal connection with the control module.
3. A recirculating cooling water system as claimed in claim 2, wherein the water outlet of the water quality controller (6) is connected to the cooling apparatus (1) via an eighth line (62).
4. A circulating cooling water system according to claim 2, further comprising a first temperature sensor (7) arranged on the second line (21), a second temperature sensor (8) arranged on the heat exchanging device (2) and a third temperature sensor (9) arranged on the third line (22); the first temperature sensor (7), the second temperature sensor (8) and the third temperature sensor (9) are in signal connection with the control module and the water quality controller (6).
5. The recirculating cooling water system of claim 4, wherein the control module includes a remote monitoring system.
6. A circulating cooling water system as claimed in any one of claims 1 to 5, characterized in that the cooling apparatus (1) comprises a cooling tower (12), and a reservoir (13) arranged below the cooling tower (12); the first pipeline (11) is connected with the reservoir (13); the third pipeline (22) is connected with the cooling tower (12).
7. A recirculating cooling water system according to claim 6, wherein the cooling device (1) further comprises a waste pipe (14) arranged at the bottom of the reservoir (13), the waste pipe (14) being provided with a waste valve (141).
8. A recirculating cooling water system according to claim 6, wherein the cooling device (1) further comprises a water replenishing line (15), the water replenishing line (15) being connected to the reservoir (13).
9. The recirculating cooling water system as claimed in claim 6, wherein the dosing device (5) comprises a dosing tank (52) and a dosing pump (53) arranged on the sixth line (51).
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| CN202121160830.2U CN215102547U (en) | 2021-05-27 | 2021-05-27 | Circulating cooling water system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140850A (en) * | 2022-07-01 | 2022-10-04 | 北京恒动环境技术有限公司 | Circulating cooling water descaling system and method |
| CN115583715A (en) * | 2022-12-08 | 2023-01-10 | 浙江浙能技术研究院有限公司 | Heat-engine plant cooling water bactericide adding system and operation method |
-
2021
- 2021-05-27 CN CN202121160830.2U patent/CN215102547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140850A (en) * | 2022-07-01 | 2022-10-04 | 北京恒动环境技术有限公司 | Circulating cooling water descaling system and method |
| CN115583715A (en) * | 2022-12-08 | 2023-01-10 | 浙江浙能技术研究院有限公司 | Heat-engine plant cooling water bactericide adding system and operation method |
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