CN113409164B - Water quality early warning processing method and device for open-circuit circulating water system - Google Patents
Water quality early warning processing method and device for open-circuit circulating water system Download PDFInfo
- Publication number
- CN113409164B CN113409164B CN202110951773.8A CN202110951773A CN113409164B CN 113409164 B CN113409164 B CN 113409164B CN 202110951773 A CN202110951773 A CN 202110951773A CN 113409164 B CN113409164 B CN 113409164B
- Authority
- CN
- China
- Prior art keywords
- water
- strand
- double
- early warning
- replenishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 577
- 238000003672 processing method Methods 0.000 title abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000013589 supplement Substances 0.000 claims description 66
- 230000001502 supplementing effect Effects 0.000 claims description 55
- 238000012545 processing Methods 0.000 claims description 15
- 230000000717 retained effect Effects 0.000 claims description 7
- 230000009469 supplementation Effects 0.000 claims description 6
- 238000004364 calculation method Methods 0.000 abstract description 32
- 230000008859 change Effects 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 230000001186 cumulative effect Effects 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 5
- 230000007774 longterm Effects 0.000 description 5
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 4
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 4
- 229910001424 calcium ion Inorganic materials 0.000 description 4
- 229910001425 magnesium ion Inorganic materials 0.000 description 4
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 4
- 150000003839 salts Chemical class 0.000 description 4
- 239000000498 cooling water Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000003899 bactericide agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q50/00—Information and communication technology [ICT] specially adapted for implementation of business processes of specific business sectors, e.g. utilities or tourism
- G06Q50/06—Energy or water supply
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/152—Water filtration
Landscapes
- Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Economics (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Primary Health Care (AREA)
- Human Resources & Organizations (AREA)
- Tourism & Hospitality (AREA)
- Public Health (AREA)
- General Business, Economics & Management (AREA)
- Marketing (AREA)
- Theoretical Computer Science (AREA)
- Strategic Management (AREA)
- Water Supply & Treatment (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Physical Water Treatments (AREA)
Abstract
The invention relates to a water quality early warning processing method and a device of an open-circuit circulating water system, when the water quality early warning occurs in the water system, a calculation method for respectively providing additional water replenishing quantity and water displacement for single-strand water replenishing and multi-strand water replenishing is carried out according to the early-warning water quality, particularly, for the condition of multi-strand water replenishing, the multi-strand water replenishing is virtualized into the condition of single-strand water replenishing, and the corresponding additional water replenishing quantity of the double-strand water replenishing is calculated by combining the proportion of the double-strand water replenishing. By the method, different early warning conditions can be accurately and quickly processed, dynamic adjustment calculation is simplified into static calculation, and design ideas are greatly simplified; and the real-time change of the additional water replenishing amount at the moment t is monitored, so that the water replenishing amount adjustment value is guided in real time, the treatment efficiency is improved, and the water quality safety of a water system is ensured.
Description
Technical Field
The invention relates to the technical field of industrial water management, in particular to a water quality early warning treatment method and device for an open-circuit circulating water system.
Background
The existing water system usually adopts a method of monitoring the water quality of circulating cooling water in an open-circuit circulating water system, so that the part of the circulating cooling water which does not meet the water quality requirement can be discharged out of the system in time, and simultaneously, supplementing water is added, and a water treatment agent (such as a corrosion inhibitor, a scale inhibitor and/or a bactericide and the like) is introduced into the circulating cooling water to avoid the problems.
And performing open-circuit circulating water replenishing water quality early warning according to material balance, and aiming at maintaining the long-term material balance of the system. When the open-circuit circulating water system generates water quality early warning, how to carry out quick and effective treatment according to the actual condition of the water system and guide the water system to carry out water replenishing and draining is a problem to be solved urgently in the field of industrial water management.
Disclosure of Invention
Based on the above situation in the prior art, the invention aims to provide a water quality early warning processing method and device for an open-circuit circulating water system, which are a calculation method for respectively providing additional water supply and water discharge for single-strand water supply and multi-strand water supply so as to accurately and quickly process different early warning conditions and further ensure the safety of the water system.
In order to achieve the above object, according to an aspect of the present invention, there is provided a water quality early warning processing method for an open circulating water system, comprising the steps of:
s1, judging whether the water system is single-strand water replenishing or double-strand water replenishing; if the water is single-stranded, executing S3; if the water replenishing is the double-strand water replenishing, executing S2;
s2, judging whether the content of the early warning water quality in the double-strand water supply is the same, if so, executing a step S3; if not, go to S4;
s3, calculating the extra water supplement amount X under the early warning1inShould additionally discharge X1out；
S4, virtualizing double-strand water replenishing into single-strand water replenishing, and calculating the additional water replenishing quantity X of the virtual single-strand water replenishing under the early warning2inShould additionally discharge X2out(ii) a According to the applicationAdditional water supplement amount X2inAnd respectively calculating the additional water quantity X of each strand in the double-strand water supply according to the double-strand water supply proportion21inAnd X22in。
Further, calculating the amount of additional water supply X under the early warning1inShould additionally discharge X1outThe method comprises the following steps:
wherein V is the water quantity retained by the water system, Y is the current value of the early warning water quality,
in order to warn the early warning limit value of the water quality,
the pre-warning water quality content in the single-strand water supply or the same pre-warning water quality content in the double-strand water supply is obtained.
Further, calculating the additional water supplement amount X of the virtual single-strand water supplement under the early warning2inShould additionally discharge X2outThe method comprises the following steps:
calculating the content Y of the early-warning water quality in the virtual single-strand water supplym2；
According to the content Ym2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2out。
Further, the content Y of the early warning water quality in the virtual single-strand water supply is calculatedm2The method comprises the following steps:
wherein, YmdThe water quality content, Y, in the first strand of the double-strand water supplymrThe water quality content, Q, in the second strand of the double-strand water supplymrsRecommended replenishment volume for the second supply, QmdsIs thatThe first recommended water replenishing amount.
Further, said content Y ism2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2outThe method comprises the following steps:
further, the water is additionally supplemented according to the requirement2inAnd respectively calculating the additional water quantity X of each strand in the double-strand water supply according to the double-strand water supply proportion21inAnd X22inThe method comprises the following steps:
wherein the proportion of the double water replenishing is
，
Additional water supplementation is required for the second strand of water supplementation,
additional water supplement is needed for the first stream of water supplement.
According to another aspect of the invention, the invention provides a water quality early warning treatment device of an open-circuit circulating water system, which comprises a water supplementing type distinguishing module, a single-strand water supplementing treatment module and a double-strand water supplementing treatment module; wherein,
the water supplementing type judging module is used for judging whether the water system is single-strand water supplementing or double-strand water supplementing and judging whether the content of the early warning water quality in the double-strand water supplementing is the same or not in the double-strand water supplementing;
the single-strand water supplement processing module is used for calculating the amount X of the extra water supplement under the early warning when the judgment result of the water supplement type judgment module is that the content of the early warning water quality is the same in single-strand water supplement or double-strand water supplement1inShould additionally discharge X1out；
The double-strand water supplementing processing module is used for virtualizing double-strand water supplementing into single-strand water supplementing when the judging result of the water supplementing type judging module is double-strand water supplementing and the content of the early-warning water quality is different, and calculating the additional water supplementing quantity X of the virtual single-strand water supplementing under the early warning2inShould additionally discharge X2out(ii) a According to the amount of the additional water supply X2inAnd respectively calculating the additional water quantity X of each strand in the double-strand water supply according to the double-strand water supply proportion21inAnd X22in。
Further, the single-strand water supplement processing module calculates the amount of extra water supplement X required under the early warning1inShould additionally discharge X1outThe method comprises the following steps:
wherein V is the water quantity retained by the water system, Y is the current value of the early warning water quality,
in order to warn the early warning limit value of the water quality,
the pre-warning water quality content in the single-strand water supply or the same pre-warning water quality content in the double-strand water supply is obtained.
Further, the double-strand water supplementing processing module calculates the additional water supplementing quantity X of the virtual single-strand water supplementing under the early warning2inShould additionally discharge X2outThe method comprises the following steps:
calculating the content Y of the early-warning water quality in the virtual single-strand water supplym2；
According to the content Ym2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2out。
Further, the proportion of the double-strand water replenishing is
Wherein
the recommended amount of make-up water for the second strand of make-up water,
and suggesting the water replenishing amount for the first water replenishing flow.
In summary, the invention provides a water quality early warning processing method and device for an open-circuit circulating water system, when water quality early warning occurs in the water system, according to the early-warning water quality, a calculation method for respectively providing additional water replenishing quantity and water displacement for single-strand water replenishing and multi-strand water replenishing is provided, particularly for the condition of multi-strand water replenishing, the multi-strand water replenishing is virtualized into single-strand water replenishing, and the respective additional water replenishing quantity of the double-strand water replenishing is calculated by combining double-strand water replenishing proportion. By the method, different early warning conditions can be accurately and quickly processed, dynamic adjustment calculation is simplified into static calculation, and design ideas are greatly simplified; and the real-time change of the additional water replenishing amount at the moment t is monitored, so that the water replenishing amount adjustment value is guided in real time, the treatment efficiency is improved, and the water quality safety of a water system is ensured.
The invention has the following beneficial technical effects:
(1) according to the early-warning water quality, a calculation method for respectively providing additional water supplement amount and water discharge amount aiming at single-strand water supplement and multi-strand water supplement is adopted, the early-warning treatment is targeted, and the precision of water supplement amount calculation is improved.
(2) Aiming at the condition of multi-strand water replenishing, the multi-strand water replenishing is virtualized into single-strand water replenishing, unified calculation is carried out according to the characteristics of the virtual single-strand water replenishing, and the calculation efficiency is improved.
(3) By monitoring the real-time change of the additional water supplement amount at the time t, the water supplement amount adjusting value is guided in real time, and the real-time performance of early warning processing is improved.
Drawings
FIG. 1 is a flow chart of a water quality early warning treatment method of an open-circuit circulating water system according to the present invention;
FIG. 2 is a block diagram showing the structure of a water quality warning treatment apparatus for an open-circuit circulating water system according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. According to a first embodiment of the present invention, a water quality early warning processing method for an open-loop circulating water system is provided, a flow chart of the method is shown in fig. 1, and the method comprises the following steps:
s1, judging whether the water system is single-strand water replenishing or double-strand water replenishing; if the water is single-stranded, executing S3; if the water replenishment is performed for two times, S2 is executed. In this step, whether the water system is single-strand water replenishment or double-strand water replenishment can be determined according to the setting of the water system. An open-circuit circulating water system is usually provided with water quality early warning monitoring, and early warning is given out when certain water quality exceeds the standard. The water quality early warning is usually performed according to the characteristic water quality in the circulating water, such as the content of one or more of salt, chloride ions, calcium ions, magnesium ions and sulfate radicals. In order to facilitate the actual operation, the extra water replenishing and draining operation which is required due to the over-standard water quality is set to be the same as the extra water draining amount, namely the current water retaining amount of the water system is not changed, namely the liquid level of the water tank is not changed. If the current liquid level is too low or too high, water supplementing or draining operation should be carried out according to a conventional recommended water supplementing ratio, and if single-strand water supplementing is carried out, water supplementing and draining operation is directly carried out. After the water replenishing or draining operation, the liquid level returns to a normal value. And if the liquid level returns to the normal value and the liquid level alarm is not caused at the moment, and the water quality still does not reach the standard, executing the water quality early warning treatment method.
S2, judging whether the content of the early warning water quality in the double-strand water supply is the same, if so, executing a step S3; if not, go to S4. Under the condition that the water system is double-strand water replenishing, when the early warning water quality of two strands of water is the same as the content of chloride ions, the double-strand water replenishing does not need to be virtualized to be single-strand water replenishing for calculation, because the content of the water quality in the mixed virtual single-strand water flow cannot be changed by any proportion under the condition, the double-strand water replenishing can be directly calculated according to the condition of single-strand water replenishing.
S3, calculating the extra water supplement amount X under the early warning1inShould additionally discharge X1out. The following formula can be adopted to calculate the amount X of the additional water supplement1inShould additionally discharge X1out：
Wherein V is the water retaining amount of the water system, and the water retaining amount V of the water system can be obtained by adding the water retaining amount of the cold water pool, the water retaining amount of the hot water pool and the water retaining amount in the pipeline. The water quantity retained in the cold water tank can be obtained by multiplying the liquid level value of the cold water tank by the sectional area of the cold water tank, the liquid level value of the cold water tank can be obtained by monitoring through a real-time instrument, and the sectional area of the cold water tank is a known set value. The water holding capacity of the hot water tank can be obtained by multiplying the level value of the hot water tank by the sectional area of the hot water tank, the level value of the hot water tank can be obtained by monitoring through a real-time instrument, and the sectional area of the hot water tank is a known set value. The amount of water held in the pipe is generally difficult to measure and can often be estimated by combining actual research with empirical values. Y is the current value of the early warning water quality in the water system,
for early warning the early warning limit value of the water quality, namely the early warning limit value of the early warning water quality corresponding to the water quantity retained in the water system,
and the early warning water quality content in the single strand of water is supplemented. And additionally supplementing water after the water quality early warning is generated, so that after water is supplemented and drained, the early-warning water quality of the circulating water system is reduced to an early-warning limit value from the current early-warning numerical value. According to the water quality balance, the water system before water supplement contains the substance content of the water quality V X Y, and the water system after water supplement contains the substance content of the water quality (V-X) Y + X Ym1The aim is to adjust the water quality to
The water system contains the substances with the water quality with the content of V x YrSo that the extra water supplement amount X required under the early warning water quality can be obtained according to the analysis1inShould additionally discharge X1out。
S4, virtualizing double-strand water replenishing into single-strand water replenishing, and calculating the additional water replenishing quantity X of the virtual single-strand water replenishing under the early warning2inShould additionally discharge X2out(ii) a According to the amount of the additional water supply X2inAnd respectively calculating the additional water quantity X of each strand in the double-strand water supply according to the double-strand water supply proportion21inAnd X22in. The single-strand water supplement can be recycled water supplement, primary desalted water supplement and other types of water supplements; the dual refill may be a combination of a reuse refill and a primary demineralized water refill and other types of refills. When the water system is double-strand water replenishing and the early warning water quality content is different, according to the existing water replenishing recommended value of the water system: e.g. a second recommended refill amount
And the first recommended water replenishing amount
The proportion of the water supplement suggested value under the condition of double water supplement can be obtained as
Combining the water quality in the first strand of the known double-strand water replenishingContent (wt.)
And the water quality content in the second strand of replenishing water
Then the double-strand water supplement can be virtualized into a single-strand water supplement to improve the efficiency and consistency of the calculation. Specifically, the calculation can be performed as follows:
calculating the content Y of the early-warning water quality in the virtual single-strand water supplym2；
According to the content Ym2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2out。
Wherein, the content Y of the early warning water quality in the virtual single-strand water supply is calculatedm2The following formula can be used for calculation:
wherein,
the water quality content in the first strand of the double-strand water replenishing,
the water quality content in the second strand of the double-strand water replenishing,
the recommended amount of make-up water for the second strand of make-up water,
and suggesting the water replenishing amount for the first water replenishing flow.
According to the content Ym2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2outThe following formula can be adoptedAnd (3) calculating:
further, according to the additional water supply quantity X2inAnd respectively calculating the additional water quantity X of each strand in the double-strand water supply according to the double-strand water supply proportion21inAnd X22inThe following formula can be used for calculation:
wherein the proportion of the double water replenishing is
，
The additional water supplement amount is needed for the second strand of water supplement,
the additional water supplement amount is needed for the first water supplement.
When the treatment method is applied to an actual water system, the calculation result of the additional water replenishing amount can be displayed in a monitoring system of the water system so as to guide the water replenishing operation. And, in order to realize real-time guidance of the adjustment value of the water supplement amount, the display may be dynamically changed. For example, the time when the calculation result is output is taken as the time starting point, and the cumulative value of the extra water supply amount and the actual water supply amount of the accumulated water supply amount are calculated from the time starting point to the time t after the time t. And for the double-strand water replenishing, respectively calculating the accumulated value of the respective extra water replenishing quantities of the two strands of water replenishing and the respective accumulated actual water replenishing quantities of the two strands of water replenishing. The cumulative value of the additional water supplement amount may be calculated by integration, that is, the additional water supplement amount calculated at each time point is integrated during the time period t. Or, in order to simplify the calculation, the calculated value of the water replenishing amount at the starting point of the timing can be taken and directly multiplied by the time t to obtain an approximate accumulated value. Then at time t, the displayed additional refill water amount should be: and (4) calculating the cumulative value of the extra water replenishing quantity within the time t + the actual water replenishing quantity accumulated within the time t. That is, the display changes with the accumulation of the actual amount of water replenishment, and has higher real-time performance. When t reaches a certain length, for example, t =24h, or the displayed additional water replenishing amount is less than or equal to 0, the above display is cancelled. Generally, if the water quality is still out of standard after 24 hours, a new calculation is made again to give a new suggested value for additional makeup water discharge.
According to some embodiments, water quality for water replenishment can also be monitored and early warned based on material balance. Calculating the instant coefficient A of the water quality of the water supplement and the long-term stability coefficient A0Comparing the two, if the ratio A/A0When the value is larger than the comparison threshold value, the water quality is considered to be normal, the instant coefficient A is stored in an array, and the long-term stability coefficient A is stored in an array0The update is the average of all the instantaneous coefficients a stored in the array. If the ratio A/A of the two is0And when the water quality is less than or equal to the comparison threshold, the water quality exceeds the standard, and early warning information is generated at the moment.
The immediate coefficient A of the water quality of the supplemented water can be calculated by the following formula:
wherein,
is the instant characteristic water quality content in the circulating water, comprises one or more of salt content, chloride ions, calcium ions, magnesium ions and sulfate radicals,
is the immediate water discharge of the water system,
the water quality is the instant water replenishing amount of a water system, and D is the instant characteristic water quality content in water replenishing, and comprises one or more of salt content, chloride ions, calcium ions, magnesium ions and sulfate radicals. Long term stability factor A0It may be set according to an empirical value, and the initial value may be set to, for example, 0.5. Coefficient of stability to long term A0When updating, in order to reduce the operation amount, the number n of the stored instant coefficients A in the array can be obtained, and A is adopted0*n/(n+1)+
A/(n +1) to obtain updated A0A in the formula is the value A obtained in updating
According to another embodiment of the present invention, a water quality pre-warning processing apparatus for an open-circuit circulating water system is provided, and a block diagram of the apparatus is shown in fig. 2, and the apparatus includes a water supplement type determination module, a single-strand water supplement processing module, and a double-strand water supplement processing module.
The water supplementing type judging module is used for judging whether the water system is single-strand water supplementing or double-strand water supplementing and judging whether the content of the early warning water quality in the double-strand water supplementing is the same or not when the double-strand water supplementing is carried out. The water quality early warning monitoring of the open-circuit circulating water system sends out early warning when certain water quality exceeds the standard. The water quality early warning is usually performed according to the characteristic water quality in the circulating water, such as the content of one or more of salt, chloride ions, calcium ions, magnesium ions and sulfate radicals. And the water supplementing type judging module judges the water supplementing mode of the water system at the moment when the water quality is early warned, and judges whether the water is single-strand water supplementing or double-strand water supplementing. Generally speaking, the single-strand refill water may be a reuse water refill water, a primary demineralized water refill water, or other types of refill water; the double refill may be a combination of a reuse water refill and a primary demineralized water refill or other types of refills.
The single-strand water supplement processing module is used for calculating the extra water supplement amount X under the early warning when the judgment result of the water supplement type judgment module is that the water quality content of the early warning is the same in single-strand water supplement or double-strand water supplement1inShould additionally discharge X1outThe following formula can be used for calculation:
wherein V is the water quantity retained by the water system, Y is the current value of the early warning water quality,
in order to warn the early warning limit value of the water quality,
the pre-warning water quality content in the single-strand water supply or the same pre-warning water quality content in the double-strand water supply is obtained.
The double-strand water supplementing processing module is used for virtualizing double-strand water supplementing into single-strand water supplementing when the discrimination result of the water supplementing type discrimination module is double-strand water supplementing and the content of early-warning water quality is different, and calculating the additional water supplementing quantity X of the virtual single-strand water supplementing under the early warning2inShould additionally discharge X2out：
Calculating the content Y of the early-warning water quality in the virtual single-strand water supplym2Wherein Y ism2The following formula can be used for calculation:
wherein,
the water quality content in the first strand of the double-strand water replenishing,
the water quality content in the second strand of the double-strand water replenishing,
the recommended amount of make-up water for the second strand of make-up water,
and suggesting the water replenishing amount for the first water replenishing flow.
According to the content Ym2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2outThe following formula can be used for calculation:
according to the amount of the additional water supply X2inAnd respectively calculating the additional water quantity X of each strand in the double-strand water supply according to the double-strand water supply proportion21inAnd X22in：
Wherein the proportion of the double water replenishing is
，
Additional water supplementation is required for the second strand of water supplementation,
additional water supplement is needed for the first stream of water supplement.
When the treatment device is applied to an actual water system, the calculation result of the additional water replenishing amount can be displayed in a monitoring system of the water system so as to guide the water replenishing operation. Therefore, the device can also comprise a display module for displaying the calculation result of the additional water supplement amount. For example, for a single refill, the amount of water to be additionally refilled may be displayed next to the actual refill amount and the conventional refill recommended value, and the amount of water to be additionally drained may be displayed next to the actual drain amount, so that the comparison may be performed during operation. For double water replenishing, the additional water replenishing quantity of the reuse water can be displayed beside the actual reuse water replenishing measurement and the conventional recommended value of the reuse water replenishing, and the additional water replenishing quantity of the primary desalted water can be displayed beside the actual primary desalted water replenishing measurement and the conventional recommended value of the primary desalted water replenishing, so that comparison is carried out during operation
And, in order to realize real-time guidance of the adjustment value of the water supplement amount, the display may be dynamically changed. For example, the time when the calculation result is output is taken as the time starting point, and the cumulative value of the extra water supply amount and the actual water supply amount of the accumulated water supply amount are calculated from the time starting point to the time t after the time t. And for the double-strand water replenishing, respectively calculating the accumulated value of the respective extra water replenishing quantities of the two strands of water replenishing and the respective accumulated actual water replenishing quantities of the two strands of water replenishing. The cumulative value of the additional water supplement amount may be calculated by integration, that is, the additional water supplement amount calculated at each time point is integrated during the time period t. Or, in order to simplify the calculation, the calculated value of the water replenishing amount at the starting point of the timing can be taken and directly multiplied by the time t to obtain an approximate accumulated value. Then at time t, the displayed additional refill water amount should be: and (4) calculating the cumulative value of the extra water replenishing quantity within the time t + the actual water replenishing quantity accumulated within the time t. That is, the display changes with the accumulation of the actual amount of water replenishment, and has higher real-time performance. When t reaches a certain length, for example, t =24h, or the displayed additional water replenishing amount is less than or equal to 0, the above display is cancelled. Generally, if the water quality is still out of standard after 24 hours, a new calculation is made again to give a new suggested value for additional makeup water discharge.
In summary, the invention relates to a water quality early warning processing method and device for an open-circuit circulating water system, and particularly relates to a calculation method for respectively providing additional water replenishing quantity and water displacement for single-strand water replenishing and multi-strand water replenishing according to early-warning water quality when a water system generates water quality early warning, particularly to a calculation method for virtualizing the multi-strand water replenishing into single-strand water replenishing according to the condition of the multi-strand water replenishing and calculating the respective additional water replenishing quantity of the double-strand water replenishing by combining double-strand water replenishing proportion. By the method, different early warning conditions can be accurately and quickly processed, dynamic adjustment calculation is simplified into static calculation, and design ideas are greatly simplified; and the real-time change of the additional water replenishing amount at the moment t is monitored, so that the water replenishing amount adjustment value is guided in real time, the treatment efficiency is improved, and the water quality safety of a water system is ensured.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (2)
1. A water quality early warning treatment method for an open-circuit circulating water system is characterized by comprising the following steps:
s1, judging whether the water system is single-strand water replenishing or double-strand water replenishing; if the water is single-stranded, executing S3; if the water replenishing is the double-strand water replenishing, executing S2;
s2, judging whether the contents of the early warning water quality in the double-strand water supply are the same, if so, executing a step S3; if not, go to S4;
s3, calculating the extra water supplement amount X under the early warning1inShould additionally discharge X1outThe method comprises the following steps:
wherein V is the water quantity retained by the water system, Y is the current value of the early warning water quality,
in order to warn the early warning limit value of the water quality,
the early warning water quality content in the single strand of the water supplement or the same early warning water quality content in the double strand of the water supplement;
s4, virtualizing double-strand water replenishing into single-strand water replenishing, and calculating the additional water replenishing quantity X of the virtual single-strand water replenishing under the early warning2inShould additionally discharge X2outThe method comprises the following steps: calculating the content Y of the early-warning water quality in the virtual single-strand water supplym2According to the content Ym2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2out；
Calculating the content Y of the early-warning water quality in the virtual single-strand water supplym2The method comprises the following steps:
wherein,
the water quality content is pre-warned in the first strand of water replenishing in the double strands of water replenishing,
the water quality content is pre-warned in the second strand of water replenishing of the double-strand water replenishing,
the recommended amount of make-up water for the second strand of make-up water,
suggesting a water replenishing amount for the first strand of water replenishing;
according to the content Ym2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2outThe method comprises the following steps:
according to the amount of the additional water supply X2inAnd respectively calculating the additional water quantity X of each strand in the double-strand water supply according to the double-strand water supply proportion21inAnd X22inThe method comprises the following steps:
wherein the proportion of the double water replenishing is
，
Additional water supplementation is required for the second strand of water supplementation,
additional water supplement is needed for the first stream of water supplement.
2. A water quality early warning processing device of an open-circuit circulating water system is characterized by comprising a water supplementing type distinguishing module, a single-strand water supplementing processing module and a double-strand water supplementing processing module; wherein,
the water supplementing type judging module is used for judging whether the water system is single-strand water supplementing or double-strand water supplementing and judging whether the contents of the early warning water quality in the double-strand water supplementing are the same or not during the double-strand water supplementing;
the single-strand water supplement processing module is used for calculating the amount X of the extra water supplement under the early warning when the judgment result of the water supplement type judgment module is that the content of the early warning water quality is the same in single-strand water supplement or double-strand water supplement1inShould additionally discharge X1outThe method comprises the following steps:
wherein V is the water quantity retained by the water system, Y is the current value of the early warning water quality,
in order to warn the early warning limit value of the water quality,
the early warning water quality content in the single strand of the water supplement or the same early warning water quality content in the double strand of the water supplement;
the double-strand water supplementing processing module is used for virtualizing double-strand water supplementing into single-strand water supplementing when the judging result of the water supplementing type judging module is double-strand water supplementing and the content of the early-warning water quality is different, and calculating the additional water supplementing quantity X of the virtual single-strand water supplementing under the early warning2inShould additionally discharge X2outThe method comprises the following steps:
calculating the content Y of the early-warning water quality in the virtual single-strand water supplym2；
According to the content Ym2Calculating the virtual single-strand water-supplementing extra water-supplementing quantity X under the early warning2inShould additionally discharge X2out；
According to the amount of the additional water supply X2inAnd respectively calculating the additional water quantity X of each strand in the double-strand water supply according to the double-strand water supply proportion21inAnd X22in，
Wherein the proportion of the double water replenishing is
，
Suggesting the amount of water for the second strand of water replenishing,
and suggesting the water replenishing amount for the first water replenishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110951773.8A CN113409164B (en) | 2021-08-19 | 2021-08-19 | Water quality early warning processing method and device for open-circuit circulating water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110951773.8A CN113409164B (en) | 2021-08-19 | 2021-08-19 | Water quality early warning processing method and device for open-circuit circulating water system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113409164A CN113409164A (en) | 2021-09-17 |
| CN113409164B true CN113409164B (en) | 2022-01-25 |
Family
ID=77688737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110951773.8A Active CN113409164B (en) | 2021-08-19 | 2021-08-19 | Water quality early warning processing method and device for open-circuit circulating water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113409164B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892864U (en) * | 2010-11-18 | 2011-07-06 | 金红玲 | System for controlling water quality of circulating water |
| CN103307928A (en) * | 2013-06-24 | 2013-09-18 | 神华集团有限责任公司 | Control method of open circulating water cooling system |
| CN106091797A (en) * | 2016-06-21 | 2016-11-09 | 中国神华能源股份有限公司 | Large Copacity circulating cooling water tower mends water discharge method and system |
| CN109377107A (en) * | 2018-12-06 | 2019-02-22 | 石化盈科信息技术有限责任公司 | A kind of optimization method of industry water multi-water resources system |
| CN111747561A (en) * | 2020-06-10 | 2020-10-09 | 华电电力科学研究院有限公司 | Automatic control system for water quality of high-level water collecting cooling tower of thermal power plant |
| CN112214044A (en) * | 2020-09-04 | 2021-01-12 | 华电电力科学研究院有限公司 | Circulating water automatic control system and method based on total amount control |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100018228A1 (en) * | 2006-06-07 | 2010-01-28 | Waters Hot, Inc. | Bio-renewable thermal energy heating and cooling system and method |
| CN100501300C (en) * | 2007-03-26 | 2009-06-17 | 任广兴 | Open industrial circulating-cooling water concentrating ratio and drug concentration balance control method |
| CN112484560B (en) * | 2020-10-20 | 2022-06-21 | 浙江中控技术股份有限公司 | Water-saving optimization method and system for industrial circulating water |
-
2021
- 2021-08-19 CN CN202110951773.8A patent/CN113409164B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201892864U (en) * | 2010-11-18 | 2011-07-06 | 金红玲 | System for controlling water quality of circulating water |
| CN103307928A (en) * | 2013-06-24 | 2013-09-18 | 神华集团有限责任公司 | Control method of open circulating water cooling system |
| CN106091797A (en) * | 2016-06-21 | 2016-11-09 | 中国神华能源股份有限公司 | Large Copacity circulating cooling water tower mends water discharge method and system |
| CN109377107A (en) * | 2018-12-06 | 2019-02-22 | 石化盈科信息技术有限责任公司 | A kind of optimization method of industry water multi-water resources system |
| CN111747561A (en) * | 2020-06-10 | 2020-10-09 | 华电电力科学研究院有限公司 | Automatic control system for water quality of high-level water collecting cooling tower of thermal power plant |
| CN112214044A (en) * | 2020-09-04 | 2021-01-12 | 华电电力科学研究院有限公司 | Circulating water automatic control system and method based on total amount control |
Non-Patent Citations (3)
| Title |
|---|
| The comparison of cooling effect between evaporative cooling method and inner water cooling method for the large hydro generator;Lin Ruan，and etc;《2007 International Conference on Electrical Machines and Systems (ICEMS)》;20071226;第989-992页 * |
| 多水源补水在循环水***的应用;高莹;《中外能源》;20201130;第25卷(第11期);第91-95页 * |
| 水处理专家***在钢铁企业循环水***中的应用;高康乐等;《中冶节能环保科技成果集》;20151231;第159-162页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113409164A (en) | 2021-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5699445B2 (en) | Water treatment chemical injection management method and apparatus for open circulation cooling water system | |
| ZA200608181B (en) | Control of cooling water system using rate of consumption of fluorescent polymer | |
| CN113409164B (en) | Water quality early warning processing method and device for open-circuit circulating water system | |
| CN110045759A (en) | Slag discharging furnace nose and zinc pot liquid level control method, system and liquid level detection device | |
| JP2011247447A (en) | Chemical feed control method and chemical feed control device | |
| JP6318074B2 (en) | Coolant liquid replenishment method and apparatus | |
| JP6683008B2 (en) | Water treatment system | |
| JP5498831B2 (en) | Cooling water quality measurement method, cooling water quality management method, and water treatment chemical injection method for cooling water | |
| JP4346102B2 (en) | Water quality measurement system | |
| JP3358523B2 (en) | Water treatment chemical concentration calculation method and automatic management method | |
| JP2014085091A (en) | Water quality management method and water quality management device of boiler water | |
| JP2002372396A (en) | Method and system for treating water of circulating cooling water system | |
| CN113803811A (en) | Control method for automatic water changing of evaporative condenser water tank | |
| JP5866992B2 (en) | Water quality management method for boiler can water | |
| JP4829636B2 (en) | Water circulation type compressor equipped with an evaluation device for residual treatment capacity of ion-exchanged deionizers | |
| JP6208723B2 (en) | Electric discharge machine with concentration detection function for rust preventives containing organic compounds | |
| US20220162091A1 (en) | Pure water manufacturing management system and pure water manufacturing management method | |
| WO2020155354A1 (en) | Humidifier and control method therefor, air conditioner, and storage medium | |
| CN112083704A (en) | Chemical plant control loop performance quantitative evaluation method and machine readable storage medium | |
| JP3646541B2 (en) | Hypochlorous acid concentration control method in electrolyzed water supply device | |
| KR101518640B1 (en) | Method for determining input flow of fresh acid in pickling process | |
| JPH06317393A (en) | Water quality control method for circulating cooling water in cooling tower | |
| CN113053071B (en) | Liquid leakage warning system, method, device, equipment and storage medium of water cooling system | |
| WO2022074814A1 (en) | Analysis system and management system, and analysis method and analysis program | |
| CN114774682B (en) | Pellet pelletizing equipment, pellet pelletizing control method and device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |