CN103034251A - Debugging method of static balance valve - Google Patents
Debugging method of static balance valve Download PDFInfo
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- CN103034251A CN103034251A CN2012105192028A CN201210519202A CN103034251A CN 103034251 A CN103034251 A CN 103034251A CN 2012105192028 A CN2012105192028 A CN 2012105192028A CN 201210519202 A CN201210519202 A CN 201210519202A CN 103034251 A CN103034251 A CN 103034251A
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Abstract
The invention provides a debugging method of a static balance valve and belongs to the technical field of hydraulic systems. The debugging method of the static balance valve solves the problems that the prior static balance valve is low in debugging efficiency and the like, and comprises the following steps: A selecting a maximum flow ratio stand pipe; B selecting a maximum flow ratio branch pipe; C selecting a minimum flow ratio terminal unit; D adjusting a terminal balance valve on terminal unit; E adjusting terminal balance valves on all terminal units on the maximum flow ratio stand pipe; F adjusting branch balance valves of all branch pipes on the maximum flow ratio stand pipe; G adjusting stand balance valves of all stand pipes; repeting the steps mentioned above and finally adjusting the flow ratio of a main balance valve of the hydraulic system to be one, flow ratios of all other balance valves are accordingly to be one. The debugging method of the static balance valve has the advantages of being high in debugging success rate, debugging efficiency and the like.
Description
Technical field
The invention belongs to the Hydraulic Power System technical field, relate to a kind of adjustment method of static balancing valve.
Background technology
Static balancing valve also claims equalizing valve, manual equalizing valve, digital locked balance valve, dibit variable valve etc., it is by changing the gap (aperture) of spool and valve seat, change the resistance to flow of the valve of flowing through to reach the purpose of adjust flux, its effective object is the resistance of system, static balancing valve can distribute the new water yield according to the design-calculated proportional balancing method, each branch road is in proportion increase and decrease simultaneously, can satisfy the traffic demand of the sub-load under the preclimax needs, play thermally equilibrated effect.
Because the good control characteristic of static balancing valve, cheap, it has been widely used in various Hydraulic Power Systems.But along with the extensive utilization of static balancing valve, its shortcoming also exposes gradually, at first be static balancing valve can't accomplish dynamic balance valve effect, occur when the pipeline Hydraulic Power System can't automatically adjust in the situation of fluctuation.At system stability, static balancing valve can farthest be brought into play its value in few situation that fluctuates, such as being used in northern central heating system; Next static balancing valve debugging problem in the utilization process, general Hydraulic Power System has a plurality of branch circuit parallel connections and forms, each branch road is introduced current from a house steward porch, then get back to total arm exit, the debugging of static balancing valve is a very complicated job always in the pipe system of complexity, often need repeatedly repeatedly to debug, cause a large amount of heating power and the waste of material resources.
Summary of the invention
The objective of the invention is for the above-mentioned problems in the prior art, provide a kind of simple to operate, the adjustment method of the static balancing valve that debugging success ratio height and debugging efficiency are high.
Purpose of the present invention can realize by following technical proposal: a kind of adjustment method of static balancing valve, it is characterized in that, and this method may further comprise the steps:
Steps A, choose the standpipe of maximum flow ratio:
The all equalizing valve of standard-sized sheet, autovalve, often drive shut-off valve, adjust main equalizing valve, the control pump capacity, determine the design discharge of all standpipes, measure the actual flow of all standpipes, and calculate the throughput ratio of every standpipe: throughput ratio=actual flow/design discharge, choose the standpipe of maximum flow ratio;
Step B, choose the arm of maximum flow ratio:
Determine the design discharge of all arms on the selected standpipe, measure the actual flow of all arms on the selected standpipe, and calculate the throughput ratio of every arm: throughput ratio=actual flow/design discharge, choose the arm of maximum flow ratio;
Step C, choose the end equipment of minimum flow ratio:
Equalizing valve standard-sized sheet on the selected arm, determine the design discharge of all end equipments on the selected arm, measure the actual flow of all end equipments on the selected arm, calculate the throughput ratio of each end equipment: throughput ratio=actual flow/design discharge, choose minimum flow and compare λ
MinEnd equipment be comparable device;
Terminal equalizing valve on step D, the adjusting end equipment:
Regulate the terminal equalizing valve on the selected end equipment, make the throughput ratio λ of selected terminal equalizing valve=λ
Min, the connecting test instrument is tested, and take this end equalizing valve as with reference to valve, regulates successively the terminal equalizing valve on each end equipment on the selected arm, and the throughput ratio of the terminal equalizing valve of each end equipment on the selected arm that makes all equates;
Step e, regulate the terminal equalizing valve on all end equipments on the standpipe with maximum flow ratio:
On selected standpipe, choose successively the remaining arm with maximum flow ratio, repeat above-mentioned step C and step D, the throughput ratio of the terminal equalizing valve of each end equipment on the same arm is all equated;
Step F, regulate an equalizing valve of all arms on the standpipe with maximum flow ratio:
Adopt the method identical with step D with step C, the throughput ratio of an equalizing valve of each arm on the selected standpipe that makes all equates;
Step G, regulate the vertical equalizing valve of all standpipes
Vertical equalizing valve standard-sized sheet on all standpipes adopts the method identical with step D with step C, and the throughput ratio of the vertical equalizing valve on all standpipes that make all equates;
Repeat above-mentioned steps, regulate so that the throughput ratio of the ducted equalizing valve of the upper level in the Hydraulic Power System all equates, regulate at last the overall balance valve of Hydraulic Power System, make the throughput ratio of overall balance valve equal one, the throughput ratio of the equalizing valve that other in the Hydraulic Power System are all also equals one thereupon.
In the adjustment method of above-mentioned a kind of static balancing valve, described all branch roads are all in parallel, set out by an entry pipeline, get back to same water return pipeline.
In the adjustment method of above-mentioned a kind of static balancing valve, in the described steps A, control water pump total flow is between the 100%-110% of design discharge.
When regulating at last, the water pump total flow need to be controlled to be design discharge, the initial flow of water pump is controlled 100%-110%, and is easy to adjust, and the interference that is subject to during adjusting is few, and the accuracy rate of adjusting is high.
In the adjustment method of above-mentioned a kind of static balancing valve, among the described step B, regulate and measure flow greater than the arm of design discharge 150%, control the equalizing valve at this arm place, make the mensuration flow of arm reach 110% of design discharge.
When test traffic greater than design discharge 150% the time, can interfere with the accuracy that equalizing valve is regulated.
In the adjustment method of above-mentioned a kind of static balancing valve, among the described step C, all end equipment Pressure Drops on the selected arm are identical, then have minimum throughput ratio apart from the equalizing valve end equipment farthest on the arm.
Flow enters into end equipment through an equalizing valve, and the Pressure Drop of these end equipments when design discharge is identical, and then a distance equalizing valve end equipment farthest generally has minimum throughput ratio, because the pressure differential that this end equipment obtains is minimum; If the Pressure Drop of these end equipments is different, then any one in them all might have the minimum flow ratio.
Compared with prior art, the adjustment method of static balancing valve provided by the invention select to have maximum flow than the end equipment of the ratio of the minimum flow in the arm of the ratio of the maximum flow in the standpipe as comparable device, all terminal equalizing valves on the same arm are debugged, the impact that is interfered during debugging is little, simple to operate, the debugging accuracy rate is high; Adopt identical method, successively the arm with maximum flow ratio remaining on the same standpipe is regulated, the interference that is subject to during debugging is minimum, and the debugging success ratio is high, and debugging efficiency is high.In like manner the pipeline of upper level is debugged, saved the man power and material.
Description of drawings
Fig. 1 is the schematic diagram of single arm of the adjustment method of this static balancing valve.
Fig. 2 is the schematic diagram of single standpipe of the adjustment method of this static balancing valve.
Fig. 3 is the schematic diagram of single main of the adjustment method of this static balancing valve.
Among the figure, 1, standpipe; 2, arm; 3, end equipment; 4, prop up equalizing valve; 5, terminal equalizing valve; 6, vertical equalizing valve; 7, main.
Embodiment
Below be specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiment.
The adjustment method of this static balancing valve is used for all parallel connections of all branch roads of debugging Hydraulic Power System, is set out by an entry pipeline, gets back to the equalizing valve of same water return pipeline, and the throughput ratio of all equalizing valves in the system that makes is equal to 1.
Steps A, choose the standpipe of maximum flow ratio:
The all equalizing valve of standard-sized sheet, autovalve, often drive shut-off valve, adjust main equalizing valve, the control pump capacity is between the 100%-110% of design discharge, determine the design discharge of all standpipes 1, measure the actual flow of all standpipes 1, and calculate the throughput ratio of every standpipe 1: throughput ratio=actual flow/design discharge, choose the standpipe 1 of maximum flow ratio;
Step B, choose the arm of maximum flow ratio:
Determine the design discharge of all arms 2 on the selected standpipe 1, measure the actual flow of all arms 2 on the selected standpipe 1, measure flow greater than the arm 2 of design discharge 150% when regulating, control the equalizing valve at these arm 2 places, make the mensuration flow of arm 2 drop to 110% of design discharge, and calculate the throughput ratio of every arm 2: throughput ratio=actual flow/design discharge, choose the arm 2 of maximum flow ratio;
Step C, choose the end equipment of minimum flow ratio:
Equalizing valve standard-sized sheet on the selected arm 2, determine the design discharge of all end equipments 3 on the selected arm 2, measure the actual flow of all end equipments 3 on the selected arm 2, calculate the throughput ratio of each end equipment 3: throughput ratio=actual flow/design discharge, choose minimum flow and compare λ
MinEnd equipment 3 be comparable device, all end equipments 3 Pressure Drops on the selected arm 2 are identical, then have minimum throughput ratio apart from the equalizing valve end equipment 3 farthest on the arm 2;
Terminal equalizing valve on step D, the adjusting end equipment:
Regulate the terminal equalizing valve on the selected end equipment 3, make the throughput ratio λ of selected terminal equalizing valve=λ
Min, the connecting test instrument is tested, and take this end equalizing valve as with reference to valve, regulates successively the terminal equalizing valve on each end equipment 3 on the selected arm 2, and the throughput ratio of the terminal equalizing valve of each end equipment 3 on the selected arm 2 that makes all equates;
Step e, regulate the terminal equalizing valve on all end equipments on the standpipe with maximum flow ratio:
On selected standpipe, choose successively the remaining arm with maximum flow ratio, repeat above-mentioned step C and step D, the throughput ratio of the terminal equalizing valve of each end equipment on the same arm is all equated, namely regulated the arm that the arm post debugging of maximum flow ratio on this standpipe has second largest throughput ratio, the like regulate the arm with the third-largest throughput ratio, until the terminal equalizing valve debugging balance of the end equipment on all standpipes;
Step F, regulate an equalizing valve of all arms on the standpipe with maximum flow ratio:
Adopt the method identical with step D with step C, the throughput ratio of an equalizing valve of each arm on the selected standpipe that makes all equates.Equalizing valve on the arm of this moment is regarded as the terminal equalizing valve of end equipment, the equalizing valve with on the identical method adjusting arm of the terminal equalizing valve of adjusting end equipment all equates the throughput ratio of all equalizing valves on this all standpipes;
Step G, regulate the vertical equalizing valve of all standpipes
Vertical equalizing valve standard-sized sheet on all standpipes adopts the method identical with step D with step C, and the throughput ratio of the vertical equalizing valve on all standpipes that make all equates;
Repeat above-mentioned steps, regulate so that the throughput ratio of the ducted equalizing valve of the upper level in the Hydraulic Power System all equates, regulate at last the overall balance valve of Hydraulic Power System, make the throughput ratio of overall balance valve equal one, the throughput ratio of the equalizing valve that other in the Hydraulic Power System are all also equals one thereupon.
Specifically, as shown in Figure 1, this arm comprises one equalizing valve V, five end equipments 1,2,3,4,5 and five terminal equalizing valve V
1, V
2, V
3, V
4, V
5, during debugging, prop up equalizing valve V standard-sized sheet, determine the design discharge of each end equipment, measure the actual flow of each end equipment, according to throughput ratio=actual flow/design discharge, calculate the throughput ratio λ of each end equipment, confirm minimum throughput ratio λ
Min, be called the least favorable end equipment, the Pressure Drop of these end equipments when design discharge is identical, minimum from the pressure reduction that equalizing valve V end equipment 5 farthest obtains, namely it has the minimum flow ratio, regulates terminal equalizing valve V
5, make λ
5=λ
Min, with terminal equalizing valve V
5Throughput ratio be set on this value, the connecting test instrument is carried out continuous flow or Pressure Drop and is measured.Regulate terminal equalizing valve V towards an equalizing valve V direction
4, make λ
4=λ
5, (this process can change the λ of METHOD FOR CONTINUOUS DETERMINATION a little
5Value, if deviation value greater than flow 5% and with reference to 10% of pressure reduction, readjust terminal equalizing valve V
4, make λ
4=new λ
5Value).Regulate successively more terminal equalizing valve V
3, V
2, V
1, for example, at the terminal equalizing valve V of debugging
2The time, throughput ratio λ
5Occur changing, but λ
3And λ
4Still keep equaling λ
5, the flow that affects of external disturbance is the ratio variation, therefore, keeps balance between these end equipments, makes λ after the adjusting
1=λ
2=λ
3=λ
4=λ
5
As shown in Figure 2, choose again on this standpipe the arm (arm close to the vertical equalizing valve second) of throughput ratio maximum in the remaining arm, adopt identical method to the end equipment 6,7,8,9 on this arm, 10 terminal equalizing valve V
6, V
7, V
8, V
9, V
10Regulate, so that the terminal equalizing valve V on this arm
6, V
7, V
8, V
9, V
10Throughput ratio all equate, repeat this step, regulate successively the remaining arm with maximum flow ratio, so that V
11, V
12, V
13, V
14, V
15Throughput ratio all equate V
16, V
17, V
18, V
19, V
20Throughput ratio all equate.After the throughput ratio of the terminal equalizing valve on the end equipment all adjusts balance, adopt identical method, the equalizing valve on the debugging arm makes equalizing valve V, V on the same standpipe
a, V
b, V
c, V
dThroughput ratio all equate.
As shown in Figure 3, after all equalizing valves on all same standpipes and terminal equalizing valve all equate, adopts the vertical equalizing valve on the identical method debugging standpipe, so that the throughput ratio of all vertical equalizing valve VA, VB, VC is all equal.
Repeat this kind method, ducted equalizing valve to upper level is regulated, so that all identical with the throughput ratio of the equalizing valve in the one-level pipeline, debug at last the overall balance valve, the throughput ratio of debugging overall balance valve equals 1, and the throughput ratio of all equalizing valves of other in the Hydraulic Power System also equals 1 thereupon.
The present embodiment is basic identical with structure and the principle of embodiment 1, and different place is to comprise on the arm in the present embodiment one equalizing valve V, four end equipments 1,2,3,4 and four terminal equalizing valve V
1, V
2, V
3, V
4, adopt and with embodiment 1 identical adjustment method Hydraulic Power System is adjusted, finally make the throughput ratio of all equalizing valves be equal to 1.
The present embodiment is basic identical with structure and the principle of embodiment 1, and different place is to comprise on the arm in the present embodiment one equalizing valve V, eight end equipments 1,2,3,4,5,6,7,8 and eight terminal equalizing valve V
1, V
2, V
3, V
4, V
5, V
6, V
7, V
8, adopt and with embodiment 1 identical adjustment method Hydraulic Power System is adjusted, finally make the throughput ratio of all equalizing valves be equal to 1.
Claims (5)
1. the adjustment method of a static balancing valve is characterized in that, this method may further comprise the steps:
Steps A, choose the standpipe of maximum flow ratio:
The all equalizing valve of standard-sized sheet, autovalve, often drive shut-off valve, adjust main equalizing valve, the control pump capacity, determine the design discharge of all standpipes (1), measure the actual flow of all standpipes (1), and calculate the throughput ratio of every standpipe (1): throughput ratio=actual flow/design discharge, choose the standpipe (1) of maximum flow ratio;
Step B, choose the arm of maximum flow ratio:
Determine the design discharge of upper all arms (2) of selected standpipe (1), measure the actual flow of all arms (2) on the selected standpipe (1), and calculate the throughput ratio of every arm (2): throughput ratio=actual flow/design discharge, choose the arm (2) of maximum flow ratio;
Step C, choose the end equipment of minimum flow ratio:
Equalizing valve (a 4) standard-sized sheet on the selected arm (2), determine the design discharge of upper all end equipments (3) of selected arm (2), measure the actual flow of all end equipments (3) on the selected arm (2), calculate the throughput ratio of each end equipment (3): throughput ratio=actual flow/design discharge, choose minimum flow and compare λ
MinEnd equipment (3) be comparable device;
Terminal equalizing valve on step D, the adjusting end equipment:
Regulate the terminal equalizing valve (5) on the selected end equipment (3), make the throughput ratio λ of selected terminal equalizing valve (5)=λ
MinThe connecting test instrument, test, take this end equalizing valve (5) as with reference to valve, regulate successively the terminal equalizing valve (5) on each end equipment (3) on the selected arm (2), the throughput ratio of the terminal equalizing valve (5) of each end equipment (3) on the selected arm (2) that makes all equates;
Step e, regulate the terminal equalizing valve on all end equipments on the standpipe with maximum flow ratio:
On selected standpipe (1), choose successively the remaining arm with maximum flow ratio (2), repeat above-mentioned step C and step D, the throughput ratio of the terminal equalizing valve (5) of each end equipment (3) on the same arm (2) is all equated;
Step F, regulate an equalizing valve of all arms on the standpipe with maximum flow ratio:
Adopt the method identical with step D with step C, the throughput ratio of an equalizing valve (4) of each arm (2) on the selected standpipe (1) that makes all equates;
Step G, regulate the vertical equalizing valve of all standpipes:
Vertical equalizing valve (6) standard-sized sheet on all standpipes (1) adopts the method identical with step D with step C, and the throughput ratio of the vertical equalizing valve (6) on all standpipes (1) that make all equates;
Repeat above-mentioned steps, regulate so that the throughput ratio of the ducted equalizing valve of the upper level in the Hydraulic Power System all equates, regulate at last the overall balance valve of Hydraulic Power System, make the throughput ratio of overall balance valve equal one, the throughput ratio of the equalizing valve that other in the Hydraulic Power System are all also equals one thereupon.
2. the adjustment method of a kind of static balancing valve according to claim 1 is characterized in that, described all branch roads are all in parallel, set out by an entry pipeline, get back to same water return pipeline.
3. the adjustment method of a kind of static balancing valve according to claim 1 is characterized in that, in the described steps A, control water pump total flow is between the 100%-110% of design discharge.
4. the adjustment method of a kind of static balancing valve according to claim 1, it is characterized in that, among the described step B, regulate and measure flow greater than the arm (2) of design discharge 150%, control the equalizing valve that this arm (2) is located, make the mensuration flow of arm (2) reach 110% of design discharge.
5. the adjustment method of a kind of static balancing valve according to claim 1, it is characterized in that, among the described step C, all end equipments (3) Pressure Drop on the selected arm (2) is identical, then has minimum throughput ratio apart from equalizing valve (4) end equipment (3) farthest on the arm (2).
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|---|---|---|---|
| CN2012105192028A CN103034251A (en) | 2012-12-05 | 2012-12-05 | Debugging method of static balance valve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105192028A CN103034251A (en) | 2012-12-05 | 2012-12-05 | Debugging method of static balance valve |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109231857A (en) * | 2018-10-24 | 2019-01-18 | 中冶长天国际工程有限责任公司 | A kind of limekiln fire coal adaptive regulation method and system |
| CN115232897A (en) * | 2022-06-28 | 2022-10-25 | 武汉钢铁有限公司 | Method for regulating water quantity of blast furnace soft water closed circulation cooling system |
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| JP2002130659A (en) * | 2000-10-26 | 2002-05-09 | Tokyo Gas Co Ltd | Gas burner equipped with air fuel ratio proportional control means |
| JP2003035415A (en) * | 2001-07-23 | 2003-02-07 | Tokyo Gas Co Ltd | Fuel control method and device used for it |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109231857A (en) * | 2018-10-24 | 2019-01-18 | 中冶长天国际工程有限责任公司 | A kind of limekiln fire coal adaptive regulation method and system |
| CN115232897A (en) * | 2022-06-28 | 2022-10-25 | 武汉钢铁有限公司 | Method for regulating water quantity of blast furnace soft water closed circulation cooling system |
| CN115232897B (en) * | 2022-06-28 | 2023-05-23 | 武汉钢铁有限公司 | Method for adjusting water quantity of blast furnace soft water closed circulation cooling system |
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Application publication date: 20130410 |