CN102166449A - Water treatment device with constant resistance regulation and control function and water treatment method thereof - Google Patents
Water treatment device with constant resistance regulation and control function and water treatment method thereof Download PDFInfo
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- CN102166449A CN102166449A CN2011100642442A CN201110064244A CN102166449A CN 102166449 A CN102166449 A CN 102166449A CN 2011100642442 A CN2011100642442 A CN 2011100642442A CN 201110064244 A CN201110064244 A CN 201110064244A CN 102166449 A CN102166449 A CN 102166449A
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Abstract
The invention discloses a water treatment device with a constant resistance regulation and control function, which is characterized in that the inside of a shell of the water treatment device is provided with a filter body; the water treatment device is also provided with a first pressure sensor, a second pressure sensor, a third pressure sensor, a constant resistance regulator and an electric control device; the first pressure sensor is arranged in the part close to a water inlet of the filter body, of the shell, the second pressure sensor is arranged in the part close to a water outlet of the filter body, of the shell, the third pressure sensor is arranged in the part close to a water outlet of the shell, of the shell, the constant resistance regulator is arranged in the part between the second pressure sensor and the third pressure sensor and close to the third pressure sensor, of the shell; and the electric control device is respectively electrically connected with the first pressure sensor, the second pressure sensor, the third pressure sensor, the constant resistance regulator, a backwashing device and a blow-off valve. By using the device and method disclosed by the invention, the problem that the operating condition of a main engine of a circulating water system dynamic changes due to the resistance change of the water treatment device is solved fundamentally, thereby achieving the technical purpose that the water quality of circulating water is matched with the hydraulic operating condition of the main engine.
Description
Technical field
The present invention relates to a kind of constant-resistance power that has and regulated the water treatment facilities of control and the method for water treatment thereof.
Background technology
When carrying out circulating water treatment, owing in the water treatment facilities filtering bodies is housed, in the device initial operating stage stage, filtering bodies is less to the resistance of water, be commonly referred to initial resistance, the pressure reduction at filtering bodies two ends is less relatively, and water treatment facilities body resistance/pressure reduction is also relatively stable.The circulation resistance is less relatively, and hydraulic regime is stable, and system's operation is normal.
After operation a period of time, filtering bodies is because of impurity in the trap water at water treatment facilities, and flow section reduces gradually, and filtration resistance increases, and the pressure reduction that shows as the filtering bodies both sides constantly increases, and the pressure at filter two ends increases with the increase of filtering bodies pressure at two ends.
When having served as filtration resistance power and increasing to maximum, measure such as need to adopt water backwashing, air purge, scrub bring back to life the filter body, make its resistance return to the initial resistance state.Filtration resistance when beginning to bring back to life the filter body is called whole resistance.
Generally speaking, several times poor arranged between initial resistance and the whole resistance, can cause the change in resistance scope of filter very big like this, make the SR of circulation present cyclically-varying, cause system's hydraulic regime instability.Particularly under the multiple branch circuit loop situation in parallel, system's waterpower working conditions change is more obvious, and operating pressure, flow and design conditions depart from greatly, have a strong impact on operational effect.In actual motion, have to adopt the method that strengthens pump capacity, pressure to solve the problems referred to above, increased system operation cost and equipment input.
Summary of the invention
The object of the invention is to have solved the circulating water treatment device change in resistance and causes the whole system working conditions change, causes the unmatched technical barrier of whole system operating mode and cycle water.
In order to finish the application's goal of the invention, the present invention by the following technical solutions:
A kind of water treatment facilities that constant-resistance power is regulated control that has of the present invention, near in the shell of water treatment facilities water inlet filtering bodies is being housed, the water inlet of water treatment facilities is equipped with inlet valve, delivery port is equipped with flowing water Valve, in the shell upper end backwash device is housed, blow-off pipe is equipped with in lower end in filtering bodies, blowoff valve is housed on the blow-off pipe, wherein: the water treatment facilities that has constant-resistance power adjusting control also is equipped with: first pressure sensor, second pressure sensor, the 3rd pressure sensor, constant-resistance draught control mechanism and electric control gear, above-mentioned first pressure sensor is contained in the shell near the water inlet of filtering bodies, above-mentioned second pressure sensor is contained in the shell near the delivery port of filtering bodies, above-mentioned the 3rd pressure sensor is contained in the shell near the delivery port of shell, the constant-resistance draught control mechanism be contained between second pressure sensor and the 3rd pressure sensor near in the shell of the 3rd pressure sensor, above-mentioned electric control gear respectively with first pressure sensor, second pressure sensor, the 3rd pressure sensor, the constant-resistance draught control mechanism, backwash device and blowoff valve are electrically connected;
A kind of water treatment facilities that constant-resistance power is regulated control that has of the present invention, wherein: the constant-resistance draught control mechanism that described constant-resistance draught control mechanism is the valve plate formula;
Regulate the method that the water treatment facilities of control carries out water treatment with having constant-resistance power, wherein:
(a) set and to have the pressure reduction that constant-resistance power is regulated the water treatment facilities of control, the predetermined aperture of constant-resistance draught control mechanism is adjusted to 80-85%;
(b) record the pressure of pressure near the water inlet of filtering bodies, delivery port respectively by first pressure sensor, second pressure sensor and the 3rd pressure sensor and near the pressure of the delivery port of shell, and the pressure that it is measured sends electric control gear to, calculate the water inlet of first pressure sensor and the 3rd pressure sensor delivery port pressure reduction and calculate the water inlet of first pressure sensor and the pressure reduction of the delivery port of second pressure sensor;
(c) pressure reduction with the 3rd pressure sensor and the first pressure sensor pressure reduction and setting compares, when this pressure reduction during less than the pressure reduction set, turn the aperture of regulating the constant-resistance draught control mechanism down,, transfer big aperture of regulating the constant-resistance draught control mechanism when this pressure reduction during greater than the pressure reduction set; This pressure reduction is equated with the pressure reduction of setting;
(d) when pressure reduction between the 3rd pressure sensor and first pressure sensor when setting pressure difference, and when oneself reaches maximum opening when the constant-resistance draught control mechanism, the pressure reduction of second pressure sensor and first pressure sensor and the pressure difference of setting are compared, until the pressure reduction of second pressure sensor and first pressure sensor more than or equal to 95% of the pressure difference of setting, open blowoff valve, filtering bodies is carried out backwash;
(e) after backwash finishes, close backwash device and blow-off pipe, the aperture of drag regulator is returned to predetermined aperture, return step (b), have constant-resistance power and regulate the water treatment facilities of control and carry out the normal filtration operation.
The present invention improves existing circulating water treatment device with filtering function, water treatment facilities traditional, that have filtering function have been avoided, pressure oscillation is huge in operation and backwash process, causes that whole circulation water system pressure changes greatly, is unfavorable for the drawback that set steady moves.By constant-resistance power regulation technology, both ensured the economical rationality of system's water treatment, solve system again because the main frame hydraulic regime that water treatment facilities caused changes and the unmatched problem of water quality treatment, prolonged the service life of system, reduced operating costs such as system's operation energy consumption and water consumption.
The present invention organically combines differential pressure control technique and circulating water treatment technology, both efficiently solved circulation heat transmission equipment hydraulic regime wide fluctuations, cause water circulating pump runnability curves shift, stable state has been controlled unmatched problem between heat transmission equipment hydraulic regime and the water treatment facilities water quality treatment again.
Description of drawings
Fig. 1 is the schematic diagram that has the water treatment facilities of constant-resistance power adjusting control of the present invention.
In Fig. 1, label 1 is the backwash device, label 2 is a shell, and label 3 is a filtering bodies, and label 4 is the constant-resistance draught control mechanism, label 5 is the 3rd pressure sensor, label 6 is second pressure sensor, and label 7 is a blow-off pipe, and label 8 is first pressure sensor, label 9 is an electric control gear, and label 10 is a blowoff valve.
The specific embodiment
Referring to Fig. 1, a kind of water treatment facilities that constant-resistance power is regulated control that has of the present invention, near in the shell 2 of water treatment facilities water inlet filtering bodies 3 is housed, the water inlet of water treatment facilities is equipped with inlet valve, delivery port is equipped with flowing water Valve, in shell 2 upper ends backwash device 1 is housed, blow-off pipe 7 is housed, blowoff valve 10 is housed on the blow-off pipe 7 in the lower end of filtering bodies 3.Be equipped with in the water treatment facilities: first pressure sensor 8, second pressure sensor 6, the 3rd pressure sensor 5, constant-resistance draught control mechanism 4 and electric control gear 9, first pressure sensor 8 is contained in the shell near the water inlet of filtering bodies 3, second pressure sensor 6 is contained in the shell near the delivery port of filtering bodies 3, the 3rd pressure sensor 5 is contained in the shell near the delivery port of shell 2, constant-resistance draught control mechanism 4 be contained between second pressure sensor 6 and the 3rd pressure sensor 5 near in the shell 2 of the 3rd pressure sensor 5, above-mentioned electric control gear 9 respectively with first pressure sensor 8, second pressure sensor 6, the 3rd pressure sensor 5, constant-resistance draught control mechanism 4, backwash device 1 and blowoff valve 10 are electrically connected.Constant-resistance draught control mechanism 4 is the constant-resistance draught control mechanism of valve plate formula.
The method of carrying out water treatment with the water treatment facilities that has constant-resistance power adjusting control of the present invention may further comprise the steps:
(a) set and to have the pressure reduction that constant-resistance power is regulated the water treatment facilities of control, the predetermined aperture of constant-resistance draught control mechanism is adjusted to 80-85%;
(b) record the pressure of pressure near the water inlet of filtering bodies 3, delivery port respectively by first pressure sensor 8, second pressure sensor 6 and the 3rd pressure sensor 5 and near the pressure of the delivery port of shell 2, and the pressure that it is measured sends electric control gear 9 to, calculate the water inlet of first pressure sensor 8 and the 3rd pressure sensor 5 delivery port pressure reduction and calculate the water inlet of first pressure sensor 8 and the pressure reduction of the delivery port of second pressure sensor 6;
(c) pressure reduction with the 3rd pressure sensor 5 and first pressure sensor, 8 pressure reduction and setting compares, when this pressure reduction during less than the pressure reduction set, turn the aperture of regulating constant-resistance draught control mechanism 4 down,, transfer big aperture of regulating constant-resistance draught control mechanism 4 when this pressure reduction during greater than the pressure reduction set; This pressure reduction is equated with the pressure reduction of setting;
(d) when pressure reduction between the 3rd pressure sensor 5 and first pressure sensor 8 when setting pressure difference, and when oneself reaches maximum opening when constant-resistance draught control mechanism 4, the pressure reduction of second pressure sensor 6 and first pressure sensor 8 and the pressure difference of setting are compared, until the pressure reduction of second pressure sensor 6 and first pressure sensor 8 more than or equal to 95% of the pressure difference of setting, open blowoff valve 10, filtering bodies 3 is carried out backwash;
(e) after backwash finishes, close backwash device 1 and blow-off pipe 7, the aperture of constant-resistance draught control mechanism 4 is returned to predetermined aperture, return step (b), have constant-resistance power and regulate the water treatment facilities of control and carry out the normal filtration operation.
More than describing is explanation of the invention, is not limitation of the invention, and institute of the present invention restricted portion is referring to claim, and under the situation of spirit of the present invention, the present invention can do any type of modification.
Claims (4)
1. one kind has the water treatment facilities that constant-resistance power is regulated control, near in the shell (2) of water treatment facilities water inlet filtering bodies (3) is being housed, the water inlet of water treatment facilities is equipped with inlet valve, delivery port is equipped with flowing water Valve, in shell (2) upper end backwash device (1) is housed, in the lower end of filtering bodies (3) blow-off pipe (7) is housed, blowoff valve (10) is housed on the blow-off pipe (7), it is characterized in that: the water treatment facilities that has constant-resistance power adjusting control also is equipped with: first pressure sensor (8), second pressure sensor (6), the 3rd pressure sensor (5), constant-resistance draught control mechanism (4) and electric control gear (9), above-mentioned first pressure sensor (8) is contained in the shell (2) near the water inlet of filtering bodies (3), above-mentioned second pressure sensor (6) is contained in the shell (2) near the delivery port of filtering bodies (3), above-mentioned the 3rd pressure sensor (5) is contained in the shell (2) near the delivery port of shell (2), constant-resistance draught control mechanism (4) be contained between second pressure sensor (6) and the 3rd pressure sensor (5) near in the shell (2) of the 3rd pressure sensor (5), above-mentioned electric control gear (9) respectively with first pressure sensor (8), second pressure sensor (6), the 3rd pressure sensor (5), constant-resistance draught control mechanism (4), backwash device (1) and blowoff valve (10) are electrically connected.
2. a kind of water treatment facilities that constant-resistance power is regulated control that has according to claim 1, it is characterized in that: described constant-resistance draught control mechanism (4) is the constant-resistance draught control mechanism of valve plate formula.
3. regulate the method that the water treatment facilities of control carries out water treatment with the described constant-resistance power that has of claim 1, it is characterized in that:
(a) set and to have the pressure reduction that constant-resistance power is regulated the water treatment facilities of control, the predetermined aperture of constant-resistance draught control mechanism (4) is adjusted to 80-85%;
(b) record the pressure of pressure near the water inlet of filtering bodies (3), delivery port respectively by first pressure sensor (8), second pressure sensor (6) and the 3rd pressure sensor (5) and near the pressure of the delivery port of shell (2), and the pressure that it is measured sends electric control gear (9) to, calculate the water inlet of first pressure sensor (8) and the 3rd pressure sensor (5) delivery port pressure reduction and calculate the water inlet of first pressure sensor (8) and the pressure reduction of the delivery port of second pressure sensor (6);
(c) pressure reduction of the 3rd pressure sensor (5) with first pressure sensor (8) pressure reduction and setting is compared, when this pressure reduction during less than the pressure reduction set, turn the aperture of regulating constant-resistance draught control mechanism (4) down, when this pressure reduction during, transfer big aperture of regulating constant-resistance draught control mechanism (4) greater than the pressure reduction set; This pressure reduction is equated with the pressure reduction of setting;
(d) when pressure reduction between the 3rd pressure sensor (5) and first pressure sensor (8) when setting pressure difference, and when constant-resistance draught control mechanism (4) when oneself reaches maximum opening, second pressure sensor (6) and the pressure reduction of first pressure sensor (8) and the pressure difference of setting are compared, until the pressure reduction of second pressure sensor (6) and first pressure sensor (8) more than or equal to 95% of the pressure difference of setting, open blowoff valve (10), filtering bodies (3) is carried out backwash;
(e) after backwash finishes, close backwash device (1) and blowoff valve (10), the aperture of drag regulator (4) is returned to predetermined aperture, return step (b), have constant-resistance power and regulate the water treatment facilities of control and carry out normal filtration and operate.
4. method according to claim 3 is characterized in that: described constant-resistance draught control mechanism (4) is the constant-resistance draught control mechanism of valve plate formula.
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| CN 201110064244 CN102166449B (en) | 2011-03-17 | 2011-03-17 | Water treatment device with constant resistance regulation and control function and water treatment method thereof |
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| CN 201110064244 CN102166449B (en) | 2011-03-17 | 2011-03-17 | Water treatment device with constant resistance regulation and control function and water treatment method thereof |
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| CN102166449B CN102166449B (en) | 2012-12-05 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580626A (en) * | 2012-03-20 | 2012-07-18 | 南京国昌化工科技有限公司 | Double-shaft radial flow reactor |
| CN102847357A (en) * | 2012-08-24 | 2013-01-02 | 北京科净源科技股份有限公司 | Liquid filtration system |
| CN104238495A (en) * | 2014-07-31 | 2014-12-24 | 惠州市泰林科技有限公司 | Intelligent direct drinking water control system |
| CN104759124A (en) * | 2015-03-31 | 2015-07-08 | 山东惠尔佳生物有限公司 | Special filter for phosphatide oil and filtering method |
| AT16617U1 (en) * | 2018-04-10 | 2020-02-15 | Engel Austria Gmbh | Water supply device for a molding machine |
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| CN104759124A (en) * | 2015-03-31 | 2015-07-08 | 山东惠尔佳生物有限公司 | Special filter for phosphatide oil and filtering method |
| AT16617U1 (en) * | 2018-04-10 | 2020-02-15 | Engel Austria Gmbh | Water supply device for a molding machine |
Also Published As
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|---|---|
| CN102166449B (en) | 2012-12-05 |
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