CN111911906A - Descaling control method, descaling device and electric appliance of steam generator - Google Patents
Descaling control method, descaling device and electric appliance of steam generator Download PDFInfo
- Publication number
- CN111911906A CN111911906A CN202010805298.9A CN202010805298A CN111911906A CN 111911906 A CN111911906 A CN 111911906A CN 202010805298 A CN202010805298 A CN 202010805298A CN 111911906 A CN111911906 A CN 111911906A
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- China
- Prior art keywords
- descaling
- steam generator
- value
- current value
- water pump
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/54—De-sludging or blow-down devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
- F22B37/486—Devices for removing water, salt, or sludge from boilers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/56—Boiler cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/56—Boiler cleaning control devices, e.g. for ascertaining proper duration of boiler blow-down
- F22B37/565—Blow-down control, e.g. for ascertaining proper duration of boiler blow-down
Abstract
The invention discloses a descaling control method, a descaling device and an electric appliance of a steam generator, which mainly comprise a water quantity detection step, a current detection step and a descaling control step; water quantity detection: a water level detection probe in the inner cavity of the steam generator detects that the water level of the inner cavity of the steam generator reaches the set water level of a steam generator controller; a current detection step: detecting the actual current value of the water pump at the drain pipe of the steam generator by the detection unit; controlling descaling: the controller sets a first value for comparing the actual current value with the current, and obtains a comparison result to judge whether the descaling needs to be controlled. Whether the descaling needs to be carried out on the steam generator is judged by detecting the current value reduction condition when the filter screen is blocked by the massive scale to cause the reduction of the flow of the water channel.
Description
Technical Field
The invention belongs to the technical field of electric appliances, and particularly relates to a descaling control method, a descaling device and an electric appliance of a steam generator.
Background
The inside incrustation scale condition of present general steam generator can't be monitored, and water pump or solenoid valve are blockked up by the incrustation scale easily in the waste water discharge water route after steam generator work, can only remind the method of scale removal to prevent that the incrustation scale from producing the influence to follow-up water route and steam generator performance through the fixed time, and sufficient surplus can be left to general fixed time's method, and this user's that can lead to quality of water hardness to be lower scale removal operation is too frequent. And the descaling effect cannot be monitored after descaling, and the problem of ineffective descaling is possible.
Disclosure of Invention
The invention aims to provide a descaling control method, a descaling device and an electric appliance of a steam generator, so as to solve the problems of the background art.
In order to achieve the purpose, the descaling control method, the descaling device and the electric appliance of the steam generator have the following specific technical scheme:
a descaling control method of a steam generator comprises a water quantity detection step, a current detection step and a descaling control step;
water quantity detection: a water level detection probe in the inner cavity of the steam generator detects that the water level of the inner cavity of the steam generator reaches the set water level of a steam generator controller;
a current detection step: detecting the actual current value of the water pump at the drain pipe of the steam generator by the detection unit;
controlling descaling: the controller sets a first value for comparing the actual current value with the current, and obtains a comparison result to judge whether the descaling needs to be controlled.
Further, obtaining the comparison result to determine whether the descaling needs to be controlled includes:
when the actual current value of the water pump is smaller than a set first current value, controlling to remove scale;
when the actual current value of the water pump is larger than or equal to the current set first value, the descaling is not carried out, and the steam generator is normally used.
Further, the current setting first value is 50% of the actual current value or is more than 50% of the actual current value.
Further, detecting the actual current value of the water pump again when the descaling is finished, and judging whether the actual current value of the water pump is larger than or equal to a current set second value or not;
thereby judging whether the steam generator needs to be controlled for descaling again.
Further, the judging whether the steam generator needs to be controlled to descale again includes:
when the actual current value of the water pump is larger than the current set second value, descaling is finished and the steam generator can be normally used;
and when the actual current value of the water pump is smaller than or equal to the current set second value, performing circulating descaling again, performing current detection after descaling again, and finishing descaling until the actual current value of the water pump is larger than the current set second value, or repeating the descaling and the current detection after descaling.
Further, the current setting second value is 90% of the actual current value or more than 90% of the actual current value.
The descaling device comprises a steam generator body, a steam pipe and a water inlet pipe which are communicated with the inner cavity of the steam generator body, a drain pipe which is communicated with the inner cavity of the steam generator body, and a water pump which is arranged on the drain pipe, wherein a water level detection probe is arranged in the inner cavity of the steam generator body, and a detection unit for detecting the current of the water pump is arranged in the drain pipe.
Furthermore, a filter screen is also arranged in the drain pipe.
Furthermore, the steam generator body further comprises a control unit, which is used for judging the comparison between the actual current value of the water pump and the percentage of the current setting value respectively, and also used for judging the comparison between the actual current value of the water pump and the current setting second value respectively.
An electric appliance comprises the descaling device.
Further, the electric appliance includes a steam cleaner, a steam mop, a steam oven, or a steam sterilizing cabinet.
Compared with the prior art, the invention has the following beneficial effects:
1. whether the descaling needs to be carried out on the steam generator is judged by detecting the current value reduction condition when the filter screen is blocked by the massive scale to cause the reduction of the flow of the water channel.
2. And judging the descaling effect by detecting the recovery condition of the water pump current value after descaling is finished.
3. Through directly detecting the drain pipe, can produce too much incrustation scale influence before using at steam generator, just can detect out the incrustation scale in advance, clear up, play the effect of protection in advance.
Drawings
FIG. 1 illustrates a steam generator and a descaling control system thereof;
fig. 2 is a control logic diagram.
The reference numbers in the figures illustrate: the steam generator comprises a steam generator body 1, a steam pipe 2, a water inlet pipe 3, a water level detection probe 4, a drain pipe 5, a filter screen 6 and a water pump 7.
Detailed Description
For a better understanding of the objects, structure and function of the invention, reference should be made to the following description taken in conjunction with the accompanying drawings 1-2.
This embodiment still discloses a scale removal device, including steam generator body 1, the steam pipe 2 and the water pump 7 that sets up on inlet tube 3, the drain pipe 5 of intercommunication steam generator body 1 inner chamber, be equipped with water level detection probe 4 in the inner chamber of steam generator body 1, water level detection probe 4 has water in order to ensure steam generator body 1, and is equipped with the detecting element who detects 7 electric currents of water pump in the drain pipe 5. Wherein, still install filter screen 6 in the drain pipe 5, filter screen 6 can carry out filtration treatment to impurity, improves clean effect. The steam generator body 1 further comprises a control unit for judging the comparison between the actual current value of the water pump 7 and the percentage of the current setting value respectively, and also for judging the comparison between the actual current value of the water pump 7 and the current setting second value respectively.
The embodiment provides a descaling control method for a steam generator, which solves the problem of redundant operation of users with lower water hardness due to the fact that users with different water qualities use the same descaling period, and prevents blocky scale from separating from the steam generator to block a subsequent water channel.
Mainly comprises a water quantity detection step, a current detection step and a descaling control step;
water quantity detection: a water level detection probe 4 in the inner cavity of the steam generator detects that the water level of the inner cavity of the steam generator reaches the set water level of a steam generator controller;
a current detection step: detecting the actual current value of the water pump 7 at the drain pipe 5 of the steam generator through a detection unit;
controlling descaling: the controller sets a first value for comparing the actual current value with the current, and obtains a comparison result to judge whether the descaling needs to be controlled.
Wherein, obtaining the comparison result and judging whether the descaling needs to be controlled comprises:
when the actual current value of the water pump 7 is smaller than the set first current value, controlling to remove scale;
when the actual current value of the water pump 7 is larger than or equal to the current set first value, the descaling is not carried out, and the steam generator is normally used. Preferably, the current is set to a first value that is 50% or more than 50% of the actual current value.
As shown in fig. 1, a filter screen 6 is added at a drain pipe 5 of the steam generator, and a water level detection probe 4 is arranged in an inner cavity of a steam generator body 1: judging the descaling period: and judging according to the current of the water pump 7 during normal water drainage. Increase filter screen 6 in drain pipe 5 water route, when cubic incrustation scale by discharge steam generator body 1 inner chamber, the pipeline position at filter screen 6 department blocks up filter screen 6, and the discharge behind the filter screen 6 diminishes, and 7 loads on the water pump reduce, and 7 actual currents on the water pump reduce. When the actual current of the water pump 7 is reduced to 50% of a design value (when the water channel is not blocked, namely the actual current of the water pump 7 fully loaded by the water pump 7 is a fixed value and is given during design), the water channel is judged to be blocked, and a descaling period is finished, so that a user is reminded to descale. When the water quality used by a user is different, the descaling period can be changed according to different scaling conditions, and unnecessary operation of the user is effectively reduced.
The method for preventing misjudgment comprises the following steps: for preventing 7 actual current detection values of water pump because no water reduces in the 1 inner chamber of steam generator body, it judges that the priority all is less than the water level detection to go up 7 actual current of water pump, it judges promptly all under the condition that has water in the 1 inner chamber of steam generator body is detected at water level detection probe 4 to go up 7 actual current of water pump judgement result and control, when water level detection probe 4 detects no water, do not carry out the electric current and judge, it has water and the biggest condition of drainage flow to be steam generator when guaranteeing 7 actual current detection of water pump, avoid causing the discharge to reduce because of the lack of water, the condition that 7 actual current of water pump misjudges.
In order to further optimize and improve, the effect after descaling is verified, and the problem that the descaling effect cannot be judged after descaling in the prior art is solved. Therefore, the actual current value of the water pump 7 is detected again when the descaling is finished, and whether the actual current value of the water pump 7 is larger than or equal to the current set second value is judged; thereby judging whether the steam generator needs to be controlled for descaling again. Wherein, judging whether to need to control the secondary descaling of the steam generator comprises:
when the actual current value of the water pump 7 is larger than the current setting second value, the current setting second value is preferably 90% of the actual current value or larger than 90% of the actual current value. The descaling is finished and the steam generator can be normally used; and when the actual current value of the water pump 7 is smaller than or equal to the current set second value, circulating descaling again, detecting the current after descaling again, ending descaling until the actual current value of the water pump 7 is larger than the current set second value, and otherwise, continuously repeating the descaling and the current detection after descaling. As long as the detected current value after descaling does not meet the requirements, the controller continues descaling through program control, and the descaling is finished until the actual current value of the water pump 7 is detected to be larger than the current set second value, so that the use of the steam generator is realized.
For example, the descaling effect is judged: and judging according to the current of the water pump 7 after descaling. And after descaling is finished, the current of the water pump is detected in the last water discharging process, the current of the water pump 7 reaches more than 90% of a design value, the descaling is judged to be effective, the steam generator can be normally used, otherwise, the descaling is judged to be ineffective, the descaling needs to be continued, and the steam generator cannot be continuously used. Therefore, the problem that the use of the next descaling period is influenced due to the insufficient descaling effect can be solved.
The embodiment also provides an electric appliance comprising the descaling device. The electric appliance comprises a steam dust collector, a steam mop, a steam oven or a steam disinfection cabinet. The problem of the steam generator incrustation scale that is too much or follow-up water route is blockked up that the quality of water hardness exceeds the quality of water scope that the fixed time satisfied and causes that the fixed time sets up the mistake or quality of water hardness is solved.
It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes in the features and embodiments, or equivalent substitutions may be made therein by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (11)
1. A descaling control method of a steam generator is characterized by comprising a water quantity detection step, a current detection step and a descaling control step;
water quantity detection: a water level detection probe (4) in the inner cavity of the steam generator detects that the water level of the inner cavity of the steam generator reaches the set water level of the steam generator controller;
a current detection step: detecting the actual current value of a water pump (7) at the drain pipe (5) of the steam generator through a detection unit;
controlling descaling: the controller sets a first value for comparing the actual current value with the current, and obtains a comparison result to judge whether the descaling needs to be controlled.
2. The method of claim 1, wherein the obtaining the comparison result to determine whether the descaling needs to be controlled comprises:
when the actual current value of the water pump (7) is smaller than a set first current value, controlling to remove scale;
when the actual current value of the water pump (7) is larger than or equal to the current set first value, the descaling is not carried out, and the steam generator is normally used.
3. A descaling control method of the steam generator according to claim 2, wherein the current sets the first value to 50% of the actual current value or more than 50% of the actual current value.
4. A descaling control method for a steam generator according to claim 3, characterized in that the actual current value of the water pump (7) is detected again when descaling is finished, and whether the actual current value of the water pump (7) is larger than or equal to the current setting second value is judged;
thereby judging whether the steam generator needs to be controlled for descaling again.
5. The descaling control method of the steam generator according to claim 4, wherein the judging whether the steam generator needs to be controlled to descale again comprises:
when the actual current value of the water pump (7) is larger than a set second current value, descaling is finished and the steam generator can be normally used;
and when the actual current value of the water pump (7) is smaller than or equal to the current set second value, circulating descaling again, and detecting the current after descaling again, wherein descaling is finished until the actual current value of the water pump (7) is larger than the current set second value, otherwise, continuously repeating the descaling and the current detection after descaling.
6. A descaling control method for a steam generator according to claim 5, wherein the second current setting value is 90% or more than 90% of the actual current value.
7. The utility model provides a scale removal device, includes steam generator body (1), steam pipe (2) and inlet tube (3) of intercommunication steam generator body (1) inner chamber, drain pipe (5), the water pump (7) that set up on drain pipe (5) of intercommunication steam generator body (1) inner chamber, its characterized in that: a water level detection probe (4) is arranged in an inner cavity of the steam generator body (1), and a detection unit for detecting the current of the water pump (7) is arranged in the drain pipe (5).
8. Descaling device according to claim 7, wherein a screen (6) is also installed in the drain pipe (5).
9. Descaling device according to claim 8, wherein the steam generator body (1) further comprises a control unit for determining a comparison of the actual current value of the water pump (7) with a percentage magnitude of the current setting value, respectively, and for determining a comparison of the actual current value of the water pump (7) with a second current setting value, respectively.
10. An electrical appliance comprising the descaling device according to claim 9.
11. The appliance of claim 10, wherein the appliance comprises a steam cleaner, a steam mop, a steam oven, or a steam sterilizer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010805298.9A CN111911906A (en) | 2020-08-12 | 2020-08-12 | Descaling control method, descaling device and electric appliance of steam generator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010805298.9A CN111911906A (en) | 2020-08-12 | 2020-08-12 | Descaling control method, descaling device and electric appliance of steam generator |
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| CN111911906A true CN111911906A (en) | 2020-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010805298.9A Pending CN111911906A (en) | 2020-08-12 | 2020-08-12 | Descaling control method, descaling device and electric appliance of steam generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113057501A (en) * | 2021-05-12 | 2021-07-02 | 珠海格力电器股份有限公司 | Electrical equipment and descaling method and device thereof |
| CN117028973A (en) * | 2023-09-27 | 2023-11-10 | 福建省中明技术开发有限公司 | Device for preventing thermal stratification in water supply pipeline of steam generator |
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| CN201103937Y (en) * | 2007-08-03 | 2008-08-20 | 厦门灿坤实业股份有限公司 | Microwave oven with descaling reminding function |
| CN203577447U (en) * | 2013-12-05 | 2014-05-07 | 宁波荣安生物药业有限公司 | Wastewater filtering device for vaccine production |
| CN106556002A (en) * | 2016-11-23 | 2017-04-05 | 美的集团股份有限公司 | Steam generator and its scale removal control method, scale removal control device and electrical equipment |
| CN110537845A (en) * | 2019-08-13 | 2019-12-06 | 华帝股份有限公司 | scale detection device and detection method for steam cooking device |
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2020
- 2020-08-12 CN CN202010805298.9A patent/CN111911906A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201103937Y (en) * | 2007-08-03 | 2008-08-20 | 厦门灿坤实业股份有限公司 | Microwave oven with descaling reminding function |
| CN203577447U (en) * | 2013-12-05 | 2014-05-07 | 宁波荣安生物药业有限公司 | Wastewater filtering device for vaccine production |
| CN106556002A (en) * | 2016-11-23 | 2017-04-05 | 美的集团股份有限公司 | Steam generator and its scale removal control method, scale removal control device and electrical equipment |
| CN110537845A (en) * | 2019-08-13 | 2019-12-06 | 华帝股份有限公司 | scale detection device and detection method for steam cooking device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113057501A (en) * | 2021-05-12 | 2021-07-02 | 珠海格力电器股份有限公司 | Electrical equipment and descaling method and device thereof |
| CN117028973A (en) * | 2023-09-27 | 2023-11-10 | 福建省中明技术开发有限公司 | Device for preventing thermal stratification in water supply pipeline of steam generator |
| CN117028973B (en) * | 2023-09-27 | 2023-12-08 | 福建省中明技术开发有限公司 | Device for preventing thermal stratification in water supply pipeline of steam generator |
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