CN214538170U - Steam generator and liquid level detection device thereof - Google Patents
Steam generator and liquid level detection device thereof Download PDFInfo
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- CN214538170U CN214538170U CN202120335707.3U CN202120335707U CN214538170U CN 214538170 U CN214538170 U CN 214538170U CN 202120335707 U CN202120335707 U CN 202120335707U CN 214538170 U CN214538170 U CN 214538170U
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Abstract
The utility model discloses a steam generator and liquid level detection device thereof, liquid level detection device is including detecting isolation protecting tube, floater and hall circuit control board, and hall circuit control board sets up in detecting isolation protecting tube, and on floater slip cap was located and is detected isolation protecting tube, the first retaining ring that is provided with control floater rise on the detection isolation protecting tube detected isolation protecting tube, was provided with the hall element who is connected with hall circuit control board electricity in the detection isolation protecting tube, was provided with the hall response spare with the hall element adaptation in the floater. When the floater rises to the high department of hall element along with the liquid level, hall response spare in the floater is kept apart the hall element response in the protective tube with the detection, is discerned hall electronic signal by hall circuit control panel, stops the moisturizing, otherwise when the liquid level drops to predetermineeing the height, the hall response spare inside the floater can't respond to with hall element, sends the lack of water signal this moment, makes equipment can not appear dry combustion method or the phenomenon that spills over liquid.
Description
Technical Field
The utility model relates to a liquid level detection technical field, in particular to steam generator and liquid level detection device thereof.
Background
At present, no matter the size of a steam generator of ironing equipment, no matter the size of the steam generator is changed by directly charging the top of a furnace body or charging the side of the furnace body through a communicating vessel, a metal probe is adopted to contact the water surface, a water conductor is utilized, and whether water shortage is judged through resistance change between the probe and the furnace body or the wall of the communicating vessel pipe, so that whether water is added into a water pump is controlled. This kind of mode, along with the difference of water quality in different places, in order to can effectual judgement, just must make the collection scope very wide, because equipment works for a long time, the inside quality of water of equipment worsens, can produce a large amount of foams, because the foam also can electrically conduct, also can switch on probe and furnace body, from this equipment can not effectively discern the foam, because there is a large amount of foams inside the furnace body, and equipment still defaults to having water, can cause equipment dry combustion method, uses down afterwards, can bring following problem:
1. because the water in the oven body is reduced, the steam can not be supplied for use, and the ironing efficiency is influenced;
2. due to the reduction of furnace body water, the local part of the heating pipe is in the foam, so that dry burning is caused, the heating pipe is damaged if the water is light, and the safety accident is caused if the electricity is leaked due to the damage of the heating pipe if the water is heavy;
3. because the equipment is dried, the local temperature rise is too high, the furnace body is damaged if the temperature rises too high, peripheral accessories are damaged if the temperature rises too high, and fire disasters are caused if the temperature rises too high, so that the potential safety hazard is great;
4. no matter damage the heating pipe and the furnace body and other safety accidents occur, the ironing efficiency and the ironing quality are affected.
Since no technical breakthrough has been made for nearly two or thirty years, the heating pipe is damaged, and the replacement of the heating pipe becomes a potential industrial rule. Thus, the prior art has yet to be improved and enhanced.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing disadvantages of the prior art, an object of the present invention is to provide a steam generator and a liquid level detection device thereof, which can accurately determine the height of the liquid level without being affected by water quality.
For solving the technical problem, the utility model discloses following technical scheme has been taken:
the utility model provides a steam generator's liquid level detection device, is including detecting isolation protective tube, floater and hall circuit control board, hall circuit control board sets up in detecting isolation protective tube, the floater slip cap is located on detecting isolation protective tube, be provided with the first retaining ring of control floater rise on detecting isolation protective tube, the floater is located the below of first retaining ring, still be provided with hall element in detecting isolation protective tube, be provided with the hall response piece with hall element adaptation in the floater, hall element is connected with hall circuit control board electricity.
In the liquid level detection device of the steam generator, the installation height of the Hall element is the same as that of the first check ring.
In the liquid level detection device of the steam generator, a second retaining ring for controlling the descending height of the floating ball is arranged on the detection isolation protective pipe, and the floating ball is positioned between the first retaining ring and the second retaining ring.
Among the liquid level detection device of steam generator, the floater includes epitheca, inferior valve and stainless steel sleeve pipe, the middle part of epitheca and inferior valve all is provided with the connecting hole, epitheca and inferior valve sealing connection, and connecting hole department forms the spheroid that the middle part has the through-hole through stainless steel sleeve pipe connection, hall response piece cover is located on the stainless steel sleeve pipe.
In the liquid level detection device of the steam generator, the Hall element is a high-temperature resistant Hall element, and the Hall sensing piece is a high-temperature resistant powerful magnet.
In the liquid level detection device of the steam generator, the stainless steel sleeve is further provided with baffle rings, and the baffle rings are arranged at two ends of the Hall sensing piece.
In the liquid level detection device of the steam generator, the upper shell and the lower shell are both stainless steel shells, the upper shell is welded with the lower shell, and two ends of the stainless steel sleeve are respectively welded with the connecting holes of the upper shell and the lower shell.
In the liquid level detection device of the steam generator, the detection isolation protection pipe is a high-temperature resistant plastic pipe or a stainless steel pipe.
The liquid level detection device of the steam generator further comprises a mounting piece arranged at the top end of the detection isolation protection pipe.
In the liquid level detection device of the steam generator, a lead electrically connected with external control equipment is arranged in the detection isolation protective tube, one end of the lead is electrically connected with the Hall circuit control panel, and the other end of the lead extends out of the detection isolation protective tube.
The utility model provides a steam generator, includes boiler body, master control set, water supply installation and liquid level detection device, liquid level detection device sets up in boiler body, liquid level detection device and water supply installation all are connected with main control unit electricity, when liquid reaches minimum liquid level in the liquid level detection device detection boiler body, main control unit makes water supply installation supply water in to boiler body, and when liquid reached the highest liquid level in the liquid level detection device detection boiler body, main control unit made water supply installation stop to supplying water in the boiler body.
The steam generator in, boiler body includes water level communicating pipe, water level communicating pipe sets up in one side of boiler body, liquid level detection device sets up in water level communicating pipe, the bottom of water level communicating pipe is higher than the bottom of boiler body.
Compared with the prior art, the utility model provides a steam generator and liquid level detection device thereof, wherein, the liquid level detection device includes detection isolation guard pipe, floater, the sensing piece that sets up in the floater, set up the hall circuit control panel in detecting isolation guard pipe and set up the hall element on hall circuit control panel, be provided with the first retaining ring of control floater rise height on detecting isolation guard pipe, when the liquid level rises, the floater rises in step, when the floater rises to the height department of hall element, the hall sensing piece in the floater is responded to with the hall element that detects isolation guard pipe, makes hall circuit control panel discern the hall electronic signal of highest water level, thereby stops moisturizing through outside water pump, when the liquid level descends, the floater descends in step, when the liquid level descends to preset height, the hall sensing piece inside the floater can't respond to with hall element, send the water shortage signal this moment, timely moisturizing, when first retaining ring has and is used for the liquid boiling, the height of control floater come-up prevents that the floater from breaking away from the response scope and causing the erroneous judgement, through liquid level detection device can accurately detect the liquid level height to the phenomenon that dry combustion method or overflow liquid can not appear in messenger's equipment, the utility model discloses a being connected of hall element and hall response piece makes its operating signal that can not interfere equipment to guarantee the normal operating of equipment.
Drawings
Fig. 1 is the utility model provides a liquid level detection device's decomposition schematic diagram.
Fig. 2 is the structure diagram of the liquid level detection device provided by the utility model.
Fig. 3 is the utility model provides a liquid level detection device's detection isolation protective tube's decomposition schematic diagram.
Fig. 4 is a schematic structural diagram of the steam generator provided by the present invention.
Reference is made to the accompanying drawings in which: 1. detecting and isolating protective pipe 11, first retainer ring 12 and second retainer ring
2. Float ball 21, upper shell 22, lower shell 23, retaining ring 24, stainless steel sleeve
25. Through hole 3, Hall circuit control board 4, Hall element 5, Hall sensing piece
6. Mounting part 7, lead 8, boiler body 9, water level communicating pipe 91 and access hole
92. Sealing cap 100. liquid level detection device
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "on," "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.
It should be noted that the terms of orientation such as left, right, up and down in the embodiments of the present invention are only relative to each other or are referred to the normal use state of the product, and should not be considered as limiting.
Please refer to fig. 1, fig. 2 and fig. 3, the utility model provides a steam generator's liquid level detection device 100 is including detecting isolation protective tube 1, floater 2 and hall circuit control panel 3, hall circuit control panel 3 sets up in detecting isolation protective tube 1, 2 sliding sleeves of floater are located and are detected on isolating protective tube 1, can slide from top to bottom along with the liquid level height.
The detection isolation protection pipe 1 is provided with a first check ring 11 for controlling the rising height of the floating ball 2, the floating ball 2 is positioned below the first check ring 11, and the floating ball 2 is prevented from being separated from a detection range to cause misjudgment when liquid in equipment (such as a boiler) boils.
The floating ball 2 is internally provided with a Hall sensing piece 5 matched with the Hall element 4, and the Hall element 4 can be one and is electrically connected with the Hall circuit control board 3. The installation position of the first retainer ring 11 is the maximum height of the floating ball 2 which can rise.
When the liquid level rises, the floating ball 2 rises synchronously, when the floating ball 2 rises to the Hall element 4, the Hall sensing piece 5 in the floating ball 2 senses the Hall element 4 in the detection isolation protective tube 1, so that the Hall circuit control panel 3 recognizes Hall electronic signals to drive the on-off of the optical coupler on the Hall circuit control panel 3, the IO port corresponding to the main control chip on the Hall circuit control panel 3 is at low level (namely, emitting light signals-full water signals), so that an external water pump stops water replenishing, when the liquid level drops, the floating ball 2 falls synchronously, when the floating ball 2 falls to a preset height (such as 10mm), the Hall element 4 in the detection isolation protective tube 1 cannot sense the magnetic field signals of the Hall sensing piece 5 in the floating ball 2, at the moment, the optical coupler on the Hall circuit control panel 3 is disconnected, so that the IO port corresponding to the main control chip on the Hall circuit control panel 3 is at high level, main control chip receives the signal notification external control module that lacks water promptly (like the PCL controller of boiler) to control outside water pump moisturizing, make equipment can not dry combustion method or spill over the phenomenon of liquid, the utility model discloses a being connected of Hall element 4 and Hall response piece 5 makes its operating signal that can not interfere equipment, with the normal operating of assurance equipment.
The Hall element 4 is as high as the first retainer ring 11, and the first retainer ring 11 is used for controlling the floating height of the floating ball 2 when the liquid boils, so as to prevent the floating ball 2 from deviating from the induction range to cause misjudgment.
In an optional embodiment, the hall element 4 can be a plurality of, and set up in different positions, therefore can set up a plurality of liquid level as required and respond to, the utility model discloses do not do the restriction.
Furthermore, a second retainer ring 12 for controlling the descending height of the floating ball 2 is arranged on the detection isolation protective pipe 1, the floating ball 2 is located between the first retainer ring 11 and the second retainer ring 12, the second retainer ring 12 can be used for limiting the descending height of the floating ball 2 and preventing the floating ball 2 from falling off due to the fact that a wavy liquid level is generated when liquid is boiled, the liquid level can be accurately detected through the liquid level detection device 100, and the liquid level is always located between the first retainer ring 11 and the second retainer ring 12.
The floating ball 2 comprises an upper shell 21, a lower shell 22, two retaining rings 23 and a stainless steel sleeve 24, wherein the upper shell 21 and the lower shell 22 are respectively provided with a connecting hole 221, the upper shell 21 is in sealing connection with the lower shell 22, and the connecting holes 221 are connected through the stainless steel sleeve 24 to form a ball body with a through hole in the middle, so that the floating ball 2 can float on the water surface, and the floating ball 2 can slide up and down along the detection isolation protection pipe 1 through the stainless steel sleeve 24.
Specifically, hall response piece 5 and fender ring 23 all overlap and locate on nonrust steel casing pipe 24, just fender ring 23 is located hall response piece 5's both ends, through set up floater 2 into sealed hollow spheroid, can float on it to can make hall response piece 5 in the cavity rise or descend in step, through fender ring 23 plays spacing hall response piece 5's effect, makes hall response piece 5 can not slide on nonrust steel casing pipe 24, and then guarantees the liquid level detection precision.
In this embodiment, the upper casing 21 and the lower casing 22 are both stainless steel casings, the upper casing 21 is welded to the lower casing 22, the two ends of the stainless steel casing 24 are welded to the connection holes 221 of the upper casing 21 and the lower casing 22, and the floating ball 2 rises or falls due to buoyancy, so that erroneous judgment caused by the influence of the foam can be effectively avoided due to the fact that the floating ball 2 has dead weight and the foam does not have buoyancy. Furthermore, the floating ball 2 has a certain dead weight through the stainless steel shell and the floating ball 2 with the through hole in the middle, and the floating ball 2 has the through hole to slightly reduce the buoyancy of the floating ball, so that the floating ball can not completely float on the liquid level like the plastic shell due to too light dead weight, is not easily influenced by water (such as foam), and can not float. When the stainless steel shell floats on the liquid level, part of the stainless steel shell is positioned below the liquid level, so that variables cannot be generated due to the influence of the foam of the water quality and the liquid level, the misjudgment of the foam on the control is effectively avoided, the liquid level is controlled accurately, the stainless steel shell cannot be corroded, and the service life of the liquid level detection device 100 can be prolonged.
The hall element 4 is a high temperature resistant hall element 4, the high temperature resistance of the hall sensing element 5 is more than 150 ℃, so that the hall sensing element 5 is not influenced by the temperature of liquid, and the liquid level detection device 100 can be used in high temperature equipment such as a steam generator.
The detection isolation protection pipe 1 is a high-temperature-resistant plastic pipe or a stainless steel pipe, the high-temperature resistance is higher than 150 ℃, and the detection isolation protection pipe 1 does not have a magnetic field on the premise of ensuring the durability of the detection isolation protection pipe 1, so that the detection isolation protection pipe 1 does not influence the induction signal of the Hall element 4, and the detection precision of the liquid level detection device 100 is ensured.
The liquid level detection device 100 further comprises a mounting part 6 arranged at the top end of the detection isolation protective pipe 1, and the liquid level detection device 100 can be mounted on a furnace body or a water column pipe and the like through the mounting part 6.
As shown in fig. 3, a wire 7 electrically connected with an external control device is arranged in the detection isolation protection pipe 1, one end of the wire 7 is electrically connected with the hall circuit control board 3, the other end of the wire 7 extends out of the detection isolation protection pipe 1, and the liquid level detection device 100 is electrically connected with a water supply device of the equipment through the wire 7, so that the water supply device can make the external control device control water pump to supply water or stop water according to the detection result of the liquid level detection device 100, the equipment realizes automatic water supply, and the automation degree of the equipment is improved.
Based on the liquid level detection device 100 of the steam generator, the present invention also provides a steam generator (please refer to fig. 4), which comprises a boiler body 8, a main control device (not shown), a water supply device (not shown) and a liquid level detection device 100, the liquid level detection device 100 is arranged in the boiler body 8, the liquid level detection device 100 and the water supply device are both electrically connected with the main control device, when liquid reaches minimum liquid level (being first retaining ring 11 department) among the liquid level detection device 100 detection boiler body 8, main control unit makes water supply installation supply water to in the boiler body 8, and when liquid reaches maximum liquid level (being second retaining ring 12 department) among the liquid level detection device 100 detection boiler body 8, main control unit makes water supply installation stop supplying water to in the boiler body 8 to realize automatic water injection, thereby make steam generator can not appear the phenomenon of dry combustion method or overflow. Since the above description has been given to the liquid level detection apparatus 100 in detail, the description is omitted here.
Further, one side of boiler body 8 still is provided with water level communicating pipe 9, water level communicating pipe 9 sets up in one side of boiler body 8, liquid level detection device 100 sets up in water level communicating pipe 9, because water level communicating pipe 9 is connected with boiler body 8, and its liquid level is the real-time liquid level of boiler body 8 promptly.
It should be noted that the installation position of the water level connection pipe 9 may be the upper part or the top part of the boiler body 8, and the embodiment is not limited as long as the liquid level detection device 100 detects the liquid level height of the boiler body 8. Of course, the utility model discloses also can directly arrange liquid level detection device 100 in boiler body 8, as long as can detect boiler body 8's liquid level can.
Preferably, the bottom of the water level communicating pipe 9 is higher than the bottom of the boiler body 8, so that the boiler body 8 can be further prevented from being dried, double protection is achieved, and water in the water level communicating pipe 9 can be drained. Further, a maintenance opening 91 is further formed in one side of the bottom of the water level communicating pipe 9, a sealing cap 92 is arranged on the maintenance opening 91, and when the inner wall of the water level communicating pipe 9 is scaled, the sealing cap 92 can be opened for cleaning.
To sum up, the utility model provides a steam generator and liquid level detection device thereof, wherein, liquid level detection device is including detecting isolation protecting tube, floater, setting up the response piece in the floater, setting up in detecting the hall circuit control panel of isolating the protecting tube and setting up the hall element on hall circuit control panel, be provided with the first retaining ring and the second retaining ring of control floater height on detecting the isolation protecting tube, just the highest height of the floater that first retaining ring was injectd, the minimum height of the floater that the second retaining ring was injectd. When the liquid level rises, the floating ball rises synchronously, when the floating ball rises to the Hall element, the Hall sensing piece in the floating ball is sensed with the Hall element in the detection isolation protection tube, so that the Hall circuit control panel recognizes Hall electronic signals to drive the conduction of an optical coupler on the Hall circuit control panel, the corresponding IO port of the main control chip on the Hall circuit control panel is in a low level (namely, emitting optical signals-full water signals), so that an external water pump stops water supplement, when the liquid level drops, the floating ball descends synchronously, when the floating ball descends to a preset height (such as 10mm), the Hall element in the detection isolation protection tube cannot sense the magnetic field signal of the Hall sensing piece in the floating ball, at the moment, the optical coupler on the Hall circuit control panel is disconnected, the corresponding I O port of the main control chip on the Hall circuit control panel is in a high level, namely, the main control chip receives the water shortage signal to inform an external control module (such as a PCL controller of a boiler), thereby control outside water pump moisturizing to make equipment can not dry combustion method or spill over the phenomenon of liquid, the utility model discloses a hall element makes its operating signal that can not interfere equipment with being connected of hall response piece, with the normal operating of assurance equipment.
Furthermore, the floating ball is a stainless steel ball body, so that the floating ball has a certain dead weight, cannot completely float on the liquid surface like the plastic ball body due to too light dead weight, is easily influenced by water quality (such as foam), and cannot float. When the stainless steel ball floats on the liquid level, most of the stainless steel ball is positioned below the liquid level, so that variables cannot be generated due to the influence of water quality and foam on the liquid level, the misjudgment of the foam on the control is effectively avoided, and the liquid level is controlled accurately.
It should be understood that equivalent alterations and modifications can be made by those skilled in the art according to the technical solution of the present invention and the inventive concept thereof, and all such alterations and modifications should fall within the scope of the appended claims.
Claims (10)
1. The utility model provides a steam generator's liquid level detection device, its characterized in that, keeps apart protective tube, floater and hall circuit control board including detecting, hall circuit control board sets up in detecting and keeps apart the protective tube, the floater sliding sleeve is located on detecting and keeps apart the protective tube, it is provided with the first retaining ring of control floater rise on the protective tube to detect to keep apart, and the floater is located the below of first retaining ring, still be provided with hall element in detecting and keeping apart the protective tube, be provided with the hall response piece with hall element adaptation in the floater, hall element is connected with hall circuit control board electricity.
2. The liquid level detection apparatus of the steam generator according to claim 1, wherein the hall element is installed at the same height as the first check ring.
3. The liquid level detection device of the steam generator as claimed in claim 1 or 2, wherein the detection isolation protection tube is provided with a second retainer ring for controlling the descending height of the floating ball, and the floating ball is positioned between the first retainer ring and the second retainer ring.
4. The liquid level detection device of the steam generator according to claim 1, wherein the floating ball comprises an upper shell, a lower shell and a stainless steel sleeve, the upper shell and the lower shell are provided with a connecting hole at the middle part, the upper shell and the lower shell are hermetically connected, the connecting hole is connected through the stainless steel sleeve to form a ball body with a through hole at the middle part, and the Hall sensor is sleeved on the stainless steel sleeve.
5. The liquid level detection apparatus of the steam generator according to claim 3, wherein the Hall element is a high temperature resistant Hall element, and the Hall sensor is a high temperature resistant powerful magnet.
6. The liquid level detection device of the steam generator according to claim 4, wherein the stainless steel sleeve is further provided with a baffle ring, and the baffle ring is arranged at two ends of the Hall sensor.
7. The liquid level detection device of the steam generator according to claim 4 or 6, wherein the upper and lower casings are stainless steel casings, the upper and lower casings are welded, and both ends of the stainless steel casing are welded to the connection holes of the upper and lower casings, respectively.
8. The liquid level detection device of the steam generator according to claim 1, wherein a lead electrically connected to an external control device is disposed in the detection isolation protection tube, one end of the lead is electrically connected to the hall circuit control board, and the other end of the lead extends out of the detection isolation protection tube.
9. A steam generator, including boiler body, master control unit and water supply installation, characterized by, still include the liquid level detection device of any one of claims 1-8, the liquid level detection device sets up in the boiler body, liquid level detection device and water supply installation all are connected with main control unit electricity, when liquid level detection device detects liquid and reaches minimum liquid level in the boiler body, main control unit makes water supply installation supply water to in the boiler body, and when liquid level detection device detected liquid and reaches the highest liquid level in the boiler body, main control unit made water supply installation stop to supply water to in the boiler body.
10. The steam generator according to claim 9, wherein the boiler body includes a water level communication pipe provided at one side of the boiler body, the liquid level detection device is provided in the water level communication pipe, and a bottom of the water level communication pipe is higher than a bottom of the boiler body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120335707.3U CN214538170U (en) | 2021-02-05 | 2021-02-05 | Steam generator and liquid level detection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120335707.3U CN214538170U (en) | 2021-02-05 | 2021-02-05 | Steam generator and liquid level detection device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214538170U true CN214538170U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120335707.3U Active CN214538170U (en) | 2021-02-05 | 2021-02-05 | Steam generator and liquid level detection device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214538170U (en) |
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2021
- 2021-02-05 CN CN202120335707.3U patent/CN214538170U/en active Active
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Effective date of registration: 20230411 Address after: 318001 North 1st and 2nd floors of Building 2, No. 888 Development Avenue East Section, Haihong Street, Taizhou Bay New Area, Taizhou City, Zhejiang Province (self declared) Patentee after: Taizhou Tanyou Intelligent Technology Co.,Ltd. Address before: 318000 Room 303, building 4, 188 Kaifa Avenue East, Xiachen street, Taizhou Bay New District, Taizhou City, Zhejiang Province Patentee before: Taizhou hot friends Intelligent Technology Co.,Ltd. |