CN110986376A - Condensate detection device and method - Google Patents
Condensate detection device and method Download PDFInfo
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- CN110986376A CN110986376A CN201911248116.6A CN201911248116A CN110986376A CN 110986376 A CN110986376 A CN 110986376A CN 201911248116 A CN201911248116 A CN 201911248116A CN 110986376 A CN110986376 A CN 110986376A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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Abstract
The invention relates to a condensate detection device and a condensate detection method, wherein the device comprises a floating assembly, a detection assembly and a detection module, wherein the floating assembly floats in a condensate collection cavity; the light intensity received by the photosensitive detection module changes along with the floating of the floating component relative to the bottom wall of the collection cavity, and the photosensitive detection module generates detection parameters which change along with the change of the light intensity received by the photosensitive detection module; and the controller sends out a fault signal when the detection parameter is within a preset range. Among the above-mentioned condensate detection device, the subassembly that floats along with the floating of condensate liquid level to can change the light intensity that photosensitive detection module received at the in-process that floats, and then the detection parameter that produces according to light intensity through photosensitive detection unit, alright indirect judgement the liquid level condition of condensate. In the detection process, the detection parameters are related to the intensity of the light received by the photosensitive detection module and are not related to the internal resistance of the condensate, so that detection errors caused by different internal resistances of the condensate in all parts of the country can be avoided, and the detection precision is improved.
Description
Technical Field
The invention relates to the technical field of condensing wall-mounted furnaces, in particular to a device and a method for detecting condensate.
Background
The gas heating water heater, also called a wall-hanging boiler, can be divided into a conventional wall-hanging boiler and a condensing wall-hanging boiler. The condensing wall-mounted boiler carries out secondary heat exchange by utilizing high-temperature flue gas, so that the heat exchange efficiency of the whole machine is improved, and the energy efficiency of the unit is improved. However, the condensate water also becomes a problem to be considered and disposed of in the design of the wall-hanging stove of the condensing type.
In the condensing wall-hanging furnace structure, a condensing heat exchanger is a device for recovering the waste heat of flue gas. And condensed water generated by the secondary heat exchange of the high-temperature flue gas is accumulated in the collecting cavity and is discharged through a water discharging path communicated with the collecting cavity. However, when the water outlet is blocked, condensed water in the collecting cavity cannot be discharged in time, the condensed water is accumulated in the collecting cavity continuously, and the condensed water flows back into the hearth in the continuous rising process, so that core components such as the fan, the proportional valve and the burner are filled with water, and the unit is damaged due to faults. Therefore, a fault sensing device is required to be arranged, when the blockage of the condensate water outlet is detected, the alarm feedback is timely carried out, and the unit is protected.
Generally, a way of detecting the blockage fault is electrode detection, that is, a detection electrode is installed in a collection cavity of the condensate by utilizing the conductivity of the condensate, and a detection circuit monitors whether the condensate rises to submerge the detection electrode to conduct the detection electrode, so as to judge whether the condensate is blocked. However, the components of domestic natural gas sources are not uniform, the acidity of flue gas after combustion is inconsistent, and the internal resistance difference of generated condensate is large. Therefore, after the detection electrode is submerged by the condensate, the detection circuit cannot accurately reflect the liquid level condition of the condensate due to different conduction time points of the detection circuit caused by different internal resistances of the condensate, a fault signal cannot be timely sent out when the water level of the condensate reaches the warning water level, and the detection precision is low.
Disclosure of Invention
Accordingly, it is necessary to provide a condensate detecting apparatus having high detection accuracy.
A condensate detection apparatus comprising:
the floating assembly floats in the condensate collecting cavity;
the light intensity received by the photosensitive detection module changes along with the floating of the floating assembly relative to the bottom wall of the collection cavity, and the photosensitive detection module generates detection parameters which change along with the change of the light intensity received by the photosensitive detection module;
and the controller sends out a fault signal when the detection parameter is within a preset range.
Among the above-mentioned condensate detection device, the subassembly that floats along with the floating of condensate liquid level to can change the light intensity that photosensitive detection module received at the in-process that floats, and then the detection parameter that produces according to light intensity through photosensitive detection unit, alright indirect judgement the liquid level condition of condensate. When the liquid level of condensate reached the warning liquid level, drive the subassembly of floating to the extreme position, the light intensity that photosensitive detection subassembly received is changed the extreme intensity by the subassembly of floating, and then the detection parameter that photosensitive detection subassembly produced can enter into the predetermined range, explains that the liquid level of condensate is higher this moment, has appeared the comdenstion water jam fault, needs the fault signal of sending, makes condensing hanging stove shut down to the protection unit. In addition, in the detection process, the detection parameters are related to the intensity of the light received by the photosensitive detection module and are not related to the internal resistance of the condensate, and detection errors caused by different internal resistances of the condensate all over the country can be avoided. Meanwhile, the floating assembly is driven to float through the liquid level change of the condensate liquid, so that the light intensity received by the photosensitive detection module is changed, the condensate water in the whole detection process cannot be directly associated with the detection module, but is converted into light change, the performance of the condensate water is prevented from influencing the detection result, and the detection precision is improved.
In one embodiment, the photosensitive detection module comprises a light source and a detection circuit, the floating component can change the intensity of light emitted by the light source to the detection circuit when floating relative to the bottom wall of the collection cavity, and the detection circuit generates different detection parameters according to different received light intensities.
In one embodiment, the detection circuit comprises a power supply and a photosensitive unit, wherein the photosensitive unit is connected between the positive pole and the negative pole of the power supply and at least provided with a photosensitive resistor;
the light source is arranged in the light source, the floating assembly is arranged on the light source, the light source is arranged on the light sensitive resistor, the light sensitive resistor is arranged on the light source, the light source emits light rays, the floating assembly shields or staggers the light rays emitted by the light source when floating, and the detection parameters are electrical performance parameters of the light sensitive unit.
In one embodiment, the photoresistor is connected in series between the positive electrode and the negative electrode of the power supply, the detection parameter is a real-time current value of the photoresistor, and the controller sends out a fault signal when the real-time current value is within a preset current range.
In one embodiment, the light sensitive cell further comprises a first resistor in series with the light sensitive resistor;
the detection parameter is the partial voltage of the photoresistor or the first resistor, and when the partial voltage of the photoresistor or the first resistor is within a preset partial voltage range, the controller sends out a fault signal.
In one embodiment, the light sensitive cell further comprises a second resistor in parallel with the light sensitive resistor;
the detection parameter is the partial current of the photoresistor, and when the partial current is within a preset partial current range, the controller sends out a fault signal.
In one embodiment, the floating assembly comprises a floating member and a light barrier, and the light barrier is fixed on the floating member and floats along with the floating member in the direction of shielding and separating from the light source.
In one embodiment, a limiting shell is arranged on the bottom wall of the collecting cavity, a water through hole is formed in the limiting shell in a penetrating mode, the floating piece can be arranged in the limiting shell in a floating mode, one end of the light barrier is connected with the floating piece, and the other end of the light barrier extends out of the limiting shell and floats relative to the limiting shell.
In one embodiment, the length of the light barrier protruding from the floating member is adjustable in a direction opposite to the direction of gravity of the light barrier.
In one embodiment, the floating assembly further includes an adjusting member, an adjusting groove is formed in the floating member along the gravity direction of the light barrier, the light barrier is movably disposed in the adjusting groove, and the adjusting member is disposed on the floating member and fixes the light barrier adjusted to a preset position or allows the light barrier to move.
In one embodiment, the light source module further comprises a dark room, the dark room is located in the direction opposite to the gravity direction of the light barrier, the light source and the photoresistor are oppositely arranged in the dark room, and one end, far away from the floating piece, of the light barrier extends into the dark room and is arranged between the light source and the photoresistor in a floating mode.
The invention also provides a condensing wall-mounted furnace which comprises the condensate detection device.
The invention also provides a condensate detection method, which comprises the following steps:
acquiring detection parameters of a photosensitive detection module;
when the detection parameters are in a preset range, sending out a fault signal;
the detection parameters are related to the intensity of light received by the photosensitive detection module, and the intensity of light received by the photosensitive detection module is related to the liquid level height of the condensate.
Drawings
FIG. 1 is a schematic structural diagram of a condensate detection device according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a condensate detection device according to another embodiment of the present invention;
fig. 3 is a schematic structural diagram of a condensed water detection device according to another embodiment of the present invention.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" 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.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
In one embodiment of the invention, the condensing wall-mounted furnace comprises a combustion assembly, a main heat exchanger, a condensing heat exchanger and a water pipe, wherein the water pipe is connected between the main heat exchanger and the condensing heat exchanger, so that water flow can flow through the main heat exchanger and the condensing heat exchanger to exchange heat twice. Specifically, the heat that the natural gas burning produced in the burning assembly exchanges heat with the rivers in the main heat exchanger to the rivers in the heating main heat exchanger, the high temperature flue gas that the burning produced in the burning assembly gets into in the condensation heat exchanger and carries out the secondary heat transfer with rivers moreover, makes the rivers in the condensation heat exchanger absorb the waste heat of high temperature flue gas, and so, rivers carry out the heat transfer twice in main heat exchanger and condensation heat exchanger, and heat exchange efficiency is higher.
In some embodiments, the wall-mounted condensing furnace further comprises a water seal device connected to the condensing heat exchanger for discharging condensed water generated by condensing flue gas in the condensing heat exchanger, and a certain amount of condensed water is accumulated in the water seal device to form a water seal, thereby preventing gas containing toxic substances in the condensing heat exchanger from leaking to the external environment.
As shown in fig. 1-3, in some embodiments, the wall-mounted condensing furnace further includes a condensate detecting device 100 for detecting a liquid level in a condensate collecting chamber 200 of the wall-mounted condensing furnace, and when a drainage path communicated with the collecting chamber 200 is blocked and the liquid level of the condensate reaches a warning level, a fault signal is sent to control the wall-mounted condensing furnace to stop, so as to prevent the condensate from being poured into the furnace chamber and protect the wall-mounted condensing furnace. It should be noted that, for a condensing wall-mounted boiler without a water seal device, the condensed water collecting cavity 200 is an inner cavity of a shell of the condensing heat exchanger; to the condensing hanging stove that is provided with water seal arrangement, the collection chamber 200 of comdenstion water is water seal arrangement's inner chamber, does not do the restriction here to the collection chamber 200 of comdenstion water, can gather the comdenstion water that the condensing heat exchanger produced can.
The condensate detecting device 100 comprises a floating assembly 10, a photosensitive detection module 30 and a controller (not shown), wherein the floating assembly 10 floats in a condensate collecting cavity 200, the intensity of light received by the photosensitive detection module 30 changes along with the floating of the floating assembly 10 relative to the bottom wall of the collecting cavity 200, the photosensitive detection module 30 generates detection parameters which change along with the intensity of light received by the photosensitive detection module, and the controller sends out a fault signal when the detection parameters are within a preset range.
That is to say, the floating assembly 10 floats along with the floating of the condensate liquid level, and can change the light intensity received by the photosensitive detection module 30 in the floating process, and then can indirectly judge the liquid level condition of the condensate according to the detection parameters generated by the light intensity through the photosensitive detection unit. When the liquid level of condensate reached the warning liquid level, drive floating assembly 10 and go up to float extreme position, the light intensity that photosensitive detection subassembly received is changed extreme intensity by floating assembly 10, and then the detection parameter that photosensitive detection assembly produced can enter into the preset range, explains that the liquid level of condensate is higher this moment, has appeared comdenstion water jam fault, needs the fault signal of sending out, makes condensing hanging stove shut down to the protection unit.
In addition, in the detection process, the detection parameters are related to the intensity of the light received by the photosensitive detection module 30 and are not related to the internal resistance of the condensate, so that detection errors caused by different internal resistances of the condensate all over the country can be avoided. Meanwhile, the floating assembly 10 is driven to float through the liquid level change of the condensate liquid, so that the light intensity received by the photosensitive detection module 30 is changed, the condensate water in the whole detection process cannot be directly associated with the detection module, but is converted into light change, the performance of the condensate water is prevented from influencing the detection result, and the detection precision is improved.
The photosensitive detection module 30 comprises a light source 32 and a detection circuit 33, the intensity of light emitted from the light source 32 to the detection circuit 33 can be changed when the floating assembly 10 floats relative to the bottom wall of the collection chamber 200, and the detection circuit 33 generates different detection parameters according to different received light intensities so as to reflect the liquid level condition of condensate in real time. So, float through the condensate liquid level and drive the subassembly 10 that floats, the displacement change when the subassembly 10 that floats can be used to change the light intensity that light source 32 launched on detection circuitry 33, alright make the detection parameter change when light intensity changes, and be used for with predetermineeing the scope comparison to indirectly obtain the liquid level condition.
The detection circuit 33 includes a power source (not shown) and a light-sensitive unit 34, and the light-sensitive unit 34 is connected between the positive and negative poles of the power source and has at least a light-sensitive resistor 341. The light-sensitive resistor 341 is located on the propagation path of the light emitted from the light source 32, and the light emitted from the light source 32 is shielded or staggered when the floating assembly 10 floats, so as to change the intensity of the light irradiated by the light source 32 onto the light-sensitive resistor 341, and further change the electrical parameters, such as the voltage value and the current value, of the light-sensitive unit 34. The above detection parameters are electrical parameters of the light sensing unit 34, and when the intensity of the light received by the light surface resistor changes, the resistance of the light sensing resistor 341 changes accordingly, so as to change the electrical parameters of the light sensing unit 34. Therefore, by detecting the electrical property parameters of the photoresistor 341, the shielding condition of the floating component 10 on the light source 32 can be known, and the liquid level condition of the condensate can be known, so that a fault signal is sent out when the liquid level of the condensate reaches the warning liquid level, and the condensing wall-mounted furnace is closed in time.
As shown in fig. 1, in some embodiments, the photoresistor 341 is connected in series between the positive and negative electrodes of the power supply, the detection parameter is a real-time current value of the photoresistor 341, and the controller sends a fault signal when the real-time current value is within a preset current range. When the condensate discharging path is blocked, the condensate liquid level rises to drive the floating component 10 to float upwards, the floating component 10 gradually shields or staggers the light source 32, the light intensity received by the photosensitive resistor 341 changes, the resistance value of the photosensitive resistor 341 changes, and then the real-time current value changes, when the real-time current value changes to a preset range, the floating component 10 floats to the limit liquid level, and a fault signal needs to be sent at the moment. Specifically, in the embodiment, in the floating process of the femoral east component, the light source 32 is gradually shielded, the intensity of the light received by the photosensitive resistor 341 is reduced, the resistance value of the photosensitive resistor 341 is reduced, and the real-time current value is increased. When the real-time current value increases to a value equal to or greater than the current limit value, a fault signal is issued.
In other embodiments, as shown in fig. 2, the light-sensing unit 34 further includes a first resistor 343 connected in series with the light-sensing resistor 341, the detection parameter is the voltage divided by the light-sensing resistor 341 or the first resistor 343, and the controller sends out a fault signal when the voltage divided by the light-sensing resistor 341 or the first resistor 343 is within a preset range. In other words, the photo resistor 341 and the first resistor 343 are connected in series between the positive and negative electrodes of the power supply, and when the floating component 10 floats and gradually shields the light source 32, the resistance of the photo resistor 341 decreases, the total resistance of the circuit decreases, the total current increases, the divided voltage of the first resistor 343 increases, and the divided voltage of the photo resistor 341 decreases. When the partial voltage of the light dependent resistor 341 or the first resistor 343 enters the preset partial voltage range, it indicates that the condensate liquid level reaches the warning liquid level.
Specifically, a first preset partial voltage range is set corresponding to the first resistor 343, a second preset partial voltage range is set corresponding to the photo-resistor 341, and when the partial voltage of the first resistor 343 is increased to the preset first partial voltage range or the partial voltage of the photo-resistor 341 is decreased to the preset second partial voltage range, it is indicated that the liquid level of the condensate reaches the warning liquid level.
In still other embodiments, as shown in fig. 3, the light-sensitive unit 34 further includes a second resistor 345 connected in parallel with the light-sensitive resistor 341, which is equivalent to a smooth resistor connected in parallel with the second resistor 345 and then connected between the positive and negative poles of the power supply. The detection parameter is a partial current of the photoresistor 341, and when the partial current is within a preset partial current range, the controller sends out a fault signal. When the liquid level of the condensate rises to drive the floating assembly 10 to float, light emitted by the light source 32 is gradually shielded by the floating assembly 10, the resistance value of the photosensitive resistor 341 is gradually reduced, the divided current of the photosensitive resistor 341 gradually rises, the liquid level of the condensate rises to the warning liquid level when the divided current is known to be larger than or equal to the limit divided current and is within the preset divided current range, and the controller sends a fault signal.
In any of the above embodiments, the floating assembly 10 includes the floating member 12 and the light barrier 14, and the light barrier 14 is coupled to the floating member 12 and floats along with the floating member 12 in the direction of shielding and separating from the light source 32, so that the self-resistance of the photosensitive assembly changes after the intensity of the light received by the photosensitive assembly changes.
Further, the bottom wall of the collection cavity 200 is provided with a limiting shell 50, a water through hole 52 is formed in the limiting shell 50 in a penetrating manner, and the floating piece 12 can be arranged in the limiting shell 50 in a floating manner. When condensed water is accumulated in the collection cavity 200, the condensed water enters the limiting shell 50 through the water hole 52, the water level of the condensed water in the limiting shell 50 is consistent with the water level in the collection cavity 200 outside the limiting shell 50, so that the floating part 12 floats along with the accumulation of the condensed water in the limiting shell 50, and meanwhile, the floating part 12 is limited, and the floating part 12 is prevented from floating on the surface of the condensed water. One end of the light barrier 14 is connected to the floating member 12, and the other end of the light barrier 14 extends out of the limiting shell 50 opposite to the limiting shell 50 and floats, so as to block the light emitted from the light source 32 to the photo resistor 341.
Optionally, the length of the light barrier 14 projecting beyond the float 12 in the direction opposite to the direction of gravity of the light barrier 14 is adjustable to adjust the distance between the light barrier 14 and the light emitted by the light source 32, and thus the corresponding warning level when the light source 32 is blocked by the light barrier 14. For example, the shorter length of the light barrier 14 projecting beyond the float member 12 requires a higher float to enable the light source 32 to be blocked by the light barrier 14, and the warning level is higher; the length of the light barrier 14 projecting beyond the float 12 is relatively long and a relatively low float is required to enable the light source 32 to be blocked by the light barrier 14, at which time the surveillance level is relatively low. Therefore, the corresponding warning water level when a fault signal is sent can be adjusted by adjusting the length of the baffle plate protruding out of the floating piece 12, and the warning water level can be adjusted to a proper warning water level according to different conditions, so that the universality is increased, and the detection precision is further improved.
Specifically, the floating assembly 10 further includes an adjusting member 16, the floating member 12 is provided with an adjusting groove 121 along the gravity direction of the light barrier 14, the light barrier 14 is movably disposed in the adjusting groove 121, and the adjusting member 16 is disposed on the floating member 12 and fixes the light barrier 14 adjusted to a predetermined position or allows the light barrier 14 to move. That is, the light barrier 14 can be in an unlocked state by the adjusting member 16, the height of the protruding floating member 12 can be adjusted, and then the light barrier 14 adjusted to a predetermined position can be fixed in a limited manner by the adjusting member 16. Alternatively, the adjusting member 16 includes a bolt and a nut, a through groove 141 parallel to the adjusting groove 121 is formed on the light barrier 14, the bolt is disposed on the floating member 12 and passes through the through groove 141, and the light barrier 14 can be fixed or released by tightening or loosening the nut on the bolt, thereby achieving the position adjustment of the light barrier 14.
The condensate detecting device 100 further comprises a dark room 70, wherein the dark room 70 is located in the direction opposite to the gravity direction of the light barrier 14, the light source 32 and the light sensitive resistor 341 are oppositely arranged in the dark room 70, and one end of the light barrier 14, which is far away from the floating member 12, extends into the dark room 70 and is floatably arranged between the light source 32 and the light sensitive resistor 341. Therefore, the light source 32 and the photo resistor 341 are disposed in the darkroom 70 to prevent the external light from affecting the photo resistor 341, and the light intensity of the light source 32 irradiated on the photo resistor 341 is changed only by floating the light barrier 14, so as to ensure that the resistance change of the photo resistor 341 is not interfered by other external light.
In an embodiment of the present invention, the above-mentioned condensate detecting apparatus 100 further includes a floating component 10, a photosensitive detection module 30 and a controller, wherein the floating component 10 floats with the floating of the condensate liquid level, and the light intensity received by the photosensitive detection module 30 can be changed during the floating process, so that the liquid level condition of the condensate can be indirectly determined by the photosensitive detection unit according to the detection parameter generated by the light intensity. When the liquid level of condensate reached the warning liquid level, drive floating assembly 10 and go up to float extreme position, the light intensity that photosensitive detection subassembly received is changed extreme intensity by floating assembly 10, and then the detection parameter that photosensitive detection assembly produced can enter into the preset range, explains that the liquid level of condensate is higher this moment, has appeared comdenstion water jam fault, needs the fault signal of sending out, makes condensing hanging stove shut down to the protection unit.
In addition, in the detection process, the detection parameters are related to the intensity of the light received by the photosensitive detection module 30 and are not related to the internal resistance of the condensate, so that detection errors caused by different internal resistances of the condensate all over the country can be avoided. Meanwhile, the floating assembly 10 is driven to float through the liquid level change of the condensate liquid, so that the light intensity received by the photosensitive detection module 30 is changed, the condensate water in the whole detection process cannot be directly associated with the detection module, but is converted into light change, the performance of the condensate water is prevented from influencing the detection result, and the detection precision is improved.
In an embodiment of the present invention, there is also provided a condensate detecting method, including the steps of;
step S100, acquiring detection parameters of the photosensitive detection module 30;
and step S300, when the detection parameter is in a preset range, sending a fault signal.
The detection parameter is related to the intensity of the light received by the photosensitive detection module 30, and the intensity of the light received by the photosensitive detection module 30 is related to the height of the liquid level of the condensate. That is to say, when the condensate liquid level changes, the intensity of the light irradiated on the photosensitive detection module 30 changes, and then the detection parameters of the photosensitive detection module 30 change, which is equivalent to that the condensate liquid level changes are converted into the intensity of the light, and then the detection parameters are represented. And the preset range of the detection parameters can be set in advance, so that the preset range is equal to the corresponding detection parameter range after the liquid level of the condensate reaches the warning liquid level. Therefore, in the actual detection process, if the detection parameters are judged to be in the preset range, the condensate liquid level reaches the warning liquid level at the moment, and then a fault signal can be sent out, so that the condensing wall-mounted furnace is shut down, and the unit is protected.
In addition, in the detection process, the detection parameters are related to the intensity of the light received by the photosensitive detection module 30, and the feedback of the condensate is not directly conducted, so that the detection result is prevented from being influenced by factors such as the internal resistance of the condensate, and the detection precision is ensured.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (13)
1. A condensate detection apparatus, comprising:
a float assembly (10) floating within a condensate collection chamber (200);
the light-sensitive detection module (30) is used for receiving light intensity changes along with the floating of the floating component (10) relative to the bottom wall of the collection cavity (200), and the light-sensitive detection module (30) generates detection parameters which change along with the change of the light intensity received by the light-sensitive detection module;
and the controller sends out a fault signal when the detection parameter is within a preset range.
2. A condensate detection apparatus according to claim 1, wherein the photosensitive detection module (30) comprises a light source (32) and a detection circuit (33), the float assembly (10) being adapted to vary the intensity of light emitted by the light source (32) onto the detection circuit (33) when it floats relative to the bottom wall of the collection chamber (200), the detection circuit (33) being adapted to generate different detection parameters depending on the intensity of light received.
3. A condensate detection apparatus according to claim 2, wherein the detection circuit (33) comprises a power supply and a light sensitive unit (34), the light sensitive unit (34) being connected between the positive and negative poles of the power supply and having at least a light sensitive resistor (341);
the photoresistor (341) is located on a propagation path of light emitted by the light source (32), the floating assembly (10) shields or staggers the light emitted by the light source (32) when floating, and the detection parameter is an electrical property parameter of the photosensitive unit (34).
4. A condensate detection apparatus according to claim 3, wherein the light dependent resistor (341) is connected in series between the positive and negative poles of the power supply, the detection parameter is a real-time current value of the light dependent resistor (341), and the controller issues a fault signal when the real-time current value is within a preset current range.
5. A condensate detection apparatus according to claim 3, wherein the light sensitive unit (34) further comprises a first resistor (343) in series with the light sensitive resistor (341);
the detection parameter is the partial voltage of the photoresistor (341) or the first resistor (343), and the controller sends out a fault signal when the partial voltage of the photoresistor (341) or the first resistor (343) is within a preset partial voltage range.
6. A condensate detection apparatus according to claim 3, wherein the light sensitive unit (34) further comprises a second resistor (345) connected in parallel with the light sensitive resistor (341);
the detection parameter is the partial current of the photoresistor (341), and when the partial current is within a preset partial current range, the controller sends out a fault signal.
7. A condensate detection apparatus according to any one of the claims 2-6, wherein the float assembly (10) comprises a float member (12) and a light barrier (14), the light barrier (14) being coupled to the float member (12) and floating with the float member (12) in a direction to block and move away from the light source (32).
8. The condensate detecting device according to claim 7, wherein a limiting shell (50) is arranged on the bottom wall of the collecting cavity (200), a water through hole (52) is formed in the limiting shell (50) in a penetrating manner, the floating part (12) is arranged in the limiting shell (50) in a floating manner, one end of the light barrier (14) is connected with the floating part (12), and the other end of the light barrier (14) extends out of the limiting shell (50) and floats relative to the limiting shell (50).
9. A condensate detection device according to claim 7, characterized in that the length of the light barrier (14) protruding the float (12) is adjustable in a direction opposite to the direction of gravity of the light barrier (14).
10. A condensate detection apparatus according to claim 9, wherein the float assembly (10) further comprises an adjustment member (16), wherein the float member (12) is provided with an adjustment groove (121) along the gravity direction of the light barrier (14), the light barrier (14) is movably disposed in the adjustment groove (121), and the adjustment member (16) is disposed on the float member (12) and fixes the light barrier (14) adjusted to a preset position or allows the light barrier (14) to move.
11. A condensate detection apparatus according to claim 7, further comprising a dark chamber (70), wherein the dark chamber (70) is located in a direction opposite to a gravity direction of the light barrier (14), the light source (32) and the light dependent resistor (341) are oppositely disposed in the dark chamber (70), and an end of the light barrier (14) away from the float member (12) extends into the dark chamber (70) and is floatably disposed between the light source (32) and the light dependent resistor (341).
12. The condensing wall-mounted boiler is characterized by comprising the condensate detecting device (100).
13. A condensate detection method is characterized by comprising the following steps:
acquiring detection parameters of a photosensitive detection module (30);
when the detection parameters are in a preset range, sending out a fault signal;
the detection parameter is related to the intensity of light received by the photosensitive detection module (30), and the intensity of light received by the photosensitive detection module (30) is related to the liquid level height of condensate.
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| CN201911248116.6A CN110986376A (en) | 2019-12-09 | 2019-12-09 | Condensate detection device and method |
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| CN201911248116.6A CN110986376A (en) | 2019-12-09 | 2019-12-09 | Condensate detection device and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541836A (en) * | 2020-05-10 | 2020-08-14 | 王玉林 | Dust removal heat dissipation type watch-dog |
| CN111637951A (en) * | 2020-05-27 | 2020-09-08 | 广州大学 | Photosensitive emulsion liquid level detection device and atomization method |
| CN112900010A (en) * | 2021-01-15 | 2021-06-04 | 珠海格力电器股份有限公司 | Detergent feeding device, washing machine and control method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042618A (en) * | 1983-08-19 | 1985-03-06 | Mitsubishi Electric Corp | Liquid level detector of fluid heating device |
| CN101561308A (en) * | 2008-04-15 | 2009-10-21 | 杨振福 | Automobile fuel volume non-contact photoelectric sensor |
| CN202835798U (en) * | 2012-09-29 | 2013-03-27 | 中山华帝燃具股份有限公司 | Condensing water heater |
| CN204065847U (en) * | 2014-08-29 | 2014-12-31 | 赣州鑫隆康稀土有限公司 | A kind of device of automatic liquid level control |
| CN204434220U (en) * | 2014-12-18 | 2015-07-01 | 安徽合力股份有限公司 | A kind of bidirectional speed governing sensor |
| CN108344180A (en) * | 2017-01-24 | 2018-07-31 | 青岛经济技术开发区海尔热水器有限公司 | A kind of condensed type combustion gas heating stove |
-
2019
- 2019-12-09 CN CN201911248116.6A patent/CN110986376A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6042618A (en) * | 1983-08-19 | 1985-03-06 | Mitsubishi Electric Corp | Liquid level detector of fluid heating device |
| CN101561308A (en) * | 2008-04-15 | 2009-10-21 | 杨振福 | Automobile fuel volume non-contact photoelectric sensor |
| CN202835798U (en) * | 2012-09-29 | 2013-03-27 | 中山华帝燃具股份有限公司 | Condensing water heater |
| CN204065847U (en) * | 2014-08-29 | 2014-12-31 | 赣州鑫隆康稀土有限公司 | A kind of device of automatic liquid level control |
| CN204434220U (en) * | 2014-12-18 | 2015-07-01 | 安徽合力股份有限公司 | A kind of bidirectional speed governing sensor |
| CN108344180A (en) * | 2017-01-24 | 2018-07-31 | 青岛经济技术开发区海尔热水器有限公司 | A kind of condensed type combustion gas heating stove |
Non-Patent Citations (2)
| Title |
|---|
| 浦昭邦: "《光电测试技术》", 31 March 2010, 机械工业出版社 * |
| 陈吕洲: "《Arduino程序设计基础》", 31 January 2014, 北京航空航天大学出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111541836A (en) * | 2020-05-10 | 2020-08-14 | 王玉林 | Dust removal heat dissipation type watch-dog |
| CN111637951A (en) * | 2020-05-27 | 2020-09-08 | 广州大学 | Photosensitive emulsion liquid level detection device and atomization method |
| CN111637951B (en) * | 2020-05-27 | 2022-03-22 | 广州大学 | Photosensitive emulsion liquid level detection device and atomization method |
| CN112900010A (en) * | 2021-01-15 | 2021-06-04 | 珠海格力电器股份有限公司 | Detergent feeding device, washing machine and control method |
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