CN112503501A - Full submerged electrode boiler with internal water distributor structure - Google Patents
Full submerged electrode boiler with internal water distributor structure Download PDFInfo
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- CN112503501A CN112503501A CN202011424328.8A CN202011424328A CN112503501A CN 112503501 A CN112503501 A CN 112503501A CN 202011424328 A CN202011424328 A CN 202011424328A CN 112503501 A CN112503501 A CN 112503501A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/28—Methods of steam generation characterised by form of heating method in boilers heated electrically
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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
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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
- F22B37/34—Adaptations of boilers for promoting water circulation
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Abstract
The application discloses a full submerged electrode boiler with an internal water distributor structure, which comprises a boiler shell, a phase electrode, a zero-position electrode and an isolation shield, wherein the phase electrode and the zero-position electrode are fixed in the boiler shell, the phase electrode is positioned in the zero-position electrode, the isolation shield is movably arranged in the boiler shell, the isolation shield is positioned between the phase electrode and the zero-position electrode, the number of the phase electrode and the zero-position electrode is equal, the number of the phase electrode is an integral multiple of 3, the isolation shield is optional and further comprises a water distributor, a connecting pipe and a flexible sealing sheet, a circulating outlet is arranged on the boiler shell, the water distributor is arranged in the boiler shell, a water inlet port of the zero-position electrode is sealed by the flexible sealing sheet, a water outlet port of the zero-position electrode is in an open shape, a water inlet of the water distributor is communicated with the circulating outlet, a water outlet on the water distributor is communicated with a space in the zero-position electrode, the length of each connecting pipe is equal.
Description
Technical Field
The invention relates to the field of boilers, in particular to a fully submerged electrode boiler with an inner water distributor structure.
Background
Patent CN110375286A provides a fully submerged electrode steam boiler with a circulating device, the boiler uses three-phase electricity as power, three pairs of phase electrodes (reference number 2 in the literature) and zero-position electrodes (reference number 5 in the literature) are installed in a boiler shell, each pair of phase electrodes and zero-position electrodes conduct electricity by means of water between the two electrodes, and each phase electrode is connected with a live wire of the three-phase electricity. In the electrode steam boiler, a partition plate (reference number 6) is arranged in a boiler shell, the space in the boiler is divided into an upper part and a lower part by the partition plate, the upper part is water with higher temperature, the lower part is water with lower temperature, and the lower part of the low-temperature water gushes to a zero-position electrode and a phase electrode through a through hole (reference number 601 in documents) on the partition plate.
Because the water below the partition plate continuously gushes towards the phase electrodes and the zero-position electrodes, and the water inlet ends of the zero-position electrodes are in a completely open state, the water below the partition plate has a turbulent flow phenomenon when the water gushes towards the zero-position electrodes, so that the water flow flowing into each zero-position electrode in unit time is different, the water flow flowing through each zero-position electrode in unit time is different, further the water temperature in 3 zero-position electrodes is inconsistent, the water temperature is inconsistent, the water conductivity is different, the water resistance is different due to the different conductivity, the water flow flowing through 3 phase electrodes in unit time is different, and finally the resistances between three pairs of phase electrodes and the zero-position electrodes are inconsistent, and the power supply equipment is tripped due to the inconsistent resistances between the three pairs of phase electrodes and the zero-position electrodes. In summary, in order to avoid tripping, the electric boiler provided in patent CN110375286A must ensure that the water flow rate flowing into each zero-position electrode per unit time is consistent, and the completely open state of the water inlet end of the zero-position electrode determines that there is inevitably a situation where the water flow rate flowing into the zero-position electrode per unit time is inconsistent due to the turbulent water flow. Similarly, there are cases in which the electrical boilers as provided in patent CN108151298A and patent CN110068002A have inconsistent resistances between the three pairs of phase electrodes and the zero-position electrode due to the turbulent water flow.
Disclosure of Invention
The invention aims at the problems and provides a fully submerged electrode boiler with an internal water distributor structure.
The technical scheme adopted by the invention is as follows:
a fully submerged electrode boiler with an in-band water distributor structure comprises a boiler shell, a phase electrode, a zero position electrode and an isolation shield, wherein the phase electrode and the zero position electrode are fixed in the boiler shell, the phase electrode is positioned in the zero position electrode, the isolation shield is movably arranged in the boiler shell, the isolation shield is positioned between the phase electrode and the zero position electrode, the number of the phase electrode and the zero position electrode is equal, the number of the phase electrode and the number of the zero position electrode are integral multiples of 3, optionally, the boiler shell further comprises a water distributor, a connecting pipe and a flexible sealing sheet, a circulating outlet is arranged on the boiler shell, the water distributor is arranged in the boiler shell, a water inlet port of the zero position electrode is sealed by the flexible sealing sheet, a water outlet port of the zero position electrode is in an open state, a water inlet of the water distributor is communicated with the circulating outlet, and a water outlet on the water distributor is communicated with a space in the zero position electrode through the, the length of each connecting pipe is equal.
The boiler uses three-phase electricity as a power source, so the number of the phase electrodes is integral multiple of 3.
The working principle of the boiler is that firstly water leaving from a circulating outlet enters a distributor, the water further flows into a zero-position electrode from the distributor through a connecting pipe after the water is stabilized in the distributor, and a water inlet port of the zero-position electrode is blocked by a flexible sealing sheet, so that the water in a boiler shell cannot flow into the zero-position electrode (because the boiler shell is completely submerged, no water in the boiler shell enters the water outlet port of the zero-position electrode), the water in the zero-position electrode cannot flow out from the water inlet port, and the water in the zero-position electrode can only enter and leave from the distributor after being blocked by the flexible sealing sheet. Because the speeds of the water flows leaving the distributor are the same, the water flow flowing into each zero-position electrode in unit time is equal, and the water flow flowing out of each zero-position electrode in unit time is also equal, because the temperature of the water in the distributor is uniform, and the length of each connecting pipe is equal, the time from the water flow of the distributor to each zero-position electrode is also equal, so the heat exchange time between the water in the connecting pipes and the water in the boiler shell is also equal, the temperature of the water flowing into each zero-position electrode is also equal, so the water flow flowing into each zero-position electrode in unit time is equal, the water flow is also equal, the temperature during water flowing is also equal, the speed during water flowing is also equal, so the temperature of the water in each zero-position electrode is always in the equal state, and the water temperature is always equal, so that the resistance of the water is always equal, because the resistance between each pair of zero-position electrodes and the phase electrode is always in the equal state, the three-phase electricity is ensured not to trip.
Meanwhile, the water inlet port of the zero-position electrode is sealed by the flexible sealing sheet, and the flexible sealing sheet is used for moving the isolation shield between the phase electrode and the zero-position electrode all the time, so that the isolation shield is likely to collide with the flexible sealing sheet in the moving process, and the isolation shield (the isolation shield is made of ceramic in most cases and plastic in few cases) can be prevented from being damaged due to the adoption of the flexible sealing sheet; secondly, because the flexible sealing sheet is adopted to install the connecting pipe, the connecting pipe can be ensured to shake to a certain degree with the zero-position electrode, and a good sealing effect can still be ensured.
Simultaneously the uppermost water layer is the vaporization layer in this scheme mesochite shell, owing to adopted in the circulating water direct entering distributor directly gets into zero-bit electrode again, and the water in the zero-bit electrode is the zone of heating, because the intraformational water of heating can not the sinuous flow, is equivalent to the vaporization layer and the zone of heating separation with aquatic, so the kind of electric boiler kind zone of heating of this kind of structure can not lead to the fact the influence to the vaporization layer.
Meanwhile, the water turbulence entering the zero-position electrode is avoided, so that the scouring and cooling effects of the water flow on the phase electrode and the zero-position electrode are stronger, and the temperature rise of the phase electrode and the zero-position electrode can be effectively avoided.
Meanwhile, the distributor is arranged in the boiler shell, and the boiler shell is filled with water all the time, so that the distributor is protected, the distributor is prevented from being in a relatively low-temperature state, a certain protection effect is achieved on the distributor, and the distributor is prevented from being in an overheated state.
Therefore, utilize flexible gasket shutoff to block up the inlet port of zero-position electrode, adopt distributor and connecting pipe to wash by water in the zero-position electrode, have following beneficial effect:
1. the phenomenon of turbulent flow of water flow entering the zero-position electrodes is avoided, the resistance of water in each zero-position electrode is ensured to be always in the equal state, and the tripping phenomenon cannot occur;
2. the isolation shield is guaranteed not to be damaged in use and adjustment, and the use safety is guaranteed;
3. the separation of the vaporized water layer and the heating water layer in the boiler shell is realized, and the vaporized water layer is not influenced;
4. the water flow has stronger scouring and cooling effects on the zero-position electrode and the phase electrode.
Although patent CN111795496A also provides a boiler in which one end of the zero electrode is closed and then water is fed from one end of the zero electrode, the flow equalizing plate of the boiler and the side wall of the zero electrode are both open (water can pass through the holes to and from the zero electrode), so that the boiler with this structure actually has a plurality of water inlets, which is essentially the same as the solution provided by CN110375286A, so that the water still has a turbulent flow phenomenon, and only one water outlet and one water inlet of the zero electrode are ensured to avoid the turbulent flow phenomenon.
Optionally, the connecting pipe includes a first rigid pipe and a second rigid pipe, the first rigid pipe is fixed to the water outlet of the water separator in a sealing manner, the second rigid pipe is fixed to the flexible sealing sheet in a sealing manner in a penetrating manner, and the first rigid pipe and the second rigid pipe are fixedly matched together in a sealing manner.
Adopt first rigid pipe and second rigid pipe to connect boiler and distributor firstly for reducing the connection degree of difficulty between boiler and the distributor, secondly for guaranteeing that the fit clearance can not appear between connecting pipe and the flexible sealing piece.
Optionally, the first rigid pipe is a steel pipe, and the second rigid pipe is a ceramic pipe.
The sealing connection structure of concrete iron and steel pipe and ceramic pipe can have a variety, and the steel pipe and ceramic pipe connection structure that provides in patent CN110068001B is preferred to adopt in this scheme. Of course, one end of the ceramic tube can be directly embedded into the steel tube, and then a plurality of sealing rings made of fluororubber (which can resist high temperature of 150 degrees) can be embedded between the steel tube and the ceramic tube.
The distributor adopts the distributor to install the steel pipe, the flexible sealing sheet is run through the ceramic pipe of sealed installation, adopt the combination of above-mentioned steel pipe and ceramic pipe and adopt the shutoff of flexible sealing sheet to have following beneficial effect in this scheme, because it needs to supply the water of intaking constantly (from the water inlet of pot shell bottom) in the pot shell, so will have rivers constantly to strike distributor and zero-position electrode, must lead to so that there is certain relative rocking between distributor and the zero-position electrode, lead to even taking place vibrations jointly between zero-position electrode and the distributor.
If adopt the iron and steel union coupling between distributor and the zero position electrode based on above-mentioned situation, and the zero position electrode adopts iron and steel plate to seal, long-time water impact can lead to inevitably appearing the crack between iron and steel pipe and distributor or iron and steel pipe and the zero position electrode, and this kind directly adopts steel pipe connection distributor in case the unbalanced three-phase appears can lead to the distributor electrified, has huge potential safety hazard. Similarly, if only ceramic tubes are used for connection between the distributor and the zero electrode, although it is guaranteed that the distributor is absolutely not charged, the ceramic tubes themselves are brittle and break when subjected to a large impact (the brittleness of the ceramic material is described in the background of patent CN 110068001B). Therefore based on the defects of the ceramic tube and the steel tube which are used independently, the ceramic tube and the steel tube are combined in the structure, the ceramic tube is installed on the flexible sealing sheet, the steel tube is installed on the distributor, the ceramic tube is connected with the steel tube in a sealing mode, the distributor is guaranteed not to be electrified all the time, secondly, the steel tube is high in toughness and has certain deformability, the ceramic tube is installed on the flexible sealing sheet, impact shaking caused by water flow to the distributor or a zero-position electrode can be offset by displacement between the flexible sealing sheet and the ceramic tube, vibration cannot be transmitted between the distributor and the zero-position electrode, and the good toughness of the steel tube can guarantee that the whole connecting tube cannot break. To sum up, the distributor is guaranteed not to be electrified all the time through the combined use of the flexible sealing sheet, the ceramic pipe and the iron and steel pipe, vibration is not transmitted between the zero-position electrode and the distributor, and common vibration between the zero-position electrode and the distributor is avoided.
The scheme of adopting the flexible sealing sheet, the ceramic tube and the iron and steel tube has the following effects:
1. the distributor is ensured not to be electrified all the time; 2. vibration cannot be transmitted between the zero-position electrode and the distributor, and common vibration cannot occur between the zero-position electrode and the distributor.
Optionally, the flexible sealing sheet is made of fluororubber.
Good leakproofness can then be guaranteed to the flexible gasket of fluororubber material, and the flexible gasket of second fluororubber material is insulating, has just so played dual assurance effect with ceramic pipe, ensures that the distributor can not be electrified all the time. The flexible sealing sheet made of the specific fluororubber material is clamped and embedded at the opening of the zero-position electrode, a plurality of iron sheets are welded at the opening of the zero-position electrode to fix the flexible sealing sheet, a through hole is formed in the middle of the flexible sealing sheet, and the ceramic pipe is clamped and embedded at the through hole of the flexible sealing sheet.
Optionally, a water inlet is arranged at the bottom of the pot shell, and an outlet is arranged at the top of the pot shell.
The water inlet is a channel for fresh water to enter the shell, the outlet can be a steam outlet, when the outlet is the steam outlet, the boiler is an electrode steam boiler, and when the outlet is a hot water outlet, the boiler is an electrode hot water boiler.
Optionally, the isolation shield is a cylindrical isolation shield, and the phase electrode is a cylindrical phase electrode.
Optionally, the device further comprises a circulating pump, and the distributor is communicated with a circulating outlet on the pot shell through the circulating pump.
Optionally, there are 3 phase electrodes and three isolation shields.
The three phase electrodes are distributed in an equilateral triangle shape, the distributor is positioned at the center of the equilateral triangle, and the distances from the distributor to each phase electrode (namely, a zero position electrode) are equal, so that the difficulty in processing and mounting the connecting pipe is reduced.
The specific installation structure of the isolation shield, the phase electrode and the zero electrode is consistent with the scheme provided in patent CN 110375286A. In order to ensure the safety of the water level in the pot shell, a liquid level meter can be arranged on the pot shell.
Optionally, the isolation shield is movably mounted in the pot shell through a lifting mechanism.
Optionally, the distributor is a closed box, a water inlet and a water outlet are formed in the box, the water inlet of the box is communicated with the circulation outlet of the shell, and the water outlet of the box is used for installing a connecting pipe.
The distributor may be a steel box.
It should be noted that the overall structure of the boiler is the same as that of the boiler provided in patent CN110375286A, and the difference between the two is that a distributor, a flexible sealing sheet, a ceramic tube and an iron and steel tube are added, the flexible sealing sheet is used to block one end of a zero-position electrode, then the ceramic tube and the iron and steel tube are connected to the flexible sealing sheet, the iron and steel tube is connected to the distributor, and the distributor is communicated with a circulating pump. The circulating pump directly pumps water into the distributor and then enters the zero-position electrode through the steel pipe and the ceramic pipe.
The invention has the beneficial effects that:
1. the phenomenon of turbulent flow of water flow entering the zero-position electrodes is avoided, the resistance of water in each zero-position electrode is ensured to be always in the equal state, and the tripping phenomenon cannot occur;
2. the isolation shield is guaranteed not to be damaged in use and adjustment, and the use safety is guaranteed;
3. the separation of the vaporized water layer and the heating water layer in the boiler shell is realized, and the vaporized water layer is not influenced;
4. the water flow has stronger scouring and cooling effects on the zero-position electrode and the phase electrode.
Description of the drawings:
FIG. 1 is a schematic diagram of a fully submerged electrode boiler with an internal water distributor structure.
The figures are numbered: 1. the boiler comprises a boiler shell, 101, an outlet, 102, a water inlet, 103, a circulating outlet, 2, a liquid level meter, 3, a distributor, 301, a steel pipe, 302, a ceramic pipe, 4, a flexible sealing sheet, 401, a water inlet port, 402, a water outlet port, 5, a circulating pump, 6, a zero-position electrode, 7 and an isolation shield. 8. Phase electrode, 9, lifting mechanism.
The specific implementation mode is as follows:
the present invention will be described in detail below with reference to the accompanying drawings.
As shown in figure 1, the fully submerged electrode boiler with the internal water distributor structure comprises a boiler shell 1, a phase electrode 8, a zero-position electrode 6 and an isolation shield 7, wherein the phase electrode 8 and the zero-position electrode 6 are fixed in the boiler shell 1, the phase electrode 8 is positioned in the zero-position electrode 6, the isolation shield 7 is movably arranged in the boiler shell 1, the isolation shield 7 is positioned between the phase electrode 8 and the zero-position electrode 6, the number of the phase electrode 8 and the zero-position electrode 6 is equal, the number of the phase electrodes 8 is integral multiple of 3, as shown in figure 1, the fully submerged electrode boiler further comprises a water distributor, a connecting pipe and a flexible sealing sheet 4, a circulating outlet 103 is arranged on the boiler shell 1, the water distributor is arranged in the boiler shell 1, a water inlet port 401 of the zero-position electrode 6 is sealed by the flexible sealing sheet 4, a water outlet port 402 of the zero-position electrode 6 is in an open state, a water inlet 102 of the water distributor is communicated with the circulating outlet 103, a water outlet on the water, the length of each connecting pipe is equal.
The boiler uses three-phase electricity as a power source, so the number of the phase electrodes 8 is integral multiple of 3.
The working principle of the boiler is that firstly water leaving from the circulation outlet 103 enters the distributor 3, the water further flows into the zero-position electrode 6 from the distributor 3 through a connecting pipe after the flow speed of the water in the distributor 3 is stabilized, and the water inlet port 401 of the zero-position electrode 6 is blocked by the flexible sealing sheet 4, so that the water in the boiler shell 1 cannot flow into the zero-position electrode 6 (because the boiler shell is completely immersed, no water in the boiler shell 1 flows into the water outlet port 402 of the zero-position electrode 6), and the water in the zero-position electrode 6 cannot flow out from the water inlet port 401, so that the water in the zero-position electrode 6 can only flow into and leave from the distributor 3 after being blocked by the flexible sealing sheet 4. Because the speeds of the water flows leaving the distributor 3 are the same, the water flow rate flowing into each zero-position electrode 6 in unit time is equal, and the water flow rate flowing out of each zero-position electrode 6 in unit time is also equal, because the temperature of the water in the distributor 3 is uniform, and the length of each connecting pipe is equal, the time for the water of the distributor 3 to flow into each zero-position electrode 6 is also equal, so that the heat exchange time between the water in the connecting pipe and the water in the boiler shell 1 is also equal, the temperature of the water flowing into each zero-position electrode 6 is also equal, so that the water flow rate flowing into each zero-position electrode 6 in unit time is equal, the water flow rate flowing out is also equal, the temperature during water flowing is also equal, the speeds during water flowing are also equal, so that the temperature of the water in each zero-position electrode 6 is always in an equal state, therefore, the water temperature is always equal, so that the resistance of water is always equal, and the three-phase power cannot trip because the resistance between each pair of zero-position electrodes 6 and the phase electrode 8 is always in the equal state.
Meanwhile, the water inlet port 401 of the zero-position electrode 6 in the scheme is sealed by the flexible sealing sheet 4, and the flexible sealing sheet 4 has the following function that firstly, the isolation shield 7 always moves between the phase electrode 8 and the zero-position electrode 6, so that the isolation shield 7 is possible to collide with the flexible sealing sheet 4 in the moving process, and due to the adoption of the flexible sealing sheet 4, the isolation shield 7 (the isolation shield 7 is made of ceramic in most cases and is made of plastic in few cases, which can be referred to the description of patent CN 110068002A) can not be damaged by collision; secondly, because the flexible sealing sheet 4 is adopted to install the connecting pipe, the connecting pipe can be ensured to shake to a certain extent with the zero-position electrode 6, and a good sealing effect can still be ensured, because the pot shell 1 has water flow to impact the zero-position electrode 6 or the connecting pipe in the water inlet process, because the flexible sealing sheet 4 is adopted to install the connecting pipe, the sealing damage of the zero-position electrode 6 and the connecting pipe can be avoided, and the connecting pipe is ensured not to be broken.
Simultaneously the uppermost water layer is the vaporization layer in this scheme mesochite shell 1, owing to adopted the circulating water directly to get into in distributor 3 directly gets into zero-bit electrode 6 again, and the water in zero-bit electrode 6 is the zone of heating, because the intraformational water of heating can not the sinuous flow, is equivalent to the vaporization layer and the zone of heating separation with aquatic, so the kind of electric boiler kind zone of heating of this kind of structure can not lead to the fact the influence to the vaporization layer.
Meanwhile, the water turbulence entering the zero-position electrode 6 is avoided, so that the flushing cooling effect of the water flow on the phase electrode 8 and the zero-position electrode 6 is stronger, and the temperature rise of the phase electrode 8 and the zero-position electrode 6 can be effectively avoided.
Meanwhile, the distributor 3 is arranged in the boiler shell 1, and because the boiler shell 1 is filled with water all the time, the distributor 3 is protected, the distributor 3 is prevented from being in a relatively low-temperature state, the distributor 3 is protected to a certain extent, and the distributor 3 is prevented from being in an overheated state.
Consequently, utilize flexible sealing sheet 4 to block up water inlet port 401 of zero-position electrode 6, adopt distributor 3 and connecting pipe to wash by water in the zero-position electrode 6, have following beneficial effect:
1. the phenomenon of turbulent flow of water flow entering the zero-position electrode 6 is avoided, the resistance of water in each zero-position electrode 6 is ensured to be always in the equal state, and the tripping phenomenon cannot occur;
2. the isolation shield 7 is ensured not to be damaged in use and adjustment, and the use safety is ensured;
3. the separation of the vaporized water layer and the heating water layer in the boiler shell 1 is realized, and the vaporized water layer is not influenced;
4. the water flow has stronger scouring and cooling effects on the zero-position electrode 6 and the phase electrode 8.
As shown in fig. 1, the connecting pipe includes a first rigid pipe and a second rigid pipe, the first rigid pipe is fixed on the water outlet of the water separator in a sealing manner, the second rigid pipe is fixed on the flexible sealing sheet 4 in a sealing manner, and the first rigid pipe and the second rigid pipe are fixedly matched together in a sealing manner.
Adopt first rigid pipe and second rigid pipe to connect boiler and distributor 3 then for reducing the connection degree of difficulty between boiler and the distributor 3, then for guaranteeing that the fit clearance can not appear between connecting pipe and the flexible sealing strip 4.
As shown in fig. 1, the first rigid pipe is a steel pipe 301, and the second rigid pipe is a ceramic pipe 302.
The sealing connection structure of the steel pipe 301 and the ceramic pipe 302 can be various, and the connection structure of the steel pipe and the ceramic pipe 302 provided in patent CN110068001B is preferably adopted in the scheme.
In this scheme, distributor 3 adopts installation iron and steel pipe 301 on distributor 3, run through sealed installation ceramic pipe 302 on the flexible gasket 4, adopt the combination of above-mentioned iron and steel pipe 301 and ceramic pipe 302 and adopt the shutoff of flexible gasket 4 to have following beneficial effect in this scheme, because in pot shell 1 need supply the water of intaking constantly (from the water inlet 102 of pot shell 1 bottom), so will have rivers constantly to strike distributor 3 and zero-position electrode 6, must lead to so that there is certain relative rocking between distributor 3 and the zero-position electrode 6, lead to even that the common vibrations take place between zero-position electrode 6 and the distributor 3.
If the distributor 3 is connected with the zero-position electrode 6 through the steel pipe 301 based on the above conditions, and the zero-position electrode 6 is sealed through the steel plate, long-time water flow impact inevitably causes leaks between the steel pipe 301 and the distributor 3 or between the steel pipe 301 and the zero-position electrode 6, and once three-phase imbalance occurs in the distributor 3 which is directly connected through the steel pipe, the distributor 3 is electrified, and huge potential safety hazards exist. Similarly, if only ceramic tube 302 is used to connect distributor 3 to null electrode 6, while ensuring that distributor 3 is never charged, ceramic tube 302 itself is brittle and ceramic tube 302 itself will crack when subjected to a large impact (the brittleness of ceramic material is described in the background of patent CN 110068001B). Therefore, based on the above-mentioned defects of using the ceramic tube 302 and the steel tube 301 separately, in the present structure, the ceramic tube 302 and the steel tube 301 are used in combination, the ceramic tube 302 is mounted on the flexible sealing sheet 4, the steel pipe 301 is arranged on the distributor 3, the ceramic pipe 302 is connected with the steel pipe 301 in a sealing way, thus not only ensuring that the distributor 3 is not electrified all the time, but also ensuring that the distributor is not electrified because the steel pipe 301 has higher toughness, the flexible sealing sheet 4 has certain deformability, the ceramic tube 302 is arranged on the flexible sealing sheet 4, impact shaking caused by water flow to the distributor 3 or the zero-position electrode 6 can be offset by displacement between the flexible sealing sheet 4 and the ceramic tube 302, thereby guarantee can not transmit vibrations each other between distributor 3 and the zero-position electrode 6, and the good toughness of steel pipe 301 can guarantee that whole "connecting pipe" can not appear the fracture. In conclusion, the distributor 3 is ensured not to be electrified all the time, vibration is not transmitted between the zero-position electrode 6 and the distributor 3, and common vibration between the zero-position electrode 6 and the distributor 3 is avoided by the combined use of the flexible sealing sheet 4, the ceramic tube 302 and the steel tube 301.
The scheme of adopting the flexible sealing sheet 4, the ceramic tube 302 and the iron and steel tube 301 has the following effects:
1. the distributor 3 is ensured not to be electrified all the time; 2. vibration cannot be transmitted between the zero electrode 6 and the distributor 3, and common vibration cannot occur between the zero electrode 6 and the distributor 3.
As shown in fig. 1, the flexible sealing sheet 4 is a flexible sealing sheet 4 made of a fluororubber material.
Good leakproofness can be guaranteed on one hand to the flexible gasket 4 of fluororubber material, and on the other hand flexible gasket 4 of fluororubber material is insulating, has just so played dual assurance effect with ceramic pipe 302, ensures that distributor 3 can not electrified all the time.
As shown in fig. 1, a water inlet 102 is arranged at the bottom of the pot shell 1, and an outlet 101 is arranged at the top of the pot shell 1.
The inlet 102 is the passage for fresh water to enter the housing 1 and the outlet 101 may be the steam outlet 101, the boiler being an electrode boiler when the outlet 101 is the steam outlet 101, and an electrode boiler when the outlet 101 is the hot water outlet 101.
As shown in fig. 1, the isolation shield 7 is a cylindrical isolation shield 7, and the phase electrode 8 is a cylindrical phase electrode 8.
As shown in the attached figure 1, the device also comprises a circulating pump 5, and the distributor 3 is communicated with a circulating outlet 103 on the pot shell 1 through the circulating pump 5.
As shown in fig. 1, there are 3 phase electrodes 8 and three isolation shields 7.
The three phase electrodes 8 are distributed in an equilateral triangle shape, the distributor 3 is positioned at the center of the equilateral triangle, and the distances from the distributor 3 to each phase electrode 8 (namely the zero position electrode 6) are equal, so that the difficulty in processing and mounting the connecting pipe is reduced.
The specific installation structure of the isolation shield 7, the phase electrode 8 and the null electrode 6 is consistent with the scheme provided in patent CN 110375286A. In order to ensure the safety of the water level in the boiler shell 1, a liquid level meter 2 can be also arranged on the boiler shell 1.
As shown in fig. 1, the isolation shield 7 is movably mounted in the boiler shell 1 by a lifting mechanism 9.
As shown in fig. 1, the distributor 3 is a closed box, a water inlet 102 and a water outlet are formed in the box, the water inlet 102 of the box is communicated with a circulation outlet 103 of the shell, and the water outlet of the box is used for installing a connecting pipe.
The distributor 3 may be a steel box.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, which is defined by the claims and their equivalents, and can be directly or indirectly applied to other related fields of technology.
Claims (10)
1. A fully submerged electrode boiler with an in-band water distributor structure comprises a boiler shell, a phase electrode, a zero position electrode and an isolation shield, wherein the phase electrode and the zero position electrode are fixed in the boiler shell, the phase electrode is positioned in the zero position electrode, the isolation shield is movably arranged in the boiler shell, the isolation shield is positioned between the phase electrode and the zero position electrode, the number of the phase electrode and the zero position electrode is equal, the number of the phase electrode and the zero position electrode is integral multiple of 3, the fully submerged electrode boiler is characterized by further comprising a water distributor, a connecting pipe and a flexible sealing sheet, a circulating outlet is formed in the boiler shell, the water distributor is arranged in the boiler shell, a water inlet port of the zero position electrode is sealed by the flexible sealing sheet, a water outlet port of the zero position electrode is opened, a water inlet of the water distributor is communicated with the circulating outlet, and a water outlet of the water distributor is communicated with a space in the zero position electrode through the connecting pipe, the length of each connecting pipe is equal.
2. The boiler of claim 1, wherein the connecting pipe comprises a first rigid pipe and a second rigid pipe, the first rigid pipe is fixed on the water outlet of the water separator in a sealing manner, the second rigid pipe is fixed on the flexible sealing sheet in a sealing manner, and the first rigid pipe and the second rigid pipe are fixedly matched together in a sealing manner.
3. The fully submerged electrode boiler with an inner water distributor structure according to claim 1, wherein the first rigid pipe is a steel pipe, and the second rigid pipe is a ceramic pipe.
4. The boiler of fully submerged electrodes with internal water distributor structure as claimed in claim 1, wherein said flexible sealing sheet is a flexible sealing sheet made of fluororubber.
5. The fully submerged electrode boiler with an internal water distributor structure as claimed in claim 1, wherein the shell bottom of the shell is provided with a water inlet, and the shell top of the shell is provided with an outlet.
6. The boiler with fully submerged electrodes and internal water distributor structure as claimed in claim 1, wherein said shield is a cylindrical shield and said phase electrode is a cylindrical phase electrode.
7. The fully submerged electrode boiler with an internal distributor structure as claimed in claim 1, further comprising a circulation pump, wherein the distributor is in communication with a circulation outlet on the shell through the circulation pump.
8. The fully submerged electrode boiler with an internal water distributor structure as claimed in claim 1, wherein there are 3 phase electrodes and three isolation shields.
9. The fully submerged electrode boiler with an internal water distributor structure as claimed in claim 1, wherein the shield is movably mounted in the shell by means of a lifting mechanism.
10. The boiler with fully submerged electrodes and internal water distributor structure as claimed in claim 1, wherein the distributor is a closed box, the box is provided with a water inlet and a water outlet, the water inlet of the box is communicated with the circulation outlet of the shell, and the water outlet of the box is used for installing a connecting pipe.
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| CN202110970173.6A CN113654022B (en) | 2020-12-08 | 2020-12-08 | Full-submerged electrode boiler based on circulating pump linkage inner water distributor structure |
| CN202011424328.8A CN112503501B (en) | 2020-12-08 | 2020-12-08 | Full submerged electrode boiler with internal water distributor structure |
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| CN202011424328.8A CN112503501B (en) | 2020-12-08 | 2020-12-08 | Full submerged electrode boiler with internal water distributor structure |
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| CN202110970173.6A Division CN113654022B (en) | 2020-12-08 | 2020-12-08 | Full-submerged electrode boiler based on circulating pump linkage inner water distributor structure |
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| CN202110970173.6A Active CN113654022B (en) | 2020-12-08 | 2020-12-08 | Full-submerged electrode boiler based on circulating pump linkage inner water distributor structure |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113654022B (en) | 2023-02-28 |
| CN113654022A (en) | 2021-11-16 |
| CN112503501B (en) | 2021-09-21 |
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Denomination of invention: Fully submerged electrode boiler with internal water distributor structure Effective date of registration: 20221127 Granted publication date: 20210921 Pledgee: Dongguan Sub-branch of Zhejiang Shangyu Rural Commercial Bank Co.,Ltd. Pledgor: ZHEJIANG SHANGNENG BOILER Co.,Ltd. Registration number: Y2022330003250 |
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