CN211177434U - Electrode type hot water boiler - Google Patents
Electrode type hot water boiler Download PDFInfo
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- CN211177434U CN211177434U CN201921788638.0U CN201921788638U CN211177434U CN 211177434 U CN211177434 U CN 211177434U CN 201921788638 U CN201921788638 U CN 201921788638U CN 211177434 U CN211177434 U CN 211177434U
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Abstract
The utility model relates to an electrode type hot water boiler, which comprises a boiler barrel communicated with a boiler insulation water inlet pipe and a boiler insulation water outlet pipe, wherein a boiler water distributor is arranged inside the boiler barrel, a lower fixed insulation barrel and an upper fixed insulation barrel are arranged above the boiler barrel, a phase electrode is arranged between the upper fixed insulation barrel and the lower fixed insulation barrel, and a zero electrode is concentrically sleeved outside the boiler barrel; the movable insulation adjusting cylinder capable of moving up and down is arranged between the phase electrode and the zero electrode, cold furnace water enters from a boiler insulation water inlet pipe at the lower part of the electrode type hot water boiler and enters the outer side of the phase electrode through a boiler water distributor and a lower fixed insulation cylinder, the cold furnace water flows out from the space between the phase electrode and the upper fixed insulation cylinder and the space between the phase electrode and the lower fixed insulation cylinder in a scattered mode, when flowing through the space between the phase electrode and the zero electrode, a heating effect is generated due to the existence of the resistance of the furnace water, the resistance of the water between the phase electrode and the zero electrode can be adjusted when the movable insulation adjusting cylinder moves up and down, and therefore the heating power.
Description
Technical Field
The utility model relates to a boiler technical field, concretely relates to electrode type boiler.
Background
At present, relevant policies of electric heat storage and peak regulation projects are issued successively in the northeast, northwest, Xinjiang and other areas of China, relevant policies of electric heat storage and heating projects are issued successively in some areas, electrode boilers are adopted in large batches, however, the electrode boiler market is occupied by foreign enterprises for a long time, and domestic products are different and have great significance.
In the prior art, the current electrode boiler mainly adopts a plurality of rod-shaped electrodes, the structure is complex, the installation work amount is large, the adjustment is difficult, inert gas needs to be filled in the boiler and is supplemented periodically, the operation cost is high, and the operation amount is large.
Disclosure of Invention
In order to solve the problems, the utility model provides an electrode type hot water boiler which has compact structure, small boiler barrel volume and convenient installation and arrangement; the thermal load adjusting range is wide (can reach 5% -100%), and the operation is rapid (the time from a temperature state to full load is about 15 minutes); the electrode type hot water boiler runs in full water without filling inert gas; the operation is safe, and the risk of dry burning of the boiler is avoided; the operating voltage range is wide and can reach 1-20 kV.
The electrode type hot water boiler of the utility model comprises a boiler barrel, wherein the boiler barrel is respectively communicated with a boiler insulation water inlet pipe and a boiler insulation water outlet pipe; a boiler water distributor is arranged in the boiler tube, a lower fixed insulating tube is arranged above the boiler water distributor, an upper fixed insulating tube is arranged above the lower fixed insulating tube, a phase electrode is arranged between the upper fixed insulating tube and the lower fixed insulating tube, and a zero electrode with a cylindrical structure is concentrically sleeved outside the phase electrode; a cylindrical movable insulation adjusting cylinder is arranged between the phase electrode and the zero electrode and can move up and down; when the movable insulation adjusting cylinder moves up and down, the resistance of water between the phase electrode and the zero electrode can be adjusted, so that the heating power is adjusted.
The electrode type hot water boiler comprises a servo mechanism, an insulating cylinder lifting mechanism and an insulating cylinder lifting mechanism servo transmission rod, wherein the servo mechanism is connected with the insulating cylinder lifting mechanism through the insulating cylinder lifting mechanism servo transmission rod, the insulating cylinder lifting mechanism is connected with a movable insulating adjusting cylinder, the servo mechanism controls the movable insulating adjusting cylinder through the insulating cylinder lifting mechanism servo transmission rod and the insulating cylinder lifting mechanism so that the movable insulating adjusting cylinder can be stopped at any place between a phase electrode and a zero electrode, and the load adjusting characteristic of the electric boiler is 5% -100% power stepless adjustment.
The boiler water distributor is positioned above the outlet of the boiler insulating water inlet pipe.
The phase electrode adopts a cylindrical structure, the number of the phase electrodes can be 1 or more per phase, the two ends of the phase electrode are sealed by arc-shaped plugging plates, the phase electrode is of a hollow structure, the upper end part and the lower end part of the phase electrode are respectively provided with holes, the upper end of the phase electrode is provided with a connecting piece, the connecting piece is connected with an electrode conducting rod through threads, and a ceramic sleeve is adopted between the electrode conducting rod and a boiler barrel and is matched with a graphite packing for insulating and sealing treatment.
The phase electrode is made of Q345 steel or copper.
And the phase electrode is externally coated with a conductive anticorrosive coating.
An insulating porcelain bushing is sleeved outside the electrode conducting rod, and the insulating porcelain bushing is hermetically connected with the boiler barrel through a porcelain bushing mechanical sealing device; and the electrode conducting rod penetrates through the insulating porcelain bushing and is electrically connected with a power bus outside the boiler barrel.
The insulating cylinder lifting mechanism is connected with the boiler cylinder in a sealing mode through the insulating cylinder lifting mechanism mechanical sealing device.
The zero electrode adopts a cylindrical structure, the material of the zero electrode is the same as that of the phase electrode, the zero electrode and the phase electrode are concentrically sleeved outside the phase electrode, the three-phase zero electrode is connected by an iron plate, the height of an electrode cylinder of the zero electrode is equivalent to that of the phase electrode, and the distance between the phase electrode and the zero electrode is 100-400mm according to different working voltages.
The upper fixed insulating cylinder, the lower fixed insulating cylinder and the movable insulating adjusting cylinder are made of PPH, PVDF or ceramic materials.
Compared with the prior art, the utility model discloses utilize the load regulation rate of the electrode type hot water boiler of above-mentioned structure can reach 5-100% generally. The electrode type hot water boiler is started quickly, and takes about 15 minutes when the boiler is in a warm state and the load is 0-100 percent; the operation is stable, and the device can operate in any load within the adjusting range for a long time; the adaptability to voltage is good.
Drawings
Fig. 1 is a schematic view of an electrode type hot water boiler according to the present invention.
Fig. 2 is a plan view of the arrangement of electrodes of the electrode hot water boiler of the present invention.
Detailed Description
The present invention is described in more detail below to facilitate an understanding of the invention.
As shown in fig. 1, the electrode type hot water boiler comprises a boiler barrel 15, wherein the boiler barrel 15 is respectively communicated with a boiler insulation water inlet pipe 17 and a boiler insulation water outlet pipe 13; a boiler water distributor 16 is arranged in the boiler tube 15, a lower fixed insulating tube 12 is arranged above the boiler water distributor 16, an upper fixed insulating tube 7 is arranged above the lower fixed insulating tube 12, a phase electrode 9 is arranged between the upper fixed insulating tube 7 and the lower fixed insulating tube 12, and a zero electrode 10 with a cylindrical structure is concentrically sleeved outside the phase electrode 9; a cylindrical movable insulation adjusting cylinder 11 is arranged between the phase electrode 9 and the zero electrode 10, and the movable insulation adjusting cylinder 11 can move up and down; cold boiler water (the conductivity is about 80us/cm when the conductivity is converted to 25 ℃, and can be adjusted according to actual conditions) enters from a boiler insulating water inlet pipe 17 at the lower part of the electrode type hot water boiler, enters the outer side of a phase electrode 9 through a boiler water distributor 16 and a lower fixed insulating cylinder 12, and flows out from a space between the phase electrode 9 and an upper fixed insulating cylinder 7 and a lower fixed insulating cylinder 12 in a scattered mode, when the cold boiler water flows between the phase electrode and a zero electrode, a heating effect is generated due to the resistance of the boiler water, and when the movable insulating adjusting cylinder 11 moves up and down, the resistance of the water between the phase electrode 9 and the zero electrode 10 can be adjusted, so that the heating power is adjusted.
The electrode type hot water boiler comprises a servo mechanism 1, an insulating cylinder lifting mechanism 14 and an insulating cylinder lifting mechanism servo transmission rod 2, wherein the servo mechanism 1 is connected with the insulating cylinder lifting mechanism 14 through the insulating cylinder lifting mechanism servo transmission rod 2, the insulating cylinder lifting mechanism 14 is connected with a movable insulating adjusting cylinder 11, the servo mechanism 1 controls the movable insulating adjusting cylinder 11 through the insulating cylinder lifting mechanism servo transmission rod 2 and the insulating cylinder lifting mechanism 14, so that the movable insulating adjusting cylinder 11 can be stopped at any place between a phase electrode 9 and a zero electrode 10, the lowest load of the electrode boiler manufactured by the method is about 5% of the rated load, and the position of the movable insulating cylinder can be controlled by the servo mechanism to be stopped at any place, so that the load adjusting characteristic of the electric boiler is 5% -100% power stepless adjustment.
The boiler water distributor 16 is positioned above the outlet of the boiler insulation water inlet pipe 17.
The phase electrode 9 adopts a cylindrical structure, two ends of the phase electrode are sealed by arc-shaped plugging plates, the phase electrode is of a hollow structure, holes are respectively formed in the upper end part and the lower end part of the phase electrode for reducing the buoyancy of water and the vibration and torsion of water flow impact force on the phase electrode, when the electrode type hot water boiler is filled with water, the electrode can be filled with water, the upper end of the phase electrode is provided with a connecting piece, the connecting piece is connected with an electrode conducting rod 8 through threads, and a ceramic sleeve and a graphite packing can be adopted between the electrode conducting rod and a boiler barrel for insulating and sealing treatment; the phase electrode material can be Q345 steel, copper and the like, the wall thickness of the phase electrode can be selected from 7mm or selected according to the electrode current calculation of the electrode type hot water boiler, and a copper sheath can be lined in the phase electrode cylinder for reducing resistance and balancing current distribution; in order to avoid the phase electrode from rusting, the phase electrode can be coated with a conductive anticorrosive coating such as nickel, aluminum and the like.
In the embodiment shown in fig. 1, an insulating porcelain bushing 6 is sleeved outside the electrode conducting rod 8, and the insulating porcelain bushing 6 is hermetically connected with a boiler barrel 15 through a porcelain bushing mechanical sealing device; the electrode conducting rod 8 penetrates through the insulating porcelain bushing 6 and then is electrically connected with the power supply bus 4 outside the boiler furnace tube 15.
The insulating cylinder lifting mechanism 14 is hermetically connected with the boiler cylinder 15 through the insulating cylinder lifting mechanism mechanical sealing device 3.
The zero electrode 10 adopts a cylindrical structure, the same-phase electrode 9 is made of materials and sleeved outside the phase electrode in a concentric mode with the phase electrode 9, the three-phase zero electrode is connected through an iron plate, the height of a zero electrode cylinder is equivalent to that of the phase electrode, and the distance between the phase electrode and the zero electrode can be 100-400mm or wider according to different working voltages.
The upper fixed insulating cylinder 7, the lower fixed insulating cylinder 12 and the movable insulating adjusting cylinder 11 are made of materials such as PPH, PVDF and ceramics, the materials can control the circulation path of current in water, the maximum tolerance temperature of the upper fixed insulating cylinder 7, the lower fixed insulating cylinder 12 and the movable insulating adjusting cylinder 11 is considered in the operation temperature of the boiler, the allowable temperature cannot be exceeded, so that the faults such as softening, deformation and welding are prevented, and the temperature of the boiler made of the PPH materials is not more than 120 ℃.
The furnace water is generally desalted water matched with Na3PO4The conductivity was adjusted to 80us/cm (value at 25 ℃), and could not be too high or too low.
In consideration of the requirement of boiler water quality, boiler water of the electrode type hot water boiler is circulated in a closed circulation system (a primary network system for short), wherein the primary network system comprises a plate heat exchanger, and the plate heat exchanger is connected with the electrode type hot water boiler to form the boiler closed circulation water system. The process flow is as follows:
the hot boiler water flows into the plate heat exchanger through the boiler insulation water outlet pipe 13, heat is transmitted to a hot user through the plate heat exchanger by a boiler closed circulating water system, cold boiler water flows out through the plate heat exchanger, flows into the circulating pump after being filtered by the filter screen, and flows into the boiler through the boiler insulation water inlet pipe 17 after being boosted to be reheated, and the process is repeated.
Proper temperature, pressure, conductivity, flow and other measuring points are set in the primary network system to know the operation conditions of the electrode type hot water boiler and the system.
Considering that the volume of boiler water expands in the temperature rise process, in order to reduce pressure fluctuation of a boiler and a primary network system, a pressure stabilizing device is arranged in the primary network system, when the pressure of the primary network system is too high, boiler water is discharged to a closed expansion water tank through a pressure release valve, and when the pressure of the primary network is too low, water in the expansion water tank is injected into the primary network system through a pressure stabilizing pump.
In order to ensure the stability of the boiler operation, a bypass valve is arranged for the plate heat exchanger of the primary network system, the heat exchange power of the plate heat exchanger is adjusted by adjusting the opening of the bypass valve, and finally the temperature of cold water at the inlet of the boiler is controlled to be stabilized at about 90 ℃, and the temperature at the outlet of the boiler is controlled to be 120 ℃.
The electrode type hot water boiler should be provided with a dosing tank using high concentration Na3PO4The solution is distributed into a boiler primary net system to adjust the conductivity of water in the primary net system.
In order to prevent the boiler from operating at overpressure, a safety door is arranged at the boiler body or the water inlet and outlet pipeline of the electrode type hot water boiler, and when the pressure of a primary network system is overlarge, the safety door starts to discharge water and release pressure.
In order to prevent human body from electric shock, a protective cover is arranged outside the electrode type hot water boiler, the protective cover is grounded and avoids metallic connection with the electrode type hot water boiler, and a boiler body shell of the electrode type hot water boiler is grounded.
The electrode type hot water boiler is provided with a control system synchronously, and mainly has the functions of controlling the position (and controlling power) of a movable insulation adjusting cylinder of the electrode type hot water boiler, controlling the supply and return water temperature of the electric boiler by controlling the opening degree of a bypass valve of a plate heat exchanger, controlling the pressure of a primary network system, monitoring the running states of the electrode type hot water boiler and the primary network system, and setting automatic adjustment and protection logics according to the design parameters of the electrode type hot water boiler, such as functions of one-key starting, boiler over-temperature, over-pressure, low-pressure tripping and the like.
In order to ensure safety, a high-voltage side circuit breaker of the electrode type hot water boiler power supply is provided with a proper relay protection device, so that the electrode type hot water boiler is protected from faults or abnormal working conditions such as grounding, short circuit, overload and the like.
The outer side of the electrode conducting rod of the electrode type hot water boiler is fixed on the shell through an insulating porcelain bushing, and a sealing measure for preventing water leakage is made.
The movable insulating cylinder lifting mechanism is provided with a mechanical sealing device at the position penetrating through the wall of the furnace cylinder, and a mode similar to valve sealing can be adopted.
The boiler insulation water inlet pipe 17 and the boiler insulation water outlet pipe 13 of the electrode type hot water boiler are made of insulation materials, the insulation materials can be solved in a mode that metal pipelines are lined with polytetrafluoroethylene, and insulation between the boiler water inlet pipe and the boiler water outlet pipe and a primary network pipeline can be solved in a mode that insulation short circuits are matched with insulation flanges.
In the embodiment shown in fig. 2, a phase a electrode set 91, a phase B electrode set 92 and a phase C electrode set 93 are provided in the boiler shaft 15, and each phase electrode set includes a separate phase electrode 9 and a movable insulation adjusting cylinder 11.
Electrode formula boiler have following advantage:
1. with the electrode system of the above structure, the load adjustment rate of the electrode type hot water boiler can reach 5-100% generally.
2. The electrode type hot water boiler is started quickly, and takes about 15 minutes when the boiler is in a warm state and the load is 0-100%.
3. The electrode type hot water boiler operates stably and can operate in any load within an adjusting range for a long time.
4. The adaptability to voltage is good.
The foregoing description of the preferred embodiments of the invention has been presented for purposes of illustration and description. Modifications and variations of the embodiments disclosed herein may be made by those skilled in the art without departing from the scope and spirit of the invention.
Claims (10)
1. An electrode type hot water boiler is characterized by comprising a boiler barrel, wherein the boiler barrel is respectively communicated with a boiler insulation water inlet pipe and a boiler insulation water outlet pipe; a boiler water distributor is arranged in the boiler tube, a lower fixed insulating tube is arranged above the boiler water distributor, an upper fixed insulating tube is arranged above the lower fixed insulating tube, a phase electrode is arranged between the upper fixed insulating tube and the lower fixed insulating tube, and a zero electrode with a cylindrical structure is concentrically sleeved outside the phase electrode; a cylindrical movable insulation adjusting cylinder is arranged between the phase electrode and the zero electrode and can move up and down; when the movable insulation adjusting cylinder moves up and down, the resistance of water between the phase electrode and the zero electrode can be adjusted, so that the heating power is adjusted.
2. The electrode type hot water boiler according to claim 1, wherein the electrode type hot water boiler comprises a servo mechanism, an insulation tube elevating mechanism and an insulation tube elevating mechanism servo transmission rod, the servo mechanism is connected with the insulation tube elevating mechanism through the insulation tube elevating mechanism servo transmission rod, the insulation tube elevating mechanism is connected with the movable insulation adjusting tube, the servo mechanism controls the movable insulation adjusting tube through the insulation tube elevating mechanism servo transmission rod and the insulation tube elevating mechanism, so that the movable insulation adjusting tube can be stopped at any place between a phase electrode and a zero electrode, and the load adjusting characteristic of the electrode type hot water boiler is 5% -100% power stepless adjustment.
3. The electrode hot water boiler according to claim 1, wherein the boiler water distributor is located above an outlet of the boiler insulation water inlet pipe.
4. The electrode type hot water boiler according to claim 1, wherein the phase electrode has a cylindrical structure, both ends of the phase electrode are sealed by arc-shaped blocking plates, the phase electrode has a hollow structure, the upper and lower ends of the phase electrode are respectively provided with holes, the upper end of the phase electrode is provided with a connecting member, the connecting member is connected with the electrode conducting rod through a thread, and a ceramic sleeve is arranged between the electrode conducting rod and the boiler tube and is provided with a graphite packing for insulation sealing treatment.
5. The electrode hot water boiler according to claim 1, wherein the phase electrode is made of Q345 steel or copper.
6. The electrode hot water boiler according to any one of claims 1 to 5, wherein the phase electrodes are externally coated with a conductive anticorrosive coating.
7. The electrode hot water boiler according to claim 4, wherein an insulating porcelain bushing is sleeved outside the electrode conducting rod, and the insulating porcelain bushing is hermetically connected with the boiler barrel through a porcelain bushing mechanical sealing device; and the electrode conducting rod penetrates through the insulating porcelain bushing and is electrically connected with a power bus outside the boiler barrel.
8. The electrode hot water boiler according to claim 2, wherein the insulation tube elevating mechanism is hermetically connected to the boiler tube by a mechanical sealing device of the insulation tube elevating mechanism.
9. The electrode type hot water boiler as claimed in any one of claims 1 to 5, wherein the zero electrode is cylindrical, the material of the zero electrode is the same as that of the phase electrode, the zero electrode and the phase electrode are concentrically sleeved outside the phase electrode, the three-phase zero electrode is connected with the iron plate, the height of the electrode cylinder of the zero electrode is the same as that of the phase electrode, and the distance between the phase electrode and the zero electrode is 100-400mm according to the difference of the working voltage.
10. The electrode hot water boiler according to claim 1, wherein the upper fixed insulating cylinder, the lower fixed insulating cylinder and the movable insulating cylinder are made of PPH, PVDF or ceramics.
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CN201921788638.0U CN211177434U (en) | 2019-10-23 | 2019-10-23 | Electrode type hot water boiler |
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CN110631259A (en) * | 2019-10-23 | 2019-12-31 | 沈阳汇智源电力工程技术服务有限公司 | Electrode type hot water boiler |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN110631259A (en) * | 2019-10-23 | 2019-12-31 | 沈阳汇智源电力工程技术服务有限公司 | Electrode type hot water boiler |
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Address after: 1113, No.5-2 Tianci street, Hunnan New District, Shenyang City, Liaoning Province Patentee after: Shenyang huizhiyuan Electric Power Development Group Co.,Ltd. Address before: 1113, No.5-2 Tianci street, Hunnan New District, Shenyang City, Liaoning Province Patentee before: SHENYANG HUIZHIYUAN POWER ENGINEERING TECHNOLOGY SERVICE Co.,Ltd. |