Low-pressure electrode boiler and method thereof

Abstract

The present invention provides a low-voltage electrode boiler and a method thereof, belonging to the technical field of electrode boilers. The low-voltage electrode boiler comprises a support frame, at least three containers, a circulating water inlet pipe, a circulating water pump and a circulating water outlet pipe. The three containers are arranged on the support frame in sequence. The circulating water inlet pipe connects the water inlet ends of the three containers in sequence through the circulating water pump, and the circulating water outlet pipe connects the water outlet ends of the three containers in sequence. The present invention forms a distance between the positive and negative electrodes of a power supply to ensure safe operation. At the same time, a water resistor with a certain conductivity formed after the aqueous solution is energized can convert electrical energy into thermal energy, thereby ensuring high thermal efficiency and ultimately achieving the purpose of efficient energy saving and emission reduction.

Description

Technical Field

[0001] The present invention belongs to the technical field of electrode boilers, and in particular, relates to a low-pressure electrode boiler and a method thereof. Background Art

[0002] At present, due to the general trend of clean energy, electric heating boilers are increasingly valued and recognized by the market. However, most of the electric heating boilers currently in operation are electric heating tube heating boilers, high-frequency induction electromagnetic heating boilers or high-voltage electrode boilers. Although these electric heating boilers have their own advantages, they also have many shortcomings, and even insurmountable drawbacks, such as:

[0003] 1. The electric heating tube heating boiler is prone to scaling when heating water. In addition, the electric heating tube itself is a heating element, which is not only easy to damage but also has low thermal efficiency.

[0004] 2. High-frequency induction electromagnetic heating boilers have low thermal efficiency due to electromagnetic leakage, and expensive variable frequency power supply leads to high equipment investment.

[0005] 3. High-voltage electrode boilers are suitable for large-tonnage boilers, while small boilers cannot be used in hospitals, kindergartens, office buildings and small-area heating communities due to safety issues with high-voltage electricity. Summary of the invention

[0006] The embodiment of the present invention provides a low-voltage electrode boiler and a method thereof, wherein an aqueous solution is added between an inner tube and an outer tube, and the two form a positive electrode and a negative electrode of a power supply respectively, so that the positive and negative electrodes of the power supply are spaced apart to ensure safe operation. At the same time, after the aqueous solution is energized, a water resistor with a certain conductivity is formed, which can convert electrical energy into thermal energy, thereby ensuring high thermal efficiency, and ultimately achieving the purpose of efficient energy saving and emission reduction.

[0007] In view of the above problems, the technical solution proposed by the present invention is:

[0008] In a first aspect, the present invention provides a low-pressure electrode boiler, which includes a support frame, at least three containers, a circulating water inlet pipe, a circulating water pump and a circulating water outlet pipe, wherein the three containers are arranged in sequence on the support frame, the circulating water inlet pipe connects the water inlet ends of the three containers in sequence through the circulating water pump, and the circulating water outlet pipe connects the water outlet ends of the three containers in sequence.

[0009] As a preferred technical solution of the present invention, the three containers all include an outer shell and an inner cylinder arranged inside the outer shell, and pure water and a conductive water solvent are respectively added between the outer shell and the inner cylinder to form an aqueous solution.

[0010] As a preferred technical solution of the present invention, the conductive water solvent is trisodium phosphate (Na3PO4) solvent.

[0011] As a preferred technical solution of the present invention, the container also includes an insulating sleeve and a positive electrode introduction core rod, the insulating sleeve is sleeved on the positive electrode introduction core rod, one end of the insulating sleeve is inserted into the upper port of the outer shell, and the positive electrode introduction core passes through the upper port and is connected to the inner cylinder.

[0012] As a preferred technical solution of the present invention, the three shells are connected in series through a first wire to form a neutral point of the power supply, and the first wire is connected to the neutral wire of the low-voltage three-phase power line, and the three positive electrode introduction core rods are connected in series through a second wire and connected to the live wire of the low-voltage three-phase power line.

[0013] As a preferred technical solution of the present invention, the supply voltage of the low-voltage three-phase power line is 380V.

[0014] In a second aspect, the present invention provides a method for operating a low-voltage electrode boiler, comprising the following steps:

[0015] S1, a low-voltage three-phase power line is passed through the first conductor to make the outer shell form the negative pole of the power supply, and a second conductor and a positive pole are introduced into the core rod to make the inner tube form the positive pole of the power supply, and at the same time, the aqueous solution can have a water resistance with a certain conductivity;

[0016] S2, the circulating water pump is powered on to continuously deliver circulating water to the three inner cylinders through the circulating water inlet pipe. The current flows from the inner cylinder to the outer shell through the water resistor to heat the circulating water, and finally the circulating water flows out from the circulating water outlet pipe.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the low-voltage three-phase power line is passed through the first conductor to make the outer shell form the negative pole of the power supply, and the inner cylinder is formed into the positive pole of the power supply through the second conductor and the positive pole, and the water solution can have a water resistor with a certain conductivity; the circulating water pump is powered on and the circulating water is continuously transported to the three inner cylinders through the circulating water inlet pipe, and the current reaches the outer shell from the inner cylinder through the water resistor to heat the circulating water, and finally the circulating water flows out from the circulating water outlet pipe. The present invention forms a spacing between the positive and negative poles of the power supply to ensure safe operation, and at the same time, the water resistor with a certain conductivity formed after the water solution is powered on can convert electrical energy into thermal energy, ensuring high thermal efficiency, and finally achieving the purpose of high efficiency, energy saving and emission reduction.

[0018] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a low-pressure electrode boiler disclosed in the present invention;

[0020] Figure 2 It is a flow chart of the working method of the low-pressure electrode boiler disclosed in the present invention.

[0021] Explanation of the reference numerals: 1. support frame; 2. container; 21. outer shell; 22. inner cylinder; 23. insulating sleeve; 24. positive electrode introduction core rod; 3. circulating water inlet pipe; 4. circulating water pump; 5. circulating water outlet pipe. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0025] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0027] Embodiment 1

[0028] See attached Figure 1 As shown, the present invention provides a technical solution: a low-pressure electrode boiler, which includes a support frame 1, at least three containers 2, a circulating water inlet pipe 3, a circulating water pump 4 and a circulating water outlet pipe 5, the three containers 2 are arranged on the support frame 1 in sequence, the circulating water inlet pipe 3 connects the water inlet ends of the three containers 2 in sequence through the circulating water pump 4, and the circulating water outlet pipe 5 connects the water outlet ends of the three containers 2 in sequence.

[0029] Furthermore, the three containers 2 each include an outer shell 21 and an inner cylinder 22 disposed inside the outer shell 21 , and pure water and a conductive water solvent are respectively added between the outer shell 21 and the inner cylinder 22 to form an aqueous solution.

[0030] In this embodiment, the negative electrode and the positive electrode of the power supply are arranged on the outer shell 21 and the inner cylinder 22 respectively, so that the negative electrode of the power supply and the positive electrode of the power supply form a certain distance. This distance ensures that there is no breakdown between the negative electrode of the power supply and the positive electrode of the power supply, and ensures that the aqueous solution has a minimum conductivity to form a water resistor.

[0031] Of course, during the heating process, the aqueous solution acts as a heating element, so no scaling will occur in the boiler and no losses will occur due to electric heating, thereby improving the heating efficiency.

[0032] In addition, since pure water cannot conduct electricity, a conductive water solvent of a certain concentration and proportion needs to be added to the pure water to achieve a suitable conductivity.

[0033] Preferably, the conductive aqueous solvent is trisodium phosphate (Na3PO4) solvent.

[0034] Furthermore, the container 2 also includes an insulating sleeve 23 and a positive electrode introduction core rod 24, the insulating sleeve 23 is sleeved on the positive electrode introduction core rod 24, one end of the insulating sleeve 23 is inserted into the upper port of the outer shell 21, and the positive electrode introduction core passes through the upper port and is connected to the inner cylinder 22.

[0035] In this embodiment, by sleeve-arranging the insulating sleeve 23 on the surface of the positive electrode introduction core rod 24, an effective insulation effect can be achieved; at the same time, after the insulating sleeve 23 is inserted into the upper port of the shell 21, an effective sealing effect can be achieved.

[0036] In a preferred embodiment of the present invention, three shells 21 are connected in series through a first conductor to form a neutral point of a power supply, and the first conductor is connected to the neutral line of the low-voltage three-phase power line, and the three positive electrode introduction core rods 24 are connected in series through a second conductor and to the live line of the low-voltage three-phase power line.

[0037] In this embodiment, after the low-voltage three-phase power line is energized through the first conductor, the three outer shells 21 can form the negative pole of the power supply. At the same time, the core rod 24 is introduced through the second conductor and the positive pole to make the inner tube 22 form the positive pole of the power supply, thereby converting electrical energy into thermal energy.

[0038] In addition, the first conductive wire is also connected to a ground wire, so the housing 21 is not electrified, thereby preventing electric shock accidents.

[0039] It is worth noting that the supply voltage of the low-voltage three-phase power line is 380V.

[0040] Among them, the low-voltage three-phase power line is a three-phase four-wire system.

[0041] Embodiment 2

[0042] See attached Figure 2 As shown, the working method of the low-pressure electrode boiler provided in the embodiment of the present invention further comprises the following steps:

[0043] S1, a low-voltage three-phase power line is passed through the first conductor to make the outer shell 21 form the negative pole of the power supply, and the second conductor and the positive pole are introduced into the core rod 24 to make the inner cylinder 22 form the positive pole of the power supply, and at the same time, the aqueous solution can have a water resistance with a certain conductivity;

[0044] S2, the circulating water pump 4 is powered on to continuously deliver circulating water to the three inner tubes 22 through the circulating water inlet pipe 3. The current flows from the inner tube 22 to the outer shell 21 through the water resistor to heat the circulating water, and finally the circulating water flows out from the circulating water outlet pipe 5.

[0045] It should be noted that the model and specifications of the circulating water pump 4 need to be selected and determined according to the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in the field, so it will not be described in detail.

[0046] The power supply and principle of the circulating water pump 4 are clear to those skilled in the art and will not be described in detail here.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-pressure electrode boiler, characterized in that: The boiler comprises a support frame, at least three containers, a circulating water inlet pipe, a circulating water pump and a circulating water outlet pipe, the three containers are arranged on the support frame in sequence, the circulating water inlet pipe connects the water inlet ends of the three containers in sequence through the circulating water pump, and the circulating water outlet pipe connects the water outlet ends of the three containers in sequence, the three containers each comprise an outer shell and an inner cylinder arranged inside the outer shell, pure water and trisodium phosphate (Na3PO4) solvent are respectively added between the outer shell and the inner cylinder to form an aqueous solution, and a negative power supply electrode and a positive power supply electrode are respectively arranged on the outer shell and the inner cylinder, so that the negative power supply electrode and the positive power supply electrode form a certain distance; The container further comprises an insulating sleeve and a positive electrode introduction core rod, wherein the insulating sleeve is sleeved on the positive electrode introduction core rod, one end of the insulating sleeve is plugged into the upper port of the shell, and the positive electrode introduction core passes through the upper port and is connected to the inner cylinder; The three outer shells are connected in series through a first conductor to form a neutral point of a power supply, and the first conductor is connected to the neutral line of a low-voltage three-phase power supply line. After the low-voltage three-phase power supply line is energized through the first conductor, the three outer shells are formed into the negative pole of the power supply. The three positive electrode introduction core rods are connected in series through a second conductor and connected to the live wire of the low-voltage three-phase power supply line. The inner tube is formed into the positive pole of the power supply through the second conductor and the positive electrode introduction core rod. At the same time, the first conductor is also connected to a grounding wire.

2. The low-pressure electrode boiler according to claim 1, characterized in that: The supply voltage of the low-voltage three-phase power line is 380V.

3. A method for operating a low-pressure electrode boiler, applied to the low-pressure electrode boiler according to any one of claims 1 to 2, characterized in that: The following steps are involved: S1, a low-voltage three-phase power line is passed through the first conductor to make the outer shell form the negative pole of the power supply, and a second conductor and a positive pole are introduced into the core rod to make the inner tube form the positive pole of the power supply, and at the same time, the aqueous solution can have a water resistance with a certain conductivity; S2, the circulating water pump is powered on to continuously deliver circulating water to the three inner cylinders through the circulating water inlet pipe. The current flows from the inner cylinder to the outer shell through the water resistor to heat the circulating water, and finally the circulating water flows out from the circulating water outlet pipe.

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