Water resistance industrial boiler

Abstract

The water-resistance industrial boiler includes a boiler body and a water-resistance heat energy generator. The bottom of the boiler shell is provided with a working fluid inlet, the top of the boiler shell is provided with a working fluid outlet, and the boiler shell is provided with a water-resistance heat energy generator. The working fluid is heated by the water-resistance heat energy generator, and the water-resistance heat energy generator directly conducts convection heat exchange with the working fluid medium, with high heat exchange coefficient and high thermal efficiency. At the same time, the water-resistance heat energy generator is arranged inside the boiler shell, and no pollutants and noise are generated during operation.

Description

Technical Field

[0001] The invention belongs to the technical field of boiler equipment, and in particular relates to a water resistance industrial boiler. Background Art

[0002] Industrial boilers play an important role in my country's production and life, and are an important thermal power equipment. At present, in my country's industrial production, light textile industry, energy industry, building materials, construction industry, chemical industry, metallurgical industry, transportation industry and military industry are sectors that use a lot of heat, and will continue to be the main market for industrial boilers.

[0003] The existing traditional boilers mainly have the following problems:

[0004] First of all, coal-fired and oil-fired boilers can easily cause serious pollution to the environment. With the continuous changes in the energy supply structure and the increasingly stringent national energy-saving and environmental protection requirements, their scope of application will be subject to stricter restrictions.

[0005] Second, the use of gas boilers is limited due to factors such as the shortage of natural gas in China and the high cost of opening.

[0006] Third, resistance (electric heating tube) and electromagnetic induction boilers have varying degrees of problems in operating stability and safety because their electrical components are affected by high temperatures. This is especially true for resistance (electric heating tube) type boilers, which have resistance heating components that are easily oxidized at high temperatures, have a short service life, and are at great risk of explosion and leakage.

[0007] Fourth, electrode boilers are difficult to be widely used due to factors such as high production cost, complex operation, poor operating stability, and high safety control requirements. The main problems are as follows: (1) Jet-type electrode electric boilers are prone to produce hydrogen, which is dangerous and may explode; (2) The use of low-voltage technology has high electricity costs, the boiler body is fragile, the product is not mature enough, and is only suitable for small-area heating, with a narrow application range; (3) The structure of immersed high-voltage electrode boilers is complex, and the boiler needs to be continuously supplied with pure water and dosing during operation, which is complex to operate and has poor operating stability; (4) Existing jet-type electrode boilers and immersed high-voltage electrode boilers have complex design structures and cumbersome operations; (5) The production cost is high, the market applicability is narrow, and it is difficult to be widely used. Summary of the invention

[0008] The purpose of the present invention is to solve the problems existing in the above-mentioned prior art and to provide a water-resistance industrial boiler, which utilizes a water-resistance heating element to generate heat energy and converts its heat energy into a variety of heat energy carriers such as high-temperature steam, high-temperature hot water and high-temperature heat transfer oil to meet the heat energy needs of various industries. At the same time, it has the characteristics of safety, environmental protection, stable operation, and low production and use costs.

[0009] The present invention is achieved through the following technical solutions:

[0010] The water-resistance industrial boiler includes a boiler body and a water-resistance heat energy generator. The boiler body is composed of a boiler shell, a working fluid input pipe and a working fluid output pipe. The bottom of the boiler shell is provided with a working fluid input port, the top of the boiler shell is provided with a working fluid output port, and the boiler shell is provided with a water-resistance heat energy generator. The working fluid is heated by the water-resistance heat energy generator, and the water-resistance heat energy generator directly conducts convection heat exchange with the working fluid medium, with high heat exchange coefficient and high thermal efficiency. At the same time, the water-resistance heat energy generator is arranged inside the boiler shell, and no pollutants and noise are generated during operation.

[0011] The water resistance heat energy generator comprises a generator shell, a cover plate, an electrode, a resistance liquid storage and an external circulation device. The top of the generator shell is provided with a cover plate, the cover plate is provided with an electrode extending into the generator shell, the bottom of the generator shell is provided with a resistance liquid storage, the resistance liquid storage is connected with the generator shell through a first connecting pipe, the bottom of the generator shell is provided with a resistance liquid inlet pipe, the bottom of the resistance liquid storage is provided with a resistance liquid outlet pipe, the resistance liquid inlet pipe and the resistance liquid outlet pipe extend to the side wall of the boiler shell and are connected with the external circulation device. The resistance liquid is heated by the electrode, the heating is rapid and the thermal efficiency is high.

[0012] The external circulation device includes a resistor liquid level regulating circulation device and a resistor liquid replenishing circulation device. The resistor liquid level regulating circulation device and the resistor liquid replenishing circulation device are provided at the same time, so that the level of the resistor liquid can be regulated, thereby adjusting the heating power, and the resistor liquid can be replenished in time to ensure the safe operation of the boiler.

[0013] The resistor liquid replenishing circulation device comprises a fourth valve, a resistor liquid circulation pump, a fifth valve and a second connecting pipe, wherein the fourth valve, the resistor liquid circulation pump, the fifth valve and the second connecting pipe are connected in sequence, the fourth valve is connected to the resistor liquid outlet pipe, and the second connecting pipe is connected to the resistor liquid inlet pipe. The resistor liquid level valve is used to adjust the resistor liquid level in the generator housing to adjust the contact depth between the resistor liquid and the electrode, thereby adjusting the heating efficiency of the boiler.

[0014] The resistor liquid level regulating circulation device comprises a resistor liquid level valve, one end of which is connected to the resistor liquid outlet pipe, and the other end of which is connected to the resistor liquid inlet pipe. The resistor liquid circulation pump is used to replenish the resistor liquid in the generator housing, which can achieve rapid replenishment, avoid dry burning of the electrode, and ensure safe operation of the boiler.

[0015] At least three electrodes are provided, and the electrodes are evenly distributed on the cover plate around the center of the cover plate. The electrodes are evenly distributed so that the resistance liquid is heated evenly and the thermal efficiency of the water resistance heat energy generator is improved.

[0016] The outer side of the generator housing is provided with fins. Providing the fins on the outer side of the generator housing can increase the contact area between the water resistance heat energy generator and the working fluid, which is beneficial to the heat exchange between the water resistance heat energy generator and the working fluid and improves the heating efficiency of the boiler.

[0017] The side wall of the boiler housing is provided with a liquid level gauge, which can display the amount of working fluid in the boiler and avoid wasting heat energy due to too little working fluid.

[0018] The working fluid outlet is provided with a first valve.

[0019] The working fluid input port is provided with a second valve, a working fluid circulation pump and a third valve in sequence, a sewage pipe is provided between the working fluid input port and the second valve, and a sewage valve is provided on the sewage pipe.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The water-resistance industrial boiler of the present invention uses a water-resistance heat generator to heat the working fluid. The water-resistance heat generator directly conducts convection heat exchange with the working fluid medium, with high heat exchange coefficient and high thermal efficiency. At the same time, the water-resistance heat generator is arranged inside the boiler shell, and no pollutants and noise are generated during operation;

[0022] 2. The water resistance industrial boiler of the present invention uses electrodes to heat the resistance liquid, which heats quickly and has high thermal efficiency;

[0023] 3. The water-resistance industrial boiler of the present invention is provided with a resistance liquid level regulating circulation device and a resistance liquid replenishing circulation device, which can realize the resistance liquid level regulation, thereby realizing the regulation of the heating power, and can replenish the resistance liquid in time to ensure the safe operation of the boiler;

[0024] 4. The water-resistance industrial boiler of the present invention uses a resistance liquid level valve to adjust the resistance liquid level in the generator housing to adjust the contact depth between the resistance liquid and the electrode, thereby adjusting the heating efficiency of the boiler;

[0025] 5. The water-resistance industrial boiler of the present invention adopts a resistance liquid circulation pump to replenish the resistance liquid in the generator housing, which can achieve rapid replenishment, avoid dry burning of electrodes, and ensure safe operation of the boiler;

[0026] 6. The water-resistance industrial boiler of the present invention is provided with fins on the outer side of the generator shell, which can increase the contact area between the water-resistance heat energy generator and the working fluid, is beneficial to the heat exchange between the water-resistance heat energy generator and the working fluid, and improves the heating efficiency of the boiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the boiler shell structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of the water resistance heat energy generator of the present invention;

[0031] Among them, 1. boiler body, 2. water resistance heat energy generator, 11. support column, 12. boiler shell, 13. working liquid output port, 14. first valve, 15. liquid level meter, 16. working liquid input port, 17. second valve, 18. working liquid circulation pump, 19. third valve, 20. drain pipe, 21. drain valve, 31. cover plate, 32. electrode, 33. generator shell, 34. first connecting pipe, 35. resistance liquid storage, 36. resistance liquid inlet pipe, 37. fourth valve, 38. resistance liquid circulation pump, 39. fifth valve, 40. second connecting pipe, 41. resistance liquid level valve, 42. resistance liquid outlet pipe, 43. fin. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0033] like Figure 1-2As shown, the water resistance industrial boiler includes a boiler body 1 and a water resistance heat energy generator 2. The boiler body 1 is composed of a boiler shell 12, a working liquid input pipe and a working liquid output pipe. The boiler shell 12 is fixed on a support column 11. The bottom of the boiler shell 12 is provided with a working liquid input port 16, and the top of the boiler shell 12 is provided with a working liquid output port. The working liquid input port 16 is connected to the working liquid input pipe, and the working liquid output port 13 is connected to the working liquid output pipe. The boiler shell 12 is provided with a water resistance heat energy generator 2. The working liquid is heated by the water resistance heat energy generator 2. The water resistance heat energy generator 2 directly conducts convection heat exchange with the working liquid medium, and has a high heat exchange coefficient and high thermal efficiency. At the same time, the water resistance heat energy generator 2 is arranged inside the boiler shell 12, and no pollutants and noise are generated during operation.

[0034] like Figure 3 As shown, the water resistance heat energy generator 2 includes a generator shell 33, a cover plate 31, an electrode 32, a resistance liquid storage tank 35 and an external circulation device. The top of the generator shell 33 is provided with a cover plate 31, and the cover plate 31 is fixed on the boiler shell 12. Specifically, the top of the boiler shell 12 is provided with a circular hole, and a circular tube facing the inside of the boiler shell 12 is provided in the circular hole. The top of the circular tube is fixed on the boiler shell 12, and the bottom of the circular tube is fixed with a cover plate 31. The cover plate 31 is provided with an electrode 32 extending toward the inside of the generator shell 33. A resistor liquid storage 35 is provided below the body 33, and the resistor liquid storage 35 is connected to the generator housing 33 through a first connecting pipe 34. Specifically, one end of the first connecting pipe 34 is connected to the upper end of the generator housing 33, and the other end of the first connecting pipe 34 is connected to the upper end of the resistor liquid storage 35. A resistor liquid inlet pipe 36 is provided at the bottom of the generator housing 33, and a resistor liquid outlet pipe 42 is provided at the bottom of the resistor liquid storage 35. The resistor liquid inlet pipe 36 and the resistor liquid outlet pipe 42 extend to the side wall of the boiler housing 12 and are connected to the external circulation device. The electrode 32 is used to heat the resistor liquid, and the heating is rapid and the thermal efficiency is high.

[0035] The external circulation device includes a resistor liquid level regulating circulation device and a resistor liquid replenishing circulation device. The resistor liquid level regulating circulation device and the resistor liquid replenishing circulation device are provided at the same time, so that the level of the resistor liquid can be regulated, thereby adjusting the heating power, and the resistor liquid can be replenished in time to ensure the safe operation of the boiler.

[0036] The resistor liquid replenishing circulation device comprises a fourth valve 37, a resistor liquid circulation pump 38, a fifth valve 39 and a second connecting pipe 40. The fourth valve 37, the resistor liquid circulation pump 38, the fifth valve 39 and the second connecting pipe are connected in sequence. The fourth valve 37 is connected to the resistor liquid outlet pipe 42, and the second connecting pipe is connected to the resistor liquid inlet pipe 36. The resistor liquid level valve 41 is used to adjust the resistor liquid level in the generator housing 33 to adjust the contact depth between the resistor liquid and the electrode 32, thereby adjusting the heating efficiency of the boiler.

[0037] The resistor liquid level regulating circulation device comprises a resistor liquid level valve 41, one end of which is connected to a resistor liquid outlet pipe 42, and the other end of which is connected to a resistor liquid inlet pipe 36. The resistor liquid circulation pump 38 is used to replenish the resistor liquid in the generator housing 33, so that rapid replenishment can be achieved, thereby avoiding dry burning of the electrode 32 and ensuring safe operation of the boiler.

[0038] When the boiler is working normally, the generator housing 33 is filled with resistance liquid. When the contact depth between the resistance liquid and the electrode 32 is the largest, the power of the boiler is the largest and the heating speed is the fastest. At this time, the resistance liquid level valve 41 is opened, and the resistance liquid in the generator housing 33 passes through the resistance liquid outlet pipe 42, the resistance liquid level valve 41 and the resistance liquid inlet pipe 36 in sequence under the action of gravity, and enters the resistance liquid storage 35. At this time, the resistance liquid in the generator housing 33 is reduced, the contact depth between the resistance liquid and the electrode 32 is reduced, the power of the boiler becomes smaller, and the heating speed is reduced. When it is necessary to increase the heating speed, the resistance liquid circulation pump 38 is turned on, so that the resistance liquid in the resistance liquid storage 35 passes through the resistance liquid inlet pipe 36, the fourth valve 37, the resistance liquid circulation pump 38, the fifth valve 39, the second connecting pipe 40 and the resistance liquid outlet pipe 42 in sequence, and enters the generator housing 33, so that the contact depth between the resistance liquid and the electrode 32 is increased, and the heating speed of the boiler is accelerated.

[0039] At the same time, during this process, most of the resistance liquid is located inside the boiler, always maintaining the same temperature as the working liquid, avoiding the trouble of heating the resistance liquid first and then letting the resistance liquid heat the working liquid, making the boiler's response speed faster and the temperature regulation more sensitive.

[0040] At least three electrodes 32 are provided, and the electrodes 32 are evenly distributed on the cover plate 31 with the center of the cover plate 31 as the center. The electrodes 32 are evenly distributed so that the resistance liquid is heated evenly, thereby improving the thermal efficiency of the water resistance heat energy generator 2.

[0041] The outer side of the generator housing 33 is provided with fins 43. The fins 43 are provided on the outer side of the generator housing 33 to increase the contact area between the water resistance heat energy generator 2 and the working fluid, which is beneficial to the heat exchange between the water resistance heat energy generator 2 and the working fluid and improves the heating efficiency of the boiler.

[0042] A liquid level gauge 15 is provided on the side wall of the boiler housing 12. The liquid level gauge 15 is provided on the side wall of the boiler housing 12 to display the amount of working fluid in the boiler and avoid wasting heat energy due to too little working fluid.

[0043] The working fluid outlet is provided with a first valve 14. One end of the first valve 14 is communicated with the working fluid outlet, and the other end of the first valve 14 is communicated with the working fluid outlet pipe.

[0044] The working fluid inlet 16 is provided with a second valve 17, a working fluid circulation pump 18 and a third valve 19 in sequence, and a drain pipe 20 is provided between the working fluid inlet 16 and the second valve 17, and a drain valve 21 is provided on the drain pipe 20. When the drain valve 21 is closed, the working fluid in the working fluid inlet pipe passes through the third valve 19, the working fluid circulation pump 18 and the third valve 19 in sequence, enters the boiler shell 12 through the working fluid outlet, and is discharged from the working fluid outlet after being heated by the water resistance heat energy generator 2; when the boiler runs for a long time and needs to be discharged, the second valve 17 is closed and the drain valve 21 is opened, so that the impurities precipitated inside the boiler can be discharged, thereby improving the heating efficiency.

[0045] The above technical solution is only one implementation mode of the present invention. For those skilled in the art, it is easy to make various types of improvements or modifications based on the application methods and principles disclosed in the present invention, and it is not limited to the method described in the above specific implementation mode of the present invention. Therefore, the method described above is only preferred and does not have a restrictive meaning.

Claims

1. A water resistance industrial boiler, characterized in that: It includes a boiler body and a water resistance heat energy generator, wherein the boiler body is composed of a boiler shell, a working fluid input pipe and a working fluid output pipe, a working fluid input port is provided at the bottom of the boiler shell, a working fluid output port is provided at the top of the boiler shell, and a water resistance heat energy generator is provided in the boiler shell; The water resistance heat energy generator comprises a generator shell, a cover plate, an electrode, a resistance liquid storage tank and an external circulation device. The top of the generator shell is provided with a cover plate, the cover plate is provided with an electrode extending into the generator shell, the bottom of the generator shell is provided with a resistance liquid storage tank, the resistance liquid storage tank is connected with the generator shell through a first connecting pipe, the bottom of the generator shell is provided with a resistance liquid inlet pipe, the bottom of the resistance liquid storage tank is provided with a resistance liquid outlet pipe, the resistance liquid inlet pipe and the resistance liquid outlet pipe extend to the side wall of the boiler shell and are connected with the external circulation device; The external circulation device includes a resistor liquid level regulating circulation device and a resistor liquid replenishing circulation device; The resistor liquid replenishing circulation device comprises a fourth valve, a resistor liquid circulation pump, a fifth valve and a second connecting pipe, wherein the fourth valve, the resistor liquid circulation pump, the fifth valve and the second connecting pipe are connected in sequence, the fourth valve is connected to the resistor liquid outlet pipe, and the second connecting pipe is connected to the resistor liquid inlet pipe; The resistor liquid level regulating circulation device comprises a resistor liquid level valve, one end of which is connected to the resistor liquid outlet pipe, and the other end of which is connected to the resistor liquid inlet pipe; The outer side of the generator housing is provided with fins.

2. A water resistance industrial boiler according to claim 1, characterized in that: At least three electrodes are provided, and the electrodes are evenly distributed on the cover plate around the center of the cover plate.

3. A water resistance industrial boiler according to claim 1, characterized in that: A liquid level gauge is provided on the side wall of the boiler housing.

4. A water resistance industrial boiler according to claim 1, characterized in that: The working fluid outlet is provided with a first valve.

5. A water resistance industrial boiler according to claim 1, characterized in that: The working fluid input port is provided with a second valve, a working fluid circulation pump and a third valve in sequence, a sewage pipe is provided between the working fluid input port and the second valve, and a sewage valve is provided on the sewage pipe.

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