Rare earth auxiliary heat energy-saving device and its application in dimethyl ether gas boiler burner

Abstract

The present invention discloses a rare earth auxiliary heat energy-saving device and its application in a dimethyl ether gas boiler burner, including an auxiliary heat cylinder, the auxiliary heat cylinder corresponds to the flamethrower of the dimethyl ether gas boiler burner, the outer wall and the inner wall of the auxiliary heat cylinder are both provided with a lanthanum oxide layer, a water storage chamber is provided between the inner wall and the outer wall of the auxiliary heat cylinder, the inner wall and the outer wall are both provided with a high temperature resistant atomizing nozzle connected to the water storage chamber, the water storage chamber is connected to an external water source through a high temperature resistant pipe, an electromagnetic valve is provided between the external water source and the high temperature resistant pipe, the electromagnetic valve is connected to a controller through a timer, and the controller is connected to a temperature sensor for monitoring the temperature of the auxiliary heat cylinder. The present invention can make full use of the exothermic effect of the conversion between lanthanum oxide and lanthanum hydroxide to perform auxiliary heat on the combustion of dimethyl ether gas, thereby compensating for the problem of low relative calorific value of dimethyl ether. During use, it is sufficient to provide water mist to the auxiliary heat cylinder, which is easy to control, low cost and clean energy.

Description

Technical Field

[0001] The invention relates to the technical field of dimethyl ether combustion, in particular to a rare earth auxiliary heat energy-saving device and the application thereof to a dimethyl ether gas boiler burner. Background Art

[0002] Dimethyl ether has the main properties of fuel, with a calorific value of about 64.686MJ / m³ and an oxygen content of 34.8%. It is an ideal clean fuel because it can be fully burned, has no carbon precipitation, and has no residual liquid. However, the relative calorific value of dimethyl ether is low. How to improve the combustion efficiency of dimethyl ether and how to achieve better environmental protection and energy saving effects are the research directions. When lanthanum oxide is in contact with water at a high temperature of 800 degrees Celsius, it will be converted into lanthanum hydroxide. In the process of converting lanthanum oxide into lanthanum hydroxide, a large amount of heat will be generated. This heat can be used to make up for the low calorific value of dimethyl ether. However, how to apply the conversion heat release between lanthanum oxide and lanthanum hydroxide in the dimethyl ether gas boiler burner is a technical problem that technicians need to overcome. Summary of the invention

[0003] In view of the deficiencies in the above-mentioned background technology, the present invention proposes a rare earth auxiliary heat energy-saving device and its application in a dimethyl ether gas boiler burner, which solves the technical problem of low thermal efficiency when dimethyl ether gas is burned as fuel.

[0004] The technical solution of the present invention is implemented as follows: a rare earth auxiliary heat energy-saving device and its application on a dimethyl ether gas boiler burner, including an auxiliary heat tube, the auxiliary heat tube corresponds to the flamethrower of the dimethyl ether gas boiler burner, a part of the flame sprayed from the flamethrower passes through the auxiliary heat tube, and a part covers the outside of the auxiliary heat tube, and the flame sprayed from the flamethrower can completely wrap the auxiliary heat tube, so as to facilitate the uniform heating of the auxiliary heat tube. The outer wall and the inner wall of the auxiliary heat tube are both provided with a lanthanum oxide layer, and the lanthanum oxide layer can be quickly heated to 800 degrees Celsius by the flame sprayed from the flamethrower. At this time, if there is water, the lanthanum oxide in the lanthanum oxide layer can be converted into lanthanum hydroxide, and a large amount of heat is released at the same time. A water storage cavity is provided between the inner wall and the outer wall of the auxiliary heat tube, and the inner wall and the outer wall are both provided with a high temperature resistant atomizing nozzle connected to the water storage cavity, and the high temperature resistant atomizing nozzle can provide water mist for the lanthanum oxide layer covered on the outer wall and the inner wall, so that the lanthanum oxide in the lanthanum oxide layer can be fully converted into lanthanum hydroxide, and then fully release heat. The water storage chamber is connected to the external water source through a high temperature resistant tube, and a solenoid valve is arranged between the external water source and the high temperature resistant tube, and the solenoid valve can control the high temperature resistant atomizing nozzle to spray water at intervals. The solenoid valve is connected to a controller through a timer, and the controller is connected to a temperature sensor that monitors the temperature of the auxiliary heating tube. The controller controls the working state of the solenoid valve according to the real-time temperature detected by the temperature sensor, and then controls the working state of the high temperature resistant atomizing nozzle in real time. Only when the temperature reaches 800 degrees Celsius and the timer reaches the solenoid valve opening time, the controller controls the solenoid valve to open, and the high temperature resistant atomizing nozzle sprays water. At this time, lanthanum oxide can be converted into lanthanum hydroxide and release heat; then, the controller controls the solenoid valve to close, and the high temperature resistant atomizing nozzle stops spraying water, and lanthanum hydroxide will automatically convert into lanthanum oxide at high temperature, waiting for the next working cycle to release heat.

[0005] Furthermore, the high temperature resistant atomizing nozzles are arranged at intervals along the circumference of the auxiliary heating cylinder, which can make the water mist spray more uniform and make the amount of lanthanum oxide converted into lanthanum hydroxide more sufficient.

[0006] Furthermore, a bracket is provided in the auxiliary heating cylinder, and a rotating impeller is connected to the bracket, and the blades of the rotating impeller are inclined relative to the central axis of the auxiliary heating cylinder. The rotating impeller can not only block the flame to quickly heat up the auxiliary heating cylinder, but also drive the flame and water mist to form a vortex, so that the conversion of lanthanum oxide into lanthanum hydroxide is more sufficient and reliable.

[0007] Furthermore, the bracket includes a radial rod radially arranged in the auxiliary heating tube, a rotating hole is opened at a position of the radial rod corresponding to the central axis of the auxiliary heating tube, a center rod is arranged in the rotating hole, and the rotating impeller is rotatably arranged on the center rod.

[0008] Furthermore, the inclination angle between the blades and the central axis of the auxiliary heating cylinder is 45°, which ensures that the rotating impeller will not generate excessive resistance to the flame and can rotate with it.

[0009] Furthermore, five brackets are arranged at equal intervals, a central rod is passed through each bracket, and a rotating impeller is arranged between two adjacent brackets.

[0010] Furthermore, the blades of two adjacent rotating impellers rotate in opposite directions, which can make the reaction between the water mist and lanthanum oxide more complete.

[0011] Furthermore, a ring of high temperature resistant atomizing nozzles is provided in front of each rotating impeller to provide sufficient water required for converting lanthanum oxide into lanthanum hydroxide without causing a sudden drop in temperature.

[0012] A rare earth auxiliary heat energy-saving device is used in a dimethyl ether gas boiler burner. The temperature sensor monitors the temperature of the auxiliary heat cylinder. When the temperature reaches 800 degrees Celsius and the timer reaches the solenoid valve opening time, the controller controls the solenoid valve to open, and then water enters the water storage chamber with the external water source. The water pressure in the water storage chamber increases, and the high-temperature resistant atomizing nozzle sprays water mist. The water mist reacts with lanthanum oxide in the lanthanum oxide layer at high temperature and is converted into lanthanum hydroxide, while releasing a large amount of heat. After the solenoid valve is opened for 5-10 seconds, the controller controls the solenoid valve to close according to the instruction of the timer, and the lanthanum hydroxide is converted into lanthanum oxide in a high-temperature state of water shortage.

[0013] Furthermore, the lanthanum oxide layer includes palladium metal powder and lanthanum oxide powder. The palladium metal powder and lanthanum oxide are pressed into the lanthanum oxide layer through high-temperature resistant glue. The water mist sprayed from the high-temperature resistant atomizing nozzle will be decomposed into hydrogen and oxygen by the palladium metal powder at a temperature above 800 degrees Celsius. The palladium metal powder decomposes the water mist into hydrogen and oxygen, thereby enhancing the calorific value of the combustion of dimethyl ether gas.

[0014] The present invention can make full use of the exothermic effect of the conversion between lanthanum oxide and lanthanum hydroxide to assist the combustion of dimethyl ether gas, thereby compensating for the problem of low relative calorific value of dimethyl ether. During use, it is sufficient to provide water mist to the auxiliary heating cylinder, which is easy to control, low cost and clean energy. In addition, lanthanum oxide and lanthanum hydroxide can be converted into each other, and it can be conveniently recycled as long as the reaction temperature is controlled and water is added in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments 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 any creative work.

[0016] Figure 1 It is a cross-sectional structural schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 Sectional view of the AA plane;

[0018] Figure 3 for Figure 1 Sectional view of the BB plane. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0020] Embodiment 1, a rare earth auxiliary heat energy-saving device, such as Figure 1 As shown, it includes an auxiliary heating tube 1, which corresponds to the flamethrower of the dimethyl ether gas boiler burner. A part of the flame sprayed from the flamethrower passes through the auxiliary heating tube 1, and a part of it covers the outside of the auxiliary heating tube 1. The flame sprayed from the flamethrower can completely wrap the auxiliary heating tube 1, so as to facilitate uniform heating of the auxiliary heating tube 1.

[0021] The outer wall and the inner wall of the auxiliary heating tube 1 are both provided with a lanthanum oxide layer 2, which can be quickly heated to 800 degrees Celsius by the flame sprayed from the flamethrower. At this time, if there is moisture, the lanthanum oxide in the lanthanum oxide layer 2 can be converted into lanthanum hydroxide, while releasing a large amount of heat.

[0022] A water storage chamber 11 is arranged between the inner wall and the outer wall of the auxiliary heating cylinder 1, and both the inner wall and the outer wall are provided with a high temperature resistant atomizing nozzle 4 connected with the water storage chamber 11. The high temperature resistant atomizing nozzle 4 can provide water mist for the lanthanum oxide layer 2 covered on the outer wall and the inner wall, so that the lanthanum oxide in the lanthanum oxide layer 2 can be fully converted into lanthanum hydroxide, and then fully release heat.

[0023] The water storage chamber 11 is connected to the external water source through the high temperature resistant tube 3, and a solenoid valve is arranged between the external water source and the high temperature resistant tube 3, and the solenoid valve can control the interval water spraying of the high temperature resistant atomizing nozzle 4. The solenoid valve is connected to the controller through the timer, and the controller is connected to the temperature sensor that monitors the temperature of the auxiliary heating tube 1. The controller controls the working state of the solenoid valve according to the real-time temperature detected by the temperature sensor, and then controls the working state of the high temperature resistant atomizing nozzle 4 in real time. The solenoid valve and the controller are both located outside the high temperature, so they can be connected by ordinary wires; the temperature sensor and the controller can communicate through wireless transmission, or they can be connected by wires arranged in the high temperature resistant tube.

[0024] Only when the temperature of the auxiliary heating tube 1 reaches 800 degrees Celsius and the timer reaches the solenoid valve opening time, the controller will control the solenoid valve to open, and the high-temperature resistant atomizing nozzle 4 will spray water. At this time, lanthanum oxide can be converted into lanthanum hydroxide and release heat; then, under the action of the timer, the controller will control the solenoid valve to close, and the high-temperature resistant atomizing nozzle 4 will stop spraying water. At a high temperature of 800 degrees, lanthanum hydroxide will automatically be converted into lanthanum oxide, waiting for the next working cycle to release heat.

[0025] Embodiment 2, a rare earth auxiliary heating energy-saving device, the high temperature resistant atomizing nozzle 4 is arranged at intervals along the circumference of the auxiliary heating tube 1, which can make the water mist spray more uniform and make the amount of lanthanum oxide converted into lanthanum hydroxide more sufficient, so as to release more heat.

[0026] The other structures of this embodiment are the same as those of Embodiment 1.

[0027] Embodiment 3, a rare earth auxiliary heat energy-saving device, such as Figure 1-Figure 3 As shown, a bracket 5 is provided in the auxiliary heating tube 1, and a rotating impeller 6 is connected to the bracket 5, and the blades 61 of the rotating impeller 6 are arranged obliquely relative to the central axis of the auxiliary heating tube 1. The rotating impeller 6 can not only block the flame to quickly heat up the auxiliary heating tube 1, but also drive the flame and the water mist to form a vortex. When the auxiliary heating tube 1 rotates, the sprayed water mist will contact with the lanthanum oxide over a large area, so that the conversion of lanthanum oxide into lanthanum hydroxide is more sufficient and reliable.

[0028] The bracket 5 includes a radial rod 51 radially arranged in the auxiliary heating tube 1. A rotating hole is opened at a position of the radial rod 51 corresponding to the central axis of the auxiliary heating tube 1. A center rod 52 is arranged in the rotating hole. The rotating impeller 6 is rotatably arranged on the center rod 52.

[0029] The inclination angle between the blade 61 and the central axis of the auxiliary heating cylinder 1 is 45°, which ensures that the rotating impeller 6 will not generate excessive resistance to the flame and can rotate with it.

[0030] The other structures of this embodiment are the same as those of Embodiment 1 or 2.

[0031] Embodiment 4, a rare earth auxiliary heat energy-saving device, wherein five brackets 5 are arranged at equal intervals, a central rod 52 is passed through each bracket 5, and a rotating impeller 6 is arranged between two adjacent brackets 5. The blades 61 of the two adjacent rotating impellers 6 rotate in opposite directions, which can make the reaction between the water mist and lanthanum oxide more complete.

[0032] Furthermore, a ring of high temperature resistant atomizing nozzles 4 is provided in front of each rotating impeller 6 to provide sufficient water required for converting lanthanum oxide into lanthanum hydroxide without causing a sudden drop in temperature.

[0033] The other structures of this embodiment may be the same as those of Embodiment 3.

[0034] Example 5, application of rare earth auxiliary heat energy-saving device on dimethyl ether gas boiler burner, the temperature sensor monitors the temperature of auxiliary heat cylinder 1, when the temperature reaches 800 degrees Celsius, the controller controls the solenoid valve to open, and then the water enters the water storage chamber 11 with the external water source, the water pressure in the water storage chamber 11 increases, the high temperature resistant atomizing nozzle 4 sprays water mist, the water mist reacts with the lanthanum oxide in the lanthanum oxide layer 2 at high temperature and converts into lanthanum hydroxide, while releasing a large amount of heat; after the solenoid valve is opened for 5-10 seconds, the controller controls the solenoid valve to close according to the instruction of the timer, and the lanthanum hydroxide is converted into lanthanum oxide in the high temperature state of water shortage. In this way, the dimethyl ether gas boiler burner can be continuously auxiliary heated.

[0035] Furthermore, the lanthanum oxide layer 2 includes palladium metal powder and lanthanum oxide powder, which are pressed into the lanthanum oxide layer 2 by high temperature resistant glue, and the water mist sprayed by the high temperature resistant atomizing nozzle 4 is decomposed into hydrogen and oxygen by the palladium metal powder at a temperature above 800 degrees Celsius, and the water decomposed into hydrogen and oxygen only accounts for about 15% of the total amount of water mist in the water spray auxiliary heating cylinder 1, which will not affect the exothermic process of lanthanum oxide being converted into lanthanum hydroxide. After the palladium metal powder decomposes the water mist into oxygen, the combustion efficiency of dimethyl ether gas can be effectively enhanced, and after the palladium metal powder decomposes the water mist into hydrogen, it can be used for combustion to enhance the combustion calorific value of dimethyl ether gas.

[0036] The details not described in detail in the present invention are all conventional technical means known to those skilled in the art.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A rare earth auxiliary heat energy-saving device, characterized in that: The auxiliary heating tube (1) corresponds to the flame-spraying tube of the dimethyl ether gas boiler burner, a part of the flame sprayed from the flame-spraying tube passes through the auxiliary heating tube, and a part of the flame sprayed from the flame-spraying tube covers the outside of the auxiliary heating tube, and the flame sprayed from the flame-spraying tube can completely wrap the auxiliary heating tube, so as to evenly heat the auxiliary heating tube; The outer wall and the inner wall of the auxiliary heating cylinder (1) are both provided with a lanthanum oxide layer (2), the lanthanum oxide layer comprising palladium metal powder and lanthanum oxide powder, the palladium metal powder and lanthanum oxide being pressed into the lanthanum oxide layer by means of high temperature resistant glue; a water storage chamber (11) is provided between the inner wall and the outer wall of the auxiliary heating cylinder (1), the inner wall and the outer wall are both provided with high temperature resistant atomizing nozzles (4) connected to the water storage chamber (11), the high temperature resistant atomizing nozzles (4) are arranged at intervals in a ring shape along the circumference of the auxiliary heating cylinder (1), the water storage chamber (11) is connected to an external water source via a high temperature resistant pipe (3), an electromagnetic valve is provided between the external water source and the high temperature resistant pipe (3), the electromagnetic valve is connected to a controller via a timer, and the controller is connected to a temperature sensor for monitoring the temperature of the auxiliary heating cylinder (1).

2. The rare earth auxiliary heat energy-saving device according to claim 1, characterized in that: A bracket (5) is arranged inside the auxiliary heating cylinder (1), a rotating impeller (6) is connected to the bracket (5), and blades (61) of the rotating impeller (6) are arranged to be inclined relative to the central axis of the auxiliary heating cylinder (1).

3. The rare earth auxiliary heat energy-saving device according to claim 2 is characterized in that: The bracket (5) comprises a radial rod (51) radially arranged in the auxiliary heating cylinder (1); a rotation hole is provided in the radial rod (51) at a position corresponding to the central axis of the auxiliary heating cylinder (1); a center rod (52) is arranged in the rotation hole; and the rotating impeller (6) is rotatably arranged on the center rod (52).

4. The rare earth auxiliary heat energy-saving device according to claim 3 is characterized in that: The inclination angle between the blade (61) and the central axis of the auxiliary heating cylinder (1) is 45°.

5. The rare earth auxiliary heat energy-saving device according to claim 4, characterized in that: Five brackets (5) are arranged at equal intervals, a central rod (52) is passed through each bracket (5), and a rotating impeller (6) is arranged between two adjacent brackets (5).

6. The rare earth auxiliary heat energy-saving device according to claim 5, characterized in that: The blades (61) of two adjacent rotating impellers (6) rotate in opposite directions.

7. The rare earth auxiliary heat energy-saving device according to claim 5 or 6, characterized in that: A ring of high temperature resistant atomizing nozzles (4) is arranged in front of each rotating impeller (6).

8. Application of the rare earth auxiliary heat energy-saving device according to claim 7 to a dimethyl ether gas boiler burner, characterized in that: The temperature sensor monitors the temperature of the auxiliary heating cylinder (1); when the temperature reaches 800 degrees Celsius and the timer reaches the solenoid valve opening time, the controller controls the solenoid valve to open, and then water enters the water storage chamber (11) with the external water source, the water pressure in the water storage chamber (11) increases, and the high temperature resistant atomizing nozzle (4) sprays water mist, and the water mist reacts with the lanthanum oxide in the lanthanum oxide layer (2) at high temperature and is converted into lanthanum hydroxide, while releasing a large amount of heat; after the solenoid valve is opened for 5-10 seconds, the controller controls the solenoid valve to close according to the instruction of the timer, and the lanthanum hydroxide is converted into lanthanum oxide in the high temperature state of lack of water.

9. Application of the rare earth auxiliary heat energy-saving device according to claim 8 to a dimethyl ether gas boiler burner, characterized in that: The lanthanum oxide layer (2) comprises palladium metal powder and lanthanum oxide powder. The palladium metal powder and lanthanum oxide are pressed into the lanthanum oxide layer (2) by means of a high temperature resistant adhesive. The water mist sprayed by the high temperature resistant atomizing nozzle (4) is decomposed into hydrogen and oxygen by the palladium metal powder at a temperature above 800 degrees Celsius. The palladium metal powder decomposes the water mist into hydrogen and oxygen, thereby enhancing the combustion of dimethyl ether fuel gas.

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