A smart monitoring boiler based on the Internet of Things

Abstract

The present invention discloses an intelligent monitoring boiler based on the Internet of Things, comprising a boiler shell, a burner being provided on the left side of the boiler shell, and a pattern wall being provided in the boiler shell to divide the boiler shell into two areas, including a combustion chamber connected to the burner at the bottom, and an installation area for installing a convection tube bundle at the top; a corresponding smoke inlet is provided on the right side of the pattern wall and the convection tube bundle, and a smoke outlet is provided on the left side of the convection tube bundle, and a flue is provided at the smoke outlet, and a flue is also provided on the flue. A flue heat exchange device is also provided on the flue. In the analysis and optimization of boiler operation, the present invention adopts parameters such as the boiler's fuel quantity, air supply quantity, oxygen supply quantity, low-level heating value, and the difference between the air inlet and exhaust gas temperature as parameter data, and then performs feedback adjustment on the oxygen supply fan and the burner through the provided Internet of Things monitoring platform and feedback adjustment module, thereby accurately adjusting the boiler's working efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of boilers, and in particular to an intelligent monitoring boiler based on the Internet of Things. Background Art

[0002] In the existing technology, traditional boiler technology can no longer meet the requirements of the existing technology. Traditional boilers only have the function of boiling water and heating, while the existing boiler technology needs to be able to realize the Internet of Things monitoring function; for example: the technical solution of Publication (Announcement) No.: CN105782941 A discloses "A boiler monitoring system based on the Internet of Things".

[0003] The above technical solution mainly installs a water pressure sensor, an air pressure sensor and a temperature sensor inside the boiler, and realizes Internet of Things monitoring and control of temperature changes in the boiler through the sensor data of each sensor. However, this boiler technology cannot control the temperature changes in the furnace, and the temperature detection of the temperature sensor is only set at one place, and the temperature sensing is not accurate enough.

[0004] In addition, in the prior art, a heat exchange device is required to be installed on the flue gas channel of the boiler to recover the heat in the flue gas. The structural design of the heat exchange equipment in the prior art is very simple, and the flue gas is only passed through the heat exchange fins for heat exchange. The heat exchange efficiency is low and heat energy is wasted.

[0005] Therefore, in order to solve the above problems, it is necessary to develop an IoT-based smart monitoring boiler that can realize IoT monitoring and improve heat exchange efficiency. Summary of the Invention

[0006] The purpose of this invention is to address the deficiencies in the existing technology and provide a smart boiler monitoring system based on the Internet of Things. The technical solution is as follows:

[0007] A smart monitoring boiler based on the Internet of Things includes a boiler shell, a burner disposed on the left side of the boiler shell, and a pattern wall disposed within the boiler shell, dividing the boiler shell into two areas: a combustion chamber below that communicates with the burner, and an installation area above for mounting a convection tube bundle. A corresponding smoke inlet is disposed on the right side of the pattern wall and the convection tube bundle, while a corresponding smoke outlet is disposed on the left side of the convection tube bundle. A flue is mounted corresponding to the smoke outlet, and a flue is also mounted on the flue.

[0008] An oxygen supply fan is also provided above the burner. An oxygen supply pipe is installed on the oxygen supply fan and extends into the combustion chamber. An oxygen supply amount monitor is installed on the oxygen supply fan. A fuel amount monitor is installed on the burner. Temperature sensors are also installed at the smoke inlet and smoke outlet of the convection tube bundle.

[0009] It also includes an Internet of Things monitoring platform and a feedback adjustment module. The oxygen supply monitor, fuel quantity monitor and temperature sensor are all connected to the Internet of Things monitoring platform. The Internet of Things monitoring platform also performs feedback adjustment on the oxygen supply fan and burner through the feedback adjustment module.

[0010] Furthermore, the flue is installed at the smoke outlet of the convection tube bundle through a detachable flange assembly, and the temperature sensor is correspondingly installed inside the flange assembly.

[0011] Furthermore, the temperature sensor installed at the smoke inlet of the convection tube bundle is a rod-shaped sensor.

[0012] Furthermore, the flue gas heat exchange device includes a heat exchange shell, a smoke inlet hood connected to the flue is provided on the left side of the heat exchange shell, and a smoke outlet hood connected to the flue is provided on the right side; a lower end of the heat exchange shell is provided with a lower head, and an upper end of the heat exchange shell is provided with an upper head;

[0013] In addition, several media channels connected up and down are installed between the lower head and the upper head. The medium entering the lower head flows through the media channel into the upper head, and the flue gas entering from the liquid inlet hood passes through the area between adjacent media channels and exchanges heat with the medium inside the media channel to realize the waste heat recovery function.

[0014] Furthermore, heat exchange fins are installed between adjacent medium channels, with both ends of the heat exchange fins correspondingly fixed on the side walls of the medium channels on both sides, and the heat exchange fins are arranged to be installed obliquely between the medium channels;

[0015] The heat exchange fins facing upward in the middle are installed obliquely upward, while the heat exchange fins facing downward in the middle are installed obliquely downward. Parallel smoke inlets are provided at the front ends of the upper and lower adjacent heat exchange fins, and the sizes of the smoke inlets are evenly spaced.

[0016] A heat exchange gap for flue gas is formed between adjacent heat exchange fins, and each heat exchange fin is also provided with an air hole, through which the flue gas can flow when passing through the heat exchange gap.

[0017] Furthermore, the two heat exchange fins located in the middle are tilted upward and downward respectively, and wind-blocking fins are installed at the tail ends of the two heat exchange fins. The two ends of the wind-blocking fins are also fixed on the medium channels on both sides, and the wind-blocking fins are also installed with wind-disturbing fins protruding forward.

[0018] Furthermore, the wind-disturbing fins on the wind-blocking fins are also tilted; and the angle between the heat-exchanging fins located in the upper part and the heat-exchanging fins located in the lower part and the horizontal line is set to 45°.

[0019] Furthermore, the lower head is provided with a liquid inlet pipe, and the upper head is provided with a liquid outlet pipe; and the medium introduced is set to be cold water.

[0020] Beneficial effects: The present invention has the following beneficial effects:

[0021] 1) In the analysis and optimization of boiler operation, the present invention uses parameters such as the boiler's fuel quantity, air supply volume, oxygen supply volume, low-level heating value, and the temperature difference between the air inlet and exhaust gas as parameter data to control the boiler's temperature. Specifically, an oxygen supply monitor is installed in the oxygen supply fan to monitor the oxygen supply volume, and a fuel quantity detector is provided in the burner to monitor the daily fuel combustion volume. Temperature sensors are then installed at the smoke inlet and smoke outlet of the convection tube bundle to monitor the temperature difference between the smoke inlet and exhaust gas. This allows for accurate measurement of the temperature conditions within the boiler and the fuel combustion conditions. Feedback regulation of the oxygen supply fan and burner is then performed through the provided IoT monitoring platform and feedback regulation module, thereby precisely adjusting the boiler's operating efficiency.

[0022] 2) The present invention also provides a flue gas heat exchange device, which is mainly used to recover the waste heat of the flue gas. The flue gas from the flue passes through the medium channels, and cold water flows through the medium channels from bottom to top. The two exchange heat, and the cold water absorbs heat. In the present invention, heat exchange fins are provided between the medium channels, and are arranged in two structures, one inclined upward and the other inclined downward. After such an arrangement, the heat exchange gap through which the flue gas flows also becomes oblique. The purpose of such an arrangement is to enable the flue gas to truly contact the heat exchange fins over a large area. The flue gas is directly blocked by the heat exchange fins, and then the heat is quickly transferred to the heat exchange fins during the upward and downward movement, and then heat is exchanged with the cold water inside the medium channel. Compared with traditional parallel or V-shaped heat exchange fins, the heat exchange efficiency is significantly improved.

[0023] 3) The present invention also provides air holes on the heat exchange fins. After this arrangement, the upper and lower heat exchange fins can be connected through the air holes. After the flue gas passes through the heat exchange fins, it can also flow up and down through the air holes, increasing the turbulent flow path of the flue gas and improving the heat exchange efficiency.

[0024] 4) In the present invention, since the heat exchange fins in the upper part are inclined upward and the heat exchange fins in the lower part are inclined downward, a large gap will be left in the middle position. If the flue gas flows directly through this position, a lot of heat will be wasted. The present invention sets a wind-blocking fin at this position to block the smoke outlet. The two ends of the wind-blocking fin are still connected to the medium channels on both sides and installed, and heat exchange can also be carried out. Wind-disturbing fins are installed on the wind-blocking fins. After the flue gas enters this area, it will rotate back and forth to increase the turbulence, and flow back and forth in the air holes of the upper and lower heat exchange fins to increase the flue gas turbulence, thereby increasing the heat exchange efficiency. The overall structural setting is relatively novel and ingenious, which improves the heat exchange efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the present invention;

[0026] Figure 2 for Figure 1 Middle AA section view;

[0027] Figure 3 for Figure 2 Middle BB cross-section view. DETAILED DESCRIPTION

[0028] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solutions of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0029] like Figure 1 、 Figure 2 and Figure 3 As shown, a smart monitoring boiler based on the Internet of Things includes a boiler shell 1, a burner 2 is provided on the left side of the boiler shell 1, and the boiler shell 1 is divided into two areas by a pattern wall 3 provided inside the boiler shell 1, including a combustion chamber 4 connected to the burner 2 at the bottom, and an installation area for installing a convection tube bundle 5 at the top; a corresponding smoke inlet 6 is provided on the right side of the pattern wall 3 and the convection tube bundle 5, and a corresponding smoke outlet 7 is provided on the left side of the convection tube bundle 5, and a flue 8 is installed at the smoke outlet 7, and a flue gas heat exchange device 9 is also installed on the flue 8.

[0030] An oxygen supply fan 10 is also provided above the burner 2. An oxygen supply pipe 11 is installed on the oxygen supply fan 10 and extends into the combustion chamber 4. An oxygen supply amount monitor is installed on the oxygen supply fan 10. A fuel amount monitor is installed on the burner 2. Temperature sensors 12 are also installed at the smoke inlet 6 and the smoke outlet 7 of the convection tube bundle 5.

[0031] It also includes an Internet of Things monitoring platform 13 and a feedback adjustment module 14. The oxygen supply amount monitor, fuel amount monitor and temperature sensor 12 are all connected to the Internet of Things monitoring platform 13. The Internet of Things monitoring platform 13 also performs feedback adjustment on the oxygen supply fan 10 and the burner 2 through the feedback adjustment module 14.

[0032] The flue 8 is mounted at the smoke outlet 7 of the convection tube bundle 5 via a detachable flange assembly 15 , and the temperature sensor 12 is correspondingly mounted inside the flange assembly 15 .

[0033] The temperature sensor 12 installed at the smoke inlet 6 of the convection tube bundle 5 is a rod-shaped sensor.

[0034] In the analysis and optimization of boiler operation, the present invention adopts parameters such as the boiler's fuel quantity, air supply quantity, oxygen supply quantity, low calorific value, and the temperature difference between the air inlet and exhaust gas as parameter data to perform boiler temperature control. Specifically, an oxygen supply monitor is installed in the oxygen supply fan to monitor the oxygen supply quantity, and a fuel quantity detector is set in the burner to monitor the daily fuel combustion quantity. Then, temperature sensors are set at the smoke inlet and smoke outlet of the convection tube bundle to monitor the temperature difference between the smoke inlet and exhaust gas, so as to accurately measure the temperature conditions and fuel combustion conditions in the boiler. Then, the oxygen supply fan and the burner are feedback-regulated through the set Internet of Things monitoring platform and feedback regulation module, thereby accurately adjusting the boiler working efficiency.

[0035] The flue gas heat exchange device 9 includes a heat exchange shell 91, on the left side of which is provided a smoke inlet hood 92 connected to the flue 8, and on the right side of which is provided a smoke outlet hood 93 connected to the flue 8; the lower end of the heat exchange shell 91 is provided with a lower head 94, and the upper end of the heat exchange shell 91 is provided with an upper head 95.

[0036] In addition, several media channels 96 connected up and down are installed between the lower head 94 and the upper head 95. The medium entering the lower head 94 flows through the media channels 96 into the upper head 95, and the flue gas entering from the liquid inlet hood passes through the area between adjacent media channels 96, exchanges heat with the medium inside the media channels 96, and realizes the waste heat recovery function.

[0037] Heat exchange fins 97 are installed between adjacent medium channels 96 . Both ends of the heat exchange fins 97 are fixed to the side walls of the medium channels 96 on both sides, and the heat exchange fins 97 are arranged to be installed obliquely between the medium channels 96 .

[0038] The heat exchange fins 97 upward in the middle are installed obliquely upward, while the heat exchange fins 97 downward in the middle are installed obliquely downward. Parallel smoke inlets 6 are provided at the front ends of the upper and lower adjacent heat exchange fins 97, and the sizes of the smoke inlets 6 are evenly spaced up and down.

[0039] The present invention also provides a flue gas heat exchange device, which is mainly used to recover the waste heat of the flue gas. The flue gas coming out of the flue passes between the medium channels, and cold water flows through the medium channels from bottom to top. The two exchange heat, and the cold water absorbs heat. In the present invention, heat exchange fins are provided between the medium channels, and are arranged into two structures, one inclined upward and the other inclined downward. After such arrangement, the heat exchange gap through which the flue gas flows also becomes oblique. The purpose of such arrangement is to enable the flue gas to truly contact the heat exchange fins over a large area and a large range. The flue gas is directly blocked by the heat exchange fins, and then in the process of moving upward and downward, the heat can be quickly transferred to the heat exchange fins, and then heat is exchanged with the cold water inside the medium channel. Compared with traditional parallel or V-shaped heat exchange fins, the heat exchange efficiency is significantly improved.

[0040] A heat exchange gap for the flue gas is formed between adjacent heat exchange fins 97 , and each heat exchange fin 97 is also provided with an air hole 98 , through which the flue gas can flow when passing through the heat exchange gap.

[0041] In the present invention, air holes are also provided on the heat exchange fins. After such arrangement, the upper and lower heat exchange fins can be connected through the air holes. After the flue gas passes through the heat exchange fins, it can also flow up and down through the air holes, thereby increasing the turbulent flow path of the flue gas and improving the heat exchange efficiency.

[0042] The two heat exchange fins 97 located in the middle are tilted upward and downward respectively, and wind-blocking fins 99 are installed at the tail ends of the two heat exchange fins 97. Both ends of the wind-blocking fins 99 are also fixed on the medium channels 96 on both sides, and wind-disturbing fins 100 protruding forward are also installed on the wind-blocking fins 99.

[0043] The wind-disturbing fins 100 on the wind-blocking fins 99 are also tilted; and the angle between the heat-exchanging fins 97 located in the upper part and the heat-exchanging fins 97 located in the lower part and the horizontal line is set to 45°.

[0044] A liquid inlet pipe 101 is installed on the lower head 94, and a liquid outlet pipe 102 is installed on the upper head 95; and the medium introduced is set to be cold water.

[0045] In the present invention, since the heat exchange fins in the upper part are inclined upward and the heat exchange fins in the lower part are inclined downward, a large gap will be left in the middle position. If the flue gas flows directly through this position, a lot of heat will be wasted. The present invention sets a wind-blocking fin at this position to block the smoke outlet. The two ends of the wind-blocking fin are still connected to the medium channels on both sides and installed, and heat exchange can also be carried out. Wind-disturbing fins are installed on the wind-blocking fins. After the flue gas enters this area, it will rotate back and forth to increase the turbulence, and flow back and forth in the air holes of the upper and lower heat exchange fins to increase the flue gas turbulence, thereby increasing the heat exchange efficiency. The overall structural setting is relatively novel and ingenious, which improves the heat exchange efficiency and quality.

[0046] The above specific implementation method is only a preferred embodiment of the present invention and is not intended to limit the implementation of the present invention and the scope of the claims. All equivalent changes and modifications made based on the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. An intelligent monitoring boiler based on the Internet of Things, characterized by: The boiler shell (1) comprises a boiler shell (1), a burner (2) being provided on the left side of the boiler shell (1), and a pattern wall (3) provided inside the boiler shell (1) dividing the boiler shell (1) into two areas, including a combustion chamber (4) communicating with the burner (2) at the bottom, and an installation area for installing a convection tube bundle (5) at the top; a corresponding smoke inlet (6) is provided on the right side of the pattern wall (3) and the convection tube bundle (5), and a corresponding smoke outlet (7) is provided on the left side of the convection tube bundle (5), and a flue (8) is correspondingly installed at the smoke outlet (7), and a flue gas heat exchange device (9) is also installed on the flue (8); An oxygen supply fan (10) is also provided above the burner (2), and an oxygen supply pipe (11) is installed on the oxygen supply fan (10) and extends into the combustion chamber (4). An oxygen supply amount monitor is installed on the oxygen supply fan (10), a fuel amount monitor is installed on the burner (2), and temperature sensors (12) are also installed at the smoke inlet (6) and smoke outlet (7) of the convection tube bundle (5); It also includes an Internet of Things monitoring platform (13) and a feedback adjustment module (14), wherein the oxygen supply monitor, fuel supply monitor and temperature sensor (12) are respectively connected to the Internet of Things monitoring platform (13), and the Internet of Things monitoring platform (13) performs feedback adjustment on the oxygen supply fan (10) and the burner (2) through the feedback adjustment module (14); the flue gas heat exchange device (9) includes a heat exchange shell (91), a smoke inlet hood (92) connected to the flue (8) is provided on the left side of the heat exchange shell (91), and a smoke outlet hood (93) connected to the flue (8) is provided on the right side; a lower end of the heat exchange shell (91) is provided with a lower head (94), and an upper end of the heat exchange shell (91) is provided with an upper head (95); A plurality of media channels (96) communicating with each other are installed between the lower head (94) and the upper head (95). The medium entering the lower head (94) flows through the media channels (96) and enters the upper head (95). The flue gas entering from the liquid inlet hood passes through the area between adjacent media channels (96) and exchanges heat with the medium inside the media channels (96), thereby realizing the waste heat recovery function. A heat exchange fin (97) is further installed between adjacent medium channels (96), with both ends of the heat exchange fin (97) correspondingly fixed on the side walls of the medium channels (96) on both sides, and the heat exchange fin (97) is arranged to be installed obliquely between the medium channels (96); The heat exchange fins (97) facing upward in the middle are installed obliquely upward, while the heat exchange fins (97) facing downward in the middle are installed obliquely downward, and parallel smoke inlets (6) are provided at the front ends of the upper and lower adjacent heat exchange fins (97), and the sizes of the smoke inlets (6) are evenly spaced from top to bottom; A heat exchange gap for flue gas is formed between adjacent heat exchange fins (97), and each heat exchange fin (97) is also provided with an air hole (98), so that flue gas can flow through the air hole (98) when passing through the heat exchange gap; The two heat exchange fins (97) located in the middle are tilted upward and downward, respectively. Wind-blocking fins (99) are installed at the tail ends of the two heat exchange fins (97). Both ends of the wind-blocking fins (99) are also fixed to the medium channels (96) on both sides. Wind-disturbing fins (100) protruding forward are also installed on the wind-blocking fins (99).

2. The intelligent monitoring boiler based on the Internet of Things according to claim 1 is characterized by: The flue (8) is installed at the smoke outlet (7) of the convection tube bundle (5) through a detachable flange assembly (15), and the temperature sensor (12) is correspondingly installed inside the flange assembly (15).

3. The intelligent monitoring boiler based on the Internet of Things according to claim 1 is characterized in that: The temperature sensor (12) installed at the smoke inlet (6) of the convection tube bundle (5) is a sensor with a rod-shaped structure.

4. The intelligent monitoring boiler based on the Internet of Things according to claim 1 is characterized in that: The wind-disturbing fins (100) on the wind-blocking fins (99) are also tilted; and the angle between the heat-exchanging fins (97) located in the upper part and the heat-exchanging fins (97) located in the lower part and the horizontal line is set to 45°.

5. The intelligent monitoring boiler based on the Internet of Things according to claim 4 is characterized in that: The lower head (94) is provided with a liquid inlet pipe (101), and the upper head (95) is provided with a liquid outlet pipe (102); and the medium introduced is set to be cold water.

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