Central heating equipment

Abstract

The present invention belongs to the technical field of gas heating, and discloses a centralized heating equipment, including: a gas electric control system, a secondary burner and a cooling system; the gas electric control system includes a gas pipeline, a gas control valve and an ignition gun; the gas pipeline is connected to the gas control valve and the ignition gun respectively; the cooling system includes a circulating water pipeline, a flue pipe, a primary heat exchanger, a secondary heat exchanger and an air supply pipeline; the circulating water pipeline is connected to the primary heat exchanger, the secondary heat exchanger and the secondary burner respectively, the flue pipe is connected to the top of the primary heat exchanger through the secondary heat exchanger, and the bottom of the primary heat exchanger is connected to the secondary burner; the secondary burner includes an energy-gathering compression disk, a guide turbine disk, a guide diverter disk, a gas quantitative balancing disk and a cooling water jacket. The centralized heating equipment of the present invention has the advantages of high efficiency, energy saving, environmental protection and convenient maintenance.

Description

Technical Field

[0001] The invention relates to the technical field of gas heating, and in particular to a central heating device. Background Art

[0002] Central heating in winter in the north is a major livelihood project. Heating is a social service that solves the basic living needs of residents in northern my country to keep warm in winter. It is extensive and universal. At present, urban central heating mainly uses coal-fired hot water boilers or gas boilers for long-distance heating. This type of central heating has the following problems:

[0003] 1) High energy consumption: Gas boilers are used for urban central heating, which consumes extremely high energy;

[0004] 2) High emissions: Coal-fired hot water boilers use coal as fuel, and coal combustion produces a large amount of waste gas and waste residue. However, existing gas boilers are difficult to fully burn gas, and when the gas is not fully burned, a large amount of waste gas will be generated. In other words, the existing centralized heating methods are not conducive to reducing the emission of carbon-containing pollutants generated by heating, causing greater pollution to the environment;

[0005] 3) Low efficiency: Existing gas boilers have difficulty in fully burning gas, resulting in low fuel utilization, which in turn leads to high heating costs. Summary of the invention

[0006] The main purpose of the present invention is to provide a centralized heating device, aiming to solve at least one technical problem of the above-mentioned background technology existing in the existing long-distance centralized heating.

[0007] To achieve the above object, the present invention provides a centralized heating device, comprising: a gas electric control system, a secondary burner and a cooling system;

[0008] The gas electronic control system comprises a gas pipeline, a gas control valve and an ignition gun; the gas pipeline is connected to the gas control valve; the ignition gun comprises a gas mixing chamber, a spark plug and a gun barrel, one end of the gas mixing chamber is connected to the spark plug, and the other end is connected to the gun barrel, the gas mixing chamber is provided with an air inlet and a gas inlet, and the gas inlet is connected to the gas pipeline;

[0009] The cooling system includes a circulating water pipeline, a flue pipe, a primary heat exchanger, a secondary heat exchanger and an air supply pipeline; the circulating water pipeline is respectively connected to the primary heat exchanger, the secondary heat exchanger and the secondary burner; the flue pipe is connected to the top of the primary heat exchanger through the secondary heat exchanger, and the bottom of the primary heat exchanger is connected to the secondary burner; the ignition gun is arranged on one side of the bottom of the primary heat exchanger, and the air inlet of the ignition gun is connected to the air supply pipeline;

[0010] The secondary burner includes an energy-gathering compression disk, a guide turbine disk, a guide diverter disk, a gas quantification balancing disk and a cooling water jacket; the energy-gathering compression disk is fixedly mounted on the guide turbine disk, the guide turbine disk is mounted on the gas quantification balancing disk, the gas quantification balancing disk is mounted in the cooling water jacket, the guide diverter disk is mounted in the guide turbine disk, and one end of the guide diverter disk is connected to the energy-gathering compression disk, and the other end of the guide diverter disk is connected to the gas quantification balancing disk; the guide diverter disk is connected to the air supply pipeline, and the gas quantification balancing disk is connected to the gas pipeline.

[0011] Preferably, the gas electric control system further comprises a flame detector, a wind pressure sensor, a water pressure sensor and a temperature sensor; the flame observation port is installed above the energy-gathering compression disk, and the flame detector is installed opposite to the flame observation port.

[0012] Preferably, the gas pipeline includes a main gas pipeline, a first gas branch, a second gas branch, a first control valve and a second control valve; the main gas pipeline is connected to the first gas branch and the second gas branch, respectively, the first control valve is installed on the first gas branch, and the second control valve is installed on the second gas branch.

[0013] Preferably, the first control valve and the second control valve are manual valves or solenoid valves.

[0014] Preferably, the cooling system further comprises a condensed water loop, and the condensed water loop is installed on the end surface of the guide turbine disk of the secondary combustor.

[0015] Preferably, the circulating water pipeline includes an inlet pipeline and an outlet pipeline. The cold water in the inlet pipeline enters the secondary burner through the secondary heat exchanger, cools the secondary burner, and then circulates to the primary heat exchanger, and flows out hot water through the outlet pipeline.

[0016] Preferably, the primary heat exchanger includes a first isolation part, a first heat exchange part, a second isolation part and a gas cooling part which are arranged in sequence above the first isolation part; the bottom of the first isolation part is connected to the secondary burner; a first heat exchange tube is provided inside the first heat exchange part, and the first heat exchange part is connected to the water outlet pipeline; the gas cooling part is connected to the flue pipe.

[0017] Preferably, the secondary heat exchanger includes a water storage part and a second heat exchange part arranged above the water storage part; the bottom of the water storage part is connected to the front section of the water inlet pipe, a second heat exchange tube is provided inside the second heat exchange part, the top of the second heat exchange part is connected to the rear section of the water inlet pipe, and a flue through hole for connecting to the flue pipe is opened on the side wall of the second heat exchange part.

[0018] Preferably, the water inlet pipeline includes a water inlet main pipe, a first water inlet branch pipe connected to the water inlet main pipe, and a second water inlet branch pipe; wherein the water inlet main pipe is connected to the water inlet of the cooling water jacket through the secondary heat exchanger; the output end of the first water inlet branch pipe is connected to the gas cooling part; the output end of the second water inlet branch pipe is connected to the water inlet of the guide turbine disc;

[0019] The water outlet pipeline includes a water outlet main pipe, a first water outlet branch pipe connected to the water outlet main pipe, and a second water outlet branch pipe; wherein the input end of the water outlet main pipe is connected to the water outlet of the cooling water jacket, and the output end of the water outlet main pipe discharges hot water after passing through the primary heat exchanger; the input end of the first water outlet branch pipe is connected to the flue pipe; and the second water outlet branch pipe is connected to the water outlet of the guide turbine disc.

[0020] Preferably, the central heating equipment also includes a base, the primary heat exchanger and the secondary burner are respectively installed on the top surface of the base, the interior of the base is provided with a accommodating cavity with a top opening, the circulating water pipeline passes through the first perforation at the top of the accommodating cavity and is connected to the bottom of the primary heat exchanger, the gas pipeline passes through the second perforation at the top of the accommodating cavity and is connected to the gas inlet of the secondary burner, and the air supply pipeline passes through the third perforation at the top of the accommodating cavity and is connected to the air supply outlet of the secondary burner.

[0021] The central heating equipment provided by the present invention has the following beneficial effects:

[0022] 1) The central heating equipment of the present invention can realize the function of automatically delivering gas to the secondary burner and the ignition control function by providing a gas electronic control system including a gas pipeline, a gas control valve and an ignition gun;

[0023] 2) The central heating equipment of the present invention can not only cool the secondary burner by setting a circulating water pipeline, thereby increasing the service life of the secondary burner, but also cool the flue gas in the flue pipe, thereby reducing environmental pollution;

[0024] 3) The central heating equipment of the present invention, by providing a primary heat exchanger and a secondary heat exchanger, is conducive to improving the energy conversion efficiency between the heat generated by the secondary burner and the cold water, thereby reducing gas consumption;

[0025] 4) The central heating equipment of the present invention, by providing a secondary burner including an energy-gathering compression disk, a guide turbine disk, a guide diverter disk, a gas quantitative balancing disk and a cooling water jacket, can allow the flame to rotate, collide and compress in the annular chamber, complete the secondary energy-gathering combustion, and generate less pollutants in the full combustion process, which is more environmentally friendly;

[0026] 5) The central heating equipment of the present invention, by providing a gas electric control system, a secondary burner and a cooling system, can be installed in a residential building that requires heating to provide central heating to multiple rooms. The layout of the gas pipeline, circulating water pipeline, flue pipe and air supply pipeline is more reasonable, maintenance is more convenient, and the heating safety of residents is effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 The structure of a central heating device according to an embodiment of the present invention is shown in FIG. Figure 1 ;

[0029] Figure 2 The structure of a central heating device according to an embodiment of the present invention is shown in FIG. Figure 2 ;

[0030] Figure 3 It is a structural schematic diagram of an ignition gun of a central heating device according to an embodiment of the present invention;

[0031] Figure 4 It is a structural schematic diagram of a primary heat exchanger of a central heating device according to an embodiment of the present invention;

[0032] Figure 5 It is a structural schematic diagram of a secondary heat exchanger of a central heating device according to an embodiment of the present invention;

[0033] Figure 6 It is a structural schematic diagram of a secondary burner of a central heating device in one embodiment of the present invention;

[0034] Figure 7 for Figure 6 Schematic cross-section of the secondary burner.

[0035] The serial numbers in the figure are as follows:

[0036] 1. Gas pipeline; 11. Gas main pipeline; 12. First gas branch; 13. Second gas branch; 2. Gas control valve; 3. Ignition gun; 31. Gas mixing chamber; 32. Spark plug; 33. Gun barrel; 34. Air inlet; 35. Gas inlet; 4. Circulating water pipeline; 41. Water inlet pipeline; 42. Water outlet pipeline; 5. Flue pipe; 6. Primary heat exchanger; 61. First isolation part; 62. First heat exchange part; 63. Second isolation part; 64. Gas cooling part; 65. First heat exchange tube; 7. Secondary heat exchanger; 71. Water storage part; 72. Second heat exchange part; 73. Second heat exchange tube; 8. Air supply pipeline ; 9. Secondary burner; 91. Energy-gathering compression disk; 911. Energy-gathering pressure ring; 912. Compression disk body; 92. Guide turbine disk; 921. Turbine disk cavity; 922. Water cooling ring; 93. Guide diverter disk; 931. First cover; 932. Guide diverter plate; 933. Second cover; 934. Fixed column; 94. Gas quantitative balancing disk; 941. Quantitative balancing disk cover; 942. Quantitative balancing disk cavity; 943. Quantitative balancing disk base; 944. Gas balancing pipe; 95. Cooling water jacket; 96. Annular chamber; 97. Quantitative balancing chamber; 101. Flame observation port; 102. Condensate loop; 103. Base. DETAILED DESCRIPTION

[0037] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0038] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0039] 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", "axial", "radial", "circumferential" 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 limiting the present invention.

[0040] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0042] The present invention provides a centralized heating device, referring to Figure 1 , Figure 2 and Figure 3 , in one embodiment, the central heating equipment comprises: a gas electric control system, a secondary burner 9 and a cooling system;

[0043] The gas electronic control system comprises a gas pipeline 1, a gas control valve 2 and an ignition gun 3; the gas pipeline 1 is connected to the gas control valve 2; the ignition gun 3 comprises a gas mixing chamber 31, a spark plug 32 and a gun barrel 33, one end of the gas mixing chamber 31 is connected to the spark plug 32, and the other end is connected to the gun barrel 33, the gas mixing chamber 31 is provided with an air inlet 34 and a gas inlet 35, and the gas inlet 35 is connected to the gas pipeline 1;

[0044] The cooling system includes a circulating water pipeline 4, a flue pipe 5, a primary heat exchanger 6, a secondary heat exchanger 7 and an air supply pipeline 8; the circulating water pipeline 4 is respectively connected to the primary heat exchanger 6, the secondary heat exchanger 7 and the secondary burner 9; the flue pipe 5 is connected to the top of the primary heat exchanger 6 through the secondary heat exchanger 7, and the bottom of the primary heat exchanger 6 is connected to the secondary burner 9; the ignition gun 3 is arranged on one side of the bottom of the primary heat exchanger 6, and the air inlet 34 of the ignition gun 3 is connected to the air supply pipeline 8;

[0045] The secondary burner 9 includes an energy-gathering compression disk 91, a guide turbine disk 92, a guide diverter disk 93, a gas quantification balancing disk 94 and a cooling water jacket 95; the energy-gathering compression disk 91 is fixedly mounted on the guide turbine disk 92, the guide turbine disk 92 is mounted on the gas quantification balancing disk 94, the gas quantification balancing disk 94 is mounted in the cooling water jacket 95, the guide diverter disk 93 is mounted in the guide turbine disk 92, and one end of the guide diverter disk 93 is connected to the energy-gathering compression disk 91, and the other end of the guide diverter disk 93 is connected to the gas quantification balancing disk 94; the guide diverter disk 93 is connected to the air supply pipeline 8, and the gas quantification balancing disk 94 is connected to the gas pipeline 1.

[0046] It can be understood that the central heating equipment of this embodiment mainly includes a gas-fired electric control system, a secondary burner 9 connected to the gas-fired electric control system, and a cooling system connected to the secondary burner 9 .

[0047] The gas electronic control system mainly includes a gas pipeline 1, a gas control valve 2 and an ignition gun 3 respectively connected to the gas pipeline 1, wherein the gas pipeline 1 is used to transport gas to the secondary burner 9, the gas control valve 2 is used to control the on and off of the gas, and the ignition gun 3 is used for ignition in the primary combustion stage. That is, when ignition is required, the gas pipeline 1 is opened through the gas control valve 2, and the gas in the gas pipeline 1 is controlled to be transported at a preset flow rate, and the ignition gun is started through a manual valve or an electric valve to start a primary combustion. After a preset first combustion time, the flame automatically extinguishes and enters the secondary combustion. Optionally, the preset first time is 10 to 20 seconds.

[0048] The ignition gun 3 mainly includes a gas mixing chamber 31, a spark plug 32 and a barrel 33. The gas mixing chamber 31 is an L-shaped cavity or a three-dimensional cavity of other shapes. One end of the gas mixing chamber 31 is connected to the spark plug 32, and the other end is connected to the barrel 33 extending into the bottom of the primary heat exchanger 6, and the tube body of the barrel 33 is connected to one side of the bottom of the primary heat exchanger 6; the gas mixing chamber 31 is provided with an air inlet 34 for connecting to the air supply pipeline 8, and a gas inlet 35 for connecting to the gas pipeline 1. Optionally, the air inlet 34 is arranged on the bottom side of the gas mixing chamber 31, and the gas pipeline 1 is arranged on the right side of the gas mixing chamber 31.

[0049] The cooling system mainly includes a circulating water pipeline 4, a flue pipe 5, a primary heat exchanger 6, a secondary heat exchanger 7 and an air supply pipeline 8, wherein the circulating water pipeline 4 is used to transmit cold water and hot water after heat exchange with two heat exchangers; the flue pipe 5 is used to discharge flue gas, which is mainly composed of a large amount of hot air and a small amount of residual gas after secondary combustion of gas; the primary heat exchanger 6 is used to exchange energy between the cold water transmitted by the circulating water pipeline 4 and the heat energy generated by the secondary burner 9, and the secondary heat exchanger 7 is used to exchange heat between the cold water transmitted by the circulating water pipeline 4 and the flue gas in the flue pipe 5; the air supply pipeline 8 is used to pass air into the secondary burner 9. That is, the cold water in the water tank first enters the secondary heat exchanger 7 through the circulating water pipeline 4, and then enters the secondary burner 9 to cool the secondary burner 9, and then enters the primary heat exchanger 6, and finally the hot water is transported to the heating system in the room through the circulating water pipeline 4.

[0050] The secondary burner 9 mainly includes a cooling water jacket 95, a gas quantization balancing disk 94 installed in the cooling water jacket 95, a guide turbine disk 92 installed on the upper end of the gas quantization balancing disk 94, a guide diverter disk 93 installed in the middle of the secondary burner 9, and an energy-gathering compression disk 91 installed on the upper end of the guide turbine disk 92. Among them, the cooling water jacket 95 is used to cool the gas quantization balancing disk 94, and the gas quantization balancing disk 94 is used to make the gas balanced to produce a spray state; the guide turbine disk 92 is used to change the rotation direction of the wind and the flame to form a wind-gathering effect in the annular chamber 96 corresponding to the guide turbine disk 92; the guide diverter disk 93 is used to divert air and cooperate with the guide turbine disk 92 to change the collision direction of the wind and the flame, so that the secondary burner 9 obtains higher heat; the energy-gathering compression disk 91 is used to compress the primary combustion flame and perform secondary combustion energy gathering to produce a flame beam. That is, after the primary combustion, the flame on the surface of the energy-gathering compression disk 91 is compressed and extinguished, and at the same time, the secondary burner 9 generates atomized gas through the gas quantization equalization disk 94, and the energy-gathering compression disk 91, the guide turbine disk 92 and the guide diverter disk 93 allow the atomized gas to rotate, collide and compress in the annular chamber 96 corresponding to the guide turbine disk 92, and perform secondary combustion. After the secondary combustion is preset for the second time, a high-energy flame beam is emitted from the bottom of the energy-gathering compression disk 91. Optionally, the preset second time is 10 to 20 seconds.

[0051] In summary, the central heating equipment of this embodiment has the following beneficial effects:

[0052] 1) The central heating equipment of this embodiment can realize the function of automatically delivering gas to the secondary burner 9 and the ignition control function by providing a gas electronic control system including a gas pipeline, a gas control valve 2 and an ignition gun 3;

[0053] 2) The central heating equipment of this embodiment can not only cool the secondary burner 9 by setting the circulating water pipeline 4, thereby increasing the service life of the secondary burner 9, but also cool the hot air in the flue pipe 5, thereby reducing environmental pollution;

[0054] 3) The central heating equipment of this embodiment, by providing the primary heat exchanger 6 and the secondary heat exchanger 7, is conducive to improving the energy conversion efficiency between the heat generated by the secondary burner 9 and the cold water, thereby reducing the gas consumption;

[0055] 4) The centralized heating equipment of this embodiment, by providing a secondary burner 9 including an energy-gathering compression disk 91, a guide turbine disk 92, a guide diverter disk 93, a gas quantization balancing disk 94 and a cooling water jacket 95, can allow the flame to rotate, collide and compress in the annular chamber 96, complete the secondary energy-gathering combustion and generate less pollutants in the full combustion process, which is more environmentally friendly;

[0056] 5) The central heating equipment of this embodiment, by providing a gas electric control system, a secondary burner 9 and a cooling system, can be installed in a residential building that requires heating to provide central heating to multiple rooms. The layout of the gas pipeline 1, circulating water pipeline, flue pipe 5 and air supply pipeline 8 is more reasonable, maintenance is more convenient, and the heating safety of residents is effectively guaranteed.

[0057] In a preferred embodiment, reference Figure 1 and Figure 2 The gas electric control system also includes a flame observation port 101, a flame detector, a wind pressure sensor, a water pressure sensor and a temperature sensor; the flame observation port 101 is installed above the energy-gathering compression disk 91, and the flame detector is installed opposite to the flame observation port 101.

[0058] It can be understood that the gas electric control system of this embodiment includes a gas pipeline 1, a gas control valve 2, an ignition gun 3, a flame detector 10, a wind pressure sensor, a water pressure sensor and a temperature sensor. Among them, the flame observation port 101 is installed on the side wall of the primary heat exchanger 6 corresponding to the upper side of the energy-gathering compression disk 91, and is used to observe the primary combustion flame and the secondary combustion flame beam; the flame detector is installed opposite to the flame observation port 101; the wind pressure sensor is installed at any position of the air supply pipeline 8, preferably at the outlet of the fan, and is used to detect the wind pressure entering the secondary burner 9; the water pressure sensor is installed at any position of the circulating water pipeline 4, preferably at the front end of the water pump, and is used to detect the water pressure entering the secondary heat exchanger 7; the detection end of the temperature sensor is installed on the inner wall of the primary heat exchanger 6, and is used to detect the hot water temperature in the primary heat exchanger 6.

[0059] Furthermore, the gas electric control system may further include an ignition control valve, which may include a manual valve and / or an electric valve. In this embodiment, manual or automatic ignition can be achieved through the ignition control valve.

[0060] Furthermore, the gas electronic control system can also include a high-voltage package, a gas alarm and a display, etc. The high-voltage package is used for ignition in the secondary combustion stage; the gas alarm is used to alarm when a gas leak is detected in the gas pipeline 1; the display is used to display the wind pressure, water pressure and temperature in real time.

[0061] It is understandable that the high-voltage package is installed at the front end of the base and is electrically connected to the intermediate relay.

[0062] In a preferred embodiment, reference Figure 1 and Figure 2 The gas pipeline 1 includes a main gas pipeline 11, a first gas branch 12, a second gas branch 13, a first control valve and a second control valve; the main gas pipeline 11 is connected to the first gas branch 12 and the second gas branch 13 respectively, the first control valve is installed on the first gas branch 12, and the second control valve is installed on the second gas branch 13.

[0063] It can be understood that the gas pipeline 1 of this embodiment mainly includes a gas main pipeline 11, a first gas branch 12 and a second gas branch 13 respectively connected to the gas main pipeline 11, a first control valve for controlling the first gas branch 12, and a second control valve for the second gas branch 13. Among them, the first end of the gas main pipeline 11 is connected to the fan, and the other end is connected to the first ends of the two gas branches, which is used to transmit the wind generated by the fan to the two gas branches; the second end of the first gas branch 12 is connected to the bottom of the primary heat exchanger 6 (or the first isolation part 61), which is used to pass gas into the first isolation part 61 and perform a primary combustion on the end face of the energy-gathering compression disk 91; the second end of the second gas branch 13 is connected to the gas inlet of the secondary burner 9, which is used to pass gas into the secondary burner 9 for secondary energy-gathering combustion. The gas pipeline 1 of this embodiment can realize the control of different gas branches and achieve the purpose of staged combustion by setting the gas main pipeline 11, two gas branches and two control valves.

[0064] Furthermore, the gas pipeline 1 further comprises a first flow meter and a second flow meter, wherein the first flow meter is installed on the first gas branch 12 , and the second flow meter is installed on the second gas branch 13 .

[0065] That is, the gas pipeline 1 of this embodiment can monitor the gas flow rate transmitted in each gas branch in real time through the flow meter, and then cooperate with the solenoid valve to realize the flow rate control of each gas branch to meet the needs of different combustion stages.

[0066] In a preferred embodiment, the first control valve and the second control valve are manual valves or solenoid valves.

[0067] It can be understood that in the gas electric control system of this embodiment, the gas control valve 2 includes a first control valve and a second control valve. When the gas control valve 2 is a manual valve, the manual valve can be opened manually to control the gas to flow into the corresponding gas branch; when the gas control valve 2 is a solenoid valve, the solenoid valve can be electrically activated to control the gas to flow into the corresponding gas branch. This embodiment uses a manual valve or a solenoid valve to open the corresponding gas branch, which can improve the convenience of gas control.

[0068] In a preferred embodiment, reference Figure 1 and Figure 2 The cooling system also includes a condensate loop 102 , which is installed on the end surface of the guide turbine disk 92 of the secondary burner 9 .

[0069] It can be understood that the cooling system of this embodiment includes a circulating water pipeline 4, a flue pipe 5, a primary heat exchanger 6, a secondary heat exchanger 7, an air supply pipeline 8 and a condensed water loop 102. Among them, the condensed water loop 102 is installed on the end faces of the energy-gathering compression disk 91 and the guide turbine disk 92. Preferably, when a condensed water outlet groove is provided on the end faces of the energy-gathering compression disk 91 and the guide turbine disk 92, the condensed water loop 102 is installed in the condensed water outlet groove. The condensed water outlet groove of this embodiment can take away the condensed water on the surface of the energy-gathering compression disk 91 by setting the condensed water loop 102, so as to prevent the condensed water from entering the annular chamber 96 corresponding to the guide turbine disk 92.

[0070] In a preferred embodiment, the circulating water pipeline 4 includes a water inlet pipeline 41 and a water outlet pipeline 42. The cold water in the water inlet pipeline 41 enters the secondary burner 9 through the secondary heat exchanger 7, cools the secondary burner 9, and then circulates to the primary heat exchanger 6, and hot water flows out through the water outlet pipeline 42.

[0071] It can be understood that the circulating water pipeline 4 of the present embodiment includes a water inlet pipeline 41 and a water outlet pipeline 42, and the water inlet pipeline 41 is divided into a first part and a second part, one end of the first part is connected to the water tank through a water pump, and the other end is connected to the bottom of the secondary heat exchanger 7, and one end of the second part is connected to the top of the secondary heat exchanger 7, and the other end is connected to the water inlet of the secondary burner 9. Preferably, the water inlet of the secondary burner 9 includes a water jacket water inlet and a cooling ring water inlet, the water jacket water inlet is opened on one side of the cooling water jacket 95, and the cooling ring water inlet is opened on one side of the guide turbine disc 92.

[0072] The water outlet pipeline 42 is divided into a third part and a fourth part. One end of the third part is connected to the water outlet of the secondary burner 9, and the other end is connected to one side of the heat exchange part of the primary heat exchanger 6. One end of the fourth part is connected to the other side of the heat exchange part of the primary heat exchanger 6, and the other end is respectively connected to the flue pipe 5 and the heating loop in the room, and can flow back into the water tank after passing through the heating loop. Preferably, the water outlet of the secondary burner 9 includes a water jacket outlet and a cooling ring outlet. The water jacket outlet is opened on the other side of the cooling water jacket 95, and the cooling ring outlet is opened on the other side of the guide turbine disc 92.

[0073] The above-mentioned circulating water pipeline 4 can realize the circulation of cold water and hot water by setting the water inlet pipeline 41 and the water outlet pipeline 42, thereby realizing central heating of multiple rooms.

[0074] In a preferred embodiment, reference Figure 4 The primary heat exchanger 6 includes a first isolation part 61, a first heat exchange part 62, a second isolation part 63 and a gas cooling part 64 which are arranged in sequence above the first isolation part 61; the bottom of the first isolation part 61 is connected to the secondary burner 9; a first heat exchange pipe 65 is provided inside the first heat exchange part 62, and the first heat exchange part 62 is connected to the water outlet pipeline 42; the gas cooling part 64 is connected to the flue pipe 5.

[0075] It can be understood that the primary heat exchanger 6 of this embodiment includes a first isolating portion 61, a first heat exchange portion 62, a second isolating portion 63 and a gas cooling portion 64. Among them, the bottom of the first isolating portion 61 is installed on the secondary burner 9 and is connected to the annular chamber 96 of the secondary burner 9. A shell through hole is provided on the side of the first isolating portion 61, and an ignition gun 3 is installed in the shell through hole. The ignition gun 3 is respectively connected to the first gas branch 12 and the air supply pipeline 8. The first isolating portion 61 is used to provide a combustible space for primary combustion at the end face of the energy-gathering compression disk 91; a first layered plate is installed at the bottom of the first heat exchange portion 62, a second layered plate is installed at the top of the first heat exchange portion 62, and a plurality of first heat exchange tubes 65 are installed between the first layered plate and the second layered plate. A first heat exchange tube 65 is provided on both sides of the first heat exchange portion 62. The first heat exchange part 62 is used for exchanging the high heat generated by the secondary combustion with water; the third layered plate is installed on the top of the second isolation part 63, and a gas discharge hole is opened in the middle of the third layered plate, and the gas discharge hole can be connected to the flue pipe 5; the second isolation part 63 is used to discharge the hot air (the hot air contains a small amount of residual gas of the combustible gas after the secondary combustion) through the gas discharge hole; the top of the gas cooling part 64 is connected to the flue pipe 5, and a water inlet is opened on one side of the gas cooling part 64, which can be connected to the second part of the water inlet pipeline 41 (or the first water inlet branch pipe), and the gas cooling part 64 is used to cool the discharged hot air.

[0076] Preferably, when the air supply pipeline 8 includes an air supply main pipe and an air supply branch pipe connected to the air supply main pipe, the shell through hole formed in the first isolation portion 61 is connected to the first gas branch 12 and the air supply branch pipe respectively after passing through the ignition gun 3.

[0077] The primary heat exchanger 6 can achieve hot air cooling and efficient energy exchange by providing the first isolation part 61, the first heat exchange part 62, the second isolation part 63 and the gas cooling part 64.

[0078] In a preferred embodiment, reference Figure 5 The secondary heat exchanger 7 includes a water storage part 71 and a second heat exchange part 72 arranged above the water storage part 71; the bottom of the water storage part 71 is connected to the front section of the water inlet pipeline 41, a second heat exchange pipe 73 is arranged inside the second heat exchange part 72, the top of the second heat exchange part 72 is connected to the rear section of the water inlet pipeline 41, and a flue through hole for connecting to the flue pipe 5 is opened on the side wall of the second heat exchange part 72.

[0079] It can be understood that the secondary heat exchanger 7 of this embodiment includes a water storage part 71 and a second heat exchange part 72 arranged in sequence from bottom to top. Among them, the bottom of the water storage part 71 is connected to the front section of the water inlet pipeline 41, which is used to temporarily store the water transported by the water inlet pipeline 41; the bottom of the second heat exchange part 72 is provided with a first fixing plate, and the second heat exchange part 72 is provided with a second fixing plate near the top, and a plurality of second heat exchange tubes 73 are installed between the first fixing plate and the second fixing plate. Flue holes are symmetrically opened above the side wall of the second heat exchange part 72, and part of the flue pipe 5 can be installed in the flue hole. The second heat exchange part 72 is used to cool the flue gas in the flue pipe 5.

[0080] The above-mentioned secondary heat exchanger 7 cools the exhaust flue gas by providing a water storage part 71 and a second heat exchange part 72, thereby achieving the purpose of reducing environmental pollution. That is, in this embodiment, by providing a primary heat exchanger 6 and a secondary heat exchanger 7, the primary heat exchanger 6 is used to exchange heat with the heat generated by the secondary burner 9, and the secondary heat exchanger 7 is used to exchange heat with the hot air in the flue pipe 5, so that the energy conversion efficiency of heat and cold water can be maximized, thereby reducing gas consumption, and while the secondary heat exchanger 7 is used to perform heat exchange and cooling on the flue gas in the flue pipe 5, environmental pollution can be reduced.

[0081] In a preferred embodiment, the water inlet pipeline 41 includes a water inlet main pipe, a first water inlet branch pipe connected to the water inlet main pipe, and a second water inlet branch pipe; wherein the water inlet main pipe is connected to the water inlet of the cooling water jacket 95 through the secondary heat exchanger 7; the output end of the first water inlet branch pipe is connected to the gas cooling part 64; the output end of the second water inlet branch pipe is connected to the water inlet of the guide turbine disc 92;

[0082] The water outlet pipeline 42 includes a water outlet main pipe, a first water outlet branch pipe connected to the water outlet main pipe, and a second water outlet branch pipe; wherein, the input end of the water outlet main pipe is connected to the water outlet of the cooling water jacket 95, and the output end of the water outlet main pipe discharges hot water after passing through the primary heat exchanger 6; the input end of the first water outlet branch pipe is connected to the flue pipe 5; and the second water outlet branch pipe is connected to the water outlet of the guide turbine disc 92.

[0083] It can be understood that the circulating water pipeline 4 of this embodiment includes an inlet pipeline 41 and an outlet pipeline 42. The inlet pipeline 41 may include an inlet main pipe, a first inlet branch pipe and a second inlet branch pipe, and the outlet pipeline 42 may include an outlet main pipe, a first outlet branch pipe and a second outlet branch pipe.

[0084] At this time, the centralized heating equipment of this embodiment first forms a first circulation water circuit through the water inlet main pipe, the secondary heat exchanger 7, the cooling water jacket 95, the primary heat exchanger 6 and the water outlet main pipe, and then forms a second circulation water circuit through the first water inlet branch pipe, the surrounding of the guide turbine disc 92 and the first water outlet branch pipe. Finally, a third circulation water circuit is formed through the second water inlet branch pipe, the flue pipe 5, the gas cooling part 64 at the top of the primary heat exchanger 6 and the second water outlet branch pipe, so as to absorb the heat of the flue gas through the third circulation water circuit and discharge the water vapor in the flue gas.

[0085] The above-mentioned circulating water pipeline 4 can form multiple circulating water circuits by arranging a water inlet main pipe, two water inlet branches, a water outlet main pipe, and two water outlet branches, which can not only realize rapid cooling and temperature reduction of the secondary burner 9 and increase the service life of the secondary burner 9, but also realize cooling and temperature reduction of the exhausted flue gas and reduce environmental pollution.

[0086] In a preferred embodiment, reference Figure 1 and Figure 2The central heating equipment also includes a base 103, the primary heat exchanger 6 and the secondary burner 9 are respectively installed on the top surface of the base, and a accommodating cavity with a top opening is provided inside the base 103. The circulating water pipeline 4 passes through the first through hole on the top of the accommodating cavity and is connected to the bottom of the primary heat exchanger 6, the gas pipeline 1 passes through the second through hole on the top of the accommodating cavity and is connected to the gas inlet of the secondary burner 9, and the air supply pipeline 8 passes through the third through hole on the top of the accommodating cavity and is connected to the air supply port of the secondary burner 9.

[0087] It can be understood that the centralized heating equipment of this embodiment includes a gas electric control system, a secondary burner 9, a cooling system and a base 103. The primary heat exchanger 6 and the secondary burner 9 are installed at intervals on the top of the base 103. A accommodating cavity with a side opening is provided inside the base 103, and a first through hole connecting to the accommodating cavity is provided on one side of the top of the base 103 corresponding to the bottom position of the primary heat exchanger 6, and a second through hole and a third through hole connecting to the accommodating cavity are provided on the other side of the bottom of the base 103 corresponding to the bottom position of the primary heat exchanger 6. At this time, after the first section of the water inlet pipe 41 of the circulating water pipe 4 enters the accommodating cavity with a side opening, it is connected to the bottom of the primary heat exchanger 6 through the first through hole, after the second gas branch 13 of the gas pipe 1 enters the accommodating cavity with a side opening, it is connected to the gas air inlet of the secondary burner 9 through the second through hole, and after the air supply main pipe of the air supply pipe 8 enters the accommodating cavity with a side opening, it is connected to the air inlet of the secondary burner 9 through the third through hole.

[0088] Furthermore, the first side of the accommodating chamber is provided with a first opening for the circulating water pipeline 4 to enter the accommodating chamber, the second side of the accommodating chamber is provided with a second opening for the gas pipeline 1 to enter the accommodating chamber, and the third side of the accommodating chamber is provided with a third opening for the air supply pipeline 8 to enter the accommodating chamber. In an optional embodiment, the first side is parallel to the second side, and the third side intersects the first side and the second side perpendicularly.

[0089] Furthermore, a partition plate is installed inside the accommodating cavity, and the partition plate divides the accommodating cavity into a waterway installation area and a gasway installation area. At this time, the waterway installation area corresponds to the top of the base 103 and the secondary heat exchanger 7 is installed, and the gasway installation area corresponds to the top of the base 103 and the secondary burner 9 is installed. It can be understood that the waterway and the gasway can be separated by setting a partition plate, which can improve the safety of gas transportation.

[0090] It can be understood that the central heating equipment of this embodiment, by providing a base 103 with a receiving cavity, is convenient for installing various pipelines and components and is also convenient for transportation.

[0091] In a preferred embodiment, reference Figure 6 and Figure 7 The energy-gathering compression disk 91 includes a compression disk body 912 and an energy-gathering pressure ring 911 installed on the compression disk body 912; the guide turbine disk 92 includes a turbine disk cavity 921 and a water cooling ring 922 arranged in the turbine disk cavity 921; the gas quantitative balancing disk 94 includes a quantitative balancing disk base 943, a quantitative balancing disk cavity 942 installed on the quantitative balancing disk base 943, and a quantitative balancing disk cover 941 installed on the quantitative balancing disk cavity 942, the quantitative balancing disk cover 941, the quantitative balancing disk cavity 942 and the quantitative balancing disk base 943 form a quantitative balancing chamber 97, and a gas balancing pipe 944 is installed in the quantitative balancing chamber 97; the energy-gathering compression disk 91, the guide turbine disk 92 and the quantitative balancing disk cover 941 form an annular chamber 96, and the guide diverter disk 93 is installed in the middle of the annular chamber 96.

[0092] In this embodiment, the lower side of the energy-gathering compression disk 91, the guide turbine disk 92 and the upper side of the quantitative balancing disk cover 941 form an annular chamber 96, and a guide diverter disk 93 is installed in the middle of the annular chamber 96, which can allow the flame to rotate, collide and compress in the annular chamber 96, and fully burn to obtain huge energy; the lower side of the quantitative balancing disk cover 941, the quantitative balancing disk cavity 942 and the upper side of the quantitative balancing disk base 943 form a quantitative balancing chamber 97, and a gas balancing pipe 944 is installed in the quantitative balancing chamber 97, which can allow the combustible gas to be balanced to produce a spray state; the lower side of the quantitative balancing disk base 943 is sleeved in the cooling water jacket 95, which can cool the quantitative balancing chamber 97 and realize the heat exchange of cooling water.

[0093] In summary, the centralized heating equipment of this embodiment, by providing the energy-gathering compression disk 91, the guide turbine disk 92, the guide diverter disk 93 and the gas quantitative balancing disk 94, can allow the flame to rotate, collide and compress in the annular chamber 96, so as to achieve full combustion, generate higher heat, less pollutants and be cleaner. In addition, by providing the water cooling ring 922, the top surface of the gas quantitative balancing disk 94 is cooled, and by providing the cooling water jacket 95, the combustible gas in the quantitative balancing chamber 97 is cooled, and the cooled combustible gas can be better recycled.

[0094] In a preferred embodiment, reference Figure 6 and Figure 7 The end surface of the compression disc body 912 is provided with a regular-shaped protrusion, and the reverse side of the compression disc body 912 is provided with a concave block according to the regular-shaped protrusion on the front side, and the periphery of the regular-shaped protrusion and the regular-shaped protrusion are provided with perforations.

[0095] In this embodiment, the end surface of the compression disc 912 is provided with a plurality of regular-shaped protrusions, each of which is provided with a plurality of rows of perforations, and each of which is provided with a row of perforations around it. At this time, during use, the compression disc 912 is used to compress the combustible gas in the annular chamber 96, with the bottom surface of the compression disc 912 as the boundary, to compress the energy and maintain the internal pressure. When the energy is excessive, it enters the concave block correspondingly provided on the lower side of the regular-shaped protrusion, releases the excessive energy from the perforations, and maintains a stable internal pressure.

[0096] In a preferred embodiment, the end surface of the compression disc body 912 and the end surface of the turbine disc cavity 921 are provided with condensed water outlet grooves corresponding in position.

[0097] In this embodiment, the end surface of the compression disc body 912 is flush with the end surface of the turbine disc cavity 921, and a plurality of condensed water outlet grooves are provided on the end surface of the compression disc body 912. Accordingly, the turbine disc cavity 921 is provided with the same number of condensed water outlet grooves corresponding to the position of the compression disc body 912, and the condensed water outlet grooves are fixedly installed with a condensed water loop 102. At this time, the condensed water generated during the working process can be discharged from the secondary burner 9 through the condensed water outlet grooves to avoid flowing into the annular chamber 96.

[0098] In a preferred embodiment, reference Figure 6 and Figure 7 The guide diverter plate 93 includes a first cover 931, a second cover 933 and a guide diverter plate 932 installed between the first cover 931 and the second cover 933, and guide diverter grooves with different directions are provided on both sides of the guide diverter plate 932.

[0099] In this embodiment, the guide diverter plate 93 includes a first cover 931, a guide diverter plate 932 and a second cover 933 which are connected in sequence, and a fixing thread is provided in the middle of the first cover 931 and the guide diverter plate 932, and a fixing nut is provided in the middle of the second cover 933. At this time, the upper end of the guide diverter plate 93 can be connected to the energy-gathering compression plate 91 through the fixing thread, and the lower end of the guide diverter plate 93 can be connected to the gas quantitative balancing plate 94 through the fixing nut.

[0100] In a preferred embodiment, reference Figure 6 and Figure 7 The guide diverter plate 93 also includes a fixing column 934; one end of the fixing column 934 is connected to the first cover 931 by a thread, and the other end of the fixing column 934 is connected to the compression plate body 912; a fixing nut is provided in the middle of the second cover 933, and the second cover 933 is connected to the quantitative balancing plate cover 941 through the fixing nut.

[0101] In this embodiment, the fixed column 934 includes a fixed block and a fixed screw, the upper end of the fixed screw is threadedly connected to the fixed block, and the lower end of the fixed screw is threadedly connected to the first cover 931 of the guide diverter plate 93 and the guide diverter plate 932. At this time, the compression disk body 912 can be fixedly connected to the guide diverter disk 93 through the fixed block and the fixed screw. Furthermore, the second cover 933 of the guide diverter disk 93 is threadedly connected to the center of the quantitative balancing disk cover 941, thereby realizing that the guide diverter disk 93 is installed in the middle of the annular chamber 96.

[0102] In a preferred embodiment, reference Figure 6 and Figure 7 The end surface of the quantitative balancing disk cover 941 is provided with an air outlet area, and the middle of the quantitative balancing disk cover 941 is provided with an air inlet, and the air inlet is connected to the air supply pipeline 8.

[0103] In this embodiment, the end surface of the quantitative balancing disk cover 941 is provided with a plurality of gas outlet areas corresponding to the inner side of the quantitative balancing disk cavity 942, and each gas outlet area includes a plurality of circular gas outlet holes. During use, the combustible gas in the quantitative balancing chamber 97 can enter the annular chamber 96 through the provided plurality of gas outlet areas.

[0104] Secondly, an air inlet is provided in the middle of the quantitative balancing plate cover 941, and the air inlet is connected to the air supply pipeline 8. Correspondingly, a through hole matching the size of the air supply pipeline 8 is provided in the middle of the quantitative balancing plate base 943 and the middle of the cooling water jacket 95. At this time, the air supply pipeline 8 can introduce the external air into the annular chamber 96 through the air inlet.

[0105] It can be understood that the present embodiment uses the guide diverter plate 93 to allow the air entering the annular chamber 96 through the air inlet to be fully mixed with the combustible gas in the annular chamber 96 under the action of the guide diverter groove, and to rupture due to the violent collision generated by the relative movement of the combustible gas and the air, thereby forming a high-temperature and high-pressure mixed gas. The mixed gas is in a free state and releases a large amount of energy, making the combustion more complete.

[0106] In a preferred embodiment, a gas inlet and a plurality of balancing outlets are provided at the bottom of the gas balancing pipe 944, and the gas inlet is connected to the gas pipeline 1; the quantitative balancing plate base 943 is provided with a through hole corresponding to the connection position between the gas balancing pipe 944 and the gas pipeline 1, and the size of the through hole is adapted to the outer diameter size of the gas pipeline 1.

[0107] In this embodiment, the gas balancing pipe 944 is detachably mounted on the quantitative balancing plate base 943, and a gas inlet is provided at the bottom of the gas balancing pipe 944, and the gas inlet is connected to the gas pipeline 1. Accordingly, through holes are provided at the positions corresponding to the gas inlet on the quantitative balancing plate base 943 and the bottom of the cooling water jacket 95, and at this time, the combustible gas can enter the gas balancing pipe 944 through the gas inlet through the gas pipeline 1.

[0108] Secondly, a plurality of balanced gas outlet holes are evenly arranged at the bottom of the gas equalizing pipe 944. During use, after the combustible gas enters the gas equalizing pipe 944 through the gas pipeline 1, it is first discharged from the evenly distributed balanced gas outlet holes arranged at the bottom of the gas equalizing pipe 944 to form a stable and uniform combustible gas, which then rushes downward to the quantitative equalizing plate base 943, then returns to the quantitative equalizing plate cover 941 from bottom to top, and finally is discharged into the annular chamber 96 from the multiple gas outlet areas on the quantitative equalizing plate cover 941.

[0109] The above are only preferred embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A central heating device, characterized in that: include: Gas electronic control system, secondary burner (9) and cooling system; The gas electronic control system comprises a gas pipeline (1), a gas control valve (2) and an ignition gun (3); the gas pipeline (1) is connected to the gas control valve (2); the ignition gun (3) comprises a gas mixing chamber (31), a spark plug (32) and a gun barrel (33); one end of the gas mixing chamber (31) is connected to the spark plug (32), and the other end is connected to the gun barrel (33); the gas mixing chamber (31) is provided with an air inlet (34) and a gas inlet (35); the gas inlet (35) is connected to the gas pipeline (1); The cooling system comprises a circulating water pipeline (4), a flue pipe (5), a primary heat exchanger (6), a secondary heat exchanger (7) and an air supply pipeline (8); the circulating water pipeline (4) is respectively connected to the primary heat exchanger (6), the secondary heat exchanger (7) and the secondary burner (9); the circulating water pipeline (4) comprises a water inlet pipeline (41) and a water outlet pipeline (42); cold water in the water inlet pipeline (41) passes through the secondary heat exchanger (7) and enters the secondary burner (9); The secondary burner (9) is cooled and then circulated to the primary heat exchanger (6), and hot water flows out through the water outlet pipeline (42); the flue pipe (5) is connected to the top of the primary heat exchanger (6) through the secondary heat exchanger (7), and the bottom of the primary heat exchanger (6) is connected to the secondary burner (9); the ignition gun (3) is arranged on one side of the bottom of the primary heat exchanger (6), and the air inlet (34) of the ignition gun (3) is connected to the air supply pipeline (8); The secondary burner (9) comprises an energy-gathering compression disk (91), a guide turbine disk (92), a guide flow divider disk (93), a gas quantification balancing disk (94) and a cooling water jacket (95); the energy-gathering compression disk (91) is fixedly mounted on the guide turbine disk (92), the guide turbine disk (92) is mounted on the gas quantification balancing disk (94), the gas quantification balancing disk (94) is mounted in the cooling water jacket (95), the guide flow divider disk (93) is mounted in the guide turbine disk (92), one end of the guide flow divider disk (93) is connected to the energy-gathering compression disk (91), and the other end of the guide flow divider disk (93) is connected to the gas quantification balancing disk (94); the guide flow divider disk (93) is in communication with the air supply pipeline (8), and the gas quantification balancing disk (94) is in communication with the gas pipeline (1).

2. The central heating device according to claim 1, characterized in that: The gas electric control system further comprises a flame observation port (101), a flame detector, a wind pressure sensor, a water pressure sensor and a temperature sensor; the flame observation port (101) is installed above the energy-gathering compression disk (91), and the flame detector is installed opposite to the flame observation port (101).

3. The central heating equipment according to claim 1, characterized in that: The gas pipeline (1) comprises a main gas pipeline (11), a first gas branch (12), a second gas branch (13), a first control valve and a second control valve; the main gas pipeline (11) is connected to the first gas branch (12) and the second gas branch (13), respectively; the first control valve is installed on the first gas branch (12), and the second control valve is installed on the second gas branch (13).

4. The central heating device according to claim 3, characterized in that: The first control valve and the second control valve are manual valves or solenoid valves.

5. The central heating equipment according to claim 1, characterized in that: The cooling system further comprises a condensed water loop (102), wherein the condensed water loop (102) is installed on the end surface of the guide turbine disk (92) of the secondary burner (9).

6. The central heating equipment according to claim 1, characterized in that: The primary heat exchanger (6) comprises a first isolating portion (61), a first heat exchange portion (62), a second isolating portion (63) and a gas cooling portion (64) which are arranged in sequence above the first isolating portion (61); the bottom of the first isolating portion (61) is connected to the secondary burner (9); a first heat exchange pipe (65) is arranged inside the first heat exchange portion (62), and the first heat exchange portion (62) is connected to the water outlet pipeline (42); and the gas cooling portion (64) is connected to the flue pipe (5).

7. The central heating device according to claim 6, characterized in that: The secondary heat exchanger (7) comprises a water storage portion (71) and a second heat exchange portion (72) arranged above the water storage portion (71); the bottom of the water storage portion (71) is connected to the front section of the water inlet pipeline (41); a second heat exchange pipe (73) is arranged inside the second heat exchange portion (72); the top of the second heat exchange portion (72) is connected to the rear section of the water inlet pipeline (41); and a flue through hole for connecting to the flue pipe (5) is provided on the side wall of the second heat exchange portion (72).

8. The central heating device according to claim 7, characterized in that: The water inlet pipeline (41) comprises a water inlet main pipe, a first water inlet branch pipe connected to the water inlet main pipe, and a second water inlet branch pipe; wherein the water inlet main pipe is connected to the water inlet of the cooling water jacket (95) via the secondary heat exchanger (7); the output end of the first water inlet branch pipe is connected to the gas cooling portion (64); and the output end of the second water inlet branch pipe is connected to the water inlet of the guide turbine disc (92); The water outlet pipeline (42) comprises a water outlet main pipe, a first water outlet branch pipe connected to the water outlet main pipe, and a second water outlet branch pipe; wherein the input end of the water outlet main pipe is connected to the water outlet of the cooling water jacket (95), and the output end of the water outlet main pipe discharges hot water after passing through the primary heat exchanger (6); the input end of the first water outlet branch pipe is connected to the flue pipe (5); and the second water outlet branch pipe is connected to the water outlet of the guide turbine disc (92).

9. The central heating equipment according to claim 1, characterized in that: The central heating device further comprises a base (103), the primary heat exchanger (6) and the secondary burner (9) are respectively mounted on the top surface of the base (103), a receiving chamber with a top opening is provided inside the base (103), the circulating water pipeline (4) passes through a first through hole at the top of the receiving chamber and is connected to the bottom of the primary heat exchanger (6), the gas pipeline (1) passes through a second through hole at the top of the receiving chamber and is connected to the gas inlet of the secondary burner (9), and the air supply pipeline (8) passes through a third through hole at the top of the receiving chamber and is connected to the air supply port of the secondary burner (9).

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