Fuel gas generator capable of operating safely

Abstract

The utility model provides a fuel gas generator capable of operating safely. The fuel gas generator comprises a fuel gas generator shell, the steam generator is arranged on one side of the outer surface of the fuel gas generator shell, and an electromagnetic valve is arranged on one side of the interior of the fuel gas generator shell. According to the fuel gas generator capable of running safely, heat exchange is guaranteed by adopting a fixed water level, the steam generator is a steam generator of a direct-current water pipe type structure, quantitative water supplementing is adopted according to the firepower, it is guaranteed that steam is generated rapidly and stably, steam can be output instantly after being opened, and no water level line exists; a Siemens combustion control module and a PLC (programmable logic controller) are used for cooperative control, various modes of field screen operation, remote operation and mobile phone terminal operation are achieved, multiple safety protections are adopted for the direct-current steam generator without the water level line, safe operation of the steam generator is guaranteed, the heat dissipation effect is improved by the heat exchange mode that water is contained in the pipe and smoke is contained outside the pipe, and the service life of the steam generator is prolonged. And the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the field of gas steam generators, in particular to a gas generator with safe operation. Background Art

[0002] Gas steam generators are widely used in kitchen appliances, such as gas steam cabinets, rice steaming carts, rice steamers and many other products. Steam generators can also be used in other fields, such as ironing machines.

[0003] At present, steam generators mainly use steam generators with heat exchange plate structures, such as the steam generator with publication number CN111288429A. This steam generator mainly uses a steam generator with heat exchange plate structure, adopts a fixed water level to ensure heat exchange, and the heat exchange method is poor. At the same time, the traditional heat exchange method is used, with flue gas inside the tube and water outside the tube, and the heat dissipation effect is poor. In addition, cleaning after operation is relatively complicated and cannot be automatically cleaned, and the practicality is poor.

[0004] Therefore, it is necessary to provide a safe-running gas generator to solve the above technical problems. Utility Model Content

[0005] The utility model provides a gas generator with safe operation, which solves the problem that the steam generator mainly adopts a heat exchange plate structure, adopts a fixed water level to ensure heat exchange, and the heat exchange method is poor. At the same time, the traditional heat exchange method is that flue gas is inside the tube and water is outside the tube, which has a poor heat dissipation effect. In addition, cleaning after operation is completed is complicated and cannot be automatically cleaned, which has poor practicality.

[0006] In order to solve the above technical problems, the utility model provides a safe-operating gas generator, comprising: a gas generator housing;

[0007] A steam generator, the steam generator being arranged on one side of the outer surface of the gas generator shell, and a solenoid valve being arranged on one side of the interior of the gas generator shell;

[0008] A fan filter is provided in the middle of the gas generator housing, a fan is provided on one side of the fan filter, a venturi device is provided on one side of the fan, and a premixing device is provided on one side of the venturi device;

[0009] A circulating water pump is arranged on the other side of the gas generator shell, an economizer is provided on one side of the circulating water pump, an intermediate water tank is provided on one side of the economizer, a plunger pump is provided on one side of the intermediate water tank, a steam generator furnace body is provided on one side of the plunger pump, a steam-water separator is provided on one side of the steam generator furnace body, and a steam outlet valve is provided on one side of the steam-water separator.

[0010] Preferably, a condensation water tank is provided on the other side of the circulating water pump, and a circulating water pump motor is provided on the surface of the circulating water pump.

[0011] Preferably, a fan motor is provided on the other side of the fan surface.

[0012] Preferably, a drain valve and a sewage valve are respectively provided on both sides of the surface of the intermediate water tank, and one side of the drain valve is connected to the steam-water separator.

[0013] Preferably, a cleaning valve is provided on one side of the sewage valve.

[0014] Preferably, a plunger pump motor is provided on the other side of the plunger pump surface.

[0015] Preferably, universal wheels are provided on all four sides of the bottom of the gas generator housing, and a sewage outlet D, a condensed circulating water outlet E, a water inlet F and a smoke exhaust outlet G are provided on the outer surface of the gas generator housing.

[0016] Compared with related technologies, the safe operation of the gas generator provided by the present invention has the following beneficial effects:

[0017] The utility model provides a gas generator with safe operation, which ensures heat exchange by adopting a fixed water level. The steam generator is a steam generator with a direct current water pipe structure. Quantitative water replenishment is adopted according to the fire power, which ensures rapid and stable steam output. The steam is turned on and output is output immediately without a water level line. The Siemens combustion control module + PLC is used for coordinated control, and multiple modes of on-site screen operation, remote operation, and mobile phone operation are provided. A number of safety protections are adopted to deal with the direct current steam generator without a water level line to ensure the safe operation of the steam generator. The heat exchange mode of water inside the pipe and flue gas outside the pipe improves the heat dissipation effect and improves the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a first embodiment of a safe-operating gas generator provided by the present invention;

[0019] Figure 2 A schematic structural diagram of a second embodiment of a safe-operating gas generator provided by the present invention;

[0020] Figure 3 for Figure 2 A schematic side view of the gas generator housing is shown.

[0021] Reference numerals in the figure: 1, solenoid valve, 2, fan filter, 3, fan motor, 4, fan, 5, venturi device, 6, premixing device, 7, condensate tank, 8, circulating water pump motor, 9, circulating water pump, 10, economizer, 11, intermediate water tank, 12, plunger pump motor, 13, plunger pump, 14, steam generator furnace, 15, steam-water separator, 16, steam trap, 17, cleaning valve, 18, drain valve, 19, steam outlet valve, 20, steam generator, 21, universal wheel, 22, gas generator housing;

[0022] A. Gas, B. Air, C. Pure water, D. Sewage outlet, E. Condensation circulating water outlet, F. Water inlet, G. Smoke exhaust outlet. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and implementation examples. Example 1

[0024] Please refer to Figure 1 ,in, Figure 1 This is a schematic structural diagram of a first embodiment of a safe-operating gas generator provided by the present invention. A safe-operating gas generator comprises: a gas generator housing 22;

[0025] The steam generator 20 is provided on one side of the outer surface of the gas generator housing 1 , and the solenoid valve 1 is provided on one side of the interior of the gas generator housing 22 ;

[0026] A fan filter 2 is provided in the middle of the gas generator housing 22. A fan 4 is provided on one side of the fan filter 2. A venturi device 5 is provided on one side of the fan 4. A premixing device 6 is provided on one side of the venturi device 5.

[0027] A circulating water pump 9 is provided on the other side of the gas generator housing 22. An economizer 10 is provided on one side of the circulating water pump 9. An intermediate water tank 11 is provided on one side of the economizer 10. A plunger pump 13 is provided on one side of the intermediate water tank 11. A steam generator furnace body 14 is provided on one side of the plunger pump 13. A steam-water separator 15 is provided on one side of the steam generator furnace body 14. A steam outlet valve 19 is provided on one side of the steam-water separator 15.

[0028] A condensation water tank 7 is provided on the other side of the circulating water pump 9 , and a circulating water pump motor 8 is provided on the surface of the circulating water pump 9 .

[0029] A fan motor 3 is provided on the other side of the surface of the fan 4 .

[0030] A drain valve 16 and a drain valve 18 are respectively provided on both sides of the surface of the intermediate water tank 11 , and one side of the drain valve 16 is connected to the steam-water separator 15 .

[0031] A cleaning valve 17 is provided on one side of the drain valve 18 .

[0032] A plunger pump motor 12 is provided on the other side of the surface of the plunger pump 13 .

[0033] The solenoid valve 1 and the venturi device 5 are communicated with each other, and the premixing device 6 and the steam generator furnace body 14 are communicated with each other.

[0034] The working principle of a safe gas generator provided by the present invention is as follows:

[0035] During operation, the system first uses direct current steam generation technology as its basis. The water pipe body is a continuous, integrated serpentine pipe with no water level line. It consists of a bare tube membrane wall and finned tubes. Preheated water is injected into the finned tubes at the tail end of the system by a high-pressure plunger pump 13. It first absorbs the tail flue gas temperature for convection heat exchange, and then enters the membrane wall at the front end of the furnace body to absorb the flame temperature for radiation heat exchange. After convection heat exchange and radiation heat exchange, the water undergoes a phase change in the finned tubes, from liquid to vapor, forming wet saturated steam. At this time, the steam state is a mixture of gas and liquid. Steam is produced from the middle of the furnace body and is separated into gas and liquid by the steam-water separator. The liquid is separated downward by the baffle, and the separated water is discharged to the middle water 11 through the diaphragm steam trap, waiting to re-enter the furnace body for the next combustion. The steam is discharged through the steam pipeline. The internal geometric water volume of this gas generator is less than 30L, and it does not belong to special pressure equipment. Within the limited water volume range of less than 30L, it ensures fast and stable steam production, which is immediate after opening and has no water level line.

[0036] The low-nitrogen burner of the gas generator adopts surface combustion. By controlling the frequency of the fan, the fan maintains a certain speed. When the air passes through the Venturi device 5, a negative pressure is formed in the Venturi. The gas is introduced by the negative pressure from the Venturi to maintain a constant air-fuel ratio so that the gas can be completely burned. Then it passes through the premixing device and is evenly dispersed on the combustion flat surface through the return plate and then spread and separated. Finally, it burns on the mesh surface. This process is a three-layer full premixing. Most burners on the market are pre-premixed, which is easy to mix unevenly and there are safety risks. In order to reduce nitrogen emissions, mixed exhaust gas intake is often used. However, since this gas generator adopts surface combustion, it accurately controls the flame length and flame temperature, effectively avoiding the formation of nitrogen oxides from nitrogen under high temperature conditions, achieving low nitrogen emissions, and does not require the re-participation of exhaust gas.

[0037] Multiple closed-loop controls are adopted, and the control is made as simple and efficient as possible through the connection between variables. Air, water, gas, and water replenishment use a high-pressure plunger pump 13 to supply water to the system. The characteristic of the plunger pump 13 is that the water replenishment frequency can be set to replenish water quantitatively, and the water replenishment amount is not affected by the pressure in the system, and linear water replenishment is performed. Due to the high pressure in the gas generator body, the use of an ordinary water pump will be affected by the pressure and cannot reach the predetermined value, while the high-pressure plunger pump 13 is not affected by the internal pressure. The frequency of the fan 4 is set to control the air volume, and the gas volume is calculated based on the air volume. The water intake volume is further calculated from the gas volume, thereby determining the frequency of water replenishment, and a flow meter is installed for timely feedback. These three variables form a closed-loop control and interact with each other. This system has an automatic cleaning function. When cleaning, you only need to add medicine to the middle water tank 11, and click the cleaning option on the operation screen to automatically turn it on and off.

[0038] Compared with related technologies, the safe operation of the gas generator provided by the present invention has the following beneficial effects:

[0039] The utility model provides a gas generator with safe operation, which ensures heat exchange by adopting a fixed water level. The steam generator is a steam generator with a direct current water pipe structure. Quantitative water replenishment is adopted according to the fire power, which ensures rapid and stable steam output. The steam is turned on and output is output immediately without a water level line. The Siemens combustion control module + PLC is used for coordinated control, and multiple modes of on-site screen operation, remote operation, and mobile phone operation are provided. A number of safety protections are adopted to deal with the direct current steam generator without a water level line to ensure the safe operation of the steam generator. The heat exchange mode of water inside the pipe and flue gas outside the pipe improves the heat dissipation effect and improves the practicality of the device. Example 2

[0040] Please refer to Figure 2 and Figure 3 Based on the safe operation of the gas generator provided in the first embodiment of this application, the second embodiment of this application provides another safe operation of the gas generator. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0041] Specifically, the difference of the safely operating gas generator provided in the second embodiment of the present application is that, in a safely operating gas generator, universal wheels 21 are provided on all four sides of the bottom of the gas generator shell 22, and the outer surface of the gas generator shell 22 is provided with a sewage outlet D, a condensed circulating water outlet E, a water inlet F and a smoke exhaust port G.

[0042] The working principle of a safe gas generator provided by the present invention is as follows:

[0043] During operation, the user first pushes the gas generator housing 22 , and the universal wheels at the bottom of the gas generator housing 22 move to drive the entire housing to move and transport.

[0044] Compared with related technologies, the safe operation of the gas generator provided by the present invention has the following beneficial effects:

[0045] The utility model provides a gas generator with safe operation. Universal wheels 21 are respectively installed around the bottom of the gas generator housing 22, so that operators can push the gas generator for transportation and movement, which is convenient for movement and improves the transportation effect of the device.

[0046] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, 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 safe-operating gas generator, characterized in that: include: Gas generator housing; A steam generator, the steam generator being arranged on one side of the outer surface of the gas generator shell, and a solenoid valve being arranged on one side of the interior of the gas generator shell; A fan filter is provided in the middle of the gas generator housing, a fan is provided on one side of the fan filter, a venturi device is provided on one side of the fan, and a premixing device is provided on one side of the venturi device; A circulating water pump is arranged on the other side of the gas generator shell, an economizer is provided on one side of the circulating water pump, an intermediate water tank is provided on one side of the economizer, a plunger pump is provided on one side of the intermediate water tank, a steam generator furnace body is provided on one side of the plunger pump, a steam-water separator is provided on one side of the steam generator furnace body, and a steam outlet valve is provided on one side of the steam-water separator.

2. A safe-operating gas generator according to claim 1, characterized in that: A condensation water tank is provided on the other side of the circulating water pump, and a circulating water pump motor is provided on the surface of the circulating water pump.

3. A safe-operation gas generator according to claim 1, characterized in that: A fan motor is provided on the other side of the fan surface.

4. A safe-operation gas generator according to claim 1, characterized in that: A drain valve and a sewage valve are respectively provided on both sides of the surface of the intermediate water tank, and one side of the drain valve is connected to the steam-water separator.

5. A safe-operation gas generator according to claim 4, characterized in that: A cleaning valve is provided on one side of the sewage valve.

6. A safe-operation gas generator according to claim 1, characterized in that: A plunger pump motor is provided on the other side of the plunger pump surface.

7. A safe-operation gas generator according to claim 1, characterized in that: Universal wheels are provided on all four sides of the bottom of the gas generator housing, and a sewage outlet D, a condensed circulating water outlet E, a water inlet F and a smoke exhaust outlet G are provided on the outer surface of the gas generator housing.

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