Submerged combustion gasifier

Abstract

The utility model relates to a submerged combustion gasifier. The submerged combustion type gasifier comprises a water tank module, a combustor module, a heat exchanger module, a fan air pipe module, a fuel gas pipe module, a cooling water circulation module, an auxiliary pipeline module, a chimney module and an alkali liquor tank module which are integrally pried. The water tank module, the combustor module, the heat exchanger module, the fan air pipe module, the fuel gas pipe module, the cooling water circulation module, the auxiliary pipeline module, the chimney module and the alkali liquor tank module are integrally pried, so that the whole transportation and the whole in-place can be completed after installation, detection and debugging in a manufacturing plant, the site construction workload is greatly reduced, and the construction efficiency is improved. The cost of installation personnel and consumable items is reduced, the project period is shortened, the installation precision of the submerged combustion type gasifier is improved, and potential safety hazards existing in on-site fire operation are greatly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of combustion gasifiers, in particular to an immersed combustion gasifier. BACKGROUND

[0002] In some engineering projects, a complete system for heating and gasifying input low-temperature liquefied hydrocarbons by taking water as an intermediate medium is usually formed. The complete system can meet the requirements of liquefied hydrocarbon delivery and gasification of low-temperature liquefied hydrocarbon receiving stations, peak shaving stations and the like of ports and wharfs.

[0003] At present, immersed combustion gasifiers are generally used in liquefied hydrocarbon receiving stations. The immersed combustion gasifier mainly heats the working medium water by fuel gas to improve the gasification efficiency of liquefied hydrocarbons. The existing immersed combustion gasifier usually adopts a split structure, and the main equipment pool for heat exchange is basically formed by concrete pouring, which has the advantages of being solid and stable, but it has the problems of long construction and installation period and over-heavy main equipment that cannot be integrated. In the current immersed combustion gasifier, accessory equipment (such as circulating water and alkali solution system) can be separately formed into a pry, but since the pipe needs to be connected with the interface on the pool, the control requirements for the size and installation deviation of the prefabricated connecting pipe are too high, so the delivery pipe of the fan supporting air duct connecting pipe, circulating water connecting pipe and the like is often sent to the site in scattered parts. In order to meet the needs of connection and installation, the prefabricated pipe assembly often needs to be cut and welded after on-site measurement of the size, which leads to difficulties in controlling the quality of the equipment, serious delays in the project period, and double risks of quality and safety. For the construction team, the on-site installation workload is huge, and the construction period is long; for the supplier, the on-site construction quality is uncontrollable; for the liquefied hydrocarbon receiving stations where some of the existing equipment has been put into use, cutting and welding involve flammable area fire operation, and the safety risk is uncontrollable. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides an immersed combustion gasifier, which can solve the technical problems of long construction period, uncontrollable construction quality and uncontrollable safety risk of cutting and welding of the fan supporting air duct connecting pipe, circulating water connecting pipe and the like of the current immersed combustion gasifier.

[0005] The embodiment of the present application provides an immersed combustion gasifier, which comprises a whole pry: a water tank module, a burner module, a heat exchanger module, a fan air pipe module, a fuel gas pipe module, a cooling water circulation module, an auxiliary pipe module, a chimney module and a lye tank module, and the burner module, the heat exchanger module, the fan air pipe module, the fuel gas pipe module, the cooling water circulation module, the auxiliary pipe module, the chimney module and the lye tank module are fixedly installed on the water tank module; wherein the fan air pipe module is used for providing combustion-supporting air to the burner module, the fuel gas pipe module is used for providing fuel gas to the burner module, the cooling water circulation module is used for providing cooling water to the burner module, the auxiliary pipe module is used for providing atomized spray water to the burner module, the burner module is used for generating flue gas, the heat exchanger module is used for heat exchange with the flue gas to warm up liquefied natural gas in the heat exchanger module to form natural gas, the chimney module is used for discharging the flue gas after heat exchange with the heat exchanger module, and the lye tank module is used for adjusting the pH value of the water tank module.

[0006] In some embodiments, the water tank module comprises a water tank and a cover plate, and the cover plate is arranged on the top of the water tank; wherein the burner module and the heat exchanger module are fixedly connected to the bottom of the water tank, the fan air pipe module, the fuel gas pipe module, the cooling water circulation module and the auxiliary pipe module are fixedly connected to the outer side wall of the water tank, and the chimney module and the lye tank module are fixedly connected to the upper surface of the cover plate.

[0007] In some embodiments, the water tank module has a first side and a second side in a first direction, and has a third side and a fourth side in a second direction; wherein the fan air pipe module is located on the first side, and the fuel gas pipe module, the cooling water circulation module and the auxiliary pipe module are located on the third side.

[0008] In some embodiments, the burner module and the heat exchanger module are arranged in sequence along the direction from the first side to the second side.

[0009] In some embodiments, the fuel gas pipe module, the cooling water circulation module and the auxiliary pipe module are arranged in sequence along the direction from the first side to the second side.

[0010] In some embodiments, the chimney module and the lye tank module are arranged in sequence along the direction from the third side to the fourth side, and the chimney module and the lye tank module are arranged close to the second side.

[0011] In some embodiments, the burner module comprises a combustion chamber, a first volute assembly, a second volute assembly, a first fuel gas assembly and a second fuel gas assembly, the first fuel gas assembly is communicated above the combustion chamber, the second fuel gas assembly is communicated below the combustion chamber, the first volute assembly is sleeved outside the first fuel gas assembly, and the second volute assembly is sleeved outside the second fuel gas assembly.

[0012] In some embodiments, the heat exchanger module comprises: a flue gas distribution pipe, the flue gas distribution pipe is provided with a flue gas inlet and a plurality of flue gas exhaust holes, the flue gas inlet is communicated with the second volute assembly of the burner module, and the plurality of flue gas exhaust holes are arranged at the top of the flue gas distribution pipe; and a heat exchange coil pipe arranged above the flue gas distribution pipe, the heat exchange coil pipe is provided with a liquefied natural gas inlet and a natural gas outlet.

[0013] In some embodiments, the flue gas distribution pipe comprises a main pipe and at least one branch pipe, each branch pipe is communicated with the main pipe, the flue gas inlet is arranged on the main pipe, the plurality of flue gas exhaust holes are arranged at the top of the branch pipe, and the heat exchange coil pipe is arranged above the branch pipe.

[0014] In some embodiments, the fan duct module comprises a fan, a motor, a coupling box, an inlet silencer and an air duct, the motor drives the fan to operate through the coupling box, the inlet silencer is arranged at the air inlet of the fan, the air duct is communicated with the air outlet of the fan, and the air duct comprises a first air duct and a second air duct, the first air duct is communicated to the first volute assembly, and the second air duct is communicated to the second volute assembly.

[0015] In some embodiments, the fuel gas pipe module comprises: a fuel gas pipe; the fuel gas pipe comprises a first fuel gas pipe, a second fuel gas pipe and an ignition fuel gas pipe, the first fuel gas pipe is communicated to the first gas assembly, the second fuel gas pipe is communicated to the second gas assembly, and the third fuel gas pipe is communicated to the ignition gun in the first gas assembly.

[0016] In some embodiments, the cooling water circulation module comprises: a water circulation pump and a water circulation pipe; wherein the water circulation pipe comprises: a water circulation suction pipe, a water circulation outlet pipe and a return pipe, the water circulation outlet pipe comprises a first water circulation outlet pipe and a second water circulation outlet pipe, and the return pipe comprises a first return pipe and a second return pipe; the water circulation suction pipe is communicated between the water tank and the water inlet of the water circulation pump; the first water circulation outlet pipe is communicated between the water outlet of the water circulation pump and the outer wall of the combustion chamber, and the first return pipe is communicated between the outer wall of the combustion chamber and the water tank; the second water circulation outlet pipe is communicated between the water outlet of the water circulation pump and the outer wall of the second gas assembly, and the second return pipe is communicated between the outer wall of the second gas assembly and the water tank.

[0017] In some embodiments, the auxiliary pipe module comprises: an auxiliary water pump and an auxiliary pipe; the auxiliary pipe comprises: an auxiliary suction pipe and an auxiliary outlet pipe, the auxiliary outlet pipe comprises a first auxiliary outlet pipe and a second auxiliary outlet pipe; the auxiliary suction pipe is communicated between the water tank and the water inlet of the auxiliary water pump; the first auxiliary outlet pipe is communicated between the water outlet of the auxiliary water pump and the atomizing water nozzle of the first gas assembly; and the second auxiliary outlet pipe is communicated between the water outlet of the auxiliary water pump and the atomizing water nozzle of the second gas assembly.

[0018] In some embodiments, the submerged combustion gasifier further comprises a working water module, the working water module is integrally formed with the water tank module, and the working water module is configured to provide working water to the water tank module.

[0019] The submerged combustion gasifier provided by the embodiments of the present application can be integrally transported, integrally positioned, greatly reduce the workload of on-site construction, reduce the cost of installation personnel and consumables, shorten the project cycle, improve the installation precision of the submerged combustion gasifier, and greatly reduce the safety hazards existing in the on-site fire operation after the installation, detection and debugging are completed in the manufacturing plant. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 The arrangement schematic diagram of each module of the submerged combustion gasifier of the embodiments of the present application;

[0022] Figure 2 The top view of the submerged combustion gasifier of the embodiments of the present application;

[0023] Figure 3 The front view of the submerged combustion gasifier of the embodiments of the present application;

[0024] Figure 4 The A-A sectional view of Figure 2

[0025] Figure 5 The structural schematic diagram of the burner module of the embodiments of the present application;

[0026] Figure 6 The front view of the heat exchanger module of the embodiments of the present application;

[0027] Figure 7 The structural schematic diagram of the heat exchanger module of the embodiments of the present application;

[0028] Figure 8 The structural schematic diagram of the fan air pipe module of the embodiments of the present application;

[0029] Figure 9 The structural schematic diagram of the alkali tank module of the embodiments of the present application.

[0030] ​The symbols in the figure are as follows:

[0031] 1, sink module; 2, burner module; 3, heat exchanger module; 4, fan duct module; 5, fuel gas pipe module; 6, cooling water circulation module; 7, auxiliary pipe module; 8, chimney module; 9, lye tank module;

[0032] 101, sink; 102, cover plate; 110, first side; 120, second side; 130, third side; 140, fourth side;

[0033] 201, combustion chamber; 202, first volute assembly; 203, second volute assembly; 204, first gas assembly; 205, second gas assembly;

[0034] 301, flue gas distribution pipe; 302, heat exchange coil; 3011, flue gas inlet; 3012, flue gas outlet; 3013, main pipe; 3014, branch pipe; 3021, liquefied natural gas inlet; 3022, natural gas outlet;

[0035] 401, air duct; 402, fan; 403, motor; 404, coupling box; 405, inlet silencer;

[0036] 501, fuel gas pipe;

[0037] 601, water circulation pipe; 6011, water circulation suction pipe; 6012, water circulation outlet pipe;

[0038] 701, auxiliary pipe; 7011, auxiliary suction pipe; 7012, auxiliary outlet pipe;

[0039] 901, lye tank; 9011, lye inlet; 9012, lye outlet; 9013, lye exhaust outlet; 9014, water inlet; 9015, liquid level meter interface. DETAILED DESCRIPTION

[0040] The preferred embodiments of the present application are described in detail below with reference to the accompanying drawings, to completely introduce the technical content of the present application to those skilled in the art, to prove by example that the present application can be implemented, to make the technical content disclosed by the present application more clear, and to make those skilled in the art more easily understand how to implement the present application. However, the present application can be embodied in many different forms of embodiments, and the protection scope of the present application is not limited to the embodiments mentioned in the text. The description of the following embodiments is not intended to limit the scope of the present application.

[0041] The directions mentioned in the utility model, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side face" and the like, are only directions in the drawings, and the directions used in the present utility model are used to explain and illustrate the utility model, and are not used to limit the protection scope of the utility model.

[0042] In the drawings, the same components are indicated by the same reference numerals, and components similar in structure or function are indicated by similar reference numerals. In addition, in order to facilitate understanding and description, the size and thickness of each component shown in the drawings are arbitrarily shown, and the utility model does not limit the size and thickness of each component.

[0043] Please refer to Figure 1 The present embodiment provides a submerged combustion gasifier. The submerged combustion gasifier comprises a whole pry: a water tank module 1, a burner module 2, a heat exchanger module 3, a fan air pipe module 4, a fuel gas pipe module 5, a cooling water circulation module 6, an auxiliary pipeline module 7, a chimney module 8 and a lye tank module 9. The burner module 2, the heat exchanger module 3, the fan air pipe module 4, the fuel gas pipe module 5, the cooling water circulation module 6, the auxiliary pipeline module 7, the chimney module 8 and the lye tank module 9 are fixedly installed on the water tank module 1. By forming a whole pry of the water tank module 1, the burner module 2, the heat exchanger module 3, the fan air pipe module 4, the fuel gas pipe module 5, the cooling water circulation module 6, the auxiliary pipeline module 7, the chimney module 8 and the lye tank module 9, the whole can be transported after the installation, detection and debugging are completed in the factory, the whole is in place, the on-site construction workload is greatly reduced, the installation personnel cost and the consumable cost are reduced, the project cycle is shortened, the installation precision of the submerged combustion gasifier is improved, and the safety hidden danger existing in the on-site fire operation is greatly reduced.

[0044] Please refer to Figure 2 The water tank module 1 comprises a water tank 101 and a cover plate 102. The cover plate 102 is arranged on the top of the water tank 101. The water tank 101 is a steel water tank. Specifically, the water tank 101 is composed of a carbon steel painted frame and a stainless steel plate body, so as to fully ensure the corrosion resistance of the water tank in an acidic, alkaline, neutral and salt solution environment, and improve the service life of the water tank 101. In other embodiments, the water tank module 1 further comprises an overflow connecting pipe, a sewage connecting pipe, a liquid level meter installation connecting pipe, an electric heater installation connecting pipe and the like.

[0045] Please refer to Figure 1 and Figure 2 The water tank module 1 has a first side 110 and a second side 120 in a first direction X, and has a third side 130 and a fourth side 140 in a second direction Y.

[0046] Please refer to Figure 2 , Figure 3 andFigure 4 The burner module 2 is used to generate flue gas. The burner module 2 is fixedly connected to the bottom of the water tank 101. In this embodiment, the bottom of the burner module 2 is fixedly connected to the bottom of the water tank 101, and the top of the burner module 2 extends out of the water tank 101 through the cover plate 102. The burner module 2 is arranged close to the first side 110 of the water tank module 1.

[0047] Please refer to Figure 5 The burner module 2 comprises a combustion chamber 201, a first volute assembly 202, a second volute assembly 203, a first gas assembly 204, and a second gas assembly 205. The first gas assembly 204 is connected to the top of the combustion chamber 201, the second gas assembly 205 is connected to the bottom of the combustion chamber 201, the first volute assembly 202 is sleeved on the outer side of the first gas assembly 204, and the second volute assembly 203 is sleeved on the outer side of the second gas assembly 205. Specifically, the combustion chamber 201, the second volute assembly 203, and the second gas assembly 205 are located in the water tank 101, and the first volute assembly 202 and the first gas assembly 204 extend out of the water tank 101. It is worth noting that, as an important device for improving the gasification efficiency of liquefied natural gas, direct heat exchange between the high-temperature flue gas generated by the burner module 2 and the working fluid water in the water tank 101 can achieve the effect of improving the temperature of the water tank. Therefore, in this embodiment, the flue gas outlet of the burner module 2 is placed in the working fluid water in the water tank 101, so that the heat utilization rate of the flue gas is maximized.

[0048] Please refer to Figure 2 , Figure 3 and Figure 4 The heat exchanger module 3 is used for heat exchange with the flue gas generated by the burner module 2 to warm up and gasify the liquefied natural gas in the heat exchanger module 3 to form natural gas. The heat exchanger module 3 is fixedly connected to the bottom of the water tank 101. The burner module 2 and the heat exchanger module 3 are arranged in sequence along the direction from the first side 110 to the second side 120. In other words, the heat exchanger module 3 is located on the side of the burner module 2 close to the second side 120.

[0049] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 7 The heat exchanger module 3 comprises a flue gas distribution pipe 301 and a heat exchange coil 302. The flue gas distribution pipe 301 is provided with a flue gas inlet 3011 and a plurality of flue gas discharge holes 3012. The flue gas inlet 3011 is connected to the second volute assembly 203 of the burner module 2, and the plurality of flue gas discharge holes 3012 are arranged on the top of the flue gas distribution pipe 301.

[0050] Please refer to Figure 2 , Figure 4 , Figure 6 and Figure 7The flue gas distribution pipe 301 comprises a main pipe 3013 and at least one branch pipe 3014. Each branch pipe 3014 is communicated with the main pipe 3013, the flue gas inlet 3011 is arranged on the main pipe 3013, and a plurality of flue gas outlets 3012 are arranged at the top of the branch pipe 3014.

[0051] Please refer to Figure 2 、 Figure 4 、 Figure 6 and Figure 7 , the heat exchange coil 302 is arranged above the flue gas distribution pipe 301, specifically, the heat exchange coil 302 is arranged above the branch pipe 3014. The heat exchange coil 302 is provided with a liquefied natural gas inlet 3021 and a natural gas outlet 3022. Specifically, the high-temperature flue gas generated by the burner module 2 enters the flue gas distribution pipe 301 through the flue gas inlet 3011, and then is discharged upward from the flue gas outlet 3012. The liquefied natural gas enters the heat exchange coil 302 from the liquefied natural gas inlet 3021, and the high-temperature flue gas directly exchanges heat by bubbling to release heat to the working fluid water in the water tank 101. The working fluid water in the water tank 101 heats the liquefied natural gas through the heat exchange coil 302 to vaporize the liquefied natural gas into natural gas, which is output to the user pipeline from the natural gas outlet 3022.

[0052] In this embodiment, the heat exchange coil 302 is arranged above the flue gas distribution pipe 301, which can reduce the space for laying out the complete equipment, and thus the submerged combustion gasifier of this embodiment can centrally arrange each subsystem to maximize space utilization while meeting performance indicators.

[0053] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 8 , the fan air pipe module 4 is used to provide combustion-supporting air to the burner module 2. The fan air pipe module 4 is fixedly connected to the outer side wall of the water tank 101. The fan air pipe module 4 is located at the first side 110, that is, the fan air pipe module 4 is fixedly connected to the outer side wall of the first side 110 of the water tank 101.

[0054] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 8 , the fan air pipe module 4 comprises a fan 402, a motor 403, a coupling box 404, an inlet silencer 405, and an air duct 401. The motor 403 drives the fan 402 to operate through the coupling box 404. The inlet silencer 405 is arranged at the air inlet of the fan 402, and the air duct 401 is communicated with the air outlet of the fan.

[0055] Please refer to Figure 1 and Figure 2The air duct 401 includes a first air duct 4011 and a second air duct 4012, the first air duct 4011 is communicated to the first volute assembly 202, and the second air duct 4012 is communicated to the second volute assembly 203, so that the mixing of fuel gas and combustion air can be enhanced, and the uniform distribution of temperature is ensured.

[0056] In some embodiments, the fan surface can be arranged with sound-absorbing cotton, and a sound-absorbing cover can be arranged outside the motor to ensure that the noise of the fan is lower than 85 dB (A) @ 1 m.

[0057] In some embodiments, the bracket of the fan duct module 4 can be integrally formed with the carbon steel painted frame of the water tank 101, so that the vibration of the fan can be reduced.

[0058] Please refer to Figure 1 , Figure 2 , Figure 3 The fuel gas pipe module 5 is used to provide fuel gas to the burner module 2. The fuel gas pipe module 5 is fixedly connected to the outer side wall of the water tank 101. The fuel gas pipe module 5 is located on the third side 130, i.e. the fuel gas pipe module 5 is fixedly connected to the outer side wall of the third side 130 of the water tank 101.

[0059] Please refer to Figure 1 , Figure 2 , Figure 3 The fuel gas pipe module 5 includes a fuel gas pipe 501, a compressed air pipe, and a rain shelter. The fuel gas pipe 501 includes a first fuel gas pipe, a second fuel gas pipe, and an ignition fuel gas pipe, the first fuel gas pipe is communicated to the first gas assembly, the second fuel gas pipe is communicated to the second gas assembly, and the ignition fuel gas pipe is communicated to the ignition gun in the first gas assembly 204, so that the mixing of fuel gas and air can be enhanced, and the uniform distribution of temperature is ensured.

[0060] Please refer to Figure 1 , Figure 2 , Figure 3 The cooling water circulation module 6 is used to provide cooling water to the burner module 2. The cooling water circulation module 6 is fixedly connected to the outer side wall of the water tank 101. The cooling water circulation module 6 is located on the third side 130, i.e. the cooling water circulation module 6 is fixedly connected to the outer side wall of the third side 130 of the water tank 101. The cooling water circulation module 6 is located on the side of the fuel gas pipe module 5 close to the second side 120.

[0061] Please refer to Figure 1 , Figure 2 , Figure 3The cooling water circulation module 6 comprises a water circulation pump, a water circulation pipeline 601, a filter, a pH meter and a pressure transmitter. The water circulation pipeline 601 comprises a water circulation suction pipe 6011, a water circulation outlet pipe 6012 and a backwater pipe. The water circulation outlet pipe 6012 comprises a first water circulation outlet pipe and a second water circulation outlet pipe, and the backwater pipe comprises a first backwater pipe and a second backwater pipe. The water circulation suction pipe 6011 is connected between the water tank 101 and the water inlet of the water circulation pump; the first water circulation outlet pipe is connected between the water outlet of the water circulation pump and the outer wall of the combustion chamber 201, and the first backwater pipe is connected between the outer wall of the combustion chamber and the water tank 101; the second water circulation outlet pipe is connected between the water outlet of the water circulation pump and the outer wall of the second gas assembly 205, and the second backwater pipe is connected between the outer wall of the second gas assembly 205 and the water tank. In this way, the cooling effect of the cooling water circulation module 6 on the burner module 2 can be improved.

[0062] Please refer to Figure 1 , Figure 2 , Figure 3 The auxiliary pipeline module 7 is used to provide atomized spray water to the burner module 2. The auxiliary pipeline module 7 is fixedly connected to the outer side wall of the water tank 101. The auxiliary pipeline module 7 is located on the third side 130, i.e. the third side 130 of the outer side wall of the water tank 101 to which the auxiliary pipeline module 7 is fixedly connected. The auxiliary pipeline module 7 is located on the side of the cooling water circulation module 6 close to the second side 120, i.e. the fuel gas pipeline module 5, the cooling water circulation module 6 and the auxiliary pipeline module 7 are arranged in sequence along the direction from the first side 110 to the second side 120.

[0063] Please refer to Figure 1 , Figure 2 , Figure 3 The auxiliary pipeline module 7 comprises an auxiliary water pump, an auxiliary pipeline 701, a flow meter, a pneumatic regulating valve and a pressure gauge. The auxiliary pipeline 701 comprises an auxiliary suction pipe 7011 and an auxiliary outlet pipe 7012. The auxiliary outlet pipe 7012 comprises a first auxiliary outlet pipe and a second auxiliary outlet pipe; the auxiliary suction pipe 7011 is connected between the water tank 101 and the water inlet of the auxiliary water pump; the first auxiliary outlet pipe is connected between the water outlet of the auxiliary water pump and the atomized water nozzle of the first gas assembly 204; and the second auxiliary outlet pipe is connected between the water outlet of the auxiliary water pump and the atomized water nozzle of the second gas assembly 205. In this way, the combustion temperature can be reduced from the top and bottom of the burner module 2 at the same time, thereby greatly reducing the emission of thermal NOx.

[0064] Please refer to Figure 1 , Figure 2 , Figure 3The chimney module 8 is used to discharge the flue gas after heat exchange with the heat exchanger module 3. The chimney module 8 is fixedly connected to the upper surface of the cover plate 102. The chimney module 8 is arranged close to the second side 120. Specifically, the chimney module 8 comprises a chimney straight pipe section, a flue gas temperature thermocouple and a lightning protection device; the chimney straight pipe section is provided with a chimney air inlet and a chimney air outlet, the chimney air inlet is arranged at the bottom of the chimney straight pipe section and is communicated with the water tank module, and the chimney air outlet is arranged at the top of the chimney straight pipe section; the flue gas temperature thermocouple is arranged in the chimney straight pipe section, and the flue gas temperature thermocouple is arranged close to the chimney air outlet; and the lightning protection device is arranged on the outer wall of the chimney straight pipe section. Thus, the temperature of the flue gas can be measured by the flue gas temperature thermocouple, and the temperature change of the flue gas can be monitored in real time; and the chimney module 8 is protected from lightning damage by the lightning protection device.

[0065] In some embodiments, a manhole is further arranged at the chimney air outlet, and an artificial maintenance hole is further arranged at the bottom of the chimney straight pipe section. It is worth noting that, in order to fix the chimney straight pipe section, the water tank module 1 needs to be partially extended upward.

[0066] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 9 , the lye tank module 9 is used to adjust the acidity and alkalinity of the water tank module 1. Specifically, the lye tank module 9 is used to adjust the acidity and alkalinity of the working fluid water in the water tank 101 of the water tank module 1. In this embodiment, the lye tank module 9 controls the use of lye to control the pH value of the working fluid water in the water tank 101 to be within the range of 6-9. The lye tank module 9 is fixedly connected to the upper surface of the cover plate 102. The lye tank module 9 is arranged close to the second side 120. The lye tank module 9 is arranged on one side of the chimney module 8 close to the fourth side 140, i.e. the chimney module 8 and the lye tank module 9 are arranged in sequence along the direction from the third side 130 to the fourth side 140.

[0067] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 9 , the lye tank module 9 comprises a lye tank, a mounting steel frame, a guardrail and a stairway. The lye tank 901 is provided with a lye inlet 9011, a lye outlet 9012, a lye exhaust port 9013, a water inlet 9014 and a liquid level meter interface 9015. The lye inlet 9011 is an interface for introducing lye into the lye tank 901. The lye outlet 9012 is an interface for taking out lye from the lye tank 901. The lye exhaust port 9013 is an interface for emptying the residual lye in the lye tank 901. The water inlet 9014 is an interface for supplementing water in the lye tank 901. The liquid level meter interface 9015 is an interface for connecting a liquid level meter. Through the interface, a liquid level meter can be installed to monitor the liquid level in the lye tank 901, so as to timely understand the storage and consumption of lye.

[0068] In some embodiments, the submerged combustion gasifier further comprises a working water module (not shown in the figure). The working water module is integrally formed with the water tank module 1, and is used to provide working water to the water tank module 1.

[0069] In the above embodiments, the description of each embodiment is focused on, and the part not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0070] The above describes in detail the submerged combustion gasifier provided by the embodiments of the present application. The principles and implementation manners of the present application are described by applying specific examples. The above embodiment descriptions are only used to help understand the technical solutions and core ideas of the present application. Those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An immersed combustion gasifier, characterized by, The whole is pry including: sink module (1), burner module (2), heat exchanger module (3), fan (402) duct module (4), fuel gas pipe module (5), cooling water circulation module (6), auxiliary pipeline module (7), chimney module (8) and lye tank module (9), the burner module (2), the heat exchanger module (3), the fan (402) duct module (4), the fuel gas pipe module (5), the cooling water circulation module (6), the auxiliary pipeline module (7), the chimney module (8) and the lye tank module (9) are fixedly installed on the sink module (1); Wherein, the fan (402) duct module (4) is used to provide combustion air to the burner module (2), the fuel gas pipe module (5) is used to provide fuel gas to the burner module (2), the cooling water circulation module (6) is used to provide cooling water to the burner module (2), the auxiliary pipeline module (7) is used to provide atomizing spray water to the burner module (2), the burner module (2) is used to generate flue gas, the heat exchanger module (3) is used to exchange heat with the flue gas to warm up the liquefied natural gas in the heat exchanger module (3) to gasify and form natural gas, the chimney module (8) is used to discharge the flue gas after heat exchange with the heat exchanger module (3), and the lye tank module (9) is used to adjust the pH value of the sink module (1).

2. The submerged combustion gasifier of claim 1 wherein, The sink module (1) comprises a sink (101) and a cover plate (102), and the cover plate (102) is arranged on the top of the sink (101). Wherein, the burner module (2) and the heat exchanger module (3) are fixedly connected to the bottom of the sink (101), the fan (402) duct module (4), the fuel gas pipe module (5), the cooling water circulation module (6) and the auxiliary pipeline module (7) are fixedly connected to the outer side wall of the sink (101), and the chimney module (8) and the lye tank module (9) are fixedly connected to the upper surface of the cover plate (102).

3. The submerged combustion gasifier of claim 2 wherein, The sink module (1) has a first side (110) and a second side (120) in a first direction, and has a third side (130) and a fourth side (140) in a second direction. Wherein, the fan (402) duct module (4) is located at the first side (110), and the fuel gas pipe module (5), the cooling water circulation module (6) and the auxiliary pipeline module (7) are located at the third side (130).

4. The submerged combustion gasifier of claim 3 wherein, The burner module (2) and the heat exchanger module (3) are arranged in sequence along the direction from the first side (110) to the second side (120).

5. The submerged combustion gasifier of claim 3 wherein, The fuel gas pipe module (5), the cooling water circulation module (6) and the auxiliary pipeline module (7) are arranged in sequence along the direction from the first side (110) to the second side (120).

6. The submerged combustion gasifier of claim 3 wherein, The chimney module (8) and the lye tank module (9) are arranged in sequence along the direction from the third side (130) to the fourth side (140), and the chimney module (8) and the lye tank module (9) are arranged close to the second side (120).

7. The submerged combustion gasifier of claim 2 wherein, The burner module (2) comprises a combustion chamber (201), a first volute assembly (202), a second volute assembly (203), a first gas assembly (204) and a second gas assembly (205), the first gas assembly (204) is communicated above the combustion chamber (201), the second gas assembly (205) is communicated below the combustion chamber (201), the first volute assembly (202) is sleeved outside the first gas assembly (204), and the second volute assembly (203) is sleeved outside the second gas assembly (205).

8. The submerged combustion gasifier of claim 7 wherein, The heat exchanger module (3) comprises: A flue gas distribution pipe (301) is provided with a flue gas inlet (3011) and a plurality of flue gas discharge holes (3012), the flue gas inlet (3011) is communicated with the second volute assembly (203) of the burner module (2), and a plurality of flue gas discharge holes (3012) are arranged at the top of the flue gas distribution pipe (301); and A heat exchange coil (302) is arranged above the flue gas distribution pipe (301), the heat exchange coil (302) is provided with a liquefied natural gas inlet (3021) and a natural gas outlet (3022).

9. The submerged combustion gasifier of claim 8 wherein, The flue gas distribution pipe (301) comprises a main pipe (3013) and at least one branch pipe (3014), each branch pipe (3014) is communicated with the main pipe (3013), the flue gas inlet (3011) is arranged on the main pipe (3013), a plurality of flue gas discharge holes (3012) are arranged at the top of the branch pipe (3014), and the heat exchange coil (302) is arranged above the branch pipe (3014).

10. The submerged combustion gasifier of claim 7 wherein, The fan (402) pipe module (4) comprises a fan (402), a motor (403), a coupling box (404), an inlet silencer (405), and an air duct (401); The motor (403) drives the fan (402) to operate through the coupling box (404), the inlet silencer (405) is arranged at the air inlet of the fan (402), the air duct (401) is communicated with the air outlet of the fan (402), and the air duct (401) comprises a first air duct and a second air duct, the first air duct is communicated to the first volute assembly (202), and the second air duct is communicated to the second volute assembly (203).

11. The submerged combustion gasifier of claim 7 wherein, The fuel gas pipe module (5) comprises a fuel gas pipe (501); The fuel gas pipe (501) comprises a first fuel gas pipe, a second fuel gas pipe and an ignition fuel gas pipe, the first fuel gas pipe is communicated to the first gas assembly (204), the second fuel gas pipe is communicated to the second gas assembly (205), and the ignition fuel gas pipe is communicated to the ignition gun in the first gas assembly (204).

12. The submerged combustion gasifier of claim 7 wherein, The cooling water circulation module (6) comprises a water circulation pump and a water circulation pipeline (601); The water circulation pipeline (601) comprises a water circulation water suction pipe (6011) and a water circulation water outlet pipe (6012) and a backwater pipe, the water circulation water outlet pipe (6012) comprises a first water circulation water outlet pipe and a second water circulation water outlet pipe, and the backwater pipe comprises a first backwater pipe and a second backwater pipe; The water circulation water suction pipe (6011) is communicated between the water tank (101) and the water inlet of the water circulation pump; The first water circulation water outlet pipe is communicated between the water outlet of the water circulation pump and the outer wall of the combustion chamber (201), and the first backwater pipe is communicated between the outer wall of the combustion chamber (201) and the water tank (101); The second water circulation water outlet pipe is communicated between the water outlet of the water circulation pump and the outer wall of the second gas assembly (205), and the second backwater pipe is communicated between the outer wall of the second gas assembly (205) and the water tank (101).

13. The submerged combustion gasifier of claim 7 wherein, The auxiliary pipeline module (7) comprises an auxiliary water pump and an auxiliary pipeline (701); The auxiliary pipeline (701) comprises an auxiliary water suction pipe (7011) and an auxiliary water outlet pipe (7012), and the auxiliary water outlet pipe (7012) comprises a first auxiliary water outlet pipe and a second auxiliary water outlet pipe; The auxiliary water suction pipe (7011) is communicated between the water tank (101) and the water inlet of the auxiliary water pump; The first auxiliary water outlet pipe is communicated between the water outlet of the auxiliary water pump and the atomizing water nozzle of the first gas assembly (204); The second auxiliary water outlet pipe is communicated between the water outlet of the auxiliary water pump and the atomizing water nozzle of the second gas assembly (205).

14. The submerged combustion gasifier of claim 1 wherein, Further comprising a working medium water module, the working medium water module is integrally formed with the water tank module (1), and the working medium water module is used for providing working medium water for the water tank module (1).

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