阅读说明：本技术 一种水控式燃气发动机及其自供应环保多级水供应系统 (Water control type gas engine and self-supply environment-friendly multistage water supply system thereof ) 是由 梁正兴 俞善东 苏文戟 樊勇 左鑫 陈亘 刘恩博 谢坤孝 于 2021-07-23 设计创作，主要内容包括：本发明公开了一种水控式燃气发动机及其自供应环保多级水供应系统,包括热水系统、冷水系统、温水系统、发电系统、蓄电池及电路控制系统、水源、水泵、过滤系统；所述水泵抽取所述水源经所述过滤系统连接有所述热水系统、温水系统、冷水系统,所述热水系统连接发电系统,该发电系统连接所述蓄电池及电路控制系统。有益效果：通过多级燃烧既可以高效的为用户持续提供热水,同时可以利用燃气燃烧的能量带动发电机发电,并将电力储存,实现能源的高效利用以及能源的综合利用。采用二次燃烧的设计,高温尾气加入到空气和燃气的混合气体中引入到二次燃烧室中燃烧做功。(The invention discloses a water control type gas engine and a self-supply environment-friendly multistage water supply system thereof, which comprise a hot water system, a cold water system, a warm water system, a power generation system, a storage battery and circuit control system, a water source, a water pump and a filtering system; the water pump pumps the water source, the water source is connected with the hot water system, the warm water system and the cold water system through the filtering system, the hot water system is connected with the power generation system, and the power generation system is connected with the storage battery and the circuit control system. Has the advantages that: through the multistage combustion, hot water can be continuously provided for users at high efficiency, meanwhile, the energy generated by gas combustion can be utilized to drive a generator to generate electricity, and the electricity is stored, so that the high-efficiency utilization of energy and the comprehensive utilization of energy are realized. By adopting the secondary combustion design, the high-temperature tail gas is added into the mixed gas of air and fuel gas and is introduced into a secondary combustion chamber to perform combustion work.)

1. The utility model provides a water accuse formula gas engine, includes gas engine, and this gas engine outer wall is provided with cooling water course, its characterized in that: a water control system is arranged at a gas inlet of the gas engine;

the water control system comprises a water inlet pipe (31), a water outlet pipe (32), a water pressure impact piston (34), a partition wall (33) and a spring (35);

the water pressure impact piston (34) is vertically arranged on an air inlet pipe at a fuel gas inlet, one end of the water pressure impact piston (34) abuts against a piston base (37) of a water control system through the spring (35), the other end of the water pressure impact piston (34) abuts against the partition wall (33) under the elastic force of the spring (35), the lower part of the water pressure impact piston (34) seals the fuel gas inlet, and the middle part of the water pressure impact piston (34) is provided with a fuel gas channel (32);

one side of the partition wall (33) is an inlet of the water control system, the inlet is connected with the water inlet pipe (31), the other side of the partition wall (33) is an outlet of the water control system, and the outlet is connected with the cooling water channel.

2. The water-controlled gas engine according to claim 1, characterized in that: a limiting table (36) is arranged on the side wall of the piston base (37);

when the water pressure impact piston (34) leaves the partition wall (33), the lower end of the water pressure impact piston (34) is abutted to the limiting table (36), and the gas channel (32) is completely communicated with an air inlet pipe of the gas engine.

3. The utility model provides a multistage water supply system of self-feeding environmental protection, includes water accuse formula gas engine, its characterized in that: comprises a hot water system, a cold water system, a warm water system, a power generation system, a storage battery and circuit control system (15), a water source (1), a water pump (2) and a filtering system (27);

the water pump (2) pumps the water source (1) and is connected with the hot water system, the warm water system and the cold water system through the filtering system (27), the hot water system is connected with the power generation system, and the power generation system is connected with the storage battery and the circuit control system (15).

4. The self-supplying, environmentally friendly multi-stage water supply system of claim 3, wherein: the hot water system comprises a three-way valve a (26), a premixer a (4), a premixer b (8), a three-way valve b (10), a primary water control type gas engine (23), a secondary water control type gas engine (14), a water control system a (29), a water control system b (30), a hot water tank (12) and a gas fan (3);

a cooling water channel a (21) is arranged on the side wall of the primary water control type gas engine (23), and a water control system a (29) is arranged at a gas inlet of the primary water control type gas engine (23);

a cooling water channel b (24) is arranged on the side wall of the secondary water control type gas engine (14), and a water control system b (30) is arranged at a gas inlet of the secondary water control type gas engine (14);

the water source (1) is connected with the water inlet end of the three-way valve a (26) through the filtering system (27), the water outlet end of the three-way valve a (26) is connected with the water inlet of the cooling water channel (21) through the water control system a (29), the water outlet of the cooling water channel (21) is connected with the water inlet of the cooling water channel b (24) through the water control system b (30), and the water outlet of the cooling water channel b (24) is connected with the hot water tank (12) and the warm water system;

the gas fan (3) is connected with a gas input port of the premixer a (4), the premixer a (4) is also provided with an air input port, a mixing output end of the premixer a (4) is connected with an air inlet pipe (25) of the primary water control type gas engine (23), and the other mixing output end of the premixer a (4) is connected with a gas input port of the premixer b (8); an exhaust pipe (22) of the primary water control type gas engine (23) is connected with a secondary gas input port of the premixer b (8) through a three-way valve b (10); the exhaust port (22) of the primary water control type gas engine (23) is also connected with the warm water system through a three-way valve b (10); the output end of the premixer b (8) is connected with the air inlet pipe of the secondary water control type gas engine (14), and the air outlet pipe of the secondary water control type gas engine (14) is connected with the warm water system.

5. The self-supplying, environmentally friendly multi-stage water supply system of claim 4, wherein: a hot water inductor (12a) is arranged in the hot water tank (12);

a circulating heat-preservation water pipe (28) is arranged at the bottom of the hot water tank (12), a pressure water pump is arranged beside the circulating heat-preservation water pipe (28), the hot water sensor (12a) is connected with the pressure water pump through a signal, and the circulating heat-preservation water pipe (28) is connected with a circulating water inlet of the three-way valve a (26).

6. The self-supplying, environmentally friendly multi-stage water supply system of claim 3, wherein:

the cold water system comprises a cold water tank (18), and a cold water sensor (18a), wherein the cold water sensor (18a) is arranged in the cold water tank (18);

the water source (1) is connected with a cold water tank (18) through the filtering system (27).

7. The self-supplying, environmentally friendly multi-stage water supply system of claim 3, wherein:

the warm water system comprises a warm water tank (11), a warm water sensor (11a), a water valve (5), a tail gas heat exchanger (7), an S-shaped heat exchange water pipe (6) and a three-way valve c (9); the S-shaped heat exchange water pipe (6) is arranged in the tail gas heat exchanger (7), and both ends of the S-shaped heat exchange water pipe (6) extend out of the tail gas heat exchanger (7) to be provided with an air inlet end and an air outlet end; the warm water sensor (11a) is arranged in the warm water tank (11); the warm water sensor (11a) is connected with the water valve (5) through signals.

The water source (1) is connected with the S-shaped heat exchange water pipe (6) through the filtering system (27) and the water valve (5) in sequence, and the S-shaped heat exchange water pipe (6) is connected with the warm water tank (11) through a three-way valve c (9); the water outlet of the cooling water channel b (24) is connected with the warm water tank (11) through the three-way valve c (9).

8. The self-supplying, environmentally friendly multi-stage water supply system of claim 3, wherein:

the power generation system comprises a transmission system (13) and a generator (17);

a primary engine piston (20) and a secondary engine piston (19) are respectively arranged in the primary water control type gas engine (23) and the secondary water control type gas engine (14);

the primary water control type gas engine (23) and the primary engine piston (20) and the secondary engine piston (19) of the secondary water control type gas engine (14) are connected with a transmission system (13), the transmission system (13) is connected with a generator (17), and the generator (17) is connected with the storage battery and the circuit control system (15).

9. The self-supplying, environmentally friendly multi-stage water supply system of claim 3, wherein: the storage battery and circuit control system (15) supplies power to the inductors, the electromagnetic valve and the water pump (2) of the hot water system, the warm water system and the cold water system, and supplies power to the primary water control type gas engine (23) and the secondary water control type gas engine (14) in the hot water system.

10. The self-supplying, environmentally friendly multi-stage water supply system of claim 3, wherein: the secondary engine piston (19) can also be arranged coaxially with the water pump (2) via the transmission system (13).

Technical Field

The invention relates to the technical field of environment-friendly and multistage water supply power generation, in particular to a water control type gas engine and a self-supply environment-friendly multistage water supply system thereof.

Background

With the increasing demand for energy in industrial production and residential life and the increasing contradiction between environmental problems and energy development, the energy problem becomes a hotspot for academic and industrial discussions in recent years, and the exploration of how to improve the energy utilization rate on the premise of environmental friendliness becomes a main concern of countries in the world. In recent years, the energy source system is further coupled by the energy source diversification development of the source terminal and the receiving terminal and the innovation of the energy source transmission and equipment. The proposal of concepts such as energy internet, comprehensive energy system and the like and the recent push of the concept of internet and intelligent energy in China raise a new wave of energy reform. The energy internet concept provides a brand new visual angle for energy analysis, and brings the blending and innovation among multiple fields, multiple disciplines and multiple dimensions.

As one of the most major developing countries in the world, according to the large data report of Chinese energy in 2018, the two energy consumptions of coal and oil account for 80-90% of the total primary energy consumption of China from the decade of 2008-2017. In 2017, the coal consumption of China accounts for 60.4% of the total energy consumption, the petroleum consumption proportion is continuously increased to 18.8%, and the clean energy consumption of natural gas, hydropower, nuclear power, wind power and the like accounts for 20.8% of the total energy consumption. Therefore, although the proportion of clean energy consumption in China is increasing in recent years, the current situation that economic production development mainly depends on coal and petroleum consumption is still not changed. Therefore, the first premise of advocating the realization of sustainable economic development in China is to utilize a new business model of energy Internet to develop clean energy to replace the traditional fossil energy consumption, improve the energy structure and create more opportunities for the business development by constructing a new energy system and an economic development model.

At present, the energy structure of China is mainly coal, the energy consumption proportion of a second industry, particularly a high-energy-consumption industry, is too high, the total production value (GDP) energy consumption of a unit in China is far higher than that of a developed country, the energy consumption structure is unreasonable, especially, the coal consumption proportion is high, the non-coal energy consumption proportion is low, meanwhile, the energy consumption intensity is high, the total consumption is high, the overall energy efficiency level is low, and the emission of CO2 is large, so that the bottleneck restriction on the development of the social economy of China is formed, the energy consumption revolution is urgently needed, the energy utilization efficiency is improved, unreasonable consumption is restrained, and the scientific development of energy consumption is realized.

Natural gas is an important energy source which is comprehensively complementary with coal-electricity energy at present as clean energy with high heat density. The distributed energy sources need to form a reliable and efficient energy network and an intelligent allocation system at a source end and a delivery end, a comprehensive efficient energy use scheme also needs to be provided at a market end, and the energy sources are supplied and used safely at a user end through comprehensive use of various energy sources.

The use of electric power energy is a major part of the energy use of residential users, and once the supply of electric power energy is not continuous enough and stable enough, the residential users need to consider the safety and stability of energy use. Natural gas has the advantage of being cleaner relative to coal in providing thermal energy, while natural gas has a higher efficiency in heating relative to residential heating. Therefore, the advantages of natural gas for providing heat energy are combined, the function of natural gas clean energy and the function of electric power convenience are fully exerted, and the comprehensive utilization of energy of residential users and the development of distributed energy development are actively promoted.

When gas is mined in the field or a gas pipe network system is maintained, a gas engine is often used for supplying power, and the engine generates a large amount of heat energy at the same time, so that the energy is not fully converted; when the engine runs in the absence of cooling liquid after long-term operation in the field, the temperature of the engine is very high, the engine is easily burnt, the cylinder of the engine is easily pulled, or a bearing bush is melted, and the piston can be ablated. When the engine is short of the coolant, the engine cannot be operated for a long time, and further cannot be operated at a high rotating speed. And the field construction environments such as gas exploitation, maintenance and the like contain rich gas resources and water resources, and how to utilize and maintain relevant field gas equipment is good.

Disclosure of Invention

In order to solve the problems, the invention provides a water control type gas engine and a self-supply environment-friendly multistage water supply system thereof, which can realize the maximization of the energy utilization rate under the limited condition of field operation, thereby not only protecting the dry combustion condition of the gas engine, but also realizing the maximization of the energy utilization rate through the multistage water supply system. In order to achieve the purpose, the invention adopts the following specific technical scheme:

example 1: the utility model provides a water accuse formula gas engine, includes gas engine, and this gas engine outer wall is provided with the cooling water course, and its key lies in: a water control system is arranged at a gas inlet of the gas engine;

the water control system comprises a water inlet pipe, a water outlet pipe, a water pressure impact piston, a partition wall and a spring;

the water pressure impact piston is vertically arranged on an air inlet pipe at a fuel gas inlet; one end of the water pressure impact piston abuts against a piston base of the water control system through the spring, the other end of the water pressure impact piston abuts against the partition wall under the elastic force of the spring, and the lower part of the water pressure impact piston seals a fuel gas inlet; the middle part of the water pressure impact piston is provided with a gas channel;

one side of the partition wall is an inlet of the water control system, the inlet is connected with the water inlet pipe, the other side of the partition wall is an outlet of the water control system, and the outlet is connected with the cooling water channel.

Through the design, a water pump is used for pumping water under the field condition, the water control system is internally pushed by water pressure to impact the piston, and the gas inlet pipe of the gas engine is communicated. The periphery of the gas engine is provided with a cooling water channel, a gas channel in the water suction pump working water control system is aligned with the gas inlet pipe, and the gas engine starts to work, and meanwhile, the cooling water channel is filled with water to prevent the gas engine from being dried and heat a water source.

Further, a limit table is arranged on the side wall of the piston base;

when the water pressure impact piston leaves the partition wall, the lower end of the water pressure impact piston is abutted against the limiting table, and the gas channel is completely communicated with an air inlet pipe of the gas engine.

Through the design, when the end part of the water pressure impact piston props against the limiting table, the gas channel aims at the gas inlet pipe to completely conduct the gas inlet pipe of the gas engine.

The utility model provides a multistage water supply system of self-feeding environmental protection, includes water accuse formula gas engine, its key lies in: the system comprises a hot water system, a cold water system, a warm water system, a power generation system, a storage battery and circuit control system, a water source, a water pump and a filtering system;

the water pump pumps the water source, the water source is connected with the hot water system, the warm water system and the cold water system through the filtering system, the hot water system is connected with the power generation system, and the power generation system is connected with the storage battery and the circuit control system.

Through the design, this multistage water supply system of self-supplying environmental protection is used for the field condition to use, and the system sets up multistage water supply, and the system start initial stage, the battery is the water pump power supply, draws water through the water pump and connects the cooling water course through filtration system, and water control system receives the water pressure to switch on the intake pipe, and gas engine operation, with the power generation system linkage, the cooling water course cooling engine that sets up on the gas engine wall is heating the water supply simultaneously.

Further, the hot water system includes a three-way valve a, a premixer b, a three-way valve b, a primary water-controlled gas engine, a secondary water-controlled gas engine, a water-controlled system a, a water-controlled system b, a hot water tank, and a gas fan;

a cooling water channel a is arranged on the side wall of the primary water control type gas engine, and a water control system a is arranged at a gas inlet of the primary water control type gas engine;

a cooling water channel b is arranged on the side wall of the secondary water control type gas engine, and a water control system b is arranged at a gas inlet of the secondary water control type gas engine;

the water source is connected with the water inlet end of the three-way valve a through the filtering system, the water outlet end of the three-way valve a is connected with the water inlet of the cooling water channel through the water control system a, the water outlet of the cooling water channel is connected with the water inlet of the cooling water channel b through the water control system b, and the water outlet of the cooling water channel b is connected with the hot water tank and the warm water system;

the gas fan is connected with a gas input port of the premixer a, the premixer a is also provided with an air input port, a mixing output end of the premixer a is connected with an air inlet pipe of the primary water control type gas engine, and the other mixing output end of the premixer a is connected with a gas input port of the premixer b; an exhaust pipe of the primary water control type gas engine is connected with a secondary gas input port of the premixer b through a three-way valve b; the exhaust port of the primary water control type gas engine is also connected with the warm water system through a three-way valve b; the output end of the premixer b is connected with the air inlet pipe of the secondary water control type gas engine, and the exhaust pipe of the secondary water control type gas engine is connected with the warm water system.

Through the design, the hot water system adopts a primary combustion scheme and a secondary combustion scheme, the primary water control type gas engine and the secondary water control type gas engine are both provided with cooling water channels, the two cooling water channels can be heated in multiple stages, the premixer a is used for mixing input gas and air for combustion, the premixer b is used for mixing input gas, air and hot tail gas for continuous combustion, and a water source in the cooling water channels is input into the hot water tank through the multiple stages of heating. And a mode of premixing gas and air is adopted, so that the combustion efficiency is improved, and higher power is output for power generation.

Further, a hot water inductor is arranged in the hot water tank;

a circulating heat-preservation water pipe is arranged at the bottom of the hot water tank, a pressure water pump is arranged beside the circulating heat-preservation water pipe, the hot water sensor is connected with the pressure water pump through signals, and the circulating heat-preservation water pipe is connected with a circulating water inlet of the three-way valve a.

Through above-mentioned design, the hot water inductor that sets up in the hot-water tank is used for detecting the inside temperature of hot-water tank, and when the inside temperature of hot-water tank dropped, hot water inductor control pressure water pump got back to elementary water accuse formula gas engine's cooling water course entry reheating through circulation heat preservation water pipe, guarantees the interior temperature of hot-water tank.

Preferably, the warm water system comprises a warm water tank, a warm water sensor, a water valve, a tail gas heat exchanger, an S-shaped heat exchange water pipe and a three-way valve c; the S-shaped heat exchange water pipe is arranged in the tail gas heat exchanger, and both ends of the S-shaped heat exchange water pipe extend out of the tail gas heat exchanger to be provided with an air inlet end and an air outlet end; the warm water sensor is arranged in the warm water tank; the warm water sensor is connected with the water valve through signals.

The water source is connected with the S-shaped heat exchange water pipe through the filtering system and the water valve in sequence, and the S-shaped heat exchange water pipe is connected with the warm water tank through a three-way valve c; and the water outlet of the cooling water channel b is connected with the warm water tank through the three-way valve c.

Through the design, the warm water system is internally provided with the s-shaped heat exchange water pipe, the heat in the tail gas heat exchanger is utilized to heat a water source, the heat in the tail gas is utilized to heat the heat exchange water pipe, the heat of combustion is fully utilized, and the energy is saved. The warm water sensor in the warm water tank is used for detecting the temperature of water in the warm water tank and controlling a water valve to input water source to be mixed with hot water output from the hot water system so as to realize the temperature of the warm water.

Further described, the power generation system comprises a transmission system and a generator;

a primary engine piston and a secondary engine piston are respectively arranged in the primary water control type gas engine and the secondary water control type gas engine;

and the primary engine piston and the secondary engine piston of the primary water control type gas engine and the secondary water control type gas engine are connected with a transmission system, the transmission system is connected with a generator, and the generator is connected with the storage battery and the circuit control system.

Through the design, the primary water control type gas engine and the secondary water control type gas engine are both provided with pistons connected with a transmission system, and the gas engines operate to drive the generator to generate electricity to charge the storage battery so as to provide power for the circuit control system.

Further, the storage battery and the circuit control system supply power to the sensors, the electromagnetic valve and the water pump of the hot water system, the warm water system and the cold water system, and supply power to the primary water control type gas engine and the secondary water control type gas engine in the hot water system.

The secondary engine piston can also be arranged coaxially with the water pump via the transmission system.

Through the design, the whole system realizes field self-power supply, and the gas engine self-power supplies power for the inductor, the electromagnetic valve and the water suction pump in the system. The secondary engine piston is coaxially arranged with the water pump through the transmission system, and can also directly drive the water pump to operate when the engine piston operates, so that the loss in the energy conversion process is reduced.

The invention has the beneficial effects that: the invention adopts the design that the primary water control type gas engine and the secondary water control type gas engine drive the piston, can efficiently and continuously provide hot water for users through multi-stage combustion, simultaneously can drive the generator to generate electricity by utilizing the energy of gas combustion, stores the electricity, realizes the efficient utilization of energy and the comprehensive utilization of energy, and simultaneously provides an efficient product design idea for the arrangement of household distributed energy. By adopting the secondary combustion design, the high-temperature tail gas is added into the mixed gas of air and fuel gas and is introduced into a secondary combustion chamber to perform combustion work. The design improves the temperature of air and fuel gas through the introduction of high-temperature tail gas, improves the combustion efficiency, reduces the combustion temperature and reduces the discharged nitrogen oxides. The storage battery can store the generated energy when the system is heated, provide stable electric energy for users, and realize the conversion of the gas energy to heat energy and electric energy under the condition of no external power supply. The circuit control system obtains water tank data in real time through the water level detector and the temperature detector, and intelligent control of the whole system is achieved through the storage battery and the circuit control system.

Drawings

FIG. 1 is a block diagram of a cross-sectional structure of a water control system of a water control gas engine according to the present invention;

FIG. 2 is a block diagram of the cross-sectional structure of the water control system of the water control gas engine of the present invention when the air inlet pipe is connected;

FIG. 3 is a block diagram showing the construction of a self-supplying environmental protection multi-stage water supply system of the embodiment 1 of the present invention;

fig. 4 is a block diagram of the self-supplying environmental protection multi-stage water supply system of the embodiment 2 of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

As can be seen by combining fig. 1 and 2, a water control type gas engine comprises a gas engine, wherein a cooling water channel is arranged on the outer wall of the gas engine, and a water control system is arranged at a gas inlet of the gas engine;

the water control system comprises a water inlet pipe 31, a water outlet pipe 32, a water pressure impact piston 34, a partition wall 33 and a spring 35;

the water pressure impact piston 34 is vertically arranged on an air inlet pipe at a fuel gas inlet; one end of the hydraulic impact piston 34 is abutted against a piston base 37 of the water control system through the spring 35, the other end of the hydraulic impact piston 34 is abutted against the partition wall 33 by the elasticity of the spring 35, and the lower part of the hydraulic impact piston 34 completely seals a gas inlet; the middle part of the water pressure impact piston 34 is provided with a gas channel 32;

one side of the partition wall 33 is an inlet of the water control system, the inlet is connected with the water inlet pipe 31, and the other side of the partition wall 33 is an outlet of the water control system, and the outlet is connected with the cooling water channel.

A limiting table 36 is arranged on the side wall of the piston base 37;

when the water pressure impact piston 34 leaves the partition wall 33, the lower end of the water pressure impact piston 34 abuts against the limit table 36, and the gas channel 32 is completely communicated with an air inlet pipe of the gas engine.

As can be seen from fig. 3, a self-supplying environment-friendly multi-stage water supply system comprises a water-controlled gas engine, and is characterized in that: comprises a hot water system, a cold water system, a warm water system, a power generation system, a storage battery and circuit control system 15, a water source 1, a water pump 2 and a filtering system 27;

the water pump 2 pumps the water source 1 and is connected with the hot water system, the warm water system and the cold water system through the filtering system 27, the hot water system is connected with the power generation system, and the power generation system is connected with the storage battery and the circuit control system 15.

The hot water system comprises a three-way valve a 26, a premixer a 4, a premixer b 8, a three-way valve b 10, a primary water control type gas engine 23, a secondary water control type gas engine 14, a water control system a 29, a water control system b 30, a hot water tank 12 and a gas fan 3;

a cooling water channel a 21 is arranged on the side wall of the primary water control type gas engine 23, and a water control system a 29 is arranged at a gas inlet of the primary water control type gas engine 23;

a cooling water channel b 24 is arranged on the side wall of the secondary water control type gas engine 14, and a water control system b 30 is arranged at a gas inlet of the secondary water control type gas engine 14;

the water source 1 is connected with the water inlet end of the three-way valve a 26 through the filtering system 27, the water outlet end of the three-way valve a 26 is connected with the water inlet of the cooling water channel 21 through the water control system a 29, the water outlet of the cooling water channel 21 is connected with the water inlet of the cooling water channel b 24 through the water control system b 30, and the water outlet of the cooling water channel b 24 is connected with the hot water tank 12 and the warm water system;

the gas fan 3 is connected with a gas input port of the premixer a 4, the premixer a 4 is also provided with an air input port, a mixing output end of the premixer a 4 is connected with an air inlet pipe 25 of the primary water control type gas engine 23, and the other mixing output end of the premixer a 4 is connected with a gas input port of the premixer b 8; an exhaust pipe 22 of the primary water control type gas engine 23 is connected with a secondary gas input port of the premixer b 8 through a three-way valve b 10; the exhaust port 22 of the primary water control type gas engine 23 is also connected with the warm water system through a three-way valve b 10; the output end of the premixer b 8 is connected with the air inlet pipe of the secondary water control type gas engine 14, and the air outlet pipe of the secondary water control type gas engine 14 is connected with the warm water system.

A hot water inductor 12a is arranged in the hot water tank 12;

the bottom of the hot water tank 12 is provided with a circulating heat-preservation water pipe 28, a pressure water pump is arranged beside the circulating heat-preservation water pipe 28, the hot water sensor 12a is connected with the pressure water pump through signals, and the circulating heat-preservation water pipe 28 is connected with a circulating water inlet of the three-way valve a 26.

The cold water system comprises a cold water tank 18 and a cold water sensor 18a, wherein the cold water sensor 18a is arranged in the cold water tank 18;

the water source 1 is connected to a cold water tank 18 via the filter system 27.

The warm water system comprises a warm water tank 11, a warm water sensor 11a, a water valve 5, a tail gas heat exchanger 7, an S-shaped heat exchange water pipe 6 and a three-way valve c 9; the S-shaped heat exchange water pipe 6 is arranged in the tail gas heat exchanger 7, and both ends of the S-shaped heat exchange water pipe 6 extend out of the tail gas heat exchanger 7 to leave an air inlet end and an air outlet end; the warm water sensor 11a is arranged in the warm water tank 11; the warm water sensor 11a is connected with the water valve 5 through signals.

The water source 1 is connected with the S-shaped heat exchange water pipe 6 through the filtering system 27 and the water valve 5 in sequence, and the S-shaped heat exchange water pipe 6 is connected with the warm water tank 11 through a three-way valve c 9; the water outlet of the cooling water channel b 24 is connected with the warm water tank 11 through the three-way valve c 9.

The power generation system comprises a transmission system 13 and a generator 17;

the primary water control type gas engine 23 and the secondary water control type gas engine 14 are respectively provided with a primary engine piston 20 and a secondary engine piston 19;

the primary water control type gas engine 23 and the primary engine piston 20 and the secondary engine piston 19 of the secondary water control type gas engine 14 are connected with a transmission system 13, the transmission system 13 is connected with a generator 17, and the generator 17 is connected with the storage battery and the circuit control system 15.

The storage battery and circuit control system 15 supplies power to the inductors, the electromagnetic valve and the water pump 2 of the hot water system, the warm water system and the cold water system, and supplies power to the primary water control type gas engine 23 and the secondary water control type gas engine 14 in the hot water system.

Example 2:

as can be seen from fig. 2, the secondary engine piston 19 is arranged coaxially with the water pump 2 via the transmission system 13. When the secondary engine works, the piston drives the water pump to work through the transmission system, and the energy utilization rate is improved.

The working principle of the invention is as follows: the invention discloses a water control type gas engine and a self-supply environment-friendly multistage water supply system thereof. The system provides hot and cold water for users by using fuel gas, and simultaneously can provide stable electric energy for the users. In a multi-stage water supply system, a water source is pumped by a water pump, and the water is respectively sent into a cold water system, a warm water system and a hot water system after passing through a filtering system. In order to ensure the temperature of water in the warm water tank and the hot water tank, the water pipeline continuously supplies hot water to the warm water tank and the hot water tank by heating through the primary water control type gas engine and the secondary water control type gas engine, and when the temperature of the water in the hot water tank is reduced, the water in the hot water tank is heated again through the cooling water channel through the circulating heat preservation water pipe at the bottom of the hot water tank. When the water pump pumps water, the fan sends air into the premixing chamber to be fully mixed with gas and then sent into the combustion chamber to be combusted, meanwhile, hot tail gas of the combustion chamber is sent into the secondary combustion chamber to be combusted and sent into the water source primary water control type gas engine and the secondary water control type gas engine in the cooling pipeline after being mixed again to be combusted to do work to drive the pistons to move, the generator is enabled to generate electricity through the transmission system, and the generated electricity is stored in the storage battery. The invention not only can provide cold and hot water for users, but also can provide electric energy for the system and external users through the power generation system, thereby realizing environmental protection, energy conservation and emission reduction, and realizing high-efficiency, multi-stage and complementary utilization of energy.

Reference is made above in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described above with reference to the drawings are exemplary and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.