CN218882306U

CN218882306U - Distributed cold, heat and electricity triple energy supply station

Info

Publication number: CN218882306U
Application number: CN202223137434.5U
Authority: CN
Inventors: 李强
Original assignee: Guangdong Fengle Energy Technology Co ltd
Current assignee: Guangdong Fengle Energy Technology Co ltd
Priority date: 2022-11-24
Filing date: 2022-11-24
Publication date: 2023-04-18
Anticipated expiration: 2032-11-24

Abstract

The application provides a distributing type trigeminy energy supply station of cold, heat and electricity, distributing type trigeminy energy supply station of cold, heat and electricity includes the power generation module, retrieve module and output module, the power generation module includes the compressor, the combustion chamber, gas turbine and generator, the power generation module is used for the natural gas burning electricity generation, it includes exhaust-heat boiler to retrieve the module, first governing valve, the load control boiler, branch cylinder and flowmeter, the steam inlet of branch cylinder is connected respectively to the steam outlet of exhaust-heat boiler and load control boiler, the exhanst gas outlet of exhaust-heat boiler's fume inlet connection gas turbine, the gas inlet of load control boiler is used for connecting the natural gas pipe network, the gas inlet at the load control boiler is installed to first governing valve, the steam outlet at the branch cylinder is installed to the flowmeter, first governing valve can respond to flowmeter control flow, the steam outlet of branch cylinder is connected to output module, output module is used for refrigeration and/or heating. The distributed cooling, heating and power triple energy supply station can better cope with peak loads.

Description

Distributed cold, heat and electricity triple energy supply station

Technical Field

The application relates to the field of natural gas power generation, in particular to a distributed cooling, heating and power triple energy supply station.

Background

The natural gas distributed energy is a modern energy supply mode which utilizes natural gas as fuel, realizes gradient utilization of energy through combined supply of cold, heat and electricity and the like, has the comprehensive energy utilization efficiency of more than 70 percent, realizes energy supply nearby a load center and is an important mode for efficient utilization of natural gas.

The combined cooling heating and power supply generally uses the tail gas of an internal combustion engine to heat a boiler, and then uses the steam generated by the boiler for cooling and/or heating. Some prior art can directly be used for heat exchanger heat transfer heating and refrigerator refrigeration with steam, and some prior art can utilize steam to generate electricity.

When being directly used for supplying cold and/or heating, because the load of user side can change often, the steam that the boiler produced is difficult to the accurate user demand that matches, if steam is not enough, can lead to heating, refrigeration effect to descend, influences user's use and experiences, and this situation appears especially easily in peak period.

SUMMERY OF THE UTILITY MODEL

The present application is directed to solving at least one of the problems in the prior art. Therefore, the distributed combined cooling heating and power energy supply station is provided, and the distributed combined cooling heating and power energy supply station can better cope with peak loads.

According to the distributed cold, heat and electricity trigeminy energy supply station that provides of this application embodiment, including power generation module, recovery module and output module, power generation module includes compressor, combustion chamber, gas turbine and generator, power generation module is used for natural gas burning electricity generation, recovery module includes exhaust-heat boiler, first governing valve, load regulation boiler, steam-distributing cylinder and flowmeter, exhaust-heat boiler with the steam outlet of load regulation boiler is connected respectively the steam inlet of steam-distributing cylinder, exhaust-heat boiler's flue gas inlet connection the exhanst gas outlet of gas turbine, the gas inlet of load regulation boiler is used for connecting the natural gas pipe network, first governing valve is installed the gas inlet of load regulation boiler, the flowmeter is installed the steam outlet of steam-distributing cylinder, first governing valve can respond to the flowmeter flow is adjusted, output module connects the steam outlet of steam-distributing cylinder, output module is used for refrigeration and/or heating.

According to the distributed combined cooling heating and power supply station provided by the embodiment of the application, the distributed combined cooling heating and power supply station at least has the following technical effects: the generator utilizes the energy electricity generation of natural gas burning, exhaust-heat boiler utilizes gas turbine exhaust high temperature flue gas to generate steam, output module is used for refrigeration and/or heating with steam, thereby realize the supply of cold and hot electricity trigeminy, load regulation boiler produces steam through burning the natural gas, the gas flow of load regulation boiler can be adjusted to first governing valve, thereby the steam flow of control load regulation boiler, it is undulant to appear in exhaust-heat boiler's steam flow, or when the load of user end appears undulant, first governing valve can adjust the gas flow of load regulation boiler in response to the steam flow that the flowmeter detected, distributed cold and hot electricity trigeminy energy supply station can deal with the peak load better.

According to some embodiments of the application, the waste heat boiler includes the after-combustion chamber, first combustor is installed to the after-combustion chamber, the gas entry of after-combustion chamber is used for connecting the natural gas pipe network.

According to some embodiments of the present application, the first burner uses a low-nitrogen burner.

According to some embodiments of the application, the recovery module comprises a second regulating valve installed at a gas inlet of the afterburner.

According to some embodiments of the application, the waste heat boiler comprises a first return channel and a second return channel.

According to some embodiments of the application, the output module comprises an absorption chiller, a vapor inlet of the absorption chiller being connected to a vapor outlet of the gas-dividing cylinder.

According to some embodiments of the application, the output module comprises a heat exchanger, a steam inlet of the heat exchanger is connected with a steam outlet of the gas-distributing cylinder, and a hot water outlet of the heat exchanger is used for connecting a heating device.

According to some embodiments of the present application, the heat exchanger is in heat exchange connection with the absorption chiller as a heat source for the absorption chiller.

According to some embodiments of the application, the output module comprises a heat supply pipeline for outputting steam.

According to some embodiments of the present application, the power generation module includes a temperature sensor and a third regulating valve, the third regulating valve is installed at a gas inlet of the combustion chamber, the temperature sensor is installed on the combustion chamber, and the third regulating valve can regulate a flow rate in response to the temperature sensor.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a distributed combined cooling heating and power supply station according to an embodiment of the present application.

Reference numerals:

a compressor 110, a combustion chamber 120, a gas turbine 130, a generator 140, a temperature sensor 150, a third regulating valve 160,

A waste heat boiler 210, a first regulating valve 220, a load regulating boiler 230, a gas distributing cylinder 240, a flow meter 250, a second regulating valve 260,

Absorption chiller 310, heat exchanger 320, shutoff valve 330, main valve 340.

Detailed Description

Reference will now be made in detail to embodiments of the present application, 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 below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be understood that the positional descriptions, such as the directions of up, down, front, rear, left, right, etc., referred to herein are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present application.

In the description of the present application, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and larger, smaller, larger, etc. are understood as excluding the present number, and larger, smaller, inner, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present application, unless otherwise expressly limited, terms such as set, mounted, connected and the like should be construed broadly, and those skilled in the art can reasonably determine the specific meaning of the terms in the present application by combining the detailed contents of the technical solutions.

Referring to fig. 1, the distributed combined cooling heating and power supply station provided in the embodiment of the present application includes a power generation module, a recovery module and an output module, the power generation module includes a compressor 110, a combustion chamber 120, a gas turbine 130 and a generator 140, the power generation module is used for natural gas combustion power generation, the recovery module includes a waste heat boiler 210, a first regulating valve 220, a load regulating boiler 230, a gas splitting cylinder 240 and a flow meter 250, steam outlets of the waste heat boiler 210 and the load regulating boiler 230 are respectively connected to a steam inlet of the gas splitting cylinder 240, a flue gas inlet of the waste heat boiler 210 is connected to a flue gas outlet of the gas turbine 130, a gas inlet of the load regulating boiler 230 is used for connecting to a natural gas pipe network, the first regulating valve 220 is installed at a gas inlet of the load regulating boiler 230, the flow meter 250 is installed at a steam outlet of the gas splitting cylinder 240, the first regulating valve 220 can regulate flow in response to the flow meter 250, the output module is connected to a steam outlet of the gas splitting cylinder 240, and the output module is used for cooling and/or heating.

The distributed triple cooling heating and power energy supply station provided by the embodiment of the application, the generator 140 utilizes energy generated by combustion of natural gas to generate electricity, the waste heat boiler 210 utilizes high-temperature flue gas exhausted by the gas turbine 130 to generate steam, the output module uses the steam for cooling and/or heating, thereby realizing triple supply of cooling, heating and power, the load adjusting boiler 230 generates steam by burning natural gas, the first adjusting valve 220 can adjust the gas flow of the load adjusting boiler 230, thereby controlling the steam flow of the load adjusting boiler 230, when the steam flow of the waste heat boiler 210 fluctuates, or when the load of a user side fluctuates, the first adjusting valve 220 can adjust the gas flow of the load adjusting boiler 230 in response to the steam flow detected by the flowmeter 250, and the distributed triple cooling heating and power energy supply station can better cope with peak load.

The communication link between the first regulator valve 220 and the flow meter 250 is schematically depicted in fig. 1 by dashed lines.

The recovery module is first further described. In some embodiments, the exhaust-heat boiler 210 includes an afterburner with a first burner, and a gas inlet of the afterburner is used for connecting a natural gas pipe network. When the flow rate of the high-temperature flue gas entering the waste heat boiler 210 from the gas turbine 130 is unstable, the waste heat boiler 210 can generate steam by using the heat of the combustion of the natural gas in the afterburner, so that the waste heat boiler 210 can operate more stably. The low NOx burner can be used to first combustor, and the low NOx burner has the low characteristics of fuel combustion process in nitrogen oxide emission to ensure that distributed cooling heating power supply station has lower nitrogen emission, the clean environmental protection more in distributed cooling heating power supply station.

In some embodiments, the recovery module includes a second regulating valve 260, the second regulating valve 260 being mounted at the gas inlet of the afterburner. The second regulating valve 260 is used for regulating the combustion condition of the afterburner, so as to better balance the high-temperature flue gas flow of the gas turbine 130.

In some embodiments, the heat recovery steam generator 210 includes a first return path and a second return path. That is, the exhaust-heat boiler 210 adopts a two-pass exhaust-heat boiler, which can improve the heat transfer efficiency and reduce the energy waste. Fig. 1 schematically illustrates the basic principle of a two-return type exhaust-heat boiler with an afterburning chamber, wherein the afterburning chamber is located below a flue gas inlet, a first return channel and a second return channel are sequentially connected, and the flue gas exchanges heat with a heat pipe in the first return channel and the second return channel.

The output module is further described below. In some embodiments, the output module includes an absorption chiller 310, and a vapor inlet of the absorption chiller 310 is connected to a vapor outlet of the gas-splitting cylinder 240. Absorption chiller 310 is well known in the art. Briefly, dilute solution is heated by a heat source in a generator to become concentrated solution, the concentrated solution enters an absorber, refrigerant steam generated by heating is condensed into liquid in a condenser, liquid refrigerant enters an evaporator to be evaporated, the purpose of refrigeration is achieved by absorbing heat, and the concentrated solution absorbs the refrigerant to become dilute solution and returns to the generator again. The absorption chiller 310 can use steam or plant waste heat for refrigeration, and a lithium bromide chiller is one of the absorption chillers 310 commonly used in the art.

In some embodiments, the output module includes a heat exchanger 320, a steam inlet of the heat exchanger 320 is connected with a steam outlet of the gas-distributing cylinder 240, and a hot water outlet of the heat exchanger 320 is used for connecting a heating device. The heat exchanger 320 can generate hot water by heat exchange, thereby heating the heating apparatus.

In some embodiments, the heat exchanger 320 is in heat exchange communication with the absorption chiller 310 to act as a heat source for the absorption chiller 310. At this time, a part of the hot water generated by the heat exchanger 320 is supplied to the heating device, and the other part is supplied to the absorption refrigerator 310, and the absorption refrigerator 310 heats the dilute solution using the hot water and steam as heat sources. In some embodiments, the absorption chiller 310 may be designed with a two-stage heating structure, in which the dilute solution is heated by hot water to be the medium-concentration solution, and then the medium-concentration solution is heated by steam to be the concentrated solution.

In some embodiments, the output module comprises a heat supply pipeline for outputting steam.

Referring to fig. 1, in some embodiments, the output module includes a main pipe and three branch pipes, the main pipe is connected to one of the steam outlets of the branch cylinders 240, the main pipe is provided with a main valve 340, the branch pipes are provided with a shutoff valve 330, one of the branch pipes serves as a heat supply pipe, the heat exchanger 320 and the absorption refrigerator 310 are respectively provided on the other two branch pipes, and the distributed cooling heating power supply station can selectively perform cooling, heating and heating according to downstream requirements.

As shown in FIG. 1, the steam-splitting cylinder 240 generally includes a plurality of steam outlets, in embodiments where only one steam outlet to the steam-splitting cylinder 240 is used, other steam outlets of the steam-splitting cylinder 240 may be used for other purposes. In another embodiment, the main pipe may be eliminated, and three branch pipes are respectively connected to the three steam outlets of the branch cylinder 240.

The power generation module is further described next. It is understood that how the compressor 110, combustor 120, gas turbine 130 and generator 140 are connected and operated is within the skill of the art. In brief, the compressor 110 generates high-pressure gas, the gas is mixed with the combustion gas in the combustion chamber 120 to be combusted to generate high-temperature and high-pressure gas, and the gas enters the gas turbine 130 to do work to drive the generator 140 to generate electricity. The high-temperature flue gas after work is sent to the exhaust-heat boiler 210.

In some embodiments, the power generation module includes a temperature sensor 150 and a third regulating valve 160, the third regulating valve 160 being mounted at the fuel gas inlet of the combustion chamber 120, the temperature sensor 150 being mounted on the combustion chamber 120, the third regulating valve 160 being capable of regulating the flow in response to the temperature sensor 150. In fig. 1, the communication connection between the temperature sensor 150 and the third regulating valve 160 is also shown by a dotted line, and by adding feedback regulation, the combustion quality of the combustion chamber 120 can be improved, and the energy waste can be reduced. The combustion chamber 120 is provided with a second burner, and the second burner may be a low-nitrogen burner.

The distributed combined cooling heating and power supply station according to the embodiment of the present application is described in detail in a specific embodiment with reference to fig. 1. It is to be understood that the following description is illustrative only and is not intended to be in any way limiting. The present embodiments may also be replaced by or combined with the corresponding technical features described above.

The distributed type combined cooling heating and power energy station comprises a power generation module, a recovery module and an output module.

The power generation module includes a compressor 110, a combustor 120, a gas turbine 130, a generator 140, a temperature sensor 150, and a third regulating valve 160.

The gas outlet of the compressor 110 is connected to the gas inlet of the combustion chamber 120, the gas inlet of the combustion chamber 120 is connected to the natural gas pipe network, the third regulating valve 160 is installed at the gas inlet of the combustion chamber 120, the gas outlet of the combustion chamber 120 is connected to the gas inlet of the gas turbine 130, and the output shaft of the gas turbine 130 is connected to the generator 140.

The recovery module includes a waste heat boiler 210, a first adjustment valve 220, a load adjustment boiler 230, a steam separation cylinder 240, a flow meter 250, and a second adjustment valve 260. The exhaust-heat boiler 210 is a two-return exhaust-heat boiler and has an afterburning chamber, a flue gas inlet of the exhaust-heat boiler 210 is connected with a flue gas outlet of the gas turbine 130, a gas inlet of the afterburning chamber and a gas inlet of the load adjusting boiler 230 are connected with a natural gas pipe network, and steam outlets of the exhaust-heat boiler 210 and the load adjusting boiler 230 are respectively connected with a steam inlet of the steam distributing cylinder 240. The first adjusting valve 220 is installed at a gas inlet of the load-adjusting boiler 230, and the flow meter 250 is installed at a steam outlet of the division cylinder 240, and the first adjusting valve 220 can adjust a flow rate in response to the flow meter 250. The second regulating valve 260 is installed at a gas inlet of the afterburner.

The output module comprises a main pipeline and three branch pipelines, and the output module comprises an absorption refrigerator 310, a heat exchanger 320, a shutoff valve 330 and a main valve 340. The main pipeline is connected with one of the steam outlets of the branch cylinder 240, the main pipeline is provided with a main valve 340, the branch pipelines are provided with a shutoff valve 330, one of the branch pipelines is used as a heat supply pipeline, and the heat exchanger 320 and the absorption refrigerator 310 are respectively arranged on the other two branch pipelines. The hot water outlet of the heat exchanger 320 is used for connecting a heating device, and the heat exchanger 320 is in heat exchange connection with the absorption refrigerator 310.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a distributing type cold and hot electricity trigeminy energy supply station which characterized in that includes:

the power generation module comprises a gas compressor, a combustion chamber, a gas turbine and a generator, and is used for generating power by burning natural gas;

the recovery module comprises a waste heat boiler, a first regulating valve, a load adjusting boiler, a steam distributing cylinder and a flow meter, wherein steam outlets of the waste heat boiler and the load adjusting boiler are respectively connected with a steam inlet of the steam distributing cylinder, a flue gas inlet of the waste heat boiler is connected with a flue gas outlet of the gas turbine, a gas inlet of the load adjusting boiler is used for being connected with a natural gas pipe network, the first regulating valve is installed at a gas inlet of the load adjusting boiler, the flow meter is installed at a steam outlet of the steam distributing cylinder, and the first regulating valve can respond to the flow meter to adjust flow;

the output module is connected with the steam outlet of the steam distributing cylinder and is used for refrigerating and/or heating.

2. A distributed combined cooling heating and power supply station as claimed in claim 1, wherein: the waste heat boiler comprises an afterburning chamber, a first burner is installed in the afterburning chamber, and a gas inlet of the afterburning chamber is used for being connected with the natural gas pipe network.

3. A distributed combined cooling, heating and power supply station as claimed in claim 2, wherein: the first burner uses a low-nitrogen burner.

4. A distributed combined cooling, heating and power supply station as claimed in claim 2, wherein: the recovery module comprises a second regulating valve, and the second regulating valve is installed at a fuel gas inlet of the afterburning chamber.

5. A distributed combined cooling heating and power supply station as claimed in claim 1, wherein: the waste heat boiler comprises a first return passage and a second return passage.

6. A distributed combined cooling heating and power supply station as claimed in claim 1, wherein: the output module comprises an absorption refrigerator, and a steam inlet of the absorption refrigerator is connected with a steam outlet of the gas-distributing cylinder.

7. The distributed combined cooling heating and power supply station of claim 6, wherein: the output module comprises a heat exchanger, a steam inlet of the heat exchanger is connected with a steam outlet of the steam-distributing cylinder, and a hot water outlet of the heat exchanger is used for being connected with a heating device.

8. The distributed combined cooling heating and power supply station as set forth in claim 7, wherein: the heat exchanger is in heat exchange connection with the absorption refrigerator to serve as a heat source of the absorption refrigerator.

9. The distributed combined cooling heating and power supply station as set forth in claim 8, wherein: the output module comprises a heat supply pipeline, and the heat supply pipeline is used for outputting steam.

10. A distributed combined cooling heating and power supply station as claimed in claim 1, wherein: the power generation module includes temperature sensor and third governing valve, the third governing valve is installed the gas entry of combustion chamber, temperature sensor installs on the combustion chamber, the third governing valve can respond to temperature sensor regulation flow.