CN215057706U

CN215057706U - Cooling equipment

Info

Publication number: CN215057706U
Application number: CN202121164776.9U
Authority: CN
Inventors: 李鑫; 冯宁; 王文书
Original assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Current assignee: Yantai Jereh Petroleum Equipment and Technologies Co Ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2021-12-07
Anticipated expiration: 2031-05-27

Abstract

The application provides a cooling arrangement, relates to mechanical technical field, solves the technical problem that the mode of cooling generating set needs to consume the extra energy at present. The cooling equipment comprises a first medium input pipeline, a generator set, a first medium output pipeline and a boiler; wherein the generator set has a cooling medium inlet and a cooling medium outlet; the outlet of the first medium input pipeline is communicated with the cooling medium inlet of the generator set, the cooling medium outlet of the generator set is communicated with the inlet of the first medium output pipeline, and the outlet of the first medium output pipeline is communicated with the cooling medium inlet of the boiler. The application provides a cooling arrangement is used for cooling generating set.

Description

Cooling equipment

Technical Field

The application relates to the technical field of machinery, in particular to cooling equipment.

Background

The invention and application of electric power have raised the industrial climax, and the generating set used for generating electric power has also been widely used in various fields. Wherein, generating set can produce a large amount of heats when the electricity generation, if not in time cool off generating set, lead to generating set overheated and damage easily.

Cooling the gensets is currently typically done by providing cold energy via cold water, which consumes additional energy as it is provided in addition to the water that is delivered to the boiler.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cooling device can be used for solving the technical problem that the mode of cooling generating set needs to consume the extra energy at present.

The embodiment of the application provides cooling equipment, which comprises a first medium input pipeline, a generator set, a first medium output pipeline and a boiler;

wherein the generator set has a cooling medium inlet and a cooling medium outlet;

the outlet of the first medium input pipeline is communicated with the cooling medium inlet of the generator set, the cooling medium outlet of the generator set is communicated with the inlet of the first medium output pipeline, and the outlet of the first medium output pipeline is communicated with the cooling medium inlet of the boiler.

Optionally, in one embodiment, the cooling apparatus further comprises a second medium input line, a first heat exchanger, and a second medium output line;

the first heat exchanger is provided with a cooling medium inlet, a cooling medium outlet, a lubricating oil inlet and a lubricating oil outlet, and the generator set is also provided with a lubricating oil inlet and a lubricating oil outlet;

an outlet of the second medium input pipeline is communicated with a cooling medium inlet of the first heat exchanger, a cooling medium outlet of the first heat exchanger is communicated with an inlet of the second medium output pipeline, and an outlet of the second medium output pipeline is communicated with a first position of the first medium output pipeline;

and a lubricating oil outlet of the first heat exchanger is communicated with a lubricating oil inlet of the generator set, and a lubricating oil outlet of the generator set is communicated with a lubricating oil inlet of the first heat exchanger.

Optionally, in one embodiment, the generator set comprises a generator, a gearbox, and a gas turbine;

wherein the generator has a cooling medium inlet, a cooling medium outlet, a lubricating oil inlet and a lubricating oil outlet;

the gear box is provided with a cooling medium inlet, a cooling medium outlet, a lubricating oil inlet and a lubricating oil outlet;

the gas turbine has a cooling medium inlet, a cooling medium outlet, a lubricating oil inlet and a lubricating oil outlet;

the generator is connected with the gas turbine through the gear box;

an outlet of the first medium input pipeline is communicated with at least one of a cooling medium inlet of the generator, a cooling medium inlet of the gearbox and a cooling medium inlet of the gas turbine;

at least one of the lubricant outlet of the generator, the lubricant outlet of the gearbox, and the lubricant outlet of the gas turbine is in communication with the lubricant inlet of the first heat exchanger.

Optionally, in one embodiment, the outlet of the first medium input line is in communication with the cooling medium inlet of the generator; and the lubricating oil outlet of the generator, the lubricating oil outlet of the gearbox and the lubricating oil outlet of the gas turbine are communicated with the lubricating oil inlet of the first heat exchanger.

Optionally, in one embodiment, the cooling apparatus further comprises a third medium input line, a second heat exchanger, and a third medium output line;

the second heat exchanger has a cooling medium inlet, a cooling medium outlet, an air inlet and an air outlet;

an outlet of the third medium input pipeline is communicated with a cooling medium inlet of the second heat exchanger, a cooling medium outlet of the second heat exchanger is communicated with an inlet of the third medium output pipeline, and an outlet of the third medium output pipeline is communicated with a second position of the first medium output pipeline;

the air outlet of the second heat exchanger is communicated with the air inlet of the gas turbine.

Optionally, in one embodiment, the cooling apparatus further comprises a water replenishing device, a steam turbine and a condenser;

the steam outlet of the boiler is communicated with the steam inlet of the steam turbine, and the steam outlet of the steam turbine is communicated with the inlet of the condenser;

an inlet of the first medium input pipeline is communicated with an outlet of the water replenishing device, or an inlet of the first medium input pipeline is communicated with an outlet of the condenser;

an inlet of the second medium input pipeline is communicated with an outlet of the water replenishing device, or an inlet of the second medium input pipeline is communicated with an outlet of the condenser;

and an inlet of the third medium input pipeline is communicated with an outlet of the water supplementing device, or an inlet of the third medium input pipeline is communicated with an outlet of the condenser.

Optionally, in an embodiment, the inlet of the first medium input pipeline, the inlet of the second medium input pipeline and the inlet of the third medium input pipeline are all communicated with the outlet of the water replenishing device; alternatively, the first and second electrodes may be,

and the inlet of the first medium input pipeline, the inlet of the second medium input pipeline and the inlet of the third medium input pipeline are communicated with the outlet of the condenser.

Optionally, in an embodiment, the cooling apparatus further includes a deaerator, and the deaerator is disposed at a third position of the first medium output pipe, and the first position and the second position are located upstream of the third position.

Optionally, in an embodiment, the cooling apparatus further comprises a heater disposed at a fourth location of the first medium output line, the fourth location being downstream of the third location.

Optionally, in an embodiment, the boiler is a waste heat boiler, and the tail gas outlet of the gas turbine is communicated with the gas inlet of the waste heat boiler.

The utility model discloses the beneficial effect who brings as follows:

by adopting the cooling equipment provided by the embodiment of the application, the cooling equipment comprises a first medium input pipeline, a generator set, a first medium output pipeline and a boiler; wherein the generator set has a cooling medium inlet and a cooling medium outlet; an outlet of the first medium input pipeline is communicated with a cooling medium inlet of the generator set, a cooling medium outlet of the generator set is communicated with an inlet of the first medium output pipeline, and an outlet of the first medium output pipeline is communicated with a cooling medium inlet of the boiler; the generator set is introduced to the pipeline for conveying the medium to the boiler, the medium flows through the generator set, the generator set can be cooled by utilizing cold energy of the medium to be conveyed to the boiler, other energy sources are not required to be consumed for cooling the generator set, and therefore energy is saved. Meanwhile, the medium conveyed to the boiler can also collect heat emitted by the generator set, so that the boiler can reduce heat consumption in subsequent operation.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:

fig. 1 is a schematic structural diagram of a cooling apparatus according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application;

FIG. 9 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of another cooling apparatus provided in an embodiment of the present application.

Reference numerals:

10-a cooling device; 101-first medium input pipeline; 102-a generator set; 1021-a generator; 1022-a gearbox; 1023-gas turbine; 103-first medium output pipeline; 104-a boiler; 105-second medium input pipeline; 106 — a first heat exchanger; 107-second medium output line; 108-third medium input pipeline; 109 — a second heat exchanger; 110-third medium output line; 111-water replenishing device; 112-a steam turbine; 113-a condenser; 114-a deaerator; 115-heaters.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present application, 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," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As described in the background of the present application, the current way of cooling a generator set requires the consumption of additional energy, and in this regard, the present embodiment provides a cooling device 10 for solving the above technical problems. As shown in fig. 1, the cooling device 10 includes a first medium input line 101, a generator set 102, a first medium output line 103, and a boiler 104; the generator set 102 has a cooling medium inlet and a cooling medium outlet; an outlet of the first medium input pipeline 101 is communicated with a cooling medium inlet of the generator set 102, a cooling medium outlet of the generator set 102 is communicated with an inlet of the first medium output pipeline 103, and an outlet of the first medium output pipeline 103 is communicated with a cooling medium inlet of the boiler 104.

Therein, a first medium inlet line 101 and a first medium outlet line 103 can be used for feeding medium to the boiler 104 for providing the boiler 104 with the required medium. The medium can be a gaseous substance, a liquid substance or a gas-liquid mixture; specifically, the medium may be air (wind), water, lubricating oil, or the like. In practice, for better cooling of the genset 102, in a preferred embodiment, the medium is water; accordingly, the first medium supply line 101 is a first water supply line and the first medium discharge line 103 is a first water discharge line. In the case that the media conveyed by the first media input line 101 and the first media output line 103 are water, the water may be, specifically, make-up water or condensate water.

The boiler 104 may heat the water entering it to hot water or steam at a temperature and pressure. The hot water or steam may be further directed from the boiler 104 for use, such as power generation.

The generator set 102 may be a package for generating electricity based on energy conversion, and generally includes a generator capable of converting mechanical energy into electrical energy and a power plant for providing mechanical energy to the generator. The power plant may be a gas turbine, a water turbine, an internal combustion engine, a steam turbine, etc., depending on the operating principle or the energy source utilized. During operation of the generator set 102, energy conversion occurs, and during the energy conversion, a part of energy is dissipated in the form of heat. For example, when the generator in the generator set 102 converts mechanical energy into electrical energy, the mechanical energy cannot be converted into electrical energy by one hundred percent, and a part of the mechanical energy is dissipated as heat. That is, the genset 102 may generate heat during operation, and the heat build-up may easily cause the genset 102 to overheat and damage.

By communicating the outlet of the first medium input pipeline 101 with the cooling medium inlet of the generator set 102 and communicating the cooling medium outlet of the generator set 102 with the inlet of the first medium output pipeline 103, the generator set 102 can be cooled by the medium which is to be delivered to the boiler 104, thereby avoiding overheating of the generator set 102.

It can be understood that with the cooling device 10 provided in the embodiment of the present application, the outlet of the first medium input pipeline 101 is communicated with the cooling medium inlet of the generator set 102, the cooling medium outlet of the generator set 102 is communicated with the inlet of the first medium output pipeline 103, and the outlet of the first medium output pipeline 103 is communicated with the cooling medium inlet of the boiler 104; by introducing the generator set 102 into a pipeline for conveying a medium to the boiler 104, the medium flows through the generator set 102, so that the medium to be fed into the boiler 104 is firstly introduced into the generator set 102 to cool the generator set 102, and the cold energy of the medium to be fed into the boiler 104 is utilized to cool the generator set 102, so that the use of extra energy for cooling the generator set 102 can be avoided, and the energy is saved.

On the other hand, the current way of cooling the generator set also occupies additional equipment resources. By the cooling device 10 provided by the embodiment of the application, the generator set 102 can be cooled by directly utilizing the cold energy of the medium to be sent into the boiler 104, and further, an additional device for cooling the generator set 102 is not required, so that the device resource is saved. Meanwhile, with the cooling device 10 provided in the embodiment of the present application, the medium to be fed into the boiler 104 cools the generator set 102 first, and accordingly, the generator set 102 transfers heat to the medium to be fed into the boiler 104; then, the medium to be delivered to the boiler 104 may collect the heat emitted by the genset 102 such that the boiler 104 may reduce heat consumption during subsequent operations. For example, when the medium to be delivered is water, the water to be delivered into the boiler 104 absorbs the heat emitted by the generator set 102, and is preheated and then delivered into the boiler 104, so that the boiler 104 can reduce the heat consumption when heating water subsequently.

During operation of the generator set 102, the lubricating oil is required to lubricate the parts therein and to remove heat generated by the parts, so as to avoid damage to the parts due to overheating. Generally, the lubricating oil circulates between the lubricating oil tank and the generator set 102, and the lubricating oil is delivered from the lubricating oil tank to the generator set 102, and after lubricating and removing heat from various parts in the generator set 102, the lubricating oil returns to the lubricating oil tank from the generator set 102, and then the lubricating oil circulates next time. In order to ensure that the lubricating oil can smoothly absorb heat to take away the heat of the parts during each circulation, the lubricating oil before entering the generator set 102 needs to be cooled. In the related art, cooling is usually performed by other cooling media capable of providing cold energy, for example, by air, sea water, etc., and accordingly, a cooling facility associated with the cooling media is also required. It can be seen that the current way of cooling the lubricating oil also consumes additional energy and equipment resources. In view of the above, in one embodiment, the cooling device 10 provided in the embodiment of the present application further includes a second medium input pipeline 105, a first heat exchanger 106, and a second medium output pipeline 107; as shown in fig. 2, the first heat exchanger 106 has a cooling medium inlet, a cooling medium outlet, a lubricating oil inlet and a lubricating oil outlet, and the generator set 102 also has a lubricating oil inlet and a lubricating oil outlet; the outlet of the second medium input pipeline 105 is communicated with the cooling medium inlet of the first heat exchanger 106, the cooling medium outlet of the first heat exchanger 106 is communicated with the inlet of the second medium output pipeline 107, and the outlet of the second medium output pipeline 107 is communicated with the first position A of the first medium output pipeline 103; the lubricant outlet of the first heat exchanger 106 is in communication with the lubricant inlet of the genset 102, and the lubricant outlet of the genset 102 is in communication with the lubricant inlet of the first heat exchanger 106.

Therein, a second medium inlet line 105 and a second medium outlet line 107 can be used for feeding medium to the boiler 104 in order to provide the boiler 104 with the required medium. The medium can be a gaseous substance, a liquid substance or a gas-liquid mixture; specifically, the medium may be air (wind), water, lubricating oil, or the like. In practice, for better cooling of the lubricating oil, in a preferred embodiment, the medium is water; accordingly, the second medium supply line 105 is a second water supply line and the second medium discharge line 107 is a second water discharge line. In the case that the media supplied by the second media supply line 105 and the second media discharge line 107 are water, the water may be, in particular, make-up water or condensate water.

The first heat exchanger 106 may be configured to exchange heat between the medium to be delivered to the boiler 104 and the lubricating oil, and a specific heat exchange process may be that the lubricating oil absorbing heat flows out from a lubricating oil outlet of the generator set 102, enters the first heat exchanger 106 from a lubricating oil inlet of the first heat exchanger 106, the medium delivered by the second medium input pipeline 105 enters the first heat exchanger 106 from a cooling medium inlet of the first heat exchanger 106, and there is a temperature difference between the lubricating oil absorbing heat and the medium; in the first heat exchanger 106, the medium transfers cold energy to lubricating oil, and the lubricating oil flows out from a lubricating oil outlet of the first heat exchanger 106 after being cooled and enters the generator set 102 again for next lubrication and heat absorption; the medium is heated and flows out of the outlet of the first heat exchanger 106 for cooling medium and further to the boiler 104. The first heat exchanger 106 may be a dividing wall type heat exchanger, and specifically may be a shell-and-tube heat exchanger, a double-tube heat exchanger, or the like. It should be understood that the above-mentioned type of the first heat exchanger 106 is only an example, and does not represent a limitation to the type of the first heat exchanger 106, and in practical applications, the type of the first heat exchanger 106 may be selected according to actual needs.

It should be noted that the inlet of the second medium input pipeline 105 may be communicated with the first target position of the first medium input pipeline 101, or the second medium input pipeline 105 and the first medium input pipeline 101 may be independent pipelines, in which case the inlet of the second medium input pipeline 105 and the inlet of the first medium input pipeline 101 may be respectively connected to different medium sources.

It can be understood that, by the above scheme, the outlet of the second medium input pipeline 105 is communicated with the cooling medium inlet of the first heat exchanger 106, the lubricating oil outlet of the generator set 102 is communicated with the lubricating oil inlet of the first heat exchanger 106, the medium and the lubricating oil are made to flow through the first heat exchanger 106 by introducing the first heat exchanger 106 to the pipeline for conveying the medium to the boiler 104, so that the medium to be conveyed to the boiler 104 is firstly introduced into the first heat exchanger 106 to cool the lubricating oil absorbing heat, and the cooling energy of the medium to be conveyed to the boiler 104 is utilized to cool the lubricating oil, thereby avoiding the use of additional energy to cool the lubricating oil, and saving energy and equipment resources.

The gas turbine has the advantages of large output power, high energy density, low noise, low emission and the like, and has a wide application prospect in various fields. In view of this, in the cooling apparatus 10 of the embodiment of the present application, the generator set 102 includes a generator 1021, a gear box 1022, and a gas turbine 1023; the generator 1021 is provided with a cooling medium inlet, a cooling medium outlet, a lubricating oil inlet and a lubricating oil outlet; the gear case 1022 has a cooling medium inlet, a cooling medium outlet, a lubricating oil inlet, and a lubricating oil outlet; the gas turbine 1023 has a cooling medium inlet, a cooling medium outlet, a lubricating oil inlet, and a lubricating oil outlet; the generator 1021 is coupled to the gas turbine 1023 through the gearbox 1022; an outlet of the first medium input line 101 communicates with at least one of a cooling medium inlet of the generator 1021, a cooling medium inlet of the gear box 1022, and a cooling medium inlet of the gas turbine 1023; at least one of the lubricant outlet of the generator 1021, the lubricant outlet of the gear box 1022, and the lubricant outlet of the gas turbine 1023 communicates with the lubricant inlet of the first heat exchanger 106.

The generator 1021, the gear box 1022 and the gas turbine 1023 are connected in sequence to form a gas turbine generator set. The gas turbine 1023 may convert chemical energy into mechanical energy; specifically, the gas turbine 1023 includes a compressor for continuously sucking air and compressing it to supply to the combustion chamber, a combustion chamber in which the compressed air and injected fuel are combusted into high-temperature gas, and a turbine connected in sequence, the high-temperature gas entering the turbine to perform expansion work, thereby converting internal energy into mechanical energy. Further, the gas turbine 1023 transmits the mechanical energy to the generator 1021 through the gear box 1022, and the generator 1021 generates electricity by using the mechanical energy. The gearbox 1022 functions to match the rotational speed and transmit torque between the gas turbine 1023 and the generator 1021, so that the generator 1021 can generate electricity by using mechanical energy smoothly. The gear box 1022 may generally be composed of a transmission part (gear or worm), a shaft, a bearing, a case, and the like.

It is to be noted that the outlet of the first medium input pipeline 101 is communicated with at least one of the cooling medium inlet of the generator 1021, the cooling medium inlet of the gear box 1022, and the cooling medium inlet of the gas turbine 1023, and specifically, may be:

in one embodiment, the outlet of the first medium input line 101 communicates with any one of the cooling medium inlet of the generator 1021, the cooling medium inlet of the gear box 1022, and the cooling medium inlet of the gas turbine 1023. That is, the medium to be delivered to the boiler 104 may be used only for cooling any one of the generator 1021, the gear box 1022, and the gas turbine 1023.

In another embodiment, the outlet of the first medium input line 101 is communicated with any two of the cooling medium inlet of the generator 1021, the cooling medium inlet of the gear box 1022, and the cooling medium inlet of the gas turbine 1023. That is, the medium to be delivered to the boiler 104 may be used to cool any two devices of the generator 1021, the gear box 1022, and the gas turbine 1023.

In yet another embodiment, the outlet of the first medium input pipeline 101 is communicated with the cooling medium inlet of the generator 1021, the cooling medium inlet of the gear box 1022 and the cooling medium inlet of the gas turbine 1023. That is, the medium to be delivered to the boiler 104 may be used to cool the generator 1021, the gearbox 1022 and the gas turbine 1023.

In practical applications, because the internal structures of the generator 1021, the gearbox 1022 and the gas turbine 1023 are different and have different characteristics, some of them may be suitable for introducing, i.e., cooling, the medium (e.g., water) to be delivered to the boiler 104, and some of them may be unsuitable for introducing, i.e., cooling, the medium to be delivered to the boiler 104. In a preferred embodiment, the outlet of the first medium supply line 101 is therefore connected to the coolant inlet of the generator 1021, as shown in fig. 3. That is, even if the medium to be delivered to the boiler 104 may be used only for cooling the generator 1021 and not for cooling the gear box 1022 and the gas turbine 1023, accordingly, the generator 1021 may have a cooling medium inlet and a cooling medium inlet, and a pipeline for circulating the medium may be arranged inside the generator 1021 to absorb heat of the medium and take away heat of the generator 1021; the gear box 1022 and the gas turbine 1023 may not have a cooling medium inlet and a cooling medium inlet, and may not have a pipe for circulating the medium inside, so as to be more compatible with the internal structure of the gear box 1022 and the gas turbine 1023.

Meanwhile, it is worth mentioning that at least one of the lubricant outlet of the generator 1021, the lubricant outlet of the gear box 1022, and the lubricant outlet of the gas turbine 1023 is communicated with the lubricant inlet of the first heat exchanger 106, specifically, it may be:

in one embodiment, any one of the lubricant outlet of the generator 1021, the lubricant outlet of the gear box 1022, and the lubricant outlet of the gas turbine 1023 communicates with the lubricant inlet of the first heat exchanger 106. That is, the medium to be delivered to the boiler 104 may be used only for cooling the lubricating oil flowing out from any one of the generator 1021, the gear box 1022, and the gas turbine 1023. Taking the example that the medium sent to the boiler 104 is only used for cooling the lubricating oil flowing out from the generator 1021, in the first heat exchanger 106, after the medium sent to the boiler 104 cools the lubricating oil flowing out from the generator 1021, the heated medium flows out from the cooling medium outlet of the first heat exchanger 106 and further flows to the boiler 104, and the cooled lubricating oil flows out from the lubricating oil outlet of the first heat exchanger 106 and returns to the generator 1021 again, wherein after the cooled lubricating oil flows out from the lubricating oil outlet of the first heat exchanger 106, the cooled lubricating oil may first enter the lubricating oil tank to be subjected to a treatment such as impurity filtration and then return to the generator 1021 again. Meanwhile, after the lubricating oil in the gear box 1022 absorbs heat, the lubricating oil directly flows into the lubricating oil tank from the lubricating oil outlet of the gear box 1022, and then flows into the gear box 1022 again from the lubricating oil tank; after absorbing heat, the lubricating oil in the gas turbine 1023 flows directly from the lubricating oil outlet of the gas turbine 1023 into the lubricating oil tank, and then flows from the lubricating oil tank into the gas turbine 1023 again.

In another embodiment, any two of the lubricant outlet of the generator 1021, the lubricant outlet of the gear box 1022, and the lubricant outlet of the gas turbine 1023 communicate with the lubricant inlet of the first heat exchanger 106. That is, the medium to be delivered to the boiler 104 may be used to cool the lubricating oil flowing out from any two devices among the generator 1021, the gear box 1022, and the gas turbine 1023.

In practical applications, it is more preferable that the lubricant outlet of the generator 1021, the lubricant outlet of the gearbox 1022, and the lubricant outlet of the gas turbine 1023 are all communicated with the lubricant inlet of the first heat exchanger 106, as shown in fig. 3. That is, the medium to be delivered to the boiler 104 may be used to cool the lubricating oil flowing out of the generator 1021, the gear box 1022 and the gas turbine 1023.

Further, in combination with the above-mentioned embodiments, in consideration of the features and differences of the internal structures of the generator 1021, the gear box 1022 and the gas turbine 1023, and the effective cooling of the generator 1021, the gear box 1022 and the gas turbine 1023, in a preferred embodiment, the outlet of the first medium input pipeline 101 is communicated with the cooling medium inlet of the generator 1021, and the lubricating oil outlet of the generator 1021, the lubricating oil outlet of the gear box 1022 and the lubricating oil outlet of the gas turbine 1023 are communicated with the lubricating oil inlet of the first heat exchanger 106, as shown in fig. 3.

In the case where the lubricant oil outlet of the generator 1021, the lubricant oil outlet of the gear box 1022, and the lubricant oil outlet of the gas turbine 1023 all communicate with the lubricant oil inlet of the first heat exchanger 106, the first heat exchanger 106 may comprise only one heat exchanger, or the first heat exchanger 106 may be a heat exchanger bank comprising a plurality of heat exchangers.

When the first heat exchanger 106 comprises only one heat exchanger, the lubricant outlet of the generator 1021, the lubricant outlet of the gearbox 1022 and the lubricant outlet of the gas turbine 1023 may all communicate with the lubricant inlet of the same heat exchanger.

In practice, the lubricating oil in the generator 1021, gearbox 1022 and gas turbine 1023 may be different types of lubricating oil, and thus, in a preferred embodiment, the first heat exchanger 106 comprises three heat exchangers, heat exchanger X, heat exchanger Y and heat exchanger Z; an outlet of the second medium input pipeline 105 is respectively communicated with a cooling medium inlet of the heat exchanger X, a cooling medium inlet of the heat exchanger Y and a cooling medium inlet of the heat exchanger Z; a cooling medium outlet of the heat exchanger X, a cooling medium outlet of the heat exchanger Y and a cooling medium outlet of the heat exchanger Z are respectively communicated with an inlet of the second medium output pipeline 107; a lubricating oil outlet of the heat exchanger X is communicated with a lubricating oil inlet of the generator 1021, and a lubricating oil outlet of the generator 1021 is communicated with a lubricating oil inlet of the heat exchanger X; a lubricating oil outlet of the heat exchanger Y is communicated with a lubricating oil inlet of the gear box 1022, and a lubricating oil outlet of the gear box 1022 is communicated with a lubricating oil inlet of the heat exchanger Y; the lubricating oil outlet of the heat exchanger Z is communicated with the lubricating oil inlet of the gas turbine 1023, and the lubricating oil outlet of the gas turbine 1023 is communicated with the lubricating oil inlet of the heat exchanger Z.

It can be understood that, by the above-mentioned solution, at least one of the generator 1021, the gear box 1022 and the gas turbine 1023 can be cooled by the medium to be delivered to the boiler 104, and the lubricating oil flowing out from at least one of the generator 1021, the gear box 1022 and the gas turbine 1023 can be cooled by the medium to be delivered to the boiler 104, so that the cooling by using extra energy can be avoided, and energy and equipment resources can be saved.

In addition, the boiler 104 in the embodiment of the present application may be a conventional boiler that burns various fossil fuels and biofuels to generate steam or hot water, or may be a boiler that generates steam or hot water by using waste heat generated by other heat source devices. In order to realize energy recycling, in one embodiment, in the cooling apparatus 10 provided in the embodiment of the present application, the boiler 104 is a waste heat boiler, and the exhaust gas outlet of the gas turbine 1023 is communicated with the gas inlet of the waste heat boiler, as shown in fig. 4.

It can be understood that, through the above scheme, with the gas outlet of gas turbine 1023 and exhaust-heat boiler's gas inlet intercommunication, exhaust-heat boiler can utilize the waste heat in gas turbine 1023 tail gas to add hot water to realize the recycle of waste heat in gas turbine 1023 tail gas.

When the genset 102 is a gas turbine genset, the gas turbine 1023 therein uses the continuously flowing gas as a working medium to drive the impeller to rotate at a high speed, and air needs to be continuously sucked from the outside, and if the air temperature is high and the air density is correspondingly reduced, the mass flow of the air introduced into the gas turbine 1023 is correspondingly reduced, so that the output power of the gas turbine 1023 is reduced. Therefore, in one embodiment, the cooling device 10 provided by the embodiment of the present application further includes a third medium input line 108, a second heat exchanger 109, and a third medium output line 110; as shown in fig. 5, the second heat exchanger 109 has a cooling medium inlet, a cooling medium outlet, an air inlet, and an air outlet; the outlet of the third medium input pipeline 108 is communicated with the cooling medium inlet of the second heat exchanger 109, the cooling medium outlet of the second heat exchanger 109 is communicated with the inlet of the third medium output pipeline 110, and the outlet of the third medium output pipeline 110 is communicated with the second position B of the first medium output pipeline 101; the air outlet of the second heat exchanger 109 communicates with the air inlet of the gas turbine 1023.

Therein, a third medium inlet line 108 and a third medium outlet line 110 can be used for feeding medium to the boiler 104 in order to provide the required medium to the boiler 104. The medium can be a gaseous substance, a liquid substance or a gas-liquid mixture; specifically, the medium may be air (wind), water, lubricating oil, or the like. In practice, for better cooling of the air to be passed into the gas turbine 1023, in a preferred embodiment the medium is water; correspondingly, the third medium supply line 108 is a third water supply line and the third medium discharge line 110 is a third water discharge line. In the case that the media conveyed by the third media input line 108 and the third media output line 110 are water, the water may be, specifically, make-up water or condensate water.

The second heat exchanger 109 can be used for exchanging heat between the medium to be fed to the boiler 104 and the air, and the specific heat exchanging process can be that the air enters the second heat exchanger 109 from an air inlet of the second heat exchanger 109, and the medium fed by the third medium input pipeline 108 enters the second heat exchanger 109 from a cooling medium inlet of the second heat exchanger 109; a temperature difference exists between the air and the medium, the medium transfers cold energy to the air in the second heat exchanger 109, and the air flows out from an air outlet of the second heat exchanger 109 after being cooled and then enters the gas turbine 1023; the medium is heated and then flows out from the outlet of the second heat exchanger 109 to the boiler 104. The second heat exchanger 109 may be a dividing wall type heat exchanger, and specifically may be a shell-and-tube type heat exchanger, a double-tube type heat exchanger, or the like. It should be understood that the above-mentioned type of the second heat exchanger 109 is only an example, and does not represent a limitation to the type of the second heat exchanger 109, and in practical applications, the type of the second heat exchanger 109 may be selected according to actual needs.

It should be noted that the inlet of the third medium supply line 108 can be connected to a second target position of the first medium supply line 101 or the second medium supply line 105, or the third medium supply line 108, the second medium supply line 105 and the first medium supply line 101 can be independent of one another.

It can be understood that, by the above solution, the outlet of the third medium input pipeline 108 is communicated with the cooling medium inlet of the second heat exchanger 109, and the air outlet of the second heat exchanger 109 is communicated with the air inlet of the gas turbine 1023, so that the medium to be fed into the boiler 104 is firstly fed into the second heat exchanger 109, and the air to be fed into the gas turbine 1023 is cooled, thereby the output power of the gas turbine 1043 can be increased, and at the same time, the use of additional energy to cool the air to be fed into the gas turbine 1023 can be avoided, and energy and equipment resources are saved.

In the case that the media conveyed by the first media input pipeline 101, the second media input pipeline 105, and the third media input pipeline 108 are all water, further, in an embodiment, the cooling apparatus 10 provided in the embodiment of the present application further includes a water replenishing device 111, a steam turbine 112, and a condenser 113; a steam outlet of the boiler 104 is communicated with a steam inlet of the steam turbine 112, and a steam outlet of the steam turbine 112 is communicated with an inlet of the condenser 113; an inlet of the first medium input pipeline 101 is communicated with an outlet of the water replenishing device 111, or an inlet of the first medium input pipeline 101 is communicated with an outlet of the condenser 113; an inlet of the second medium input pipeline 105 is communicated with an outlet of the water replenishing device 111, or an inlet of the second medium input pipeline is communicated with an outlet of the condenser 113; the inlet of the third medium input pipeline 108 is communicated with the outlet of the water replenishing device 111, or the inlet of the third medium input pipeline is communicated with the outlet of the condenser 113.

Among them, the turbine 112 may also be referred to as a steam turbine engine, which is an external combustion rotary machine capable of converting steam heat energy into mechanical work. After the boiler 104 heats the water to obtain steam, the steam enters the turbine 112 and passes through a series of annularly arranged nozzles and moving blades in sequence, and the heat energy of the steam can be converted into mechanical energy of the rotation of the rotor of the turbine 112. The turbine 112 may further be connected to another generator to generate electricity by using the mechanical energy output from the turbine 112.

The condenser 113 may be used to condense the steam discharged after the turbine 112 has performed work into liquid.

In practical applications, the boiler feed water to be delivered to the boiler 104 may be divided into two types, one type is condensate water obtained by condensing through the condenser 113 after the turbine 112 has done work, and the condensate water may be circularly delivered to the boiler 104 to provide water for the boiler; during this cycle there is water consumption and therefore there is a need to add make-up water (another boiler feed water) to the boiler 104, the make-up water device 111 may be used to provide make-up water, and the make-up water device 111 may specifically be a source of water that can be used to provide make-up water.

Then, the inlet of the first medium input pipeline 101 is communicated with the outlet of the water replenishing device 111, or the inlet of the first medium input pipeline 101 is communicated with the outlet of the condenser 113; the inlet of the second medium input pipeline 105 is communicated with the outlet of the water replenishing device 111, or the inlet of the second medium input pipeline is communicated with the outlet of the condenser 113; the inlet of the third medium input pipeline 108 is communicated with the outlet of the water replenishing device 111, or the inlet of the third medium input pipeline is communicated with the outlet of the condenser 113, and it can be understood that the first medium input pipeline 101 can convey the condensed return water or the supplemented water, the second medium input pipeline 105 can convey the condensed return water or the supplemented water, and the third medium input pipeline 108 can convey the condensed return water or the supplemented water. For example, as shown in fig. 6, the inlet of the first medium input line 101 communicates with the outlet of the water replenishing device 111, the inlet of the second medium input line 105 communicates with the outlet of the condenser 113, and the inlet of the third medium input line 108 communicates with the outlet of the condenser 113. That is, the first medium input pipeline 101 conveys make-up water, and the generator set 102 is cooled by the make-up water; the second medium input pipeline 105 conveys condensed backwater, and the lubricating oil is cooled by the condensed backwater; the third medium supply line 108 supplies return condensate, which is used to cool the air entering the gas turbine 1023.

In order to simplify the piping arrangement, in a more preferred mode, the inlet of the first medium input pipeline 101, the inlet of the second medium input pipeline 105 and the inlet of the third medium input pipeline 108 are all communicated with the outlet of the water replenishing device 111, as shown in fig. 7; that is, the first medium input pipeline 101, the second medium input pipeline 105 and the third medium input pipeline 108 all transmit make-up water, the generator set 102, the lubricating oil and the air about to enter the gas turbine 1023 are cooled by the make-up water, and after the cooling is finished, the make-up water is continuously transmitted to the boiler 104; meanwhile, the condensed backwater can be directly conveyed to the boiler 104 from the outlet of the condenser 113 to provide water for the boiler 104. Alternatively, the inlet of the first medium input pipeline 105, the inlet of the second medium input pipeline 105 and the inlet of the third medium input pipeline 108 are all communicated with the outlet of the condenser 113, as shown in fig. 8. Namely, the first medium input pipeline 101, the second medium input pipeline 105 and the third medium input pipeline 108 all transmit condensate water, the condensate water is used for cooling the generator set 102, the lubricating oil and the air about to enter the gas turbine 1023, and after cooling is completed, the condensate water is continuously transmitted to the boiler 104; meanwhile, the make-up water can be directly delivered to the boiler 104 from the outlet of the make-up water device 111 to supply water to the boiler 104.

It can be appreciated that by the above scheme, the condensate return water or the make-up water to be delivered to the boiler 104 can be utilized to cool the generator set 102, the lubricating oil and the air to be introduced into the gas turbine 1023, thereby avoiding the use of additional energy for cooling and saving energy and equipment resources.

When the boiler feed water is delivered to the boiler 104, oxygen in the boiler feed water may cause corrosion to the boiler 104 components, and corrosive substances may deposit or adhere to the walls and heated surfaces of the boiler 104, affecting heat transfer. Therefore, in an implementation manner, the cooling device 10 provided in the embodiment of the present application further includes an oxygen remover 114, as shown in fig. 9, where the oxygen remover 114 is disposed at a third position C of the first medium output pipeline 101, and the first position a and the second position B are located upstream of the third position C.

Among other things, the deaerator 114 may be used to remove oxygen from the boiler feed water. The deaerator 114 is disposed at a third position C of the first medium output pipeline 101, and the first position a and the second position B are located upstream of the third position C, so that oxygen in the boiler feed water conveyed by the first medium output pipeline 101, the second medium output pipeline 107 and the third medium output pipeline 110 can be removed.

It should be noted that the terms "upstream" and "downstream" used in the embodiments of the present application refer to the flow direction of the liquid in the pipeline.

It can be understood that, by adopting the above-mentioned solution, the deaerator 114 is disposed on the first medium output pipeline 101, so as to remove oxygen in the boiler feed water to be delivered to the boiler 104, thereby preventing the boiler 104 components from being corroded by the oxygen in the boiler feed water.

In practice, to further increase the efficiency of the boiler 104 in vaporizing water, the boiler feed water may be further preheated prior to being delivered to the boiler 104. Therefore, in one implementation, the cooling device 10 provided in the embodiment of the present application further includes a heater 115, as shown in fig. 10, where the heater 115 is disposed at a fourth position D of the first medium output pipeline 101, and the fourth position D is located downstream of the third position C.

The heater 115 may include a high pressure heater and/or a low pressure heater.

It can be understood that, by adopting the above-mentioned scheme, the heater 115 is arranged on the first medium output pipeline 101, and after preheating the boiler feed water, the boiler feed water is conveyed to the boiler 104, so that the efficiency of heating and gasifying the water into steam by the boiler 104 can be improved.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The cooling equipment is characterized by comprising a first medium input pipeline, a generator set, a first medium output pipeline and a boiler;

2. The cooling apparatus according to claim 1, characterized in that the cooling apparatus further comprises a second medium input line, a first heat exchanger, and a second medium output line;

3. The cooling apparatus of claim 2, wherein the generator set includes a generator, a gearbox, and a gas turbine;

the generator is connected with the gas turbine through the gear box;

4. The cooling apparatus according to claim 3, wherein an outlet of the first medium input line communicates with a cooling medium inlet of the generator; and the lubricating oil outlet of the generator, the lubricating oil outlet of the gearbox and the lubricating oil outlet of the gas turbine are communicated with the lubricating oil inlet of the first heat exchanger.

5. The cooling apparatus according to claim 3, characterized in that the cooling apparatus further comprises a third medium input line, a second heat exchanger, and a third medium output line;

6. The cooling apparatus according to claim 5, wherein the cooling apparatus further comprises a water replenishing device, a steam turbine, and a condenser;

7. The cooling apparatus according to claim 6, wherein the inlet of the first medium input line, the inlet of the second medium input line, and the inlet of the third medium input line are all in communication with the outlet of the water replenishing means; alternatively, the first and second electrodes may be,

8. The cooling apparatus of claim 5, further comprising a deaerator disposed at a third location in the first media output line, the first location and the second location being upstream of the third location.

9. The cooling apparatus according to claim 8, further comprising a heater provided at a fourth position of the first medium output line, the fourth position being downstream of the third position.

10. The cooling apparatus of claim 3, wherein the boiler is a waste heat boiler, and the exhaust gas outlet of the gas turbine is in communication with a gas inlet of the waste heat boiler.