Matched hot water heating system for steam combined cycle generator set
By designing a supporting hot water heating system in a steam combined cycle generator set, using bromine-cooling unit circulation switching and domestic hot water pumps and other equipment, the problem of hot water waste caused by the reduction of hot water users is solved, and the efficient consumption of hot water and the effective utilization of resources is achieved.
Patent Information
- Application Number
- CN202422139419.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the steam combined cycle unit, as the number of times the cold water is discontinued by the cooling user increases, the number of hot water users in the hot water heater decreases, resulting in high hot water temperature and serious vibration of the pipeline. It is necessary to cool down through outward discharge, resulting in large amount of water production of desalinated water and serious waste of resources.
A supporting hot water heating system for steam combined cycle generator sets is designed, including a refrigeration station, a water tank area, an LNG gasification station, a furnace hot water heater and a metering pry. The installation of two bromine refrigeration units is circulated and switched. Combined with the settings of domestic hot water pumps, heat-unloading water pumps, boosting pumps and return water boosting pumps, efficient consumption of hot water and pressurized water supply.
It effectively avoids the inability to operate the bromine refrigeration unit during maintenance, ensures the refrigeration effect, and by optimizing the hot water system, a large amount of hot water consumption is achieved, reducing the waste of resources caused by low hot water consumption.
Smart Images
Figure CN222951257U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steam combined cycle units, in particular to a matching hot water heating system for a steam combined cycle generator unit. Background Art
[0002] The steam combined cycle unit is an advanced power generation technology that combines the working principles of gas turbines and steam turbines. By efficiently utilizing energy, it achieves a highly efficient and environmentally friendly power generation method. This technology mainly consists of three parts: gas turbines (including compressors, combustion chambers, turbines, control systems and auxiliary systems), waste heat boilers and steam turbines. Among them, the gas turbine generates high-temperature gas by burning fuel, drives the turbine to rotate, and then drives the generator to generate electricity. Subsequently, the high-temperature flue gas discharged by the gas turbine is captured by the waste heat boiler and used to heat the feed water to generate steam. This steam is then sent to the steam turbine to do work and further drive the generator to generate electricity. This technology is called steam combined cycle because it combines the working processes of gas turbines and steam turbines and improves energy utilization efficiency through two-stage conversion. At present, in steam combined cycle units, as the number of cooling users who stop using cold water due to production reasons is large, the number of hot water users of hot water heaters is small, resulting in high hot water temperature and hot water vaporization, and strong vibration of the pipeline. It must be cooled by discharging it to the outside, which will increase the amount of desalted water produced and cause a lot of waste. Utility Model Content
[0003] The utility model aims to provide a supporting hot water heating system for a steam combined cycle generator set.
[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a supporting hot water heating system for a steam combined cycle power generation unit, comprising a refrigeration station, a water tank area, an LNG gasification station, a furnace hot water heater and a metering skid, the refrigeration station comprising a bromide cooling unit, the number of which is two, and an integral plate heat exchanger and a heat source water pump are fixedly installed in sequence from right to left between the tops of the two bromide cooling units through a pipeline, the number of the heat source water pumps is three, the water tank area comprises a hot water tank, the upper end of the left side of the hot water tank is fixedly installed on the upper end of the left side of the integral plate heat exchanger through a pipeline, the LNG gasification station comprises a water bath heater A, the number of which is two, and the tops of the two water bath heaters A are fixedly installed on the top of the bromide cooling unit through a pipeline, the number of the furnace hot water heaters is two, and the bottoms of the two furnace hot water heaters are fixedly installed on the top of the bromide cooling unit through a pipeline, the metering skid comprises a water bath heater B, the number of which is two, and the tops of the two water bath heaters B are fixedly installed on the top of the furnace hot water heater through a pipeline.
[0005] As a preferred solution, the right side of the hot water tank is fixedly installed with a heat source water pump outlet main pipe, a domestic hot water pump and a hot water unloading pump through pipes from top to bottom, and the number of the domestic hot water pump and the number of the hot water unloading pump are both two.
[0006] As a preferred solution, a service building pipeline and an office building pipeline are fixedly installed between the output ends of the two domestic hot water pumps from top to bottom, and a domestic hot water truck is fixedly installed between the output ends of the two hot water unloading pumps via pipelines.
[0007] As a preferred solution, a domestic hot water booster pump is fixedly installed at the lower end of the left side of the integral plate heat exchanger through a pipeline. There are two domestic hot water booster pumps, and a municipal tap water pipeline is fixedly installed between the right sides of the two domestic hot water booster pumps.
[0008] As a preferred solution, a metering skid return water booster pump is fixedly installed between the left sides of the two water bath heaters B through a pipeline, and the right side of the metering skid return water booster pump is fixedly installed on the top of the furnace hot water heater through a pipeline.
[0009] As a preferred solution, a low-pressure recirculation pipeline is provided inside the furnace hot water heater.
[0010] As a preferred solution, a gasification station return water booster pump is fixedly installed between the right sides of the two water bath heaters A through a pipe, the number of the gasification station return water booster pumps is three, and the left sides of the three heat source water pumps are fixedly installed on the right side of the gasification station return water booster pump through a pipe.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. The utility model can switch between two bromide refrigeration units during daily maintenance, effectively avoiding the situation where the bromide refrigeration unit cannot be operated due to maintenance, ensuring that a good refrigeration effect can still be provided during the maintenance, thereby consuming a large amount of hot water. At the same time, the original set temperature of the water bath heater B in the metering skid is 65 degrees Celsius, and the temperature setting value can be 70 degrees Celsius according to the usage situation, and hot water can be supplied to the water bath heater A in the LNG gasification station according to actual conditions, thereby realizing a large amount of hot water consumption and reducing the waste of resources caused by low hot water consumption.
[0013] 2. The utility model, through the provision of a domestic hot water pump, facilitates the extraction of hot water from the hot water tank and supplies it to the service building pipeline and the office building pipeline, effectively improving the consumption of hot water. Through the provision of a hot water unloading pump, hot water from the hot water tank can be extracted and supplied to a domestic hot water truck, further improving the consumption of hot water. Through the provision of a domestic hot water booster pump, it is convenient to pressurize water supply to the interior of the integral plate heat exchanger. Through the provision of a metering skid return water booster pump, it is convenient to pressurize water supply to the water bath heater B. Through the provision of a gasification station return water booster pump, it is convenient to pressurize water supply to the interior of the water bath heater A. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is the principle diagram of the utility model system;
[0015] Figure 2 This is the system diagram of the refrigeration station of the utility model;
[0016] Figure 3 This is the system diagram of the LNG gasification station of the utility model;
[0017] Figure 4 This is a system diagram of the utility model furnace hot water heater;
[0018] Figure 5 This is a diagram of the metering skid system of the utility model. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.
[0021] Embodiment 1:
[0022] See also Figure 1-Figure 5As shown, the utility model provides a supporting hot water heating system for a steam combined cycle power generation unit, including a refrigeration station, a water tank area, an LNG gasification station, a furnace hot water heater and a metering skid. The refrigeration station includes a bromide refrigeration unit. The number of bromide refrigeration units is two. An integral plate heat exchanger and a heat source water pump are fixedly installed in sequence from right to left between the tops of the two bromide refrigeration units through a pipeline. The number of heat source water pumps is three. The water tank area includes a hot water tank. The upper end of the left side of the hot water tank is fixedly installed on the upper end of the left side of the integral plate heat exchanger through a pipeline. The LNG gasification station includes a water bath heater A. The number of water bath heaters A is two. The tops of the two water bath heaters A are fixedly installed on the top of the bromide refrigeration unit through a pipeline. The number of furnace hot water heaters is two. The bottoms of the two furnace hot water heaters are fixedly installed on the top of the bromide refrigeration unit through a pipeline. The metering skid includes a water bath heater B. The number of water bath heaters B is two. The tops of the two water bath heaters B are fixedly installed on the top of the furnace hot water heater through a pipeline.
[0023] In the technical scheme, through the setting of two bromide refrigeration units, they can be cyclically switched during daily maintenance, effectively avoiding the situation where the bromide refrigeration unit cannot be operated due to maintenance, ensuring that a good refrigeration effect can still be provided during the maintenance process, thereby consuming a large amount of hot water. At the same time, the original set temperature of the water bath heater B in the metering skid is 65 degrees Celsius, and the temperature setting value can be 70 degrees Celsius according to the usage situation, and hot water can be supplied to the water bath heater A in the LNG gasification station according to actual conditions, thereby realizing a large consumption of hot water and reducing the waste of resources caused by low hot water consumption.
[0024] Embodiment 2:
[0025] On the basis of embodiment 1, the utility model is as follows Figure 1-Figure 5As shown, it is disclosed that the right side of the hot water tank is fixedly installed with a heat source water pump outlet mother pipe, a domestic hot water pump and a hot water unloading pump through pipes from top to bottom in sequence. There are two domestic hot water pumps and two hot water unloading pumps. The service building pipe and the office building pipe are fixedly installed between the output ends of the two domestic hot water pumps from top to bottom in sequence. A domestic hot water loading truck is fixedly installed between the output ends of the two hot water unloading pumps through pipes. The lower end of the left side of the integral plate heat exchanger is fixedly installed with a domestic hot water booster pump through pipes. There are two domestic hot water booster pumps. A municipal tap water pipeline is fixedly installed between the right sides of the booster pump, a metering skid return water booster pump is fixedly installed between the left sides of the two water bath heaters B through a pipeline, the right side of the metering skid return water booster pump is fixedly installed on the top of the furnace hot water heater through a pipeline, and a low-pressure recirculation pipeline is arranged inside the furnace hot water heater, a gasification station return water booster pump is fixedly installed between the right sides of the two water bath heaters A through a pipeline, there are three gasification station return water booster pumps, and it is fixedly installed on the right side of the gasification station return water booster pump through a pipeline between the left sides of the three heat source water pumps.
[0026] In the present technical scheme, by setting up a domestic hot water pump, it is convenient to extract the hot water inside the hot water tank and supply it to the service building pipeline and the office building pipeline, which effectively improves the consumption of hot water; by setting up a hot water unloading pump, it is possible to extract the hot water inside the hot water tank and supply it to the domestic hot water truck, which further improves the consumption of hot water; by setting up a domestic hot water booster pump, it is convenient to pressurize water supply to the interior of the integral plate heat exchanger; by setting up a metering skid return water booster pump, it is convenient to pressurize water supply to the water bath heater B; by setting up a gasification station return water booster pump, it is convenient to pressurize water supply to the interior of the water bath heater A.
[0027] The working principle of the utility model is: through the setting of two bromide refrigeration units, they can be cyclically switched during daily maintenance, effectively avoiding the situation where the bromide refrigeration unit cannot be operated due to maintenance, ensuring that a good refrigeration effect can still be provided during the maintenance process, thereby consuming a large amount of hot water. At the same time, the original set temperature of the water bath heater B in the metering skid is 65 degrees Celsius, and the temperature setting value can be 70 degrees Celsius according to the usage situation, and hot water can be supplied to the water bath heater A in the LNG gasification station according to actual conditions, thereby realizing a large amount of hot water consumption and reducing the waste of resources caused by low hot water consumption.
[0028] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and ratio of various elements, and parameter values (e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present utility model. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the present invention is not limited to a specific embodiment, but extends to various modifications that still fall within the scope of the appended claims.
[0029] Additionally, in order to provide a concise description of example embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.
[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the essence and scope of the technical solution of the utility model.
Claims
1. A hot water heating system for a steam combined cycle generator set, comprising a refrigeration station, a water tank area, an LNG gasification station, a furnace hot water heater and a metering skid, characterized in that: The refrigeration station includes a bromide cooling unit, and there are two bromide cooling units. An integral plate heat exchanger and a heat source water pump are fixedly installed in sequence from right to left between the tops of the two bromide cooling units through pipelines. There are three heat source water pumps. The water tank area includes a hot water tank. The upper end of the left side of the hot water tank is fixedly installed on the upper end of the left side of the integral plate heat exchanger through a pipeline. The LNG gasification station includes a water bath heater A. There are two water bath heaters A. The tops of the two water bath heaters A are fixedly installed on the top of the bromide cooling unit through a pipeline. There are two furnace hot water heaters. The bottoms of the two furnace hot water heaters are fixedly installed on the top of the bromide cooling unit through a pipeline. The metering skid includes a water bath heater B. There are two water bath heaters B. The tops of the two water bath heaters B are fixedly installed on the top of the furnace hot water heater through a pipeline.
2. A hot water heating system for a steam combined cycle generator set according to claim 1, characterized in that: The right side of the hot water tank is fixedly installed with a heat source water pump outlet main pipe, a domestic hot water pump and a hot water unloading pump through pipelines from top to bottom, and the number of the domestic hot water pump and the hot water unloading pump are both two.
3. A hot water heating system for a steam combined cycle generator set according to claim 2, characterized in that: A service building pipeline and an office building pipeline are fixedly installed in sequence from top to bottom between the output ends of the two domestic hot water pumps, and a domestic hot water loading vehicle is fixedly installed through pipelines between the output ends of the two hot water unloading pumps.
4. The supporting hot water heating system for a steam combined cycle generator set according to claim 1, characterized in that: A domestic hot water booster pump is fixedly installed at the lower end of the left side of the integral plate heat exchanger through a pipeline. There are two domestic hot water booster pumps, and a municipal tap water pipeline is fixedly installed between the right sides of the two domestic hot water booster pumps.
5. The supporting hot water heating system for a steam combined cycle generator set according to claim 1, characterized in that: A metering skid return water booster pump is fixedly installed between the left sides of the two water bath heaters B through a pipeline, and the right side of the metering skid return water booster pump is fixedly installed on the top of the furnace hot water heater through a pipeline.
6. The supporting hot water heating system for a steam combined cycle generator set according to claim 1, characterized in that: A low-pressure recirculation pipeline is arranged inside the furnace hot water heater.
7. The supporting hot water heating system for a steam combined cycle generator set according to claim 1, characterized in that: A gasification station return water booster pump is fixedly installed between the right sides of the two water bath heaters A through a pipe. There are three gasification station return water booster pumps. The left sides of the three heat source water pumps are fixedly installed on the right side of the gasification station return water booster pump through a pipe.