Steam turbine waste heat recovery device

Abstract

The utility model discloses a steam turbine waste heat recovery device which comprises a water tank, one side of the top end of the water tank is fixedly connected with a waste heat pipeline, a cooling pipe is arranged in the water tank, one end of the cooling pipe is connected with a waste heat pipeline flange, and the other end of the cooling pipe is fixedly connected with a steam water pipe. A funnel is matched with the bottom end of the steam water pipe, a drainage pipe is fixedly connected to the bottom end of the funnel, a filtering tank is fixedly connected to one side of the drainage pipe, a through hole is formed in the filtering tank, a collecting cylinder is inserted into the through hole, and a filtering net is fixedly connected to the bottom end of the collecting cylinder; and a fixing net is arranged above the middle part of the drainage pipe. By arranging a cooling pipe, a fixing net, a filtering tank and a collecting cylinder, water drops can be generated after hot air in the cooling pipe is cooled, the water drops are poured into a drainage pipe through a funnel, and the water drops flow into the filtering tank through inclined arrangement of the fixing net to complete filtering operation.

Description

Technical Field

[0001] The utility model relates to the technical field of waste heat recovery and treatment, in particular to a steam turbine waste heat recovery device. Background Art

[0002] The process of thermal power generation is an energy conversion process, that is, the chemical energy of the fuel is converted into saturated steam through the boiler, and the saturated steam is superheated in the superheater to become superheated steam. The superheated steam expands in the turbine to do work, converting the thermal energy of the steam into mechanical energy, and finally converting the mechanical energy into electrical energy through the generator. The low-pressure saturated steam after expansion and work is condensed into condensate by the air-cooled condenser, and then pumped to the condensate treatment system by the condensate pump, and returned to the boiler for recycling after treatment.

[0003] In the prior art, waste heat steam is discharged after being cooled, while high-temperature heat can be recycled and utilized. This resource can heat water sources, but steam will form water droplets after cooling. The water droplets contain impurities, which are difficult to handle and cause operational inconvenience. Utility Model Content

[0004] The utility model aims to provide a waste heat recovery device for a steam turbine. After the hot air inside the cooling pipe is cooled, water droplets will be generated, which will be poured into the inside of the drain pipe through a funnel, and will flow into the inside of the filter tank through the inclined setting of the fixed net to complete the filtering operation.

[0005] To achieve the above-mentioned purpose, a steam turbine waste heat recovery device is provided, comprising: a water tank, a waste heat pipe is fixedly connected to one side of the top of the water tank, a cooling pipe is arranged inside the water tank, one end of the cooling pipe is flange-connected to the waste heat pipe, the other end of the cooling pipe is fixedly connected to a steam water pipe, the bottom end of the steam water pipe is equipped with a funnel, the bottom end of the funnel is fixedly connected to a drain pipe, one side of the drain pipe is fixedly connected to a filter tank, a through hole is provided inside the filter tank, a collecting cylinder is inserted into the through hole, a filter screen is fixedly connected to the bottom end of the collecting cylinder, a fixed screen is provided above the middle of the drain pipe, and an opening is provided between the inclined end of the fixed screen and the filter tank.

[0006] According to the steam turbine waste heat recovery device, support blocks are fixedly connected to both sides of the upper middle portion of the drain pipe, and the top of the support block is fixedly connected to the fixed net.

[0007] According to the steam turbine waste heat recovery device, a water inlet pipe is fixedly connected to the other side of the top of the water tank, and a water outlet pipe is fixedly connected to one side of the bottom of the water tank.

[0008] According to the steam turbine waste heat recovery device, a hot water source is provided inside the water tank, and a temperature sensor is fixedly connected to the upper side of one side of the inner wall of the water tank.

[0009] According to the steam turbine waste heat recovery device, a return pipe is fixedly connected to the bottom end of the filter tank, and an outer wall of one end of the return pipe is fixedly connected to the drain pipe.

[0010] According to the steam turbine waste heat recovery device, the top end of the through hole is covered with a top cover.

[0011] According to the steam turbine waste heat recovery device, the cooling pipe has a U-shaped structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model is provided with a waste heat pipe, a cooling pipe, a temperature sensor and a water tank. The waste heat pipe circulates the hot steam into the interior of the water tank and circulates through the cooling pipe to provide a cooling effect. During the cooling process, the hot water source provides a temperature rise. At this time, the temperature sensor senses the temperature. After reaching a suitable water temperature, the water outlet pipe discharges the hot water source and replaces the water source through the water inlet pipe. This structure can increase the recovery and utilization of heat and reduce the waste of heat resources.

[0014] 2. The utility model is provided with a cooling pipe, a fixed net, a filter tank and a collecting cylinder. After the internal hot air of the cooling pipe is cooled, water droplets will be generated, which will be poured into the interior of the drain pipe through the funnel, and will flow into the interior of the filter tank through the inclined setting of the fixed net to complete the filtering operation. Impurities will fall into the interior of the collecting cylinder, which is convenient for unified treatment, and the water will flow back to the interior of the drain pipe again through the reflux pipe to complete the reflux. Through this structure, impurities in the water source can be filtered and collected uniformly.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 This is a cross-sectional front view of a steam turbine waste heat recovery device according to the utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of a drain pipe of a steam turbine waste heat recovery device of the utility model;

[0019] Figure 3 For this utility model Figure 1 A in the enlarged view;

[0020] Figure 4 The utility model is a three-dimensional structural diagram of a water tank of a steam turbine waste heat recovery device.

[0021] In the figure: 1. water tank; 2. temperature sensor; 3. waste heat pipe; 4. water inlet pipe; 5. hot water source; 6. cooling pipe; 7. drain pipe; 8. outlet pipe; 9. return pipe; 10. filter tank; 11. filter screen; 12. collecting cylinder; 13. top cover; 14. funnel; 15. through hole; 16. support block; 17. fixing net; 18. steam water pipe. DETAILED DESCRIPTION

[0022] 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.

[0023] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model; the terms "first", "second" and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0024] See also Figure 1-4The utility model provides a technical solution: a steam turbine waste heat recovery device, which comprises: a water tank 1, a waste heat pipe 3 is fixedly connected to one side of the top of the water tank 1, a cooling pipe 6 is arranged inside the water tank 1, hot steam is circulated through the waste heat pipe 3, enters the inside of the water tank 1, and circulates through the cooling pipe 6 to provide cooling, the cooling pipe 6 is a U-shaped structure, and the U-shaped setting can contact the hot water source 5 with the largest area, one end of the cooling pipe 6 is flange-connected to the waste heat pipe 3, and the other end of the cooling pipe 6 is fixedly connected to a steam water pipe 18, when the hot air inside the cooling pipe 6 is cooled, water droplets will be generated, and at this time, the water droplets will flow to the inside of the funnel 14 through the steam water pipe 18, and the bottom end of the steam water pipe 18 is equipped with a funnel 14, and the water droplets are poured into the inside of the drain pipe 7 through the funnel 14, and the fixed net 17 filters impurities and water sources, and the bottom end of the funnel 14 is fixedly connected to the drain pipe 7;

[0025] Support blocks 16 are fixedly connected to both sides of the upper middle part of the drain pipe 7, the top of the support block 16 is fixedly connected to the fixed net 17, a filter tank 10 is fixedly connected to one side of the drain pipe 7, the bottom end of the filter tank 10 is fixedly connected to the return pipe 9, the residual water is infiltrated again through the filter net 11, and the water will flow back to the inside of the drain pipe 7 through the return pipe 9 again to complete the reflux, and the outer wall of one end of the return pipe 9 is fixedly connected to the drain pipe 7, a through hole 15 is opened inside the filter tank 10, the top end of the through hole 15 is covered with a top cover 13, by opening the top cover 13, it is convenient to take out the collection cylinder 12, and the impurities are cleaned uniformly, the collection cylinder 12 is plugged into the through hole 15, the bottom end of the collection cylinder 12 is fixedly connected to the filter net 11, the storage of impurities through the filter net 11 is In order to facilitate the penetration of water, a fixed net 17 is arranged above the middle part of the drain pipe 7, and the impurities will fall into the interior of the filter tank 10 through the inclined setting of the fixed net 17. At this time, the impurities will fall into the interior of the collecting tube 12, and an opening is opened between the inclined end of the fixed net 17 and the filter tank 10. The other side of the top of the water tank 1 is fixedly connected with a water inlet pipe 4, and the bottom side of the water tank 1 is fixedly connected with a water outlet pipe 8. After reaching a suitable water temperature, the water outlet pipe 8 completes the discharge of the hot water source 5, and completes the replacement of the water source through the water inlet pipe 4, which can increase the heat recovery and utilization. A hot water source 5 is arranged inside the water tank 1, and a cooling pipe 6 realizes circulation to provide cooling. During the cooling process, the hot water source 5 provides heating. A temperature sensor 2 is fixedly connected to the upper side of the inner wall of the water tank 1, and the temperature sensor 2 performs temperature sensing.

[0026] Working principle: when in use, firstly, the hot steam is circulated through the waste heat pipe 3, enters the interior of the water tank 1, and circulates through the cooling pipe 6 to provide a cooling effect. During the cooling process, the hot water source 5 provides heating. At this time, the temperature sensor 2 performs temperature sensing. After reaching the appropriate water temperature, the outlet pipe 8 completes the discharge of the hot water source 5, and the water source is replaced through the water inlet pipe 4, which can increase the heat recovery. When the hot air inside the cooling pipe 6 is cooled, water droplets will be generated. At this time, it will flow to the interior of the funnel 14 through the steam water pipe 18, and then poured into the interior of the drain pipe 7 through the funnel 14. The fixed net 17 filters the impurities and the water source. The impurities will fall into the interior of the filter tank 10 through the inclined setting of the fixed net 17. At this time, the impurities will fall into the interior of the collecting cylinder 12, and the residual water will be infiltrated again through the filter net 11, and the water will flow back to the interior of the drain pipe 7 through the reflux pipe 9 again to complete the reflux. By opening the top cover 13, it is convenient to take out the collecting cylinder 12 and clean the impurities uniformly.

[0027] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steam turbine waste heat recovery device, comprising: A water tank (1), characterized in that a waste heat pipe (3) is fixedly connected to one side of the top end of the water tank (1), a cooling pipe (6) is arranged inside the water tank (1), one end of the cooling pipe (6) is flange-connected to the waste heat pipe (3), the other end of the cooling pipe (6) is fixedly connected to a steam water pipe (18), the bottom end of the steam water pipe (18) is matched with a funnel (14), the bottom end of the funnel (14) is fixedly connected to a drain pipe (7), one side of the drain pipe (7) is fixedly connected to a filter tank (10), a through hole (15) is provided inside the filter tank (10), a collecting cylinder (12) is inserted into the inside of the through hole (15), a filter net (11) is fixedly connected to the bottom end of the collecting cylinder (12), a fixed net (17) is provided above the middle of the drain pipe (7), and an opening is provided between the inclined end of the fixed net (17) and the filter tank (10).

2. A steam turbine waste heat recovery device according to claim 1, characterized in that: Support blocks (16) are fixedly connected to both sides of the upper middle portion of the drainage pipe (7), and the top of the support block (16) is fixedly connected to the fixed net (17).

3. A steam turbine waste heat recovery device according to claim 1, characterized in that: A water inlet pipe (4) is fixedly connected to the other side of the top of the water tank (1), and a water outlet pipe (8) is fixedly connected to one side of the bottom of the water tank (1).

4. A steam turbine waste heat recovery device according to claim 1, characterized in that: A hot water source (5) is provided inside the water tank (1), and a temperature sensor (2) is fixedly connected to the upper side of one side of the inner wall of the water tank (1).

5. The steam turbine waste heat recovery device according to claim 1, characterized in that: The bottom end of the filter tank (10) is fixedly connected to a return pipe (9), and the outer wall of one end of the return pipe (9) is fixedly connected to the drain pipe (7).

6. A steam turbine waste heat recovery device according to claim 1, characterized in that: The top end of the through hole (15) is covered with a top cover (13).

7. The steam turbine waste heat recovery device according to claim 1, characterized in that: The cooling pipe (6) has a U-shaped structure.

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