A steam turbine heat supply device

Abstract

The utility model discloses a steam turbine heating device relates to steam turbine heating technical field. The utility model discloses a base, the base top is installed with the superheater, the superheater top is installed with temperature sensor, the base front fixedly connected with the baffle shell, the base left side intercommunication is provided with the flue gas pipe, still include: adjusting mechanism, adjusting mechanism sets up in the inside of base, adjusting mechanism is used for adjusting the entering amount of flue gas, and adjusting mechanism includes two symmetrical adjusting plate that sets up in the inside of base, and the top of two adjusting plate is fixedly connected with the movable rod through the pivot. Through adjusting plate overturn, adjust the distance between two adjusting plate, regulate and control the dosage of flue gas entering, and when the temperature in superheater is enough, can close two adjusting plate completely, when flue gas is fully utilized in superheater, and avoid flue gas continuously enter superheater, keep the heat stability of boiler, reduce the loss of heat.

Description

Technical Field

[0001] This utility model belongs to the field of steam turbine heating technology, and in particular relates to a steam turbine heating device. Background Technology

[0002] Steam turbine heating systems refer to systems that can both drive generators to generate electricity and use the heat from steam for industrial or civil heating. They are commonly known as combined heat and power systems, and steam turbine heating systems typically use superheaters to heat the transported steam.

[0003] However, traditional superheaters typically use the high-temperature flue gas generated by the boiler to conduct and convect the steam pipes inside the superheater to heat the steam. The flue gas usually enters directly from the bottom opening of the superheater. After flowing inside the superheater, the flue gas is discharged from the top. This continuous flow of flue gas leads to excessively rapid flue gas loss, which not only affects the temperature control inside the boiler, but also causes a significant loss of heat due to the continuous outflow of flue gas, thereby increasing heating costs. Utility Model Content

[0004] The purpose of this invention is to provide a steam turbine heating device. By setting an adjustment mechanism, specifically, the upward or downward movement of the connecting rod drives the movable rod to rotate, and the adjustment plate will rotate along with it, thereby adjusting the distance between the two adjustment plates and controlling the amount of flue gas entering. When the temperature in the superheater is sufficient, the two adjustment plates can be completely closed. At this time, the flue gas is fully utilized in the superheater, and the continuous entry of flue gas into the superheater is avoided, thus maintaining the boiler's heat stability and reducing heat loss. This solves the problem that flue gas usually enters directly from the bottom opening of the superheater, flows through the superheater, and then is discharged from the top, and the continuous flow of flue gas leads to excessively rapid flue gas loss.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to a steam turbine heating device, comprising a base, a superheater mounted on the top of the base, a temperature sensor mounted on the top of the superheater, a baffle fixedly connected to the front of the base, and a flue gas pipe connected to the left side of the base, and further comprising:

[0007] An adjustment mechanism, disposed inside the base, is used to adjust the amount of flue gas entering the system. The mechanism includes two symmetrically arranged adjustment plates inside the base. The tops of the two adjustment plates are fixedly connected to movable rods via pivots. The movable rods are disposed inside a baffle housing. The tops of the adjustment plates are rotatably connected to the base via pivots.

[0008] The exhaust mechanism is located at the top of the superheater and is used to exhaust the flue gas inside the superheater. The bottom of the superheater has several openings that are connected to the base. The flue gas pipe is used to connect to the boiler. The base is hollow inside. After the flue gas enters the base through the flue gas pipe, it will enter the superheater through the openings.

[0009] Furthermore, the base is equipped with several steam delivery pipes. Both ends of the steam delivery pipes pass through the superheater and extend to the outside. One main pipe is fixedly connected to the left end of the steam delivery pipe, and another main pipe is fixedly connected to the right end of the steam delivery pipe. A steam inlet pipe is fixedly connected to the left side of the first main pipe, and a steam exhaust pipe is fixedly connected to the right side of the second main pipe. The steam delivery pipes are used to increase the steam flow time, thereby improving the heating effect. The steam inlet pipe is used to connect to the steam delivery pipes, and the steam exhaust pipe is used to connect to the shut-off valve and the secondary valve, and is connected to the steam turbine through a pipeline.

[0010] Furthermore, the first main pipe is used to distribute steam into several steam conveying pipes, and the second main pipe is used to collect the steam in the several steam conveying pipes and convey it to the exhaust pipe. The steam conveying pipe is S-shaped. The heated steam will flow into the second main pipe and be discharged into the steam turbine through the exhaust pipe, thereby supplying heat to the steam turbine.

[0011] Furthermore, a connecting rod is provided inside the baffle, and an electric push rod is fixedly connected to the front of the base. The output end of the electric push rod is fixedly connected to the top of the connecting rod. Two fixed shafts are fixedly connected to the back of the connecting rod, and a slot is opened inside the movable rod. The fixed shaft slides in the slot without affecting the lifting and lowering of the connecting rod, and can smoothly drive the movable rod to move. The fixed shaft is slidably connected in the slot, and the diameter of the fixed shaft is smaller than the inner diameter of the slot.

[0012] Furthermore, the tilt angle of the movable rod is consistent with that of the adjusting plate, and the connecting rod is used to simultaneously push the two movable rods to move at the same time during movement.

[0013] Furthermore, the exhaust mechanism includes a fixed base fixedly connected to the top of the superheater. An electric push rod is fixedly connected to the top of the fixed base. An exhaust pipe is connected to the rear of the top of the base. A push-pull rod is fixedly connected to the output end of the electric push rod. A sealing plug is fixedly connected to the bottom of the push-pull rod. The sealing plug opens or closes the exhaust pipe by moving upward or downward. When the exhaust pipe is open, it is used to exhaust flue gas. When the exhaust pipe is closed, it makes full use of the heat of the flue gas. The push-pull rod slides through the exhaust pipe. A sealing ring is fitted at the connection between the push-pull rod and the exhaust pipe. The bottom of the sealing plug is conical.

[0014] Furthermore, the exhaust pipe is provided with a widening ring, the top and bottom of which are both conical. The bottom conical surface of the sealing plug contacts the bottom conical surface of the widening ring, and the diameter of the sealing plug is smaller than the inner diameter of the widening ring. When the sealing plug moves to the position of the widening ring, the exhaust pipe is open to flow.

[0015] This utility model has the following beneficial effects:

[0016] This invention features an adjustment mechanism. Specifically, the upward or downward movement of the connecting rod causes the movable rod to flip, which in turn causes the adjustment plate to flip as well. This adjusts the distance between the two adjustment plates, thereby controlling the amount of flue gas entering the boiler. When the temperature inside the superheater is sufficient, the two adjustment plates can be completely closed. At this time, the flue gas is fully utilized in the superheater, and the continuous entry of flue gas into the superheater is prevented, thus maintaining the boiler's heat stability and reducing heat loss.

[0017] This utility model, by setting up a smoke exhaust mechanism, specifically, activates an electric push rod two to drive the sealing plug to move up or down via a push-pull rod, thereby opening or closing the smoke exhaust pipe to discharge the used flue gas, or to seal the smoke exhaust pipe so that the flue gas is retained in the superheater for a long time, thereby improving the heating effect of steam and increasing the utilization rate of flue gas.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal cross-sectional structure of the superheater of this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the baffle shell of this utility model;

[0023] Figure 4 This utility model Figure 3 A magnified structural diagram of A in the middle;

[0024] Figure 5 This is a schematic diagram of the internal cross-sectional structure of the exhaust pipe of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Base; 11. Superheater; 12. Temperature sensor; 13. Baffle; 14. Flue gas pipe; 15. Steam conveying pipe; 151. Main pipe one; 152. Steam inlet pipe; 153. Main pipe two; 154. Steam exhaust pipe; 2. Adjustment mechanism; 21. Adjustment plate; 22. Movable rod; 221. Groove; 23. Connecting rod; 231. Fixed shaft; 24. Electric push rod one; 3. Smoke exhaust mechanism; 31. Fixed seat; 32. Electric push rod two; 321. Push-pull rod; 322. Sealing plug; 33. Smoke exhaust pipe; 331. Widened ring. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0028] Please see Figures 1-5 As shown, this utility model is a steam turbine heating device, including a base 1, a superheater 11 installed on the top of the base 1, a temperature sensor 12 installed on the top of the superheater 11, a baffle 13 fixedly connected to the front of the base 1, and a flue gas pipe 14 connected to the left side of the base 1. It also includes:

[0029] An adjustment mechanism 2 is disposed inside the base 1. The adjustment mechanism 2 is used to adjust the amount of flue gas entering the system. The adjustment mechanism 2 includes two symmetrically arranged adjustment plates 21 inside the base 1. The tops of the two adjustment plates 21 are fixedly connected to movable rods 22 via pivots. The movable rods 22 are disposed inside the baffle 13. The tops of the adjustment plates 21 are rotatably connected to the base 1 via pivots.

[0030] Smoke exhaust mechanism 3 is disposed on the top of superheater 11 and is used to exhaust the flue gas inside superheater 11.

[0031] The superheater 11 has several openings at its bottom, which are connected to the base 1. The flue gas pipe 14 is used to connect to the boiler.

[0032] The base 1 is provided with a number of steam conveying pipes 15. Both ends of the steam conveying pipes 15 pass through the superheater 11 and extend to the outside. The left end of the steam conveying pipe 15 is fixedly connected to a main pipe 151, and the right end of the steam conveying pipe 15 is fixedly connected to a main pipe 2 153. The left side of the main pipe 151 is fixedly connected to a steam inlet pipe 152, and the right side of the main pipe 2 153 is fixedly connected to a steam outlet pipe 154.

[0033] The steam inlet pipe 152 is used to connect to the steam delivery pipe, and the steam outlet pipe 154 is used to connect to the shut-off valve and the secondary valve, and is connected to the steam turbine through a pipeline.

[0034] The first main pipe 151 is used to divert steam into several steam conveying pipes 15, and the second main pipe 153 is used to collect the steam in the several steam conveying pipes 15 and convey it into the exhaust pipe 154. The steam conveying pipes 15 are S-shaped.

[0035] The baffle 13 is equipped with a connecting rod 23 inside. An electric push rod 24 is fixedly connected to the front of the base 1. The output end of the electric push rod 24 is fixedly connected to the top of the connecting rod 23. Two fixed shafts 231 are fixedly connected to the back of the connecting rod 23. A slot 221 is opened inside the movable rod 22. When the connecting rod 23 moves up or down, it will drive the movable rod 22 to flip. The adjusting plate 21 will also flip along with it, thereby adjusting the distance between the two adjusting plates 21 and controlling the amount of flue gas entering. When the temperature in the superheater 11 is sufficient, the two adjusting plates 21 can be completely closed. At this time, the flue gas is fully utilized in the superheater 11, and the continuous entry of flue gas into the superheater 11 is avoided, so as to maintain the heat stability of the boiler and reduce heat loss.

[0036] The fixed shaft 231 is slidably connected inside the slot 221, and the diameter of the fixed shaft 231 is smaller than the inner diameter of the slot 221.

[0037] The movable rod 22 has the same tilt angle as the adjusting plate 21, and the connecting rod 23 is used to simultaneously push the two movable rods 22 to move at the same time during movement.

[0038] The exhaust mechanism 3 includes a fixed base 31 fixedly connected to the top of the superheater 11. An electric push rod 32 is fixedly connected to the top of the fixed base 31. An exhaust pipe 33 is connected to the rear of the top of the base 1. A push-pull rod 321 is fixedly connected to the output end of the electric push rod 32. A sealing plug 322 is fixedly connected to the bottom of the push-pull rod 321. When the electric push rod 32 is activated, it drives the sealing plug 322 to move up or down through the push-pull rod 321, so that the exhaust pipe 33 is opened or closed to discharge the used flue gas, or to seal the exhaust pipe 33 so that the flue gas is retained in the superheater 11 for a long time, thereby improving the heating effect of steam and increasing the utilization rate of flue gas.

[0039] The push-pull rod 321 slides through the exhaust pipe 33, and a sealing ring is fitted at the connection between the push-pull rod 321 and the exhaust pipe 33. The bottom of the sealing plug 322 is set with a conical surface.

[0040] The exhaust pipe 33 is provided with a widening ring 331, the top and bottom of the widening ring 331 are both conical, the bottom conical surface of the sealing plug 322 contacts the bottom conical surface of the widening ring 331, and the diameter of the sealing plug 322 is smaller than the inner diameter of the widening ring 331.

[0041] One specific application of this embodiment is:

[0042] In use, the steam inlet pipe 152 is connected to the steam delivery pipeline, and the steam outlet pipe 154 is connected to the main steam shut-off valve and the secondary valve, and then connected to the steam turbine through the pipeline. The flue gas pipe 14 is used to connect to the boiler. When the steam is delivered into the main pipe 151, it will be diverted into multiple steam delivery pipelines 15 and flow in an S-shape within the steam delivery pipelines 15. The flue gas pipe 14 will deliver the flue gas generated by the boiler to the base 1 and enter the superheater 11 through the opening at the bottom of the superheater 11, thereby heating the steam in the steam delivery pipelines 15. Heating is achieved by conduction and convection. The heated steam will flow into the main pipe 153 and be discharged into the steam turbine through the steam outlet pipe 154, thereby supplying heat to the steam turbine. During the steam heating process, the temperature sensor 12 is used to monitor the temperature inside the superheater 11. The temperature sensor 12 is model (WG22701). When the temperature inside the superheater 11 is detected to be too high or too low, the electric push rod 24 will be activated to drive the superheater. When connecting rod 23 moves upward or downward, fixed shaft 231 pushes movable rod 22, which in turn drives adjusting plate 21 to move. When adjusting plate 21 flips upward, the opening at the bottom of superheater 11 is blocked, thus reducing the amount of flue gas entering. When adjusting plate 21 flips downward, more of the opening at the bottom of superheater 11 is exposed, thus increasing the amount of flue gas entering. At the same time, electric push rod 22 will be activated. When the temperature is too high, electric push rod 22 will be activated to push... When the lever 321 moves upward, the sealing plug 322 moves upward. At this time, the sealing plug 322 moves to the position of the widened ring 331, and the flue pipe 33 is open, so the flue gas in the superheater 11 will be discharged. When the temperature in the superheater 11 is too low, the electric push rod 32 drives the push-pull rod 321 to move downward, and the sealing plug 322 moves downward to seal the flue pipe 33, so that the flue gas is retained in the superheater 11, thereby ensuring the utilization rate of flue gas heat and can be adjusted according to different needs.

[0043] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the present utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A steam turbine heating device, comprising a base (1), a superheater (11) mounted on the top of the base (1), a temperature sensor (12) mounted on the top of the superheater (11), a baffle (13) fixedly connected to the front of the base (1), and a flue gas pipe (14) connected to the left side of the base (1), characterized in that, Also includes: Adjustment mechanism (2), the adjustment mechanism (2) is set inside the base (1), the adjustment mechanism (2) is used to adjust the amount of flue gas entering, the adjustment mechanism (2) includes two adjustment plates (21) symmetrically arranged inside the base (1), the top of the two adjustment plates (21) is fixedly connected to a movable rod (22) by a rotating shaft, the movable rod (22) is set inside the baffle (13), and the top of the adjustment plate (21) is rotatably connected to the base (1) by a rotating shaft; as well as Smoke exhaust mechanism (3), which is located on top of the superheater (11), is used to exhaust the flue gas inside the superheater (11); The superheater (11) has several openings at its bottom, which are connected to the base (1). The flue gas pipe (14) is used to connect to the boiler.

2. The steam turbine heating device according to claim 1, characterized in that, The base (1) is provided with several steam conveying pipes (15). Both ends of the steam conveying pipes (15) pass through the superheater (11) and extend to the outside. The left end of the steam conveying pipe (15) is fixedly connected to the main pipe one (151), and the right end of the steam conveying pipe (15) is fixedly connected to the main pipe two (153). The left side of the main pipe one (151) is fixedly connected to the steam inlet pipe (152), and the right side of the main pipe two (153) is fixedly connected to the steam outlet pipe (154). The steam inlet pipe (152) is used to connect to the steam delivery pipe, and the steam outlet pipe (154) is used to connect to the shut-off valve and the secondary valve, and is connected to the steam turbine through a pipeline.

3. A steam turbine heating device according to claim 2, characterized in that, The first main pipe (151) is used to divert steam into several steam conveying pipes (15), and the second main pipe (153) is used to collect the steam in several steam conveying pipes (15) and convey it into the exhaust pipe (154). The steam conveying pipes (15) are S-shaped.

4. A steam turbine heating device according to claim 3, characterized in that, The baffle (13) is provided with a connecting rod (23), the base (1) is fixedly connected to an electric push rod (24) on the front, the output end of the electric push rod (24) is fixedly connected to the top of the connecting rod (23), the connecting rod (23) is fixedly connected to two fixed shafts (231) on the back, and the movable rod (22) is provided with a slot (221). The fixed shaft (231) is slidably connected in the groove (221), and the diameter of the fixed shaft (231) is smaller than the inner diameter of the groove (221).

5. A steam turbine heating device according to claim 4, characterized in that, The inclination of the movable rod (22) is consistent with that of the adjusting plate (21), and the connecting rod (23) is used to simultaneously push the two movable rods (22) to move at the same time during movement.

6. A steam turbine heating device according to claim 2, characterized in that, The exhaust mechanism (3) includes a fixed base (31) fixedly connected to the top of the superheater (11), an electric push rod (32) fixedly connected to the top of the fixed base (31), an exhaust pipe (33) connected to the rear of the top of the base (1), a push-pull rod (321) fixedly connected to the output end of the electric push rod (32), and a sealing plug (322) fixedly connected to the bottom of the push-pull rod (321). The push-pull rod (321) slides through the exhaust pipe (33), and a sealing ring is fitted at the connection between the push-pull rod (321) and the exhaust pipe (33). The bottom of the sealing plug (322) is set with a conical surface.

7. A steam turbine heating device according to claim 6, characterized in that, The exhaust pipe (33) is provided with a widening ring (331), the top and bottom of the widening ring (331) are both conical, the bottom conical surface of the sealing plug (322) contacts the bottom conical surface of the widening ring (331), and the diameter of the sealing plug (322) is smaller than the inner diameter of the widening ring (331).

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