Device for improving the heating efficiency of a steam turbine

Abstract

The utility model provides a device that can improve steam turbine heat supply efficiency. The device that can improve steam turbine heat supply efficiency includes: installation chassis, steam turbine body, the steam turbine body is installed at the top of installation chassis, the import of steam turbine body is installed with import steam pipe, the back surface one end of import steam pipe is installed with conical collecting pipe, the back surface one end of conical collecting pipe is installed with fine filter pipe through flange connecting structure, the back surface one end of fine filter pipe is installed with impact tube through flange connecting structure, the back surface one end of impact tube is installed with cyclone tube through flange connecting structure. The device that can improve steam turbine heat supply efficiency provided by the utility model, after the steam dryness is greatly improved through the design, the unit mass steam effective heat supply energy is obviously increased, the equipment erosion wear rate is greatly reduced, the heat supply pipeline and heat exchange equipment maintenance cycle are significantly prolonged, the heat exchange efficiency is greatly improved, the steam extraction quantity is reduced under the same heat supply demand, and the fuel consumption is indirectly reduced.

Description

Technical Field

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

[0002] Steam turbines are the core power equipment in power plants. They use high-temperature, high-pressure steam generated by boilers as the working fluid. The steam impacts the rotor blades, converting the thermal energy of the steam into the mechanical energy of the rotor, which then drives the generator to rotate and cut magnetic field lines, ultimately realizing the conversion of thermal energy into electrical energy. Their operating efficiency directly affects the power generation benefits of the power plant and they are widely used in various power generation systems such as thermal power and nuclear power.

[0003] Steam turbine heating efficiency is a key indicator for measuring the degree to which steam turbines convert thermal energy into effective thermal energy and mechanical energy under combined heat and power (CHP) conditions. It is calculated based on the total heat of the high-temperature and high-pressure steam input to the steam turbine, and is the ratio of the sum of the heat supplied to the outside and the heat corresponding to the effective power generation to the total input heat.

[0004] If heating steam contains liquid water droplets, it will reduce the steam enthalpy and reduce the effective heating energy. The water droplets will also erode and wear pipes and heat exchange equipment, and form a water film on the heat exchange surface to hinder heat transfer, further reducing heating efficiency. Traditional filter-type and baffle-type steam separation devices have low separation efficiency and are prone to clogging, making it difficult to maintain stable steam dryness in the long term, thus affecting heating quality.

[0005] Therefore, it is necessary to provide a device that can improve the heating efficiency of steam turbines to solve the above-mentioned technical problems. Utility Model Content

[0006] This utility model provides a device that can improve the heating efficiency of steam turbines, solving the problems of low efficiency, easy blockage, and difficulty in stabilizing steam dryness caused by water droplets in the heating steam.

[0007] To solve the above-mentioned technical problems, the device provided by this utility model for improving the heating efficiency of steam turbines includes: a mounting base;

[0008] The turbine body is mounted on top of the mounting base. An inlet pipe is installed at the inlet of the turbine body. A conical concentrator pipe is installed at one end of the back of the inlet pipe. A fine filter pipe is installed at one end of the back of the conical concentrator pipe via a flange connection structure. An impact pipe is installed at one end of the back of the fine filter pipe via a flange connection structure. A swirl tube is installed at one end of the back of the impact tube via a flange connection structure. A conical diffuser pipe is installed at the other end of the swirl tube. Multiple fixing components are mounted on the top of the mounting base.

[0009] Multiple spiral guide vanes are installed inside the cyclone tube, and multiple annular impact components are installed inside the impact tube. A conical separation core is installed inside the fine filter tube.

[0010] The fixing components are used to increase the stability of the fine filter tube, impact tube and cyclone tube. The cone-shaped separation core has a pore size of 3-5mm and a porosity of ≥80%.

[0011] Preferably, a control box with a door is installed on the top of the mounting base, and an operation panel is installed on one side of the control box;

[0012] The control panel allows users to set equipment operating parameters. The door is equipped with a lock, and the control box contains power switches and controllers for auxiliary equipment operation.

[0013] Preferably, a bracket is mounted on the back of the mounting base, and a condenser is mounted on the top of the bracket;

[0014] The condenser inlet is connected to the turbine outlet.

[0015] Preferably, the mounting base includes a base plate, a mounting structure, and an adjustment structure, wherein the mounting structure is used to mount the adjustment structure to the bottom of the base plate;

[0016] The threaded connection of the mounting and adjusting structure allows for adjustment of the stability of the base plate as needed.

[0017] Preferably, the annular impact assembly includes an impact ring and an intercepting bar, the intercepting bar being mounted on the inner surface of the impact ring;

[0018] The interception strips are angled to facilitate the interception of the outermost water droplets.

[0019] Preferably, the fixing assembly includes a support frame, two fixing structures, and a limiting ring, wherein the two fixing structures are used to mount the limiting ring on the top of the support frame.

[0020] Preferably, a discharge pipe is installed at the bottom of the fine filter tube and the impact tube, and a one-way valve is installed at the bottom end of each discharge pipe.

[0021] Preferably, a collection frame is installed at the bottom of the plurality of check valves, and a connecting pipe with a valve is installed on one side of the collection frame.

[0022] Compared with related technologies, the device for improving the heating efficiency of steam turbines provided by this utility model has the following beneficial effects:

[0023] This invention provides a device to improve the heating efficiency of a steam turbine. To reduce the water content of the steam and improve heating efficiency, a conical concentrator, a fine filter, an impactor, and a vortex tube are sequentially installed at the inlet end of the steam inlet pipe. These components are connected by flanges for easy disassembly and maintenance. Multiple spiral guide vanes are installed inside the vortex tube to allow the incoming steam to be transported in a rotating manner, using centrifugal force to throw water droplets from the steam outer ring. Multiple annular impact components are installed inside the impactor to intercept water droplets thrown towards the outer ring. A conical separator core is installed inside the fine filter to further intercept the steam. Finally, the steam is injected into the turbine body through the steam inlet pipe. This design significantly increases the steam dryness, resulting in a marked increase in the effective heating energy per unit mass of steam, a substantial decrease in equipment erosion and wear, a significantly extended maintenance cycle for heating pipes and heat exchange equipment, and a significant improvement in heat exchange efficiency. This also reduces the amount of steam extracted for the same heating demand, indirectly reducing fuel consumption. Attached Figure Description

[0024] Figure 1 A schematic diagram of the structure of the first embodiment of the device for improving the heating efficiency of a steam turbine provided by this utility model;

[0025] Figure 2 A structural diagram illustrating the installation structure of this utility model is provided.

[0026] Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown;

[0027] Figure 4 Provided for this utility model Figure 2 An enlarged view of point B shown;

[0028] Figure 5 A schematic diagram of the second embodiment of the device for improving the heating efficiency of a steam turbine provided by this utility model;

[0029] Figure 6 Provided for this utility model Figure 5 A magnified view of point C shown.

[0030] The diagram is labeled as follows: 1. Mounting base frame; 101. Base plate; 102. Mounting structure; 103. Adjustment structure; 2. Control box; 3. Box door; 4. Operation panel; 5. Steam turbine body; 6. Steam inlet pipe; 7. Conical converging pipe; 8. Fixing assembly; 801. Support frame; 802. Fixing structure; 803. Limiting ring; 9. Conical diffuser; 10. Swirl pipe; 11. Impact pipe; 12. Flange connection structure; 13. Fine filter pipe; 14. Bracket; 15. Condenser; 16. Spiral guide vane; 17. Annular impact assembly; 171. Impact ring; 172. Interception bar; 18. Conical separator core; 19. Discharge pipe; 20. Check valve; 21. Converging frame; 22. Connecting pipe; 23. Valve. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] First Embodiment

[0033] Please refer to the following: Figure 1 , Figure 2 , Figure 3 , Figure 4 ,in, Figure 1 A schematic diagram of the structure of the first embodiment of the device for improving the heating efficiency of a steam turbine provided by this utility model; Figure 2 A structural diagram illustrating the installation structure of this utility model is provided. Figure 3 Provided for this utility model Figure 2 An enlarged view of point A shown; Figure 4 Provided for this utility model Figure 2 An enlarged view of point B is shown. The device for improving the heating efficiency of a steam turbine includes: mounting base 1;

[0034] The turbine body 5 is mounted on the top of the mounting base 1. A steam inlet pipe 6 is installed at the inlet of the turbine body 5. A conical concentrator pipe 7 is installed at one end of the back of the steam inlet pipe 6. A fine filter pipe 13 is installed at one end of the back of the conical concentrator pipe 7 through a flange connection structure 12. An impact pipe 11 is installed at one end of the back of the fine filter pipe 13 through a flange connection structure 12. A swirl pipe 10 is installed at one end of the back of the impact pipe 11 through a flange connection structure 12. A conical diffuser pipe 9 is installed at the other end of the swirl pipe 10. Multiple fixing components 8 are installed on the top of the mounting base 1.

[0035] Multiple spiral guide vanes 16 are installed inside the cyclone tube 10, and multiple annular impact components 17 are installed inside the impact tube 11. A conical separation core 18 is installed inside the fine filter tube 13.

[0036] The fixing component 8 is used to increase the stability of the fine filter tube 13, the impact tube 11 and the cyclone tube 10. The cone-shaped separation core 18 has a pore diameter of 3-5 mm and a porosity of ≥80%. When steam passes through the honeycomb pores, the remaining tiny water droplets are adsorbed by the pore wall, further purifying the steam. The separation core is treated with a hydrophobic coating, and the adsorbed water droplets quickly converge into a stream and flow into the water collection chamber.

[0037] Please refer to Figure 1 A control box 2 with a door 3 is installed on the top of the mounting base 1, and an operation panel 4 is installed on one side of the control box 2;

[0038] The operation panel 4 allows setting equipment operating parameters, the door 3 is equipped with a lock, and the control box 2 contains a power switch and a controller for the operation of auxiliary equipment.

[0039] Please refer to Figure 1 A bracket 14 is mounted on the back of the mounting base 1, and a condenser 15 is mounted on the top of the bracket 14.

[0040] The inlet of condenser 15 is connected to the outlet of turbine body 5.

[0041] Please refer to Figure 1 and Figure 2 The mounting base 1 includes a base plate 101, a mounting structure 102, and an adjustment structure 103. The mounting structure 102 is used to mount the adjustment structure 103 to the bottom of the base plate 101.

[0042] The threaded connection between the mounting structure 102 and the adjusting structure 103 allows for adjustment of the stability of the base plate 101 as needed.

[0043] Please refer to Figure 2 and Figure 3 The annular impact assembly 17 includes an impact ring 171 and an intercepting strip 172, wherein the intercepting strip 172 is mounted on the inner surface of the impact ring 171;

[0044] The interception bar 172 has a certain angle, which makes it easier to intercept the outermost water droplets.

[0045] Please refer to Figure 2 and Figure 4 The fixing component 8 includes a support frame 801, two fixing structures 802 and a limiting ring 803. The two fixing structures 802 are used to install the limiting ring 803 on the top of the support frame 801.

[0046] The limiting ring 803 is in contact with the fine filter tube 13, the impact tube 11 and the cyclone tube 10.

[0047] The working principle of the device for improving the heating efficiency of steam turbines provided by this utility model is as follows:

[0048] At the inlet end of the steam inlet pipe 6, a conical concentrator pipe 7, a fine filter pipe 13, an impact pipe 11, and a swirl pipe 10 are installed in sequence. The conical concentrator pipe 7, the fine filter pipe 13, the impact pipe 11, and the swirl pipe 10 are all connected by a flange connection structure 12, which facilitates disassembly and maintenance later. At the same time, multiple spiral guide vanes 16 are installed inside the swirl pipe 10, which allows the incoming steam to be transported in a rotating manner. The principle of centrifugal force is used to throw water droplets from the steam out of the steam ring. Multiple annular impact components 17 are installed inside the impact pipe 11, which can intercept the water droplets thrown out of the steam ring. A conical separator core 18 is installed inside the fine filter pipe 13, which can perform secondary interception of the steam. Finally, the steam is injected into the steam turbine body 5 through the steam inlet pipe 6.

[0049] Compared with related technologies, the device for improving the heating efficiency of steam turbines provided by this utility model has the following beneficial effects:

[0050] To reduce the water content of the steam in the turbine and improve heating efficiency, a conical concentrator 7, a fine filter pipe 13, an impact pipe 11, and a cyclone pipe 10 are sequentially installed at the inlet end of the steam inlet pipe 6. These components are connected by flanges 12 for easy disassembly and maintenance. Multiple spiral guide vanes 16 are installed inside the cyclone pipe 10 to allow the incoming steam to be transported in a rotating manner, utilizing centrifugal force to throw water droplets from the steam's outer ring. Meanwhile, the impact pipe 11... Multiple annular impact components 17 are installed inside the steam turbine to intercept water droplets thrown towards the outer ring. A conical separation core 18 is installed inside the fine filter tube 13 to perform secondary interception of steam. Finally, the steam is injected into the steam turbine body 5 through the steam inlet pipe 6. After the steam dryness is greatly improved by this design, the effective heat supply energy per unit mass of steam is significantly increased, the erosion wear rate of equipment is greatly reduced, the maintenance cycle of heating pipelines and heat exchange equipment is significantly extended, the heat exchange efficiency is greatly improved, and the amount of steam extracted is reduced under the same heat supply demand, which indirectly reduces fuel consumption.

[0051] Second Embodiment

[0052] Please refer to the following: Figures 5-6 , Figure 5 A schematic diagram of the second embodiment of the device for improving the heating efficiency of a steam turbine provided by this utility model; Figure 6 Provided for this utility model Figure 5 The enlarged view at point C shows an apparatus for improving the heating efficiency of a steam turbine based on the first embodiment of this application. The second embodiment of this application proposes another apparatus for improving the heating efficiency of a steam turbine. The second embodiment is merely a preferred embodiment of the first embodiment, and its implementation will not affect the independent implementation of the first embodiment.

[0053] Specifically, the difference in the device for improving the heating efficiency of a steam turbine provided in the second embodiment of this application is that, please refer to... Figure 5 and Figure 6 The bottom of the fine filter tube 13 and the impact tube 11 is equipped with a discharge tube 19, and a one-way valve 20 is installed at the bottom of each discharge tube 19.

[0054] Multiple discharge pipes 19 are installed at the bottom of the impact pipe 11.

[0055] Please refer to Figure 5 and Figure 6 A collection frame 21 is installed at the bottom of the plurality of one-way valves 20, and a connecting pipe 22 with a valve 23 is installed on one side of the collection frame 21.

[0056] The connecting pipe 22 facilitates the drainage of liquid inside the summarizing box 21.

[0057] Compared with related technologies, the device for improving the heating efficiency of steam turbines provided by this utility model has the following beneficial effects:

[0058] To facilitate the discharge of water droplets intercepted inside the fine filter tube 13 and the impact tube 11, a discharge pipe 19 with a one-way valve 20 is installed at the bottom of both the fine filter tube 13 and the impact tube 11. The one-way valve 20 can prevent water droplet backflow. Multiple discharge pipes 19 are installed at the bottom of the impact tube 11, and each discharge pipe 19 is positioned corresponding to the annular impact assembly 17 to facilitate the discharge of water droplets layer by layer. The bottoms of the multiple one-way valves 20 are connected to the collection frame 21, which can collect the water droplets and then discharge them from the connecting pipe 22.

[0059] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A device for improving the heating efficiency of a steam turbine, characterized in that, include: Install the base frame; The turbine body is mounted on top of the mounting base. An inlet pipe is installed at the inlet of the turbine body. A conical concentrator pipe is installed at one end of the back of the inlet pipe. A fine filter pipe is installed at one end of the back of the conical concentrator pipe via a flange connection structure. An impact pipe is installed at one end of the back of the fine filter pipe via a flange connection structure. A swirl tube is installed at one end of the back of the impact tube via a flange connection structure. A conical diffuser pipe is installed at the other end of the swirl tube. Multiple fixing components are mounted on the top of the mounting base. Multiple spiral guide vanes are installed inside the cyclone tube, multiple annular impact components are installed inside the impact tube, and a conical separation core is installed inside the fine filter tube.

2. The device for improving the heating efficiency of a steam turbine according to claim 1, characterized in that, A control box with a door is mounted on the top of the mounting base, and an operation panel is mounted on one side of the control box.

3. The device for improving the heating efficiency of a steam turbine according to claim 1, characterized in that, A bracket is mounted on the back of the mounting base, and a condenser is mounted on the top of the bracket.

4. The device for improving the heating efficiency of a steam turbine according to claim 1, characterized in that, The mounting base includes a base plate, a mounting structure, and an adjustment structure. The mounting structure is used to mount the adjustment structure to the bottom of the base plate.

5. The device for improving the heating efficiency of a steam turbine according to claim 1, characterized in that, The annular impact assembly includes an impact ring and an intercepting bar, the intercepting bar being mounted on the inner surface of the impact ring.

6. The device for improving the heating efficiency of a steam turbine according to claim 1, characterized in that, The fixing assembly includes a support frame, two fixing structures, and a limiting ring, wherein the two fixing structures are used to mount the limiting ring on the top of the support frame.

7. The device for improving the heating efficiency of a steam turbine according to claim 1, characterized in that, The bottom of the fine filter tube and the impact tube is equipped with a discharge tube, and a one-way valve is installed at the bottom of each discharge tube.

8. The device for improving the heating efficiency of a steam turbine according to claim 7, characterized in that, A collection frame is installed at the bottom of the plurality of check valves, and a connecting pipe with a valve is installed on one side of the collection frame.

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