Steam turbine heat recovery device

Abstract

The utility model relates to the technical field of steam turbines, and particularly discloses a steam turbine heat recovery device which comprises a box body and a filter bin, the lower portion of the box body is connected with the filter bin through an adapter pipe, a plurality of filter screens are installed in the filter bin, and the outer side of the filter bin is connected with a steam turbine exhaust pipe through an air connecting pipe. A coil pipe is installed in the box body, the inlet end of the coil pipe is connected with an air connecting pipe, the outlet end of the coil pipe is connected with a smoke exhaust pipe, and a water inlet and a water outlet are further formed in the box body. High-temperature gas exhausted in the operation process of the steam turbine is connected with the gas connecting pipe through the external pipeline, a water source is guided into the box body from the water inlet valve, the situation that hot gas is exhausted into the external environment, heat contained in the hot gas directly escapes and is difficult to recycle can be effectively reduced, and energy waste is reduced.

Description

Technical Field

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

[0002] A steam turbine, also known as a steam turbine engine, is a rotary steam power device. High-temperature and high-pressure steam passes through a fixed nozzle to become an accelerated airflow and is then sprayed onto the blades, causing the rotor with the blade rows to rotate and perform work externally. Steam turbines are the main equipment in modern thermal power plants and are also used in the metallurgical industry, chemical industry, and ship power plants.

[0003] During the operation of the steam turbine, the hot gas generated by combustion will be discharged into the external environment, and the heat contained therein will also dissipate directly, making it difficult to recycle and easily leading to energy waste.

[0004] Therefore, there is an urgent need to design a steam turbine heat recovery device to solve the problem that during the operation of the existing steam turbine, the hot gas generated by combustion will be discharged into the external environment, and the heat contained therein will also dissipate directly, making it difficult to recycle and easily leading to energy waste. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model aims to provide a steam turbine heat recovery device.

[0006] The utility model solves the technical problem by adopting the following technical solution: a steam turbine heat recovery device, comprising a box body and a filter chamber, wherein the lower part of the box body is connected to the filter chamber through a transfer pipe, a plurality of filter screens are installed in the filter chamber, and the outer side of the filter chamber is connected to the steam turbine exhaust pipe through an air connection pipe;

[0007] The coil is installed in the box, the inlet end of the coil is connected to the air pipe, the outlet end of the coil is connected to the smoke exhaust pipe, and the box is also provided with a water inlet and a water outlet.

[0008] Specifically, a water inlet is provided at the upper part of one side of the box body, and a water inlet valve is installed on the pipe at the water inlet. A water outlet is provided at the lower part of the other side of the box body, and a drain valve is installed on the pipe at the water outlet.

[0009] Specifically, the four upper corners of the filter bin are equipped with lower adapter blocks, the inner side of the lower adapter blocks are threadedly connected with screws, the outer side of the screws are threadedly connected with upper adapter blocks, the upper adapter blocks are fixedly installed on the four corners of the cover plate, and the upper adapter blocks are arranged opposite to the lower adapter blocks.

[0010] Specifically, a sealing strip is fixedly installed at the bottom of the cover plate, and a gasket is movably connected to the outer side of the upper part of the screw.

[0011] Specifically, a liquid level observation tube is fixedly connected to one side of the box body, and the liquid level observation tube is made of transparent glass.

[0012] Specifically, the coil is a spring-like structure, the coil is made of metal copper, and the outer side of the coil is fixedly connected to the inner wall of the box.

[0013] Specifically, foot pads are fixedly installed on the bottom of the box body and the filter bin.

[0014] Specifically, a warning label is provided on the outside of the box.

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

[0016] The steam turbine heat recovery device designed by the utility model is provided with a coil. The coil is a spring-shaped structure and is made of metal copper. A box is fixedly connected to the outside of the coil. An inlet valve and a drain valve are fixedly connected to the two ends of the coil respectively. The high-temperature gas discharged during the operation of the steam turbine is connected to the gas connecting pipe through an external pipeline, and the water source is introduced into the box from the water inlet valve. After the high-temperature gas is filtered by the filter screen in the filter bin, it enters the coil through the transfer pipe and is discharged from the exhaust pipe. The heat is conducted to the outer wall of the coil, and then the water source in the box is heated. After the heating reaches the required time, the drain valve is opened to discharge the heated water source for secondary utilization. The discharge of hot gas into the external environment can be effectively reduced. The heat contained therein is directly dissipated, which makes it difficult to recycle the water, thereby reducing energy waste.

[0017] The steam turbine heat recovery device designed in the utility model is provided with a liquid level observation tube, the liquid level observation tube is made of transparent glass, one side of the liquid level observation tube is fixedly connected with a box body, and according to the principle of liquid level pressure, the height of the liquid level in the box body can be effectively displayed.

[0018] The steam turbine heat recovery device designed by the utility model is provided with a gasket, the inner side of the gasket is movably connected with a screw rod, and the outer side of the screw rod is threadedly connected with an upper transfer block, which can effectively reduce the looseness of the screw rod during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an axonometric structural diagram of the steam turbine heat recovery device.

[0020] Figure 2 It is a schematic diagram of the exploded structure of the steam turbine heat recovery device.

[0021] Figure 3 yes Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0022] Figure 4 It is a schematic diagram of the front view structure of the steam turbine heat recovery device.

[0023] Figure 5 It is a top view structural diagram of the steam turbine heat recovery device.

[0024] Figure 6 It is a side view structural diagram of the steam turbine heat recovery device.

[0025] In the figure: 1-box; 2-water inlet valve; 3-drain valve; 4-smoke exhaust pipe; 5-adapter pipe; 6-filter chamber; 7-air connecting pipe; 8-filter screen; 9-lower adapter block; 10-screw; 11-upper adapter block; 12-cover plate; 13-sealing strip; 14-gasket; 15-warning label; 16-liquid level observation tube; 17-coil; 18-foot pad. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of 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.

[0027] Embodiment 1.

[0028] like Figure 1-Figure 6 As shown, a steam turbine heat recovery device comprises a box body 1, an upper portion of one side of the box body 1 is fixedly connected with a water inlet valve 2, a lower portion of the other side of the box body 1 is fixedly connected with a drain valve 3, an upper portion of the other side of the box body 1 is fixedly connected with a smoke exhaust pipe 4, a lower portion of one side of the box body 1 is fixedly connected with a transfer pipe 5, a coil 17 is fixedly connected to the inside of the box body 1, both ends of the coil 17 are respectively fixedly connected with the smoke exhaust pipe 4 and the transfer pipe 5, a filter bin 6 is fixedly connected to one side of the transfer pipe 5, an air connection pipe 7 is fixedly connected to one side of the filter bin 6, a filter screen 8 is fixedly connected to the inside of the filter bin 6, and four lower transfer blocks 9 are symmetrically arranged on the other side of the filter bin 6, the inner sides of the lower transfer blocks 9 are all threadedly connected with screws 10, and the outer sides of the screws 10 are all threadedly connected An upper adapter block 11 is connected, and a cover plate 12 is fixedly connected to one side of the upper adapter block 11. The high-temperature gas discharged during the operation of the steam turbine is connected to the gas connection pipe 7 through an external pipe, and the water source is introduced into the box body 1 from the water inlet valve 2. After the high-temperature gas is filtered by the filter screen 8 in the filter bin 6, it enters the coil 17 through the adapter pipe 5 and is discharged from the smoke exhaust pipe 4. The heat is conducted to the outer wall of the coil 17, and then the water source in the box body 1 is heated. After heating for the required time, the drain valve 3 is opened to discharge the heated water source for secondary use, which can effectively reduce the discharge of hot gas into the external environment. The heat contained therein is directly dissipated, which is difficult to recycle, thereby reducing energy waste.

[0029] In the utility model, the outer side of the top end of the screw rod 10 is movably connected with a gasket 14, the outer side of the screw rod 10 is threadedly connected with an upper adapter block 11, and the outer side of the bottom end of the screw rod 10 is threadedly connected with a lower adapter block 9, which can effectively reduce the looseness of the screw rod 10 during long-term use.

[0030] In the utility model, a sealing strip 13 is fixedly connected to the bottom of the cover plate 12, an upper adapter block 11 is fixedly connected to one side of the cover plate 12, and a screw 10 is threadedly connected to the inner side of the upper adapter block 11, which effectively ensures the sealing degree between the cover plate 12 and the filter bin 6.

[0031] In the present invention, three filter screens 8 are symmetrically arranged, and the outer sides of the filter screens 8 are fixedly connected with filter bins 6 to further ensure the filtering capability of the high-temperature gas.

[0032] In the present invention, the bottom of the box body 1 and the filter bin 6 are fixedly connected with foot pads 18, and a plurality of foot pads 18 are symmetrically arranged, which effectively reduce the degree of oxidation corrosion caused by long-term direct contact between the box body 1 and the filter bin 6 and the ground.

[0033] In the utility model, a liquid level observation tube 16 is fixedly connected to one side of the box body 1. The liquid level observation tube 16 is made of transparent glass and can effectively display the height of the liquid level in the box body 1 according to the principle of liquid surface pressure.

[0034] In the present invention, a warning label 15 is fixedly connected to the other side of the box 1, which effectively improves the warning capability and reduces the risk of non-related personnel touching the equipment.

[0035] In the present invention, the coil 17 is a spring-like structure, the coil 17 is made of metal copper, the outer side of the coil 17 is fixedly connected to the box 1, and has a relatively good temperature conduction ability, while extending the travel of the high-temperature gas and improving the heating capacity.

[0036] Embodiment 2: The working principle of the steam turbine heat recovery device adopting the structural form of embodiment 1.

[0037] The working principle and use process of the utility model are as follows: when in use, the high-temperature gas discharged during the operation of the steam turbine is connected to the air connection pipe 7 through an external pipe, and the water source is introduced into the box body 1 from the water inlet valve 2. After the high-temperature gas is filtered by the filter screen 8 in the filter bin 6, it enters the coil 17 through the transfer pipe 5 and is discharged from the smoke exhaust pipe 4. The heat is conducted to the outer wall of the coil 17, and then the water source in the box body 1 is heated. After heating for the required time, the drain valve 3 is opened to discharge the heated water source for secondary use, which can effectively reduce the discharge of hot gas into the external environment, and the heat contained therein is directly dissipated, which is difficult to recycle, thereby reducing energy waste.

[0038] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0039] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

[0040] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam turbine heat recovery device, characterized in that: It comprises a box body (1) and a filter chamber (6), wherein the lower part of the box body (1) is connected to the filter chamber (6) via a transfer pipe (5), a plurality of filter screens (8) are installed in the filter chamber (6), and the outer side of the filter chamber (6) is connected to the exhaust pipe of a steam turbine via an air connection pipe (7); A coil (17) is installed in the box (1), the inlet end of the coil (17) is connected to the air pipe (7), the outlet end of the coil (17) is connected to the smoke exhaust pipe (4), and the box (1) is also provided with a water inlet and a water outlet.

2. The steam turbine heat recovery device according to claim 1, characterized in that: A water inlet is provided at the upper portion of one side of the box body (1), and a water inlet valve (2) is installed on the pipe at the water inlet; a water outlet is provided at the lower portion of the other side of the box body (1), and a drain valve (3) is installed on the pipe at the water outlet.

3. The steam turbine heat recovery device according to claim 1, characterized in that: The four upper corners of the filter bin (6) are provided with lower adapter blocks (9), the inner side of the lower adapter blocks (9) are all threadedly connected with screw rods (10), the outer side of the screw rods (10) are all threadedly connected with upper adapter blocks (11), the upper adapter blocks (11) are fixedly installed at the four corners of the cover plate (12), and the upper adapter blocks (11) are arranged opposite to the lower adapter blocks (9).

4. The steam turbine heat recovery device according to claim 3, characterized in that: A sealing strip (13) is fixedly installed at the bottom of the cover plate (12), and a gasket (14) is movably connected to the outer side of the upper part of the screw rod (10).

5. The steam turbine heat recovery device according to claim 1, characterized in that: A liquid level observation tube (16) is fixedly connected to one side of the box body (1), and the liquid level observation tube (16) is made of transparent glass.

6. The steam turbine heat recovery device according to claim 1, characterized in that: The coil (17) is a spring-shaped structure, the coil (17) is made of metal copper, and the outer side of the coil (17) is fixedly connected to the inner wall of the box body (1).

7. The steam turbine heat recovery device according to claim 1, characterized in that: Foot pads (18) are fixedly mounted on the bottoms of the box body (1) and the filter bin (6).

8. The steam turbine heat recovery device according to claim 1, characterized in that: A warning label (15) is provided on the outside of the box body (1).

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