Condensed gas and waste heat comprehensive recycling device of steam turbine generator unit

Abstract

The utility model relates to a steam turbine generator unit condensed gas and waste heat comprehensive recycling device, which belongs to the field of steam turbine generator units, and comprises a condensed gas tank and a stop valve fixedly connected to the left side of the condensed gas tank, the inner top wall of the condensed gas tank is fixedly connected with a baffle plate, the left side of the baffle plate is a first chamber, and the right side of the baffle plate is a second chamber. An auxiliary assembly used for steam noise reduction and pressure reduction is arranged on the inner side of the condensation tank and comprises a silencer fixedly connected to the inner side of the condensation tank, a first cooling coil and three second cooling coils, and a recycling assembly used for collecting condensate water and heating the condensate water for use is arranged at the bottom of the condensation tank. According to the condensed gas and waste heat comprehensive recycling device of the steam turbine generator unit, cooling, pressure reduction and waste heat recovery of steam at different stages are achieved, waste heat of the steam is efficiently transmitted to a circulating water system under the combined action of the silencer, the first cooling coil and the second cooling coil, and energy waste is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of steam turbine generator unit condensation, waste heat comprehensive recycling device, belong to steam turbine generator unit field. BACKGROUND

[0002] At present, with the increasing energy consumption and the increasingly stringent requirements of environmental protection, the improvement of various industrial devices in energy saving has become an urgent demand. Especially for steam turbine generator unit, how to improve the power generation efficiency while effectively utilizing steam waste heat, reducing noise pollution, realizing condensate recovery and comprehensive utilization has become an important issue of modern power production.

[0003] Direct emission of steam turbine generator unit tail gas is often accompanied by the spread of high-frequency noise, which seriously affects the surrounding environment and the working conditions of workers. And in steam turbine generator unit, high-temperature and high-pressure tail gas steam is usually directly discharged into the environment, without fully recovering the waste heat therein, which not only leads to a large amount of waste of energy, but also increases the cost of power generation. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the shortcomings of the prior art, the utility model provides a kind of steam turbine generator unit condensation, waste heat comprehensive recycling device, with the advantages of recovering waste heat, reducing noise, etc.

[0006] (II) Technical scheme

[0007] To achieve the above-mentioned purpose of recovering waste heat and reducing noise, the utility model provides the following technical scheme: a kind of steam turbine generator unit condensation, waste heat comprehensive recycling device, including condensation tank and fixedly connected with the stop valve on the left side of condensation tank, the inner top wall of condensation tank is fixedly connected with baffle, the left side of baffle is first chamber, the right side of baffle is second chamber, the inner side of condensation tank is equipped with auxiliary assembly for steam silencing and pressure reduction;

[0008] The auxiliary assembly includes a sound absorber, a first cooling coil and three second cooling coils fixedly connected to the inner side of the condensation tank.

[0009] The bottom of the condensation tank is provided with a recovery assembly for collecting and heating the condensate.

[0010] Further, the sound absorber and the first cooling coil are located in the first chamber, and the three second cooling coils are located in the second chamber, and a six-hundred-millimeter gap is provided between the bottom of the baffle and the inner bottom wall of the condensation tank.

[0011] Further, the muffler is composed of an outer cover, soundproofing material and an inner cover, the outer cover and the inner cover are both provided with a plurality of reflection holes, and the soundproofing material is filled between the outer cover and the inner cover.

[0012] Further, the three second cooling coils are arranged equidistantly along the up-down direction of the condenser.

[0013] Further, the recycling assembly comprises a drain valve fixedly connected to the drain port of the condenser, a water storage tank fixedly connected to the bottom end of the drain valve, a heat exchanger fixedly connected to the water storage tank and fixedly connected to the right side of the water storage tank, and a circulating water pipe fixedly connected to the water inlet end of the heat exchanger.

[0014] Further, the heat transfer end of the heat exchanger penetrates through the right side wall of the water storage tank and extends to the inside of the water storage tank, the circulating water pipe is provided with four connecting heads, and the connecting end of the first cooling coil and the connecting end of the second cooling coil are respectively connected to corresponding connecting heads.

[0015] Further, the left side of the water storage tank is fixedly connected with a pressure pump, the water pumping end of the pressure pump is fixedly connected with a water pumping pipe, the water outlet end of the pressure pump is fixedly connected with a water delivery pipe, and the right end of the water pumping pipe penetrates through the left side wall of the water storage tank and extends to the inside of the water storage tank.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, the utility model provides a steam turbine generator unit condensation, waste heat comprehensive recycling device, has the following beneficial effects:

[0018] The steam turbine generator unit condensation, waste heat comprehensive recycling device realizes the temperature reduction, pressure reduction and waste heat recovery of steam at different stages, the waste heat is efficiently transferred to the circulating water system under the joint action of the muffler and the first cooling coil and the second cooling coil, the energy waste is avoided, high-frequency noise is absorbed and reflected to the inside of the muffler, thereby reducing the interference of noise on the surrounding environment and improving the working environment quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is Figure 1 It is a local enlarged schematic view of A part in the middle;

[0021] Figure 3 It is a perspective view of the condenser and the water storage tank in the structure of the utility model;

[0022] Figure 4 It is a front schematic view of the utility model.

[0023] In the figure: 1, condenser; 101, first chamber; 102, second chamber; 2, stop valve; 3, baffle; 4, muffler; 401, outer cover; 402, sound insulation material; 403, inner cover; 5, first cooling coil; 6, second cooling coil; 7, drain valve; 8, water storage tank; 9, heat exchanger; 10, circulating water pipe; 11, pressure pump; 12, water suction pipe; 13, water delivery pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0025] Please refer to Figures 1 to 4 The utility model provides a kind of technical scheme: a kind of steam turbine generator unit condensation, waste heat comprehensive recycling device, including condenser 1 and the stop valve 2 of fixed connection in the left side of condenser 1, the inner top wall of condenser 1 is fixedly connected with baffle 3, the left side of baffle 3 is first chamber 101, the right side of baffle 3 is second chamber 102, the inner side of condenser 1 is equipped with auxiliary assembly for steam muffling and pressure reduction.

[0026] As Figure 1 Indicated, auxiliary assembly includes muffler 4, first cooling coil 5 and three second cooling coils 6 of fixed connection in the inner side of condenser 1.

[0027] The bottom of condenser 1 is equipped with recovery assembly for collecting condensate and heating utilization, and recovery assembly includes drain valve 7 of fixed connection in the drain port of the bottom of condenser 1, water storage tank 8 of fixed connection in the bottom end of drain valve 7, heat exchanger 9 of fixed connection in water storage tank 8, fixed connection in the right side of water storage tank 8 and circulating water pipe 10 of fixed connection in the water inlet end of heat exchanger 9.

[0028] It needs to be explained that muffler 4 and first cooling coil 5 are all located in first chamber 101, three second cooling coils 6 are all located in second chamber 102, and six hundred millimeters interval is equipped between the bottom of baffle 3 and the inner bottom wall of condenser 1.

[0029] Muffler 4 is jointly constituted by outer cover 401, sound insulation material 402 and inner cover 403, and a plurality of reflection holes are formed in the surface of outer cover 401 and the surface of inner cover 403, sound insulation material 402 is filled between outer cover 401 and inner cover 403, and three second cooling coils 6 are arranged equidistantly along the up-down direction of condenser 1.

[0030] The heat transfer end of the heat exchanger 9 passes through the right side wall of the water storage tank 8 and extends into the interior of the water storage tank 8. The circulating water pipe 10 is provided with four connection ends, and the connection ends of the first cooling coil 5 and the second cooling coil 6 are respectively connected to the corresponding connection ends.

[0031] A pressure pump 11 is fixedly connected to the left side of the water storage tank 8. A water pump pipe 12 is fixedly connected to the water pump 11's pumping end. A water delivery pipe 13 is fixedly connected to the water pump 11's outlet end. The right end of the water pump pipe 12 penetrates the left side wall of the water storage tank 8 and extends into the interior of the water storage tank 8.

[0032] In addition, the sound insulation material 402 is made of stainless steel wire mesh. The water storage tank 8 is a modified existing waste ion tank, used as a collection container for condensate. The outlet of the booster pump 11 is connected to an external soft water pipeline system through the water supply pipe 13, delivering heated condensate to the deaerator or other equipment for use in the production process.

[0033] The working principle of the above embodiments is as follows:

[0034] High-temperature and high-pressure steam first enters the condenser 1 through the shut-off valve 2 and then enters the first chamber 101 on its left side. During this process, the steam in the steam pipe is fully opened through the shut-off valve 2 to generate electricity, ensuring that the power generation efficiency of the generator set is maximized. After the steam enters the first chamber 101, the steam first enters the pipe connected to the silencer 4 arranged in this area to reduce the noise of the steam discharge and perform a cooling and pressure reduction. The silencer 4 is composed of an outer cover 401, an inner cover 403 and a sound insulation material 402 filled between the two. The surfaces of the outer cover 401 and the inner cover 403 are evenly distributed with several reflective holes. Through the principle of multi-level reflection and sound absorption, the high-pressure steam entering is suppressed and its pressure is reduced. The sound insulation material 402 further absorbs the noise energy of the steam and reduces the impact of noise on the outside world. At the same time, the first cooling coil 5 can perform a secondary cooling and pressure reduction on the steam discharged by the silencer and connect to the external circulating water pipe 10. The waste heat of the high-temperature steam is transferred to the circulating water in the first cooling coil 5 through the metal pipe wall to achieve preheating of the circulating water and reduce the temperature of the steam.

[0035] After initial treatment in the first chamber 101, the steam undergoes a third cooling and pressure reduction process through the baffle 3. It flows into the second chamber 102 through a 600 mm gap between the bottom and the inner wall of the condenser 1. As the steam flows through the second chamber 102, it exchanges heat with the second cooling coil 6 layer by layer. The residual heat is transferred to the circulating water inside the second cooling coil 6 through the pipe wall, gradually reducing the temperature and pressure of the steam for a fourth cooling and pressure reduction. The second cooling coil 6 is connected to the corresponding connection end of the external circulating water pipe 10 to form a continuous heat recovery loop. As the steam temperature decreases, a large amount of steam gradually condenses into condensate, which collects at the bottom of the inner side of the condenser 1, providing conditions for subsequent recovery and utilization.

[0036] Subsequently, through the drain pipe at the bottom of the condenser tank 1 into the drain valve 7, and under the control of the drain valve 7 using the pipeline into the downstream storage tank 8, each system soft pool, on the right side of the storage tank 8 is fixedly connected with the heat exchanger 9, in the heat exchanger 9, through the circulating water pipe 10 transported by the circulating water and condensate water in the storage tank 8 heat exchange, realize using steam waste heat to heat treatment for the subsequent use of condensate water to do preparatory work.

[0037] The electrical components appearing in the text are all electrically connected with the main controller and the power supply. The main controller can be a conventional known device such as a computer for control, and the existing disclosed power connection technology is not described in detail in the text.

[0038] It should be noted that the terms "comprising", "including", or any other variant 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 inherent to such a process, method, article or device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0039] Although the embodiments of the present application have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for the comprehensive recovery and utilization of condensate and waste heat from a steam turbine generator set, comprising a condensate tank (1) and a shut-off valve (2) fixedly connected to the left side of the condensate tank (1), characterized in that: The inner top wall of the condenser (1) is fixedly connected to a baffle (3). The left side of the baffle (3) is the first chamber (101), and the right side of the baffle (3) is the second chamber (102). The inner side of the condenser (1) is provided with auxiliary components for steam silencing and pressure reduction. The auxiliary components include a silencer (4) fixedly connected to the inside of the condenser (1), a first cooling coil (5), and three second cooling coils (6); The bottom of the condenser (1) is provided with a recovery component for collecting condensate and heating it for reuse.

2. The steam turbine generator set condensate and waste heat comprehensive recovery and utilization device according to claim 1, characterized in that: The silencer (4) and the first cooling coil (5) are both located in the first compartment (101), and the three second cooling coils (6) are all located in the second compartment (102). The bottom of the baffle (3) is provided with a 600 mm gap between it and the inner bottom wall of the condenser (1).

3. The steam turbine generator set condensate and waste heat comprehensive recovery and utilization device according to claim 1, characterized in that: The silencer (4) is composed of an outer cover (401), a sound insulation material (402), and an inner cover (403). The surface of the outer cover (401) and the surface of the inner cover (403) are provided with several reflective holes, and the sound insulation material (402) is filled between the outer cover (401) and the inner cover (403).

4. The steam turbine generator set condensate and waste heat comprehensive recovery and utilization device according to claim 1, characterized in that: The three second cooling coils (6) are arranged equidistantly along the vertical direction of the condenser (1).

5. The steam turbine generator set condensate and waste heat comprehensive recovery and utilization device according to claim 1, characterized in that: The recovery assembly includes a drain valve (7) fixedly connected to the drain outlet at the bottom of the condenser (1), a water storage tank (8) fixedly connected to the bottom of the drain valve (7), a heat exchanger (9) fixedly connected to the water storage tank (8) and the right side of the water storage tank (8), and a circulating water pipe (10) fixedly connected to the inlet of the heat exchanger (9).

6. The steam turbine generator set condensate and waste heat comprehensive recovery and utilization device according to claim 5, characterized in that: The heat transfer end of the heat exchanger (9) penetrates the right side wall of the water storage tank (8) and extends into the interior of the water storage tank (8). The circulating water pipe (10) is provided with four connection ends, and the connection ends of the first cooling coil (5) and the second cooling coil (6) are respectively connected to the corresponding connection ends.

7. The steam turbine generator set condensate and waste heat comprehensive recovery and utilization device according to claim 5, characterized in that: A booster pump (11) is fixedly connected to the left side of the water storage tank (8). A pumping pipe (12) is fixedly connected to the pumping end of the booster pump (11). A water supply pipe (13) is fixedly connected to the outlet end of the booster pump (11). The right end of the pumping pipe (12) penetrates the left side wall of the water storage tank (8) and extends into the interior of the water storage tank (8).

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