CN205605257U - Steam turbine power generation system and low -pressure steam turbine rotor - Google Patents

Abstract

The utility model provides a steam turbine power generation system and low -pressure steam turbine rotor, in the wayside heat recovery equipment of diving that leads to in succession of the low pressure steam pipe of steam turbine, the heat recovery equipment of diving includes hot water tank, absorption heat pump, cooling tower and air conditioner device, the steam input pipe of hot water tank connects bypass in low pressure steam pipe way, and at the first hot -water line of hot water entry linkage of hot water tank, the hot water export communicates in first hot -water line through absorption heat pump with the second hot -water line, cooling tower's an entry linkage condenser tube, the export feeds through in a condenser tube through absorption heat pump with the 2nd condenser tube, first frozen water pipe is connected to the cold medium inlet of air conditioner device, and cold medium export communicates in first frozen water pipe through absorption heat pump with second frozen water pipe, the part low pressure steam who sees off through the steam turbine gets into the mixed hot water of hot water tank, can utilize steam latent heat by effective recycling to improve hot water temperature supply absorption heat pump and move, make absorption heat pump freeze to cold medium, use with supply air conditioner device.

Description

Steam turbine generation system

Technical field

This utility model relates to a kind of electricity generation system, has recovery of latent heat particularly to one and utilizes The steam turbine generation system of function and/or cogeneration system.

Background technology

General power plant electricity generation system uses thermal power generation, mostly such as Fig. 1 in cogeneration system Shown in, the fuel that first burns, combustion gas or nuclear energy fuel heating boiler 91 internal water, to send height Pressure steam is by steam turbine 92, and drives electromotor 93 operating generating, and steam is by condensation Device 94 transfers condensed water to, then condensed water via water pump 95, heater 96, deaerator 97 and Water pump 98 carries, with feed hot water supply boiler 91 use.

Condenser 94 in generation current system uses cooling water or sea water or air, makes steam lead to Cross condenser 94 and become condensed water, that is it is latent to utilize a large amount of cooling water or air to absorb steam Heat.But this kind of condenser 94 is when using a large amount of cooling water or air, i.e. must expend electric power With expensive cost, and waste steam latent heat in rain, improve the most further.

Utility model content

Main purpose of the present utility model and use effect are, utilize the portion that steam turbine is sent Part low-pressure steam enters hot water storgae mixed hot water, and can effective recycling steam latent heat, with Improve hot water temperature to supply absorption heat pump and run, make the absorption heat pump can be for cold medium Freeze, to supply the use of air-conditioning device, and reach steam latent heat and recycle function.

For reaching above-mentioned purpose, steam turbine generation system of the present utility model, by the high pressure of boiler Steam pipework be sequentially connected with steam turbine, low pressure steam line, condenser, condensate line, Heater, deaerator and boiler feedwater pipeline, and it is connected with latent heat in succession in low pressure steam pipe roadside Recycling equipment, this recovery of latent heat utilizes equipment to include hot water storgae, absorption heat pump, cold But water tower and air-conditioning device, wherein: this hot water storgae has hot water inlet, hot water outlet and steam Entrance, by steam inlet with steam input pipe connecting bypass in low pressure steam line, hot water inlet Connecting and have the first hot-water line, hot water outlet connects the second hot-water line, and the second hot-water line end Through absorption heat pump to be communicated in the first hot-water line；This cooling tower has entrance and outlet, Entrance connects the first cooling water pipe, and outlet connection has the second cooling water pipe, and the second cooling water Pipe end through absorption heat pump to be communicated in the first cooling water pipe；This air-conditioning device has cold Jie Matter entrance and cold media outlet, cold medium inlet connects the first frozen water pipe, and cold media outlet is even Be connected to the second frozen water pipe, and the second frozen water pipe end through absorption heat pump to be communicated in the first ice Water pipe.

Aforesaid steam turbine generation system, wherein this first hot-water line conveying hot water enters hot water Inside groove, this steam input pipe conveying low-pressure steam enters in hot water storgae, makes low-pressure steam mix Hot water is to improve hot water temperature.

Aforesaid steam turbine generation system, wherein this steam input pipe concatenation one has temperature and detects Survey the first control valve of device, and temperature monitor is used for detecting hot water storgae internal temperature.

Aforesaid steam turbine generation system, wherein the second hot-water line of this hot water storgae is serially connected with One pump, is connected with hot water discharge pipe, and the connection of hot water discharge pipe's end in succession by this second hot-water line In condensate line, this hot water discharge pipe concatenates second control valve with water level detector, And water level detector is for detecting the water level of hot water storgae internal hot-water.

Aforesaid steam turbine generation system, wherein this condensate line concatenation is connected with condensed water mutually Groove, this hot water discharge pipe's end is communicated in condensate draining.

Aforesaid steam turbine generation system, wherein the second cooling water pipe concatenation of this cooling tower There is the second pump.

Aforesaid steam turbine generation system, wherein the first frozen water pipe concatenation phase of this air-conditioning device It is connected with ice water tank and the 3rd pump.

The beneficial effects of the utility model by: the part low-pressure steam sent by steam turbine is entered Enter hot water storgae mixed hot water, it is possible to effective recycling steam latent heat, to improve hot water temperature's confession Answer absorption heat pump to run, make absorption heat pump can freeze for cold medium, for Air-conditioning device is answered to use.

Accompanying drawing explanation

Fig. 1 is existing steam turbine generation system configuration figure；

Fig. 2 is this utility model embodiment steam turbine generation system configuration figure ()；

Fig. 3 is this utility model embodiment steam turbine generation system configuration figure (two).

[symbol description]

1, boiler

11, steam turbine

111, high pressure vapor line

112, low pressure steam line

12, electromotor

13, condenser

131, condensate line

14, condensate draining

15, pump

16, heater

17, deaerator

171, boiler feedwater pipeline

18, pump

2, hot water storgae

21, hot water inlet

211, the first hot-water line

22, hot water outlet

221, the second hot-water line

23, steam inlet

231, steam input pipe

24, hot water discharge pipe

25, the first control valve

251, temperature monitor

26, the first pump

27, the second control valve

271, water level detector

3, absorption heat pump

4, cooling tower

41, entrance

411, the first cooling water pipe

42, outlet

421, the second cooling water pipe

43, the second pump

5, air-conditioning device

51, cold medium inlet

511, the first frozen water pipe

52, cold media outlet

521, the second frozen water pipe

53, ice water tank

54, the 3rd pump

91, boiler

92, steam turbine

93, electromotor

94, condenser

95, water pump

96, heater

97, deaerator

98, water pump.

Detailed description of the invention

Relevant this utility model for reaching above-mentioned purpose, the technological means used and effect thereof, Now enumerate possible embodiments, and coordinate accompanying drawing to be described as follows:

First, Fig. 2 and Fig. 3, this utility model steam turbine generation system and/or vapour are referred to Electricity cogeneration system has steam latent heat and recycles function, as it can be seen, steam turbine power production system In system, it is sequentially to be contacted by the high pressure vapor line 111 of boiler 1 to be connected with steam turbine 11, low mutually Pressure steam pipework 112, condenser 13, condensate line 131, condensate draining 14, pump 15, Heater 16, deaerator 17, boiler feedwater pipeline 171 and pump 18, steam turbine generation system Sent high steam by boiler 1 heating equally, make steam sequentially by steam turbine 11, condenser 13 and change into as condensed water, and Steam Actuation steam turbine 11 is ordered about electromotor 12 and is operated Generating, and condensed water is fed in boiler 1 via moisturizing heater 16 and deaerator 17 again.

Steam turbine generation system of the present utility model uses back pressure turbine 11, and in low Pressure steam pipework 112 side is connected with recovery of latent heat in succession and utilizes equipment, and this recovery of latent heat utilizes equipment Include hot water storgae 2, absorption heat pump 3, cooling tower 4 and air-conditioning device 5, wherein:

This hot water storgae 2 has hot water inlet 21, hot water outlet 22 and steam inlet 23, by steaming Vapour entrance 23 with steam input pipe 231 connecting bypass in low pressure steam line 112, hot water inlet 21 connections have the first hot-water line 211, and hot water outlet 22 connection has the second hot-water line 221, and Second hot-water line 221 end through absorption heat pump 3 to be communicated in the first hot-water line 211.Such as figure Shown in, the second hot-water line 221 of hot water storgae 2 is serially connected with the first pump 26, and the second hot-water line 221 sides are connected with hot water discharge pipe 24 in succession, and hot water discharge pipe 24 end is communicated in condensate pipe Road 131 or condensate draining 14.Concatenate one at steam input pipe 231 and there is temperature monitor 251 The first control valve 25, to control open/close states and steam flow, and temperature monitor 251 is used In detecting hot water storgae 2 internal temperature.Hot water discharge pipe 24 then concatenates one and has water level detector Second control valve 27 of 271, to control open/close states and flow, and water level detector 271 is used Water level in detecting hot water storgae 2 internal hot-water.

This cooling tower 4 has entrance 41 and outlet 42, and entrance 41 connects the first cooling water Pipe 411, and export 42 connections and have the second cooling water pipe 421, go here and there at the second cooling water pipe 421 Be connected to the second pump 43, and the second cooling water pipe 421 end through absorption heat pump 3 to be communicated in First cooling water pipe 411.

This air-conditioning device 5 has cold medium inlet 51 and a cold media outlet 52, and using frozen water as Cold medium, connects in cold medium inlet 51 and has the first frozen water pipe 511, and the first frozen water pipe 511 Concatenation is connected with ice water tank 53 and the 3rd pump 54 mutually, and cold media outlet 52 connection has the second frozen water Pipe 521, and the second frozen water pipe 521 end through absorption heat pump 3 to be communicated in the first frozen water pipe 511。

When steam turbine generation system carries out operating generating, boiler 1 heating send high pressure and steam Vapour, is sequentially changed into steam by steam turbine 11, condenser 13 as condensed water, utilizes steam Pushing turbine 11 orders about electromotor 12 and carries out operating generating, and condensed water is used via moisturizing Heater 16 and deaerator 17 are fed in boiler 1.And when steam turbine 11 is via low-pressure steam When pipeline 112 sends low-pressure steam, the low-pressure steam of part is sent into recovery of latent heat and is utilized equipment, Meanwhile, the first control valve 25 is opening, and the second control valve 27 then remains turned-off, First hot-water line 211 carries 83～85 degree of hot water Celsius and enters hot water storgae 2 inside, and steam is defeated Enter pipe 231 to carry in low-pressure steam entrance hot water storgae 2, utilize low-pressure steam mixed hot water to carry High hot water temperature reaches 88～90 degree Celsius, and then hot water is via the second hot-water line 221 and first Pump 26 cycles through absorption heat pump 3 and the first hot-water line 211, to utilize hot water temperature to supply Absorption heat pump 3 runs, and the cooling water of cooling tower 4 then cycles through the first cooling Water pipe the 411, second cooling water pipe 421 and absorption heat pump 3 carry out heat exchange, and air-conditioning device The cold medium ice water circulation of 5 by the first frozen water pipe 511, ice water tank 53, the 3rd pump 54, the Two frozen water pipes 521, absorption heat pump 3, then coordinate absorption heat pump 3 to the second frozen water pipe 521 12 degree of frozen water Celsius freeze, and 7 degree of frozen water Celsius can be sent by the first frozen water pipe 511, Use with supply air-conditioning device 5, and reach steam latent heat and recycle function.

Steam turbine generation system of the present utility model and recovery of latent heat utilize equipment to be in operation, If the temperature of hot water storgae 2 is too high, utilizes temperature monitor 251 to detect, and control Make the first control valve 25 and reduce steam flow, control hot water storgae 2 with automatic adjustment and maintain suitable temperature Degree.And when the water level of hot water storgae 2 internal hot-water is too high, utilize water level detector 271 to carry out Detecting, and control the second control valve 27 and open, make too much hot water by hot water discharge pipe 24 And second control valve 27, to drain into condensate draining 14, make hot water storgae 2 internal hot-water to maintain Suitably water level, then can control to close the second control valve 27.

Embodiment provided above only uses this utility model for convenience of description, and is not in a limitative way, Without departing from this utility model scope, the various letters that those skilled in the art can make Easily change and modification, all must include in this utility model claims.

Claims (7)

1. a steam turbine generation system, it is characterised in that this system is steamed by the high pressure of boiler Vapor pipeline is sequentially connected with steam turbine, low pressure steam line, condenser, condensate line, adds Hot device, deaerator and boiler feedwater pipeline, and be connected with latent heat in succession in low pressure steam pipe roadside and return Receipts utilize equipment, and this recovery of latent heat utilizes equipment to include hot water storgae, absorption heat pump, cooling Water tower and air-conditioning device, wherein:

This hot water storgae has hot water inlet, hot water outlet and steam inlet, by steam inlet to steam Vapour input pipe connecting bypass is in low pressure steam line, and hot water inlet connects the first hot-water line, heat Water out connects the second hot-water line, and the second hot-water line end through absorption heat pump with connection In the first hot-water line；

This cooling tower has entrance and outlet, and entrance connects the first cooling water pipe, and outlet is even Be connected to the second cooling water pipe, and the second cooling water pipe end through absorption heat pump to be communicated in One cooling water pipe；

This air-conditioning device has cold medium inlet and a cold media outlet, and cold medium inlet connects the One frozen water pipe, cold media outlet connects the second frozen water pipe, and the second frozen water pipe end is through inhaling Receipts formula heat pump is to be communicated in the first frozen water pipe.

Steam turbine generation system the most according to claim 1, it is characterised in that this is years old One hot-water line conveying hot water enters inside hot water storgae, and this steam input pipe conveying low-pressure steam enters In hot water storgae, make low-pressure steam mixed hot water to improve hot water temperature.

Steam turbine generation system the most according to claim 2, it is characterised in that this steaming Vapour input pipe concatenation one has the first control valve of temperature monitor, and temperature monitor is used for detecing Calorimetric tank internal temperature.

Steam turbine generation system the most according to claim 2, it is characterised in that this heat Second hot-water line of tank is serially connected with the first pump, is connected with hot water emission in succession by this second hot-water line Managing, and hot water discharge pipe's end is communicated in condensate line, this hot water discharge pipe concatenates one to be had Second control valve of water level detector, and water level detector is for detecting hot water storgae internal hot-water Water level.

Steam turbine generation system the most according to claim 4, it is characterised in that this is cold Condensate line concatenation is connected with condensate draining mutually, and this hot water discharge pipe's end is communicated in condensate draining.

Steam turbine generation system the most according to claim 1, it is characterised in that this is cold But the second cooling water pipe of water tower is serially connected with the second pump.

Steam turbine generation system the most according to claim 1, it is characterised in that this sky The the first frozen water pipe concatenation adjusting device is connected with ice water tank and the 3rd pump mutually.