CN203146047U - Screw expander type smoke waste heat power generation device - Google Patents

Screw expander type smoke waste heat power generation device Download PDF

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Publication number
CN203146047U
CN203146047U CN 201320140295 CN201320140295U CN203146047U CN 203146047 U CN203146047 U CN 203146047U CN 201320140295 CN201320140295 CN 201320140295 CN 201320140295 U CN201320140295 U CN 201320140295U CN 203146047 U CN203146047 U CN 203146047U
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China
Prior art keywords
screw expander
valve
output terminal
stop valve
expansion joint
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Expired - Lifetime
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CN 201320140295
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Chinese (zh)
Inventor
赵春禾
王伟
年小丽
李国平
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SHANGHAI XZS HEAVY MACHINERY SYSTEM INTEGRATION CO Ltd
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SHANGHAI XZS HEAVY MACHINERY SYSTEM INTEGRATION CO Ltd
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Priority to CN 201320140295 priority Critical patent/CN203146047U/en
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Abstract

A screw expander type smoke waste heat power generation device is characterized by comprising a water heat exchanger, a first hand-operated stop valve, a first electric stop valve, a filter, a first flowmeter, a first expansion joint, a pneumatic fast valve and a pneumatic control valve. An output end of the pneumatic control valve is connected to a screw expander, the screw expander is connected with an electric generator through a reduction box, a heat emitting and steam output end of the screw expander is connected with a second expansion joint, an output end of the second expansion joint is connected to a one-way valve, an output end of the one-way valve is connected with a second electric stop valve and a second hand-operated stop valve in sequence, an output end of the second hand-operated stop valve is connected to a condenser, and an output end of the condenser is connected to a condensate tank. According to the screw expander type smoke waste heat power generation device, a heat exchanging system, a screw expander power generating system, a condensate system and an industrial circulating water system form an electric power generating system which can make efficient use of smoke waste heat with solid impurities. By means of the screw expander type smoke waste heat power generation device, energy is saved, and the environment is protected.

Description

A kind of screw expander formula fume afterheat electricity generating device
Technical field
The utility model relates to a kind of electricity generating device, relates in particular to the device of the fume afterheat generating that utilizes large scale industry smelting, boiler heating industry, specifically just relates to a kind of screw expander formula fume afterheat electricity generating device.
Background technique
In industrial production, waste heat energy ubiquity.The blast furnace gas of metallurgical iron industry, blast furnace gasification cooling water; The afterheat steam that the industrial heating furnace of hot-rolled process such as the wire rod of iron and steel enterprise, bar, thin plate, slab produces and open hearth gasification cooling water; The catalysis of petrochemical industry oil refining apparatus, cracking, coking cooling water; Roasting in the chemical industry gas washing in SA production, burn the sulphur operation, and all there is a large amount of waste heats in the flue gas that produces of various Industrial Stoves kiln hood and kiln tail etc.
Chinese patent 200920207915.4 discloses the low-quality steam waste heat electricity generating device of utilizing of a kind of pure low-temp low-pressure, and it adopts screw expansion motor.Steam is introduced into machine inner screw teeth groove, and lead-screw rotates, and along with screw rod rotates, the teeth groove rotation also lengthens gradually, volume increases, and medium step-down cooling is expanded and done work, and discharges from teeth groove.Power drives generator for electricity generation from the output of driving screw axle.Screw power machine is the power engine of positive displacement working principle, except leakage loss, and unknown losses seldom, mechanical efficiency is higher, even medium parameter or load change still can keep high efficiency.Can overcome low-quality afterheat steam thermal source and disperse, defective such as the not high and fluctuation of pressure is bigger.Because low-quality afterheat steam thermal source disperses, the not high and fluctuation of its pressure causes more greatly generator is had relatively high expectations, and adopts TZHW3 type no-brush synchronous generator, and its structure is the brushless excitation structure.No-brush synchronous generator is made up of main generator, AC exciter, rotating rectifier, automatic voltage regulator etc.Drive end has flange spigot and the mounting hole that docks with power engine, on the axle stacked elastic coupling flexible coupling is housed, and can directly dock installation with power engine.Have pressure regulation precision height, dynamic performance and reach characteristics such as volume is little, in light weight, installation and maintenance are simple, reliable well.Controller major control screw expander air intake valve and decompressor lubrication system, be furnished with programmable controller and display screen, display screen dynamically shows each valve state, screw expander inlet steam flow, gateway vapor pressure and temperature, decompressor rotating speed etc.Control system can realize manually control and control automatically, when power load reduces, manually adjusts generated energy.The generator control section mainly is the cabinet that is incorporated into the power networks, and the voltage regulator different according to consumer networks waveform situation configuration guarantees that electricity that generator sends is all sent into electrical network and do not influenced electrical network normally to move that the harmonic wave of electrical network does not influence the normal operation of generator.Control system has voltage demonstration, electric current demonstration, power demonstration, power factor demonstration etc.Cogeneration is carried out in the mass-energy source, and electric power is sent into electrical network, and the energy of waste is utilized again.But this electricity generating device is that inferior steam energy is utilized, be not suitable for the utilization again that contains the more flue gas energy of solid impurity, emit after all passing through simple removal of impurities at present for the waste heat energy that contains more solid impurity, caused the significant wastage of the energy.
The model utility content
Be not utilized effectively at the fume afterheat that contains solid impurity in a large number that produces in the existing industrial production; cause the technological deficiency of the very big wasting of resources; the utility model provides a kind of screw expander formula fume afterheat electricity generating device; it utilizes flue gas waste heat recovery system and screw expander that the flue gas waste heat recovery utilization is generated electricity; save the energy for the large size industrial enterprise use, protected environment.
Technological scheme
In order to realize above-mentioned technical purpose, the utility model designs a kind of screw expander formula fume afterheat electricity generating device, it comprises air-water heat exchanger, the output terminal of air-water heat exchanger is connected on first hand stop valve, the first hand stop valve output terminal is connected with first Electric Actuated Stop Valves, the first Electric Actuated Stop Valves output terminal is connected on the filter, the filter output terminal is connected on the first flow meter, the first flow meter is being controlled the switch of first Electric Actuated Stop Valves, the output terminal of first flow meter is connected on first expansion joint, the output terminal of first expansion joint is connected with pneumatic fast valve and pneumatic control valve in turn, the output terminal of pneumatic control valve is connected on the screw expander, screw expander is connected with generator after by speed reducer, screw expander heating steam output end is connected with second expansion joint, the output terminal of second expansion joint is connected on the one-way valve, the output terminal of one-way valve is connected with second Electric Actuated Stop Valves and second hand stop valve in turn, the output terminal of second hand stop valve is connected on the condenser, and the output terminal of condenser is connected on the condensate water tank;
The residual air output terminal of described condenser is connected with cooling tower, and the output terminal of cooling tower connects back condenser, and described cooling tower output terminal connects back on the loop of condenser circulating water pump and the 3rd hand stop valve are housed.
The condensed water of described condensate water tank output enters air-water heat exchanger through condensate pump and the 4th hand stop valve successively.
On the connecting pipeline of described the 4th hand stop valve and air water ventilation heat first thermometer, first pressure gauge and second flowmeter are housed successively.
System's heating coil valve is equipped with in the described first Electric Actuated Stop Valves parallel connection.
Second pressure gauge and second thermometer are housed on the connecting pipeline of described filter and first flow meter.
First hydrophobic valve is housed on the connecting pipeline of described first expansion joint and pneumatic fast valve.
The 3rd pressure gauge and the 3rd thermometer 31 are housed on the connecting pipeline of described screw expander and second expansion joint.
Second hydrophobic valve is housed on the connecting pipeline of described one-way valve and second Electric Actuated Stop Valves.
The 3rd flowmeter is housed on the connecting pipeline of described condenser and the 3rd hand stop valve.
Beneficial effect
The utility model utilizes heat-exchange system, screw expansion machine power generating system, condensate system and industrial circulating water system to form one can save the energy with containing the efficient power generation system of utilizing of solid impurity fume afterheat, has protected environment.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment
As shown in Figure 1, a kind of screw expander formula fume afterheat electricity generating device, it comprises air-water heat exchanger 1, the output terminal of air-water heat exchanger 1 is connected on first hand stop valve 2, first hand stop valve, 2 output terminals are connected with first Electric Actuated Stop Valves 3, first Electric Actuated Stop Valves, 3 output terminals are connected on the filter 4, filter 4 output terminals are connected on the first flow meter 5, first flow meter 5 is being controlled the switch of first Electric Actuated Stop Valves 3, the output terminal of first flow meter 5 is connected on first expansion joint 6, the output terminal of first expansion joint 6 is connected with pneumatic fast valve 7 and pneumatic control valve 8 in turn, the output terminal of pneumatic control valve 8 is connected on the screw expander 9, screw expander 9 is connected with generator 11 after by speed reducer 10, screw expander 9 heating steam output ends are connected with second expansion joint 12, the output terminal of second expansion joint 12 is connected on the one-way valve 13, the output terminal of one-way valve 13 is connected with second Electric Actuated Stop Valves 14 and second hand stop valve 15 in turn, the output terminal of second hand stop valve 15 is connected on the condenser 16, and the output terminal of condenser 16 is connected on the condensate water tank 17;
The residual air output terminal of described condenser 16 is connected with cooling tower 18, and the output terminal of cooling tower 18 connects back condenser 16, and described cooling tower 18 output terminals connect back on the loop of condenser 16 circulating water pump 19 and the 3rd hand stop valve 20 are housed.
The condensed water of described condensate water tank 17 outputs enters air-water heat exchanger 1 through condensate pump 21 and the 4th hand stop valve 22 successively.
On the connecting pipeline of described the 4th hand stop valve 22 and air water ventilation heat 1 first thermometer 23, first pressure gauge 24 and second flowmeter 25 are housed successively.
System's heating coil valve 26 is equipped with in 3 parallel connections of described first Electric Actuated Stop Valves.
Second pressure gauge 27 and second thermometer 28 are housed on the connecting pipeline of described filter 4 and first flow meter 5.
On the connecting pipeline of described first expansion joint 6 and pneumatic fast valve 7 first hydrophobic valve 29 is housed.
The 3rd pressure gauge 30 and the 3rd thermometer 31 are housed on the connecting pipeline of described screw expander 9 and second expansion joint 12.
Second hydrophobic valve 32 is housed on the connecting pipeline of described one-way valve 13 and second Electric Actuated Stop Valves 14.
The 3rd flowmeter 33 is housed on the connecting pipeline of described condenser 16 and the 3rd hand stop valve 20.
The working procedure of whole generating device is: flue gas is by air-water heat exchanger 1 heating water quality, make water become low pressure steam, steam filters by filter 4, prevent that impurity causes a devastating effect to system in the steam, steam shows the flow parameter state by first flow meter 5 then, enter generating pipe-line system first flow meter 5 as traffic monitoring equipment, assurance enters the steam flow of power generation system, SC sigmal control first Electric Actuated Stop Valves 3 of its feedback is regulated aperture, steam enters pneumatic fast valve and 7 pneumatic control valves 8 after by expansion joint the vibration of pipeline being cushioned, adjusting by two valves, steam enters screw expander 9 actings, the power that screw expander 9 provides is by driving translator 11 generatings after speed reducer 10 speed governing, first hydrophobic valve 29 is used for the discharging of steam condensate, prevents water hammer.The surplus vapour of screw expander 9 acting back steam enters condenser system after by second Electric Actuated Stop Valves 14, one-way valve 13 prevents that steam from reverse flow conditions occurring and taking place, second hydrophobic valve 32 is used for the discharging of steam condensate, prevent water hammer, second hand stop valve 15 cuts out the whole generating system pipeline during as system overhaul and uses.The surplus vapour of steam enters condenser 16 and cools off, and it is temporary that the condensed water that the cooling back forms enters condensate water tank 17, and condensed water enters air-water heat exchanger 1 by adjusting and recycles.The required industrial circulating water of condensing steam exhaust steam is taken from on-the-spot cooling tower 18, and industrial circulating water enters in the condenser 16 by the adjusting of circulating water pump 19 and the 3rd hand stop valve 20.
The utility model utilizes heat-exchange system, screw expansion machine power generating system, condensate system and industrial circulating water system to form one can save the energy with containing the efficient power generation system of utilizing of solid impurity fume afterheat, has protected environment.

Claims (9)

1. screw expander formula fume afterheat electricity generating device, it is characterized in that: it comprises air-water heat exchanger (1), the output terminal of air-water heat exchanger (1) is connected on first hand stop valve (2), first hand stop valve (2) output terminal is connected with first Electric Actuated Stop Valves (3), first Electric Actuated Stop Valves (3) output terminal is connected on the filter (4), filter (4) output terminal is connected on the first flow meter (5), first flow meter (5) is being controlled the switch of first Electric Actuated Stop Valves (3), the output terminal of first flow meter (5) is connected on first expansion joint (6), the output terminal of first expansion joint (6) is connected with pneumatic fast valve (7) and pneumatic control valve (8) in turn, the output terminal of pneumatic control valve (8) is connected on the screw expander (9), screw expander (9) is connected with generator (11) after by speed reducer (10), screw expander (9) heating steam output end is connected with second expansion joint (12), the output terminal of second expansion joint (12) is connected on the one-way valve (13), the output terminal of one-way valve (13) is connected with second Electric Actuated Stop Valves (14) and second hand stop valve (15) in turn, the output terminal of second hand stop valve (15) is connected on the condenser (16), and the output terminal of condenser (16) is connected on the condensate water tank (17);
The residual air output terminal of described condenser (16) is connected with cooling tower (18), the output terminal of cooling tower (18) connects back condenser (16), and described cooling tower (18) output terminal connects back on the loop of condenser (16) circulating water pump (19) and the 3rd hand stop valve (20) are housed.
2. a kind of screw expander formula fume afterheat electricity generating device as claimed in claim 1 is characterized in that: the condensed water of described condensate water tank (17) output passes through condensate pump (21) successively and the 4th hand stop valve (22) enters air-water heat exchanger (1).
3. a kind of screw expander formula fume afterheat electricity generating device as claimed in claim 2 is characterized in that: on the connecting pipeline of described the 4th hand stop valve (22) and air water ventilation heat (1) first thermometer (23), first pressure gauge (24) and second flowmeter (25) are housed successively.
4. a kind of screw expander formula fume afterheat electricity generating device as claimed in claim 1, it is characterized in that: system's heating coil valve (26) is equipped with in described first Electric Actuated Stop Valves (3) parallel connection.
5. as claim 1 or 3 described a kind of screw expander formula fume afterheat electricity generating devices, it is characterized in that: second pressure gauge (27) and second thermometer (28) are housed on the connecting pipeline of described filter (4) and first flow meter (5).
6. as claim 1 or 3 described a kind of screw expander formula fume afterheat electricity generating devices, it is characterized in that: on the connecting pipeline of described first expansion joint (6) and pneumatic fast valve (7) first hydrophobic valve (29) is housed.
7. as claim 1 or 3 described a kind of screw expander formula fume afterheat electricity generating devices, it is characterized in that: the 3rd pressure gauge (30) and the 3rd thermometer (31) are housed on the connecting pipeline of described screw expander (9) and second expansion joint (12).
8. as claim 1 or 3 described a kind of screw expander formula fume afterheat electricity generating devices, it is characterized in that: on the connecting pipeline of described one-way valve (13) and second Electric Actuated Stop Valves (14) second hydrophobic valve (32) is housed.
9. as claim 1 or 3 described a kind of screw expander formula fume afterheat electricity generating devices, it is characterized in that: on the connecting pipeline of described condenser (16) and the 3rd hand stop valve (20) the 3rd flowmeter (33) is housed.
CN 201320140295 2013-03-25 2013-03-25 Screw expander type smoke waste heat power generation device Expired - Lifetime CN203146047U (en)

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Application Number Priority Date Filing Date Title
CN 201320140295 CN203146047U (en) 2013-03-25 2013-03-25 Screw expander type smoke waste heat power generation device

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103147812A (en) * 2013-03-25 2013-06-12 上海西重所重型机械成套有限公司 Screw expander type flue gas waste heat power generation device
CN105457440A (en) * 2016-01-16 2016-04-06 杨德俊 Device for achieving flue gas power generation and removing harmful substance in flue gas simultaneously
WO2019081296A1 (en) * 2017-10-27 2019-05-02 Spirax-Sarco Limited Heat engine

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103147812A (en) * 2013-03-25 2013-06-12 上海西重所重型机械成套有限公司 Screw expander type flue gas waste heat power generation device
CN103147812B (en) * 2013-03-25 2016-03-30 上海西重所重型机械成套有限公司 A kind of screw expander formula flue gas waste heat power generation device
CN105457440A (en) * 2016-01-16 2016-04-06 杨德俊 Device for achieving flue gas power generation and removing harmful substance in flue gas simultaneously
CN105457440B (en) * 2016-01-16 2018-06-29 湘南学院 The device of flue gas harmful substance is removed in a kind of flue gas power generation simultaneously
WO2019081296A1 (en) * 2017-10-27 2019-05-02 Spirax-Sarco Limited Heat engine
US11022006B2 (en) 2017-10-27 2021-06-01 Spirax-Sarco Limited Heat engine

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