ORC exhaust steam turbine expander electricity generator

Technical Proposal

350KW ORC Electricity Power Generation

By 135℃ Hot Water

Contents

I. company breif introduction.

II. Technical plan.

1. net power calcualtion.

2. mehcanics.

3. heat exchanger

4. instruments and controls.

5. electrics.

6. machine list

I. This company is devoted to Research & Developing, manufacturing, sales and technical service of steam back pressure turbine, exhaust steam turbine, high speed blower drive, low temperature ORC power generation unit.

II. Technical plan

This project will adopt our ORC integrated with high speed permanent magnetic synchronous generator with Magnetically Levitated Bearing, to recover energy from 135℃ hot water. There is no dynamic-static seal on the unit.

The high speed synchronous alternator employ rare earth permanent magnetic rotor, its maximum efficiency can achieve 95% and more.

Magnetically Levitated Bearing use magnetic force to bear load. It is a new type bearing. There is no contact, no lubrication, no dynamic-static seal, longer service life and less maintenance cost.

The Magnetically Levitated Bearing used in this project is jointly developed by many top specialists in this field. They have a lot of experience of many years manufacturing and using magnetically levitated bearing, combination with the expertise of high speed turbine and mechanic rotors. We provide our customer with high efficiency stable reliable magnetically levitated bearing.

Its running noise level ＜80dB(A)。

Its power consumption is only about 5%～10% of conventional fluid dynamic sliding bearing

Its static and dynamic performance can be in-line controllable

The energy of hot water, by evaporator, evaporate R245fa and become vapor; The R245fa vapor works inside turbine expander to drive alternator, the generated electric current treated by rectifier and inverter, finally output about 285.2 kw electricity power.

The expected service life is designed about 20 years

The power generator module is assembled on a skid and its approximate size (L*W*H) is 3.2 m * 1.5 m * 1.6 m .

1. Net power output estimation

No	Name	Installed Qty	Working Qty	Single Unit power	Installed power	Working power	Needing factor	Active power(kW)
1	Medium circulation pump	1	1	22	22	17.6	1	17.59
2	Water circulation pump	1	1	30	30	12.7	1	12.74
3	Cooling tower fan	1	1	11.0	11.0	11.0	0.8	8.80
4	Hot water circulation pump	1	1	2.2	2.2	1.9	1	1.86
5	air compressor	1	1	7	7	5.5	0.2	1.10
6	electric executor	3	3	0.1	0.3	0.3	0.8	0.72
7	Instruments power source	1	1	2	2	1	1	1.00
8	Total self power consumption							43.8
9	Inverter power output							285.2
10	Net power output							241.4
11	Self power consumption ratio							15.4%

2. mechanics

1) Among the key parts( impeller, shaft, bearing, seal) of the turbine expander-alternator intergraded genset, its impeller, shaft and seal are manufactured by Suzhou Xida. The magnetically levitated bearing are jointly developed by specialist.

2) Provide spare part list and spare parts for two years running.

3) Provide special tools (in case there is any special tools).

4) Documents, such as drawings, instruction manuals in Chinese or English.

5) Outwards flange connection（cold medium, hot medium）pressure class PN20，according to HG20615-2009. Provide matched counter flange, gasket, bolts; Pipe adopt HG/T20553（Ia）series

6) Provide quality certificates of valve and pipe.

7) Provide manufacturing schedule and key quality control points.

8) Provide operation and maintenance training.

9) The common base of the unit is designed to accommodate the machines. The base is single piece whole in steel structure, with lifting lug, dranage panel and drainage hole, supplied with anchor bolts.

10) The seal performance of the unit is guaranteed running period no less than 8000 hours，leakage ≦0.05‰。

11) Technology, standard, acceptance standard：

GB50049-2011 《small thermo power plant design code》

GB/T29542-2013 《industrial waste gas energy recover turbine expander》

GB/T5578－2007《 fixed power generation type turbine technology standard》

GB/T13399－1992《steam turbine safety monitoring device technical standard》

3. Heat exchanger

Organic medium heat exchanger adopt solder welding plate heat exchanger. The standard material is stainless steel. It is pure copper or nickel solder vacuum welded.

The basic material of the heat exchanger determinate the type of medium to be used in the heat exchanger. Such as synthetic oil, mineral oil, organic solvent, fresh water, Ethylene glycol mixture, refrigerant, etc.

On front panel of the solder welding plate type heat exchanger, there is a sticker or stamped arrow. It indicates the front panel and inner/external circulation position. For example, if the arrow is upward, the left side of the arrow ( connection F1, F3) is inner circulation, and the right side (F2, F4) is external circulation.

Due to one more passage, external circulation presser drop is a little lower.

Construction：the solder welding plate type heat exchanger is composed of front and back cover plate and the corrugation passages between. The plate cover group have seal plate, gasket and cover plate.

Fluid structure: there is various flow way. Double course solder welding plate heat exchanger have two different type flow way:

type：concurrent or countercurrent.

Design working condition and certification:

• Europe: Pressure Equipment Directive (PED)

• America: Underwriters Laboratories (UL)

• Japan: High Pressure Gas Safety Assosiation (KHK)

4. instruments and controls

1) employ S7-200 series (Redundant point 15%)PLC，equip with MODUBUS communication port and relative elements；

2) Provide P&ID，instruments list and matched data sheet，I/O detailed list、address，PLC source sequence, logic control diagra；

3) Emergency shut-off valve adopt product of Zhejiang Sanfang or Taiwan Jindian, valve body material is WCB and valve core is CFB, Shanwuzhineng AVP-100 or Siemens positioner， SMC filter pressure reducing valve；

4) pressure transmitter adopt Chuanyihenhe EJA， with local LCD displayer，with HART protocol；

5) pressure guage is stainless steel made, M20*1.5 connection，Dial diameter 150mm，vibration proof， Tiankang or equivalent；

6) Temperature guage adopt PT100，M27*2 connector，Chuanyi or equivalent；

7) Adjusting valve (in case any) adopt Zhejiangsanfang or Taiwan Jindian . valve body material is WCB and valve core is SS304 , Shanwuzhineng AVP-100 or Siemens positioner，ASCO solenoid valve，SMC filter pressure reducing valve；

8) Instruments valve adopt SS304， M24*1.5 connector；

9) Pressure guide tube adopt SS304； tube diameter 14*2；

10) Instruments protection class IP65；

11) Responsible for control system design；

12) Equip with suitable UPS power source to meet various requirements, battery adopt domestic quality battery, the main unit adopt Emerson product；

13) Detail description of unit monitoring system, protection system, adjusting system and control system, provide with detail list；

14) All instruments control system are independently set, there is no relevance with producing device. Only communication protocol is adopted to transmit signals each other；

15) Provide layout drawing, take positions of control cabinets into consideration.s

16) technology, quality, acceptance standard

GB_50049-2011 《 small thermo power plant design code》

GBJ 93 《 industrial automation instruments engineering erection and acceptance standard》

GB50093-2002 《industrial automation instruments engineering erection and acceptance standard》

GBJ 131 《industrial automation instruments engineering erection quality inspection and evaluation standard》

HGJ 71 《 clean room construction and acceptance standard》

JB/T 5234 《 Industrial control computer system acceptance guideline》

5. Electrics

1) Adopt high speed generator, grid-connection voltage is 400V；

2) The alternator is jointly developed by Suzhou Xida and its exclusive supplier；

3) Alternator’s neutral point and transformer and current transformer in grid-connection cabinet are requested to have same transforming ratio, and belong to same lot of product from same manufacture.；

4) Provide primary and secondary electrics design；

5) Motor and electric cabinet protection class IP23。

6) Technical, quality and acceptance standard：

Q／GDW_480-2010 《Technical Regulation of distributed generation connection to power grid》

DL/T5136-2001 《thermo power plant, substation secondary wiring design technical code》

GB/1032-2005 《 3 phase asynchronous motor testing method》

DL/T5161.1-1997 《Electrics erection quality inspection and evaluation regulation》

DL/T5202-2004 《electric energy measuring system design technical regulation》

GB 50169 《 electric devices grounding installing and acceptance code》

GB 50254 《electrics installing engineering low voltage appliance erection and acceptance code》

Electric and electronics

The power output from alternator is～500Hz AC, it has to be treated with rectifier and inerter before connection to main power grid.

This project adopt grid-connection inverter BNWG-350KS with rectifier

Technical parameter：

Medium pump

Adopt shielded electric motor pump

Technical specification：

Fluid storage tank

￠700×770；

Installing height 670， total height1600；

Inlet flange：DN65 PN20；

Outlet flange：DN50 PN20。

Slight oil screw air compressor

In case compressed air for instruments use is not available, the Buyer should purchase air compressor.

model：G7FFTM-7.5

manufacture： Wuxi Atlas Copco Co.Ltd

Technical Data

Nominal Power	KW	7
Capacity	m3/min	1.27
Full Load Pressure	Bar(g)	7.5
Noise Level	DB(A)	66
Discharge Temp.		Ambient Temp.+8℃
Start Type		Y-Δstarter
Safety Grade		IP55
Insulation Grade		F
outlet pressure dew point	℃	3~7
Outlet oil content	PPM	2
Outlet Particle matter Size	µm	3
Storage tank	L	270
Power Supply	V/Hz/Ph	380/50/3
Cooling Type		AIR Cooled
Package Dimensions	mm	1500/623/1468
Package Weight	Kg	381

6. Machinery List to Be delivered and Prices

ORC heat exchanging system
item	name	specification	unit	qty	Unit price（USD）	Total price（USD）	Remark
1	Organic Medium Evaporator	HG/T 20615-2009 PN20heat exchanger type：plate	set	1			SWEP/ARO
2	Organic medium regenerator	HG/T 20615-2009 PN20heat exchanger type：plate	set	1			SWEP/ARO
3	Organic medium condenser	HG/T 20615-2009 PN20heat exchanger type：plate or shell-tube	set	1			SWEP/ARO
4	Organic medium	R245fa		0			Honeywell
5	Cooling tower	300t/h	set	0			Liangyi
6	Circulation water pump	medium：circulation water；work temperature：atomsphere；	set	0
7	Vacuum pump	2BV	set	0
8	Air compresser	Slight oil screw type air compressor	set	1			(intergrated with frozen drier, incl.storage tank)
9	Installing materials		set	1
10	Ocean freight to customer port（USD）
11	Price FOB China port（USD）

Skid Mounted type ORC Genset
item	name	specification	unit	qty	Unit price（USD）	Total price（USD）	Remark
1	Turbine expander integrated with alternator	XD-ORCT-315，400V	set	1			Centripetal turbine, Magnetically Levitated Bearing, synchronous alternator
2	Rectifier and inverter	350kW,400V,3 pahse	set	1			Zhonghang/Aobos
3	Pneumatic butterfly valve	PN20，WCB	set	2			Zhejiang sanfang/Taiwan Jindian
4	Organic medium pump	vertical；medium：R245fa；shielded motor pump	set	1			Hefei Shinhoo/ Dalian Teikoku
5	Control instruments	S7-200 series (Redundant point 15%)	set	1
6	Ocean freight to customer port（USD）
7	Price FOB China port（USD）

All the information, data, prices are just for reference and maybe changed without prior notice . The final official commercial offer subject to final design.