Energy Management Contract:
Energy Management Contract, referred to as EMC, is a new market-based energy-saving mechanism. Its essence is an energy-saving investment method that pays the full cost of energy-saving projects with reduced energy costs. This energy-saving investment method allows customers to use future energy-saving benefits to upgrade factories and equipment to reduce current operating costs.
Our company implements project transformation in a benefit-sharing business model of energy management contract, and bears the technical and investment risks of the project. During the contract period, both parties share the energy-saving benefits according to the agreed proportion. We are responsible for the inspection and maintenance of the equipment. After the contract period, the project property rights will be transferred to the owner free of charge.
Working Principle
The basic principle of steam turbine operation is that the blades are affected by steam to produce a reaction force that pushes the impeller to rotate. On this basic principle, Extraction back pressure steam turbine reduces the pressure between the inlet and exhaust ends by extracting some of the steam. Therefore, the steam can fully release energy during the expansion process in the steam turbine and improve the efficiency of the steam turbine.
Application Fields:
The basic principle of the extraction back pressure steam turbine is a commonly used cogeneration equipment, and its basic principle is to use fuel combustion to produce high-temperature and high-pressure steam, drive the steam turbine to rotate, thereby generating mechanical work, and at the same time extract part of the steam for heating. The economy of this kind of unit is similar to that of the back-pressure unit, and the economy is better under the design working conditions, but the adaptability to load changes is poor.
·Power Generation: Thermal systems in high-energy-consuming industrial sectors such as chemical engineering, steel, coking, combined heat and power supply, papermaking, printing and dyeing, sugar refining, metallurgy, and building materials. It replaces desuperheating and pressure-reducing devices for power generation.
·Industrial Drive: Drives large machinery such as compressors and pumps.
Shandong Xinlong Group Co.,Ltd(China's top 500),TechnicalService Project of Flow Structure Conversion and EfficiencyIncreasing of 2x55MWExtraction Condensing Steam TurbineUnit 3#&4#
After the technical conversion of the flow structure of the two units, the energy saving and efficiency improvement ratios of Unit 3
and unit 4 were 7.3% and 7.52%, respectively, under the same rated operating conditions, both far exceeding the 4% and 5% assessment clauses stipulated in the contract. The energy saving electricity was no less than 4015kw/h and 4136kw/h, and the annual economic benefits were no less than RMB 16.06 million and RMB 16.54 million. Both the energy-saving and social
benefits of the project are significant.
On January 21 and December 20, 2021, our company signed the contract of two units conversion projects, respectively, and implemented the energy-saving technical conversion and efficiency improvement of the unit flow structure by paying the technical service fee in batches. The two units operate at a daily electrical load of about 55MW, and the steam extraction is used for external people's livelihood heating supply, and the excess steam is condensed to produce electricity.
Steam turbine parameters
| model |
Power(MW) |
Steam inlet parameters |
Steam consumption(kg/kw.h) |
Steam intake(t/h) |
Speed(r/min) |
| |
|
Pressure(Mpa) |
Temperature(ºC) |
|
|
|
| B1.5-3.43/0.981 |
1.5 |
3.43 |
435 |
14.2 |
21.3 |
6500/3000 |
| B3-3.43/0.49 |
3 |
3.43 |
435 |
938 |
29.4 |
6500/3000 |
| B4.5-8.83/2.2 |
4.5 |
8.83 |
535 |
12.2 |
54.9 |
6500/3000 |
| B6-0.98/0.245 |
6 |
0.981 |
280 |
16.0 |
96.0 |
3000 |
| B7-4.9/0.7 |
7 |
4.9 |
470 |
9.55 |
66.9 |
3000 |
| B7.5-3.43/0.49 |
7.5 |
3.43 |
435 |
9.6 |
72 |
3000 |
| B7-8.83/3.63 |
7 |
8.83 |
535 |
18.28 |
128 |
6500/3000 |
| B9-4.9/0.49 |
9 |
4.9 |
470 |
7.90 |
71.1 |
3000 |
| B12-4.9/1.27 |
12 |
4.9 |
470 |
12.08 |
145 |
3000 |
| B15-4.9/0.98 |
15 |
4.9 |
470 |
10.30 |
154.5 |
3000 |
| B25-4.9/0.98 |
25 |
4.9 |
470 |
10.25 |
256.3 |
3000 |
| B30-4.9/0.98 |
30 |
4.9 |
470 |
10.18 |
305.4 |
3000 |
| B22-9.0/0.98 |
22 |
9.0 |
535 |
7.25 |
159.5 |
3000 |
| B20-8.83/4.1 |
20 |
8.83 |
535 |
19.1 |
382 |
3000 |
| B32-12.7/0.98 |
32 |
12.7 |
535 |
7.13 |
228.16 |
3000 |
| model |
Power(MW) |
Steam inlet parameters |
Steam consumption(kg/kw.h) |
Steam intake(t/h) |
Speed(r/min) |
exhaust pressure
(Mpa) |
| |
|
Pressure(Mpa) |
Temperature(ºC) |
|
|
|
|
| N1.2-0.155 |
1.2 |
0.155 |
195 |
9.76 |
11.71 |
3000 |
0.007 |
| N4-0.88 |
4 |
0.88 |
280 |
6.5 |
26 |
3000 |
0.008 |
| N6-3.43 |
6 |
3.43 |
435 |
4.6 |
27.6 |
3000 |
0.0076 |
| N15-4.9 |
15 |
4.9 |
470 |
3.95 |
59.25 |
3000 |
0.007 |
| N25-8.83 |
25 |
8.83 |
535 |
3.58 |
89.5 |
6500/3000 |
0.006 |
| N15-3.43 |
15 |
4.9 |
470 |
4.1 |
61.5 |
3000 |
0.007 |
| model |
Power(MW) |
Steam inlet parameters |
Pumping parameters |
Steam consumption(kg/kw.h) |
Speed(r/min) |
exhaust pressure
(Mpa) |
| |
|
Pressure(Mpa) |
Temperature(ºC) |
Flow
(t/h) |
Pressure(Mpa) |
Flow
(t/h) |
|
|
|
| CB15-3.43/0.98/0.53 |
15 |
3.43 |
435 |
150.2 |
0.98 |
20 |
10 |
3000 |
0.53 |
| CB14.1-4.9/3.0/0.9 |
14.1 |
4.9 |
470 |
150 |
3 |
12 |
10.638 |
3000 |
0.9 |
| CB13.6-4.9/2.5/0.98 |
13.6 |
4.9 |
470 |
152.6 |
2.5 |
12 |
11.22 |
3000 |
0.98 |
| CB10-8.83/0.98/0.6 |
10 |
8.83 |
535 |
75 |
0.98 |
25 |
7.5 |
3000 |
0.6 |
| CB25-8.83/2.8/0.98 |
25 |
8.83 |
535 |
219 |
2.8 |
70 |
8.76 |
3000 |
0.98 |
| CB30-9.2/3.0/0.8 |
30 |
9.2 |
535 |
239.5 |
3 |
60 |
7.98 |
3000 |
0.8 |
| CB18-9.2/2.8/0.98 |
18 |
9.2 |
535 |
160.2 |
2.8 |
40 |
8.9 |
3000 |
0.98 |
| CB16-12.7/2.5/1.76 |
16 |
12.7 |
535 |
152 |
2.5 |
35 |
9.5 |
3000 |
1.76 |
Generator parameters
| model |
Power(MW) |
Steam inlet parameters |
Pumping parameters |
Steam consumption(kg/kw.h) |
Speed(r/min) |
exhaust pressure
(Mpa) |
| |
|
Pressure(Mpa) |
Temperature(ºC) |
Flow
(t/h) |
Pressure(Mpa) |
Flow
(t/h) |
|
|
|
| C15-3.43/0.98 |
15 |
3.43 |
435 |
101.5 |
0.98 |
45 |
6.76 |
3000 |
0.007 |
| C12-6.5/1.2 |
12 |
6.5 |
470 |
105.3 |
1.2 |
75 |
7.02 |
3000 |
0.007 |
| C20-8.83/0.98 |
20 |
8.83 |
535 |
90 |
0.98 |
45 |
6 |
3000 |
0.007 |
| C25-3.43/0.98 |
25 |
3.43 |
435 |
101.5 |
0.98 |
45 |
6.76 |
3000 |
0.007 |
| C30-3.43/0.98 |
30 |
3.43 |
435 |
101.5 |
0.98 |
45 |
6.76 |
3000 |
0.007 |
| C55-8.83/0.98 |
55 |
8.83 |
535 |
90 |
0.98 |
45 |
6 |
3000 |
0.007 |
| C60-8.83/0.98 |
60 |
8.83 |
535 |
90 |
0.98 |
45 |
6 |
3000 |
0.007 |
1. Question: How to determine product parameters?
Reply: Design steam turbine units with different working conditions according to the customer's current production technical parameters to meet production needs.
2. Question: How to determine product quality?
Reply: You can do it through on-site field visits and provide relevant inspection and testing reports and other materials.
3. Question: How to ensure after-sales service?
Reply: The company's technical staff solves difficult problems online and offline.
Audited Supplier 
){kind=link}