Essential details
Shipping:Ocean freight
Product Introduction
Application and characteristics
The structure principle of the new water ejector breaks the traditional design model of vertical cross-flow of water and gas, we know that the energy required for gas phase movement comes from the water beam, so to let the water quality point entrap more gas to improve the condenser vacuum, to ensure safe operation must:
1. Select the flow rate of water intake and the cross section of a single water bundle in the suction chamber, so that the water bundle can achieve dispersion, and at the same time, the water quality point after dispersion has momentum, and the most gas is trapped with the least amount of water, which is the minimum condition for achieving low consumption.
2. The contact between the indoor water quality point and the air is the most uniform, and the gas trapped by the water bundle can be pressed into the throat.
3, stop the initial section of the gas phase backflow bias, so as not to impact the four walls and vibration wear. This cannot be achieved by lengthening the throat alone. This is the geometric structure of suction chamber, throat shape, throat diameter nozzle area ratio, throat length throat diameter ratio, water inlet parameters (water pressure) and so on.
4, the structure of the pipe is divided into three parts: gas pressurization section, vortex strengthening section and pressurization section. It can achieve uniform mixing of two-phase flow, reduce gas resistance, eliminate gas bias, increase energy exchange of two phase particles, and minimize energy loss by using residual velocity.
advantage
The above structural principle is difficult to achieve in the water ejector produced by the traditional design method, which is also the main reason why the efficiency of the ejector is difficult to improve. According to the principle that the end of the equal section pipe still has a high flow rate and the principle of non-interference between the whole pipe, our factory has realized the post-type residual speed air extractor provided by the subsection pumping of the lower section of the pipe and the outlet, and the gas is not condensed in the separate field suction shaft seal heater of the turbine and the water chamber of the cooler.
The structure principle of the new water ejector breaks the traditional design model of vertical cross-flow of water and gas, we know that the energy required for gas phase movement comes from the water beam, so to let the water quality point entrap more gas to improve the condenser vacuum, to ensure safe operation must:
1. Select the flow rate of water intake and the cross section of a single water bundle in the suction chamber, so that the water bundle can achieve dispersion, and at the same time, the water quality point after dispersion has momentum, and the most gas is trapped with the least amount of water, which is the minimum condition for achieving low consumption.
2. The contact between the indoor water quality point and the air is the most uniform, and the gas trapped by the water bundle can be pressed into the throat.
3, stop the initial section of the gas phase backflow bias, so as not to impact the four walls and vibration wear. This cannot be achieved by lengthening the throat alone. This is the geometric structure of suction chamber, throat shape, throat diameter nozzle area ratio, throat length throat diameter ratio, water inlet parameters (water pressure) and so on.
4, the structure of the pipe is divided into three parts: gas pressurization section, vortex strengthening section and pressurization section. It can achieve uniform mixing of two-phase flow, reduce gas resistance, eliminate gas bias, increase energy exchange of two phase particles, and minimize energy loss by using residual velocity.
advantage
The above structural principle is difficult to achieve in the water ejector produced by the traditional design method, which is also the main reason why the efficiency of the ejector is difficult to improve. According to the principle that the end of the equal section pipe still has a high flow rate and the principle of non-interference between the whole pipe, our factory has realized the post-type residual speed air extractor provided by the subsection pumping of the lower section of the pipe and the outlet, and the gas is not condensed in the separate field suction shaft seal heater of the turbine and the water chamber of the cooler.
Product series
New rotary jet water ejector series products are divided into large and light series, a total of eight specifications for 50-600MW large condensing turbine, light products a total of three specifications for 25MW below the medium and small condensing turbine.
Specifications for small product series are listed below
Extraction type | Suction capacity | Auxiliary pump | Suitable for steam turbine group capacity | |
pump | Electric machine | |||
SH-8 | 7.0kg/h 0.004Mpa | 4BA-12A Q85m³ /h H28.6m | Y160m1-2 11KW | N3MW and below |
SH-10 | 9.0kg/h 0.004Mpa | IS100-80-160 Q100m³ /h H32m | Y160m2-2 15KW | N6-N12MW |
SH-12 | 11.0kg/h 0.004Mpa | IS25-80-200B Q139m³/h H38m | Y180M-2 22KW | N25MW |
SH-15 | 15.5kg/h 0.004Mpa | IS125-100-200B 172m³/h H37.08m | Y200U1-2 30KW | N25MW-N50MW |
SH-18 | 18.0kg/h 0.004Mpa | IS125-100-200A 185.19m³/h H42.87m | Y200U2-2 37KW | N50MW |