A wholly foreign-owned pharmaceutical company mainly produces eye care solutions and other products. The maximum amount of steam is only 3000-6000kg/hr, which is strict on steam quality.

At the time of production, in order to ensure the quality of the products and the stability of the process, the company spent huge sums of money to build boiler rooms and steam systems to provide stable, high-quality steam.

Due to environmental protection requirements, the development zone has a unified energy supply – using thermal power plants for steam supply. However, due to the large fluctuations in steam pressure provided by thermal power plants (7 barg-12 barg), the temperature also fluctuates between 180 °C and 230 °C.

Due to the uneven load of the main pipe, when the amount is small, it may become wet steam during long-distance transportation. However, when the amount is large, it is superheated steam; at the same time, the newly built, modified and pipeline corrosion caused by welding slag, sludge, rust and other impurities often block pipes, valves, etc., users are very worried about this.

Based on Rick's many years of experience and expertise in steam systems, we have designed the following systems for our customers.

1) First, at the steam inlet, a sewage collection pipe is provided so that the main impurities and sludge in the pipe network cannot enter the factory steam system.

2) When it is wet steam or cold start, the liquid water film layer attached to the wall of the steam pipe and the water droplets suspended in the steam are separated from the steam by the Rick super-steam separator to be discharged through the steam trap. The steam entering the factory's auto parts station maintains a dryness of more than 99%, improves heat transfer efficiency, and reduces and eliminates corrosion and water hammer from steam pipes, valves and steam equipment.

3) Before entering the main decompression station, use Rick 100 mesh steam all stainless steel filter to block any fine impurities outside the system to ensure good work of the decompression station.

4) Considering that the process system has a large change in steam load, two PRV2000s of DN50 and DN65 are connected in parallel. Using the deviation of Rick PRV2000±0.1barg, at low flow rate, a PRV2000 of DN50 starts first. When the flow rate increases, the PRV200 of DN65 also automatically turns on the supplementary flow due to the pressure drop (0.2 barg). Demand; when the flow rate decreases, the DN65's PRV2000 is closed first due to the pressure increase (within 0.2 barg). When the flow rate is smaller until the load is zero, the DN50 DP17 is also closed. This cycle ensures that the downstream supply pressure is not affected by the load and The fluctuation of the upstream steam supply pressure is maintained within ±0.2 barg.

5) When the superheated steam is supplied, the Rick pilot venturi desuperheater is used to cool the steam spray. At the same time, the sleeve electric valve accurately controls the outlet temperature within the deviation of ±1 °C, and the micro-superheated steam supply system is higher than the saturated steam by 5 °C to improve the heat exchange efficiency and increase the equipment output rate. At the same time, protect the steam equipment from high temperature damage.

6) A water well is installed downstream of the desuperheater, and the DN15FT float trap is used in parallel with the DN15AEV thermostatic steam trap to ensure that dry steam enters the equipment.

After the above system configuration, the customer has confidence in the guarantee of steam quality.

In fact, after six months of operation, the configuration of the auto parts station successfully solved various problems of customers' worries. While using the cheap steam of the thermal power plant, the factory steam system was guaranteed to operate well.

Energy saving and emission reduction, starting from scratch, Suzhou Creek Valve's 20 years of steam application experience and expertise can help more customers make better use of the cheap steam of thermal power plants.