Closed steam condensate recovery system

Abstract

This case is a closed steam condensate recovery system, including the box body; the skylight, which is located above the box body; the control box, which is located on one side of the box body; the stop valve, which passes through the flange plate and the flange on the other side of the box body Connection, there is a seamless steel pipe between the flange and the box; the foot, which is located at the bottom of the box; and one or two or more steam pumps inside the box, the steam pump is divided into upper, middle and lower It consists of three parts, the upper part is the high-temperature medium, the middle part is the cooling device, and the lower part is the pneumatic power part. The steam pump is connected to the control box through the air pipe; the upper ends of each steam pump are respectively equipped with an integrated inlet barrel and an integrated The outlet barrel and the inlet and outlet of the steam pump are connected to the joints corresponding to the integrated inlet barrel and the integrated outlet barrel through high-temperature metal hoses by means of flange screw locking; one side of the high-temperature metal hose is also equipped with a stainless steel ball valve , and the other side is equipped with a door lock. The steam condensate recovery system in this case can be fully closed recovery.

Description

technical field [0001] The invention belongs to the field of energy saving and environmental protection, and in particular relates to a closed steam condensed water recovery system. Background technique [0002] In the fields of medicine and chemical industry, unit operations such as chemical reaction, distillation or drying are usually realized by superheated steam, and then the used steam exists in the form of condensed water. Since the steam condensed water does not contain organic matter and meets the emission standards, now large Most medical and chemical enterprises adopt direct discharge treatment for the used steam condensate. [0003] Generally, the working process of using steam as a heating source is: the boiler burns to heat the water in the furnace to a certain temperature, and then turns it into high-temperature and high-pressure steam and transports it to the container that needs to be heated. During the process, a large amount of high-temperature and high-pr...

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Problems solved by technology

[0003] Generally, the working process of using steam as a heating source is: the boiler burns to heat the water in the furnace to a certain temperature, and then turns it into high-temperature and high-pressure steam and transports it to the container that needs to be heated. During the process, a large amount of high-temperature and high-pressure condensed water will be discharged under the action of the terminal trap. Under one atmospheric pressure, most of it will be released into the air without pressure and low-temperature steam, and a small part of low-temperature water will flow into the ground, resulting in large waste of enterprises and environmental pollution. And other issues

Traditional recovery devices generally use centrifugal water pumps, which can only recover condensed water limitedly. Gas cannot enter the pump body during the working process. There is an air release valve in the body, otherwise it will be damaged. The power is large, the noise is large, and the overall maintenance cost is high. The body must be equipped with external cooling water for continuous cooling, which generally flows into the ground, causing a lot of waste of water resources

[0004] To sum up, the existing technologies only have open recovery or semi-closed recovery. The so-called semi-closed recovery is to reserve an exhaust valve or install an automatic exhaust device to discharge part of the high-temperature steam when manufacturing recovery equipment. Otherwise, the high-temperature water in the production line will not be able to enter the recovery system smoothly. The actual energy saving rate of this technology is about 10%-15%. Some manufacturers directly discharge high-temperature condensed water into the ditch for production, causing waste and pollution.

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