Overview of low-pressure heater (low-pressure heater):

The function of a low-pressure heater, abbreviated as a low-pressure heater, is to use the steam that has done some work in the turbine to extract it into the heater to heat the feedwater, increase the temperature of the water, reduce the amount of steam discharged from the turbine to the condenser, reduce energy loss, and improve the circulation rate of the thermal system. The conclusion is that a vertical tube plate heater is commonly used. The heating surface of the heater is generally composed of straight or U-shaped tube bundles made of brass pipes or slotted steel pipes.

Low pressure heater (low pressure heater) Figure 1

Low pressure heater (low pressure heater) - output potential:

Low pressure heater, low-pressure heater. The heated water enters the separated water chamber from the upper inlet pipe and then flows into the U-shaped pipe bundle. The U-shaped pipe absorbs the heat of the heated steam in the steam space of the heater, and is transferred to the flowing water inside the pipe by the pipe wall. The heated water flows out through the outlet water chamber of the heater.

Working principle of low-pressure heater (low-pressure heater):

The low-pressure heater (working principle of low-pressure heater) has both self flow and drainage pump circulation, and the difference in equipment is whether there is a drainage pump- A general power plant uses condensate water directly from the shaft seal heater to the low-pressure heater (different systems have different numbers, for example, 125MW and 300MW have 4-)

Low pressure heater, low pressure heater malfunction and measures:

1. The pipe bundle at the steam inlet is easily damaged by steam flow erosion. Low pressure heaters usually install a door protection baffle on the steam inlet pipe bundle to disperse steam flow and reduce its impact. 2. The heated water vaporizes in the heating water pipe of the heater, causing a water hammer. To prevent this phenomenon, it is required that the pressure of the heated water should be higher than the pressure of the heated vapor. 3. Non condensable gas accumulation. The air discharge pipe installed on the heater should be kept unobstructed.

Low pressure heater, low pressure heater structure - form:

Lianyungang Lingdong provides high and low pressure heaters (low-pressure heaters), which are vertical devices. The internal heating pipes are divided into two categories: disc-shaped pipes and U-shaped pipes, each with its own length, and can be selected according to user needs!

Low pressure heater, low pressure heater supply range:

1. Standardized production - and supporting production for the host factory-

2. Design and customize doors according to user requirements

3. Undertake maintenance such as replacing tube bundles and other equipment renovations, as well as technical renovation services

4. Provide high-pressure accessories such as heat exchangers and sealing rings

Low pressure heater, low pressure heater specifications technical parameters:

以上低壓加熱器（低加）參數(shù)僅供參考，按實(shí)際設(shè)計(jì)為主！

Self regulating liquid level control device for gas-liquid two-phase flow

The self regulating liquid level control device for gas-liquid two-phase flow is based on the principle of gas-liquid two-phase flow. The two-phase flow drainage controller is suitable for liquid level control of various heat exchangers and expanders in enterprises such as power, chemical, petroleum, and metallurgy. It is a replacement of the drainage regulator.

Blower silencer

The blower muffler is mainly suitable for reducing the intake and exhaust noise of Roots series and axial flow series fans. The blower muffler can also be used for noise reduction of exhaust pipes and other high-pressure fans, with a noise reduction amount of 10-20dB (A) and a pressure loss of less than 500Pa.

Blow pipe silencer

Blow pipe silencers can be used to eliminate the noise generated by boilers and pipelines during blowing. Box type blow pipe silencers are divided into upper exhaust and partial exhaust, with the upper exhaust type being a box structure and the partial exhaust type being a circular structure.

Replacing the tube of the shaft seal heater

Manufacturer of shaft seal heaters, also undertaking pipe replacement and renovation of shaft seal heaters, replacing copper pipes, stainless steel pipes, boiler pipes, etc. According to customer needs, the replacement, repair, installation, and restoration of the relevant shaft seal heater pipes must be carried out. The original equipment must be sent to our company for pipe bundle replacement.

Steam seal heater tube replacement and renovation

The steam seal heater adopts a horizontal U-shaped surface heat exchanger for pipe replacement and transformation. The pipe material is stainless steel pipe, and in addition to expansion joint, the pipe also needs to be sealed and welded with the pipe plate; HSn-70-1 tin brass is also used and fixed on the tube plate by expanding the tube.

pressure type rotary membrane deaerator

The high working pressure of the pressure type rotary film deaerator is 0.59MPa or 0.78MPa (for subcritical units). The pressure of the low-pressure rotary film deaerator is greater than the ambient pressure (0.12MPa), and the temperature of the low-pressure rotary film deaerator is heated to 104 degrees with an oxygen content not exceeding 15ug/L. The temperature of the pressure type rotary film deaerator is around 160 degrees.

Continuous Blowdown Expander Continuous Blowdown Expander

Continuous blow down flash tank, also known as continuous blow down expansion tank, is connected to the continuous discharge outlet of the boiler and is used to reduce pressure and expand the capacity of the boiler.

Vapor-liquid two-phase flow is used in continuous sewage expansion vessel

Lianyungang Lingdong Electromechanical Equipment Co., Ltd. is a manufacturer of gas-liquid two-phase flow and electric auxiliary equipment such as continuous discharge expansion vessels.

Blowdown cooler

A sewage cooler is an equipment that uses chemically treated water or raw water to cool sewage or other wastewater. Reduced heat loss while heating chemically treated water, increasing heat rate. It can also be used for cooling or heating water and steam media. There are two forms of sewage coolers: tubular sewage coolers and surface sewage coolers.

Working principle of automatic steam liquid two-phase flow trap

The automatic steam liquid two-phase flow steam trap, also known as the gas-liquid two-phase flow control valve, is suitable for the water level self operated intelligent control of pressure vessels such as high and low pressure heaters, continuous discharge expansion vessels, raw water heaters, and heating network heaters in the power industry.