CN-224215875-U - Flow guiding device of air extraction condenser

Abstract

The utility model relates to a flow guiding device of an air extraction condenser, which comprises a shell, wherein a steam inlet, an extraction opening, a water inlet, a water outlet and a condensed water outlet are formed in the shell, the water inlet and the water outlet are communicated through a heat exchange tube, a plurality of flow guiding plates are arranged in the shell, a U-shaped air flow channel is formed in the shell by the flow guiding plates, two ends of the air flow channel are respectively communicated with the steam inlet and the extraction opening, the condensed water outlet is communicated with the bottom of the air flow channel, and the heat exchange tube sequentially penetrates through the air flow channel.

Inventors

• CAO SHUFENG
• WANG HONGLIANG
• YUAN FAYONG
• WANG ZECHUN

Assignees

• 山东泰西水泥有限公司

Dates

Publication Date

20260508

Application Date

20250527

Claims (6)

1. 1. A flow guiding device of an air extraction condenser comprises a shell (1), wherein a steam inlet (101), an extraction opening (102), a water inlet (103), a water outlet (104) and a condensed water outlet (105) are formed in the shell (1), the water inlet (103) and the water outlet (104) are communicated through a heat exchange tube (2), and the air extraction condenser is characterized in that a plurality of flow guiding plates (3) are arranged in the shell (1), the flow guiding plates (3) form a U-shaped air flow channel (4) in the shell (1), two ends of the air flow channel (4) are respectively communicated with the steam inlet (101) and the extraction opening (102), the condensed water outlet (105) is communicated with the bottom of the air flow channel (4), and the heat exchange tube (2) sequentially penetrates through the air flow channel (4).
2. 2. The device for guiding the air-extracting condenser according to claim 1, wherein the bottom of the air flow channel (4) is provided with a water outlet, the condensed water outlet (105) is communicated through the water outlet, and the water outlet is provided with a one-way check valve (5) with an opening facing the condensed water outlet (105).
3. 3. The flow guiding device of the air extraction condenser according to claim 2, wherein the one-way check valve (5) comprises a sliding hole formed in the shell (1), the axis of the sliding hole is parallel to the axis of the water outlet, a valve (501) matched with the water outlet is arranged in the sliding hole in a sliding manner, and the valve (501) is connected with the shell (1) through a reset spring (502).
4. 4. The device of claim 3, wherein the guide rod (503) is slidably disposed in the sliding hole, and the valve (501) is disposed at an end of the guide rod (503) facing the water outlet.
5. 5. The air-extracting condenser flow guiding device according to claim 1, wherein the plurality of air flow channels (4) are sequentially communicated, and the flow guiding plate (3) forms an S-shaped air flow channel (4) in the shell (1).
6. 6. The flow guiding device of the air extraction condenser according to claim 2, wherein the bottom of the shell (1) is provided with a water collecting bucket (6), and the condensed water outlet (105) is positioned at the bottom of the water collecting bucket (6).

Description

Flow guiding device of air extraction condenser Technical Field The utility model relates to the technical field of condensers, in particular to a flow guiding device of an air extraction condenser. Background The condenser is key equipment in a thermal power plant, a nuclear power plant and a large industrial steam power system, and has the core functions of condensing low-pressure steam discharged by a steam turbine into water and simultaneously maintaining the vacuum state in the system, so that the thermodynamic cycle efficiency is improved and the safe operation of the equipment is ensured. The existing condenser mostly adopts a centripetal type air extraction mode, and does not carry out secondary condensation on insufficiently condensed steam, so that a large amount of steam is directly extracted, incondensable gas is difficult to timely and effectively discharge, and is accumulated in a cooling area to form a large amount of dead areas, so that the condensation efficiency is seriously affected. Therefore, a pumping condenser flow guiding device capable of cooling steam for a plurality of times is needed. Disclosure of utility model Aiming at the defects of the prior art, the utility model provides the flow guiding device of the air extractor and the condenser, which is simple, efficient, safe, reliable and convenient to operate, and can be used for performing secondary condensation on the insufficiently condensed steam by the heat exchange tube passing through the air flow channel in a reciprocating manner, reducing the occurrence of the condition that the steam is directly extracted, further effectively discharging non-condensable gas in time, improving the condensation efficiency. The utility model provides a flow guiding device of an air extraction condenser, which comprises a shell, wherein a steam inlet, an extraction opening, a water inlet, a water outlet and a condensate water outlet are formed in the shell, the water inlet and the water outlet are communicated through a heat exchange tube, a plurality of flow guiding plates are arranged in the shell, a U-shaped air flow channel is formed in the shell by the flow guiding plates, two ends of the air flow channel are respectively communicated with the steam inlet and the extraction opening, the condensate water outlet is communicated with the bottom of the air flow channel, the heat exchange tube sequentially penetrates through the air flow channel, and the heat exchange tube passes through the air flow channel in a reciprocating manner, so that secondary condensation is carried out on insufficiently condensed steam, the occurrence of the condition that the steam is directly extracted is reduced, non-condensable gas is effectively discharged in time, and the condensation efficiency is improved. The condensation water outlet is communicated through the water outlet, a one-way check valve with an opening facing the condensation water outlet is arranged on the water outlet, and the condensation water and the non-condensable gas are separated through the one-way check valve, so that the condensation water is prevented from influencing the discharge of the non-condensable gas. The one-way check valve comprises a sliding hole which is formed in the shell, the axis of the sliding hole is parallel to the axis of the water outlet, a valve which is matched with the water outlet is arranged in the sliding hole in a sliding mode, the valve is connected with the shell through a reset spring, and the water discharge of the water outlet is adjusted according to the condensation efficiency of steam through contraction or relaxation of the reset spring. As optimization, a guide rod is arranged in the sliding hole in a sliding way, and a valve is arranged at one end of the guide rod, which faces to the water outlet; the valve is prevented from deflecting by guiding the guide rod. The multiple airflow channels are sequentially communicated, the guide plate forms an S-shaped airflow channel in the shell, and vapor which is not fully condensed is condensed for multiple times through the S-shaped airflow channel, so that the condensation efficiency is improved. The bottom of the shell is provided with a water collecting bucket, the condensed water outlet is positioned at the bottom of the water collecting bucket, condensed water is collected through the water collecting bucket, and the condensed water is conveniently discharged. The condensing device has the beneficial effects that the heat exchange tube passes through the airflow channel in a reciprocating manner, so that secondary condensation is carried out on the steam which is not fully condensed, the condition that the steam is directly pumped away is reduced, non-condensable gas is effectively discharged in time, the condensing efficiency is improved, the S-shaped airflow channel is used for carrying out repeated condensation on the steam which is not fully condensed, the condensing efficiency is improved, th