Horizontal steam-water separator with three layers of demisters

Abstract

The utility model provides a horizontal steam-water separator with three layers of demisters, relates to the technical field of horizontal steam-water separators, and aims to solve the problems that the existing steam-water separator is only provided with one layer of demister, so that the size of the demister needs to be increased in order to meet a preset water vapor condensation effect; the demister comprises a box body, the box body is of a cylindrical structure, the box body is hollow, an air inlet is formed in the top of the box body, an air outlet is formed in the right end of the box body, and an air outlet is formed in the right end of the box body. An anti-surge valve connector is installed on the right side of the air inlet and located on the box body, and a plurality of groups of manholes are installed between the air inlet and the anti-surge valve connector.

Description

Technical Field

[0001] The utility model relates to the technical field of horizontal steam-water separators, in particular to a horizontal steam-water separator with a three-layer demister. Background Art

[0002] The steam-water separator is a heat exchange device between the primary and secondary circuits of a pressurized water reactor nuclear power plant. It is used to transfer the heat of the reactor coolant to the secondary side, convert the water on the secondary side into steam, perform rough separation of the steam-water mixture, reduce the humidity at the inlet of the secondary steam-water separator, ensure that qualified quality saturated steam is provided to the turbine, and ensure safe and economical operation of the turbine.

[0003] The existing steam-water separator is only provided with one layer of demister. In order to meet the preset water vapor condensation effect, the size of the demister needs to be increased. The large size of the demister causes difficulties in the early production and installation and the later cleaning and replacement. Therefore, it is particularly important to design a horizontal steam-water separator with three layers of demisters to solve the above technical problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that the existing steam-water separator has only one layer of demister, and in order to meet the preset water vapor condensation effect, the size of the demister needs to be increased, and the large size of the demister causes difficulties in the early production and installation and the later cleaning and replacement, and a horizontal steam-water separator with three layers of demister is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a horizontal steam-water separator with a three-layer demister, comprising a box body, the box body is a cylindrical structure, the box body is hollow, an air inlet is installed on the top of the box body, an air outlet is installed on the right end of the box body, an anti-surge valve interface is installed on the right side of the air inlet, and multiple groups of manholes are installed between the air inlet and the anti-surge valve interface.

[0006] Preferably, a demister support is fixedly connected to a position below the manhole in the box.

[0007] Preferably, an inlet guide pipe is installed on the side wall at the air inlet position.

[0008] Preferably, an outlet guide tube is installed on the side wall at the air outlet position.

[0009] Preferably, a liquid level meter interface is installed at the left end of the box body, a filtrate pump interface is installed at the lower position of the box body, and a sewage outlet is also installed on the right side of the filtrate pump interface, and the sewage outlet is connected to the box body.

[0010] Compared with the prior art, the advantages and positive effects of the utility model are:

[0011] 1. In the utility model, during use, by installing multiple groups of demisters in the box body and distributing them in a stepped manner, the water vapor condensation efficiency of the overall structure is greatly improved. Compared with the conventional horizontal steam-water separator using a single demister structure, the utility model has a simple structure and is easy for the staff to install and maintain. The overall structure has good stability and is not easy to damage. It solves the problem that the existing steam-water separator has only one layer of demisters. In order to meet the preset water vapor condensation effect, the size of the demister needs to be increased, and the large size of the demister causes difficulties in early production and installation and later cleaning and replacement.

[0012] 2. In the present invention, during use, by installing a liquid level gauge on the side of the box body, the height of the water level in the barrel can be measured in real time, and the filtrate pump installed at the lowest position of the barrel body can be controlled by the system control center to pump water. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an overall diagram of a horizontal steam-water separator with a three-layer demister of the utility model;

[0014] Figure 2 It is a half-section view of a horizontal steam-water separator with a three-layer demister of the utility model;

[0015] Legend: 1. Box body; 101. Air inlet; 102. Inlet guide pipe; 2. Air outlet; 201. Outlet guide pipe; 3. Anti-surge valve interface; 4. Manhole; 5. Defogger support; 6. Liquid level gauge interface; 7. Filtrate pump interface; 8. Sewage outlet. DETAILED DESCRIPTION

[0016] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0018] The utility model provides a horizontal steam-water separator with a three-layer demister, including a box body 1, wherein the box body 1 is a cylindrical structure, the box body 1 is hollow, an air inlet 101 is installed on the top of the box body 1, an inlet guide pipe 102 is installed on the side wall at the position of the air inlet 101, an air outlet 2 is installed on the right end of the box body 1, an outlet guide pipe 201 is installed on the side wall at the position of the air outlet 2, an anti-surge valve interface 3 is installed on the right side of the air inlet 101 on the box body 1, which is used to install an anti-surge valve, which can balance the pressure difference inside and outside the barrel during equipment operation and ensure the safety of equipment use, a plurality of manholes 4 are installed between the air inlet 101 and the anti-surge valve interface 3, a demister support 5 is fixedly connected at a position below the manhole 4 in the box body 1, and the demister can be inserted from the corresponding manhole 4 position when installing. Later cleaning and replacement can be carried out separately, the operation is simple and does not affect each other.

[0019] When the horizontal steam-water separator with three-layer demisters is actually used, the condensation efficiency of water vapor is improved by increasing the number of demisters in the limited box 1. At the same time, in terms of the demister structure, a combination of "S" type and "C" type is selected for use, which can enhance the condensation effect of water vapor and reduce the impact on airflow disturbance; guide pipes are designed at the inlet and outlet of the separator, which guide and constrain the direction of airflow movement, increase the contact between the gas in the box 1 and the demister and the inner wall, and improve the condensation effect of water vapor; the demister support 5 in the box 1 adopts a stepped design, and is located higher near the outlet direction, so that the condensation of water vapor collected on the demister can be guided to the front side of the barrel, thereby improving the working efficiency of water vapor condensation; by installing and setting a plurality of groups of demisters in the box 1 and distributing them in a stepped manner, the water vapor condensation efficiency of the overall structure is greatly improved. Compared with the conventional horizontal steam-water separator using a single demister structure, the utility model has a simple structure, is easy for staff to install and maintain, and has good overall structural stability and is not easy to damage.

[0020] like Figure 1-2 As shown, a liquid level gauge interface 6 is installed at the left end of the box body 1, a filtrate pump interface 7 is installed at the lower position of the box body 1, and a sewage outlet 8 is also installed on the right side of the filtrate pump interface 7. The sewage outlet 8 is connected to the box body 1, which is conducive to timely discharge of the messy substances inside the box body 1;

[0021] The effect achieved by the entire embodiment 1 is that, during use, by installing a liquid level meter on the side of the box body 1, the height of the water level in the barrel can be measured in real time, and the filtrate pump installed at the lowest position of the barrel body can be controlled by the system control center to pump water.

[0022] Working principle: In a limited box, the condensation efficiency of water vapor is improved by increasing the number of demisters. At the same time, a combination of "S" and "C" types are selected for the demister structure, which can enhance the condensation effect of water vapor and reduce the impact on air flow disturbance. Guide pipes are designed at the inlet and outlet of the separator to guide and constrain the direction of air flow movement, increase the contact between the gas in the box and the demister and the inner wall, and improve the condensation of water vapor. The demister support in the box adopts a stepped design, which is higher near the outlet direction, so that the condensed water vapor gathered on the demister can be diverted to the front side of the barrel, which improves the working efficiency of water vapor condensation.

Claims

1. A horizontal steam-water separator with a three-layer demister, comprising a housing (1), wherein the housing (1) is a cylindrical structure, characterized in that: The box body (1) is hollow, an air inlet (101) is installed on the top of the box body (1), an air outlet (2) is installed on the right end of the box body (1), an anti-surge valve interface (3) is installed on the box body (1) to the right of the air inlet (101), and a plurality of manholes (4) are installed between the air inlet (101) and the anti-surge valve interface (3).

2. A horizontal steam-water separator with a three-layer demister according to claim 1, characterized in that: A demister support (5) is fixedly connected to a position below the manhole (4) in the box body (1).

3. The horizontal steam-water separator with three-layer demister according to claim 1, characterized in that: An inlet guide pipe (102) is installed on the side wall at the position of the air inlet (101).

4. The horizontal steam-water separator with three-layer demister according to claim 1, characterized in that: An outlet flow guide pipe (201) is installed on the side wall at the location of the air outlet (2).

5. The horizontal steam-water separator with three-layer demister according to claim 1, characterized in that: A liquid level gauge interface (6) is installed at the left end of the box body (1), a filtrate pump interface (7) is installed at a lower position of the box body (1), and a sewage outlet (8) is also installed on the right side of the filtrate pump interface (7), and the sewage outlet (8) is connected to the box body (1).

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