CN207627947U - A kind of evaporator vapor-liquid separating device - Google Patents

Abstract

The utility model relates to a vapor-liquid separation device for an evaporator, which comprises: a body; a steam inlet and a steam outlet are arranged on the body; a cavity; a vapor-liquid separation net is arranged inside the cavity; the vapor-liquid separation net It is connected with the steam outlet; at least two baffles are arranged between the vapor-liquid separation network and the steam inlet; the baffles are all inclined, and the inclination angles are different. The device has a novel structure. Several baffles with different inclination angles are fixed in the cavity, so that the rising water vapor forms a turbulent flow in the process of flowing through the baffles and lengthens the vapor-liquid separation channel in a disguised form. It fully collides with the baffle plate, and the entrained mist droplets continue to grow, and are collected at the bottom of the cavity under the action of gravity, thereby achieving the purpose of water vapor and liquid separation. The wavy design of the baffle increases the blocking area of water vapor, which to a certain extent makes its separation more sufficient.

Description

An evaporator vapor-liquid separation device

technical field

The utility model relates to the field of vapor-liquid separation, in particular to a vapor-liquid separation device for an evaporator.

Background technique

The pure steam generator is the key equipment of the most widely used pure steam preparation system at present. When the pure steam generator performs vapor-liquid separation, because the water vapor flows quickly in the evaporation chamber, but the separation height of the evaporation chamber is limited, part of the liquid does not have enough time to separate out during the rapid rise of the water vapor, which leads to insufficient separation. , where the presence of liquid affects the acceptable water yield and steam saturation. The equipment that has appeared on the market to solve the insufficient separation height of the evaporation chamber has complex internal structures, high manufacturing costs, and general functions. The separation effect of vapor and liquid is not satisfactory, and needs to be improved urgently.

Utility model content

The problem to be solved by the utility model is to provide a vapor-liquid separation device for an evaporator, so as to solve the problems that the current vapor-liquid separation device has complex structure, general function, and poor vapor-liquid separation effect.

In order to solve the above technical problems, the utility model relates to a vapor-liquid separation device for an evaporator, which includes: a body, which is provided with a steam inlet and a steam outlet; net; the vapor-liquid separation net is connected to the steam outlet; at least two baffles are arranged between the vapor-liquid separation net and the steam inlet; the baffles are all inclined and have different inclination angles.

The vapor-liquid separation device of the evaporator has a novel structure. By fixing several baffles with different inclination angles in the cavity, the rising water vapor forms a turbulent flow in the process of flowing through the baffles and lengthens the steam in a disguised form. The liquid separation channel makes it fully collide with the baffle plate, and the entrained mist droplets continue to grow, and are collected at the bottom of the chamber under the action of gravity, thereby achieving the purpose of vapor-liquid separation.

As a further improvement of the utility model, the baffle is fixedly arranged in the cavity.

After multiple experiments and relevant analysis, the optimal inclination angle of each baffle is determined and fixed on the cavity.

As a further improvement of the utility model, the baffles are arranged in a staggered interval.

This arrangement can minimize the number of baffles that need to be arranged inside the cavity under the condition that the vapor-liquid separation effect is the same.

As a further improvement of the present invention, the projection of each baffle on the cross section completely covers the cavity.

The projection of the baffle on the cross section completely covers the cavity, so that the water vapor can be more fully separated.

As a further improvement of the utility model, the materials of the vapor-liquid separation net and the baffle are all stainless steel.

The vapor-liquid separation net and baffle plate made of stainless steel can prevent it from being corroded by high temperature of water vapor and improve the service life of the equipment

As a further improvement of the utility model, the baffles are all wave-shaped.

The wavy baffles increase the blocking area, making the water vapor more fully separated.

As a further improvement of the utility model, small holes are arranged on the baffle.

As a further improvement of the utility model, the small holes are arranged in a matrix array.

As a further improvement of the utility model, the diameter of the small hole is not greater than 3mm.

The baffle is provided with a certain number of small holes, which are arranged in a matrix array, which destroys the impact force generated by the vapor-liquid transportation and reduces the flow rate of the water vapor transportation.

As a further improvement of the utility model, the periphery of the cavity is wrapped with an insulating layer.

The insulation layer included around the cavity of the separation device reduces the temperature drop of water vapor during the vapor-liquid separation process to a certain extent, which is conducive to a more complete separation process.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings based on these drawings without creative work.

Fig. 1 is a schematic diagram of the vapor-liquid separation device of the evaporator in the first embodiment of the present invention.

Fig. 2 is a partial cross-sectional view of a baffle in a second embodiment of the present invention.

1-body; 2-steam inlet; 3-steam outlet; 4-cavity; 5-vapor-liquid separation net; 6-baffle; 7-insulation layer.

Detailed ways

Below in conjunction with specific embodiment, the content of the present utility model is described in further detail:

In order to achieve the purpose of the utility model, Fig. 1 shows a schematic diagram of the vapor-liquid separation device of the evaporator in the first embodiment of the utility model. The utility model relates to a vapor-liquid separation device for an evaporator, which includes: a cylindrical, square or any other suitable shape body 1, the body 1 is composed of upper and lower parts, and the pre-fitting surfaces of the two parts are set as bolts For the connected flange surface, in order to prevent leakage, a sealing ring is also provided between the upper and lower parts. In order to reduce the temperature drop of water vapor during the vapor-liquid separation process and facilitate the separation of water vapor more fully, an insulating layer 7 made of asbestos is also wrapped on the outer peripheral surface of the body 1 . In addition, the side wall of the body 1 is provided with a steam inlet 2 for water vapor to enter, the top is provided with a steam outlet 3 for water vapor to discharge, and the bottom is also provided with a liquid outlet for water vapor to precipitate liquid (not shown in the figure). Out); in the interior of the cavity 4 of the vapor-liquid separation device, a vapor-liquid separation net 5 made of stainless steel is installed near its top; the vapor-liquid separation net 5 is connected to the steam outlet 3. By fixing several stainless steel baffles 6 with different inclination angles in the cavity 4 of the gas-liquid separation device, the left and right sides are arranged alternately at intervals, and the projection of each baffle 6 on the cross section completely covers the cavity 4. Make the rising water vapor form a turbulent flow in the process of flowing through the baffle plate 6 and lengthen the vapor-liquid separation channel in a disguised form, so that the water vapor can fully collide with the baffle plate 6, and the mist droplets entrained in it will continue to flow. After growing up, they are collected at the bottom of the cavity 4 under the action of gravity, and discharged through the liquid outlet, thereby achieving the purpose of vapor-liquid separation. In order to further make the separation of water vapor more sufficient, the baffle plate 6 is provided with a certain number of small holes arranged in a matrix array. After many experiments, the effect is the best when the diameter of the small holes is not more than 3mm, which destroys the vapor. The impact force generated by liquid transportation, and to a certain extent reduce the delivery flow rate of water vapor.

Figure 2 shows a partial cross-sectional view of the baffle plate of the vapor-liquid separation device of the evaporator in the second embodiment, which differs from the vapor-liquid separation device of the evaporator in the first embodiment only in the belt inside the cavity 4 The hole baffles 6 are folded into waves. Parameters such as specific bending angle and bending length need to be experimentally obtained according to specific actual conditions. The wavy design of the baffle plate 6 increases the water vapor blocking area. During the rising process of the water vapor, the vapor in the water vapor will deflect and pass by, while the liquid continues to have a forward speed due to inertia, and the forward liquid adheres to the blocking wall, and under the action of gravity, it gathers downward , so that the water vapor separation flow is more sufficient.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An evaporator vapor-liquid separation device, characterized in that it comprises: Ontology; A steam inlet and a steam outlet are formed on the body; cavity; A gas-liquid separation net is arranged inside the cavity; The gas-liquid separation network is connected to the steam outlet; it is characterized in that: at least two baffles are arranged between the gas-liquid separation network and the steam inlet; the baffles are all inclined settings, with varying angles of inclination. 2 . The vapor-liquid separation device for the evaporator according to claim 1 , wherein the baffle is fixedly arranged in the cavity. 3 . 3 . The vapor-liquid separation device for the evaporator according to claim 1 , wherein the baffles are arranged in a staggered interval. 4 . 4 . The vapor-liquid separation device for the evaporator according to claim 1 , wherein the projections of the baffles on the cross section completely cover the cavity. 5. The vapor-liquid separation device for the evaporator according to claim 1, wherein the vapor-liquid separation net and the baffle are made of stainless steel. 6. The vapor-liquid separation device for an evaporator according to any one of claims 1-5, characterized in that, the baffles are all wave-shaped. 7. The vapor-liquid separation device for the evaporator according to claim 6, characterized in that small holes are arranged on the baffle plate. 8. The vapor-liquid separation device for an evaporator according to claim 7, wherein the small holes are arranged in a matrix array. 9. The vapor-liquid separation device for the evaporator according to claim 8, characterized in that the diameter of the small hole is not greater than 3mm. 10 . The vapor-liquid separation device for the evaporator according to claim 9 , wherein the periphery of the cavity is wrapped with an insulating layer. 11 .