阅读说明：本技术 一种内置式平衡容器 (Built-in balance container ) 是由 朱磊 汪松涛 王永光 于 2020-05-11 设计创作，主要内容包括：本发明公开了一种内置式平衡容器,包括水平伸至锅炉汽包上部的汽连管和水平伸至锅炉汽包下部的水连管,位于锅炉汽包外侧的水连管连有负压导管,还包括设置在锅炉汽包内的基准杯,基准杯的底部具有参比管,参比管的底端折弯由所述水连管内水平密封伸至水连管外侧,伸至水连管外侧的参比管连有正压导管,所述的基准杯位于伸至锅炉汽包内汽连管管口的正下方,位于锅炉汽包外侧的水连管连有冷凝筒,冷凝筒的顶部装有注水丝堵,所述冷凝筒的底部连有回流管,回流管与伸至水连管外侧的参比管相连通,且回流管的内径尺寸大于参比管的内径尺寸。应用本发明后,即使基准杯附近出现“闪蒸”现象,仍然可以相对准确测量出锅炉汽包内的真实水位。(The invention discloses a built-in balance container which comprises a steam connecting pipe horizontally extending to the upper part of a boiler steam pocket and a water connecting pipe horizontally extending to the lower part of the boiler steam pocket, wherein the water connecting pipe positioned on the outer side of the boiler steam pocket is connected with a negative pressure guide pipe, the built-in balance container also comprises a reference cup arranged in the boiler steam pocket, the bottom of the reference cup is provided with a reference pipe, the bottom end of the reference pipe is bent, the reference pipe horizontally and hermetically extends to the outer side of the water connecting pipe from the inside of the water connecting pipe, the reference pipe extending to the outer side of the water connecting pipe is connected with a positive pressure guide pipe, the reference cup is positioned right below the pipe opening of the steam connecting pipe extending to the inside of the boiler steam pocket, the water connecting pipe positioned on the outer side of the boiler steam pocket is connected with a condensation cylinder, the top of the condensation cylinder is provided with a water injection plug, the bottom of the. After the invention is applied, even if the 'flash evaporation' phenomenon appears near the reference cup, the real water level in the boiler steam drum can still be relatively accurately measured.)

1. The utility model provides a built-in balance container for measure the water level of boiler steam pocket (1), include that the level extends steam even pipe (2) and the level on boiler steam pocket upper portion to extend water even pipe (3) of boiler steam pocket lower part, the water even pipe that is located the boiler steam pocket outside even has negative pressure pipe (4), still including setting up benchmark cup (5) in boiler steam pocket (1), the bottom of benchmark cup has reference tube (6), the bottom of reference tube (6) bend by the level seal extends to the water even outside of pipe in water even pipe (3), the reference tube that extends the water even pipe outside even has malleation pipe (7), benchmark cup (5) be located extend the boiler steam pocket in the steam pocket under the steam even pipe mouth of pipe, the water even pipe that is located the boiler steam pocket (1) outside even has a condensation section of thick bamboo (8), water injection plug (9) is equipped with at the top of condensation section of thick bamboo, its characterized in that: the bottom of the condensation cylinder (8) is connected with a return pipe (10), the return pipe (10) is communicated with a reference pipe extending to the outer side of the water connecting pipe, and the inner diameter of the return pipe (10) is larger than that of the reference pipe (6).

2. The built-in equalization vessel of claim 1, wherein: the inner diameter of the return pipe (10) is 2-3 times of the inner diameter of the reference pipe (6).

3. The built-in equalization vessel of claim 1 or 2, wherein: the standard cup (5) is sleeved with a protective cylinder cover (11), the wall of the protective cylinder cover is uniformly provided with air inlet and outlet holes (12), and the opening of the steam connecting pipe (2) extends into the protective cylinder (11).

4. The built-in equalization vessel of claim 3, wherein: the upper part of the steam connecting pipe which is positioned in the boiler steam drum (1) and positioned outside the protective cylinder (11) is provided with a strip-shaped air inlet (14).

Technical Field

The invention relates to a built-in balance container.

Background

Disclosure of Invention

The invention aims to solve the technical problem of providing a built-in balance container which can relatively accurately measure the real water level in a boiler steam drum even if the 'flash evaporation' phenomenon occurs near a reference cup.

In order to solve the technical problem, the built-in balance container is used for measuring the water level of a boiler steam drum and comprises a steam connecting pipe horizontally extending to the upper part of the boiler steam drum and a water connecting pipe horizontally extending to the lower part of the boiler steam drum, wherein the water connecting pipe positioned outside the boiler steam drum is connected with a negative pressure guide pipe, the built-in balance container also comprises a reference cup arranged in the boiler steam drum, the bottom of the reference cup is provided with a reference pipe, the bottom end of the reference pipe is bent to horizontally seal from the inside of the water connecting pipe to the outside of the water connecting pipe, the reference pipe extending to the outside of the water connecting pipe is connected with a positive, the reference cup is positioned right below the pipe orifice of the steam connecting pipe extending into the boiler steam drum, the water connecting pipe positioned outside the boiler steam drum is connected with a condensing cylinder, the top of the condensing cylinder is provided with a water injection plug, the bottom of the condensing cylinder is connected with a return pipe, the return pipe is communicated with a reference pipe extending to the outer side of the water connecting pipe, and the inner diameter of the return pipe is larger than that of the reference pipe.

Preferably, the inner diameter of the return tube is 2-3 times the inner diameter of the reference tube.

As an improvement of the invention, a protective cylinder cover is sleeved outside the reference cup, air inlet and outlet holes are uniformly distributed on the cylinder wall of the protective cylinder cover, and the pipe orifice of the steam connecting pipe extends into the protective cylinder.

As a further improvement of the invention, the upper part of the steam connecting pipe which is positioned in the boiler steam drum and positioned outside the protective cylinder is provided with a strip-shaped air inlet.

The built-in balance container adopting the structure is characterized in that the bottom of the condensation cylinder is connected with the return pipe, the return pipe is communicated with the reference pipe extending to the outer side of the water connecting pipe, and the inner diameter size of the return pipe is larger than that of the reference pipe, so that when the 'flash evaporation' phenomenon occurs near the reference cup, water in the condensation cylinder can directly enter the reference cup through the return pipe and the reference pipe to supplement water vaporized by the 'flash evaporation', the water in the reference cup is always in a relative full cup state, the pressure output by the positive pressure guide pipe is basically kept in a constant state, and the real water level in the boiler steam pocket can be relatively accurately measured. The inner diameter of the return pipe is 2-3 times of that of the reference pipe, so that water in the condensation cylinder can be ensured to quickly return to the reference cup. After the technical characteristics that the protective cylinder cover is sleeved outside the reference cup and the air inlet and outlet holes are uniformly distributed on the cylinder wall of the protective cylinder cover are adopted, the influence of flash evaporation caused by sudden reduction of air pressure near the reference cup can be eliminated to a certain extent, the vaporization speed of water in the reference cup can be reduced, and the measurement precision of the water level in the steam pocket is further improved; after the strip-shaped air inlet hole is formed in the upper part of the steam connecting pipe which is positioned in the boiler steam drum and outside the protective cylinder, the circulation between the saturated steam and the condensing cylinder in the boiler steam drum can be ensured, and the influence on the circulation of the saturated steam between the steam drum and the condensing cylinder after the protective cylinder cover is additionally arranged is eliminated.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the structural composition of an internal equalization vessel of the present invention showing an associated boiler drum.

Fig. 2 is a front view schematically showing the shield cylinder cover of the present invention.

Detailed Description

Referring to fig. 1 and 2, the invention relates to a built-in balance container for measuring the water level of a boiler steam pocket 1, which comprises a steam connecting pipe 2 horizontally extending to the upper part of the boiler steam pocket and a water connecting pipe 3 horizontally extending to the lower part of the boiler steam pocket, wherein the water connecting pipe positioned outside the boiler steam pocket is connected with a negative pressure conduit 4, the built-in balance container also comprises a reference cup 5 arranged in the boiler steam pocket 1, the bottom of the reference cup is provided with a reference pipe 6, the bottom end of the reference pipe 6 is bent and horizontally sealed from the water connecting pipe 3 to the outer side of the water connecting pipe, the reference pipe extending outside the water connecting pipe is connected with a positive pressure conduit 7, the reference cup 5 is positioned right below the pipe orifice of the steam connecting pipe extending into the boiler steam pocket, the water connecting pipe positioned outside the boiler steam pocket 1 is connected with a condensing cylinder 8, the top of the condensing cylinder is provided with a water injection plug 9, the bottom of the condensing cylinder 8 is connected with a return pipe 10, and the return tube 10 has an inner diameter dimension larger than that of the reference tube 6. Preferably, the return tube 10 has an inner diameter dimension 2 to 3 times the inner diameter dimension of the reference tube 6. The standard cup 5 is externally sleeved with a protective cylinder cover 11, the cylinder wall of the protective cylinder cover is uniformly provided with air inlet and outlet holes 12, the side surface of the protective cylinder cover is provided with a round hole 13, and the pipe orifice of the steam connecting pipe 2 penetrates through the round hole and extends into the protective cylinder 11. The upper part of the steam connecting pipe which is positioned in the boiler steam drum 1 and outside the protective cylinder 11 is provided with a strip-shaped air inlet 14.