CN212081207U - Built-in balance container - Google Patents
Built-in balance container Download PDFInfo
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- CN212081207U CN212081207U CN202020761765.8U CN202020761765U CN212081207U CN 212081207 U CN212081207 U CN 212081207U CN 202020761765 U CN202020761765 U CN 202020761765U CN 212081207 U CN212081207 U CN 212081207U
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Abstract
The utility model discloses a built-in balance container, including the level extend the steam on boiler drum upper portion even pipe and the level extend the water even pipe of boiler drum lower part, the water even pipe that is located the boiler drum outside even has the negative pressure pipe, still including setting up the benchmark cup in the boiler drum, the bottom of benchmark cup has the reference pipe, the bottom of reference pipe bend by the water even intraductal horizontal seal extends the water even outside of tubes, and the reference pipe that extends the water even outside of tubes even has the malleation pipe, the benchmark cup be located extend the boiler drum in the steam even manage orificial under, the water even pipe that is located the boiler drum outside even has a condenser section of thick bamboo, and the top of condenser section of thick bamboo is equipped with the water injection plug, the bottom of condenser section of thick bamboo even has the back flow, and the back flow is linked together with the reference pipe that extends the water even outside of tubes, and the internal diameter size of back flow is greater. Use the utility model discloses afterwards, even the near "flash distillation" phenomenon appears in the benchmark cup, still can relatively accurate measure the true water level in the boiler drum.
Description
Technical Field
The utility model relates to a built-in balanced container.
Background
The built-in balance container in the prior art is used for measuring the water level of a boiler steam pocket and mainly comprises a steam connecting pipe horizontally extending to the upper part of the boiler steam pocket, a water connecting pipe horizontally extending to the lower part of the boiler steam pocket, a negative pressure guide pipe connected with the water connecting pipe positioned on the outer side of the boiler steam pocket, and a reference cup arranged in the boiler steam pocket, wherein a reference pipe is arranged at the bottom of the reference cup, the bottom end of the reference pipe is bent to horizontally seal the water connecting pipe from the inside 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 pressure guide pipe, the reference cup is positioned right below the opening of the steam connecting pipe extending to the inside of the boiler steam pocket, the water connecting pipe positioned on the outside of the boiler steam pocket is connected with a condensation barrel. The inner diameter of the condensation cylinder in the prior art is far larger than that of the reference cup, and the volume of the condensation cylinder is also far larger than that of the reference cup.
When the built-in balance container is used, a water injection plug is taken out firstly, water is injected into the condensation cylinder until the reference cup is filled with the injected water through the steam connecting pipe, then the positive pressure guide pipe and the negative pressure guide pipe are respectively connected with the positive pressure end and the negative pressure end of the differential pressure transmitter, the differential pressure value of the static pressure of the reference cup and the static pressure of the actual water level in the boiler steam pocket (which changes along with the rise and fall of the water level) is measured according to the differential pressure principle, and the differential pressure value is converted into a current signal through the differential pressure transmitter and transmitted to a computer of a centralized control room for monitoring the water level. The steam connecting pipe has the function that saturated steam in a boiler steam drum flows into the condensing cylinder, is condensed by the condensing cylinder and then flows back through the steam connecting pipe to fall into the reference cup, so that water in the reference cup is always in a full cup state.
Because the phenomenon of 'flash evaporation' sometimes occurs in the boiler drum, namely the sudden drop of the air pressure occurs in a local part of the boiler drum, the boiling point of water in the local part is correspondingly reduced suddenly, and the water in the local part is correspondingly vaporized suddenly. If the 'flash evaporation' phenomenon occurs near the reference cup, the water in the reference cup is suddenly and rapidly vaporized, the water level in the reference cup is correspondingly and rapidly reduced, the pressure in the positive pressure guide pipe is also suddenly reduced, the real water level in the boiler steam drum cannot be accurately measured, and the hidden trouble in production safety exists.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a built-in balance container that can still relatively accurately measure true water level in the boiler drum even near the benchmark cup appears "flash distillation".
In order to solve the technical problem, the built-in balance container of the utility model is used for measuring the water level of a boiler steam pocket, comprises a steam connecting pipe horizontally extending to the upper part of the boiler steam pocket and a water connecting pipe horizontally extending to the lower part of the boiler steam pocket, the water connecting pipe positioned outside the boiler steam pocket is connected with a negative pressure guide pipe, and 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 to extend to the outer side of the water connecting pipe by the horizontal sealing in the water connecting pipe, the reference pipe extending to the outer side of the water connecting pipe is connected with a positive pressure, 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 the improvement of the utility model, the outer cover of the reference cup is provided with a protective cylinder, the cylinder wall of the protective cylinder is evenly provided with air inlet and outlet holes, and the pipe orifice of the steam connecting pipe extends into the protective cylinder.
As a further improvement of the utility model, the upper part of the steam connecting pipe which is positioned in the boiler steam pocket and outside the protective barrel 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 utility model discloses in the internal diameter size of back flow is 2-3 times of reference pipe internal diameter size, can guarantee that the water in the condensation cylinder flows back to in the benchmark cup fast. The technical characteristics that the protective cylinder is sleeved outside the reference cup and the air inlet and outlet holes are uniformly distributed on the cylinder wall of the protective cylinder are adopted, so that 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 drum 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 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 structural composition diagram of a built-in equalization vessel of the present invention, showing an associated boiler drum.
Fig. 2 is a front view of the protective cylinder cover of the present invention.
Detailed Description
Referring to fig. 1 and 2, the utility model relates to a built-in balance container for measuring the water level of a boiler drum 1, which comprises a steam connecting pipe 2 horizontally extending to the upper part of the boiler drum and a water connecting pipe 3 horizontally extending to the lower part of the boiler drum, wherein the water connecting pipe outside the boiler drum is connected with a negative pressure conduit 4, the balance container also comprises a reference cup 5 arranged in the boiler drum 1, the bottom of the reference cup is provided with a reference pipe 6, the bottom end of the reference pipe 6 is bent to horizontally seal the water connecting pipe 3 to the outer side of the water connecting pipe, the reference pipe extending to the outer side of 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 to the boiler drum, the water connecting pipe outside the boiler drum 1 is connected with a condenser 8, the top of the condenser is provided with a water injection plug 9, the bottom of the condenser 8 is connected with a return pipe 10, the return pipe 10 is communicated with the reference pipe extending to, 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 sleeved with a protection cylinder 11, the wall of the protection cylinder is uniformly provided with air inlet and outlet holes 12, the side surface of the protection cylinder 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 protection 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.
Claims (4)
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 (11), the wall of the protective cylinder 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020761765.8U CN212081207U (en) | 2020-05-11 | 2020-05-11 | Built-in balance container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020761765.8U CN212081207U (en) | 2020-05-11 | 2020-05-11 | Built-in balance container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212081207U true CN212081207U (en) | 2020-12-04 |
Family
ID=73568276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020761765.8U Active CN212081207U (en) | 2020-05-11 | 2020-05-11 | Built-in balance container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212081207U (en) |
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2020
- 2020-05-11 CN CN202020761765.8U patent/CN212081207U/en active Active
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