CN111780090A - Automatic water supply equipment for steam boiler - Google Patents
Automatic water supply equipment for steam boiler Download PDFInfo
- Publication number
- CN111780090A CN111780090A CN202010763983.XA CN202010763983A CN111780090A CN 111780090 A CN111780090 A CN 111780090A CN 202010763983 A CN202010763983 A CN 202010763983A CN 111780090 A CN111780090 A CN 111780090A
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- China
- Prior art keywords
- boiler
- water
- water replenishing
- pipe
- steam
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/08—Controlling water feed or water level; Automatic water feeding or water-level regulators with float-actuated valves
- F22D5/10—Controlling water feed or water level; Automatic water feeding or water-level regulators with float-actuated valves and with pistons or membranes unitary with the feed inlet valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/16—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways
- F22D1/18—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways and heated indirectly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D5/00—Controlling water feed or water level; Automatic water feeding or water-level regulators
- F22D5/26—Automatic feed-control systems
Abstract
The invention discloses automatic water replenishing equipment for a steam boiler, which comprises a boiler and a water replenishing tank, wherein a water replenishing pipe is communicated between the water replenishing tank and the boiler, one end of the water replenishing pipe is provided with a water pump and a cavity, the other end of the water replenishing pipe is provided with a spiral coil pipe, a sealing plate is movably clamped in the cavity, the sealing plate is provided with an adjusting hole, and the side wall of the boiler is provided with an adjusting component for controlling the size of an adjusting hole channel on the sealing plate; the spiral coil pipe is externally wrapped with a preheating box, the upper end of the preheating box is provided with an auxiliary steam pipe communicated with the boiler, and a return pipe is communicated between the bottom of the preheating box and the water replenishing tank. The automatic water replenishing equipment for the steam boiler can realize dynamic water replenishing, the water level in the boiler is always maintained at a stable position, and the fluctuation of the water level in the boiler is small, so that the stable steam heat supply is ensured; in the water replenishing process, the steam in the boiler is used for preheating the cold water in the water replenishing pipe, so that the rapid reduction of the water temperature caused by the fact that the cold water directly enters the boiler is avoided, and the steam supply interruption or steam pressure fluctuation is avoided.
Description
Technical Field
The invention relates to the technical field of steam boilers, in particular to automatic water replenishing equipment for a steam boiler.
Background
Steam boilers are industrial boilers for producing high-temperature steam, most of steam boilers used in a plurality of factories use coal as fuel, water in the boilers is converted into steam by heat generated by combustion of the coal, and water in the boilers is reduced because the water is continuously converted into the steam, so that water needs to be supplemented to the boilers.
At present, an automatic water replenishing device of an existing steam boiler generally comprises an electric control device and a water replenishing pump, and when the water quantity of a hot water circulating system of the boiler is reduced, the electric control device sends a signal to start the water replenishing pump to replenish water to the boiler. When the water quantity is supplemented to a set value, the electric control device sends a signal, the water supplementing pump is closed, and water supplementing is stopped, so that water level fluctuation in the boiler is large, the steam quality is unstable, water supplementing equipment is expensive due to the complex structure of the electric control device, and the operation and maintenance cost of the boiler is improved; in addition, the device directly adds cold water into the boiler, so that the water temperature in the boiler is rapidly reduced, steam is easily cut off or steam pressure fluctuates, the working continuity of the boiler is affected, and the requirement of industrial production is difficult to meet.
Disclosure of Invention
The invention aims to provide automatic water replenishing equipment for a steam boiler, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic water replenishing device for a steam boiler comprises a boiler and a water replenishing tank, wherein a main steam pipe is arranged at the top of the boiler, a water replenishing pipe is communicated between the water replenishing tank and the boiler, a water pump and a cavity are mounted at one end, close to the water replenishing tank, of the water replenishing pipe, a sealing plate is movably clamped in the cavity, an adjusting hole is formed in the sealing plate, an adjusting assembly for controlling the size of an adjusting hole channel on the sealing plate is mounted on the side wall of the boiler, the adjusting assembly comprises a communicating pipe, a sleeve plate and a floating ball, the communicating pipe is fixed on the outer wall of the boiler and is communicated with the interior of the boiler, a sleeve plate is vertically and movably sleeved in the communicating pipe, the floating ball is mounted at the; the boiler is characterized in that a spiral coil is arranged at one end, close to the boiler, of the water replenishing pipe, a preheating box is wrapped outside the spiral coil, an auxiliary steam pipe communicated with the boiler is arranged at the upper end of the preheating box, and a return pipe is communicated between the bottom of the preheating box and the water replenishing box.
As a further scheme of the invention: the floating ball is made of plastics.
As a further scheme of the invention: a plurality of through holes are formed in the circumferential direction of the sleeve plate.
As a further scheme of the invention: the bottom of the sealing plate is wedge-shaped.
As a further scheme of the invention: and the bottom of the cavity is provided with a sealing strip.
As a further scheme of the invention: the height of the upper end surface of the water replenishing tank is lower than that of the lower end surface of the preheating tank.
As a further scheme of the invention: and the inner wall of the preheating box is provided with a heat-insulating layer.
Compared with the prior art, the invention has the beneficial effects that:
1. the communicating pipe is arranged outside the boiler, and the floating ball is driven to float up and down by utilizing the synchronous change of the communicating pipe and the water temperature in the boiler, so that the effective channel area of the adjusting hole on the sealing plate is dynamically adjusted, the dynamic water supplement is realized, the water level in the boiler is always maintained at a stable position, the water level fluctuation in the boiler is small, and the stable steam heat supply is ensured;
2. the structure is simple, the equipment cannot be damaged due to high temperature in the furnace, the adjustment is flexible, and the response speed is high;
3. in the water replenishing process, the steam in the boiler is used for preheating the cold water in the water replenishing pipe, so that the rapid reduction of the water temperature caused by the fact that the cold water directly enters the boiler is avoided, and the steam supply interruption or steam pressure fluctuation is avoided;
4. the steam after the preheating treatment is liquefied and flows into the water replenishing tank again through the return pipe for subsequent cyclic utilization, and the energy-saving and environment-friendly effects are achieved.
Drawings
FIG. 1 is a perspective view of an automatic water supply apparatus for a steam boiler;
FIG. 2 is a perspective view of a floating ball in an automatic water replenishing device of a steam boiler;
FIG. 3 is a perspective view of a chamber in an automatic water replenishing apparatus for a steam boiler;
FIG. 4 is a perspective view of a preheating chamber of an automatic water replenishing apparatus for a steam boiler.
In the figure: 1-boiler, 2-water replenishing tank, 3-water replenishing pipe, 4-water pump, 5-chamber, 6-closing plate, 7-communicating pipe, 8-sleeve plate, 9-floating ball, 10-connecting rod, 11-main steam pipe, 12-preheating tank, 13-auxiliary steam pipe, 14-spiral coil pipe, 15-return pipe, 16-sealing strip, 17-through hole and 18-adjusting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if there is a directional indication (such as up, down, left, right, front, and back) in the embodiment of the present invention, it is only used to explain the relative position relationship between the components, the motion situation, and the like in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if the description of "first", "second", etc. is referred to in the present invention, it is used for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example 1
Referring to fig. 1, the automatic water replenishing equipment for the steam boiler comprises a boiler 1 and a water replenishing tank 2, wherein a main steam pipe 11 is arranged at the top of the boiler 1, a water replenishing pipe 3 is communicated between the water replenishing tank 2 and the boiler 1, one end, close to the water replenishing tank 2, of the water replenishing pipe 3 is provided with a water pump 4 and a cavity 5, a sealing plate 6 is movably clamped in the cavity 5, an adjusting hole 18 is formed in the sealing plate 6, an adjusting assembly for controlling the size of a channel of the adjusting hole 18 in the sealing plate 6 is arranged on the side wall of the boiler 1, the adjusting assembly comprises a communicating pipe 7, a sleeve plate 8 and a floating ball 9, the communicating pipe 7 is fixed on the outer wall of the boiler 1 and is communicated with the interior of the boiler 1, the sleeve plate 8 is vertically and movably sleeved in the communicating pipe 7, the floating ball 9 is arranged at the bottom; a spiral coil 14 is arranged at one end of the water replenishing pipe 3 close to the boiler 1, a preheating tank 12 is wrapped outside the spiral coil 14, an auxiliary steam pipe 13 communicated with the boiler 1 is arranged at the upper end of the preheating tank 12, and a return pipe 15 is communicated between the bottom of the preheating tank 12 and the water replenishing tank 2;
specifically, the water in the water replenishing tank 2 is pressed into the boiler 1 by the water replenishing pipe 3 by the water pump 4 for replenishing water, the water level in the boiler 1 continuously rises along with the water replenishing process, the water level in a communicating pipe 7 outside the boiler 1 also rises along with the water level, so that the floating ball 9 is driven to float upwards, the sleeve plate 8 is pushed to rise along the inner wall of the communicating pipe 7, the sealing plate 6 is driven to rise under the action of the connecting rod 10, the effective channel area of the adjusting hole 18 on the sealing plate 6 is reduced, the water flow in the water replenishing pipe 3 is reduced until the water level in the boiler 1 rises to a certain position, the adjusting hole 18 on the sealing plate 6 is completely sealed, and the water replenishing is; after the water in the boiler 1 is evaporated, the water level begins to fall, the floating ball 9 floats downwards to drive the sealing plate 6 to fall, the adjusting hole 18 is opened again, so that water is replenished again, the circulation is carried out, the dynamic water replenishing is realized, and the water level in the boiler 1 is ensured to be always maintained at a stable position; meanwhile, partial steam in the boiler 1 enters the preheating tank 12 from the auxiliary steam pipe 13, so that cold water flowing through the spiral coil 14 in the water replenishing pipe 3 is preheated, the temperature of the cold water is increased, the cold water is prevented from directly entering the boiler 1 to cause rapid reduction of the water temperature, the steam after preheating treatment is liquefied by heat absorption, drops to the bottom of the preheating tank 12, and flows into the water replenishing tank 2 through the return pipe 15 for cyclic utilization;
referring to fig. 2, a communicating pipe 7 is installed outside the boiler 1, and a floating ball 9 is disposed in the communicating pipe 7, so that the floating ball 9 can be prevented from being damaged by high temperature in the boiler 1, and the specific material of the floating ball 9 is not limited, in this embodiment, preferably, the floating ball 9 is made of plastic, and has light weight and large buoyancy, so that the sealing plate 6 can be pushed to move more easily;
in order to further reduce the resistance of the floating ball 9 during floating, a plurality of through holes 17 are circumferentially formed in the sleeve plate 8, so that the weight of the sleeve plate 8 is reduced, the bottom of the sleeve plate 8 is communicated with the outside, and the floating ball 9 is guaranteed to normally fluctuate;
referring to fig. 3, the bottom of the sealing plate 6 is wedge-shaped, so that the sealing plate can be inserted into the bottom of the cavity 5 more easily to avoid being stuck;
in order to improve the sealing performance of the sealing plate 6, the sealing strip 16 is arranged at the bottom of the cavity 5, so that water is prevented from leaking from a gap between the sealing plate 6 and the cavity 5;
in order to make the liquefied water in the preheating tank 12 flow back to the water supply tank 2 smoothly, the height of the upper end surface of the water supply tank 2 is lower than that of the lower end surface of the preheating tank 12, so that the liquefied water at the bottom in the preheating tank 12 can flow into the water supply tank 2 through the return pipe 15, and the liquefied water in the preheating tank 12 is prevented from being accumulated.
The working principle of the embodiment is as follows:
firstly, water in a water replenishing tank 2 is pressed into a boiler 1 by a water replenishing pipe 3 by a water pump 4 for replenishing water, the water level in the boiler 1 continuously rises along with the water replenishing process, the water level in a communicating pipe 7 outside the boiler 1 also rises along with the water level, so that a floating ball 9 is driven to float upwards, a sleeve plate 8 is pushed to rise along the inner wall of the communicating pipe 7, then a sealing plate 6 is driven to rise under the action of a connecting rod 10, the effective channel area of an adjusting hole 18 on the sealing plate 6 is reduced, the water flow in the water replenishing pipe 3 is reduced until the water level in the boiler 1 rises to a certain position, the adjusting hole 18 on the sealing plate 6 is completely sealed, and the water; after the water in the boiler 1 is evaporated, the water level begins to fall, the floating ball 9 floats downwards to drive the sealing plate 6 to fall, the adjusting hole 18 is opened again, so that water is replenished again, the circulation is carried out, the dynamic water replenishing is realized, and the water level in the boiler 1 is ensured to be always maintained at a stable position; meanwhile, partial steam in the boiler 1 enters the preheating tank 12 from the auxiliary steam pipe 13, so that cold water flowing through the spiral coil 14 in the water replenishing pipe 3 is preheated, the temperature of the cold water is increased, the cold water is prevented from directly entering the boiler 1 to cause rapid reduction of the water temperature, the steam after preheating treatment is liquefied by heat absorption, drips to the bottom of the preheating tank 12, and flows into the water replenishing tank 2 through the return pipe 15 for recycling.
Example 2
An automatic water replenishing device for a steam boiler comprises a boiler 1 and a water replenishing tank 2, wherein a main steam pipe 11 is arranged at the top of the boiler 1, a water replenishing pipe 3 is communicated between the water replenishing tank 2 and the boiler 1, one end, close to the water replenishing tank 2, of the water replenishing pipe 3 is provided with a water pump 4 and a cavity 5, a sealing plate 6 is movably clamped in the cavity 5, an adjusting hole 18 is formed in the sealing plate 6, an adjusting assembly for controlling the size of an adjusting hole 18 channel in the sealing plate 6 is installed on the side wall of the boiler 1, the adjusting assembly comprises a communicating pipe 7, a sleeve plate 8 and a floating ball 9, the communicating pipe 7 is fixed on the outer wall of the boiler 1 and is communicated with the interior of the boiler 1, the sleeve plate 8 is vertically and movably sleeved in the communicating pipe 7, the floating ball 9 is installed at the bottom of the sleeve; a spiral coil 14 is arranged at one end of the water replenishing pipe 3 close to the boiler 1, a preheating tank 12 is wrapped outside the spiral coil 14, an auxiliary steam pipe 13 communicated with the boiler 1 is arranged at the upper end of the preheating tank 12, and a return pipe 15 is communicated between the bottom of the preheating tank 12 and the water replenishing tank 2;
referring to fig. 4, in order to improve the preheating effect and rapidly heat up the water in the water replenishing pipe 3, the inner wall of the preheating tank 12 is provided with the heat insulating layer, so that the heat dissipation of the steam in the preheating tank 12 is reduced, the heat exchange efficiency is improved, the temperature difference between the water in the water replenishing pipe 3 and the water in the boiler 1 is reduced, the rapid drop of the water temperature caused by water replenishing is avoided, and the steam heat supply effect is ensured.
The automatic water replenishing equipment for the steam boiler is characterized in that the communicating pipe 7 is arranged on the outer side of the boiler 1, and the floating ball 9 is driven to float up and down by utilizing the synchronous change of the water temperature in the communicating pipe 7 and the boiler 1, so that the effective passage area of the adjusting hole 18 on the sealing plate 6 is dynamically adjusted, the dynamic water replenishing is realized, the water level in the boiler 1 is always maintained at a stable position, the water level fluctuation in the boiler is small, and the stable steam heat supply is ensured; the structure is simple, the equipment cannot be damaged due to high temperature in the furnace, the adjustment is flexible, and the response speed is high; in the water replenishing process, the steam in the boiler 1 is used for preheating the cold water in the water replenishing pipe 3, so that the rapid reduction of the water temperature caused by the direct entry of the cold water into the boiler 1 is avoided, and the steam supply interruption or steam pressure fluctuation is avoided; the steam after the preheating treatment is liquefied and flows into the water replenishing tank 3 again through the return pipe 15 for subsequent recycling, so that the energy is saved and the environment is protected.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. The automatic water replenishing equipment for the steam boiler comprises a boiler (1) and a water replenishing tank (2) and is characterized in that a main steam pipe (11) is arranged at the top of the boiler (1), the water replenishing tank (2) and the boiler (1) are communicated with each other through a water replenishing pipe (3), one end, close to the water replenishing tank (2), of the water replenishing pipe (3) is provided with a water pump (4) and a cavity (5), a sealing plate (6) is movably clamped in the cavity (5), an adjusting hole (18) is formed in the sealing plate (6), an adjusting assembly for controlling the size of an adjusting hole (18) channel on the sealing plate (6) is installed on the side wall of the boiler (1) and comprises a communicating pipe (7), a sleeve plate (8) and a floating ball (9), the communicating pipe (7) is fixed on the outer wall of the boiler (1) and is communicated with the inside of the boiler (1), and the sleeve plate (8) is vertically, a floating ball (9) is arranged at the bottom of the sleeve plate (8), and a U-shaped connecting rod (10) is connected between the sleeve plate (8) and the sealing plate (6); one end of the water replenishing pipe (3) close to the boiler (1) is provided with a spiral coil (14), the spiral coil (14) is wrapped by a preheating box (12), the upper end of the preheating box (12) is provided with an auxiliary steam pipe (13) communicated with the boiler (1), and a return pipe (15) is communicated between the bottom of the preheating box (12) and the water replenishing box (2).
2. A steam boiler automatic water supplement apparatus according to claim 1, characterized in that, the floating ball (9) is made of plastic.
3. A steam boiler automatic water supplement device according to the claim 1, characterized in that, a plurality of through holes (17) are opened on the circumference of the sleeve plate (8).
4. A steam boiler automatic water supplementing device according to claim 1, characterized in that the bottom of the closing plate (6) is wedge-shaped.
5. A steam boiler automatic water supplementing device according to claim 4, characterized in that the chamber (5) is provided with a sealing strip (16) at the bottom.
6. A steam boiler automatic water supplement apparatus according to claim 1, characterized in that the height of the upper end surface of the water supplement tank (2) is lower than the height of the lower end surface of the preheating tank (12).
7. A steam boiler automatic water supply equipment according to any one of the claims 1 to 6, characterized in that the inner wall of the preheating tank (12) is provided with an insulating layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763983.XA CN111780090A (en) | 2020-08-01 | 2020-08-01 | Automatic water supply equipment for steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010763983.XA CN111780090A (en) | 2020-08-01 | 2020-08-01 | Automatic water supply equipment for steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111780090A true CN111780090A (en) | 2020-10-16 |
Family
ID=72766686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010763983.XA Withdrawn CN111780090A (en) | 2020-08-01 | 2020-08-01 | Automatic water supply equipment for steam boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN111780090A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701345A (en) * | 2021-09-03 | 2021-11-26 | 湖北恒利建材科技有限公司 | A boiler equipment for assisting production of concrete additive |
-
2020
- 2020-08-01 CN CN202010763983.XA patent/CN111780090A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701345A (en) * | 2021-09-03 | 2021-11-26 | 湖北恒利建材科技有限公司 | A boiler equipment for assisting production of concrete additive |
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Application publication date: 20201016 |
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