CN216896028U - Automatic water supplementing and draining device of smoke exhaust pipe controlled by double-float valve - Google Patents
Automatic water supplementing and draining device of smoke exhaust pipe controlled by double-float valve Download PDFInfo
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- CN216896028U CN216896028U CN202120840761.3U CN202120840761U CN216896028U CN 216896028 U CN216896028 U CN 216896028U CN 202120840761 U CN202120840761 U CN 202120840761U CN 216896028 U CN216896028 U CN 216896028U
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Abstract
The utility model discloses an automatic water replenishing and draining device of a smoke exhaust pipe controlled by double-float valves, which is characterized by comprising a closed water tank, wherein a sewage collecting pipe and a vent pipe are arranged at the top of the closed water tank, a water replenishing float valve for automatically replenishing water to the closed water tank is arranged at the lower part of one side of the closed water tank, a water draining float valve for draining water in the closed water tank is arranged at the upper part of the other side of the closed water tank, a slag discharging valve is arranged at the bottom of the closed water tank, and the water draining float valve and the slag discharging valve are both communicated with a drainage pipe. The utility model has simple structure, low cost and less maintenance, the double float valves realize automatic water supply and automatic discharge, ensure long-term water storage in the water tank and reliable water seal of the sewage collecting pipe, avoid water seal failure caused by heating and evaporating moisture by high-temperature exhaust fume which enters the sewage collecting pipe, and the local inclination of the bottom of the water tank is beneficial to gathering, deposition and discharge of soot and slag.
Description
Technical Field
The utility model relates to an automatic water replenishing and discharging device for a smoke exhaust pipe controlled by a double-float valve, and belongs to the technical field of accumulated water collection and discharge in the smoke exhaust pipe in the ship industry.
Background
The exhaust gas generated by the diesel engine and the boiler of the ship affects the safety of the ship body and the health of crew. In order to facilitate smooth exhaust of waste gas, the waste gas is often exhausted by a chimney arranged on an uppermost layer of weather deck, the temperature of the waste gas in the smoke exhaust pipe is as high as 400-650 ℃, and the smoke exhaust pipe has the characteristics of large pipe diameter, long length and large humidity facing marine atmosphere environment of a smoke exhaust outlet. When the diesel engine and the boiler are not used, the temperature in the smoke exhaust pipe suddenly drops to cause the ocean atmosphere to suck backwards, and condensed water exists in the smoke exhaust pipe. Or rainwater enters the smoke exhaust pipe from the smoke exhaust outlet due to design problems and storms. The condensed water, rain water and other accumulated water in the smoke exhaust pipe flow to a turbocharger of a diesel engine or even a cylinder sleeve or a furnace chamber of a boiler along the bottom of the pipe wall and are dissolved into the accumulated dust on the smoke exhaust pipe, so that serious quality accidents and losses are caused. Therefore, a discharge port is generally provided at the bottom of the smoke exhaust pipe near the smoke exhaust port of the diesel engine or the boiler, and preferably at the bottom of the elbow pipe near the smoke exhaust port for collecting and discharging the sewage dissolved with the soot. The discharge port is directly communicated with a smoke discharge pipe, the smoke discharge has a positive pressure of 2-10 kPa and the temperature is as high as 400-650 ℃, and if no measures are taken, the smoke discharge can enter the cabin to influence the safety and health of personnel. In order to solve the problem, a pipeline in front of a discharge valve at the bottom of a discharge pipe is conventionally made into a horizontal S-shaped bend to form a water seal, and the discharge valve is opened periodically to discharge sewage. However, the conventional measures have the problems that sewage of the S-bend water seal is heated and evaporated under high-temperature smoke discharge, soot and slag in the S-bend are excessively blocked, the opening of a discharge valve is not timely, and the like, so that the problems cannot be well avoided.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the discharge device can automatically replenish water, discharge water and seal water, so that the possibility that sewage in the smoke discharge pipe damages a diesel engine and a boiler is reduced, and the harm to the health of a crew and the interior of a cabin caused by smoke discharge is avoided.
In order to solve the technical problems, the technical scheme of the utility model is to provide an automatic water replenishing and discharging device of a double-float valve controlled smoke exhaust pipe, which is characterized by comprising a closed water tank, wherein a sewage collecting pipe and a vent pipe are arranged at the top of the closed water tank, a water replenishing float valve for automatically replenishing water for the closed water tank is arranged at the lower part of one side of the closed water tank, a water discharging float valve for discharging water in the closed water tank is arranged at the upper part of the other side of the closed water tank, a slag discharging valve is arranged at the bottom of the closed water tank, and the water replenishing float valve and the slag discharging valve are both communicated with the discharge pipe.
Preferably, the water replenishing float valve is connected with a water supply pipe.
Preferably, the slag discharge valve is communicated with the discharge pipe through a slag discharge pipe.
Preferably, the end of the bleed-off pipe extends to the cabin bilge.
Preferably, the sewage collecting pipe, the vent pipe, the slag discharging valve, the water replenishing float valve and the water draining float valve are all fixed on the closed water tank through flanges.
Preferably, the center of the water replenishing float valve is arranged at a position 25% of the height from the bottom of the closed water tank, and the center of the water draining float valve is arranged at a position 70% of the height from the bottom of the water tank, so that the up-and-down free movement of the float cannot be influenced after the water replenishing float valve is installed.
Preferably, one end of the sewage collecting pipe is arranged in the closed water tank, is 10% away from the bottom plate in the closed water tank and is lower than the lowest liquid level height of automatic water replenishing of the water replenishing float valve, and high-temperature smoke exhaust in the sewage collecting pipe is prevented from being directly discharged from the vent pipe (namely air leakage).
Preferably, the outlet end of the vent pipe is in an inverted U shape, and the flow area of the vent pipe is 1.0-1.25 times that of the water supply pipe.
Preferably, the bottom of the closed water tank is partially an inclined plane, and the horizontal position of the connecting slag discharging valve is lower than that of other parts.
More preferably, the part of the closed water tank bottom provided with the slag discharge valve is a horizontal plane.
Preferably, the material of the closed water tank is stainless steel which is resistant to seawater salt spray and soot corrosion, or common carbon steel with an anticorrosive coating arranged inside.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model provides a double-float valve controlled automatic water replenishing and draining device for a smoke exhaust pipe, which has the advantages of simple structure, low cost and less maintenance, automatically replenishes water through a water replenishing float valve arranged at a low position, automatically drains water through a water draining float valve arranged at a high position, automatically controls the liquid level in a water tank and ensures long-term water storage in the water tank; the tail end of the sewage collecting pipe is arranged at the lower part in the water tank to form a water seal, so that the high-temperature discharged smoke flowing into the sewage collecting pipe is cooled, and the impurities are favorably fully contacted with water for precipitation; in the process of opening the slag discharge port, the water replenishing port can replenish water automatically, flush the bottom of the water tank and facilitate the collection and discharge of the ash and slag.
Drawings
FIG. 1 is a schematic view of an automatic water replenishing and draining device of a smoke exhaust pipe controlled by a double-float valve.
Detailed Description
In order to make the utility model more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Examples
The utility model provides an automatic water replenishing and draining device of a smoke exhaust pipe controlled by double-float valves, which comprises a closed water tank 1 with a partially inclined bottom, a sewage collecting pipe 6 and a vent pipe 7 arranged at the top of the water tank, a water replenishing float valve 2 arranged at the lower part of the side surface of the water tank, a water draining float valve 3 arranged at the upper part of the side surface of the water tank, a slag discharging valve 4 arranged at the bottom of the water tank, a water replenishing float valve 5 connected with a water supply pipe, a discharging pipe 9 connected with the outlet of the water draining float valve 3, a slag discharging pipe 8 connected with the outlet of the slag discharging valve, a slag discharging pipe 8 converged into the discharging pipe 9, the tail end of the discharging pipe 9 extended to the bottom of a cabin, and the sewage collecting pipe 6, the vent pipe 7, the slag discharging valve 4, the water replenishing float valve 2 and the water draining float valve 3 which are respectively arranged on the water tank through flanges.
The water replenishing float valve 2 is automatically opened when the liquid level in the closed water tank 1 is low (such as the liquid level D in figure 1) or is automatically closed when the liquid level is high (such as the liquid level C in figure 1), and the water replenishing float valve 2 can automatically replenish water for the water tank when opened.
The drain float valve 3 has the same type and specification as the water replenishing float valve 2, but needs to be installed after rotating 180 degrees, so that the drain float valve can be automatically closed when the liquid level is low (such as the liquid level B in the figure 1) or automatically opened when the liquid level is high (such as the liquid level A in the figure 1), and the drain float valve 3 can discharge the redundant sewage in the water tank when being opened.
The center of the water replenishing float valve 2 is arranged at a position which is 25 percent of the height of the bottom of the closed water tank 1, and the center of the water draining float valve 3 is arranged at a position which is 70 percent of the height of the bottom of the closed water tank 1, so that the up-and-down free movement of the float can not be influenced after the installation.
The sewage collecting pipe 6 is connected with a discharge port on the self-exhaust pipe, the tail end of the sewage collecting pipe 6 extends into the closed water tank 1 and is close to the bottom, the height of the tail end of the sewage collecting pipe is about 10% of that of the bottom plate of the closed water tank 1, and the tail end of the sewage collecting pipe is lower than the lowest liquid level height (such as a liquid level D in the figure 1) of the automatic water replenishing of the water replenishing float valve 2, so that the high-temperature exhaust in the sewage collecting pipe is prevented from being directly discharged from the vent pipe (namely, the exhaust is prevented from being mixed).
The outlet of the vent pipe 7 is an inverted U-shaped bend, so that impurities are prevented from entering the closed water tank 1. The flow area of the ventilation pipe 7 is 1.0-1.25 times of that of the water supply pipe 5.
The closed water tank 1 is made of a stainless steel material resistant to seawater salt spray and soot corrosion or a common carbon steel with an anticorrosive coating inside.
The bottom of the closed water tank 1 is partially inclined, and the lowest bottom of the closed water tank 1 is horizontal, so that the collection and discharge of clinker are facilitated.
The water replenishing float valve 2 automatically replenishes water at a low liquid level (such as a liquid level D in figure 1) and the water draining float valve automatically drains water at a high liquid level (such as a liquid level A in figure 1), so that the water level in the closed water tank 1 can be automatically controlled, and long-term water storage in the water tank is ensured; the tail end of the sewage collecting pipe 6 is arranged at the lower part in the closed water tank 1, so that water seal can be formed for a long time; in the process of opening the slag discharging valve 4, the liquid level in the closed water tank 1 can be reduced, the water replenishing float valve 2 can open the water replenishing, and the replenished water washes the bottom of the closed water tank 1, so that the precipitated soot and slag can be collected and discharged conveniently.
The water seal have the liquid level net pressure to hinder and discharge fume and get into the water tank, even if advanced, also can fully contact with water discharging fume, seal the water in the water tank 1 and can fully discharge fume for high temperature and cool and filter and adsorb harmful waste gas and cigarette ash.
According to the utility model, through automatic water replenishing and automatic drainage of the double-float valve, water can be stored in the water tank for a long time so as to avoid high-temperature smoke exhaust and evaporation of water by heating, and reliable water sealing of the sewage collecting pipe is ensured; the utility model has simple structure, low cost and less maintenance, and the bottom of the water tank is partially inclined, thus being beneficial to gathering, settling and discharging the ash and slag.
Claims (9)
1. The utility model provides a two float valve controlled automatic moisturizing device of tub of discharging fume, a serial communication port, including closed water tank (1), closed water tank (1) top is equipped with sewage collecting pipe (6) and permeability cell (7), the lower part of closed water tank (1) one side is equipped with and is used for automatic moisturizing float valve (2) for closed water tank (1) moisturizing, the upper portion of closed water tank (1) opposite side is equipped with sluicing float valve (3) that are used for releasing closed water tank (1) internal water, closed water tank (1) bottom is equipped with slag extractor (4), sluicing float valve (3), slag extractor (4) all communicate with release pipe (9).
2. The automatic water replenishing and discharging device of the double-float valve controlled smoke discharging pipe as claimed in claim 1, wherein said water replenishing float valve (2) is connected to a water supply pipe (5).
3. The automatic water replenishing and discharging device for the double-float valve controlled smoke discharging pipe of claim 1, wherein the slag discharging valve (4) is communicated with the discharging pipe (9) through a slag discharging pipe (8).
4. The double-float valve controlled smoke exhaust pipe automatic water replenishing device of claim 1, wherein the end of said discharge pipe (9) extends to the cabin bilge.
5. The automatic water replenishing and draining device for the smoke exhaust pipe controlled by the double-float valve as claimed in claim 1, wherein the sewage collecting pipe (6), the vent pipe (7), the slag discharging valve (4), the water replenishing float valve (2) and the water draining float valve (3) are all fixed on the closed water tank (1) through flanges.
6. The automatic water replenishing and draining device for the smoke exhaust pipe controlled by the double-float valve as claimed in claim 1, wherein one end of the sewage collecting pipe (6) is arranged in the closed water tank (1) and is lower than the lowest liquid level of the automatic water replenishing of the water replenishing float valve (2).
7. The automatic water replenishing and discharging device for the smoke exhaust pipe controlled by the double-float valve as claimed in claim 1, wherein the outlet end of the air permeability pipe (7) is in an inverted U shape, and the flow area of the air permeability pipe is 1.0 to 1.25 times of that of the water supply pipe (5).
8. The automatic water replenishing and draining device for the smoke exhaust pipe controlled by the double-float valve as claimed in claim 1, wherein the bottom of the closed water tank (1) is partially an inclined surface, and the horizontal position of the connecting slag discharging valve (4) is lower than that of other parts.
9. The automatic water replenishing and discharging device for the smoke exhaust pipe controlled by the double-float valve according to claim 8, wherein the part of the closed water tank (1) at the bottom provided with the slag discharging valve (4) is a horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120840761.3U CN216896028U (en) | 2021-04-22 | 2021-04-22 | Automatic water supplementing and draining device of smoke exhaust pipe controlled by double-float valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120840761.3U CN216896028U (en) | 2021-04-22 | 2021-04-22 | Automatic water supplementing and draining device of smoke exhaust pipe controlled by double-float valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216896028U true CN216896028U (en) | 2022-07-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120840761.3U Active CN216896028U (en) | 2021-04-22 | 2021-04-22 | Automatic water supplementing and draining device of smoke exhaust pipe controlled by double-float valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216896028U (en) |
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2021
- 2021-04-22 CN CN202120840761.3U patent/CN216896028U/en active Active
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