CN216591669U - Flash tank exhaust steam recycling device - Google Patents
Flash tank exhaust steam recycling device Download PDFInfo
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- CN216591669U CN216591669U CN202220053772.1U CN202220053772U CN216591669U CN 216591669 U CN216591669 U CN 216591669U CN 202220053772 U CN202220053772 U CN 202220053772U CN 216591669 U CN216591669 U CN 216591669U
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Abstract
The utility model provides a flash tank exhaust steam recycling apparatus, include: a drain tank; the first outlet of the water collector is communicated with the first inlet of the drain tank; the first outlet is communicated with the first inlet and the second outlet of the drain tank; the first outlet of the first primary air heater is communicated with the inlet of the water collector; and the first outlet is communicated with the inlet of the low-pressure drainage flash tank. The utility model installs the newly added primary air heater to the upper reaches of the original heater, firstly, the upper reaches air temperature is relatively low, which is more beneficial to the recovery of the exhausted steam of the flash tank and the recovery rate of the exhausted steam is high; secondly, the primary air after the heat exchange of the dead steam of the flash tank has a certain temperature, the demand of the low-pressure steam is reduced when the primary air passes through the original air heater, and the purpose of saving the low-pressure steam is achieved.
Description
Technical Field
The utility model belongs to the technical field of the flash tank, especially, relate to a flash tank exhaust steam recycling apparatus.
Background
The hydrophobic flash tank expands the volume of the hydrophobic water in the pressure hydrophobic pipeline and reduces the pressure, the steam and the hydrophobic water are separated, the flash tank has large steam discharge in the operation process due to the limited separation efficiency of the flash tank, the steam waste is serious, and particularly, the wall ice hanging, the water accumulation and other phenomena are caused by the condensation of a large amount of steam when the temperature is low in winter, so that the invisible waste of resources is caused. At present, a drainage flash tank or a recovery device is additionally arranged on the market to recover the dead steam, so that the cost is higher.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a flash tank exhaust steam recycling apparatus, the utility model provides a flash tank exhaust steam recycling apparatus can realize the cyclic utilization of the energy.
The utility model provides a flash tank exhaust steam recycling apparatus, include:
a drain tank;
the first outlet of the water collector is communicated with the first inlet of the drain tank;
the first outlet is communicated with the second inlet of the drain tank;
the first outlet of the first primary air heater is communicated with the inlet of the water collector;
and the first outlet is communicated with the inlet of the low-pressure drainage flash tank.
Preferably, a third pipeline is arranged at a second outlet of the low-pressure hydrophobic flash tank;
the outlet of the third pipeline is communicated with the first inlet of the first primary air heater;
and a valve is arranged on the third pipeline.
Preferably, a sixth pipeline is arranged at the inlet of the second primary air heater.
Preferably, the second outlet of the second primary air heater is communicated with the boiler.
Preferably, the second inlet of the second primary air heater is communicated with the second outlet of the first primary air heater.
Preferably, the third outlet of the first primary air heater is communicated with the inlet of the fan.
Preferably, the low-pressure hydrophobic flash tank is communicated with the first primary air heater through a fourth pipeline;
and a valve is arranged on the fourth pipeline.
Preferably, a fifth pipeline is arranged between the water collector and the first primary air heater;
and a valve is arranged on the fifth pipeline.
Preferably, the second primary air heater and the low-pressure hydrophobic flash tank are communicated through a seventh pipeline.
Preferably, the third outlet of the first primary air heater is communicated with the fan through a tenth pipeline.
The device provided by the utility model adds a group of air heater systems at the upper stream of the primary air fan air heater, and introduces the exhausted steam of the low-pressure flash tank into the primary air fan air heater to heat the primary air; because low pressure flash vessel exhaust steam pressure is lower, if parallelly connected the phenomenon that will cause the lime set to scurry each other with hydrophobic pipeline and fan heater drainage system, influence system operation, consequently the exhaust steam that will newly-increased fan heater heat transfer adopts independent lime set recovery system and carries out the lime set through the water collector and retrieve, and the lime set of retrieving returns to the drain tank, and remaining exhaust steam is discharged to the atmosphere to realize the cyclic utilization of the energy.
The utility model installs the newly added primary air heater to the upper reaches of the original heater, firstly, the upper reaches air temperature is relatively low, which is more beneficial to the recovery of the exhausted steam of the flash tank and the recovery rate of the exhausted steam is high; secondly, the primary air after the heat exchange of the dead steam of the flash tank has a certain temperature, the demand of the low-pressure steam is reduced when the primary air passes through the original air heater, and the purpose of saving the low-pressure steam is achieved.
The utility model discloses in all adopt manual valve to cut off between each pipeline to the effective isolation of each system when guaranteeing the operation.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention, illustrating an exhaust steam recycling device of a flash tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model provides a flash tank exhaust steam recycling apparatus, include:
a drain tank;
the first outlet of the water collector is communicated with the first inlet of the drain tank;
the first outlet is communicated with the second inlet of the drain tank;
the first outlet of the first primary air heater is communicated with the second inlet of the water collector;
and the first outlet is communicated with the inlet of the low-pressure drainage flash tank.
In the utility model, the drain tank is used for storing the recovered condensed water. The utility model discloses it is right the shape, size and the material of drain box do not have special restriction, the drain box can be used for depositing the water can.
The utility model discloses in, the effect of water collector is for retrieving the condensate water to deliver to the drain tank with the condensate water by the difference in height, residual gas arranges to the atmosphere. In the utility model, the first outlet of the water collector is communicated with the first inlet of the drain tank and is used for draining water to the drain tank; the water collector is preferably provided with a gas outlet for discharging residual gas to the atmosphere. The utility model discloses it is right shape, size and the material of water collector do not have special restriction, the water collector can be used for recovery water and exhaust can.
In the utility model, the drain tank and the water collector are preferably communicated through a first pipeline; the utility model has no special limitation on the size and material of the first pipeline, and the first pipeline can convey the water in the water collector into the drainage box; preferably, a valve, preferably a shut-off valve, is provided on the first pipe to control the level of the sump.
The utility model discloses in, the hydrophobic flash vessel of low pressure's effect is hydrophobic for accepting low pressure steam system to with these hydrophobic dilatation, decompression, cooling, with retrieving.
The utility model discloses in, the second import of drain tank is preferred to be communicated through the first export of the hydrophobic flash vessel of second pipeline and low pressure. The utility model discloses it is right the size and the material of second pipeline do not have special restriction, the second pipeline can be used for carrying water can.
In the utility model, the second outlet of the low-pressure drain flash tank is used for exhausting steam; preferably, a third pipeline is arranged at a second outlet of the low-pressure hydrophobic flash tank; the outlet of the third pipeline is preferably communicated with the first inlet of the first primary air heater; and a valve is arranged on the third pipeline, and the valve is preferably a stop valve so as to adjust the exhaust volume and control the exhaust volume entering the first primary air heater. The utility model discloses it is right the shape and the material of third pipeline do not have special restriction, the third pipeline can be used for the exhaust steam can.
The utility model discloses in, the effect of first air heater (newly-increased air heater) is for retrieving the hydrophobic flash tank steam extraction of low pressure to heat the primary air. The utility model discloses do not have special restriction to the first air heater, adopt the air heater that technical personnel in this field are familiar with can, for example can adopt the equipment of SD-NFT — II model that zibo bobo electrical apparatus limited provided.
In the utility model, the low-pressure drain flash tank and the first primary air heater are preferably communicated through a fourth pipeline; a valve is preferably arranged on the fourth pipeline; the valve is preferably a shut-off valve to ensure effective isolation of the first primary air heater during service. The utility model discloses it is right the size and the material of fourth pipeline do not have special restriction, the fourth pipeline can the transportation vapour.
In the utility model, a fifth pipeline is preferably arranged between the water collector and the first primary air heater; preferably, a valve is arranged on the fifth pipeline, and the valve is preferably a stop valve so as to ensure effective isolation of the first primary air heater during maintenance. The utility model discloses it is right the size and the material of fifth pipeline do not have special restriction, the fifth pipeline can the transport water.
The utility model discloses in, the effect of second air heater (original air heater) is for improving a wind cold wind temperature, prevents that the cold junction of air preheater from corroding. The utility model discloses do not have special restriction to the fan heater of second wind, adopt the fan heater that technical personnel in this field are familiar with can, for example can adopt the equipment of SD-NFT — II model that zibo bobo electrical apparatus limited provided.
The utility model discloses in, the import of the warm braw of second air lets in low pressure steam, the pressure of low pressure steam is preferred 0.3 ~ 0.7MPa, more preferred 0.4 ~ 0.6MPa, most preferred is 0.5 MPa.
In the utility model, a sixth pipeline is preferably arranged at the inlet of the second primary air heater; the sixth pipeline is preferably provided with a valve, the valve is preferably a stop valve, and the sixth pipeline is preferably further provided with an air inlet electric valve.
In the utility model, the second primary air heater and the low-pressure drain flash tank are preferably communicated through a seventh pipeline; and a valve is preferably arranged on the seventh pipeline, and the valve is preferably a stop valve so as to realize the recycling of energy and save the cost.
The utility model discloses in, the second export of the warm wind ware of second is preferred and the boiler intercommunication for to carrying the wind in the boiler, the primary air's primary air guarantees that the material is in good fluidization state, provides partial oxygen for the fuel burning simultaneously. In the utility model, the second outlet of the second primary air heater is preferably communicated with the boiler through an eighth pipeline; the eighth pipeline is preferably provided with a primary air outlet baffle, namely an air door.
The utility model discloses in, the second export intercommunication of the second import preferred and first primary air fan heater of second primary air fan heater, more preferably through ninth pipeline intercommunication. The utility model discloses it is right the size and the material of ninth pipeline do not have special restriction, the ninth pipeline can be used for the air delivery can.
In the utility model, the third outlet of the first primary air heater is preferably communicated with the inlet of the fan, and more preferably communicated with the tenth pipeline; the utility model discloses it is right the size and the material of tenth pipeline do not have special restriction, the tenth pipeline can be used for the air delivery can.
In the present invention, the fan is used for providing primary air for the boiler. The utility model discloses it does not have special restriction to the fan, adopt the familiar fan of technical personnel in the field can, if can adopt the equipment of the single-suction double bracing centrifugal fan G6-25-14NO.26.3F model that Jiangsu Jintongling fluid machinery science and technology company limited provided.
The device provided by the utility model adds a group of air heater systems at the upper stream of the primary air fan air heater, and introduces the exhausted steam of the low-pressure flash tank into the primary air fan air heater to heat the primary air; because low pressure flash vessel exhaust steam pressure is lower, if parallelly connected the phenomenon that will cause the lime set to scurry with hydrophobic pipeline and fan heater drainage system, influence system operation, consequently the exhaust steam that will newly-increased fan heater heat transfer adopts independent lime set recovery system and carries out the lime set through the water collector and retrieves, and the lime set of retrieving returns to the drain trap, and remaining exhaust steam is discharged to the atmosphere to realize the cyclic utilization of the energy. The utility model installs the newly added primary air heater to the upper reaches of the original heater, firstly, the upper reaches air temperature is relatively low, which is more beneficial to the recovery of the exhausted steam of the flash tank and the recovery rate of the exhausted steam is high; secondly, the primary air after the heat exchange of the dead steam of the flash tank has a certain temperature, the demand of the low-pressure steam is reduced when the primary air passes through the original air heater, and the purpose of saving the low-pressure steam is achieved. The utility model discloses in all adopt manual valve to cut off between each pipeline to the effective isolation of each system when guaranteeing the operation.
Examples
The schematic structural diagram of the dead steam recycling device of the flash tank provided in this embodiment is shown in fig. 1, and includes:
a drain tank;
the first outlet and the first inlet of the drain tank are communicated through a water collector of a first pipeline, and a stop valve is arranged on the first pipeline; the second outlet of the water collector is a steam outlet for exhausting;
the first outlet and the second inlet of the drain tank are communicated through a second pipeline;
a second outlet of the low-pressure drainage flash tank is provided with a third pipeline, an outlet of the third pipeline is communicated with an inlet of the first primary air heater through a fourth pipeline, and the fourth pipeline is provided with a stop valve; a stop valve is arranged on the third pipeline;
a first outlet of the first primary air heater is communicated with an inlet of the water collector through a fifth pipeline, and a stop valve is arranged on the fifth pipeline;
a sixth pipeline is arranged at a first inlet of the second primary air heater and used for entering low-pressure steam, and a stop valve and an air inlet electric valve are arranged on the sixth pipeline;
a first outlet of the second primary air heater is communicated with an inlet of a low-pressure drainage flash tank (two drainage flash tanks are drawn in the figure, the two drainage flash tanks are substantially the same and are both low-pressure drainage flash tanks) through a seventh pipeline, and a stop valve is arranged on the seventh pipeline;
a second outlet of the second primary air heater is communicated with an inlet of the boiler through an eighth pipeline and used for conveying primary air into the boiler, and a primary air baffle is arranged on the eighth pipeline;
a second inlet of the second primary air heater is communicated with a second outlet of the first primary air heater through a ninth pipeline;
and a third outlet of the first primary air heater is communicated with an inlet of the primary air fan through a tenth pipeline.
The working process of the dead steam recycling device of the flash tank provided by the embodiment is as follows: the exhaust steam (exhaust steam) of the low-pressure drainage flash tank is discharged through an exhaust steam pipeline, the discharged exhaust steam enters a newly-added primary air heater (a first primary air heater) through excess pressure, the exhaust steam after primary air heat exchange is recovered through a water collector, and the condensed water is discharged to a drain tank through a height difference; a manual stop valve is arranged at a steam outlet of the low-pressure drainage flash tank and can be used for adjusting the size of the steam discharge amount and controlling the steam exhaust amount entering the newly-added primary air heater; a manual valve is arranged between the water collector and the drain tank to control the liquid level of the water collector; the inlet and the outlet of the newly added primary air heater are provided with manual valves which are mainly used for ensuring the effective isolation of the newly added primary air heater during the maintenance period;
low-pressure steam enters an original primary air heater (a second primary air heater) for heating, heated warm air enters a boiler, and drained water enters a low-pressure drainage flash tank for treatment; the heated warm air part of the newly added primary air warm air device enters the original primary air warm air device.
According to the embodiment, the device provided by the utility model adds a group of air heater systems at the upstream of the primary air fan air heater, and introduces the exhausted steam of the low-pressure flash tank into the primary air fan air heater to heat the primary air; because low pressure flash vessel exhaust steam pressure is lower, if parallelly connected the phenomenon that will cause the lime set to scurry each other with hydrophobic pipeline and fan heater drainage system, influence system operation, consequently the exhaust steam that will newly-increased fan heater heat transfer adopts independent lime set recovery system and carries out the lime set through the water collector and retrieve, and the lime set of retrieving returns to the drain tank, and remaining exhaust steam is discharged to the atmosphere to realize the cyclic utilization of the energy. The utility model installs the newly added primary air heater to the upper reaches of the original heater, firstly, the upper reaches air temperature is relatively low, which is more beneficial to the recovery of the exhausted steam of the flash tank and the recovery rate of the exhausted steam is high; secondly, the primary air after the heat exchange of the dead steam of the flash tank has a certain temperature, the demand of the low-pressure steam is reduced when the primary air passes through the original air heater, and the purpose of saving the low-pressure steam is achieved. The utility model discloses in all adopt manual valve to cut off between each pipeline to the effective isolation of each system when guaranteeing the operation.
While the invention has been described and illustrated with reference to specific embodiments thereof, these descriptions and illustrations do not limit the invention. It will be clearly understood by those skilled in the art that various changes in form and details may be made therein without departing from the true spirit and scope of the present invention as defined by the appended claims, to adapt a particular situation, material, composition of matter, substance, method or process to the objective, spirit and scope of this application. All such modifications are intended to be within the scope of the claims appended hereto. Although the methods disclosed herein have been described with reference to particular operations performed in a particular order, it should be understood that these operations may be combined, subdivided, or reordered to form equivalent methods without departing from the teachings of the present invention. Accordingly, unless specifically indicated herein, the order and grouping of the operations is not a limitation of the present application.
Claims (10)
1. The utility model provides a flash tank exhaust steam recycling apparatus which characterized in that includes:
a drain tank;
the first outlet of the water collector is communicated with the first inlet of the drain tank;
the first outlet is communicated with the second inlet of the drain tank;
the first outlet of the first primary air heater is communicated with the inlet of the water collector;
and the first outlet is communicated with the inlet of the low-pressure drainage flash tank.
2. The flash tank dead steam recycling device of claim 1, wherein a third pipeline is arranged at the second outlet of the low-pressure hydrophobic flash tank;
the outlet of the third pipeline is communicated with the first inlet of the first primary air heater;
and a valve is arranged on the third pipeline.
3. The flash tank exhaust steam recycling device of claim 1, wherein a sixth pipeline is arranged at an inlet of the second primary air heater.
4. The flash tank exhaust steam recycling device of claim 1, wherein a second outlet of the secondary primary air heater is in communication with a boiler.
5. The flash tank exhaust steam recycling device of claim 1, wherein a second inlet of the secondary primary air heater is communicated with a second outlet of the primary air heater.
6. The flash tank exhaust steam recycling device of claim 1, wherein the third outlet of the first primary air heater is further communicated with the fan inlet.
7. The flash tank dead steam recycling device as claimed in claim 1, wherein the low-pressure hydrophobic flash tank is communicated with the first primary air heater through a fourth pipeline;
and a valve is arranged on the fourth pipeline.
8. The flash tank exhaust steam recycling device of claim 1, wherein a fifth pipeline is arranged between the water collector and the first primary air heater;
and a valve is arranged on the fifth pipeline.
9. The flash tank dead steam recycling device as claimed in claim 1, wherein the second primary air heater and the low-pressure drain flash tank are communicated through a seventh pipeline.
10. The flash tank exhaust steam recycling device of claim 6, wherein the third outlet of the first primary air heater is communicated with the fan through a tenth pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220053772.1U CN216591669U (en) | 2022-01-06 | 2022-01-06 | Flash tank exhaust steam recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220053772.1U CN216591669U (en) | 2022-01-06 | 2022-01-06 | Flash tank exhaust steam recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216591669U true CN216591669U (en) | 2022-05-24 |
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ID=81633561
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220053772.1U Active CN216591669U (en) | 2022-01-06 | 2022-01-06 | Flash tank exhaust steam recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216591669U (en) |
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2022
- 2022-01-06 CN CN202220053772.1U patent/CN216591669U/en active Active
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