CN215723141U - Energy-saving continuous blowdown flash tank - Google Patents
Energy-saving continuous blowdown flash tank Download PDFInfo
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- CN215723141U CN215723141U CN202121195075.1U CN202121195075U CN215723141U CN 215723141 U CN215723141 U CN 215723141U CN 202121195075 U CN202121195075 U CN 202121195075U CN 215723141 U CN215723141 U CN 215723141U
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Abstract
The utility model discloses an energy-saving continuous blowdown flash tank, which comprises a water-vapor separation device for separating water vapor from boiler blow-off water, a water dispersion plate arranged in the water-vapor separation device and used for dispersing sewage, and a heat exchange device arranged in the water-vapor separation device, positioned below the water dispersion plate and used for exchanging and recycling sewage heat. According to the boiler sewage heat exchange device, after boiler sewage is pumped into the water-steam separation device, the boiler sewage is dispersed into small stream water or small water drops through the water dispersion plate, so that the contact area between the boiler sewage and the heat exchange tube is increased, the heat exchange efficiency is improved, the temperature of the boiler sewage is reduced through heat exchange, the temperature of flowing water in the heat exchange tube is increased, the heat of the boiler sewage is recycled, the amount of clean water specially used for reducing the temperature of the sewage is reduced, the waste of energy is reduced, and the energy conservation and emission reduction are realized.
Description
Technical Field
The utility model relates to the field of oil-gas-fired coal-fired boilers, in particular to an energy-saving continuous pollution discharge flash tank.
Background
In the production process of the oil-gas-coal-fired steam boiler, in order to keep the water quality of the boiler to meet the operation requirement and avoid scaling of boiler pipelines, a continuous sewage discharge port is arranged on a boiler barrel, so that the boiler sewage with high salt concentration can be discharged continuously. The temperature is still higher when this kind of blowdown water is discharged, and the heat of blowdown water is obtained through the energy conversion of fuel burning, and the heat of sewage does not utilize and equals the waste of fuel, and the heat of blowdown water can't be retrieved to current waste fitting discharging, has wasted the heat resource, has also increased manufacturing cost for the enterprise. In order to recycle the heat of the sewage, a sewage disposal device capable of recycling the heat of the sewage of the boiler is needed.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the utility model provides an energy-saving continuous blowdown flash tank, it is high to have solved current continuous blowdown flash tank drainage temperature, the unable problem of retrieving of blowdown water heat, practices thrift the water that cools off high temperature blowdown water and use simultaneously.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides an energy-saving continuous blowdown flash tank, including the steam separator who is used for boiler blow off water vapor separation, set up in the steam separator and be used for the scattered water board of dispersion sewage, and set up in the steam separator and be located scattered water board below and be used for the heat transfer device of sewage heat exchange recovery.
Further, the steam separator includes the flash vessel barrel, set up in on the flash vessel barrel and with the flash vessel barrel constitutes airtight spatial structure's upper cover and low head, set up in be used for the inlet tube that boiler blow-down water got into on the flash vessel barrel, set up in the steam outlet pipe that uses steam emission on the upper cover, set up in the upper cover is used for the exhaust steam pipe of pressure evacuation, set up in be used for the outlet pipe of discharging behind the heat transfer of boiler blow-down water on the low head, set up in be used for on the low head heat exchanger cold water inlet tube that heat transfer device's cold water got into, set up in be used for on the flash vessel barrel heat exchanger hot water outlet pipe that heat transfer device's hot water flows out, and set up in be used for on the flash vessel barrel and overhaul the manhole device of maintaining.
Furthermore, the heat exchange device comprises a heat exchanger water inlet header connected with the heat exchanger cold water inlet pipe, a heat exchanger water outlet header connected with the heat exchanger hot water outlet pipe, and a heat exchange pipe arranged between and communicated with the heat exchanger water inlet header and the heat exchanger water outlet header.
Further, the heat exchange tube is provided with many, just the heat exchange tube is snakelike.
Furthermore, still be equipped with in the flash vessel barrel and be used for strengthening the heat exchanger collection case of intaking with the collection case support of intaking and the collection case support of going out of heat exchanger water header.
Further, the heat exchange tube is also provided with a heat exchange tube support for reinforcing the support of the heat exchange tube.
Furthermore, the flash tank barrel is also provided with an on-site liquid level pipe for detecting the liquid level height in the flash tank barrel.
Furthermore, the flash tank barrel is also provided with a remote liquid level pipe for remotely detecting the liquid level in the flash tank barrel.
Furthermore, still be equipped with the ear seat of being convenient for carry fixed on the flash tank barrel.
Furthermore, a safety valve mounting flange for mounting a safety valve is further arranged on the steam exhaust pipe.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the boiler sewage heat exchange device, after boiler sewage is pumped into the water-steam separation device, the boiler sewage is dispersed into small stream water or small water drops through the water dispersion plate, so that the contact area between the boiler sewage and the heat exchange tube is increased, the heat exchange efficiency is improved, the temperature of the boiler sewage is reduced through heat exchange, the temperature of flowing water in the heat exchange tube is increased, the heat of the boiler sewage is recycled, the amount of clean water specially used for reducing the temperature of the sewage is reduced, the waste of energy is reduced, and the energy conservation and emission reduction are realized.
(2) The heat exchange tube is arranged in a coiled tube structure, so that the contact area between the filtered sewage and the heat exchange tube is increased, and the heat exchange efficiency is further improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is a side view of the present invention.
FIG. 4 is a cross-sectional view taken along line A-A of the present invention.
FIG. 5 is a cross-sectional view of the present invention taken along line B-B.
FIG. 6 is a cross-sectional view of the present invention taken along line C-C.
Wherein, the names corresponding to the reference numbers are:
1-a flash tank cylinder, 2-an upper end enclosure, 3-a lower end enclosure, 4-a manhole device, 5-a water inlet flange, 6-a water inlet pipe, 7-a water dispersion plate, 8-a water dispersion plate support, 9-a water outlet pipe, 10-a water outlet flange, 11-a heat exchanger cold water inlet flange, 12-a heat exchanger cold water inlet pipe, 13-a heat exchanger water inlet header, 14-a water inlet header support, 15-a heat exchange pipe, 16-a heat exchange pipe support, 17-a heat exchanger water outlet header, 18-a water outlet header support, 19-a heat exchanger hot water outlet pipe, 20-a heat exchanger hot water outlet flange, 21-a steam outlet pipe, 22-a steam outlet flange, 23-a steam exhaust pipe, 24-a safety valve, 25-a pressure gauge pipe and 26-an in-situ liquid level pipe, 27-in-situ liquid level flange, 28-remote transmission liquid level pipe, 29-remote transmission liquid level flange and 30-lug seat.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.
As shown in FIGS. 1-6:
an energy-saving continuous blowdown flash tank, used for realizing the recovery and utilization of the heat of the sewage of the boiler, reduce the waste of the energy, realize energy conservation and emission reduction, its concrete structure includes the water vapor separator, water board 7 and heat-exchanger rig of dispersing; wherein, steam separator is used for separating vapor and liquid water in the boiler sewage to provide the space place of heat exchange, the scattering and disappearing board is used for shunting sewage and promotes its area of contact with heat transfer device, promotes the efficiency of heat transfer.
Specifically, the water-vapor separation device comprises a flash tank barrel 1, an upper end enclosure 2 at the upper part of the flash tank barrel 1, a lower end enclosure 3 at the lower part of the flash tank barrel 1 and a manhole device 4 at the left side of the flash tank barrel 1; wherein flash vessel barrel 1, upper cover 2 and low head 3 constitute an inclosed spatial structure, and manhole device 4 provides personnel and gets into inside passageway, the maintenance and the maintenance of the interior part of being convenient for.
Set up inlet tube 6 on the 1 back wall of flash tank barrel, be provided with into water flange 5 at inlet tube 6 tip, flange and the flange 5 of intaking on the female pipe of the continuous blowdown of boiler dock, and the blowdown water passes through inlet tube 6 and gets into inside flash tank barrel 1.
The water dispersing plate 7 is fixed on the inner wall of the flash tank barrel 1 through the water dispersing plate support 8, the water dispersing plate 7 disperses the sewage entering the flash tank 1 into small strands of running water or small water drops, the contact area between the small strands of running water and the heat exchange device is increased, and meanwhile, the phenomenon that the heat exchange device below the flash tank is directly washed by the strands of water is avoided, so that the service life of the heat exchange device is influenced; the export of going the lower part after the drain gets into flash tank barrel 1 from upper portion flows, absorbs the heat of drain at this in-process heat transfer device, with the temperature drop of drain to about 40 ℃ to outlet pipe 9 through setting up in the lower part of low head 3 flows, is provided with delivery port flange 10 at outlet pipe 9 lower extreme, and delivery port flange 10 is used for connecting the cooling bath inlet pipe flange, and the drain after the cooling passes through the cooling bath inlet pipe and arranges into the cooling bath.
A steam outlet pipe 21 is arranged at the upper part of the upper seal head 2, a steam outlet flange 22 is arranged at the end part of the steam outlet pipe 21, sewage enters the interior of the flash tank barrel 1 and then is flashed into steam, and the steam is connected with a user steam pipe through the steam outlet flange 22; the upper end enclosure 2 is also provided with a steam exhaust pipe 23, the upper end part of the steam exhaust pipe 23 is provided with a safety valve mounting flange 24 for mounting a safety valve, when the internal pressure of the pollution discharge flash tank exceeds a set value, the safety valve is automatically opened, the overpressure operation of the pollution discharge flash tank is avoided, and the safety of the pollution discharge flash tank is ensured.
The lower end socket 3 is provided with a heat exchanger cold water inlet pipe 12, the lower end part of the heat exchanger cold water inlet pipe 12 is provided with a heat exchanger cold water inlet flange 11, the heat exchanger cold water inlet flange 11 is used for being connected with a water supply pipe flange, and cold water enters the upper end part of the heat exchanger cold water inlet pipe 12 and then enters a heat exchanger water inlet header 13.
The heat exchange device comprises a heat exchanger water inlet header 13, a heat exchanger water outlet header 17 and heat exchange tubes 15, wherein the heat exchanger water inlet header 13 distributes water into the heat exchange tubes 15 between the heat exchanger water inlet header 13 and the heat exchanger water outlet header 17; the heat exchange tubes 15 can be provided with a plurality of tubes to increase the heat exchange area, and meanwhile, the heat exchange tubes are arranged in a coiled tube structure to further increase the heat exchange area; the water in the heat exchange tube 15 absorbs heat and is heated up and then enters the water outlet header 17 of the water inlet heat exchanger. Hot water in the heat exchanger water outlet header 17 is discharged and delivered through the heat exchanger hot water outlet pipe 19 and the heat exchanger, the heat exchanger hot water outlet pipe 19 is provided with a heat exchanger hot water outlet flange 20, and the heat exchanger hot water outlet flange 20 is connected with a hot water main pipe flange and delivers the hot water to hot water equipment. In order to enhance the support for the heat exchanger water inlet header 13 and the heat exchanger water outlet header 17, a water inlet header support 14 and a water outlet header support 18 are respectively arranged for the heat exchanger water inlet header 13 and the heat exchanger water outlet header 17; while also providing the heat exchange tube 15 with a heat exchange tube support 16.
An on-site liquid level pipe 26 is arranged on the outer side of the front wall of the flash tank barrel 1, an on-site liquid level flange 27 is arranged at the end part of the on-site liquid level pipe 26, a remote transmission liquid level pipe 28 is arranged at the position of 45 degrees of the central line clip angle of the on-site liquid level pipe, a remote transmission liquid level flange 29 is arranged at the end part of the remote transmission liquid level pipe 28, and the on-site liquid level pipe 26 realizes measurement and display of the liquid level in the flash tank barrel 1; the remote liquid level pipe 28 realizes the remote measurement of the liquid level in the flash tank barrel 1. Through the monitoring of each water level gauge to the blowdown water level in the flash tank, guarantee that the heat exchanger submerges all the time in the blowdown water when work, guarantee the efficient work of heat exchanger.
The upper part of the outer side of the side wall of the flash tank cylinder body 1 is also provided with two lug seats 30, the two lug seats 30 are positioned on the same horizontal plane, the flash tank cylinder body 1 is uniformly divided by the two lug seats 28, and the lug seats 28 are used for fixing the cylinder body during transportation or use, so that the cylinder body is prevented from toppling over, and the normal use of a product is better protected; meanwhile, a pressure gauge pipe 25 is further arranged on the outer side of the side wall of the flash tank barrel 1 and used for conveniently and rapidly installing a pressure gauge, so that real-time monitoring of pressure is realized.
The flash tank cylinder 1, the upper seal head 2, the lower seal head 3 and the manhole device 4 are all made of Q245R materials, the water inlet flange 5, the water outlet flange 10, the heat exchanger cold water inlet flange 11, the heat exchanger hot water outlet flange 20, the steam outlet flange 22, the safety valve mounting flange 24, the on-site liquid level flange 27 and the remote transmission liquid level flange 29 are all made of 20 (NB/T47008) materials, the water inlet pipe 6, the water dispersion plate 7, the water dispersion plate support 8, the water outlet pipe 9, the heat exchanger cold water inlet pipe 12, the heat exchanger water inlet header 13, the heat exchanger water outlet header 17, the heat exchanger hot water outlet pipe 19, the steam exhaust pipe 23, the pressure gauge pipe 25, the on-site liquid level pipe 26 and the remote transmission liquid level pipe 28 are all made of 20(GB/T3087) materials, the heat exchange pipe 15 is made of 20 (GB/T9948) materials, the heat exchanger water inlet header support 14, the heat exchange pipe support 16, the heat exchanger water header support 18 and the steam outlet pipe 21, the ear mount 30 is made of Q235B material.
The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, but all the insubstantial modifications or changes made within the spirit and scope of the main design of the present invention, which still solve the technical problems consistent with the present invention, should be included in the scope of the present invention.
Claims (10)
1. The utility model provides an energy-saving continuous blowdown flash tank which characterized in that: the device comprises a water-vapor separation device for separating water and vapor of boiler blow-off water, a water-dispersing plate (7) which is arranged in the water-vapor separation device and used for dispersing sewage, and a heat exchange device which is arranged in the water-vapor separation device and is positioned below the water-dispersing plate (7) and used for exchanging and recycling sewage heat.
2. The energy-saving continuous blowdown flash tank of claim 1, wherein: the water-vapor separation device comprises a flash tank barrel (1), an upper end enclosure (2) and a lower end enclosure (3) which are arranged on the flash tank barrel (1) and form an airtight space structure with the flash tank barrel (1), a water inlet pipe (6) which is arranged on the flash tank barrel (1) and used for boiler blow-off water to enter, a steam outlet pipe (21) which is arranged on the upper end enclosure (2) and used for steam discharge, a steam exhaust pipe (23) which is arranged on the upper end enclosure (2) and used for pressure evacuation, a water outlet pipe (9) which is arranged on the lower end enclosure (3) and used for discharging after heat exchange of boiler blow-off water, a heat exchanger cold water inlet pipe (12) which is arranged on the lower end enclosure (3) and used for entering of cold water of a heat exchange device, and a heat exchanger hot water outlet pipe (19) which is arranged on the flash tank barrel (1) and used for hot water of the heat exchange device to flow out, and the manhole device (4) is arranged on the flash tank cylinder body (1) and is used for overhauling and maintaining.
3. The energy-saving continuous blowdown flash tank of claim 2, wherein: the heat exchange device comprises a heat exchanger water inlet header (13) connected with a heat exchanger cold water inlet pipe (12), a heat exchanger water outlet header (17) connected with a heat exchanger hot water outlet pipe (19), and a heat exchange pipe (15) arranged between the heat exchanger water inlet header (13) and the heat exchanger water outlet header (17) and communicated with the heat exchanger water inlet header and the heat exchanger water outlet header.
4. The energy-saving continuous blowdown flash tank of claim 3, wherein: the heat exchange tube (15) is provided with a plurality of tubes, and the heat exchange tube (15) is in a snake shape.
5. The energy-saving continuous blowdown flash tank of claim 4, wherein: the flash tank is characterized in that a water inlet header support (14) and a water outlet header support (18) for reinforcing the heat exchanger water inlet header (13) and the heat exchanger water outlet header (17) are further arranged in the flash tank barrel (1).
6. The energy-saving continuous blowdown flash tank of claim 5, wherein: the heat exchange tube (15) is also provided with a heat exchange tube support (16) for reinforcing the support thereof.
7. The energy-saving continuous blowdown flash tank of claim 6, wherein: the flash tank is characterized in that an on-site liquid level pipe (26) used for detecting the liquid level height in the flash tank barrel (1) is further arranged on the flash tank barrel (1).
8. The energy-saving continuous blowdown flash tank of claim 7, wherein: the flash tank is characterized in that a remote liquid level pipe (28) for remotely detecting the liquid level in the flash tank barrel (1) is further arranged on the flash tank barrel (1).
9. The energy-saving continuous blowdown flash tank of claim 8, wherein: the flash tank barrel (1) is further provided with an ear seat (30) convenient to carry and fix.
10. The energy-saving continuous blowdown flash tank of claim 9, wherein: and a safety valve mounting flange (24) for mounting a safety valve is also arranged on the steam exhaust pipe (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121195075.1U CN215723141U (en) | 2021-05-31 | 2021-05-31 | Energy-saving continuous blowdown flash tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121195075.1U CN215723141U (en) | 2021-05-31 | 2021-05-31 | Energy-saving continuous blowdown flash tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215723141U true CN215723141U (en) | 2022-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121195075.1U Active CN215723141U (en) | 2021-05-31 | 2021-05-31 | Energy-saving continuous blowdown flash tank |
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| Country | Link |
|---|---|
| CN (1) | CN215723141U (en) |
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2021
- 2021-05-31 CN CN202121195075.1U patent/CN215723141U/en active Active
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