CN218523548U - Steam condensate water recycling device for flue gas desulfurization process by circulating fluidized bed method - Google Patents
Steam condensate water recycling device for flue gas desulfurization process by circulating fluidized bed method Download PDFInfo
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- CN218523548U CN218523548U CN202222265744.9U CN202222265744U CN218523548U CN 218523548 U CN218523548 U CN 218523548U CN 202222265744 U CN202222265744 U CN 202222265744U CN 218523548 U CN218523548 U CN 218523548U
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Abstract
The utility model discloses a steam condensate water recycling device of a circulating fluidized bed flue gas desulfurization process, which comprises a condensate water recycling tank and a radiator; the inlet of the condensed water recovery tank is used for being connected with a steam condensed water outlet of the circulating fluidized bed flue gas desulfurization device; the inlet of the radiator is connected with the flash steam outlet of the condensate water recovery tank, and the outlet of the radiator is connected with the flash steam condensate water reflux port of the condensate water recovery tank. In this scheme, through condensate recovery jar so that retrieve the steam condensate water, reach water economy resource purpose to and the flash steam of rethread radiator elimination steam condensate water, avoid on-the-spot a large amount of steam effluviums to cause secondary safety hazard.
Description
Technical Field
The utility model relates to a flue gas treatment technical field, in particular to steam condensate water recycle device of circulating fluidized bed method flue gas desulfurization technology.
Background
Circulating fluidized bed flue gas desulfurization processes are well known to those skilled in the art and provide efficient synergistic removal of SO 2 、NO x And smoke dust and other pollutants, the whole system does not generate waste water, the occupied area is small, the process is simple, and the investment and operation cost is relatively low. The method is mainly applied to the treatment of industrial flue gas in the fields of coal-fired boilers, sintered pellets, coking, catalytic cracking, kilns and the like at present, and has wide application range. The circulating fluidized bed method flue gas desulfurization process is characterized by that the mixed material of calcium-base absorbent, smoke dust and reaction product can be circulated in the interior of circulating fluidized bed method flue gas desulfurization equipment (desulfurizing absorption tower, bag-type dust remover, ash hopper and circulating chute), a large quantity of material can be reacted with pollutant between flue gas, and the excess and small quantity of desulfurized ash can be discharged. In order to ensure that a large amount of materials participating in circulation are in a dry state and have good fluidity, low-pressure steam (usually 0.3Mpa and above 150 ℃) is used for heating equipment directly contacting with the materials, such as an ash bucket of an electric dust collector, an ash bucket of a bag-type dust collector, an air chute, an ash bucket fluidization groove and the like, so that the temperature of smoke and the materials is ensured to be above a certain temperature, and the acid dew point temperature of the smoke is usually required to be above 10 ℃. Therefore, the materials (desulfurized ash) of the whole device can be prevented from being agglomerated and hardened in the device, and the operation faults and risks of a desulfurization system are reduced. Thereby circulating fluidized bed method flue gas desulfurization deviceThe device is provided with a steam heating system, such as a dust catcher ash bucket heating coil, an ash bucket fluidized air heater, a chute fluidized air heater, an ash storehouse fluidized air heater and the like.
The steam consumption of the circulating fluidized bed flue gas desulfurization device is relatively small, and the consumption of low-pressure steam required by a 200Mw generator set matched with the circulating fluidized bed flue gas desulfurization device is about 2t/h (the steam quality is 0.3Mpa and 150 ℃). The steam condensate water heated by the device is in a low-pressure state and flows automatically by gravity.
At present, the steam condensate water treatment mode of a circulating fluidized bed flue gas desulfurization device generally has three modes: the water recycling system is characterized by comprising a nearby drainage ditch (small in amount and directly abandoned), a desulfurization process water tank (the water of the process water tank is used for cooling flue gas or slaking lime and the like) for secondary utilization, and a part of the water is returned to a plant area steam condensate water return pipe network.
However, the following problems exist in the several steam condensate disposal methods:
the in-situ drainage ditch mode is directly embodied as water resource waste, and meanwhile, the phenomenon of serious water vapor emission on the spot of the circulating fluidized desulfurization device occurs, and a large amount of water vapor emission possibly threatens the safety of a nearby power distribution system;
the steam condensate water return tank mode also has the phenomenon of on-site steam bleeding, and in addition, the mode also causes the problems of falling off of paint, accelerated corrosion, scaling and the like of the circulating fluidized bed desulfurization process water tank, so that equipment such as a desulfurization process water pump, a water spray gun and the like are damaged;
the mode of directly connecting back the steam condensate water return pipe network, the situation that the pressure of the steam condensate water is insufficient and the steam condensate water cannot return exists.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a steam condensate water recycle device of circulating fluidized bed method flue gas desulfurization technology through the condensate water accumulator so that retrieve the steam condensate water, reaches the water economy resource purpose to and the flash distillation vapour in the steam condensate water is eliminated to the rethread radiator, avoid on-the-spot a large amount of water steams to cause secondary safety disasters.
In order to achieve the above object, the utility model provides a following technical scheme:
a steam condensate recycling device for a circulating fluidized bed flue gas desulfurization process comprises a condensate recycling tank and a radiator;
the inlet of the condensed water recovery tank is used for being connected with a steam condensed water outlet of the circulating fluidized bed flue gas desulfurization device;
the inlet of the radiator is connected with the flash steam outlet of the condensed water recovery tank, and the outlet of the radiator is connected with the flash steam condensate water reflux port of the condensed water recovery tank.
Preferably, the radiator is disposed above the condensate water recovery tank, and an inlet of the radiator is located at a top end thereof and an outlet thereof is located at a bottom end thereof.
Preferably, the radiator is used for being arranged on a high-rise open platform of the flue gas desulfurization device by the circulating fluidized bed method.
Preferably, the radiator comprises a calandria radiator.
Preferably, the device also comprises a trap valve group;
and the inlet of the drainage valve group is used for being connected with a steam condensate outlet of the circulating fluidized bed flue gas desulfurization device, and the outlet of the drainage valve group is connected with the inlet of the condensate water recovery tank.
Preferably, a high-temperature hydrophobic pump is also included;
and the inlet of the high-temperature drain pump is connected with the outlet of the condensed water recovery tank, and the outlet of the high-temperature drain pump is connected with a water consumption point of the steam condensed water.
Preferably, the device also comprises a liquid level measuring device and a controller;
the liquid level measuring device is arranged on the tank body of the condensed water recovery tank;
the liquid level measuring device and the high-temperature drain pump are in communication connection with the controller, and the controller can control the high-temperature drain pump to be opened and closed according to the measured value of the liquid level measuring device.
Preferably, a mouthpiece valve is further included;
the inlet of the interface valve is connected with the outlet of the high-temperature drain pump, and the outlet of the interface valve is used for being connected with the water consumption point of the steam condensate water.
Preferably, a check valve is also included;
and the inlet of the check valve is connected with the outlet of the high-temperature hydrophobic pump, and the outlet of the check valve is connected with the inlet of the interface valve.
Preferably, a bypass valve is also included;
the inlet of the bypass valve is used for being connected with the steam condensate water outlet of the circulating fluidized bed flue gas desulfurization device, and the outlet of the bypass valve is connected with the inlet of the interface valve.
According to the above technical scheme, the utility model provides a steam condensate water recycle device of circulating fluidized bed method flue gas desulfurization technology, it has following beneficial effect:
1. the steam condensate water of the circulating bed flue gas desulfurization device can be recycled and reused through the condensate water recovery tank, and the requirements of energy conservation and water conservation advocated by the prior country are met;
2. through condensate water recovery tank and radiator, can be so that the steam condensate water that circulating fluidized bed method flue gas desulphurization device produced totally inclosed whole recovery, the on-the-spot gassing phenomenon that does not appear to avoided the high temperature comdenstion water to get into the water tank scale deposit that appears, corrode, damage water pump scheduling problem, avoided secondary safety problems such as power consumption safety that the on-the-spot gassing brought simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of a steam condensate recycling device of a flue gas desulfurization process by a circulating fluidized bed method according to an embodiment of the present invention.
Wherein, 1 is a steam point and a drain valve group for steam of a circulating fluidized bed flue gas desulfurization device, 1.1 is an electric dust removal ash bucket steam heating coil, 1.2 is a bag-type dust remover ship-shaped ash bucket heating coil, 1.3 is an ash bucket fluidized air steam heater, 1.4 is a chute fluidized air steam heater, 1.5 is a bag ash removal air steam heater, 1.6 is a digestion period exhaust bag steam heater, 1.7 is a first drain valve group, 1.8 is a second drain valve group, 1.9 is the third trap valve group, 1.10 is the fourth trap valve group, 1.11 is the fifth trap valve group, 1.12 is the sixth trap valve group, 2 is the trap valve group, 3 is condensate recovery jar and valves, 3.1 is the condensate recovery jar, 3.2 is the escape canal, 4 is radiator and valves, 4.1 is the radiator, 4.2 is discharge valve, 5 is the drainage pump package, 5.1 is the high temperature drainage pump, 6 is the bypass valve, 7 is the check valve, 8 is the interface valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the 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 steam condensate recycling device for the flue gas desulfurization process by the circulating fluidized bed method, which is provided by the embodiment of the utility model, as shown in fig. 1, comprises a condensate recycling tank 3.1 and a radiator 4.1;
the inlet of the condensate water recovery tank 3.1 is used for being connected with a steam condensate water outlet of the circulating fluidized bed flue gas desulfurization device;
the inlet of the radiator 4.1 is connected with the flash steam outlet of the condensed water recovery tank 3.1, and the outlet is connected with the flash steam condensed water reflux port of the condensed water recovery tank 3.1.
It should be noted that, as shown in fig. 1, the steam-using equipment or components of the circulating fluidized bed flue gas desulfurization device include electric dust removal ash bucket steam heating coil 1.1, bag-type dust remover ship-shaped ash bucket heating coil 1.2, ash bucket fluidized air steam heater 1.3, chute fluidized air steam heater 1.4, bag ash removal air steam heater 1.5, digestion period exhaust bag steam heater 1.6 and other equipment which need to consume steam; in addition, the circulating fluidized bed flue gas desulfurization device is also provided with a drain valve group behind each branch pipe where the steam equipment or the part is located, and steam condensate enters the condensate water recovery tank 3.1 after being gathered by the branch pipes.
In addition, the condensate water recovery tank 3.1 is provided with an inlet, an outlet, a flash steam condensate water return port, a safety valve interface, a sewage outlet and other structures. In addition, this scheme adopts condensate water recovery tank 3.1 to combine the mode of radiator 4.1 to in the flash distillation vapour of steam condensate water is convenient for handle, make the flash distillation vapour condensation form the flash distillation vapour condensate water promptly through radiator 4.1 and let it flow back to in the condensate water recovery tank 3.1, thereby help eliminating the secondary flash distillation vapour of steam condensate water when retrieving the steam condensate water.
That is, the scheme is that the steam condensate water generated by the flue gas desulfurization device adopting the circulating fluidized bed method is provided with a condensate water recovery tank 3.1 and a radiator 4.1; the steam condensate is convenient to recover through the condensate water recovery tank 3.1, so that the aim of saving water resources is fulfilled, flash steam in the recovered steam condensate is eliminated through the radiator 4.1, and secondary safety disasters caused by a large amount of steam on site are avoided; and the steam condensate water recycling device of the scheme has low investment and operation cost, and can meet the requirement of water and energy conservation advocated by the state.
According to the above technical solution, the embodiment of the utility model provides a steam condensate water recycle device of circulating fluidized bed method flue gas desulfurization technology, it has following beneficial effect:
1. the steam condensate water of the flue gas desulfurization device adopting the circulating bed method can be recycled through the condensate water recovery tank, so that the requirement of energy conservation and water conservation advocated by the prior country is met;
2. through condensate water recovery tank and radiator, can make the steam condensate water that circulating fluidized bed method flue gas desulfurization device produced totally airtight whole recovery, the on-the-spot gassing phenomenon that does not appear to avoided the high temperature condensate water to get into the water tank scale deposit that appears, corrode, damage water pump scheduling problem, avoided the secondary safety problem such as power consumption safety that the on-the-spot gassing brought simultaneously.
In this solution, as shown in fig. 1, the radiator 4.1 is disposed above the condensate water recovery tank 3.1, and the inlet of the radiator 4.1 is located at the top end thereof, and the outlet is located at the bottom end thereof. That is, the flash steam in the condensate water recovery tank 3.1 flows in from the top inlet of the radiator 4.1, and the flash steam condensate flows back into the condensate water recovery tank 3.1 from the bottom outlet of the radiator 4.1. This scheme is so designed to in the effect of realizing going up, flash distillation vapour condensate water play under the flash distillation vapour, and then make flash distillation vapour condensate water rely on the dead weight to flow back to condensate water recovery tank 3.1 in, need not secondary consumption coolant and extra energy consumption then solved the problem that the flash distillation was out of vapour.
In particular, the radiator 4.1 is intended to be arranged on a high-rise open platform of a flue gas desulfurization plant by means of a circulating fluidized bed process. Wherein, radiator 4.1 arranges in the high-rise empty platform in circulating fluidized bed method flue gas desulfurization device's sack ash bucket to in the vacant place and the space of utilizing sack ash bucket platform, make the steam condensate water recycle device of this scheme have characteristics such as compact structure, rationally distributed.
Preferably, the radiator 4.1 comprises a calandria radiator in order to obtain a good radiating effect of the radiator 4.1. The calandria radiator can realize air heat exchange through a plurality of rows of pipelines, and extra energy consumption is not consumed.
Further, as shown in fig. 1, the steam condensate recycling device for the flue gas desulfurization process by the circulating fluidized bed method provided by the embodiment of the present invention further includes a trap valve group 2;
the inlet of the drain valve group 2 is used for being connected with a steam condensate outlet of the flue gas desulfurization device adopting the circulating fluidized bed method, and the outlet of the drain valve group is connected with the inlet of the condensate water recovery tank 3.1. That is to say, the drainage valve group 2 is arranged between the steam condensate outlet of the circulating fluidized bed flue gas desulfurization device and the inlet of the condensate recovery tank 3.1, so that the steam condensate coming out of the circulating fluidized bed flue gas desulfurization device is further fully condensed.
Still further, as shown in fig. 1, the steam condensate recycling device for flue gas desulfurization by circulating fluidized bed method provided by the embodiment of the present invention further comprises a high temperature drain pump 5.1;
the inlet of the high-temperature drain pump 5.1 is connected with the outlet of the condensate water recovery tank 3.1, and the outlet is used for being connected with a water consumption point of the steam condensate water. This scheme sets up high temperature hydrophobic pump 5.1 through the low reaches at condensate recovery tank 3.1 to carry the steam condensate water in the condensate recovery tank 3.1 to steam condensate water carries to the steam condensate water with the water spot and carries out the reutilization, avoids steam condensate water to appear carrying not smooth problem when the reutilization. In addition, the water consumption point of the steam condensate is equipment and places where the steam condensate can be reused, such as a boiler drain tank.
In order to further optimize the technical scheme, the steam condensate recycling device for the flue gas desulfurization process by the circulating fluidized bed method provided by the embodiment of the utility model also comprises a liquid level measuring device and a controller;
the liquid level measuring device is arranged on the tank body of the condensed water recovery tank 3.1;
the liquid level measuring device and the high-temperature drain pump 5.1 are both in communication connection with the controller, and the controller can control the opening and closing of the high-temperature drain pump 5.1 according to the measured value of the liquid level measuring device. Wherein, the measuring end of the liquid level measuring device is positioned in the tank body of the condensed water recovery tank 3.1. That is to say, the scheme monitors the liquid level of the condensed water in the condensed water recovery tank 3.1 through the liquid level measuring device, and realizes liquid level interlocking with the high-temperature drain pump 5.1 through the controller, namely, two high-temperature drain pumps 5.1 are arranged, and when the liquid level is higher, the two high-temperature drain pumps 5.1 work simultaneously; when the liquid level is in the middle, a high-temperature drain pump 5.1 works; when the liquid level is low, neither high temperature drain pump 5.1 is operating.
In the scheme, as shown in fig. 1, the steam condensate recycling device for the flue gas desulfurization process by the circulating fluidized bed method provided by the embodiment of the invention further comprises an interface valve 8;
the inlet of the interface valve 8 is connected with the outlet of the high-temperature drain pump 5.1, and the outlet is used for being connected with a water point for steam condensate water. Wherein the mouthpiece valve 8 is connected to the steam condensate water consumption point by a pipe. The scheme controls the connection and disconnection of the recycling of the steam condensate through the interface valve 8.
Further, as shown in fig. 1, the steam condensate recycling device of the flue gas desulfurization process by the circulating fluidized bed method provided by the embodiment of the present invention further includes a check valve 7;
the inlet of the check valve 7 is connected with the outlet of the high-temperature drain pump 5.1, and the outlet is connected with the inlet of the interface valve 8. This scheme avoids the comdenstion water backward flow through setting up check valve 7 promptly.
Still further, as shown in fig. 1, the steam condensate recycling device of the flue gas desulfurization process by the circulating fluidized bed method provided by the embodiment of the present invention further comprises a bypass valve 6;
the inlet of the bypass valve 6 is used for being connected with a steam condensate water outlet of the flue gas desulfurization device by the circulating fluidized bed method, and the outlet is connected with the inlet of the interface valve 8. Wherein, this scheme is provided with the bypass for the condensate recovery pipeline to be provided with bypass valve 6 on this bypass, so that steam condensate water can also normally recycle under the maintenance operating mode at equipment such as condensate water accumulator 3.1, high temperature drain pump 5.1 and radiator 4.1.
The present solution is further described below with reference to specific embodiments:
the equipment for consuming low-pressure steam (usually above 0.3mpa and 150 ℃) by a circulating fluidized bed flue gas desulfurization device mainly comprises an electric dust collector ash hopper, a cloth bag ash removing device, an air chute device, an ash hopper fluidization device and the like. As shown in fig. 1, the steam point and drain valve group for steam of the circulating fluidized bed flue gas desulfurization device comprises an electric dust removal ash bucket steam heating coil 1.1, a bag-type dust remover ship-shaped ash bucket heating coil 1.2, an ash bucket fluidized air steam heater 1.3, a chute fluidized air steam heater 1.4, a bag ash removal air steam heater 1.5, a digestion period exhaust bag steam heater 1.6 and other devices which need to consume steam, and 1.7-1.12 are branch pipe drain valve groups.
The steam condensate water enters the drain valve group 2 after being gathered by the branch pipes, and the drain valve group 2 ensures that the steam condensate water passing through the circulating fluidized bed flue gas desulfurization device is further fully condensed and then enters the condensate water tank.
The condensate water recovery tank and the valve group (namely the condensate water recovery tank) do not specify specific structural types, and mainly comprise a water tank body, a liquid level measuring device, a safety valve, a flash steam discharge port, a flash steam condensate water backflow port, a drain outlet, a drain valve and a drain pump interface valve.
The specific structure form of the drain pump is not specified by the drain pump, the rated flow of each drain pump is conveyed to meet the conveying requirement of the maximum steam condensate water production amount, and the head of the drain pump meets the requirements on the terminal distance and the height of a secondary water consumption point of the steam condensate water. The scheme is provided with two drainage pumps, and the two drainage pumps work simultaneously when the liquid level is higher; when the liquid level is in the middle, one drainage pump works; when the liquid level is low, the hydrophobic pump is not operated. The condensed water tank and the drain pump are arranged on a 0m layer platform of the flue gas desulfurization device by a circulating fluidized bed method.
The flash steam of the condensate water tank is connected to the radiator, and the radiator in the valve group are not specified with specific structural arrangement types. The radiator is provided with the multiunit, and flash steam connects from each group's radiator upper end, and flash steam condensate water gathers simultaneously from the lower extreme and flows into the condensate water pitcher, and each group's radiator sets up the gas vent, establishes a discharge valve that gathers behind the UNICOM.
The preferred calandria radiator type of radiator arranges in the high-rise platform of circulating fluidized bed method flue gas desulfurization device, utilizes a large amount of unnecessary vacant platforms of device, and the cooling tube passes through the air heat transfer in huge space, flows back to the condensate water jar through the action of gravity after the condensation of flash distillation vapour to solve current steam condensate water and utilize the gassing to cause equipment damage and electrical equipment safety problem. The selection of the radiator is determined according to the quality and the flash evaporation amount of the steam condensate water.
This scheme is equipped with condensate recovery unit's bypass, and sets up the bypass valve on the bypass for special operating mode such as equipment overhauls such as condensate tank, drainage pump and cooling tube work down.
The interface valve 8 is a conveying device interface valve to a steam condensate secondary utilization point, wherein the interface valve 8 is connected to the steam condensate secondary utilization point through a pipeline; in addition, the secondary utilization point of the steam condensate is equipment and places where the steam condensate can be secondarily utilized, such as a boiler drain tank.
As shown in fig. 1, the use method of the steam condensate water recycling device of the flue gas desulfurization process by the circulating fluidized bed method comprises the following steps: steam from a plant main pipe is used for condensate water heated by equipment such as an ash bucket heating coil, a fluidized air steam heater and the like, the condensate water enters a condensate water tank (namely a condensate water recovery tank) with a liquid level linkage after passing through a main pipe drain valve, the condensate water tank reaches a certain liquid level, and a drain pump works to convey the condensate water to a boiler drain tank (or other water consumption points). In addition, the condensate tank is provided with a safety valve interface, a drain outlet, a flash steam outlet and a flash steam condensate reflux port. Utilize circulation fluidized bed method flue gas desulfurization dust collector's sack ash bucket platform, this platform has a lot of vacant places and a large amount of spaces usually, consequently can set up the calandria radiator, and the calandria radiator inserts from condensate water tank flash distillation vapour export, flows back to the condensate water tank through flash distillation vapour condensate water backward flow mouth, sends the comdenstion water to the boiler drain trap through the effect of hydrophobic pump again and carries out the reutilization.
The steam condensate water recycling device of the circulating fluidized bed flue gas desulfurization process comprises a drain valve, a condensate water tank, a matched valve group, a condensate water drain pump, a calandria radiator and a liquid level measuring device matched with the condensate water tank. The device can recycle the steam condensate water that circulating fluidized bed method flue gas desulfurization device used to reach the water economy resource purpose, avoid the on-the-spot a large amount of steam effluviums to cause secondary safety disasters, also avoided the steam condensate water directly to return to the factory and be responsible for the problem that the return water is smooth, the device investment is low with the running cost in addition, satisfies the requirement that the country advocated water conservation and energy saving.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A steam condensate water recycling device for a circulating fluidized bed flue gas desulfurization process is characterized by comprising a condensate water recycling tank (3.1) and a radiator (4.1);
the inlet of the condensed water recovery tank (3.1) is used for being connected with the steam condensed water outlet of the flue gas desulfurization device by the circulating fluidized bed method;
the inlet of the radiator (4.1) is connected with the flash steam outlet of the condensed water recovery tank (3.1), and the outlet is connected with the flash steam condensate water reflux port of the condensed water recovery tank (3.1).
2. The steam condensate recycling device of the circulating fluidized bed flue gas desulfurization process according to claim 1, wherein the radiator (4.1) is disposed above the condensate water recycling tank (3.1), and the inlet of the radiator (4.1) is located at the top end thereof and the outlet is located at the bottom end thereof.
3. The steam condensate recycling device of the circulating fluidized bed flue gas desulfurization process according to claim 2, wherein the radiator (4.1) is used for being arranged on a high-rise open platform of the circulating fluidized bed flue gas desulfurization device.
4. The steam condensate recycling device of the circulating fluidized bed flue gas desulfurization process according to claim 2, wherein the radiator (4.1) comprises a calandria radiator.
5. The steam condensate recycling device of the circulating fluidized bed flue gas desulfurization process according to claim 1, further comprising a trap valve group (2);
the inlet of the drain valve group (2) is used for being connected with a steam condensate outlet of the circulating fluidized bed flue gas desulfurization device, and the outlet of the drain valve group is connected with the inlet of the condensate water recovery tank (3.1).
6. The steam condensate water recycling device of the circulating fluidized bed flue gas desulfurization process according to claim 1, further comprising a high-temperature drain pump (5.1);
the inlet of the high-temperature drain pump (5.1) is connected with the outlet of the condensed water recovery tank (3.1), and the outlet is used for being connected with a water consumption point of the steam condensed water.
7. The steam condensate recycling device for the circulating fluidized bed flue gas desulfurization process according to claim 6, further comprising a liquid level measuring device and a controller;
the liquid level measuring device is arranged on the tank body of the condensed water recovery tank (3.1);
the liquid level measuring device and the high-temperature drain pump (5.1) are in communication connection with the controller, and the controller can control the opening and closing of the high-temperature drain pump (5.1) according to the measured value of the liquid level measuring device.
8. The steam condensate recycling device of the circulating fluidized bed flue gas desulfurization process according to claim 6, further comprising a port valve (8);
the inlet of the interface valve (8) is connected with the outlet of the high-temperature drain pump (5.1), and the outlet is used for being connected with a water point for the steam condensate water.
9. The steam condensate recycling apparatus for a circulating fluidized bed flue gas desulfurization process according to claim 8, further comprising a check valve (7);
the inlet of the check valve (7) is connected with the outlet of the high-temperature drain pump (5.1), and the outlet is connected with the inlet of the interface valve (8).
10. The steam condensate water recycling device of the circulating fluidized bed flue gas desulfurization process according to claim 8, further comprising a bypass valve (6);
the inlet of the bypass valve (6) is used for being connected with a steam condensate outlet of the circulating fluidized bed flue gas desulfurization device, and the outlet of the bypass valve is connected with the inlet of the interface valve (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222265744.9U CN218523548U (en) | 2022-08-26 | 2022-08-26 | Steam condensate water recycling device for flue gas desulfurization process by circulating fluidized bed method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222265744.9U CN218523548U (en) | 2022-08-26 | 2022-08-26 | Steam condensate water recycling device for flue gas desulfurization process by circulating fluidized bed method |
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| CN218523548U true CN218523548U (en) | 2023-02-24 |
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| CN202222265744.9U Active CN218523548U (en) | 2022-08-26 | 2022-08-26 | Steam condensate water recycling device for flue gas desulfurization process by circulating fluidized bed method |
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