CN211069060U - Circulation recycling system for evaporative steam condensate - Google Patents
Circulation recycling system for evaporative steam condensate Download PDFInfo
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- CN211069060U CN211069060U CN201921681626.8U CN201921681626U CN211069060U CN 211069060 U CN211069060 U CN 211069060U CN 201921681626 U CN201921681626 U CN 201921681626U CN 211069060 U CN211069060 U CN 211069060U
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Abstract
The utility model relates to a waste water cyclic utilization technical field especially relates to an evaporation steam condensate recycling system. The evaporation steam condensate recycling system comprises an exhaust-heat boiler device, a water supplementing device and evaporation steam utilization equipment, wherein the exhaust-heat boiler device comprises at least one exhaust-heat boiler, the water supplementing device comprises a condensate heat exchanger and a water supplementing tank, the condensate heat exchanger is connected with the evaporation steam utilization equipment, the condensate heat exchanger is connected with the water supplementing tank, each exhaust-heat boiler is respectively connected with the water supplementing tank, and each exhaust-heat boiler is respectively connected with the evaporation steam utilization equipment. The utility model provides an evaporation steam condensate circulation recycling system has realized the cyclic utilization to evaporation steam condensate, has improved evaporation steam condensate's rate of recovery, ensures exhaust-heat boiler recovery quality of water up to standard moreover, has ensured exhaust-heat boiler's life, has reduced ionic membrane caustic soda's manufacturing cost.
Description
Technical Field
The utility model relates to a waste water cyclic utilization technical field especially relates to an evaporation steam condensate recycling system.
Background
In the production process of producing alkali by the ion membrane method, medium-pressure steam (not less than 0.8Mpa) is adopted in the evaporation process to provide a heat source for the falling-film evaporator, and the alkali liquor is concentrated from 32% to 48%. After the condensate after latent heat is released by steam exchanges heat with alkali liquor to recover heat, the condensate enters a steam condensate storage tank and is conveyed to primary saline water, a primary water station and the like to serve as water replenishing, when the temperature in summer is high, the recycling rate of the steam condensate is low, the water quality index of the steam condensate is very good, and the condensate is wasted as primary saline water for salt replenishing. The water supplement of the existing solid caustic soda waste heat boiler is pure water, the pH value is low, certain corrosion can be caused to the boiler, and the drum wall of the waste heat boiler is leaked.
Therefore, the traditional lower evaporation steam condensate recycling mode is not energy-saving, and is difficult to recycle in high-temperature seasons in summer, so that the recycling efficiency of the evaporation steam condensate is low. The traditional solid caustic soda waste heat boiler adopts pure water for water supplement, has certain corrosivity, further influences the service life of equipment, and has high cost.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model aims at providing an evaporation steam condensate recycling system solves current evaporation steam condensate recycling inefficiency, and current exhaust-heat boiler adopts the pure water moisturizing can influence life, problem with high costs.
(II) technical scheme
In order to solve the technical problem, the utility model provides an evaporation steam condensate recycling system, which comprises a waste heat boiler device, a water supplementing device and evaporation steam utilization equipment, wherein the waste heat boiler device comprises at least one waste heat boiler, and the water supplementing device comprises a condensate heat exchanger and a water supplementing tank; a condensate inlet of the condensate heat exchanger is connected with a condensate outlet of the evaporation steam utilization equipment, and a condensate outlet of the condensate heat exchanger is connected with a water supplementing inlet of the water supplementing tank; and the water replenishing inlet of each waste heat boiler is respectively connected with the water replenishing outlet of the water replenishing tank, and the steam outlet of each waste heat boiler is respectively connected with the steam inlet of the evaporation steam utilization equipment.
Furthermore, a condensate outlet of the condensate heat exchanger is connected with a water supplementing inlet of the water supplementing tank through a condensate conveying pipeline, and a condensate water supplementing valve is arranged on the condensate conveying pipeline; the water replenishing tank is characterized by further comprising a pure water conveying pipeline, the pure water conveying pipeline is connected with a water replenishing inlet of the water replenishing tank, and a pure water replenishing valve is arranged on the pure water conveying pipeline.
Further, an online pH meter is arranged at a water replenishing inlet of the water replenishing tank.
Furthermore, a water replenishing outlet of the water replenishing tank is connected with a water replenishing output main pipeline, and the water replenishing output main pipeline is respectively connected with a waste heat boiler branch pipeline and a cooling water branch pipeline; the water replenishing inlet of each waste heat boiler is respectively connected with the branch pipelines of the waste heat boilers; the cooling water branch pipeline is connected with the cooling water equipment.
Furthermore, a plurality of water replenishing pumps arranged in parallel are connected to the water replenishing output main pipeline.
Furthermore, a pressure gauge and a cooling water pressure control valve are respectively arranged on the cooling water branch pipeline.
Furthermore, a steam pressure control valve is respectively arranged at a steam outlet of each waste heat boiler.
Furthermore, a boiler liquid level control valve is respectively arranged at the water replenishing inlet of each waste heat boiler.
Furthermore, each exhaust-heat boiler is respectively provided with a liquid level sensor, each liquid level sensor is respectively connected with a controller, and the controller is respectively connected with each boiler liquid level control valve.
Furthermore, each waste heat boiler is respectively provided with a boiler liquid level meter, a camera is respectively arranged right in front of each boiler liquid level meter, and each camera is correspondingly arranged on each waste heat boiler through a mounting bracket; and each camera is respectively connected with the hard disk video recorder.
(III) advantageous effects
The above technical scheme of the utility model has following advantage:
the utility model provides an evaporation steam condensate circulation recycling system, the evaporation steam condensate that evaporation steam utilizes equipment to produce after the heat utilization of evaporation steam carries to the condensate heat exchanger and carries out further cooling, then the evaporation steam condensate after the cooling is carried to the moisturizing jar, the moisturizing jar carries evaporation steam condensate to each exhaust-heat boiler again, thereby provide the moisturizing for exhaust-heat boiler, then each exhaust-heat boiler carries the evaporation steam who produces to evaporation steam utilizes equipment again, thereby for evaporation steam utilizes equipment to provide the heat source, and then realized the cyclic utilization to evaporation steam condensate, the rate of recycling of evaporation steam condensate has been improved, and ensure that exhaust-heat boiler recovery quality of water is up to standard, exhaust-heat boiler's life has been ensured, the manufacturing cost of ionic membrane caustic soda has been reduced.
Drawings
Fig. 1 is a structural diagram of a recycling system of the evaporation steam condensate in the embodiment of the present invention.
In the figure: 1: an evaporative steam utilization device; 2: a waste heat boiler; 3: a condensate heat exchanger; 4: a water replenishing tank; 5: a condensate transfer line; 6: a condensate water replenishing valve; 7: a pure water delivery line; 8: a pure water replenishing valve; 9: a water replenishing output main pipeline; 10: branch pipelines of the waste heat boiler; 11: a cooling water branch line; 12: a water replenishing pump; 13: a pressure gauge; 14: a cooling water pressure control valve; 15: a steam pressure control valve; 16: a boiler level control valve; 17: a liquid level sensor; 18: a boiler level gauge; 19: a camera; 20: an on-line PH meter.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides an evaporation steam condensate recycling system, including exhaust-heat boiler device, moisturizing device and evaporation steam utilization equipment 1.
The waste heat boiler arrangement comprises at least one waste heat boiler 2. Wherein the number of the waste heat boilers 2 can be one or more according to the use requirement. In the present embodiment, the waste heat boiler arrangement comprises three waste heat boilers 2.
The water supplementing device comprises a condensate heat exchanger 3 and a water supplementing tank 4.
A condensate inlet of the condensate heat exchanger 3 is connected with a condensate outlet of the evaporation steam utilization device 1, and a condensate outlet of the condensate heat exchanger 3 is connected with a water supplementing inlet of the water supplementing tank 4.
The water replenishing inlet of each waste heat boiler 2 is respectively connected with the water replenishing outlet of the water replenishing tank 4, and the steam outlet of each waste heat boiler 2 is respectively connected with the steam inlet of the evaporation steam utilization equipment 1.
In this embodiment, the heat that evaporation steam utilized equipment 1 utilized evaporation steam comes the work, the heat of evaporation steam is absorbed the back and is converted into evaporation steam condensate, then evaporation steam utilizes equipment 1 to carry evaporation steam condensate to further cooling processing in condensate heat exchanger 3, evaporation steam condensate after the cooling is carried to moisturizing jar 4 and is stored, moisturizing jar 4 carries evaporation steam condensate to each exhaust-heat boiler 2 again, thereby provide the moisturizing for each exhaust-heat boiler 2, each exhaust-heat boiler 2 carries out the heating process to evaporation steam condensate again, then carry the evaporation steam who produces to evaporation steam utilizes equipment 1 again, thereby provide the heat source for the work of evaporation steam utilized equipment 1.
That is, this embodiment evaporation steam condensate circulation recycling system, can realize the cyclic utilization to evaporation steam condensate, and then improved evaporation steam condensate's rate of recovery, moreover because exhaust-heat boiler adopts evaporation steam condensate as the moisturizing to ensure that exhaust-heat boiler recovery quality of water is up to standard, avoid exhaust-heat boiler directly to adopt the pure water and the corrosion problem that causes, ensured exhaust-heat boiler's life.
The evaporation steam condensate recycling system can be used in the production process of producing alkali by the ion membrane method, and can reduce the production cost of ion membrane caustic soda.
Further, a condensate outlet of the condensate heat exchanger 3 is connected with a water supplementing inlet of the water supplementing tank 4 through a condensate conveying pipeline 5, and a condensate water supplementing valve 6 is arranged on the condensate conveying pipeline 5. By arranging the condensate water supplementing valve 6, the on-off control of the condensate conveying pipeline 5 can be controlled by the flow of the evaporation steam condensate in the condensate conveying pipeline 5.
Further, the device also comprises a pure water conveying pipeline 7, wherein the pure water conveying pipeline 7 is connected with a water supplementing inlet of the water supplementing tank 4, and a pure water supplementing valve 8 is arranged on the pure water conveying pipeline 7. Wherein, the pure water replenishing valve 8 can realize the on-off control of the pure water conveying pipeline 7 and the flow control of the pure water in the pure water conveying pipeline 7.
This embodiment can adopt the pure water as the moisturizing through setting up pure water conveying pipeline 7 under the not enough condition of system operation initial stage and system evaporation steam condensate to for exhaust-heat boiler 2 provides the moisturizing, guarantee the even running of system.
That is, when the system is in the initial operation stage, when evaporation steam utilizes equipment 1 not yet to produce evaporation steam condensate, perhaps when evaporation steam condensate that evaporation steam utilized equipment 1 produced can't satisfy exhaust-heat boiler 2's demand, can be through pure water conveying pipeline 7 to carry pure water in moisturizing jar 4 this moment, and then satisfy exhaust-heat boiler 2's operation demand. When the system can run at full load, only the steam condensate is required to be evaporated to be used as the water supplement of the waste heat boiler 2.
Further, an on-line PH meter 20 is provided at a water replenishing inlet of the water replenishing tank 4, and is configured to detect a PH value of the replenishing water flowing into the water replenishing tank 4 in real time.
Further, a water supplement outlet of the water supplement tank 4 is connected to a water supplement output main pipeline 9, and the water supplement output main pipeline 9 is connected to the exhaust-heat boiler branch pipeline 10 and the cooling water branch pipeline 11, respectively. The water-replenishing inlet of each waste heat boiler 2 is connected with a branch pipeline 10 of the waste heat boiler. And the cooling water branch line 11 is connected to the cooling water facility.
That is, the evaporative steam condensate output from the make-up water tank 4 may be divided into two parts, one of which is used to supply make-up water to each heat recovery steam generator 2 and the other of which is used to supply cooling water to the cooling water equipment.
Specifically, the main water replenishing output pipe 9 is connected to a plurality of water replenishing pumps 12 arranged in parallel. The number of the water replenishing pumps 12 can be set according to actual use requirements. In this embodiment, two water replenishing pumps 12 connected in parallel are connected to the main water replenishing output pipeline 9.
Specifically, the cooling water branch line 11 is provided with a pressure gauge 13 and a cooling water pressure control valve 14. The pressure of the water in the cooling water branch line 11 can be detected by the pressure gauge 13. The cooling water pressure control valve 14 can control the water pressure in the cooling water branch line 11.
Specifically, a steam pressure control valve 15 is provided at each steam outlet of the exhaust heat boilers 2. The steam pressure output by each waste heat boiler 2 can be controlled by the steam pressure control valve 15.
Specifically, a boiler level control valve 16 is provided at each of the water supply inlets of the exhaust heat boilers 2. The water replenishing flow input by each waste heat boiler 2 can be controlled through the boiler liquid level control valve 16, and further the control of the liquid level in the waste heat boiler 2 is realized.
Further, each exhaust-heat boiler 2 is provided with a liquid level sensor 17, each liquid level sensor 17 is connected with a controller, and the controller is connected with each boiler liquid level control valve 16.
That is, detect the liquid level data among exhaust-heat boiler 2 through level sensor 17 to with the real-time or regularly conveying of liquid level data to the controller, the controller goes regulation control boiler liquid level control valve 16 according to the liquid level data, thereby guarantees that exhaust-heat boiler 2's liquid level can satisfy the user demand.
Further, each exhaust-heat boiler 2 is provided with a boiler liquid level meter 18, a camera 19 is provided right in front of each boiler liquid level meter 18, and each camera 19 is correspondingly mounted on each exhaust-heat boiler 2 through a mounting bracket.
In order to prevent that level sensor 17 from detecting the condition that the false liquid level appears, can come to detect waste heat boiler 2's liquid level through boiler level gauge 18, then 19 acquisition boiler level gauges 18 image information of rethread camera, camera 19 can be with the image information real-time or regularly conveying of acquireing to the liquid level condition of waste heat boiler 2 is known more comprehensively to the staff.
Wherein, can link to each camera 19 with digital video recorder respectively, not only can carry out long-time storage to the liquid level information of camera 19 conveying through digital video recorder, but also can show liquid level information through digital video recorder, and the staff of being convenient for looks over.
To sum up, the embodiment of the utility model provides an evaporation steam condensate circulation recycling system, realized the cyclic utilization to evaporation steam condensate, improved evaporation steam condensate's rate of recovery, ensure moreover that waste heat boiler recovery quality of water is up to standard, ensured waste heat boiler's life, reduced the manufacturing cost of ionic membrane caustic soda.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, unless otherwise specified, "a plurality" means one or more; "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the present invention.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides an evaporation steam condensate circulation recycling system which characterized in that: the system comprises a waste heat boiler device, a water supplementing device and evaporation steam utilization equipment, wherein the waste heat boiler device comprises at least one waste heat boiler, and the water supplementing device comprises a condensate heat exchanger and a water supplementing tank; a condensate inlet of the condensate heat exchanger is connected with a condensate outlet of the evaporation steam utilization equipment, and a condensate outlet of the condensate heat exchanger is connected with a water supplementing inlet of the water supplementing tank; and the water replenishing inlet of each waste heat boiler is respectively connected with the water replenishing outlet of the water replenishing tank, and the steam outlet of each waste heat boiler is respectively connected with the steam inlet of the evaporation steam utilization equipment.
2. The evaporative vapor condensate recycling system of claim 1, wherein: a condensate outlet of the condensate heat exchanger is connected with a water supplementing inlet of the water supplementing tank through a condensate conveying pipeline, and a condensate water supplementing valve is arranged on the condensate conveying pipeline; the water replenishing tank is characterized by further comprising a pure water conveying pipeline, the pure water conveying pipeline is connected with a water replenishing inlet of the water replenishing tank, and a pure water replenishing valve is arranged on the pure water conveying pipeline.
3. The evaporative vapor condensate recycling system of claim 1, wherein: an on-line pH meter is arranged at the water replenishing inlet of the water replenishing tank.
4. The evaporative vapor condensate recycling system of claim 1, wherein: a water replenishing outlet of the water replenishing tank is connected with a water replenishing output main pipeline, and the water replenishing output main pipeline is respectively connected with a waste heat boiler branch pipeline and a cooling water branch pipeline; the water replenishing inlet of each waste heat boiler is respectively connected with the branch pipelines of the waste heat boilers; the cooling water branch pipeline is connected with the cooling water equipment.
5. The evaporative vapor condensate recycling system of claim 4, wherein: and the water supplementing output main pipeline is connected with a plurality of water supplementing pumps which are arranged in parallel.
6. The evaporative vapor condensate recycling system of claim 4, wherein: and the cooling water branch pipeline is respectively provided with a pressure gauge and a cooling water pressure control valve.
7. The evaporative vapor condensate recycling system of claim 1, wherein: and a steam pressure control valve is respectively arranged at the steam outlet of each waste heat boiler.
8. The evaporative vapor condensate recycling system of claim 1, wherein: and boiler liquid level control valves are respectively arranged at the water replenishing inlet of each waste heat boiler.
9. The evaporative vapor condensate recycling system of claim 8, wherein: and each waste heat boiler is respectively provided with a liquid level sensor, each liquid level sensor is respectively connected with a controller, and the controller is respectively connected with each boiler liquid level control valve.
10. The evaporative vapor condensate recycling system of claim 1, wherein: each waste heat boiler is respectively provided with a boiler liquid level meter, a camera is respectively arranged right in front of each boiler liquid level meter, and each camera is correspondingly arranged on each waste heat boiler through a mounting bracket; and each camera is respectively connected with the hard disk video recorder.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921681626.8U CN211069060U (en) | 2019-10-09 | 2019-10-09 | Circulation recycling system for evaporative steam condensate |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921681626.8U CN211069060U (en) | 2019-10-09 | 2019-10-09 | Circulation recycling system for evaporative steam condensate |
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| CN211069060U true CN211069060U (en) | 2020-07-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935138A (en) * | 2022-05-23 | 2022-08-23 | 昆明理工大学 | System for utilize exhaust steam waste heat to produce regenerated steam |
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2019
- 2019-10-09 CN CN201921681626.8U patent/CN211069060U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935138A (en) * | 2022-05-23 | 2022-08-23 | 昆明理工大学 | System for utilize exhaust steam waste heat to produce regenerated steam |
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