CN220153346U - Steam condensate waste heat recycling system - Google Patents
Steam condensate waste heat recycling system Download PDFInfo
- Publication number
- CN220153346U CN220153346U CN202321367426.1U CN202321367426U CN220153346U CN 220153346 U CN220153346 U CN 220153346U CN 202321367426 U CN202321367426 U CN 202321367426U CN 220153346 U CN220153346 U CN 220153346U
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- China
- Prior art keywords
- condensate
- steam
- waste heat
- steam condensate
- heat exchanger
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- 239000002918 waste heat Substances 0.000 title claims abstract description 28
- 238000004064 recycling Methods 0.000 title claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000011084 recovery Methods 0.000 claims abstract description 17
- DUAQZVXGEHUXOH-UHFFFAOYSA-N N.[Ca] Chemical compound N.[Ca] DUAQZVXGEHUXOH-UHFFFAOYSA-N 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002699 waste material Substances 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 11
- 150000001768 cations Chemical class 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000011033 desalting Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 229910002651 NO3 Inorganic materials 0.000 description 1
- 241000221535 Pucciniales Species 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 210000005056 cell body Anatomy 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010612 desalination reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- -1 nitrate ions Chemical class 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Abstract
The utility model relates to the technical field of recycling systems, in particular to a steam condensate waste heat recycling system; the utility model discloses a steam condensate waste heat recycling system, which comprises a heat exchanger connected to a steam condensate pipe, wherein the heat exchanger is connected to a condensing device, the condensing device is connected to a water tank, the water tank is connected to a desalted water device, and the desalted water device is connected to a boiler; the system for recycling the waste heat of the steam condensate can enable the steam condensate to be recycled smoothly, the recovery rate of the condensate reaches more than 95%, the waste of the condensate is reduced, the high-tower wastewater treatment cost is reduced, the full utilization of the system heat energy is realized, the energy consumption of a production enterprise is reduced, and the maximum energy-saving and emission-reducing effects are achieved.
Description
Technical Field
The utility model relates to the technical field of recycling systems, in particular to a steam condensate waste heat recycling system.
Background
Steam is the most commonly used heating medium for heating, distilling, rectifying, drying and the like in the chemical process. The heat of steam mainly consists of sensible heat and latent heat, the heat of steam mainly utilizes the latent heat, and the latent heat accounts for about 95% of the total heat. The phase of the substance changes during the release of the latent heat, and the phase of the substance does not change during the release of the sensible heat, mainly the temperature changes. When the steam is heated, the steam is gradually condensed into a liquid state, a large amount of latent heat is instantaneously released through phase change, heat exchange is carried out through a heat exchange surface, and condensed water after condensation is discharged through a steam trap.
After the steam heats, distills, rectifies and dries equipment, the temperature of the tail gas is reduced, partial condensate water is generated, the steam cannot be directly discharged into the air to cause air pollution, and the steam tail gas is directly connected to a water tank in the production process at present, the steam tail gas directly washes the water tank, the tank body of the water tank is easy to rust, and the condensate water is high in conductivity. The steam tail gas is cooled by circulating water, and the circulating water returns to a water treatment workshop for cooling treatment, so that energy waste is caused.
The heat energy of the system refers to the heat generated by the system in the operation process, and is generally regarded as waste heat, and the waste heat needs to be discharged through a heat dissipation device to ensure the normal operation of the system. However, the waste heat of these steam systems is actually a valuable energy source, and if it can be effectively collected and utilized, the reuse of the system heat energy can be achieved, thereby improving the energy efficiency and economic efficiency of the system.
Therefore, the utility model provides a steam condensate waste heat recycling system.
Disclosure of Invention
In order to solve the technical problems, the utility model provides the steam condensate waste heat recycling system, so that the steam condensate is smoothly recycled, the recovery rate of the condensate reaches more than 95%, the full utilization of system heat energy can be realized, the energy consumption of a production enterprise is reduced, and the maximum energy-saving and emission-reducing effects are achieved.
The technical scheme adopted for solving the technical problems is as follows:
the steam condensate waste heat recycling system comprises a heat exchanger connected to a steam condensate pipe, wherein the heat exchanger is connected to a condensing device, the condensing device is connected to a water tank, the water tank is connected to a desalted water device, and the desalted water device is connected to a boiler.
Preferably, the steam condensate pipe is provided with a stop valve and a check valve.
Preferably, the condensing device is used for condensing the heat-exchanged steam.
Preferably, a wet wire trench and a rainwater pipe network are arranged below the liquid outlet of the condensing device.
Preferably, the condensing means comprises a first condenser and a second condenser connected in series, the first condenser being connected to the heat exchanger and the second condenser being connected to the water tank.
Preferably, the heat exchanger is a jacket heat exchanger and is used for carrying out heat exchange and cooling on steam discharged from the steam condensate pipe.
Preferably, the discharge port of the heat exchanger is connected to a hot water tank.
More preferably, the heat exchanger is provided as a plurality of heat exchangers connected in series.
Preferably, the desalinating water device comprises a filter.
Preferably, the steam condensate pipe comprises a steam condensate pipe from a high tower and a steam condensate pipe of an ammonia-calcium workshop.
The beneficial effects of the utility model are as follows:
1. by optimizing and reforming the condensate system of the whole plant, the steam condensate is smoothly recovered, and the recovery rate of the condensate reaches more than 95 percent.
2. By improving the recovery rate of condensate, the waste of condensate is reduced, the cyclic utilization of water resources is realized, the water consumption and pollution of a system are reduced, and the high-tower wastewater treatment cost is reduced
3. The heat energy of steam generated by the system can be effectively recovered, and the energy utilization rate and economic benefit of the system are improved.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a schematic diagram of a vapor condensate waste heat recovery system according to the present utility model;
FIG. 2 is a schematic diagram of a condensing device of the vapor condensate waste heat recovery system according to the present utility model;
FIG. 3 is a schematic diagram of a medium heat exchanger of the vapor condensate waste heat recovery system of the present utility model;
FIG. 4 is a schematic structural view of a neutral-desalination water device of the vapor condensate waste heat recovery system of the present utility model;
in the figure: 1. a heat exchanger; 2. a condensing device; 3. a water tank; 4. a desalted water device; 5. a boiler; 6. wet line trench; 7. a rainwater pipe network; 21. a first condenser; 22. a second condenser; 41. a high capacity filter; 42. an exquisite yang bed; 43. an exquisite mixed bed; 81. a stop valve; 82. a check valve; 83. a flow meter.
Detailed Description
The utility model will be further illustrated by the following examples, which are not intended to limit the scope of the utility model, in order to facilitate the understanding of those skilled in the art.
As used herein, "and/or" includes any and all combinations of one or more of the associated listed items. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
As shown in fig. 1-4, a steam condensate waste heat recovery system comprises a heat exchanger 1 connected to a steam condensate pipe, the heat exchanger 1 is connected to a condensing device 2, the condensing device 2 is connected to a water tank 3, the water tank 3 is connected to a desalted water device 4, and the desalted water device 4 is connected to a boiler 5.
In one embodiment, a shut-off valve 81 and a check valve 82 are provided on the vapor condensate line.
Specifically, the steam condensate pipe comprises a steam condensate pipe of a high tower and a steam condensate pipe of an ammonia-calcium workshop, a stop valve 81 and a check valve 82 are arranged on a pipeline of the steam condensate pipe of the high tower connected to the heat exchanger 1, and a stop valve 81 and a check valve 82 are arranged on a pipeline of the steam condensate pipe of the ammonia-calcium workshop connected to the heat exchanger 1.
In one embodiment, the condensing device 2 is used for condensing heat exchanged steam.
The condensing device 2 comprises a first condenser 21 and a second condenser 22 connected in series, the first condenser 21 being connected to the heat exchanger 1 and the second condenser 22 being connected to the water tank 3.
Specifically, the steam tail gas passes through the heat exchanger 1, exchanges heat and cools, and then passes through the first condenser 21 and the second condenser 22 to be condensed to form condensate, and the condensate is collected into the water inlet tank 3; through the use of heat exchanger 1 and condensing equipment 2, solved conventional steam tail gas and erodeed water tank 3, the cell body of water tank 3 rusts easily, causes the problem that leads to the condensate conductivity to be high, also improves the condensate rate of recovery through two-stage condensation simultaneously.
In one embodiment, a wet wire trench 6 and a rainwater pipe network 7 are arranged below the liquid outlet of the condensing device 2.
Specifically, if overflow or leakage occurs near the liquid outlet of the condensing device 2, the condensate can be discharged to the wet wire trench 6 and the rainwater pipe network 7 below.
In one embodiment, the heat exchanger 1 is a jacket heat exchanger 1 for heat exchanging and cooling the steam discharged from the steam condensate pipe.
In one embodiment, a discharge port of the heat exchanger is connected to a hot water tank, and after circulating water in the heat exchanger exchanges heat with steam, the temperature is increased; after the heat exchange is finished, hot water is discharged to the hot water tank from the discharge port of the heat exchanger, and the hot water can be used for heating other devices.
Specifically, a plurality of (3-4) heat exchangers 1 can be used for series connection, so that heat exchange is effectively performed, the temperature of steam tail gas is effectively reduced, and condensation is facilitated.
In one embodiment, a flow meter 83 is provided on the line of the tank 3 connected to the desalinating water device 4 for monitoring the flow of condensate output in the tank 3. The desalted water device 4 can adopt the existing equipment to realize the desalting treatment of condensate.
Specifically, the desalter 4 may be realized by the following structure:
the desalted water apparatus includes a large-capacity filter 41, a fine cation bed 42 connected to the large-capacity filter 41, a fine mixed bed 43 connected to the fine cation bed 42, and the fine mixed bed 43 is connected to a boiler. After the water tank is connected with the high-capacity filter, condensate sequentially flows through the high-capacity filter, the exquisite cationic bed and the exquisite mixed bed; the high-capacity filter can remove impurities such as rust and the like in the condensate; the delicate cation bed can remove metal cations such as calcium ions, magnesium ions, sodium ions and the like, and the delicate mixed bed can remove anions such as nitrate ions, sulfate ions, chloride ions and the like.
In particular, when a steam condensate waste heat recycling system is used, a stop valve and a check valve are opened, steam tail gas (about 120-130 ℃) of a high tower and an ammonia-calcium workshop is led into a plurality of heat exchangers to be subjected to heat exchange treatment, and at the moment, the temperature of the steam tail gas is reduced to form partial condensate and the rest steam tail gas (80-90 ℃); condensing the residual steam tail gas through a two-stage condenser to form condensate; introducing the condensate into a water tank; and (3) introducing the condensate in the water tank into a desalted water device for desalting, and introducing the desalted condensate into a boiler for recycling or other purposes after desalting.
The above embodiments are preferred embodiments of the present utility model, and besides, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.
Claims (10)
1. A steam condensate waste heat recovery and utilization system, characterized by comprising a heat exchanger (1) connected to a steam condensate pipe, the heat exchanger (1) being connected to a condensing device (2), the condensing device (2) being connected to a water tank (3), the water tank (3) being connected to a desalinating water device (4), the desalinating water device (4) being connected to a boiler (5).
2. The system for recovering and utilizing the waste heat of the steam condensate as claimed in claim 1, wherein a stop valve (81) and a check valve (82) are arranged on the steam condensate pipe.
3. A steam condensate waste heat recovery and utilization system as claimed in claim 1, wherein the condensing means (2) is arranged to condense heat exchanged steam.
4. The system for recycling waste heat of steam condensate according to claim 1, wherein a wet wire trench (6) and a rainwater pipe network (7) are arranged below the liquid outlet of the condensing device (2).
5. A vapour condensate waste heat recovery and utilization system according to claim 1, wherein the condensing means (2) comprises a first condenser (21) and a second condenser (22) connected in series, the first condenser (21) being connected to the heat exchanger (1) and the second condenser (22) being connected to the water tank (3).
6. The system for recycling waste heat of steam condensate according to claim 1, wherein the heat exchanger (1) is a jacket heat exchanger (1) for heat exchanging and cooling steam discharged from the steam condensate pipe.
7. A steam condensate waste heat recovery and utilization system according to claim 1, characterized in that the drain of the heat exchanger (1) is connected to a hot water tank.
8. A steam condensate waste heat recovery and utilization system according to any one of claims 6-7, wherein the heat exchanger (1) is arranged as a plurality of heat exchangers (1) connected in series.
9. A vapour condensate waste heat recovery and utilization system according to claim 1, wherein the desalinated water means (4) comprises a filter.
10. The vapor condensate waste heat recovery and utilization system of claim 1, wherein the vapor condensate line comprises a vapor condensate line from a high tower, a vapor condensate line from an ammonia-calcium plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321367426.1U CN220153346U (en) | 2023-05-31 | 2023-05-31 | Steam condensate waste heat recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321367426.1U CN220153346U (en) | 2023-05-31 | 2023-05-31 | Steam condensate waste heat recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220153346U true CN220153346U (en) | 2023-12-08 |
Family
ID=89010586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321367426.1U Active CN220153346U (en) | 2023-05-31 | 2023-05-31 | Steam condensate waste heat recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220153346U (en) |
-
2023
- 2023-05-31 CN CN202321367426.1U patent/CN220153346U/en active Active
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