CN220541798U - Low-pressure exhaust steam and condensed water heat energy efficient utilization system - Google Patents
Low-pressure exhaust steam and condensed water heat energy efficient utilization system Download PDFInfo
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- CN220541798U CN220541798U CN202322216532.6U CN202322216532U CN220541798U CN 220541798 U CN220541798 U CN 220541798U CN 202322216532 U CN202322216532 U CN 202322216532U CN 220541798 U CN220541798 U CN 220541798U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 93
- 239000000498 cooling water Substances 0.000 claims description 18
- 238000007599 discharging Methods 0.000 claims description 13
- 238000001816 cooling Methods 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims 1
- 239000002699 waste material Substances 0.000 description 8
- 230000002209 hydrophobic effect Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical group O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a low-pressure exhaust steam and condensed water heat energy efficient utilization system, which comprises an input pipeline for inputting high-temperature condensed water, wherein the output end of the input pipeline is provided with a flash evaporator for separating water from the input high-temperature condensed water, the right side of the flash evaporator is provided with a heat exchange system for utilizing the heat energy of the high-temperature condensed water, the heat exchange system comprises a first heat exchanger for utilizing the low-pressure condensed water discharged by the flash evaporator, a second heat exchanger for utilizing flash steam and noncondensable steam discharged by the flash evaporator is arranged above the first heat exchanger, and the right side of the second heat exchanger is provided with a water tank matched with the first heat exchanger and the second heat exchanger. The utility model solves the problem of lower heat energy utilization efficiency of the traditional condensed water heat energy utilization system in the prior art. The utility model has the advantages of simple structure, convenient use, high heat utilization rate and the like.
Description
Technical Field
The utility model relates to a high-temperature condensate water recycling system, in particular to a low-pressure exhaust steam and condensate water heat energy efficient utilization system.
Background
At present, the China patent network discloses a waste steam and hot water heat energy recovery system, publication No. CN208410485U, which comprises: the water-vapor separator is connected with the steam discharge pipe; the waste steam and condensed water collecting device is connected with a first steam outlet at the top of the water-steam separator; the first hot water pump is connected with a first condensate outlet at the bottom of the water-steam separator, and is connected with the waste steam and condensate collecting device; the condensed water tank is connected with the first hot water pump, and a second condensed water outlet of the condensed water tank is connected with the steam discharge pipe; the condensed water tank is connected with a third condensed water outlet at the bottom of the waste steam and condensed water collecting device, and a second steam outlet at the top of the waste steam and condensed water collecting device is connected with the first steam conveying pipe. Through the mode, the waste steam and hot water heat energy recovery system disclosed by the utility model can recover waste steam and condensed water discharged by the foam molding machine, can obviously reduce steam consumption and can improve the working environment.
The heat exchanger and the condensed water discharged from the sealed steam direct heating container in the patent contain a large amount of non-condensable gas, pollutants and available heat energy, and the direct discharge can cause environmental pollution and energy waste, and the condensed water needs to be treated and discharged after cooling. The non-condensable gas is mixed with the condensed water and the flash steam, so that the heat exchange coefficient is small, and the heat exchange efficiency is affected, so that the heat energy utilization rate of the condensed water is low. The condensed water is in a state of vapor-water mixture in the pipeline, and cavitation damage is caused by directly using a water pump to convey the water pump. Is not suitable for long-distance conveying and heat exchange.
Disclosure of Invention
The utility model aims to solve the problem of low heat energy utilization efficiency of the traditional condensed water heat energy utilization system in the prior art, and provides a low-pressure exhaust steam and condensed water heat energy efficient utilization system with the advantage of high heat energy utilization rate.
The utility model discloses a low-pressure exhaust steam and condensed water heat energy efficient utilization system, which comprises an input pipeline for inputting high-temperature condensed water, wherein the output end of the input pipeline is provided with a flash evaporator for separating water from the input high-temperature condensed water, the right side of the flash evaporator is provided with a heat exchange system for utilizing the heat energy of the high-temperature condensed water, the heat exchange system comprises a first heat exchanger for utilizing the low-pressure condensed water discharged by the flash evaporator, a second heat exchanger for utilizing flash steam and non-condensed gas discharged by the flash evaporator is arranged above the first heat exchanger, and the right side of the second heat exchanger is provided with a water tank matched with the first heat exchanger and the second heat exchanger.
Preferably, the right side output end of the input pipeline is connected with the left side input end of the flash evaporator through a flange, the upper end of the flash evaporator is provided with a discharge port for discharging generated flash steam and non-condensed steam, the lower end of the flash evaporator is provided with a drain port for discharging generated low-pressure condensed water, the left side input end of the first heat exchanger is connected with the drain port of the flash evaporator through a drain pipeline, and the left side input end of the second heat exchanger is connected with the discharge port of the flash steam through a steam pipeline.
Preferably, the cooling water input end of the lower end of the first heat exchanger is connected with the cooling water output end of the left end of the water tank through a cooling pipeline and a hydraulic pump, the cooling water output end of the upper end of the first heat exchanger is connected with the cooling water input end of the lower end of the second heat exchanger through a conveying pipeline, and the cooling water output end of the upper end of the second heat exchanger is connected with the cooling water return end of the upper end of the water tank through a return pipeline.
Preferably, the right side of the first heat exchanger is provided with a drain main pipe for collecting and discharging condensed water after heat exchange, the output end of the right end of the first heat exchanger and the output end of the lower end of the second heat exchanger are respectively connected with the input end of the drain main pipe through a set pipeline and a flange, and the upper end of the second heat exchanger is provided with a steam outlet for discharging non-condensable gas after heat exchange.
The condensed water is firstly subjected to flash evaporation before entering the heat exchanger, and water and steam are separated. The hot water is concentrated in the lower part of the flash evaporator and the vapor is concentrated in the upper part of the flash evaporator. When the amount of condensed water is small, the pipeline can be enlarged, and the pipeline is used as a flash evaporator. The first heat exchanger is a water-water heat exchanger, is arranged at a low position and is lower than a water outlet at the lower part of the flash evaporator. The hot water at the lower part of the flash evaporator naturally flows into the first heat exchanger under the action of gravity and is discharged through the outlet of the first heat exchanger. The second heat exchanger is a water vapor heat exchanger and is arranged at a high position, and the installation height is higher than the steam outlet at the upper part of the flash evaporator. Flash steam and noncondensable gas are discharged from a steam outlet at the upper part of the flash evaporator and enter a second heat exchanger. Condensing the steam into water after heat exchange, and discharging the water from the drainage system. The non-condensable gas is not condensed into water after being cooled, has small density and is discharged from a steam outlet at the upper part of the second heat exchanger. Avoiding the influence of the concentration of non-condensable gas in the heat exchanger on the heat exchange efficiency. In addition, after the flash steam and the hot water are separated, the flash steam and the hot water enter different heat exchangers, and the heat exchange efficiency is greatly improved. The water in the water tank is pumped into the first heat exchanger to exchange heat, enters the second heat exchanger from the upper outlet after exchanging heat by the first heat exchanger, and then returns to the water tank to supply hot water for use in the process. After two-stage heat exchange, the hot water keeps higher temperature. The condensed water is subjected to full heat exchange, the temperature is greatly reduced, and the condensed water is discharged into a sewage main pipe, so that the heat energy is utilized, and meanwhile, the high-temperature condensed water flash steam is prevented from being discharged in an unorganized manner.
The utility model has the following beneficial effects: simple structure, convenient to use, heat utilization rate is high.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
The device comprises an input pipeline 1, a flash evaporator 2, a first heat exchanger 3, a second heat exchanger 4, a water tank 5 and a sewage main pipe 6.
Detailed Description
The technical scheme of the utility model is further specifically described through embodiments and with reference to the accompanying drawings.
Examples: according to the utility model, as further described in the accompanying figure 1, the low-pressure exhaust steam and condensed water heat energy efficient utilization system of the embodiment comprises an input pipeline 1 for inputting high-temperature condensed water, wherein a flash evaporator 2 for separating water from the input high-temperature condensed water is arranged at the output end of the input pipeline 1, a heat exchange system for utilizing the heat energy of the high-temperature condensed water is arranged on the right side of the flash evaporator 2, the heat exchange system comprises a first heat exchanger 3 for utilizing the low-pressure condensed water discharged by the flash evaporator 2, a second heat exchanger 4 for utilizing flash steam and noncondensable steam discharged by the flash evaporator 2 is arranged above the first heat exchanger 3, and a water tank 5 matched with the first heat exchanger 3 and the second heat exchanger 4 is arranged on the right side of the second heat exchanger 4.
The right side output of input pipeline 1 be connected through setting up the flange with the left side input of flash vessel 2, flash vessel 2 upper end be equipped with the discharge port that is used for discharging flash steam and the noncondensable gas that produce, flash vessel 2 lower extreme be equipped with the hydrophobic mouth that is used for discharging the low pressure comdenstion water that produces, the left side input of heat exchanger No. 3 be connected through setting up the hydrophobic pipeline with the hydrophobic mouth of flash vessel 2, the left side input of heat exchanger No. 4 be connected through setting up the steam pipeline with the discharge port of flash steam between.
The cooling water input end of the lower end of the first heat exchanger 3 is connected with the cooling water output end of the left end of the water tank 5 through a cooling pipeline and a hydraulic pump, the cooling water output end of the upper end of the first heat exchanger 3 is connected with the cooling water input end of the lower end of the second heat exchanger 4 through a conveying pipeline, and the cooling water output end of the upper end of the second heat exchanger 4 is connected with the cooling water return end of the upper end of the water tank 5 through a return pipeline.
The right side of the first heat exchanger 3 is provided with a drain header pipe 6 for collecting and discharging condensed water after heat exchange, the output end of the right end of the first heat exchanger 3 and the output end of the lower end of the second heat exchanger 4 are respectively connected with the input end of the drain header pipe 6 through a set pipeline and a flange, and the upper end of the second heat exchanger 4 is provided with a steam outlet for discharging non-condensable gas after heat exchange.
The above embodiments are merely examples of the present utility model, but the present utility model is not limited thereto, and any changes or modifications made by those skilled in the art are included in the scope of the present utility model.
Claims (4)
1. The utility model provides a low pressure exhaust steam and comdenstion water heat energy high efficiency utilization system, includes input pipeline (1) that is used for inputing high temperature comdenstion water, characterized by, the output of input pipeline (1) be equipped with flash vessel (2) that are used for carrying out water vapor separation to the high temperature comdenstion water of input, the right side of flash vessel (2) be equipped with the heat transfer system who is used for utilizing high temperature comdenstion water heat energy, heat transfer system including being used for utilizing flash vessel (2) exhaust low pressure comdenstion water first heat exchanger (3), first heat exchanger (3) top be equipped with be used for utilizing flash vessel (2) exhaust flash steam and noncondensable steam second heat exchanger (4), second heat exchanger (4) right side be equipped with first heat exchanger (3) and second heat exchanger (4) cooperation water tank (5).
2. The high-efficiency low-pressure exhaust steam and condensed water heat energy utilization system according to claim 1 is characterized in that the right side output end of the input pipeline (1) is connected with the left side input end of the flash evaporator (2) through a setting flange, the upper end of the flash evaporator (2) is provided with a discharge port for discharging generated flash steam and noncondensable steam, the lower end of the flash evaporator (2) is provided with a drain port for discharging generated low-pressure condensed water, the left side input end of the first heat exchanger (3) is connected with the drain port of the flash evaporator (2) through a setting drain pipeline, and the left side input end of the second heat exchanger (4) is connected with the discharge port of the flash steam through a setting steam pipeline.
3. The low-pressure exhaust steam and condensed water heat energy efficient utilization system according to claim 1 is characterized in that a cooling water input end of the lower end of the first heat exchanger (3) is connected with a cooling water output end of the left end of the water tank (5) through a cooling pipeline and a hydraulic pump, a cooling water output end of the upper end of the first heat exchanger (3) is connected with a cooling water input end of the lower end of the second heat exchanger (4) through a conveying pipeline, and a cooling water output end of the upper end of the second heat exchanger (4) is connected with a cooling water backflow end of the upper end of the water tank (5) through a backflow pipeline.
4. The low-pressure exhaust steam and condensed water heat energy efficient utilization system according to claim 1 is characterized in that a drain header pipe (6) for collecting and discharging condensed water subjected to heat exchange is arranged on the right side of the first heat exchanger (3), an output end of the right end of the first heat exchanger (3) and an output end of the lower end of the second heat exchanger (4) are connected with an input end of the drain header pipe (6) through a set pipeline and a flange respectively, and a steam outlet for discharging noncondensable steam after heat exchange is formed in the upper end of the second heat exchanger (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322216532.6U CN220541798U (en) | 2023-08-17 | 2023-08-17 | Low-pressure exhaust steam and condensed water heat energy efficient utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322216532.6U CN220541798U (en) | 2023-08-17 | 2023-08-17 | Low-pressure exhaust steam and condensed water heat energy efficient utilization system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220541798U true CN220541798U (en) | 2024-02-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322216532.6U Active CN220541798U (en) | 2023-08-17 | 2023-08-17 | Low-pressure exhaust steam and condensed water heat energy efficient utilization system |
Country Status (1)
| Country | Link |
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| CN (1) | CN220541798U (en) |
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2023
- 2023-08-17 CN CN202322216532.6U patent/CN220541798U/en active Active
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