CN220083795U - Device for carrying out secondary utilization and recovery on heat energy of steam condensate - Google Patents
Device for carrying out secondary utilization and recovery on heat energy of steam condensate Download PDFInfo
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- CN220083795U CN220083795U CN202321613094.0U CN202321613094U CN220083795U CN 220083795 U CN220083795 U CN 220083795U CN 202321613094 U CN202321613094 U CN 202321613094U CN 220083795 U CN220083795 U CN 220083795U
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- 238000011084 recovery Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 68
- 238000012544 monitoring process Methods 0.000 claims abstract description 14
- 230000001502 supplementing effect Effects 0.000 claims abstract description 12
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 6
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 30
- 239000000463 material Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 238000004064 recycling Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 239000010963 304 stainless steel Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Abstract
A device for carrying out secondary utilization and recovery on heat energy of steam condensate belongs to the technical field of energy utilization. The system consists of a steam condensate buffer tank, a steam condensate heat exchange pump, a steam condensate air cooler, a steam condensate heat exchanger, a steam condensate storage tank and a steam condensate delivery pump which are sequentially connected through pipelines; an upstream steam condensate collecting pipeline, a water supplementing pipeline, a steam supplementing pipeline and a monitoring instrument are arranged on the steam condensate buffer tank, the output end of the steam condensate air cooler is connected with the steam condensate buffer tank through a pipeline, a water quality monitoring instrument is arranged on the pipeline of the output end of the steam condensate conveying pump, and a recovery pipeline and a discharge pipeline which are connected in parallel are arranged behind the water quality monitoring instrument. The steam high-quality condensate water recovery and energy secondary utilization system provided by the utility model is simple to operate and remarkable in effect, and can be widely applied to the stations for steam condensate water and heat energy utilization in various enterprises and the pretreatment of steam high-quality condensate water recovery.
Description
Technical Field
The utility model belongs to the technical field of energy utilization, and particularly relates to a device for reutilizing and recycling heat energy of steam condensate.
Background
The water resource shortage condition is more prominent due to the great waste of water resources, and the recovery treatment and secondary utilization of water resources are imperative. In various using modes of water resources, steam is used as superior heat energy of power fluid, is used as one of the most important heating media of modern chemical enterprises, and is commonly used for heating, humidifying, generating power to drive a unit to operate and the like. At present, the heat energy of the steam is changed into a steam condensate state after being utilized, and a large number of enterprises directly discharge the steam condensate in a treatment mode, so that a large amount of water resources are wasted, and a large amount of heat energy contained in the steam condensate is wasted. Therefore, the recovery and effective and full utilization of the high-quality condensed water of the steam are an effective method for relieving the waste of water-steam resources.
Disclosure of Invention
In order to realize the effective recycling of the high-quality steam condensate and a large amount of heat energy contained in the condensate, the utility model provides a device for recycling the heat energy of the steam condensate, which has the advantages of simple structure, effective use and remarkable effect.
The utility model discloses a device for reutilizing and recycling heat energy of steam condensate water, which is a continuous operation device. As shown in fig. 1, the system consists of a steam condensate buffer tank 1, a steam condensate heat exchange pump 4, a steam condensate air cooler 6, a steam condensate heat exchanger 7, a steam condensate storage tank 8 and a steam condensate delivery pump 9 which are sequentially connected by pipelines; an upstream steam condensate collecting pipeline, a water supplementing pipeline 2, a steam supplementing pipeline 3 and a monitoring instrument (comprising temperature, liquid level and pressure) 14 are arranged on the steam condensate buffer tank 1; a regulating valve is arranged on a pipeline between the steam condensate water air cooler 6 and the steam condensate water heat exchanger 7; the output end of the steam condensate water air cooler 6 is connected with the steam condensate water buffer tank 1 through a pipeline, and an adjusting valve is arranged on the pipeline; a water quality monitoring instrument 10 is arranged on an output end pipeline of the steam condensate water delivery pump 9, a recovery pipeline 12 and a discharge pipeline 11 which are connected in parallel are arranged behind the water quality monitoring instrument 10, and a recovery self-control valve group 15 and a discharge self-control valve group 16 are respectively arranged on the recovery pipeline 12 and the discharge pipeline 11.
The steam condensate enters the steam condensate buffer tank 1 along a collecting pipeline for collection (the process can not only collect the steam condensate, but also relieve pressure impact and flow fluctuation in a steam condensate water pipeline system by utilizing the gas pressure in the buffer tank), the steam condensate enters the steam condensate air cooler 6 after the steam condensate is subjected to heat energy utilization through the steam condensate heat exchange pump 4 connected to the bottom of the steam condensate buffer tank 1 and is conveyed to a device or system 5 needing to utilize the heat energy of the steam condensate, the temperature of the steam condensate is reduced to 40-60 ℃, wherein a part of the steam condensate enters the steam condensate buffer tank 1 after the opening degree is controlled by a regulating valve, the flow is regulated, and the steam condensate is used for controlling the temperature (110-120 ℃) of the steam condensate in the steam condensate buffer tank 1 and maintaining the pressure (0.05-0.10 MPa) of the steam condensate to be stable; the residual condensate water enters a steam condensate water heat exchanger 7, exchanges heat with circulating water, further reduces the temperature to 25-35 ℃, and then enters a steam condensate water storage tank 8 for collection; the steam condensate storage tank 8 is a normal pressure tank, a vent pipe 13 is arranged on the top of the steam condensate storage tank to realize the communication between the pressure in the steam condensate storage tank and the atmosphere, an outlet of the vent pipe 13 is bent downwards, so that impurities such as dust, rainwater and the like are prevented from polluting the steam condensate collected in the steam condensate storage tank 8, a filter screen is further arranged in the vent pipe 13 to prevent small bird sparks and flying insects from entering the steam condensate storage tank 8 to pollute spoiled water quality (the filter screen is made of stainless steel, and the mesh specification is 20 holes/square inch); the steam condensate in the steam condensate storage tank 8 is conveyed by a steam condensate conveying pump 9, and the conveying paths are two: when the water quality detected by the water quality monitoring instrument 10 meets the recovery standard, the steam condensate is conveyed back to the whole plant steam condensate recovery device through a recovery pipeline 12 (a recovery self-control valve group 15 is arranged on the recovery pipeline 12 and can be switched on and off according to the water quality monitoring result), so that the reutilization of water resources is realized; when the detection result does not meet the recovery standard (the upstream steam collecting pipeline, the water supplementing pipeline 2 and the steam supplementing pipeline 3 are made of carbon steel, rust slag possibly can be generated to influence the quality of condensate water), the steam condensate water is conveyed to a production sewage well for discharging through a discharge pipeline 11 (a discharge self-control valve group 16 is arranged on the discharge pipeline 11 and can be switched on and off according to the water quality monitoring result), and pollution of high-quality condensate water is avoided.
When the upstream device does not use steam to generate high-temperature steam condensate according to production and operation requirements, the water supplementing pipeline 2 can be used for filling the steam condensate buffer tank 1 with hot water (the temperature range is about 25-35 ℃), the steam supplementing pipeline 3 is used for filling the steam condensate buffer tank 1 with steam (1.0 MPa low-pressure steam, the temperature range is 180-185 ℃), the hot water and the steam are mixed to obtain steam condensate, the steam condensate buffer tank 1 is used for pressure buffering and collecting, and then the steam condensate is provided for a device or a system 5 which needs heat exchange at the downstream through the steam condensate heat exchange pump 4 connected to the bottom of the steam condensate buffer tank 1.
In order to ensure the quality of the recovered condensate water and avoid the interference of pipeline conveying impurities, the pipelines of the whole set of steam condensate water, the secondary utilization of heat energy and the conveying recovery process are all made of stainless steel.
The utility model relates to a device for reutilizing and recycling heat energy of high-quality condensed water of steam, which has the advantages that the whole process cycle and the inside of a system have no chemical change, the steam condensed water generated by an upstream device is fully recycled and the heat energy contained in the steam condensed water is reutilized, the operation method is simple, an automatic control system can be designed according to the working condition of a site, the refined control is realized, the problem of water-steam resource waste can be well relieved, and the aims of energy conservation, consumption reduction, cost reduction and efficiency enhancement are realized for enterprises. The steam high-quality condensate water recovery and energy secondary utilization system provided by the utility model is simple to operate and remarkable in effect, and can be widely applied to the stations for steam condensate water and heat energy utilization in various enterprises and the pretreatment of steam high-quality condensate water recovery.
Drawings
Fig. 1: a schematic structural diagram of a device for reutilizing and recycling heat energy of steam condensate;
the names of the parts are as follows: the device comprises a steam condensate buffer tank 1, a water supplementing pipeline 2, a steam supplementing pipeline 3, a steam condensate heat exchange pump 4, a device 5 needing heat exchange, a steam condensate air cooler 6, a steam condensate heat exchanger 7, a steam condensate storage tank 8, a steam condensate conveying pump 9, a water quality monitoring instrument 10, a discharge pipeline 11, a recovery pipeline 12, a vent pipe 13, a monitoring instrument (comprising temperature, liquid level and pressure) 14, a recovery self-control valve group 15 and a discharge self-control valve group 16.
Detailed Description
Further description will be given below by way of specific examples, but the present utility model is not limited to the materials used in the examples, but is also applicable to other systems requiring temperature protection.
Example 1:
in this embodiment, the benzene material storage tank in winter is used as a device (i.e. the device 5 in fig. 1 for heat exchange) for providing temperature protection. The solidifying point of the benzene material is 5.5 ℃, if the benzene material can not provide stable temperature guarantee in winter in the north, the benzene material can be subjected to low temperature influence to generate congealing phenomenon, and the transportation and the stability of downstream production devices are seriously influenced.
In this embodiment, 8 benzene material storage tanks are built, which are all normal pressure storage tanks, phi 20×H18m, and the design volume is 5000m 3 Carbon steel. The lower part of each benzene material storage tank is provided with a steam condensate heat exchange coil pipe which is used for conveying steam condensate collected by the steam condensate buffer tank 1 to the heat exchange coil pipe of each benzene material storage tank through the steam condensate heat exchange pump 4 to heat the benzene material so as to ensure the storage temperature.
When the temperature is low in winter, the steam condensate water after the steam heat exchange of other devices is conveyed into the steam condensate water buffer tank 1 through the pipe, the steam condensate water in the buffer tank is conveyed into the steam condensate water heat exchange coil pipe at the lower part of each benzene material storage tank through the steam condensate water heat exchange pump 4, the temperature of the benzene material storage tank can be controlled to be about 22 ℃ more stably in the process, the abundant heat energy of the steam condensate water is fully utilized, and a large amount of energy consumption of the steam tracing of the traditional storage tank is reduced.
The steam condensate after heat exchange enters a steam condensate storage tank 8 for storage after passing through a steam condensate air cooler 6 and a steam condensate heat exchanger 7, so as to ensure the quality of the steam condensate in the process of collection and storage.
The steam condensate collected by the steam condensate storage tank 8 is monitored, the conductivity of the steam condensate is about 1.7 mu s/cm, the steam condensate meets the recovery index, and the steam condensate is sent to a whole plant steam condensate recovery device through the steam condensate delivery pump 9.
The steam condensate buffer tank 1 is characterized in that a medium is steam condensate, the medium is a vertical elliptical end socket container, and the nominal volume is 40m 3 The dimension is phi 2800mm 5600mm, the operating pressure is 0.6MPa, the operating temperature is 20 ℃, the design pressure is 0.78MPa, and the design temperature is 55 ℃. And 304 stainless steel is adopted.
The steam condensate heat exchange pump 4 is characterized in that a medium is steam condensate, the medium is in a horizontal centrifugal pump, the lift is 45m, the power of a motor is 11kW, and n=2950 rpm.
The steam condensate water air cooler 6 is of an air supply type, the medium is steam condensate water, the operation temperature of the condensate water side is 165/60 ℃, the operation pressure is 0.8MPa, the design temperature is 200 ℃, and the design pressure is 1.6MPa; the design temperature of the air side was 32℃in summer and 13℃in winter.
The steam condensate heat exchanger 7 is a plate heat exchanger with a heat exchange area of 27.65m 2 The medium is steam condensate water/circulating water; the operating temperature of the hot side is 60-40 ℃, the operating temperature of the cold side is 32-42 ℃, the operating pressure of the hot side is 0.45MPa, and the operating pressure of the cold side is 0.6MPa.
A steam condensate storage tank 8, the medium is steam condensate, the type is a small storage tank with a fixed top, and the nominal volume is V=150m 3 The size is phi 5500mm 6500mm, the operating temperature is 40 ℃, the design temperature is 60 ℃, and 304 stainless steel is adopted.
The steam condensate conveying pump 9 is in a form of a horizontal centrifugal pump, the lift is 65m, the power of a motor is 15kW, and n=2950 rpm.
Claims (4)
1. The utility model provides a device that carries out reutilization and retrieve steam condensate heat energy which characterized in that: is a continuous operation device, which consists of a steam condensate buffer tank (1), a steam condensate heat exchange pump (4), a steam condensate air cooler (6), a steam condensate heat exchanger (7), a steam condensate storage tank (8) and a steam condensate delivery pump (9) which are sequentially connected by pipelines; an upstream steam condensate collecting pipeline, a water supplementing pipeline (2), a steam supplementing pipeline (3) and a monitoring instrument (14) are arranged on the steam condensate buffer tank (1), and the output end of the steam condensate air cooler (6) is connected with the steam condensate buffer tank (1) through a pipeline; a water quality monitoring instrument (10) is arranged on an output end pipeline of the steam condensate water delivery pump (9), and a recovery pipeline (12) and a discharge pipeline (11) which are connected in parallel are arranged behind the water quality monitoring instrument (10).
2. A device for reutilizing and recovering heat energy of steam condensate as claimed in claim 1, wherein: the steam condensate water storage tank (8) is a normal pressure tank, the tank top is provided with a vent pipe (13), and the outlet of the vent pipe (13) is bent downwards; a filter screen is further arranged in the vent pipe (13), the filter screen is made of stainless steel, and the mesh specification is 20 holes per square inch.
3. A device for reutilizing and recovering heat energy of steam condensate as claimed in claim 1, wherein: the recovery pipeline (12) and the discharge pipeline (11) are respectively provided with a recovery self-control valve group (15) and a discharge self-control valve group (16).
4. A device for reutilizing and recovering heat energy of steam condensate as claimed in claim 1, wherein: the steam condensate water air cooler (6) is an air supply type air cooler, the steam condensate water heat exchanger (7) is a plate type heat exchanger, and the steam condensate water delivery pump (9) is a horizontal centrifugal pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613094.0U CN220083795U (en) | 2023-06-25 | 2023-06-25 | Device for carrying out secondary utilization and recovery on heat energy of steam condensate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321613094.0U CN220083795U (en) | 2023-06-25 | 2023-06-25 | Device for carrying out secondary utilization and recovery on heat energy of steam condensate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220083795U true CN220083795U (en) | 2023-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321613094.0U Active CN220083795U (en) | 2023-06-25 | 2023-06-25 | Device for carrying out secondary utilization and recovery on heat energy of steam condensate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220083795U (en) |
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2023
- 2023-06-25 CN CN202321613094.0U patent/CN220083795U/en active Active
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