CN111442321A - Multifunctional heat exchanger unit and adjusting method thereof - Google Patents
Multifunctional heat exchanger unit and adjusting method thereof Download PDFInfo
- Publication number
- CN111442321A CN111442321A CN202010334917.0A CN202010334917A CN111442321A CN 111442321 A CN111442321 A CN 111442321A CN 202010334917 A CN202010334917 A CN 202010334917A CN 111442321 A CN111442321 A CN 111442321A
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- valve
- pipe
- shut
- water return
- return pipe
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- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 147
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000001502 supplementing effect Effects 0.000 abstract 2
- 238000010438 heat treatment Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000008400 supply water Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011217 control strategy Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/10—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system
- F24D3/1058—Feed-line arrangements, e.g. providing for heat-accumulator tanks, expansion tanks ; Hydraulic components of a central heating system disposition of pipes and pipe connections
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
Abstract
The invention provides a multifunctional heat exchanger unit and an adjusting method thereof, wherein the multifunctional heat exchanger unit comprises a control module, a heat exchanger, a first water supply pipe, a first water return pipe, a second water supply pipe and a second water return pipe which are connected with the heat exchanger; the one-network water supply pipe is communicated with the one-network water return pipe through a branch pipe I provided with a shut-off valve I; the first-network water return pipe is communicated with the second-network water return pipe through a second branch pipe provided with a second shut-off valve; the two-network water supply pipe is communicated with the two-network water return pipe through a branch pipe III provided with a shut-off valve III; the first-network water return pipe is connected with a first water supplementing pipe, and the first water supplementing pipe is communicated with the second-network water return pipe through a fourth branch pipe provided with a fourth shut-off valve. The invention uses a set of units, can meet heat sources with different qualities through valve and pipeline changes, avoids the need of additionally arranging equipment or modifying engineering when the heat source changes, reduces equipment investment and station floor area, can automatically adjust operation temperature and pressure, is convenient for operation and maintenance management, saves energy consumption and improves heat supply efficiency.
Description
Technical Field
The invention relates to the technical field of heat supply, in particular to a multifunctional heat exchanger unit and an adjusting method thereof.
Background
Along with the development of urban construction and science and technology, central heating trade heat source form is more and more various, develops high-temperature water by steam, and the place has also begun to utilize low-temperature circulating water low-quality heat source in addition, and the mode of heat exchanger unit also develops water heat exchanger unit by steam heat exchanger unit, develops water mixing unit by indirect heat exchanger unit.
In the prior art, a distributed system composed of a heat exchanger, a circulating pump, a water replenishing tank, a control cabinet and the like is usually adopted for indirect water supply, or integral heat exchange unit equipment composed of the heat exchanger, the circulating pump, the water replenishing pump, a frequency converter, a valve, an instrument, the control cabinet and the like is adopted, the distributed system needs to be purchased independently and is distributed in a station in a dispersed manner, so that the defects of high purchasing cost, high installation coordination difficulty, large occupied area and the like exist, although the integral heat exchange unit equipment is installed in a complete set, the occupied area is small, the purchasing is simple, but the equipment type selection is large, and; direct water supply usually adopts the sprayer or sets up the muddy water pump in the middle of supplying the return water pipeline, because the operating mode change of adaptation pipe network pressure that can not be fine, and then leads to the heating effect poor, and the energy consumption is high.
Disclosure of Invention
In order to solve the problems that in the prior art, heating equipment on the market only corresponds to a heat source in one form, once the quality of the heat source is changed, the heating equipment is not satisfied any more, the whole heating equipment needs to be transformed or replaced, the existing equipment has the problems of high energy consumption, large equipment and the like, and a heating unit capable of realizing multiple heating modes needs to be provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a multifunctional heat exchange unit comprises a control module, a heat exchanger, a first water supply pipe, a first water return pipe, a second water supply pipe and a second water return pipe, wherein the first water supply pipe, the second water supply pipe and the second water return pipe are connected with the heat exchanger;
the one-network water supply pipe is communicated with the one-network water return pipe through a branch pipe I provided with a shut-off valve I;
the first-network water return pipe is communicated with the second-network water return pipe through a second branch pipe provided with a second shut-off valve;
the two-network water supply pipe is communicated with the two-network water return pipe through a branch pipe III provided with a shut-off valve III;
the first water return pipe is connected with a first water replenishing pipeline, and the first water replenishing pipeline is communicated with the second water return pipe through a fourth branch pipe provided with a fourth shut-off valve.
An adjusting method based on the multifunctional heat exchanger unit comprises the following steps:
selecting a working mode according to the quality of a heat source, wherein a high-quality heat source adopts an 'indirect heat exchange' or 'indirect water mixing' mode, and a low-quality heat source adopts a 'direct water mixing' mode;
and comparing the temperature value and the pressure value of the acquisition pipeline with a preset value, calculating and automatically adjusting.
Further, in the indirect heat exchange mode, a first shut-off valve, a second shut-off valve, a third shut-off valve and a fourth shut-off valve need to be closed, and the first water supply pipe, the first water return pipe, the second water supply pipe and the second water return pipe are all opened;
under the intermittent water mixing mode, a third shutoff valve needs to be opened, a first shutoff valve, a second shutoff valve and a fourth shutoff valve need to be closed, and the first water supply pipe, the first water return pipe, the second water supply pipe and the second water return pipe are all opened;
in the direct water mixing mode, the first shut-off valve, the second shut-off valve, the third shut-off valve and the fourth shut-off valve need to be opened, the first water supply pipe, the first water return pipe, the second water supply pipe and the second water return pipe are all opened, and the first water supply pipe, the second water supply pipe and the heat exchanger are not communicated.
The invention uses a set of units, can meet heat sources with different qualities through valve and pipeline changes, avoids the need of additionally arranging equipment or modifying engineering when the heat source changes, reduces equipment investment and station floor area, can automatically adjust operation temperature and pressure, is convenient for operation and maintenance management, saves energy consumption and improves heat supply efficiency.
Drawings
FIG. 1 is a schematic view of the integrated piping connection of the present invention;
FIG. 2 is a schematic flow chart of the steps of the present invention.
In the figure: 1. a heat exchanger; 2. a net water supply pipe; 3. a network water return pipe; 4. a two-network water supply pipe; 5. a two-network water return pipe; 6. closing the first valve; 7. closing the valve II; 8. closing the valve III; 9. a first water replenishing pipeline; 10. and closing the valve IV.
Detailed Description
A preferred embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
The multifunctional heat exchanger unit shown in fig. 1 comprises a control module, a heat exchanger 1, and a first water supply pipe 2, a first water return pipe 3, a second water supply pipe 4 and a second water return pipe 5 which are connected with the heat exchanger; the one-network water supply pipe is communicated with the one-network water return pipe through a branch pipe I provided with a shut-off valve I6; the first-network water return pipe is communicated with the second-network water return pipe through a second branch pipe provided with a second shut-off valve 7; the two-network water supply pipe is communicated with the two-network water return pipe through a branch pipe III provided with a shut-off valve III 8; the first water return pipe is connected with a first water replenishing pipeline 9, and the first water replenishing pipeline is communicated with the second water return pipe through a fourth branch pipe provided with a fourth shut-off valve 10.
The one-network water supply pipe 1 in the preferred embodiment is provided with a shut-off valve five, a one-network dirt separator, a one-network water supply ultrasonic flowmeter and a shut-off valve six along the water supply direction; the first net water return pipe 2 is provided with a first water supply pipeline, a temperature control valve, a first net water return ultrasonic flow meter and a seventh shut-off valve along the water return direction; the two-network water supply pipe 3 is provided with a two-network water supply ultrasonic heat meter and a shut-off valve eight along the water supply direction; and a shut-off valve nine, a two-network dirt separator, a pressure release valve, a water replenishing pipeline two, a circulating water pump and a shut-off valve ten are arranged on the two-network water return pipe 4 along the water return direction. The temperature control valve adopts an electric regulating valve and is provided with a bypass, so that the constant temperature control effect is achieved; and the one-network water supply pipe, the one-network water return pipe, the two-network water supply pipe and the two-network water return pipe are respectively provided with a temperature sensor and a pressure transmitter for monitoring. The system can automatically adjust the temperature and the pressure of the unit operation according to the temperature value and the pressure value which are acquired in real time, so that the normal operation and the heat supply efficiency of the unit can be ensured by adjusting the opening or closing of the circulating water pump, the water replenishing pump and the pressure relief valve and the opening degree of the temperature control valve.
In specific use, for high-quality heat sources, the flow demand is less, and a mode of ' supplying heat and exchanging heat or ' supplying mixed water ' can be adopted, so that when a low-quality heat source is used, the flow demand is increased, and the flow utilization rate can be improved by adopting a direct-supply mixed water mode.
Specifically, if the intermittent heat exchange mode is adopted for operation, a fifth shut-off valve, a sixth shut-off valve, a seventh shut-off valve, an eighth shut-off valve, a ninth shut-off valve, a tenth shut-off valve are required to be opened, a first shut-off valve 6, a second shut-off valve 7, a third shut-off valve 8 and a fourth shut-off valve 10 are required to be closed, and the function of the intermittent heat exchange type unit is realized; if the intermittent water mixing mode is adopted for operation, a third shut-off valve, a fifth shut-off valve, a sixth shut-off valve, a seventh shut-off valve, an eighth shut-off valve, a ninth shut-off valve and a tenth shut-off valve are required to be opened, and a first shut-off valve, a second shut-off valve and a fourth shut-off valve are required to be closed, so that the functions of the intermittent water mixing unit are realized; if the direct-supply water mixing mode is adopted for operation, the first shut-off valve, the second shut-off valve, the third shut-off valve, the fourth shut-off valve, the fifth shut-off valve, the seventh shut-off valve, the eighth shut-off valve, the ninth shut-off valve, the sixth shut-off valve and the tenth shut-off valve need to be opened, and the functions of the direct-supply water mixing unit are realized. The invention uses one set of units, can simultaneously meet the heat supply of multiple heat source working conditions through the change of the valve and the pipeline, avoids the need of additionally arranging equipment or reconstructing projects when the working conditions of the heat source change, thus reducing the equipment investment and the floor area of a station room, facilitating the operation and maintenance management, and simultaneously improving the energy-saving effect of the equipment through an efficient control strategy.
The adjusting method based on the multifunctional heat exchanger unit shown in fig. 2 comprises the following steps:
s1, selecting a working mode according to the quality of the heat source, wherein the high-quality heat source adopts an 'indirect heat exchange' or 'indirect water mixing' mode, and the low-quality heat source adopts a 'direct water mixing' mode;
and S2, comparing the temperature value and the pressure value of the acquisition pipeline with a preset value, calculating and automatically adjusting.
In the preferred embodiment, the control module may set a target pressure value and a pressure variation range value of the two-network water return pipeline, subtract the variation range value from the target pressure value to obtain a pressure low limit value of the two-network water return pipeline, and add the variation range value to the target pressure value to obtain a pressure high limit value of the two-network water return pipeline.
In a specific use, the specific method of automatic adjustment is as follows:
the control module compares the acquired actual pressure values of the two-network water supply and return pipelines with a target pressure difference value for calculation, gradually increases the rotating speed of the circulating pump if the actual pressure difference value is smaller than the target pressure difference value, gradually decreases the rotating speed of the circulating pump if the actual pressure difference value is larger than the target pressure difference value, and keeps the rotating speed of the circulating pump unchanged if the actual pressure difference value is equal to the target pressure difference value;
the control module compares the acquired actual pressure value of the two-network water return pipeline with the high and low pressure limit values of the two-network water return pipeline, if the actual pressure value is smaller than the low pressure limit value of the two-network water return pipeline, the water replenishing pump is started and operates at a set rotating speed, and if the actual pressure value is larger than the high pressure limit value of the two-network water return pipeline, the water replenishing pump is closed;
the control module compares the acquired actual temperature value of the two-network water supply pipeline with a set temperature value for calculation, gradually increases the opening of the temperature control valve if the actual temperature is less than a temperature target value, gradually decreases the opening of the temperature control valve if the actual temperature is greater than the temperature target value, and keeps the opening of the temperature control valve unchanged if the actual temperature is equal to the temperature target value;
the control module compares the acquired two-network backwater actual pressure value with the overpressure protection value, if the actual pressure value is larger than the overpressure protection value, the pressure release valve is opened to release pressure, and when the pressure is reduced to be smaller than the stop value, the pressure release valve is closed to stop the pressure release.
The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (3)
1. A multifunctional heat exchange unit is characterized by comprising a control module, a heat exchanger (1), a one-network water supply pipe (2), a one-network water return pipe (3), a two-network water supply pipe (4) and a two-network water return pipe (5) which are connected with the heat exchanger;
the one-network water supply pipe is communicated with the one-network water return pipe through a branch pipe I provided with a shut-off valve I (6);
the first-network water return pipe is communicated with the second-network water return pipe through a second branch pipe provided with a second shut-off valve (7);
the two-network water supply pipe is communicated with the two-network water return pipe through a branch pipe III provided with a shut-off valve III (8);
the first-network water return pipe is connected with a first water replenishing pipeline (9), and the first water replenishing pipeline is communicated with the second-network water return pipe through a fourth branch pipe provided with a fourth shut-off valve (10).
2. The adjusting method of the multifunctional heat exchanger unit based on the claim 1 is characterized by comprising the following steps:
selecting a working mode according to the quality of a heat source, wherein a high-quality heat source adopts an 'indirect heat exchange' or 'indirect water mixing' mode, and a low-quality heat source adopts a 'direct water mixing' mode;
and comparing the temperature value and the pressure value of the acquisition pipeline with a preset value, calculating and automatically adjusting.
3. The adjusting method of the multifunctional heat exchanger unit as claimed in claim 2, wherein:
under the indirect heat exchange mode, closing a first closing valve, a second closing valve, a third closing valve and a fourth closing valve, and opening the first water supply pipe, the first water return pipe, the second water supply pipe and the second water return pipe;
under the intermittent water mixing mode, a third shutoff valve needs to be opened, a first shutoff valve, a second shutoff valve and a fourth shutoff valve need to be closed, and the first water supply pipe, the first water return pipe, the second water supply pipe and the second water return pipe are all opened;
in the direct water mixing mode, the first shut-off valve, the second shut-off valve, the third shut-off valve and the fourth shut-off valve need to be opened, the first water supply pipe, the first water return pipe, the second water supply pipe and the second water return pipe are all opened, and the first water supply pipe, the second water supply pipe and the heat exchanger are not communicated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334917.0A CN111442321A (en) | 2020-04-24 | 2020-04-24 | Multifunctional heat exchanger unit and adjusting method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010334917.0A CN111442321A (en) | 2020-04-24 | 2020-04-24 | Multifunctional heat exchanger unit and adjusting method thereof |
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| Publication Number | Publication Date |
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| CN111442321A true CN111442321A (en) | 2020-07-24 |
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| CN202010334917.0A Pending CN111442321A (en) | 2020-04-24 | 2020-04-24 | Multifunctional heat exchanger unit and adjusting method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587684A (en) * | 2021-06-18 | 2021-11-02 | 洛阳双瑞精铸钛业有限公司 | Heat exchange system with intelligent safety control function |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945134A (en) * | 2006-08-24 | 2007-04-11 | 汕头市联美投资(集团)有限公司 | Double control system for central heat supply |
| CN101315205A (en) * | 2008-07-29 | 2008-12-03 | 青岛暖易通节能科技有限公司 | Direct connection intelligent water mixing device |
| CN201221805Y (en) * | 2008-06-12 | 2009-04-15 | 北京中科飞腾节能技术有限公司 | Heat supplying system |
| CN203704104U (en) * | 2014-01-10 | 2014-07-09 | 北京新城国泰能源科技有限公司 | Water mixing heat supply device used in heat exchange station |
| CN104848307A (en) * | 2014-10-23 | 2015-08-19 | 青岛万力科技有限公司 | Heat exchange and direct connection mutual-use heating system |
| CN104848294A (en) * | 2014-10-26 | 2015-08-19 | 青岛万力科技有限公司 | High-temperature-water heat exchange low-temperature-water direct connection heating system |
| CN104864445A (en) * | 2014-11-26 | 2015-08-26 | 青岛同创节能环保工程有限公司 | Intelligent heating system of heat exchange station |
| JP2018091527A (en) * | 2016-11-30 | 2018-06-14 | パーパス株式会社 | Hot water supply system and cogeneration system |
| CN110594834A (en) * | 2019-10-08 | 2019-12-20 | 瑞纳智能设备股份有限公司 | Secondary side energy mixing heat exchange unit |
| CN212057452U (en) * | 2020-04-24 | 2020-12-01 | 瑞纳智能设备股份有限公司 | Multifunctional heat exchanger unit |
-
2020
- 2020-04-24 CN CN202010334917.0A patent/CN111442321A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1945134A (en) * | 2006-08-24 | 2007-04-11 | 汕头市联美投资(集团)有限公司 | Double control system for central heat supply |
| CN201221805Y (en) * | 2008-06-12 | 2009-04-15 | 北京中科飞腾节能技术有限公司 | Heat supplying system |
| CN101315205A (en) * | 2008-07-29 | 2008-12-03 | 青岛暖易通节能科技有限公司 | Direct connection intelligent water mixing device |
| CN203704104U (en) * | 2014-01-10 | 2014-07-09 | 北京新城国泰能源科技有限公司 | Water mixing heat supply device used in heat exchange station |
| CN104848307A (en) * | 2014-10-23 | 2015-08-19 | 青岛万力科技有限公司 | Heat exchange and direct connection mutual-use heating system |
| CN104848294A (en) * | 2014-10-26 | 2015-08-19 | 青岛万力科技有限公司 | High-temperature-water heat exchange low-temperature-water direct connection heating system |
| CN104864445A (en) * | 2014-11-26 | 2015-08-26 | 青岛同创节能环保工程有限公司 | Intelligent heating system of heat exchange station |
| JP2018091527A (en) * | 2016-11-30 | 2018-06-14 | パーパス株式会社 | Hot water supply system and cogeneration system |
| CN110594834A (en) * | 2019-10-08 | 2019-12-20 | 瑞纳智能设备股份有限公司 | Secondary side energy mixing heat exchange unit |
| CN212057452U (en) * | 2020-04-24 | 2020-12-01 | 瑞纳智能设备股份有限公司 | Multifunctional heat exchanger unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113587684A (en) * | 2021-06-18 | 2021-11-02 | 洛阳双瑞精铸钛业有限公司 | Heat exchange system with intelligent safety control function |
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