CN104848313A - Variable-frequency heating heat exchange unit of circulating pump - Google Patents
Variable-frequency heating heat exchange unit of circulating pump Download PDFInfo
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- CN104848313A CN104848313A CN201410570182.6A CN201410570182A CN104848313A CN 104848313 A CN104848313 A CN 104848313A CN 201410570182 A CN201410570182 A CN 201410570182A CN 104848313 A CN104848313 A CN 104848313A
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- circulating pump
- pipe
- water
- temperature
- heat exchanger
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
Abstract
The invention discloses a variable-frequency heating heat exchange unit of a circulating pump. the unit mainly consists of a heat exchanger, a circulating pump, a flow detecting device, a temperature sensor and a control cabinet, wherein the flow detecting device, a pressure sensor 2 and the temperature sensor are mounted on a secondary water supply pipe for connecting with outlet water of a secondary side of the heat exchanger; a frequency converter, a controller, a weather compensator and a touch screen are integrated in the control cabinet; the frequency converter and the weather compensator are respectively connected with the controller in the control cabinet; and the controller and the weather compensator are connected with the touch screen. The unit has the following beneficial effects: the variable-frequency speed adjusting control is performed for the circulating pump according to the secondary circulating flow change, so that the electricity can be saved by 10-30%; and the unit has a weather compensation adjusting function, is excellent in heating effect, full-automatic and intelligent in control, direct in liquid crystal display and complete in protective function, and can be widely suitable for such concentrated heating places as houses, offices, factories and mines, hospitals, hotels and schools.
Description
Technical field
The present invention relates to technical field of heat exchange, specifically a kind of circulating pump frequency conversion heating heat-exchange unit.
Background technology
Along with the fast development of Urbanization Construction, central heating day, heat-exchange unit had the advantages such as energy-conservation, joint money, environmental protection, is the main force of current central heating by generally.But the circulating pump great majority in the heat-exchange unit of prior art adopt power frequency constant-speed operation, easily causes the energy dissipation problem of the little temperature difference of large discharge, be unfavorable for energy efficiency promotion.
Summary of the invention
The object of the present invention is to provide a kind of energy-conservation, comfortable and circulating pump frequency conversion that result of use is good heating heat-exchange unit.
The technical solution adopted for the present invention to solve the technical problems is: circulating pump frequency conversion heating heat-exchange unit is primarily of heat exchanger, circulating pump, flow detector, temperature sensor and switch board composition, the primary side of heat exchanger is connected with a feed pipe and primary water pipe respectively, the secondary side water inlet of heat exchanger is connected after circulating pump by secondary returning water pipe, the secondary side water outlet of heat exchanger is connected with secondary water-supply pipe, a feed pipe is provided with temperature-sensing valve, filter one is housed before temperature-sensing valve, one time feed pipe was also provided with Pressure gauge one and thermometer one before connection heat exchanger, primary water pipe is equiped with Pressure gauge two and thermometer two, circulating pump water inlet is responsible for backwater and is connected, backwater supervisor be connected with secondary returning water pipe, secondary returning water pipe is provided with filter two, backwater supervisor is equipped with safety valve, and be provided with pressure sensor one and thermometer three, backwater supervisor be also connected with filling pipe, filling pipe is equiped with moisturizing variable frequency pump, filling pipe and moisturizing variable frequency pump are used for carrying out frequency-changing pressure stabilizing moisturizing to backwater supervisor, circulating pump water outlet is connected with main forcing pipe, main forcing pipe is connected with the import of heat exchanger secondary side, main forcing pipe is provided with Pressure gauge three, walk around circulating pump and be provided with bypass pipe between backwater supervisor and main forcing pipe, the secondary water-supply pipe being connected water outlet with heat exchanger secondary side is equiped with flow detector, pressure sensor two and temperature sensor.
Described temperature-sensing valve, moisturizing variable frequency pump, pressure sensor one, circulating pump, flow detector, pressure sensor two and temperature sensor separately cabling line are connected with switch board respectively, switch board also applies cable and is connected with outdoor temperature sensor, and outdoor temperature sensor is installed in outdoor and for climate temperature situation of change outside sensing chamber; Described circulating pump is 2 ~ 4 and is arranged in parallel.
Integratedly in described switch board be equiped with frequency converter, controller, climate compensator and touch-screen, and frequency converter and climate compensator are connected with controller respectively in switch board, controller and climate compensator are connected with touch-screen again, described frequency converter is used for controlled circulation pump frequency converting speed regulating and runs, controller is used for circulating pump start and stop, switch, excessive low water level protection, secondary water-supply pressure regulates, and moisturizing variable frequency pump is to secondary backwater constant pressure adjust, climate compensator is used for the water outlet heating-up temperature according to outdoor climate variations in temperature speed governing secondary water-supply pipe adaptively, and regulate temperature-sensing valve aperture to regulate a feed pipe flow accordingly, touch-screen is for showing all kinds of parameters with monitoring, comprise backwater main pipe pressure, secondary water-supply pipe pressure and temperature, secondary cycle flow, temperature-sensing valve aperture, circulating pump and moisturizing variable frequency pump operational factor.The backwater main pipe pressure that described pressure sensor one connects for detecting secondary returning water pipe; Described pressure sensor two is for detecting secondary water-supply pipe pressure; Described temperature sensor is for detecting the water outlet heating-up temperature (i.e. secondary water-supply pipe temperature) of secondary water-supply pipe; Described flow detector is for detecting secondary cycle flow.
Operation principle of the present invention is, the heat that primary side feed pipe is carried by heat exchanger, the secondary hot water being converted to secondary side heat supply user demand automatically and continuously exports, the secondary backwater of heat supply user is taken out stains by filter two by secondary returning water pipe, be delivered to heat exchanger after circulating pump pressurization to heat, and produce user's heat demand and the heating water that is suitable for outdoor climate variations in temperature heats, climate compensator in switch board adjusts the water outlet heating-up temperature of secondary water-supply pipe adaptively according to climate temperature situation of change outside outdoor temperature sensor sensing chamber, when outdoor climate temperature height, water outlet heating-up temperature is relatively low, when outdoor climate temperature is low, water outlet heating-up temperature wants high relatively, according to the temperature sensor of secondary water-supply pipe, climate compensator detects that water outlet heating-up temperature compares with the setting leaving water temperature being suitable for outdoor climate variations in temperature after, the aperture of automatic adjustment temperature-sensing valve is to regulate the flow of a feed pipe, when temperature sensor detects that water outlet heating-up temperature is higher than when being suitable for the setting leaving water temperature of outdoor climate variations in temperature, temperature-sensing valve turns down the flow of a feed pipe, until close, when temperature sensor detects that water outlet heating-up temperature is lower than when being suitable for the setting leaving water temperature of outdoor climate variations in temperature, the flow of a large feed pipe left by temperature-sensing valve, until standard-sized sheet, thus realize the energy-conservation of alternating temperature heat supply, comfortable effect, simultaneously, the secondary water-supply pipe pressure that the secondary cycle flow that circulating pump detects according to flow detector is corresponding different, implement variable quantity and pressure by frequency converter relative to pressure sensor two to control, secondary cycle flow and secondary water-supply pipe pressure are secondary parabolic curve relation, secondary cycle flow is large, and then secondary water-supply pipe pressure is high, secondary cycle flow little then secondary water-supply pipe pressure is low, thus reach the effect of saving power consumption, the secondary parabolic curve of secondary cycle flow and secondary water-supply pipe pressure is more close to the characteristic curve of secondary cycle pipeline, its power savings is more obvious, during pump operating cycle, when pressure sensor one detects backwater main pipe pressure lower than backwater setup pressure value, moisturizing variable frequency pump starts and implements constant pressure making up water to keep its constant pressure to backwater supervisor, when backwater main pipe pressure is stabilized in backwater setup pressure value and maintains 30s ~ 60s, moisturizing variable frequency pump will be stopped to run, and moisturizing variable frequency pump is shut down, when backwater main pipe pressure being detected lower than another setup pressure value, system will judge backwater supervisor and secondary returning water pipe lack of water, circulating pump stoppage protection is also reported to the police, and when backwater main pipe pressure returns to backwater setup pressure value, circulating pump automatically starts and recovers normal operation.
The invention has the beneficial effects as follows; the present invention carries out variable frequency regulating speed control according to secondary cycle changes in flow rate to circulating pump; 10% ~ 30% can be economized on electricity; and there is weather compensation regulatory function; its heating effect is good, and full-automatic intelligent controls, and liquid crystal display is directly perceived; defencive function is complete, extensively can be suitable for the central heating occasion of house, office, factories and miness, hospital, hotel, school etc.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1, a feed pipe, 2, filter one, 3, temperature-sensing valve, 4, Pressure gauge one, 5, thermometer one, 6, heat exchanger, 7, cable, 8, secondary returning water pipe, 9, Pressure gauge two, 10, thermometer two, 11, filling pipe, 12, moisturizing variable frequency pump, 13, bypass pipe, 14, safety valve, 15, backwater is responsible for, 16, pressure sensor one, 17, thermometer three, 18, filter two, 19, secondary returning water pipe, 20, circulating pump, 21, main forcing pipe, 22, Pressure gauge three, 23, secondary water-supply pipe, 24, flow detector, 25, pressure sensor two, 26, temperature sensor, 27, switch board, 28, frequency converter, 29, controller, 30, climate compensator, 31, touch-screen, 32, outdoor temperature sensor.
Detailed description of the invention
With regard to accompanying drawing 1, circulating pump frequency conversion heating heat-exchange unit of the present invention is described in detail below below.
As shown in Figure 1, circulating pump frequency conversion heating heat-exchange unit of the present invention is primarily of heat exchanger 6, circulating pump 20, flow detector 24, temperature sensor 26 and switch board 27 form, the primary side of heat exchanger 6 is connected with a feed pipe 1 and primary water pipe 8 respectively, the secondary side water inlet of heat exchanger 6 is connected after circulating pump 20 by secondary returning water pipe 19, the secondary side water outlet of heat exchanger 6 is connected with secondary water-supply pipe 23, a feed pipe 1 is provided with temperature-sensing valve 3, before temperature-sensing valve 3, filter 1 is housed, one time feed pipe 1 was also provided with Pressure gauge 1 and thermometer 1 before connection heat exchanger 6, primary water pipe 8 is equiped with Pressure gauge 29 and thermometer 2 10, circulating pump 20 water inlet is responsible for 15 with backwater and is connected, backwater supervisor 15 is connected with secondary returning water pipe 19, secondary returning water pipe 19 is provided with filter 2 18, backwater supervisor 15 is equipped with safety valve 14, and be provided with pressure sensor 1 and thermometer 3 17, backwater supervisor 15 is also connected with filling pipe 11, filling pipe 11 is equiped with moisturizing variable frequency pump 12, filling pipe 11 and moisturizing variable frequency pump 12 are for carrying out frequency-changing pressure stabilizing moisturizing to backwater supervisor 15, circulating pump 20 water outlet is connected with main forcing pipe 21, main forcing pipe 21 is connected with the import of heat exchanger 6 secondary side, main forcing pipe 21 is provided with Pressure gauge 3 22, walk around circulating pump 20 and be provided with bypass pipe 13 between backwater supervisor 15 and main forcing pipe 21, the secondary water-supply pipe 23 being connected water outlet with heat exchanger 6 secondary side is equiped with flow detector 24, pressure sensor 2 25 and temperature sensor 26.
Described temperature-sensing valve 3, moisturizing variable frequency pump 12, pressure sensor 1, circulating pump 20, flow detector 24, pressure sensor 2 25 and temperature sensor 26 separately cabling line 7 are connected with switch board 27 respectively, switch board 27 also applies cable 7 and is connected with outdoor temperature sensor 32, and outdoor temperature sensor 32 is installed in outdoor and for climate temperature situation of change outside sensing chamber; Described circulating pump 20 is 2 ~ 4 and is arranged in parallel.
Integratedly in described switch board 27 be equiped with frequency converter 28, controller 29, climate compensator 30 and touch-screen 31, and frequency converter 28 and climate compensator 30 are connected with controller 29 respectively in switch board 27, controller 29 and climate compensator 30 are connected with touch-screen 31 again, described frequency converter 28 runs for controlled circulation pump 20 frequency control, controller 29 is for circulating pump 20 start and stop, switch, excessive low water level protection, secondary water-supply pressure regulates, and moisturizing variable frequency pump 12 pairs of secondary backwater constant pressure adjusts, climate compensator 30 is for the water outlet heating-up temperature according to outdoor climate variations in temperature speed governing secondary water-supply pipe 23 adaptively, and regulate temperature-sensing valve 3 aperture to regulate feed pipe 1 flow accordingly, touch-screen 31 is for showing all kinds of parameters with monitoring, comprise backwater and be responsible for 15 pressure, secondary water-supply pipe 23 pressure and temperature, secondary cycle flow, temperature-sensing valve 3 aperture, circulating pump 20 and moisturizing variable frequency pump 12 operational factor.Described pressure sensor 1 is responsible for 15 pressure for the backwater detecting secondary returning water pipe 19 connection; Described pressure sensor 2 25 is for detecting secondary water-supply pipe 23 pressure; Described temperature sensor 26 is for detecting the water outlet heating-up temperature (i.e. secondary water-supply pipe temperature) of secondary water-supply pipe 23; Described flow detector 24 is for detecting secondary cycle flow.
Operation principle of the present invention is, heat exchanger 6 is by heat that one of primary side time feed pipe 1 is carried, the secondary hot water being converted to secondary side heat supply user demand automatically and continuously exports, the secondary backwater of heat supply user is taken out stains by filter 2 18 by secondary returning water pipe 19, circulating pump 20 is delivered to heat exchanger 6 after pressurizeing and heats, and produce user's heat demand and the heating water that is suitable for outdoor climate variations in temperature heats, climate compensator 30 in switch board 27 adjusts the water outlet heating-up temperature of secondary water-supply pipe 23 adaptively according to climate temperature situation of change outside outdoor temperature sensor 32 sensing chamber, when outdoor climate temperature height, water outlet heating-up temperature is relatively low, when outdoor climate temperature is low, water outlet heating-up temperature wants high relatively, according to the temperature sensor 26 of secondary water-supply pipe 23, climate compensator 30 detects that water outlet heating-up temperature compares with the setting leaving water temperature being suitable for outdoor climate variations in temperature after, the aperture of automatic adjustment temperature-sensing valve 3 is to regulate the flow of a feed pipe 1, when temperature sensor 26 detects that water outlet heating-up temperature is higher than when being suitable for the setting leaving water temperature of outdoor climate variations in temperature, temperature-sensing valve 3 turns down the flow of a feed pipe 1, until close, when temperature sensor 26 detects that water outlet heating-up temperature is lower than when being suitable for the setting leaving water temperature of outdoor climate variations in temperature, the flow of a large feed pipe 1 left by temperature-sensing valve 3, until standard-sized sheet, thus realize the energy-conservation of alternating temperature heat supply, comfortable effect, simultaneously, secondary water-supply pipe 23 pressure that the secondary cycle flow that circulating pump 20 detects according to flow detector 24 is corresponding different, implement variable quantity and pressure by frequency converter 28 relative to pressure sensor 2 25 to control, secondary cycle flow and secondary water-supply pipe 23 pressure are secondary parabolic curve relation, secondary cycle flow is large, and then secondary water-supply pipe 23 pressure is high, secondary cycle flow little then secondary water-supply pipe 23 pressure is low, thus reach the effect of saving power consumption, the secondary parabolic curve of secondary cycle flow and secondary water-supply pipe 23 pressure is more close to the characteristic curve of secondary cycle pipeline, its power savings is more obvious, when circulating pump 20 runs, when pressure sensor 1 detects that backwater is responsible for 15 pressure lower than backwater setup pressure value, moisturizing variable frequency pump 12 starts and implements constant pressure making up water to keep its constant pressure to backwater supervisor 15, until backwater be responsible for 15 pressure stabilitys in backwater setup pressure value and maintain 30s ~ 60s time, run by stopping moisturizing variable frequency pump 12, moisturizing variable frequency pump 12 is shut down, when detecting that backwater is responsible for 15 pressure lower than another setup pressure value, system will judge backwater supervisor 15 and secondary returning water pipe 19 lack of water, circulating pump 20 stoppage protection is also reported to the police, and when backwater is responsible for 15 pressure recover to backwater setup pressure value, circulating pump 20 automatically starts and recovers normal operation.
Claims (4)
1. a circulating pump frequency conversion heating heat-exchange unit is primarily of heat exchanger, circulating pump, flow detector, temperature sensor and switch board composition, the primary side of heat exchanger is connected with a feed pipe and primary water pipe respectively, the secondary side water inlet of heat exchanger is connected after circulating pump by secondary returning water pipe, the secondary side water outlet of heat exchanger is connected with secondary water-supply pipe, it is characterized in that, a feed pipe is provided with temperature-sensing valve, circulating pump water inlet is responsible for backwater and is connected, backwater supervisor be connected with secondary returning water pipe, backwater supervisor is equipped with safety valve, and be provided with pressure sensor one and thermometer three, backwater supervisor be also connected with filling pipe, filling pipe is equiped with moisturizing variable frequency pump, circulating pump water outlet is connected with main forcing pipe, main forcing pipe is connected with the import of heat exchanger secondary side, the secondary water-supply pipe being connected water outlet with heat exchanger secondary side is equiped with flow detector, pressure sensor two and temperature sensor, described temperature-sensing valve, moisturizing variable frequency pump, pressure sensor one, circulating pump, flow detector, pressure sensor two and temperature sensor separately cabling line are connected with switch board respectively, switch board also applies cable and is connected with outdoor temperature sensor, integratedly in switch board be equiped with frequency converter, controller, climate compensator and touch-screen, and frequency converter and climate compensator are connected with controller respectively in switch board, controller and climate compensator are connected with touch-screen again.
2. circulating pump frequency conversion heating heat-exchange unit according to claim 1, is characterized in that, one time feed pipe was also provided with Pressure gauge one and thermometer one before connection heat exchanger, and primary water pipe is equiped with Pressure gauge two and thermometer two.
3. circulating pump frequency conversion heating heat-exchange unit according to claim 1, it is characterized in that, main forcing pipe is provided with Pressure gauge three.
4. circulating pump frequency conversion heating heat-exchange unit according to claim 1, it is characterized in that, described circulating pump is 2 ~ 4 and is arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410570182.6A CN104848313A (en) | 2014-10-23 | 2014-10-23 | Variable-frequency heating heat exchange unit of circulating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410570182.6A CN104848313A (en) | 2014-10-23 | 2014-10-23 | Variable-frequency heating heat exchange unit of circulating pump |
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| Publication Number | Publication Date |
|---|---|
| CN104848313A true CN104848313A (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410570182.6A Pending CN104848313A (en) | 2014-10-23 | 2014-10-23 | Variable-frequency heating heat exchange unit of circulating pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084452A (en) * | 2018-08-30 | 2018-12-25 | 青岛海信日立空调系统有限公司 | Air conditioning control method and air conditioner |
-
2014
- 2014-10-23 CN CN201410570182.6A patent/CN104848313A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084452A (en) * | 2018-08-30 | 2018-12-25 | 青岛海信日立空调系统有限公司 | Air conditioning control method and air conditioner |
| CN109084452B (en) * | 2018-08-30 | 2021-11-19 | 青岛海信日立空调系统有限公司 | Air conditioner control method and air conditioner |
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Application publication date: 20150819 |