CN204313358U - A kind of subregion heating heat-exchange system - Google Patents
A kind of subregion heating heat-exchange system Download PDFInfo
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- CN204313358U CN204313358U CN201420661671.8U CN201420661671U CN204313358U CN 204313358 U CN204313358 U CN 204313358U CN 201420661671 U CN201420661671 U CN 201420661671U CN 204313358 U CN204313358 U CN 204313358U
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The utility model discloses a kind of subregion heating heat-exchange system primarily of plate type heat exchanger, expansion tank, moisturizing variable frequency pump, circulating pump, directly-connected boosting variable frequency pump, pressure reduction control valve, outdoor temperature sensor, heat low district, heat high district and switch board composition, the secondary side interface of plate type heat exchanger is connected with low district heating and supplying water Guan Hedi district heating water return pipe respectively, low district heating and supplying water pipe is also provided with high district heating and supplying water pipe and is connected with the high district of heating, heat high district also be provided with high district heating water return Guan Yudi district heating water return pipe and be connected, high district heating and supplying water pipe is equipped with directly-connected boosting variable frequency pump, high district heating water return pipe is equipped with electromagnetic shut-off valve, open and close valve and pressure reduction control valve.The beneficial effects of the utility model are, the high district of heating of the present utility model and the low district of heating share plate type heat exchanger heating, circulating pump pressurization and the moisturizing of moisturizing variable frequency pump, greatly save investment and take up an area, and adopting weather compensation adjustment improve pleasant effect and reach energy-saving effect.
Description
Technical field
The utility model relates to heating technology field, specifically a kind of subregion heating heat-exchange system.
Background technology
Along with the development of building technology and the raising of livable level, the heating of skyscraper subregion is more and more general.Skyscraper subregion heating in the market arranges two covers often by heat exchange station or many cover heat-exchange unit carry out subregion heating separately, and often cover heat-exchange unit all includes the auxiliary facilities such as heat exchanger, circulating pump, small pump, water supply tank, not only increase occupation of land, and investment is also high.
Utility model content
The purpose of this utility model is to provide a kind of takes up an area less, reduced investment and the good subregion heating heat-exchange system of heating effect.
The utility model solves the technical scheme that its technical problem adopts: a kind of subregion heating heat-exchange system is primarily of plate type heat exchanger, expansion tank, moisturizing variable frequency pump, circulating pump, directly-connected boosting variable frequency pump, pressure reduction control valve, outdoor temperature sensor, heat low district, heat high district and switch board composition, the primary side interface of plate type heat exchanger is connected with a feed pipe and primary water pipe respectively, at a feed pipe, three-way temperature control valve is housed, and three-way temperature control valve is provided with shunt valve is connected with primary water pipe, the secondary side interface of plate type heat exchanger is connected with low district heating and supplying water Guan Hedi district heating water return pipe respectively, low district heating and supplying water Guan Hedi district heating water return pipe is connected with the low district of heating more respectively, before Qie Di district heating water return pipe connecting plate type heat exchanger, filter one is housed, low district heating water return pipe is equipped with circulating pump after filter one, before circulating pump, low district heating water return pipe after filter one is provided with pressure sensor one, and safety valve is housed, before circulating pump, low district heating water return pipe after filter one is also connected with supplementing water pressure pipe and relief tube, supplementing water pressure pipe is connected with the expansion tank arranged respectively with the other end of relief tube again, and supplementing water pressure pipe is connected to the water intaking of expansion tank bottom, relief tube is connected to expansion tank top, relief tube is equipped with pressure release electromagnetic valve, moisturizing variable frequency pump supplementing water pressure pipe is equipped with, level sensor sensed water level is provided with in expansion tank, expansion tank is also connected with filling pipe intakes, and moisturizing magnetic valve controlled feed is housed on filling pipe, filling pipe is equipped with water softening device after moisturizing magnetic valve, the secondary side outlet of plate type heat exchanger is connected with low district heating and supplying water pipe, low district heating and supplying water pipe is provided with temperature sensor and pressure sensor two, low district heating and supplying water pipe is also provided with high district heating and supplying water pipe and is connected with the high district of heating, the high district Hai Yugao district heating water return pipe that heats connects, high district heating water return Guan Zaiyu low district heating water return pipe connects, and before high district heating water return pipe is connected to circulating pump, on low district heating water return pipe after filter one, high district heating and supplying water pipe is equipped with directly-connected boosting variable frequency pump and check-valves one, walk around directly-connected boosting variable frequency pump and check-valves one to be also provided with bypass pipe and to be connected with high district heating and supplying water pipe, and check-valves two bypass pipe is equipped with, high district heating and supplying water pipe is also provided with pressure sensor five after bypass pipe, high district heating water return pipe is equiped with filter two in turn along water (flow) direction, pressure sensor four, electromagnetic shut-off valve, open and close valve, pressure reduction control valve and pressure sensor three, and keying valve is also provided with on the high district heating and supplying water pipe after connection tubule is connected to directly-connected boosting variable frequency pump and before check-valves one.
Described three-way temperature control valve, moisturizing magnetic valve, water softening device, level sensor, moisturizing variable frequency pump, pressure release electromagnetic valve, pressure sensor one, circulating pump, pressure sensor two, temperature sensor, pressure sensor three, pressure reduction control valve, electromagnetic shut-off valve, pressure sensor four, pressure sensor five and directly-connected boosting variable frequency pump are distinguished cabling line separately and are connected with switch board, switch board also applies cable and is connected with the outdoor temperature sensor being installed in outdoor, outdoor temperature sensor is used for climate temperature outside sensing chamber, and the outdoor climate temperature signal detected is transferred to switch board in time.
Described water softening device is used for softening the filling pipe water inlet of expansion tank, to reduce Ca
2+, Mg
2+hardness.
Operation principle of the present utility model is, heat low district and heating high district share plate type heat exchanger heating and circulating pump pressurize, during normal heating, pump operating cycle, the temperature sensor be contained on low district heating and supplying water pipe detects plate type heat exchanger leaving water temperature, and adjust its water outlet set temperature value adaptively according to climate temperature situation of change outside outdoor temperature sensor sensing chamber, when outdoor climate temperature height, water outlet set temperature value is relatively low, when outdoor climate temperature is low, water outlet set temperature value wants high relatively, three-way temperature control valve then regulates feed pipe to enter the flow of plate type heat exchanger according to the water outlet set temperature value of temperature sensor adjustment automatically, when temperature sensor detects that plate type heat exchanger leaving water temperature is higher than when being suitable for the water outlet set temperature value of outdoor climate variations in temperature, three-way temperature control valve turns down the flow that feed pipe enters plate type heat exchanger, flow more than needed is directly back to primary water pipe from shunt valve, when temperature sensor detects that plate type heat exchanger leaving water temperature is lower than when being suitable for the water outlet set temperature value of outdoor climate variations in temperature, three-way temperature control valve opens the flow that a large feed pipe enters plate type heat exchanger, thus make plate type heat exchanger leaving water temperature maintain in the water outlet set temperature value of corresponding adjustment all the time, reach automatic temperature changing to regulate and energy-conservation comfortable heating effect,
Meanwhile, pressure sensor one detects circulating pump intake pressure, and be provided with backwater constant voltage value, super-pressure force value and water deprivation stress value three control points, when pressure sensor one detects circulating pump intake pressure lower than the backwater constant voltage value set, moisturizing variable frequency pump starts and fetches water in expansion tank, Bing Duidi district heating water return pipe carries out frequency-changing pressure stabilizing moisturizing, be stabilized in the backwater constant voltage value of setting to keep circulating pump intake pressure, and when circulating pump intake pressure is stabilized in the backwater constant voltage value of setting, and when maintaining 30s ~ 60s, moisturizing variable frequency pump is shut down and is entered dormancy holding state, simultaneously, the level sensor be installed in expansion tank detects expansion tank water level, and be provided with high water level point, low water level point and lack of water water level point, when level sensor detect expansion tank water level be in setting low water level point and following time, moisturizing opened by the moisturizing magnetic valve being contained in filling pipe, water softening device obtains electric operation, expansion tank water level rises, when level sensor detect expansion tank water level be in setting high water level point and above time, moisturizing closed electromagnetic valve, water softening device dead electricity is shut down, when level sensor detect expansion tank water level be in setting lack of water water level point and following time, the moisturizing variable frequency pump run is shut down, and report to the police, until expansion tank water level rezime and water level higher than setting low water level point more than time, lack of water is reported to the police and is eliminated, moisturizing variable frequency pump returns to normal condition automatically, when pressure sensor one detect circulating pump intake pressure higher than setting constant voltage value and reach setting super-pressure force value and above time, pressure release electromagnetic valve is opened to sluice and is stored to expansion tank, when pump suction supply pressure to be recycled returns to the backwater constant voltage value of setting, pressure release electromagnetic valve is closed, when pressure sensor one detect circulating pump intake pressure lower than setting water deprivation stress value and following time, circulating pump stoppage protection, when pump suction supply pressure to be recycled returns to the backwater constant voltage value of setting, circulating pump automatically starts and recovers normal operation,
Heat high district heating time, directly-connected boosting variable frequency pump runs, directly-connected boosting variable frequency pump is by the water intaking of high district heating and supplying water Guan Congdi district heating and supplying water pipe, heating high district heating is pressurised into through frequency conversion, its backwater is taken out stains through filter two by high district heating water return pipe, low district heating water return pipe is back to after pressure reduction control valve decompression, pressure sensor two detects low district heating and supplying water pipe pressure, and be provided with anhydrous force value, pressure sensor three detects the pressure of high district's heating water return pipe after pressure reduction control valve, and be provided with the constant pressure of return water value in high district, pressure sensor four detects the pressure of high district's heating water return pipe before electromagnetic shut-off valve, pressure sensor five detects high district heating and supplying water pipe pressure, and be provided with high district heating constant voltage value, when pressure sensor two detects low district heating and supplying water pipe pressure lower than the anhydrous force value set, directly-connected boosting variable frequency pump stoppage protection, when pressure sensor two detects low district heating and supplying water pipe pressure higher than the anhydrous force value set, the automatic startup optimization of directly-connected boosting variable frequency pump, high district's heating constant voltage value that directly-connected boosting variable frequency pump sets according to pressure sensor five carries out frequency-changing pressure stabilizing operation, when pressure sensor five detects high district heating and supplying water pipe pressure lower than the high district's heating constant voltage value set, directly-connected boosting variable frequency pump improves its rotating speed, high district heating and supplying water pipe pressure raises, when pressure sensor five detects high district heating and supplying water pipe pressure higher than the high district's heating constant voltage value set, directly-connected boosting variable frequency pump reduces its rotating speed, high district heating and supplying water pipe pressure declines, thus Shi Gao district heating and supplying water pipe pressure remains in high district's heating constant voltage value of pressure sensor five setting, simultaneously, opening and closing valve carries the discharge pressure of directly-connected boosting variable frequency pump to open by being communicated with tubule, the constant pressure of return water value in high district that pressure reduction control valve sets according to pressure sensor three regulates its aperture adaptively, decompression, when pressure sensor three detects the high district constant pressure of return water value of high district heating water return pipe pressure higher than setting, pressure reduction control valve turns down its circulation, the pressure of high district heating water return pipe after pressure reduction control valve reduces, when pressure sensor three detects the high district constant pressure of return water value of high district heating water return pipe pressure lower than setting, pressure reduction control valve opens its circulation large, heating water return pipe pressure after pressure reduction control valve in high district raises, thus Shi Gao district heating water return pipe pressure maintains in the constant pressure of return water value in high district of setting all the time, ensure that the heating effect in the high district that heats, when directly-connected boosting variable frequency pump runs lasting 30s ~ more than 60s under the minimum speed set, system judges that directly-connected boosting variable frequency pump exports without circular flow, directly-connected boosting variable frequency pump is shut down, electromagnetic shut-off valve is closed, open and close valve automatically to close because of decompression, high district heating water return pipe cuts off.
The beneficial effects of the utility model are, the high district of heating of the present utility model and the low district of heating share plate type heat exchanger heating, circulating pump pressurization and the moisturizing of moisturizing variable frequency pump, greatly save investment and take up an area, and adopting weather compensation adjustment improve pleasant effect and reach energy-saving effect.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure, 1, a feed pipe, 2, three-way temperature control valve, 3, plate type heat exchanger, 4, shunt valve, 5, primary water pipe, 6, moisturizing magnetic valve, 7, filling pipe, 8, water softening device, 9, expansion tank, 10, level sensor, 11, moisturizing variable frequency pump, 12, pressure release electromagnetic valve, 13, relief tube, 14, supplementing water pressure pipe, 15, pressure sensor one, 16, low district heating water return pipe, 17, filter one, 18, heat low district, and 19, low district heating and supplying water pipe, 20, safety valve, 21, circulating pump, 22, pressure sensor two, 23, temperature sensor, 24, pressure sensor three, 25, pressure reduction control valve, 26, open and close valve, 27, electromagnetic shut-off valve, 28, pressure sensor four, 29, filter two, 30, high district heating water return pipe, 31, be communicated with tubule, 32, heat high district, and 33, pressure sensor five, 34, check-valves one, 35, check-valves two, 36, bypass pipe, 37, directly-connected boosting variable frequency pump, 38, high district heating and supplying water pipe, 39, cable, 40, switch board, 41, outdoor temperature sensor.
Detailed description of the invention
With regard to accompanying drawing 1, a kind of subregion heating heat-exchange system of the present utility model is described in detail below below.
As shown in Figure 1, a kind of subregion heating heat-exchange system of the present utility model is primarily of plate type heat exchanger 3, expansion tank 9, moisturizing variable frequency pump 11, circulating pump 21, directly-connected boosting variable frequency pump 37, pressure reduction control valve 25, outdoor temperature sensor 41, heat low district 18, heat high district 32 and switch board 40 forms, the primary side interface of plate type heat exchanger 3 is connected with a feed pipe 1 and primary water pipe 5 respectively, at a feed pipe 1, three-way temperature control valve 2 is housed, and three-way temperature control valve 2 is provided with shunt valve 4 is connected with primary water pipe 5, the secondary side interface of plate type heat exchanger 3 is connected with low district heating and supplying water Guan19He Di district heating water return pipe 16 respectively, low district heating and supplying water Guan19He Di district heating water return pipe 16 is connected with the low district 18 of heating more respectively, before Qie Di district heating water return pipe 16 connecting plate type heat exchanger 3, filter 1 is housed, low district heating water return pipe 16 is equipped with circulating pump 21 after filter 1, before circulating pump 21, low district heating water return pipe 16 after filter 1 is provided with pressure sensor 1, and safety valve 20 is housed, before circulating pump 21, low district heating water return pipe 16 after filter 1 is also connected with supplementing water pressure pipe 14 and relief tube 13, supplementing water pressure pipe 14 is connected with the expansion tank 9 arranged respectively with the other end of relief tube 13 again, and supplementing water pressure pipe 14 is connected to the water intaking of expansion tank 9 bottom, relief tube 13 is connected to expansion tank 9 top, relief tube 13 is equipped with pressure release electromagnetic valve 12, moisturizing variable frequency pump 11 supplementing water pressure pipe 14 is equipped with, level sensor 10 sensed water level is provided with in expansion tank 9, expansion tank 9 is also connected with filling pipe 7 intakes, and moisturizing magnetic valve 6 control water inlet is housed on filling pipe 7, filling pipe 7 is equipped with water softening device 8 after moisturizing magnetic valve 6, the secondary side outlet of plate type heat exchanger 3 is connected with low district heating and supplying water pipe 19, low district heating and supplying water pipe 19 is provided with temperature sensor 23 and pressure sensor 2 22, low district heating and supplying water pipe 19 is also provided with high district heating and supplying water pipe 38 and is connected with the high district 32 of heating, the high district 32 Hai Yugao district heating water return pipe 30 that heats connects, high district heating water return pipe 30 Zai Yudi district heating water return pipe 16 connects, and before high district heating water return pipe 30 is connected to circulating pump 21, on low district heating water return pipe 16 after filter 1, high district heating and supplying water pipe 38 is equipped with directly-connected boosting variable frequency pump 37 and check-valves 1, walk around directly-connected boosting variable frequency pump 37 and check-valves 1 to be also provided with bypass pipe 36 and to be connected with high district heating and supplying water pipe 38, and bypass pipe 36 is equipped with check-valves 2 35, high district heating and supplying water pipe 38 is also provided with pressure sensor 5 33 after bypass pipe 36, high district heating water return pipe 30 is equiped with filter 2 29 in turn along water (flow) direction, pressure sensor 4 28, electromagnetic shut-off valve 27, open and close valve 26, pressure reduction control valve 25 and pressure sensor 3 24, and keying valve 26 is also provided with on the high district heating and supplying water pipe 38 after connection tubule 31 is connected to directly-connected boosting variable frequency pump 37 and before check-valves 1.
Described three-way temperature control valve 2, moisturizing magnetic valve 6, water softening device 8, level sensor 10, moisturizing variable frequency pump 11, pressure release electromagnetic valve 12, pressure sensor 1, circulating pump 21, pressure sensor 2 22, temperature sensor 23, pressure sensor 3 24, pressure reduction control valve 25, electromagnetic shut-off valve 27, pressure sensor 4 28, pressure sensor 5 33 and the respective cabling line 39 respectively of directly-connected boosting variable frequency pump 37 are connected with switch board 40, switch board 40 also applies cable 39 and is connected with the outdoor temperature sensor 41 being installed in outdoor, outdoor temperature sensor 41 is for climate temperature outside sensing chamber, and the outdoor climate temperature signal detected is transferred to switch board 40 in time.
Described water softening device 8 is for softening filling pipe 7 water inlet of expansion tank 9, to reduce Ca
2+, Mg
2+hardness.
Operation principle of the present utility model is, heat low district 18 and the high district 32 of heating shares plate type heat exchanger 3 and to heat and circulating pump 21 pressurizes, during normal heating, circulating pump 21 runs, the temperature sensor 23 be contained on low district heating and supplying water pipe 19 detects the leaving water temperature of plate type heat exchanger 3, and adjust its water outlet set temperature value adaptively according to climate temperature situation of change outside outdoor temperature sensor 41 sensing chamber, when outdoor climate temperature height, water outlet set temperature value is relatively low, when outdoor climate temperature is low, water outlet set temperature value wants high relatively, three-way temperature control valve 2 regulates feed pipe 1 to enter the flow of plate type heat exchanger 3 according to the water outlet set temperature value that temperature sensor 23 adjusts automatically, when temperature sensor 23 detects that plate type heat exchanger 3 leaving water temperature is higher than when being suitable for the water outlet set temperature value of outdoor climate variations in temperature, three-way temperature control valve 2 turns down the flow that feed pipe 1 enters plate type heat exchanger 3, flow more than needed is directly back to primary water pipe 5 from shunt valve 4, when temperature sensor 23 detects that plate type heat exchanger 3 leaving water temperature is lower than when being suitable for the water outlet set temperature value of outdoor climate variations in temperature, three-way temperature control valve 2 opens the flow that a large feed pipe 1 enters plate type heat exchanger 3, thus make the leaving water temperature of plate type heat exchanger 3 maintain in the water outlet set temperature value of corresponding adjustment all the time, reach automatic temperature changing to regulate and energy-conservation comfortable heating effect,
Meanwhile, pressure sensor 1 detects circulating pump 21 intake pressure, and be provided with backwater constant voltage value, super-pressure force value and water deprivation stress value three control points, when pressure sensor 1 detects circulating pump 21 intake pressure lower than the backwater constant voltage value set, moisturizing variable frequency pump 11 starts and fetches water in expansion tank 9, Bing Duidi district heating water return pipe 16 carries out frequency-changing pressure stabilizing moisturizing, be stabilized in the backwater constant voltage value of setting to keep circulating pump 21 intake pressure, and when circulating pump 21 intake pressure is stabilized in the backwater constant voltage value of setting, and when maintaining 30s ~ 60s, dormancy holding state is shut down and entered to moisturizing variable frequency pump 11, simultaneously, the level sensor 10 be installed in expansion tank 9 detects expansion tank 9 water level, and be provided with high water level point, low water level point and lack of water water level point, when level sensor 10 detect expansion tank 9 water level be in setting low water level point and following time, moisturizing opened by the moisturizing magnetic valve 6 being contained in filling pipe 7, water softening device 8 obtains electric operation, expansion tank 9 water level rises, when level sensor 10 detect expansion tank 9 water level be in setting high water level point and above time, moisturizing magnetic valve 6 cuts out, water softening device 8 dead electricity is shut down, when level sensor 10 detect expansion tank 9 water level be in setting lack of water water level point and following time, the moisturizing variable frequency pump 11 run is shut down, and report to the police, until expansion tank 9 water level rezime and water level higher than setting low water level point more than time, lack of water is reported to the police and is eliminated, moisturizing variable frequency pump 11 returns to normal condition automatically, when pressure sensor 1 detect circulating pump 21 intake pressure higher than setting constant voltage value and reach setting super-pressure force value and above time, pressure release electromagnetic valve 12 opens the storage to expansion tank 9 that sluices, when pump 21 intake pressure to be recycled returns to the backwater constant voltage value of setting, pressure release electromagnetic valve 12 is closed, when pressure sensor 1 detect circulating pump 21 intake pressure lower than setting water deprivation stress value and following time, circulating pump 21 stoppage protection, when pump 21 intake pressure to be recycled returns to the backwater constant voltage value of setting, circulating pump 21 automatically starts and recovers normal and runs,
Heat high district 32 when heating, directly-connected boosting variable frequency pump 37 runs, directly-connected boosting variable frequency pump 37 is fetched water by high district heating and supplying water Guan38Cong Di district heating and supplying water pipe 19, be pressurised into the high district 32 of heating through frequency conversion to heat, its backwater is taken out stains through filter 2 29 by high district heating water return pipe 30, pressure reduction control valve 25 is back to low district heating water return pipe 16 after reducing pressure, pressure sensor 2 22 detects low district heating and supplying water pipe 19 pressure, and be provided with anhydrous force value, pressure sensor 3 24 detects the pressure of high district heating water return pipe 30 after pressure reduction control valve 25, and be provided with the constant pressure of return water value in high district, pressure sensor 4 28 detects the pressure of high district heating water return pipe 30 before electromagnetic shut-off valve 27, pressure sensor 5 33 detects high district heating and supplying water pipe 38 pressure, and be provided with high district heating constant voltage value, when pressure sensor 2 22 detects low district heating and supplying water pipe 19 pressure lower than the anhydrous force value set, directly-connected boosting variable frequency pump 37 stoppage protection, when pressure sensor 2 22 detects low district heating and supplying water pipe 19 pressure higher than the anhydrous force value set, directly-connected boosting variable frequency pump 37 is startup optimization automatically, high district's heating constant voltage value that directly-connected boosting variable frequency pump 37 sets according to pressure sensor 5 33 carries out frequency-changing pressure stabilizing operation, when pressure sensor 5 33 detects high district heating and supplying water pipe 38 pressure lower than the high district's heating constant voltage value set, directly-connected boosting variable frequency pump 37 improves its rotating speed, high district heating and supplying water pipe 38 pressure raises, when pressure sensor 5 33 detects high district heating and supplying water pipe 38 pressure higher than the high district's heating constant voltage value set, directly-connected boosting variable frequency pump 37 reduces its rotating speed, high district heating and supplying water pipe 38 pressure drop, thus Shi Gao district heating and supplying water pipe 38 pressure remains in high district's heating constant voltage value of pressure sensor 5 33 setting, simultaneously, opening and closing valve 26 carries the discharge pressure of directly-connected boosting variable frequency pump 37 to open by connection tubule 31, the constant pressure of return water value in high district that pressure reduction control valve 25 sets according to pressure sensor 3 24 regulates its aperture adaptively, decompression, when pressure sensor 3 24 detects the high district constant pressure of return water value of high district heating water return pipe 30 pressure higher than setting, pressure reduction control valve 25 turns down its circulation, the pressure of high district heating water return pipe 30 after pressure reduction control valve 25 reduces, when pressure sensor 3 24 detects the high district constant pressure of return water value of high district heating water return pipe 30 pressure lower than setting, pressure reduction control valve 25 opens its circulation large, high district heating water return pipe 30 pressure after pressure reduction control valve 25 raises, thus Shi Gao district heating water return pipe 30 pressure maintains in the constant pressure of return water value in high district of setting all the time, ensure that the heating effect in the high district 32 that heats, when directly-connected boosting variable frequency pump 37 runs lasting 30s ~ more than 60s under the minimum speed set, system judges that directly-connected boosting variable frequency pump 37 exports without circular flow, directly-connected boosting variable frequency pump 37 is shut down, electromagnetic shut-off valve 27 is closed, open and close valve 26 automatically to close because of decompression, high district heating water return pipe 30 cuts off.
Claims (5)
1. a subregion heating heat-exchange system, primarily of plate type heat exchanger, expansion tank, moisturizing variable frequency pump, circulating pump, directly-connected boosting variable frequency pump, pressure reduction control valve, outdoor temperature sensor, heat low district, heat high district and switch board composition, the secondary side interface of plate type heat exchanger is connected with low district heating and supplying water Guan Hedi district heating water return pipe respectively, low district heating and supplying water Guan Hedi district heating water return pipe is connected with the low district of heating more respectively, before Qie Di district heating water return pipe connecting plate type heat exchanger, filter one is housed, low district heating water return pipe is equipped with circulating pump, before circulating pump after filter one, low district heating water return pipe after filter one is provided with pressure sensor one, and safety valve is housed, it is characterized in that, low district heating and supplying water pipe is also provided with high district heating and supplying water pipe and is connected with the high district of heating, and the high district Hai Yugao district heating water return pipe that heats connects, high district heating water return Guan Zaiyu low district heating water return pipe connects, and before high district heating water return pipe is connected to circulating pump, on low district heating water return pipe after filter one, high district heating and supplying water pipe is equipped with directly-connected boosting variable frequency pump and check-valves one, high district heating water return pipe is equiped with filter two in turn along water (flow) direction, pressure sensor four, electromagnetic shut-off valve, open and close valve, pressure reduction control valve and pressure sensor three, and keying valve is also provided with on the high district heating and supplying water pipe after connection tubule is connected to directly-connected boosting variable frequency pump and before check-valves one.
2. a kind of subregion heating heat-exchange system according to claim 1, it is characterized in that, the primary side interface of plate type heat exchanger is connected with a feed pipe and primary water pipe respectively, at a feed pipe, three-way temperature control valve is housed, and three-way temperature control valve is provided with shunt valve is connected with primary water pipe.
3. a kind of subregion heating heat-exchange system according to claim 1, it is characterized in that, before circulating pump, low district heating water return pipe after filter one is also connected with supplementing water pressure pipe and relief tube, supplementing water pressure pipe is connected with the expansion tank arranged respectively with the other end of relief tube again, and supplementing water pressure pipe is connected to the water intaking of expansion tank bottom, relief tube is connected to expansion tank top, relief tube is equipped with pressure release electromagnetic valve, moisturizing variable frequency pump supplementing water pressure pipe is equipped with, level sensor sensed water level is provided with in expansion tank, expansion tank is also connected with filling pipe, and moisturizing magnetic valve is housed on filling pipe, filling pipe is equipped with water softening device after moisturizing magnetic valve.
4. a kind of subregion heating heat-exchange system according to claim 1, is characterized in that, the secondary side outlet of plate type heat exchanger is connected with low district heating and supplying water pipe, and low district heating and supplying water pipe is provided with temperature sensor and pressure sensor two.
5. a kind of subregion heating heat-exchange system according to claim 1, it is characterized in that, walk around directly-connected boosting variable frequency pump and check-valves one to be also provided with bypass pipe and to be connected with high district heating and supplying water pipe, and check-valves two bypass pipe being equipped with, high district heating and supplying water pipe is also provided with pressure sensor five after bypass pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661671.8U CN204313358U (en) | 2014-11-07 | 2014-11-07 | A kind of subregion heating heat-exchange system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420661671.8U CN204313358U (en) | 2014-11-07 | 2014-11-07 | A kind of subregion heating heat-exchange system |
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| CN204313358U true CN204313358U (en) | 2015-05-06 |
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| CN201420661671.8U Expired - Fee Related CN204313358U (en) | 2014-11-07 | 2014-11-07 | A kind of subregion heating heat-exchange system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964358A (en) * | 2015-06-15 | 2015-10-07 | 上海意利法暖通科技有限公司 | Heat exchange device of capillary tube system |
| CN108024687A (en) * | 2015-07-31 | 2018-05-11 | 伊利诺斯工具制品有限公司 | Ware wash machine with heat recovery system |
| CN108135430A (en) * | 2015-07-31 | 2018-06-08 | 伊利诺斯工具制品有限公司 | Ware wash machine with heat recovery system |
| RU2674713C1 (en) * | 2018-03-29 | 2018-12-12 | Публичное акционерное общество "Транснефть" (ПАО "Транснефть") | Heat carrier parameters regulation system on the heat supply source depending on the internal air temperature at consumers |
| CN111594902A (en) * | 2020-06-02 | 2020-08-28 | 宁波奥克斯电气股份有限公司 | Anti-freezing method and floor heating system |
-
2014
- 2014-11-07 CN CN201420661671.8U patent/CN204313358U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104964358A (en) * | 2015-06-15 | 2015-10-07 | 上海意利法暖通科技有限公司 | Heat exchange device of capillary tube system |
| CN108024687A (en) * | 2015-07-31 | 2018-05-11 | 伊利诺斯工具制品有限公司 | Ware wash machine with heat recovery system |
| CN108135430A (en) * | 2015-07-31 | 2018-06-08 | 伊利诺斯工具制品有限公司 | Ware wash machine with heat recovery system |
| US10722097B2 (en) | 2015-07-31 | 2020-07-28 | Illinois Tool Works Inc. | Warewasher with heat recovery system |
| US10722099B2 (en) | 2015-07-31 | 2020-07-28 | Illinois Tool Works Inc. | Warewasher with heat recovery system |
| CN108024687B (en) * | 2015-07-31 | 2021-06-04 | 伊利诺斯工具制品有限公司 | Warewasher with heat recovery system |
| RU2674713C1 (en) * | 2018-03-29 | 2018-12-12 | Публичное акционерное общество "Транснефть" (ПАО "Транснефть") | Heat carrier parameters regulation system on the heat supply source depending on the internal air temperature at consumers |
| CN111594902A (en) * | 2020-06-02 | 2020-08-28 | 宁波奥克斯电气股份有限公司 | Anti-freezing method and floor heating system |
| CN111594902B (en) * | 2020-06-02 | 2022-03-01 | 宁波奥克斯电气股份有限公司 | Anti-freezing method and floor heating system |
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