CN104848290A - Secondary pump frequency conversion heating system for building clusters - Google Patents
Secondary pump frequency conversion heating system for building clusters Download PDFInfo
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- CN104848290A CN104848290A CN201410575354.9A CN201410575354A CN104848290A CN 104848290 A CN104848290 A CN 104848290A CN 201410575354 A CN201410575354 A CN 201410575354A CN 104848290 A CN104848290 A CN 104848290A
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Abstract
The invention discloses a secondary pump frequency conversion heating system for building clusters. The secondary pump frequency conversion heating system mainly comprises a heat exchanger, a circulating pump, a secondary frequency conversion pump, indoor temperature controllers, a plurality of building cluster heating areas and pressure-reducing control valves. The primary side port of the heat exchanger is connected with a primary water supply pipe and a primary water return pipe, and the secondary side port of the heat exchanger is connected with a secondary water supply pipe and a secondary water return pipe. The secondary water supply pipe is provided with water distribution branch pipes connected with the building cluster heating areas, the building cluster heating areas are connected with the secondary water return pipe through water return branch pipes. The indoor temperature controllers are arranged in the building cluster heating areas. The water return branch pipes are provided with fifth solenoid valves, self-operated differential pressure balance valves and the pressure-reducing control valves. The secondary water return pipe is provided with a pressure water supplement pipe and the primary water return pipe. The secondary pump frequency conversion heating system has the advantages that configuration is complete, the occupied area is small, investment is low, centralized or decentralized management is convenient, heating to the building clusters is flexible, and the economic benefit of energy conversation is good.
Description
Technical field
The present invention relates to heat exchange heating technology field, specifically a kind of building is formed a team with secondary pump frequency conversion heating system.
Background technology
Along with the development of Urbanization Construction, the building of difference in functionality is formed a team very general.Building is formed a team and is referred to have similar style or specific function, or the combination of multiple buildings in certain limit, such as villa quarter, high rise zone, multilayer district, Office Area etc.The different heating system possibility of forming a team of building is different, such as heat height, heating duration, heating temperature etc., when heat exchange station heating is set separately when forming a team to difference building, the problems such as one-time investment is large, energy consumption is high, occupation of land is large, management maintenance is inconvenient will be caused.
Summary of the invention
The object of the present invention is to provide a kind of save to take up an area with investment and be convenient to collect point to manage and building that result of use is good is formed a team and used secondary pump frequency conversion heating system.
The technical solution adopted for the present invention to solve the technical problems is: building is formed a team with secondary pump frequency conversion heating system primarily of heat exchanger, circulating pump, double conversion pump, indoor temperature controller, building is formed a team for warm sector and pressure reduction control valve composition, the primary side interface of heat exchanger is connected with a feed pipe and primary water pipe respectively, the secondary side interface of heat exchanger is connected with secondary water-supply pipe and secondary returning water pipe respectively, a feed pipe is equipped with three-way temperature control valve, secondary water-supply pipe is provided with temperature sensor and pressure sensor one, secondary water-supply pipe is provided with range pipe and some buildings and forms a team and to be connected for warm sector after temperature sensor and pressure sensor one, building is formed a team and is supplied warm sector to be connected with secondary returning water pipe by return branch again, and each building is formed a team, district is supporting is respectively provided with respective range pipe and return branch in heating, building is formed a team and is supplied also to be provided with indoor temperature controller in warm sector, the range pipe often building confession warm sector of forming a team also is equipped with double conversion pump, range pipe is provided with pressure sensor four after double conversion pump, form a team in each building and supply the return branch in warm sector is equipped with magnetic valve five, return branch is equipped with self-balanced differential pressure valve after magnetic valve five, return branch is equipped with pressure reduction control valve after self-balanced differential pressure valve, return branch is provided with pressure sensor five after pressure reduction control valve, return branch is connected with secondary returning water pipe after pressure sensor five, double conversion pump, pressure sensor four, indoor temperature controller, magnetic valve five, pressure reduction control valve and pressure sensor five are connected with the control cabinet of setting with line more respectively, each building is formed a team and is supplied the equal correspondence in warm sector to be provided with a control cabinet, indoor temperature controller is used for building corresponding to Detection & Controling and forms a team for the least favorable control point temperature in warm sector or temperature between demarcating, arranging magnetic valve five forms a team for the loop in warm sector for shutting down at double conversion pump or close when having a power failure and cutting off this building, play a protective role.
Described secondary water-supply pipe is connected with secondary returning water pipe after connection range pipe, and secondary water-supply pipe was also equipped with check-valves four before connecting secondary return pipe, secondary returning water pipe is also equipped with filter after being connected with secondary water-supply pipe, secondary returning water pipe is equipped with circulating pump after the filters, secondary returning water pipe is connected with the secondary side import of heat exchanger after circulating pump, secondary returning water pipe is before circulating pump, safety valve and pressure sensor three is equiped with after filter, secondary returning water pipe is before circulating pump, also be connected with pressure filling pipe after filter, the other end of pressure filling pipe is connected with primary water pipe, pressure filling pipe is also equipped with moisturizing variable frequency pump and check-valves two, walk around moisturizing variable frequency pump to be also respectively equipped with the direct-connected pipe of bypass with check-valves two and to be connected with pressure filling pipe with relief tube, and on the direct-connected pipe of bypass, check-valves three is housed, relief tube is equipped with magnetic valve four, pressure filling pipe is at moisturizing variable frequency pump, before the direct-connected pipe of bypass and relief tube, check-valves one is also housed, pressure filling pipe was also equipped with magnetic valve one before check-valves one, pressure filling pipe is after check-valves one, also be provided with before moisturizing variable frequency pump and be connected with the expansion tank of setting communicating pipe, and magnetic valve three is housed on communicating pipe, expansion tank is connected with the water inlet of cold water filling pipe, and on cold water filling pipe, magnetic valve two is housed, cold water filling pipe is provided with water meter after magnetic valve two, cold water filling pipe is equipped with demineralized water treating apparatus after water meter, also level sensor is provided with in expansion tank, level sensor is for detecting expansion tank water level.
Described three-way temperature control valve, temperature sensor, pressure sensor one, pressure sensor two, magnetic valve one, demineralized water treating apparatus, magnetic valve two, level sensor, magnetic valve three, moisturizing variable frequency pump, magnetic valve four, pressure sensor three and circulating pump are distinguished cabling line separately and are connected with switch board, also separately communication interface is provided with in switch board, described communication interface is used for remote monitoring and connects, and also can be connected with upper machine communication.
Operation principle of the present invention is, the heat that feed pipe is carried by heat exchanger passes to the circulation of heat exchanger secondary side automatically and continuously, and exported by secondary water-supply pipe, temperature sensor detects secondary water-supply pipe temperature, the three-way temperature control valve be contained on a feed pipe regulates its aperture adaptively according to temperature sensor, and make secondary water-supply pipe temperature remain on the temperature value of setting, recirculated water flows through each range pipe by secondary water-supply pipe, entering each building by each range pipe again forms a team for warm sector, each building is formed a team and is supplied warm sector to be back to secondary returning water pipe by each return branch again, secondary water-supply pipe enters secondary returning water pipe through check-valves four, secondary returning water pipe is taken out stains by filter, enter heat exchanger heating after circulating pump pressurization and form circulation, magnetic valve one, magnetic valve three and magnetic valve four are all in closed condition in normal condition, the pressure sensor three be contained on secondary returning water pipe 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 three detects circulating pump intake pressure lower than the backwater constant voltage value set, magnetic valve one is opened, by pressure filling pipe from the water intaking of primary water pipe with to the moisturizing of secondary returning water pipe, now, pressure sensor two detects primary water pipe pressure, when pressure sensor two detect primary water pipe pressure higher than equal pressure sensor three set backwater constant voltage value time, moisturizing variable frequency pump does not start, pressure filling pipe directly carries out moisturizing to secondary returning water pipe by check-valves three, when pressure sensor two detects the backwater constant voltage value that primary water pipe pressure sets lower than pressure sensor three, moisturizing variable frequency pump starts, and the ftercompction of primary water pipe pressure is superposed, make the moisturizing of secondary returning water pipe and keep circulating pump intake pressure to be stabilized in the backwater constant voltage value of setting, and the backwater constant voltage value of setting is stabilized at circulating pump intake pressure, and when maintaining 30s ~ 60s, moisturizing variable frequency pump is shut down and is entered dormancy holding state, magnetic valve one cuts out, when pressure sensor three detect circulating pump intake pressure higher than setting constant voltage value and reach setting super-pressure force value and above time, magnetic valve three and magnetic valve four are opened, secondary returning water pipe stores to expansion tank by sluicing relief tube and communicating pipe, when pump suction supply pressure to be recycled returns to the backwater constant voltage value of setting, magnetic valve three and magnetic valve four are closed, and relief tube and communicating pipe cut off, when pressure sensor three 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,
Meanwhile, each building is formed a team and is supplied warm sector by range pipe from secondary water-supply pipe water intaking heating, be serially connected in the water outlet constant voltage value that the double conversion pump on range pipe sets relative to pressure sensor four and carry out frequency-changing pressure stabilizing operation, each building form a team for warm sector backwater first by return branch by after magnetic valve five to self-balanced differential pressure valve effect, the backwater level pressure value set according to pressure sensor five by pressure reduction control valve is again carried out decompression and is entered secondary returning water pipe and form circulation, pressure sensor five detects the pressure of return branch after pressure reduction control valve, namely return branch enters the pressure before secondary returning water pipe, and be provided with backwater level pressure value, the backwater level pressure value that pressure reduction control valve sets according to pressure sensor five regulates its aperture adaptively, decompression, when pressure sensor five detects the pressure of return branch after pressure reduction control valve higher than the backwater level pressure value set, pressure reduction control valve turns down its circulation, the pressure of return branch after pressure reduction control valve reduces, when pressure sensor five detects the pressure of return branch after pressure reduction control valve lower than the backwater level pressure value set, pressure reduction control valve opens its circulation large, the pressure of return branch after pressure reduction control valve raises, thus make the pressure of return branch after pressure reduction control valve maintain in the backwater level pressure value of setting all the time, thus ensure that each building form a team for warm sector pressure of return water balance and heating effect.
When first heating debugging, the circulation be made up of secondary water-supply pipe and secondary returning water pipe, give water filling by expansion tank and moisturizing variable frequency pump, magnetic valve one and magnetic valve four are closed, magnetic valve two is opened, and cold water filling pipe is intake, and is contained in its inflow of water meter measurement on cold water filling pipe, softened its influent quality by demineralized water treating apparatus, magnetic valve three is opened, moisturizing variable frequency pump is fetched water and pressure water injection in expansion tank simultaneously.In the injecting process, 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 detects the low water level point that expansion tank water level decreasing to level sensor sets and is following, moisturizing opened by magnetic valve two, demineralized water treating apparatus 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, magnetic valve two cuts out, demineralized water treating apparatus 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 three detects that circulating pump intake pressure reaches the backwater constant voltage value of setting, magnetic valve two cuts out, demineralized water treating apparatus dead electricity is shut down, three-way temperature control valve is opened, heat exchanger puts into operation, circulating pump starts, and a feed pipe is back to primary water pipe by heat exchanger, the moisturizing of secondary returning water pipe passes through pressure filling pipe from primary water pipe water intaking ftercompction, voltage stabilizing, now, system formally enters the recurrent state that heats normally, and under normal heating recurrent state, magnetic valve two cuts out all the time, demineralized water treating apparatus is in dead electricity stopped status.
The invention has the beneficial effects as follows, the present invention have configuration complete, take up an area less, the advantage such as reduced investment, and be conducive to concentrating and Decentralization, the heating that each building is formed a team is used flexibly, and energysaving effectiveness be good.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1, a feed pipe, 2, three-way temperature control valve, 3, heat exchanger, 4, secondary water-supply pipe, 5, temperature sensor, 6, pressure sensor one, 7, shunt valve, 8, pressure sensor two, 9, primary water pipe, 10, pressure filling pipe, 11, magnetic valve one, 12, demineralized water treating apparatus, 13, water meter, 14, magnetic valve two, 15, cold water filling pipe, 16, expansion tank, 17, level sensor, 18, communicating pipe, 19, magnetic valve three, 20, check-valves one, 21, the direct-connected pipe of bypass, 22, relief tube, 23, moisturizing variable frequency pump, 24, magnetic valve four, 25, check-valves two, 26, check-valves three, 27, safety valve, 28, pressure sensor three, 29, filter, 30, check-valves four, 31, circulating pump, 32, secondary returning water pipe, 33, cable, 34, switch board, 35, communication interface, 36, range pipe, 37, double conversion pump, 38, pressure sensor four, 39, control cabinet, 40, indoor temperature controller, 41, building is formed a team for warm sector, and 42, return branch, 43, magnetic valve five, 44, self-balanced differential pressure valve, 45, pressure reduction control valve, 46, pressure sensor five.
Detailed description of the invention
With regard to accompanying drawing 1 building of the present invention formed a team below and to be described in detail below with secondary pump frequency conversion heating system.
As shown in Figure 1, building of the present invention is formed a team with secondary pump frequency conversion heating system primarily of heat exchanger 3, circulating pump 31, double conversion pump 37, indoor temperature controller 40, building is formed a team and is supplied warm sector 41 and pressure reduction control valve 45 to form, the primary side interface of heat exchanger 3 is connected with a feed pipe 1 and primary water pipe 9 respectively, the secondary side interface of heat exchanger 3 is connected with secondary water-supply pipe 4 and secondary returning water pipe 32 respectively, a feed pipe 1 is equipped with three-way temperature control valve 2, three-way temperature control valve 2 is also provided with shunt valve 7 and is connected with primary water pipe 9, secondary water-supply pipe 4 is provided with temperature sensor 5 and pressure sensor 1, secondary water-supply pipe 4 is provided with range pipe 36 and some buildings and forms a team and to be connected for warm sector 41 after temperature sensor 5 and pressure sensor 1, building is formed a team and is supplied warm sector 41 to be connected with secondary returning water pipe 32 by return branch 42 again, and each building is formed a team and is provided with respective range pipe 36 and return branch 42 for warm sector 41 is supporting respectively, building is formed a team and is supplied also to be provided with indoor temperature controller 40 in warm sector 41, the range pipe 36 often building confession warm sector 41 of forming a team also is equipped with double conversion pump 37, range pipe 36 is provided with pressure sensor 4 38 after double conversion pump 37, form a team in each building and supply the return branch 42 in warm sector 41 is equipped with magnetic valve 5 43, return branch 42 is equipped with self-balanced differential pressure valve 44 after magnetic valve 5 43, return branch 42 is equipped with pressure reduction control valve 45 after self-balanced differential pressure valve 44, return branch 42 is provided with pressure sensor 5 46 after pressure reduction control valve 45, return branch 42 is connected with secondary returning water pipe 32 after pressure sensor 5 46, double conversion pump 37, pressure sensor 4 38, indoor temperature controller 40, magnetic valve 5 43, pressure reduction control valve 45 and pressure sensor 5 46 are connected with the control cabinet 39 of setting with line more respectively, each building is formed a team and is supplied the equal correspondence in warm sector 41 to be provided with a control cabinet 39, indoor temperature controller 40 is formed a team for the least favorable control point temperature in warm sector 41 or temperature between demarcating for the building that Detection & Controling are corresponding, arranging magnetic valve 5 43 forms a team for the loop in warm sector 41 for shutting down at double conversion pump 37 or close when having a power failure and cutting off this building, play a protective role.
Described secondary water-supply pipe 4 is connected with secondary returning water pipe 32 after connection range pipe 36, and secondary water-supply pipe 4 was also equipped with check-valves 4 30 before connecting secondary return pipe 32, secondary returning water pipe 32 is also equipped with filter 29 after being connected with secondary water-supply pipe 4, secondary returning water pipe 32 is equipped with circulating pump 31 after filter 29, secondary returning water pipe 32 is connected with the secondary side import of heat exchanger 3 after circulating pump 31, secondary returning water pipe 32 is before circulating pump 31, safety valve 27 and pressure sensor 3 28 is equiped with after filter 29, secondary returning water pipe 32 is before circulating pump 31, also be connected with pressure filling pipe 10 after filter 29, the other end of pressure filling pipe 10 is connected with primary water pipe 9, pressure filling pipe 10 is also equipped with moisturizing variable frequency pump 23 and check-valves 2 25, walk around moisturizing variable frequency pump 23 to be also respectively equipped with the direct-connected pipe 21 of bypass with check-valves 2 25 and to be connected with pressure filling pipe 10 with relief tube 22, and on the direct-connected pipe 21 of bypass, check-valves 3 26 is housed, relief tube 22 is equipped with magnetic valve 4 24, pressure filling pipe 10 is at moisturizing variable frequency pump 23, before the direct-connected pipe 21 of bypass and relief tube 22, check-valves 1 is also housed, pressure filling pipe 10 was also equipped with magnetic valve 1 before check-valves 1, pressure filling pipe 10 is after check-valves 1, also be provided with before moisturizing variable frequency pump 23 and be connected with the expansion tank 16 arranged communicating pipe 18, and on communicating pipe 18, magnetic valve 3 19 is housed, expansion tank 16 is connected with cold water filling pipe 15 and intakes, and on cold water filling pipe 15, magnetic valve 2 14 is housed, cold water filling pipe 15 is provided with water meter 13 after magnetic valve 2 14, cold water filling pipe 15 is equipped with demineralized water treating apparatus 12 after water meter 13, level sensor 17 is also provided with in expansion tank 16, level sensor 17 is for detecting expansion tank 16 water level.
Described three-way temperature control valve 2, temperature sensor 5, pressure sensor 1, pressure sensor 28, magnetic valve 1, demineralized water treating apparatus 12, magnetic valve 2 14, level sensor 17, magnetic valve 3 19, moisturizing variable frequency pump 23, magnetic valve 4 24, pressure sensor 3 28 and the respective cabling line 33 respectively of circulating pump 31 are connected with switch board 34, also communication interface 35 is separately provided with in switch board 34, described communication interface 35 connects for remote monitoring, also can be connected with upper machine communication.
Operation principle of the present invention is, the heat that feed pipe 1 is carried by heat exchanger 3 passes to the circulation of heat exchanger 3 secondary side automatically and continuously, and exported by secondary water-supply pipe 4, temperature sensor 5 detects secondary water-supply pipe 4 temperature, the three-way temperature control valve 2 be contained on a feed pipe 1 regulates its aperture adaptively according to temperature sensor 5, and make secondary water-supply pipe 4 temperature remain on the temperature value of setting, recirculated water flows through each range pipe 36 by secondary water-supply pipe 4, entering each building by each range pipe 36 again forms a team for warm sector 41, each building is formed a team and is supplied warm sector 41 to be back to secondary returning water pipe 32 by each return branch 42 again, secondary water-supply pipe 4 enters secondary returning water pipe 32 through check-valves 4 30, secondary returning water pipe 32 is taken out stains by filter 29, circulating pump 31 enters heat exchanger 3 after pressurizeing and heats and formed circulation, magnetic valve 1, magnetic valve 3 19 and magnetic valve 4 24 are all in closed condition in normal condition, the pressure sensor 3 28 be contained on secondary returning water pipe 32 detects circulating pump 31 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 3 28 detects circulating pump 31 intake pressure lower than the backwater constant voltage value set, magnetic valve 1 is opened, to be fetched water and to secondary returning water pipe 32 moisturizing from primary water pipe 9 by pressure filling pipe 10, now, pressure sensor 28 detects primary water pipe 9 pressure, when pressure sensor 28 detect primary water pipe 9 pressure higher than equal pressure sensor 3 28 set backwater constant voltage value time, moisturizing variable frequency pump 23 does not start, pressure filling pipe 10 directly carries out moisturizing to secondary returning water pipe 32 by the direct-connected pipe 21 of bypass by check-valves 3 26, when pressure sensor 28 detects the backwater constant voltage value that primary water pipe 9 pressure sets lower than pressure sensor 3 28, moisturizing variable frequency pump 23 starts, and the ftercompction of primary water pipe 9 pressure is superposed, make secondary returning water pipe 32 moisturizing and keep circulating pump 31 intake pressure to be stabilized in the backwater constant voltage value of setting, and the backwater constant voltage value of setting is stabilized at circulating pump 31 intake pressure, and when maintaining 30s ~ 60s, dormancy holding state is shut down and entered to moisturizing variable frequency pump 23, magnetic valve 1 cuts out, when pressure sensor 3 28 detect circulating pump 31 intake pressure higher than setting constant voltage value and reach setting super-pressure force value and above time, magnetic valve 3 19 and magnetic valve 4 24 are opened, secondary returning water pipe 32 is by the storage to expansion tank 16 that sluices relief tube 22 and communicating pipe 18, when pump 31 intake pressure to be recycled returns to the backwater constant voltage value of setting, magnetic valve 3 19 and magnetic valve 4 24 are closed, relief tube 22 with cut off communicating pipe 18, when pressure sensor 3 28 detect circulating pump 31 intake pressure lower than setting water deprivation stress value and following time, circulating pump 31 stoppage protection, when pump 31 intake pressure to be recycled returns to the backwater constant voltage value of setting, circulating pump 31 automatically starts and recovers normal and runs,
Meanwhile, each building is formed a team and is supplied warm sector 41 by range pipe 36 from secondary water-supply pipe 4 water intaking heating, be serially connected in the water outlet constant voltage value that the double conversion pump 37 on range pipe 36 sets relative to pressure sensor 4 38 and carry out frequency-changing pressure stabilizing operation, each building form a team for warm sector 41 backwater first by return branch 42 by magnetic valve 5 43 to after self-balanced differential pressure valve 44 acts on, carry out decompression by pressure reduction control valve 45 according to the backwater level pressure value that pressure sensor 5 46 sets again to enter secondary returning water pipe 32 and form circulation, pressure sensor 5 46 detects the pressure of return branch 42 after pressure reduction control valve 45, namely return branch 42 enters the pressure before secondary returning water pipe 32, and be provided with backwater level pressure value, the backwater level pressure value that pressure reduction control valve 45 sets according to pressure sensor 5 46 regulates its aperture adaptively, decompression, when pressure sensor 5 46 detects the pressure of return branch 42 after pressure reduction control valve 45 higher than the backwater level pressure value set, pressure reduction control valve 45 turns down its circulation, the pressure of return branch 42 after pressure reduction control valve 45 reduces, when pressure sensor 5 46 detects the pressure of return branch 42 after pressure reduction control valve 45 lower than the backwater level pressure value set, pressure reduction control valve 45 opens its circulation large, the pressure of return branch 42 after pressure reduction control valve 45 raises, thus make the pressure of return branch 42 after pressure reduction control valve 45 maintain in the backwater level pressure value of setting all the time, thus ensure that each building form a team for warm sector 41 pressure of return water balance and heating effect.
When first heating debugging, the circulation be made up of secondary water-supply pipe 4 and secondary returning water pipe 32, give water filling by expansion tank 16 and moisturizing variable frequency pump 23, magnetic valve 1 and magnetic valve 4 24 are closed, magnetic valve 2 14 is opened, and cold water filling pipe 15 is intake, and the water meter 13 be contained on cold water filling pipe 15 measures its inflow, while, is softened its influent quality by demineralized water treating apparatus 12, and magnetic valve 3 19 is opened, moisturizing variable frequency pump 23 is fetched water and pressure water injection in expansion tank 16.In the injecting process, the level sensor 17 be installed in expansion tank 16 detects expansion tank 16 water level, and be provided with high water level point, low water level point and lack of water water level point, when level sensor 17 detects the low water level point that expansion tank 16 water level decreasing to level sensor 17 sets and is following, moisturizing opened by magnetic valve 2 14, demineralized water treating apparatus 12 obtains electric operation, expansion tank 16 water level rises, when level sensor 17 detect expansion tank 16 water level be in setting high water level point and above time, magnetic valve 2 14 cuts out, demineralized water treating apparatus 12 dead electricity is shut down, when level sensor 17 detect expansion tank 16 water level be in setting lack of water water level point and following time, the moisturizing variable frequency pump 23 run is shut down, and report to the police, until expansion tank 16 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 23 returns to normal condition automatically, when pressure sensor 3 28 detects that circulating pump 31 intake pressure reaches the backwater constant voltage value of setting, magnetic valve 2 14 cuts out, demineralized water treating apparatus 12 dead electricity is shut down, three-way temperature control valve 2 is opened, heat exchanger 3 puts into operation, circulating pump 31 starts, and a feed pipe 1 is back to primary water pipe 9 by heat exchanger 3, secondary returning water pipe 9 moisturizing to be fetched water ftercompction from primary water pipe 9 by pressure filling pipe 10, voltage stabilizing, now, system formally enters the recurrent state that heats normally, and under normal heating recurrent state, magnetic valve 2 14 cuts out all the time, demineralized water treating apparatus 12 is in dead electricity stopped status.
Claims (4)
1. a building is formed a team with secondary pump frequency conversion heating system primarily of heat exchanger, circulating pump, double conversion pump, indoor temperature controller, building is formed a team for warm sector and pressure reduction control valve composition, the primary side interface of heat exchanger is connected with a feed pipe and primary water pipe respectively, the secondary side interface of heat exchanger is connected with secondary water-supply pipe and secondary returning water pipe respectively, a feed pipe is equipped with three-way temperature control valve, secondary water-supply pipe is provided with temperature sensor and pressure sensor one, it is characterized in that, secondary water-supply pipe is provided with range pipe and some buildings and forms a team and to be connected for warm sector after temperature sensor and pressure sensor one, building is formed a team and is supplied warm sector to be connected with secondary returning water pipe by return branch again, and each building is formed a team, district is supporting is respectively provided with respective range pipe and return branch in heating, building is formed a team and is supplied also to be provided with indoor temperature controller in warm sector, the range pipe often building confession warm sector of forming a team also is equipped with double conversion pump, range pipe is provided with pressure sensor four after double conversion pump, form a team in each building and supply the return branch in warm sector is equipped with magnetic valve five, return branch is equipped with self-balanced differential pressure valve after magnetic valve five, return branch is equipped with pressure reduction control valve after self-balanced differential pressure valve, return branch is provided with pressure sensor five after pressure reduction control valve.
2. building according to claim 1 is formed a team with secondary pump frequency conversion heating system, it is characterized in that, double conversion pump, pressure sensor four, indoor temperature controller, magnetic valve five, pressure reduction control valve and pressure sensor five are connected with the control cabinet of setting with line more respectively, and each building is formed a team and supplied the equal correspondence in warm sector to be provided with a control cabinet.
3. building according to claim 1 is formed a team with secondary pump frequency conversion heating system, it is characterized in that, described secondary water-supply pipe is connected with secondary returning water pipe after connection range pipe, and secondary water-supply pipe was also equipped with check-valves four before connecting secondary return pipe, secondary returning water pipe is also equipped with filter after being connected with secondary water-supply pipe, secondary returning water pipe is equipped with circulating pump after the filters, secondary returning water pipe is connected with the secondary side import of heat exchanger after circulating pump, secondary returning water pipe is before circulating pump, safety valve and pressure sensor three is equiped with after filter, secondary returning water pipe is before circulating pump, also be connected with pressure filling pipe after filter, the other end of pressure filling pipe is connected with primary water pipe, pressure filling pipe is also equipped with moisturizing variable frequency pump and check-valves two, walk around moisturizing variable frequency pump to be also respectively equipped with the direct-connected pipe of bypass with check-valves two and to be connected with pressure filling pipe with relief tube, and on the direct-connected pipe of bypass, check-valves three is housed, relief tube is equipped with magnetic valve four, pressure filling pipe is at moisturizing variable frequency pump, before the direct-connected pipe of bypass and relief tube, check-valves one is also housed, pressure filling pipe was also equipped with magnetic valve one before check-valves one.
4. building according to claim 3 is formed a team with secondary pump frequency conversion heating system, it is characterized in that, pressure filling pipe is also provided with and is connected with the expansion tank of setting communicating pipe after check-valves one, before moisturizing variable frequency pump, and magnetic valve three is housed on communicating pipe, expansion tank is connected with the water inlet of cold water filling pipe, and on cold water filling pipe, magnetic valve two is housed, cold water filling pipe is provided with water meter after magnetic valve two, cold water filling pipe is equipped with demineralized water treating apparatus after water meter, in expansion tank, be also provided with level sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410575354.9A CN104848290A (en) | 2014-10-25 | 2014-10-25 | Secondary pump frequency conversion heating system for building clusters |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410575354.9A CN104848290A (en) | 2014-10-25 | 2014-10-25 | Secondary pump frequency conversion heating system for building clusters |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739469A (en) * | 2016-03-18 | 2016-07-06 | 天津惠普数据中心设计工程有限公司 | Data center machine room freeze water secondary pump redundancy control system and method |
| CN107726581A (en) * | 2017-11-09 | 2018-02-23 | 华南理工大学建筑设计研究院 | A kind of subscriber access system for regional cooling and heating system |
| RU2658193C1 (en) * | 2017-08-24 | 2018-06-19 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Device for controlling heat consumption |
-
2014
- 2014-10-25 CN CN201410575354.9A patent/CN104848290A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105739469A (en) * | 2016-03-18 | 2016-07-06 | 天津惠普数据中心设计工程有限公司 | Data center machine room freeze water secondary pump redundancy control system and method |
| RU2658193C1 (en) * | 2017-08-24 | 2018-06-19 | Федеральное государственное автономное образовательное учреждение высшего образования "Национальный исследовательский Томский политехнический университет" | Device for controlling heat consumption |
| CN107726581A (en) * | 2017-11-09 | 2018-02-23 | 华南理工大学建筑设计研究院 | A kind of subscriber access system for regional cooling and heating system |
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Application publication date: 20150819 |
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| WD01 | Invention patent application deemed withdrawn after publication |