CN104864468A - Non-negative pressure pipe network pressure-superposed type heat storage hot water heat exchange unit - Google Patents
Non-negative pressure pipe network pressure-superposed type heat storage hot water heat exchange unit Download PDFInfo
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- CN104864468A CN104864468A CN201410685162.3A CN201410685162A CN104864468A CN 104864468 A CN104864468 A CN 104864468A CN 201410685162 A CN201410685162 A CN 201410685162A CN 104864468 A CN104864468 A CN 104864468A
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Abstract
The invention discloses a non-negative pressure pipe network pressure-superposed type heat storage hot water heat exchange unit. The unit mainly comprises a heat storage type floating coil pipe heat exchanger, a non-negative pressure booster tank, a hot water circulating pump and a control cabinet, wherein the hot water circulating pump is connected to a hot water return pipe connected with the heat storage floating coil pipe heat exchanger, a water replenishing pressure stabilizing pipe is connected behind the hot water circulating pup on the hot water return pipe and further connected with an outlet of the non-negative pressure booster tank, and an inlet of the non-negative pressure booster tank is connected in series with a tap water inlet pipe. The non-negative pressure pipe pressure-superposed type heat storage hot water heat exchange unit has the benefits that the non-negative pressure booster tank is directly connected in series to the tap water inlet pipe to perform non-negative pressure pipe network pressurized and constant-pressure water replenishing on the heat storage floating coil pipe heat exchanger, the unit has the remarkable characteristics of energy saving, land saving and cost saving, the whole system is fully equipped, and the unit has the advantages of constant temperature of hot water, stable water supply pressure, hygienic outlet water quality and the like and has good practical value and excellent popularization and application prospects.
Description
Technical field
The present invention relates to Hot water units technical field, specifically a kind of without the pipe network pressure-superposed heat accumulation hot water heat-exchange unit of negative pressure.
Background technology
Along with the raising of Urbanization Construction and people's living standard, to be more and more extensive to the application of hot water supply system, and more and more higher requirement be it is also proposed to hot-water heating system, hot-water heating system is energy-conservation, health and reliable and stable operation will define the problem that society pays close attention to.
Summary of the invention
The object of the present invention is to provide a kind of energy-conservation, health, economic without the pipe network pressure-superposed heat accumulation hot water heat-exchange unit of negative pressure.
The technical solution adopted for the present invention to solve the technical problems is: without the pipe network pressure-superposed heat accumulation hot water heat-exchange unit of negative pressure primarily of heat accumulating type floating coiler heat exhanger, without negative pressure booster tank, hot water circulating pump and switch board composition, an import is respectively equipped with in the bottom of heat accumulating type floating coiler heat exhanger, once outlet and secondary import, heat accumulating type floating coiler heat exhanger top is provided with secondary outlet, and heat accumulating type floating coiler heat exhanger import is connected with heating agent feed pipe and heating agent return pipe respectively with once exporting, the secondary import of heat accumulating type floating coiler heat exhanger is connected with hot water return pipe and hot water feeding pipe respectively with secondary outlet, heat accumulating type floating coiler heat exhanger is also provided with temperature control transmitter, and safety valve is housed, heating agent feed pipe is equipped with temperature control valve, hot water return pipe is equipped with filter, hot water return pipe is provided with dosing mouth before the filter, hot water return pipe is equipped with hot water circulating pump after the filters, hot water return pipe is before hot water circulating pump, temperature sensor one and pressure sensor two is also provided with after filter, and expansion drum is housed, hot water return pipe is also connected to moisturizing voltage-stabiliser tube after hot water circulating pump, and be provided with pressure sensor one, and moisturizing voltage-stabiliser tube is connected with exporting without negative pressure booster tank again, moisturizing voltage-stabiliser tube is also equipped with check-valves, be connected in series with running water water inlet pipe without the import of negative pressure booster tank, running water water inlet pipe is equipped with backflow preventer, running water water inlet pipe is equipped with electronic hydrotreater after backflow preventer, describedly be equiped with immersible pump and level sensor without negative pressure booster tank inside, immersible pump water outlet is connected to pipeline with exporting without negative pressure booster tank and is connected, without negative pressure booster tank top, vacuum suppresser is housed, without negative pressure booster tank being also fixedly installed with or without negative pressure booster control cabinet, without negative pressure booster control cabinet respectively with described immersible pump, level sensor, electronic hydrotreater is connected with vacuum suppresser wiring, the described hot water feeding pipe be connected with heat accumulating type floating coiler heat exhanger is equipped with conductivity gauge, hot water feeding pipe is also equipped with silver ion generator after conductivity gauge, hot water feeding pipe is also provided with pressure sensor three and temperature sensor two, and automatic exhaust steam valve is housed.Described hot water circulating pump, temperature control transmitter, temperature control valve, pressure sensor one, temperature sensor one, pressure sensor two, temperature sensor two, pressure sensor three, silver ion generator and conductivity gauge are connected with described switch board wiring respectively, switch board is also connected without the wiring of negative pressure booster control cabinet with described, GPRS transceiver module is also equiped with in switch board, described GPRS transceiver module mainly carries out real-time radio transmission and reception to relevant data signal, is convenient to realize wireless remote monitering.
Operation principle of the present invention is, heat accumulating type floating coiler heat exhanger for the preparation of with storage domestic hot-water, and to be directly serially connected in running water water inlet pipe without negative pressure booster tank be the moisturizing of heat accumulating type floating coiler heat exhanger, electronic hydrotreater carries out electronic anti-scaling process to entering without the water yield in negative pressure booster tank, frequency-changing pressure stabilizing operation is carried out relative to pressure sensor one according to the default constant voltage value needed for system without the immersible pump in negative pressure booster tank, the pressure sensor one be contained on hot water return pipe detects the intake pressure of heat accumulating type floating coiler heat exhanger, when the intake pressure of heat accumulating type floating coiler heat exhanger being detected lower than default constant voltage value needed for system, immersible pump will improve rotating speed to increase rate of water make-up, the intake pressure of heat accumulating type floating coiler heat exhanger raises, otherwise immersible pump reduces rotating speed, thus in the default constant voltage value that the intake pressure of heat accumulating type floating coiler heat exhanger is maintained needed for system, and immersible pump can reach energy-saving effect by making full use of running water water inlet pipe pressure without negative pressure booster tank, when immersible pump rotating speed is lower than the minimum speed value of systemic presupposition, and when maintaining 30s ~ 60s, immersible pump is by autostop and enter dormancy holding state, when the intake pressure of heat accumulating type floating coiler heat exhanger being detected lower than default constant voltage value needed for system, immersible pump runs automatically waking and again drop into frequency-changing pressure stabilizing up, so repeatedly, realize the present invention in effect that is energy-conservation without immersible pump shutdown during rate of water make-up and that increase the service life, and be totally-enclosed pressure resistant vessel without negative pressure booster tank when full water, be contained in and detect its water level without the level sensor in negative pressure booster tank, when the water yield of the inflow without negative pressure booster tank not as good as immersible pump, water level without negative pressure booster tank will decline, be contained in and fill into air without the vacuum suppresser on negative pressure booster tank by automatically opening, to eliminate without the negative pressure in negative pressure booster tank, immersible pump still maintenance runs, when without negative pressure booster tank water level decreasing to systemic presupposition lack of water water level point and following time, immersible pump is by stoppage protection, treat without negative pressure booster tank water level rezime, and during full water, vacuum suppresser is closed automatically, immersible pump also will be automatically restored to normal operating conditions, thus realize the present invention by being directly connected in series the implementation of running water water inlet pipe without negative pressure booster tank without negative pressure moisturizing, reach economic joint money, save land effect, meanwhile, be contained in the hot water temperature in the temperature control transmitters sense heat accumulating type floating coiler heat exhanger on heat accumulating type floating coiler heat exhanger, when the water outlet constant temperature angle value of the hot water temperature in heat accumulating type floating coiler heat exhanger lower than systemic presupposition being detected, the temperature control valve be contained on heating agent feed pipe will tune up its aperture adaptively, the flow making heating agent feed pipe enter heat accumulating type floating coiler heat exhanger increases, hot water temperature in heat accumulating type floating coiler heat exhanger will increase, otherwise then turn temperature control valve aperture down and reduce heating agent feed pipe flow, thus make the hot water temperature in heat accumulating type floating coiler heat exhanger maintain in the water outlet constant temperature angle value of systemic presupposition all the time, and the hot water in heat accumulating type floating coiler heat exhanger will be exported by hot water feeding pipe, then sterilizing process is given through conductivity gauge detection hot water salinity and silver ion generator successively, the hot water that hot water feeding pipe is exported reaches pressure stability, 24 hours round-the-clock uninterrupted effects of temperature constant and hygienic quality, thus meet the needs that user supplies hot water, the temperature sensor one be simultaneously contained on hot water return pipe detects hot water return pipe temperature, when the guarantee temperature value of hot water return pipe temperature lower than systemic presupposition being detected, hot water circuit pump startup, water in hot water return pipe will enter heat accumulating type floating coiler heat exhanger and form circulation, hot water return pipe temperature raises, when the energy-saving warm angle value of hot water return pipe temperature higher than systemic presupposition being detected, hot water circulating pump is shut down, so repeatedly, realize hot water of the present invention supply energy-conservation, water-saving result, the guarantee temperature value of described systemic presupposition is preferably lower than the water outlet constant temperature angle value 4 DEG C ~ 8 DEG C of systemic presupposition, the energy-saving warm angle value of described systemic presupposition is preferably lower than the water outlet constant temperature angle value 2 DEG C ~ 4 DEG C of systemic presupposition, equally, be contained in pressure sensor two on hot water return pipe for detect hot water circuit pump suction supply pressure and protection hot water circulating pump intake pressure be in systemic presupposition anhydrous force value and following time autostop, intake pressure be in systemic presupposition have hydraulic pressure force value and above time Auto Power On automatic control and scheduling co-design.
Describedly pressure signal and water level signal detected without negative pressure booster control cabinet according to described pressure sensor one and level sensor, respectively Automatic Control and protection are carried out to immersible pump and vacuum suppresser, also automatic distribution and control is given to described electronic hydrotreater without negative pressure booster control cabinet, described switch board is then according to described temperature control transmitter, temperature sensor one, temperature sensor two, each related temperature signals that pressure sensor two and pressure sensor three detect and pressure signal, respectively Automatic Control and protection are carried out to temperature control valve and hot water circulating pump, switch board also gives automatic distribution and control respectively to described silver ion generator and conductivity gauge, and switch board also with described without negative pressure booster control cabinet connecting communication, switch board also receives and sends relevant wireless data signal by GPRS transceiver module in GPRS mode simultaneously, realize the unattended remote wireless monitoring of the present invention and management.
The invention has the beneficial effects as follows, the present invention utilizes directly to be serially connected on running water water inlet pipe without negative pressure booster tank and carries out without negative pressure pipe network pressurizing, constant pressure making up water to heat accumulating type floating coiler heat exhanger, there is distinguishing feature that is energy-conservation, the money that saves land, saves, and whole system is comprehensive, have the advantages such as hot water temperature is constant, pressure of supply water stable, effluent quality health concurrently, and achieve unattended Automatic Control, improve managerial skills, thus there is good practical value and good popularizing application prospect.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
In figure, 1, heat accumulating type floating coiler heat exhanger, 2, without negative pressure booster tank, 3, hot water circulating pump, 4, switch board, 5, temperature control transmitter, 6, safety valve, 7, heating agent feed pipe, 8, temperature control valve, 9, heating agent return pipe, 10, running water water inlet pipe, 11, backflow preventer, 12, electronic hydrotreater, 13, immersible pump, 14, without negative pressure booster control cabinet, 15, vacuum suppresser, 16, level sensor, 17, moisturizing voltage-stabiliser tube, 18, check-valves, 19, pressure sensor one, 20, hot water return pipe, 21, dosing mouth, 22, filter, 23, expansion drum, 24, temperature sensor one, 25, pressure sensor two, 26, GPRS transceiver module, 27, hot water feeding pipe, 28, temperature sensor two, 29, pressure sensor three, 30, silver ion generator, 31, conductivity gauge, 32, automatic exhaust steam valve.
Detailed description of the invention
Be described in detail below without the pipe network pressure-superposed heat accumulation hot water heat-exchange unit of negative pressure of the present invention with regard to accompanying drawing 1 below.
As shown in Figure 1, of the present invention without the pipe network pressure-superposed heat accumulation hot water heat-exchange unit of negative pressure primarily of heat accumulating type floating coiler heat exhanger 1, without negative pressure booster tank 2, hot water circulating pump 3 and switch board 4 form, an import is respectively equipped with in the bottom of heat accumulating type floating coiler heat exhanger 1, once outlet and secondary import, heat accumulating type floating coiler heat exhanger 1 top is provided with secondary outlet, and heat accumulating type floating coiler heat exhanger 1 import is connected with heating agent feed pipe 7 and heating agent return pipe 9 respectively with once exporting, the secondary import of heat accumulating type floating coiler heat exhanger 1 is connected with hot water return pipe 20 and hot water feeding pipe 27 respectively with secondary outlet, heat accumulating type floating coiler heat exhanger 1 is also provided with temperature control transmitter 5, and safety valve 6 is housed, heating agent feed pipe 7 is equipped with temperature control valve 8, hot water return pipe 20 is equipped with filter 22, hot water return pipe 20 was provided with dosing mouth 21 before filter 22, hot water return pipe 20 is equipped with hot water circulating pump 3 after filter 22, hot water return pipe 20 is before hot water circulating pump 3, temperature sensor 1 and pressure sensor 2 25 is also provided with after filter 22, and expansion drum 23 is housed, hot water return pipe 20 is also connected to moisturizing voltage-stabiliser tube 17 after hot water circulating pump 3, and be provided with pressure sensor 1, and moisturizing voltage-stabiliser tube 17 is connected with exporting without negative pressure booster tank 2 again, moisturizing voltage-stabiliser tube 17 is also equipped with check-valves 18, be connected in series with running water water inlet pipe 10 without negative pressure booster tank 2 import, running water water inlet pipe 10 is equipped with backflow preventer 11, running water water inlet pipe 10 is equipped with electronic hydrotreater 12 after backflow preventer 11, describedly be equiped with immersible pump 13 and level sensor 16 without negative pressure booster tank 2 inside, immersible pump 13 water outlet is connected to pipeline with exporting without negative pressure booster tank 2 and is connected, without negative pressure booster tank 2 top, vacuum suppresser 15 is housed, without negative pressure booster tank 15 being also fixedly installed with or without negative pressure booster control cabinet 14, without negative pressure booster control cabinet 14 respectively with described immersible pump 13, level sensor 16, electronic hydrotreater 12 is connected with vacuum suppresser 15 wiring, the described hot water feeding pipe 27 be connected with heat accumulating type floating coiler heat exhanger 1 is equipped with conductivity gauge 31, hot water feeding pipe 27 is also equipped with silver ion generator 30 after conductivity gauge 31, hot water feeding pipe 27 is also provided with pressure sensor 3 29 and temperature sensor 2 28, and automatic exhaust steam valve 31 is housed.Described hot water circulating pump 3, temperature control transmitter 5, temperature control valve 8, pressure sensor 1, temperature sensor 1, pressure sensor 2 25, temperature sensor 2 28, pressure sensor 3 29, silver ion generator 30 and conductivity gauge 31 are connected with described switch board 4 wiring respectively, switch board 4 is also connected without negative pressure booster control cabinet 14 wiring with described, GPRS transceiver module 26 is also equiped with in switch board 4, described GPRS transceiver module 26 mainly carries out real-time radio transmission and reception to relevant data signal, is convenient to realize wireless remote monitering.
Operation principle of the present invention is, heat accumulating type floating coiler heat exhanger 1 for the preparation of with storage domestic hot-water, and be directly serially connected in running water water inlet pipe 10 for heat accumulating type floating coiler heat exhanger 1 moisturizing without negative pressure booster tank 2, electronic hydrotreater 12 carries out electronic anti-scaling process to entering without the water yield in negative pressure booster tank 2, frequency-changing pressure stabilizing operation is carried out relative to pressure sensor 1 according to the default constant voltage value needed for system without the immersible pump 13 in negative pressure booster tank 2, the pressure sensor 1 be contained on hot water return pipe 20 detects the intake pressure of heat accumulating type floating coiler heat exhanger 1, when the intake pressure of heat accumulating type floating coiler heat exhanger 1 being detected lower than default constant voltage value needed for system, immersible pump 13 will improve rotating speed to increase rate of water make-up, the intake pressure of heat accumulating type floating coiler heat exhanger 1 raises, otherwise immersible pump 13 reduces rotating speed, thus in the default constant voltage value that the intake pressure of heat accumulating type floating coiler heat exhanger 1 is maintained needed for system, and immersible pump 13 can reach energy-saving effect by making full use of running water water inlet pipe 10 pressure without negative pressure booster tank 2, when immersible pump 13 rotating speed is lower than the minimum speed value of systemic presupposition, and when maintaining 30s ~ 60s, immersible pump 13 is by autostop and enter dormancy holding state, when the intake pressure of heat accumulating type floating coiler heat exhanger 1 being detected lower than default constant voltage value needed for system, immersible pump 13 runs automatically waking and again drop into frequency-changing pressure stabilizing up, so repeatedly, realize the present invention shutting down energy-conservation and effect that is that increase the service life without immersible pump during rate of water make-up 13, and be totally-enclosed pressure resistant vessel without negative pressure booster tank 2 when full water, be contained in and detect its water level without the level sensor 16 in negative pressure booster tank 2, when the water yield of the inflow without negative pressure booster tank 2 not as good as immersible pump 13, water level without negative pressure booster tank 2 will decline, be contained in and fill into air without the vacuum suppresser 15 on negative pressure booster tank 2 by automatically opening, to eliminate without the negative pressure in negative pressure booster tank 2, immersible pump 13 still maintenance runs, when without negative pressure booster tank 2 water level decreasing to systemic presupposition lack of water water level point and following time, immersible pump 13 is by stoppage protection, treat without negative pressure booster tank 2 water level rezime, and during full water, vacuum suppresser 15 is closed automatically, immersible pump 13 also will be automatically restored to normal operating conditions, thus realize the present invention by being directly connected in series the implementation of running water water inlet pipe 10 without negative pressure moisturizing without negative pressure booster tank 2, reach economic joint money, save land effect, meanwhile, the temperature control transmitter 5 be contained on heat accumulating type floating coiler heat exhanger 1 detects the hot water temperature in heat accumulating type floating coiler heat exhanger 1, when the water outlet constant temperature angle value of the hot water temperature in heat accumulating type floating coiler heat exhanger 1 lower than systemic presupposition being detected, the temperature control valve 8 be contained on heating agent feed pipe 7 will tune up its aperture adaptively, the flow making heating agent feed pipe 7 enter heat accumulating type floating coiler heat exhanger 1 increases, hot water temperature in heat accumulating type floating coiler heat exhanger 1 will increase, otherwise then turn temperature control valve 6 aperture down and reduce heating agent feed pipe 7 flow, thus make the hot water temperature in heat accumulating type floating coiler heat exhanger 1 maintain in the water outlet constant temperature angle value of systemic presupposition all the time, and the hot water in heat accumulating type floating coiler heat exhanger 1 will be exported by hot water feeding pipe 27, then hot water salinity is detected and silver ion generator 30 gives sterilizing process through conductivity gauge 31 successively, the hot water that hot water feeding pipe 27 is exported reaches pressure stability, 24 hours round-the-clock uninterrupted effects of temperature constant and hygienic quality, thus meet the needs that user supplies hot water, the temperature sensor 1 be simultaneously contained on hot water return pipe 20 detects hot water return pipe 20 temperature, when the guarantee temperature value of hot water return pipe 20 temperature lower than systemic presupposition being detected, hot water circulating pump 3 starts, water in hot water return pipe 20 will enter heat accumulating type floating coiler heat exhanger 1 and form circulation, hot water return pipe 20 temperature raises, when the energy-saving warm angle value of hot water return pipe 20 temperature higher than systemic presupposition being detected, hot water circulating pump 3 is shut down, so repeatedly, realize hot water of the present invention supply energy-conservation, water-saving result, the guarantee temperature value of described systemic presupposition is preferably lower than the water outlet constant temperature angle value 4 DEG C ~ 8 DEG C of systemic presupposition, the energy-saving warm angle value of described systemic presupposition is preferably lower than the water outlet constant temperature angle value 2 DEG C ~ 4 DEG C of systemic presupposition, be contained in pressure sensor 2 25 on hot water return pipe 20 for detect hot water circulating pump 3 intake pressure and protection hot water circulating pump 3 intake pressure be in systemic presupposition anhydrous force value and following time autostop, intake pressure be in systemic presupposition have hydraulic pressure force value and above time Auto Power On automatic control and scheduling co-design.
Describedly pressure signal and water level signal detected without negative pressure booster control cabinet 14 according to described pressure sensor 1 and level sensor 16, respectively Automatic Control and protection are carried out to immersible pump 13 and vacuum suppresser 15, also automatic distribution and control is given to described electronic hydrotreater 12 without negative pressure booster control cabinet 14, temperature control transmitter 5 described in described switch board 4 foundations, temperature sensor 1, temperature sensor 2 28, each related temperature signals that pressure sensor 2 25 and pressure sensor 3 29 detect and pressure signal, respectively Automatic Control and protection are carried out to temperature control valve 8 and hot water circulating pump 3, switch board 4 also gives automatic distribution and control respectively to described silver ion generator 30 and conductivity gauge 31, and switch board 4 also with described without negative pressure booster control cabinet 14 connecting communication, switch board 4 also receives and sends relevant wireless data signal by GPRS transceiver module 26 in GPRS mode simultaneously, realize the unattended remote wireless monitoring of the present invention and management.
Claims (3)
1. one kind without the pipe network pressure-superposed heat accumulation hot water heat-exchange unit of negative pressure primarily of heat accumulating type floating coiler heat exhanger, without negative pressure booster tank, hot water circulating pump and switch board composition, an import of heat accumulating type floating coiler heat exhanger is connected with heating agent feed pipe and heating agent return pipe respectively with once exporting, the secondary import of heat accumulating type floating coiler heat exhanger is connected with hot water return pipe and hot water feeding pipe respectively with secondary outlet, heat accumulating type floating coiler heat exhanger is also provided with temperature control transmitter, heating agent feed pipe is equipped with temperature control valve, hot water return pipe is equipped with filter, hot water return pipe is equipped with hot water circulating pump after the filters, hot water return pipe is before hot water circulating pump, temperature sensor one and pressure sensor two is also provided with after filter, it is characterized in that, hot water return pipe is also connected to moisturizing voltage-stabiliser tube after hot water circulating pump, and be provided with pressure sensor one, and moisturizing voltage-stabiliser tube is connected with exporting without negative pressure booster tank again, moisturizing voltage-stabiliser tube is also equipped with check-valves, be connected in series with running water water inlet pipe without the import of negative pressure booster tank, running water water inlet pipe is equipped with backflow preventer, running water water inlet pipe is equipped with electronic hydrotreater after backflow preventer, hot water feeding pipe is equipped with conductivity gauge, hot water feeding pipe is also equipped with silver ion generator after conductivity gauge, hot water feeding pipe is also provided with pressure sensor three and temperature sensor two.
2. according to claim 1 without the pipe network pressure-superposed heat accumulation hot water heat-exchange unit of negative pressure, it is characterized in that, immersible pump and level sensor is being equiped with without negative pressure booster tank inside, immersible pump water outlet is connected to pipeline with exporting without negative pressure booster tank and is connected, without negative pressure booster tank top, vacuum suppresser is housed, without negative pressure booster tank being also fixedly installed with or without negative pressure booster control cabinet, be connected with described immersible pump, level sensor, electronic hydrotreater and vacuum suppresser wiring respectively without negative pressure booster control cabinet, be also connected with switch board wiring without negative pressure booster control cabinet.
3. according to claim 1 without the pipe network pressure-superposed heat accumulation hot water heat-exchange unit of negative pressure, in switch board, be also equiped with GPRS transceiver module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685162.3A CN104864468A (en) | 2014-11-25 | 2014-11-25 | Non-negative pressure pipe network pressure-superposed type heat storage hot water heat exchange unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410685162.3A CN104864468A (en) | 2014-11-25 | 2014-11-25 | Non-negative pressure pipe network pressure-superposed type heat storage hot water heat exchange unit |
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| Publication Number | Publication Date |
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| CN104864468A true CN104864468A (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410685162.3A Pending CN104864468A (en) | 2014-11-25 | 2014-11-25 | Non-negative pressure pipe network pressure-superposed type heat storage hot water heat exchange unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839696A (en) * | 2016-05-23 | 2016-08-10 | 青岛良邦供水设备有限公司 | Multifunctional non-negative pressure water supply equipment |
-
2014
- 2014-11-25 CN CN201410685162.3A patent/CN104864468A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105839696A (en) * | 2016-05-23 | 2016-08-10 | 青岛良邦供水设备有限公司 | Multifunctional non-negative pressure water supply equipment |
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Application publication date: 20150826 |
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