A kind of system of the publilc baths waste water reuse with secondary recovery system
Technical field
The utility model belongs to waste heat utilization technology field, relates to a kind of device utilizing publilc baths waste water residual heat, is specifically related to a kind of heat pump recycling publilc baths waste water residual heat.
Background technology
Existing bathing mode is all that running water is used after heater is heated to about 42 DEG C, in shower process, the spent hot water of about 35 DEG C is fed directly in waste pipe and drains, spent hot water's temperature through shower process is relatively high, and a lot of heats is not utilized effectively, and has wasted.For the place of long-time hot-water supply, if adopt the heater mode of heating continued, no matter be electrical heating or coal heating, a large amount of energy will be needed, cause great waste.In addition, the thermal wastewater temperature sometimes after a heat exchange is also very high, if drained by the waste water after a heat exchange, is also the one waste of heat.
Also have some waste heat utilization devices in the market, but these heat-exchanger rigs some just carry out a heat exchange by heat exchanger after namely complete heat transfer process, some device is when heat exchange, and heat exchange efficiency is low, and the time of heat exchanger work is long, weak effect.Meanwhile, in order to meet the needs of bathing, often need to be equipped with bulky attemperater, floor space is large, and length consuming time is very impracticable.
In addition, waste heat utilization device kind is in the market few, function singleness, simple heat-exchanger rig mostly, cause in heat-exchanger rig, not having thermal wastewater to circulate when running into emergency case, attemperater namely can not for bathroom supply needed for bath water, due to not have meet an urgent need auxiliary equipment, whole loop heating system can not normally be run, and often causes bad impact to bathroom.
Utility model content
The utility model overcomes the deficiency that prior art exists, and aim to provide a kind of compact conformation, heat exchange efficiency is high, can realize automatic control, and with the publilc baths waste water residual heat recycling system of ancillary heating equipment.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of system of the publilc baths waste water reuse with secondary recovery system, comprise bath heating system and bathing pool heating system, the heat-exchanger rig that described bath heating system comprises wastewater disposal basin, attemperater and is connected between wastewater disposal basin and attemperater, the thermal wastewater of discharging in wastewater disposal basin and the clear water of attemperater realize efficient heat exchange in heat-exchanger rig, reduced by the thermal wastewater temperature of heat-exchanger rig, raised by the clear water temperature of heat-exchanger rig.
Wherein, heat-exchanger rig comprises one-level heat-exchange system and secondary heat exchange system, one-level heat-exchange system is made up of one or more heat exchanger, multiple heat exchanger is connected successively, waste water tunnel and water-dilution channel is divided in heat exchanger, thermal wastewater high for temperature to be delivered in the waste water tunnel in heat exchanger by the thermal wastewater in wastewater disposal basin by pump group, clear water low for temperature to be delivered in the water-dilution channel in heat exchanger by the water of discharging in running water pipe by pump group, thermal wastewater and clear water realize a heat exchange in heat exchanger, the temperature of thermal wastewater reduces, the temperature of clear water raises, multiple heat exchanger can increase overall heat exchange area, the quantity of concrete heat exchanger is determined according to the size at outdoor bathing place and actual needs.
Multiple source pump is provided with in secondary heat exchange system, multiple source pump can carry out parallel connection or series connection according to actual needs, concrete selection mode can according to overall structure and heat exchange need determine, in source pump, realize secondary heat exchange by the thermal wastewater of one-level heat-exchange system and clear water, improve the utilization rate of thermal wastewater heat.Insulation unit is also provided with in secondary heat exchange system, when clear water is after the heat exchange of a heat-exchange system and source pump, clear water temperature does not reach temperature required, namely insulation unit is started, insulation unit heats the clear water in attemperater, the temperature entered before insulation unit due to the water in attemperater is just higher, general and rated temperature is more or less the same, therefore the heat exchange efficiency being incubated unit is inevitable lower than source pump, under normal circumstances, the negligible amounts of insulation unit, the low unit of heat exchange efficiency can be reduced like this use, reduce the waste of the energy, if attemperater volume is larger, quantity by the power and increase insulation unit that increase insulation unit solves.
Wherein, water system comprises tap water tank and tap water pipe, tap water pipe is arranged two delivery ports, a delivery port is connected with water service pipe, meet domestic water, another delivery port is connected with the water inlet of tap water tank by electric butterfly valve, is controlled logical the closing of tap water tank inlet channel by electric butterfly valve, be provided with liquid level gauge in tap water tank, realized the automatic control of tap water tank by liquid level gauge and electric butterfly valve.The delivery port of tap water tank is connected with the clear water entrance of heat exchanger by pipeline, pump group and magnetic valve is connected with between described tap water tank and heat exchanger, running water in tap water tank is delivered in heat exchanger by pump group, and magnetic valve realizes the automatic control of tap water tank outlet pipe.
Wherein, bath heating system is also connected with secondary recovery system, secondary recovery system comprises secondary recovery pipeline, one end of secondary recovery pipeline is connected with the wastewater outlet of insulation unit, the other end is also connected with the waterwater entrance of wastewater disposal basin, secondary recovery pipeline is connected with electric butterfly valve, is connected by pump group between electric butterfly valve with wastewater disposal basin.When being incubated unit work, thermal wastewater is by after insulation unit, temperature declines few, and return water temperature is higher, can also continue to utilize, at this moment, close cast iron main sewer, opened by electric butterfly valve, this part waste water continues to turn back to secondary in wastewater disposal basin and utilizes, remaining waste water heat is continued to utilize, further economize energy.
Wherein, bathing pool heating system comprises bathing pool and is connected to the bathing pool attemperator between bathing pool and attemperater, and bathing pool attemperator is for keeping the clear water temperature constant in bathing pool.Bathing pool attemperator comprises multiple bathing pool heating unit, the waterwater entrance that wastewater outlet and the bathing pool of wastewater disposal basin heat unit is connected by pipeline, be back in wastewater disposal basin by the waste water after bathing pool heating set heat exchange, the clear water entrance that the clear water output of bathing pool heats unit by pipeline and multiple bathing pool is connected, and multiple bathing pool heating clear water output of unit is connected with the clear water entrance of bathing pool.Because the clear water temperature in bathing pool is higher, waste water temperature after bathing pool heating unit declines little, can return in wastewater disposal basin and recycle, by bathing pool heating unit, circulating-heating is carried out to the clear water in bathing pool, the temperature constant in bathing pool can be ensured, ensure the comfort level of guest in bathing pool, and utilize waste water to heat, waste water is recycled, economize energy, very practical.
Wherein, according to actual needs, as preferably, heat exchanger can be the combination of one or more in plate type heat exchanger, movable tube sheets heat exchanger, fixed tube-sheet exchanger and U-tube sheet heat exchanger.
Wherein, hair filter and sand filtration cylinder is connected with by pipeline between the wastewater outlet of wastewater disposal basin and the first heat-exchange system, hair filter is placed between the wastewater outlet of wastewater disposal basin and sand filtration cylinder, thermal wastewater was filtered by hair filter before entering sand filtration cylinder, filtered out by hair in thermal wastewater, hair can blocking pipe and the control element be connected on pipeline.And, when the cleaning in later stage, hair is than common mud and bur all difficulty cleanings, after hair filter has been installed, as long as periodic cleaning hair filter is all right, the cleaning cycle of pipeline and control element can extend to about 1 year, and, pipeline also can not block in cleaning cycle, very practical.
Wherein, the structure in source pump is identical with the structure in insulation unit.The structure of source pump is: comprise compressor, condenser and evaporimeter, evaporimeter, condenser and evaporimeter form a closed circulating heat exchange system, after liquid refrigerant in thermal wastewater and evaporimeter carries out heat exchange, cold-producing medium is by entering into condenser after compressor compresses, heat exchange is carried out within the condenser with clear water, the temperature of thermal wastewater is reduced further and is discharged by cast iron main sewer, and the temperature of clear water is raised further and is pumped in attemperater by pump group.When needed, start insulation unit, the operation principle of insulation unit is identical with the operation principle of source pump, does not repeat them here.
Wherein, the structure of bathing pool heating unit is: comprise compressor, condenser and evaporimeter, evaporimeter, condenser and evaporimeter form a closed circulation heat-transmission system, after liquid refrigerant in thermal wastewater and evaporimeter carries out heat exchange, cold-producing medium is by entering into condenser after compressor compresses, heat exchange is carried out within the condenser with the clear water in bathing pool, the temperature of thermal wastewater reduces further and by the draining of cast iron main sewer, the temperature of clear water is raised further and is pumped in bathing pool by pump group.
Wherein, the waterwater entrance place of insulation unit is connected with magnetic valve by pipeline, the thermal wastewater passage of insulation unit is entered by solenoid control, insulation unit is not long-term unlatching, but the temperature in attemperater does not reach just unlatching when requiring, therefore, passes through solenoid control, can economize energy, automatic control can be realized again.
Wherein, the clear water entrance of attemperater and clear water output are provided with thermal contacts, detect the leaving water temperature of clear water by thermal contacts and enter coolant-temperature gage, leaving water temperature with enter coolant-temperature gage and all can feed back to control system, both Data Detection was facilitated, automatic control can be realized again, reduce manual operation, practicality simple to operate.
The utility model compared with prior art has following beneficial effect:
One, the utility model structure is simple, and compact conformation, is combined by one-level heat-exchange system and secondary heat exchange system, high to the utilization ratio of thermal wastewater, and clear water quick heating, the volume of attemperater is little.
Two, the utility model entirety is automatically control, and manual operation is few, very practical.
Three, bath heating system and bathing pool heating system are combined, Appropriate application thermal wastewater heats two systems, very practical.
Four, by adding secondary recovery system in bath heating system, the heat underused utilizes by secondary recovery system again, reaches more high efficiency heat transfer effect, further economize energy.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is system diagram of the present utility model.
In figure: 1 is wastewater disposal basin, 2 is attemperater, 3 is one-level heat-exchange system, 4 is secondary heat exchange system, 5 is heat exchanger, 6 is source pump, 7 is insulation unit, 8 is cast iron main sewer, 9 is hair filter, 10 is sand filtration cylinder, 11 is magnetic valve, 12 is thermal contacts, 13 is tap water tank, 14 is tap water pipe, 15 is water service pipe, 16 is cleaning water tank, 17 is self-cleaning connector, 18 is electric heater unit, 19 is electric heater, 20 is bathing pool heating unit, 21 is bathing pool, 22 is bathing pool attemperator, 23 is secondary recovery system, 24 is secondary recovery pipeline.
Detailed description of the invention
Be described in further detail the utility model by reference to the accompanying drawings now, accompanying drawing is the schematic diagram simplified, and only basic structure of the present utility model is described in a schematic way, therefore it only shows the formation relevant with the utility model.
As shown in Figure 1-2, a kind of system of the publilc baths waste water reuse with secondary recovery system, comprise bath heating system and bathing pool heating system, the heat-exchanger rig that described bath heating system comprises wastewater disposal basin 1, attemperater 2 and is connected between wastewater disposal basin 1 and attemperater 2, the thermal wastewater of discharging in wastewater disposal basin 1 and the clear water of attemperater 2 realize efficient heat exchange in heat-exchanger rig, reduced by the thermal wastewater temperature of heat-exchanger rig, raised by the clear water temperature of heat-exchanger rig.
Wherein, heat-exchanger rig comprises one-level heat-exchange system 3 and secondary heat exchange system 4, one-level heat-exchange system 3 is made up of one or more heat exchanger 5, multiple heat exchanger 5 is connected successively, waste water tunnel and water-dilution channel is divided in heat exchanger 5, thermal wastewater high for temperature is delivered in the waste water tunnel in heat exchanger 5 by pump group by the thermal wastewater in wastewater disposal basin 1, clear water low for temperature is delivered in the water-dilution channel in heat exchanger 5 by pump group by the water of discharging in running water pipe, thermal wastewater and clear water realize a heat exchange in heat exchanger 5, the temperature of thermal wastewater reduces, the temperature of clear water raises, multiple heat exchanger 5 can increase overall heat exchange area, the quantity of concrete heat exchanger 5 is determined according to the size at outdoor bathing place and actual needs.
Multiple source pump 6 is provided with in secondary heat exchange system 4, multiple source pump 6 can carry out parallel connection or series connection according to actual needs, concrete selection mode can according to overall structure and heat exchange need determine, in source pump 6, realize secondary heat exchange by the thermal wastewater of one-level heat-exchange system 3 and clear water, improve the utilization rate of thermal wastewater heat.Insulation unit 7 is also provided with in secondary heat exchange system 4, when clear water is after the heat exchange of a heat-exchange system and source pump 6, clear water temperature does not reach temperature required, namely insulation unit 7 is started, clear water in insulation unit 7 pairs of attemperaters 2 heats, the temperature entered before insulation unit 7 due to the water in attemperater 2 is just higher, general and rated temperature is more or less the same, therefore the heat exchange efficiency being incubated unit 7 is inevitable lower than source pump 6, under normal circumstances, the negligible amounts of insulation unit 7, the low unit of heat exchange efficiency can be reduced like this use, reduce the waste of the energy, if attemperater 2 volume is larger, quantity by the power and increase insulation unit 7 that increase insulation unit 7 solves.
Wherein, water system comprises tap water tank 13 and tap water pipe 14, tap water pipe 14 is arranged two delivery ports, a delivery port is connected with water service pipe 15, meet domestic water, another delivery port is connected by the water inlet of electric butterfly valve with tap water tank 13, is controlled logical the closing of tap water tank 13 inlet channel by electric butterfly valve, be provided with liquid level gauge in tap water tank 13, realized the automatic control of tap water tank 13 by liquid level gauge and electric butterfly valve.The delivery port of tap water tank 13 is connected with the clear water entrance of heat exchanger 5 by pipeline, pump group and magnetic valve is connected with between described tap water tank 13 and heat exchanger 5, running water in tap water tank 13 is delivered in heat exchanger 5 by pump group, and magnetic valve realizes the automatic control of tap water tank 13 outlet pipe.
Wherein, bath heating system is also connected with secondary recovery system 23, secondary recovery system 23 comprises secondary recovery pipeline 24, one end of secondary recovery pipeline 24 is connected with the wastewater outlet of insulation unit 2, the other end is also connected with the waterwater entrance of wastewater disposal basin 1, secondary recovery pipeline 24 is connected with electric butterfly valve, is connected by pump group between electric butterfly valve with wastewater disposal basin 1.When being incubated unit 7 and working, thermal wastewater is by after insulation unit 7, temperature declines few, and return water temperature is higher, can also continue to utilize, at this moment, close cast iron main sewer 8, opened by electric butterfly valve, this part waste water continues to turn back to secondary in wastewater disposal basin 1 and utilizes, remaining waste water heat is continued to utilize, further economize energy.
Wherein, bathing pool heating system comprises bathing pool 21 and is connected to the bathing pool attemperator 22 between bathing pool 21 and attemperater 2, and bathing pool attemperator 22 is for keeping the clear water temperature constant in bathing pool 21.Bathing pool attemperator 22 comprises multiple bathing pool heating unit 20, the waterwater entrance that wastewater outlet and the bathing pool of wastewater disposal basin 1 heat unit 20 is connected by pipeline, be back in wastewater disposal basin 1 by the waste water after the heat exchange of bathing pool heating unit 20, the clear water entrance that the clear water output of bathing pool 21 heats unit 20 by pipeline and multiple bathing pool is connected, and multiple bathing pool heating clear water output of unit 20 is connected with the clear water entrance of bathing pool 21.Because the clear water temperature in bathing pool 21 is higher, waste water temperature after bathing pool heating unit 20 declines little, can return in wastewater disposal basin 1 and recycle, carry out circulating-heating by the clear water in bathing pool heating unit 20 pairs of bathing pools 21, the temperature constant in bathing pool 21 can be ensured, ensure the comfort level of guest in bathing pool 21, and utilize waste water to heat, waste water is recycled, economize energy, very practical.
Wherein, according to actual needs, as preferably, heat exchanger 5 can be the combination of one or more in plate type heat exchanger, movable tube sheets heat exchanger, fixed tube-sheet exchanger and U-tube sheet heat exchanger.
Wherein, hair filter 9 and sand filtration cylinder 10 is connected with by pipeline between the wastewater outlet of wastewater disposal basin 1 and the first heat-exchange system, hair filter 9 is placed between the wastewater outlet of wastewater disposal basin 1 and sand filtration cylinder 10, thermal wastewater was filtered by hair filter 9 before entering sand filtration cylinder 10, filtered out by hair in thermal wastewater, hair can blocking pipe and the control element be connected on pipeline.And, when the cleaning in later stage, hair is than common mud and bur all difficulty cleanings, after hair filter 9 has been installed, as long as periodic cleaning hair filter 9 is all right, the cleaning cycle of pipeline and control element can extend to about 1 year, and, pipeline also can not block in cleaning cycle, very practical.
Wherein, the structure in source pump 6 is identical with the structure in insulation unit 7.The structure of source pump 6 is: comprise compressor, condenser and evaporimeter, evaporimeter, condenser and evaporimeter form a closed circulating heat exchange system, after liquid refrigerant in thermal wastewater and evaporimeter carries out heat exchange, cold-producing medium is by entering into condenser after compressor compresses, heat exchange is carried out within the condenser with clear water, the temperature of thermal wastewater is reduced further and is discharged by cast iron main sewer 8, and the temperature of clear water is raised further and is pumped in attemperater 2 by pump group.When needed, start insulation unit 7, the operation principle of insulation unit 7 is identical with the operation principle of source pump 6, does not repeat them here.
Wherein, the structure of bathing pool heating unit 20 is: comprise compressor, condenser and evaporimeter, evaporimeter, condenser and evaporimeter form a closed circulation heat-transmission system, after liquid refrigerant in thermal wastewater and evaporimeter carries out heat exchange, cold-producing medium is by entering into condenser after compressor compresses, heat exchange is carried out within the condenser with the clear water in bathing pool 21, the temperature of thermal wastewater reduces further and by cast iron main sewer 8 draining, the temperature of clear water is raised further and is pumped in bathing pool 21 by pump group.
Wherein, the waterwater entrance place of insulation unit 7 is connected with magnetic valve 11 by pipeline, the thermal wastewater passage entering insulation unit 7 is controlled by magnetic valve 11, insulation unit 7 is not long-term unlatching, but the temperature in attemperater 2 does not reach just unlatching when requiring, therefore, is controlled by magnetic valve 11, can economize energy, automatic control can be realized again.
Wherein, the clear water entrance of attemperater 2 and clear water output are provided with thermal contacts 12, detect the leaving water temperature of clear water by thermal contacts 12 and enter coolant-temperature gage, leaving water temperature with enter coolant-temperature gage and all can feed back to control system, both Data Detection was facilitated, automatic control can be realized again, reduce manual operation, practicality simple to operate.
The utility model structure is simple, and compact conformation, is combined by one-level heat-exchange system 3 and secondary heat exchange system 4, high to the utilization ratio of thermal wastewater, and clear water quick heating, the volume of attemperater 2 is little.And the utility model entirety is automatically control, and manual operation is few, very practical, relative to traditional waste heat utilization system, efficiency can be improved 2 ~ 3 times.Add self-cleaning system in systems in which, automation cleaning can be realized, time saving and energy saving, backwash principle is regularly utilized to clean ducted deposit and bur, ensure pipeline unobstructed, reduce waste water and to flow in the duct suffered resistance, very practical, general cleaning cycle is about 1 year, and cleaning effect is good.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-described embodiment, in the ken that those of ordinary skill in the art possess, can also make a variety of changes under the prerequisite not departing from the utility model aim.