CN208607112U - Concentration detection apparatus, concentration measurement and control device and solar water heater - Google Patents
Concentration detection apparatus, concentration measurement and control device and solar water heater Download PDFInfo
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- CN208607112U CN208607112U CN201820763628.0U CN201820763628U CN208607112U CN 208607112 U CN208607112 U CN 208607112U CN 201820763628 U CN201820763628 U CN 201820763628U CN 208607112 U CN208607112 U CN 208607112U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
The utility model discloses a kind of concentration detection apparatus, concentration measurement and control device and solar water heater.Concentration of the afore mentioned concentration detection device for the antifreeze in the heat transferring medium in on-line checking solar water heater, the concentration detection apparatus includes: viscosity detector, the pipeline for being used to convey the heat transferring medium of the solar water heater is set, for detecting the viscosity of the heat transferring medium in the pipeline；Temperature sensor, suitable in the heat transferring medium that is arranged in the solar water heater, for detecting the temperature of the heat transferring medium in the solar water heater；The concentration of antifreeze in heat transferring medium described in the temperature computation detected with concentration calculation unit, the viscosity and the temperature sensor detected according to the viscosity detector.Therefore, in the present invention, the concentration of the antifreeze in heat transferring medium can be monitored online, exceed preset range to prevent the concentration of the antifreeze in heat transferring medium.
Description
Technical field
The utility model relates to a kind of for detecting the concentration of the antifreeze in the heat transferring medium in solar water heater
Concentration detection apparatus and concentration measurement and control device and solar water heater including the concentration detection apparatus.
Background technique
For the solar water heater with heat-exchanger rig, the heat transferring medium in heat-exchanger rig usually all has stronger anti-
Jelly ability, to prevent the heat transferring medium in heat-exchanger rig from frost solidification occur in winter, therefore, this heat transferring medium is usually claimed
For anti frozen liquid, common anti frozen liquid is glycol water or aqueous solution of propylene glycol.It is freeze proof in anti frozen liquid in normal use
The concentration of agent (ethylene glycol or propylene glycol) should be within zone of reasonableness, for example, within the scope of 30V%~60V%.If
The freezing tolerance of lower limit value lower than zone of reasonableness or the upper limit value higher than zone of reasonableness, anti frozen liquid will decline, it is easy to go out
Now frost solidification.In use, it due to leakage, volatilizees, the loss such as aging causes the variation of freeze proof liquid measure and the change of concentration
Change.If adding or replacing anti frozen liquid not in time, it is possible to cause the concentration of the antifreeze in anti frozen liquid beyond zone of reasonableness, this meeting
Anti frozen liquid is caused to be easy occur frost solidification at low temperature, the pipeline so as to cause heat-exchanger rig is blocked or explosion.
Occurs the problem in order to prevent, in the prior art, it is generally required that be sampled analysis to anti frozen liquid, and according to taking
Sample result adds new anti frozen liquid or reconciles concentration.Meanwhile when solar water heater is initially installed, need to confirm anti frozen liquid
Concentration.Since solar water heater is mounted on roof, need manually to sample up, daily maintenance is inconvenient.
Utility model content
The purpose of this utility model aims to solve the problem that at least one aspect of the above-mentioned problems in the prior art and defect.
One aspect according to the present utility model provides a kind of concentration detection apparatus, is used for on-line checking solar water
The concentration of the antifreeze in heat transferring medium in device, the concentration detection apparatus include: viscosity detector, are arranged in the sun
The pipeline for being used to convey the heat transferring medium of energy water heater, for detecting the viscosity of the heat transferring medium in the pipeline；Temperature
Sensor is spent, suitable in the heat transferring medium that is arranged in the solar water heater, for detecting in the solar water heater
Heat transferring medium temperature；With concentration calculation unit, the viscosity detected according to the viscosity detector and the temperature sensing
The concentration of antifreeze in heat transferring medium described in the temperature computation that device detects.
The embodiment of an exemplary according to the present utility model, it is anti-in the heat transferring medium in the solar water heater
The concentration for freezing agent is calculated according to following formula (1):
C=k*logY (1),
Wherein
C is the concentration of the antifreeze in heat transferring medium,
Y is the viscosity of heat transferring medium,
K is coefficient relevant to the temperature of heat transferring medium, and when the temperature of heat transferring medium determines, k is constant.
The embodiment of another exemplary according to the present utility model, the concentration detection apparatus further include display unit,
The display unit and the concentration calculation unit communication, for showing calculated concentration.
The embodiment of another exemplary according to the present utility model, the viscosity detector are oscillatory type viscosmeter, hair
Thin-tube type viscosmeter or Rotary Viscosimeter.
The embodiment of another exemplary according to the present utility model, the viscosity detector are oscillatory type viscosmeter, institute
Stating viscosity detector includes: detection probe, suitable for being immersed into the heat transferring medium in solar water heater, including is suitable for generation machine
The elastic slice of tool vibration；Exciting unit is suitable for generating pulse excitation electric current, mechanical to motivate the elastic slice in the detection probe to generate
Vibration；Amplitude detection units are adapted to detect for the amplitude of the elastic slice in the detection probe；With viscosity computing unit, it is suitable for basis
The amplitude data that the amplitude detection units detect calculates the viscosity of the heat transferring medium.
The embodiment of another exemplary according to the present utility model, the temperature sensor are integrated into the viscosity inspection
It surveys on device, and can be immersed into the heat transferring medium in the solar water heater with the detection probe.
The embodiment of another exemplary according to the present utility model, the viscosity detector are mounted to the solar energy
On pipeline between the outlet of the entrance and heat exchanger of the heat collector of water heater.
Other side according to the present utility model provides a kind of concentration measurement and control device, comprising: concentration detection apparatus is used
The concentration of antifreeze in the heat transferring medium in on-line checking solar water heater；Concentration judging unit, for judging detection
Whether the concentration arrived is within preset range；With concentration alarm unit, for determining to detect in the concentration judging unit
Concentration sounds an alarm when exceeding the preset range.
Other side according to the present utility model provides a kind of solar water heater, comprising: water tank, for accommodating
Water；And heat-exchanger rig, including the heat collector of outside and the heat exchanger being arranged in the water tank is arranged in, the heat collector
Outlet is connected by pipeline with the entrance of the heat exchanger, and the outlet of the heat exchanger passes through the entrance of pipeline and the heat collector
It is connected, to constitute a closed circulation loop, heat transferring medium, the solar water is filled in the circulation loop
Device further includes concentration detection apparatus, and the concentration detection apparatus is in the heat transferring medium in on-line checking solar water heater
The concentration of antifreeze.
The embodiment of an exemplary according to the present utility model, the heat transferring medium in the solar water heater are second two
Alcohol solution, aqueous solution of propylene glycol or glycerin solution.
The embodiment of another exemplary according to the present utility model, the solar water heater further include: concentration judgement
Unit, for judging the concentration detected whether within preset range；With concentration alarm unit, it is used to judge in the concentration
Unit sounds an alarm when determining the concentration detected beyond the preset range.
The embodiment of another exemplary according to the present utility model, when the heat transferring medium in the solar water heater is
When glycol water, the reasonable concentration of the heat transferring medium in the solar water heater is within 30V%~60V%.
The embodiment of another exemplary according to the present utility model, the heat collector is flat plate collector, described to change
Hot device is coiling tube type heat exchangers.
The embodiment of another exemplary according to the present utility model, the solar water heater further includes pump, for pumping
The heat transferring medium is sent, so that the heat transferring medium circulates in the circulation loop.
The embodiment of another exemplary according to the present utility model, the water tank have inlet and outlet, institute
The lower part that water inlet is located at the water tank is stated, the water outlet is located at the top of the water tank.
The embodiment of another exemplary according to the present utility model, the solar water heater further include antifreeze supplement
Device, the antifreeze supplementary device are lower than scheduled dense suitable for the concentration of the antifreeze detected in the concentration detection apparatus
Antifreeze automatically is supplemented into the heat-exchanger rig when spending lower limit value, so that the concentration of the antifreeze in the heat-exchanger rig is extensive
It answers within concentration range reasonable.
The embodiment of another exemplary according to the present utility model, the antifreeze supplementary device includes: container, storage
There is antifreeze；Connecting line, by the reservoir to the heat-exchanger rig；First electrically-controlled valve is mounted on the connecting line
On, it is used to open or closes the connecting line；And controller, suitable for the antifreeze detected according to the concentration detection apparatus
Concentration control the opening and closing of first electrically-controlled valve.When the concentration for the antifreeze that the concentration detection apparatus detects is low
When scheduled concentration limit value, the controller controls first electrically-controlled valve and opens, and control first electrically-controlled valve to
The antifreeze of predetermined amount is supplemented in the heat-exchanger rig.
The embodiment of another exemplary according to the present utility model, the controller is by controlling first electrically-controlled valve
Opening time control the amount of the antifreeze supplemented into the heat-exchanger rig.
The embodiment of another exemplary according to the present utility model, the solar water heater further include water replanishing device,
The water replanishing device is suitable for when the concentration for the antifreeze that the concentration detection apparatus detects is higher than scheduled upper limit of concentration value
Automatically supplement tap water into the heat-exchanger rig so that the concentration of the antifreeze in the heat-exchanger rig be restored to rationally it is dense
It spends within range.
The embodiment of another exemplary according to the present utility model, the water replanishing device include: water pipe, will be described
Heat-exchanger rig is connected to water supply；Second electrically-controlled valve is mounted on the water pipe, is used to open or closes the moisturizing
Pipeline；And controller, the concentration suitable for the antifreeze detected according to the concentration detection apparatus control second electrically-controlled valve
Opening and closing；When the concentration for the antifreeze that the concentration detection apparatus detects is higher than scheduled upper limit of concentration value, institute
It states controller and controls the second electrically-controlled valve opening, and control second electrically-controlled valve and supplement predetermined amount into the heat-exchanger rig
Tap water.
The embodiment of another exemplary according to the present utility model, the controller is by controlling second electrically-controlled valve
Opening time control the amount of the tap water supplemented into the heat-exchanger rig.
In the embodiment of the aforementioned each exemplary of the utility model, Concentration Testing dress is provided on solar water heater
It sets, so as to the concentration of the antifreeze in the heat transferring medium in on-line checking solar water heater, so as to be monitored online
The concentration of antifreeze in heat transferring medium exceeds preset range to prevent the concentration of the antifreeze in heat transferring medium.
It is described by below with reference to attached drawing to made by the utility model, the other objects and advantages of the utility model will
It is clear that can simultaneously help to be fully understood by the utility model.
Detailed description of the invention
Fig. 1 shows the schematic diagram of the solar water heater of the embodiment of an exemplary according to the present utility model；
Fig. 2 shows the schematic diagram of the viscosity detector of the embodiment of an exemplary according to the present utility model；
Fig. 3 shows the concentration of antifreeze in heat transferring medium and the relationship between the viscosity of heat transferring medium.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.?
In specification, the same or similar drawing reference numeral indicates the same or similar component.It is following real to the utility model referring to attached drawing
The explanation for applying mode is intended to explain the overall utility model design of the utility model, and is not construed as practical to this
A kind of novel limitation.
In addition, in the following detailed description, to elaborate many concrete details to provide to present disclosure convenient for explaining
The comprehensive understanding of embodiment.It should be apparent, however, that one or more embodiments without these specific details can also be with
It is carried out.In other cases, well known construction and device is diagrammatically embodied to simplify attached drawing.
General technical design according to the present utility model, provides a kind of concentration detection apparatus, too for on-line checking
The concentration of the antifreeze in heat transferring medium in positive energy water heater, the concentration detection apparatus includes: viscosity detector, and setting exists
The pipeline for being used to convey the heat transferring medium of the solar water heater, for detecting the heat transferring medium in the pipeline
Viscosity；Temperature sensor, suitable in the heat transferring medium that is arranged in the solar water heater, for detecting the solar heat
The temperature of heat transferring medium in hydrophone；With concentration calculation unit, the viscosity detected according to the viscosity detector and the temperature
The concentration of antifreeze in heat transferring medium described in the temperature computation that degree sensor detects.
Another general technical design according to the present utility model, provides a kind of concentration measurement and control device, comprising: Concentration Testing
Device, the concentration for the antifreeze in the heat transferring medium in on-line checking solar water heater；Concentration judging unit, for sentencing
Whether the disconnected concentration detected is within preset range；With concentration alarm unit, it is used to determine to examine in the concentration judging unit
The concentration measured sounds an alarm when exceeding the preset range.
Another general technical design according to the present utility model, provides a kind of solar water heater, comprising: water tank,
For accommodating water；And heat-exchanger rig, it is described including the heat exchanger that the heat collector of outside is arranged in and is arranged in the water tank
The outlet of heat collector is connected by pipeline with the entrance of the heat exchanger, and the outlet of the heat exchanger passes through pipeline and the thermal-arrest
The entrance of device is connected, to constitute a closed circulation loop, is filled with heat transferring medium in the circulation loop, it is described too
Positive energy water heater further includes concentration detection apparatus, and the concentration detection apparatus is for the heat exchange in on-line checking solar water heater
The concentration of antifreeze in medium.
Fig. 1 shows the schematic diagram of the solar water heater of the embodiment of an exemplary according to the present utility model.
As shown in Figure 1, in the illustrated embodiment, which specifically includes that water tank 200 and heat exchange dress
It sets.Water tank 200 is for accommodating water.Heat-exchanger rig includes that external heat collector 110 is arranged in and is arranged in water tank 200
Heat exchanger 120.The outlet of heat collector 110 is connected by pipeline with the entrance of heat exchanger 120, and the outlet of heat exchanger 120 passes through pipe
Road 140 is connected with the entrance of heat collector 110, so that a closed circulation loop is constituted, filled with heat exchange in circulation loop
Medium.The heat transferring medium heated by heat collector 110 flows into heat exchanger 120, and by heat exchanger 120 and water tank 200
Water carries out heat exchange, to heat the water in water tank 200.Heat transferring medium in water tank 200 water carry out heat exchange it
Afterwards, it again flows into heat collector 110 and is heated by heat collector 110.
Fig. 2 shows the schematic diagram of the viscosity detector of the embodiment of an exemplary according to the present utility model.
As depicted in figs. 1 and 2, in the illustrated embodiment, which further includes concentration detection apparatus, this is dense
Spend concentration of the detection device for the antifreeze in the heat transferring medium 101 in on-line checking solar water heater.
As depicted in figs. 1 and 2, in the illustrated embodiment, the concentration detection apparatus specifically include that viscosity detector 10,
Temperature sensor (not shown) and concentration calculation unit (not shown).
As depicted in figs. 1 and 2, in the illustrated embodiment, being used for for solar water heater is arranged in viscosity detector 10
On the pipeline 140 of delivery heat transfer medium 101, for detecting the viscosity of the heat transferring medium 101 in pipeline 140.Temperature sensor is suitable
In the heat transferring medium 101 being arranged in solar water heater, for detecting the temperature of the heat transferring medium 101 in solar water heater
Degree.The temperature computation that the viscosity and temperature sensor that concentration calculation unit is suitable for being detected according to viscosity detector 10 detect is changed
The concentration of antifreeze in thermal medium 101.
It is anti-in the heat transferring medium 101 in solar water heater in the embodiment of an exemplary of the utility model
The concentration for freezing agent can be calculated according to following formula (1):
C=k*logY (1),
Wherein
C is the concentration of the antifreeze in heat transferring medium 101,
Y is the viscosity of heat transferring medium 101,
K is coefficient relevant to the temperature of heat transferring medium, and when the temperature of heat transferring medium determines, k is constant.
In the embodiment of an exemplary of the utility model, concentration detection apparatus further includes that display unit (is not schemed
Show), the display unit and concentration calculation unit communication, for showing calculated concentration.
In the embodiment of an exemplary of the utility model, as shown in Fig. 2, viscosity detector 10 is oscillatory type viscosity
Meter.But the utility model is not limited to this, viscosity detector 10 can also be capillary type viscosmeter or rotary viscosity
Meter.
In the embodiment of an exemplary of the utility model, as shown in Fig. 2, viscosity detector 10 specifically includes that inspection
Probing head 11, exciting unit 12, amplitude detection units 13 and viscosity computing unit 14.
As shown in Fig. 2, in the heat transferring medium 101 that detection probe 11 is suitable for being immersed into solar water heater, detection probe
11 include the elastic slice (not shown) suitable for generating mechanical oscillation.Exciting unit 12 is suitable for generating pulse excitation electric current, to motivate inspection
Elastic slice on probing head 11 generates mechanical oscillation.Amplitude detection units 13 are adapted to detect for the vibration of the elastic slice in aforementioned detection probe 11
Width.The amplitude data that viscosity computing unit 14 is suitable for being detected according to amplitude detection units 13 calculates the viscosity of heat transferring medium 101.
In the embodiment of an exemplary of the utility model, aforementioned temperature sensor can be integrated into viscosity detection
On device 10, and it can be immersed into the heat transferring medium 101 in solar water heater with detection probe 11.But this is practical new
Type is not limited to the embodiment of diagram, and aforementioned temperature sensor can also be separately arranged at Jie of the heat exchange in solar water heater
In matter 101.
In the embodiment of an exemplary of the utility model, viscosity detector 10 is mounted to solar water heater
On pipeline 140 between the outlet of the entrance and heat exchanger 120 of heat collector 110.This is because entrance and the heat exchange of heat collector 110
The temperature of the heat transferring medium 101 in pipeline 140 between the outlet of device 120 is lower.
Fig. 3 shows the concentration of antifreeze in heat transferring medium and the relationship between the viscosity of heat transferring medium.
As shown in figure 3, in the illustrated embodiment, the heat transferring medium in solar water heater is glycol water, this
When, the reasonable concentration of the heat transferring medium in solar water heater is within 30V%~60V%.That is, changing in solar water heater
The concentration of thermal medium should be within the scope of 30V%~60V%, if exceeding the range, for example, in solar water heater
For the concentration of heat transferring medium lower than 30V% or when being higher than 60V%, the concentration measurement and control device being mounted on solar water heater can be timely
Alarm.
As shown in figure 3, in the illustrated embodiment, when one timing of temperature of the heat transferring medium in solar water heater, second
It is deposited between the logarithm of the concentration of ethylene glycol (antifreeze) in the viscosity and glycol water of two alcohol solutions (heat transferring medium)
In good linear relationship.
As shown in Figure 3, it can be seen that with the increase of the concentration of ethylene glycol, the viscosity of glycol water also correspondingly on
It rises.Therefore, when the temperature of the viscosity and glycol water that detect glycol water, so that it may be calculated according to Fig. 3
Corresponding glycol concentration.
The utility model is not limited in previous embodiment, and the heat transferring medium in solar water heater is in addition to that can be second two
Alcohol solution can also be other suitable anti frozen liquids, for example, aqueous solution of propylene glycol or glycerin solution.
In the embodiment of an exemplary of the utility model, solar water heater further include: concentration judging unit is used
In the concentration that judgement detects whether within preset range (aforementioned zone of reasonableness)；With concentration alarm unit, it is used in concentration
Judging unit sounds an alarm when determining the concentration detected beyond preset range.
In the embodiment of an exemplary of the utility model, as shown in Figure 1, heat collector 110 is flat plate collector,
Heat exchanger 120 is coiling tube type heat exchangers.
In the embodiment of an exemplary of the utility model, as shown in Figure 1, solar water heater further includes pump 130,
For pumping heat transferring medium, so that heat transferring medium circulates in circulation loop.
In the embodiment of an exemplary of the utility model, as shown in Figure 1, water tank 200 has 210 He of water inlet
Water outlet 220, water inlet 210 are located at the lower part of water tank 200, and water outlet 220 is located at the top of water tank 200.
As shown in Figure 1, in the illustrated embodiment, solar water heater further include antifreeze supplementary device 300,310,
320, antifreeze supplementary device 300,310,320 is lower than scheduled suitable for the concentration of the antifreeze detected in concentration detection apparatus
Antifreeze is automatically supplemented into heat-exchanger rig when concentration limit value, so that the concentration of the antifreeze in heat-exchanger rig is restored to conjunction
It manages within concentration range.
As shown in Figure 1, in the illustrated embodiment, antifreeze supplementary device 300,310,320 specifically includes that container 300,
It is stored with antifreeze；Container 300 is connected to heat-exchanger rig by connecting line 310；First electrically-controlled valve 320, is mounted on connecting line
On 310, connecting line 310 is used to open or closed；And controller, suitable for the antifreeze that is detected according to concentration detection apparatus
Concentration controls the opening and closing of the first electrically-controlled valve 320.
As shown in Figure 1, in the illustrated embodiment, when the concentration for the antifreeze that concentration detection apparatus detects is lower than predetermined
Concentration limit value when, controller control the first electrically-controlled valve 320 open, and control the first electrically-controlled valve 320 mended into heat-exchanger rig
Fill the antifreeze of predetermined amount.
As shown in Figure 1, in the illustrated embodiment, controller is controlled by controlling the opening time of the first electrically-controlled valve 320
Make the amount of the antifreeze supplemented into heat-exchanger rig.
As shown in Figure 1, in the illustrated embodiment, solar water heater further includes water replanishing device 410,420, water replanishing device
410,420 are suitable for when the concentration for the antifreeze that concentration detection apparatus detects is higher than scheduled upper limit of concentration value automatically to changing
Tap water is supplemented in thermal, so that the concentration of the antifreeze in heat-exchanger rig is restored within concentration range reasonable.
As shown in Figure 1, in the illustrated embodiment, water replanishing device 410,420 specifically includes that water pipe 410, will exchange heat
Device is connected to water supply；Second electrically-controlled valve 420, is mounted on water pipe 410, is used to open or closes water pipe
410；And controller, the opening of the second electrically-controlled valve 420 is controlled suitable for the concentration of the antifreeze detected according to concentration detection apparatus
And closing.
As shown in Figure 1, in the illustrated embodiment, making a reservation for when the concentration for the antifreeze that concentration detection apparatus detects is higher than
Upper limit of concentration value when, controller control the second electrically-controlled valve 420 open, and control the second electrically-controlled valve 420 mended into heat-exchanger rig
Fill the tap water of predetermined amount.
As shown in Figure 1, in the illustrated embodiment, controller is controlled by controlling the opening time of the second electrically-controlled valve 420
Make the amount of the tap water supplemented into heat-exchanger rig.
In the embodiment of another exemplary of the utility model, a kind of concentration measurement and control device, concentration prison are also disclosed
Controlling device includes: concentration detection apparatus, for the dense of the antifreeze in the heat transferring medium 101 in on-line checking solar water heater
Degree；Concentration judging unit, for judging the concentration detected whether within preset range；With concentration alarm unit, it is used for
Concentration judging unit sounds an alarm when determining the concentration detected beyond preset range.
It will be understood to those skilled in the art that embodiment described above is all exemplary, and this field
Technical staff can make improvements, the rushing in terms of not recurring structure or principle of structure described in various embodiments
It can be freely combined in the case where prominent.
Although the utility model is illustrated in conjunction with attached drawing, embodiment disclosed in attached drawing is intended to practical to this
Novel preferred embodiment illustrates, and should not be understood as a kind of limitation to the utility model.
Although some embodiments of this totality utility model design have been shown and have illustrated, those of ordinary skill in the art will
Understand, in the case where the principle and spirit conceived without departing substantially from this totality utility model, these embodiments can be made a change, this
The range of utility model is limited with claim and their equivalent.
It should be noted that word " comprising " is not excluded for other element or steps, word "a" or "an" is not excluded for multiple.Separately
Outside, any element label of claim should not be construed as limitation the scope of the utility model.
Claims (21)
1. a kind of concentration detection apparatus, for the antifreeze in the heat transferring medium (101) in on-line checking solar water heater
Concentration, the concentration detection apparatus include:
The pipeline for being used to convey the heat transferring medium (101) of the solar water heater is arranged in viscosity detector (10)
(140) on, for detecting the viscosity of the heat transferring medium (101) in the pipeline (140)；
Temperature sensor, suitable in the heat transferring medium (101) that is arranged in the solar water heater, for detecting the sun
The temperature of heat transferring medium (101) in energy water heater；With
Concentration calculation unit, the temperature that the viscosity and the temperature sensor detected according to the viscosity detector (10) detects
Degree calculates the concentration of the antifreeze in the heat transferring medium (101).
2. concentration detection apparatus according to claim 1, it is characterised in that:
The concentration of the antifreeze in heat transferring medium (101) in the solar water heater is calculated according to following formula (1):
C=k*logY (1),
Wherein
C is the concentration of the antifreeze in heat transferring medium (101),
Y is the viscosity of heat transferring medium (101),
K is coefficient relevant to the temperature of heat transferring medium, and when the temperature of heat transferring medium determines, k is constant.
3. concentration detection apparatus according to claim 1, it is characterised in that:
The concentration detection apparatus further includes display unit, the display unit and the concentration calculation unit communication, for showing
Show calculated concentration.
4. concentration detection apparatus according to claim 1, it is characterised in that:
The viscosity detector (10) is oscillatory type viscosmeter, capillary type viscosmeter or Rotary Viscosimeter.
5. concentration detection apparatus according to claim 1, it is characterised in that:
The viscosity detector (10) is oscillatory type viscosmeter, and the viscosity detector (10) includes:
Detection probe (11) suitable in the heat transferring medium (101) that is immersed into solar water heater, including is suitable for generating mechanical vibration
Dynamic elastic slice；
Exciting unit (12) is suitable for generating pulse excitation electric current, mechanical to motivate the elastic slice on the detection probe (11) to generate
Vibration；
Amplitude detection units (13) are adapted to detect for the amplitude of the elastic slice on the detection probe (11)；With
Viscosity computing unit (14), the amplitude data for being suitable for being detected according to the amplitude detection units (13) calculate the heat exchange
The viscosity of medium (101).
6. concentration detection apparatus according to claim 5, it is characterised in that:
The temperature sensor is integrated on the viscosity detector (10), and can be submerged with the detection probe (11)
Into the heat transferring medium (101) in the solar water heater.
7. concentration detection apparatus according to claim 1, it is characterised in that:
The viscosity detector (10) is mounted to the entrance and heat exchanger of the heat collector (110) of the solar water heater
(120) on the pipeline (140) between outlet.
8. a kind of concentration measurement and control device characterized by comprising
Concentration detection apparatus, the concentration for the antifreeze in the heat transferring medium (101) in on-line checking solar water heater；
Concentration judging unit, for judging the concentration detected whether within preset range；With
Concentration alarm unit, for the sending when the concentration judging unit determines the concentration detected beyond the preset range
Alarm,
The concentration detection apparatus is concentration detection apparatus of any of claims 1-7.
9. a kind of solar water heater, comprising:
Water tank (200), for accommodating water；With
Heat-exchanger rig, including the heat exchanger of external heat collector (110) and setting in the water tank (200) is arranged in
(120),
The outlet of the heat collector (110) is connected by pipeline (140) with the entrance of the heat exchanger (120), the heat exchanger
(120) outlet is connected by pipeline with the entrance of the heat collector (110), so that a closed circulation loop is constituted,
Heat transferring medium is filled in the circulation loop,
It is characterized by:
The solar water heater further includes concentration detection apparatus, and the concentration detection apparatus is used for on-line checking solar water
The concentration of the antifreeze in heat transferring medium in device,
The concentration detection apparatus is concentration detection apparatus of any of claims 1-7.
10. solar water heater according to claim 9, it is characterised in that:
Heat transferring medium in the solar water heater is glycol water, aqueous solution of propylene glycol or glycerin solution.
11. solar water heater according to claim 10, which is characterized in that the solar water heater further include:
Concentration judging unit, for judging the concentration detected whether within preset range；With
Concentration alarm unit, for the sending when the concentration judging unit determines the concentration detected beyond the preset range
Alarm.
12. solar water heater according to claim 11, it is characterised in that:
When the heat transferring medium in the solar water heater is glycol water, the heat exchange in the solar water heater is situated between
The reasonable concentration of matter is within 30V%~60V%.
13. solar water heater according to claim 9, it is characterised in that:
The heat collector (110) is flat plate collector, and the heat exchanger (120) is coiling tube type heat exchangers.
14. solar water heater according to claim 9, it is characterised in that:
The solar water heater further includes pump (130), for pumping the heat transferring medium, so that the heat transferring medium is described
It is circulated in circulation loop.
15. solar water heater according to claim 9, it is characterised in that:
The water tank (200) has water inlet (210) and water outlet (220), and the water inlet (210) is located at the water tank
(200) lower part, the water outlet (220) are located at the top of the water tank (200).
16. solar water heater according to claim 9, it is characterised in that:
The solar water heater further includes antifreeze supplementary device, and the antifreeze supplementary device is suitable in the Concentration Testing
The concentration for the antifreeze that device detects automatically is supplemented into the heat-exchanger rig freeze proof when being lower than scheduled concentration limit value
Agent, so that the concentration of the antifreeze in the heat-exchanger rig is restored within concentration range reasonable.
17. solar water heater according to claim 16, which is characterized in that the antifreeze supplementary device includes:
Container (300), is stored with antifreeze；
The container (300) is connected to the heat-exchanger rig by connecting line (310)；
First electrically-controlled valve (320) is mounted on the connecting line (310), is used to open or closes the connecting line
(310)；With
Controller, the concentration suitable for the antifreeze detected according to the concentration detection apparatus control first electrically-controlled valve
(320) opening and closing,
When the concentration for the antifreeze that the concentration detection apparatus detects is lower than scheduled concentration limit value, the controller control
It makes first electrically-controlled valve (320) to open, and controls in the first electrically-controlled valve (320) Xiang Suoshu heat-exchanger rig and supplement predetermined amount
Antifreeze.
18. solar water heater according to claim 17, it is characterised in that:
The controller is supplemented to control into the heat-exchanger rig by controlling the opening time of first electrically-controlled valve (320)
Antifreeze amount.
19. solar water heater according to claim 9, it is characterised in that:
The solar water heater further includes water replanishing device, what the water replanishing device was suitable for detecting in the concentration detection apparatus
The concentration of antifreeze automatically supplements tap water into the heat-exchanger rig when being higher than scheduled upper limit of concentration value, so that described change
The concentration of antifreeze in thermal is restored within concentration range reasonable.
20. solar water heater according to claim 19, which is characterized in that the water replanishing device includes:
The heat-exchanger rig is connected to water supply by water pipe (410)；
Second electrically-controlled valve (420) is mounted on the water pipe (410), is used to open or closes the water pipe
(410)；With
Controller, the concentration suitable for the antifreeze detected according to the concentration detection apparatus control second electrically-controlled valve
(420) opening and closing,
When the concentration for the antifreeze that the concentration detection apparatus detects is higher than scheduled upper limit of concentration value, the controller control
It makes second electrically-controlled valve (420) to open, and controls in the second electrically-controlled valve (420) Xiang Suoshu heat-exchanger rig and supplement predetermined amount
Tap water.
21. solar water heater according to claim 20, it is characterised in that:
The controller is supplemented to control into the heat-exchanger rig by controlling the opening time of second electrically-controlled valve (420)
Tap water amount.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820763628.0U CN208607112U (en) | 2018-05-22 | 2018-05-22 | Concentration detection apparatus, concentration measurement and control device and solar water heater |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820763628.0U CN208607112U (en) | 2018-05-22 | 2018-05-22 | Concentration detection apparatus, concentration measurement and control device and solar water heater |
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| Publication Number | Publication Date |
|---|---|
| CN208607112U true CN208607112U (en) | 2019-03-15 |
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ID=65662518
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| CN (1) | CN208607112U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514555A (en) * | 2018-05-22 | 2019-11-29 | 泰科电子(上海)有限公司 | Concentration detection apparatus, concentration measurement and control device and solar water heater |
| EP3783275A1 (en) * | 2019-08-21 | 2021-02-24 | Grundfos Holding A/S | Pump system |
-
2018
- 2018-05-22 CN CN201820763628.0U patent/CN208607112U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110514555A (en) * | 2018-05-22 | 2019-11-29 | 泰科电子(上海)有限公司 | Concentration detection apparatus, concentration measurement and control device and solar water heater |
| EP3783275A1 (en) * | 2019-08-21 | 2021-02-24 | Grundfos Holding A/S | Pump system |
| CN112415089A (en) * | 2019-08-21 | 2021-02-26 | 格兰富控股联合股份公司 | Pump system |
| CN112415089B (en) * | 2019-08-21 | 2024-05-14 | 格兰富控股联合股份公司 | Pump system |
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