CN209622924U - Photo-thermal heating pump house pipeline warm-keeping device - Google Patents
Photo-thermal heating pump house pipeline warm-keeping device Download PDFInfo
- Publication number
- CN209622924U CN209622924U CN201921646444.7U CN201921646444U CN209622924U CN 209622924 U CN209622924 U CN 209622924U CN 201921646444 U CN201921646444 U CN 201921646444U CN 209622924 U CN209622924 U CN 209622924U
- Authority
- CN
- China
- Prior art keywords
- water
- pump
- water tank
- pipeline
- pump house
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
Photo-thermal heating pump house pipeline warm-keeping device, it includes Initialize installation unit, solar energy heating component, insulated water tank, water tank, water route, one for detecting the temperature detector of described water storage the temperature inside the box, one outlet conduit being connected between the insulated water tank and the water tank, one first throttle valve being set on the outlet conduit, one water supply pipeline being connected between the insulated water tank and the water tank, one upper water water pump being set on the water supply pipeline, one water circulating pump being arranged in the water route, two are set on the water route and are respectively arranged at the on-off valve of the water tank two sides, two second throttle for being set on the pipeline and being respectively arranged at function water pump two sides, an and control device being connect with the temperature detector.This photo-thermal heating pump house pipeline warm-keeping device can prevent pump house from freezing and function water pump and pipeline in pump house is caused not to be available.
Description
Technical field
The utility model relates to photovoltaic water pump applied technical fields, in particular to photo-thermal heating pump house pipeline warm-keeping device.
Background technique
Photovoltaic water pump generally refers to the function water pump for using photovoltaic energy as its power source, uses the area of photovoltaic water pump
Usually light application time is long, the area in 1 year more than illumination day, such as Qinghai, the high cold district above sea level of Tibet China.Many institute's weeks
Know, for above-mentioned area, day and night temperature is big, especially winter, after stopping pumping, although the pipe in outdoor or pumped well
Water in road can be retired, but the water in these water pumps and its subsidiary pipeline cannot be fully withdrawn, therefore can at night not
The phenomenon that freezing is generated since temperature is low when drawing water, so as to cause when having illumination daytime, photovoltaic energy is converted
The electric power of component is promoted to when can make function water pump operation, the nothing due to icing such as various water pumps and subsidiary pipeline in pump house
Method runs and wastes time the electric energy generated with photovoltaic energy component.In addition, if user does not know the various water pumps in pump house
And subsidiary pipeline etc. has frozen or bursting by freezing, and when open function pump working, these water pumps and subsidiary pipeline in pump house etc.
It can damage.
Utility model content
In view of this, the present invention provides a kind of photo-thermal heating pump house pipeline warm-keeping device, the photo-thermal heating pump houses
Pipeline warm-keeping device is that a set of of photovoltaic module setting on the roof of pump house independently of photovoltaic water pump can be carried out using the sun
The photo-thermal heating plant of heating is used to provide thermal energy to keep warm to the equipment in pump house, to prevent these in pump house
Water pump and subsidiary pipeline etc. are damaged by frost.
Photo-thermal heating pump house pipeline warm-keeping device, the function water pump being used in heating and thermal insulation pump house and is connected to function water
Pipeline between pump.The photo-thermal heating pump house pipeline warm-keeping device includes an Initialize installation unit, and one is set to institute
State the solar energy heating component on pump house roof, an insulated water tank connecting with the solar energy heating component, a setting
Water tank in the pump house, one group of water for being set in the pump house and being connected between the pipeline and the water tank
Road, one is used to detect the temperature detector of described water storage the temperature inside the box, and one is connected to the insulated water tank and the water storage
Outlet conduit between case, a first throttle valve being set on the outlet conduit, one is connected to the insulated water tank
Water supply pipeline between the water tank, a upper water water pump being set on the water supply pipeline, one is arranged described
Water circulating pump in water route, two are set on the water route and are respectively arranged at the on-off valve of the water tank two sides, and two
It is set on the pipeline and is respectively arranged at the second throttle and one and temperature inspection of function water pump two sides
Survey the control device of device connection.The temperature reference value for the water that the Initialize installation unit is used to be arranged in the water tank, institute
Real time temperature and the temperature reference value of the control device for the pump house that the temperature detector detects are stated, and
The upper water water pump, first throttle valve, on-off valve, second throttle and the water circulating pump are controlled according to comparison result
Operating status is to maintain the temperature in the pump house pipeline.
Further, the solar energy heating component includes that a heat collector and one group are connect with the insulated water tank
Connecting pipe.
Further, the temperature reference value is any one value between subzero 4 degree to 2 degree.
Further, the temperature detector includes a temperature sensor.
Further, the both ends in the water route are separately positioned between two second throttle and function water pump.
Compared with prior art, photo-thermal heating pump house pipeline warm-keeping device provided by the utility model is arranged in pump house
Have water tank, which connect with insulated water tank, be connected to the water tank and function water pump influent side and water outlet side it
Between water route, the water circulating pump on the water route is set, and the cooperation water circulating pump and function water pump can normal works
The on-off valve of work and the first, second throttle valve, so that the photo-thermal heating pump house pipeline warm-keeping device can use using too
It is positive can thermal-arrest component come the water in the incubator that heats, and carry out heating function water pump using the water after heating and be connected to function
Pipeline between water pump, so that the various function water pumps of the pump house and the water of pipeline are not allowed to be also easy to produce in low temperature
The phenomenon that freezing and lead to not using while can also be to avoid not knowing various function water pumps and the pipe in pump house due to user
Road etc. frozen or bursting by freezing and startup function water pump causes various function water pumps and pipeline in pump house to be damaged.
Detailed description of the invention
Fig. 1 is the attachment structure schematic diagram of photo-thermal heating pump house pipeline warm-keeping device provided by the utility model.
Specific embodiment
Specific embodiment of the utility model is further elaborated below.It should be understood that herein to this
The explanation of utility model embodiment is not used to limit the protection scope of the utility model.
As shown in Figure 1, it illustrates for the connection structure of photo-thermal heating pump house pipeline warm-keeping device provided by the utility model
Figure.The photo-thermal heating pump house pipeline warm-keeping device is for heating and keeping the temperature the function water pump 300 in pump house 200 and be connected to institute
State the pipeline 400 between function water pump 300.The photo-thermal heating pump house pipeline warm-keeping device includes an Initialize installation unit
10, a solar energy heating component 20 being set on 200 roof of pump house, one connects with the solar energy heating component 20
The insulated water tank 30 connect, a water tank 40 being set in the pump house 200, one group of connection pipeline 400 and the storage
The water route 50 of water tank 40, one for detecting the temperature detector 60 of the water in institute's water tank 40, one and the temperature detection
The control device 70 that device 60 connects, an outlet conduit 80 being connected between the insulated water tank 30 and the water tank 40,
One first throttle valve 90 being arranged on the outlet conduit 80, one is connected to the insulated water tank 30 and the water tank
Water supply pipeline 100 between 40, a upper water water pump 110 being set on the water supply pipeline 100, one is arranged in the water
Water circulating pump 120 on road 50, two are set on the water route 50 and are located at the on-off valve of 40 two sides of water tank
130 and two second throttle for being set on the pipeline 400 and being respectively arranged at 300 two sides of function water pump
140.It is envisioned that the photo-thermal heating pump house pipeline warm-keeping device further includes other some functional modules, it is such as electrical
Connection component, piping connection component etc. should be technology known by those skilled in the art, no longer detailed one by one herein
Explanation.
The pump house 200 for install and protect various function water pumps 300 and other function equipment such as engine, with
And its workshop of ancillary equipment, which is a technique known to those skilled in the art, and details are not described herein.
The function water pump 300 can be the water pump that draws water, booster pump etc., and the supply that is used to release in the water of water head site is used
Family side, it is photovoltaic water pump in the present embodiment, i.e., provides the water pump of power by photovoltaic energy transition components.It is contemplated that
It is that when not having illumination, which is inoperable.300, the function water pump as a kind of existing skill
Art is controlled and is executed by a series of power electronics, motor, water dispenser etc. link and mentions to realize in rivers and lakes or deep-well
The device of water is known by those skilled in the art, and details are not described herein.It is envisioned that according to actual needs, such as taking out
The requirement of bigcatkin willow journey, the function water pump 300 can have it is multiple, in the present embodiment, the function water pump have 3.
The pipeline 400 is set to the water inlet of the function water pump 300 and the water outlet of the function water pump 300, with
And between multiple function water pumps 300, it is used to convey water, it also may include various function accessories and affiliated facility, such as connect
Component, locking assembly etc., but which is a technique known to those skilled in the art, and details are not described herein.
The Initialize installation unit 10 can include the electronic device at the interface UI for one, have input or output,
And data are saved, but itself should be a kind of prior art, details are not described herein.The Initialize installation unit 10 is used for
The temperature reference value of water in the water tank 40 is set, in favor of the work of the control device 70.The temperature reference value
It can be -4 any one value spent between 2 degree, in this temperature range, water has can for characterizing the temperature in pipeline 400
It can freeze.In the present embodiment, the temperature reference value is zero degree.
The solar energy heating component 20 mainly include heat collector 21 and be connected to heat collector 21 and insulated water tank 30 it
Between connecting pipe 22.The heat collector 21 is for collecting solar radiation heat and solar radiation heat being converted to heat
Can, so it can produce heat when shining upon.It is true that the heat collector 21 can be full-glass solar energy thermal-arrest
Blank pipe, flat plate collector etc., but which is a technique known to those skilled in the art, and details are not described herein.The connecting pipe
22 are used to hot water being transported to the insulated water tank 30 from the heat collector 21, and cold water is conveyed from the insulated water tank 30
To the heat collector 21, to make to form a closed circuit between the heat collector 21 and the insulated water tank 30.It can think
To the solar energy heating component 20 further includes other some functional modules, such as bracket, mounting assembly, is answered
When for technology known by those skilled in the art, details are not described herein.
The insulated water tank 30 is the container for storing hot water, may include liner, insulating layer, shell etc..It is described
Liner is the pith for storing hot water, can be the materials such as stainless steel, enamel.The insulating layer can be imported polyurethane
Automate foam process heat preservation.The shell can be color steel plate, photo zincography of aluminizing, stainless steel plate etc..The insulated water tank 30 is wanted
Ask good heat insulation effect, corrosion-resistant, water cleaning, service life up to 20 years or more.It is understood that due to the solar energy
Thermal-arrest component 20 only can just carry out thermal-arrest when there is sunlight, therefore the insulated water tank 30 can be by the solar energy collection
Thermal energy preserves in hot component 20, then at night or temperature is cold when uses the hot water in the insulated water tank 30.
The water tank 40 is for holding medium for heating, such as oil or water.In the present embodiment, the water tank
40 for holding water.The water tank 40 can be Glass fabre reinforced plastic water tank, stainless steel water tank, galvanized steel plain sheet water tank etc..In this implementation
In example, the water tank 40 is stainless steel water tank.It is understood that the water tank 40 can be furnished with various function as needed
Energy threshold, water monitor or automatic cleaning system etc..The water tank 40 should also have water inlet pipe, outlet pipe, overflow pipe,
The functional units such as drainpipe, but which is a technique known to those skilled in the art, and details are not described herein.
The water route 50, which is connected between the water tank 40, water circulating pump 120 and pipeline 400, forms a closing
Circuit be made of with realizing the conveying of hot water pipeline, attachment and affiliated facility etc., but it is those skilled in the art institute
Known technology, details are not described herein.
The temperature detector 60 may include a temperature sensor, usually by temperature-sensing element (device) and signal processing
Unit composition, can detect the temperature signal of the water in the water tank 40 and regular be converted into temperature signal can according to certain
The device or device of the electric signal of output.In the present embodiment, the temperature detector 60 is for detecting the water tank
40 real time temperature.
The outlet conduit 80 is connected between the insulated water tank 30 and water tank 40, is used for 30 institute of insulated water tank
The hot water of offer enters in the water tank 40.Similarly, the outlet conduit 80 can also be by groups such as pipeline, attachment and affiliated facilities
At which is a technique known to those skilled in the art, and details are not described herein.
The first throttle valve 90 is arranged on the outlet conduit 80, and in the control lower switch of the control device 70
To control the on-off of water flow in the outlet conduit 80.The first throttle valve 90 can be solenoid valve, by the control device
Its connection of 70 controls disconnects.The first throttle valve 90, as a kind of prior art, is this field as a kind of valve sheet
Known by technical staff, details are not described herein.
The water supply pipeline 100 is connected between the insulated water tank 30 and water tank 40, is used for the water tank 40
In cold water be transported in the insulated water tank 30 and swap.The water supply pipeline 100 is by pipeline, attachment and affiliated facility etc.
Composition, which is a technique known to those skilled in the art, and details are not described herein.
The upper water water pump 110 is arranged on the water supply pipeline 100, for the water at low temperature in the water tank 40 is defeated
It is sent in the insulated water tank 30 and carries out heat exchange.The upper water water pump 110 can be a lifting pump, be a kind of prior art,
Which is a technique known to those skilled in the art, and details are not described herein.
The water circulating pump 120 is arranged on the water route 50, for driving the water tank 40, the water route 50, institute
The hot water stated between pipeline 400 and the function water pump 300 is recycled.The water circulating pump 120 is in the prior art
A kind of circulating pump is used for the circulating liquid in closed circuit.In the present embodiment, the water circulating pump 120 is described for making
Water in water tank 40 is all between the water tank 40, the water route 50, the pipeline 400 and the function water pump 300
And recycle with renewing to reach heating and keep the temperature the pipeline 400 and function water pump 300, it is practised by those skilled in the art
Know, details are not described herein.
The on-off valve 130 is arranged in the water route 50, to control the on-off of water flow in the water route 50.The on-off
Valve 130 can be solenoid valve, controlled its connection by the control device 70 or disconnected.The on-off valve 130 is used as valve itself
It is known by those skilled in the art, details are not described herein for a kind of prior art.
The principles and structure of the second throttle 140 is identical as first throttle valve 90, and including two.This two
Second throttle 140 is separately positioned on the influent side and water outlet side of the function water pump 300, is respectively used to control the function water
The water inlet and water outlet of pump 300, to avoid the water in water tank 40 when the water circulating pump 120 work from the function water pump 300
Influent side and water outlet side spill out without enter the function water pump 300.
The control device 70 are combined as a kind of prior art by multiple electrical components, at signal or data
Manage device, single-chip microcontroller, programmable controller, memory, amplifier etc..It is understood that the control device 70 is loaded with
Program is controlled, can be write by computer language, such as assembler language, VC or VB etc..As for the controlling extent itself, originally
Field technical staff is only it is to be understood that the technical solution of the utility model can use above-mentioned language to write out corresponding program
Language, details are not described herein.The water tank 40 that the control device is detected for the temperature detector 60
Real time temperature and the temperature reference value, and according to comparison result control the upper water water pump 110, the first, second throttle valve 90,
140, the operating status of on-off valve 130 and the water circulating pump 120.Described in detected by the temperature detector 60
When 40 real time temperature of water tank is more than or equal to the temperature reference value of the water tank 40, illustrate the water tank 40 at this time
Water temperature can make in the pump house 200 for the function water pump 300 and pipeline 400 in the pump house 200 that heats or keep warm
Function water pump 300 and pipeline 400 will not be damaged because of freezing.At this point, the control device 70 controls the first throttle valve
90 disconnect, the upper water water pump 110 is out of service, the second throttle 140 disconnects, the on-off valve 130 is connected to, and starts
The water circulating pump 120 so that the water in the water tank 40 in the water tank 40, the water route 50, the pipeline 400, institute
It states and recycles between function water pump 300 with the function water pump 300 and pipeline 400 in the pump house 200 that heats and keep warm.
The real time temperature of the water tank 40 detected by the temperature detector 60 is less than the water tank 40
When temperature reference value, illustrate that the temperature in the pump house 200 is relatively low at this time, function water pump 300 and pipe in pump house 200 may be made
Road 400 is freezed, and needs to be promoted the temperature of the pump house 200, it is therefore desirable to by the delivery in the insulated water tank 30 to institute
Water tank 40 is stated, while the water at low temperature in the water tank 40 is output to the insulated water tank 30, so that the water storage
The coolant-temperature gage of case 40, which increases, carrys out pump house 200 described in heating warm-keeping.Therefore, the control device 70 controls the water circulating pump 120
The connection of out of service, described second throttle 140, the on-off valve 130 disconnect, and control the connection of first throttle valve 90 and
The upper starting of water water pump 110 is so that the hot water in the insulated water tank 30 is handed over the water at low temperature in the water tank 40
It changes and the water in the water tank 40 is heated up.
Compared with prior art, photo-thermal heating pump house pipeline warm-keeping device provided by the utility model is in pump house 200
Be provided with water tank 40, which connect with insulated water tank 30, be connected to the water tank 40 and function water pump 300 into
The water circulating pump 120 on the water route 50, and the cooperation water circulating pump is arranged in water route 50 between water side and water outlet side
120 on-off valves 130 and the first, second throttle valve 90,140 that can work normally with function water pump 300, so that the photo-thermal
Heating pump house pipeline warm-keeping device can use using solar energy heating component 20 water in the insulated water tank 30 heated, and make
With the water after heating come heating function water pump 300 and the pipeline being connected between function water pump 300 400, so that
The various function water pumps 300 of the pump house 200 and the water of pipeline 400 are not allowed to be also easy to produce the phenomenon that freezing and lead to nothing in low temperature
Method uses, while can also be to avoid not knowing that various function water pumps 300 and pipeline 400 in pump house etc. have frozen due to user
Or bursting by freezing and startup function water pump 300 cause various function water pumps 300 and pipeline 400 in pump house 200 to damage.
The above is only the preferred embodiments of the utility model, are not used to the limitation protection scope of the utility model, any
Modification, equivalent replacement or improvement within the spirit of the present invention etc. are all covered in the scope of the claims of the utility model.
Claims (5)
1. photo-thermal heating pump house pipeline warm-keeping device, the function water pump being used in heating and thermal insulation pump house and it is connected to function water pump
Between pipeline, it is characterised in that: the photo-thermal heating pump house pipeline warm-keeping device include an Initialize installation unit, one
Solar energy heating component on the pump house roof is set, an insulated water tank being connect with the solar energy heating component,
One water tank being set in the pump house, one group of setting is in the pump house and is connected to the pipeline and the water tank
Between water route, one for detecting the temperature detector of described water storage the temperature inside the box, one be connected to the insulated water tank and
Outlet conduit between the water tank, a first throttle valve being set on the outlet conduit, one be connected to it is described
Water supply pipeline between insulated water tank and the water tank, a upper water water pump being set on the water supply pipeline, one sets
The water circulating pump in the water route is set, two are set on the water route and are respectively arranged at the on-off of the water tank two sides
Valve, two second throttle for being set on the pipeline and being respectively arranged at function water pump two sides and one and institute
State the control device of temperature detector connection, the temperature base for the water that the Initialize installation unit is used to be arranged in the water tank
Quasi- value, the real time temperature and the temperature base of the pump house that the control device is detected for the temperature detector
Quasi- value, and the upper water water pump, first throttle valve, on-off valve, second throttle and the circulation are controlled according to comparison result
The operating status of water pump is to maintain the temperature in the pump house pipeline.
2. photo-thermal heating pump house pipeline warm-keeping device as described in claim 1, it is characterised in that: the solar energy heating component
Including a heat collector and one group of connecting pipe being connect with the insulated water tank.
3. photo-thermal heating pump house pipeline warm-keeping device as described in claim 1, it is characterised in that: the temperature reference value is zero
Any one value between 4 degree to 2 degree lower.
4. photo-thermal heating pump house pipeline warm-keeping device as described in claim 1, it is characterised in that: the temperature detector includes
One temperature sensor.
5. photo-thermal heating pump house pipeline warm-keeping device as described in claim 1, it is characterised in that: distinguish at the both ends in the water route
It is arranged between two second throttle and function water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921646444.7U CN209622924U (en) | 2019-09-30 | 2019-09-30 | Photo-thermal heating pump house pipeline warm-keeping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921646444.7U CN209622924U (en) | 2019-09-30 | 2019-09-30 | Photo-thermal heating pump house pipeline warm-keeping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209622924U true CN209622924U (en) | 2019-11-12 |
Family
ID=68443445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921646444.7U Active CN209622924U (en) | 2019-09-30 | 2019-09-30 | Photo-thermal heating pump house pipeline warm-keeping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209622924U (en) |
-
2019
- 2019-09-30 CN CN201921646444.7U patent/CN209622924U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103123193B (en) | Defrosting device for closed type heat source tower | |
| CN109611936B (en) | Cross-season heating and hot water supply system with solar energy as unique heat supply source | |
| CN204830527U (en) | A solar energy heating system for green house ground temperature heats | |
| CN105402940A (en) | Modularized integrated control pipeline solar ground-source heat pump system | |
| CN102338477A (en) | Solar energy and air source heat pump combined water heater | |
| CN105605826A (en) | Air energy soil heat storage and cool storage device | |
| CN104456702A (en) | Full-glass tube type solar centralized hot water supplying system | |
| CN101865537B (en) | Solar heat pump water heater | |
| CN101839520B (en) | Solar-powered-air source heat-pump composite water heating system and control method thereof | |
| CN209622924U (en) | Photo-thermal heating pump house pipeline warm-keeping device | |
| CN209840250U (en) | Solar energy coupling soil source heat pump heating system for greenhouse | |
| CN208349386U (en) | The heating of photovoltaic energy coupling heat pump new energy, power generation, refrigeration system | |
| CN203413852U (en) | Novel energy-saving antifreezing solar water heater | |
| CN103940125B (en) | The control method of intelligent circulation antifreezing solar energy control system and this system | |
| CN212508520U (en) | Water-cooled gasoline engine | |
| CN201053774Y (en) | Double tube type instant type solar energy water heater | |
| CN207179768U (en) | The heating of plate type solar low temperature, domestic hot-water's energy conserving system | |
| CN208365712U (en) | A kind of cooling/warming system of solar energy integration air source heat pump | |
| CN108518782A (en) | A kind of cooling/warming system of solar energy integration air source heat pump | |
| CN201420277Y (en) | Low-temperature heating device of hydraulic excavator | |
| CN107101250A (en) | A kind of nocturnal temperature compensation device suitable for cold district solar energy heating system | |
| CN207907339U (en) | A kind of solar energy heating system in building | |
| CN207214231U (en) | A kind of solar energy heating system | |
| CN203473651U (en) | Constant-temperature automatic heating device of fuel tanker fuel storage tank | |
| CN207035276U (en) | A kind of nocturnal temperature compensation device suitable for cold district solar energy heating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |