CN207162688U - A kind of boiler heating system - Google Patents
A kind of boiler heating system Download PDFInfo
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- CN207162688U CN207162688U CN201721099189.XU CN201721099189U CN207162688U CN 207162688 U CN207162688 U CN 207162688U CN 201721099189 U CN201721099189 U CN 201721099189U CN 207162688 U CN207162688 U CN 207162688U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 96
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 332
- 238000007599 discharging Methods 0.000 claims abstract description 29
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 239000008400 supply water Substances 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 208000035126 Facies Diseases 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
A kind of boiler heating system, including boiler, boiler discharging tube, boiler blow-down water pipe, domestic hot-water's water system and heating system, first branch of the boiler discharging tube connects domestic hot-water's water system, and the second branch of the boiler discharging tube connects the heating system.Boiler heating system of the present utility model includes domestic hot-water's water system and heating system, and circuit design is reasonable, and pipeline is easy, supplying hot water and heating can be achieved using same boiler, energy utilization rate is high.
Description
Technical field
The utility model belongs to heating system field, more particularly to a kind of boiler heating system.
Background technology
With the enhancing of people's environmental consciousness, most of city substantially increases the demand of natural gas.Natural gas and coal facies
Than its environmental pollution is small, and cost is low, and the economic benefit as domestic fuel is also greater than industrial fuel.At the same time, people couple
Living standard quality is also increasingly paid attention to, especially northern in the winter of cold, Home Heating also into most of family must
Estovers.Present heating system is mainly by the way of boiler central heating, but because heat supplying pipeline designs unreasonable, the energy
Phenomena such as waste, is also widely present in existing heating system.Designing a set of rational heat supplying pipeline has wide market
Prospect.
Utility model content
Technical problem to be solved in the utility model is to overcome the shortcomings of to mention in background above technology and defect, there is provided
A kind of circuit design is reasonable, the high boiler heating system of energy utilization rate.In order to solve the above technical problems, the utility model proposes
Technical scheme be：
A kind of boiler heating system, including boiler, boiler discharging tube, boiler blow-down water pipe, domestic hot-water's water system are with supplying
Heating system, the first branch connection domestic hot-water's water system of the boiler discharging tube, the second of the boiler discharging tube
Branch connects the heating system；
Wherein, domestic hot-water's water system is included by domestic hot-water's thermal source water inlet pipe, water supply heat exchanger, domestic hot-water
Thermal source return pipe is sequentially connected in series the pipe-line system to be formed, and the water supply heat exchanger is also connected with client feed pipe and client backwater
Pipe, the water inlet end of domestic hot-water's thermal source water inlet pipe connect with the first branch of the boiler discharging tube, the domestic hot-water
The water side of thermal source return pipe connects the boiler blow-down water pipe；
The heating system includes being sequentially connected in series shape by heating source water inlet pipe, heating heat exchanger, heating source return pipe
Into pipe-line system, it is described heating heat exchanger be also connected with air conditioner water feed pipe and air conditioner water return pipe, the heat source tube water inlet pipe
Water inlet end connected with the second branch of the boiler discharging tube, the water side of the heating source return pipe connects the boiler
Return pipe.
In above-mentioned the utility model, it is preferred that the client feed pipe is provided with the first temperature with air conditioner water feed pipe
Sensor and second temperature sensor, the boiler discharging tube, domestic hot-water's water system and heating system junction be provided with according to
The boiler discharging tube high temperature water-carrying capacity is controlled according to the feedback data of first temperature sensor and second temperature sensor
The electric three-way regulating valves of distribution.
In above-mentioned the utility model, it is preferred that the boiler heating system also includes two level domestic hot-water's water system, institute
The pipe diameter for stating two level domestic hot-water's water system is less than the pipe diameter of domestic hot-water's water system, the two level life
Hot water supply system living includes being returned by two level domestic hot-water's thermal source water inlet pipe, two level water supply heat exchanger, two level domestic hot-water thermal source
Water pipe is sequentially connected in series the pipe-line system to be formed, the two level water supply heat exchanger connection two level client feed pipe and two level client
Return pipe, the water inlet end of the two level domestic hot-water thermal source water inlet pipe connect with domestic hot-water's thermal source water inlet pipe, and described two
The water side of level domestic hot-water's thermal source return pipe connects the boiler blow-down water pipe.
In above-mentioned the utility model, it is preferred that the two level domestic hot-water water system also includes a hot water filling pipe,
The hot water filling pipe connects with the two level domestic hot-water thermal source water inlet pipe.
In above-mentioned the utility model, it is preferred that be provided between the hot water filling pipe and the two level client feed pipe
Booster pump.
In above-mentioned the utility model, it is preferred that the two level client feed pipe is provided with three-temperature sensor, described
Two level domestic hot-water's thermal source water inlet pipe is provided with the feedback data according to the three-temperature sensor with hot water filling pipe connectivity part
Control the electric three-way regulating valves of the hot water filling pipe high temperature water-carrying capacity.
In above-mentioned the utility model, it is preferred that replenisher tank, the replenisher tank and institute are also communicated with the boiler blow-down water pipe
State and be provided with booster pump between boiler blow-down water pipe.
In above-mentioned the utility model, it is preferred that the boiler blow-down water pipe is provided with booster pump.
In above-mentioned the utility model, it is preferred that the water supply heat exchanger, heating heat exchanger and two level water supply heat exchanger are
Plate type heat exchanger.
Compared with prior art, the utility model has the advantage of：
1st, boiler heating system of the present utility model includes domestic hot-water's water system and heating system, and circuit design is closed
Reason, pipeline is easy, supplying hot water and heating can be achieved using same boiler, energy utilization rate is high.
2nd, requirement of the general boiler to water quality is higher, to prevent water in pot scale inside furnace, increases the potential safety hazard of boiler, this
Boiler water outlet does not connect directly with domestic hot-water's water system with the aqueous phase of heating system in utility model, but in client
Water supply heat exchanger is set with setting heating heat exchanger heat-shift to domestic hot-water's water system and heating system, it is ensured that enter
Enter the degree of purity of boiler blow-down water, can be directly entered boiler without carrying out purification to boiler blow-down water, can reduce in whole system
Number of devices, cost more saves.In addition, water supply heat exchanger is set with setting heating heat exchanger heat-shift to give in client
Domestic hot-water's water system and heating system, boiler water flow can also be overcome small but the shortcomings that temperature is high, by heat exchange,
The hot water of greater flow and moderate temperature can be provided the user.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are these
Some embodiments of utility model, for those of ordinary skill in the art, on the premise of not paying creative work, also
Other accompanying drawings can be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the utility model embodiment.
Marginal data：
1st, boiler；2nd, boiler discharging tube；3rd, boiler blow-down water pipe；4th, domestic hot-water's thermal source water inlet pipe；5th, domestic hot-water's thermal source
Return pipe；6th, water supply heat exchanger；7th, client feed pipe；8th, client return pipe；9th, heating source water inlet pipe；10th, heating is changed
Hot device；11st, heating source return pipe；12nd, air conditioner water feed pipe；13rd, air conditioner water return pipe；14th, the first temperature sensor；15、
Second temperature sensor；16th, two level domestic hot-water thermal source water inlet pipe；17th, two level water supply heat exchanger；18th, two level domestic hot-water heat
Source return pipe；19th, two level client feed pipe；20th, two level client return pipe；21st, hot water filling pipe；22nd, booster pump；23、
Three-temperature sensor；24th, replenisher tank.
Embodiment
For the ease of understanding the utility model, below in conjunction with Figure of description and preferred embodiment to the utility model
Work more comprehensively, meticulously describes, but the scope of protection of the utility model is not limited to embodiment in detail below.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to and limits this practicality
New protection domain.
Embodiment：
As shown in figure 1, the boiler heating system of the present embodiment, including boiler 1, boiler discharging tube 2, boiler blow-down water pipe 3, life
Hot water supply system and heating system living, the first branch connection domestic hot-water's water system of boiler discharging tube 2, boiler discharging tube
2 the second branch connection heating system；
Wherein, domestic hot-water's water system is included by domestic hot-water's thermal source water inlet pipe 4, water supply heat exchanger 6, domestic hot-water's heat
Source return pipe 5 is sequentially connected in series the pipe-line system to be formed, and water supply heat exchanger 6 is also connected with client feed pipe 7 and client return pipe
8, the water inlet end of domestic hot-water's thermal source water inlet pipe 4 connects with the first branch of boiler discharging tube 2, domestic hot-water's thermal source return pipe 5
Water side connection boiler blow-down water pipe 3；Heating system includes being returned by heating source water inlet pipe 9, heating heat exchanger 10, heating source
Water pipe 11 is sequentially connected in series the pipe-line system to be formed, and heating heat exchanger 10 is also connected with air conditioner water feed pipe 12 and air conditioner water return pipe
13, the water inlet end of heating source water inlet pipe 9 connects with the second branch of boiler discharging tube 2, the water outlet of heating source return pipe 11
End connection boiler blow-down water pipe 3.
In the present embodiment, boiler 1 come out high-temperature water not directly with domestic hot-water's water system and the water of heating system
It is connected, but sets water supply heat exchanger 6 to be supplied water with the setting heating heat-shift of heat exchanger 10 to domestic hot-water in client and be
System and heating system, it is ensured that into the degree of purity of the backwater in boiler 1.
In the present embodiment, client feed pipe 7 is provided with the first temperature sensor 14 and second with air conditioner water feed pipe 12
Temperature sensor 15, boiler discharging tube 2, domestic hot-water's water system and heating system junction are provided with according to the first TEMP
Device 14 and the electric three passes of the feedback data control boiler discharging tube 2 high temperature water-carrying capacity distribution of second temperature sensor 15 are adjusted
Valve.High-temperature water in boiler discharging tube 2 distributes to domestic hot-water's water system, heating system by triple valve, and client supplies water
Pipe 7 is provided with the first temperature sensor 14 with air conditioner water feed pipe 12 can be with the temperature of monitor client with second temperature sensor 15
Degree situation, then boiler discharging tube 2, domestic hot-water's water system and the electric three-way regulating valves of heating system junction are fed back to,
It can change into the hot water flow in domestic hot-water's water system, heating system, to meet the actual demand of user.Using temperature
Degree sensor can reduce manual operation, and error is smaller, the full-automatic accurate control of feasible system.
In the present embodiment, boiler heating system also includes two level domestic hot-water's water system, and two level domestic hot-water, which supplies water, is
The pipe diameter of system is less than the pipe diameter of domestic hot-water's water system, and two level domestic hot-water water system includes being lived by two level
Heat source of hot water water inlet pipe 16, two level water supply heat exchanger 17, two level domestic hot-water's thermal source return pipe 18 are sequentially connected in series the pipeline to be formed
System, two level water supply heat exchanger 17 connect two level client feed pipe 19 and two level client return pipe 20, two level domestic hot-water
The water inlet end of thermal source water inlet pipe 16 connects with domestic hot-water's thermal source water inlet pipe 4, the water outlet of two level domestic hot-water's thermal source return pipe 18
End connection boiler blow-down water pipe 3.Two level domestic hot-water's water system can be used alone, can also be same with domestic hot-water's water system
When use.Domestic hot-water supplies water and high-temperature water generally is supplied into client, then increases heat exchanger in client, due to two level life heat
The pipeline caliber of water supply system is less than the pipeline caliber of domestic hot-water's water system, can greatly reduce the heat in system pipeline
Water, the hot water amount of required circulation also greatly reduce, and can mitigate the heating pressure of boiler 1, and energy consumption is lower, meanwhile, pipeline
Caliber is smaller, and recirculated water is less, and smaller when thermal loss is compared to Large Diameter Pipeline during delivery, energy consumption is lower.In general, when
Hot water usage amount can close domestic hot-water's water system and enable two level domestic hot-water's water system when few.
In the present embodiment, two level domestic hot-water water system also includes a hot water filling pipe 21, hot water filling pipe 21 with
Two level domestic hot-water's thermal source water inlet pipe 16 is connected, and booster pump is provided between hot water filling pipe 21 and two level client feed pipe 19
22.When enabling two level domestic hot-water's water system, do not reach if there is the heat of the water in two level client feed pipe 19
When user requires, or it is in an emergency（Such as the failure of two level water supply heat exchanger 17）When, increase hot water filling pipe 21 can be direct
High-temperature water is passed through two level client feed pipe 19, the heat of the reclaimed water of increase two level client feed pipe 19.Booster pump 22 is set
Increase the pressure in hot water filling pipe 21, prevent the aqueous reflux in two level client feed pipe 19.
In the present embodiment, two level client feed pipe 19 is provided with three-temperature sensor 23, two level domestic hot-water's thermal source
Water inlet pipe 16 is provided with the feedback data control hot water filling pipe according to three-temperature sensor 23 with the connectivity part of hot water filling pipe 21
The electric three-way regulating valves of 21 high temperature water-carrying capacity.Three-temperature sensor 23 can dynamically monitor two level client feed pipe 19
The temperature of reclaimed water, when the temperature is too low, two level domestic hot-water's thermal source water inlet pipe 16 and hot water filling pipe 21 can be automatically fed to
The electric three-way regulating valves of connectivity part, the high-temperature water in two level domestic hot-water's thermal source water inlet pipe 16 is set to add the confession of two level client
Water pipe 19, to meet the actual demand of user.
In the present embodiment, replenisher tank 24 is also communicated with boiler blow-down water pipe 3, is set between replenisher tank 24 and boiler blow-down water pipe 3
There is booster pump 22.Set replenisher tank 24 to give the moisturizing of boiler 1 automatically, can be automatically replenished when the water shortage in boiler 1, met
The water requirement of boiler 1.
In the present embodiment, boiler blow-down water pipe 3 is provided with booster pump 22.Booster pump 22 can increase the pressure in pipeline, can
To accelerate the flowing of water, it is easy to add boiler blow-down water in boiler 1.
In the present embodiment, water supply heat exchanger 6, heating heat exchanger 10 and two level water supply heat exchanger 17 are plate type heat exchanger.
Plate type heat exchanger heat exchange efficiency is high, it is ensured that the high-temperature water in boiler 1 transfers heat to domestic hot-water's water system with supplying
Heating system.
When using the boiler heating system of the present embodiment, boiler 1 heats shape by the natural gas that burns to the water in boiler 1
Into high-temperature water, high-temperature water is assigned in domestic hot-water's water system, two level domestic hot-water water system and heating system, is given respectively
User's domestic hot-water supply and heating.System in the present embodiment mainly has three bulks：Domestic hot-water's water system, two level life heat
Water supply system and heating system, in general, domestic hot-water's water system measure big situation, two level life for hot water demand
Hot water supply system measures small situation for hot water demand, and heating system has the situation of demand for user with heating.Such as in the winter
In season, user has demand to domestic hot-water's water system, heating system, and user is more to hot water demand's amount, now, two level life
The water inlet end and the triple valve of the connectivity part of domestic hot-water's thermal source water inlet pipe 4 of heat source of hot water water inlet pipe 16 living do not give two level domestic hot-water
Hot water, and the valve accordingly closed on two level domestic hot-water's thermal source return pipe 18, boiler discharging tube 2 are provided in thermal source water inlet pipe 16
In high-temperature water domestic hot-water's water system, heating system are distributed to by triple valve.When to summer, user is to hot water
Demand is not very big, and does not have demand to heating system, can select to close domestic hot-water's water system, heating system, and
Two level domestic hot-water's water system is only opened, now, boiler discharging tube 2, domestic hot-water's thermal source water inlet pipe 4 and heating source are intake
The triple valve of the connectivity part of pipe 9 does not provide high-temperature water, the water inlet end of two level domestic hot-water's thermal source water inlet pipe 16 and life to heating system
The triple valve of the connectivity part of heat source of hot water water inlet pipe 4 living simultaneously closes off life not to hot water is provided in domestic hot-water's thermal source water inlet pipe 4
Motor regulated valve on heat source of hot water return pipe 5, air conditioner water return pipe 13, whole system only have two level domestic hot-water water supply system
System, when the heat for the water in two level client feed pipe 19 occur, which does not reach user, to be required, or is in an emergency（Such as two level
The failure of water supply heat exchanger 17）When, high-temperature water directly can be passed through two level client feed pipe 19 by increase hot water filling pipe 21, be increased
Add the heat of the reclaimed water of two level client feed pipe 19.In season in spring and autumn, user does not have demand with heating system, but when washing one's face and rinsing one's mouth at night
There may be larger demand to hot water amount, but daytime or night are not very big to the demand of hot water, can now close heating
System, domestic hot-water's water system is opened when big to hot water demand's amount at night, and close two level domestic hot-water and supply water and be
System, daytime or night to the demand of hot water is not very big when, two level domestic hot-water's water system can be opened, and close life
Hot water supply system living.
Boiler heating system circuit design in the present embodiment is reasonable, and pipeline is easy, can be achieved to supply using same boiler 1
Hot water and heating, energy utilization rate are high.Cell, hotels and other places are can be widely applied to, there is wide market value.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (9)
1. a kind of boiler heating system, it is characterised in that including boiler（1）, boiler discharging tube（2）, boiler blow-down water pipe（3）, it is raw
Hot water supply system and heating system living, the boiler discharging tube（2）The first branch connect domestic hot-water's water system,
The boiler discharging tube（2）The second branch connect the heating system；
Wherein, domestic hot-water's water system is included by domestic hot-water's thermal source water inlet pipe（4）, water supply heat exchanger（6）, life heat
Hydro-thermal source return pipe（5）It is sequentially connected in series the pipe-line system to be formed, the water supply heat exchanger（6）It is also connected with client feed pipe（7）
With client return pipe（8）, domestic hot-water's thermal source water inlet pipe（4）Water inlet end and the boiler discharging tube（2）First
Branch connects, domestic hot-water's thermal source return pipe（5）Water side connect the boiler blow-down water pipe（3）；
The heating system is included by heating source water inlet pipe（9）, heating heat exchanger（10）, heating source return pipe（11）Successively
The pipe-line system that series connection is formed, the heating heat exchanger（10）It is also connected with air conditioner water feed pipe（12）With air conditioner water return pipe
（13）, the heating source water inlet pipe（9）Water inlet end and the boiler discharging tube（2）The second branch connection, the heating
Thermal source return pipe（11）Water side connect the boiler blow-down water pipe（3）.
2. boiler heating system according to claim 1, it is characterised in that the client feed pipe（7）With air conditioner water
Feed pipe（12）It is provided with the first temperature sensor（14）With second temperature sensor（15）, the boiler discharging tube（2）, life
Hot water supply system is provided with according to first temperature sensor with heating system junction（14）With second temperature sensor
（15）Feedback data control the boiler discharging tube（2）The electric three-way regulating valves of high temperature water-carrying capacity distribution.
3. boiler heating system according to claim 1 or 2, it is characterised in that the boiler heating system also includes two
Level domestic hot-water's water system, the pipe diameter of the two level domestic hot-water water system are less than domestic hot-water's water system
Pipe diameter, the two level domestic hot-water water system include by two level domestic hot-water's thermal source water inlet pipe（16）, two level supply water
Heat exchanger（17）, two level domestic hot-water's thermal source return pipe（18）The pipe-line system to be formed is sequentially connected in series, the two level, which supplies water, to exchange heat
Device（17）Connect two level client feed pipe（19）With two level client return pipe（20）, the two level domestic hot-water thermal source water inlet
Pipe（16）Water inlet end and domestic hot-water's thermal source water inlet pipe（4）Connection, the two level domestic hot-water thermal source return pipe（18）
Water side connect the boiler blow-down water pipe（3）.
4. boiler heating system according to claim 3, it is characterised in that the two level domestic hot-water water system is also wrapped
Include a hot water filling pipe（21）, the hot water filling pipe（21）With the two level domestic hot-water thermal source water inlet pipe（16）Connection.
5. boiler heating system according to claim 4, it is characterised in that the hot water filling pipe（21）With the two level
Client feed pipe（19）Between be provided with booster pump（22）.
6. boiler heating system according to claim 4, it is characterised in that the two level client feed pipe（19）On set
There is three-temperature sensor（23）, the two level domestic hot-water thermal source water inlet pipe（16）With hot water filling pipe（21）Connectivity part is provided with
According to the three-temperature sensor（23）Feedback data control the hot water filling pipe（21）High temperature water-carrying capacity it is electronic
Three-way control valve.
7. boiler heating system according to claim 1 or 2, it is characterised in that the boiler blow-down water pipe（3）On also connect
There is replenisher tank（24）, the replenisher tank（24）With the boiler blow-down water pipe（3）Between be provided with booster pump（22）.
8. boiler heating system according to claim 1 or 2, it is characterised in that the boiler blow-down water pipe（3）It is provided with and increases
Press pump（22）.
9. boiler heating system according to claim 1 or 2, it is characterised in that the water supply heat exchanger（6）, heating change
Hot device（10）With two level water supply heat exchanger（17）It is plate type heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721099189.XU CN207162688U (en) | 2017-08-30 | 2017-08-30 | A kind of boiler heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721099189.XU CN207162688U (en) | 2017-08-30 | 2017-08-30 | A kind of boiler heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207162688U true CN207162688U (en) | 2018-03-30 |
Family
ID=61719688
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721099189.XU Active CN207162688U (en) | 2017-08-30 | 2017-08-30 | A kind of boiler heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207162688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089325A (en) * | 2019-12-16 | 2020-05-01 | 南京紫航软件科技有限公司 | Boiler heat supply system and heat supply method thereof |
-
2017
- 2017-08-30 CN CN201721099189.XU patent/CN207162688U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111089325A (en) * | 2019-12-16 | 2020-05-01 | 南京紫航软件科技有限公司 | Boiler heat supply system and heat supply method thereof |
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