CN206320957U - A kind of self-supply type sewage source heat pump system - Google Patents
A kind of self-supply type sewage source heat pump system Download PDFInfo
- Publication number
- CN206320957U CN206320957U CN201621380321.XU CN201621380321U CN206320957U CN 206320957 U CN206320957 U CN 206320957U CN 201621380321 U CN201621380321 U CN 201621380321U CN 206320957 U CN206320957 U CN 206320957U
- Authority
- CN
- China
- Prior art keywords
- water
- intermediary
- source
- hot water
- pump
- 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
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
Landscapes
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The utility model proposes a kind of self-supply type sewage source heat pump system, belong to energy-conserving and environment-protective technical fiel, including source pump, hot water circulating pump, intermediary's water-circulating pump, duct type sewage heat exchanger, energy storage water tank, auxiliary thermal source, auxiliary thermal source exits and entrances valve group, source pump hot water side exits and entrances valve group and corresponding connecting pipe;Source pump is connected by source pump hot water side exits and entrances valve group, hot water circulating pump, hot water return pipe and feed pipe with water appliance;Auxiliary thermal source accesses hot water return pipe and feed pipe by auxiliary thermal source exits and entrances valve group, auxiliary thermal source return pipe and feed pipe;Duct type sewage heat exchanger is connected by energy storage water tank, intermediary's water return pipe and feed pipe, intermediary's water-circulating pump with source pump;The utility model reclaims the low grade heat energy in building itself sewage effluent by source pump, duct type sewage heat exchanger and for building produces domestic hot-water, is completed completely inside project, without examination & approval, easy to implement, stable.
Description
Technical field
The utility model belongs to energy-conserving and environment-protective technical fiel, more particularly to a kind of self-supply type sewage source heat pump system.
Background technology
Sewage source heat pump system in current industry, is all that, from the water intaking of municipal wastewater trunk canal, difficulty of construction is big, fetches water and moves back
(row) drainage facility is constructed outside project land red-line, and examination and approval procedures are complicated, influences the duration.As shown in figure 1, being traditional dirt
The overall structure of water source heat pump system and arrangement schematic diagram, during 07 is project land red-line, other facilities, water lift well 01, water-break
Well 02, sewage feed pipe 03, sewage move back (row) water pipe 04 and are required to be arranged in beyond project land red-line 07, and examination and approval procedures are complicated
Cycle is long, and it is more to be related to other specialized engineerings outside land red-line in addition, and Coordination is big, and construction is complicated, required high cost;The sewage
The position in trunk canal 05 is fixed (belonging to municipal works), and some projects have farther out or between trunk canal and project apart from trunk sewer
Barrier, will be unable to use sewage source heat pump;Heat pump computer room 06 is substantially in red line, each side side such as construction, coordination
Just;In addition, in traditional sewage source heat pump system sewage heat exchanger to take heat pump machine room area big, influence monolithic architecture layout or
Increase investment.
Utility model content
The purpose of this utility model is in order to overcome all difficulties constructed outside project land red-line, while obtaining the duration
To guarantee, there is provided a kind of self-supply type sewage source heat pump system;Using the utility model system, completely in project land red-line
Portion constructs, easy to implement, without examination & approval, and the duration can ensure;Secondly, the system reduces heat pump computer room floor space, and reduction is thrown
Money, the application of sewage source heat pump system is added, in addition, the system adds auxiliary thermal source, it is ensured that system operation it is steady
It is qualitative.
The utility model proposes a kind of self-supply type sewage source heat pump system, the system include source pump, hot water circuit
Pump, intermediary's water-circulating pump, source pump hot water side exits and entrances valve group, hot water return pipe, hot water feeding pipe, intermediary's water backwater
Pipe, intermediary's water feed pipe, it is characterised in that also including duct type sewage heat exchanger, energy storage water tank, auxiliary thermal source, auxiliary thermal source
Return pipe, auxiliary thermal source feed pipe, auxiliary thermal source exits and entrances valve group, the auxiliary thermal source exits and entrances valve group and source pump
Hot water side exits and entrances valve group respectively includes one outlet valve and an inlet valve;The annexation of each part is:
One end of hot water return pipe passes through hot water circulating pump, the inlet valve of source pump hot water side exits and entrances valve group and heat
The hot water inlet of pump assembly is connected, and the other end of hot water return pipe and the backwater main pipeline of user terminal are connected;Source pump
Hot water outlet is connected by the outlet valve of source pump hot water side exits and entrances valve group with one end of hot water feeding pipe, and hot water is supplied
The other end of water pipe and the water appliance of user terminal are connected;
One end of intermediary's water return pipe is connected by intermediary's water-circulating pump with the cooling water inlet of source pump, source pump
Cooling water outlet be connected by intermediary's water feed pipe with the water inlet of duct type sewage heat exchanger, duct type sewage heat exchanger
Delivery port is connected by energy storage water tank with the other end of intermediary water return pipe;
The water inlet of auxiliary thermal source passes through auxiliary thermal source return pipe, the inlet valve and hot water of auxiliary thermal source exits and entrances valve group
Return pipe is connected, and the delivery port of auxiliary thermal source passes through auxiliary thermal source feed pipe, the outlet valve of auxiliary thermal source exits and entrances valve group
It is connected with hot water feeding pipe.
The characteristics of the utility model and beneficial effect:
The utility model is reclaimed in building itself sewage effluent by devices such as source pump, duct type sewage heat exchangers
Low grade heat energy, for building producing domestic hot-water, while for household uses such as bathings, reduce to other energy
Consumption.For sweeping residential quarters, quantity of wastewater effluent is big, and recovery waste heat can also be local single building heating, refrigeration;
Using the utility model system, complete, without examination & approval, implement very convenient completely inside project.In addition, the system device increases
Auxiliary thermal source is added, it is ensured that the stability of system operation.
Brief description of the drawings
Fig. 1 is the overall structure and arrangement schematic diagram of traditional sewage source heat pump system.
Fig. 2 is the overall structure diagram of the utility model system.
Fig. 3 (a) is the structural representation that the utility model duct type sewage heat exchanger is located at not a node;Fig. 3 (b) is this
Utility model duct type sewage heat exchanger is located at the structural representation at node.
Embodiment
The utility model proposes a kind of self-supply type sewage source heat pump system, with reference to drawings and Examples describe in detail such as
Under:
The utility model self-supply type sewage source heat pump system, structure are as shown in Fig. 2 the system mainly includes:Source pump
1st, hot water circulating pump 2, intermediary's water-circulating pump 3, duct type sewage heat exchanger 4, energy storage water tank 5, auxiliary thermal source 6, auxiliary thermal source enter
Outlet valve group 7 (each one of inlet valve, outlet valve, open or close simultaneously), (import of source pump hot water side exits and entrances valve group 8
Each one of valve, outlet valve, is opened or closed simultaneously), hot water return pipe 10, hot water feeding pipe 11, intermediary's water return pipe 16, intermediary water supplies
Water pipe 17, auxiliary thermal source return pipe 20, auxiliary thermal source feed pipe 21;Retouched respectively from hot water side, intermediary's water side and auxiliary thermal source side
State the annexation of above-mentioned part:
Hot water side:One end of hot water return pipe 10 passes through hot water circulating pump 2, source pump hot water side exits and entrances valve group 8
Inlet valve be connected with the hot water inlet 12 of source pump 1;The hot water outlet 13 of source pump 1 passes through source pump hot water side
The outlet valve of exits and entrances valve group 8 is connected with one end of hot water feeding pipe 11;The other end and user terminal of hot water feeding pipe 11
Water appliance connection, the backwater main pipeline of the other end of hot water return pipe 10 and user terminal connects;
Intermediary's water side:One end of intermediary's water return pipe 16 passes through intermediary's water-circulating pump 3 and the cooling water inlet 14 of source pump 1
It is connected;The phase of water inlet 18 that the cooling water outlet 15 of source pump 1 passes through intermediary's water feed pipe 17 and duct type sewage heat exchanger 4
Connection;The delivery port 19 of duct type sewage heat exchanger 4 is connected by energy storage water tank 5 with the other end of intermediary water return pipe 16;
Auxiliary thermal source side:The water inlet 22 of auxiliary thermal source 6 passes through auxiliary thermal source return pipe 20, auxiliary thermal source exits and entrances valve
The inlet valve of group 7 is connected with hot water return pipe 10;The delivery port 23 of auxiliary thermal source 6 passes through auxiliary thermal source feed pipe 21, auxiliary
The outlet valve of thermal source exits and entrances valve group 7 is connected with hot water feeding pipe 11.
Shown in structure such as Fig. 3 (a) of the duct type sewage heat exchanger 4, the heat exchanger is by multiple duct type heat exchanger lists
Member is spliced successively, and the length of each duct type heat exchanger unit is not less than 2m, each duct type heat exchanger unit by
Draining inner tube 41 and the intermediary's water outer tube 42 being enclosed within the outside of the plumbing inner tube 41 are constituted, and the length of the plumbing inner tube 41 is big
In the length of its outside intermediary water outer tube 42, the plumbing inner tube both ends open and provided with flange connector 44, intermediary's water
The two ends of outer tube 42 are closed and are fixedly connected with outside the side wall of plumbing inner tube 41, above and below the side wall of intermediary's water outer tube 42
End is respectively provided on two sides with water inlet, delivery port;Between being provided between the tube wall of intermediary's water outer tube 42 and the tube wall of plumbing inner tube 41
Away from the spacing is not less than 5mm;Two upper and lower ports of plumbing inner tube 41 of adjacent channel formula heat exchanger unit are connected by flange
Part 44 is connected;The water inlet of the Liang Ge intermediaries water outer tube 42 of adjacent channel formula heat exchanger unit passes through provided with flange with delivery port
Intermediary's water overcoat pipe connected pipe 43 of connector 44 is connected;Intermediary's water overcoat in the duct type heat exchanger unit of two terminals
The water inlet 18 of pipe 42, delivery port 19 are connected with intermediary water feed pipe 17, energy storage water tank 5 respectively.
(such as Fig. 3 when the duct type heat exchanger unit, which is located at, to be needed at the nodes such as connection sanitary apparatus, threeway or elbow
(b) shown in), the duct type sewage heat exchanger also include one or more supplying drainages 45, the both ends open of supplying drainage 45 and
Provided with flange connector 44, it is connected to by flange connector 44 in two plumbing of the adjacent channel formula heat exchanger unit
Between pipe 41, the side wall of supplying drainage 45 is provided with connection interface tube, for connecting required sanitary apparatus, threeway or elbow section
Point;Intermediary's water outer tube 42 in the duct type heat exchanger unit at the two ends of supplying drainage 45 connects still through provided with flange
Intermediary's water overcoat pipe connected pipe 43 of fitting 44 is connected, i.e., using intermediary's water intermediate connection tube 43 across each node, is protected
The circulation for demonstrate,proving intermediary's water in the duct type sewage heat exchanger is unimpeded.
The mounting means of duct type sewage heat exchanger 4 can be determined according to actual conditions, can be hung down during for soil stack
It is straight to install, it can be horizontally mounted during for horizontal pipe;Installation site can be in building pipe well or in furred ceiling.Each described pipe
The length of road formula heat exchanger unit, the length of supplying drainage 45, the tube wall of intermediary's water outer tube 42 and the tube wall of plumbing inner tube 41
Spacing is calculated according to project reality and determined;The specification of duct type sewage heat exchanger 4 depends on plumbing inner tube 41, according to item
Spacing between the size and the tube wall of intermediary's water outer tube 42 and the tube wall of plumbing inner tube 41 of mesh feature design plumbing inner tube 41,
Calculate the diameter for determining intermediary's water outer tube 42 and intermediary's water overcoat pipe connected pipe 43;Possesses pipe laying formula sewage heat exchanger bar
The pipeline section of part, not less than DN50, (if caliber is too small, production and processing has no problem its minimum diameter of plumbing inner tube 41, still
Residual heat resources are limited, without recovery value, and mostly branch pipe, and installing space is limited).
Operation principle of the present utility model:
Source pump 2 absorbs the low grade heat energy in sewage by intermediary's water and duct type sewage heat exchanger 4, for adding
Hot domestic hot-water.
Specific workflow of the present utility model is:
Domestic hot-water's backwater in user terminal backwater main pipeline passes through return pipe 10, hot water circulating pump 2, source pump hot water
The inlet valve of side exits and entrances valve group 8 enters source pump 1 from the hot water inlet 12 of source pump 1, and domestic hot-water's backwater exists
After being heated up in source pump 1, flowed out from the hot water outlet 13 of source pump 1, pass through source pump hot water side exits and entrances valve group 8
Outlet valve, hot water feeding pipe 11 supply user terminal, be connected with its water appliance;Using the power of hot water circulating pump 2, pass through heat
Water return pipe 10, source pump hot water side exits and entrances valve group 8, hot water feeding pipe 11, realize hot water in user terminal and heat pump machine
Circulating-heating between group 1;Intermediary's water flows out from the delivery port 19 of duct type sewage heat exchanger 4, passes through energy storage water tank 5, intermediary
The heat that water return pipe 16, intermediary's water-circulating pump 3 enter in the cooling water inlet 14 of source pump 1, intermediary's water is inhaled by source pump 1
Temperature is reduced after receipts, is then flowed out from the cooling water outlet 15 of source pump 1, intermediary's water after cooling passes through intermediary's water feed pipe 17
From the flow ipe formula sewage heat exchanger 4 of water inlet 18 of duct type sewage heat exchanger 4, in duct type sewage heat exchanger 4, intermediary
Water is exchanged heat with sewage, and the heat transfer of sewage gives intermediary's water, from the water outlet of duct type sewage heat exchanger 4 after intermediary's water heating
Mouth 19 is flowed out, and completion is circulated next time;The circulation power of intermediary's water comes from intermediary's water-circulating pump 3.
In actual applications, the instability of flow of sewage, changes with the change of user terminal, and the consumption of hot water is also unstable
It is fixed, in order to ensure the balance of supply and demand, source pump frequent starting is prevented, increases intermediary's water using energy storage water tank 5
Water capacity;When the flow of sewage is big, the demand hour of hot water, unnecessary heat can be stored in energy storage water tank 5;Work as sewage
Flow is small, and when hot water demand's amount is big, insufficient section can be provided by energy storage water tank 5, it is ensured that the dynamic equilibrium of supply and demand, make this reality
It is stable with novel system.
The heat of sewage is transmitted to source pump 1 by intermediary's water, and heat is reclaimed during blowdown, for heating life
Hot water, meets project itself hot water demand, realizes automatically supplying for hot water energy resource consumption.According to the characteristics of project, in order to improve
The stability of hot water supply, adds auxiliary thermal source 6, is entered by auxiliary thermal source exits and entrances valve group 7 and source pump hot water side
Outlet valve group 8, is changed between auxiliary thermal source 6 and source pump 1.Specific translative mode:When duct type sewage heat exchanger 4 goes out
When intermediary's coolant-temperature gage at the mouth of a river 19 is less than 5 DEG C, opens auxiliary thermal source exits and entrances valve group 7, open auxiliary thermal source 6, close heat pump
Unit 1, source pump hot water side exits and entrances valve group 8, complete to run turn become to be run by auxiliary thermal source 6 by source pump 1
Change;When intermediary's coolant-temperature gage of the delivery port 19 of duct type sewage heat exchanger 4 is higher than 10 DEG C, opens source pump hot water side and import and export
Valve group 8, source pump 1, close auxiliary thermal source 6, auxiliary thermal source exits and entrances valve group 7, complete to be changed into from the operation of auxiliary thermal source 6
The conversion run by source pump 1.
The embodiment of the utility model critical piece describes in detail as follows:
1st, circulating pump, source pump are conventional standardized product, have many models available according to use condition difference;
2nd, the plumbing inner tube in duct type sewage heat exchanger, regular size DN50, DN70, DN80, DN100, DN125,
DN150、DN200;
3rd, energy storage water tank, material is carbon steel or stainless steel, and volume is determined according to project condition calculating, presses the mark of force container
Standard is manufactured;
4th, hot water pipeline can be using materials such as coating steel pipe, PP-R, PE-RT;Intermediary's waterpipe can be using welding steel
The materials such as pipe, seamless steel pipe, coating steel pipe.Caliber determines that various GB calibers can be used according to project condition calculating.
Claims (5)
1. a kind of self-supply type sewage source heat pump system, the system includes source pump, hot water circulating pump, intermediary's water-circulating pump, heat
Pump assembly hot water side exits and entrances valve group, hot water return pipe, hot water feeding pipe, intermediary's water return pipe, intermediary's water feed pipe, it is special
Levy and be, also supplied water including duct type sewage heat exchanger, energy storage water tank, auxiliary thermal source, auxiliary thermal source return pipe, auxiliary thermal source
Pipe, auxiliary thermal source exits and entrances valve group, auxiliary thermal source exits and entrances valve group and source pump the hot water side exits and entrances valve group
Respectively include one outlet valve and an inlet valve;The annexation of each part is:
One end of hot water return pipe passes through hot water circulating pump, the inlet valve and heat pump machine of source pump hot water side exits and entrances valve group
The hot water inlet of group is connected, and the other end of hot water return pipe and the backwater main pipeline of user terminal are connected;The hot water of source pump
Outlet is connected by the outlet valve of source pump hot water side exits and entrances valve group with one end of hot water feeding pipe, hot water feeding pipe
The other end and user terminal water appliance connect;
One end of intermediary's water return pipe is connected by intermediary's water-circulating pump with the cooling water inlet of source pump, source pump it is cold
Water out is connected by intermediary's water feed pipe with the water inlet of duct type sewage heat exchanger, the water outlet of duct type sewage heat exchanger
Mouthful it is connected by energy storage water tank with the other end of intermediary water return pipe;
The water inlet of auxiliary thermal source passes through auxiliary thermal source return pipe, the inlet valve of auxiliary thermal source exits and entrances valve group and hot water backwater
Pipe is connected, and the delivery port of auxiliary thermal source passes through auxiliary thermal source feed pipe, the outlet valve of auxiliary thermal source exits and entrances valve group and heat
Water feed pipe is connected.
2. self-supply type sewage source heat pump system as claimed in claim 1, it is characterised in that the duct type sewage heat exchanger by
Multiple duct type heat exchanger units are spliced successively, each duct type heat exchanger unit by plumbing inner tube and be enclosed within this to
Intermediary water outer tube composition on the outside of draining inner tube, the plumbing inner tube both ends open and provided with flange connector, intermediary's water
The two ends of outer tube are closed and are fixedly connected with outside the side wall of plumbing inner tube, intermediary's water overcoat tube side wall upper and lower end parts two
Side is respectively equipped with water inlet, delivery port;Spacing is provided between intermediary's water overcoat tube wall and plumbing inner pipe wall;Adjacent channel
Two plumbing inner tube upper and lower ports of formula heat exchanger unit are connected by flange connector;Adjacent channel formula heat exchanger unit
The water inlet of Liang Ge intermediaries water outer tube is connected with delivery port by intermediary's water overcoat pipe connected pipe provided with flange connector;Position
In the water inlet of intermediary's water outer tube, delivery port in the duct type heat exchanger unit of two terminals respectively with intermediary water feed pipe,
Energy storage water tank is connected.
3. self-supply type sewage source heat pump system as claimed in claim 2, it is characterised in that each duct type heat exchanger unit
Length is not less than outside 2m, and length of the length more than its outside intermediary water outer tube of each plumbing inner tube, intermediary's water
The spacing for covering tube wall and plumbing inner pipe wall is not less than 5mm;The plumbing inner tube is identical with intermediary water outer tube material,
Its wall thickness is not less than 1mm.
4. self-supply type sewage source heat pump system as claimed in claim 2 or claim 3, it is characterised in that the duct type sewage heat change
Device also including one or more supplying drainages, the supplying drainage both ends open and provided with flange connector, passes through flange connector
It is connected between two plumbing inner tubes of the adjacent channel formula heat exchanger unit, the plumbing tube side wall connects provided with connection
Mouthful;Material, caliber and the wall thickness of the supplying drainage are identical with plumbing inner tube.
5. self-supply type sewage source heat pump system as claimed in claim 1, it is characterised in that the auxiliary thermal source exits and entrances valve
Inlet valve, outlet valve in group and source pump hot water side exits and entrances valve group are opened or while close simultaneously respectively, and auxiliary thermal source
Exits and entrances valve group and source pump hot water side exits and entrances valve group one open-one close.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621380321.XU CN206320957U (en) | 2016-12-15 | 2016-12-15 | A kind of self-supply type sewage source heat pump system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201621380321.XU CN206320957U (en) | 2016-12-15 | 2016-12-15 | A kind of self-supply type sewage source heat pump system |
Publications (1)
Publication Number | Publication Date |
---|---|
CN206320957U true CN206320957U (en) | 2017-07-11 |
Family
ID=59267367
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201621380321.XU Active CN206320957U (en) | 2016-12-15 | 2016-12-15 | A kind of self-supply type sewage source heat pump system |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN206320957U (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106642813A (en) * | 2016-12-15 | 2017-05-10 | 北京华誉能源技术股份有限公司 | Self-sufficient sewage source heat pump system |
CN108006788A (en) * | 2017-11-28 | 2018-05-08 | 广东美的暖通设备有限公司 | Heat pump system, heat-production control method, computer equipment and readable storage medium storing program for executing |
-
2016
- 2016-12-15 CN CN201621380321.XU patent/CN206320957U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106642813A (en) * | 2016-12-15 | 2017-05-10 | 北京华誉能源技术股份有限公司 | Self-sufficient sewage source heat pump system |
CN108006788A (en) * | 2017-11-28 | 2018-05-08 | 广东美的暖通设备有限公司 | Heat pump system, heat-production control method, computer equipment and readable storage medium storing program for executing |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107490189A (en) | A kind of modularization pressure-bearing heat pump and its control method | |
CN206320957U (en) | A kind of self-supply type sewage source heat pump system | |
CN207162916U (en) | Novel energy-conserving immediately heating water heater system | |
CN207365408U (en) | A kind of modularization pressure-bearing heat pump system | |
CN206160500U (en) | Hanging is water route control device for stove | |
CN106642813A (en) | Self-sufficient sewage source heat pump system | |
CN107270742A (en) | Shower waste afterheat heat exchanger | |
CN204574236U (en) | A kind of secondary publilc baths waste water recycling system with Self-cleaning system | |
CN201246829Y (en) | Heat pump air conditioner system using immersed type corrugated pipe sewage water heat exchanger | |
CN104697199A (en) | Solar water heater partner having hot water while being opened | |
CN203066181U (en) | Bath water recycling system | |
CN204478549U (en) | One way of life water tank | |
CN207006324U (en) | A kind of big volume Two-way Cycle heating system | |
CN104006537B (en) | Automatic pollution discharge formula heat storage water tank | |
CN206269209U (en) | A kind of heating system of intelligent temperature monitoring | |
CN206321094U (en) | A kind of duct type heat exchanger | |
CN205383806U (en) | A tubular construction in pipe for solar energy | |
CN205373075U (en) | Adopt on -electrical auxiliary heat source's solar energy to concentrate indirect hot -water heating system | |
CN204665664U (en) | The publilc baths waste water recycling system that a kind of shower and bathing pool share | |
CN202521716U (en) | House non-cycle concentrated solar instant indirect hot-water system | |
KR102084242B1 (en) | Removing old pipes and supplying hot water and heating water using new pipes | |
CN106839076A (en) | A kind of double water tank heat exchanger | |
CN203980645U (en) | Automatic pollution discharge formula heat storage water tank | |
CN218565901U (en) | Quick refrigeration and quick heating conversion all-in-one machine | |
CN210035910U (en) | Solar water heating and heat collecting and user end gas water heater auxiliary heat coupling system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |