CN101377360B - Water-saving anti-freezing device of solar water heater system - Google Patents
Water-saving anti-freezing device of solar water heater system Download PDFInfo
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- CN101377360B CN101377360B CN200810156629XA CN200810156629A CN101377360B CN 101377360 B CN101377360 B CN 101377360B CN 200810156629X A CN200810156629X A CN 200810156629XA CN 200810156629 A CN200810156629 A CN 200810156629A CN 101377360 B CN101377360 B CN 101377360B
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 131
- 238000007710 freezing Methods 0.000 title claims abstract description 22
- 239000002184 metal Substances 0.000 claims description 13
- 229910052751 metal Inorganic materials 0.000 claims description 13
- 229920001971 elastomer Polymers 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 210000000664 rectum Anatomy 0.000 abstract description 3
- 230000000903 blocking effect Effects 0.000 abstract 1
- 230000011218 segmentation Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009172 bursting Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002528 anti-freeze Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- Steam Or Hot-Water Central Heating Systems (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a water-saving antifreezing device in an unseal type solar water heater system. The device mainly comprises an electric control valve and a bypass air duct, and is arranged below a water tank. An upper port and a lower port of the electric control valve are connected with water inlet mains and outlet mains of the water tank; or the upper port and the lower port of the electric control valve are respective provided with an upper connector and a lower connector which are respectively connected with the water inlet and the water outlet, and the water inlet mains and the water outlet mains of the water tank; the lower port of the bypass air duct is communicated with the water inlet mains and the water outlet mains at the lower end of the electric control valve or communicated with the lower connector; while the upper port of the bypass air duct runs through the mains at the upper end of the electric control valve or through the upper connector into the water tank, and the upper port is exposed above the overflow surface of the water body in the water tank and is communicated with the atmosphere via the overflow pipe of the water tank. The pipeline emptying function of the invention is more reliable, the pipes is frozen in winter, and hot water can be supplied instantly as the valve is turned on, therefore, the system has better water saving and anti-freezing effect; the failure rate of the system is low, and the service life is long. The invention effectively solves the problems that the latus rectums of the prior exhaust valves are small, easy gas blocking, easy impeded water flow and easy water leakage, and frozen plugging, and the like.
Description
Technical field
The present invention relates to the component devices of solar water heater system, the water-saving anti-freezing apparatus in the particularly non-enclosed solar water heater system.
Background technology
Present finding, the water heater storage tank of non-enclosed solar water heater system nearly all is to be installed on the roof of user's dwelling house, because of taking of its hot water is that potential energy by having high low head is realized.Each assembly of whole system must be formed by connecting by outdoor, interior conduit, as not taking to retain all the time in other measure, the pipeline water is arranged.So when the user need use hot water, all will bleed off ducted cold water earlier, could obtain to come from the hot water in the water heater storage tank, and finish using, ducted hot water fades to again and the corresponding cold water of environment temperature.Each such repetitive process, not only waste water resource, while are also wasted heat energy.Particularly, when the winter environment temperature often was lower than 0 ℃, the water in the yard piping can freeze again inevitably, caused pipeline " to freeze stifled ", even there is hot water can not flow to indoor use in the water heater storage tank, pipeline is also by bursting by freezing when serious.At above-mentioned existing problems, the manufacturing enterprise of China's solar water heater is all in the technical solution of seeking tube emptying, and following patented technology is representative.
Chinese patent notification number CN20096172Y discloses a kind of " the novel exhaust-valve of solar water heater ", and this technical scheme is that the check valve that communicates with atmosphere is installed under ball valve, to realize the emptying of water in the pipeline.Can reach the purpose of tube emptying on this exhaust-valve principle, but in use find its weak point, as: water was unimpeded inadequately after customer responsiveness was installed valve; Because of water row in the pipeline not to the utmost, still have and freeze stifled phenomenon winter; When taking hot water, water is unable to come down etc. sometimes.Analyze its reason, be the limited and performance of check valve latus rectum not too reliable due to, when storage tank is intake, check valve has seepage, freezes easily winter and loses air emptying function; Hot gas rises when taking hot water, in the pipeline, and check valve row do not fall, and causes the stifled water of not using of gas.
Chinese patent notification number CN2833280, a kind of " pipeline emptying valve for solar water heater " disclosed, this technical scheme is to produce the magnetic field identical with permanent magnet polarity by solenoid to produce mutual repulsive force, promote piston operation in the valve body, pipeline is communicated with atmosphere and carry out tube emptying.Use this technology also to have following defective through reality: emptying needs energising, in case the instantaneous power-off disabler; Hot water institute scaling can influence piston body and move reliability of operation; And permanent magnet As time goes on, the weak final reliability that influences the piston head switch in its magnetic field; The plastics steam hose that is adopted is immersed in for a long time and also easily causes water pollution etc. in the hot water except that inconvenience is installed.
This shows that the manufacturing enterprise of solar water heater is to be placed in the improved research of functional and reliability of valve all to main energy, and these improve the effect that does not obtain people's anticipation so far.
Summary of the invention
The present invention is based on solar water heater integrated system is studied, a kind of water-saving anti-freezing device of solar water heater system of proposition.This device is by changing the formation and the connected mode thereof of set of systems member, realizing described tube emptying, to reach the anti-freezing economical purpose of solar water heater system.
Technical solution of the present invention:
Water-saving anti-freezing apparatus of the present invention is arranged in the solar water heater system of being made up of storage tank, motor-operated control valve, intelligent controller, temperature sensor and indoor and outdoor connecting pipe, valve.This device is mainly constituted by motor-operated control valve and bypass wireway thereof, be positioned at the storage tank below, wherein, its upper and lower port of motor-operated control valve is connected among the storage tank Inlet and outlet water trunk line (hereinafter to be referred as trunk line), and the lower port of bypass wireway links to each other with the motor-operated control valve lower port and communicates; Its upper port is passed through, is entered in the storage tank from the trunk line of motor-operated control valve upper end, and its port exposure is on the spillwag chute of storage tank water body, and communicates with atmosphere by the overflow pipe of storage tank.
Further technical solution of the present invention:
(1) the upper and lower port of motor-operated control valve is respectively arranged with upper and lower connector, and the upper end of last connector is connected with the storage tank intake-outlet, and the lower end of lower connector is connected with trunk line; The lower port of bypass wireway links to each other with lower connector and communicates, and its upper port is passed through, entered in the storage tank from last connector, and its port exposure is on the spillwag chute of storage tank water body, and communicates with atmosphere by the overflow pipe of storage tank.
(2) at the indoor lowest part setting of the trunk line motor-driven valve that discharges water;
(3) on outdoor section of trunk line, temperature sensor is set.
Beneficial effect of the present invention:
(1) the present invention cancels the structure of the employing valve body realization system pipeline emptying of prior art, design the bypass wireway in parallel with motor-operated control valve, use through test, can guarantee also that under subzero 25 ℃ environmental condition pipeline is not frozen, its air emptying function is more reliable, solved effectively that existing exhaust-valve latus rectum is little, easily to produce gas water blockoff stream when using not smooth, or easy to leak, pipe drainage still can produce and freeze problems such as stifled during water inlet not to the utmost.
(2) the present invention is provided with the motor-driven valve that discharges water at the lowest part of indoor trunk line, yard piping is provided with temperature sensor, and discern and control according to the state of people's instructions for use, environment temperature, motor-operated control valve by intelligent controller, can guarantee when solar water heater does not use or the low state of environment temperature under, anhydrous in the pipeline of system, pipeline is not frozen, can accomplish that again valve supplies with once having opened hot water trickling, not only economize on water but also energy-conservation that the user uses very convenient.
(3) fitting type connector was connected with system's trunk line and bypass wireway about motor-operated control valve of the present invention can adopt, and was easy to install, safeguard, also helped taking the insulation measure.
(4) the designed bypass wireway of the present invention or be metal material or be the rubber material can the segment design manufacturing, and upper port is the inclined-plane setting, can prevents effectively that foreign material are stagnated and stop up bypass wireway, dependable performance, low, the long service life of fault rate.
Description of drawings
Fig. 1 is the structural representation of basic composition of the present invention;
Fig. 2 is provided with connector construction schematic diagram up and down for motor-operated control valve of the present invention;
Fig. 3 is the structural representation of component parts bypass wireway segmentation embodiment one of the present invention;
Fig. 4 is provided with the structural representation of embodiment two for component parts bypass wireway of the present invention segmentation;
Fig. 5 is provided with the structural representation of embodiment three for component parts bypass wireway of the present invention segmentation;
Fig. 6 is the structural representation of component parts motor-operated control valve of the present invention and last lower connector connected mode embodiment;
Fig. 7 is motor-operated control valve of the present invention and bypass wireway entire combination, and adopts the example structure schematic diagram of insulation measure.
The specific embodiment
As shown in Figure 1, 2, be basic composition structure of the present invention.Described water-saving anti-freezing apparatus is arranged in the solar water heater system of being made up of storage tank 1, motor-operated control valve 2, intelligent controller 3, the motor-driven valve 4 that discharges water, temperature sensor 5 and indoor and outdoor connecting pipe, valve.This device is mainly constituted by motor-operated control valve 2 and bypass wireway 6, is positioned at the below of storage tank 1.The upper and lower port of motor-operated control valve 2 is respectively arranged with connector 21, lower connector 22, and the upper end of last connector is connected with storage tank intake-outlet 11, and the lower end of lower connector is connected with trunk line 7; The lower port 61 of bypass wireway links to each other with lower connector and communicates, and its upper port 62 is passed through, entered in the storage tank from last connector, and its port exposure is on the spillwag chute 12 of storage tank water body, and communicates with atmosphere by the overflow pipe 13 of storage tank.The upper port 621 of bypass wireway is the inclined-plane, the 5-10 millimeter place of exposure on the spillwag chute 12 of storage tank water body.In addition: motor-operated control valve 2 set inner chambers are clear opening, and its preferred inside diameter ranges is the 12-14 millimeter; The bypass wireway is selected copper pipe or stainless metal tube, and external diameter is not more than 8 millimeters, and internal diameter is between the 2-6 millimeter.The present invention is at the lowest part setting of user's's indoor (representing with frame of broken lines among the figure) Inlet and outlet water trunk line 7 motor-driven valve 4 that discharges water.In addition, indoor pipeline gate valve 71, hot-water switch 72, cold water by-pass cock 73 and the water appliance 74 of also being provided with, intelligent controller 3 is installed in the appropriate position of indoor wall.For the temperature of accurate assurance system connecting pipe, outdoor Inlet and outlet water trunk line 7 is provided with temperature sensor 5.In addition: motor-operated control valve 2 of the present invention, the motor-driven valve 4 that discharges water, temperature sensor 5 all are controlled by intelligent controller 3, the sensible and discharging in implementation system pipeline water route.
As shown in Figure 3, be the embodiment one of water-saving anti-freezing apparatus component parts bypass wireway 6 of the present invention for segmentation setting, installation.As seen, bypass wireway 6 is divided into two sections among the figure, epimere 63, hypomere 64, and both are by sleeve pipe 65 one that is welded.
As shown in Figure 4, be the embodiment two of water-saving anti-freezing apparatus component parts bypass wireway 6 of the present invention for segmentation setting, installation.Among this embodiment, the pipeline section that the upper end section 66 of bypass wireway is crossing to from last connector 21 on the spillwag chute is that metal tube, bypass outer segment 67 are rubber tube, the upper end of rubber tube is connected with the overhanging outgoing interface of metal tube, the lower end of rubber tube is connected with lower connector 22 overhanging outgoing interfaces, and the junction adopts jump ring fastening.
As shown in Figure 5, be the embodiment three of water-saving anti-freezing apparatus component parts bypass wireway 6 of the present invention for segmentation setting, installation.Among this embodiment, the bypass wireway is made up of the L type metal tube 68 and the U type metal tube 69 of split, and L type metal tube is crossing on the spillwag chute from last connector 21; 90 degree flange are made at the two ends of U type metal tube, and the extending screw interface of offering through hole with each center that is provided with of last lower connector is connected by nut, and the junction compresses with rubber seal.
As shown in Figure 6, be the component parts motor-operated control valve of water-saving anti-freezing apparatus of the present invention and the embodiment of upper and lower connector connected mode.Among this embodiment, it is recessed poor that the location is offered at the two ends up and down of motor-operated control valve 2 respectively, in recessed being pickled with grains or in wine rubber seal is set.Be provided with lug 24, convex shoulder 25 on the last lower connector, offer through hole on the lug, convex shoulder and recessed poor corresponding applying.It is fastening with upper and lower connector and motor-operated control valve that bolt 26 passes hole that lug is opened.
As shown in Figure 7, among this embodiment, keeper 27 is set outside last connector, and with parts such as motor-operated control valve, upper and lower connector, bypass wireway place do in the shell 28 spacing fixing, be provided with recessed poor at the heat-insulation layer place of the water in-out port 11 of storage tank, with on the shell of recessed poor corresponding site convex shoulder is set, insulation material 8 fillings are between each building block.Described insulation material is a polyurethane foaming body.
With in conjunction with the accompanying drawings following, the implementation process of summary function of the present invention:
(1) system intakes to storage tank 1:
Opening conduits gate valve 71 and press intelligent controller and close the motor-driven valve 4 that discharges water, open motor-operated control valve 2, running water enters lower connector 22 along pipeline, divide two-way to enter the water heater storage tank, wherein most of water enters storage tank by motor-operated control valve, last connector; Fraction water is to enter storage tank by the bypass wireway.
(2) with system's Inlet and outlet water trunk line 7 emptyings:
When the water level of storage tank reaches the overflow control water surface, blanked-off pipe road gate valve 71, press intelligent controller and close motor-operated control valve 2, open the motor-driven valve 4 that discharges water, the water in the Inlet and outlet water trunk line enters sewer, air enters from the storage tank overfall, through bypass wireway 6 full trunk lines.
(3) take hot water from indoor water appliance 74:
Press intelligent controller, open motor-operated control valve 2, close the motor-driven valve 4 that discharges water, open hot-water switch 72, the hot water in the storage tank enters Inlet and outlet water trunk line 7 under the gravity effect, takes for water appliance 74.
(4) low temperature of system is antifreeze:
Arrive the environment temperature of system when low when winter, when being installed in temperature that the temperature sensor 5 on the Inlet and outlet water trunk line experienced and might freezing (0 ℃), intelligent controller will send instruction, close motor-operated control valve 2, open the motor-driven valve 4 that discharges water simultaneously and carry out the emptying of water in the trunk line, thereby the assurance system is in southern and northern cold winter, and that pipeline does not freeze is stifled, more can not be by bursting by freezing, and can have hot water normally to use.
(5) water-saving function of system:
System is at every turn when storage tank 1 water inlet, only need carry out single voiding, when repeatedly using thereafter, just there is flow of hot water to get off as long as open motor-operated control valve 2, when closing motor-operated control valve, ducted hot water is used up substantially, does not have cold water in the pipeline, accomplish truly " once having opened hot water ", it is energy-conservation again to economize on water.
To sum up, the present invention has reached the goal of the invention of expection.
Claims (7)
1. water-saving anti-freezing device of solar water heater system, be arranged at by storage tank (1), motor-operated control valve (2), intelligent controller (3), temperature sensor (5) and indoor and outdoor connecting pipe, in the solar water heater system that valve is formed, it is characterized in that: this device is mainly constituted by described motor-operated control valve (2) and bypass wireway (6) thereof, be positioned at the storage tank below, wherein, on the motor-operated control valve, lower port is connected among the storage tank Inlet and outlet water trunk line, and upper port is provided with connector (21), lower port is provided with lower connector (22), the upper end of last connector is connected in the storage tank intake-outlet (11) of storage tank and Inlet and outlet water trunk line junction, and the lower end of lower connector is connected with the Inlet and outlet water trunk line; The lower port of bypass wireway links to each other with lower connector and communicates, its upper port is passed through, enters in the storage tank from last connector, and its upper port is spillwag chute (12) the 5-10 millimeter place of inclined-plane exposure at the storage tank water body, and communicates with atmosphere by the overflow pipe (13) of storage tank; Described bypass wireway is divided into two sections, and epimere (63), hypomere (64) are by sleeve pipe (65) one that is welded.
2. water-saving anti-freezing device of solar water heater system, be arranged at by storage tank (1), motor-operated control valve (2), intelligent controller (3), temperature sensor (5) and indoor and outdoor connecting pipe, in the solar water heater system that valve is formed, it is characterized in that: this device is mainly constituted by described motor-operated control valve (2) and bypass wireway (6) thereof, be positioned at the storage tank below, wherein, on the motor-operated control valve, lower port is connected among the storage tank Inlet and outlet water trunk line, and upper port is provided with connector (21), lower port is provided with lower connector (22), the upper end of last connector is connected in the storage tank intake-outlet (11) of storage tank and Inlet and outlet water trunk line junction, and the lower end of lower connector is connected with the Inlet and outlet water trunk line; The lower port of bypass wireway links to each other with lower connector and communicates, its upper port is passed through, enters in the storage tank from last connector, and its upper port is spillwag chute (12) the 5-10 millimeter place of inclined-plane exposure at the storage tank water body, and communicates with atmosphere by the overflow pipe (13) of storage tank; The pipeline section that the upper end section of described bypass wireway (66) is crossing to from last connector (21) on the spillwag chute is a metal tube, bypass outer segment (67) is a rubber tube, the upper end of rubber tube is connected with the overhanging outgoing interface of metal tube, its lower end is connected with the overhanging outgoing interface of lower connector (22), and the junction adopts jump ring fastening.
3. water-saving anti-freezing device of solar water heater system, be arranged at by storage tank (1), motor-operated control valve (2), intelligent controller (3), temperature sensor (5) and indoor and outdoor connecting pipe, in the solar water heater system that valve is formed, it is characterized in that: this device is mainly constituted by described motor-operated control valve (2) and bypass wireway (6) thereof, be positioned at the storage tank below, wherein, on the motor-operated control valve, lower port is connected among the storage tank Inlet and outlet water trunk line, and upper port is provided with connector (21), lower port is provided with lower connector (22), the upper end of last connector is connected in the storage tank intake-outlet (11) of storage tank and Inlet and outlet water trunk line junction, and the lower end of lower connector is connected with the Inlet and outlet water trunk line; The lower port of bypass wireway links to each other with lower connector and communicates, its upper port is passed through, enters in the storage tank from last connector, and its upper port is spillwag chute (12) the 5-10 millimeter place of inclined-plane exposure at the storage tank water body, and communicates with atmosphere by the overflow pipe (13) of storage tank; Described bypass wireway is made up of the L type metal tube (68) and the U type metal tube (69) of split, and L type metal tube is crossing on the spillwag chute from last connector (21); 90 degree flange are made at the two ends of U type metal tube, and the extending screw interface of offering through hole with each center that is provided with of last lower connector is connected by nut, and the junction compresses with rubber seal.
4. according to each described water-saving anti-freezing device of solar water heater system of claim 1-3, it is recessed poor that described motor-operated control valve and upper and lower connector connected mode are that the location is offered at the two ends up and down of motor-operated control valve (2) respectively, in recessed being pickled with grains or in wine rubber seal is set, be provided with lug (24), convex shoulder (25) on the last lower connector, lug is offered through hole on (24), convex shoulder and recessed poor corresponding applying, bolt (26) passes hole that lug is opened, and upper and lower connector and motor-operated control valve is fastening.
5. according to each described water-saving anti-freezing device of solar water heater system of claim 1-3, the described connector of going up is provided with keeper (27) outward, and with motor-operated control valve, go up lower connector, bypass wireway place do in the shell (28) spacing fixing, be provided with recessed poorly at the heat-insulation layer place of the water in-out port (11) of storage tank, and on the shell of recessed poor corresponding site convex shoulder be set.
6. according to each described water-saving anti-freezing device of solar water heater system of claim 1-3, it is characterized in that: also be provided with the motor-driven valve that discharges water (4) in the described solar water heater system, be positioned at the indoor lowest part of storage tank Inlet and outlet water trunk line (7); Described temperature sensor (5) is arranged on outdoor section of storage tank Inlet and outlet water trunk line (7).
7. according to each described water-saving anti-freezing device of solar water heater system of claim 1-3, it is characterized in that: the set inner chamber of described motor-operated control valve (2) is a clear opening, and the internal diameter of set inner chamber clear opening is the 12-14 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810156629XA CN101377360B (en) | 2008-09-22 | 2008-09-22 | Water-saving anti-freezing device of solar water heater system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810156629XA CN101377360B (en) | 2008-09-22 | 2008-09-22 | Water-saving anti-freezing device of solar water heater system |
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| CN101377360A CN101377360A (en) | 2009-03-04 |
| CN101377360B true CN101377360B (en) | 2010-06-16 |
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| CN200810156629XA Active CN101377360B (en) | 2008-09-22 | 2008-09-22 | Water-saving anti-freezing device of solar water heater system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102128505B (en) * | 2011-03-25 | 2013-02-27 | 孙树飞 | Emptying device for solar water heater |
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Owner name: HUAIAN HENGXIN WATER TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: HUAI'AN YINGSUO ENERGY EQUIPMENT CO., LTD. Effective date: 20141030 |
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Effective date of registration: 20141030 Address after: 223005 Haikou Road, Jiangsu, China, No. 9, No. Patentee after: HUAIAN HENGXIN WATER TECHNOLOGY Co.,Ltd. Address before: 223005 Haikou Road, Huaian Economic Development Zone, Jiangsu, No. 9 Patentee before: Huaian Yingshuo Energy Equipment Co.,Ltd. |
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Address after: 223005 No. 9, Haikou Road, Huaian, Jiangsu Patentee after: JIANGSU HENGXIN NORKING TECHNOLOGY CO.,LTD. Address before: 223005 No.9 Haikou Road, Huai'an City, Jiangsu Province Patentee before: HUAIAN HENGXIN WATER TECHNOLOGY Co.,Ltd. |
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