CN103170177B - Condensate water processing system using permanent magnetic deironing filters, and designing method thereof - Google Patents
Condensate water processing system using permanent magnetic deironing filters, and designing method thereof Download PDFInfo
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- CN103170177B CN103170177B CN201110429685.8A CN201110429685A CN103170177B CN 103170177 B CN103170177 B CN 103170177B CN 201110429685 A CN201110429685 A CN 201110429685A CN 103170177 B CN103170177 B CN 103170177B
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Abstract
The invention relates to a condensate water processing system using permanent magnetic deironing filters, and a designing method thereof. The system comprises valves, a flow transmitter, a temperature transmitter, a pressure dial gauge, a pressure transmitter, a differential pressure transmitter, a condensed water pump, a permanent magnetic deironing filter I and a permanent magnetic deironing filter II, wherein the permanent magnetic deironing filter I (13), the permanent magnetic deironing filter II (14) and a bypass tube (17) are connected in parallel through pipelines, a water inlet end is connected with a hot well (16) through a water inlet main pipeline provided with the pressure transmitter (9) and the temperature transmitter (7), a water outlet end is connected with the condensed water pump (11) through a water outlet main pipeline provided with a manual butterfly valve (3-5), and the valves comprises a flange type pneumatic butterfly valve, an inverted valve, manual butterfly valves, an electric adjusting butterfly valve (4), and a pneumatic butterfly valve. The above designing method reduces the pressure of the system, reduces the pressure levels of the pipelines, flanges and the valves, and has a low equipment manufacturing requirement, so the product cost is reduced; and simultaneously the system saves the occupied space, is convenient to operate, and can realize automatic running.
Description
Technical field
The present invention relates to environmental protection water treatment facilities, specifically a kind of condensate polishing system and method for designing applying permanent magnetism deironing filter.
Background technology
Permanent magnetism deironing filter is the corollary equipment for condensate system, the strong magnetic force that it utilizes Permanent-magneto magnetic bar the to produce solid-state corrosion product removing the iron existed in electric power, chemical plant installations condensate water.The water and steam quality of unit is improved or alleviates the load of condensate water mixed bed.In general condensate polishing system, the installation site of permanent magnetism deironing filter is after condensate pump.After permanent magnetism deironing filter is arranged on condensate pump, system pressure is higher, and corresponding pipeline, flange, valve pressure grade improve, and requires also high to device fabrication, thus increases construction costs and operating cost.
Summary of the invention
The object of this invention is to provide a kind of condensate polishing system and the method for designing of applying permanent magnetism deironing filter, it can make system pressure lower, and reduces pipeline, flange, valve pressure grade, less demanding to device fabrication, thus reduces product cost; Meanwhile, it is saved and takes up an area space, and handled easily, can realize automatic operating.
Technical scheme of the present invention is: design a kind of condensate polishing system and the method for designing of applying permanent magnetism deironing filter, it comprises: valve, flow transmitter, temperature transmitter, pressure indicator, pressure transmitter, differential pressure transmitter, condensate pump, permanent magnetism deironing filter I, permanent magnetism deironing filter II, it is characterized in that: described permanent magnetism deironing filter I, after permanent magnetism deironing filter II is in parallel by pipeline with bypass pipe, water inlet end is connected with hot well with the water inlet main pipeline of temperature transmitter by being provided with pressure transmitter, water side is connected with condensate pump by the water outlet main pipe road being provided with Hand-operated butterfly valve, wherein, described valve comprises: flange type pneumatic butterfly valve, check-valves, Hand-operated butterfly valve, motorized adjustment butterfly valve, Pneumatic butterfly valve.
The water inlet end pipeline of described permanent magnetism deironing filter I is sequentially set with successively Hand-operated butterfly valve, flow transmitter, flange type pneumatic butterfly valve, pressure indicator, differential pressure transmitter, one end that water inlet end pipeline is connected with permanent magnetism deironing filter I is parallel with the blow down branch with Pneumatic butterfly valve, and the blow down branch other end is connected with wastewater disposal basin; The waste of permanent magnetism deironing filter I is connected with wastewater disposal basin by the blowdown supervisor with Pneumatic butterfly valve; The water side pipeline of permanent magnetism deironing filter I is sequentially set with successively pressure indicator, flange type pneumatic butterfly valve, Hand-operated butterfly valve.
The water inlet end pipeline of described permanent magnetism deironing filter II is sequentially set with successively Hand-operated butterfly valve, flow transmitter, flange type pneumatic butterfly valve, pressure indicator, differential pressure transmitter, one end that water inlet end pipeline is connected with permanent magnetism deironing filter II is parallel with the blow down branch with Pneumatic butterfly valve, and the blow down branch other end is connected with wastewater disposal basin; The waste of permanent magnetism deironing filter II is connected with wastewater disposal basin by the blowdown supervisor with Pneumatic butterfly valve; The water side pipeline of permanent magnetism deironing filter II is sequentially set with successively pressure indicator, flange type pneumatic butterfly valve, Hand-operated butterfly valve.
Described bypass pipe is provided with motorized adjustment butterfly valve and differential pressure transmitter, Hand-operated butterfly valve, Hand-operated butterfly valve, Hand-operated butterfly valve, one end of described Hand-operated butterfly valve, Hand-operated butterfly valve, differential pressure transmitter is in parallel, the other end of Hand-operated butterfly valve and one end series connection of motorized adjustment butterfly valve, the other end of motorized adjustment butterfly valve and the series connection of Hand-operated butterfly valve one end, the other end of Hand-operated butterfly valve, Hand-operated butterfly valve, differential pressure transmitter is in parallel.
One end of described differential pressure transmitter is connected with pressure indicator, and the other end pressure indicator of differential pressure transmitter connects; One end of described differential pressure transmitter is connected with pressure indicator, and the other end pressure indicator of differential pressure transmitter connects.
Advantage of the present invention is: 1. system pressure is lower, and corresponding pipeline, flange, valve pressure grade reduce, less demanding to device fabrication, thus reduces product cost.2. permanent magnetism deironing filter can remove water and comprises iron rot thing at interior solid matter, shields to condensate pump.It adds filter screen method before putting magnetic patch, condensate pump in cheating than conventional method hot well more saves occupation of land space, also handled easily, reduces labour intensity, can realize automatic operating.
Accompanying drawing explanation
Below in conjunction with embodiment accompanying drawing, the invention will be further described, but not as a limitation of the invention.
Fig. 1 is the structural representation of the embodiment of the present invention.
In figure: 1-1, flange type pneumatic butterfly valve; 1-2, flange type pneumatic butterfly valve; 1-3, flange type pneumatic butterfly valve; 2, check-valves; 3-1, Hand-operated butterfly valve; 3-2, Hand-operated butterfly valve; 3-3, Hand-operated butterfly valve; 3-4, Hand-operated butterfly valve; 3-5, Hand-operated butterfly valve; 3-6, Hand-operated butterfly valve; 3-7, Hand-operated butterfly valve; 3-8, Hand-operated butterfly valve; 3-9, Hand-operated butterfly valve; 4, motorized adjustment butterfly valve; 5-1, Pneumatic butterfly valve; 5-2, Pneumatic butterfly valve; 5-3, Pneumatic butterfly valve; 5-4, Pneumatic butterfly valve; 6-1, flow transmitter; 6-2, flow transmitter; 7, temperature transmitter; 8-1, pressure indicator; 8-2, pressure indicator; 8-3, pressure indicator; 8-4, pressure indicator; 8-5, pressure indicator; 9, pressure transmitter; 10-1, differential pressure transmitter; 10-2, differential pressure transmitter; 10-3, differential pressure transmitter; 11, condensate pump; 12, follow-up condensate-scavenging installation; 13, permanent magnetism deironing filter I; 14, permanent magnetism deironing filter II; 15-1 wastewater disposal basin; 15-2 wastewater disposal basin; 16, hot well; 17, bypass pipe.
Detailed description of the invention
The structure do not described in detail in an embodiment, its structure is identical with existing known structure.
Embodiment 1:
A kind of condensate polishing system and method for designing applying permanent magnetism deironing filter, it comprises: valve, flow transmitter, temperature transmitter, pressure indicator, pressure transmitter, differential pressure transmitter, condensate pump, permanent magnetism deironing filter I, permanent magnetism deironing filter II, described permanent magnetism deironing filter I 13, after permanent magnetism deironing filter II 14 is in parallel by pipeline with bypass pipe 17, water inlet end is connected with hot well 16 with the water inlet main pipeline of temperature transmitter 7 by being provided with pressure transmitter 9, water side is connected with condensate pump 11 by the water outlet main pipe road being provided with Hand-operated butterfly valve 3-5, wherein, described valve comprises: flange type pneumatic butterfly valve, check-valves, Hand-operated butterfly valve, motorized adjustment butterfly valve 4, Pneumatic butterfly valve.
Embodiment 2
A kind of condensate polishing system and method for designing applying permanent magnetism deironing filter, it comprises: valve, flow transmitter, temperature transmitter, pressure indicator, pressure transmitter, differential pressure transmitter, condensate pump, permanent magnetism deironing filter I, permanent magnetism deironing filter II, described permanent magnetism deironing filter I 13, after permanent magnetism deironing filter II 14 is in parallel by pipeline with bypass pipe 17, water inlet end is connected with hot well 16 with the water inlet main pipeline of temperature transmitter 7 by being provided with pressure transmitter 9, water side is connected with condensate pump 11 by the water outlet main pipe road being provided with Hand-operated butterfly valve 3-5, wherein, described valve comprises: flange type pneumatic butterfly valve, check-valves, Hand-operated butterfly valve, motorized adjustment butterfly valve 4, Pneumatic butterfly valve, the water inlet end pipeline of described permanent magnetism deironing filter I 13 is sequentially set with successively Hand-operated butterfly valve 3-1, flow transmitter 6-1, flange type pneumatic butterfly valve 1-2, pressure indicator 8-2, differential pressure transmitter 10-2, one end that water inlet end pipeline is connected with permanent magnetism deironing filter I 13 is parallel with the blow down branch with Pneumatic butterfly valve 5-2, and the blow down branch other end is connected with wastewater disposal basin 15-1, the waste of permanent magnetism deironing filter I 13 is connected with wastewater disposal basin 15-2 by the blowdown supervisor with Pneumatic butterfly valve 5-1, the water side pipeline of permanent magnetism deironing filter I 13 is sequentially set with successively pressure indicator 8-3, flange type pneumatic butterfly valve 1-1, Hand-operated butterfly valve 3-8, or the water inlet end pipeline of described permanent magnetism deironing filter II 14 is sequentially set with successively Hand-operated butterfly valve 3-2, flow transmitter 6-2, flange type pneumatic butterfly valve 1-3, pressure indicator 8-4, differential pressure transmitter 10-3, one end that water inlet end pipeline is connected with permanent magnetism deironing filter II 14 is parallel with the blow down branch with Pneumatic butterfly valve 5-4, and the blow down branch other end is connected with wastewater disposal basin 15-1, the waste of permanent magnetism deironing filter II 14 is connected with wastewater disposal basin 15-2 by the blowdown supervisor with Pneumatic butterfly valve 5-3, the water side pipeline of permanent magnetism deironing filter II 14 is sequentially set with successively pressure indicator 8-5, flange type pneumatic butterfly valve 1-4, Hand-operated butterfly valve 3-9, or described bypass pipe 17 is provided with motorized adjustment butterfly valve 4 and differential pressure transmitter 10-1, Hand-operated butterfly valve 3-3, Hand-operated butterfly valve 3-4, Hand-operated butterfly valve 3-6, one end of described Hand-operated butterfly valve 3-4, Hand-operated butterfly valve 3-3, differential pressure transmitter 10-1 is in parallel, the other end of Hand-operated butterfly valve 3-3 and one end series connection of motorized adjustment butterfly valve 4, the other end of motorized adjustment butterfly valve 4 and the series connection of Hand-operated butterfly valve 3-6 one end, the other end of Hand-operated butterfly valve 3-6, Hand-operated butterfly valve 3-4, differential pressure transmitter 10-1 is in parallel, or one end of described differential pressure transmitter 10-2 is connected with pressure indicator 8-2, the other end pressure indicator 8-3 of differential pressure transmitter 10-2 connects, one end of described differential pressure transmitter 10-3 is connected with pressure indicator 8-4, and the other end pressure indicator 8-5 of differential pressure transmitter 10-3 connects.Condensate polishing system of the present invention can be the combination of one or more of above-mentioned feature.
Embodiment 3
As shown in Figure 1, a kind of condensate polishing system and method for designing applying permanent magnetism deironing filter, it comprises: valve, flow transmitter, temperature transmitter, pressure indicator, pressure transmitter, differential pressure transmitter, condensate pump, permanent magnetism deironing filter I, permanent magnetism deironing filter II, described permanent magnetism deironing filter I 13, after permanent magnetism deironing filter II 14 is in parallel by pipeline with bypass pipe 17, water inlet end is connected with hot well 16 with the water inlet main pipeline of temperature transmitter 7 by being provided with pressure transmitter 9, water side is connected with one end of condensate pump 11 by the water outlet main pipe road being provided with Hand-operated butterfly valve 3-5, the other end of condensate pump 11 is connected with follow-up condensate-scavenging installation 12 by pressure indicator 8-1, check-valves 2, Hand-operated butterfly valve 3-7 successively, wherein, described valve comprises: flange type pneumatic butterfly valve, check-valves, Hand-operated butterfly valve, motorized adjustment butterfly valve 4, Pneumatic butterfly valve, the water inlet end pipeline of described permanent magnetism deironing filter I 13 is sequentially set with successively Hand-operated butterfly valve 3-1, flow transmitter 6-1, flange type pneumatic butterfly valve 1-2, pressure indicator 8-2, differential pressure transmitter 10-2, one end that water inlet end pipeline is connected with permanent magnetism deironing filter I 13 is parallel with the blow down branch with Pneumatic butterfly valve 5-2, and the blow down branch other end is connected with wastewater disposal basin 15-1, the waste of permanent magnetism deironing filter I 13 is connected with wastewater disposal basin 15-2 by the blowdown supervisor with Pneumatic butterfly valve 5-1, the water side pipeline of permanent magnetism deironing filter I 13 is sequentially set with successively pressure indicator 8-3, flange type pneumatic butterfly valve 1-1, Hand-operated butterfly valve 3-8, the water inlet end pipeline of described permanent magnetism deironing filter II 14 is sequentially set with successively Hand-operated butterfly valve 3-2, flow transmitter 6-2, flange type pneumatic butterfly valve 1-3, pressure indicator 8-4, differential pressure transmitter 10-3, one end that water inlet end pipeline is connected with permanent magnetism deironing filter II 14 is parallel with the blow down branch with Pneumatic butterfly valve 5-4, and the blow down branch other end is connected with wastewater disposal basin 15-1, the waste of permanent magnetism deironing filter II 14 is connected with wastewater disposal basin 15-2 by the blowdown supervisor with Pneumatic butterfly valve 5-3, the water side pipeline of permanent magnetism deironing filter II 14 is sequentially set with successively pressure indicator 8-5, flange type pneumatic butterfly valve 1-4, Hand-operated butterfly valve 3-9, described bypass pipe 17 is provided with motorized adjustment butterfly valve 4 and differential pressure transmitter 10-1, Hand-operated butterfly valve 3-3, Hand-operated butterfly valve 3-4, Hand-operated butterfly valve 3-6, one end of described Hand-operated butterfly valve 3-4, Hand-operated butterfly valve 3-3, differential pressure transmitter 10-1 is in parallel, the other end of Hand-operated butterfly valve 3-3 and one end series connection of motorized adjustment butterfly valve 4, the other end of motorized adjustment butterfly valve 4 and the series connection of Hand-operated butterfly valve 3-6 one end, the other end of Hand-operated butterfly valve 3-6, Hand-operated butterfly valve 3-4, differential pressure transmitter 10-1 is in parallel, one end of described differential pressure transmitter 10-2 is connected with pressure indicator 8-2, and the other end pressure indicator 8-3 of differential pressure transmitter 10-2 connects, one end of described differential pressure transmitter 10-3 is connected with pressure indicator 8-4, and the other end pressure indicator 8-5 of differential pressure transmitter 10-3 connects.
Every platform equipment is exerted oneself as processing 100% of the water yield, and equipment a preparation and a use, if the bypath system of 100%.During operation, condensate water is extracted out from hot well, through permanent magnetism deironing filter, owing to being subject to the strong magneticaction of bar magnet in permanent magnetism deironing filter, and ferromagnetism solid corrosion thing in removing condensate water.Follow-up condensate-scavenging installation is entered after condensate pump boosting.The inlet outlet pressure differential of permanent magnetism deironing filter is greater than 0.2MPa or reaches setting running time, and bypass valve (that is: the valve on bypass pipe) is opened automatically, and by the unit condensing capacity of 100%.Close permanent magnetism deironing filter terminal valve (that is: the valve on permanent magnetism deironing filter), extract bar magnet out, open blowoff valve, the ferromagnetism solid corrosion thing being adsorbed on magnetic rod sleeve outer wall is extracted out due to bar magnet and loses magnetic force sucking action, automatically falls into permanent magnetism deironing filter bottom and discharges with current through blowoff valve (that is: the valve on blow-off pipe).Cut out blowoff valve after blowdown completes, opens deironing filter terminal valve, and close bypath system, permanent magnetism deironing filter is from newly entering running status.A complete set of system can adopt automatic program control also can run manually.A whole set for the treatment of system is provided with pressure transmitter, flow transmitter, temperature transmitter, differential pressure transmitter and Pneumatic butterfly valve, motorized adjustment butterfly valve to realize the monitoring of a whole set for the treatment of system and automatically to run.
Claims (3)
1. apply the condensate polishing system of permanent magnetism deironing filter for one kind, it comprises: valve, flow transmitter, temperature transmitter, pressure indicator, pressure transmitter, differential pressure transmitter, condensate pump, permanent magnetism deironing filter I, permanent magnetism deironing filter II, it is characterized in that: described permanent magnetism deironing filter I (13), after permanent magnetism deironing filter II (14) is in parallel by pipeline with bypass pipe (17), water inlet end is connected with hot well (16) with the water inlet main pipeline of temperature transmitter (7) by being provided with pressure transmitter (9), water side is connected with condensate pump (11) by the water outlet main pipe road being provided with Hand-operated butterfly valve (3-5), wherein, described valve comprises: flange type pneumatic butterfly valve, check-valves, Hand-operated butterfly valve, motorized adjustment butterfly valve (4), Pneumatic butterfly valve, the water inlet end pipeline of described permanent magnetism deironing filter I (13) is sequentially set with successively Hand-operated butterfly valve (3-1), flow transmitter (6-1), flange type pneumatic butterfly valve (1-2), pressure indicator (8-2), differential pressure transmitter (10-2), one end that water inlet end pipeline is connected with permanent magnetism deironing filter I (13) is parallel with the blow down branch with Pneumatic butterfly valve (5-2), and the blow down branch other end is connected with wastewater disposal basin (15-1), the waste of permanent magnetism deironing filter I (13) is connected with wastewater disposal basin (15-2) by the blowdown supervisor with Pneumatic butterfly valve (5-1), the water side pipeline of permanent magnetism deironing filter I (13) is sequentially set with successively pressure indicator (8-3), flange type pneumatic butterfly valve (1-1), Hand-operated butterfly valve (3-8), the water inlet end pipeline of described permanent magnetism deironing filter II (14) is sequentially set with successively Hand-operated butterfly valve (3-2), flow transmitter (6-2), flange type pneumatic butterfly valve (1-3), pressure indicator (8-4), differential pressure transmitter (10-3), one end that water inlet end pipeline is connected with permanent magnetism deironing filter II (14) is parallel with the blow down branch with Pneumatic butterfly valve (5-4), and the blow down branch other end is connected with wastewater disposal basin (15-1), the waste of permanent magnetism deironing filter II (14) is connected with wastewater disposal basin (15-2) by the blowdown supervisor with Pneumatic butterfly valve (5-3), the water side pipeline of permanent magnetism deironing filter II (14) is sequentially set with successively pressure indicator (8-5), flange type pneumatic butterfly valve (1-4), Hand-operated butterfly valve (3-9).
2. a kind of condensate polishing system applying permanent magnetism deironing filter according to claim 1, it is characterized in that: described bypass pipe (17) is provided with motorized adjustment butterfly valve (4) and differential pressure transmitter (10-1), Hand-operated butterfly valve (3-3), Hand-operated butterfly valve (3-4), Hand-operated butterfly valve (3-6), described Hand-operated butterfly valve (3-4), Hand-operated butterfly valve (3-3), one end of differential pressure transmitter (10-1) is in parallel, the other end of Hand-operated butterfly valve (3-3) and one end series connection of motorized adjustment butterfly valve (4), the other end of motorized adjustment butterfly valve (4) and the series connection of Hand-operated butterfly valve (3-6) one end, Hand-operated butterfly valve (3-6), Hand-operated butterfly valve (3-4), the other end of differential pressure transmitter (10-1) is in parallel.
3. a kind of condensate polishing system applying permanent magnetism deironing filter according to claim 1, it is characterized in that: one end of described differential pressure transmitter (10-2) is connected with pressure indicator (8-2), the other end of differential pressure transmitter (10-2) is connected with pressure indicator (8-3); One end of described differential pressure transmitter (10-3) is connected with pressure indicator (8-4), and the other end of differential pressure transmitter (10-3) is connected with pressure indicator (8-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429685.8A CN103170177B (en) | 2011-12-20 | 2011-12-20 | Condensate water processing system using permanent magnetic deironing filters, and designing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429685.8A CN103170177B (en) | 2011-12-20 | 2011-12-20 | Condensate water processing system using permanent magnetic deironing filters, and designing method thereof |
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| Publication Number | Publication Date |
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| CN103170177A CN103170177A (en) | 2013-06-26 |
| CN103170177B true CN103170177B (en) | 2015-04-22 |
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| CN201110429685.8A Expired - Fee Related CN103170177B (en) | 2011-12-20 | 2011-12-20 | Condensate water processing system using permanent magnetic deironing filters, and designing method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108854213A (en) * | 2017-05-08 | 2018-11-23 | 中国石油化工集团公司 | Geothermal tail water recharge automatic backwash pre-filtrating equipment and system |
| CN112479472A (en) * | 2020-11-29 | 2021-03-12 | 华能南通燃机发电有限公司 | Condensate water fine treatment system of large H-level peak regulation gas-steam combined cycle direct-current waste heat boiler |
| CN113023822A (en) * | 2021-04-19 | 2021-06-25 | 中国石油天然气股份有限公司 | Activated carbon filtering device, control method and filtering system |
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| US3841486A (en) * | 1968-12-24 | 1974-10-15 | Siemens Ag | Device for purifying the feed water of a steam power installation |
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| JPS5916517A (en) * | 1982-07-16 | 1984-01-27 | Japan Organo Co Ltd | Treatment by of electro magnetic filter |
| JPH10337420A (en) * | 1997-06-06 | 1998-12-22 | Mitsubishi Heavy Ind Ltd | Electromagnetic filter for treating raw water containing magnetic particle |
| CN2789235Y (en) * | 2005-04-18 | 2006-06-21 | 张景聪 | Deironing system for coagulated water |
| CN202569780U (en) * | 2011-12-20 | 2012-12-05 | 西安龙源环保科技工程有限责任公司 | Condensation water treatment system applying permanent magnet iron removal filter |
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2011
- 2011-12-20 CN CN201110429685.8A patent/CN103170177B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841486A (en) * | 1968-12-24 | 1974-10-15 | Siemens Ag | Device for purifying the feed water of a steam power installation |
| US3972772A (en) * | 1971-07-20 | 1976-08-03 | Kraftwerk Union Aktiengesellschaft | Steam power plant for nuclear reactor stations having pressurized water reactors |
| JPS5916517A (en) * | 1982-07-16 | 1984-01-27 | Japan Organo Co Ltd | Treatment by of electro magnetic filter |
| JPH10337420A (en) * | 1997-06-06 | 1998-12-22 | Mitsubishi Heavy Ind Ltd | Electromagnetic filter for treating raw water containing magnetic particle |
| CN2789235Y (en) * | 2005-04-18 | 2006-06-21 | 张景聪 | Deironing system for coagulated water |
| CN202569780U (en) * | 2011-12-20 | 2012-12-05 | 西安龙源环保科技工程有限责任公司 | Condensation water treatment system applying permanent magnet iron removal filter |
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Effective date of registration: 20170504 Address after: 100124 International Building,, No. 3 East Canal Road, Beijing, Chaoyang District 912 Patentee after: BEIJING ZHONGCHUANG LONGYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY Co.,Ltd. Address before: 309 room nine, new Times Building, No. three, 710075 hi tech Road, Shaanxi, Xi'an Patentee before: Xi'an Longyuan Environmental Protection Technology Engineering Co.,Ltd. |
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