CN203518072U - Control room gas anti-corrosion heat recovery all-in-one machine - Google Patents
Control room gas anti-corrosion heat recovery all-in-one machine Download PDFInfo
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- CN203518072U CN203518072U CN201320668555.4U CN201320668555U CN203518072U CN 203518072 U CN203518072 U CN 203518072U CN 201320668555 U CN201320668555 U CN 201320668555U CN 203518072 U CN203518072 U CN 203518072U
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- 238000011084 recovery Methods 0.000 title claims abstract description 24
- 238000005260 corrosion Methods 0.000 title claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 21
- 238000001914 filtration Methods 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 12
- 239000000919 ceramic Substances 0.000 claims description 11
- 230000007797 corrosion Effects 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 8
- 230000000977 initiatory effect Effects 0.000 claims description 8
- 239000003344 environmental pollutant Substances 0.000 claims description 3
- 231100000719 pollutant Toxicity 0.000 claims description 3
- 239000000126 substance Substances 0.000 abstract description 13
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 14
- PNEYBMLMFCGWSK-UHFFFAOYSA-N Alumina Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 12
- 238000001179 sorption measurement Methods 0.000 description 9
- 230000002000 scavenging effect Effects 0.000 description 7
- 238000004134 energy conservation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000005367 electrostatic precipitation Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000011941 photocatalyst Substances 0.000 description 4
- 231100000614 poison Toxicity 0.000 description 4
- 230000007096 poisonous effect Effects 0.000 description 4
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000001473 noxious effect Effects 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012286 potassium permanganate Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Abstract
A control room gas anti-corrosion heat recovery all-in-one machine comprises an air supply box shell and an air exhaust box shell which are parallelly connected. The air supply box shell is sequentially provided with a fresh air inlet, a primary efficiency filter section, a fresh air chemical filter section, a heat pipe heat recovery section, a cooling and heating section, an air supply fan and a fresh air outlet. The air exhaust box shell is sequentially provided with an exhaust outlet, an exhaust fan, a heat pipe heat recovery section and an exhaust inlet inside. The exhaust outlet and the fresh air inlet are located on the same side. The air exhaust inlet and the fresh air outlet are located on the other side. The control room gas anti-corrosion heat recovery all-in-one machine has the advantages that the air cleanness and temperature problems during control room air exhaust and supply are solved at the same time, and the machine is low in operation energy consumption, simple to control and small in space occupation.
Description
Technical field
The utility model relates to house gas exchange field of purification, concrete, relates to a kind of equipment integrating that the gas in control room is carried out to anticorrosion and recuperation of heat.
Background technology
Petroleum chemical enterprise often produces a large amount of pollution gas as formaldehyde, benzene, dimethylbenzene, TVOC and NH3 etc. during plant produced, and factory near DCS control room in have a large amount of precision instruments, if do not processed sending into indoor air, by suffering serious corrosion impact, it normally uses these precision instruments.So near DCS control room factory, except using a set of new blower fan group to sending into the temperature of indoor air regulates, also must be equipped with a set of dark bed formula air cleaning unit, to avoid external air on controlling corrosion and the impact of indoor equipment.DCS control room needs the air draft of at least 6 times/hours, its exhaust air rate is much larger than common civil buildings, if do not have heat recovery equipment of extract air can cause a large amount of wastes of the energy, in order to respond energy-conservation call, also must separately add a set of heat reclamation device and reclaim the heat in indoor exhaust wind.Simultaneously there is comfortableness requirement in common DCS control room to indoor environment, makes within the temperature in room is controlled at certain scope, so must must be equipped with a set of refrigerating and heating combined equipment in order also to address this problem.This is just equivalent to be equipped with quadruplet equipment, causes installation complicated, and maintenance difficulty, takies a large amount of expensive real estate, has also increased initial cost and the operation energy consumption of air-conditioning system, causes noise very large because quadruplet equipment moves simultaneously simultaneously, and control system is complicated.
Even if for air cleaning system, clean-up effect is poor, air flow resistance large, it is large to take up room, wind speed is little and scavenging material corrodes the problems such as too fast as active carbon, potassium permanganate, aluminium oxide, electrostatic precipitation and photocatalyst are all faced with for common dark bed purifier scavenging material used.
Simultaneously, in air circulation, for energy-conservation consideration, the DCS control room air draft of petroleum chemical enterprise generally has the minimum air changes requirement about 6 times/hour, therefore have a large amount of room airs to be discharged to outdoor, if the energy in these air drafts is not reclaimed and will be caused wasting of mass energy, common recuperation of heat mode as rotary-type, board-like be all faced with corrode too fast, new air draft cross pollution, especially new air draft cross pollution is definitely unallowed in DCS control room.
Therefore, how can provide the air that a kind of integration apparatus both provided totally, temperature is suitable, avoid again energy waste, reduce cross pollution and become the technical problem of needing solution badly.
Utility model content
The purpose of this utility model is to propose a kind of control room preventing gas corrosion recuperation of heat all-in-one, solve the variety of issue of control room air draft, and operation energy consumption is lower simultaneously, controls simply, takes up room less.
For reaching this object, the utility model by the following technical solutions:
A kind of control room preventing gas corrosion recuperation of heat all-in-one, it comprises wind pushing box housing and the air exhaust box housing connecting side by side each other, wherein at wind pushing box housing, there is successively new wind entrance, initial effect filtering section, new weathering fillter section, heat pipe heat-recovery section, refrigerated medium hot arc, breeze fan and new wind outlet, in air exhaust box housing, there is successively wind exhausting outlet, exhaust fan, heat pipe heat-recovery section and air draft entrance, described wind exhausting outlet and described new wind entrance are positioned at a side, described air draft entrance and described new wind outlet are positioned at an other side, it is characterized in that:
Described initial effect filtering section is arranged on described new wind entrance side, is used for tentatively filtering oarse-grained pollutant in new wind;
Described new weathering fillter section further filters new wind;
Described heat pipe heat-recovery section one end is arranged in described wind pushing box housing, and one end is arranged in described air exhaust box housing;
Described refrigerated medium hot arc is arranged between described heat pipe heat-recovery section and described breeze fan, for the temperature of new wind, further regulates;
Described breeze fan is arranged on described new wind outlet side, sends into through filtering and thermoregulator air;
Described exhaust fan is arranged on described wind exhausting outlet side, discharges the air through superheater tube heat-recovery section;
Described recuperation of heat all-in-one also comprises that control system controls each equipment of described recuperation of heat all-in-one.
Preferably, described new weathering fillter section is active carbon.
Preferably, described new weathering fillter section further filters new wind, is ceramic purifying material.
Preferably, described refrigerated medium hot arc is connected with the outdoor Cooling and Heat Source that is arranged on wind pushing box hull outside, to improve thermoregulator ability, the outlet of described refrigerated medium hot arc is connected with the entrance of outdoor Cooling and Heat Source, and the entrance of refrigerated medium hot arc is connected with the outlet of outdoor Cooling and Heat Source.
Preferably, described wind pushing box housing 8 and air exhaust box housing are horizontally disposed with side by side.
This recuperation of heat all-in-one collection quadruplet device---new blower fan group, the dark bed of new wind formula chemical filter unit, heat reclamation device, refrigerating and heating combined equipment are integrated in one, make unit installation simply, conveniently overhauled, reduced air-conditioning system initial cost and operation energy consumption, reduce noise, control system becomes simply, take up room and also greatly reduce simultaneously.
The dark bed of new wind formula chemical filtering section is preferably as ceramic purifying material, and it is fast that this composite has the rate of adsorption, and adsorption capacity is high, does not send out the characteristics such as dirt, lower resistance, no longer needs to configure/regularly replace rearmounted medium/high effect filter; Significantly reduce medium energy consumption, meet ASHRAE62.1 completely; Utilizing Rate approaches 100%, can efficiently remove all kinds of poisonous and harmful chemical gas of petrochemical factory's discharge, compare general scavenging material as less in active carbon, aluminium oxide, electrostatic precipitation, photocatalyst etc. have, more simply, more energy-conservation, more flexibly, more cheap feature, and sectional area is 1/5 of general scavenging material, cross section wind scooter 2.5m/s.
Heat pipe when work movement-less part, does not have additional energy source consumption, and energy-saving efficiency is high, and heat pipe horizontal positioned can carry out two-way heat transfer, and without slant setting, without conversion equipment in season, new wind air draft not blending mutually, without cross pollution, has guaranteed indoor air quality.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of control room of the present utility model preventing gas corrosion recuperation of heat all-in-one.
The technical characterictic that Reference numeral in figure refers to is respectively:
1, initial effect filtering section; 2, new weathering fillter section; 3, heat pipe heat-recovery section; 4, refrigerated medium hot arc; 5, breeze fan; 6, exhaust fan; 7, outdoor Cooling and Heat Source; 8, wind pushing box housing; 9, air exhaust box housing; 10, control system.
The specific embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.Be understandable that, specific embodiment described herein is only for explaining the utility model, but not to restriction of the present utility model.It also should be noted that, for convenience of description, in accompanying drawing, only show the part relevant to the utility model but not entire infrastructure.
Referring to accompanying drawing 1, disclose according to control room of the present utility model preventing gas corrosion recuperation of heat all-in-one, it comprises wind pushing box housing 8 and the air exhaust box housing 9 connecting side by side each other, wherein at wind pushing box housing 8, there is successively new wind entrance, initial effect filtering section 1, new weathering fillter section 2, heat pipe heat-recovery section 3, refrigerated medium hot arc 4, breeze fan 5 and new wind outlet, in air exhaust box housing 9, there is successively wind exhausting outlet, exhaust fan 6, heat pipe heat-recovery section 3 and air draft entrance, wind exhausting outlet and new wind entrance are positioned at a side, air draft entrance and new wind outlet are positioned at an other side, it is characterized in that:
Described initial effect filtering section 1 is arranged on new wind entrance side, is used for tentatively filtering oarse-grained pollutant in new wind.
Described new weathering fillter section 2 further filters new wind, and it can be ceramic purifying material, or active carbon, is preferably ceramic purifying material.With respect to active carbon, it is fast that ceramic purifying material has the rate of adsorption, and adsorption capacity is high, do not send out the characteristics such as dirt, lower resistance, no longer needs to configure/regularly replace rearmounted medium/high effect filter; Significantly reduce medium energy consumption, be described in detail as follows:
Reaction speed is fast: airborne chemical molecular and adsorbing medium need the reaction time.If adsorption rate is slow, also do not react completely, poisonous substance just enters indoor through system.But fast 10 times than the granule medium rate of adsorption of ceramic purifying materials, that is to say, the security that adopts ceramic purifying material is 10 times of general filtering material, is the fastest reaction rate in the world at present, in 0.03 (1ppm) second/0.005 (200ppb), completes absorption.
Adsorption capacity is large: the activated carbon adsorptive capacity of common various matrixes is between 1～5%;
The activated carbon adsorptive capacity of various professional modifications is between 3～10%;
The ability of the main noxious material of ceramic purifying material reaches 20～40%;
Cleaning, changes safe and simple: ceramic purifying material is not sent out dirt, changes and only needs a people just can complete a few minutes, and the chemical filtering module of having adsorbed noxious material is appointed right safety, and safety operation can desorption toxic gas and dust;
More low energy consumption: under equal conditions, energy consumption is particle system 1/3～1/2.
Entirely meet ASHRAE62.1; Utilizing Rate approaches 100%, can efficiently remove all kinds of poisonous and harmful chemical gas of petrochemical factory discharge, compare general scavenging material as less in active carbon, aluminium oxide, electrostatic precipitation, photocatalyst etc. have, more simply, more energy-conservation, more flexibly, more cheap feature.
Described heat pipe heat-recovery section 3 one end are arranged in wind pushing box housing 8, one end is arranged in air exhaust box housing 9, movement-less part during heat pipe work, does not have additional energy source consumption, and energy-saving efficiency is high, and heat pipe horizontal positioned can be carried out two-way heat transfer, without slant setting, without conversion equipment in season, new wind air draft not blending mutually, without cross pollution, guaranteed indoor air quality.
Therefore, described wind pushing box housing 8 and air exhaust box housing 9 are preferably side by side and are horizontally disposed with.
When working summer, new wind obtains cold from air draft by heat pipe reduce new air temperature; While working in the winter time, new wind obtains heat from air draft by heat pipe, and new air temperature is raise, and greatly reduces the load of refrigerated medium hot arc 4, thereby has reached energy-conservation object.
Described refrigerated medium hot arc 4 is arranged between described heat pipe heat-recovery section 3 and described breeze fan 5, for the temperature of new wind, further regulates.It should be known that the cold bringing-up section 4 of table can heat, and also can freeze, to the new wind of sending into is carried out to needed temperature control.
Preferably, refrigerated medium hot arc 4 is connected with the outdoor Cooling and Heat Source 7 that is arranged on wind pushing box housing 8 outsides, to improve thermoregulator ability, concrete, 4 outlets of refrigerated medium hot arc are connected with outdoor Cooling and Heat Source 7 entrances, refrigerated medium hot arc 4 entrances are connected with outdoor Cooling and Heat Source 7 outlets, thereby form cooling and warming circulation.
Breeze fan 7 is arranged on new wind outlet side, sends into through filtering and thermoregulator air.
In air exhaust box housing 9, exhaust fan 6 is arranged on wind exhausting outlet side, discharges the air through superheater tube heat-recovery section 3.
Described recuperation of heat all-in-one also comprises that each equipment of 10 pairs of described recuperation of heat all-in-ones of control system controls.The installation site that it should be known that described control system 10 does not limit, as long as can realize, controls function.
Below, illustrate the operation principle of control room preventing gas corrosion recuperation of heat all-in-one:
Take summer condition as example, press after unit starting button, control system 10 is connected the power supply of the outdoor Cooling and Heat Source 7 of refrigeration system, outdoor Cooling and Heat Source 7 and refrigerated medium hot arc 4 are started working, until refrigerated medium hot arc 4 surface temperatures during lower than design temperature, control system 10 is connected breeze fan 5 and exhaust fan 6 power supplys, and system starts normal work.Outdoor new wind enters wind pushing box housing 8 under breeze fan 5 effects, first through initial effect filtering section 1, after preliminary filtration, through new weathering fillter section 2, purify as clean gas again, then through the relatively low heat pipe heat-recovery section 3 of excess temperature, tentatively cool, finally by the further cooling of refrigerated medium hot arc 4, reaching indoor wind pushing temperature is admitted to indoor, and the gas of indoor dirty low temperature enters air exhaust box housing 9 under the drive of exhaust fan 6, through superheater tube heat-recovery section 3, thereby cold is passed to the object that air-supply side reaches the saving energy that recovers energy from air draft side, finally be discharged into atmosphere.
It should be known that, when use in winter, the operation principle of this recuperation of heat all-in-one is similar.
The utlity model has following advantage:
1, quadruplet device---new blower fan group, the dark bed of new wind formula chemical filter unit, heat reclamation device, refrigerating and heating combined equipment are integrated in one, make unit installation simply, conveniently overhauled, reduced air-conditioning system initial cost and operation energy consumption, reduce noise, control system becomes simply, take up room and also greatly reduce simultaneously.
2, the dark bed of new wind formula chemical filtering section 2 is ceramic purifying material, and it is fast that this composite has the rate of adsorption, and adsorption capacity is high, does not send out the characteristics such as dirt, lower resistance, no longer needs to configure/regularly replace rearmounted medium/high effect filter; Significantly reduce medium energy consumption, meet ASHRAE62.1 completely; Utilizing Rate approaches 100%, can efficiently remove all kinds of poisonous and harmful chemical gas of petrochemical factory's discharge, compare general scavenging material as less in active carbon, aluminium oxide, electrostatic precipitation, photocatalyst etc. have, more simply, more energy-conservation, more flexibly, more cheap feature, and sectional area is 1/5 of general scavenging material, cross section wind scooter 2.5m/s.
Movement-less part when 3, heat pipe is worked, does not have additional energy source consumption, and energy-saving efficiency is high, and heat pipe horizontal positioned can be carried out two-way heat transfer, without slant setting, without conversion equipment in season, new wind air draft not blending mutually, without cross pollution, has guaranteed indoor air quality.
Above content is in conjunction with concrete preferred embodiment further detailed description of the utility model; can not assert that the specific embodiment of the present utility model only limits to this; for the utility model person of an ordinary skill in the technical field; without departing from the concept of the premise utility; can also make some simple deduction or replace, all should be considered as belonging to the utility model and determine protection domain by submitted to claims.
Claims (5)
1. a control room preventing gas corrodes recuperation of heat all-in-one, it comprises wind pushing box housing and the air exhaust box housing connecting side by side each other, wherein at wind pushing box housing, there is successively new wind entrance, initial effect filtering section, new weathering fillter section, heat pipe heat-recovery section, refrigerated medium hot arc, breeze fan and new wind outlet, in air exhaust box housing, there is successively wind exhausting outlet, exhaust fan, heat pipe heat-recovery section and air draft entrance, described wind exhausting outlet and described new wind entrance are positioned at a side, described air draft entrance and described new wind outlet are positioned at an other side, it is characterized in that:
Described initial effect filtering section is arranged on described new wind entrance side, is used for tentatively filtering oarse-grained pollutant in new wind;
Described new weathering fillter section further filters new wind;
Described heat pipe heat-recovery section one end is arranged in described wind pushing box housing, and one end is arranged in described air exhaust box housing;
Described refrigerated medium hot arc is arranged between described heat pipe heat-recovery section and described breeze fan, for the temperature of new wind, further regulates;
Described breeze fan is arranged on described new wind outlet side, sends into through filtering and thermoregulator air;
Described exhaust fan is arranged on described wind exhausting outlet side, discharges the air through superheater tube heat-recovery section;
Described recuperation of heat all-in-one also comprises that control system controls each equipment of described recuperation of heat all-in-one.
2. control room according to claim 1 preventing gas corrodes recuperation of heat all-in-one, it is characterized in that:
Described new weathering fillter section is active carbon.
3. control room according to claim 1 preventing gas corrodes recuperation of heat all-in-one, it is characterized in that:
Described new weathering fillter section is ceramic purifying material.
4. according to the control room preventing gas corrosion recuperation of heat all-in-one described in any one in claim 1-3, it is characterized in that:
Described refrigerated medium hot arc is connected with the outdoor Cooling and Heat Source that is arranged on wind pushing box hull outside, and to improve thermoregulator ability, the outlet of described refrigerated medium hot arc is connected with the entrance of outdoor Cooling and Heat Source, and the entrance of refrigerated medium hot arc is connected with the outlet of outdoor Cooling and Heat Source.
5. control room according to claim 4 preventing gas corrodes recuperation of heat all-in-one, it is characterized in that:
Described wind pushing box housing and air exhaust box housing are horizontally disposed with side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320668555.4U CN203518072U (en) | 2013-10-28 | 2013-10-28 | Control room gas anti-corrosion heat recovery all-in-one machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320668555.4U CN203518072U (en) | 2013-10-28 | 2013-10-28 | Control room gas anti-corrosion heat recovery all-in-one machine |
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| Publication Number | Publication Date |
|---|---|
| CN203518072U true CN203518072U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320668555.4U Expired - Lifetime CN203518072U (en) | 2013-10-28 | 2013-10-28 | Control room gas anti-corrosion heat recovery all-in-one machine |
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| Country | Link |
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| CN (1) | CN203518072U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091184A (en) * | 2016-08-11 | 2016-11-09 | 冯晓宏 | A kind of energy-efficient full quality air conditioning system |
| CN106440168A (en) * | 2016-10-09 | 2017-02-22 | 北京汉昌绿源环保工程有限公司 | Air supply and exhaust system with heat recovery and waste gas purification |
| CN107137985A (en) * | 2017-05-31 | 2017-09-08 | 四川建源节能科技有限公司 | A kind of filter |
-
2013
- 2013-10-28 CN CN201320668555.4U patent/CN203518072U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091184A (en) * | 2016-08-11 | 2016-11-09 | 冯晓宏 | A kind of energy-efficient full quality air conditioning system |
| CN106440168A (en) * | 2016-10-09 | 2017-02-22 | 北京汉昌绿源环保工程有限公司 | Air supply and exhaust system with heat recovery and waste gas purification |
| CN107137985A (en) * | 2017-05-31 | 2017-09-08 | 四川建源节能科技有限公司 | A kind of filter |
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Legal Events
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: BEIJING XIAOYI ENERGY-SAVING TECHNOLOGY CO., LTD. Free format text: FORMER NAME: BEIJING KERUIXIN ELECTROMECHANICAL EQUIPMENT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 101113 Beijing city Tongzhou District Guangju Street No. 6 2 F block Patentee after: BEIJING XIAOYI ENERGY SAVING TECHNOLOGY Co.,Ltd. Address before: 101113 Beijing city Tongzhou District Zhangjiawan Town colliers Village Patentee before: BEIJING KERUIXIN ELECTROMECHANICAL EQUIPMENT CO.,LTD. |
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| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
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| CX01 | Expiry of patent term |