CN110173881A - A kind of central air-conditioning draining protection of pipe structure - Google Patents
A kind of central air-conditioning draining protection of pipe structure Download PDFInfo
- Publication number
- CN110173881A CN110173881A CN201910408585.3A CN201910408585A CN110173881A CN 110173881 A CN110173881 A CN 110173881A CN 201910408585 A CN201910408585 A CN 201910408585A CN 110173881 A CN110173881 A CN 110173881A
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- China
- Prior art keywords
- central air
- conditioning
- tube
- protection
- protective shell
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/22—Means for preventing condensation or evacuating condensate
- F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate
Abstract
The invention discloses central air-conditioning a kind of in central air-conditioning accessory technical field to drain protection of pipe structure; including the first pipe fitting interconnecting piece, the second pipe fitting interconnecting piece and tee tube etc.; staff only need to press pressing plate by finger and plug division is fixed in plug socket; protective shell and lower protective shell is set to be fixedly attached to the lateral wall of central air-conditioning drainpipe; cold insulation moisture-proof role is played to central water drainage pipe of air conditioner; the case where can effectivelying prevent the water in central air-conditioning drainpipe its surface is easy condensation in process of refrigerastion, thus the case where avoiding flooding bubble furred ceiling generation；By opening electromagnetic impulse valve, enters gas in tee tube with elevated pressures, the blocking foreign matter being bonded in central air-conditioning drainpipe is blown down, when central air-conditioning works again, foreign matter is just gone out with drainpipe by water, easy to operate, saving manpower and time.
Description
Technical field
The present invention relates to central air-conditioning accessory technical field, specific field is that a kind of central air-conditioning drains protection of pipe structure.
Background technique
Central air-conditioning is made of one or more cold and heat source systems and multiple air handling systems, and central air-conditioning is mainly by making
The composition such as cold, cooling water recirculation system, fan coil and cooling tower, its working principle is that refrigeration machine will be freezed by compressor
After agent is compressed into liquid, it is sent into evaporator and carries out heat exchange with chilled water, chilled water is freezed, chilled water is sent to by refrigerating water pump
It in the cooling coil of each air blower, is blowed by blower and achievees the purpose that cooling, the refrigerant after evaporating is released within the condenser
Releasing heat is in gaseous state, and cooling pump send cooling water to cooling tower, carries out spraying cooling to it by water tower blower, at the same with it is big
Heat exchange is carried out between gas, and heat is distributed into atmosphere, the water in central air-conditioning drainpipe is cold water in process of refrigerastion,
Surface is easy condensation, can flood bubble furred ceiling when more serious, and central air-conditioning using the time it is longer when, easily there is blocking and shows in drainpipe
As, need special messenger to carry out tearing pipe dredging open after blocking, it is cumbersome, a kind of central air-conditioning draining protection of pipe structure is proposed thus.
Summary of the invention
The purpose of the present invention is to provide a kind of central air-conditioning to drain protection of pipe structure, to solve to mention in above-mentioned background technique
Out the problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of central air-conditioning drains protection of pipe structure, including
First pipe fitting interconnecting piece and drainpipe protection portion, the first pipe fitting interconnecting piece include screwing portion, the lateral wall for screwing portion
Equipped with anti-slip part, the anti-slip part is made of anti-skid chequer, and the left end for screwing portion is integrally formed with first connecting portion, the rotation
The right end in the portion of twisting is equipped with screw thread, the first connecting portion integrally formed with second connecting portion, the lateral wall of the second connecting portion
It is connected with the second pipe fitting interconnecting piece, the second pipe fitting interconnecting piece includes intermediate tube, the left and right end difference one of the intermediate tube
Left connection end and right connection end are formed, runs through on the intermediate tube and is equipped with tee tube, the riser portions of the tee tube
Through the intermediate tube, cross tube sections of the tee tube or so end respectively with the left connection end and the right connection end
Be connected, the riser portions upper end of the tee tube is connected with L shape connecting tube, the cross tube sections right end of the L shape connecting tube with
The outlet side of electromagnetic impulse valve is connected, and the inlet end of the electromagnetic impulse valve is connected with gas bag by connecting tube, the electricity
Magnetic field impulse valve and the gas bag are mounted on the sidewall upper for screwing portion；
The drainpipe protection portion includes upper protective shell and lower protective shell, and the left and right sidewall of the upper protective shell is fixed to be connected
It is connected to plug division, the left and right sidewall of the lower protective shell is fixedly connected to the plug socket being used cooperatively with the plug division, institute
Stating plug division includes grafting frame, and the upper end of the grafting frame is fixedly connected with connecting plate, and the inner sidewall of the grafting frame is fixed to be connected
It is connected to one end of tongue, the other end of the tongue, which is fixed as one, forms pressing plate, and the side wall of the tongue is equipped with protrusion, institute
It states and is fixedly connected with connection thin slice between the lower part of tongue and the grafting frame, the inner sidewall of the grafting frame and be located at described press
Limit plate is symmetrically arranged on the downside of pressing plate, the plug socket includes grafting shell, and the side wall of the grafting shell is equipped with and institute
State the limit hole that male cooperation uses.
Preferably, the shell for screwing portion is rectangular, and the inner cavity for screwing portion is circle.
Preferably, the right connection end includes outer pipe shell, and the inside of the outer pipe shell is equipped with inner connection tube.
Preferably, the riser portions caliber of the tee tube is greater than cross tube sections caliber.
Preferably, the inner sidewall of the upper protective shell and the lower protective shell is painted with cold insulation damp-proof layer.
Preferably, raised line is uniformly provided on the side wall of the pressing plate.
Compared with prior art, the beneficial effects of the present invention are: a kind of central air-conditioning drains protection of pipe structure, when to draining
When protection of pipe portion is installed, staff only need to by finger press pressing plate, so that tongue is tilted inwardly, drive protrusion to
Inside inclination, while plug division being inserted into plug socket, it protrudes out into limit hole, stops pressing pressing plate, protrusion is stayed
It is placed in limit hole, limit hole fixes raised position restriction, tongue position, and thus plug division is fixed in plug socket, most
Protective shell and lower protective shell can be fixedly connected on the lateral wall of central air-conditioning drainpipe, centering by plug division and plug socket on end
Centre water drainage pipe of air conditioner plays cold insulation moisture-proof role, can effectively prevent its surface in process of refrigerastion of the water in central air-conditioning drainpipe
The case where being easy condensation, to avoid the case where flooding bubble furred ceiling generation；
First pipe fitting interconnecting piece and the second pipe fitting interconnecting piece are connected between central air-conditioning drainpipe at a certain position, when
When central air-conditioning drainpipe causes blockages, electromagnetic impulse valve is opened, gas bag provides gas source, electromagnetic pulse for electromagnetic impulse valve
Valve will be such that gas enters in tee tube with elevated pressures, and high pressure gas enters cross tube sections, edge along the riser portions of tee tube
The both ends of cross tube sections have respectively entered in left connection end and inner connection tube, and then high pressure gas can be by central air-conditioning drainpipe
The blocking foreign matter of interior bonding is blown down, and when central air-conditioning works again, foreign matter is just gone out with drainpipe by water, easy to operate, section
Human-saving and time.
In conclusion the present invention can effectively prevent its surface in process of refrigerastion of the water in central air-conditioning drainpipe to be easy to coagulate
The case where dew, it is easy to operate to there is plugging handling to central water drainage pipe of air conditioner, saves thus the case where avoiding flooding bubble furred ceiling generation
Manpower and time.
Detailed description of the invention
Fig. 1 is main structure main view partial cutaway view of the invention；
Fig. 2 screws portion's left view sectional view for of the invention；
Fig. 3 is first connecting portion main view partial cutaway view of the invention；
Fig. 4 is drainpipe protection portion main view of the invention；
Fig. 5 is upper protective shell and lower protective shell structural schematic diagram of the invention；
Fig. 6 is plug division left view of the invention；
Fig. 7 is plug socket left view of the invention.
In figure: the first pipe fitting of 1- interconnecting piece, 101- screw portion, 102- anti-slip part, 103- first connecting portion, the company of 104- second
Socket part, the second pipe fitting of 2- interconnecting piece, 201- intermediate tube, the left connection end 202-, the right connection end 203-, 2031- outer pipe shell,
2032- inner connection tube, 3- tee tube, 4-L shape connecting tube, 5- electromagnetic impulse valve, 6- gas bag, 7- drainpipe protection portion, on 701-
Protective shell under protective shell, 702-, the plug division 703-, 7031- grafting frame, 7032- connecting plate, 7033- tongue, 7034- pressing plate,
7035- protrusion, 7036- connection thin slice, 7037- limit plate, 704- plug socket, 7041- grafting shell, 7042- limit hole.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-7 is please referred to, the present invention provides a kind of technical solution: a kind of central air-conditioning draining protection of pipe structure, including the
One pipe fitting interconnecting piece 1 and drainpipe protection portion 7, the first pipe fitting interconnecting piece is for connecting other components and central air-conditioning row
Water pipe, the first pipe fitting interconnecting piece include the portion 101 that screws, and the lateral wall for screwing portion is equipped with anti-slip part 102, described anti-skidding
Portion is made of anti-skid chequer, the left end for screwing portion integrally formed with first connecting portion 103, the right end one for screwing portion at
Type has second connecting portion 104, and the lateral wall of the second connecting portion is equipped with screw thread, and the first connecting portion is connected with the second pipe fitting
Interconnecting piece 2 makes the first pipe fitting interconnecting piece be connected with the two pipe fittings interconnecting piece, passes through institute by the first connecting portion
Stating second connecting portion makes the first pipe fitting interconnecting piece be connected with central air-conditioning drainpipe, convenient by screwing the portion of screwing
The second connecting portion is threadedly coupled with central air-conditioning drainpipe, and the second pipe fitting interconnecting piece includes intermediate tube 201, it is described in
Between pipe left and right end respectively integrally formed with left connection end 202 and right connection end 203, the left connection end is used for in
Centre water drainage pipe of air conditioner is connected, and the right connection end and the first connecting portion are clamped, through equipped with three on the intermediate tube
Siphunculus 3, the riser portions of the tee tube run through the intermediate tube, cross tube sections of the tee tube or so end respectively with it is described
Left connection end is connected with the right connection end, and the riser portions upper end of the tee tube is connected with L shape connecting tube 4, institute
The cross tube sections right end for stating L shape connecting tube is connected with the outlet side of electromagnetic impulse valve 5, the inlet end of the electromagnetic impulse valve with
Gas bag 6 is connected by connecting tube, and the electromagnetic impulse valve and the gas bag are mounted on the sidewall upper for screwing portion, is beaten
Open the electromagnetic impulse valve, the gas bag provides gas source for the electromagnetic impulse valve, the electromagnetic impulse valve will make gas with compared with
High pressure enters in the tee tube, and high pressure gas enters the cross tube sections along the riser portions of the tee tube, along institute
The both ends for stating cross tube sections have respectively entered in the left connection end and the inner connection tube, and then high pressure gas can will be central
The blocking foreign matter being bonded in water drainage pipe of air conditioner is blown down, and when central air-conditioning works again, foreign matter is just gone out with drainpipe by water；
The drainpipe protection portion 7 includes upper protective shell 701 and lower protective shell 702, the left and right sidewall of the upper protective shell
It is fixedly connected to plug division 703, the left and right sidewall of the lower protective shell is fixedly connected to be used cooperatively with the plug division
Plug socket 704, the plug division includes grafting frame 7031, and the upper end of the grafting frame is fixedly connected with connecting plate 7032, institute
Connecting plate is stated for being fixedly connected with the upper protection shell side wall, the inner sidewall of the grafting frame is fixedly connected with tongue 7033
One end, the other end of the tongue, which is fixed as one, forms pressing plate 7034, and the side wall of the tongue is equipped with protrusion 7035, described
Connection thin slice 7036 is fixedly connected between the lower part of tongue and the grafting frame, the connection thin slice is for reinforcing the tongue
Lower part, the inner sidewall of the grafting frame and be located at the pressing plate on the downside of be symmetrically arranged with limit plate 7037, the limit
Plate is used to limit the movable area of the pressing plate, and the plug socket includes grafting shell 7041, the side wall of the grafting shell
It is equipped with the limit hole 7042 used with the male cooperation, staff need to only be pressed the pressing plate by finger, make institute
It states tongue to tilt inwardly, drives the protrusion to tilt inwardly, while the plug division being inserted into the plug socket, institute
It states and protrudes out into the limit hole, stop pressing the pressing plate, the protrusion indwelling is in the limit hole, the limit
The position restriction of the protrusion, the tongue position are fixed in position hole, and thus the plug division is fixed in the plug socket, most
The upper protective shell and the lower protective shell can be fixedly connected on central air-conditioning row by the plug division and the plug socket eventually
The lateral wall of water pipe plays cold insulation moisture-proof role to central water drainage pipe of air conditioner.
Specifically, the shell for screwing portion be it is rectangular, the inner cavity for screwing portion is circle, rectangular described to screw
Portion's shell is convenient for screwing, and the first pipe fitting interconnecting piece is connect respectively with central air-conditioning drainpipe and the second pipe fitting interconnecting piece
The process being connected is more convenient, and the inner cavity that portion is screwed described in circle is convenient for connecting with central air-conditioning drainpipe and described second manages
Part interconnecting piece is connected.
Specifically, the right connection end includes outer pipe shell 2031, the inside of the outer pipe shell is equipped with inner connection tube
2032, the right connection end and the first connecting portion are clamped, the ring formed between the outer pipe shell and the inner connection tube
Shape cavity and the first connecting portion are clamped, clamping make it is easy for installation between the right connection end and the first connecting portion,
The inner connection tube guarantees that central air-conditioning drainpipe is in unimpeded state.
Specifically, the riser portions caliber of the tee tube is greater than cross tube sections caliber, the electromagnetic impulse valve is opened,
The gas bag provides gas source for the electromagnetic impulse valve, and the electromagnetic impulse valve will make gas enter the threeway with elevated pressures
Guan Zhong, high pressure gas enter the cross tube sections along the riser portions of the tee tube, along the both ends of the cross tube sections point
It does not enter in the left connection end and the inner connection tube, then high pressure gas can will be bonded in central air-conditioning drainpipe
It blocks foreign matter to blow down, when central air-conditioning works again, foreign matter is just gone out with drainpipe by water, the riser portions of the tee tube
Caliber is greater than cross tube sections caliber, and air pressure increases again when high pressure gas is entered during transverse tube by vertical tube, be conducive to by
The blocking foreign matter being bonded in central air-conditioning drainpipe is blown down.
Specifically, the inner sidewall of the upper protective shell and the lower protective shell is painted with cold insulation damp-proof layer, cold insulation is anti-
Damp layer is made of matizhi, and matizhi is using chemical bonding agent, film forming agent, thickener and mineral filler and amount of retardant structure
At matizhi has good characteristics, the cold insulations being made of matizhi such as waterproofness, freeze-proof, aging not easy to crack moisture-proof
Layer has cold insulation moisture-proof role to central water drainage pipe of air conditioner, can effectively prevent the water in central air-conditioning drainpipe in process of refrigerastion
Its surface is easy the case where condensation, to avoid the case where flooding bubble furred ceiling generation.
Specifically, being uniformly provided with raised line on the side wall of the pressing plate, staff need to only press institute by finger
Pressing plate is stated, tilts the tongue inwardly, drives the protrusion to tilt inwardly, while the plug division is inserted into institute
It states in plug socket, it is described to protrude out into the limit hole, stop pressing the pressing plate, the protrusion indwelling is in the limit
In the hole of position, the limit hole fixes the position restriction of the protrusion, the tongue position, and thus the plug division is fixed on institute
It states in plug socket, the final upper protective shell can be fixedly connected by the plug division with the plug socket with the lower protective shell
In the lateral wall of central air-conditioning drainpipe, cold insulation moisture-proof role is played to central water drainage pipe of air conditioner, the protrusion line can prevent hand
Refer to and generate sliding when pressing the pressing plate, this component facilitates finger to press the pressing plate.
Working principle: when installing to drainpipe protection portion, staff only need to press pressing plate by finger, make to insert
Tongue tilts inwardly, drives protrusion to tilt inwardly, while plug division being inserted into plug socket, protrudes out into limit hole
In, stop pressing pressing plate, raised indwelling is in limit hole, and limit hole fixes raised position restriction, tongue position, thus
Plug division is fixed in plug socket, and finally upper protective shell and lower protective shell can be fixedly connected on center by plug division and plug socket
The lateral wall of water drainage pipe of air conditioner plays cold insulation moisture-proof role to central water drainage pipe of air conditioner, can effectively prevent central air-conditioning drainpipe
In water the case where its surface is easy condensation in process of refrigerastion, thus the case where avoiding flooding bubble furred ceiling generation；
First pipe fitting interconnecting piece and the second pipe fitting interconnecting piece are connected between central air-conditioning drainpipe at a certain position, when
When central air-conditioning drainpipe causes blockages, electromagnetic impulse valve is opened, gas bag provides gas source, electromagnetic pulse for electromagnetic impulse valve
Valve will be such that gas enters in tee tube with elevated pressures, and high pressure gas enters cross tube sections, edge along the riser portions of tee tube
The both ends of cross tube sections have respectively entered in left connection end and inner connection tube, and then high pressure gas can be by central air-conditioning drainpipe
The blocking foreign matter of interior bonding is blown down, and when central air-conditioning works again, foreign matter is just gone out with drainpipe by water, easy to operate, section
Human-saving and time.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of central air-conditioning drains protection of pipe structure, including the first pipe fitting interconnecting piece (1) and drainpipe protection portion (7), special
Sign is: the first pipe fitting interconnecting piece (1) includes screwing portion (101), and the lateral wall for screwing portion (101) is equipped with anti-slip part
(102), the anti-slip part (102) is made of anti-skid chequer, and the left end for screwing portion (101) is integrally formed with first connecting portion
(103), the right end for screwing portion (101) is integrally formed with second connecting portion (104), the second connecting portion (104) it is outer
Side wall is equipped with screw thread, and the first connecting portion (103) is connected with the second pipe fitting interconnecting piece (2), the second pipe fitting interconnecting piece (2)
Including intermediate tube (201), the left and right end of the intermediate tube (201) is respectively integrally formed with left connection end (202) and right connection
End (203), through tee tube (3) are equipped on the intermediate tube (201), the riser portions of the tee tube (3) are through described
Intermediate tube (201), cross tube sections of the tee tube (3) or so end respectively with the left connection end (202) and the right company
It connects end (203) to be connected, the riser portions upper end of the tee tube (3) is connected with L shape connecting tube (4), the L shape connecting tube
(4) cross tube sections right end is connected with the outlet side of electromagnetic impulse valve (5), the inlet end and gas of the electromagnetic impulse valve (5)
Packet (6) is connected by connecting tube, the electromagnetic impulse valve (5) and the gas bag (6) be mounted on described in screw portion (101)
Sidewall upper；
The drainpipe protection portion (7) includes upper protective shell (701) and lower protective shell (702), a left side for the upper protective shell (701)
Right side wall is fixedly connected to plug division (703), and the left and right sidewall of the lower protective shell (702) is fixedly connected to inserts with described
The plug socket (704) that socket part (703) is used cooperatively, the plug division (703) include grafting frame (7031), the grafting frame
(7031) upper end is fixedly connected with connecting plate (7032), and the inner sidewall of the grafting frame (7031) is fixedly connected with tongue
(7033) one end, the other end of the tongue (7033), which is fixed as one, to be formed pressing plate (7034), the tongue (7033)
Side wall be equipped with raised (7035), be fixedly connected with and connect between the lower part of the tongue (7033) and the grafting frame (7031)
Thin slice (7036), the inner sidewall of the grafting frame (7031) and be located at the pressing plate (7034) on the downside of be symmetrically arranged with limit plate
(7037), the plug socket (704) includes grafting shell (7041), the side wall of the grafting shell (7041) be equipped with it is described
The limit hole (7042) that raised (7035) are used cooperatively.
2. a kind of central air-conditioning according to claim 1 drains protection of pipe structure, it is characterised in that: it is described to screw portion
(101) shell be it is rectangular, the inner cavity for screwing portion (101) be circle.
3. a kind of central air-conditioning according to claim 1 drains protection of pipe structure, it is characterised in that: the right connection end
It (203) include outer pipe shell (2031), the inside of the outer pipe shell (2031) is equipped with inner connection tube (2032).
4. a kind of central air-conditioning according to claim 1 drains protection of pipe structure, it is characterised in that: the tee tube (3)
Riser portions caliber be greater than cross tube sections caliber.
5. a kind of central air-conditioning according to claim 1 drains protection of pipe structure, it is characterised in that: the upper protective shell
(701) and the inner sidewall of the lower protective shell (702) is painted with cold insulation damp-proof layer.
6. a kind of central air-conditioning according to claim 1 drains protection of pipe structure, it is characterised in that: the pressing plate
(7034) raised line is uniformly provided on side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408585.3A CN110173881B (en) | 2019-05-16 | 2019-05-16 | Central air conditioning drain pipe protection architecture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910408585.3A CN110173881B (en) | 2019-05-16 | 2019-05-16 | Central air conditioning drain pipe protection architecture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110173881A true CN110173881A (en) | 2019-08-27 |
| CN110173881B CN110173881B (en) | 2021-03-12 |
Family
ID=67691268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910408585.3A Expired - Fee Related CN110173881B (en) | 2019-05-16 | 2019-05-16 | Central air conditioning drain pipe protection architecture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110173881B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094025U (en) * | 1991-07-16 | 1992-01-22 | 祁家毅 | Pulsating wave residue remover |
| US20030010381A1 (en) * | 2001-07-03 | 2003-01-16 | Kimbrough Atwood M. | HVAC enviro-clean valve |
| US20060042292A1 (en) * | 2004-08-27 | 2006-03-02 | Kimbrough Atwood M | HVAC enviro-clean valve - SO model |
| CN106642440A (en) * | 2015-10-29 | 2017-05-10 | 张贝 | Active condensation preventing type radiant cooling structure and use method thereof |
| CN208579510U (en) * | 2018-03-20 | 2019-03-05 | 杭州能工科技有限公司 | Central air-conditioning condensate pipe structure |
-
2019
- 2019-05-16 CN CN201910408585.3A patent/CN110173881B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2094025U (en) * | 1991-07-16 | 1992-01-22 | 祁家毅 | Pulsating wave residue remover |
| US20030010381A1 (en) * | 2001-07-03 | 2003-01-16 | Kimbrough Atwood M. | HVAC enviro-clean valve |
| US20060042292A1 (en) * | 2004-08-27 | 2006-03-02 | Kimbrough Atwood M | HVAC enviro-clean valve - SO model |
| CN106642440A (en) * | 2015-10-29 | 2017-05-10 | 张贝 | Active condensation preventing type radiant cooling structure and use method thereof |
| CN208579510U (en) * | 2018-03-20 | 2019-03-05 | 杭州能工科技有限公司 | Central air-conditioning condensate pipe structure |
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| Publication number | Publication date |
|---|---|
| CN110173881B (en) | 2021-03-12 |
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Address after: Building 8, 8188 Daye Road, Fengxian District, Shanghai, 201409 Patentee after: Shanghai Yuhe Environmental Protection Technology Co.,Ltd. Address before: Room 1233, building a, 8885 Hutai Road, Baoshan District, Shanghai, 201900 Patentee before: Shanghai Yuhe Environmental Protection Technology Co.,Ltd. |
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