CN106016232A - Outdoor frozen tube dredge device and method - Google Patents
Outdoor frozen tube dredge device and method Download PDFInfo
- Publication number
- CN106016232A CN106016232A CN201610318220.8A CN201610318220A CN106016232A CN 106016232 A CN106016232 A CN 106016232A CN 201610318220 A CN201610318220 A CN 201610318220A CN 106016232 A CN106016232 A CN 106016232A
- Authority
- CN
- China
- Prior art keywords
- vapor
- valve
- steam
- vent valve
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B7/00—Water main or service pipe systems
- E03B7/09—Component parts or accessories
- E03B7/14—Devices for thawing frozen pipes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
- F22B33/18—Combinations of steam boilers with other apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Cookers (AREA)
Abstract
The invention discloses an outdoor frozen tube dredge device and method. The dredge device comprises a fuel gas tank, a steam tank support, a fuel gas stove and a steam tank. The fuel gas tank is connected with the fuel gas stove through a fuel gas tube. The fuel gas stove is arranged at the bottom of the steam tank support. The steam tank is mounted on the steam tank support. Vent valves, a safety valve, a pressure gage and a water feed valve are mounted at the tank top of the steam tank. The vent valves are used for spraying steam toward the inside of a frozen tube through corresponding air guide tubes so that dredging can be achieved. The outdoor frozen tube dredge device can adapt to different environments and is simple in structure, small in occupied space, low in cost, capable of conveniently and fast dredging the frozen and blocked tube, particularly suitable for dredging a tube with a long frozen distance and large bending amplitude and capable of filling all corners of the tube with steam and particularly filling the steam into the positions where the curvature is very large and an ordinary dredge device cannot reach with steam by utilization of the characteristic that the high pressure steam does not have a fixed shape. Therefore, the outdoor frozen tube dredge device and method are suitable for dredging different tubes with different blocked positions, and have the advantage that tube dredging is flexible and convenient.
Description
Technical field
The present invention relates to a kind of dredge and dredging method thereof, be specifically related to a kind of outdoor frost pipe dredge and
Its dredging method, belongs to industry and Domestic pipeline dredging field.
Background technology
North of china in winter pipeline ice blockage is that people inevitably meet in daily life and commercial production
The problem arrived.Therefore for individual or unit is all the thing that must do to dredge the pipeline of frost, needs to ask
The personnel helping specialty dredge, and not only can be greatly increased the cost of maintenance, also can delay a lot of time, especially
It is for the pipeline of regular frost, owing to frost pipeline cannot determine concrete frost blocking position, so
More increase the difficulty of dredging, due to majority be all outdoor or non-transformer, apyrogenic in the case of carry out
The dredging of frost pipeline, difficulty is very big.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art, and a kind of outdoor frost pipe dredging is provided
Device, has the pipeline drainer of different tube diameters, can either improve dredging effect, and be applicable to multiple blocking position
Put.
The present invention also provides for the dredging method of a kind of above-mentioned outdoor frost pipe dredge, and the nothing utilizing high steam is solid
The feature of shaped, can be filled with each corner of pipeline by steam, enable in particular to enter flexibility very big and
The place that general dredge cannot arrive.
The present invention is achieved through the following technical solutions:
A kind of outdoor frost pipe dredge, including fuel cartridge, vapor can support, gas-cooker and vapor can, its
Being characterised by, described fuel cartridge is connected with gas-cooker by Gas Pipe；Described gas-cooker is placed on steaming
Bottom vapour tank bracket, vapor can is placed on vapor can support；The tank deck of described vapor can is provided with venting
Valve, vent valve sprays steam by airway in the pipeline of frost thus dredges.
Preferably, described vent valve has vent valve to be two, and one is Φ 16 vent valve, and another is Φ 32
Vent valve；The caliber of described Φ 16 vent valve is 16mm, is circumscribed with the airway that caliber is 16mm；
The caliber of described Φ 32 vent valve is 32mm, is circumscribed with the airway that caliber is 32mm；Operator
One can be connected according to icy conditions from main separation and connect airway, thus spray different quantity of steams, injection
During steam, another connecting tube is closed.
Preferably, described airway is crosslinked polyethylene (PE-Xa) pipe, one end and described Φ 16 vent valve
Or Φ 32 vent valve connects；The other end connect have nozzle can be inserted directly into frost pipeline carry out spray steam, also
The end of airway directly can be processed into nozzle thus be inserted directly into frost pipeline and carry out spraying steam.
Preferably, the tank deck of described vapor can, it is also equipped with relief valve, Pressure gauge and priming valve.
Preferably, described priming valve offers water inlet.
Preferably, described vapor can, the foot of tank body is provided with emptying water valve, the middle and lower part peace of tank body
Equipped with.
The present invention also provides for the dredging method of a kind of above-mentioned outdoor frost pipe dredge, comprises the following steps:
(1) vent valve of one end of airway with vapor can top is connected, according to icy conditions select with
Φ 16 vent valve or Φ 32 vent valve connect, and another vent valve cuts out；By the other end of airway with nozzle even
Connect, then nozzle is positioned over pipeline cooling position；
(2) gas-cooker being placed on vapor can frame bottom, vapor can is placed on vapor can support；Then
Gas-cooker is connected with fuel cartridge by Gas Pipe；
(3) added water in the tank body of vapor can by the water inlet on priming valve, observe water filling by observation port
Amount, when after 40%～60% that the water yield is vapor can volume, stops adding water, by the vent valve on vapor can, peace
Full valve, priming valve, observation port, emptying water valve Close All；
(4) open fuel cartridge, after gas circulation to gas-cooker, put cooking stove burning, can carry to vapor can
For heat energy endlessly, after vapor can is heated, in tank, produce the substantial amounts of steam with bigger pressure,
Opening vent valve when Pressure gauge display pressure inside the tank is 0.2-0.3MPa, the steam of bigger pressure passes through inducing QI
The nozzle of pipe injects directly on the chill point of pipeline, thus dredges；
(5), after pipe-dredging terminates, close fuel cartridge, gas-cooker, open the relief valve of vapor can, wait to steam
After the Pressure gauge display pressure of vapour tank is 0, water temperature is reduced to less than 50 DEG C, opens and be vented water valve by vapor can
Interior water is all vented, and then dismounting corresponding component preserves respectively.
The present invention compared with prior art has the effect that
(1) using PE-Xa pipe as airway, owing to PE-Xa pipe belongs to half flexible pipe, there is certain degree of hardness, spray
Mouth will be fitted on the inwall of pipeline to be unclogged, is passed through high temperature and high pressure steam, and steam is entering treating of pipeline
After dredging section, after dredging steam fills blocking section, dredging steam will carry out high-temperature molten to the pipeline of blocking
Changing dredging, the liquid of steam condensation and the liquid of frost thawing can flow out pipeline or are stored in pipe by nature simultaneously
Inside road, along with dredging pipeline melts, the continuous entrance of dredging pipeline, dredging distance constantly lengthens, dredging
Can be with endless on Distance Theory, the present invention is to utilize by airway nozzle and enter distance realization to be unclogged
Location in pipeline and fixing, the steam seal ability of the present invention, extends very capable, has steam and connects
Reliably, the advantage dredging distance.Along with dredging steam is constantly filled with, dredging distance constantly lengthens, by
In the feature that PE-Xa has a hard tube and flexible pipe has concurrently, dredging distance and direction can change, and have thin
Current flow angle degree transmutability.Owing to the pipeline of nozzle utilization own makes, do not come off, therefore, be effectively guaranteed
Nozzle is fitted in all the time during dredging and does not falls off on the inwall of pipeline to be unclogged, and having connection can
Lean on, dredge advantage that is effective and that do not limited by pipeline inner space.
(2) airway of the present invention is flexible, is applicable to the pipeline of bending；When nozzle is given vent to anger, due to stifled
Plug thing, airway barrier effect, steam cannot spray smoothly and squeeze out mouth of a river sidewall, plays certain closing
Effect, along with steam get more and more, pressure is the most increasing, thus reaches fast melt ice cube,
The purpose of dredging pipeline.
(3) apparatus of the present invention can carry out operation in outdoor or field, is not limited by the condition such as space, temperature
System, utilizes fuel cartridge and Portable steam tank to have pressure greatly to produce high steam, the spy that persistence is strong
Point.
Therefore, the present invention has adaptation varying environment, simple in construction, takes up room little, with low cost, energy
The blocking pipeline of dredging frost easily and quickly, is especially suitable for dredging frost distance, the pipe that bending amplitude is big
Road, utilizes the feature without solid shape of high steam, steam can be filled with each corner of pipeline, especially
It can enter the flexibility place that general dredge cannot arrive very greatly, and therefore, the present invention is applicable to many
Plant the pipe-dredging that blocking position is different, there is dredging advantage dexterous, convenient.
Accompanying drawing explanation
Fig. 1: the overall structure schematic diagram of frost pipe dredge in outdoor of the present invention；
Fig. 2: the top view of frost pipe dredge vapor can in outdoor of the present invention；
Wherein: 1-fuel cartridge；2-Gas Pipe；3-vapor can support；4-gas-cooker；5-airway；6-nozzle；
7-vent valve；8-relief valve；9-Pressure gauge；10-priming valve；11-vapor can；12-observation port, 13-unwatering
Valve；7-1-Φ 16 vent valve；7-2-Φ 32 vent valve；Water inlet on 10-1-priming valve.
Detailed description of the invention
Below in conjunction with the accompanying drawings the structure of the outdoor frost pipe dredge of the present invention is described in detail.
A kind of outdoor frost pipe dredge, as shown in Figure 1: include fuel cartridge 1, vapor can support 3, combustion gas
Stove 4 and vapor can 11: fuel cartridge is connected with gas-cooker by Gas Pipe 2；Gas-cooker 4 is placed on steam
Bottom tank bracket, vapor can 11 is placed on vapor can support 3；The tank deck of vapor can 11 is provided with venting
Valve 7, relief valve 8, Pressure gauge 9 and priming valve 10, priming valve 10 offers water inlet 10-1；Described
Vent valve have two kinds, one be Φ 16 vent valve 7-1 (direct 16mm), one be Φ 32 vent valve 7-2
(direct 32mm), is respectively connected with the airway 5 of different tube diameters；Vent valve passes through airway 5 to frost
Pipeline in injection steam thus dredge.
Described airway 5 is crosslinked polyethylene (PE-Xa) pipe, one end and described Φ 16 vent valve 7-1 or Φ 32
Vent valve 7-2 connects, and the other end connects nozzle 6.
Described vapor can 11, the foot of tank body is provided with emptying water valve 13, and the middle and lower part of tank body is provided with 12.
This outdoor frost pipe dredge has convenient transportation, and heat is high, not by features such as indoor and outdoor surroundings are limited.
Below in conjunction with the specific embodiment the making when carrying out pipe-dredging to the outdoor frost pipe dredge of the present invention
It is described in detail by method.
Embodiment 1:
In December, 2015, Changchun City Factory Building water supply pipe is frozen in, and pipeline is frozen about 2m,
Use outdoor frost pipe dredge of the present invention to dredge, comprise the following steps:
(1) by the Φ 32 of one end of the airway 5 (PE-Xa pipe) of a diameter of 32mm Yu vapor can 11 top
The connection of vent valve 7-2, another vent valve cuts out；The other end of airway is connected with nozzle 6, then will
Nozzle is positioned over pipeline cooling position；Nozzle and the tube wall of pipeline to be unclogged form preliminary sealing and to be unclogged
Pipeline sliding, nozzle enters pipeline to be unclogged dropping place, in this course, according to band dredging frost pipe
Road diameter selects airway and the nozzle of different-diameter；Basic guarantee nozzle symmetrical centre and pipe to be unclogged
The center in road is overlapping, prepares for follow-up further supercharging；
(2) gas-cooker 4 being placed on vapor can frame bottom, vapor can 11 is placed on vapor can support 3；
Then gas-cooker is connected with fuel cartridge 1 by Gas Pipe 2；
(3) in the tank body of vapor can 11, add tap water by the water inlet 10-1 on priming valve 10, pass through
Water injection rate observed by observation port 12, when after 60% that the water yield is vapor can 11 volume, stops adding water, by steam
Vent valve 7 on tank, relief valve 8, priming valve 10, observation port 12, emptying water valve 13 Close All；
(4) open fuel cartridge 1, after gas circulation to gas-cooker 4, put cooking stove burning, can be to steam
Tank 11 provides heat energy endlessly, after vapor can is heated, produces and substantial amounts of have bigger pressure in tank
Steam, when Pressure gauge 9 shows that pressure inside the tank opens vent valve 7, the steaming of bigger pressure when being 0.2-0.3MPa
Vapour injects directly on the chill point of pipeline by the nozzle of airway, thus dredges；Due to nozzle with treat
The preliminary sealing formed between the tube wall of dredging pipeline, further increases the pressure in pipeline, frost pipe
Road melts rapidly, becomes liquid and by steam or certainly flows out pipeline, along with the thawing nozzle of frost is continuous the most forward
Dredging, until dredging complete by integrated piping；Within about 20 minutes, frost water pipe can be dredged.
(5), after pipe-dredging terminates, close fuel cartridge 1, gas-cooker 4, open the relief valve 8 of vapor can,
Show that pressure is 0, after water temperature is reduced to below 50 DEG C, opens emptying water valve 13 until the Pressure gauge 9 of vapor can
All being vented by water in vapor can, then dismounting corresponding component preserves respectively.
Embodiment 2:
Dandong City of Liaoning Province's in January, 2016 Factory Building water supply pipe is frozen in, and pipeline is frozen about 1.5m, adopts
Dredge with outdoor frost pipe dredge of the present invention, comprise the following steps:
(1) by the Φ 16 of one end of the airway 5 (PE-Xa pipe) of a diameter of 16mm Yu vapor can 11 top
Vent valve 7-1 connects, and another vent valve cuts out；The other end of airway is connected with nozzle 6, then will spray
Mouth is positioned over pipeline cooling position；Nozzle forms preliminary sealing and to be unclogged with the tube wall of pipeline to be unclogged
Pipeline sliding, nozzle enters pipeline to be unclogged dropping place, in this course, according to band dredging frost pipeline
Diameter selects airway and the nozzle of different-diameter；Basic guarantee nozzle symmetrical centre and pipeline to be unclogged
Center overlapping, prepare for follow-up further supercharging；
(2) gas-cooker 4 being placed on vapor can frame bottom, vapor can 11 is placed on vapor can support 3；
Then gas-cooker is connected with fuel cartridge 1 by Gas Pipe 2；
(3) in the tank body of vapor can 11, add tap water by the water inlet 10-1 on priming valve 10, pass through
Water injection rate observed by observation port 12, when after 40% that the water yield is vapor can 11 volume, stops adding water, by steam
Vent valve 7 on tank, relief valve 8, priming valve 10, observation port 12, emptying water valve 13 Close All；
(4) open fuel cartridge 1, after gas circulation to gas-cooker 4, put cooking stove burning, can be to steam
Tank 11 provides heat energy endlessly, after vapor can is heated, produces and substantial amounts of have bigger pressure in tank
Steam, when Pressure gauge 9 shows that pressure inside the tank opens vent valve 7, the steaming of bigger pressure when being 0.2-0.3MPa
Vapour injects directly on the chill point of pipeline by the nozzle of airway, thus dredges；Due to nozzle with treat
The preliminary sealing formed between the tube wall of dredging pipeline, further increases the pressure in pipeline, frost pipe
Road melts rapidly, becomes liquid and by steam or certainly flows out pipeline, along with the thawing nozzle of frost is continuous the most forward
Dredging, until dredging complete by integrated piping；Frost water pipe can be dredged after about 15 minutes.
(5), after pipe-dredging terminates, close fuel cartridge 1, gas-cooker 4, open the relief valve 8 of vapor can,
Show that pressure is 0, after water temperature is reduced to below 50 DEG C, opens emptying water valve 13 until the Pressure gauge 9 of vapor can
All being vented by water in vapor can, then dismounting corresponding component preserves respectively.
Examples detailed above simply for technology design and the technical characterstic of the present invention are described, can not limit this with this
The protection domain of invention.All equivalent transformations done according to the essence of the present invention or modification, all should contain
Within protection scope of the present invention.
Claims (7)
1. an outdoor frost pipe dredge, including fuel cartridge (1), vapor can support (3), gas-cooker (4)
With vapor can (11), it is characterised in that described fuel cartridge is connected with gas-cooker by Gas Pipe (2)；
Described gas-cooker (4) is placed on vapor can frame bottom, and vapor can (11) is placed in vapor can support (3)
On；The tank deck of described vapor can (11) is provided with vent valve (7), vent valve by airway (5) to
Spray steam in the pipeline of frost thus dredge.
Dredge the most according to claim 1, it is characterised in that described vent valve has the vent valve to be
Two, one is Φ 16 vent valve (7-1), and another is Φ 32 vent valve (7-2)；Described Φ 16 is put
The caliber of air valve is 16mm, is circumscribed with the airway that caliber is 16mm；The pipe of described Φ 32 vent valve
Footpath is 32mm, is circumscribed with the airway that caliber is 32mm.
Dredge the most according to claim 1, it is characterised in that described airway (5) is for handing over
Connection polyethylene (PE-Xa) pipe, one end is with described Φ 16 vent valve (7-1) or Φ 32 vent valve (7-2) even
Connecing, the other end connects nozzle (6).
Dredge the most according to claim 1, it is characterised in that the tank of described vapor can (11)
Top, is also equipped with relief valve (8), Pressure gauge (9) and priming valve (10).
Dredge the most according to claim 4, it is characterised in that open on described priming valve (10)
It is provided with water inlet (10-1).
Dredge the most according to claim 1, it is characterised in that described vapor can (11), tank
The foot of body is provided with emptying water valve (13), and the middle and lower part of tank body is provided with (12).
7. the dredging method of the dredge described in any one of claim 1～6, it is characterised in that include following
Step:
(1) one end of airway (5) is connected with the vent valve (7) at vapor can (11) top, root
Select to be connected with Φ 16 vent valve (7-1) or Φ 32 vent valve (7-2) according to icy conditions, another vent valve
Close；The other end of airway (5) is connected with nozzle (6), then nozzle is positioned over pipeline frost
Position；
(2) gas-cooker (4) being placed on vapor can frame bottom, vapor can (11) is placed in vapor can and props up
On frame (3)；Then gas-cooker is connected with fuel cartridge (1) by Gas Pipe (2)；
(3) added water in the tank body of vapor can (11) by the water inlet (10-1) on priming valve (10),
Observe water injection rate by observation port (12), when after 40%～60% that the water yield is vapor can (11) volume, stop
Only add water, by the vent valve (7) on vapor can, relief valve (8), priming valve (10), observation port (12),
Emptying water valve (13) Close All；
(4) open fuel cartridge (1), after gas circulation to gas-cooker (4), put cooking stove burning,
Thering is provided heat energy endlessly to vapor can (11), after vapor can is heated, in tank, generation is substantial amounts of has
The steam of bigger pressure, opens vent valve (7) when Pressure gauge (9) display pressure inside the tank is 0.2-0.3MPa,
The steam of bigger pressure injects directly on the chill point of pipeline by the nozzle of airway, thus dredges；
(5), after pipe-dredging terminates, close fuel cartridge (1), gas-cooker (4), open the safety of vapor can
Until the Pressure gauge (9) of vapor can, valve (8), shows that pressure is 0, after water temperature is reduced to below 50 DEG C, opens
Water in vapor can is all vented by emptying water valve (13), and then dismounting corresponding component preserves respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610318220.8A CN106016232A (en) | 2016-05-13 | 2016-05-13 | Outdoor frozen tube dredge device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610318220.8A CN106016232A (en) | 2016-05-13 | 2016-05-13 | Outdoor frozen tube dredge device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106016232A true CN106016232A (en) | 2016-10-12 |
Family
ID=57099501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610318220.8A Pending CN106016232A (en) | 2016-05-13 | 2016-05-13 | Outdoor frozen tube dredge device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106016232A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485604A (en) * | 2020-05-08 | 2020-08-04 | 东阳面世建筑工程有限公司 | Deicing equipment for pipeline in wall body |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202884876U (en) * | 2012-11-11 | 2013-04-17 | 卢泉生 | Portable vapor generating tank device |
| CN104624573A (en) * | 2015-01-28 | 2015-05-20 | 杨玉林 | Device and method for dredging gas production pipeline blocked due to freezing |
| CN204534521U (en) * | 2015-03-25 | 2015-08-05 | 罗承健 | The straight spraying steam machine of multifunctional hand pushing-type |
| CN205678648U (en) * | 2016-05-13 | 2016-11-09 | 黑龙江科技大学 | A kind of outdoor frost pipe dredge |
-
2016
- 2016-05-13 CN CN201610318220.8A patent/CN106016232A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202884876U (en) * | 2012-11-11 | 2013-04-17 | 卢泉生 | Portable vapor generating tank device |
| CN104624573A (en) * | 2015-01-28 | 2015-05-20 | 杨玉林 | Device and method for dredging gas production pipeline blocked due to freezing |
| CN204534521U (en) * | 2015-03-25 | 2015-08-05 | 罗承健 | The straight spraying steam machine of multifunctional hand pushing-type |
| CN205678648U (en) * | 2016-05-13 | 2016-11-09 | 黑龙江科技大学 | A kind of outdoor frost pipe dredge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111485604A (en) * | 2020-05-08 | 2020-08-04 | 东阳面世建筑工程有限公司 | Deicing equipment for pipeline in wall body |
| CN111485604B (en) * | 2020-05-08 | 2021-04-27 | 芜湖市创源新材料有限公司 | Deicing equipment for pipeline in wall body |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105135143B (en) | A kind of freezing prevention tubing water trap and its application method | |
| CN205678648U (en) | A kind of outdoor frost pipe dredge | |
| CN106016232A (en) | Outdoor frozen tube dredge device and method | |
| CN113003011B (en) | Rainwater foam liquid diversion device for oil tank sump | |
| CN210529831U (en) | Anti-freezing fire hydrant | |
| CN204901328U (en) | Liquefied gas storage tank heating device | |
| CN107339470A (en) | Anti-suck water sealed tank | |
| CN207919649U (en) | A kind of copper ashes slow cooling field Nti-freezing device for water pipe | |
| CN205431287U (en) | Big -arch shelter rising temperature device plants | |
| CN207525262U (en) | A kind of Iron Works cooling body | |
| CN206112519U (en) | Ou ye stove high -pressure gas system water discharge control means | |
| CN201819432U (en) | Solar water heater water tank with draining function | |
| CN2898559Y (en) | Self-shutting drainer | |
| CN215636577U (en) | Pipeline gas water seal and condensate water discharge device | |
| CN205682952U (en) | A kind of antidrip kettle | |
| CN208967208U (en) | A kind of device avoiding water hammer damage for space division vaporizer steam valve | |
| CN205102441U (en) | Flat heat preservation air valve is prevented inhaling by solar energy water tank | |
| CN205368243U (en) | Dry coke quenching water sealed tank automatic water supply device | |
| CN204492758U (en) | A kind of Petroleum Production on-the-spot oil pipe thorn cleaning device | |
| CN207033414U (en) | The ground gas extraction pumping plant fire prevention artificial drainage, slag discharge device of tank | |
| CN105297832B (en) | Water suction device and water suction method thereof | |
| CN209861916U (en) | Negative pressure type independent purification cage | |
| CN208221842U (en) | A kind of anti-corrosive steel tube | |
| CN209412962U (en) | A kind of high and cold mountain area Anti-freezing water storage device using underground heat and solar energy | |
| CN205655505U (en) | Solar water heater's water economizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |