CN106812593B - Expansion tank - Google Patents
Expansion tank Download PDFInfo
- Publication number
- CN106812593B CN106812593B CN201611250100.5A CN201611250100A CN106812593B CN 106812593 B CN106812593 B CN 106812593B CN 201611250100 A CN201611250100 A CN 201611250100A CN 106812593 B CN106812593 B CN 106812593B
- Authority
- CN
- China
- Prior art keywords
- casing
- liquid level
- expansion tank
- level gauge
- expanding chamber
- 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.)
- Active
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0204—Filling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P2031/00—Fail safe
- F01P2031/18—Detecting fluid leaks
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Farming Of Fish And Shellfish (AREA)
Abstract
The invention discloses a kind of expansion tank.The expansion tank includes：Casing, expanded film, aeration valve and water compensating valve, expanded film are arranged in casing and box house are isolated into expanding chamber and air chamber；Aeration valve is arranged on casing and is connected with air chamber, and water compensating valve is arranged on casing and is connected with expanding chamber.According to the expansion tank of the present invention, the voltage stabilizing of cooling system can be conveniently realized by expanded film, while the expansion tank is simple in construction, it is easy to maintenance.
Description
Technical field
The present invention relates to technical field of vehicle, in particular to a kind of expansion tank.
Background technology
Traditional expansion tank realizes steady pressure of system using pressure valve, and structure is complex, and coolant has leakage
Risk, repair and maintenance is inconvenient, room for improvement be present.
The content of the invention
It is contemplated that at least solves one of above-mentioned technical problem of the prior art to a certain extent.Therefore, this hair
Bright purpose is to propose a kind of expansion tank simple in construction, easy to adjust.
According to the expansion tank of the present invention, including：Casing, expanded film, the expanded film are arranged in the casing and will
The box house is isolated into expanding chamber and air chamber；And aeration valve and water compensating valve, the aeration valve are arranged on the casing
And be connected with the air chamber, the water compensating valve is arranged on the casing and is connected with the expanding chamber.
According to the expansion tank of the present invention, by setting expanded film gentle so that casing is isolated into expanding chamber in box house
Room, and expanding chamber and air chamber is connected respectively with water compensating valve and aeration valve, so as to the pressure of regulating system, realize cooling system
Voltage stabilizing, while the expansion tank is simple in construction, it is easy to maintenance.
In some preferred embodiments of the invention, the expanded film includes：Expand membrane body and be arranged on the expansion
The annular perisporium of membrane body neighboring, the end of the annular perisporium and the inner peripheral surface of the casing are fixed.
Preferably, the annular perisporium is annular perisporium that is extensible and shrinking.
Further, the annular perisporium has pleated structure.
Preferably, the expansion membrane body is flat-bottom structure.
In some preferred embodiments of the invention, the liquid level being connected with the expanding chamber is additionally provided with the casing
Meter.
In some preferred embodiments of the invention, the liquid level gauge includes：Liquid level gauge body and observation window, the liquid level
Meter body is arranged on the casing, and vertical passageway is limited between the observation window and the liquid level gauge body, described vertical
The bottom of passage is connected by the communicating passage being opened on the casing with the expanding chamber.
Preferably, the liquid level gauge body is formed on the outer surface of the casing.
In some preferred embodiments of the invention, the high level being connected with the expanding chamber is additionally provided with the casing
Sensor and low liquid level sensor.
In some preferred embodiments of the invention, the water compensating valve is unidirectional water compensating valve, and the aeration valve is mended to be unidirectional
Air valve.
Brief description of the drawings
Fig. 1 is the structural representation of expansion tank according to embodiments of the present invention；
Fig. 2 is the scheme of installation of expanded film according to embodiments of the present invention in expansion tank；
Fig. 3 is the front view of expansion tank according to embodiments of the present invention；
Fig. 4 is the view in A-A directions in Fig. 3；
Fig. 5 is the structural representation of liquid level gauge according to embodiments of the present invention.
Reference：
Expansion tank 100, casing 1, expanding chamber 11, air chamber 12, communicating passage 13, high level sensor 14, low liquid level pass
Sensor 15, expanded film 2, membrane body 21 is expanded, annular perisporium 22, flange 221, aeration valve 3, water compensating valve 4, water injection valve 5, installation is hung
Ear 6, threaded mounting hole 61, liquid level gauge 7, observation window 71, vertical passageway 72.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
The instruction such as " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer "
Orientation or position relationship be based on orientation shown in the drawings or position relationship, be for only for ease of the description present invention and simplification retouched
State, rather than instruction or imply signified device or element there must be specific orientation, with specific azimuth configuration and operation,
Therefore it is not considered as limiting the invention.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the invention, " multiple " are meant that at least two, such as two
It is individual, three etc., unless otherwise specifically defined.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect or can communicate with one another；Can be joined directly together, can also be indirectly connected by intermediary, can
To be connection or the interaction relationship of two elements of two element internals.For the ordinary skill in the art,
The concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
Expansion tank 100 according to embodiments of the present invention is described referring to Fig. 1-Fig. 5.As Figure 1-Figure 5, according to this
The expansion tank 100 of inventive embodiments includes：Casing 1, expanded film 2, aeration valve 3 and water compensating valve 4.
As shown in Figure 1-Figure 3, casing 1 is configured to rectangular parallelepiped structure, further, as shown in figures 1 and 3, on casing 1 also
Installation hanger 6 can be provided with, installation hanger 6 can be two, and two installation hangers 6 can be located at the front end of casing 1 respectively
And rear end, further, installation hanger 6 is slab construction, and close to the side (left side or right side) of casing 1, and can on hanger 6
To be provided with threaded mounting hole 61, in order to which the installation of expansion tank 100 is fixed.
Further, water injection valve 5 can also be set on casing 1, and as shown in figures 1 and 3, water injection valve 5 can be arranged on case
On the rear wall of body 1, and setting is spaced apart with installation hanger 6, water injection valve 5 connects with expanding chamber 11, is thus easy to liquid swollen
Flowed between swollen room 11 and cooling system, so as to maintain the pressure of cooling system constant.
Expanded film 2 is arranged in casing 1 and is arranged on the internal insulation of casing 1 into expanding chamber 11 and air chamber 12, aeration valve 3
On casing 1, further, aeration valve 3 is arranged on the upper surface of casing 1, and is connected with air chamber 12, and water compensating valve 4 is also disposed at
On casing 1, further, water compensating valve 4 is arranged on the lower surface of casing 1, and is connected with expanding chamber 11, it is preferable that water compensating valve 4
Can be unidirectional water compensating valve 4, aeration valve 3 can be one-way gas-compensating valve 3.
It is understood that it is upper and lower two parts that it is completely isolated, which to be inflated film 2, for casing 1, i.e. air chamber 12 and expanding chamber 11.
Wherein expanding chamber 11 is used to store coolant, and air chamber 12 is used for storing compressed air, and air chamber 12 passes through the preliminary filling one of one-way gas-compensating valve 3
The gas of constant-pressure, the gas pressure are suitable with cooling system operating pressure；Expanding chamber 11 is by unidirectional water compensating valve 4 and utilizes pressure
Coolant is added expanding chamber 11 by power pump, and when liquid gradually increases in expanding chamber 11, fluid pressure constantly increases, and can promote expansion
2 upward compressed air of film, so that the pressure of gas pressure and cooling system reaches balance again, realizes the voltage stabilizing of system.
Expansion tank 100 according to embodiments of the present invention, by setting expanded film 2 inside casing 1 so that casing 1 to be isolated
Into expanding chamber 11 and air chamber 12, and expanding chamber 11 and air chamber 12 is connected respectively with water compensating valve 4 and aeration valve 3, be so as to adjust
The pressure of system, the voltage stabilizing of cooling system is realized, while the expansion tank 100 is simple in construction, it is easy to maintenance.
In some preferred embodiments, as shown in Figure 2 and Figure 4, the generally rectangular parallelepiped structure of expanded film 2, and middle part to
Lower recess, specifically, expanded film 2 can include：Membrane body 21 and annular perisporium 22 are expanded, further, expands membrane body 21
It is slightly less than the width of casing 1 for the width of flat-bottom structure, and expansion membrane body 21, annular perisporium 22 is arranged on expansion membrane body 21
Neighboring, and the end of annular perisporium 22 and the inner peripheral surface of casing 1 are fixed.
Specifically, as shown in Fig. 2, Fig. 4-Fig. 5, annular perisporium 22 upwardly extends from the edge of expansion membrane body 21, and ring
The upper end of shape perisporium 22 is provided with flange 221, and flange 221 prolongs from the upper end level of annular perisporium 22 to the direction of the inwall of casing 1
Stretch, and the madial wall of flange 221 and casing 1 is fixed, and is achieved in installation of the expanded film 2 in casing 1 and is fixed.
Preferably, annular perisporium 22 is annular perisporium 22 that is extensible and shrinking, and has pleated structure, so works as expansion
During hydraulic pressure dilutional hyponatremia in room 11, expansion membrane body 21 is can extrude, so that annular perisporium 22 shrinks deformation, when hydraulic pressure water
During reduction, expanded film 2 can downwards stretch and set back in the presence of self gravitation, so that the pressure regulation side of system
Just, and expanded film 2 structure it is simple, so as to effectively reduce the production cost of expansion tank 100.
In some preferred embodiments, as shown in Figure 1-Figure 3, liquid level gauge 7, liquid level gauge 7 are also provided with casing 1
It is connected with expanding chamber 11, specifically, as shown in Figure 1-Figure 3, liquid level gauge 7 can be located at one of side wall of expansion tank 100
On, and close to the front end of expansion tank 100, it is preferable that as shown in figure 5, liquid level gauge 7 protrudes the side wall of casing 1, and along casing 1
Vertical direction arrangement.
Further, liquid level gauge 7 can include：Liquid level gauge body and observation window 71, liquid level gauge body are arranged on casing 1
On, vertical passageway 72 is limited between observation window 71 and liquid level gauge body, the bottom of vertical passageway 72 is by being opened on casing 1
Communicating passage 13 be connected with expanding chamber 11.
Specifically, observation window 71 can be transparent glass cover plate, and inlay and be pressed together on liquid level gauge body, communicating passage 13
Set close to the bottom of casing 1 and perpendicular to vertical passageway 72, connection type liquid level gauge 7 is so formed, thus when expanding chamber 11
When liquid level changes, respective change can also occur for the liquid level in vertical passageway 72, consequently facilitating passing through transparent observation window 71
Observe the change of liquid level in casing 1.
Advantageously, liquid level gauge body may be integrally formed on the outer surface of casing 1, thus expansion tank 100 into
Type technique is simple, can simplify assembly process, so as to reduce production cost.
In some preferred embodiments, as shown in Fig. 1-Fig. 3, Fig. 5, sensor is also provided with casing 1, i.e., it is high
Liquid level sensor 14 and low liquid level sensor 15, it is preferable that high level sensor 14 and low liquid level sensor 15 and expanding chamber 11
It is connected, further, high level sensor 14 and low liquid level sensor 15 are positioned at the one of side wall that can be located at casing 1
On, and high level sensor 14 is located at the top of low liquid level sensor 15.
Preferably, expansion tank 100 according to embodiments of the present invention can have alarm, and alarm has liquid level mistake
High, too low warning function, it is preferable that alarm can be integrated on control instruments platform, and can be communicated with sensor, tool
Body, when cooling system hypertonia or too high system liquid level, high level sensor 14 can be triggered and sent out to control instruments platform
The too high warning message in liquor charging position；When cooling system hypotony or too low system liquid level, low liquid level sensor 15 can be triggered
The too low warning message of liquid level is sent to instrument desk.
The liquid level warning function of the embodiment of the present invention can realize the real-time monitoring to cooling system pressure and liquid level, so as to
The security of train operation is greatly improved, makes repair and maintenance more convenient.
The specific work process of expansion tank 100 according to embodiments of the present invention is described in detail referring to Fig. 1-Fig. 5：
As Figure 1-Figure 5, it is upper and lower two parts that it is completely isolated, which to be inflated film 2, for air chamber 12 and expanding chamber 11, air chamber 12
It is suitable with cooling system operating pressure by the gas of the preliminary filling certain pressure of one-way gas-compensating valve 3, the gas pressure；Expanding chamber 11 is logical
Coolant is added expanding chamber 11 by excess pressure pump, and is controlled by unidirectional water compensating valve 4, and the amount for adding coolant can be by liquid level gauge 7
Observation, the further filling of compression pump can be stopped when loading liquid level reaches 7 assigned position of liquid level gauge.
Expansion tank 100 is connected by water injection valve 5 with cooling system, and when system pressure raises, liquid passes through water injection valve 5
Into expanding chamber 11, make the increase of the pressure of expanding chamber 11, liquid level rise, promote the air in the upward compression air chamber 12 of expanded film 2, directly
Pressure in air chamber 12 is identical with the pressure in expanding chamber 11, realizes cooling system voltage stabilizing, and liquid level incrementss can pass through
Liquid level gauge 7 observes；When pressure reduces in cooling system, the liquid in expanding chamber 11 enters cooling system, so that expansion
Fluid pressure in room 11 reduces, and the gas push expanded film 2 in air chamber 12 moves downward so that the gas pressure in air chamber 12
Gradually reduce up to keeping constant with the pressure in expanding chamber 11, realize cooling system voltage stabilizing, liquid level reduction amount can pass through
Liquid level gauge 7 observes.
In summary, expansion tank 100 according to embodiments of the present invention, by inside casing 1 set expanded film 2 with incite somebody to action
Casing 1 is isolated into expanding chamber 11 and air chamber 12, and expanding chamber 11 and air chamber 12 is connected respectively with water compensating valve 4 and aeration valve 3, from
And the pressure of regulating system, the voltage stabilizing of cooling system is realized, while the expansion tank 100 is simple in construction, it is easy to maintenance.
Simultaneously by setting liquid level gauge 7 to realize the real-time monitoring to liquid level in casing 1, and it is automatic to increase pressure, liquid level
Warning function, prevent that liquid level is too high or too low in casing 1, so as to improve the safety in operation of vehicle.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
What combined in an appropriate manner in one or more embodiments or example.In addition, those skilled in the art can say this
Different embodiments or example described in bright book are engaged and combined.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (7)
- A kind of 1. expansion tank, it is characterised in that including：Casing；Expanded film, the expanded film are arranged in the casing and the box house are isolated into expanding chamber and air chamber；Aeration valve and water compensating valve, the aeration valve are arranged on the casing and are connected with the air chamber, and the water compensating valve is set It is connected on the casing and with the expanding chamber；The expanded film includes：Expansion membrane body and the annular perisporium for being arranged on the expanded film body peripheral edge, the end of the annular perisporium and institute The inner peripheral surface for stating casing is fixed；The annular perisporium is annular perisporium that is extensible and shrinking；The annular perisporium has pleated structure；Wherein described annular perisporium upwardly extends from the expanded film body peripheral edge.
- 2. expansion tank according to claim 1, it is characterised in that the expansion membrane body is flat-bottom structure.
- 3. expansion tank according to claim 1, it is characterised in that be additionally provided with the casing and the expanding chamber phase Liquid level gauge even.
- 4. expansion tank according to claim 3, it is characterised in that the liquid level gauge includes：Liquid level gauge body and observation window, the liquid level gauge body are arranged on the casing, the observation window and the liquid level gauge Limit vertical passageway between body, the bottom of the vertical passageway by be opened in the communicating passage on the casing with it is described Expanding chamber is connected.
- 5. expansion tank according to claim 4, it is characterised in that the liquid level gauge body is formed on the case On the outer surface of body.
- 6. expansion tank according to claim 1, it is characterised in that be additionally provided with the casing and the expanding chamber phase High level sensor and low liquid level sensor even.
- 7. expansion tank according to claim 1, it is characterised in that the water compensating valve is unidirectional water compensating valve, the tonifying Qi Valve is one-way gas-compensating valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611250100.5A CN106812593B (en) | 2016-12-29 | 2016-12-29 | Expansion tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611250100.5A CN106812593B (en) | 2016-12-29 | 2016-12-29 | Expansion tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106812593A CN106812593A (en) | 2017-06-09 |
| CN106812593B true CN106812593B (en) | 2017-12-12 |
Family
ID=59109565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611250100.5A Active CN106812593B (en) | 2016-12-29 | 2016-12-29 | Expansion tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106812593B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108397275A (en) * | 2018-04-19 | 2018-08-14 | 精进电动科技股份有限公司 | A kind of gradient type car expansion tank |
| CN109184893B (en) | 2018-11-22 | 2021-02-09 | 卡特彼勒S.A.R.L公司 | Engine cooling system, case used therein and working machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210945U (en) * | 1986-12-27 | 1987-10-31 | 肖超 | Automatic pressure regulator by means of expansion device for water heating system |
| RU2031217C1 (en) * | 1991-05-05 | 1995-03-20 | Безюков Олег Константинович | Expansion tank for liquid cooling system of internal combustion engine |
| CN2402944Y (en) * | 1999-09-17 | 2000-10-25 | 成都发动机（集团）有限公司 | Expansion water tank |
| FR2884970B1 (en) * | 2005-04-26 | 2007-08-24 | Renault Sas | EXPANSION AND DEGASSING VESSEL FOR COOLANT CIRCUIT, AND ASSOCIATED METHOD |
| CN102297010A (en) * | 2011-07-21 | 2011-12-28 | 三一重型综采成套装备有限公司 | Expansion tank |
| CN204984579U (en) * | 2015-07-29 | 2016-01-20 | 宁波春华汽配有限公司 | Expansion tank for automobile |
-
2016
- 2016-12-29 CN CN201611250100.5A patent/CN106812593B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86210945U (en) * | 1986-12-27 | 1987-10-31 | 肖超 | Automatic pressure regulator by means of expansion device for water heating system |
| RU2031217C1 (en) * | 1991-05-05 | 1995-03-20 | Безюков Олег Константинович | Expansion tank for liquid cooling system of internal combustion engine |
| CN2402944Y (en) * | 1999-09-17 | 2000-10-25 | 成都发动机（集团）有限公司 | Expansion water tank |
| FR2884970B1 (en) * | 2005-04-26 | 2007-08-24 | Renault Sas | EXPANSION AND DEGASSING VESSEL FOR COOLANT CIRCUIT, AND ASSOCIATED METHOD |
| CN102297010A (en) * | 2011-07-21 | 2011-12-28 | 三一重型综采成套装备有限公司 | Expansion tank |
| CN204984579U (en) * | 2015-07-29 | 2016-01-20 | 宁波春华汽配有限公司 | Expansion tank for automobile |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106812593A (en) | 2017-06-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106812593B (en) | Expansion tank | |
| CN206175650U (en) | Take gasbag formula overhead tank of piston | |
| CN106812592A (en) | Expansion tank | |
| CN209097318U (en) | A kind of Household vacuum rice storage bucket | |
| CN204200346U (en) | Automatic mechanical pressure-stabilizing expansion water tank cover | |
| CN201391741Y (en) | Temperature-adjusting and pressure-regulating liquefied natural gas filling tank | |
| CN108565134A (en) | A kind of flat machine of capacitance embedding shake | |
| US8397681B2 (en) | Expansion tank for vehicle cooling system | |
| CN109799849A (en) | Inflatable material voltage-stabilizing system and inflatable material method for stabilizing voltage | |
| CN211113900U (en) | Water supplementing linkage constant-pressure water supplementing and exhausting device | |
| CN209053679U (en) | A kind of expansion water tank for automobile | |
| JP2010013174A (en) | Sealing pot structure of tank exhaust | |
| CN211571856U (en) | Constant-pressure water supplementing and exhausting device for initial water supplementing | |
| CN211344423U (en) | Pressure tank and pipeline hydraulic buffer device | |
| CN206267239U (en) | A kind of air pressure tank for improving security performance | |
| CN208206235U (en) | A kind of numerical control adjusts the Marriot bottle of water level | |
| CN215537593U (en) | Breathing machine humidifier | |
| CN221324150U (en) | Liquefied natural gas explosion-proof tank | |
| CN208049087U (en) | A kind of drainage system fo r neurosurgical operation | |
| CN204175680U (en) | Liquid constant pressure source instrumentation | |
| CN204310225U (en) | Telescopic water bag assembly and water purifying equipment with same | |
| CN219468089U (en) | Constant pressure filling system | |
| CN217655994U (en) | Liquid thermostat | |
| CN215112836U (en) | Heating equipment, pressure stabilizer and expansion tank | |
| CN217816186U (en) | Full-automatic liquid nitrogen of high accuracy adds device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |