CN206954953U - A kind of negative pressure preventer - Google Patents
A kind of negative pressure preventer Download PDFInfo
- Publication number
- CN206954953U CN206954953U CN201720293306.XU CN201720293306U CN206954953U CN 206954953 U CN206954953 U CN 206954953U CN 201720293306 U CN201720293306 U CN 201720293306U CN 206954953 U CN206954953 U CN 206954953U
- Authority
- CN
- China
- Prior art keywords
- negative pressure
- tank
- storage container
- prevents
- pressure
- 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.)
- Withdrawn - After Issue
Links
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 238000009423 ventilation Methods 0.000 claims abstract description 19
- 238000001035 drying Methods 0.000 claims abstract description 6
- 230000029058 respiratory gaseous exchange Effects 0.000 claims abstract description 5
- 238000004891 communication Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 210000004072 lung Anatomy 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 239000013589 supplement Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Landscapes
- Loading And Unloading Of Fuel Tanks Or Ships (AREA)
Abstract
The utility model provides a kind of negative pressure preventer, and the negative pressure preventer includes：The breathing that drying compressed air passes through is fixedly connected on to fill upper and prevent tank by the negative pressure of the inlet end of breather line and storage container connection, being arranged on the negative pressure prevents two liquid level mounting holes up and down on pot sidewall, and being arranged on the negative pressure prevents from tank inner upper end and stretch out the negative pressure preventing negative pressure ventilation pipe outside tank；The negative pressure prevents from being contained with liquid in tank, and when the pressure in the breather line is negative pressure, the lower surface of the negative pressure ventilation pipe is located at the ullage of the liquid.The beneficial effects of the utility model are：Prevent tank from can effectively adjust the system pressure of storage container by the negative pressure of setting, ensure that storage container pressure when transferring medium is normal, make the storage container normal operation.
Description
Technical field
The pressure techniques field of prevention sealed storage container is the utility model is related to, more particularly to a kind of negative pressure prevents
Device.
Background technology
Malleation just refers to the gaseous state higher than the gas pressure of normal pressure (one atmospheric pressure of namely what is often called).For example, to certainly
It is exactly malleation caused by the outlet side of inflator or inflating pump when driving or automobile tire are inflated.Generally industrially, particularly
(such as booster pump, micro air pump, miniature pumping inflating pump, minitype gas circulating pump, Miniature inflating pump are miniature to fill for micropump
Air pump etc.) to be often related to this concept in type selecting.
Negative pressure is less than the gas pressure state of normal pressure (one atmospheric pressure of namely what is often called), and the utilization of negative pressure is very universal,
People usually make certain segment space negative pressure state occur, just can utilize ubiquitous atmospheric pressure for our effect.Pull-out type leads to
In the mine of wind, distinguished and admirable absolute pressure is less than outside well or the outer absolute pressure with absolute altitude of air duct, and its relative pressure is negative value, is claimed
Negative pressure.Generally industrially, particularly micropump is (such as:Minipump, micro air pump, minitype gas sampling pump, minitype gas
Circulating pump, micro-suction pump) to be often related to this concept in type selecting.The utilization of negative pressure is very universal, and people usually make certain portion
There is negative pressure state in point space, just can utilize ubiquitous atmospheric pressure for our effect.For example, when people breathe, at lung
There is negative pressure when expansion state, pressure difference fresh air is formd inside and outside lung and is just pressed into intrapulmonary.Generally industrially,
Particularly micropump, such as minipump, micro air pump, minitype gas sampling pump, minitype gas circulating pump, micro-suction pump,
Often to be related to this concept in type selecting.
Sealed storage container is totally enclosed a kind of special container for storing certain medium, body in sealed storage container
Product will not change.But when conveying the gas of certain pressure, often result in closed storage container pressure is excessive or mistake
Small, here it is the malleation and negative pressure that we frequently refer to.At present, existing closed storage container does not have pressure to prevent tank, often
Cause closed storage container negative pressure too low and the too high situation of malleation.
Utility model content
The purpose of this utility model is to provide a kind of negative pressure preventer, asked with solve to propose in above-mentioned background technology
Topic.
The utility model is to be achieved through the following technical solutions：
The utility model provides a kind of negative pressure preventer, and the negative pressure preventer includes：It is fixedly connected on and dries compression sky
The breathing that gas passes through, which fills negative pressure that is upper and being connected by the inlet end of breather line and storage container, prevents tank, is arranged on described negative
Pressure prevents two liquid level mounting holes up and down on pot sidewall, and being arranged on the negative pressure prevents tank inner upper end and stretch out the negative pressure
Prevent the negative pressure ventilation pipe outside tank；The negative pressure prevents from being contained with liquid in tank, and the pressure in the breather line is negative
During pressure, the lower surface of the negative pressure ventilation pipe is located at the ullage of the liquid.
Further, the negative pressure prevents tank to be fixedly connected by upper and lower two liquid communication pipelines with the breather tank.
Further, the negative pressure ventilation pipe, which stretches out the negative pressure, prevents that the part outside tank from being arc fold bending structure.
Compared with prior art, the beneficial effects of the utility model are：Prevent tank from can effectively adjust by the negative pressure of setting
The system pressure of storage container is saved, ensures that storage container pressure when transferring medium is normal, makes the storage container normal
Operation.
Brief description of the drawings
Fig. 1 is the structural representation for the negative pressure preventer that the utility model embodiment provides；
Fig. 2 is the structural representation of the installation site for the negative pressure preventer that the utility model embodiment provides.
In figure：1. negative pressure prevents the negative pressure ventilation pipe of 2. liquid level mounting hole of tank 3..
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Fig. 1 and Fig. 2 are referred to, Fig. 1 is the structural representation for the negative pressure preventer that the utility model embodiment provides；Fig. 2
It is the structural representation of the installation site for the negative pressure preventer that the utility model embodiment provides.
The utility model embodiment provides a kind of negative pressure preventer, and the negative pressure preventer includes：It is fixedly connected on drying
The breathing that compressed air passes through, which fills negative pressure that is upper and being connected by the inlet end of breather line and storage container, prevents tank 1, sets
Two liquid level mounting holes 2 up and down in the side wall of tank 1 are prevented in the negative pressure, being arranged on the negative pressure prevents the inner upper end of tank 1 simultaneously
Stretching out the negative pressure prevents negative pressure ventilation pipe 3 outside tank 1；The negative pressure prevents from being contained with liquid in tank 1, and in the breather pipe
When pressure in road is negative pressure, the lower surface of the negative pressure ventilation pipe 3 is located at the ullage of the liquid.
In the above-described embodiments, prevent tank 1 from can effectively adjust the system pressure of storage container by the negative pressure of setting, protect
It is normal to demonstrate,prove storage container pressure when transferring medium, makes the storage container normal operation.
In order to facilitate the negative pressure preventer for understanding that the utility model embodiment provides, with reference to specific embodiment to it
It is described in detail.
With continued reference to Fig. 1 and Fig. 2, the negative pressure preventer, which includes a negative pressure, prevents tank 1, and the negative pressure prevents tank 1 from passing through
Upper and lower two liquid communication pipelines are fixedly connected on the breathing that drying compressed air passes through and filled, and pass through breather line and storage
The inlet end connection of container, prevent from being provided with two liquid level mounting holes 2 up and down in the side wall of tank 1 in the negative pressure, in the negative pressure
Prevent the inner upper end of tank 1 is provided with from stretching out the negative pressure and prevent negative pressure ventilation pipe 3 outside tank 1；The negative pressure prevents from holding in tank 1
There is liquid, and when the pressure in the breather line is negative pressure, the lower surface of the negative pressure ventilation pipe 3 is located at the liquid
Ullage.
When it is implemented, during the medium transfer of the storage container, by setting the drying compressed air of pressure to described
Storage container make-up gas, the gas enter in the storage container by the expiration tank.In the breather line
When air pressure supplement deficiency is negative pressure, being arranged on the negative pressure prevents the liquid in the negative pressure ventilation pipe 3 in tank 1 from flowing out, and passes through
The liquid communication pipeline is flowed into the expiration tank, and now, the lower surface of the negative pressure ventilation pipe 3 is located at the liquid of the liquid
Above face, ambient atmos are prevented in tank 1 by the negative pressure ventilation pipe 3 into the negative pressure, and by the breather line to
The storage container conveys gas, ensures that storage container pressure when transferring medium is normal, makes the storage container normal
Operation.
By foregoing description as can be seen that the negative pressure preventer that the present embodiment provides prevents that tank 1 can by the negative pressure of setting
Effectively to adjust the system pressure of storage container, ensure that storage container pressure when transferring medium is normal, make the storage
Container normal operation.
Operation principle：During the medium transfer of storage container, the storage is held by the drying compressed air for setting pressure
Device make-up gas, the gas enter in the storage container by expiration tank.Tank is prevented by the negative pressure of setting, in breather pipe
When air pressure supplement deficiency in road is negative pressure, being arranged on the negative pressure prevents the liquid in the negative pressure ventilation pipe in tank from flowing out, and
Flowed into by liquid communication pipeline in expiration tank, now, the lower surface of the negative pressure ventilation pipe is located on the liquid level of the liquid
Side, ambient atmos enter the negative pressure by the negative pressure ventilation pipe prevents tank, and by the breather line to the storage
Container transport gas, ensure that storage container pressure when transferring medium is normal, make the storage container normal operation.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from principle of the present utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (3)
- A kind of 1. negative pressure preventer, it is characterised in that including：The breathing that drying compressed air passes through is fixedly connected on to fill upper and lead to Crossing the negative pressure of the inlet end connection of breather line and storage container prevents tank (1), and being arranged on the negative pressure prevents in tank (1) side wall Two liquid level mounting holes (2) up and down, being arranged on the negative pressure prevents from tank (1) inner upper end and stretches out the negative pressure preventing tank (1) negative pressure ventilation pipe (3) outside；The negative pressure prevents from being contained with liquid in tank (1), and the pressure in the breather line is During negative pressure, the lower surface of the negative pressure ventilation pipe (3) is located at the ullage of the liquid.
- 2. negative pressure preventer according to claim 1, it is characterised in that the negative pressure prevents tank (1) by upper and lower two Liquid communication pipeline is fixedly connected with the breather tank.
- 3. negative pressure preventer according to claim 1, it is characterised in that the negative pressure ventilation pipe (3) stretches out the negative pressure It is arc fold bending structure to prevent the part of tank (1) outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720293306.XU CN206954953U (en) | 2017-03-24 | 2017-03-24 | A kind of negative pressure preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720293306.XU CN206954953U (en) | 2017-03-24 | 2017-03-24 | A kind of negative pressure preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206954953U true CN206954953U (en) | 2018-02-02 |
Family
ID=61377313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720293306.XU Withdrawn - After Issue CN206954953U (en) | 2017-03-24 | 2017-03-24 | A kind of negative pressure preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206954953U (en) |
-
2017
- 2017-03-24 CN CN201720293306.XU patent/CN206954953U/en not_active Withdrawn - After Issue
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180314 Address after: 344000 Jiangxi Province, Fuzhou city Linchuan District rattan town Teng Bridge Street Lin Road 01 Patentee after: Zhang Xin Address before: The Yellow Mountain Yonghe Economic Zone 511356 Guangdong city of Guangzhou province Guangzhou City Economic and Technological Development Zone No. 18 Patentee before: Guangzhou Bridgestone chemical products Co., Ltd. |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180202 Effective date of abandoning: 20180907 |