CN206809575U - Foam producer and its circulation seal structure - Google Patents
Foam producer and its circulation seal structure Download PDFInfo
- Publication number
- CN206809575U CN206809575U CN201720594574.5U CN201720594574U CN206809575U CN 206809575 U CN206809575 U CN 206809575U CN 201720594574 U CN201720594574 U CN 201720594574U CN 206809575 U CN206809575 U CN 206809575U
- Authority
- CN
- China
- Prior art keywords
- foam
- seal
- feed tube
- spring
- seal receptacle
- 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
Landscapes
- Sealing Material Composition (AREA)
Abstract
It the utility model is related to a kind of foam producer for fire-fighting and its circulation seal structure.For circulation seal structure setting between the foam room cover plate and feed tube of foam producer, the port of export of feed tube is provided with spring, seal receptacle is pressed on feed tube by spring makes its sealing covered with seal receptacle between seal receptacle and foam room cover plate；When the pressure of mixed liquor in feed tube reaches design pressure, seal receptacle overcomes the pressure of spring and is open, and when the pressure of mixed liquor in feed tube is less than design pressure, seal receptacle covers feed tube again in the active force of spring.The utility model uses the circulation seal sealing structure being made up of spring and seal receptacle, and simple in construction, install convenient, stable performance, seal receptacle opening pressure is accurate, good seal performance；Circulation seal structure has auto-reset function, and maintaining is more convenient, reduces the cost of maintaining.
Description
Technical field
It the utility model is related to suitable for oil, the fire-fighting foams extinguishing device of Petrochemical, specifically a kind of bubble
Foam generator and its circulation seal structure.
Background technology
Foam producer is that one kind is fixedly mounted on oil tank, foam mixing liquid is mixed with the air sucked, foaming production
Raw foam, and the liquid surface by foam jet to burning, the device finally to stamp out a fire.Foam producer is mainly by air
Suction line, feed tube, foam chamber, foam room cover plate, foam outlet pipe, seal assembly and raffinate exhaust-valve composition.Wherein, seal
The performance of component is one of major parameter for detecting foam producer service behaviour.
Traditional foam producer, its seal assembly is using seal glass component.As shown in Fig. 2 seal glass group
Part is made up of seal glass 11, seal glass seat 12, glass trim ring 13, sealing gasket 14, sealing ring 15 and wing bolt 16.Its
In, seal glass 11 is critical component, the glass groove that the performance of seal glass 11 is depended primarily on seal glass surface, band
The seal glass performance for having groove has to comply with：1st, under malleation 0.03MPa, negative pressure 0.01MPa air pressure, gas leakage must not shows
As；2nd, should be able to be crushed under 0.10MPa~0.30MPa hydraulic pressure, and the annular section remained should be consistent with tubing internal diameter, must not
There is the nib of residual.
Foam producer can prevent the volatile media in oil tank from being leaked into by seal assembly outer under conventional sense
Boundary；During work, when foam mixing liquid operating pressure reaches the design pressure of seal glass, break through seal glass and enter foam chamber
Foaming；After end-of-job, foam room cover plate is opened, changes broken seal glass, while the glass cleaned out in foam chamber
Fragment, foam producer is allowed to be in conventional sense again.
Existing seal glass component has the disadvantages that：
1st, the very bad control of the precision of seal glass groove dynamics and depth, groove great efforts seal glass are fragile
Split, the improper service behaviour that cannot be guaranteed seal glass of groove depth, therefore design performance is arrived into the control of seal glass groove
It is required that it is extremely difficult.
2nd, the seal glass after groove is more frangible.In foam producer transport and installation process, often occur close
Seal the phenomenon of glass breaking, such seal glass component just loses working effect, whole foam producer before work just
Working condition is treated through being not located at.
3rd, trial operation before foam producer comes into operation and the work after coming into operation, each foam producer work
Afterwards, it is necessary to change broken seal glass, while the glass fragment that also clean out in foam chamber in time.Change broken glass
During glass, foam room cover plate is first opened, then to open seal glass component, operation is very cumbersome.And it is installed on oil tank
Foam producer afterwards, then the replacing of seal glass is carried out, and an extremely difficult thing.
The content of the invention
The utility model is difficult to ensure that service behaviour for existing foam producer seal glass component and changed tired
The problem of difficult, there is provided a kind of foam producer and its circulation seal structure, without changing, the foam produces the circulation seal structure
Device stable performance.
The technical scheme of circulation seal structure in the utility model is：A kind of circulation seal structure of foam producer,
Be arranged between foam room cover plate and feed tube, the port of export of the feed tube covered with seal receptacle, the seal receptacle with it is described
Spring is installed, the seal receptacle is pressed on the feed tube by the spring makes its sealing between foam room cover plate；Work as institute
When stating the pressure of mixed liquor in feed tube and reaching design pressure, the seal receptacle overcomes the pressure of the spring and is open, when
When the pressure of mixed liquor is less than design pressure in the feed tube, the seal receptacle covers institute again in the active force of the spring
State feed tube.
Further, it is inlaid with sealing gasket on the seal receptacle sealing surface relative with the feed tube.
Further, seal bar is provided with the seal receptacle, is provided with the foam room cover plate and the seal bar
The pilot hole being engaged, the seal bar are slidingly sealed cooperation with the pilot hole.
Further, with being respectively arranged with spring base on the foam room cover plate, the spring is arranged on the seal receptacle
On the spring base.
The technical scheme of foam producer in the utility model is：A kind of foam using above-mentioned circulation seal structure produces
Raw device, including foam chamber and the foam room cover plate that is sealedly connected in the foam chamber, feed tube is connected with the foam chamber
With foam outlet pipe, the entrance point of the feed tube is connected with air intake pipe, it is characterized in that：The port of export of the feed tube hangs down
Directly it is directed to the foam room cover plate.
Further, the foam outlet pipe is perpendicular to the feed tube.
Further, raffinate exhaust-valve is provided with the bottom wall of the foam chamber.
It is of the present utility model to have technical effect that：
1st, being sealed using spring and seal receptacle, simple in construction, install convenient, stable performance, seal receptacle opening pressure is accurate,
Good seal performance；With auto-reset function, maintaining is more convenient, reduces the cost of maintaining.
2nd, the design of seal bar and pilot hole is more stable in the guide effect bottom sealing socket operation of pilot hole.
3rd, the spring base set on seal receptacle and foam room cover plate, it ensure that spring performance is more stable.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of existing seal glass component.
In Fig. 1, Fig. 2, including air intake pipe 1, feed tube 2, foam chamber 3, sealing gasket 4, seal receptacle 5, spring 6, foam
Room cover plate 7, foam outlet pipe 8, raffinate exhaust-valve 9, seal glass 11, seal glass seat 12, glass trim ring 13, sealing gasket 14,
Sealing ring 15, wing bolt 16.
Embodiment
Specific embodiment of the present utility model is further described below in conjunction with the accompanying drawings.
As shown in figure 1, be a kind of foam producer, including foam chamber 3 and foam room cover plate 7, the sealing of foam room cover plate 7 connect
It is connected in foam chamber 3.
Feed tube 2 and foam outlet pipe 8 are connected with foam chamber 3.The entrance point of feed tube 2 is connected with air intake pipe 1,
The port of export of feed tube 2 is perpendicularly oriented in foam room cover plate 7.Foam outlet pipe 8 is perpendicular to feed tube 2.
Raffinate exhaust-valve 9 is provided with the bottom wall of foam chamber 3, for emptying the raffinate in foam chamber 3.
In the utility model, the seal assembly of foam producer uses a kind of new circulation seal structure.The circulation is close
Seal structure is arranged between foam room cover plate 7 and feed tube 2, including seal receptacle 5 and spring 6.The port of export of feed tube 2 covered with
Seal receptacle 5, spring 6 is installed, seal receptacle 5 is pressed on feed tube 2 by spring 6 makes it between seal receptacle 5 and foam room cover plate 7
Sealing.
The pressure of spring 6 is equal with the design pressure of mixed liquor in feed tube 2.When the pressure of mixed liquor in feed tube 2 reaches
During to design pressure, seal receptacle 5 overcomes the pressure of spring 6 and is open, when the pressure of mixed liquor in feed tube 2 is pressed less than design
During power, seal receptacle 5 covers feed tube 2 again in the active force of spring 6.
In order to preferably seal, sealing gasket 4 is inlaid with the sealing surface relative with feed tube 2 of seal receptacle 5.In spring 6
Pressure effect under, the end face of sealing gasket 4 contacts with the sealing surface of feed tube 2, can guarantee that sealing property is more superior.
More stablize in order that seal receptacle 5 is run, seal bar is provided with seal receptacle 5, is set on foam room cover plate 7
There is the pilot hole being engaged with seal bar, seal bar passes through pilot hole, under the guide effect of pilot hole, seal bar and pilot hole
It is slidingly sealed cooperation.
In order to ensure that spring performance is more stable, spring base is respectively arranged with seal receptacle 5 and foam room cover plate 7, is installed
When spring 6 is mounted elastically.
In the utility model, the operation principle and the course of work of circulation seal structure are as follows：During normal condition, spring 6 pushes up
Firmly seal receptacle 5, the sealing gasket 4 and the sealing surface of feed tube 2 for making seal receptacle 5 are fully sealed, and can prevent internal gas from leaking into the external world；
During work when operating pressure reaches design pressure, seal receptacle 5 is opened, and mixed liquor enters foam chamber 3；After end-of-job, sealing
Seat 5 is restored to normal condition under the pressure with spring 6 of conducting oneself with dignity.
In the utility model, the operation principle and the course of work of foam producer are as follows：During work, foam solution with from air
The air mixing that suction line 1 sucks, into feed tube 2, when mixed liquor pressure reaches design pressure, seal receptacle 5 is opened, is entered
Foam chamber 3 foams.After abundant foaming, enter oil tank from foam outlet pipe 8.After end-of-job, the pressure of feed tube 2 is less than design
During pressure, seal receptacle 5 makes the end face of sealing gasket 4 be sealed with the sealing surface of feed tube 2, opened simultaneously again under the active force of spring 6
Raffinate exhaust-valve 9, empty the foam solution of the internal residual of foam chamber 3.
The utility model replaces existing seal glass component using circulation seal structure, has advantages below：
1st, sealed by spring and seal receptacle, under the force of a spring, the opening pressure of seal receptacle can be ensured very
Accurately；The active force of spring and the Joint effect of sealing gasket, can guarantee that sealing property is more perfect.Do not use seal glass,
Structure is more stable, performance is more superior, and transport and installation are safer.
2nd, circulation seal structure has auto-reset function, it is no longer necessary to manually opens foam chamber and seal glass group
Part carries out the replacing of seal glass, thoroughly solves the maintaining problem after coming into operation.After coming into operation, maintaining is more
Add the cost for conveniently, greatly reducing maintaining.
3rd, the structure of simplifying of circulation seal structure make it that installation is more convenient, and performance is more stable.
Finally it should be noted that：The preferred embodiment of the utility model patent is the foregoing is only, is not used to limit
The utility model processed, although the utility model is described in detail with reference to the foregoing embodiments, for the technology of this area
For personnel, it can still modify to the technical scheme described in foregoing embodiments, or to which part technology
Feature carries out equivalent substitution, all within the spirit and principles of the utility model, any modification, equivalent substitution and improvements made
Deng should be included within the scope of protection of the utility model.
Claims (7)
1. a kind of circulation seal structure of foam producer, it is arranged between foam room cover plate (7) and feed tube (2), its feature
It is：The port of export of the feed tube (2) is covered with seal receptacle (5), between the seal receptacle (5) and the foam room cover plate (7)
Spring (6) is installed, the seal receptacle (5) is pressed on the feed tube (2) by the spring (6) makes its sealing；When described
When the pressure of feed tube (2) interior mixed liquor reaches design pressure, the seal receptacle (5) overcomes the pressure and quilt of the spring (6)
Push open, when the pressure of the feed tube (2) interior mixed liquor is less than design pressure, the seal receptacle (5) is in the spring (6)
Active force covers the feed tube (2) again.
2. according to the circulation seal structure of the foam producer described in claim 1, it is characterized in that：The seal receptacle (5) and institute
State and be inlaid with sealing gasket (4) on the relative sealing surface of feed tube (2).
3. according to the circulation seal structure of the foam producer described in claim 1, it is characterized in that：Set on the seal receptacle (5)
Seal bar is equipped with, the pilot hole being engaged with the seal bar, the seal bar and institute are provided with the foam room cover plate (7)
State pilot hole and be slidingly sealed cooperation.
4. according to the circulation seal structure of the foam producer described in claim 1, it is characterized in that：The seal receptacle (5) and institute
State and spring base is respectively arranged with foam room cover plate (7), the spring (6) is arranged on the spring base.
5. a kind of foam producer of circulation seal structure using described in claim 1, including foam chamber (3) and sealed connection
Foam room cover plate (7) on the foam chamber (3), feed tube (2) and foam outlet pipe are connected with the foam chamber (3)
(8), the entrance point of the feed tube (2) is connected with air intake pipe (1), it is characterized in that：The port of export of the feed tube (2) hangs down
Directly it is directed to the foam room cover plate (7).
6. according to the foam producer described in claim 5, it is characterized in that：The foam outlet pipe (8) is perpendicular to the feed liquor
Manage (2).
7. according to the foam producer described in claim 5, it is characterized in that：Raffinate is provided with the bottom wall of the foam chamber (3)
Exhaust-valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594574.5U CN206809575U (en) | 2017-05-25 | 2017-05-25 | Foam producer and its circulation seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720594574.5U CN206809575U (en) | 2017-05-25 | 2017-05-25 | Foam producer and its circulation seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206809575U true CN206809575U (en) | 2017-12-29 |
Family
ID=60757258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720594574.5U Active CN206809575U (en) | 2017-05-25 | 2017-05-25 | Foam producer and its circulation seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206809575U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539984A (en) * | 2019-09-17 | 2019-12-06 | 华陆工程科技有限责任公司 | Internal floating roof storage tank sampling device |
| CN113134200A (en) * | 2020-01-20 | 2021-07-20 | 南京南瑞继保电气有限公司 | Net type fine diffuser special for air foam fire extinguishing equipment |
-
2017
- 2017-05-25 CN CN201720594574.5U patent/CN206809575U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110539984A (en) * | 2019-09-17 | 2019-12-06 | 华陆工程科技有限责任公司 | Internal floating roof storage tank sampling device |
| CN113134200A (en) * | 2020-01-20 | 2021-07-20 | 南京南瑞继保电气有限公司 | Net type fine diffuser special for air foam fire extinguishing equipment |
| CN113134200B (en) * | 2020-01-20 | 2022-05-17 | 南京南瑞继保电气有限公司 | Net type fine diffuser special for air foam fire extinguishing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206809575U (en) | Foam producer and its circulation seal structure | |
| CN104494836A (en) | Small aircraft fuel tank draining valve switch | |
| CN201982726U (en) | Self-plugging multi-air source reducing valve | |
| CN112727431A (en) | Multifunctional production well wellhead device for underground coal gasification | |
| CN103939619A (en) | Modular differential-pressure bottle valve | |
| CN204250377U (en) | A kind of supercharging self-packer | |
| CN104880307A (en) | Packer performance detection device | |
| CN219120052U (en) | Self-sealing quick-filling joint assembly | |
| CN205877375U (en) | Fluid level control water -saving valve | |
| CN107520802B (en) | A kind of vacuum tube O-ring more changing device and replacing options | |
| CN105546115B (en) | Self-adjusting sealed letter | |
| CN201715176U (en) | Inner end plug capable of plugging tube | |
| CN206924562U (en) | Quick-opening blind flange filter | |
| CN209198475U (en) | A kind of test agent production automatic biochemical analytical equipment | |
| CN112081925B (en) | Sealing method for pre-ash barrel | |
| CN204153167U (en) | A kind of rock gas control valve blowdown pressure release mouth | |
| CN214334866U (en) | Sampling device for detecting purity of natural gas | |
| CN203335944U (en) | Modular differential pressure bottle valve | |
| CN205778584U (en) | A kind of NEW TYPE OF COMPOSITE Breakdown acidizing pipe nipple | |
| CN207500620U (en) | Micro-fluidic chip with Locking type valve | |
| CN210134846U (en) | Operation well tail gas control device | |
| CN206624188U (en) | A kind of cigarette machine glue bucket sealing device | |
| CN220687458U (en) | Two-channel balance structure of carburetor | |
| CN101474461A (en) | Self-extinguishing device for automobile | |
| CN105333216A (en) | Pneumatic starting valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |