CN200940718Y - Steam safety valve with meter - Google Patents
Steam safety valve with meter Download PDFInfo
- Publication number
- CN200940718Y CN200940718Y CN 200620106950 CN200620106950U CN200940718Y CN 200940718 Y CN200940718 Y CN 200940718Y CN 200620106950 CN200620106950 CN 200620106950 CN 200620106950 U CN200620106950 U CN 200620106950U CN 200940718 Y CN200940718 Y CN 200940718Y
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- valve
- pressure
- push rod
- steam
- clutch
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- Expired - Fee Related
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Abstract
The utility model relates to a steam safety valve of the pressure vessel, the utility model includes a valve shell; a draining pressure mechanism composed of a valve body, a draining pressure valve core in the valve body, a draining pressure spring, a push rod, a push rod seal ring, a draining pressure valve core seal ring, which is arranged in the lower part intracavity of the valve shell; an using security assurance mechanism including a clutch synchronization rotated and coaxially moving up and down with the valve shell, which is at the top of the draining pressure mechanism; a draining pressure governing mechanism composed of a draining pressure regulator, a draining pressure spring, which is at the top of the draining pressure mechanism; a valve operculum; the top of the valve shell is provided with a steam pressure display device. The pressure display device includes an elastic pad, a vapor pressure meter on the elastic pad, a center channel through the push rod seal ring, the push rod, the clutch and the separator and provided with a mesopore providing vapor pressure for the vapor pressure meter, a clip ring playing a fixation effect. The utility model steam safety valve is provided with a vapor pressure meter therein to observe and master the vapor pressure in the closed vessel conveniently and visually. Especially the problem that hard to install the vapor pressure meter is solved in the situation of lower closed vessel volume.
Description
Technical field
The utility model relates to a kind of steam security valve of pressurized container, particularly the safety valve that is provided with on various family expenses or the specialty water filling hole with the steam raising plant of steam cleaner and some industrial steam electric iron or steam boiler
Background technique
With the steam raising plant of steam cleaner and some industrial steam electric iron or the water filling hole place of steam boiler a safety valve need be set at various family expenses or specialty, to play airtight and some automatic protective actions.Its effect of early stage steam security valve is to make the airtight and simple pressure release of pressurized container to guarantee pressure vessel safety work.But in operating process, when pressurized container need add water, when turning on safety valve, the accident that inexperienced operator are scalded happens occasionally.Therefore, people manage to be provided with support organization safe in utilization on safety valve, and these mechanisms can not back out to guarantee safety from pressurized container when making the pressure of steam security valve in pressurized container also be higher than normal pressure.Chinese patent, the patent No. is 03232669.6, the structure that name is called " a kind of steam security valve " patented technology is: " comprise valve casing and valve body; establishing the gentle pressure sensitivity of decompression protection device in the valve body should install; it is characterized in that described air pressure induction installation comprises clutch piece and piston rod, clutch piece is located at valve shell cavity, adopt rotation, Placement moving up and down synchronously; clutch piece intracavity section shape and valve body upper end sectional shape are complementary, and are regular polygon with valve casing; Piston-rod lower end tool annular flange flange, annular flange flange is located in the spool, and the piston rod shank portion is behind the center hole of look nut and spool, and the upper end is connected in the clutch piece center portion." this technological scheme is exactly that cover for sealed container recited above solves the pressure release safety protection simultaneously and adds the product that water security uses protection.But its defective is clutch piece top is not provided with the clutch piece Returnning spring, and this can not reset clutch piece sometimes, if clutch piece is not in place, opens or tightens steam security valve and will meet difficulty.For another example because vapour pressure promotes valve rod, when spool makes progress, pressure releasing valve core seal ring and spool rise simultaneously, in some pressure releasing valve core of packing into of pressure releasing valve core seal ring, the fabrication and processing trouble, need the mechanical stamping difficulty also bigger when assembling.In addition, some hand-held cleaning steam devices can't be settled steam gauge because of the reason that structure is provided with.So people expect a kind of steam security valve of rational in infrastructure and band table.
Summary of the invention
The purpose of the utility model is to remedy above-mentioned deficiency, discloses a kind of rational in infrastructurely to society, and is with manometric steam security valve.
The technical solution of the utility model is achieved in that
A kind of band table steam security valve comprises, at the valve casing of outermost surface as the operation handwheel; Be arranged in the lower lumen of valve casing, comprise that by bottom band joint, centre the valve body of leading steam vent, middle part band relief hole is arranged, the pressure releasing valve core in the valve body, pressure release spring, push rod, push rod seal circle, the decompression mechanism that pressure releasing valve core seal ring assembled group is synthetic; In the decompression mechanism upper end, comprise support organization safe in utilization with valve casing rotation synchronously and the coaxial clutch that moves up and down; On decompression mechanism top, comprise by the pressure release regulator pressure release controlling mechanism that the pressure release spring is formed; Valve body is fixed on covers for housing in the valve casing; It is characterized in that the upper baffle plate of valve casing is provided with the vapor pressure display unit; Clutch, push rod, push rod seal circle and dividing plate all are provided with mesopore.
The vapor pressure display unit on the top of described valve casing comprises, be arranged on the bullet pad in the inner chamber on valve casing top, be arranged on the steam gauge on valve casing top, the bullet pad, for the part in the inner chamber of valve casing top plays the snap ring of fixation, the mesopore that be located at the valve casing innermost layer, passes push rod seal circle, push rod, clutch and dividing plate provides the center steam passage of vapour pressure for steam gauge.The annular end face that described valve body and pressure releasing valve core are adjacent is provided with annular groove, and the pressure releasing valve core seal ring just is set on this groove.Described push rod seal circle is combined in the positive lower end of push rod, and the shape in its cross section is like " M " shape.Described clutch upper-end surface is provided with the clutch reset spring, and clutch reset spring upper end withstands under the valve casing dividing plate.Described valve body lower portion joint is provided with surplus vapour relief hole.
The utility model has the advantages that:
Be provided with steam gauge in the steam security valve and can observe the vapour pressure of grasping in the seal container easily and intuitively.Particularly some hand-held cleaning steam devices and some reasons that are provided with because of structure can't be installed a difficult problem that has solved the setting pressure table on the steam appliance of steam gauge.
When the boiler internal pressure rose to pressure release setting volume, safety valve can be opened pressure relief device automatically, drains the high pressure gas, guarantees steam raising plant or steam boiler work safety.
Add the water security support organization and can guarantee that steam raising plant or steam boiler add water security.
Be provided with a surplus vapour relief hole, can unscrew safety valve after the boiler internal pressure is near normal pressure, residual surplus vapour is discharged by surplus vapour relief hole in the container, thus the safety when further guaranteeing to operate.
Description of drawings
Fig. 1 is the utility model example structure exploded view;
Fig. 2 is the utility model example structure schematic representation;
Fig. 3 promotes the situation schematic representation of push rod jack-up clutch when vapour pressure for the utility model embodiment;
Fig. 4 drains the high pressure steam schematic representation for the utility model embodiment when vapour pressure promotes push rod jack-up spool.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.A kind of band table of the utility model embodiment steam security valve comprises: at the valve casing 5 of outermost surface as the operation handwheel; Be arranged in the lower lumen of valve casing, comprise that by bottom band joint, centre the valve body 14 of leading steam vent 19, middle part band relief hole 18 is arranged, the pressure releasing valve core 10 in the valve body, pressure release spring 9, push rod 11, push rod seal circle 12, the decompression mechanism that pressure releasing valve core seal ring 13 assembled group are synthetic; In the decompression mechanism upper end, comprise the support organization safe in utilization that is provided with clutch reset spring 6 with valve casing rotation synchronously and the coaxial clutch that moves up and down 7, clutch 7 upper-end surfaces; On decompression mechanism top, comprise by pressure release regulator 8 the pressure release controlling mechanism that pressure release spring 9 is formed; Valve body is fixed on covers for housing 17 in the valve casing; The upper baffle plate 51 of valve casing 5 is provided with the vapor pressure display unit; Clutch 7, clutch push rod 11, push rod seal circle 12 and dividing plate 51 all are provided with mesopore.
The vapor pressure display unit on the top of described valve casing 5 comprises, be arranged on the bullet pad 4 in the inner chamber on valve casing top, be arranged on the steam gauge 2 on valve casing top, the bullet pad 4, for the part in the inner chamber of valve casing top plays the snap ring 1 of fixation, be located at the valve casing innermost layer, pass push rod seal circle 12, the mesopore of push rod 11, clutch 7 and dividing plate 51 provides the center steam passage 3 of vapour pressure for steam gauge.Described valve body 14 and pressure releasing valve core 10 adjacent annular end faces are provided with annular groove 141, and pressure releasing valve core seal ring 13 just is set on this groove.Described push rod seal circle 12 is combined in the positive lower end of push rod 11, and the shape in its cross section is like " M " shape.Described valve body 14 bottom joints are provided with surplus vapour relief hole 20, packing ring 15, valve seals 16.
Working principle:
Safety valve is under the effect of boiler pressure during work, push rod seal circle 12, with push rod 11 on move, promote simultaneously to move on the clutch 7, make clutch 7 and valve body 14 break away from (Fig. 3).At this moment turn valve casing 5, valve body 14 can and then not rotate yet and just can not back out safety valve from boiler, stop high pressure steam and scald the human body accident.
Vapour pressure further rises in the boiler, push rod seal circle 12, push rod 11 move on further when rising to the pressure release setting value of safety valve, can drive on the pressure releasing valve core 10 simultaneously and move, high pressure steam in the pressure releasing valve core 10 and pressure releasing valve core seal ring 13 gaps (Fig. 4), boiler is by leading steam vent 19, relief hole 18 pressure releases.The size of pressure release value can realize by regulating pressure release regulator 8.Pressure release regulator 8 is assembled by screw thread with valve body 14.Between pressure release regulator 8 and pressure releasing valve core 10, be provided with a pressure release spring 9, promptly regulated the size of spring pressure, thereby the pressure balance point that has changed between spring pressure and the vapor pressure is that volume is set in pressure release by regulating pressure release regulator 8.
When boiler quits work, vapor pressure returns to normal pressure in the boiler, and push rod 11, push rod seal circle 12, pressure releasing valve core 10 move down under the effect of pressure release spring 9, and clutch 7 guarantees that under the promotion of Returnning spring 6 clutch 7 and valve body 14 mesh again.At this moment turn valve casing 5 can drive valve body 14 rotations by the effect of clutch 7, and surplus vapour residual in the container is discharged by surplus vapour relief hole 20, can take off safety valve from container safely.
The annular end face that the utility model valve body and pressure releasing valve core are adjacent is provided with annular groove 141, and pressure releasing valve core seal ring 13 is set on this groove, makes the pressure releasing valve core seal ring easy for installation, and makes pressure releasing valve core 10 processing simple and easy.Push rod seal circle 12 is combined in the positive lower end of push rod 11, and the shape in its cross section is like " M " shape, and it and center steam passage are close-fittings under the normal pressure, but with pressure releasing valve core be making of joining of pine with high-temperature silica gel.Under the effect of vapor pressure, the push rod seal circle outwards with the pressure releasing valve core direction, inwardly be subjected to vapour pressure simultaneously and push and reach highly close-fitting with center steam passage direction, play seal action.
During work, the steam in the seal container enters leads steam vent 19, imports steam gauge 2 along center steam passage 3, and steam gauge can reflect the pressure in the seal container at any time intuitively.Band table steam security valve is that the little seal container setting pressure watchband of volume has come convenience, and particularly some hand-held cleaning steam devices and some reasons that are provided with because of structure steam appliance that steam gauge can't be installed has solved the difficult problem of setting pressure table.
Claims (6)
1, a kind of band table steam security valve comprises, at the valve casing (5) of outermost surface as the operation handwheel; Be arranged in the lower lumen of valve casing, comprise by bottom band joint, centre the valve body (14) of leading steam vent (19), middle part band relief hole (18) is arranged, pressure releasing valve core (10) in the valve body, pressure release spring (9), push rod (11), push rod seal circle (12), the decompression mechanism that pressure releasing valve core seal ring (13) assembled group is synthetic; In the decompression mechanism upper end, comprise support organization safe in utilization with valve casing rotation synchronously and the coaxial clutch that moves up and down (7); On decompression mechanism top, comprise by pressure release regulator (8) the pressure release controlling mechanism that pressure release spring (9) is formed; Valve body is fixed on covers for housing (17) in the valve casing; It is characterized in that the upper baffle plate (51) of valve casing (5) is provided with the vapor pressure display unit; Clutch (7), push rod (11), push rod seal circle (12) and dividing plate (51) are equipped with mesopore.
2, band table steam security valve as claimed in claim 1, it is characterized in that, the vapor pressure display unit on the top of described valve casing (5) comprises, be arranged on the bullet pad (4) in the inner chamber on valve casing top, be arranged on the steam gauge (2) on valve casing top, the bullet pad (4), for the part in the inner chamber of valve casing top plays the snap ring (1) of fixation, be located at the valve casing innermost layer, pass push rod seal circle (12), the mesopore of push rod (11), clutch (7) and dividing plate (51) provides the center steam passage (3) of vapour pressure for steam gauge.
3, band table steam security valve as claimed in claim 1 is characterized in that, the annular end face that described valve body (14) is adjacent with pressure releasing valve core (10) is provided with annular groove (141), and pressure releasing valve core seal ring (13) just is set on this groove.
4, band table steam security valve as claimed in claim 1 or 2 is characterized in that, described push rod seal circle (12) is combined in the positive lower end of push rod (11), and the shape in its cross section is like " M " shape.
5, band table steam security valve as claimed in claim 1 or 2 is characterized in that, described clutch (7) upper-end surface is provided with clutch reset spring (6), and clutch reset spring upper end withstands under the valve casing dividing plate (51).
6, band table steam security valve as claimed in claim 1 is characterized in that, described valve body (14) bottom joint is provided with surplus vapour relief hole (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106950 CN200940718Y (en) | 2006-08-22 | 2006-08-22 | Steam safety valve with meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620106950 CN200940718Y (en) | 2006-08-22 | 2006-08-22 | Steam safety valve with meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200940718Y true CN200940718Y (en) | 2007-08-29 |
Family
ID=38746895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620106950 Expired - Fee Related CN200940718Y (en) | 2006-08-22 | 2006-08-22 | Steam safety valve with meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200940718Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526147B (en) * | 2008-03-07 | 2012-10-03 | 李冠军 | Pointer type safety valve |
| CN106837748A (en) * | 2017-03-31 | 2017-06-13 | 浙江鸿友压缩机制造有限公司 | It is accompanied with manometric knob pressure regulator valve and is fitted with the compressor of the pressure regulator valve |
-
2006
- 2006-08-22 CN CN 200620106950 patent/CN200940718Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101526147B (en) * | 2008-03-07 | 2012-10-03 | 李冠军 | Pointer type safety valve |
| CN106837748A (en) * | 2017-03-31 | 2017-06-13 | 浙江鸿友压缩机制造有限公司 | It is accompanied with manometric knob pressure regulator valve and is fitted with the compressor of the pressure regulator valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 Termination date: 20120822 |