CN207830658U - Alarm pressure safety valve - Google Patents
Alarm pressure safety valve Download PDFInfo
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- CN207830658U CN207830658U CN201820069369.1U CN201820069369U CN207830658U CN 207830658 U CN207830658 U CN 207830658U CN 201820069369 U CN201820069369 U CN 201820069369U CN 207830658 U CN207830658 U CN 207830658U
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- valve body
- safety valve
- pressure
- screw rod
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Abstract
The utility model discloses alarm pressure safety valves; belong to concrete mixing plant silo protection accessory technical field, including valve body, pedestal, upper cover, sealing plate, pressing plate, screw rod, adjusting nut, spring, gasket, flexible sheet, shrapnel, adjustment seat, adjusting screw and microswitch etc..The utility model can be before the inside of concrete mixing plant silo reaches vent pressure, can early warning first be carried out in advance to staff, staff is set to scent a hidden danger and timely processing ahead of time, and sending out signal by external controller makes dnockout stop, more dusty gas is avoided to be directly discharged to pollute environment in air, without there is a situation where only just find alert when staff has found to have dusty gas to discharge in air, after alarm is failed, it can also be normally carried out pressure release automatically, avoid hypertonia in storehouse that from causing the safety accident of silo explosion, securely and reliably.
Description
Technical field
The utility model is related to concrete mixing plant silos to protect accessory technical field, more particularly to a kind of alarm pressure peace
Full valve.
Background technology
The over-pressure safety device of existing concrete mixing plant silo generally uses mechanical compression safety valve, as shown in Figure 1,
It is made of valve body, pedestal, upper cover, sealing plate, spring, gasket, adjusting nut, screw rod etc., the height H of spring can be by turning
The adjustment adjusting nut above screw rod is moved to adjust, the unlatching that can correct safety valve as needed using this structure is (whole
It is fixed) pressure.The Product Level is mounted at the top of silo, and advance trepanning at the top of silo, safety valve base is welded at the top of silo, makes
It is connected to safety valve inside inside silo, forms confined space.When silo internal pressure be more than external pressure (environmental pressure), it is interior
When external pressure difference is equal to or more than pressure arrange parameter value, due to gas pressure, spring is compressed, and H numerical value becomes smaller, sealing plate
It is lifted up, gasket is detached from valve body sealing surface and forms exhaust clearance, and air-flow discharges, and reduces air pressure inside, reaches pressure release
Purpose, as shown in Fig. 2, by certain time, when external and internal pressure difference is less than pressure arrange parameter value, due to the elastic force of spring
And the gravity of sealing plate, sealing plate move downward compression gasket, close valve, stop pressure release, complete a job and follow
Ring.
And pressure safety valve used in existing concrete mixing plant silo has following defect：In bulk cement carrier toward cylinder
In storehouse when dnockout (pneumatic transmission), discharge pressure is 2~3Kg/c ㎡, and pressure in silo is caused slowly to rise.When silo internal pressure reaches
When to safety valve setting pressure, safety valve can directly open carry out pressure release, cannot accomplish to give warning in advance, and keep dusty gas direct
It is discharged into air, pollutes environment, only when staff has found that the when of having dusty gas to be discharged into air can just find alert
And stopping dnockout, discovery is later, may be such that more dusty gas can be discharged into air, does not find such as will continue in time
The dnockout in silo, then the dusty gas being discharged into air is more, environmental pollution bigger, and in addition safety valve itself only has one
Layer protection, such as since cause specific causes safe defective valve, hypertonia can cause the safety accident that silo bursts in storehouse.
Utility model content
The purpose of this utility model is to propose a kind of alarm pressure safety valve, including pedestal, valve body and upper cover, the pedestal
Lateral wall top be equipped with pedestal chimb, the lateral wall lower part of the valve body is equipped with valve body chimb, the pedestal chimb with it is described
Valve body chimb is clamped by exterior seal ring, and symmetrically arranged semifixed circle is connected on the outside of the exterior seal ring, is symmetrical arranged
The semifixed circle between connected by fixing bolt, the lateral wall top of the valve body is uniformly provided with interconnecting piece, the valve
The upside of body is equipped with sealing plate, runs through at the center of the sealing plate and is equipped with bearing, on the upper surface of the sealing plate and in institute
It states and is installed with microswitch on the left of bearing, the microswitch is connect by signal wire with external controller, described close
Adjusting screw, the upper surface of the sealing plate are symmetrically threaded on the upper surface of sealing plate and before and after the right side of the bearing
It is upper and adjustment seat is equipped between the front and back symmetrically arranged adjusting screw, the rear and front end of the adjustment seat respectively with neighbour
The lateral wall top of the close adjusting screw is threadedly coupled, and the upper end of the bearing is socketed with shrapnel, the right end of the shrapnel
The inside of the adjustment seat is extended into, the left end of the shrapnel extends to downside, the sealing at the switch of the microswitch
The lower surface of plate is equipped with pressing plate by fixing screws, between the upper center of the pressing plate and the lower end middle part of the sealing plate
Equipped with flexible sheet, the upper surface middle part of the flexible sheet is fixedly connected with the lower end of the bearing, the upper end of the pressing plate
Gasket is equipped between the lower end of the sealing plate, the lower surface of the gasket is in contact with the upper surface of the valve body,
Position corresponding with the interconnecting piece is uniformly installed with screw rod by the first installation nut group on the upper side of the upper cover,
The lower end of the screw rod sequentially pass through the upper cover, the sealing plate and the gasket by second installation nut group with it is right
The interconnecting piece connection answered, on the lateral wall of the screw rod and between the sealing plate and the first installation nut group from
It is equipped with adjusting nut and catch successively under, the outside of the screw rod and is all provided on the upside of the catch and the sealing plate
There is spring.
Further, group number that is equipped with of the screw rod and the interconnecting piece is 3.
Further, it is equipped with elastic corrugated sheath on the outside of the spring.
Further, it is pressed with annular concentric ripple on the flexible sheet.
Further, the spring is all made of spring steel material and is made.
Further, the gasket is made of silica gel material.
The technique effect of the utility model：The utility model can reach vent pressure in the inside of concrete mixing plant silo
Before, can early warning first be carried out in advance to staff, so that staff is scented a hidden danger and timely processing ahead of time, and pass through external control
Device processed, which sends out signal, makes dnockout stop, and avoids more dusty gas from being directly discharged to pollute environment in air, without occurring
The case where alert is only just found when staff has found to have dusty gas to be discharged into air, after alarm is failed, may be used also
Automatically it is normally carried out pressure release, avoids hypertonia in storehouse that from causing the safety accident of silo explosion, securely and reliably.
Description of the drawings
Fig. 1 is the structural schematic diagram of the safety valve of the prior art；
Fig. 2 is the pressure release principle schematic of the safety valve of the prior art；
Fig. 3 is the internal structure schematic diagram of the utility model；
Fig. 4 is the semifixed circle mounting structure schematic diagram of the utility model；
Fig. 5 is enlarged diagram at the A of Fig. 3；
Fig. 6 is enlarged diagram at the B of Fig. 3；
Fig. 7 is enlarged diagram at the C of Fig. 3；
Fig. 8 is the alarm principle schematic diagram of the utility model；
Fig. 9 is the pressure release principle schematic of the utility model.
Reference sign：
101- pedestals, 1011- pedestals chimb, 102- valve bodies, 1021- valve bodies chimb, 1022- interconnecting pieces, 103- upper covers,
The semifixed circle of 104- exterior seal rings, 105-, 106- fixing bolts, 107- sealing plates, 108- bearings, 109- microswitches, 110-
Signal wire, 111- adjusting screws, 112- adjustment seats, 113- shrapnels, 114- fixing screws, 115- pressing plates, 116- flexible sheets,
117- gaskets, 118- first install nut group, 119- screw rods, 120- second and install nut group, 121- adjusting nuts, 122- gears
Piece, 123- springs, the elastic corrugated sheaths of 124-.
Specific implementation mode
To make the objectives, technical solutions and advantages of the present invention clearer, With reference to embodiment
And with reference to attached drawing 3-9, the utility model is further described.It should be understood that these descriptions are merely illustrative, and it is not
Limit the scope of the utility model.In addition, in the following description, descriptions of well-known structures and technologies are omitted, to avoid
Unnecessarily obscure the concept of the utility model.
The utility model proposes alarm pressure safety valve, as shown in fig. 3 to 7, including pedestal 101, valve body 102 and upper cover
103, the lateral wall top of the pedestal 101 is equipped with pedestal chimb 1011, and the lateral wall lower part of the valve body 102 is convex equipped with valve body
Side 1021, the pedestal chimb 1011 are clamped with the valve body chimb 1021 by exterior seal ring 104, the exterior seal ring 104
Outside be connected with it is symmetrically arranged it is semifixed circle 105, it is symmetrically arranged it is described it is semifixed circle 105 between pass through fixing bolt
106 connections, exterior seal ring 104, semifixed circle 105 and fixing bolt 106 are equipped with, and make pedestal 101 and valve body 102 can be with
It is stably connected with together, and exterior seal ring 104 can play the role of sealing, the lateral wall top of the valve body 102 is uniformly provided with
The upside of interconnecting piece 1022, the valve body 102 is equipped with sealing plate 107, runs through at the center of the sealing plate 107 and is equipped with bearing
108, it is installed with microswitch 109 on the upper surface of the sealing plate 107 and in the left side of the bearing 108, it is described micro-
Dynamic switch 109 is connect by signal wire 110 with external controller, and microswitch 109 can be by signal wire 110 to external controller
Alarm signal is sent, external controller can connect buzzer and pressure device etc., alarm after receive the alarm signal, and
Stop the dnockout in silo, is symmetrically threadedly coupled on the upper surface of the sealing plate 107 and before and after the right side of the bearing 108
There is an adjusting screw 111, is set on the upper surface of the sealing plate 107 and between the front and back symmetrically arranged adjusting screw 111
There is an adjustment seat 112, the rear and front end of the adjustment seat 112 respectively lateral wall top with the neighbouring adjusting screw 111
It is threadedly coupled, the upper end of the bearing 108 is socketed with shrapnel 113, and the right end of the shrapnel 113 extends into the adjustment seat 112
Inside, adjust adjusting screw 111 height and position of adjustment seat 112 can be made change, while so that shrapnel 113 right end height position
Set change, the left end of the shrapnel 113 extends to downside at the switch of the microswitch 109, and the left end of shrapnel 113 can be to
On press the switch of microswitch 109, so that the contact NO and COM of microswitch 109 is connected, and output alarm signal, shrapnel 113
Left end move down, detached with the switch of microswitch 109, the contact NO and COM of microswitch 109 made to disconnect, stop report
The output of alert signal, the lower surface of the sealing plate 107 are equipped with pressing plate 115 by fixing screws 114, the pressing plate 115
Flexible sheet 116, the upper surface of the flexible sheet 116 are equipped between in the middle part of the lower end of upper center and the sealing plate 107
Middle part is fixedly connected with the lower end of the bearing 108, and flexible sheet 116 can drive bearing 108 and bullet under the action of air-flow
Piece 113 moves up and down jointly, and gasket 117 is equipped between the upper end of the pressing plate 115 and the lower end of the sealing plate 107, uses
In playing sealing function to valve body 102, the lower surface of the gasket 117 is in contact with the upper surface of the valve body 102, described
Position corresponding with the interconnecting piece 1022 is uniformly fixedly mounted by the first installation nut group 118 on the upper side of upper cover 103
There are screw rod 119, the lower end of the screw rod 119 to sequentially pass through the upper cover 103, the sealing plate 107 and the gasket 117
By the second installation nut group 120 and the connection of the corresponding interconnecting piece 1022, screw rod 119, interconnecting piece 1022, upper cover 103, the
One installation nut group 118 and second installs being equipped with for nut group 120, makes upper cover 103 that can be fixed together with valve body 102,
On the lateral wall of the screw rod 119 and between the sealing plate 107 and the first installation nut group 118 from top to bottom successively
Equipped with adjusting nut 121 and catch 122, the outside of the screw rod 119 and in the upper of the catch 122 and the sealing plate 107
Side is equipped with spring 123, and spring 123, sealing plate 107 are equipped with gasket 117, and gasket 117 can be made in spring 123
Valve body 102 is effectively sealed under the pressure of sealing plate 107, adjusting nut 121 is equipped with catch 122, for adjusting
The height of spring 123, the pressure of sealing plate 107 is adjusted in spring 123.
Preferably, group number that is equipped with of the screw rod 119 and the interconnecting piece 1022 is 3, can make sealing plate 107 by
To uniform pressure.
Preferably, the outside of the spring 123 is equipped with elastic corrugated sheath 124, plays protection to spring 123 and makees
With.
Preferably, it is pressed with annular concentric ripple on the flexible sheet 116, it can be by import 316L stainless steels, HC/HB
(Hastelloy), Ta (tantalum), Ti (titanium), monel metal are made, and measuring cell can be generated with pressure applied at just when pressure
The deformation of ratio.
Preferably, the spring 123 is all made of spring steel material and is made, and is heat-treated, zinc-plated on surface again later,
Elastic force is big, and anti-fatigue performance is good.
Preferably, the gasket 117 is made of silica gel material, and thermal stability is good, and chemical property is stablized, and has higher
Mechanical strength, good seal performance.
Bulk cement carrier dnockout (pneumatic transmission) in silo, discharge pressure are 2~3Kg/c ㎡, and pressure in storehouse is caused constantly to rise,
As shown in figure 8, flexible sheet 116, which is pressurized, occurs flexible deformation, gradually bearing 108 is driven to move up.When external and internal pressure difference
When equal to alarm setting parameter value, bearing 108 pushes shrapnel 114 to move up, and shrapnel 113 depresses the switch of microswitch 109,
The contact NO and COM of microswitch 109 is set to be connected, by signal wire 110 to external controller output alarm signal, to work people
Member's alarm, and stop the dnockout in silo.Alarm pressure arrange parameter value is less than valve pressure release parameter value, and safety valve is not at this time
It opens, will not discharge in dusty gas to air, will not pollute.Bearing 108, shrapnel 113 and 112 three of adjustment seat are formed
One Ge Gan thick sticks mechanism can adjust the height h1 of adjustment seat 112 by adjusting adjusting screw 111, make the right end of shrapnel 113 with it is close
Height H2 numerical value between sealing plate 107 changes, and when work causes the lifting height h2 numerical value of the left end of shrapnel 113 that phase occurs
It should change, can reach the big minor adjustment purpose of alarm pressure, H2 numerical value is bigger, and alarm pressure is bigger.To prevent dusty gas from discharging
It pollutes, it is generally the case that alarm pressure setting value is smaller 1000Pa than vent pressure setting value.When pressure drops in silo
Certain numerical value, flexible sheet 116, which is pressurized, to be reduced, and is sprung back, is driven bearing 108 and shrapnel 113 to move down, make microswitch
109 contact NO and COM disconnects, and alarm signal releases, and can continue the dnockout in silo at this time.If staff does not adopt after alarm
Corresponding measure is taken, the dnockout in silo is continued to, pressure then will continue to rise in storehouse, as shown in figure 9, when pressure reaches valve
When setting pressure release parameter value, due to gas pressure, spring 123 can be compressed, and sealing plate 107 is made to be lifted up, and gasket 117 is de-
Sealing surface from valve body 102 forms exhaust clearance, loses heart, avoids silo internal pressure excessive and explode.By rotating spiral shell
Adjusting nut 121 on bar 119 can adjust the height H1 of spring 123, and the pressure that spring 123 is applied to sealing plate 107 is made to occur
Variation, can reach the adjusting purpose of vent pressure size, H1 numerical value is smaller, and vent pressure is bigger.
It should be understood that the above-mentioned specific implementation mode of the utility model is used only for exemplary illustration or explains this reality
With novel principle, without constituting limitations of the present invention.Therefore, in the spirit and scope without departing from the utility model
In the case of any modification, equivalent substitution, improvement and etc. done, should be included within the scope of protection of this utility model.In addition,
The appended claims for the utility model are intended to cover to fall into attached claim scope and boundary or this range and boundary
Whole change and modification examples in equivalent form.
Claims (6)
1. alarm pressure safety valve, which is characterized in that including:
The lateral wall top of pedestal (101), valve body (102) and upper cover (103), the pedestal (101) is equipped with pedestal chimb
(1011), the lateral wall lower part of the valve body (102) is equipped with valve body chimb (1021), the pedestal chimb (1011) and the valve
Body chimb (1021) is clamped by exterior seal ring (104), and it is solid that symmetrically arranged half is connected on the outside of the exterior seal ring (104)
It is fixed to enclose (105), pass through fixing bolt (106) between the symmetrically arranged semifixed circle (105) and connects, the valve body (102)
Lateral wall top be uniformly provided with interconnecting piece (1022), the upside of the valve body (102) is equipped with sealing plate (107), the sealing
Run through at the center of plate (107) and be equipped with bearing (108), on the upper surface of the sealing plate (107) and in the bearing (108)
Left side is installed with microswitch (109), and the microswitch (109) is connect by signal wire (110) with external controller,
It is symmetrically threaded with adjusting screw on the upper surface of the sealing plate (107) and before and after the right side of the bearing (108)
(111), tune is equipped on the upper surface of the sealing plate (107) and between the front and back symmetrically arranged adjusting screw (111)
Save seat (112), the rear and front end of the adjustment seat (112) respectively on the lateral wall of the neighbouring adjusting screw (111)
Portion is threadedly coupled, and the upper end of the bearing (108) is socketed with shrapnel (113), and the right end of the shrapnel (113) extends into the tune
The inside of seat (112) is saved, the left end of the shrapnel (113) extends to downside at the switch of the microswitch (109), described close
The lower surface of sealing plate (107) is equipped with pressing plate (115), the upper center of the pressing plate (115) and institute by fixing screws (114)
Be equipped with flexible sheet (116) between stating in the middle part of the lower end of sealing plate (107), the upper surface middle part of the flexible sheet (116) with
The lower end of the bearing (108) is fixedly connected, and is set between the upper end and the lower end of the sealing plate (107) of the pressing plate (115)
There are gasket (117), the lower surface of the gasket (117) to be in contact with the upper surface of the valve body (102), the upper cover
(103) position corresponding with the interconnecting piece (1022) is pacified by the way that the first installation nut group (118) is uniformly fixed on upper side
Equipped with screw rod (119), the lower end of the screw rod (119) sequentially passes through the upper cover (103), the sealing plate (107) and institute
It states gasket (117) to connect with the corresponding interconnecting piece (1022) by the second installation nut group (120), the screw rod
(119) it is set successively from top to bottom on lateral wall and between the sealing plate (107) and the first installation nut group (118)
There are an adjusting nut (121) and catch (122), the outside of the screw rod (119) and in the catch (122) and the sealing plate
(107) spring (123) is equipped on the upside of.
2. alarm pressure safety valve according to claim 1, it is characterised in that：
The screw rod (119) and group number that is equipped with of the interconnecting piece (1022) are 3.
3. alarm pressure safety valve according to claim 1, it is characterised in that：
It is equipped with elastic corrugated sheath (124) on the outside of the spring (123).
4. alarm pressure safety valve according to claim 1, it is characterised in that：
It is pressed with annular concentric ripple on the flexible sheet (116).
5. alarm pressure safety valve according to claim 1, it is characterised in that：
The spring (123) is all made of spring steel material and is made.
6. alarm pressure safety valve according to claim 1, it is characterised in that：
The gasket (117) is made of silica gel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069369.1U CN207830658U (en) | 2018-01-16 | 2018-01-16 | Alarm pressure safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820069369.1U CN207830658U (en) | 2018-01-16 | 2018-01-16 | Alarm pressure safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830658U true CN207830658U (en) | 2018-09-07 |
Family
ID=63393226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820069369.1U Active CN207830658U (en) | 2018-01-16 | 2018-01-16 | Alarm pressure safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830658U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043702A (en) * | 2018-01-16 | 2019-07-23 | 广东科维机械设备有限公司 | Alarm pressure safety valve |
-
2018
- 2018-01-16 CN CN201820069369.1U patent/CN207830658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043702A (en) * | 2018-01-16 | 2019-07-23 | 广东科维机械设备有限公司 | Alarm pressure safety valve |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528467 Building C, No. 9 Binhe West Road, Tanzhou Town, Zhongshan City, Guangdong Province Patentee after: Guangdong Kewei Machinery Equipment Co., Ltd. Address before: 528467 Building C, No. 9 Binhe West Road, Tanzhou Town, Zhongshan City, Guangdong Province Patentee before: Zhongshan CISCO dimensional machinery and Equipment Co., Ltd. |