CN203594074U - Negative-pressure suppressor - Google Patents
Negative-pressure suppressor Download PDFInfo
- Publication number
- CN203594074U CN203594074U CN201320805058.4U CN201320805058U CN203594074U CN 203594074 U CN203594074 U CN 203594074U CN 201320805058 U CN201320805058 U CN 201320805058U CN 203594074 U CN203594074 U CN 203594074U
- Authority
- CN
- China
- Prior art keywords
- upper shell
- axially extending
- extending bore
- float
- negative 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.)
- Expired - Lifetime
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- 230000005764 inhibitory process Effects 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 3
- 238000007667 floating Methods 0.000 abstract description 4
- 238000001914 filtration Methods 0.000 abstract 5
- 230000002265 prevention Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
A negative-pressure suppressor is structurally characterized by being composed of an upper shell, a connecting cylinder, an air filtering cylinder and a floating ball; the lower end face of the upper shell is in flanged connection with the upper end face of the connecting cylinder, the junction is provided with an axial through hole, and the upper shell is communicated with an inner cavity of the connecting cylinder through the axial through hole; the air filtering cylinder is hung at the axial through hole, the opening end of the air filtering cylinder is communicated with the axial through hole, the floating ball is arranged in the air filtering cylinder, and the diameter of the floating ball is larger than that of the axial through hole; the upper portion of the upper shell is provided with an exhaust hole; a plurality of air holes are formed in the surface of the air filtering cylinder. The negative-pressure suppressor has the advantages of being simple in structure, low in cost and capable of providing a water-spill prevention function for a device and sounding an alarm automatically when the device has a failure.
Description
Technical field
The utility model relates to a kind of water supply auxiliary equipment, relates in particular to a kind of negative pressure inhibition device.
Background technology
Steady-flow tank is the visual plant in non-negative pressure method of water supply, is generally all provided with negative pressure inhibition device on steady-flow tank, and the effect of negative pressure inhibition device is the inner and outer air pressure of balance stable-flow tank, existing negative pressure inhibition device complex structure, and cost is higher.
Utility model content
For the problem in background technology, the utility model proposes a kind of negative pressure inhibition device, its structure is: described negative pressure inhibition device is made up of upper shell, connecting cylinder, filter inflator and ball float; Described upper shell lower surface is connected with connecting cylinder upper surface flange, and junction is provided with axially extending bore, and axially extending bore is communicated with the inner chamber of upper shell and connecting cylinder; Filter inflator is lifted on axially extending bore position, and the openend of filter inflator is communicated with axially extending bore, and ball float is arranged in filter inflator, and floating ball diameter is greater than the aperture of axially extending bore; Upper shell top is provided with steam vent; Filter inflator surface is provided with multiple pores.
Operating principle of the present utility model is: negative pressure inhibition device of the present utility model is arranged on to steady-flow tank top, and connecting cylinder lower end and steady-flow tank internal communication, the water inlet end of steady-flow tank and city planting ductwork are connected, in the time that city planting ductwork feeds water, water surface elevation in steady-flow tank will rise, the gas of steady-flow tank inside will enter in upper shell by filter inflator, and finally discharge from steam vent, along with the rising of water level, the water surface in steady-flow tank will flood filter inflator gradually, ball float in filter inflator also can float thereupon, in the time that ball float floats up to axially extending bore position, ball float will stop up axially extending bore, thereby avoid finally overflowing from steam vent because water level continues to go up, equipment is played a protective role, simultaneously, after ball float stops up axially extending bore, hydraulic pressure in steady-flow tank can superpose with the hydraulic pressure of city planting ductwork, reach energy-conservation object, in the time of city planting ductwork insufficient water, because the water in steady-flow tank need to be supplied with water spot, therefore the water surface in steady-flow tank will decline, and now, extraneous gas can enter in upper shell and finally enter in steady-flow tank from steam vent again, makes can not produce in steady-flow tank negative pressure.
Tightness while contact with axially extending bore in order to improve ball float, the utility model has also been done following improvement: in axially extending bore, on edge, be provided with rubber washer, in the time that ball float contacts with edge in axially extending bore under buoyancy, the deformation surplus that rubber washer provides can make ball float that axially extending bore is sealed closelyr.
After device long-term work, there are unavoidably aging and wearing and tearing in part, especially between ball float and axially extending bore, easily there is seal failure, after seal failure, water just may soak full upper shell and finally diffuse out from steam vent, for this problem, the utility model has also proposed following improvement project: described steam vent place is provided with a float switch, the switching of float switch control steam vent; Control ball float on float switch is arranged in upper shell.When after seal failure between ball float and axially extending bore, water level can continue to rise in upper shell, and now, controlling ball float will be at buoyancy float downward, thereby transmission float switch is by vent closure, avoids water to diffuse out.
When occurring after aforesaid seal failure problem, should notifying immediately maintenance personal to process, in order to make the device can automatic alarm, the utility model have also been done following improvement: in described upper shell, be provided with a float ball liquid level sensor.In the time that the water surface goes up to certain altitude, just can be detected by float ball liquid level sensor, float ball liquid level sensor can an external warning device, just can be in the time that device breaks down automatic alarm.
Useful technique effect of the present utility model is: simple in structure, with low cost, can provide anti-spill-out function for device, and can be in the time of plant failure automatic alarm.
Accompanying drawing explanation
Fig. 1, structural representation of the present utility model;
Fig. 2, structural representation of the present utility model two.
The specific embodiment
A kind of negative pressure inhibition device, its structure is: described negative pressure inhibition device is made up of upper shell 1, connecting cylinder 2, filter inflator 3 and ball float 4; Described upper shell 1 lower surface is connected with connecting cylinder 2 upper surface flanges, and junction is provided with axially extending bore, and axially extending bore is communicated with the inner chamber of upper shell 1 and connecting cylinder 2; Filter inflator 3 is lifted on axially extending bore position, and the openend of filter inflator 3 is communicated with axially extending bore, and ball float 4 is arranged in filter inflator 3, and ball float 4 diameters are greater than the aperture of axially extending bore; Upper shell 1 top is provided with steam vent 1-1; Filter inflator 3 surfaces are provided with multiple pores.
Further, in axially extending bore, on edge, be provided with rubber washer.
Further, described steam vent 1-1 place is provided with a float switch 5, and float switch 5 is controlled the switching of steam vent 1-1; Control ball float 6 on float switch 5 is arranged in upper shell 1.
Further, in described upper shell 1, be provided with a float ball liquid level sensor 7.
Claims (4)
1. a negative pressure inhibition device, is characterized in that: described negative pressure inhibition device is made up of upper shell (1), connecting cylinder (2), filter inflator (3) and ball float (4); Described upper shell (1) lower surface is connected with connecting cylinder (2) upper surface flange, and junction is provided with axially extending bore, and axially extending bore is communicated with the inner chamber of upper shell (1) and connecting cylinder (2); Filter inflator (3) is lifted on axially extending bore position, and the openend of filter inflator (3) is communicated with axially extending bore, and ball float (4) is positioned in filter inflator (3), and ball float (4) diameter is greater than the aperture of axially extending bore; Upper shell (1) top is provided with steam vent (1-1); Filter inflator (3) surface is provided with multiple pores.
2. negative pressure inhibition device according to claim 1, is characterized in that: in axially extending bore, on edge, be provided with rubber washer.
3. negative pressure inhibition device according to claim 1, is characterized in that: described steam vent (1-1) locates to be provided with a float switch (5), and float switch (5) is controlled the switching of steam vent (1-1); Control ball float (6) on float switch (5) is arranged in upper shell (1).
4. negative pressure inhibition device according to claim 3, is characterized in that: in described upper shell (1), be provided with a float ball liquid level sensor (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805058.4U CN203594074U (en) | 2013-12-10 | 2013-12-10 | Negative-pressure suppressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320805058.4U CN203594074U (en) | 2013-12-10 | 2013-12-10 | Negative-pressure suppressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203594074U true CN203594074U (en) | 2014-05-14 |
Family
ID=50674970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320805058.4U Expired - Lifetime CN203594074U (en) | 2013-12-10 | 2013-12-10 | Negative-pressure suppressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203594074U (en) |
-
2013
- 2013-12-10 CN CN201320805058.4U patent/CN203594074U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |