CN203939725U - A kind of mining centrifugal water pump pump housing detection of negative pressure switch gear - Google Patents
A kind of mining centrifugal water pump pump housing detection of negative pressure switch gear Download PDFInfo
- Publication number
- CN203939725U CN203939725U CN201420302134.4U CN201420302134U CN203939725U CN 203939725 U CN203939725 U CN 203939725U CN 201420302134 U CN201420302134 U CN 201420302134U CN 203939725 U CN203939725 U CN 203939725U
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- Prior art keywords
- pump
- pump housing
- negative pressure
- water
- water pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 238000001514 detection method Methods 0.000 title claims abstract description 12
- 238000005065 mining Methods 0.000 title claims abstract description 9
- 239000003245 coal Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of mining centrifugal water pump pump housing detection of negative pressure switch gear, be arranged under coal mine on Centrifugal water pump pump housing negative pressure diversion pipeline.This device is made up of little water tank, keg buoy, float switch.Before centrifugal water pump drainage, need in the pump housing and suction line, to fill water, colliery Centrifugal water pump adopts negative pressure diversion mode to the pump housing and suction line water filling conventionally, in the time that in the pump housing and suction line, air is drained, this device can be more accurately, action reliably, sends contact point signal.
Description
Technical field
The utility model relates to Centrifugal water pump detection device under a kind of coal mine, is a kind of mining centrifugal water pump pump housing detection of negative pressure switch gear specifically.
Background technique
As everyone knows, first centrifugal pump needs the pump housing to be full of water before operation, air in the emptying pump housing.Under coal mine, pump house centrifugal pump adopts negative pressure diversion mode to the pump housing and suction line water filling thereof conventionally, and the reliable evacuation of air of the pump housing and suction line, to be full of water be the essential condition that water pump carries out drainage works.Conventionally measuring pump housing negative pressure numerical value is setting pressure sensor in negative pressure line, judges that according to pressure transducer numerical value in the pump housing, whether negative pressure can be drawn onto water in sump in the pump housing, and be reliably full of.Learn that according to hydrostatics formula P=ρ * g*h its pressure gauge numerical value and water level in water pool exist relation to pump housing height h, and water bunker level h is before each turn on pump, it not a definite value, the density p temperature influence of water in sump, the needed negative pressure of pump body and suction line thereof is difficult to accurately, reliably calculates, and needs in other words comprehensive multinomial technical parameter to carry out complicated calculations and just can draw.
Summary of the invention
For addressing the above problem, the utility model provides one to be subject to that peripheral parameter influence is little, simple, output signal Centrifugal water pump pump housing negative-pressure detection device more accurately and reliably.
Solution of the present utility model is: a kind of mining centrifugal water pump pump housing detection of negative pressure switch gear is mainly made up of little water tank, float switch and keg buoy, and peripheral unit comprises: centrifugal pump, water pump suction pipe, pumping line, sump, negative pressure line.Described float switch is arranged on little water tank, and keg buoy is connected with float switch.Little tank entry be connected with pump body by pipeline and on horizontal position a little more than pump body top.Little water tank outlet is connected with negative pressure line.
The working procedure of this device is: after exporting with little water tank the negative pressure line connection being connected, along with air in little water tank, the pump housing and suction line thereof is discharged gradually, water in sump, under barometric pressure effect, starts once to fill suction line, pump body and little water tank.After little water tank the inside water level slowly increases, the keg buoy of float switch starts to move up, float switch action, output contact signal.After water pump draining finishes, the water of little water tank inside, under Action of Gravity Field, flows out from little tank entry, and whole device starts to re-start above-mentioned working procedure.Hence one can see that water bunker level height no matter, little water tank all can be filled with water under suction function, float switch action, and little water tank is arranged on pump body top level or omits high position, can ensure that pump body fills after water, little cistern water level just can rise, float switch action, output contact signal, now in pump body, negative pressure has met drainage requirement completely.
brief description of the drawings:
Fig. 1 is mining centrifugal water pump pump housing detection of negative pressure switch gear structural representation.
embodiment:
Below in conjunction with accompanying drawing 1, the utility model is described further.
As shown in Figure 1, mining centrifugal water pump pump housing detection of negative pressure switch gear is mainly made up of little water tank (1), float switch (2), keg buoy (3), and peripheral unit comprises: centrifugal pump (4), water pump suction pipe (5), pumping line (6), sump (7), negative pressure line (8).It is upper that described float switch (2) is arranged on little water tank (1), and keg buoy (3) is connected with float switch (1).Little water tank (1) entrance be connected with water pump (4) pump housing by pipeline and on horizontal position a little more than water pump (4) pump housing top.Little water tank (1) outlet is connected with negative pressure line (8).
When being positioned at after negative pressure line (8) connection of little water tank (1) outlet connection, along with little water tank (1), the pump housing (4) and the interior air of suction line (5) thereof are discharged gradually, in sump, the water of (7), under barometric pressure effect, starts once to fill suction line (5), water pump (4) pump housing and little water tank (1).After little water tank (1) the inside water level slowly increases, the keg buoy (3) of float switch starts to move up, float switch (1) action, output node signal.After water pump draining finishes, the water of little water tank (1) inside, under Action of Gravity Field, flows out from little water tank (1) entrance, and whole device starts to re-start above-mentioned working procedure.Known no matter sump (7) water level height, little water tank (1) all can be filled with water under suction function, float switch (2) action, and little water tank (1) mounting point and water pump (4) pump housing top level or slightly high, can ensure that water pump (4) pump housing fills after water, little water tank (1) water level just can rise, float switch (2) action, output contact signal, now in water pump (4) pump housing, negative pressure has met drainage requirement completely.
Adopt above-mentioned pump body negative-pressure detection device to be subject to peripheral parameter influence little, simple, output signal relatively accurately, reliable.
Claims (2)
1. a mining centrifugal water pump pump housing detection of negative pressure switch gear, it is characterized in that: this device is made up of little water tank (1), float switch (2) and keg buoy (3), it is upper that float switch (2) is arranged on little water tank (1), and keg buoy (3) is connected with float switch (2).
2. the mining centrifugal water pump pump housing of one according to claim 1 detection of negative pressure switch gear, is characterized in that: little water tank (1) entrance is connected with water pump (4) pump housing by pipeline, and little water tank (1) outlet is connected with negative pressure line (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302134.4U CN203939725U (en) | 2014-06-09 | 2014-06-09 | A kind of mining centrifugal water pump pump housing detection of negative pressure switch gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420302134.4U CN203939725U (en) | 2014-06-09 | 2014-06-09 | A kind of mining centrifugal water pump pump housing detection of negative pressure switch gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203939725U true CN203939725U (en) | 2014-11-12 |
Family
ID=51859041
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420302134.4U Expired - Lifetime CN203939725U (en) | 2014-06-09 | 2014-06-09 | A kind of mining centrifugal water pump pump housing detection of negative pressure switch gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203939725U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912813A (en) * | 2015-05-08 | 2015-09-16 | 湖南山源安自控系统有限公司 | Water and gas separation detection protection device for precisely judging water diversion state of mine draining pump |
| CN113309704A (en) * | 2021-06-02 | 2021-08-27 | 河北森之盾消防科技有限责任公司 | Centrifugal fire-fighting water pump |
-
2014
- 2014-06-09 CN CN201420302134.4U patent/CN203939725U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912813A (en) * | 2015-05-08 | 2015-09-16 | 湖南山源安自控系统有限公司 | Water and gas separation detection protection device for precisely judging water diversion state of mine draining pump |
| CN113309704A (en) * | 2021-06-02 | 2021-08-27 | 河北森之盾消防科技有限责任公司 | Centrifugal fire-fighting water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 063020 Torch Road, Tangshan City high tech Zone, Hebei, No. 183 Patentee after: CITIC HIC KAICHENG INTELLIGENCE EQUIPMENT Co.,Ltd. Address before: 063020 Torch Road, Tangshan City high tech Zone, Hebei, No. 183 Patentee before: TANGSHAN KAICHENG ELECTRONIC CONTROL EQUIPMENT GROUP Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20141112 |
|
| CX01 | Expiry of patent term |