CN207960673U - A kind of more pressure adaptive jet stream pump assemblies - Google Patents
A kind of more pressure adaptive jet stream pump assemblies Download PDFInfo
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- CN207960673U CN207960673U CN201820309651.2U CN201820309651U CN207960673U CN 207960673 U CN207960673 U CN 207960673U CN 201820309651 U CN201820309651 U CN 201820309651U CN 207960673 U CN207960673 U CN 207960673U
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Abstract
The utility model a kind of more pressure adaptive jet stream pump assemblies, including water pump, high pressure conduit pipe, low pressure conduit pipe and straight tube etc.；Wherein, No.1 manual ball valve, No.1 high-pressure jet valve and high-pressure spray pump are sequentially installed with from top to bottom on high pressure conduit pipe；It is sequentially installed with No. two manual ball valves, low pressure stream valve and low pressure stream pump from top to bottom on low pressure conduit pipe；The lower part end of high pressure conduit pipe and low pressure conduit pipe is connected in sump；The side of high-pressure spray pump is connected with No.1 pump-line, and No.1 vacuum table, No.1 B/P EGR Back Pressure Transducer EGR and No. two high-pressure jet valves are from left to right sequentially installed on No.1 pump-line；The side of low pressure stream pump is connected with No. two pump-lines, and No. two vacuum tables, No. two B/P EGR Back Pressure Transducer EGRs and No. three high-pressure jet valves are from left to right sequentially installed on No. two pump-lines；No.1 pump-line and No. two pump-lines are connected eventually by straight tube with water pump；Positive pressure table and positive pressure sensor are installed on straight tube.
Description
Technical field
The utility model belongs to mine drainage technical field, and in particular to a kind of more pressure adaptive jet pumps are total
At.
Background technology
Coal mine main drainage system mostly uses centrifugal water pump, and pump working operating mode must be adapted with suction vacuum,
Necessary net positive suction head is kept, drainage efficiency can be just given full play to.The method of reduction system suction vacuum has：Without bottom valve is arranged
Water, high water level draining, positive pressuring drainage etc. have become mainstream using no bottom valve at this stage, that is, cancel the mating bottom valve of water pump
Spool extracts air in suction hose and water pump out in the way of vacuum pump or jet pump diversion, and makes to be full of water in the pump housing, then
It switches on the pump.This drainage pattern is easy to operate, is easy to implement automation, and reduces the resistance that is generated due to bottom valve and each
Kind failure.Secondly, compare vacuum pump diversion mode, jet pump diversion mode have simple in structure, system it is reliable, without distribution,
The advantages such as expense is low, are widely used in drainage system under coal mine.
At this stage, typical underground coal mine water pump diversion jet stream pump assembly according to water source type selection as shown in Figure 1, open
No.1 manual ball valve 1 or No. two manual ball valves 2 are opened, when water pump 12 vacuumizes, are first opened accordingly according to power water source type
No.1 fluid valve 3 or No. two fluid valves 4, open simultaneously vacuum valve 9, and jet pump 5 starts to vacuumize, 7 real-time display of vacuum table
Current negative pressure value, and pressure value is fed back to by B/P EGR Back Pressure Transducer EGR 8 by control system, the control system when negative pressure reaches certain value
Instruction is sent out, vacuum valve 9 is closed, and water pump 12 is opened, and No.1 fluid valve 3 or No. two fluid valves 4 are closed, after a certain period of time water pump
12 water outlets form positive pressure, the current positive pressure value of 10 real-time display of positive pressure table, and pressure value is fed back to control system by positive pressure sensor 11
System, after positive pressure reaches a certain level, control system sends out instruction, and the gate valve above pump outlet automatically opens, to real
Existing underground coal mine automation draining.Such mode has the following problems：
1.《Coal mine underground water drainage pumping plant and discharge pipe line design specification》(number is：GB50451-2008 regulation in)：It " penetrates
Stream pump is preferably using the pressure water in drainpipe as the energy, using the pressure water in compressed air or sprinkling pipeline as stand-by power source,
The two must not use simultaneously, separation valve door should be set between the two energy, pressure is by pressure the greater value in two kinds of energy.”
Underground fire sprinkler generally using head-tank is arranged in grass industrial sites, is spilt by the fire-fighting being laid in pit shaft
Waterpipe send the water in head-tank to underground, and the potential energy generated by the height difference in ground and shaft bottom is spilt as underground fire-fighting
When height difference is larger pressure reducing valve should be arranged in wellbore bottom, general underground fire sprinkler manifold pressure is no more than in the power of water
3.5MPa。
At this stage, China coal seam buried depth is more than that the great burying mine of 600m is more and more, under this Conditions of Buried Depth, underground master
At draining pump house discharge pipe line inside static pressure reach 6.3MPa (with the increasing of coal seam buried depth, discharge pipe line inside static pressure also phase
It should increase).At this point, according to design specification, the rated pressure of drainage system under coal mine jet pump should select 6.3MPa or more.So
And found in actual use, 6.3MPa jet pumps should be using rated pressure, it, cannot when power source uses underground fire sprinkler
Reach the vacuum degree needed for starting mode of pump at the appointed time, or even vacuum degree can not still reach after jet pump long-play
Mark, the accident for causing water pump that can not start bring larger hidden danger to the safety in production of coal mine.The reason of causing this phenomenon be：
The parameters such as the inwardly projecting orifice size of jet pump, mixing chamber size are both needed to match with the pressure of power source, are to set with elevated pressures
The jet pump for counting foundation, when using pressure lower power source, the efficiency that vacuumizes is low, effect is undesirable.
2. in above-mentioned example, if drainage system uses rated pressure for the jet pump of 4.0MPa, with the pressure in drainpipe
When power water (6.3MPa) is power source, because the design rated pressure of various parts (including jet pump, pipeline) is less than power source
Pressure so that the body of jet pump may can also be leaked by pressure break, component connecting portion when being sealed in pressure limit,
There is security risk.
Utility model content
The purpose of this utility model is to provide a kind of more pressure adaptive jet stream pump assemblies, in a variety of pressure ratings
Under the conditions of pressure water source, using air in jet stream pumped suction hose and water pump, the bottomless of main drain pump is safely and efficiently realized
Valve drains.
What the utility model adopts the following technical solution to realize：
A kind of more pressure adaptive jet stream pump assemblies, including sump, water pump, high pressure conduit pipe, low pressure conduit pipe and
Straight tube；Wherein,
It is sequentially installed with No.1 manual ball valve, No.1 high-pressure jet valve and high injection from top to bottom on high pressure conduit pipe
Stream pump；It is sequentially installed with No. two manual ball valves, low pressure stream valve and low pressure stream pump from top to bottom on low pressure conduit pipe；It is high
The top end of pressure conduit pipe is connected with down-hole discharge pipe line, the top end of low pressure conduit pipe and down-hole
Compressed air line or fire-fighting sprinkling pipeline are connected；The lower part end of high pressure conduit pipe and low pressure conduit pipe is connected to sump
It is interior；The side of high-pressure spray pump is connected with No.1 pump-line, and No.1 is from left to right sequentially installed on No.1 pump-line
Vacuum table, No.1 B/P EGR Back Pressure Transducer EGR and No. two high-pressure jet valves；The side of low pressure stream pump is connected with No. two pump-lines, two
It is from left to right sequentially installed with No. two vacuum tables, No. two B/P EGR Back Pressure Transducer EGRs and No. three high-pressure jet valves on number pump-line；No.1
Pump-line and No. two pump-lines are connected eventually by straight tube with water pump；Positive pressure table and positive pressure sensing are installed on straight tube
Device.
The utility model, which further improves, to be, high pressure conduit pipe wall thickness and discharge pipe line at underground main drainage pump room
Inside static pressure matches；Low pressure conduit pipe wall thickness and the actual pressure phase in underground compressed air line or fire-fighting sprinkling pipeline
Matching.
The utility model, which further improves, to be, the part No.1 exhaust tube between No. two high-pressure jet valves and straight tube
Road, the wall thickness of the pump-line of part two and straight tube between No. three high-pressure jet valves and straight tube is and water pump discharge pressure
Match.
The utility model further improves is, No.1 manual ball valve, No.1 high-pressure jet valve and high-pressure spray pump
Rated pressure matches with discharge pipe line inside static pressure at underground main drainage pump room.
The utility model, which further improves, to be, No. two manual ball valves, low pressure stream valve and low pressure stream pump specified
Pressure matches with the actual pressure in underground compressed air line or fire-fighting sprinkling pipeline.
The utility model, which further improves, to be, No. two high-pressure jet valves, No. three high-pressure jet valves, positive pressure table and positive pressure
The rated pressure and range of sensor match with water pump discharge pressure.
The utility model, which further improves, to be, the model of No.1 vacuum table and No. two vacuum tables is identical, No.1 negative pressure
The model of sensor and No. two B/P EGR Back Pressure Transducer EGRs is identical, and the model of No. two high-pressure jet valves and No. three high-pressure jet valves is identical.
The utility model at least has technique effect beneficial below：
A kind of more pressure adaptive jet stream pump assemblies provided by the utility model, it is more than 650m to be mainly used in coal seam buried depth
Great burying mine underground drainage system in.When water pump vacuumizes, according to drainage underground pipeline as power source, because of underground
Hydraulic pressure is larger in discharge pipe line, and control system sends out instruction, opens No.1 high-pressure jet valve and No. two high-pressure jet valves, closes low
Jet flow valve and No. three high-pressure jet valves, at this time drainage underground pipeline mesohigh water sump, band are entered by high pressure conduit pipe
Dynamic high-pressure spray pump starts to vacuumize, and after vacuum degree reaches setting value, signal is passed to control system by No.1 B/P EGR Back Pressure Transducer EGR
System, control system send out instruction, close No. two high-pressure jet valves, open water pump, close No.1 high-pressure jet valve；According to mine
Underground compressed air or fire sprinkler are as power source, because underground compressed air or fire sprinkler pressure are smaller, control system hair
Go out instruction, open low pressure stream valve and No. three high-pressure jet valves, closes No.1 high-pressure jet valve and No. two high-pressure jet valves, at this time
Compressed air or fire sprinkler enter sump by low pressure conduit pipe, drive low pressure stream pump to start to vacuumize, work as vacuum degree
After reaching setting value, signal is passed to control system by No. two B/P EGR Back Pressure Transducer EGRs, and control system sends out instruction, closes No. three high pressures
Fluid valve opens water pump, closes low pressure stream valve.Specifically, it has the advantage that：
Coal seam buried depth is more than the great burying mine of 650m, when water pump vacuumizes, can be controlled according to the pressure size of power source
System starts or closes related valve automatically.When using the larger drainage underground pipeline of pressure as power source, high-pressure jet
Pump vacuumizes water pump；When using pressure smaller underground compressed air or fire sprinkler as power source, low pressure is penetrated
Stream pump vacuumizes water pump.This make the inwardly projecting orifice size of jet pump, mixing chamber size etc. parameters with power source
Pressure matches, and substantially increases efficient (in the practical application can in 3min vacuum degree needed for interior realization) vacuumized, keeps away
The accident that water pump can not start, the design rated pressure and power source of each component of simultaneity factor (including jet pump, pipeline) are exempted from
Pressure match, the body of jet pump will not be not susceptible to leak by pressure break, connecting portion, avoid security risk.
Description of the drawings
Fig. 1 is typical underground coal mine water pump diversion jet pump assembly diagram.
Fig. 2 is a kind of more pressure adaptive jet pump assembly diagrams of the utility model.
In figure：1, No.1 manual ball valve；2, No. two manual ball valves；3, No.1 fluid valve；4, No. two fluid valves；5, jet stream
Pump；6, sump；7, vacuum table；8, B/P EGR Back Pressure Transducer EGR；9, vacuum valve；10, positive pressure table；11, positive pressure sensor；12, water pump；13、
No.1 high-pressure jet valve；14, low pressure stream valve；15, high-pressure spray pump；16, low pressure stream pumps；17, No.1 vacuum table；18, two
Number vacuum table；19, No.1 B/P EGR Back Pressure Transducer EGR；20, No. two B/P EGR Back Pressure Transducer EGRs；21, No. two high-pressure jet valves；22, No. three high injections
Flow valve；23, high pressure conduit pipe；24, low pressure conduit pipe；25, No.1 pump-line；26, No. two pump-lines；27, straight tube.
Specific implementation mode
The specific technical solution of the utility model is described in detail below in conjunction with attached drawing, but this does not imply that right
The scope of protection of the utility model limits.
As shown in Fig. 2, a kind of more pressure adaptive jet stream pump assemblies provided by the utility model, including sump 6, water pump
12, high pressure conduit pipe 23, low pressure conduit pipe 24 and straight tube 27；Wherein, on high pressure conduit pipe 23 from top to bottom successively
No.1 manual ball valve 1, No.1 high-pressure jet valve 13 and high-pressure spray pump 15 are installed；On low pressure conduit pipe 24 from top to bottom according to
No. two manual ball valves 2 of secondary installation, low pressure stream valve 14 and low pressure stream pump 16；The top end of high pressure conduit pipe 23 and mine
Drainage underground pipeline is connected, top end and down-hole compressed air line or the fire sprinkler pipe of low pressure conduit pipe 24
Road is connected；The lower part end of high pressure conduit pipe 23 and low pressure conduit pipe 24 is connected in sump 6.The side of high-pressure spray pump 15
Face is connected with No.1 pump-line 25, on No.1 pump-line 25, is from left to right sequentially installed with No.1 vacuum table 17, No.1
19, No. two high-pressure jet valves 21 of B/P EGR Back Pressure Transducer EGR；The side of low pressure stream pump 16 is connected with No. two pump-lines 26, is taken out at No. two
In feed channel 26, it is from left to right sequentially installed with No. two high-pressure jet valves 22 of B/P EGR Back Pressure Transducer EGR 20, three of vacuum table 18, two；
No.1 pump-line 25 and No. two pump-lines 26 are connected eventually by straight tube 27 with water pump 12；It is equipped with just on straight tube 27
Press table 10 and positive pressure sensor 11.
As shown in Fig. 2, 23 wall thickness of high pressure conduit pipe and discharge pipe line inside static pressure at underground main drainage pump room
Match；24 wall thickness of low pressure conduit pipe matches with the actual pressure in underground compressed air line or fire-fighting sprinkling pipeline；
Part No.1 pump-line 25, three between No. two high-pressure jet valves 21 and straight tube 27 is between high-pressure jet valve 22 and straight tube 27
The pump-line 26 of part two, straight tube 27 wall thickness match with 12 outlet pressure of water pump.
As shown in Fig. 2, the specified pressure of the No.1 manual ball valve 1, No.1 high-pressure jet valve 13 and high-pressure spray pump 15
Power matches with discharge pipe line inside static pressure at underground main drainage pump room；No. two manual ball valves 2, low pressure stream valve 14 and low pressure are penetrated
The rated pressure of stream pump 16 matches with the actual pressure in underground compressed air line or fire-fighting sprinkling pipeline；No. two high injections
It flows 21, No. three high-pressure jet valves 22 of valve, the rated pressure of positive pressure table 10 and positive pressure sensor 11 and range and the outlet of water pump 12 is pressed
Power matches.No.1 vacuum table 17 is identical with the model of No. two vacuum tables 18, No.1 B/P EGR Back Pressure Transducer EGR 19 and No. two negative pressure sensings
The model of device 20 is identical, and No. two high-pressure jet valves 21 are identical with the model of No. three high-pressure jet valves 22.
The operation principle of the utility model is：
A kind of more pressure adaptive jet stream pump assemblies provided by the utility model, it is more than 650m to be mainly used in coal seam buried depth
Great burying mine underground drainage system in.When water pump 12 vacuumizes, according to drainage underground pipeline as power source, because of well
Hydraulic pressure is larger in lower discharge pipe line, and control system sends out instruction, opens No.1 high-pressure jet valve 13 and No. two high-pressure jet valves 21,
Low pressure stream valve 14 and No. three high-pressure jet valves 22 are closed, drainage underground pipeline mesohigh water passes through high pressure conduit pipe 23 at this time
Into sump 6, high-pressure spray pump 15 is driven to start to vacuumize, after vacuum degree reaches setting value, No.1 B/P EGR Back Pressure Transducer EGR 19 will
Signal passes to control system, and control system sends out instruction, closes No. two high-pressure jet valves 21, opens water pump 12, closes No.1
High-pressure jet valve 13, the positive pressure of 12 water outlet of water pump formation after a certain period of time, positive pressure table 10 intuitively show current positive pressure value in real time,
Pressure value is fed back to control system by positive pressure sensor 11, and after positive pressure reaches a certain level, control system sends out instruction, water pump
Gate valve above water outlet automatically opens, to realize underground coal mine automation draining.
According to down-hole compressed air or fire sprinkler as power source, because of underground compressed air or fire sprinkler pressure
Power is smaller, and control system sends out instruction, opens low pressure stream valve 14 and No. three high-pressure jet valves 22, closes No.1 high-pressure jet valve
13 and No. two high-pressure jet valves 21, at this time compressed air or fire sprinkler sump 6 is entered by low pressure conduit pipe 24, drive low
Jet flow pump 16 starts to vacuumize, and after vacuum degree reaches setting value, signal is passed to control system by No. two B/P EGR Back Pressure Transducer EGRs 20
System, control system send out instruction, close No. three high-pressure jet valves 22, open water pump 12, close low pressure stream valve 14, certain time
12 water outlet of water pump forms positive pressure afterwards, and positive pressure table 10 intuitively shows current positive pressure value in real time, and positive pressure sensor 11 is pressure value
Control system is fed back to, after positive pressure reaches a certain level, control system sends out instruction, and the gate valve above pump outlet is automatic
It opens, to realize underground coal mine automation draining.
In 12 vacuum of water pump, No.1 vacuum table 17 or No. two vacuum tables 18 more can intuitively show that reality is true
Reciprocal of duty cycle is conducive to the manual operation when No.1 B/P EGR Back Pressure Transducer EGR 19 or No. two B/P EGR Back Pressure Transducer EGRs 20 break down；No.1 is manual
Ball valve 1 and No. two being provided with for manual ball valve 2 are conducive to, when system failure needs repairing, cut off power source.
Claims (7)
1. a kind of more pressure adaptive jet stream pump assemblies, which is characterized in that including sump (6), water pump (12), high pressure conduit pipe
(23), low pressure conduit pipe (24) and straight tube (27)；Wherein,
It is sequentially installed with No.1 manual ball valve (1), No.1 high-pressure jet valve (13) from top to bottom on high pressure conduit pipe (23)
With high-pressure spray pump (15)；No. two manual ball valves (2), low pressure are sequentially installed with from top to bottom on low pressure conduit pipe (24) to penetrate
Flow valve (14) and low pressure stream pump (16)；The top end of high pressure conduit pipe (23) is connected with down-hole discharge pipe line,
The top end of low pressure conduit pipe (24) is connected with down-hole compressed air line or fire-fighting sprinkling pipeline；High pressure diversion
The lower part end of pipeline (23) and low pressure conduit pipe (24) is connected in sump (6)；The side of high-pressure spray pump (15) is connected with
It is negative to be from left to right sequentially installed with No.1 vacuum table (17), No.1 on No.1 pump-line (25) for No.1 pump-line (25)
Pressure sensor (19) and No. two high-pressure jet valves (21)；The side of low pressure stream pump (16) is connected with No. two pump-lines (26),
No. two vacuum tables (18), No. two B/P EGR Back Pressure Transducer EGRs (20) and No. three are from left to right sequentially installed on No. two pump-lines (26)
High-pressure jet valve (22)；No.1 pump-line (25) and No. two pump-lines (26) are connected by straight tube (27) with water pump (12)
It is logical；Positive pressure table (10) and positive pressure sensor (11) are installed on straight tube (27).
2. a kind of more pressure adaptive jet stream pump assemblies according to claim 1, which is characterized in that high pressure conduit pipe
(23) wall thickness matches with discharge pipe line inside static pressure at underground main drainage pump room；Low pressure conduit pipe (24) wall thickness and underground pressure
Actual pressure in contracting air pipe line or fire-fighting sprinkling pipeline matches.
3. a kind of more pressure adaptive jet stream pump assemblies according to claim 1, which is characterized in that No. two high-pressure jet valves
(21) the part No.1 pump-line (25) between straight tube (27), the portion between No. three high-pressure jet valves (22) and straight tube (27)
The wall thickness of No. two pump-lines (26) and straight tube (27) is divided to match with water pump (12) outlet pressure.
4. a kind of more pressure adaptive jet stream pump assemblies according to claim 1, which is characterized in that No.1 manual ball valve
(1), at the rated pressure and underground main drainage pump room of No.1 high-pressure jet valve (13) and high-pressure spray pump (15) in discharge pipe line
Portion's static pressure matches.
5. a kind of more pressure adaptive jet stream pump assemblies according to claim 1, which is characterized in that No. two manual ball valves
(2), the rated pressure and underground compressed air line or fire-fighting sprinkling pipeline of low pressure stream valve (14) and low pressure stream pump (16)
Interior actual pressure matches.
6. a kind of more pressure adaptive jet stream pump assemblies according to claim 1, which is characterized in that No. two high-pressure jet valves
(21), the rated pressure and range and water pump (12) of No. three high-pressure jet valves (22), positive pressure table (10) and positive pressure sensor (11)
Outlet pressure matches.
7. a kind of more pressure adaptive jet stream pump assemblies according to claim 1, which is characterized in that No.1 vacuum table (17)
Identical with the model of No. two vacuum tables (18), No.1 B/P EGR Back Pressure Transducer EGR (19) is identical with the model of No. two B/P EGR Back Pressure Transducer EGRs (20),
No. two high-pressure jet valves (21) are identical with the model of No. three high-pressure jet valves (22).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820309651.2U CN207960673U (en) | 2018-03-06 | 2018-03-06 | A kind of more pressure adaptive jet stream pump assemblies |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820309651.2U CN207960673U (en) | 2018-03-06 | 2018-03-06 | A kind of more pressure adaptive jet stream pump assemblies |
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| Publication Number | Publication Date |
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| CN207960673U true CN207960673U (en) | 2018-10-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798096A (en) * | 2019-01-16 | 2019-05-24 | 西安科技大学 | Pumping method is let out in pressure on a kind of half-edge coal seam layer-through drilling |
-
2018
- 2018-03-06 CN CN201820309651.2U patent/CN207960673U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109798096A (en) * | 2019-01-16 | 2019-05-24 | 西安科技大学 | Pumping method is let out in pressure on a kind of half-edge coal seam layer-through drilling |
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