CN207180460U - A kind of mine air-lack takes thermal - Google Patents
A kind of mine air-lack takes thermal Download PDFInfo
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- CN207180460U CN207180460U CN201721086195.1U CN201721086195U CN207180460U CN 207180460 U CN207180460 U CN 207180460U CN 201721086195 U CN201721086195 U CN 201721086195U CN 207180460 U CN207180460 U CN 207180460U
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Abstract
The utility model discloses a kind of mine air-lack to take thermal, and idle air air channel includes vertical section and the horizontal segment being connected with each other, and packing, flushing water-distributing device, atomizing sprayer, liquid barrier are successively set in vertical section；Rinse water-distributing device to be connected with flush water pump by rinse spray water supply line, flush water pump is connected with sedimentation basin, and sedimentation basin is connected by connecting pipe duct with collecting-tank, and collecting-tank is arranged on horizontal segment；Atomizing sprayer connects source pump evaporator and by-passing valve respectively by atomizing spray water supply line, and source pump evaporator and by-passing valve are all connected with automatic backwashing filter, automatic backwashing filter connection water circulating pump, water circulating pump connection sedimentation basin.The utility model improves idle air and takes hot heat transfer effect, can interpolate that whether atomizer blocks, and whether packing blocks, and realizes the flushing of atomizer and packing, realization device automatically cleaning, maintains high efficient heat exchanging efficiency.
Description
Technical field
The utility model belongs to colliery technical field of waste heat utilization, and in particular to a kind of mine air-lack takes thermal and control
Method.
Background technology
With control of the country to middle and small burn coal boiler and eliminate, production, life are increasingly becoming with heat restricts colliery peace
The subject matter produced entirely.Mine water is high-quality low-grade heat source.So the colliery that mine water is abundant, using water source heat pump system
Can meet coal-burning boiler close down after mining area heat problem.But for the colliery without mine water, few mine water, mine air-lack into
Only to deposit Large Copacity residual heat resources.
On extracting mine air-lack waste heat, for mining area life, production, many researchs existing at present.In completed work
Hot mode is taken using most, most ripe idle air in journey project, still belongs to spray heat exchange mode.But spray takes hot mode still to deposit
In deficiency, first, idle air contains a large amount of dusts, repeatedly spray nozzle clogging is easily caused after circulation；Second, atomized drop is too small, meeting
Cause to fly water, atomized drop is excessive, causes to exchange heat again insufficient.Therefore spray take heat must strictly control water quality, nozzle specification,
Irrigation pressure.
Utility model content
Taken for above-mentioned spray existing for hot systems it is insufficient, the utility model provide a kind of mine air-lack take thermal and
Its control method.
The utility model is achieved by the following technical solution：
A kind of mine air-lack takes thermal, including packing, rinses water-distributing device, atomizing sprayer, liquid barrier, punching
Washing and spraying water supply line, flush water pump, sedimentation basin, connection pipe duct, collecting-tank, atomizing spray water supply line, source pump evaporation
Device, by-passing valve, automatic backwashing filter, water circulating pump；
Idle air air channel includes vertical section and the horizontal segment being connected with each other, and packing, rinses water-distributing device, atomizing spray dress
Put, liquid barrier is successively set in vertical section；Rinse water-distributing device to be connected with flush water pump by rinse spray water supply line, rush
Wash water pump is connected with sedimentation basin, and sedimentation basin is connected by connecting pipe duct with collecting-tank, and collecting-tank is arranged on horizontal segment；
Atomizing sprayer connects source pump evaporator and by-passing valve, heat pump machine respectively by atomizing spray water supply line
Group evaporator and by-passing valve are all connected with automatic backwashing filter, automatic backwashing filter connection water circulating pump, water circulating pump
Connect sedimentation basin.
As further improvement of the utility model, sedimentation basin is provided with overflow pipe, and sewer is arranged on overflow pipe
Below road.
Sedimentation basin is provided with moisturizing pipeline.
Sedimentation basin is 2, and 1 is in stand-by state, and 1 in running order.
Water circulating pump is 2, and 1 is in stand-by state, and 1 in running order.
Automatic backwashing filter is 2 sets, and 1 set is in stand-by state, and 1 set in running order.
The atomizing spray water supply line be provided with atomizing spray pressure of supply water sensor, atomizing spray water supply flow meter and
Atomizing spray supply water temperature sensor.
Tube Temperature Sensor is communicated with the connection pipe duct.
Idle air duct temperature sensor is provided with the horizontal segment in the idle air air channel.
The vertical section top idle air exhaust port temperatures sensor in the idle air air channel.
Refill flow meter is housed in the moisturizing pipeline.
Moisturizing pipeline is provided with Liquid level valve.
The atomizing sprayer uses upper spray mode, and mouth spray is upward.
Flush water pump is fetched water from sedimentation basin, is supplied through rinse spray water supply line and is rinsed water-distributing device；Water circulating pump from
Sedimentation basin is fetched water, through automatic backwashing filter, into source pump evaporator, or into by-passing valve, then again through atomization
Water supply line is sprayed, delivers to atomizing sprayer.
Atomizing sprayer is controlled, obtains equivalent diameter 0.5~2.5mm drops.Because nozzle atomization liquid-drop diameter is one
Determine to be distributed in scope, for the larger-diameter drop of ejection, and in droplet motion process mutually collision accumulate it is big
Diameter droplets, because resistance deficiency is by rapid decrease, cause spray heat exchange deficiency.Now, using packing, the water of decline is received
Drop, moisture film is formed using filler space, increases the contact heat-exchanging time of water and idle air again, so as to improve heat transfer effect.
Idle air contains a large amount of dusts.To prevent dust from causing to have a strong impact on to whole heat transfer process, the utility model is taken
Following measure：
1st, by adding flocculant, sedimentation basin precipitates most of dust granule using gravity, collects situation according to plaster
Regular manual cleaning sedimentation basin.
2nd, in order to prevent bulky grain dust from blocking atomizer, configuration more than 2 sets filtration grades in water circulating pump outlet are little
In 200 μm of automatic backwashing filter.
3rd, configuration rinses water-distributing device, rinses the equipment such as water supply line and flush water pump, for the flushing for the filler that borders on the river, prevents
Only dust collect on filler space surface, fouling.
The 4th, by-passing valve is set, when atomizing sprayer nozzle blocks, stop the automatic back flush filtration of backwash
Device, start the water circulating pump and automatic backwashing filter of stand-by state, open by-passing valve, by increasing atomizing spray water supply pressure
Power and flow, rinse atomizer.
The utility model additionally provides the control method that a kind of mine air-lack takes thermal, and specially atomizing sprayer blocks up
Plug judges and purging method, step include：
According to Nozzle Parameter and specified water spray, the C under standard condition is calculated0Value.
Wherein, P0For the rated voltage drop (Pa) of nozzle, F0For the metered flow (m of nozzle3/ h), n is nozzle quantity.
Set reference value C1, C2, take C1=1.01~1.1C0, C2=1.4~1.6C0；
Detect atomizing spray water pipe pressure P (gauge pressure) and flow F1, and be calculated as followsWhen real-time inspection
The C measured>C2, illustrate atomizing spray spray nozzle clogging, implement nozzle rinse；
Start the water circulating pump of stand-by state, close source pump, open by-passing valve.By the side for increasing quantity of circulating water
Formula, rinse atomizing spray spray nozzle clogging.
In flushing process, if detecting C1>C, illustrate that spray nozzle clogging is removed substantially, terminate to rinse.
The utility model additionally provides the control method that a kind of mine air-lack takes thermal, and specially dirty block up of packing is sentenced
Disconnected and purging method, step include：
The design conditions of heat are taken according to idle air, calculate the k under standard state0,
Wherein,
t10Collect coolant-temperature gage for spray in design conditions lower communicating tube road,
t20For atomizing spray supply water temperature under design conditions,
T10For idle air initial temperature under design conditions,
T20For idle air exhaust port temperatures under design conditions.
Set reference value k1, take k1=0.7~0.9k0。
In running, atomizing spray supply water temperature t is detected2, idle air initial temperature T1, spray collects water in connecting pipe
Temperature t1, idle air exhaust port temperatures T2；And k values are calculated as follows：
When detecting obtained k≤k in real time1, illustrate that packing is dirty stifled, start flush water pump and be rinsed；Flushing 10~
After 30 minutes, flush water pump stops.
The utility model additionally provides the control method that a kind of mine air-lack takes thermal, is specially atomized winged water loss and sentences
Disconnected and control method, atomizing sprayer is controlled, obtain equivalent diameter 0.5~2.5mm drops.It is less than if there is diameter
0.5mm drop accounting is excessive, it will causes atomization to fly water loss.
Step includes：Once precipitating, pit level is relatively low, and Liquid level valve can open carry out moisturizing, be filled in moisturizing pipeline
There is refill flow meter；Continue flow if detecting refill flow meter and existing and maintain more than 10 minutes, illustrate in the presence of a large amount of atomizations
Fly water loss, be adjusted by turning down water circulating pump outlet valve aperture.
The utility model additionally provides the control method that a kind of mine air-lack takes thermal, specially condensate discharge method,
Idle air initial RH is higher, typically more than 90%.So taking in thermal process, as idle air temperature reduces, have a large amount of
Condensed water separates out and importing shower water increases shower water；Overflow pipe is installed on sedimentation basin, discharges excessive shower water.
The beneficial effects of the utility model are that the device takes hot heat transfer effect by increasing packing, raising idle air, and
Pass through the pressure, temperature, flow of atomizing spray water supply line, and the temperature of idle air, the temperature of shower water, to judge atomization spray
Whether mouth blocks, and whether packing is blocked by mud dirt, and realizes atomizer and leaching by equipment such as by-passing valve, flush water pumps
The flushing of water packing, realization device automatically cleaning, maintain high efficient heat exchanging efficiency.
Certainly, implement any product of the present utility model to it is not absolutely required to reach all the above advantage simultaneously.
Brief description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is the utility model sedimentation basin structural representation.
In figure, 1, idle air air channel, 2, packing, 3, rinse water-distributing device, 4, idle air exhaust port temperatures sensor, 5, mist
Change spray equipment, 6, liquid barrier, 7, rinse spray water supply line, 8, atomizing spray pressure of supply water sensor, 9, atomizing spray supplies
Water ga(u)ge, 10, atomizing spray supply water temperature sensor, 11, atomizing spray water supply line, 12, by-passing valve, 13, source pump
Evaporator, 14, automatic backwashing filter, 15, water circulating pump, 16, flush water pump, 17, overflow pipe, 18, sewer,
19th, sedimentation basin, 20, refill flow meter, 21, moisturizing pipeline, 22, connecting pipe temperature sensor, 23, connection pipe duct, 24, collection
Pond, 25, idle air duct temperature sensor, 26, fluid level control valve.
Embodiment
As Figure 1-Figure 2, a kind of mine air-lack takes thermal, including idle air air channel 1, packing 2, flushing water distribution dress
3, idle air exhaust port temperatures sensor 4, atomizing sprayer 5, liquid barrier 6, rinse spray water supply line 7, atomizing spray is put to supply
Water pressure sensor 8, atomizing spray water supply flow meter 9, atomizing spray supply water temperature sensor 10, atomizing spray water supply line
11st, by-passing valve 12, source pump evaporator 13, automatic backwashing filter 14, water circulating pump 15, flush water pump 16, overflow pipe
Road 17, sewer 18, sedimentation basin 19, refill flow meter 20, moisturizing pipeline 21, connecting pipe temperature sensor 22, communicating pipe
Canal 23, collecting-tank 24, idle air duct temperature sensor 25, fluid level control valve 26.
Idle air air channel 1 includes vertical section and the horizontal segment being connected with each other, and packing 2, rinses water-distributing device 3, atomization spray
Shower device 5, liquid barrier 6 are successively set in vertical section；Rinse water-distributing device 3 and pass through rinse spray water supply line 7 and flushing water
Pump 16 is connected, and flush water pump 16 is connected with sedimentation basin 19, and sedimentation basin 19 is connected by connecting pipe duct 23 with collecting-tank 24, is catchmented
Pond 24 is arranged on horizontal segment.
Atomizing sprayer 5 connects source pump evaporator 13 and by-passing valve respectively by atomizing spray water supply line 11
12, source pump evaporator 13 and by-passing valve 12 are all connected with automatic backwashing filter 14, and automatic backwashing filter 14 connects
Water circulating pump 15, water circulating pump 15 connect sedimentation basin 19.
There are moisturizing pipeline 21 and overflow pipe 17 on sedimentation basin 19, sewer 18 is arranged on the lower section of overflow pipe 17.
Sedimentation basin 19 is 2, and 1 is in stand-by state, and 1 in running order.
Water circulating pump 15 is 2, and 1 is in stand-by state, and 1 in running order.
Automatic backwashing filter 14 is 2 sets, and 1 set is in stand-by state, and 1 set in running order.
The atomizing spray water supply line 11 is provided with atomizing spray pressure of supply water sensor 8, atomizing spray water supply flow
Meter 9 and atomizing spray supply water temperature sensor 10.
Tube Temperature Sensor 22 is communicated with the connection pipe duct 23.
Idle air duct temperature sensor 25 is provided with the horizontal segment in the idle air air channel 1.
The vertical section top idle air exhaust port temperatures sensor 4 in the idle air air channel 1.
Refill flow meter 20 is housed in the moisturizing pipeline 21.
Moisturizing pipeline 21 is provided with Liquid level valve 26.
An example is set forth below, further illustrates the atomizing sprayer judgment of clogging and purging method of the present embodiment.
Idle air takes thermal, and the parameter from nozzle is：Spray flux：0.5m3/ h, injection drop：0.15MPa, nozzle are total
Quantity is 200.
Calculate the C under nozzle standard condition0Value：
Set reference value C1, C2, take C1=1.05C0=15.75, C2=1.5C0=22.5.
It is 300kPa, flow F to detect current atomizing spray water pipe pressure P1For 102m3/h.Calculate C
C ＞ C2, so needing to rinse.
Start the water circulating pump of stand-by state, close source pump, open by-passing valve.System stable operation is for a period of time
Afterwards, it is 400KPa, flow F to detect atomizing spray water pipe pressure P1For 160m3/ h, C is calculated,
C ＜ C1, so closing the water circulating pump of stand-by state, by-passing valve is closed, starts source pump, system nozzle rinses
Finish.
An example is set forth below, further illustrates the dirty stifled judgement of the present embodiment packing and purging method.
Spray collects coolant-temperature gage t in design conditions lower communicating tube road10For 15 DEG C, atomizing spray supply water temperature t20For 10 DEG C,
Idle air initial temperature T10For 25 DEG C, idle air exhaust port temperatures T20For 16 DEG C.
Calculate k0,
Set reference value k1, take k1=0.8k0=0.5108.
In actual motion, spray collects coolant-temperature gage t in detection connecting pipe1For 13 DEG C, atomizing spray supply water temperature t2For 8
DEG C, idle air initial temperature T1For 25 DEG C, idle air exhaust port temperatures T2For 16 DEG C, then
Detect obtained k≤k1, illustrate that packing is dirty stifled, start flush water pump and be rinsed；Rinse 10~30 minutes
Afterwards, flush water pump stops.
Idle air flow：
Idle air is taken inside thermal from idle air air channel 1 into idle air.Control idle air take the wind speed inside thermal 3~
8m/s.Water drop contact under being drenched first with packing 2, inside packing 2, and on the gap of packing 2
Moisture film contact continues to exchange heat.After leaving packing 2, the aerosol droplets that idle air sprays with atomizing sprayer 5 contact, depth heat
Exchange, subsequently into liquid barrier 6, row arrives environment after filtering the drop carried secretly with the wind.
Shower water flow：
The spray that water circulating pump 15 is extracted after purification from sedimentation basin 19 collects water, through the secondary purifying of automatic backwashing filter 14
Change, into source pump evaporator 13.If being now in the atomizing sprayer nozzle rinse stage, by-passing valve 12 is opened.
Evaporator with heat pump 13 extracts the heat of shower water, and the shower water after cooling enters atomizing spray water supply line 11, is delivered to atomization
Spray equipment 5.Atomizing sprayer 5 sprays 0.5~2.5mm drops.For the drop less than 0.5mm, there is what is discharged with the wind
May, now intercepted by liquid barrier 6, and formed in the bottom of liquid barrier 6 under big drop leaching.For the liquid more than 0.5mm
Drop, and idle air are fully exchanged heat, and finally drench under gravity into packing 2, and new moisture film is formed in packing 2, after
The heat exchange of continuous and idle air.Finally in the bottom of packing 2, shower water converges into collecting-tank 24, and collecting-tank 24 is again by connecting pipe duct
Shower water is delivered to the precipitation purification of sedimentation basin 19 by 23.
Rinse Water flow-path：
When judging that the mud dirt of packing 2 is more, start flush water pump 16.Flush water pump 16 is fetched water from sedimentation basin 19,
Enter through rinse spray water supply line 7 and rinse water-distributing device 3.Because flow through current increase, packing 2 adhere to mud dirt be washed to
Collecting-tank 24, finally precipitated in sedimentation basin 19.
The utility model is not limited to above-mentioned embodiment, and anyone should learn what is made under enlightenment of the present utility model
There is same or like technical scheme with the utility model, each fall within the scope of protection of the utility model.
Technology that the utility model is not described in detail, shape, construction part are known technology.
Claims (10)
1. a kind of mine air-lack takes thermal, it is characterized in that, including packing, rinse water-distributing device, atomizing sprayer, gear
Liquid plate, rinse spray water supply line, flush water pump, sedimentation basin, connection pipe duct, collecting-tank, atomizing spray water supply line, heat pump machine
Group evaporator, by-passing valve, automatic backwashing filter, water circulating pump；Idle air air channel includes the vertical section and level being connected with each other
Section, packing rinse water-distributing device, atomizing sprayer, and liquid barrier is successively set in vertical section；Water-distributing device is rinsed to lead to
Cross rinse spray water supply line to be connected with flush water pump, flush water pump is connected with sedimentation basin, and sedimentation basin is by connecting pipe duct and collection
Pond connects, and collecting-tank is arranged on horizontal segment；Atomizing sprayer connects source pump respectively by atomizing spray water supply line
Evaporator and by-passing valve, source pump evaporator and by-passing valve are all connected with automatic backwashing filter, automatic backwashing filter
Connect water circulating pump, water circulating pump connection sedimentation basin.
2. mine air-lack as claimed in claim 1 takes thermal, it is characterized in that, sedimentation basin is provided with overflow pipe, sewer
It is arranged on below overflow pipe.
3. mine air-lack as claimed in claim 1 takes thermal, it is characterized in that, sedimentation basin is 2, and 1 is in stand-by state,
1 in running order；Water circulating pump is 2, and 1 is in stand-by state, and 1 in running order；Automatic back flush filtration
Device is 2 sets, and 1 set is in stand-by state, and 1 set in running order.
4. mine air-lack as claimed in claim 1 takes thermal, it is characterized in that, the atomizing spray water supply line is provided with mist
Change spray pressure of supply water sensor, atomizing spray water supply flow meter and atomizing spray supply water temperature sensor.
5. mine air-lack as claimed in claim 1 takes thermal, it is characterized in that, it is provided with the horizontal segment in the idle air air channel weary
Wind duct temperature sensor；The vertical section top idle air exhaust port temperatures sensor in the idle air air channel.
6. mine air-lack as claimed in claim 1 takes thermal, it is characterized in that, sedimentation basin is provided with moisturizing pipeline.
7. mine air-lack as claimed in claim 6 takes thermal, it is characterized in that, refill flow is housed in the moisturizing pipeline
Meter.
8. mine air-lack as claimed in claim 6 takes thermal, it is characterized in that, moisturizing pipeline is provided with Liquid level valve.
9. mine air-lack as claimed in claim 1 takes thermal, it is characterized in that, it is communicated with pipeline temperature on the connection pipe duct
Spend sensor.
10. mine air-lack as claimed in claim 1 takes thermal, it is characterized in that, the atomizing sprayer mouth spray is upward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721086195.1U CN207180460U (en) | 2017-08-29 | 2017-08-29 | A kind of mine air-lack takes thermal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721086195.1U CN207180460U (en) | 2017-08-29 | 2017-08-29 | A kind of mine air-lack takes thermal |
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| Publication Number | Publication Date |
|---|---|
| CN207180460U true CN207180460U (en) | 2018-04-03 |
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ID=61738306
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| CN201721086195.1U Active CN207180460U (en) | 2017-08-29 | 2017-08-29 | A kind of mine air-lack takes thermal |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314702A (en) * | 2017-08-29 | 2017-11-03 | 山东诺德能源科技有限公司 | A kind of mine air-lack takes thermal and control method |
| CN109356634A (en) * | 2018-08-17 | 2019-02-19 | 河北工程大学 | A kind of mine for air exhaustion waste heat depth extraction device |
-
2017
- 2017-08-29 CN CN201721086195.1U patent/CN207180460U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314702A (en) * | 2017-08-29 | 2017-11-03 | 山东诺德能源科技有限公司 | A kind of mine air-lack takes thermal and control method |
| CN107314702B (en) * | 2017-08-29 | 2023-05-12 | 山东诺德能源科技有限公司 | Mine ventilation air methane heat-taking device and control method |
| CN109356634A (en) * | 2018-08-17 | 2019-02-19 | 河北工程大学 | A kind of mine for air exhaustion waste heat depth extraction device |
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