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There’s a wheel barrow in my pipeline!

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2 90 ELBLOW

90 Elbow

ข้องอ 90 เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

10 TEE

Tee

3 ทาง เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

6 NIPPLE

Nipple

ท่อเกลียว เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

14 STREET ELBOW

Street Elbow

ตัวข้องอ เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

3 COUPLING

Coupling

ยอย เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

12 ROUND CAP

Round Cap

ฝาครอบเกลียว เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

9 REDUCE SOCKET

Reduce Socket

ข้อต่อลด เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

5 HEX BUSHING

Hex Bushing

ข้อลดเหลี่ยม เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

13 SQUARE PLUG

Square Plug

ปลั๊กอุด เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

15 UNION

Union

ยูเนียน เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

8 REDUCE NIPPLE

Reduce Nipple

ลดเกบียว เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

4 CROSS

Cross

เกลียวกากบาท เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

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17 BALL VALVE 1PC

Ball Valve 1 pc

วาล์ว บอล 1 ชิ้น เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

18 BALL VALVE 2PC

Ball Valve 2 pc

วาล์ว บอล 2 ชิ้น เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

19 BALL VALVE 3PC

Ball Valve 3 pc

วาล์ว บอล 3 ชิ้น เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

20 BALL VALVE 3WAY

Ball Valve 3 way

วาล์ว บอล 3 ทาง เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

26 NEEDLE VALVE

Needle Valve

วาล์วเข็ม เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

21 GATE VALVE

Gate Valve

วาล์วประตู เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

22 GLOBE VALVE

Globe Valve

วาล์วควบคุม เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

24 Y STRAINER VALVE

Y Strainer

ตัวกรอง Y เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

23 SWING CHECK VALVE

Swing Check Valve

ประตูลิ้นกลับ เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

25 SPRING CHECK VALVE

Spring Check Valve

วาล์วปิดกลั้นทางเดียว เกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

Fitting Stainless

ฟิตติ้งสแตนเลส
จำหน่ายฟิตติ้งสแตนเลสเกรดโรงงานอุตสาหกรรม ราคาถูก

Valve Stainless

วาล์วสแตนเลส
จำหน่ายวาล์วสแตนเลส 304 ,316 ราคาส่งโรงงาน

Fitting Brass

ฟิตติ้งทองเหลือง
จำหน่ายฟิตติ้งทองเหลืองราคาส่ง
FITTINGTHAI BRASS PRODUCT
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1 Brass Adapter

Brass Adapter

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

2 Brass Bushing

Brass Bushing

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

3 Brass 90 Elbow

Brass 90 Elbow

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

4 Brass Hose Nipple

Brass Hose Nipple

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

5 Brass Nipple

Brass Nipple

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

6 Brass Reduce Nipple

Brass Reduce Nipple

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

7 Brass Tee

Brass Tee

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

8 Brass Union

Brass Union

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

9 Brass Ball Valve 1pc

Brass Ball Valve 1 pc

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

10 Brass Ball Valve 2pc

Brass Ball Valve 2 pc

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

11 Brass Ball Valve 3pc

Brass Ball Valve 3 pc

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

12 Brass Ball Valve 3way

Brass Ball Valve 3 way

Tee way 3 ทางเกรดอุตสาหกรรม
มีให้เลือกตั้งแต่ 1/8" - 4"

Rob Welke, from Adelaide, South Australia, took an uncommon telephone from an irrigator in the late 1990’s. “Rob”, he stated, “I suppose there’s a wheel barrow in my pipeline. Can you locate it?”
Robert L Welke, Director, Training Manager and Pumping/Hydraulics Consultant
Wheel barrows were used to hold package for reinstating cement lining throughout delicate metal cement lined (MSCL) pipeline development within the old days. It’s not the primary time Rob had heard of a wheel barrow being left in a large pipeline. Legend has it that it occurred during the rehabilitation of the Cobdogla Irrigation Area, close to Barmera, South Australia, in 1980’s. It is also suspected that it might just have been a believable excuse for unaccounted friction losses in a brand new 1000mm trunk main!
Rob agreed to help his client out. A 500mm dia. PVC rising primary delivered recycled water from a pumping station to a reservoir 10km away.
เพรสเชอร์เกจน้ำ was that, after a year in operation, there was a few 10% reduction in pumping output. The client assured me that he had examined the pumps and they were OK. Therefore, it simply had to be a ‘wheel barrow’ in the pipe.
READ: Cheaper irrigation strategies for profitable farming
Rob approached this problem a lot as he had during his time in SA Water, the place he had extensive expertise locating isolated partial blockages in deteriorated Cast iron Cement Lined (CICL) water provide pipelines in the course of the 1980’s.
Recording hydraulic gradients
He recorded accurate stress readings alongside the pipeline at a number of places (at least 10 locations) which had been surveyed to supply correct elevation data. The sum of the strain reading plus the elevation at each point (termed the Peizometric Height) gave the hydraulic head at every level. Plotting the hydraulic heads with chainage gives a a quantity of point hydraulic gradient (HG), very like within the graph beneath.
Hydraulic Grade (HG) blue line from the friction exams indicated a constant gradient, indicating there was no wheel barrow within the pipe. If there was a wheel barrow within the pipe, the HG would be just like the red line, with the wheel barrow between factors three and 4 km. Graph: R Welke
Given that the HG was fairly straight, there was clearly no blockage along the way, which would be evident by a sudden change in slope of the HG at that time.
So, it was figured that the head loss have to be due to a general friction build up within the pipeline. To verify this concept, it was determined to ‘pig’ the pipeline. This concerned utilizing the pumps to drive two foam cylinders, about 5cm bigger than the pipe ID and 70cm lengthy, alongside the pipe from the pump end, exiting into the reservoir.
Two foam pigs emerge from the pipeline. The pipeline performance was improved 10% on account of ‘pigging’. Photo: R Welke
The immediate enchancment in the pipeline friction from pigging was nothing in want of amazing. The system head loss had been virtually completely restored to original efficiency, resulting in about a 10% circulate enchancment from the pump station. So, as a substitute of discovering a wheel barrow, a biofilm was discovered responsible for pipe friction build-up.
Pipeline ENERGY EFFICIENCY
Pipeline efficiency may be at all times be considered from an power effectivity perspective. Below is a graph displaying the biofilm affected (red line) and restored (black line) system curves for the client’s pipeline, before and after pigging.
READ: 5 Factors to assume about when selecting irrigation pump
The enhance in system head as a result of biofilm triggered the pumps not only to function at a higher head, but that a few of the pumping was compelled into peak electrical energy tariff. The reduced performance pipeline in the end accounted for about 15% additional pumping vitality prices.
Not everyone has a 500NB pipeline!
Well, not everybody has a 500mm pipeline in their irrigation system. So how does that relate to the common irrigator?
A new 500NB
System curve (red line) indicates a biofilm build-up. Black line (broken) shows system curve after pigging. Biofilm raised pumping prices by as a lot as 15% in one 12 months. Graph: R Welke
PVC pipe has a Hazen & Williams (H&W) friction worth of about C=155. When decreased to C=140 (10%) through biofilm build-up, the pipe will have the equivalent of a wall roughness of 0.13mm. The similar roughness in an 80mm pipe represents an H&W C worth of 130. That’s a 16% discount in move, or a 32% friction loss enhance for a similar flow! And that’s just in the first year!
Layflat hose can have high vitality value
A case in point was noticed in an power effectivity audit carried out by Tallemenco just lately on a turf farm in NSW. A 200m long 3” layflat pipe delivering water to a gentle hose increase had a head lack of 26m head in contrast with the manufacturers score of 14m for a similar circulate, and with no kinks in the hose! That’s a whopping 85% increase in head loss. Not shocking contemplating that this layflat was transporting algae contaminated river water and lay in the hot solar all summer, breeding those little critters on the pipe inside wall.
Calculated when it comes to power consumption, the layflat hose was responsible for 46% of complete pumping energy costs through its small diameter with biofilm build-up.
Solution is larger pipe
So, what’s the solution? Move to a larger diameter hose. A 3½” hose has a brand new pipe head loss of only 6m/200m at the similar flow, but when that deteriorates due to biofilm, headloss might rise to solely about 10m/200m as a substitute of 26m/200m, kinks and fittings excluded. That’s a possible 28% saving on pumping power costs*. In terms of absolute energy consumption, if pumping 50ML/yr at 30c/kWh, that’s a saving of $950pa, or $10,700 over 10 years.
Note*: The pump impeller would have to be trimmed or a VFD fitted to potentiate the energy financial savings. In some circumstances, the pump could have to be changed out for a lower head pump.
Everyone has a wheel barrow of their pipelines, and it solely will get larger with time. You can’t do away with it, however you can control its effects, both via power environment friendly pipeline design within the first place, or try ‘pigging’ the pipe to eliminate that wheel barrow!!
As for the wheel barrow in Rob’s client’s pipeline, the legend lives on. “He and I nonetheless joke in regards to the ‘wheel barrow’ in the pipeline once we can’t clarify a pipeline headloss”, stated Rob.
Author Rob Welke has been fifty two years in pumping & hydraulics, and by no means offered product in his life! He spent 25 yrs working for SA Water (South Australia) within the late 60’s to 90’s where he performed in depth pumping and pipeline power effectivity monitoring on its 132,000 kW of pumping and pipelines infrastructure. Rob established Tallemenco Pty Ltd (2003), an Independent Pumping and Hydraulics’ Consultancy primarily based in Adelaide, South Australia, serving clients Australia wide.
Rob runs common “Pumping System Master Class” ONLINE coaching courses Internationally to cross on his wealth of knowledge he realized from his 52 years auditing pumping and pipeline techniques all through Australia.
Rob can be contacted on ph +61 414 492 256, www.talle.biz or e mail r.welke@talle.biz . LinkedIn – Robert L Welke
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