How to Size a Solar Water Pumping?

In this blog post we’re going to show you how to size and determine the various basic components that make up a submersible solar water pumping system:

Solar powered submersible pump that goes in your well
Holding tank or cistern to store a reserve of water
Solar panel array to power the pump
Linear current booster that optimizes the power from the solar panels to the pump
Booster pump to increase the pressure of the water to usable household levels (if your cistern isn’t high enough)

This blog posting will covering solar pumping systems where you are drawing water from a well and not where the source of the water is a pond, lake, river etc.

When determining what pump(s) to get, you need to evaluate your pumping needs. How much water a day do you need, how many days of storage, how high and far does it need to be pumped, and what is the source? Seventy five Gallons per day (GPD) per person is common for domestic use. Your local weather patterns will help determine the amount of storage; do you have long stretches without sun, or is it only an occasional cloudy day?

Related reading:solar water pumping   Submersible Solar Water Pump


Solar Water Pumping: Using Solar to Power your Well Pump


Any renewable energy source can make the electricity you need to power appliances, including pumps.  Solar electric cells convert sunlight into DC electricity that can be routed directly to DC appliances, or can be stored in batteries for use when the sun is not shining, or can be inverted into AC electricity to power AC appliances.

Solar well pumping generally refers to the use of sunlight to power pumps, while the sun is shining.   These are simple systems that do not incorporate batteries for storing electricity.  In essence, the water tank or cistern acts as storage.  If you can pump water fast enough and your cistern is big enough, then you do not need to pump during the night or during cloudy days.

Batteries are generally not necessary in remote water pumping situations, as long as your system is sized properly and you have enough water flow from the water source.

Is solar water pumping economically feasible?
The reliability and economy of solar electric power make it an excellent choice for powering remote water pumping.  Cattle ranchers all over the world are enthusiastic solar pump users.  Their water sources are often spread over many miles of rangeland where utility power is not accessible and where refueling and maintenance costs are high for generator use.

If your water source is more than 1/3 mile from utility power, solar is a favorable economic choice.  This fact is substantiated by a number of rural electric cooperatives across the U.S.  These co-ops actively promote use of solar pumps because the cost to extend new power lines is prohibitive.

Where do solar pumping systems work?
Solar panels should be located in a sunny spot where no shading occurs.  Altitude is not a factor, but height off the ground will affect whether or not you are able to keep them clear of snow.

Panels should be angled optimally for solar gain, particularly during the shorter winter days.  If your site is in the northern hemisphere you should point your panels to true south.  The reverse is true for places in the southern hemisphere.  For many locations there is quite a difference between magnetic south and true south, so you should consult a declination map before setting your mounting structure.

The solar panels should be tiled up from horizontal to get a better angle at the sun and to help shed rain and snow.  For best year round power output, with the least amount of maintenance, you should face the solar panel(s) true south at a tilt angle equal to your latitude with respect to the horizontal position.

If you are able to adjust the solar panel seasonally, a good rule of thumb is:

  • Latitude minus 15 degrees in the summer
  • Latitude in the spring/fall
  • Latitude plus 15 degrees in the winter

China Polyester Superplasticizer Market Overview

According to QYResearch Construction and Chemical Research Center recently released China polycarboxylate water-reducing agent investigation report concluded that concrete admixtures developed very fast after 2000. Currently updated third generation: lignin – naphthalene – polycarboxylic acid. Polycarboxylate water-reducing agent is a kind of new water-soluble polymer material with comb-like structure composed of polyether monomer with different molecular weight and various kinds of unsaturated carboxylic acid, sulfonic acid and amide monomer, so that the concrete has Good fluidity and thixotropy make the complex concrete construction process becomes simple and easy. Polycarboxylate water-reducing agent free of formaldehyde, ammonia and other harmful substances, the production process of environmental protection, environmental pollution, on behalf of the most advanced technology of concrete admixture products, concrete admixtures in the replacement products.

At present, polycarboxylate superplasticizer is divided into polyester (MPEG) and polyether (APEG / TPEG) two categories, polyether type PCE water reducing agent appears later, but from the beginning of 2008 production, application began, By the end of 2010 the market of polyether type PCE water-reducing agent has more than 50%, the development is very rapid, mainly due to polyether superplasticizer processing is simple, stable performance, relatively low technical requirements, application promotion and other factors contributed.

In the superplasticizer industry boom, polycarboxylate water-reducing agent production stability, sustained and rapid rise. In 2005, the domestic polycarboxylate water-reducing agent annual output of only 50,000 tons, to its output in 2009 has reached 1.2683 million tons, an increase of more than 24 times. At present, many large-scale projects, such as the Qinghai-Tibet Railway, the Hangzhou Bay Bridge, the Beijing Olympic Stadium Museum Project, the Three Gorges Project, the Capital International Airport expansion project, the Soviet Union, the development of large-scale high-speed railway construction, Through the large-scale use of polycarboxylate water-reducing agent, polycarboxylate water-reducing agent is gradually replacing the traditional naphthalene-based water-reducing agent products, as a water reduction The mainstream of the market. At the same time, polycarboxylate water-reducing agent is also facing the bottleneck of technological innovation.

As a new generation of high-performance additives, polycarboxylate water-reducing agent in the application of the railway project is increasing, the current large-scale high-speed railway construction all require the use of polycarboxylate water reducing agent. Since October 2012, the Ministry of Railways has been on the water-reducing agent production enterprises to certification. According to China’s concrete network statistics, as of May 10, 2016, a total of 134 water-reducing agent production enterprises through the railway water-reducing agent product certification and product certification. The list of the top ten enterprises, there have been nine companies through the Ministry of Railways certification. The promotion of railway projects for the production and application of polycarboxylic acid has accumulated rich experience, but also for the comprehensive development of the market laid the foundation.

At present, the industry concentration is very low, workshop a lot of business, and some do the synthesis, and some only complex. With the popularity of room temperature technology, industry access threshold is also getting lower and lower. Product homogeneity more and more serious. However, such enterprises are not the level of technical strength, quality control is different. In particular, the stability of the product at room temperature is often weak. But for some of the product requirements are not high, the price is very sensitive to the concrete business, but also barely enough. After 2015, trapped in the domestic economic downturn, the terminal market downturn, upstream production capacity and other unfavorable factors, polycarboxylate water-reducing agent business in the last year’s general sales decline, half of the enterprise in 2015 polycarboxylate water-reducing agent Sales have declined. But in the case of the overall economic downturn last year, as a polycarboxylate superplastic agent rookie business, Jiangsu, China Railway Ao Leite against the wind, to achieve a steady growth in sales, among the top ten list. Domestic commodity concrete market is saturated, but the subway and highway, marine concrete is still in high-speed construction, while industry net profit is low (only about 10%), some small workshops business face with great pressure, the industry is also facing Re-shuffle the situation. However, foreign markets, especially other countries in Asia and Africa are high-speed construction period, there is a big potential for development, so the export of water-reducing agent business there are still many opportunities.

Related reading: Phenixin Market Professional Survey Report Industrial Coil Coatings Market Report

New Great Opportunity Come To Forklift Attachment Industry In China

China National Bureau of Statistics released statistics data on April 17 “The national economy continues steady progress, good development trend,and increasing positive changes since the second half of last year, the main indicators are better than what expected before, this is a good start, and lay the solid foundation for the completion of the annual development target.”

The gross domestic product (GDP) of the first quarter was 1,868.3 billion Chinese yuan, rise up 6.9% from comparable prices.”

Sales data of mobile industrial vehicle industry from January-March shows that: total sales quantity is 118979 units, the year-on-year growth rate up to 34.85%.

This good situation is mainly due to the stabilization of the economy rebounded, significantly faster growth of manufacturing, transportation and other heavy forklift truck users .

The growth of forklift market is the direct embodiment for professional needs expand and deepen of the domestic material handling market. As a forklift material handling function personalized professional tools, forklift attachment with the same surge in demand, the domestic forklift attachment market has reached an unprecedented active period. This is a great opportunity for HEZE, and also a challenge.

Related reading: Forklift Mechanical Attachments Forklift Hydraulic Attachments

H Beam Shot Blasting Machine

Main Technical Parameters of H Beam Shot Blasting Machine

  1. Room entrance (mm): 1200 * 2000 (WxH);
  2. Cleaning degree: GB8923-88 A-B       Sa 2.5
  3. Working speed: 0.5-4m/min (frequency controlled)
  4. Shot blasting head: 4 sets

Model: QS350

Wheel disc diameter: φ350mm

Speed: 2900r/min

Max. blasting capacity: 8 * 300kg/min

Power: 8 * 11kw

  1. Elevator

Quantity: 1 set

Elevating capacity: 150t/h

Power: 7.5kw

  1. Transverse Screw conveyor

Quantity: 1 set

Conveying capacity: 150t/h

Power: 4kw

  1. Longitudinal Screw conveyor

Quantity: 1 set

Conveying capacity: 150t/h

Power: 5.5kw

  1. Roller conveying system

Quantity: 1 set

Rolling space: 1000mm

Roller length: 12000mm

Roller working width: 1200mm

Power: 4kw

  1. First input quantity of steel shots: 8000kg, Dia.1.0-2.0mm
  2. Air volume: 19840m³/h
  3. Dust collector

Model: LT-24

Filter quantity: 24 sets

Fan power: 15kw

  1. Total power: about 124kw

Related reading: roller conveyor shot blasting machine h beam shot blast machine