Industrial Engineering Flat Plate Solar Collector

The engineering-grade flat-plate collector, a flagship product of SOLETKS Group's new energy expertise, is a high-efficiency thermal solution specifically engineered for hot water supply and centralized heating systems. Designed with the core concept of "multi-unit series compatibility and customizable scale," it precisely matches collector quantities to different projects' hot water demands and heating areas. This effectively addresses the common challenge of "scale mismatch and cost control difficulties" in large-scale engineering projects. With its core advantages of low cost, easy installation, and long service life, it has become the preferred thermal solution for industrial applications.

Core advantages of the product: Four dimensions to build engineering-level thermal energy guarantee

1. Pressure operation: suitable for engineering high pressure conditions, stable and risk-free

Unlike conventional civilian solar collectors that operate at low pressure and are limited to small-scale applications, SOLETKS's engineering-grade flat-plate collector features a fully metal pressure-resistant chamber structure. This innovative design allows direct integration with centralized water/heating supply networks, eliminating the need for additional pressure stabilizers. Even under high-pressure conditions such as mid-to-late morning/evening peak water usage in large residential complexes or 24/7 continuous heating in hospitals, it maintains stable operation. This design effectively prevents risks like water leakage and pipe bursts caused by pressure fluctuations, thereby ensuring the system's fundamental safety and durability from the outset.

2. Support customization: flexible to adapt to different engineering needs

According to the "personalized needs" of different projects, Shengtuoke provides full-process customization services:

• Scale customization: according to the "daily hot water consumption" or "heating area" of the project, the number of collectors can be accurately matched through the heat calculation model to avoid the problems of "excess equipment waste cost" or "insufficient equipment to meet the demand";

• Interface customization: according to the interface specifications of the existing pipe network in the project (such as DN50, DN80, etc.), the inlet and outlet size of the collector can be customized, without additional pipe network modification, reducing the installation cost of the project;

3. High efficiency thermal energy: multi-dimensional design to improve thermal efficiency and reduce energy consumption costs

Through technological innovation, Shengtuo has improved the thermal efficiency of the collector to the industry leading level:

• Thermal efficiency rate: The instantaneous thermal efficiency of the equipment can reach up to 0.79, which means that under the same light conditions, more solar energy can be absorbed and converted into heat energy;

• Low temperature thermal efficiency advantage: even in cloudy, cloudy and other weak light environment, the equipment can still maintain more than 65% thermal efficiency, solving the limitation of ordinary collector "relying on the weather", especially suitable for the rainy south and the lack of light in winter in northern China;

• Heat loss control: through the optimization of insulation structure and sealing process, the heat loss rate of equipment is less than 5% (the industry average is about 8%), reducing heat waste, and further reducing the energy cost of the project.

Application scenarios: covering five core engineering fields

1. Large residential communities: meet the hot water and heating needs of thousands of households

In view of the characteristics of "high population density and concentrated water/heating time" in large residential communities, Shengtuoke engineering special flat plate collector can be connected in series to form a "centralized thermal energy supply system" to meet the needs of hot water supply and winter heating.

2. Schools and hospitals: ensuring a high level of safety and stability in the supply of heat

• School scene: In view of the characteristics of "concentrated water use time (such as after self-study) and high frequency of use" in student dormitories, the collector system can realize "peak heat storage", absorbing solar energy during the day and storing heat energy, and supplying hot water at night;

• Hospital scenario: The hospital has high requirements for hot water. Shengtuo collector is equipped with "intelligent temperature control system", which can intelligently control the outlet temperature according to the water temperature, so as to meet the centralized hot water demand of the hospital.

3. Industrial enterprises: Reduce the cost of industrial heat and help green production

Factories such as textile mills and food processing plants require substantial amounts of "high-temperature hot water" during production processes, including dyeing in textile mills and cleaning in food factories. Traditional methods like electric or gas heating are costly and energy-intensive. SOLETKS Engineering's specialized flat-plate collector system offers a solution through "large-scale series connections," providing industrial heat supply that significantly reduces energy costs for factories.

4. Greenhouse: precise temperature control, improve the efficiency of crop planting

Greenhouses in northern regions require "constant temperature heating" during winter. Traditional coal-fired heating methods not only pollute the environment but also suffer from significant temperature fluctuations. Shengtuo's solar collectors can be integrated with greenhouse floor heating or hot air systems. These collectors absorb solar energy during daylight hours to store thermal energy, then gradually release it through insulation systems at night. This process maintains greenhouse temperatures within ±2℃, while preventing harmful gases from coal combustion from affecting crop growth and boosting yields.

Technical features of the product: Four details design to consolidate the engineering quality

1. High performance selective absorption coating: high efficiency of heat absorption, durable

The selective absorption coating prepared by vacuum magnetron sputtering technology has two core advantages:

• High heat absorption rate: the absorption rate of sunlight is more than 95%, can quickly convert solar energy into heat energy, even in the morning and evening when the light intensity is weak, it can also absorb heat efficiently;

2. High quality glass cover: high light transmittance, impact resistance, protect the core inside

Using low iron cloth tempered glass as the collector cover plate, compared with ordinary glass has three advantages:

• High light transmittance: iron content is less than 0.015%, solar light transmittance reaches 92%, reduce light refraction loss, more solar energy into the collector interior;

• Impact resistance: after toughening treatment, the impact resistance is more than 5 times that of ordinary glass, which can withstand hail (within 50mm in diameter) and falling objects from high altitude (such as roof leaves and small stones), so as to avoid equipment damage caused by broken cover plate;

• Anti-glare design: the fabric surface can reduce the reflection of sunlight, avoid "light pollution" to surrounding residents or buildings, especially suitable for installation in residential areas, schools and other densely populated areas.

3. Insulation chamber design: integrated structure, lower heat loss

• Seamless insulation: the insulation material is completely attached to the collector chamber, without joint gap, and the heat energy loss rate can be controlled within 5%;

4. Simple and labor-saving installation: reduce the construction cost and shorten the construction period

In view of the characteristics of "tight installation cycle and difficult construction" of the project, Shengtuo collector has made multiple optimization in installation design:

• Modular splicing: the collector adopts standardized interface, and two workers can complete the installation of a single unit, improving the installation efficiency by 40%;

• Flexible adaptation to the scene: support roof laying, wall installation, ground bracket installation and other ways, without large-scale renovation of the building structure, such as roof installation, only need to fix the bracket, will not damage the roof waterproof layer;

• Fast debugging: the equipment has completed pre-debugging before leaving the factory, and only needs to connect the pipe network and start the control system after on-site installation, which greatly shortens the project duration.

Product Parameter ：

Why choose SOLETKS?

1. 15 years of engineering experience: better understanding of "pain points and needs" in engineering

Since 2008, SOLETKS has been dedicated to engineering-grade thermal energy equipment, establishing a comprehensive service system spanning "demand analysis → solution design → installation and commissioning → post-service maintenance". Unlike industry players that merely provide equipment without implementation support, SOLETKS delivers customized solutions tailored to each project's specific conditions including regional climate, building structure, and operational scenarios.

2. Independent research and development of the whole industry chain: controllable quality and leading technology

Shengtuoke has an "independent production line for core components of heat collectors (plate core, coating, flow channel and pipe valve)", with more than 60 quality tests from raw material procurement to finished product delivery.

3. Customized solution capability: Provide "customized exclusive solutions"

Shengtuoke has a "engineering scheme design team", whose members have more than 5 years of experience in the field of engineering thermal energy. According to the "region, scenario and demand" of the project, we can provide customized services from "thermal energy calculation→ equipment selection→ installation planning→ later operation and maintenance".

4. Project implementation guarantee capability: from "scheme" to "implementation", the whole process is controllable

In order to ensure the smooth implementation of the project, SOLETKS has established a "project full cycle management system" to ensure the quality of project installation.

Q&A

Q1: What is a split-type solar water heater?

A1: A split-type solar water heater is a system where the solar energy-collecting component and the water-storing tank are designed as two separate parts. This separated structure offers greater flexibility when it comes to installation—for instance, the collector can be mounted on a roof while the tank is placed indoors. It also integrates more smoothly with various building styles and delivers enhanced operational performance in areas with cold climates.

Q2: What are the advantages of flat plate solar collectors?

A2: Flat plate solar collectors come with several notable benefits: they are economical in terms of cost, have a long service life, and require minimal effort for upkeep. They work effectively across diverse climate conditions, making them a great choice for both household hot water needs and commercial hot water supply setups.

Q3: How does the system work on cloudy days or at night?

A3: To guarantee that hot water is constantly available even when the sky is cloudy or during nighttime hours, the system is normally outfitted with an additional electric heating device or a backup heating mechanism. These components kick in when solar energy is insufficient, ensuring an uninterrupted supply.

Q4: Can the system be used in cold regions?

A4: Absolutely. Our split-type solar water heater system features a special anti-freezing design and utilizes glycol circulation technology. These elements enable the system to operate reliably even when temperatures drop to freezing levels.

Q5: What is the typical lifespan of a flat plate solar water heater?

A5: When a flat plate solar water heater is installed correctly and receives regular maintenance, it can remain functional for more than 15 to 20 years.