With the exquisite techniques, innovative crafts and large scale production line, Hicap Closrues provides clients with high quality packaging closures and services,not only strengthening the pilfer proof function, but also make the whole packaging to be more premium.
Wine Screwcaps (30x60, 31.5x60, 30x44, 25x43, Tin Saran liner, Saranex liner)
Hicap Closures Wine screwcaps have been adopted by leading wine manufacturers in many coutries due to the benefits they offer with respect to traditional corks: they have no impact on the organoleptic qualities of the wine, avoiding oxidation and the so-called `cork taint`.
The wine lasts longer over time and its delicate balance does not change when transported.
Hicap Closures screwcaps make the bottle easier to open and to re-seal, maintaining the quality and the taste of the wine for longer. The screwcaps can be personalised with a variety of decoration techniques to meet the customer`s brand and marketing requirements.
Spirits Closures (33x57, 33x47, 31.5x44, 31.5x50, 28x38, 30x60, 28x18, 36x52 etc.)
Hicap Closures is the world leader in the production of non-refillable closures and in anti-counterfeiting technologies, with 10 billion closures sold each year.
Technological innovation has provided spirits manufacturers with packaging solutions that make the counterfeiting of packaging increasingly difficult, enabling them to protect their brand image.
Current solutions encompass an infinite number of non-refillable pourers with different levels of protection; non-refillable valve systems and tamper-evident systems.
We are able to design totally customised closures in an infinite range of colours, shapes, sizes and materials to meet the needs of customers and to enhance brand image.
Oil and Water Closures (31.5x24, 31.5x44 safety closures)
Hicap Closures provides a diversified range of caps, both short and long, with pourers that have been specifically designed for the viscosity of the oil, with a view to enabling perfect pouring, as well as anti-drip devices to avoid the drips that could form when pouring is interrupted.
Non Refillable Closures Bottle Caps,Snap On Closures,Twist Off Closures Yantai Hicap Closures Co., Ltd. , https://www.hicapclosure.com
Self-operated flow control valve and the regulator in series to achieve high-level direct heating
Abstract: This article presents a novel heating method that utilizes a self-operated flow control valve in conjunction with a pressure regulating valve to achieve both direct and indirect heating at different levels within a building. The system incorporates key components such as a pressure pump, check valve, automatic air vent, deaerator, self-regulating flow control valve, and pressure regulator. Among these, the check valve, self-flow control valve, and pressure regulator are considered the core elements of the system.
Keywords: Self-operated flow control valve, Pressure regulating valve, Direct heating
With the continuous growth of the national economy, high-rise buildings have become increasingly common across various regions. For heating these structures, several traditional methods are currently used. One approach involves setting up an independent boiler and piping system for each high-rise building, which is reliable but costly in terms of initial investment and operational expenses. Another method uses a single heat exchanger, isolating the high and low zones, which requires a high-temperature water or steam source and may not be economically efficient. Using a low-temperature water system for heating often results in poor thermal performance. A third option involves a two-tank system, where large insulated tanks are installed, increasing project costs and causing oxygen corrosion due to elevated dissolved oxygen levels in the circulating water. Additionally, repeated circulation through the tanks leads to significant heat loss.
In an article published in the "Gas and Heat" journal in 2005, it was mentioned that when the pressure inside an energy release device increases, the water level rises, and the excess water is automatically drained through a siphon pipe into the lower reservoir to prevent overpressure. However, this method results in the waste of valuable water resources, especially since the water undergoes softening, deaeration, and heating before being used.
This article introduces a more efficient solution using a self-operated flow control valve and a pressure regulator connected in series, enabling direct heating for both high and low floors. The system includes a pressure pump, check valve, automatic air vent, deaerator, self-flow control valve, and pressure regulating valve. The check valve, self-flow control valve, and pressure regulator are particularly critical in ensuring the system’s efficiency and safety.
To ensure safe and effective direct heating between high and low zones, several challenges must be addressed: First, the high-pressure pump must supply the correct pressure head without causing excessive pressure that could lead to water withdrawal. Second, the high zone must not transfer pressure to the low zone during operation or shutdown, preventing overpressure in the low zone. Third, the hot water system must be properly filled without any air pockets.
The self-operated flow control valve ensures a constant flow rate in the system while eliminating excess pressure head, maintaining stable operation. The pressure regulating valve maintains a set pressure level, automatically closing when the pressure exceeds the threshold to stabilize the system. During operation, the high-pressure pump sends water from the low zone to the high zone, and the flow control valve prevents water withdrawal in the low zone. It also reduces the pressure of the circulating water in the high zone to a safe level, ensuring the low zone operates safely.
When the system is shut down, the static pressure in the high zone causes water to flow back toward the low zone. However, the check valve prevents this by closing, and the pressure regulating valve automatically shuts off if the pressure in the low zone rises above the set value, keeping the return water contained in the high zone.
Through the coordinated operation of the pressure pump, check valve, self-flow control valve, and pressure regulating valve, a new direct heating system has been developed for high and low-rise buildings. This method allows for direct heating without altering the original operating mode, parameters, or conditions of the heating system. Only a few cost-effective devices need to be added, enabling independent pressure control between the high and low zones. Compared to previous solutions, this approach offers simplicity, economic efficiency, and practicality.