So erhöhen Sie den Kesseldruck?

Einführung

There are various reasons why boiler pressure needs to be increased. In diesem Artikel, we will discuss the most common reasons that boilers require additional pressure and how you can increase it.

Why is boiler pressure important?

Boiler pressure is important because it controls the amount of heat produced and lost, as well as the flow rate through your system. A higher boiler pressure means that more steam will be generated, which increases your efficiency and reduces energy costs.

Boiler pressure also affects how much water is used in each cycle of operation. If you have a high-pressure boiler system, there will be less loss due to evaporation during heating cycles compared with lower-pressure systems (um 10% less).

What causes low boiler pressure?

The Low Water Level in the Boiler

One of the fundamental reasons for low boiler pressure is the inadequate water level within the system. Dies kann durch Verdunstung im Laufe der Zeit oder durch unsachgemäße Befüllung während der Installation oder Wartung verursacht werden. Unzureichende Wasserstände können zu einer verringerten Wärmeübertragungseffizienz und einer möglichen Überhitzung von Komponenten führen, was zu Druckverlusten führt.

Undichter Kessel

Ein undichter Boiler kann zum Verlust von Wasser aus dem System führen, was zu einem Druckabfall führt. Aufgrund beschädigter Komponenten kann es zu Undichtigkeiten kommen, beschädigte Dichtungen, oder Korrosion im Laufe der Zeit. Diese Lecks können klein und zunächst schwer zu erkennen sein, gradually reducing the pressure in the system.

Leaking Pressure Relief Valve

The function of the pressure relief valve is to release excess pressure and prevent the boiler from being over-pressurized. Jedoch, a malfunctioning valve can lead to continuous pressure loss. If this valve is leaking, it might not effectively maintain the desired pressure level.

Leaking Boiler Feed Pump

Das boiler feed pump is mainly responsible for keeping the water level in the boiler within a safe range. If this pump is leaking, it can lead to inadequate water supply and subsequently low boiler pressure. Leaks can stem from damaged components or worn-out seals.

Faulty Boiler Pressure Gauge

A malfunctioning pressure gauge can provide inaccurate readings, leading to an incorrect perception of the actual boiler pressure. This can result in unnecessary adjustments and potential pressure drops.

High Ambient Temperature

In warmer weather, the ambient temperature can affect the pressure reading in your boiler. Higher temperatures can cause the water to expand, resulting in increased pressure. Jedoch, this isn’t a cause for concern as long as the pressure remains within safe limits.

What is the correct pressure for my boiler?

The pressure in your boiler is measured in pounds per square inch (psi). The more water you have and the hotter it gets, the higher the pressure will be. The correct pressure should be between 15 und 22 PSI.

How to top up the pressure on a boiler?

If you need to increase the pressure in your boiler, follow these ways:

Verwenden Sie die richtige Menge Wasser. Der Zweck eines Boilers besteht darin, Wasser zu erhitzen, Sie müssen also sicherstellen, dass ausreichend davon vorhanden ist. Wenn nicht, Fügen Sie mehr hinzu, bis Sie einen Punkt erreichen, an dem zwischen den einzelnen Blasen oben und unten gleich viel Platz ist. Das bedeutet, dass alle Teile effizient genutzt werden!

Überprüfen Sie Ihr Manometer regelmäßig, um sicherzustellen, dass alles ordnungsgemäß funktioniert. Wenn nicht, passen Sie es entsprechend an, bis alles wieder gut aussieht (Dies könnte bedeuten, mehr Kohle nachzufüllen oder einige Regler herunterzudrehen).

Make sure that nothing else needs replacing before doing anything else. Such as changing out old parts or adding new ones.

Last, you need to ensure that you’re not over-pressurizing it. The best way to do this is by using a pressure relief valve.

What to do if the boiler does not repressurize?

If the boiler doesn’t repressurize, you can follow these ways. Identify the root cause of the problem and ensure your boiler is back to optimal performance.

Call a Professional

If you find that your boiler is not repressurizing despite your efforts, it’s advisable to call a professional boiler technician. They have the expertise and tools to diagnose the issue accurately and recommend the appropriate solution.

Check for Boiler Leaks

Leaks within the boiler system can result in a drop in pressure. Follow these steps to check for leaks:

a. Inspect visible components: Carefully examine the boiler and its connections for any signs of water leakage. Such as damp spots, puddles, or visible water trails.

b. Monitor pressure changes: If the pressure drops significantly shortly after repressurizing. it might indicate a hidden leak within the system.

Check the Pressure Gauge

a. Compare readings: Use a reliable pressure measuring tool to compare the reading on the boiler’s pressure gauge. If there’s a significant discrepancy, the gauge might be faulty.

b. Consider replacement: If the pressure gauge consistently shows incorrect readings, consider replacing it with a new, accurate gauge.

Ensure Proper Pressure Relief Valve Function

The pressure relief valve is essential for preventing over-pressurization. Make sure it’s working correctly:

a. Observe the valve: The pressure relief valve should release small amounts of water during operation. If water is continuously dripping from the valve, it might be malfunctioning.

b. Test the valve: Consult your boiler’s manual for instructions on how to test the pressure relief valve’s functionality. Follow the provided procedure to ensure it’s operating as intended.

FAQs.

Is low boiler pressure dangerous?

Low boiler pressure can be a concern as it might indicate leaks, system inefficiencies, or malfunctions. While not necessarily dangerous, it can lead to reduced performance and potentially cause damage if not addressed promptly.

What PSI should a boiler run at?

The recommended pressure range for most boilers is around 1 zu 1.5 bars when cold. This corresponds roughly to 15 zu 22 PSI.

Does low boiler pressure affect hot water?

Ja, low boiler pressure can affect the hot water supply. In some cases, it might lead to reduced hot water output or inconsistent water temperature.

Can I increase the boiler pressure when hot?

It’s generally not recommended to adjust the boiler pressure when the system is hot. Boiler pressure adjustments should be made when the system is cold to ensure accurate readings and safe operation.

Can I fix the boiler pressure myself?

Minor adjustments to boiler pressure can be done by homeowners, but more complex issues should be addressed by a professional boiler technician to ensure safety and proper diagnosis.

What should boiler pressure be when the heating is off?

When the heating system is off, the pressure gauge is typically around 1 zu 1.5 bars (15 zu 22 PSI), but exact values may vary depending on the specific boiler model and manufacturer.

Fazit

With a little bit of knowledge and the right tools, you can increase boiler pressure easily. It’s important to understand that not all boilers require the same amount of pressure.

About Dabonn

Zhengzhou Dabonn Energy Co., GmbH.

Wir haben mehr als 20 jahrelange Erfahrung im Kesselsystemgeräteforschung und -entwicklung und -herstellung. Und verpflichtet sich, Kessel zu entwerfen und zu produzieren, die Ihren Bedürfnissen entsprechen, including fire-tube, Wasserrohr, und Dampfkessel, while also staying up-to-date with the latest technological boiler.