Custom made diesel HPU’s

Custom made diesel HPU’s

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

Our client was in need of multiple hydraulic power units for the opening and closing of shut-off valves. The HPUs must meet customer specifications, be user-friendly and as compact as possible. Additionally, all components must be easily accessible for future maintenance.

Muns Techniek solution

To meet customer specifications, we designed an HPU with a simple three-cylinder diesel engine. The HPU is easy to connect to the intended valves using the supplied hydraulic hoses.

The HPU has simple controls, which allows the user to open or close the intended valves without much effort. 

During use, the control panel also clearly displays the status of the HPU. This gives the user a good overview.

Result

The HPUs are
fully designed and assembled at our workshop in Sleeuwijk. They have been thoroughly
tested to ensure they meet the customer specifications.

Dredger repair

A tank before and after cleaning and damage repair

Dredger repair

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

During operation, our customer’s dredger had sustained major damage and was in need of repair. The damage resulted in a flooded pumproom and severely affected hydraulics and controls. Muns Techniek was approached to repair and, where needed, revise the hydraulic parts of the system.

Hydraulics removed from the vessel for cleaning and repair
Hydraulics after they have been cleaned and repaired

Muns Techniek solution

The flooded pumproom was cleared of major hydraulic components. These components were transported to our workshop and thoroughly checked and tested. If possible, components were repaired. Components that were not fixable, and components that had to be replaced because of revision of the system, were replaced.  

In addition to the repair of the hydraulics, the hydraulic piping has also been replaced at the request of the customer.

Result

The system has been completely repaired and revised and the hydraulics have been restored to good working condition. The steel hydraulic piping has been replaced by stainless steel piping. Muns Techniek has rerouted the piping and moved it from the floor to the walls

Stainless steel hydraulic piping, rerouted and replacing original steel piping

A-Frames

Testing of A-frames

A-Frames

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

The customer’s vessel is equipped with two A-frames, each with two cylinders to move the individual legs of the frame. Our customer requested a solution to reduce the tension on the frame when the frame is moving.

Testing van de A-frames

Muns Techniek solution

To reduce the tension, both frames were equipped with equalizing valves. These valves reduce the speed of either cylinder when necessary. This keeps the frames straight and reduces tensions that would occur due to a difference in cylinder extension. The system is equipped with sensors. The feedback from these sensors is used to continuously correct the speed of the individual cylinders as necessary.

Result

The system works automatically, using the feedback from the sensors installed in this installation. The user can customize the settings of the system, allowing the user to set the limits and to a point control how the system should react to a difference in cylinder extension.

Subsea bomb detection

sensor of a subsea bomb detector

Subsea bomb detection

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

In some waters it is not uncommon to find explosives in the soil. This can be a major problem for dredgers. Our customer asked our assistance to develop a system that was capable of finding these explosives, using a subsea magnetometer.

sensor of a subsea bomb detector
Control panel for winches

Muns Techniek solution

For this to work, the sensor will have to be near the soil at all times. This means that the sensor will have to be lifted and lowered depending on the changing water depth as the vessel moves along. Our engineers developed the hydraulic system and appurtenant controls to keep the sensor in the right position.

Result

The system is using winches to lower and raise the sensor into the water. Subsequently the sensor remains in the right position to search for bombs in the soil.

Winch moving the sensor up and down, following the seabed

Muns Operating System, HMI Software

Operating panel running Muns Operating System

Muns Operating System, HMI Software

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

In many of our previous projects that included software control and an HMI (Human Machine Interface), we ran into limitations of the HMI software. Often what we wanted to implement was either very difficult, or just not possible.

Additionally, when a customer wanted something added to their system, it happened that the software licence had to be upgraded. The additions would cause the HMI to exceed the limit of the current licence.

Control panel using our own HMI software
Examples of software developed by Muns Techniek for different purposes
Gathered data is combined with the survey data and displayed on screen

Muns Techniek solution

To ensure we did not have such issues in the future, our software engineers developed our own HMI software, the Muns Operating System software. Because the development is done in-house, we have complete control over the possibilities and extension of the software.

Benefits: Innovation

The advantage of our own software is that besides including the standard functionality of an HMI software, the software itself has been more specifically designed for our own systems. In addition, it allows us to add new functions when necessary.

Because the software is developed in-house, other software developed by our engines, such as the survey chart software, can easily be integrated. This ensures that the integrated software becomes a part of the HMI, instead of just a stand-alone program that is called upon by the HMI.

Check this Case: Integration survey data

Result

This new software has now been installed in a number of our more recent projects. During  the commissioning of the systems, the software has been thoroughly tested. This ensures that the HMIs of these systems are easy to use and work as intended.

Check this Case: Modified Tensile tester
Check this Case: Jack-up system for a working platform
Display using the Muns Operating System

Moonpool

Manifold and accumulator for the moonpool cylinders

Moonpool

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

During the modifcation of an existing vessel a moonpool was incorperated in the ship. For the opening and closing of the moonpool doors, the customer wanted hydraulic cylinders and a appurtenant manifold. The cylinders and the manifold had to be easy to connect to the existing hydraulic system.

Hydraulic cylinders for moonpool doors
Manifold and accumulator for the moonpool cylinders

Muns Techniek solution

Muns Techniek designed the cylinders and the manifold completely  according to the specifications of the customer. The manifold has the possibility to close the moonpool in an emergency situation. In order to make this possible, an hydraulic accumulator was included into the system.

Result

The manifold and cylinders have been tested extensively in our workshop by connecting them to the control cabinet of the customer. The system reacted as it should and cylinders can be moved according the commands issued by the control system.

HPU and Winches

Setup HPU and winches

HPU and Winches

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

Our customer was in need of an HPU to control a number of winches. The customer already had an unused HPU with corresponding control cabinet, and winches that could be used. The HPU had never been used or tested, and the winches and HPU both needed to be revised and modified to fit the intended purpose.

Hydraulic winch before modification
Winch and corresponding HPU after modification

Muns Techniek solution

Our engineers and mechanics overhauled and modified the HPU, and modified and tested the control cabinet. The electro motor of the HPU was replaced with a different one to meet the requirements, and specially developped valve blocks were added. The complete unit was mounted in a container for easy transportation.

The winches were also modified to better align with the requirements. The existing flexible hydraulic hoses were replaced with hard piping and valves.

Benefits: Innovation

As per customer request, the unit was designed in such a way that it can easily be integrated in their existing system. The unit was outfitted with specific hydraulic and electrical connection points for such a purpose. Additionally, a local control box was made that can control four winches separately. This control box easily connects to the outside of the container, if necessary. 

Result

The containerized HPU is now suitable for the intended use. It is capable of controlling up to four winches simultaneously, and it can be connected to the existing system using the included signal cables. The winches can be connected to the HPU through the hydraulic connections on the outside of the container. 

The local control box allows one operator to locally control the winches. Valves on the HPU and the winches allow the operator to use the winches in normal mode or in CT (constant tensioning) mode. 

Setup HPU and Winches

Modified tensile tester

Revised tensile tester control panel

Modified tensile tester

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

Our customer had a functioning tensile tester that was in need of replacement of the HPU and control. The tester had worked for a long time, but started to show its age. With the replacement of the control system, the customer wished to upgrade the system to a more modern version.

Examples of software developed by Muns Techniek for different purposes

Muns Techniek solution

To revise and modernise the HPU and control system, Muns Techniek replaced the existing system using two separate motors that were activated depending on the need with one motor operated by a variable speed drive. The previous components used for the regulation of the system were replaced by a PLC. The control panel has been upgraded to include a touchscreen panel with the Muns Operating System, our own HMI (Human Machine Interface) software.

Benefits: Innovation

The modernising and upgrading of the HPU and electric control has the advantage of making operation more controlled. The inclusion of the touchscreen gives the operator more information of the status and operation of the tensile tester.

Result

The system has been cleaned, modernized and upgraded. It now allows for more versatile operation and has added function, such as allowing for a number of pre-saved settings for different materials, that were previously not available.

Customized winches

Custom made hydraulic winch

Customized winches

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

Our client, a major contractor in the dredging industry, was looking for a winch for her dredging equipment. Everything that was available as standard in the market did not meet his requirements.

op maat gemaakte hydraulische lier

Muns Techniek solution

Muns Techniek was approached and of course a solution was developed. Muns Techniek has also supplied several winches for various applications in the past. Customized and integrated with the hydraulic system that was already installed on board.

Benefits: Innovation

No major adjustments were needed on board, because the winch exactly met the demands of the customer. Full integration with the controls was also included.

Result

Customer was very satisfied, and has since ordered 3 winches from Muns Techniek. The customer realizes that they can entrust their technical challenges to Muns Techniek. Whether it’s a winch or a complete jack-up system, Muns Techniek delivers the solution.

Integration survey data

Gathered data is combined with the survey data and displayed on screen

Integration survey data

Muns Techniek is a system integrator for Hydraulic systems and Electrical controls. With more than 25 years of experience we offer Hydraulic and Electric Solutions for projects in the Maritime, Offshore and Industry.

Customer

Jack-up systems place the legs of a ship at the bottom of the sea. The strength of this soil has been partially mapped by so-called survey companies. The accuracy here is often insufficient, with the risk that the legs sink (too) deep into the seabed. During the positioning of the ship on the seabed, our customer was constantly bothered with necessary manual calculations to ensure the stability of the (standing) ship.

Muns Techniek solution

We were asked to propose a solution for this additional effort and since we saw this as a great challenge, we immediately started creating ideas. The result was a real-time visualization of the forces in the soil with respect to the penetration of the legs into the seabed.

Benefits: Innovation

Since the actual forces relative to the expected bottom strength are shown with a clear visualization, the captain has more certainty about the correct stability of the ship standing high on its legs on the seabed.

Jacking system cylinder displacement is used in combination with the survey data
Gathered data is combined with the survey data and displayed on screen

Result

Peace of mind at the customer because of the “real-time” image, and no more “stressful” calculations to check stability.