Fresh and ready-to-eat salads, vegetable dishes, herbs, and freshly reduce fruit type part of Gartenfrisch Jung GmbH’s product portfolio. The long-established company has advanced into the German market chief for contemporary comfort merchandise because of its high quality and expertise. Since early 2019, the vacuum provide to its tray sealer packaging machines has been exceptionally energy-efficient following the set up of a central vacuum system by Busch Vacuum Solutions.
เกจวัดแรงดันแก๊สlpgรถยนต์ produces its convenience foods in a modern facility in Jagsthausen, a city within the German state of Baden-Württemberg. To allow it to provide fresh uncooked produce all yr round, the corporate has its personal growers in Germany and Portugal. Cultivation in two totally different local weather zones ensures that the complete product vary could be provided year-round, sold to finish users throughout Germany by way of grocery store chains and low cost stores. The ready-to-eat salads are packaged into bowls under the company’s own label, in addition to for third celebration manufacturers. Gartenfrisch Jung’s history dates again to 1795. What began out as a small piece of farmland has now transformed into integrated, controlled growers of salads and greens and another arm for processing these products. As a family business, Gartenfrisch Jung has been passed from one generation to the next ever because it began. The experience gained consequently has due to this fact grown steadily, leading to the company’s successful development and a excessive quality commonplace of its products. Nowadays, Gartenfrisch Jung processes 120 tonnes of uncooked food daily. This is equal to dealing with 2,000 pallets, which are then delivered to clients by 80 refrigerated vehicles.
The ready-to-eat salad dishes (Fig. 1) are packaged on twelve packaging strains with tray sealer packaging machines. In the past, these packaging machines had been outfitted with one rotary vane vacuum pump every, though one machine had two vacuum pumps. These thirteen vacuum pumps had been used to evacuate the trays to the required vacuum stage previous to sealing. A two-shift operation is in place on all twelve packaging strains. The vacuum pumps ran continuously all through these shifts, aside from throughout breaks. During a third shift, the manufacturing amenities are cleaned while all equipment is stationary.
Jochen Neff, who’s in control of technology at Gartenfrisch Jung, was looking for an alternative vacuum supply, as a outcome of the warmth radiated by the 13 vacuum pumps was placing a pressure on the air conditioning system in the production services, that are cooled to between 5 and 6 degrees Celsius. Furthermore, the vacuum pumps had an put in motor output of over 50 kilowatts. The vacuum experts from Busch Vacuum Solutions analyzed the scenario and really helpful a centralized vacuum provide, which could be arrange in a non-air-conditioned room exterior the manufacturing facilities.
Because Jung’s comfort products have the ideal vacuum for packaging at a vacuum stage of 400 millibars, Busch beneficial using MINK claw vacuum pumps. This kind of vacuum pump has the very best effectivity issue out of all mechanical vacuum pumps. This is a results of their contact-free working precept, which signifies that the shifting components contained in the vacuum pump don’t are available contact with one another. In flip, no oil-based lubrication is required and all upkeep work associated to the utilization of oil as an working fluid is eliminated.
Busch designed a vacuum system with three frequency-controlled MINK claw vacuum pumps (Fig. 2), each of which was outfitted with a motor with a nominal motor rating of eight kilowatts. However, one of the three vacuum pumps is exclusively on stand-by. Nevertheless, the management system is programmed to make certain that all three vacuum pumps have the identical number of operating hours.
Centralizing the vacuum supply enabled the whole put in motor rating to be reduced from 50.2 to sixteen kilowatts (Fig. 3) if we assume that two of the vacuum pumps run at 60 Hertz, i.e. most energy. This would correspond to a sixty eight percent reduction in power consumption. However, in apply Jochen Neff has discovered that solely one of many two MINK claw vacuum pumps is generally in use and that this tends to run at a reduced rotational speed. After a quantity of months of use, Jochen Neff has measured common power consumption of 4 kilowatt hours for the entire vacuum supply. This is mainly linked to the fact that the twelve packaging strains do not all all the time run at maximum speed and not the entire machines are in use on a regular basis. The demand-based control system then decreases the rotational pace to reduce the output, meaning that the system only offers the performance that’s actually required. In practice, this equates to vitality financial savings of over ninety percent for vacuum generation.
The new centralized vacuum system was put in in April 2019 and has been in use every since. It is linked to the packaging machines by way of a network of pipelines. Two upstream vacuum vessels with a volume of 1,500 liters each ensure that the required vacuum degree is out there in the packaging chambers as quickly as it’s needed in the packaging cycle. Removing the thirteen original vacuum pumps from the production areas relieved pressure from the air conditioning system. This meant that the air con system might be turned right down to hold the room temperature between 5 and 6 degrees Celsius. The savings in energy costs on account of decreasing the air-con output haven’t been measured. However, it could possibly usually be assumed that the change resulted in a significant reduction within the vitality consumed by the air con system.
Thanks to the vacuum system’s redundant design, maintenance can be carried out on the individual MINK claw vacuum pumps throughout production and packaging. MINK claw vacuum pumps are nearly maintenance-free. Maintenance is proscribed mainly to the annual preventive change in gear oil. This is performed by a Busch service technician. With the centralized vacuum system, Jochen Neff has created a highly energy-efficient, dependable and economical vacuum provide for packaging his convenience products.
Fig: 1: One of twelve strains used to package convenience products on tray sealers
Fig. 2: Vacuum system with three MINK claw vacuum pumps during assembly with the 2 vacuum vessels in the background
Fig. 3: Comparison of energy consumption for a decentralized and centralized vacuum supply
Image rights: Busch Vacuum Solutions
Busch Vacuum Solutions
Global Marketing – Uli Merkle
10 March 2020
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