FILLING DEVICE FOR FILLING A CONTAINER TO BE FILLED WITH A FILLING PRODUCT IN A FILLING PRODUCT FILLING PLANT

Abstract

The invention relates to a filling device for filling a container to be filled with a filling product in a filling product filling plant, comprising at least one filling valve for dosing the filling product into the container that is to be filled, as well as a sterilization device for sterilizing at least a portion of the at least one filling valve, wherein a contactless temperature sensor is provided for contactlessly measuring the temperature of the filling valve.

Claims

1. A filing device for filling a container to be filled with a filling product in a filling product filling plant, the filing device comprising: at least one filling valve configured to dose the filling product into the container that is to be filled; a sterilization device configured to sterilize at least a portion of the at least one filling valve; and a contactless temperature sensor configured to contactlessly measure the temperature of the at least one filling valve.

2. The filing device according to claim 1, wherein the contactless temperature sensor is designed in the form of a pyrometer and/or an infrared camera.

3. The filing device according to claim 1, further comprising a clean room, wherein the at least one filling valve includes at least one filling product outlet disposed in the clean room, wherein the contactless temperature sensor is disposed outside the clean room and measures the temperature of the at least one filling product outlet of the at least one filling valve in the clean room.

4. The filing device according to claim 1, further comprising a transport device upon which the at least one filling valve is disposed.

5. The filing device according to claim 1, further comprising a plurality of filling valves that include the at least one filling valve and a plurality of contactless temperature sensors that include the contactless temperature sensor, wherein a number of the plurality of contactless temperature sensors is less than a number of the plurality of filling valves.

6. The filing device according to claim 1, further comprising: a plurality of filling valves that include the at least one filling valve; and a plurality of contactless temperature sensors that include the contactless temperature sensor, wherein the plurality of filling valves are disposed on a transport device, and a separate one of the plurality of contactless temperature sensors is assigned to each one of the plurality of filling valves.

7. The filing device according to claim 1, further comprising a control unit connected with the contactless temperature sensor and the sterilization device, the control unit configured to controls the sterilization of the at least one filling valve by the sterilization device using the temperature of the at least one filling valve that is measured by the contactless temperature sensor.

8. A method for sterilizing at least a portion of at least one filling valve in a filling product filling plant, the method comprising: impinging the at least one filling valve with a sterilization medium during a sterilization process; and contactlessly measuring the temperature of the at least one filling valve during the sterilization process.

9. The method according to claim 8, wherein a filling product outlet of the filling valve is disposed in a clean room, and the temperature of the at least one filling valve is contactlessly measured outside the clean room.

10. The method according to claim 8, wherein the impinging of the at least one filling valve with the sterilization medium is controlled using the contactlessly measured temperature of the at least one filling valve.

11. The method according to claim 8, further comprising opening the at least one filling valve during the sterilization process when the contactlessly measured temperature of the at least one filling valve falls below a specified temperature value.

12. The method according to claim 9, wherein the impinging of the at least one filling valve with the sterilization medium is controlled using the contactlessly measured temperature of the at least one filling valve.

13. The method according to claim 12, further comprising opening the at least one filling valve during the sterilization process when the contactlessly measured temperature of the at least one filling valve falls below a specified temperature value.

14. The method according to claim 9, further comprising opening the at least one filling valve during the sterilization process when the contactlessly measured temperature of the at least one filling valve falls below a specified temperature value.

15. The filing device of claim 4, wherein the transport device is a rotary carousel.

16. The filing device of claim 1, further comprising a plurality of filling valves that include the at least filling valve that are displaceable relative to the contactless temperature sensor, wherein the contactless temperature sensor is a single contactless temperature sensor that is configured to contactless measure the temperature of each of the plurality of filling valves.

17. The filing device of claim 16, further comprising a transport device configured to move the plurality of filling valves pass the contactless temperature sensor, wherein the contactless temperature sensor is configured to contactlessly measure the temperature of each of the plurality of filling valves as each of the plurality of filling valves move pass the contactless temperature sensor.

18. The filing device of claim 3, further comprising a transport device upon which the at least one filling valve is disposed.

19. The filing device according to claim 3, further comprising a control unit connected with the contactless temperature sensor and the sterilization device, the control unit configured to control the sterilization of the at least one filling valve by the sterilization device using the temperature of the at least one filling valve that is measured by the contactless temperature sensor.

20. The filing device according to claim 5, further comprising a control unit connected with the plurality of contactless temperature sensors and the sterilization device, the control unit configured to control the sterilization of the plurality of filling valves by the sterilization device using the temperature of the plurality of filling valves that are measured by the plurality of contactless temperature sensors.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0042] Preferred further embodiments of the invention are more fully explained by the description below of the figures. The figures show:

[0043] FIG. 1 a schematic sectional view of a filling device for filling a container to be filled with a filling product in a filling product filling plant; and

[0044] FIG. 2 a schematic detailed sectional view of a filling valve of a filling device for filling a container to be filled with a filling product, in an alternative embodiment.

DETAILED DESCRIPTION OF EXAMPLES OF PREFERRED EMBODIMENTS

[0045] Examples of preferred embodiments are described below with the aid of the figures. In the figures, elements which are identical or similar, or have identical effects, are designated with identical reference signs. In order to avoid redundancy, repeated description of these elements is in part dispensed with.

[0046] FIG. 1 shows schematically a sectional view of a filling device 1 for filling a container to be filled with a filling product in a filling product filling plant. The filling device 1 is designed as a rotary device, and has a rotatable carousel 4 and a stationary part 9 that is stationary relative to the rotary carousel 4.

[0047] A clean room 8 is also provided, in which the container is filled with the filling product in a controlled atmosphere. The clean room 8 is enclosed, or formed, by a clean room cover 80 which is formed on the rotary carousel 4 and by clean room walls (which are not shown in the figures).

[0048] A plurality of filling valves 2 are disposed on the periphery of the rotary carousel 4, in order to produce in the filling product filling plant a continuous stream of filled containers on the rotary carousel 4.

[0049] The filling valves 2 pass through the clean room cover 80 such that only their filling product outlet 26 and filling valve base piece 6 issue into the clean room 8. The filling valve base piece 6 can alternatively be designed as a centering bell if containers are filled while pressed on.

[0050] A plurality of container receptacles 5 are disposed beneath the filling valves 2 to accommodate the containers that are to be filled, with one container receptacle 5 assigned to each filling valve 2. Each filling valve 2 is connected via a product supply line 3 with a medium distributor. Via the medium distributor (which is not shown here), the filling product is supplied from a product reservoir and a treatment medium in the form of superheated steam is supplied from a sterilization device.

[0051] Above its filling product outlet 26, in the interior 28 of the valve, each filling valve 2 has a valve cone 22, which is displaceable in the direction of the longitudinal axis of the filling valve 2, and can be lowered into a valve seat 20 in a sealing manner in order to close the filling valve 2. To open the filling valve 2, the valve cone 22 is lifted out of the valve seat 20, such that between the valve cone 22 and the valve seat 20 an annular gap is formed, through which the filling product or a treatment medium can reach the filling product outlet 26 and discharge therefrom.

[0052] On the stationary part 9, a temperature sensor 7 is disposed, which can determine in a contactless manner the temperature of a filling valve 2 that moves past it. The contactless temperature sensor 7 is provided in a fixed position on the filling device 1. It is positioned such as to measure the temperature of the filling valve 2 on an exterior face 24 of the filling valve 2 in the region of the valve cone 20.

[0053] The contactless temperature sensor 7 is configured such that it can determine the temperature of, in each case, one of the plurality of filling valves 2 as they move past the contactless temperature sensor 7. In other words, the contactless temperature sensor 7 can distinguish between the temperatures of the individual filling valves 2. The contactless temperature sensor 7 is thereby capable of successively measuring the individual temperatures of each of the filling valves 2 that are moved past it as the rotary carousel 4 rotates.

[0054] The contactless temperature sensor 7 is further connected with a control and/or regulation unit (not shown in the figures), by means of which the treatment, for example the sterilization, of the filling valves 2 can be controlled and/or regulated, and by means of which the temperature of the filling valves 2 can be monitored.

[0055] The contactless temperature sensor 7 is designed, for example, as an infrared camera. Alternatively, it can be designed as a pyrometer or in the form of a different type of contactless temperature sensor.

[0056] For the purpose of cleaning or thermal sterilization of the filling valves 2, steam is supplied via the product supply lines 3 to the filling valves 2. In order to achieve adequate impingement of the contact surfaces of the valve cone 22 and the valve seat 20, the filling valves 2 are preferably initially held in an open position. In order to keep the consumption of sterilization steam as low as possible, the filling valve 2 is subsequently partially or fully closed, so that the sterilization steam is primarily present in the valve interior 28. Alternatively, a cover or sterilization cap can be disposed in front of the filling product outlet 26, in order to achieve a defined volume flow of the sterilization medium.

[0057] If the contactlessly measured temperature value of a particular filling valve 2 falls below a specified temperature value, the applicable filling valve 2 is opened so that any condensate that may have arisen due to the fall in temperature is discharged from the valve interior 28, and fresh superheated steam is supplied to heat the filling valve 2.

[0058] It has proved to be particularly advantageous to alternately open and close the filling valve 2, wherein the intervals at which the filling valve 2 is switched are based on the measured temperature values, and are hence temperature-dependent. Thus treatment medium is only discharged via the opened filling valve when this is necessary in order to heat the filling valve 2 and/or discharge condensate. In this manner, the consumption of treatment medium can be reduced.

[0059] FIG. 2 shows schematically a detailed sectional view of a filling valve 2 of a filling device 1 for filling a container to be filled with a filling product, in an alternative embodiment. The filling device 1 that is shown here corresponds substantially to that shown in FIG. 1. In contrast to the filling device 1 shown in FIG. 1, however, in the embodiment shown in FIG. 2 a contactless temperature sensor 7 is disposed on each of the plurality of filling valves 2. The temperature sensors 7 are thus provided on the rotating part, i.e. on the rotary carousel 4.

[0060] In this embodiment, the contactless temperature sensors 7 are designed as pyrometers. Alternatively, other types of contactless temperature sensor can also be used.

[0061] The filling valve 2 is designed such that the contactless temperature sensor 7 measures the temperature of the filling valve 2 in the area of the valve seat 20, on an exterior face 24 of the filling valve 2. The measuring beam of the pyrometer is indicated by the reference sign 70.

[0062] To the extent applicable, all individual features that are described in the individual example embodiments can be combined with each other and/or exchanged, without departing from the field of the invention.

LIST OF REFERENCE SIGNS

[0063] 1 filling device for filling a container to be filled with a filling product

[0064] 2 filling valve

[0065] 20 valve seat

[0066] 22 valve cone

[0067] 24 exterior face

[0068] 26 filling product outlet

[0069] 28 valve interior

[0070] 3 product supply line

[0071] 4 rotary carousel

[0072] 5 container receptacle

[0073] 6 filling valve base piece

[0074] 7 contactless temperature sensor

[0075] 70 measuring beam

[0076] 8 clean room

[0077] 80 clean room cover

[0078] 9 stationary part