JP3676494B2 - Wiring and piping connection structure to the oscillating and rotating spray retort sterilizer - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a oscillating rotary spray type that heats and sterilizes a product in which contents such as foods and pharmaceuticals are hermetically filled in containers (pouches, cans, bottles, etc.) in a retort cycle process of heating, heating, and cooling. It relates to the wiring and piping connection structure to the retort sterilizer.
[0002]
[Prior art]
Conventionally, a spray retort sterilizer has been provided for this type of heat sterilization treatment. This spray-type retort sterilizer stacks a plurality of trays on which products are placed and stores them in a sterilization tank, and sprays / spouts hot water or steam etc. from spray nozzles arranged toward the gap between the trays. The product is cooled by spraying cooling water from a spray nozzle (see Japanese Utility Model Publication No. 3-3197).
[0003]
The spray-type retort sterilizer performs a heat sterilization process by placing the product horizontally in a sterilization tank, and therefore has a low effect of promoting heat transfer to the contents in the container. In particular, when a high-viscosity liquid is contained in a large container, the temperature change at the center is significantly slowed down. In such a case, since the heat sterilization treatment needs to be performed on the entire contents, it is necessary to continue spraying / spouting hot water etc. from the spray nozzle until the temperature of the center reaches the target value, and the treatment time It was long.
[0004]
In order to increase the heat transfer promotion effect to the contents in the container and shorten the sterilization treatment time, the present applicant oscillates the tray on which the product is placed and the spray nozzle in the sterilization tank. The contents inside are moved (flowed) to the left and right in the container, promoting the replacement of the center part with the surface layer part and the peripheral part, and enhancing the heat transfer promoting effect to the entire contents so as to shorten the sterilization processing time. (See Japanese Patent Application No. 8-27806 and Japanese Patent Application No. 8-27808).
[0005]
However, when implementing the above-mentioned proposal, it is necessary to swing the spray nozzle disposed toward the gap between the tray and the tray on which the product in the conventional spray-type retort sterilizer is placed, in the sterilization tank, In addition to measures against twisting of piping that supplies hot water and cooling water from the outside, a new member is required to hold the tray during swinging and an air piping to operate this tray holding member. A countermeasure is required, and a temperature detection sensor is installed to accurately and quickly complete the sterilization of the product placed on each tray. Countermeasures against twisting of the electrical wiring to this sensor are required. It was.
[0006]
[Problems to be solved by the invention]
In the above proposal, it is described that the piping to the spray nozzle is simply performed by a rotary joint, but the structure to perform the air piping to the tray holding member and the electrical wiring to the sensor is described. This time, we propose this structure.
[0007]
An object of the present invention is an oscillating rotary spray retort sterilizer that can connect an electric wiring, a liquid pipe, and an air pipe from the outside of the sterilization tank to the rotating body that is rotatably installed in the sterilization tank. It is to provide a wiring and piping connection structure.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention is a spray in which a plurality of trays on which products are placed are stacked and accommodated on a rotating body rotatably installed in a sterilization tank, and arranged toward a gap between the trays. After spraying / spouting hot water or steam from the nozzle to heat sterilize the product, spray the cooling water from the spray nozzle to cool the product and swing the rotating body and spray nozzle during the heat sterilization and cooling process. In a rotating rotating spray retort sterilizer that rotates,
In the sterilization layer, a temperature detection sensor for detecting the temperature of the sterilization treatment and a tray pressing member for pressing the tray being peristalized are provided, and the rotation center axis of the rotating body arranged through the sterilization tank inside and outside large, medium, together to such a triple tube structure of small, electric wiring passage and without for passing electrical wiring space formed inside the small pipe to the temperature sensor, is formed between the mutually middle and small tube pipe An air passage for operating a tray holding member that holds the tray while the space is formed between the middle pipe and the large pipe while the space is formed as a liquid passage for passing hot water, steam, or cooling water through the space. Thus , the electric wiring from the temperature detection sensor is connected to the external electric equipment through the slip ring outside the sterilization tank, and the air passage and the liquid passage are outside the sterilization tank. Rotary joint It is obtained without so as to connect to an external air supply and discharge means and the external fluid supply and discharge means via.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1A is a side view showing a schematic structure of an oscillating rotary spray retort sterilizer targeted by the present invention, FIG. 1B is a left end view thereof, 1 is a sterilization tank, 2 is a rotation Body, 3 is a tray, 4 is a header pipe, 5 is a spray nozzle, 6 is a rotation center shaft, 7 is a rotary joint, 8 is a slip ring, 9 is a swing rotation imparting means, 10 is a swing rotation transmission member, 11 is A bearing, 12 is an external electric device, 13 is an external air supply / discharge means, and 14 is an external liquid supply / discharge means.
[0010]
The sterilization tank 1 has a cylindrical shape that is fixedly supported on the base 15 in a horizontal state, and one end (left end) of the sterilization tank 1 is an open end for loading and unloading the tray 3 on which the product is placed. Is provided with an openable / closable lid (not shown), the other end (right end) is a closed end, and the bottom plate 1a is fixed.
[0011]
The rotating body 2 includes a plurality of disc frames 2a arranged at appropriate intervals in the depth direction of the sterilization tank 1, and a plurality of connecting rods 2b that connect the disc frames 2a around the disc frame 2a. The disk frame 2a is rotatably installed and supported in the sterilization tank 1, and is oscillated and rotated from the oscillating rotation applying means 9 through the oscillating rotation transmitting member 10 and the rotation center shaft 6. It is done. The swing rotation imparting means 9 includes a motor 9a and a speed reducer 9b, and these are supported by a bearing base 9c. The oscillating rotation transmitting member 10 exemplifies a gear.
[0012]
The tray 3 is for placing the product in a state where it can be easily sterilized. The tray 3 is loaded on the cart 2c of the rotator 2 in a state of being stacked in a plurality of stages, and is put in and out of the rotator 2 and the sterilization tank 1 through the cart 2c.
[0013]
The header pipe 4 is disposed on both sides of the rotator 2 over substantially the entire length of the sterilization tank 1 in the depth direction, and is supported by each disk frame 2 a of the rotator 2.
[0014]
The spray nozzle 5 is appropriately branched from the header pipe 4 and supported by using the disk frame 2a and the connecting rod 2b of the rotating body 2.
[0015]
The rotation center shaft 6 is schematically shown in FIG. 2, and as shown in detail in FIG. 3, the large pipe 6a, the middle pipe 6b, and the small pipe 6c are concentrically accommodated in this order from the outside to the inside. is a is a triple tube structure, in a space formed between the tubes each other, the electric wire channel 16, the liquid passage 17 and air passage 18 are made form independently. That is, the large pipe 6a is integrated with the middle pipe 6b to form an air passage 18 therebetween, and the middle pipe 6b is integrated with the small pipe 6c to form a liquid passage 17 therebetween, and further inside the small pipe 6c. An electrical wiring passage 16 is formed in the upper part. The large pipe 6a is installed by penetrating the bottom plate 1a of the sterilization tank 1 in and out on the rotation axis of the rotating body 2, and a seal device 19 is attached to the penetrating portion, and the sterilization tank 1 of the large pipe 6a is installed. The disk frame 2a of the rotating body 2 is connected to the inner end of the sterilization member, and is rotatably supported by the bearing 11 outside the sterilization tank 1, and the swinging rotation transmitting member 10 is connected. The large pipe 6a and the middle pipe 6b are equipped with a rotary joint 7 at the outer end of the sterilization tank 1, and the rotary joint 7 is connected to a liquid passage 17 and an air passage 18 , respectively. An inlet 17a and an air inlet 18a are installed, and an external liquid supply / discharge means 14 and an external air supply / discharge means 13 shown in FIG. 1 are connected to these via appropriate piping.
[0016]
The small pipe 6c is an electric wiring passage 16 to a temperature detection sensor installed in the sterilization tank 1, and an inlet 16a of the electric wiring passage 16 is formed at an outer end of the sterilization tank 1. A slip ring 8 is attached to the inlet 16a, and the slip ring 8 is appropriately connected to an external electric device 12 such as a temperature detection display recording device including a power source. An outlet 16b of the electric wiring passage 16 is formed at the inner end of the small tube 6c, and the electric wiring from the outlet 16b to the temperature detection sensor is led out. Although the temperature detection sensor is omitted in the drawing, the temperature detection sensor is installed at an appropriate position of the rotating body 2 in the sterilization tank 1 so as to detect the same sterilization treatment condition as that of the product.
[0017]
A liquid outlet 17b communicating with the liquid passage 17 is formed at the inner end of the sterilization tank 1 of the intermediate pipe 6b. The liquid outlet 17b is mounted on the rotating body 2 via the flexible pipe 4a. A header pipe 4 is connected.
[0018]
In addition, an air outlet 18b communicating with the air passage 18 is formed at the inner end of the sterilization tank 1 of the large pipe 6a, and a tray holding member (illustrated) provided in the rotating body 2 is formed in the air outlet 18b. The air piping 20 is appropriately connected.
[0019]
As shown in FIG. 3, the large pipe 6a is configured to be thicker than other pipes as a hollow rotating shaft for transmitting rotational force from the outside of the sterilization tank 1 to the rotating body 2, and this large pipe 6a. A housing 7a of the rotary joint 7 is rotatably mounted on the outer end of the sterilization tank 1 through bearings 7b and 7b. A liquid inlet 17a and an air inlet 18a are formed in the housing 7a, and the liquid inlet 17a and Annular grooves 7c and 7d are formed on the inner peripheral surface of the housing 7a corresponding to the air inlet 18a, and a communication hole 17c communicating with the liquid passage 17 and the air passage 18 is connected to the large pipe 6a corresponding to the annular grooves 7c and 7d. , 18c are appropriately formed. Then, seal packing 7e is appropriately mounted on both sides and the middle of the annular grooves 7c and 7d. By doing in this way, since two types of rotary joints, liquid and air, are formed in the housing 7a of one rotary joint 7, the complexity of the structure can be avoided and the structure can be simplified. The cross-sectional areas of the liquid passage 17 and the air passage 18 can be changed by appropriately selecting the pipe diameter according to the target flow rate or the like. The positional relationship between the two annular grooves 7c and 7d formed in the housing 7a of the rotary joint 7 is an annular passage communicating with an air inlet 18a of the air passage 18 in the present embodiment, that is, a passage outside the triple pipe structure. The groove 7d is disposed on the side close to the sterilization tank 1, and an intermediate passage, that is, an annular groove 7c communicating with the liquid inlet 17a of the liquid passage 17 in this embodiment is disposed on the side far from the sterilization tank 1. And the annular step part 6d and 6e which fit and mount the edge part of the middle pipe 6b and the small pipe 6c in the edge part of the side far from the sterilization tank 1 of the large pipe 6a, ie, an outer end inner diameter surface, are formed. In this case, the annular step portion 6d that fits and attaches the end portion of the intermediate tube 6b extends from the position of the communication hole 18c of the air passage 18 that is on the outside to the position where the communication hole 17c of the liquid passage 17 that is in the middle is formed. Are formed between the air passage 18 and the liquid passage in the middle by inserting and fitting the end portion of the intermediate tube 6b to the formation position of the annular step portion 6d through a seal packing. 17, that is, air and liquid can be supplied to the two independent passages from the two inlets 18a and 17a formed in the housing 7a of the single rotary joint 7 in a simple manner, avoiding complicated connection structures. It can be a structure.
[0020]
Further, the outer end portion of the small pipe 6c is fitted and supported in an airtight manner via the bush 6f on the annular step portion 6e of the large pipe 6a. The inner end of the small tube 6c is fitted and supported in an airtight manner via an end plate 6g at the inner end of the middle tube 6b via a bush 6h. The relationship between the inner end of the large pipe 6a and the inner end of the middle pipe 6b is as shown in FIG. 3, in which an annular flange 6i is formed at the inner end of the large pipe 6a. An annular flange 6j is fixed to the outer peripheral surface near the inner end of the pipe 6b, and an annular ferrule joint clip 6m is fitted on both the annular flanges 6i and 6j with a seal packing 6k interposed between the both annular flanges 6i and 6j. The annular ferrule joint clip 6m is caulked and sealed and secured.
[0021]
Although FIG. 3 illustrates the case where the large pipe 6a is divided into two parts for convenience of processing, it may be configured as a series. Moreover, although the bearing 11 in FIG. 3 has illustrated the case where it is set as the structure which also supports the baseplate 1a of the sterilization tank 1, it is not limited to this.
[0022]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to this invention, it can connect to the rotary body rotatably installed in a sterilization tank, without twisting an electrical wiring, liquid piping, and air piping from the outside of a sterilization tank. Thus, by continuously spraying hot water or cold water into the gap between the trays accommodated and held in the rotating body, it is possible to always supply hot water or cold water to the product while the rotating body is rotating. Applying it to a dynamic rotation type spray retort sterilizer, it exhibits remarkable effects.
[Brief description of the drawings]
FIG. 1A is a side view showing a schematic structure of an oscillating rotary spray retort sterilizer targeted by the present invention, and FIG. 1B is a left end view thereof.
FIG. 2 is a longitudinal side view showing an outline of a main part of the present invention.
FIG. 3 is a longitudinal side view showing details of a main part of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Sterilization tank 2 Rotating body 3 Tray 4 Header pipe 5 Spray nozzle 6 Rotation center shaft 7 Rotary joint 8 Slip ring 9 Oscillation rotation imparting means 10 Oscillation rotation transmission means 11 Bearing 12 External electric equipment 13 External air supply / discharge means 14 External Liquid supply / discharge means 16 Electric wiring passage 17 Liquid passage 18 Air passage

Claims (1)

Multiple trays on which products are placed are stored in a rotating body that is rotatably installed in the sterilization tank, and hot water or steam is sprayed and ejected from spray nozzles that are placed toward the gap between the trays. After the product is sterilized by heating, the product is cooled by spraying cooling water from the spray nozzle, and in the oscillating rotation type spray retort sterilizer that oscillates and rotates the rotating body and the spray nozzle during the above heat sterilization and cooling process,
In the sterilization layer, a temperature detection sensor for detecting the temperature of the sterilization treatment and a tray pressing member for pressing the tray being peristalized are provided, and the rotation center axis of the rotating body arranged through the sterilization tank inside and outside large, medium, together to such a triple tube structure of small, electric wiring passage and without for passing electrical wiring space formed inside the small pipe to the temperature sensor, is formed between the mutually middle and small tube pipe An air passage for operating a tray holding member that holds the tray while the space is formed between the middle pipe and the large pipe while the space is formed as a liquid passage for passing hot water, steam, or cooling water through the space. Thus , the electric wiring from the temperature detection sensor is connected to the external electric equipment through the slip ring outside the sterilization tank, and the air passage and the liquid passage are outside the sterilization tank. Rotary joint Wiring and piping connection structure to swing the rotary spray type retort sterilizer, characterized in that none so as to connect to an external air supply and discharge means and the external fluid supply and discharge means via.

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