JPS5851973A - Apparatus for treating liquid - Google Patents

Abstract

PURPOSE:To contrive energy-saving, by providing an automatic flow rate-controlling valve and a by-pass line at the inlets of a heat exchanger and an injector, and controlling their opening rates on the basis of respective control signals when there is liquid to be returned because of an improper temperature for heating pasteurization or the unnecessity of injection so as to supply product liquid in response to a consumed amount. CONSTITUTION:An automatic flow rate-controlling valve phi is opened or closed by a proportional controlling signal Z1 from an injector corresponding to the consumed amount of product liquid, to feed the amount of the product liquid in response to the consumed amount. Another controlling signal Z2 offers a necessary opening rate to an automatic flow rate-controlling valve (g) when either one of automatic three-way changeover valves (l) and (n) switches its passage to a side to return the liquid, and another opening rate to the automatic valve (g) in a manner such that the ejection pressure of a pressurized supply pump (d) is not excessively charged to functional members such as a heat exchanger (h) when the flow rate of the liquid to be supplied to the injector becomes lower than a fixed value. When the opening rate is squeezed, an automatic by-pass valve (f) is opened in response to said squeezing and operated to by-pass the liquid and to maintain the pressure of the product at the primary side of the automatic valve (g) constant.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a liquid processing apparatus for heating and sterilizing liquid such as beverages and sending the liquid to a filling machine.

FIG. 1 is a diagram showing an example of a conventional one, and Ii! The hot product liquid is supplied to the cushion 2 from the product liquid supply inlet 1. The product liquid is applied to the cushion.2. J: The L product liquid is sucked into the pressure pump 4 through the liquid feed/distribution device 6, and is pressurized.The L product liquid passes through the foreign matter separator 5 and flows into the heat killing 1 shoulder 7 of the heat exchanger B.

The temperature indicator/alarm meter 8 detects the width of the product liquid flowing out from the heat sterilization section 7 of the heat exchanger 6, and controls the heat sterilization temperature. in particular.

Heat medium circulation device 160 4111yll-at the same time.

When the detected product liquid temperature (sterilization temperature) is lower than the set lower limit temperature or exceeds 1 degree at the upper corner, the flow path of the three-way switching valve 9 is automatically switched to the liquid return note 13 side. When the sterilization temperature condition (when the sterilization quality is within the range of the lower limit temperature or higher and the upper limit temperature or lower) is satisfied, the three-way switching valve 9 is switched to the normal flow side, and the product liquid is passed through the filter 10.
and the filling machine liquid feed pipe 20 via the second three-way switching valve 11
It is then pumped to the filling machine. The second three-way switching valve 11 is a check valve that switches the product liquid flow path to the liquid return side when there is no liquid consumption in the filling machine or when there is no need to supply product liquid on the filling machine side. 12 and the liquid return pipe 13. The flow path is switched to the side. Product liquid that has been switched to the return side with the first three-way switching valve 9 and whose heat sterilization temperature condition is not 1 minute, or surplus product liquid that has been switched to the return side with the second three-way switching valve 11, should be removed from the liquid return piping. Through.

The return liquid flows into the cooling section 14 of the heat exchanger B. In this return liquid cooling section 14, the product liquid is cooled down to a predetermined temperature or lower using the cooling water supplied from the cooling water supply port 17, and the liquid return piping 19 to the throttle valve 15 and the tank is connected to the liquid return pipe 19. I am trying to return the liquid to RI, 9-Yokota-shiku 2 via RI.

(3) However, the above-mentioned conventional device has the following first-order problem.

For 100% of normal product production operation time.

The operation of the above-mentioned filling machine is repeatedly started and stopped due to container supply or one-on-one output conditions, etc. The operating rate is approximately 8.
It is 5-90%. Therefore, 10% of the total operating time for product production
The time corresponding to ~15% is spent switching to the liquid return side of the product liquid flow path, during which heating time is spent for heating, and cooling water is used to cool the return liquid to almost room temperature. It is extremely uneconomical due to wasted energy and resource consumption.

The present invention has been proposed in view of the above-mentioned fixed points, and its purpose is to solve the problem of cooling water consumption and cooling water consumption. It is an object of the present invention to provide an economical liquid processing device 5 that can significantly reduce costs.

The present invention is based on a pressure-feeding process from the cushion seat.

Heat exchanger for heat sterilization, when the sterilization temperature is different.

(4) The first three-way switching automatic valve switches the flow path to the liquid return side, and when there is no liquid consumption in the filling machine, the second three-way switching valve switches to the flow path Z liquid return side, and then goes to the filling 1 side. In a liquid processing apparatus configured to send a heat-sterilized liquid, when one of the first and second three-way automatic switching valves is switched to the liquid return side, and a filling machine is placed on the inlet side of the heat exchanger. When the flow rate of liquid sent to the C9 filling machine becomes lower than the set liquid level, the first flow rate adjustment automatic valve that adjusts the flow A second flow rate adjustment automatic valve is provided to send liquid according to the amount, and a flow path is provided on the inlet side of the first flow rate adjustment automatic valve to bypass the liquid to the return side according to the opening degree of the boat. It is characterized by

As described above (by providing the first and second flow rate adjustment automatic valves and the bypass flow path, it is possible to feed the liquid according to the liquid dissipation in the filling machine and the backstitching process, and also to control each equipment during operation. In addition, it is possible to prevent abnormal pressure rises in the filling machine, and it is possible to feed liquid according to the amount of liquid consumed by the filling machine, so there is no need for wasted heating energy, and the amount of liquid consumed by the filling machine is kept below the set flow rate. In the event of a summer break or a temporary suspension of operation of the filling machine, the liquid can be bypassed to the return side before entering the heat exchanger, resulting in a significant reduction in heating energy and cooling water. It is extremely economical because it allows
moreover.

This avoids unnecessary heating and cooling.

It should also be possible to prevent the deterioration of liquid quality.

Embodiment 7 of the present invention will be described below based on FIG. 2.

a is unsterilized product liquid supply port, b is cushion tank, C
is the liquid delivery distribution W, a is the unsterilized product liquid pressure port: J''j, e is the foreign matter separator, and the liquid is sent through the pressure port: J to remove foreign substances such as solids in the unsterilized product liquid. f is an automatic bypass valve.

When the flow of the product liquid is throttled by the first automatic flow control valve g, a part of the unkilled product liquid is automatically diverted (bypassed).

The first flow rate adjustment automatic valve g is an automatic valve that automatically adjusts the flow rate of the product liquid depending on the amount of product liquid consumed in the filling machine or the operating state, and opens and closes in response to a signal z2, which will be described later, and its opening degree is determined. h is a heat exchanger, which includes a heat sterilization section 1 for heating and sterilizing unsterilized product liquid, and a return liquid cooling section for cooling insufficiently sterilized product liquid or liquid returned from the filling machine.
:/S. J is heat sterilization with heat exchanger T comb 9
1 is a heat medium circulation device that replenishes heat to heat and sterilize unsterilized product liquids.It has a sterilization temperature indicator and alarm meter that measures the sterilization heating temperature of the product liquid. Up·
A lower limit can be set.

1 is the first three-way switching automatic valve, and if the sterilization temperature 13 (detected by the sterilization temperature indicator and alarm meter) of the product liquid is normal (within the set temperature range), the flow path is switched to the filter m side on the forward flow side. If the sterilization temperature of the product liquid is abnormal (below the lower limit or higher than the set temperature), the valve automatically switches to the liquid return pipe r side on the return side of the flow path.

m is a product liquid filter, n is a second three-way automatic valve, and this second three-way automatic valve +1 is.

When there is product liquid consumption i”t in the filling machine, the second flow rate R+ on the forward flow side, !1-section automatic valve φ side (C switching, when there is no product liquid consumption in the filling machine, the second flow rate R + on the forward flow side, This is an automatic valve that switches to the check valve q side.

The second flow rate adjustment automatic valve φ is an automatic valve that opens and closes according to the product liquid consumption signal fiZi in the filling machine, and its opening degree is determined, and fills the product liquid according to the product liquid consumption in the filling machine. The liquid is sent to the filling machine through the liquid delivery pipe p to the machine. The product liquid that is diverted back to the liquid return pipe r side by the first three-way switching self-exciting valve 1 or the second three-way switching automatic valve n is transported to a predetermined level in the return liquid cooling tank S of the heat exchanger. cooled below temperature.

t is used to limit the flow rate of the returned liquid with a flow rate adjustment box.

■ is the return liquid cooling water supply 1'', W is the automatic flood protection valve, and which of the first three-way automatic valve l or the second three-way automatic valve n is connected to the liquid return piping r side. , only when that flow path is switched.

This is a valve that automatically opens fully.

X is the cooling water flow N control valve, and used cooling water flows out D.
y, J: Diverted to Ridlev or another device.

The return liquid that has been cooled to a predetermined temperature or lower is returned to the cushion tuck b via return distribution #U.

In the above configuration, the heat medium circulation device J is.

The necessary heat medium circulation flow rate is ensured, and the heat medium supply temperature is controlled to the heating membrane 1 of the heat exchanger set to Ji, and the heat medium is sent and circulated.

The unkilled product liquid, which is pumped from the pusher 9 (b) through the pressure separator (e) and the first flow regulating automatic valve (g), enters the heat exchanger and is heated and sterilized. Heated in section i, the first three-way automatic valve 1. fill'
3-m, the second three-way switching automatic valve n, and the second flow rate adjustment automatic valve φ, the liquid is sent to the filling machine.

The valve is opened by a proportional control signal z1 according to the consumption amount of product liquid from the filling machine, and its opening degree is determined, and the amount of product liquid according to the consumption amount is sent. .

Further, the opening degree of the first flow rate adjustment automatic valve g is determined by a signal Z2 that controls its opening degree, and this control signal z2 is controlled by the first three-way automatic valve 1 or the second three-way automatic valve 1. Either one of the pumps -7fn is on the Himeji Kaoru liquid return side, that is, when there is no need to send the liquid to the filling machine, it gives the required opening of the first automatic flow rate adjustment valve g, and at the same time, the liquid is supplied to the filling machine. When the liquid flow rate becomes lower than the set flow rate,
Open the 4-section automatic valve g to prevent the discharge pressure of the pressure feeder from being applied to functional products such as heat exchangers more than necessary. When the opening degree of the first automatic flow rate adjustment valve g is reduced, the automatic bypass valve opens accordingly, bypassing the liquid, and maintaining the primary product pressure of the first automatic flow rate adjustment valve constant. It works like this. This prevents the liquid from stagnation in the foreign matter separation 'ae, and prevents the functional components from the discharge port of the pressure-feeding position d to the primary side of the first automatic flow rate adjustment valve g due to the cut-off pressure of the pressure-feeding position d. In addition to preventing abnormal pressure rise, it is possible to easily control the flow of the product liquid by interlocking the first automatic flow rate adjustment valve g and the second automatic flow rate adjustment valve φ.

As is clear from the above description, according to this embodiment, the following effects of high practical value can be obtained.

(1) It is possible to send heat-sterilized product liquid to the filling machine according to the product liquid consumption i in the filling machine.

(2) During operation, abnormal pressure rises in functional components such as foreign matter separators, heat exchangers, filters, automatic valves, and dispensing equipment can be prevented, and the durability of these functional components can be maintained.

(3) Due to the effect of (1) above, the filling machine is in production operation.

At the same time, we do not have to worry about wasted heating energy, and at the same time, in the conventional system, for example, the consumption of product liquid in a filling machine was halved, and a part of it was returned to the cooling liquid at the scheduled time. You can feel at ease (in this case, you can eliminate the need to consume cooling water.

(4) When the filling machine is temporarily out of operation, the conventional IC heats and sterilizes a predetermined product liquid flow rate (liquid flow rate commensurate with the product liquid consumption of the filling machine) using a heat exchanger, and then Switching the flow path to the liquid return side allows cooling retardation.
The energy f- for heating and the cooling water for cooling are wasted and the constant value is at the minimum level without deteriorating the quality of the product liquid, or if the quality of the product liquid is not deteriorated. If there is no problem with the total heat, it is possible to temporarily stop feeding the product liquid to the heat exchanger, and since the flow rate is adjustable, compared to conventional systems, the filling machine can be temporarily stopped. In some cases, the consumption of heating energy f- and cooling water can be reduced to less than half.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing an example of a conventional system, and FIG. 2 is a block diagram showing an embodiment of the present invention. b: Ribbon B shift, d: Pressure feeding, f: Bypass automatic valve, g: First flow rate adjustment automatic valve. h: heat exchanger, 1: first three-way automatic valve 6n: second three-way automatic valve, φ: second flow rate adjustment automatic valve + r+
u: Liquid return piping

Claims (1)

[Claims] A pressure-feeding pump, a heat exchanger for heat sterilization, a first three-way automatic switching valve that switches the flow path to the liquid return side when the sterilization temperature is abnormal, and a first three-way switching valve for filling the liquid. In the liquid processing device, the heat-sterilized liquid is sent to the filling machine via a second three-way automatic switching valve that switches the flow path to the liquid return side when the liquid is not available. In the first
and when one of the second three-way automatic switching valves switches to the liquid return side, and when the flow rate of liquid sent to the filling machine becomes less than the set liquid volume, the first flow rate adjustment automatic valve that adjusts the flow rate is activated. ,′f,
Ta. A second flow meter adjustment valve is provided on the outlet side of the second three-way switching automatic valve to feed a liquid according to the amount of liquid extinguished in the filling machine, and the first flow rate 8'Ifi is automatically adjusted. A liquid processing device characterized in that a flow path is provided on the inlet side of the valve for bypassing the liquid to the return side according to the opening degree of the valve.