SU1747338A1 - Tank for food and corrosive media - Google Patents

Abstract

Use: in the chemical, food and related industries, in the construction of containers for liquids. The container contains a housing on supports, one of which is integral and the parts of which form a cavity in which the bellows is installed. The bellows is attached to the top of the support and is connected to the level gauge via a channel. The cavity of the bellows and the channel are filled with a neutral liquid. A force spring is placed between the lower and upper part of the support, which receives the load of the container. The level gauge is adapted to replace the measuring glass channel with a tube to which the float level sensor is connected. 2 hp f-ly, 2 ill.

Description

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The invention relates to the construction of containers for liquids and can be used in the chemical, food and related industries.

A known container, comprising a housing mounted on supports, covers, a level gauge in the form of a measuring glass.

The disadvantages of such containers are the direct contact of the gauge with the liquid, which is undesirable if there is a food or corrosive medium in the tank, as well as the inconvenience of servicing the tank level gauge.

The purpose of the invention is to increase the convenience of operation and increase reliability by eliminating the contact of the visual level gauge (or the sensitive element of an electric level gauge) with the measured liquid.

To achieve this goal in a container for food and corrosive media, including a body mounted on supports and equipped with an equalizer, according to the invention, the container is provided with a bellows, and at least one support is made of two movable spring-loaded parts to form between them a chamber for placing the bellows, at the same time in the upper part of this support there is a socket with a channel for communicating the bellows cavity with the cavity of the level gauge, the latter being placed outside the housing, and the cavity of the socket, channel and bellows filling us neutral hydraulic fluid. In addition, the tank can be equipped with a level sensor mounted on the gage.

Figure 1 shows the support capacity, section; 2 a level switch sensor connected to a capacitance level gauge.

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The container contains a housing 1 on the supports, one of which is made of composite, containing the upper 2 and lower 3 parts, forming a cavity 4 in which the bellows 5 is installed, fixed to the upper part of the support 2 and connected by channel 6 with a level gauge 7 having a measuring glass tube 8. The level gauge is installed on the upper part 2 of the pore through the transition nipple 9. Between the lower 3 and the upper 2 parts there is a force spring 10, perceiving the capacity load. A limiting pin 11 is installed in the lower part of the support. The level gauge 7 is capable of replacing the measuring glass channel 8 with the tube 12, to which the float level sensor 19 with the float 14 is connected, the coil 15. a transistor amplifier 16. an electromagnetic relay 17. having contact terminals 18 .

The design works as follows.

The container, filled with the process liquid, presses against the support. The force is sensed by the spring 10, which begins to compress. The bellows 5, located between the upper part 2 and the lower part 3 of the support, is deformed, as a result of which the neutral liquid in the bellows 5 is displaced and flows through the connecting channel 6 in the upper part 2 of the support into the measuring tube 8 of the level gauge 7. Stopping near a certain dividing scale of the level gauge, a neutral liquid indicates the level of the process fluid in the vessel. When replacing the glass measuring tube 8 of the level gauge 7 with the tube 12, it can be connected to it

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a level sensor 13 with a transistor amplifier 16. In this connection, it is possible that the working fluid of the bellows 5 is exposed to a float 14 of a level 13 relay,

which, raising or lowering, changes the inductive resistance of the coil 15. As a result, a change occurs in the circuit of the transistor amplifier 16, the contacts 18 of the electromagnetic relay are closed

17, which is a signal in the process control and monitoring circuit.

The proposed tank design makes it possible to efficiently use it, take readings of the liquid level and control the process without a device in contact with the process medium.

Claims (2)

Invention Formula 1. Capacity for food and aggressive media, including the case, mounted on a support and equipped with a level gauge, that is. in order to increase ease of operation and increase reliability, it is provided with a bellows, and at least one support is made of a composite of two movable spring-loaded parts with the formation between them of a chamber for placing the bellows, in the upper part of this support there is a socket with a channel for communicating the blu-ray cavity with the cavity of the level gauge, the latter being placed outside the housing, and the cavities of the socket, the calm and bellows are filled neutral working fluid. 2. The container according to claim 1, characterized in that it is provided with a level sensor mounted on the gauge. 17. tfЈf s5 te- # rn Shmli FIG. 2