RU2183821C2 - Automatic siphon metering tank-liquid distributor - Google Patents

Abstract

FIELD: hydraulic automatic equipment. SUBSTANCE: invention can be employed to convert constant flow of liquid of low rate to discrete flow of high rate and to supply it in specified portions in turn into several conduits. Invention can find use in metering out of liquid to several users in food and chemical industries, in irrigation systems and in various devices of hydraulic wash-off. Salient feature of metering tank lies in absence of moving parts. It includes collection vessel, supply tube with cock, working siphon with mechanisms of vacuum actuation and stalling and with mechanisms of automatic change-over of liquid comprising several siphons with discharge parts put into sleeves having outlet branch pipes and intercombined with suction parts by means of collector. Outlet branch pipe of each preceding siphon communicates by means of microsiphon with lower part of space of sleeve of following siphon and branch pipe of sleeve of last siphon communicates with lower space of sleeve of first siphon. EFFECT: widened application field. 3 dwg

Description

 The invention relates to hydraulic devices and can be used to convert a constant flow of liquid at a low flow rate into a discrete flow with a high flow rate and supplying it in predetermined portions alternately to several channels. More specifically, this invention can find application for the dosed supply of liquid to several consumers in the food and chemical industries, irrigation systems and in various water washing devices.

 A device for automatic dosed discrete fluid supply, a continuous stream [1].

 The disadvantage of this device is that the issuance of doses is carried out only at one point.

 The closest in technical essence to the claimed device is, selected as a prototype, the device of the head unit of the installation for irrigation, including a storage tank, a feeding tube with a tap, a working siphon, a mechanism for automatically switching the fluid flow [2].

 The disadvantage of this device is the design complexity and lack of reliability.

 The task to which the invention is directed, is to simplify the design and increase reliability.

 The invention is illustrated by drawings, where in Fig.1 is a schematic hydraulic diagram; figure 2 is a diagram of the mechanisms for starting and breaking the vacuum of the working siphon; figure 3 - the head of the tube-sensor of the liquid level in the storage tank.

 Automatic siphon dispenser-dispenser of liquid consists of a storage tank 1, a supply tube 2 with a tap, a working siphon 3 and an automatic switch of the fluid flow 4.

 The working siphon 3 includes a suction 5 with a pipe 6 and a drain 7 part, a liquid level sensor tube 8 and a glass 9, the cavity of which is connected to the neck of the siphon 3 with a microsiphon 10 with an adjustable choke 11. The head part of the liquid level sensor tube 8 is located in the suction part 5 of the siphon 3 and has a hole 12 in the wall near its upper end. The lower end of the liquid level sensor tube 8 is connected to the atmosphere. The listed nodes form the mechanism for starting and breaking the vacuum of the working siphon 3.

 The automatic fluid flow switch 4 contains a number of siphons 13 (I, II, III, IV), a collector 14, glasses 15 (I, II, III, IV) and microsiphons 16 (I, II, III, IV). The suction parts 17 (I, II, III, IV) of the siphons 13 are connected by a collector 14. The drain parts 18 (I, II, III, IV) of the siphons 13 are buried in glasses 15 having outlet pipes 19 (I, II, III, IV) . The outlet pipe 19 of each glass 15 of the previous siphon 13, for example the first, is communicated by a microsiphon 16 with the lower part of the cavity of the glass 15 of the subsequent siphon, i.e. second and so on. And the nozzle of the glass of the last siphon (in this case, the fourth) is in communication with the lower cavity of the glass of the first siphon.

 The upper part of the cavity of the collector 14 is connected to the atmosphere by a breather tube 20, the upper end of which is located slightly above the neck of the working siphon 3. In addition, the lower part of the cavity of the collector 14 is connected with the drain by the tube 21.

 To prepare an automatic siphon dispenser-dispenser for operation, it is necessary to pre-fill with a liquid all but one cup 15 to a level that exceeds the lower cut of the drain 18 of the siphons 13. In this case, cups 15 (I, III, IV) are filled, the cup is not filled 15 (II). As a result, siphons 13 (I, III, IV) change their properties and turn into water-air locks. Siphon 13 (II) remains in its former properties.

 Automatic siphon dispenser-dispenser works as follows. The liquid in the supply tube 2 with the flow rate set by the tap enters the storage tank 1. The liquid level in the tank 1 rises, and it flows through the pipe 6 to the suction part 5 of the working siphon 3. The glass is filled 9. When the liquid level reaches the holes 12 in the tube wall -sensor 8 through this tube-sensor 8, the liquid will begin to flow to the atmosphere, sucking air from the neck of the working siphon 3 and thereby starting this siphon 3 in operation. The liquid fills the cavity of the collector 14, compressing the air in the cavities of the siphons 13 (I, III, IV), since the ends of their drain parts 18 (I, III, IV) are flooded with liquid, and squeezing the air from the cavities of the siphon 13 (II) into the atmosphere through an empty glass 15 (II) and an outlet pipe 19 (II). The siphon 13 (II) starts up, the liquid level in the storage tank 1 gradually decreases, and the liquid enters the "consumer" through the drain pipe 19 (II).

 When the siphon 3 is operating, the microsiphon 10 starts. At the moment when the microsiphon 10 pumps out the liquid from the glass 9, the vacuum of the working siphon 3 will break. Through the microsiphon 10, the neck of the siphon 3 will be connected to the atmosphere. The operating time of the siphon 3 for the fill-drain cycle is set by adjusting the transition section of the throttle 11. Thereby, the dose of liquid supplied per cycle is set.

 The outflow of fluid from the outlet pipe 19 (II) is included in the operation of the microsiphon 16 (III), which pumps the fluid out of the glass 15 (III). This will prepare the condition under which, in the next filling-draining cycle, siphon 13 (III) will turn on.

 When the liquid stops draining from the drain pipe 19 in all siphon cavities 13 (I, II, III, IV) and in the manifold 14 atmospheric pressure is established due to the fact that they will be connected with the atmosphere through the breather pipe 20. The discharge of the liquid column in the pipe is the breather 20 will occur through the drain pipe 21. In the cavity of the manifold 14, a liquid level will be established along the upper cut of the tube 21.

 Thus, the cycles of fluid accumulation in the tank 1 and its alternate draining in certain doses through the outlet tube 19 (I, II, III, IV) will be automatically repeated. To turn off the device from work, it is necessary to close the valve on the supply tube 2.

 The invention in comparison with the prototype is much simpler in design. It has more than half the number of communication channels between nodes; there are no control chambers and a dispenser for automatic liquid supply to them. Due to this, it is more reliable in operation and cheaper to manufacture.

Sources of information
1. Patent of Russia 2127833, cl. F 04 F 10/02, G 01 F 13/00.

 2. Patent of Russia 2108027, cl. A 01 G 25/02, 25/16, 27/00.

Claims (1)

 An automatic siphon dispenser-dispenser of liquid, including a storage tank, a supply tube with a tap, a working siphon with mechanisms for starting and stopping the vacuum and a mechanism for automatically switching the liquid flow, consisting of several siphons with drain parts buried in glasses, interconnected by suction parts, having outlet nozzles, characterized in that the outlet nozzle of each glass of the previous siphon is communicated by a microsiphon with the lower part of the glass cavity subsequent siphon, and the nozzle of the glass of the last siphon is in communication with the lower cavity of the glass of the first siphon.

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