UA8276U - Piston metering pump ?? ?? ?? ?? - Google Patents

Abstract

The proposed piston metering pump contains a cylinder with an outlet branch pipe and a piston with a hollow rod, which is installed in the cylinder. The cylinder is closed by a demountable cover, in which a sleeve for the rod is provided. The rod has outside thread and is installed with a possibility to rotate. The rod is coupled with the piston by an internal screw, which fits in the thread hole of the piston insert. To the branch pipe of the cylinder, a hose with a gate valve and a plug is connected.

Description

Description of the invention

The useful model belongs to the technique of topping up, in particular, to the construction of a piston dispenser, which is intended for the dosing of liquids, for example, transformer oil, into high-voltage inputs of transformers or other electrical devices.

The well-known liquid dispenser according to the patent of Ukraine Mo50873, cl. З0О1Е13/00, publ. 11/15/2002 contains a measuring cylinder, which is rigidly connected to the lid and has a cutout for a siphon tube, and a float with a bellows is hermetically connected to the lid of the measuring cylinder, in addition, a hole is made in the lid, which connects the internal 710 cavity of the float with the atmosphere for its operation .

The disadvantage of the known design of the dispenser is the small volume of dosing liquid from the measuring cylinder, which reduces the efficiency during operation.

A well-known device for refueling high-voltage transformer inputs with oil according to a Russian patent

Federation Mo2211498, cl. NOTE27/14, publ. 27.08.2003 contains an oil container and a lid that has a diaphragm, a 12 tee, a pump and a valve that are connected to the pipelines. The container has a nozzle for air outlet, oil is pumped into the container through a valve and a tee, and the inlet nozzle of the pump is connected to the tee through a pipeline, and the outlet nozzle for connecting the pipeline is located in the superpiston cavity of the pump, which is supplied with a non-return valve.

The disadvantage of the known design of the dispenser is the uneven supply of oil within one stroke of the pump piston 20 and the discrepancy between the pump performance and the amount of liquid sealing, which leads to a drop in the normalized pressure and rupture of the diaphragm.

The well-known dispenser according to the patent of the Russian Federation for the useful model Mo38057, kl. (З01Е11/14, publ. 05/20/2004 contains a body, leading and driven plungers, the first of which is connected to the body using a frame in the form of rods that are fixed by traverses, and the other plunger movably passes through a sleeve that is fixed 29 to of one of the traverses and has a stop for braking at the moment of absorption of the dose

The disadvantage of the known dispenser is mechanical damage at the point of connection of both plungers inside the housing, which stops dosing and requires repair.

The well-known piston dispenser according to the patent of the Russian Federation for the useful model Mo36513, cl. (З01Е11/00, publ. 10.03.2004 contains a housing cylinder in which a piston and a vertically installed ee are placed, a 30 hollow rod, inside which a dosing valve with a spring is located, and the lower end of the dosing valve rests on an adjustable rail, which is installed through a through window in the rod, the lower end of which is in contact with a drive mechanism having a roller. p

The cylinder of the dispenser body is made with an outlet channel. We accept this design of the dispenser as a prototype. The disadvantages of the prototype are as follows:

Zo - the design of the dispenser is not improved, it is material-intensive, because it has a multi-fold mechanism that requires the coaxial arrangement of the elements of the regulating device and the pusher, - the reliability of dosing is reduced, and when re-filling with liquid, it is possible to entrap air into the device. 8

The useful model is based on the task of developing a design of a piston dispenser, which ensures 50 continuous filling of the required volume of transformer oil into the hermetic high-voltage inputs of transformers, which is collected in the cylinder of the dispenser body with an excess pressure not exceeding 2 kgf/cm? or 4 kgf/cm?, moreover, the design of the piston dispenser allows you to transport it, because the weight with filled degassed oil is equal to 8 Kkg, and store degassed oil in the housing cylinder for up to 30 days.

The solution to the given problem is provided by a piston dispenser, which contains a housing cylinder, in which a piston and a vertically installed hollow rod and an output channel are placed, due to the fact that the housing cylinder has a removable cover, in which a support sleeve is installed, through the hole of which the rod passes, which has an external screw thread and is installed with the possibility of rotation, and a tension screw is installed inside the rod -1 and the rod is connected non-rigidly to the composite piston, inside which a heel with a central threaded hole is installed, in which the end of the tension screw is screwed with the possibility of rotation , and 4) 50 a pressure flexible sleeve is attached to the tube of the outlet channel, at the end of which a shut-off valve and a plug are installed.

The piston dispenser is manual and has a crank that can be rotated clockwise or counterclockwise.

The gate is connected to the rod by means of a tightening screw, which is made removable. At the same time, the stock

So is made removable and connected to the piston using a semi-coupling, which is located at the end of the rod, and the hole in the support sleeve of the cover has a thread.

For sealing, the removable cover is connected to the cylinder of the body with the help of strips that are fixed with pins.

The piston has the form of a ring with upper and lower cuffs, and under on the heel there are bronze washers to preserve the surface, and the end of the tightening screw is threaded, and on the end of the piston heel there is a semi-coupling for connection with the semi-coupling of the rod.

Plates are attached to the piston ring, which "squeeze" the lower cuff and press it against the surface of the cylinder.

For better maintenance, the dispenser has a manometer, which is located at the level of the removable cover of the cylinder and body, connected to the tube of the output channel and has a shut-off valve.

The manometer is protected from mechanical damage by a casing, and from precipitation by a lens.

A pencil case for the rod and tension screw and a pencil case for the bolt, which serves as a handle for transportation, are attached to the cylinder.

For rigid performance, the cylinder has a base that is connected to the bottom.

The technical result that is achieved when using a useful model: - the improved design of the piston dispenser, the screw rod with the tightening screw is made removable and the non-rigid connection in the form of a ratchet between the rod and the fifth piston ensures the removal of the rod from the cylinder of the dispenser; 70 - simplified filling of transformer oil into hermetic inputs of transformers, vacuuming and degassing processes are excluded, sampling and analysis of oil is carried out directly from the dispenser cylinder; - it is possible to check and test the tightness of inlets with the help of a piston dispenser, in which the excess pressure does not exceed 2kgfs/cm2-4kgfs/cm2, and the test pressure, for example, 2-Zkgfs/cm2 in the inlet, depending on the temperature, is determined by the excess pressure in the cylinder of the dispenser , which allows 75 topping up of oil without air entering the input, thus checking the presence of leakage in the transformer input; - pressure adjustment is carried out directly in the cylinder of the dispenser, which is connected through the output channel in the form of a tube with a manometer; - the collision of oil with air is excluded, because the tightness of the cylinder of the dispenser itself is ensured, as well as through the pressure flexible sleeve, air is constantly squeezed out of the sleeve with the installation of a plug; - it is possible to transport and store degassed oil in the cylinder of the dispenser body for up to 30 days.

The piston dispenser, which is claimed, is explained by the following description and drawings, where:

Fig. 1 - a general view of a manual piston dispenser in cross-section,

Fig. 2 - a manual piston dispenser, in the cylinder of which the piston is in the lowest position,

Fig. 3 - manual piston dispenser, which is filled with degassed oil for preservation, floating c) piston in the upper part of the cylinder,

Fig. 4 - manual piston dispenser in working position,

Fig. 5 - cuff, (Te)

Fig. b, Fig. 7 - piston ring,

Fig. 8 - projection of I according to Fig. 1, -

Fig. 9 - drawing II according to Fig. 2. Ge

According to a useful model, the filling of transformer oil 1 into the high-voltage inputs (not shown) of transformers is carried out using a manual piston dispenser 2, which contains a cylinder C, in which

A metal hollow rod 4 is installed, which is connected loosely to the composite piston 5 with the possibility of reciprocating movement, while the rod is removable and connected to the piston 5 of the dispenser by means of a semi-coupling 6, which is located at the end of the rod 4 (see Fig. .1, Fig. 2, Fig. 3, Fig. 4, Fig. 8). "

Cylinder C has a removable cover 7, in which a support sleeve 8 is installed with a hole that has a thread (see -

Fig. 1).

The rod 4 has an external screw thread A and is installed in the hole of the support sleeve 8 with the possibility of rotation c (see Fig. 1, Fig. 8). The removable cover 7 is connected to the cylinder C by means of bars 9, which are fixed by pins 10 (see Fig. 1). "» The gate 11 of the dispenser 2, which is installed with the possibility of clockwise or counterclockwise rotation, is connected to the rod 4 by means of the tightening screw 12, which is installed inside the rod 4 and made

REMOVABLE (ee) The tightening screw 12 inside the rod is sealed with a cuff 13. The end of the tightening screw 12 is threaded (see Fig. 1). d The cylinder Z of the dispenser has an output channel in the form of a tube 14, to which a pressure flexible sleeve 75 -I of the cylinder is attached, and at the end of the sleeve 15 a shut-off valve 16 and a plug 17 are installed. The sleeve 15 is made up to 5 m long and more (see Fig. 2 , Fig. 3, Fig. 4, Fig. 9). The piston 5 consists of a ring 18 with upper and lower cuffs 19 and a ring retainer 20 with a spacer 21 made of fluoroplastic material (see Fig. 1, Fig. 5, Fig. 7).

The upper and lower cuffs 19 are separated from each other by a protrusion 22, which is made on the ring 18 of the piston 5 (see Fig. 1, Fig. 5). c 55 In the ring 18 of the piston 5, a metal heel 23 is installed, under which bronze washers 24 are located. The heel 23 is located in the socket 25 of the ring 18 of the piston (see Fig. 1).

The heel 23 has a central threaded hole and is closed by the retainer 26, which is installed in the piston 5, thus the heel 23 does not jump out of the socket.

At the same time, a semi-coupling (not shown) is made on the end of the heel 23 for a non-rigid connection with the semi-coupling of the rod 4, forming a ratchet (see Fig. 8).

The threaded end of the tightening screw 12 is installed in the hole of the heel 23 with the possibility of rotation (see Fig. 1,

Fig. 2).

The inner surface of the cylinder Z has a mirror (polished) surface B, which is made of corrosion-resistant material (see Fig. 1). 65 Cuffs 19 and distance gasket 21 of piston 5 are in contact with the mirror surface B of cylinder 3.

Plates 28 are attached to the ring 18 of the piston 5 through the holes 27, which "squeeze" the lower cuff 19 for tight fitting of the cuffs to the surface of the cylinder (see Fig. 1, Fig. 5, Fig. b, Fig. 7).

To control the pressure of the transformer oil, a pressure gauge 29 is used, which is located at the level of the removable cover 7 of the dispenser cylinder, is connected to the tube 14 of the output channel with the help of a nut 30 and has a shut-off valve Z1 (see Fig. 1).

The manometer 29 is protected from mechanical damage by a casing 32, and from precipitation by a lens 33 and a gasket 34, which is pressed by a cover 35.

Lens 33 with a diameter of 4 mm.

The removable cover C6 in the casing 32, creating a window that has opened, serves to remove the pressure gauge 29. 70 The cylinder C of the dispenser has a case 37 for the rod 4 and the tightening screw 12 and a case 38 for the bolt 11.

With the help of screws 39 and bolts 40, pencil cases C 7, 38 and casing 32 of the manometer are attached to the cylinder C.

A metal base 41 is welded to the bottom of the cylinder Z, and a pencil case 38 serves as a handle during transportation.

In the transport position of the dispenser, a plug 42 is installed in the support bushing 8 of the cylinder, because ingress of moisture and dust into the superpiston cavity is not allowed (see Fig. 3).

The flexible sleeve 15 is wound and attached to the pencil case 37 of the rod 4.

Adding degassed oil to the hermetic inlets (not shown) of transformers begins with squeezing out air and oil residues from the cylinder Z of the dispenser, which is installed in a vertical position, while the plug 77 is removed from the flexible sleeve 15 and the shut-off valve 16 is opened. Turning the knob 11 clockwise , the rod 4 rotates and the piston 5 is set to the lowest position and air and oil residues are forced out of the cylinder C through the flexible sleeve 15. Then the shut-off valve 16 on the sleeve is closed.

The flexible sleeve 15 is connected to the container (not shown) with degassed oil and the shut-off valve 31, the manometer 29 is cut off to avoid its damage.

By slowly rotating the crank 11 counterclockwise, the rod 4 rotates in the support sleeve 8 and the piston 5 in the cylinder C moves up, while the working cavity of the cylinder C is filled with degassed oil of no more than 1 liter, which can withstand a temperature of no higher than 14096.

Then the dispenser is installed in an inclined position with the cover 7 tilted to the side, so that the opening of the channel 14 in the bottom of the cylinder c) is in the uppermost position, and they make sure that there is no air. Cylinder Z from the dispenser is filled with oil up to 8 liters.

Faucet 31 of the dispenser manometer opens. The oil inside the cylinder is under excess pressure (o zo Zkgs/cm?7.

Then the shut-off valve 16 on the flexible sleeve 15 is closed, which is disconnected from a separate container with degassed oil and covered with a plug 17, which excludes air from entering the sleeve. with

The flexible sleeve 15 is fixed on the fitting of the high-voltage input (not shown) and the pressure is monitored by the manometer 29. co

When the oil pressure is controlled by the manometer 29 of the dispenser to an excess pressure of Zkgs/cm?, the oil enters the inlet when the spinneret 11 rotates counterclockwise and the piston 5 in the cylinder C moves down without getting air. "

After adding oil, the piston dispenser 2 is transferred to the transport position: z

Holding the screw 11 in place, the tightening screw 12 is unscrewed from the heel 23. The screw rod 4 is also unscrewed from the support sleeve 8, in the hole of which a plug 42 is installed. c The removed rod 4, tightening screw 12 and screw 11 are placed in the corresponding pencil cases 37 and 38. Covers on pencil cases 37 and 38 are closed. -» The flexible sleeve 15 is wound on the pencil case 37.

The cover 32 of the protection of the manometer 29 is also closed with the installation of the cover 36.

During transportation, degassed oil can be stored in cylinder C of the dispenser for up to 30 days, while (ee) the floating piston 5 is located in the upper part of cylinder C (see Fig. 3). 7 The useful model allows you to use the improved design of the piston dispenser, in which it is possible to store and transport degassed oil, and to check the tightness of high-voltage inputs of transformers by adding oil under excess pressure.

F 50 Sources of information: 1. Patent of Ukraine Mo50873, cl. 301E13/00, publ. 11/15/2002 2. Patent of the Russian Federation Mo2211498, cl. NOTE27/14, publ. 27.08.2003 3. Patent of the Russian Federation Mo38057, cl. (З0О1Е11/14, publ. 05/20/2004. 4. Patent of the Russian Federation for utility model Мо36513, class Z0О1Е11/00, publ. 03/10/2004 (prototype).

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Claims (13)

The formula of the invention 1. A piston dispenser containing a housing cylinder in which a piston and a vertically installed hollow rod are placed and an output channel is made, which is characterized by the fact that the housing cylinder has a removable cover, in which a support sleeve is installed, through the hole of which the rod passes, which is made with an external screw thread and with the possibility of rotation, and a tension screw is installed inside the rod and a rod is loosely connected to the piston, inside which a heel is installed, which is made with the possibility of rotation, into the central threaded hole of which the end of the tension screw is screwed, and to a pressure flexible sleeve is attached to the tube of the outlet channel, at the end of which a shut-off valve and a plug are installed. 2. A piston dispenser according to claim 1, which differs in that it has a crank, which is installed with the possibility of clockwise or counterclockwise rotation. Z. Piston dispenser according to claims 1, 2, which differs in that the handle is connected to the rod by means of a tightening screw, which is made removable. 4. A piston dispenser according to claim 1, which is characterized by the fact that the rod is removable and connected to the piston by means of a semi-coupling located at the end of the rod. with 5. Piston dispenser according to claim 1, which differs in that the hole of the support sleeve has a thread. 6. The piston dispenser according to claim 1, which is characterized by the fact that the removable cover is connected to the cylinder of the body by means of bars that are fixed with pins. 7. A piston dispenser according to claim 1, which differs in that the piston has the form of a ring with upper inner (FO) cuffs, and bronze washers are located under the heel. 8. Piston dispenser according to claim 1, which differs in that the end of the tightening screw is threaded. 9. A piston dispenser according to claim 1, 4, which differs in that a semi-coupling is made on the end of the piston heel for connection with the semi-coupling of the rod. co 10. A piston dispenser according to claims 1, 7, which is characterized by the fact that crushing Zo plates are attached to the piston ring. 11. Piston dispenser according to claim 1, which differs in that it has a manometer, which is located at the level of the removable cover of the cylinder of the housing, is connected to the tube of the output channel and has a shut-off valve. " 12. Piston dispenser according to claim 11, which differs in that the manometer is protected from mechanical damage with a casing, and from atmospheric precipitation - with a lens. 13. A piston dispenser according to claims 1, 2, which differs in that a pencil case for a rod and a tightening screw and a pencil case for a screw are attached to the cylinder of the case. "» 14. Piston dispenser according to claim 1, which is characterized by the fact that the housing cylinder has a base that is connected to the bottom. Official bulletin "Industrial Property". Book 1 "Inventions, useful models, topographies of integrated circuit microcircuits", 2005, M 7, 15.07.2005. State Department of Intellectual Property of the Ministry of Education and Science of Ukraine. -and 4) So 60 b5