RU58052U1 - GAS-LIQUID GENERATOR FOR THE PRODUCTION OF POLYMER FOAM - Google Patents

Abstract

The utility model relates to the field of construction, in particular to installations for the production of heat-insulating foam "Penoizol". The essence of the proposed device is as follows. The proposed device, like the analogue, has a container with a working aqueous solution of a foaming agent and hardener, equipped with a supply line to the foam generator and then to the mixer of working components. It also has a pneumatic compressor with a line for supplying compressed air to the foam generator. There is also a container with liquid polymer resin, equipped with a resin supply line to the mixer of working components. But unlike the analogue, the proposed device excludes filters on both supply lines of working components and it additionally contains the following components, devices and assemblies: - on the supply line of the working solution of the foaming agent and hardener, a section of the line connected from an electric pump from a flexible thin hose of at least length 10 meters, to which a choke, a non-return valve and a pressure sensor are connected in series and further connected to a foam generator; - on the compressed air supply line, a section of the line connected to a pneumatic compressor from a thin thin hose of at least 10 meters in length, to which a non-return valve and a pressure sensor are connected in series and then connected to a pan generator; - on the line for supplying liquid polymer resin, a section of the line connected to an electric pump from a thin flexible hose of at least 10 meters in length, to which a series-adjustable throttle, a non-return valve and a pressure sensor are connected, and then connected to the mixer of working components. 1 illustration.

Literature:

1. "Gas-liquid generator" according to the description of the invention to the patent of the Russian Federation No. 2036706, IPC class 6 B 01 F 3/04, published in Bull. No.16, 06/09/1995

2. "Gas-liquid installation ГЖУ-Н1" described in the "Technological regulations for the production of foam" Penoizol "ГЖУ-Н1.000 ТР, approved by the general director of CJSC" Scientific and Technical Center METTEM "L. A. Sobolev, M., 1995. , 15 s.

Description

The utility model relates to the field of construction, in particular to installations for the production of heat-insulating foam "Penoizol".

The well-known "Gas-liquid generator" according to the description of the invention to the patent of the Russian Federation No. 2036706, IPC class 6 B 01 F 3/04, published in Bull. No. 16, June 9, 1995 (1).

This device is designed to produce various materials, including Penoizol foam.

At the same time, this device has a number of drawbacks consisting in a complex and rather cumbersome design, as well as instability in operation due to the imperfect design of the device.

Also known is the “Gas-liquid installation GZhU-N1”, intended for the production of foam, developed by the authors of the above invention according to the patent of the Russian Federation No. 2036706, and described in the “Technological regulations for the production of foam" Penoizol "GZHU-N1.000 TR, on pages 7-10, M., 1999, approved by the General Director of ZAO METTEM Scientific and Technical Center L.A. Sobolev, a copy of 15 sheets is attached to the application materials, Appendix No. 1 (2).

This "GZhU-N1 gas-liquid installation" contains two containers: one container with a working aqueous solution of a foaming agent and hardener, and the second container with a liquid polymer resin.

The first tank is equipped with a working solution supply line through a control valve, an electric pump, a pressure sensor, a filter and a throttle with the ability to supply a working solution under a given pressure to a foam generator, which, in turn, is connected to a mixer of working components and which is equipped with a foam-forming outlet sleeve.

The second tank is equipped with a line for supplying liquid polymer resin, which under a given pressure through a control valve,

an electric pump, a filter and a choke feeds the polymer resin into the mixer of working components.

This installation also contains, connected to a source of compressed air, a supply line to the foam generator. And from the mixer of working components, the resulting foam mass is sent through the foam-forming sleeve to a predetermined place of filling (laying) of this mass.

This installation has a number of significant disadvantages, namely:

1. the installation has a large mass of more than 48 kg, which is mounted on a single welded case, on which two electric pumps, two pressure sensors, two filters, two control valves, three chokes and a foam generator are installed. For example, when filling cavities in the walls of houses with foam polystyrene, it is necessary to constantly move a heavy installation from place to place around the object;

2. the design of the device does not guarantee a stable flow of the foaming solution into the foam generator and into the mixer of the working components of the polymer resin, as filters and uncontrolled chokes are often clogged;

3. The technological regulations of this installation provide for washing the foam-forming branch hose after every hour of working with hot water for 10 minutes, that is, the installation performance is theoretically reduced by 16%. At the same time, for every 20 m ³ of foam produced 40 liters of effluents are formed, which pose a potential danger to the environment;

4. neither pressure sensor nor check valve are installed on the compressed air supply line, which creates unstable operation of the device;

5. in this installation, pressure sensors in the supply lines of the foaming solution and polymer resin are installed between the electric pumps and filters, which may show a distorted picture of the technical process; for example, the filter or throttle may be clogged, and the pressure on the pressure sensor supposedly corresponds to a predetermined value, but the amount of foam mass produced in the foam generator and mixer of working components can be significantly reduced;

6. when pouring, for example, cavities in high walls (up to 4-5 meters high), it is necessary to raise the foam-forming outlet sleeve to the height of the walls, and this leads to a decrease in pressure in the outlet sleeve by 0.3-0.4 kg / cm ² , and the flow (production) of penoizol will decrease to 80% of normal, which leads to a decrease in unit productivity.

The aim in the development of the proposed utility model is to create a gas-liquid foam generator for the production of polymer foam "Penoizol", which has no disadvantages of the above analogue.

The specified goal and technical result are implemented as follows.

The proposed device, like the analogue, has a container with a working aqueous solution of a foaming agent and hardener, equipped with a supply line to the foam generator and then to the mixer of working components. It also has a pneumatic compressor with a line for supplying compressed air to the foam generator.

There is also a container with liquid polymer resin, equipped with a resin supply line to the mixer of working components.

But unlike the analogue, the proposed device excludes filters on both highways and it additionally contains the following components, devices and assemblies:

- on the supply line of the working solution of the foaming agent and hardener, a section of the line connected to an electric pump from a flexible thin hose of at least 10 meters in length, to which a sequentially adjustable throttle, a non-return valve and a pressure sensor are connected and then connected to a foam generator;

- on the compressed air supply line, a section of the line connected to a pneumatic compressor from a thin thin hose of at least 10 meters in length, to which a non-return valve and a pressure sensor are connected in series and then connected to a foam generator;

- on the supply line of liquid polymer resin, connected to the electric pump, a section of the line made of a flexible thin hose of at least 10 meters in length, to which a series-adjustable throttle, a non-return valve and a pressure sensor are connected and then connected to the mixer of working components.

As a close analogue of the proposed device, you can take the gas-liquid installation GZHU-N1 according to the source of scientific and technical information (2).

The proposed device and its circuit diagram is shown in the drawing.

The proposed device contains the following units, devices, components and parts.

The container 1 contains a working aqueous solution of a foaming agent and hardener, which enters through line 2 made of a flexible thin hose with a diameter of 6 to 18 mm. Through the control valve 3, the working solution enters the electric pump 4 and from it is supplied under the specified pressure to the line 5, which is made of a flexible thin hose with a diameter of 6 to 18 mm and a length of, for example, 10 meters, and then the working solution passes through it through an adjustable throttle 6 and the check valve 7 into the foam generator 8. On the section of the line 5 from the check valve 7 and to the foam generator 8, a pressure sensor 9 is installed.

From the pneumatic compressor 10 originates the line 11 for supplying compressed air, to which the line 12 is connected, made of a flexible thin hose with a diameter of 6 to 18 mm and a length of, for example, 10 meters and then compressed air under pressure, for example 6 kg / cm ² through the return the valve 13 enters the foam generator 8. On the section of the line 12 from the check valve 13 and to the foam generator 8, a pressure sensor 14 is installed.

The container 15 contains a liquid polymer resin, which, along the line 16, also made of a flexible thin hose with a diameter of 6 to 18 mm, enters an electric pump 18 through a control valve 17 and is supplied from it to a line 19 under a given pressure, which is also made of a thin thin a hose with a diameter of 6 to 18 mm in length, for example, 10 meters, and further along it a working component (resin) passes through an adjustable throttle 20 and a check valve 21 into a mixer of working components 22, into which a mixture from a foam generator 8 enters at the same time.

On the section of the line 19 from the check valve 21 and to the mixer of the working components 22, a pressure sensor 23 is installed.

A foaming branch sleeve 24 is connected to the mixer of working components 22, through which the resulting foam mass is squeezed out under pressure and placed in a mold 25 or, for example, in a wall cavity.

In the proposed design of the device, thanks to elongated sections of more than 10 meters of highways 5, 12 and 19, it was possible to create a kind of stationary part, including tanks 1, 15, electric pumps 4 and 18 and an air compressor 10, as well as a lightweight portable part of the device 26, including a foam generator 8, a working mixer components 22 with a foaming outlet sleeve 24 and corresponding devices and assemblies.

The weight of the portable part 26 does not exceed 6 kg. And if you take into account the length of the foaming branch sleeve 24 with a size of, for example, 10 meters, then the operator of this installation has to be manipulated when working only with sleeve 24.

The proposed device operates as follows.

This unit is usually served by two operators. One of them prepares working components in tanks 1 and 15. Another operator with a portable part of the unit 26, due to the elongated sections 5, 12 and 19 of the supply lines of working components and compressed air, is located at a certain distance from the stationary part, including tanks 1, 15, pneumatic compressor 10 and electric pumps 4 and 18.

As the working components are ready, one of the operators includes electric pumps 4, 18 and a compressor 10 in operation.

The second operator at the portable part 26 determines the readiness of the entire unit by pressure sensors 9, 14, 23, which are mounted compactly next to each other on the portable part 26.

After the foaming agent and hardener solution are mixed with compressed air in the foam generator 8, pricing and foam mass with a predetermined foam mass volume of 0.5 m ³ / min begin. enters the mixer of the working components 22. In the mixer 22, the foam mass is mixed with the polymer resin and a foamy liquid mass is formed here, which is poured into the wall cavity along the foam-forming outlet sleeve 24, for example, and after a certain time hardens in the form of foam, acting as an effective heat insulator.

An operator working with the help of a foaming branch sleeve 24 is able to periodically monitor the readings of pressure sensors 9, 14 and 23. With stable readings, the entire unit works stably.

And if pressure increases on any of the pressure sensors, for example, if any adjustable throttle clogs, then pressure rises on the corresponding line. The operator is able to increase the clogging of the throttle to eliminate clogging of the throttle and after that the entire device will work stably.

And the check valve 13, installed on the compressed air supply line, will prevent the working solution from entering the compressed air line and thereby prevent a possible malfunction of the unit.

Thus, the proposed gas-liquid foam generator for the production of polymer foam is much more stable compared to the analogue. There is completely no need to rinse with hot water the foam-forming outlet sleeve, since the remaining foam mass is easily removed from it by means of the rolling roller or by trampling the remaining foam mass from the sleeve.

And due to the fact that the light portable part 26 can be removed from the stationary part at a considerable distance, the installation performance increases markedly, since there is no need to often move the installation from place to place when working at large construction sites. Also, foam mass and polystyrene are obtained stably with high quality in density and uniformity.

Literature:

1. "Gas-liquid generator" according to the description of the invention to the patent of the Russian Federation No. 2036706, IPC class 6 V 01 F 3/04, published in Bull. No.16, 06/09/1995

2. "Gas-liquid installation ГЖУ-Н1" described in the "Technological regulations for the production of foam" Penoizol "ГЖУ-Н1.000 ТР, approved by the general director of CJSC" Scientific and Technical Center METTEM "L. A. Sobolev, M., 1999. , 15 s.

Claims (1)

A gas-liquid foam generator for the production of polymer foam containing a container with a working aqueous solution of a foaming agent and hardener, equipped with a supply line of a working solution through a control valve, an electric pump, a filter, a throttle with the possibility of feeding it under a given pressure into a foam generator connected to a mixer of working components, which is equipped with a foam-forming branch sleeve; a pneumatic compressor equipped with a compressed air supply line to the foam generator; a container with a liquid polymer resin, equipped with a polymer resin supply line under a given pressure through a control valve, an electric pump, a filter, a throttle to the mixer of working components, characterized in that it further comprises: on the supply line of the foaming agent and hardener solution, a flexible pipe section connected to the electric pump a thin hose of at least 10 m in length, to which a series-adjustable throttle, a non-return valve and a pressure sensor are connected and further connected to a foam generator Oromo; on the compressed air supply line, a section of the line connected to a pneumatic compressor at least 10 m long, to which a non-return valve and a pressure sensor are connected in series and then connected to a foam generator; on the polymer resin supply line, connected to the electric pump, a section of the line made of a thin flexible hose of at least 10 m length, to which a sequentially adjustable throttle, a non-return valve and a pressure sensor are connected and further connected to the mixer of working components.