RU383U1 - Nozzles for flame treatment of products - Google Patents

Abstract

1. Nozzle for flame treatment of products, comprising a combustion chamber with a cooling path and with a nozzle head, a coolant supply line and a nozzle, characterized in that the nozzle head has distribution and bypass channels, each of the bypass channels. It enters one of the ends into the cooling path, the other into the distribution channel, and the latter is connected to the coolant supply line. 2. Nozzles according to claim 1, characterized in that in the nozzle head there is a bypass and additional bypass channels, each of the latter being connected to the cooling duct and the other to the bypass channel. Nozzles according to claim 2, characterized in that the cooling path is divided into two parts communicated with each other at the end opposite the nozzle head, one of the parts in communication with the distribution channel, and the other with the outlet channels.

Description

X .SSJO

 B05B 1/06

NOZZLE OF THE GAS SHESHEAS TREATMENT YUDDSH

Joined: refers to devices for the flame treatment of products, in particular, to designs of nozzles for spraying coatings, cutting, surfacing, etc.

Known nozzles for flame treatment of products adopted for the prototype, and containing combustion chambers with a cooling path and with a rivule head, a coolant supply line and nozzle (see US patent No. 44I642I, Nl. 239/79, MKI B05B 7/20 , acc. in 1983). However, the implementation of the nozzle head of the known nozzle uncooled does not allow the process of burning the fuel mixture at high pressure, and this in turn sharply limits the capabilities of the nozzle, since the temperature and speed of the combustion products, that is, two main factors affecting the cutting, surfacing, spraying coatings are directly proportional to the combustion pressure.

The aim of the invention is to provide cooling for the glomerular head.

This goal is achieved by the fact that distribution channels and bypass channels are made in the forum head, each of the channel bypasses exits at one end into the cooling path, and the other into the distribution channel, and the latter is connected to the coolant supply line. At the same time, diversion channels and additional bypass channels can be filled in the forum head, each of the latter being in one of the ends connected with the cooling path, the other with the drain channel. The cooling path can be divided into two parts communicated between themselves at the end, an anti-flabby glomerular head, one of the parts being in communication with the distribution channel, and the other with outlet channels.

In FIG. I is a longitudinal section through a nozzle; FIG. 2 view A of FIG. I, in FIG. 3 is a section BB of FIG. 2, in FIG. 4 is a section BB of FIG. 3, in FIG. 5 is a view A of FIG. I, and in FIG. b - section BB of FIG. 3 when performing in the head of the head of the distribution and bypass channels.

The nozzle for the flame treatment of the products contains a combustion chamber I with a cooling path 2 and with a glide head 3, a coolant supply line (not shown), and a nozzle 4. In the nozzle head 3 there are distribution 5 and bypass channels b, each of the bypass channels b exits one end into the cooling path 2, and the other into the distribution channel 5, the latter being in communication with the coolant supply line. In the nozzle head 3 can be made bypass 7 and additional bypass 8 channels. Each of the channels 8 has one end connected with the cooling channel 2, and the other with the branch channel 7. The cooling channel 2 can be divided into two parts, 9 and 10, communicated by themselves at the end opposite the nozzle head 3, while one of parts 10, in communication with the distribution channel 5, and another, 9 - with the outlet channel 7. The cooling path is formed between the inner 12 and outer II walls of the nozzle. When performing only the distribution channel 5 in the nozzle head 3, the coolant is removed from the duct 2 through the opening 13 in the wall II. Fuel (or hot and oxidizing agent) is supplied through channels 15 and 16. The separation of cooling TjBKTa 2 into two parts 9 and 10 can be carried out by longitudinal stampings 17 in wall II, which begin at the nozzle head 3 and end near the nozzle exit 4. If necessary introducing into the flow of products of combustion of powder (abrasive for cutting or other powder for spraying coatings on the surface of the product). is produced through a channel 18 made in wall II and 14, which serves as a mixing unit for the powder and the combustion flow. The nozzles work as follows. The fuel mixture (fuel and oxidizer) is introduced into the combustion chamber I through channels 15 and 16, where it is ignited (for example, by a candle, which is not shown in the figures) and burns. The resulting combustion products are accelerated in the nozzle 4 to preferably supersonic speeds and fed further to the product. If it is necessary to introduce into the flow of combustion products, t) the latter is fed through channel 18. The counter-head 3 is cooled by a cooling liquid (for example, process water), which enters the distribution channel 5 from the coolant supply line, and from it through the bypass channels b they spend 2 in the cooling one, and are discharged from the path 2 through the hole 13. In order to improve the performance, look and reduce the size, the coolant can be discharged through the outlet channel 7 to the nozzle second head 3 in which L zhid5 -9-C02) S

the bone from the cooling gragg 2 is discharged through additional pepper channels 8, while in order to prevent the direct flow of liquid from the bypass channels b into the bypass channels 8 and the formation of a stagnant zone in the duct 2, the cooling 2 can be divided into two parts 9 and 10, communicated by themselves at the end the opposite nozzle head 3 (in the area near the nozzle exit 4). One of the parts, -10, will communicate 1a through channels 5 and b with a coolant supply line, and shchugaya, 9, through channels 7 and 8 - with a fluid outlet. Separation of the cooling duct 2 into two parts 9 and 10 lies down; it was carried out by two longitudinal punchings 17 in wall II, which begin directly at the nozzle head 3 and end at the nozzle exit 4. This design of the partitions does not require additional parts and is structurally simple.

Bypassing the coolant through channels directly performed in the nozzle head ensures its efficient cooling and makes it possible to carry out the process of burning the fuel mixture in the combustion chamber at high pressures and, as a result, achieve high velocities and high temperatures of the flow of combustion products.

The use of the invention extends the capabilities of the nozzle both in the types of sprayed coatings and their properties, and in the types of materials being cut due to the expansion of temperature and velocity parameters of the flow.

Applicant: b. .C.J

Jn bjf I. Ffei4eT Kina (N.N. Shbchenkova

A.V. Voronetskiy Z.I. Voronetskaya

O UxMbOx Adam. Adamova

Claims (3)

1. Nozzle for flame treatment of products, comprising a combustion chamber with a cooling path and with a nozzle head, a coolant supply line and a nozzle, characterized in that the nozzle head has distribution and bypass channels, each of the bypass channels. It leaves one of the ends in the cooling path, the other in the distribution channel, and the latter is in communication with the coolant supply line. 2. Nozzles according to claim 1, characterized in that in the nozzle head a bypass and additional bypass channels are made, each of the latter being connected to the cooling path and one to the bypass to one of the ends. 3. Nozzles according to claim 2, characterized in that the cooling path is divided into two parts communicated with each other at the end opposite the nozzle head, one of the parts in communication with the distribution channel, and the other with the outlet channels.