BG67277B1 - Inlet nozzle for upper supply water heater - Google Patents

Abstract

The inlet nozzle for upper supply water heater finds application in incorporation in water heaters of horizontal and vertical type having an inlet for cold water and also both for those mounted on the floor and for those that are mounted on a wall. It ensures even mixing of the two layers of water - hot and cold, which saves energy and prevents rapid cooling of the already heated water. The inlet nozzle for water heater includes an outer housing (1) in which an inner tube (4) is located. It is connected to a connecting nozzle (2) attached to the upper end of the outer housing (1) for connection to the supply pipe (3) of the water heater to the lower end of the inner pipe (4) is connected a water jet nozzle (5) with an extended upper end (6) with water outlets and an elongated lower end (12) with a fixing nozzle (15).

Description

Field of technology

The invention relates to an inlet nozzle for a boiler with top supply, which is used in hot water boilers and in particular for those horizontal or vertical type, which are located on the floor, as well as for all types of wall-mounted boilers.

BACKGROUND OF THE INVENTION

A boiler water inlet pipe is known, which consists of an outer housing with a water inlet connector with an inner water supply pipe located. An internal threaded hole is formed in the upper end of the outer housing. An outlet is formed at the upper end of the inner tube. Exhaust vents are made on the side of the inner tube. An outer tube is mounted on the inner tube, on which holes are also drilled laterally with fixed inclined plates located above each of them. A water flow reflector is placed at the upper end of the inner tube.

A disadvantage of the design thus described is that the mixing process between hot and cold water cannot be effectively controlled during the use of the boiler. Another disadvantage is that the rapid cooling of the already heated water cannot be prevented, which leads to significant energy consumption, especially in the case of horizontal or vertical type boilers. as with those that are located on the floor, as well as those mounted on the wall.

Technical essence of the invention

The object of the invention is to provide an inlet nozzle for a boiler with top supply and a boiler including such an inlet nozzle that effectively controls the process of mixing hot and cold water during the use of the boiler, preventing rapid cooling of already heated water and energy savings are achieved with horizontal and vertical boilers located on the floor, as well as with wall-mounted ones.

The problem is solved by an inlet nozzle for a top-fed boiler, which includes a deflector with an outer housing, at the upper end of which is an inner tube, which is connected to a connecting nozzle attached to the upper end of the outer housing for connection to a boiler supply pipe. Attached to the lower end of the inner tube is a water jet with an extended upper end with water outlets and an extended lower end, which serves as a spacer element of the inlet nozzle to the lower part of the boiler so as to keep the outer housing at a certain distance allowing laminarity. of water flow. This is essential because if the distance approaches 0, it is possible to disrupt the laminar flow of water from the bell outlet. If the distance is too great, it is also possible for the flow to be disturbed.

The upper part of the outer hull is shaped like a hemisphere, to the lower end of which a middle cylindrical section is attached.

A cone-shaped section is attached to the lower end of the middle cylindrical section of the outer housing, the wider end of which is oriented towards the inner wall of the boiler.

BG 67277 Bl

The elongated lower end of the water jet is extended beyond the lower plane of the conical section. A fixed nozzle with a rounded configuration is attached to said elongated lower end of the water jet. The fixing nozzle serves as a support part of the elongated lower end, and is for support in the inner wall of the boiler. Preferably, the fixing tip is made of an elastic material, for example silicone or EPDM.

Longitudinally reinforcing ribs are formed on the water jet, both on the extended upper end and on the extended lower end.

According to the invention, a boiler with a cold water inlet from above is also provided, comprising the inlet nozzle for a top-supply boiler described herein, which is connected via its connecting nozzle to the supply pipe of the boiler.

The upper part of the outer housing is formed as a hemisphere, to the lower end of which is connected a middle cylindrical section, to the lower end of which is attached a conical section, the wider end of which is oriented to the inner wall of the boiler.

The elongated lower end of the water jet is extended beyond the lower plane of the conical section of the housing, and to said elongated lower end of the water jet is attached a fixing nozzle with a rounded configuration, which fixing nozzle is to rest on the inner wall of the boiler.

An advantage of the invention is that it effectively controls the process of mixing hot and cold water during the use of a top-fed boiler, while maintaining the laminar flow of the inflow into the water tank of the boiler.

Another advantage is that it significantly limits the mixing of the incoming cold water with the already heated water, and achieves a high efficiency of the useful volume of the boiler, ie a larger amount of mixed water is achieved at the same volume as the boilers with upper power supply located on the floor and in those mounted on the wall.

Explanation of the attached figures

Figure 1 is a longitudinal section of the inlet nozzle for a boiler.

Figure 2 is a sectional view of the boiler itself with an inlet nozzle located therein.

Figure 3 is a cross section in AA of Figure 1.

Figure 4 is a cross-sectional view of a water jet with a nozzle.

An embodiment of the invention

The inlet nozzle for a top-supply water heater includes a deflector with an outer housing 1, at the upper end of which an inner tube 4 is located. It is connected to a connecting nozzle 2. To the lower end of the inner tube 4 is connected a water jet 5 with an extended upper end 6 with outlets for water and an elongated lower end 12 for determining the distance between the outer housing 1 and the inner wall of the boiler. The upper part of the outer housing 1 is formed as a hemisphere 7, to the lower end of which is connected a middle cylindrical section 8. To it is attached a conical section 9, the wider end of which is oriented to the inner wall 10 of the boiler 11. of the water jet 5 is extended beyond the lower plane 13

BG 67277 Bl of the conical section 9. A locking nozzle 15 with a rounded configuration is attached to the elongated lower end 12 of the water jet 5. This fixing nozzle 15 is supported in the inner wall 10 of the boiler 11. On the water jet 5, both on the extended upper end 6 and on the extended lower end 12, longitudinally reinforcing ribs 14 are formed.

The above-described inlet nozzle for a top-supply boiler is used in a boiler with a cold water inlet from above, the nozzle being connected by its connecting nozzle 2 to the supply pipe 3 of the boiler.

The upper part of the outer housing 1 is formed as a hemisphere 7, to the lower end of which is connected a middle cylindrical section 8, to the lower end of which is attached a conical section 9, the wider end of which is oriented to the inner wall 10 of the boiler 11. The extended lower an end 12 of the water jet 5 is extended beyond the lower plane 13 of the conical section 9 of the housing, and to said elongated lower end 12 of the water jet 5 is attached a fixing nozzle 15 with a rounded configuration, which fixing nozzle 15 is for resting on an inner wall 10. on the boiler 11.

Use of the invention

When water enters the boiler 11, thanks to the water jet 5 the direction and speed of the cold water is directed, ensuring its calm and even distribution. Due to the shape of the outer housing 1, the separation of the two layers - hot and cold water at the bottom of the boiler 11 is ensured. Due to the fact that the elongated lower end 12 of the water jet 5 is outside the lower plane 13 optimal distance between the inner wall 10 of the boiler 11 and the lower plane 13 of the conical section 9, which ensures an economical mode of mixing hot and cold water. The locking nozzle 15 with a rounded configuration does not allow damage to the inner coating of the boiler during transport and installation.

Description of positions

1. Outer housing

2. Connecting tip

3. Supply pipe

4. Inner tube

5. Water jet

6. Upper end of the water jet

7. Hemisphere

8. Middle cylindrical section

9. Cone-shaped section

10. Inner wall

11. Boiler

12. Extended lower end of the water jet

13. Lower plane

14. Reinforcing ribs

15. Fixing nozzle

Claims (8)

An inlet nozzle for a top-supply boiler, comprising a deflector with an outer housing (1), at the upper end of which an inner tube (4) is located, connected to a connecting nozzle (2) attached to the upper end of the outer housing (1) for connection to the supply pipe (3) of a boiler, characterized in that a water jet (5) with an extended upper end (6) with water outlets and an extended lower end (12) is connected to the lower end of the inner pipe (4) ). Boiler inlet nozzle according to claim 1, characterized in that the upper part of the outer housing (1) is formed as a hemisphere (7). to the lower end of which a middle cylindrical section (8) is attached. Boiler inlet nozzle according to claim 2, characterized in that a conical section (9) is attached to the lower end of the middle cylindrical section (8) of the outer housing (1). Boiler inlet nozzle according to claim 1, characterized in that the elongated lower end (12) of the water jet (5) is extended beyond the lower plane (13) of the conical section (9), as to said elongated lower end (12). ) of the water jet (5) is attached a fixing nozzle (15) with a rounded configuration, which fixing nozzle (15) is for resting in the inner wall (10) of the boiler (11). Boiler inlet nozzle according to Claim 4, characterized in that longitudinally reinforcing ribs (14) are formed on the water jet (5). Boiler with cold water inlet from above, characterized in that it comprises an inlet nozzle for a boiler with top supply, as defined alternatively in claims 1-5, which is connected by its connecting nozzle (2) to the supply pipe (3). ) on the boiler. Cold water inlet boiler from above according to claim 6, characterized in that the upper part of the outer housing (1) is formed as a hemisphere (7), to the lower end of which a middle cylindrical section (8) is connected, to which a lower end is a cone-shaped section (9), the wider end of which is oriented towards the inner wall (10) of the boiler (11). Cold water inlet boiler from above according to claim 7, characterized in that the elongated lower end (12) of the water jet (5) is extended beyond the lower plane (13) of the conical section (9) of the housing, as to said elongated lower end (12) of the water jet (5) is attached a fixing nozzle (15) with a rounded configuration, which fixing nozzle (15) is for resting on the inner wall (10) of the boiler (11).