JPH0232994Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] This invention relates to a device for equalizing fluid temperature in a feed line.

[Prior art]

Normally, pressurized spray burners that use heavy oil as fuel are
Good spray combustion is achieved by heating the fuel and lowering its viscosity.

The mainstream heating method for small boilers, etc. is to use an electric heater.
General oil temperature control uses a temperature sensor to control the heater.
Since it is performed in an ON-OFF operation, the oil temperature may fluctuate over time, and the range of fluctuation may reach several tens of degrees. In such a case, the kinematic viscosity of the fuel fluctuates (more than 10 cSt), and it is known that this has a great effect on the spray combustion in the burner.

As a solution to the above-mentioned drawbacks, as shown in FIG. There is a device, as shown in FIG. 7, which aims at uniform heating by making the heating flow path 19 meander for a long time, and its effectiveness has been confirmed. However, in order to achieve sufficient effectiveness with these devices, it is necessary to increase the volume of the stirring chamber, or to provide a heating channel that can effectively heat the surrounding area using a heater. The enlargement of
An increase in production costs cannot be avoided. Furthermore, it is necessary to make a number of devices with different sizes depending on the flow rate.

[Summary of the idea]

In order to solve the above-mentioned practical problems, this idea aims to equalize the temperature of fuel heated by a heater and which fluctuates over time in the feed pipe. , a substantially T-shaped piping member having a feed port formed on one side, a connecting member having an inlet provided at one end of the piping member, and a cylindrical shape with a base end attached to the other end of the piping member. The member, the sealing member attached to the tip of the cylindrical member, the approximately T-shaped piping member, and the cylindrical member are installed substantially coaxially with each other with a return flow path inside the inlet. The present invention is characterized in that it is provided with a heat transfer pipe that functions to guide the introduced fuel oil or the like into the return chamber inside the sealing member.

[Embodiments of the invention] Examples of the invention will be described below with reference to the drawings. In FIG. 1, 3 is a T-shaped elbow, and a bushing 2 and a steel pipe 4 are connected to each end. A spiral pipe 6 is arranged concentrically inside the steel pipe, and one end of the spiral pipe 6 is brazed to a bushing 11.
and the other end is in a state of being long and protruding in the opposite direction, and is substantially covered with the steel pipe 4. 8
is a cap that seals the steel pipe.

In the above configuration, the fuel heated by the heater 13 and causing temperature fluctuations flows in from the inlet 1, passes through the center hole (outward path) 5 of the spiral tube 6, reaches the return chamber 7, and then flows through the spiral tube 6. The water is supplied to the spray nozzle 14 from the supply port 10 through a return flow path (return path) 9 on the outer periphery of the spray nozzle 6 . At this time, the fuel is stirred by the unevenness 12 on the wall of the spiral tube 6, and heat is exchanged between the inner and outer fuel between the center hole 5 and the return flow path 9 via this tube wall, so that the temperature is uniform. The aim is to

In this invention, since the spiral tube 6 stirs the fluid by the unevenness 12 on the tube wall,
Of course, it can be replaced with other materials as long as they produce the same stirring effect.For example, as shown in FIGS. It is also possible to use one equipped with a fin tube 17 or a fin tube 17.

Furthermore, if a flexible tube 21 or the like is used, various shapes can be formed as shown in FIGS. 4 and 5, and it can be adapted to any situation.

[Effect of idea]

Since this invention has the above-described configuration, the following practical effects can be obtained.

(1) Since it can be freely installed as a part of the piping in the middle of the piping for supplying fuel, it does not require extra installation space.

(2) It has the advantage of being manufactured as a piping element and can accommodate a wide range of flow rates simply by changing the length of the pipe, which significantly reduces manufacturing and facility costs.

(3) Due to its structure, it does not cause liquid leakage and has high practical value in terms of handling and durability.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional view showing an embodiment of this invention, Figs. 2 to 5 are enlarged views showing modifications of the main parts of this invention, and Figs. 6 and 7 are schematic longitudinal sectional views showing a conventional device. It is a front view. DESCRIPTION OF SYMBOLS 1...Inflow port, 2...Butching, 3...T-shaped elbow, 5...Center hole (outward path), 7...Return chamber, 8...Cap, 9...Return channel (return path), 10... ...feeding port.

Claims (1)

[Scope of utility model registration request] A substantially T-shaped piping member 3 with a feed port 10 formed on one side, and an inlet 1 provided at one end of the piping member.
a connecting member 2 having a connecting member 2, a cylindrical member 4 having a proximal end attached to the other end of the piping member, a sealing member 8 attached to the distal end of the cylindrical member, and the approximately T-shaped piping member and the cylindrical member. is installed substantially coaxially with a return flow path 9 inside thereof, and has a heat transfer function that functions to guide fuel oil, etc. introduced from the inlet into the return chamber 7 inside the sealing member. A temperature equalization feed pipe device for fuel oil, etc., comprising a pipe 6.