JPH02187513A - Installation method of burner instrument - Google Patents

Abstract

PURPOSE:To simplify the work of regulating a damper to a great extent by a method wherein the damper for adjusting the ratio of an air quantity blown to a main air circulating path and a bypass air circulating path is provided at a branch point formed by both circulating paths, and the ratio of the air blow quantity is set by adjusting the damper correspondingly to the air resistance of an exhaust pipe connected to the circulating paths. CONSTITUTION:In the vicinity of the downstream side of an outlet port 11, a damper 5 is provided at a branch point A formed by a main air circulating path 2 and a bypass air circulating path 4, and the outlet bort 11 is opened underneath the damper 5 which consists of a movable piece 52 having a fulcrum shaft 51 at the upper part of the branch point A. The free end of the movable piece is opposed to the outlet port 11, and the damper 5 is rotatable in the range of a given angle with the fulcrum shaft 51 as a center. When the tip end of the movable piece 52 is inclined toward the main air circulating path 2 side, an air blow quantity on the main air circulating path 2 side is controlled, and an air blow quantity on the bypass air circulating path 4 side increases. On the contrary, when the tip end of the movable piece 52 is inclined toward the bypass air circulating path 4 side, the distribution ratio of an air blow quantity becomes reverse. If the distribution ratio at each of moving stages of the movable piece 52 is set to a ratio related to the length of an exhaust pipe 3, the adjustment of the damper becomes further easier.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application and Summary of the Invention] The present invention provides a method for burning tAl! This article relates to the installation method of equipment, especially the installation method of equipment that adopts the forced combustion method.A damper for adjusting the distribution ratio is provided at the branch point of the air circuit of the forced combustion equipment, and by adjusting this damper, the combustion equipment can be This makes it possible to easily ensure combustion conditions that match the length of the exhaust stack connected to the exhaust pipe, and simplifies the installation work of the equipment.

[Prior art and its problems] As a combustion appliance that employs a forced combustion method, the one shown in Fig. 6 is known. A bypass circuit (4) is provided separately from the main air blowing circuit (2) that runs from the burner (1) through the burner (21) to the connection part of the exhaust stack (3), and the air flowing through this bypass circuit (4) is Also mixed into the exhaust pipe (3) from the contact portion. This has the advantage that the cold air from the bypass circuit (4) is mixed with the exhaust from the main blower circuit (2), and the temperature of the exhaust in the exhaust stack (3) can be kept relatively low. Therefore, when installing the device, there is no need to worry about the heat resistance of the wall through which the exhaust pipe (3) passes, and in this respect, the conditions for setting the device are relaxed.

However, with this conventional type, the tolerance range for the length of the exhaust pipe (3) connected to the combustion appliance is small, and if an exhaust pipe (3) shorter than this tolerance is connected, the combustion exhaust will not be exhausted. If the passage resistance when passing through the cylinder (3) is small, it will cause an excess of combustion air, and conversely, if the combustion air is longer than the above-mentioned allowable range, it will cause an air shortage.

Therefore, it is necessary to set the passage resistance of combustion exhaust gas from the installation location of the device to the end of the exhaust stack (3) within the above-mentioned allowable range. It was necessary to make adjustments and adjust the length of the exhaust pipe (3).

It was also necessary to give sufficient consideration to the selection of the installation location of the equipment.

The present invention provides a bypass circuit (4) that bypasses the combustion chamber, separate from the main air blower circuit (2) that runs from the r blower (1) through the burner (21) to the connection part of the exhaust stack (3). In method 1 of installing a forced combustion type appliance in which the air blown through the bypass circuit (4) is mixed on the supernatant side of the connection part of the exhaust pipe (3), the exhaust pipes (3) with different lengths and degrees of bending are used. ) is connected, H8 is to ensure combustion conditions that are compatible with the various exhaust stacks (3) to be connected without changing the installation location of the equipment. Another challenge is to be able to respond quickly to changes in location.

[Technical means] The above vil! The technical means of the present invention taken to solve problem I is to install a damper (r) at the branch point between the main air blower circuit (2) and the bypass circuit (4) to adjust the ratio of air flow to both circuits.
5), and by adjusting the damper (5), the air flow rate is set to correspond to the air resistance of the connected exhaust pipe (3).

[Effect] The above technical means of the present invention operates as follows.

When installing an appliance, first select a location suitable for installing the appliance, that is, a location that is unlikely to be used for other purposes, such as a corner of the room.

Next, a suitable location for exhaust is selected, but at this time there is no need to give much consideration to the length or degree of bending of the exhaust pipe (3).

An exhaust stack (3) is arranged between the exhaust location and the appliance, and the upstream end of the exhaust stack (3) is connected to the exhaust stack connection of the appliance. This directs the exhaust air from the appliance to a predetermined exhaust location. Next, the position of the damper (5) is adjusted according to the length of the exhaust pipe (3) and the combustion state is checked. At this time, if necessary, the damper (5) is readjusted depending on the combustion state. This means that the appliance has been properly installed.

(See Figure 5) [effect] Since the present invention has the above configuration, it has the following unique effects.

When installing the device, simply adjust the position of the damper (5) according to the length and degree of bending of the exhaust pipe (3), so it can be used with various exhaust pipes (3) of different types and lengths. Adjustment work is greatly simplified when installing instruments in a corresponding manner.

Furthermore, even if the length of the exhaust pipe (3) or the like is changed due to a change in the installation location, this can be quickly dealt with simply by adjusting the damper (5).

[Example] Hereinafter, an example of the present invention will be described based on FIGS. 1 to 5.

A water heater will be described as a forced combustion type combustion appliance used in carrying out the method of the present invention.

In the forced combustion water heater shown in Figures 1 to 4, a combustion chamber (22) consisting of a heat exchanger (23) and a burner (21) is used.
) The exhaust pipe (3) is connected above (downstream side), and the empty space below is connected to the bypass circuit (
4) and is connected to the outlet (11) of the blower (1).

The air blower circuit from below the burner (21) through the combustion chamber (22) to the heat exchanger (23) becomes the main air blower circuit (2).
The bypass circuit (4) is arranged in such a manner that the lower part of the burner (21) and the heat exchanger (23) are connected in communication. A damper (5) is provided at the branch point (A) between the main blower circuit (2) and the bypass circuit (4) near the downstream side of the discharge port (11), and the discharge port (11) opens below it. .

The damper (5) has a fulcrum shaft (5) above the branch point (A).
1), the free end of this movable piece faces the discharge port (11), and the damper (5) rotates within a certain angle range around the fulcrum shaft (51). It is possible. This makes its posture variable.

Specifically, as shown in FIG. 2, in the damper (5), one of the fulcrum shafts (51) protrudes outward from the wall surface of the blower circuit configuration wall, and the arms (53) are connected to this protruding end. At the same time, a fixing bolt (54) is screwed into the free end of this arm (53), and the tip of this bolt is brought into contact with the outer wall surface of the air blowing circuit.

Therefore, in the push-in combustion type appliance of this embodiment, the angle of the movable piece (52) can be adjusted with the fixing bolt (54) loosened, and after this adjustment, the fixing bolt (54)
When tightened, the tip of this bolt is pressed against the outer wall surface of the air passage, and the arm (53), that is, the fulcrum shaft (51) is fixed in this adjusted state (adjusted position).

In this way, according to the damper device, the movable piece (52)
The posture can be arbitrarily adjusted within the range shown by the two-dot chain line in FIG. 1, and can be fixed in the adjusted state.

Incidentally, by tilting the tip of the movable piece (52) toward the main ventilation circuit (2) side, the amount of air blown toward the main ventilation circuit (2) side can be suppressed.
The amount of air blown to the bypass circuit (4) side increases. Conversely, if it is tilted toward the bypass circuit (4), the distribution ratio will be opposite to the above.

In the water heater of the above embodiment, the fulcrum shaft (51) is connected to the branch point (A
), but it is located at the bottom of the branch point (^), that is, the movable piece (52) is attached to this fulcrum shaft (51).
It may also be configured such that it extends upward from the top.

Further, as the posture adjustment means for adjusting the posture of the movable piece (52), a known adjustment method may be adopted in addition to the method of the above embodiment, and a stepwise adjustment method may also be used.
In particular, when adopting this stepwise adjustment method, if the distribution ratio of each step is set to a ratio that is related to (adapted to) the length of the exhaust pipe (3), it is possible to adjust the damper when installing the equipment. becomes even easier.

As shown in FIGS. 3 and 4, this step-by-step adjustment method involves making concavities and convexities continuous on the fixing surface where the tip of the fixing bolt (54) faces, and inserting the fixing bolt (54) into this recess.
Make sure that the tip of the
As described above, the value may be set in relation to (adapted to) the length of the exhaust pipe (3).

In this case, as shown in Fig. 5, the exhaust pipe (3
) If the tip of the fixing bolt (54) is aligned and fixed at a position corresponding to the length of the bolt (54) and the appliance is installed in this state, a predetermined combustion state will be ensured. In addition, the exhaust pipe (3
), depending on the degree of bending of the exhaust pipe (3), the optimum air flow distribution ratio can be obtained by making a final fine adjustment, and the length of the exhaust pipe (3) can be adjusted under the conditions where the function of suppressing the temperature of the exhaust pipe (3) is achieved. Accordingly, good combustion of the burner (21) can be ensured.

It goes without saying that the procedure described in the section of the above-mentioned operation can be adopted as the procedure for installing the apparatus having the above-mentioned structure.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a combustion appliance used for carrying out the method of the present invention, and FIG. 2 is a sectional view of a damper portion. Figures 3 and 4 are explanatory diagrams of modified examples of this damper part,
Fig. 5 is an explanatory diagram of the actual installation of a combustion appliance, and Fig. 6 is an explanatory diagram of a conventional example. (1)...Blower (11)...Discharge port 2)...Blower circuit 22)...Combustion chamber 4)...Bypass circuit 5)...Damper A)...Branch point

Claims (1)

[Claims] A bypass circuit (4) that bypasses the combustion chamber is provided separately from the main blower circuit (2) that runs from the blower (1) through the burner (21) to the connection part of the exhaust stack (3).
) in the installation method of a forced combustion type appliance in which the blast air is mixed upstream of the connection part of the exhaust pipe (3), the main ventilation circuit (2) and the bypass circuit (4) of the combustion appliance are mixed.
) A damper (5) is installed at the branch point between the two circuits to adjust the air volume ratio to both circuits, and by adjusting this damper (5), the air volume ratio is adjusted to correspond to the air resistance of the connected exhaust pipe (3). How to install combustion appliances.