JPH0378904B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a floor steam heating device used to heat flooring prior to stripping to facilitate flooring stripping.

[Background of the invention]

Floors covered with adhesives such as P-tiles, long rugs, carpets, etc. will become noticeably damaged and dirty over the years after the flooring is installed, so in this case, the flooring should be replaced. It becomes necessary.

Replacing the above-mentioned flooring requires peeling off the existing flooring, and for this reason conventionally the flooring has been removed using hand tools such as scrapers or vibrating tools. . However, such work is not only inefficient, but also has the disadvantage that there is a risk of damage to adjacent areas that do not require replacement, and that the surface after peeling cannot be finished neatly.

In areas that have been in place for many years, areas that have been trodden down such as walkways and stairs, and areas where heavy objects have been installed for a long time, the adhesion is generally strong and it is difficult to remove the flooring. On the other hand, in the winter, both the adhesive and the flooring material harden to a high degree, making removal work even more difficult than in the summer. Furthermore, as adhesives have improved and their adhesive strength has become stronger, the task of removing flooring materials has become increasingly difficult.

By the way, the above-mentioned flooring materials and adhesives soften when heated appropriately, making it easier to remove them. Therefore, the floor surface is heated prior to the removal process using an electric iron-like floor heater equipped with a heating plate. An attempt is being made to do so. However, if the floor surface is uneven, an insulating air layer is formed, which reduces the efficiency of heat transfer from the heating plate to the flooring material.On the other hand, if the heating temperature of the heating plate becomes too high, the flooring material may fuse to the heating plate. Burning of the flooring may cause other problems. There is also the problem that heating with an open flame involves the risk of fire, so it cannot be used with confidence.

[Purpose of the invention]

In view of the above-mentioned actual situation, the present invention has been proposed to heat the floor material with steam to a sufficient extent to reach the adhesive before stripping the flooring, without the drawbacks and problems of the above-mentioned conventional techniques.
This was done after experimentally confirming that this is the best heating method that allows flooring to be easily removed.

That is, an object of the present invention is to instantaneously vaporize non-polluting water with a relatively large heat capacity to a high temperature using the principle of high-frequency induction heating as a means of heating a floor surface, and to apply the high-temperature vapor to an induction-heated bottom plate and floor. It is an object of the present invention to provide a floor surface steam heating device capable of heating the floor material to a necessary and sufficient degree to facilitate stripping work by ejecting steam between the floor material and the floor material.

[Summary of the invention]

In order to achieve the above object, the present invention uses as a heat source an iron plate itself that is heated by electromagnetic induction heating, as a floor heating plate and as a heating plate for steam generation, and the heating iron plate itself has the following: This was completed by focusing on the fact that the requirements are very effective as components of the device of the present invention.

(1) After power is supplied, it instantaneously reaches a high temperature and has good power-to-heat conversion efficiency in converting power to heat.

(2) It has good thermal conductivity, and the entire heat generating surface of the iron plate can be made into contact with water.

(3) It can be constructed into a flat container shape that is convenient for floor heating work.

(4) It has sufficient structural strength and functionality for floor heating work.

That is, the configuration of the present invention is to construct a flat closed container body consisting of a bottom plate having a recess in the center, a peripheral wall, and a lid plate made of an iron plate, and to provide a steam jet pipe in the center of the container body and to provide a high-frequency induction wave inside the container body. A labyrinth structure in which an electromagnetic coil is housed and arranged, and a labyrinth structure having an inlet chamber and an outlet chamber, and a preheating pipe coil having an inlet and an outlet and covered with a heat insulating material are stacked on the top of the lid plate. The steam ejection pipe is arranged to open into the recess of the bottom plate and the outlet chamber of the labyrinth structure, and the preheating pipe coil has an inlet connected to a water tank via an injection pump and an outlet thereof. is characterized in that it opens into the entrance chamber of the labyrinth structure.

[Embodiments of the invention]

Hereinafter, embodiments will be described in detail with reference to the drawings.

FIG. 1 is a cross-sectional view showing the main parts of this embodiment. In the figure, 1 is a high frequency electromagnetic induction coil, and 2 is a flat sealed container body made of an iron plate. The container body 2 can be made into any rectangular or circular shape, and is composed of a bottom plate 2a having a curved recess 3 in the center, a peripheral wall 2c, and a lid plate 2b. A steam ejection pipe 4 is provided that opens on the lower surface of the lid plate 2b and the upper surface of the lid plate 2b.

A high frequency electromagnetic induction coil 1 is housed inside the container body 2. The high-frequency electromagnetic induction coil 1 consists of 20 to 50 spiral turns of heat-resistant coated copper wire, which is covered with a heat insulating material 6', and its feeding end is connected to the electronic control unit 13 shown in FIG. During heating work, a high frequency current of several kHz to about 50 kHz is supplied.

A labyrinth structure 5 is disposed above the lid plate 2b of the container body 2. The labyrinth structure 5 forms a maze-like high-temperature steam generation chamber as shown in FIGS. 3a, b, and c, which is continuous from the entrance chamber 5a to the exit chamber 5b by the partition wall 5c, case 5d, and cover plate 2b.

On the upper surface of the case 5d of the labyrinth structure 5, preheating pipe coils 7 are arranged in a stacked manner, and the preheating pipe coils 7 are covered by a case 8 lined with a heat insulating material 6.

The preheating pipe coil 7 has an outlet 7b that opens into the inlet chamber 5a of the labyrinth structure 5, and an inlet 7a led out from the case 8. It is connected to tank 10.

FIG. 2 is a side view of the overall appearance of the steam heating device described above, and the water injection pump 9 and water tank 10 described above are housed in a box 11 at the top of the heating device main body. Note that 12 is a handle attached to the heating device body for convenience in floor heating work, 13 is an electronic control unit provided on the handle 12,
14 is a cord for connecting to a power source.

It is sufficient that the water injection pump 9 has a capacity that can supply approximately 1 hour of water per hour, and therefore the water tank 10 only needs to have a capacity corresponding to this. In addition, the iron plate bottom plate 2a and lid plate 2b that make up the container body 2 are heated by induction by passing a high-frequency current through the high-frequency electromagnetic induction coil 1, and work as a heating element at around 300°C in a few seconds. The temperature can be raised to around 500°C by adjusting the electronic control unit as necessary.

The operation of the embodiment described above will be explained below.

The cord 14 is connected to a power source, and a high-frequency current is applied to the high-frequency electromagnetic induction coil 1 via the electronic control unit 13 to induction heat the bottom plate 2a and lid plate 2b made of iron plates that constitute the container body 2. On the other hand, water injection pump 9
The water in the water tank 10 is supplied to the preheating pipe coil 7 about once every hour, and the preheated water is dripped into the entrance chamber 5a of the maze structure 5 from the outlet 7b. The labyrinth structure 5 forms a maze-like high temperature steam generation chamber that extends over the entire upper surface of the cover plate 2b from the entrance chamber 5a to the outlet chamber 5b, and the cover plate 2b is heated by induction and has a sufficiently high temperature. , entrance room 5
The water dripping into the pipe a has already been preheated by the preheating pipe coil 7, so it instantly turns into high-temperature steam, and by the time it passes through the labyrinth and reaches the exit chamber 5b, it turns into dry superheated steam, and the steam is released from the steam jet pipe 4. It often squirts.

The dry heated steam ejected from the steam jet pipe 4 is temporarily stored in the curved recess 3 at the center of the lower surface of the bottom plate 2a and becomes slightly pressurized.
A thin layer of steam is formed between the container body 2 and the bottom surface of the container body 2.
It will be emitted from the four laps of the

The induction-heated bottom plate 2a itself functions as a heating element, and together with high-temperature superheated steam, the flooring material 1
5. It is possible to heat the adhesive 16 and even the surface of the floor 17 to an extent necessary and sufficient for the floor material removal work. Moreover, since a layer of superheated steam exists between the bottom plate 2a serving as a heating element and the surface of the flooring material 15, there is no risk of the flooring material being burnt or fused.

In the above embodiments, the case where the floor surface is heated for floor material removal work was mainly explained.
It goes without saying that this device can be equally applied to walls that have been covered with walls, and is extremely effective, for example, when relining the bottom and walls of a swimming pool or the like.

〔Effect of the invention〕

According to the present invention, the following effects can be achieved.

(1) Labor-saving effect of floor material removal work Since the floor surface can be heated to the necessary and sufficient extent only in the areas where work is required, the labor and time required for removal work can be reduced to a fraction of the conventional work. .

(2) Energy saving effect It has high power-heat exchange efficiency, can be operated within the range of household electricity consumption, and uses only water as a consumable material.

(3) Non-pollution effect No noise is emitted during floor heating work.
The high-frequency electromagnetic induction coil is sealed inside a flat steel container, so there is no interference with radio waves.
Furthermore, since the amount of water vapor generated is about 1 per hour, there is no risk of excessive humidity, and since no other harmful consumables are used, there is no pollution caused by them.

(4) Safety Effects There is no risk of fire because the heating is done using high-temperature steam, and there is no risk of injury because there are no powered moving parts. Also, since the water in the water tank can remain at room temperature, there is no risk of burns from boiling water if the device falls over.

(5) Convenience in handling The device is small and lightweight, and does not require skill to operate.
It has the advantage of being clean and having no consumable parts.

[Brief explanation of drawings]

FIG. 1 is a side sectional view showing an outline of an embodiment of the present invention;
Figure 2 is an external side view of the same embodiment, Figure 3a,
b and c are plan views showing different examples of the maze in the present invention. DESCRIPTION OF SYMBOLS 1... High frequency electromagnetic induction coil, 2... Flat airtight container body, 2a... Bottom plate, 2b... Lid plate, 2c... Side wall, 3
...Curved recess, 4...Steam ejection pipe, 5...Maze structure,
5a...Inlet chamber, 5b...Outlet chamber, 6', 6...Insulating material,
7... Preheating pipe coil, 8... Case, 9... Water injection pump, 10... Water tank, 11... Box, 1
2...Handle, 13...Electronic control unit, 14...Cord, 1
5...floor material, 16...adhesive material, 17...floor.

Claims (1)

[Claims] 1. A flat closed container body is constructed of a bottom plate having a recess in the center, a peripheral wall, and a lid plate made of iron plate, and a steam ejection pipe is provided in the center of the container body, and a high-frequency induction electromagnetic coil is housed inside the container body. , a labyrinth structure having an inlet chamber and an outlet chamber, and a preheating pipe coil having an inlet and an outlet and covered with a heat insulating material are arranged in a stacked manner on the top of the lid plate, and the steam ejection pipe is opened to the recess of the bottom plate and the outlet chamber of the labyrinth structure, and the preheating pipe coil has its inlet connected to a water tank via an injection pump, and its outlet connected to the inlet of the labyrinth structure. A floor steam heating device characterized by opening into a chamber.