JPS603133B2 - External instantaneous gas water heater that can generate steam - Google Patents

Description

[Detailed Description of the Invention] The present invention adds a steam generation function to an instantaneous gas water heater that can instantly provide high-temperature hot water by rotating an operation dial when desired, and can use normal hot water. In addition, it is possible to efficiently return the key to the bath, various safety mechanisms are provided to prevent dangers due to the addition of a steam generation function, as well as prevention of damage to equipment due to residual water freezing in extremely cold weather and water cut-off. Equipped with a safety mechanism that also prevents sewage from flowing back into the water mains, etc.
Furthermore, the operation dial located inside the room can be used to operate the flashing fire of the moat supply equipment installed outdoors, as well as the operation of the safety mechanism to prevent the dangers associated with the steam generation and to prevent the residual water from freezing, as well as a number of other functions. To provide a new, highly safe, external instantaneous gas water heater capable of generating steam that can perform all operations such as opening and closing an on-off valve device for switching a hot water supply circuit.

The present invention will be explained below with reference to an illustrated example. In FIG. For example, the operating diamond taka is installed at an appropriate position on the wall of the room.

As will be explained in detail later, the device of the present invention is capable of controlling the pilot gas burner and the main gas burner with flashing lights, supplying water to the hand water pipe, opening and closing the automatic water draining device, opening and closing the stable hot water discharge device, and the shower. head, hot water tap,
It is constructed so that all of the numerous operating parts, such as opening and closing the hot water supply circuit to the bathtub, can be operated indoors, but in order to prevent the user from operating the operating parts incorrectly, each operating part must be individually operated. It is desirable to have an operating device attached.

On the other hand, the wall area of a bathroom is often narrow, and it is not desirable from the aesthetic point of view or from the viewpoint of piping construction to arrange a large number of operating knobs on the bathroom wall. In the device of the present invention, as shown schematically in FIG. 1, two operating handle shafts la, lb, and 2
Two operating devices 1 and 2 consisting of a and 2b are used.
The detailed structure of the operating device is described in a patent application filed by the present applicant in 1973.
Although it is described in the specification of No. 2-59159 and the specification of Tokko No. 46361/1983 filed at the same time as this application, to briefly explain ~ the operating handle shaft wing a of the operating device 1; Each of the operating turtles a' and lb' is fixed to one end that protrudes into the bathroom so as to be rotatable at the same time and individually, and the other end that protrudes to the outside across the bathroom wall. Link mechanisms 1a'' and lb'' consisting of a rotating wheel and a chain are fixed, and the operating handle shaft la is connected to the gas circuit's solenoid valve 8, main gas valve 17, pilot gas valve 9, and ignition via the link mechanism la''. It is connected to the switch 10 and the automatic water draining device 33 to perform flashing operation of the gas circuit and automatic water draining operation, while the other operating handle shaft lb is connected to the linkage mechanism amount b.
'', which is connected to the auxiliary gas valve 19 for the main gas burner 136, which is additionally used for ignition when steam is generated or when it is extremely cold, among the two divided main gas burners, and when necessary, the gas valve 19 is The detailed structure of the above-mentioned operating device is referred to in the specification of Jiso Sho 52-59159.The detailed structure of the other operating device 2 is also referred to in the specification of Tokuto Sho 4$-46361. Referring to this document, but briefly referring to the attached drawings, the device includes operating handle shafts 2 fixedly attached to one end of operating handle shafts 2a and 2b projecting into the chamber so as to be rotatable in the same D-shape and individually. and 2b', circular cam plates 2a'' and 2b'' respectively fixed to the other end protruding outside the bathroom across the wall, and a rotary wheel and a chain at the tip further than the cam plate fixed position. The circular cam plates 2a'' and 2b'' face each other parallel to each other, and a second link mechanism 2c is provided.
As shown in the figure, on the opposing plane of each cam plate, a row or a plurality of rows of arcuate protrusions P are arranged along the same circle having a different radius with respect to the center line X of the handle shaft for the operation. has.

In the operating device 2, an on-off valve device 34 for a thermal wound supply V supply flow path 34 leading to a shower head 39 as shown in FIG.
a, the on-off valve device 35a of the hot water supply confluence passage 35 leading to the hot water tap 40, the on-off valve device 36a of the steam supply flow path 36 leading to the hot water outlet 37 with a silencer of the bathtub, the on-off valve device 35 of the bypass waterway 43 and the hot water Validation device 4 turtle (part surrounded by dotted line B)
is separated from the water heater main body (the part surrounded by dotted line A), and as shown in FIGS. 2 to 4, each valve pupil is separated between two circular cam plates 2a'' and 2b''. The valve pulp of the circular cam plate extends so as to vertically contact the top surface of the arcuate protrusion P, and is arranged around the operating handle tree 2a.

Note that the portion surrounded by the dotted line B■ is located at a higher position than the main body of the wound care device (dotted line A portion) and the hot water outlet portion such as the bathtub. The valve shafts of the on-off valve devices 34a, 36a, 35a, 45a are arranged in order from the outer periphery of the circular cam plate 2a'' inward in the radial direction from the first row of arcuate protrusions P, and the second row of arcuate protrusions P and No. 3.
Row arcuate protrusions P3, P3'"4th row arcuate protrusions P4, P
4', and the valve plate of the temperature control valve device 44 is aligned with the protrusion P5 of the circular cam plate 2b''.

The operating handle shaft 2a is further fixed at its tip and connected via a link mechanism 2C to a water supply valve 28 provided in a water source valve 22 and a main water pipe 28'. Thus, the rotation of the operating device 2 opens and closes the water tap, opens and closes the hot water valve 28 for selectively generating hot water and steam, and connects the shower head 39, hot water supply spear turtle 0, and hot water outlet 37 of the bathtub. Simulation of three types of hot water supply circuits, and stable hot water discharge device 42,
43, 44, and 45 and temperature adjustment operations can be performed.

Note that detailed operating procedures for the apparatus of the present invention using the operating device will be described later.

In addition to the specific example described above, the operating device can also be configured by an electric circuit. The device of the present invention opens the communication hole by rotating the operating handle la of the operating device 1 shown in FIG. Then, gas is introduced from the gas inlet 5, and as a pilot gas burner 6, which will be described later, is ignited, the flow hole is closed while the pilot gas burner is ignited in cooperation with a thermocouple 7 that generates an electromotive force by heating the pilot gas burner 6. However, due to gusts, etc., pilot gas burner 6
When the flame goes out, the thermocouple 7 loses its electromotive force, and accordingly, the electromagnetic valve 8 is configured to automatically close the flow hole, and the electromagnetic valve 8 closes and moves to open the flow hole. A pilot is supplied with gas through a pilot gas valve 9 and is ignited by an ignition plug 12 which closes a switch 10 of an ignition circuit in conjunction with the pilot gas valve gate and emits a spark by the electromotive force of an ignition device 11. A gas circuit including a gas burner 6 is provided.

A thermal fuse 13 and an ignition indicator 1 are provided for the solenoid valve 8.
4 is connected, and when the electromagnetic valve 8 is excited by the recording force of the thermocouple 7, the ignition indicator 14 changes from black to red, confirming the ignition state of the pilot gas burner 6.

The ignition indicator 14 is installed along with the operating devices 1 and 2 on a wall in the bathroom. Ignition circuit switch 1,
It is opened by slightly rotating the operating lever la' of the operating device 1 from the "ignition" position toward the "extinguishing" position, thereby stopping the spark discharge of the spark plug 12.
At the same time, the common operating valve of each gas valve is disengaged from the stop mechanism that prevents the pilot gas valve 9 from being extended further from the closed state, and the operating valve la' is further moved 900 degrees to the left. , that is, the "extinguishing" position, can be rotated to the left to a position of 180 degrees.

FIG. 1 shows an example of the apparatus of the present invention, in which the gas circuit also includes a first main gas burner 15 and a second main gas burner 16 which are divided into two parts, and the first main gas burner 15 is connected to the operating mill la'. Gas is supplied through the main gas valve 17, which is closed by rotation up to 180 degrees in the left direction, and the gas valve 18, which is opened and closed by a hydraulically responsive gas valve device 27, which will be described later, and is ignited by the pilot gas burner 6, which has already been ignited. Ru.

When necessary, the second main gas burner 16 is supplied with gas through the auxiliary gas valve 19, which is opened by rotating the operating knob lb' of the operating valve 1 180 degrees to the left.
It is additionally ignited to heat the heat exchanger 21.

The main gas burner may be of a split type as shown in the illustrated example, or it may be a single main gas burner as in the normal type.

In the illustrated example of the inventive arrangement, the water circuit includes a main water pipe 20 that is connected to a water conduit via a diaphragm chamber 25 of a hydraulically responsive gas valve device 27 described below on the one hand and leads to a heat exchanger 21 on the other hand; The main water pipe is equipped with a water source valve 22 in a pipe line upstream of the hydraulically responsive gas valve device, and a hot water valve 28 in a pipe line downstream from the hydraulically responsive gas valve device.

The water pressure-responsive gas valve device 27 is integrally equipped with a water pressure regulating valve 23 and has a diaphragm chamber 2 containing a diaphragm 24 that swings by the pressure of water flowing in through the pressure yielding valve 23.
5, and a lotus pestle 26 for transmitting the swinging motion of the diaphragm 24 to the gas valve 18 to open and close the gas valve.

The water valve 22 is closed by the rotation of the operating knob 2a' of the operating device 2 in the left and right directions up to 1200 degrees, and is closed by returning the knob to its original position, that is, the "stop" position.

The hot water valve 28 is also closed by rotating the operating knob 2a' of the operating device 2 to the left by 120o and to the right by 600o, and by rotating the operating knob 2a' to the right by 120o.

According to the present invention, “the present invention device is a hydraulically responsive gas valve device 27
For the main water pipe 20 that passes through the primary water pressure chamber 253 of the diaphragm chamber 25 and reaches the heat exchanger 21, there is a water passing machine that is inferior to the secondary water pressure chamber 25b of the diaphragm chamber 25 at a stage downstream from the installation position of the hot water valve 28. 20a joins,
A steam generation flow path 30 having a needle valve 29 adjusted to an optimum diameter for steam generation in the middle between the primary water pressure chamber 25a and the confluence point in parallel with the main water pipe 201, and a heat exchanger. Diaphragm valve 3 that operates when the pressure of the steam generated in 21 exceeds a predetermined value.
1 in the middle thereof. Said steam generation flow path 30 and stable steam generation circuit 32
operates as follows.

The pilot gas burner 6 is activated by the operating device 1 as described above.
ignite, and turn the operating knob 2a' of the operating device 2 in the right direction 6.
0o, that is, the "pouring" position, the opening/closing valve device 36a of the hot water supply circuit 36 to the bathtub is opened by the arcuate protrusion P2 of the circular cam plate 2a'', as shown in FIG. At the same time, the water main valve 22 and the hot water valve 28 are opened by the link mechanism 2C shown in FIG. The hot water flows from the hot water valve 28 through the main water pipe 20 to the heat exchanger 2, where it is heated to become hot water and is poured into the bathtub via the on-off valve device 36a.

If the hot water in the bathtub decreases, if the operating knob 2a' of the operating device 2 is further turned to the right 1200, that is, to the "immediate firing" position, the opening/closing valve device 36a will continue to open. (see FIG. 2), and the water valve 22 remains open, but the hot water valve 28 is opened.

In this way, water from the water pipe passes through the needle valve 29 of the steam generation flow path 30 and reaches the heat exchanger 21 from the main water pipe 20, but the amount of water is suppressed by the needle valve 29 to the optimum amount of steam generation. Steam is generated in the heat exchanger 21, and the overflowing water in the bathtub is flooded with the steam.

Now, when the steam pressure rises abnormally due to water pressure fluctuations or other causes, the diaphragm valve 31 of the steam stabilization generation circuit 32 acts with the reverse pressure, and additionally supplies a small amount of water to the heat exchanger through the circuit. Together, the vapor pressure is reduced to normal.

The stable steam generation circuit 32 is used to always generate steam at a constant pressure as described above, but in the event of a sudden abnormal rise accident, the overpressure prevention valve installed in the outlet circuit after the heat exchanger 41 works.

The device of the present invention also includes a drain valve 33 connected to two main water pipes.
It is equipped with an automatic water draining device including a water draining valve 33 that is compatible with the secondary water pressure chamber 25b of the water pressure responsive gas valve pupil 27, and an automatic intake valve 46 provided at the highest part of the outlet moat circuit pipe. The drain valves 33, 33 are both closed by rotating the operating valve a' of the operating device hawker to the left by about 100 degrees, that is, to the "ignition" position, and the drain valves 33, 33 are both closed and the operating valve a' of the operating equipment hawker is turned to the "ignition" position. It is activated by pivoting back to the "stop" position.

That is, the drain valve is automatically turned off at the same time as the water heater is turned off. As an example of the automatic water draining device, a device having a mechanism referred to in Japanese Utility Model No. 52-97746 filed by the present applicant is preferably used.

An example of the structure of the automatic intake valve 46 is also referred to in the above-mentioned Kyodo invention.
A presser plate IQ2 fixed by a lid 101 screwed onto the upper part of the presser plate IQ2 has a tapered inner surface, and a plurality of intake holes 103 are formed therein.

Diaphragm valve 1IQ4 with intake hole 185 in the center
is in close contact with the tapered inner surface of the presser plate IQ2, and is fixed together with the presser plate to the upper part of the valve weight 100 by screwing the lid.

The automatic intake valve 46 configured as described above is installed at the highest part of the hot water supply circuit piping, that is, at the connection port 1111 provided upward in the on-off valve device assembly as shown in FIG. When the water and gas valves are closed to stop using the moat device, the drain valve 33
, 33 are automatically connected as described above, and the remaining water in the piping flows out from the drain valve due to its own weight, thereby creating a negative pressure in the piping, which causes the diaphragm valve IQ4 of the variable intake valve 46 to flow out. is spaced L' from the tapered inner surface of the lid 101, the respective intake holes 103 and IQ5, and the diamond-shaped intake hole I
Air is taken in through Q6, and all remaining water in the L pipe d flows out from the drain valve 33.

The outlet circuit in the illustrated example device of the present invention includes a hot water supply flow path 34 leading to the shower head 39, a thermal injury supply V supply flow path 35 leading to the hot water tap 481, and a steam supply flow leading to the hot water outlet 37 with a silencer of the bathtub. passage 36, and each passage has an on-off valve device 34a? Heat exchanger 21 via 35a and 36a
connected to the hot water outlet side.

The overflow hot water V supply channel 34 leading to the shower head 39 further includes a hot water storage chamber 42 with a volume of 4.
, and preferably, the water pressure regulating valve 23 is branched from the primary water pressure chamber 25a after the water passage and merges with the salt water supply channel 34 in the hot water storage chamber 2, and an on-off valve device 45 is provided in the middle thereof.
and a bypass flow path 43 provided with a temperature control valve device 44.

To explain the hot water stable discharge device in more detail with reference to FIG. 6, the small volume hot water storage chamber 42 has an inlet 107 suitable for the on-off valve device 34a and an outlet 108 suitable for the shower head 39.
have.

The spout nozzle 11 of the bypass waterway 43 that merges with the hot water supply channel 34 inside the hot water storage chamber 42 projects into the wound storage chamber, and the spout 110aZ is connected to the outlet 1 of the wound storage chamber.
It will be installed facing 2008.

The spout nozzle 110 has a small hole 110b in the wall at a position protruding into the hot water storage chamber, so that a small amount of water from the bypass channel is spouted into the room from the small hole and mixed with the hot water in the room in advance. Z The operation of the above-mentioned hot water stable discharge device is as follows. Rotate the operating knob 2 of the operating device 2 to the right 120o, that is, to the "burn" position, and open the bathtub via the on-off valve device 326a controlled by the arcuate protrusion P2 of the circular cam plate 2a''. After boiling by discharging steam, when the operating arm 2a' is rotated from the "stop" position to the leftward direction 120o, that is, to the "shower" position in order to wash the body, the opening/closing valve device 34a is turned into a circular state. The valve is fully opened by the arcuate protrusion P of the cam plate 2a'', and hot water is supplied to the outflow 34 leading to the shower head.

Since the hot water valve 28 is opened by the rotation of the armature 2a,
In the heat exchanger 21, high temperature hot water is generated. However, at the beginning of switching to the shower, residual steam in the piping flows into the shower flow path 34.
However, in the device of the present invention, the residual steam once enters the moat storage chamber 42 and becomes hot water due to rapid pressure reduction, and the "shower" of the operating knob 2a'
Opening/closing valve device 45 of bypass waterway 43 by rotating to the position
Also, the arcuate protrusion P4' of the circular cam plate 2a'' is activated slightly earlier than the opening/closing valve device 34a, and the water mixed with the water ejected from the small hole 110b of the ejection nozzle 110 enters the wound storage chamber 42. The temperature of the hot water is further lowered, and the hot water is mixed with the water spouted from the spout 110a of the spout nozzle, and flows out from the spout 108 to the shower head 39 as a suitable temperature hot water.Shower head 39
The temperature of the overflowing hot water discharged from the hot water can be adjusted to a desired temperature by rotating the operating knob 2b' to an appropriate angle to adjust the degree of opening of the temperature control valve device 44 with the protrusion P5 of the circular cam plate 2b''. be able to.

In the illustrated example, the above-mentioned device for stably discharging hot water has been described as being applied to the bamboo flow path 34 leading to the shower head 39.
When hot water is used, the purpose is to prevent the risk of burns caused by residual steam in the piping being discharged at the beginning. 35 would be easily thought of by a person skilled in the art. A person skilled in the art will also be able to easily determine the connections between the flow path and the flow path to the spigot 40.

An on-off valve device 34a provided in the injury circuit of the device of the present invention,
35a, 36a, 45, and the temperature control valve device 44 are separated from the main body of the hot water heater as described above, and are concentrated around the other ends of the operating handle shafts 2a, 2b that protrude outside across the bathroom wall. The opening and closing operations are performed by the circular cam plates 2a'' and 2b'' according to the time series shown in FIG. In addition, each opening/closing valve device is connected to the arcuate protrusions P2, P3 of the circular cam plate 2a'' when the operating knob 2a' is in the "stop" position.
, P4 (the heights of P3 and P4 are lower than P3' and P4', respectively, and slightly protrude from the plane of the cam plate). This contributes to the complete drainage of residual water.
As detailed above, the present invention has the ability to instantly generate steam as well as normal high-temperature water by operating the operating device installed indoors, and can reheat the bath. It is equipped with safety mechanisms such as a stable steam generation circuit and a stable hot water discharge device to prevent dangers associated with this steam generation function, and also prevents damage to equipment due to freezing of residual water and in case of water outage, etc. In addition to being equipped with an automatic water draining device that also serves to prevent the backflow of sewage, the unique structure described above allows all of the numerous operation parts to be easily and securely operated indoors, and the installation is compact. The present invention provides an outer layer type instantaneous gas supply device that is equipped with various new mechanisms, such as a remote control device that can be easily installed within the layer area, and is capable of generating steam with extremely high safety.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram of a moat supply device according to a specific example of the present invention, FIGS. 2 and 3 are front views of a cam plate used in the remote control device of the device of the present invention, and FIG. 4 is a schematic diagram of the on-off valve device. A side view of the assembly, FIG. 5 is a sectional view showing an example of an automatic intake valve used in the device of the present invention, FIG. 6 is a schematic diagram of the stable hot water discharge device, and FIG. 7 is a diagram showing each on-off valve of the device of the present invention. FIG. 3 is a diagram showing the opening and closing order of the device. 1...First operating device, 2...Second operating device, 2a, 2b...Cam plate, 6...Pilot gas burner, 7... Thermal turtle pair, 8...Solenoid valve, 9...Pilot gas valve, 12...
...Spark plug, 13...Thermal fuse, 14
......Ignition indicator, 15, 16...Main gas burner, 1
7...Auxiliary gas valve, 18...Main gas valve, 1
9... Auxiliary gas valve, 20... Main water pipe, 21...
Heat exchanger, 22... Water valve, 23... Water pressure regulating valve, 24... Diaphragm, 25...
Diaphragm chamber, 27...Hydraulic pressure responsive gas valve device, 28...Water supply valve, 29...Needle valve, 30...Ryufuji for steam generation, 31・・・・・・
・Diaphragm valve, 32...Steam stable generation circuit, 3
3... Drain valve, 34, 35... Warm moat supply V
Supply channel, 36... Steam supply confluence channel, 34a, 3
4a, 36a, 45... Open/close valve bag gutter, 37...
...Hot water outlet with silencer, 39...Shower head, 40...Hot water tap, 41...Overpressure prevention valve, 42...Moat storage room , 43... Bypass flow path 44... Temperature control valve, 46...
Movement intake valve, 100... Valve crab, 101... Lid body, 102... Pressing plate, 103S, 105, 106...
...Intake hole, 104...Diaphragm valve, 107
...Inflow port, 108...Outflow port, 109...
... Baffle plate, 110 ... Spray nozzle, 111
..... Joint connection port for mechanical intake valves. Figure 2 Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1. A control device centrally located indoors for operating the flashing light, adjusting the hot water temperature, and switching the hot water output circuit of the water heater installed outdoors, and a diaphragm that responds to changes in water pressure to control the main gas burner. A main water pipe leading from the primary water pressure chamber of the water pressure responsive gas valve device that controls gas supply to the heat exchanger, up to the confluence point between the main water pipe and the passageway leading to the secondary water pressure chamber of the water pressure responsive gas valve device. a hot water valve is provided in the main water pipe, and a steam generation passage is provided with a needle valve adjusted to an optimum diameter for steam generation in parallel to the main water pipe between the primary water pressure chamber and the confluence point, and A water circuit comprising a stable steam generation circuit equipped with a diaphragm valve operated by pressure, an automatic intake valve provided at the highest point of the hot water supply circuit piping after the heat exchanger, and opening/closing operation of the gas tank by the operating device. an automatic water draining device consisting of a water draining valve that automatically opens and closes in conjunction with the water circuit, and an on-off valve device that is connected to the outlet side of the heat exchanger of the water circuit via an on-off valve device that is opened and closed by the operating device, respectively. The hot water supply flow path branches from a small-volume hot water storage chamber and a main water pipe provided in the middle thereof, and merges with the hot water storage chamber and the hot water supply flow path. , a hot water tap circuit equipped with a stable hot water discharge device consisting of a bypass waterway equipped with a temperature control valve device and an opening/closing valve device operated by the operating device in the middle thereof, and an external type capable of generating steam. Instant gas water heater.