JPH04120565U - Hot water circulation device for bath with burner heating means - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent hot water from being injected from the discharge side circulation pipe by using an oil burner heating means with a large heat capacity and by maintaining a high hot water clarification effect of the filter member. [Structure] A control means for controlling the operation of the oil burner heating means includes a bathtub water temperature sensor and a discharge temperature sensor. The discharge temperature sensor temporarily stops the operation of the burner heating means when hot water is injected from the discharge side circulation pipe. [Effect] The environment of the filtration member is set to a state where microorganisms clarify hot water, and hot water is prevented from being sprayed from the discharge side circulation pipe. Moreover, even when the filter member becomes clogged over time, hot water is prevented from being sprayed from the discharge side circulation pipe.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea circulates hot water in the bathtub and heats it using a burner. Hot water circulation for baths that heats the water to a comfortable temperature and keeps the hot water clear with a filtration member. Regarding ring devices.

0002

[Conventional technology]

A bath water circulation system that circulates hot water in the bathtub continuously 24 hours a day, allowing you to take a bath anytime. The location is being developed. The device measures the temperature of hot water, heats it to a certain temperature, and , removes dirt, bacteria, etc. contained in hot water and keeps it clear.

0003 A circulating hot water system for baths that can be used without replacing water every day saves water and water. Both energy characteristics can be satisfied at the same time. Moreover, whenever you want, 24 hours a day It is extremely convenient to take a bath.

0004 This type of bath uses a heater to maintain the set temperature, and a filtration member to supply hot water for 24 hours. Filter continuously for hours to keep clear. To achieve this, hot water circulation equipment The hot water circulation path is provided with a circulation pump, a heater, and a filtration member. Hee The water heater is controlled by a temperature sensor and heats the water to a constant temperature. The heater has Usually, one of about 1KW is used. A 1KW heater produces 860Kc per hour. Generates heat from al. This amount of heat is equivalent to heating approximately 200 liters of water to room temperature over 7 hours. This corresponds to the amount that can be heated from to bathing temperature. For convenient use, turn off the heater. It is required to further increase the amount of raw heat. That is, the water replenished in the bathtub can be used for a short period of time. This is to heat the room to a comfortable temperature. However, the capacity of the heater is limited due to power consumption. subject to restrictions. Special wiring is required when using a large capacity heater of 1KW or more. This means that electrical work during installation will be extremely time-consuming. For this reason, the heat When using equipment that uses water, the temperature of the bathtub decreases when a large amount of water is refilled, causing the bathtub water to become cold. This has the disadvantage that it takes a long time to heat up, making it impossible to take a comfortable bath for some time. . In addition, this type of device heats the hot water to the set value continuously for 24 hours, so It is important to reduce running costs.

[0005] A device that uses a burner-type bathtub water heating means instead of an electric heater was developed by Jitsukasho. It is described in Japanese Patent No. 57-58840. This device uses a burner heating means to heat the Since the water is heated, running costs can be reduced. It's heated by electricity This is because kerosene is cheap. In addition, the burner heating means generates an extremely large amount of heat. It has the advantage of significantly shortening the heating time of hot water.

[0006]

[Problem that the idea aims to solve]

The device described in this publication connects a filtration member and a burner heating means in parallel. ing. For this reason, the circulation pipe connected to the bathtub has a double structure. circular pie The central tube of the bathtub is connected to a filtration means, and the outer tube is connected to a burner heating means for the bathtub. It is tied. This device has the disadvantage that hot water is injected from the discharge side of the burner heating means. There is. For this reason, it is not possible to comfortably take a bath with the burner lit. Also , the circulation pipe connected to the bathtub needed to have a special structure, making installation work difficult. It has the disadvantage of being time consuming.

[0007] In order to solve this drawback, the present inventor created a hot water circulation device for baths as shown in Figure 2. developed. This device includes a circulation pump 1, a filter member 2, and an oil burner heating means. 3 were connected in series. The circulation pump 1 forces hot water to the burner heating means 3. It has a structure that allows it to flow. With this structure, the inventor of the present invention was able to lower the amount of hot water on the discharge side. I thought I could. However, as a result of actually prototyping and experimenting with this device, we found that it did not meet our expectations. On the other hand, hot water was sprayed from the discharge side.

[0008] The filter member 2 is connected in series with the burner heating means 3, and this This is because it slows down the flow of water. Increase the flow rate of the filtration member to remove hot water from the discharge side. can be kept at a low temperature. However, the filtration member has a preferred flow rate for filtering hot water. If the speed is too high, the effect of clarifying hot water will be reduced.

[0009] In particular, this type of device not only physically filters hot water, but also filters microorganisms. It works to clarify hot water. The filtration member is designed to provide a comfortable environment for the growth of microorganisms. It harbors aerobic microorganisms. Microorganisms are caused by ammonia and tane contained in hot water. It feeds on protein and breaks it down. Sweat and dirt in warm water are effectively removed by microorganisms. The hot water is kept clear. The device that filters hot water in this state is If the flow rate is too high, the clarification effect of the filtration member will be reduced.

0010 For this reason, the present inventor further branched the discharge side of the circulation pump into two and connected it to the filtration member. We prototyped a device with a parallel bypass path. This structure controls the flow rate of the filtration member. The flow rate can be adjusted to an optimal speed, allowing hot water to flow through the bypass path at high speed. deer However, this structure caused even more serious problems. It was made to use Therefore, the foreign matter deposited on the filtration member increases the hot water passage resistance, causing the temperature of the filtration member to decrease. The water flow rate was significantly reduced. Furthermore, this structure also makes it possible to It was not possible to lower the boiling water temperature that much.

[0011] The temperature of hot water on the discharge side depends on the flow rate, suction temperature, and amount of heat generated by the burner heating means. It is determined. Therefore, if the flow rate cannot be increased, the amount of heat generated by the burner heating means The boiling water temperature can be lowered by making it smaller. However, used for this kind of application Gun-type burner heating means should have a calorific value of 15,000 Kcal or less. is extremely difficult. Gun-type burner heating means reduces the amount of heat generated Therefore, it is necessary to use extremely thin nozzles. How to use a thin nozzle As long as fuel is injected from here, the flow rate will be 1 liter per hour (1 minute). It is extremely difficult to reduce the amount to 17cc or less. Therefore, the amount of heat generated is incomparably larger than an electric heater.

0012 The amount of heat generated by the burner heating means is large considering that hot water is injected. If not, this is a great feature. It can comfortably heat cold bath water in an extremely short time. This is because it can be heated up to a certain degree. Therefore, you can replenish the water and bring it to a comfortable temperature immediately. It has the following characteristics.

[0013] From this, it is possible to eliminate the problem of hot water blowing out by using a burner heating means. It is ideal for reducing running costs and for replenishing water and bathing comfortably. It is possible to realize a device that

[0014] This idea was developed with the purpose of realizing this. The important purpose is to use a large-capacity burner heating means 3 and also to improve the quality of the filtration member. It maintains the hot water clarification effect and lowers the temperature of the hot water sprayed from the discharge side, making it comfortable. To provide a hot water circulation device for a bath in which people can take a bath.

[0015]

[Means to solve the problem]

The hot water circulation device for a bath having a burner heating means of this invention achieves the above-mentioned purpose. In order to achieve this, the following configuration is provided. (a) The hot water circulation device has a hot water circulation path connected to the bathtub via the circulation pipe 4. have (b) The hot water circulation path includes a circulation pump 1, a filter member 2, and a burner heating means 3. and is provided. (c) The circulation pump 1 sucks hot water in the bathtub and forcibly circulates it through the hot water circulation path. The operation of the heater heating means 3 is controlled by the control means 8 to heat the hot water to a predetermined temperature, The filter member 2 is configured to clarify hot water and return it to the bathtub. (d) The control means 8 detects the hot water temperature on the suction side of the burner heating means 3 A bathtub water temperature sensor 5 and a discharge sensor for detecting the hot water temperature on the discharge side of the burner heating means 3. It is equipped with an output temperature sensor 6. (e) The control means 8 is equipped with both the bathtub water temperature sensor 5 and the discharge temperature sensor 6. The burner heating means 3 is operated only when the temperature is below a constant temperature, and the bath water temperature sensor 5 or discharge temperature sensor 6 stops operating when the temperature exceeds the set temperature. (f) The set temperature of the discharge temperature sensor 6 is different from the set temperature of the bathtub water temperature sensor 5. It is also set high.

[0016]

【Example】

Hereinafter, embodiments of this invention will be described based on the drawings. However, the examples shown below This is an example of a hot water circulation device for baths that embodies the technical idea of this invention. Therefore, the device of this invention has the material, shape, structure, and arrangement of the component parts as shown below. It is not specific. The device of this invention can be used in various ways within the scope of utility model registration claims. changes can be made.

[0017] Furthermore, this specification includes examples to make it easier to understand the scope of the claims for utility model registration. The numbers corresponding to the indicated parts are listed in the "Claims of Utility Model Registration" and "Problem It is added to the members shown in "Means for solving the problem" column. However, the application for utility model registration is The members shown in the desired range are by no means limited to the members of the embodiments.

[0018] The hot water circulation device for a bath having the burner heating means 3 shown in FIG. A circulation pump 1, a filter member 2, and a stone An oil burner heating means 3 is provided.

[0019] The circulation pump 1 sucks hot water in the bathtub and forcibly circulates it through the hot water circulation path. follow The suction side of the circulation pump 1 is connected to the inlet of the bathtub, and the discharge side is connected to the filtration member 2. There is. The circulation pump 1 is operated continuously for 24 hours.

[0020] The filter member 2 filters the hot water in the bathtub clearly. The filter member 2 clears hot water. It has a built-in material. Wood is made by crushing natural stone into granules or natural stone. Stone that has been crushed and sintered into a porous structure can be used. This raw material is susceptible to the growth of microorganisms. This creates a comfortable environment for aerobic microorganisms to inhabit. Microorganisms are It feeds on ammonia and protein and breaks them down. Therefore, sweat and dirt in warm water It is effectively removed by microorganisms and the hot water is kept clear. Foreign matter is deposited on the filter member 2 When the hot water circulation rate decreases, the clarification effect decreases.

[0021] For this reason, the device shown in FIG. 1 is equipped with a primary filter 9 on the suction side of the circulation pump 1. It is connected. The primary filter 9 filters the hot water sucked into the circulation pump 1. , remove foreign substances such as hair and organic soft bodies. The primary filter 9 physically cools the hot water. Materials for filtration, such as open-cell synthetic resin foam, non-woven fabric, filter paper, wire mesh, etc. It has a built-in material.

[0022] The oil burner heating means 3 is connected between the discharge side of the filter member 2 and the bathtub. There is. A gun type burner heating means can be used as the oil burner heating means 3. . The burner heating means 3 is operated when the temperature of the hot water drops below a certain temperature. oil tank The operation of the inner heating means 3 is controlled by a control means 8. The control means 8 controls the temperature of the bathtub. A bathtub water temperature sensor 5 that detects water temperature and hot water on the discharge side of the burner heating means 3 It includes a discharge temperature sensor 6 that detects temperature and a controller 7.

[0023] The bathtub water temperature sensor 5 is disposed near the inlet. bathtub water temperature sensor -5 is for measuring the temperature of hot water drawn into the burner heating means 3, It is possible to arrange it anywhere on the suction side of the burner heating means 3. The discharge temperature sensor 6 is built into the circulation pipe on the discharge side connected to the bathtub. Ru. The burner heating means 3 detects the temperature of hot water discharged from the burner heating means 3. Therefore, which part of the discharge side of the burner heating means 3 should it be connected to? is also possible.

[0024] The controller 7 receives input from the bathtub water temperature sensor 5 and the discharge temperature sensor 6. The operation of the burner heating means 3 is stopped at the signal. Controller 7 is the bath water temperature When both the temperature sensor 5 and the discharge temperature sensor 6 are below the set temperature, the burner heats up. Operate means 3. That is, the hot water in the bathtub is at the set temperature of the bathtub water temperature sensor 5. Moreover, the hot water temperature on the discharge side is lower than the set temperature of the discharge temperature sensor 6. It is only operated when the temperature is low.

[0025] The set temperature of the bathtub water temperature sensor 5 can be adjusted by the bather to his or her preference. It has become. Therefore, the controller 7 controls the set temperature of the bathtub water temperature sensor 5. It is equipped with a dial and a setting switch (not shown) for adjusting the settings. bathtub water The set temperature of the temperature sensor 5 is adjusted to a range of 39°C to 45°C, for example.

[0026] The set temperature of the discharge temperature sensor 6 is higher than the set temperature of the bathtub water temperature sensor 5. Adjusted accordingly. This set temperature is usually adjusted to a range of 48°C to 55°C. child If the set temperature is high, one operation time of the burner heating means 3 becomes longer, The temperature of the hot water injected from the circulation pipe increases. On the other hand, the discharge temperature sensor 6 Lowering the set temperature lowers the temperature of the hot water injected from the discharge side circulation pipe, The time required for one operation of the burner heating means 3 is shortened. One time of burner heating means 3 If the operating time is too short, the combustion state of the burner heating means 3 will deteriorate and the thermal efficiency will decrease. do. On the other hand, if it is too long, the temperature of the hot water injected from the discharge side circulation pipe will be too high. It gets hot. Therefore, the set temperature of the discharge temperature sensor 6 is the same as that of the burner heating means 3. It is adjusted to the optimum value, taking into account the operating time of the pump and the hot water temperature of the discharge side circulation pipe. .

[0027] Furthermore, the bath hot water circulation device shown in Fig. , hot water is automatically supplied. The device shown in this figure is a circulation pump. A water supply valve 10 is connected to the suction side of the pump 1. The water supply valve 10 is connected to a water supply etc. There is. Furthermore, the water supply valve 10 is a solenoid valve that is opened and closed by a water level sensor 11 in the bathtub. Ru. The water level sensor 11 also controls the operation of the burner heating means 3.

[0028] This device detects that when the hot water level in the bathtub decreases, this is detected by the water level sensor 11. When detected, the water supply valve 10 is opened and the burner heating means 3 is ignited. circulation pump The water supplied to the suction side of the bathtub 1 is heated by the burner heating means 3 and replenished into the bathtub. It will be done. At this time, the burner heating means 3 is continuously operated. It's a burner The temperature of the tap water supplied to the heating means 3 is low, and it is injected from the discharge side circulation pipe. This is because the hot water temperature is low. When the hot water level in the bathtub reaches the set value, the water level sensor 11 closes the water supply valve 10 At the same time, the operation of the burner heating means 3 is stopped.

[0029] The bath hot water circulation device having the burner heating means 3 shown in FIG. It is operated to heat the hot water in the bathtub to a constant temperature.

[0030] When the hot water in the bathtub falls below the set temperature, this signal is sent to the bathtub water temperature sensor 5. Detected, the controller 7 ignites the burner heating means 3. When the burner heating means 3 is ignited, hot water is injected from the discharge side circulation pipe. temperature increases. The temperature of the hot water injected from the discharge side circulation pipe is the set temperature of the discharge temperature sensor 6. When the temperature exceeds the temperature, the controller 7 stops the operation of the burner heating means 3. When the operation of the burner heating means 3 is stopped, the hot water temperature of the discharge side circulation pipe is The temperature gradually decreases to below the set temperature of the discharge temperature sensor 6. In this state, if the hot water in the bathtub is below the set temperature of the bathtub water temperature sensor 5, The burner heating means 3 are lit again. When the temperature of the discharge side circulation pipe exceeds the set temperature of the discharge temperature sensor 6, the valve The inner heating means 3 stops operating again. After that, ~ operation is repeated and the hot water in the bathtub reaches the bathtub water temperature sensor. The temperature of the hot water in the bathtub is set at the burner heating means 3. Stop operation until the temperature drops below.

[0031]

[Effect of the idea]

This circulating hot water device for baths uses a large-capacity burner heating means, and In addition, the flow rate of the filtration member is set to a range suitable for hot water clarification, eliminating hot water injection. can. It controls the operation of the burner heating means, the bath water temperature sensor and the discharge temperature sensor. The discharge temperature sensor detects when the temperature on the discharge side exceeds the set temperature. This is because the operation of the burner heating means is then stopped. In other words, the wind of this idea A circulation hot water device for bathtubs is designed to keep the temperature of the bathtub at or below the set temperature. When heating, burner heating is determined by the discharge temperature measured by the discharge temperature sensor. The device is heated by repeatedly starting and stopping the device several times. For example, conventional equipment However, if the burner heating means is operated once to heat the hot water to the set temperature, then this The device, devised by , limits the maximum temperature on the discharge side and repeatedly starts and stops. to warm the water. Therefore, the device of this invention can be used with any large burner. Even if a heating means is used, if the temperature on the discharge side exceeds the set value, the burner heating means will be turned off. Since the operation is stopped, hot water is not sprayed. A battery that has temporarily stopped operating The heater heating means constantly circulates hot water, so latent heat can be effectively transferred to the hot water. The generated heat can be used without wasting it.

[0032] By the way, as a result of the inventor's actual experiments, a 200 liter bathtub was heated to 150 liters. It is heated by a burner heating means of 00Kcal/hour, and the discharge temperature sensor detects the temperature of the burner. For devices that set the temperature at which the heating means stops operating at 50°C, the bathtub water temperature sensor After the burner heating means starts operating at the temperature detected by the sensor, it starts and stops three times per minute. The bathtub water temperature sensor detects the burner temperature by repeatedly stopping and stopping the hot water temperature by about 0.5℃. - The operation of the heating means was stopped.

[0033] In addition, if the water in the bathtub is reduced to about half and tap water is supplied and the water temperature is 30℃, the maximum For the first few minutes, the discharge temperature is below 50°C and the burner heating means is operated continuously. After that, the burner heating means repeats operation and stop, and the hot water reaches the bath water temperature setting. When the set temperature of the burner was reached, the operation of the burner heating means was stopped.

[0034] In this way, the circulating hot water device for baths of this invention generates less heat than a heater. Burner heating means with extremely large capacity and low running cost per unit of heat can be used to heat water comfortably and quickly, and is the same as traditional equipment. It can be easily installed, and it also simplifies hot water supply equipment, making it an ideal product. Achieve longevity.

[Brief explanation of drawings]

FIG. 1 is a schematic block diagram of a hot water circulation device for a bath having a burner heating means, showing an embodiment of this invention.

[Figure 2] Block diagram of a conventional bath hot water circulation device

[Explanation of symbols]

1... Circulation pump 2... Filtration member 3... Burner heating means 4... Circulation pipe 5... Bathtub water temperature sensor 6... Discharge temperature sensor 7... Controller 8... Control means 9... Primary filter 10... Water supply valve 11... Water level sensor

Claims (1)

[Scope of utility model registration request] 1. A circulating hot water device for a bath having a burner heating means having the following configurations (a) to (f). (a) The hot water circulation device has a hot water circulation path connected to the bathtub via a circulation pipe (4). (b) The hot water circulation path includes a circulation pump (1) and a filtration member.
(2) and burner heating means (3). (c) The circulation pump (1) sucks hot water in the bathtub and forcibly circulates it through the hot water circulation path, and the operation of the burner heating means (3) is controlled by the control means (8) to heat the hot water to a predetermined temperature. Warm,
The filter member (2) is configured to clarify the hot water and return it to the bathtub. (d) The control means (8) includes a bathtub water temperature sensor (5) that detects the hot water temperature on the suction side of the burner heating means (3);
It is equipped with a discharge temperature sensor (6) that detects the hot water temperature on the discharge side of the burner heating means (3). (e) The control means (8) operates the burner heating means (3) only when both the bathtub water temperature sensor (5) and the discharge temperature sensor (6) are below the set temperature, and controls the bathtub water temperature sensor. (5) and discharge temperature sensor (6) will stop operating when the temperature exceeds the set temperature. (f) The set temperature of the discharge temperature sensor (6) is set higher than the set temperature of the bathtub water temperature sensor (5).