CN201740205U - Pipeline back heating device of heater and heater - Google Patents

Abstract

The utility model relates to a pipeline back heating device of a heater and the heater, belonging to the field of heaters. The pipeline back heating device of the heater comprises a water inlet of the pipeline back heating device, a control unit (4) and a heating unit (2) which are connected with the water outlet pipe of the heater, and the heating unit (2) is connected with the control unit (4). The utility model also comprises a water temperature detection unit which is connected with the control unit (4), and is used for detecting the water temperature of the tail end of the hot water outlet pipe of the heater. The utility model has the beneficial effects that the pipeline back heating device can quickly output hot water with set temperature, greatly shortens the time interval from the start of the heater to the hot water outgoing from a nozzle, fully utilizes the water resource, shortens the time for waiting for the hot water, and is beneficial to the health of users. Particularly, for gas heaters, the problem of non-uniform hot water temperature can be solved.

Description

Water heater pipeline after heating device and water heater

technical field

The utility model relates to a water heater. the

Background technique

Water heaters in the prior art, especially domestic water heaters, require that the main unit of the water heater cannot be installed in the washroom due to safety considerations. Therefore, most of the main unit and the nozzle are connected by relatively long water pipes. At the same time, it takes a period of time for the water heater itself to heat water. . The resulting problem is that there is quite a long period of time between turning on the water heater and the hot water coming out of the nozzle, or in other words, after turning on the water heater, the nozzle is out of cold water for a long time, which causes waste of water resources on the one hand, and on the other hand, uses Those who suffer from colds are also prone to colds. the

In the prior art, there is a technology for supplementary heating of solar water heaters, which solves the problem of insufficient water storage temperature in solar water heaters, but cannot solve the problem of gas water heaters or electric water heaters. Out of cold water, and changes in air pressure or water pressure lead to hot and cold problems. the

Utility model content

The technical problem to be solved by the utility model is to provide a water heater pipeline post-heating device and a water heater with the heating device, which can overcome the defects of the prior art, make full use of water resources, and solve the problem of existing gas water heaters. Changes in air pressure cause hot and cold problems. the

The technical solution adopted by the utility model to solve the above-mentioned technical problem is that the post-heating device of the water heater pipeline is characterized in that it includes a water inlet of the post-heating device for connecting with the outlet pipe of the water heater, a control unit and a heating unit, and the heating unit It is connected with the control unit, and also includes a water temperature detection unit connected with the control unit, which is used to detect the water temperature at the water inlet position of the heating device after the hot water outlet pipe end of the water heater. the

The water temperature detection unit includes a water temperature detection unit at the water inlet of the post-pipeline heating device and a water temperature detection unit at the water outlet of the post-pipeline heating device. the

The water temperature detection unit includes a flow detection module or a water pressure detection module. the

The heating unit is a water storage heating unit. The water path after the water inlet of the post-pipeline heating device is divided into two paths, one path is connected to the final water outlet through the water mixing valve, and the other path is connected to the heating unit. There is a water temperature detection unit, the water outlet pipe of the heating unit is connected to the water mixing valve through the electric control valve, and the control unit is connected with the electric control valve. the

The utility model also provides a water heater, including a main body of the water heater, which is characterized in that a post-pipeline heating device is arranged at the end of the hot water outlet pipe of the main body of the water heater, and the post-pipeline heating device includes:

The water temperature detection unit is used to detect the water temperature at the end of the hot water outlet pipe of the water heater host and at the water inlet of the heating device after the pipeline;

The control unit is used to control the heating unit to work according to a predetermined program. The predetermined program is: when the water temperature at the water inlet of the heating device behind the pipeline is lower than the preset temperature, the water flow is heated; when the water inlet of the heating device behind the pipeline When the water temperature at the place is lower than the preset temperature, stop heating;

heating unit;

The control unit is respectively connected with the water temperature detection unit and the heating unit. the

The heating unit is a water storage heating unit, including a water storage tank and an electric heater. The water storage tank is connected to the water inlet through the auxiliary water channel, and the water flow in the main water channel is heated by supplementing high-temperature water flow. the

The main waterway mentioned in this article refers to the waterway from the hot water outlet pipe of the water heater to the final outlet, and the auxiliary waterway refers to the waterway for replenishing and releasing the stored water by the water storage heating device. the

The beneficial effect of the utility model is that hot water with a set temperature can be output quickly, which greatly shortens the time interval between the opening of the water heater and the hot water coming out of the nozzle, makes full use of water resources, and shortens the waiting time for hot water , which is beneficial to the health of users. Especially, for gas water heaters, the frequent hot and cold problems can also be solved. the

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described. the

Description of drawings

Fig. 1 is a structural schematic diagram of the first embodiment of the water heater pipeline post-heating device of the present invention. the

Fig. 2 is a structural schematic diagram of the second embodiment of the water heater pipeline post-heating device of the present invention. the

Fig. 3 is a structural schematic diagram of a third embodiment of the water heater pipeline post-heating device of the present invention. the

Fig. 4 is a structural schematic diagram of a fourth embodiment of the water heater pipeline post-heating device of the present invention. the

In each figure, thin lines indicate electric circuits, thick black lines indicate waterways, and arrows indicate the direction of water flow. the

Detailed ways

The idea of the utility model is to carry out supplementary heating after the water outlet of the main body of the water heater. Supplementary heating is performed when the water heater main unit starts to discharge water, and supplementary heating can be stopped when the hot water provided by the water heater main unit reaches a predetermined temperature. The heating measure of the utility model can adopt electric heating, also can adopt the mode heating of mixing hot water.

One purpose of this utility model is to heat the water stored between the main body of the water heater and the nozzle, so the "end" referred to in this article refers to the rear end of the hot water outlet pipe of the water heater, and the water inlet of the heating device behind the pipeline is Set here; "final water outlet" refers to the final water outlet of the main waterway after the heating device after the pipeline. "End" and "final water outlet" do not have to be strictly understood as being very close to the nozzle or the nozzle itself. Obviously, even if it is understood as a distance from the nozzle position, such as 10-20cm, it will not affect the use. the

For the first embodiment, refer to FIG. 1 . The arrows in the figure indicate the direction of water flow. The post-heating device of the water heater pipeline of the utility model includes a control unit 4 and a heating unit 2, and the control unit 4 and the heating unit 2 are connected. The heating unit 2 is an electric heater, and the control unit 4 is a switch of the heating unit 2 . There is also a water temperature detection unit 1 connected with the control unit 4 . The water temperature detection unit 1 is arranged at the water inlet of the post-pipeline heating device. Since the post-pipeline heating device is arranged behind the water outlet of the main body of the water heater, the water inlet of the post-pipeline heating device is also behind the water outlet of the main body of the water heater. The water temperature detection unit 1 detects the temperature of the water flow provided by the water heater host, and if the temperature is too low, the control unit 4 activates the heating unit 2; when the water flow provided by the water heater host reaches a sufficiently high temperature, the heating unit 2 of the heating device behind the pipeline The heating is stopped, and the water pipe directly outputs the hot water provided by the main unit of the water heater. the

The heating unit is recommended to use electric heating. Since the electric heating technology is a mature technology, this article will not repeat its specific structure. the

The water temperature detection unit can use a bimetallic strip. When the utility model is in working condition, if the water temperature at the water inlet of the pipeline rear heating device is too low, turn on the switch of the electric heater to heat the water flow; if the water temperature at the water inlet of the pipeline rear heating device is high enough, then turn off Electric heater power switch. This embodiment can also solve the problem that the gas water heater is intermittently hot and cold due to changes in air pressure. the

For the second implementation mode, refer to FIG. 2 . A water temperature detection device 3 is also provided at the final water outlet. Its function is to adjust the power of the electric heater according to the water temperature at the water outlet of the heating device after the pipeline, and gradually reduce the temperature of the water flow provided by the water heater host as it gradually rises. The power of the electric heater makes the water temperature of the finally provided water flow substantially constant. the

The utility model can also increase the water flow or water pressure detection module, which is connected with the heating unit, and when the flow or water pressure is too low, the heating device after the pipeline is closed to avoid scalding or "dry burning" phenomenon. the

The third implementation mode: see Figure 3. The water path behind the water inlet of the post-pipeline heating device is divided into two paths, one path is connected to the final water outlet through the water mixing valve 6, and the other path is connected to the heating unit 2. The water temperature of the water inlet of the post-pipeline post-heating device is set The water outlet pipes of the detection unit 1 and the heating unit 2 are connected to the water mixing valve 6 through the electric control valve 5 , and the control unit 4 is connected to the electric control valve 5 . the

The utility model also provides a water heater with the aforementioned pipeline post-heating device, as shown in Fig. 4 . In the figure, A is the water heater, and B is the post-pipeline heating device. The post-pipeline heating device is arranged at the rear stage of the water outlet of the water heater host. the

More specifically, it is divided into two embodiments of water storage supplementary heating and direct heating supplementary heating, as follows:

Example of water storage supplementary heating: see Figure 3. the

1) The heating device 4 of the water storage pipeline is pre-filled with water, heated to a set temperature relatively higher than the use temperature and enters the heat preservation mode;

2) The electric control valve 5 is opened, and the heating device behind the heat storage pipeline immediately provides high-temperature hot water, which is mixed with the unheated cold water coming from the water heater pipeline through the water mixing valve 6, and hot water at the operating temperature is output in time. At the same time, due to the effect of water flow, the water heater is started to heat the cold water in the pipeline. the

3) When the hot water heated by the water heater reaches the heating device after the pipeline, and the water temperature reaches the operating temperature, the temperature control device immediately controls the electric control valve 5 to close the water outlet channel. the

Examples of direct heating supplementary heating:

1) After the direct heating pipeline, the heating device enters the power-on state, sets the outlet water temperature and stands by. the

3) When the hot water valve is opened, the heating device immediately provides high-temperature hot water after the direct heating pipeline activated by the water flow, and mixes with the unheated cold water coming from the water heater pipeline through the water mixing valve, and outputs hot water at the operating temperature in time . At the same time, due to the effect of water flow, the water heater is started to heat the cold water in the pipeline. the

4) When the hot water heated by the water heater reaches the after-pipeline heating device and the water temperature reaches the operating temperature, the direct-heating type after-pipeline heating device enters the water temperature control device to immediately control the heating circuit to cut off the power supply. Let the water from the water heater be directly supplied and used through the mixing valve. the

The specification of the utility model has explained the principle and working process of the utility model in detail, and those of ordinary skill can implement it without difficulty according to the specification, and the specific circuits or waterway structures are all prior art, and no further description will be given. . the

Claims (6)

1. water heater pipeline post heating device, it is characterized in that, comprise and be used for the pipeline post heating device water inlet, control module (4) and the heating unit (2) that are connected with water heater outlet, heating unit (2) is connected with control module (4), also comprise the water temperature detecting unit that is connected with control module (4), be used to detect the water temperature of the terminal pipeline post heating device water inlet position of hot water outlet pipe of water heater.

2. water heater pipeline post heating device as claimed in claim 1 is characterized in that, described water temperature detecting unit comprises pipeline post heating device water inlet water temperature detecting unit (1) and pipeline post heating device delivery port water temperature detecting unit (3).

3. water heater pipeline post heating device as claimed in claim 1 is characterized in that, described water temperature detecting unit comprises flow detection module or hydraulic pressure detection module.

4. water heater pipeline post heating device as claimed in claim 1, it is characterized in that, described heating unit is the storage-type heating unit, water route after the pipeline post heating device water inlet is divided into two-way, the water mixing valve (6) of leading up to connects the final outflow water mouth, and one the tunnel connects heating unit (2), and the pipeline post heating device water inlet is provided with water temperature detecting unit (1), the outlet pipe of heating unit (2) is by electric control valve (5) water receiving mixing valve (6), and control module (4) is connected with electric control valve (6).

5. water heater comprises the water heater main frame, it is characterized in that, establishing arm at water heater main frame hot water outlet pipe end has pipeline post heating device, and described pipeline post heating device comprises:

The water temperature detecting unit is used to detect the water temperature of water heater main frame hot water outlet pipe end, pipeline post heating device water inlet;

Control module (4) is used to control heating unit by preset program work, and described preset program is: when the water temperature of pipeline post heating device water inlet is lower than preset temperature, current are heated; When the water temperature of pipeline post heating device water inlet is lower than preset temperature, stop heating;

Heating unit (2);

Control module (4) is connected with water temperature detecting unit, heating unit (2) respectively.

6. water heater as claimed in claim 5, it is characterized in that described heating unit is the storage-type heating unit, comprise water storehouse and electric heater, water storehouse is connected with water inlet by secondary water route, and the mode by additional high temperature current heats the current in main water route.

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