CN210320605U - Commercial gas hot water system - Google Patents
Commercial gas hot water system Download PDFInfo
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- CN210320605U CN210320605U CN201921118513.7U CN201921118513U CN210320605U CN 210320605 U CN210320605 U CN 210320605U CN 201921118513 U CN201921118513 U CN 201921118513U CN 210320605 U CN210320605 U CN 210320605U
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Abstract
The utility model relates to a commercial gas hot water system belongs to water heater technical field. The system comprises at least one gas water heater with a low-temperature water outlet, a high-temperature water inlet and a burner, wherein the low-temperature water outlet is communicated with the high-temperature water inlet through a heat exchange pipeline surrounding the burner; the middle lower part of the water storage tank is provided with a low-temperature water outlet which leads to the water inlet of the gas water heater through the water pump, and the water outlet of the gas water heater leads to the high-temperature water inlet arranged in the middle of the water storage tank. The utility model discloses not only can guarantee to satisfy the demand that the big water yield reaches long-time water supply in the twinkling of an eye, effectively avoid overshoot (too high or cross low) phenomenon moreover, can guarantee that the temperature is unchangeable basically.
Description
Technical Field
The utility model relates to a gas hot water system, especially a commercial gas hot water system belong to water heater technical field.
Background
As far as the applicant is aware, when water needs to be supplied to a plurality of water using points during the use of the existing gas water heater, the following problems generally exist: a. the starting and stopping time of different water consumption points is inconsistent, so that the water temperature is often overshot (too high or too low); b. due to the limited power of a single gas water heater, it is difficult to meet the water demand of a group of user locations such as hotels, schools, hospitals.
Disclosure of Invention
The utility model aims at providing a commercial gas hot water system which can effectively solve the problem of water temperature overshoot, ensure the instant large water quantity and provide the required hot water for a long time, thereby bringing convenience to the cluster users.
In order to achieve the above purpose, the utility model discloses commercial gas hot water system's basic technical scheme is: the water heater comprises at least one heat source (such as a gas water heater) with a low-temperature water outlet, a high-temperature water inlet and a burner, wherein the low-temperature water outlet is communicated with the high-temperature water inlet through a heat exchange pipeline surrounding the burner; the middle lower part of the water storage tank is provided with a low-temperature water outlet which leads to a water inlet of a heat source through a water pump, and a water outlet of the gas water heater leads to a high-temperature water inlet arranged in the middle of the water storage tank.
In the working process, when the temperature sensor detects that the water temperature in the water storage tank is lower than the set temperature, the control circuit controls the water pump to start, and drives the water at the lower part of the water storage tank to enter the gas water heater from the low-temperature water outlet; the gas water heater is automatically ignited to burn and heat under the action of a water flow switch, so that water passing through the heat exchange pipeline is heated and then enters the middle part of the water storage tank through the high-temperature water inlet, the circulation is carried out, until the water temperature in the water storage tank reaches the set temperature, the water pump is stopped, and the gas water heater is stopped.
Because the utility model discloses rationally set up storage water tank energy storage buffering link, consequently not only effectively avoided current gas heater owing to directly through the overshoot (too high or low) phenomenon that temperature inertia leads to when burning heat exchange supplies water, even the storage water tank supplies water to a plurality of water points of opening and stopping irregularity moreover, also can guarantee that the temperature is unchangeable basically. And, the utility model discloses the rational utilization temperature layering mechanism, the low-temperature water export of setting in the storage water tank lower part can in time carry the gas heater heating because of becoming cold the sunken water gradually, and sets up the hot water that can in time supply the upper portion output at the high-temperature water entry at storage water tank middle part to with as far as possible little energy consumption, as far as possible hot water yield satisfy the supply demand of invariable temperature. In a word, the water supply device can meet the requirements of instant large water quantity and long-time water supply, effectively avoids the phenomenon of overshoot (overhigh or overlow) and can ensure that the water temperature is basically unchanged.
The utility model discloses further perfect is: the water storage tank is in a vertical cylinder shape, and two sides of the upper part of the water storage tank are respectively provided with a gas water heater.
The utility model discloses further perfect is: the low-temperature water outlet at the lower part of the water storage tank is respectively communicated with the water inlets of the two gas water heaters through branch pipelines after passing through the water pump, and the water outlets of the two gas water heaters are respectively communicated with the high-temperature water inlet of the water storage tank, so that a parallel heating system of the two gas water heaters is formed.
The utility model discloses still further perfect is: the temperature sensor is arranged between the high-temperature water inlet and the low-temperature water outlet.
Drawings
Fig. 1 is a schematic perspective view of a product according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of the recycle line system of the embodiment of FIG. 1.
Detailed Description
Example one
As shown in fig. 1 and 2, in the commercial gas water heating system of the present embodiment, gas water heaters 1 and 1' each having a low temperature water outlet, a high temperature water inlet, and an internal burner are installed at both sides of the upper portion of a vertical cylindrical water storage tank 2 provided with a temperature sensor T. The low temperature water outlet of the gas water heater 1, 1' is communicated with the high temperature water inlet through a water flow switch and a heat exchange pipeline surrounding the burner of the gas water heater, and the low temperature water outlet is similar to the known conventional gas water heater.
The bottom and the upper part of the water storage tank 2 are respectively provided with a cold water inlet 2-2 and a hot water outlet 2-1. The middle lower part of the water storage tank 2 is provided with a low-temperature water outlet 2-3, and the low-temperature water outlet 2-3 is respectively communicated with the water inlets of the two gas water heaters 1 and 1' through a branch pipeline after passing through the water pump 3; the water outlets of the two gas water heaters 1 and 1' are respectively led to a high-temperature water inlet 2-4 arranged in the middle of the water storage tank 2 after passing through a control valve; thereby forming a parallel heating system of two gas water heaters. Therefore, the device can output larger heating power, meet the requirement of large water consumption and inhibit water temperature fluctuation; and the energy consumption is convenient to be adjusted and controlled according to the condition.
The specific position of the temperature sensor T is arranged between the high-temperature water inlet 2-4 and the low-temperature water outlet 2-3 which are sensitive to water temperature change, so that the real-time regulation and control of the water temperature are facilitated.
In the use process, water from a water source W enters the water storage tank from the cold water inlet and is simultaneously conveyed to the water mixer at the water using point p through the circulating loop. When the temperature sensor detects that the temperature of water in the water storage tank is lower than a set temperature, the water pump is controlled to be started and the on-off valve is controlled to be opened through a control circuit in the controller 4 between the two gas water heaters, so that water in the lower part of the water storage tank is driven to enter the gas water heaters through the low-temperature water outlet. The control circuit adopts the prior art (CN 201120546940 'a multi-heat source bathing hot water control circuit' or CN2009201558880 'a control circuit of an instant electric water heater generating device' for reference). Of course, if necessary, a logic control circuit formed by connecting a plurality of electronic components in a certain wiring manner may be used as described in cn201510660312.x "gas water heater with preheating function"; or a Microcontroller (MCU) storing program instructions; or an integrated chip with a proprietary purpose such as a Field Programmable Gate Array (FPGA), etc.
After water enters the gas water heater from the low-temperature water outlet, the water is automatically ignited, burned and heated under the action of the original water flow switch, so that the water passing through the heat exchange pipeline is heated and then enters the middle part of the water storage tank from the high-temperature water inlet; the above circulation is carried out, until the water temperature in the water storage tank reaches the set temperature, the water pump is stopped, and the gas water heater is stopped.
Because the two gas water heaters are connected in parallel for heating, the effect that only one on-off valve is opened to supply heat by one gas water heater alone in summer and two on-off valves are opened to supply heat by two gas water heaters together in winter is easily realized, thereby meeting the water demand and saving energy relatively.
Experiments prove that hot water heated by the gas water heater is continuously output to a water mixer of a water using point p from a hot water outlet after passing through a water storage tank by the commercial gas water heating system of the embodiment and is converged with direct water supply of a water source W, the phenomenon of overshoot (too high or too low) is avoided under the buffer action of the water storage tank, even if a plurality of taps are used simultaneously, the commercial gas water heating system can meet the requirement, is very suitable for being applied to places such as hotels, schools, swimming pools, bathrooms and the like which need to continuously provide a large amount of hot water, can also be used as a circulating system for heating or heating other systems, and has the advantages of reasonable structure, compact layout and simple pipeline, and has the following remarkable advantages:
1) when the total water consumption is small, the gas water heater directly provides hot water stored in the water storage tank under the non-working state; when the total water consumption is large, the gas water heater heats and supplies water at the same time; therefore, the water supply device has good adaptability, and can ensure that the water temperature is basically unchanged even if water is supplied to a plurality of water consumption points with irregular starting and stopping.
2) The low-temperature water outlet arranged at the lower part of the water storage tank, the high-temperature water inlet arranged at the middle part of the water storage tank and the water temperature change sensitive temperature sensor are reasonably arranged, so that hot water output from the upper part can be timely supplemented and heated in real time, and the supply requirement of constant water temperature can be met with as little energy consumption as possible and as much hot water yield as possible.
In addition to the above embodiments, other embodiments of the present invention are also possible. For example, it can be used for an electric water heater. All equivalent substitutions or equivalent transformations are the protection scope of the present invention.
Claims (4)
1. The utility model provides a commercial gas hot-water heating system, includes at least one heat source that has low temperature water export, high temperature water entry and combustor, low temperature water export communicates with high temperature water entry through the heat transfer pipeline that encircles the combustor, its characterized in that: the water storage tank is provided with a temperature sensor, and the bottom and the upper part of the water storage tank are respectively provided with a cold water inlet and a hot water outlet; the middle lower part of the water storage tank is provided with a low-temperature water outlet which leads to a water inlet of a heat source through a water pump, and a water outlet of the gas water heating system leads to a high-temperature water inlet arranged in the middle of the water storage tank.
2. A commercial gas-fired water heating system according to claim 1, wherein: the water storage tank is in a vertical cylinder shape, and two sides of the upper part of the water storage tank are respectively provided with a gas water heater used as a heat source.
3. A commercial gas-fired water heating system according to claim 2, wherein: the low-temperature water outlet at the lower part of the water storage tank is respectively communicated with the water inlets of the two gas water heaters through branch pipelines after passing through the water pump, and the water outlets of the two gas water heaters are respectively communicated with the high-temperature water inlet of the water storage tank, so that a parallel heating system of the two gas water heaters is formed.
4. A commercial gas-fired water heating system according to claim 3, wherein: the temperature sensor is arranged between the high-temperature water inlet and the low-temperature water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921118513.7U CN210320605U (en) | 2019-07-17 | 2019-07-17 | Commercial gas hot water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921118513.7U CN210320605U (en) | 2019-07-17 | 2019-07-17 | Commercial gas hot water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210320605U true CN210320605U (en) | 2020-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921118513.7U Active CN210320605U (en) | 2019-07-17 | 2019-07-17 | Commercial gas hot water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210320605U (en) |
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2019
- 2019-07-17 CN CN201921118513.7U patent/CN210320605U/en active Active
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