Commercial water dispenser
By replacing the pressure tank with a water tank and pump in commercial water dispensers, and combining a level sensor and a heat exchanger, the problem of unstable water output caused by low water level in the pressure tank is solved, achieving stable output of hot and warm water, increasing water storage capacity and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG OAKLIN DRINKING WATER EQUIP MFG CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-04-24
AI Technical Summary
When there is little water inside the pressure tank of existing commercial water dispensers, the gas pressure decreases, resulting in unstable water output from the inner tank and affecting the water flow from the faucet.
A water tank and water pump are used instead of a pressure tank. Combined with a liquid level sensor and a heat exchanger, the water level in the tank is kept stable, and the heat exchanger enables the dual output of hot and warm water.
It achieves stable water flow for both hot and warm water faucets, increases the water tank's storage capacity, and eliminates the need for two water dispensers, thus reducing maintenance costs.
Smart Images
Figure CN224155512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water dispenser technology, and in particular to a commercial water dispenser. Background Technology
[0002] Commercial water dispensers are mainly used in large water-using locations such as schools, factories, and government units. The existing structure of commercial water dispensers mainly includes an inner tank and a pressure tank. After cold water enters the pressure tank, it is pumped into the inner tank for heating. However, when the water inside the pressure tank is low, the pressure of the gas (air bladder) inside the pressure tank will decrease, resulting in less water being pumped out. This leads to unstable water output from the inner tank, which in turn greatly affects the water dispensing effect of the faucet. Based on this, we propose a new type of commercial water dispenser with stable water output. Utility Model Content
[0003] In view of the shortcomings of the prior art, this utility model provides a commercial water dispenser, which, after improvement, can effectively solve the problems mentioned in the background art.
[0004] The technical solution of this utility model is as follows:
[0005] A commercial water dispenser includes a body with several hot water taps and several warm water taps on its front end. Inside the body are a water tank, a water pump, an inner tank, and a heat exchanger. The water outlet of the water tank is connected to the water inlet of the water pump via a water pipe. The water outlet of the water pump is connected to the water inlet of the inner tank via a water pipe. The water outlet of the inner tank is connected to a T-junction via a water pipe. One outlet of the T-junction is connected to a hot water tap via a water pipe, and the other outlet of the T-junction is connected to the water inlet of the heat exchanger via a water pipe. The warm water outlet of the heat exchanger is connected to a warm water tap via a water pipe.
[0006] Furthermore, the water tank, water pump, inner tank, and heat exchanger can all be fixedly installed inside the machine body by bolts.
[0007] Furthermore, the water tank has a square shape, and liquid level sensors are fixedly installed in the lower, middle, and upper parts of the water tank by bolts.
[0008] Furthermore, the commercial water dispenser also includes an RO water purifier, which is fixedly installed inside the machine body by bolts, and the water outlet of the RO water purifier is connected to the water inlet of the water tank through a water pipe.
[0009] Furthermore, a water-holding trough is provided on the front surface of the machine body, below the hot water faucet and the warm water faucet.
[0010] Furthermore, casters are installed at the four corners of the bottom surface of the machine body.
[0011] The beneficial effects of this utility model are as follows:
[0012] 1. Compared with the prior art, this utility model replaces the pressure tank used in traditional technology by setting up a water tank and a water pump. No matter what the water level in the water tank is, the water pump can output water stably to ensure the water intake of the inner tank, thereby ensuring the water output stability of the hot water tap and the warm water tap. Moreover, the water tank is square in shape. Compared with the circular structure of the pressure tank, the water tank of this application has a larger water storage capacity in the same volume, which can better ensure the water output stability of this water dispenser.
[0013] 2. By installing a heat exchanger connected to the water outlet of the inner tank, the water coming out of the inner tank is hot. After passing through the heat exchanger, the temperature is reduced to warm water, and then it is output to the warm water tap. This allows the water dispenser to have two water output states: hot water and warm water, thus avoiding the need to use two water dispensers. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model.
[0016] In the diagram: 1. Main body; 2. Hot water tap; 3. Warm water tap; 4. Water tank; 5. Water pump; 6. Inner tank; 7. Heat exchanger; 8. T-junction; 9. Liquid level sensor; 10. RO water purifier; 11. Water tank; 12. Casters. Detailed Implementation
[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:
[0018] like Figure 1-2 As shown,
[0019] A commercial water dispenser includes a body 1. The front end of the body 1 is provided with several hot water taps 2 and several warm water taps 3. Inside the body 1, a water tank 4, a water pump 5, an inner tank 6, and a heat exchanger 7 are respectively installed. The outlet of the water tank 4 is connected to the inlet of the water pump 5 via a water pipe. The outlet of the water pump 5 is connected to the inlet of the inner tank 6 via a water pipe. The outlet of the inner tank 6 is connected to a T-junction 8 via a water pipe. One outlet of the T-junction 8 is connected to the hot water tap 2 via a water pipe, and the other outlet of the T-junction 8 is connected to the inlet of the heat exchanger 7 via a water pipe. The warm water outlet of the heat exchanger 7 is connected to the warm water tap 3 via a water pipe. In this application, water heated by the inner tank 6 can be directly discharged to the hot water tap 2 on one side and enter the heat exchanger 7 for heat exchange, turning it into warm water before being discharged to the warm water tap 3 on the other side.
[0020] It is worth mentioning that the heat exchanger 7 also has another cold water inlet. For example, if the incoming cold water temperature is 25 degrees Celsius and the hot water temperature discharged from the inner tank 6 is 100 degrees Celsius, after heat exchange in the heat exchanger 7, the original 25-degree Celsius cold water may become 80 degrees Celsius. At the same time, this water will flow back into the inner tank 6 to continue heating (connected by pipes at the other inlet and outlet). The 100-degree Celsius hot water discharged from the inner tank 6 may reach 40 degrees Celsius after cooling and is output to the warm water faucet 3 through the warm water outlet of the heat exchanger 7. The above process is the working principle of the heat exchanger 7. The temperature values shown are for illustrative purposes only and are intended to further explain its principle.
[0021] In a preferred embodiment, the water tank 4, water pump 5, inner tank 6, and heat exchanger 7 can all be fixedly installed inside the body 1 by bolts. By using bolt installation, it is convenient to disassemble and install each component, thereby reducing maintenance costs. In addition, the water tank 4, water pump 5, inner tank 6, heat exchanger 7, and RO water purifier 10 are all existing technologies, and will not be described in detail in this application.
[0022] In a preferred embodiment, the water tank 4 has a square shape, and level sensors 9 are fixedly installed on its lower, middle, and upper parts by bolts. By providing level sensors 9, the water level sensors can be connected to an external controller signal, thereby feeding back the water level detection information to the controller. The controller then controls the flow of municipal water into the water dispenser to replenish the water supply in a timely manner.
[0023] In a preferred embodiment, the commercial water dispenser also includes an RO water purifier 10. The RO water purifier 10 is fixedly installed inside the body 1 by bolts, and the outlet of the RO water purifier 10 is connected to the inlet of the water tank 4 via a water pipe. By incorporating the RO water purifier 10, the main purpose is to perform precise multi-layer filtration of the water, thereby improving the quality of the water.
[0024] In a preferred embodiment, a water tank 11 is provided on the front surface of the body 1, below the hot water faucet 2 and the warm water faucet 3. The water tank 11 facilitates water filling for the user.
[0025] In a preferred embodiment, casters 12 are installed at the four corners of the bottom surface of the body 1. By providing casters 12, the flexibility of this water dispenser can be improved.
[0026] In this application, the water pump 5, inner tank 6, heat exchanger 7, and RO water purifier 10 are all electrically connected to an external controller. When the user uses water (each faucet is equipped with a water outlet sensor, which is electrically connected to the controller), the water outlet sensor will trigger the controller, which will start the water pump 5 to pump water into the inner tank 6 for heating. When the level sensor 9 in the water tank 4 detects that the water level in the water tank 4 is low, the controller will control the mains water (the valve on the pipe will open) to enter the RO water purifier 10. After passing through the multiple layers of filtration in the RO water purifier 10, the water will enter the water tank 4 for replenishment.
[0027] The working principle of this utility model is as follows: First, water enters the RO water purifier 10, and after being filtered by the RO water purifier 10, it enters the water tank 4. Under the action of the water pump 5, the water is input into the inner tank 6 for heating. The hot water output from the inner tank 6 is delivered to the hot water faucet 2 on one hand, and enters the heat exchanger 7 on the other hand. The water is cooled down after passing through the heat exchanger 7 and becomes warm water. This warm water is then delivered to the warm water faucet 3.
[0028] It should be noted that the main problem with the existing technology is that when there is less water inside the pressure tank, the pressure of the gas (air bladder) inside the pressure tank will decrease, which will reduce the amount of water pumped out, resulting in unstable water output from the inner tank, and thus greatly affecting the water output of the faucet of the commercial water dispenser.
[0029] Therefore, with the improvements made in this application, by replacing the pressure tank used in traditional technology with a water tank 4 and a water pump 5, the water pump 5 can stably output water regardless of the water level in the water tank 4, ensuring the water intake of the inner tank 6, thereby ensuring the stability of the hot water tap 2 and the warm water tap 3. Moreover, the water tank 4 has a square shape, which, compared with the circular structure of the pressure tank, allows for a larger water storage capacity within the same volume, thus better ensuring the stability of the water output of this water dispenser.
[0030] The above embodiments are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.
Claims
1. A commercial water dispenser, comprising a body, wherein a plurality of hot water taps and a plurality of warm water taps are provided on the front end face of the body, characterized in that: The machine body is equipped with a water tank, a water pump, an inner tank, and a heat exchanger. The water outlet of the water tank is connected to the water inlet of the water pump via a water pipe. The water outlet of the water pump is connected to the water inlet of the inner tank via a water pipe. The water outlet of the inner tank is connected to a T-junction via a water pipe. One outlet of the T-junction is connected to a hot water tap via a water pipe. The other outlet of the T-junction is connected to the water inlet of the heat exchanger via a water pipe. The warm water outlet of the heat exchanger is connected to a warm water tap via a water pipe.
2. A commercial water dispenser according to claim 1, characterized in that: The water tank, water pump, inner liner, and heat exchanger can all be fixedly installed inside the machine body by bolts.
3. A commercial water dispenser according to claim 2, characterized in that: The water tank is square in shape, and liquid level sensors are fixedly installed in the lower, middle and upper parts of the water tank by bolts.
4. A commercial water dispenser according to claim 3, characterized in that: The commercial water dispenser also includes an RO water purifier, which is fixedly installed inside the machine body by bolts. The outlet of the RO water purifier is connected to the inlet of the water tank through a water pipe.
5. A commercial water dispenser according to claim 4, characterized in that: A water tank is provided on the front surface of the machine body, below the hot water faucet and the warm water faucet.
6. A commercial water dispenser according to claim 5, characterized in that: The machine body is equipped with casters at the four corners of its bottom surface.