Waterway control device convenient for water supplement adjustment
By installing a water replenishment valve and a flow sensor on the outside of the cold water inlet pipe in the water circuit control device of the gas water heater, the problems of cumbersome water replenishment operation and difficult maintenance in traditional devices are solved, realizing simple water replenishment adjustment and real-time flow monitoring, and improving the reliability of the equipment and the stability of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUJI XUTAI MASCH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional gas water heaters have flawed water circuit control devices with poor water replenishment regulation, resulting in cumbersome water replenishment operations, difficulty in inspection and maintenance, and impact on equipment lifespan and system efficiency.
A water circuit control device for easy water replenishment adjustment is designed. By placing the water replenishment valve on the outside of the cold water inlet pipe and equipping it with a flow sensor, a simple water replenishment operation and real-time flow monitoring can be achieved. An injection molding integrated sealing process and a brass inlay process are used to prevent the pipe opening from rotating and falling off.
It enables convenient water replenishment adjustment, improves the reliability and service life of the equipment, and ensures the stability and safety of the system.
Smart Images

Figure CN224230355U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of water circuit control technology for gas water heaters, and in particular to a water circuit control device that facilitates water replenishment and adjustment. Background Technology
[0002] The water circuit control device of a gas water heater is a crucial component for controlling heating water and domestic hot water in a home. To improve energy efficiency, most gas water heaters utilize a heat exchanger plate to exchange heat between heating water and cold water to obtain domestic hot water. The entire heating water system operates within a essentially closed piping system. Traditional gas water heater water circuit control devices have some shortcomings in terms of water replenishment regulation. For example, an improperly designed water replenishment valve often leads to cumbersome replenishment operations and makes inspection and maintenance difficult. This not only results in energy waste and reduced system efficiency but also shortens the equipment's lifespan. Therefore, designing a water circuit control device that facilitates water replenishment regulation is a subject of research for those skilled in the art. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a water circuit control device that facilitates water replenishment and adjustment.
[0004] To achieve the above objectives, this utility model provides a water circuit control device for easy water replenishment adjustment, including an inlet valve and an outlet valve, with a heat exchange plate installed between the inlet valve and the outlet valve. The inlet valve includes a first horizontal pipe and a second horizontal pipe arranged vertically. One end of the first horizontal pipe is vertically connected to a first vertical pipe, and the other end is connected to a water pump interface and a pressure gauge interface, respectively. A water replenishment valve is provided inside the first vertical pipe, which is connected to one end of the second horizontal pipe. The other end of the second horizontal pipe is connected to a cold water inlet pipe, and a flow sensor is provided at the connection between the second horizontal pipe and the cold water inlet pipe. The first horizontal pipe, the second horizontal pipe, and the first vertical pipe are connected by a connecting plate to form a water replenishment horizontal section. The water replenishment valve is located outside the cold water inlet pipe, and the water in the cold water inlet pipe flows to the rotor inside the vertical flow sensor. The rotor inside the flow sensor is arranged perpendicular to each other relative to the water replenishment horizontal section. This invention features an integrated water replenishment valve within the inlet valve. The inlet valve is vertically connected to the heat exchange plate, with the cold water inlet pipe located inside and the replenishment valve positioned outside. This design not only simplifies water replenishment but also facilitates inspection and maintenance of the replenishment valve, improving equipment reliability and lifespan. Furthermore, a flow sensor installed on the cold water inlet pipe allows for real-time monitoring of the cold water flow entering the device, ensuring system stability and safety.
[0005] The water supply valve includes a first valve stem, which controls whether the second parallel pipe is connected to the first vertical pipe by adjusting the first valve stem.
[0006] The rotor is sleeved at one end of the sensor base, and the other end of the sensor base is secured with a C-shaped clamp, which contains a magnet. A pin is fixedly connected to the sensor base, passing through a baffle. The baffle restricts the rotor's position within the flow sensor, preventing it from falling off during rotation and effectively reducing rotor friction.
[0007] The outlet valve includes a safety valve, a heating water circuit control valve, a heating water heat exchange plate connecting pipe, and a hot water heat exchange plate connecting pipe. The hot water heat exchange plate connecting pipe is connected to both a cold water inlet pipe and a hot water outlet pipe, and the hot water outlet pipe is equipped with a temperature sensor interface. The heating water circuit control valve includes a heating water inlet pipe, a heating water outlet pipe, and a heating heat exchange pipe connected to the heating water heat exchange plate connecting pipe. The heating heat exchange pipe is equipped with a pressure sensor interface. The safety valve includes a safety valve inlet pipe perpendicular to the heating water outlet pipe, and the safety valve inlet pipe is vertically connected to the safety valve outlet pipe. The cold water inlet pipe is equipped with an inlet filter screen to effectively prevent impurities from entering the water system and avoid clogging or damage to the equipment.
[0008] The heating hot water entering through the heating water inlet pipe is controlled by a water circuit control device to flow to the heating heat exchange pipe or the heating water outlet pipe; the water circuit control device includes a second valve stem controlled by a motor to move up and down, the second valve stem is connected to a first sealing seat and a second sealing seat that are spaced apart, the first sealing seat is connected to a first valve port under the control of the second valve stem, and the second sealing seat is connected to a second valve port under the control of the second valve stem.
[0009] The hot water outlet pipe, heating water outlet pipe, and heating water inlet pipe all use an integrated injection molding sealing process and a brass inlay process to effectively prevent the pipe openings from rotating or falling off.
[0010] The beneficial effects of this utility model by adopting the above technical solution are as follows: By placing the water replenishment valve on the outside of the cold water inlet pipe, not only is convenient water replenishment adjustment and stable water flow control achieved, but also the water replenishment valve is easy to inspect and maintain, improving the reliability and service life of the equipment. Simultaneously, the flow sensor installed on the cold water inlet pipe can monitor the cold water flow rate entering the device in real time, ensuring the stability and safety of the system. Attached Figure Description
[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0012] Figure 1 is a three-dimensional structural diagram of a water circuit control device for easy water replenishment and adjustment according to this utility model;
[0013] Figure 2 is a schematic diagram of the main structure of this utility model;
[0014] Figure 3 is a top view of the structure of this utility model;
[0015] Figure 4 is Figure 3 Schematic diagram of the cross-sectional structure at point AA;
[0016] Figure 5 is Figure 2 Schematic diagram of the cross-sectional structure at the CC section;
[0017] Figure 6 is Figure 2 Schematic diagram of the cross-sectional structure at point BB;
[0018] Figure 7 is a schematic diagram of the exploded three-dimensional structure of the flow sensor in this utility model;
[0019] Figure 8 is a schematic diagram of the main structure of the flow sensor part in this utility model. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] like Figure 1-8 As shown, a water circuit control device for easy water replenishment adjustment includes an inlet valve and an outlet valve 3. A heat exchange plate 1 is installed between the inlet valve and the outlet valve 11. The inlet valve includes a first horizontal pipe 25 and a second horizontal pipe 24 arranged vertically. One end of the first horizontal pipe 25 is vertically connected to a first vertical pipe 26, and the other end is connected to a water pump interface 21 and a pressure gauge interface 20, respectively. A water replenishment valve is provided inside the first vertical pipe 26. The water replenishment valve is connected to one end of the second horizontal pipe 24. The other end of the second horizontal pipe 24 is connected to a cold water inlet pipe 22. A flow sensor is provided at the connection between the second horizontal pipe 24 and the cold water inlet pipe 22. The three pipes, the first horizontal pipe 25, the second horizontal pipe 24, and the first vertical pipe 26, are connected by a connecting plate 2 to form a water replenishment horizontal section. The water replenishment valve is located outside the cold water inlet pipe 22. The water in the cold water inlet pipe 22 flows to the rotor 5 inside the vertical flow sensor. The rotor inside the flow sensor is arranged perpendicular to each other relative to the water replenishment horizontal section.
[0022] In order to control the flow direction of the water supply, the water supply valve includes a first valve stem 23, which controls whether the second horizontal pipe 24 is connected to the first vertical pipe 26.
[0023] As a preferred structure, the rotor 5 is sleeved on one end of the sensor base 6, and the other end of the sensor base 6 is clamped to the outer periphery of a C-shaped fixing clip 7, with a magnet 10 inside. The sensor base 6 is fixedly connected to a pin 8, which passes through a baffle 9 to prevent the rotor from falling off during rotation and to effectively reduce rotor friction.
[0024] As a preferred structure, the outlet valve 3 includes a safety valve 33, a heating water circuit control valve, a heating water heat exchange plate connecting pipe 35, and a hot water heat exchange plate connecting pipe 36. The hot water heat exchange plate connecting pipe 36 is connected to the cold water inlet pipe 22 and the hot water outlet pipe 31, respectively. The hot water outlet pipe 31 is equipped with a temperature sensor interface 27. The heating water circuit control valve includes a heating water inlet pipe 34, a heating water outlet pipe 32, and a heating heat exchange pipe 37 connected to the heating water heat exchange plate connecting pipe 35. The heating heat exchange pipe 37 is equipped with a pressure sensor interface 38. The safety valve 33 includes a safety valve inlet pipe 39 perpendicular to the heating water outlet pipe 32, and the safety valve inlet pipe 39 is vertically connected to the safety valve outlet pipe 40.
[0025] To prevent impurities from entering the water system, an inlet filter is installed at the inlet of the cold water inlet pipe 22.
[0026] The heating hot water entering through the heating water inlet pipe 34 flows to the heating heat exchange pipe 37 or the heating water outlet pipe 32 under the control of the water circuit control device. The water circuit control device includes a second valve stem 11 controlled by a motor 4. The second valve stem 11 is connected to a first sealing seat 12 and a second sealing seat 14 that are spaced apart. The first sealing seat 12 is connected to the first valve port 13 under the control of the second valve stem 11, and the second sealing seat 14 is connected to the second valve port 15 under the control of the second valve stem 11.
[0027] To prevent the pipe openings from rotating or falling off, the openings of the hot water outlet pipe 31, the heating water outlet pipe 32, and the heating water inlet pipe 34 all use an integrated injection molding sealing process and a brass inlay process.
[0028] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A water circuit control device for easy water replenishment and adjustment, comprising an inlet valve and an outlet valve (3), wherein a heat exchange plate (1) is installed between the inlet valve and the outlet valve (3), characterized in that: The water inlet valve includes a first horizontal pipe (25) and a second horizontal pipe (24) arranged vertically. One end of the first horizontal pipe (25) is vertically connected to a first vertical pipe (26), and the other end is connected to a water pump interface (21) and a pressure gauge interface (20). A water replenishment valve is provided inside the first vertical pipe (26), which is connected to one end of the second horizontal pipe (24). The other end of the second horizontal pipe (24) is connected to a cold water inlet pipe (22). A flow sensor is provided at the connection between the second horizontal pipe (24) and the cold water inlet pipe (22). The three pipes, the first horizontal pipe (25), the second horizontal pipe (24), and the first vertical pipe (26), are connected by a connecting plate (2) to form a water replenishment horizontal section. The water replenishment valve is located outside the cold water inlet pipe (22). The water in the cold water inlet pipe (22) flows to the rotor (5) inside the vertical flow sensor. The rotor inside the flow sensor is set perpendicular to the water replenishment horizontal section.
2. The water circuit control device for easy water replenishment and adjustment according to claim 1, characterized in that: The water supply valve includes a first valve stem (23), which controls whether the second horizontal pipe (24) is connected to the first vertical pipe (26).
3. The water circuit control device for easy water replenishment and adjustment according to claim 1, characterized in that: The rotor (5) is sleeved on one end of the sensor seat (6), and the other end of the sensor seat (6) is clamped to the outer periphery of the C-type fixing clip (7). The sensor seat (6) is fixedly connected to the ejector pin (8), and the ejector pin (8) passes through the baffle (9).
4. The water circuit control device for easy water replenishment and adjustment according to claim 1, characterized in that: The outlet valve (3) includes a safety valve (33), a heating water circuit control valve, a heating water heat exchange plate connecting pipe (35), and a hot water heat exchange plate connecting pipe (36). The hot water heat exchange plate connecting pipe (36) is connected to the cold water inlet pipe (22) and the hot water outlet pipe (31), respectively. The hot water outlet pipe (31) is equipped with a temperature sensor interface (27).
5. A water circuit control device for easy water replenishment and adjustment according to claim 4, characterized in that: The heating water circuit control valve includes a heating water inlet pipe (34), a heating water outlet pipe (32), and a heating heat exchange pipe (37) that connects to the heating water heat exchange plate connecting pipe (35). The heating heat exchange pipe (37) is equipped with a pressure sensor interface (38).
6. A water circuit control device for easy water replenishment and adjustment according to claim 4, characterized in that: The safety valve (33) includes a safety valve inlet pipe (39) that is vertically connected to the heating water outlet pipe (32), and the safety valve inlet pipe (39) is vertically connected to the safety valve outlet pipe (40).
7. A water circuit control device for easy water replenishment and adjustment according to claim 5, characterized in that: The heating hot water entering through the heating water inlet pipe (34) is controlled by the water circuit control device to flow to the heating heat exchange pipe (37) or the heating water outlet pipe (32); the water circuit control device includes a second valve stem (11) controlled by a motor (4) to move up and down, the second valve stem (11) is connected to a first sealing seat (12) and a second sealing seat (14) that are spaced apart, the first sealing seat (12) is connected to the first valve port (13) under the control of the second valve stem (11), and the second sealing seat (14) is connected to the second valve port (15) under the control of the second valve stem (11).
8. A water circuit control device for easy water replenishment and adjustment according to claim 4 or 7, characterized in that: The openings of the hot water outlet pipe (31), the heating water outlet pipe (32), and the heating water inlet pipe (34) all use an injection molding integrated sealing process.