CN2488012Y - Float valve siphon-type water level controller for solar water heater - Google Patents

Abstract

The utility model relates to a water level control device, in particular to a float valve siphon type water level control device for solar water heaters, which consists of three movable connected cavities as the main body. Water inlet, one-way return valve, one-way return valve seat, boss, one-way upward water valve, one-way upward water valve seat, partition, valve body, floating ball rod, floating ball, which integrates the upper and lower water pipes according to the principle of siphon The purpose of water supply and water supply is realized in one body, the structure is simple, the volume is small, it is easy to install and disassemble, and it is convenient to maintain.

Description

Float valve siphon water level control device for solar water heater

The utility model relates to a water level control device, in particular to a float valve siphon type water level control device for solar water heaters.

At present, solar water heaters have entered thousands of households. The device for controlling the water level in solar water heaters is generally mechanical. It is mainly composed of a float ball, a valve stem, and a valve connection to form a float valve. The float valve is placed horizontally in the water tank, and the valve stem is equivalent to a lever. , is to use the buoyancy of the float and the principle of leverage to balance the water pressure to control the water level and stop the water. It can only play the role of control and water stop. It has a single purpose, and because it has no return water system, it is inconvenient to integrate antifreeze and empty System; this device for controlling the water level is directly fixed in the water tank when the solar water heater is made, and the floating ball of this ball float valve is large in size, which is not easy to disassemble and maintain.

The purpose of this utility model is to provide a set of upper and lower water pipes, so that the water level control and water-stop performance are reliable, and the antifreeze and emptying system can be integrated in cold regions. The structure is simple, easy to disassemble, install and maintain, and the small volume is used for solar Float valve siphon type water level control device for water heater.

The technical scheme of the utility model is as follows: a floating valve siphon water level control device for solar water heaters, including a set of floating balls on the top of the floating ball rod, the lower part of the floating ball rod is connected with a valve body, and its main body is from top to bottom. The bottom is composed of three hollow cavities that are connected together by flexible connections. They are the guide cavity, the middle cavity and the lower cavity in turn; the two ends of the guide cavity are open; the valve body is in the middle cavity, and the shape of the upper end of the middle cavity is the same as that of the valve. The bodies have the same shape and a hole in the middle. The outer diameter of the hole is larger than the outer diameter of the valve stem. There is an annular boss on the inner wall of the upper third of the lower cavity. The one-way water valve seat is placed on the boss, and the one-way water valve The valve is embedded in the one-way water valve seat, and a partition with holes on the edge is placed on the upper end of the one-way water valve seat and its shape is similar to that of the lower cavity; There is a sleeve in the through hole, and a sealing ring is plugged between the sleeve and the through hole. The sleeve and the one-way return valve seat are connected by threads, and the one-way return valve is embedded on the one-way return valve seat. One end of the one-way return valve seat is attached to the inner wall of the lower cavity and has the same shape. The bottom of the lower cavity is a constriction, and the constriction is the water inlet. Threads are arranged on the outer wall below the through hole above the platform.

The guide cavity, the middle cavity and the lower cavity are cylindrical.

The guide cavity, the middle cavity and the lower cavity are integrally connected by thread.

The utility model has the following effects:

1) The structure is simple, easy to install, disassemble and maintain: because three detachable cavities are used as the main body, a compact structure is formed. Just need to open the bolts for disassembly, installation and maintenance like this, which is convenient and reliable.

2) Easy to integrate anti-freezing and emptying system: due to the return water system, the water in the return pipe of the solar water heater can be released in time in cold regions, preventing the water in the return pipe from being frozen and affecting the durability of the return pipe, which is safe and reliable.

3) Reliable automatic control of water level and water stop: use the buoyancy of the floating ball and the pressure of the water itself, so that it can automatically control the water level and reach the water reliably.

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a schematic diagram of the water supply state of the utility model.

Fig. 2 is a schematic diagram of the backwater state of the utility model.

Fig. 3 is a structural schematic diagram of the separator 11 of the present invention.

FIG. 4 is a top view of the intermediate cavity 15 of the present invention.

Embodiment: A float valve siphon type water level control device for solar water heaters, including a set of float balls 7 on the top of the float rod 12, the lower part of the float rod 12 is connected to the valve body 5, and its main body is from top to bottom The three hollow cavities are movably connected into one body, they are the guide cavity 14, the middle cavity 15, and the lower cavity 16 in turn; the two ends of the guide cavity 14 are open; the valve body 5 is in the middle cavity 15, and the middle The shape of the upper end of the cavity 15 is the same as that of the valve body 5 and there is a hole 18 in the middle. The upward water valve seat 10 is placed on the boss 22, the one-way upward water valve 4 is embedded in the one-way upward water valve seat 10, and a partition 11 with holes on the edge is placed on the upper end of the one-way upward water valve seat 10 and has the same shape as the lower cavity. The shapes of 16 are similar; there is a through hole 23 on the side wall of the lower third of the lower cavity 16, and a sleeve 20 is sleeved in the through hole 23, and a sealing ring 19 is plugged between the sleeve 20 and the through hole 23, and the sleeve The pipe 20 and the one-way return valve seat 9 are connected by threads, the one-way return valve 2 is embedded on the one-way return valve seat 9, and one end of the one-way return valve seat 9 is attached to the inner wall of the lower cavity 16 and has the same shape , the bottom of lower cavity 16 is a constriction, and the constriction place is water inlet 1, and the upper end of water inlet 1 is an outer boss, and there are threads on the outer wall below the through hole 23 above the outer boss of lower cavity 16. Described guide chamber 14, middle chamber 15, lower chamber 16 adopt screw connection to become one; Described guide chamber 14, middle chamber 15, lower chamber 16 are garden cylindrical; Described one-way backwater The valve seat 9 and the one-way upward water valve seat 10 are hollow, the outer wall is a conical body, and the middle is a cone; the valve body 5 is a solid cone; the one-way upward water valve 4 is spherical; the one-way return water The valve 2 is "T" shaped; four oblong holes 17 are evenly distributed on the edge of the partition 11 . The partition plate 11 limits the positions of the one-way upward water valve 4 and the valve body 5 . Before use, put the sleeve 20 into the through hole 23 of the lower cavity 16 with the sealing ring 19, and the one-way return valve seat 9 is connected to the sleeve 20 by threads, and the one-way return valve 2 is embedded in the one-way valve. On the backwater valve seat 9, place the one-way upward water valve seat 10 on the boss 22 in the lower cavity 16, the one-way upward water valve 4 is embedded in the one-way upward water valve seat 10, and place the partition plate 11 on the one-way upward water valve seat 10. On the top of the water valve seat 10, extend the float rod 12 connected with the valve body 5 into the middle cavity 15 from the lower part of the middle cavity 15, the float rod 12 just passes through the hole 18, and then screw on the top of the middle cavity 15 Guide the cavity 14, set the floating ball 7 on the top of the floating ball rod 12, install the upper and lower cavity 16 at the bottom of the middle cavity 15, and install the whole connected device vertically on the upper and lower nozzles of the lower part of the solar water heater with bolts. When the water level in the water tank does not reach the control water level 6, the buoyancy of the valve body 5 is less than the gravity. At this time, the valve body 5 falls on the partition plate 11, and the water enters the cavity from the water inlet 1 and goes upward in the direction of the arrow as shown in Figure 1. Flow, enter the water tank through the hole 17 on the partition 11, the one-way water return valve 4 opens with the impact of water, at the beginning, because the pressure of the water in the water level control device is greater than the pressure of the water in the water tank, the one-way water return valve 2 In the closed state, due to the relatively small impact force of the water, the valve body 5 is not separated from the partition 11. With the increase of the water intake, the valve body 5 separates from the partition 11 and moves upward. When the water level reaches the control water level 6, as shown in the figure The buoyancy of the valve body 5 shown in 2 is greater than the gravity, and the valve body 5 moves upward with the impact of water until it closes; the one-way water valve 4 is closed due to its own weight, and the cavity at the lower part of the one-way water valve 4 forms a negative pressure , when the water in the water tank is heated to the temperature required by the user, the user opens the hot water valve when the water is used. At this time, due to the formation of the siphon phenomenon, the one-way return valve 2 is opened, and the hot water in the water tank is discharged from the through hole 23. Enter the lower cavity 16 and flow out along the water inlet 1 to realize the integration of the upper and lower water pipes.

When the water level in the water tank is lower than the control water level, enter the water supply process as previously described.

The guide cavity 14, the middle cavity 15, and the lower cavity 16 can also be prismatic, and the connection among them can also be flanged.

This floating valve siphon type water level control device can be made of steel or engineering plastics; it can also be used to control the water level in other equipment with return water devices.

Claims (8)

1. A floating valve siphon type water level control device for solar water heaters, comprising a set of floating balls (7) on the top of the floating ball rod (12), the lower part of the floating ball rod (12) is connected with a valve body (5), It is characterized in that its main body consists of three hollow cavities that are movably connected into one body from top to bottom, and they are in turn a guiding cavity (14), an intermediate cavity (15), and a lower cavity (16); the guiding cavity (14) both ends are open; the valve body (5) is in the middle cavity (15), the shape of the upper end of the middle cavity (15) is the same as that of the valve body (5) and there is a hole (18) in the middle, and the hole (18) The outer diameter is greater than the outer diameter of the valve stem (12), and there is an annular boss (22) on the inner wall of the upper third of the lower cavity (16), and the one-way water inlet valve seat (10) is placed on the boss (22). The upper and one-way upward water valves (4) are embedded in the one-way upward water valve seat (10), and a partition plate (11) with holes on the edge is placed on the upper end of the one-way upward water valve seat (10) and has the same shape as the lower cavity (16). ) are similar in shape; there is a through hole (23) on the side wall of the bottom third of the lower chamber (16), the through hole (23) is covered with a sleeve (20), the sleeve (20) and the through hole (23) is plugged with a sealing ring (19), the casing (20) is threadedly connected to the one-way return valve seat (9), and the one-way return valve (2) is embedded in the one-way return valve seat (9). ), one end of the one-way return valve seat (9) is attached to the inner wall of the lower cavity (16) and has the same shape, and the bottom of the lower cavity (16) is a constriction, and the constriction is the water inlet (1), The upper end of the water inlet (1) is an outer boss, and threads are arranged on the outer wall below the through hole (23) above the outer boss of the lower cavity (16). 2. The float valve siphon type water level control device for solar water heaters as claimed in claim 1, characterized in that the guide cavity (14), the middle cavity (15), and the lower cavity (16) are integrally connected by threads . 3. The floating valve siphon water level control device for solar water heaters as claimed in claim 1 or 2, characterized in that the guide cavity (14), the middle cavity (15), and the lower cavity (16) are garden columns shape. 4. The floating valve siphon type water level control device for solar water heaters as claimed in claim 1 or 2, characterized in that the one-way return valve seat (9) and the one-way upward water valve seat (10) are hollow, and the outer wall It is a truncated cone with a cone in the middle; the valve body (5) is a solid truncated cone. 5. The float valve siphon type water level control device for solar water heaters as claimed in claim 1 or 2, characterized in that the one-way upward water valve (4) is spherical. 6. The float valve siphon type water level control device for solar water heaters as claimed in claim 1 or 2, characterized in that the one-way water return valve (2) is "T" shaped. 7. The float valve siphon type water level control device for solar water heater according to claim 1 or 2, characterized in that four oblong holes (17) are evenly distributed on the edge of the partition (11). 8. The float valve siphon water level control device for solar water heaters according to claim 1, characterized in that the guide cavity (14), the middle cavity (15) and the lower cavity (16) are prismatic.

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