Boiler softened water tank with vacuum suppressor

Abstract

The boiler softened water tank comprises a softened water tank body and a support, the bottom of the softened water tank body is fixedly connected with the support, the left side of the softened water tank body is fixedly connected with a liquid level sight glass, the surface of an emptying pipe is fixedly connected with an emptying valve, the bottom of the right side of the softened water tank body is communicated with a boiler pipe, and the bottom of the boiler pipe is communicated with a vacuum suppressor. The utility model relates to the technical field of boiler softened water tanks, a small liquid level control tank is installed outside the tank, a vacuum suppressor is installed at the top of the liquid level control tank and used for exhausting air when water enters, a floating ball valve is installed in the tank and connected with the softened water tank through a U-shaped bend, and the soft water tank is connected with the vacuum suppressor. The normal temperature is kept, the service life of the sealing piece is prolonged, the sealing piece can be maintained in time without shutdown when damaged and is not influenced by use and hot water in the tank, and the problem that the sealing piece of the floating ball valve is used at high temperature for a long time and is easy to age to cause water leakage is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler soft water tanks, in particular to a boiler soft water tank equipped with a vacuum suppressor. Background Art

[0002] Boiler soft water tanks are water storage devices designed specifically for boiler systems. They are used to store softened water. Softening treatment aims to remove hardness components (primarily calcium and magnesium ions) in water to reduce problems such as reduced thermal efficiency, pipe blockage, and equipment corrosion caused by scale formation during boiler operation. By connecting to softening water equipment, the soft water tank ensures that the water quality supplied to the boiler meets standards, thereby extending the service life of the boiler, improving operating efficiency, and reducing maintenance costs. As an important component of the boiler system, it ensures the safe, stable, and efficient operation of the boiler.

[0003] Existing boiler soft water tanks use a float valve installed inside the tank to control the liquid level and ensure sufficient soft water for the boiler. When steam condensate is not being recovered, the water in the tank is at room temperature, ensuring reliable operation of the float valve. However, after steam condensate is recovered, the water level in the tank is maintained above 80°C. The float valve seals are susceptible to aging and leakage from prolonged use at high temperatures, causing the tank to overflow and fail to fully utilize the recovered steam condensate, resulting in waste. Summary of the Invention

[0004] Technical problems solved

[0005] In view of the deficiencies in the prior art, the present invention provides a boiler soft water tank equipped with a vacuum suppressor, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a boiler soft water tank equipped with a vacuum suppressor, comprising a soft water tank and a bracket, the bottom of the soft water tank is fixedly connected to the bracket, a liquid level sight glass is fixedly connected to the left side of the soft water tank, the left side of the bottom of the soft water tank is connected to a drain pipe, the surface of the drain pipe is fixedly connected to a drain valve, the bottom of the right side of the soft water tank is connected to a boiler pipe, the right side of the soft water tank is connected to a liquid level control tank through a conduit, and a vacuum suppressor is provided on the top of the liquid level control tank.

[0007] Preferably, the right side of the liquid level control tank is connected to a water inlet pipe, the inner cavity of the liquid level control tank is provided with a float valve, and the surface of the liquid level control tank is fixedly connected with a flange bolt.

[0008] Preferably, the top of the soft water tank is connected to a vent, and the top of the right side of the soft water tank is connected to a steam condensate recovery pipe.

[0009] Preferably, control valves are provided on the surfaces of the conduit, the water inlet pipe, the steam condensate recovery pipe and the liquid level sight glass.

[0010] This utility model provides a boiler soft water tank equipped with a vacuum suppressor. A small liquid level control tank is installed outside the tank, and a vacuum suppressor is installed on top of the liquid level control tank to exhaust air when water is introduced. A float valve is installed inside the tank and connected to the soft water tank with a U-bend to prevent hot water from entering the tank, maintaining a normal temperature and extending the service life of the seals. If damaged, it can be repaired promptly without shutting down the machine, and is not affected by use or the hot water in the tank. This solves the problem of float valve seals being easily aged and causing water leakage due to long-term use at high temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the front view of the structure in this utility model.

[0012] In the figure, 1-soft water tank, 2-liquid level sight glass, 3-drain pipe, 4-drain valve, 5-boiler pipe, 6-liquid level control tank, 7-vacuum suppressor, 8-water inlet pipe, 9-float valve, 10-vent, 11-steam condensate recovery pipe, 12-conduit, 13-flange bolt. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] See also Figure 1 This practical embodiment provides a technical solution: a boiler soft water tank equipped with a vacuum suppressor, including a soft water tank 1 and a bracket. The bottom of the soft water tank 1 is fixedly connected to the bracket. A liquid level sight glass 2 is fixedly connected to the left side of the soft water tank 1. The left side of the bottom of the soft water tank 1 is connected to an emptying pipe 3. The surface of the emptying pipe 3 is fixedly connected to an emptying valve 4. The bottom of the right side of the soft water tank 1 is connected to a boiler pipe 5. The right side of the soft water tank 1 is connected to a liquid level control tank 6 through a conduit 12. A vacuum suppressor 7 is provided on the top of the liquid level control tank 6.

[0015] The right side of the liquid level control tank 6 is connected to a water inlet pipe 8 , the inner cavity of the liquid level control tank 6 is provided with a float valve 9 , and the surface of the liquid level control tank 6 is fixedly connected with a flange bolt 13 .

[0016] The top of the soft water tank 1 is connected to a vent 10 , and the top of the right side of the soft water tank 1 is connected to a steam condensate recovery pipe 11 .

[0017] Among them, control valves are provided on the surfaces of the conduit 12 , the water inlet pipe 8 , the steam condensate recovery pipe 11 and the liquid level sight glass 2 .

[0018] When in use, the vacuum suppressor works as follows:

[0019] 1. There is a pipe inside the vacuum suppressor that leads to the inside of the liquid level control tank (stable flow tank) to seal off part of the gas. When the water level in the tank is lower than the internal pipe mouth, the possible situation is:

[0020] a. Before the first use or after a water outage, the pressure in the tank is atmospheric pressure. After the tank is connected to the tap water network, since the tap water pressure is higher than atmospheric pressure, the gas in the tank will be compressed by the tap water and will pass through the ball valve, the core component of the vacuum suppressor, to be discharged out of the tank until the water level exceeds the lower end of the pipe (the ball valve is closed at this time), and the pressure of the enclosed gas is balanced with the tap water pressure.

[0021] b. When the flow rate at the outlet of the liquid level control tank is greater than the flow rate at the inlet, a small portion of gas enclosed in the upper part of the tank expands, causing the pressure inside the tank to drop and creating a vacuum. Once a vacuum is created, that is, the pressure inside the tank is lower than the external atmospheric pressure, the ball valve in the vacuum suppressor opens to replenish air, and the pressure inside the tank is balanced with the external pressure until the flow rate at the outlet decreases and the water level line again overflows the lower end of the pipe mouth.

[0022] 2. When the water level in the tank is flush with the internal pipe mouth, it is a critical state.

[0023] 3. When the water level in the tank is higher than the internal pipe mouth and the water level no longer rises, it means that the pressure of a small amount of gas enclosed in the upper part of the liquid level control tank has reached the pressure of the tap water network (the enclosed gas is similar to a small air pressure tank).

[0024] The float always floats on the water. When the water level rises, the float also rises. The rise of the float drives the connecting rod to rise. The connecting rod is connected to the valve at the other end. When it rises to a certain position, the connecting rod supports the rubber piston pad to close the water source. When the water level drops, the float also drops, and the connecting rod drives the piston pad to open.

[0025] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations,

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A boiler soft water tank equipped with a vacuum suppressor, comprising a soft water tank (1) and a bracket, wherein the bottom of the soft water tank (1) is fixedly connected to the bracket, and characterized in that: The left side of the soft water tank (1) is fixedly connected to a liquid level sight glass (2), the left side of the bottom of the soft water tank (1) is connected to an emptying pipe (3), the surface of the emptying pipe (3) is fixedly connected to an emptying valve (4), the bottom of the right side of the soft water tank (1) is connected to a boiler pipe (5), the right side of the soft water tank (1) is connected to a liquid level control tank (6) through a conduit (12), and a vacuum suppressor (7) is provided on the top of the liquid level control tank (6).

2. A boiler soft water tank equipped with a vacuum suppressor according to claim 1, characterized in that: The right side of the liquid level control tank (6) is connected to a water inlet pipe (8), the inner cavity of the liquid level control tank (6) is provided with a float valve (9), and the surface of the liquid level control tank (6) is fixedly connected with a flange bolt (13).

3. A boiler soft water tank equipped with a vacuum suppressor according to claim 2, characterized in that: The top of the soft water tank (1) is connected to a vent (10), and the top of the right side of the soft water tank (1) is connected to a steam condensate recovery pipe (11).

4. A boiler soft water tank equipped with a vacuum suppressor according to claim 1, characterized in that: Control valves are provided on the surfaces of the conduit (12), the water inlet pipe (8), the steam condensate recovery pipe (11), and the liquid level sight glass (2).

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