A vacuum type hot water unit boiler pressure stabilizing water supply device

Abstract

The utility model relates to boiler water supply technical field especially relates to a kind of vacuum hot water unit boiler's pressure stabilizing water supply device, including water supply tank, water supply tank side wall is fixedly connected with water outlet pipe and penetrates, the upper end of water outlet pipe is threadedly connected with pressure sensor;Shell, the shell side wall is provided with multiple notches, the shell inside is threadedly connected with slab, the lower end of slab is fixedly connected with filter cartridge, the slab inside is fixedly connected with inlet pipe and penetrates;Tank, tank side wall is fixedly connected with pipeline and penetrates.When pressure sensor detects that the pressure in water outlet pipe is too large, controller rapidly controls electronic valve to open, lets overpressure water flow through pipeline and enters tank temporary storage, this process can reduce the pressure in water outlet pipe in time, while when the pressure in water outlet pipe is too small, nitrogen in tank can promote stored water source to return to water outlet pipe through pipeline, this can guarantee that boiler can obtain enough pressure water source supply.

Description

Technical Field

[0001] This utility model relates to the field of boiler water supply technology, and in particular to a pressure stabilizing water supply device for a vacuum hot water unit boiler. Background Technology

[0002] The water replenishment device for a vacuum hot water boiler is an automated water replenishment device specifically designed for vacuum hot water boilers to maintain system water circulation. Its core function is to ensure that the system water does not run dry, vaporize, or become overpressurized when the boiler is operating under negative pressure, and to continuously provide a stable circulation pressure to ensure heat exchange efficiency and equipment safety.

[0003] Some traditional vacuum hot water boilers have water supply devices that cannot respond quickly to pressure changes, resulting in insufficient water supply or excessive pressure fluctuations, which affects the normal operation and thermal efficiency of the boiler. Utility Model Content

[0004] The purpose of this invention is to provide a pressure stabilizing and water replenishment device for a vacuum hot water unit boiler. This device facilitates pressure stabilizing and water replenishment inside the boiler, thus solving the problem of inconvenience in stabilizing and replenishing water inside the boiler in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pressure-stabilizing and water-replenishing device for a vacuum hot water boiler includes a water replenishment tank, a water outlet pipe fixedly connected through the side wall of the water replenishment tank, a pressure sensor threadedly connected to the upper end of the water outlet pipe, and a flange fixedly connected to the end of the water outlet pipe; a shell, which is bolted to the upper interior of the water replenishment tank, the side wall of the shell having multiple slots, a plate threadedly connected inside the shell, a filter cartridge fixedly connected to the lower end of the plate, and a water inlet pipe fixedly connected through the inside of the plate; and a tank body, which is located on the side wall of the water replenishment tank, and a pipe fixedly connected through the side wall of the tank body, the pipe being connected to the water outlet pipe.

[0007] Preferably, a water replenishment pump is fixedly connected inside the water replenishment tank, and the output end of the water replenishment pump is connected to the end of the water outlet pipe.

[0008] Preferably, a protrusion is fixedly connected to the side wall of the water replenishment tank, and the side wall of the protrusion is fixedly connected to the side wall of the tank body.

[0009] Preferably, a groove is provided at the bottom of the housing, a movable plate is slidably connected inside the housing, and a spring is fixedly connected between the lower end of the movable plate and the bottom of the groove.

[0010] Preferably, two vertical rods are fixedly connected to the lower end of the plate, and the vertical rods are slidably connected through the lower end of the filter cartridge, with the lower end of the vertical rods fitting against the upper end of the movable plate.

[0011] Preferably, an air pump is fixedly connected to the upper end of the tank, the output end of the air pump is connected to the inside of the tank, and a pressure relief valve is fixedly connected through the upper end of the tank, the pressure relief valve is connected to the inside of the tank.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] 1. When the pressure sensor detects excessive pressure inside the outlet pipe, the controller quickly opens the electronic valve, allowing the overpressured water to flow through the pipe into the tank for temporary storage. This process can promptly reduce the pressure inside the outlet pipe, preventing damage to the boiler and related pipes due to excessive pressure. At the same time, when the pressure inside the outlet pipe is too low, the nitrogen in the tank will push the stored water back through the pipe to the outlet pipe, increasing the pressure inside the pipe. This ensures that the boiler always receives a sufficient water supply, maintaining normal water circulation and heat exchange within the boiler, avoiding problems such as dry burning and localized overheating due to insufficient pressure, and extending the boiler's service life.

[0014] 2. After disconnecting the inlet pipe from the external water supply pipe, begin rotating the plate to remove the filter cartridge. At this time, the spring releases energy, pushing the movable plate upwards. As the filter cartridge and other components are removed from the housing, the movable plate promptly seals the opening inside the housing. This design effectively prevents a large amount of water from leaking out of the water tank from the housing opening during filter cartridge replacement, reducing water waste and preventing damage to surrounding equipment and the environment due to water leakage. Attached Figure Description

[0015] Figure 1 This is a front view of the external structure of a pressure stabilizing and water supply device for a vacuum hot water unit boiler proposed in this utility model.

[0016] Figure 2 This is a left-side external structural schematic diagram of a pressure stabilizing and water supply device for a vacuum hot water unit boiler proposed in this utility model.

[0017] Figure 3 This is a right-side sectional view of a pressure-stabilizing and water-replenishing device for a vacuum hot water boiler unit proposed in this utility model.

[0018] Figure 4 This is a schematic diagram of the external structure of the pressure stabilizing and water supply device for a vacuum hot water unit boiler proposed in this utility model.

[0019] In the diagram: 001, water tank; 101, water outlet pipe; 102, pressure sensor; 103, flange; 104, water pump; 105, protrusion; 002, housing; 201, groove; 202, movable plate; 203, spring; 204, slot; 205, plate; 206, filter cartridge; 207, vertical rod; 208, water inlet pipe; 003, tank body; 301, air pump; 302, pressure relief valve; 303, pipeline. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figure 1-4A pressure-stabilizing water supply device for a vacuum hot water boiler includes a water supply tank 001, with a water outlet pipe 101 fixedly connected through the side wall of the water supply tank 001. A pressure sensor 102 is threadedly connected to the upper end of the water outlet pipe 101, and a flange 103 is fixedly connected to the end of the water outlet pipe 101. A housing 002 is bolted to the upper interior of the water supply tank 001. Multiple slots 204 are provided on the side wall of the housing 002. A plate 205 is threadedly connected inside the housing 002, and a filter cartridge 206 is fixedly connected to the lower end of the plate 205. A filter cartridge 206 is fixedly connected through the interior of the plate 205. There is an inlet pipe 208; a tank 003, which is located on the side wall of the water replenishment tank 001. A pipe 303 is fixedly connected through the side wall of the tank 003, and the pipe 303 is connected to the outlet pipe 101. A sealing gasket is fixedly connected between the lower end of the shell 002 and the upper end of the water replenishment tank 001. A sealing ring is provided between the plate 205 and the inside of the shell 002. Nitrogen gas is supplied inside the tank 003. A controller is fixedly connected to the right side of the tank 003. The controller is electrically connected to the pressure sensor 102 and the electronic valve. The detection end of the pressure sensor 102 is located inside the outlet pipe 101. The pipeline 303 is equipped with an electronic valve. The operator fixes the outlet pipe 101 to the end of the boiler inlet pipe via flange 103. The outlet pipe 101 draws water from the makeup water tank 001 and delivers it to the boiler via the inlet pipe. Simultaneously, pressure sensor 102 monitors the pressure inside the outlet pipe 101. The inlet pipe 208 connects to an external water supply pipe, which delivers water from the boiler to the makeup water tank 001. Simultaneously, the water enters the filter cartridge 206, where it is filtered. After filtration and purification, the purified water enters the water supply tank 001 through multiple slots 204. When the pressure inside the outlet pipe 101 is too high, the controller controls the electronic valve to open, allowing the water with excessive pressure inside the outlet pipe 101 to flow through the pipe 303 into the tank 003 for temporary storage, thus maintaining a stable pressure inside the outlet pipe 101. When the pressure inside the outlet pipe 101 is too low, the nitrogen gas inside the tank 003 pushes the water source, allowing the water source to enter the outlet pipe 101 through the pipe 303, thus maintaining a stable pressure inside the outlet pipe 101.

[0022] A water supply pump 104 is fixedly connected inside the water supply tank 001. The output end of the water supply pump 104 is connected to the end of the water outlet pipe 101. The water supply pump 104 draws water from the inside of the water supply tank 001 and then delivers the water to the inside of the water outlet pipe 101. The water supply pump 104 is electrically connected to the controller.

[0023] The side wall of the water tank 001 is fixedly connected to a protrusion 105, and the side wall of the protrusion 105 is fixedly connected to the side wall of the tank body 003, thereby supporting the tank body 003.

[0024] A groove 201 is provided at the bottom of the housing 002. A movable plate 202 is slidably connected inside the housing 002. A spring 203 is fixedly connected between the lower end of the movable plate 202 and the bottom of the groove 201. The groove 201 accommodates the retracted spring 203. A sealing ring is fixedly connected to the side wall of the movable plate 202. The side wall of the sealing ring is tightly fitted to the inner wall of the housing 002.

[0025] Two vertical rods 207 are fixedly connected to the lower end of the plate 205. The vertical rods 207 are slidably connected to the lower end of the filter cartridge 206. The lower end of the vertical rods 207 is attached to the upper end of the movable plate 202. A sealing ring is fixedly connected to the side wall of the vertical rods 207. The sealing ring is tightly attached to the inner wall of the filter cartridge 206. During the process of the plate 205 being threaded into the inside of the housing 002, the vertical rods 207 push the movable plate 202 downward to slide.

[0026] An air pump 301 is fixedly connected to the upper end of the tank 003. The output end of the air pump 301 is connected to the inside of the tank 003. A pressure relief valve 302 is fixedly connected through the upper end of the tank 003. The pressure relief valve 302 is connected to the inside of the tank 003. The air pump 301 is connected to the output pipe of an external nitrogen storage tank. The air pump 301 draws nitrogen from the external storage tank and delivers the nitrogen to the inside of the tank 003. At the same time, the pressure relief valve 302 is adjusted to a suitable pressure. When the pressure inside the tank 003 reaches the set value, the pressure relief valve 302 releases pressure inside the tank 003. The air pump 301 is electrically connected to the controller.

[0027] In this utility model, the operator fixes the outlet pipe 101 to the end of the boiler inlet pipe through the flange 103. The operator fixes the housing 002 to the upper part of the water supply tank 001 with bolts. Then, the operator fixes the filter cartridge 206 to the lower end of the plate 205, and the vertical rod 207 passes through the lower end of the filter cartridge 206. Then, the operator threads the plate 205 to the inside of the housing 002. During this process, the vertical rod 207 pushes the movable plate 202 downward to slide. After the lower end of the movable plate 202 is attached to the bottom of the housing 002, the spring 203 retracts into the groove 201. The external water supply pipe delivers the internal water source to the inside of the water supply tank 001 through the inlet pipe 208. At the same time, the water source enters the inside of the filter cartridge 206 and is filtered and purified by the filter cartridge 206. The purified water source enters the inside of the water supply tank 001 through multiple slots 204.

[0028] The controller controls the operation of the water supply pump 104, which draws water from the water supply tank 001 and delivers it to the outlet pipe 101. The water is then transported to the boiler through the inlet pipe. Simultaneously, the pressure sensor 102 detects the pressure inside the outlet pipe 101. When the pressure inside the outlet pipe 101 is too high, the controller controls the electronic valve to open, allowing the water with excessive pressure to flow through the pipe 303 into the tank 003 for temporary storage, thus maintaining a stable pressure inside the outlet pipe 101. When the pressure inside the outlet pipe 101 is too low, nitrogen gas inside the tank 003 pushes the water through the pipe 303 into the outlet pipe 101, maintaining a stable pressure inside the outlet pipe 101. The controller also controls the operation of the air pump 301, which draws nitrogen from the external storage tank and delivers it to the tank 003.

[0029] When the filter cartridge 206 needs to be replaced, the operator disconnects the connection between the inlet pipe 208 and the external water supply pipe. Then, the operator rotates the plate 205, causing the plate 205 to drive the filter cartridge 206 and the vertical rod 207 to slide upwards. At the same time, the energy of the spring 203 is gradually released, and the spring 203 pushes the movable plate 202 to slide upwards. When the plate 205 drives the filter cartridge 206 and the vertical rod 207 out of the housing 002, the movable plate 202 seals the opening inside the housing 002. Then, the operator can replace and clean the filter cartridge 206.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A pressure stabilizing and water replenishing device for a vacuum type hot water unit boiler, characterized in that, include A water supply tank (001) is provided, with a water outlet pipe (101) fixedly connected through the side wall of the water supply tank (001). A pressure sensor (102) is threadedly connected to the upper end of the water outlet pipe (101), and a flange (103) is fixedly connected to the end of the water outlet pipe (101). The housing (002) is fixed to the upper part of the water supply tank (001) by bolts. The side wall of the housing (002) is provided with multiple slots (204). The housing (002) is threadedly connected to a plate (205). The lower end of the plate (205) is fixedly connected to a filter cartridge (206). The plate (205) is fixedly connected to a water inlet pipe (208) through the inside. The tank (003) is located on the side wall of the water supply tank (001). A pipe (303) is fixedly connected through the side wall of the tank (003) and the pipe (303) is connected to the water outlet pipe (101).

2. The pressure stabilizing and water supplementing device for a vacuum-type hot water unit boiler according to claim 1, wherein The water replenishment tank (001) is fixedly connected to a water replenishment pump (104), and the output end of the water replenishment pump (104) is connected to the end of the water outlet pipe (101).

3. The water level regulating and replenishing device for a vacuum hot water unit boiler according to claim 1, wherein The side wall of the water replenishment tank (001) is fixedly connected to a protrusion (105), and the side wall of the protrusion (105) is fixedly connected to the side wall of the tank body (003).

4. The water level regulating and replenishing device for a vacuum hot water unit boiler according to claim 1, wherein The bottom of the housing (002) is provided with a groove (201), and a movable plate (202) is slidably connected inside the housing (002). A spring (203) is fixedly connected between the lower end of the movable plate (202) and the bottom of the groove (201).

5. The water level regulating and replenishing device for a vacuum hot water unit boiler according to claim 1, wherein Two vertical rods (207) are fixedly connected to the lower end of the plate (205). The vertical rods (207) are slidably connected to the lower end of the filter cylinder (206). The lower end of the vertical rods (207) is attached to the upper end of the movable plate (202).

6. The water level regulating and replenishing device for a vacuum hot water unit boiler according to claim 1, wherein An air pump (301) is fixedly connected to the upper end of the tank (003). The output end of the air pump (301) is connected to the inside of the tank (003). A pressure relief valve (302) is fixedly connected through the upper end of the tank (003). The pressure relief valve (302) is connected to the inside of the tank (003).

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