Boiler feed water treatment device

Abstract

The utility model relates to the technical field of water treatment devices, in particular to a boiler feed water treatment device. According to the technical scheme, the device comprises a salt box, a pressure tank and a cleaning mechanism, an automatic chemical feeder is fixedly installed at the top of the salt box and comprises a one-way valve, a detection pipe, a pH value detector, a chemical mixing pipe, a metering pump and a chemical feeding tank, a liquid inlet box is fixedly installed at the top of the salt box, and a saline water inlet pipe extending into the salt box is fixedly installed on one side of the liquid inlet box; a submersible pump is fixedly mounted at the bottom end of the saline water inlet pipe. The pH value detector is used for monitoring the pH value of discharged soft water, when the pH value of the discharged soft water is not within a set range, the pH value detector transmits an electric signal to the metering pump, the metering pump quantitatively conveys liquid medicine in the medicine adding tank to the medicine mixing pipe, and the pH value of supplemented water is neutralized; the pH value of boiler feed water reaches a set range, the function of neutralizing the pH value through automatic dosing of the device is achieved, and the boiler feed water quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment devices, in particular to a boiler feed water treatment device. Background Technique

[0002] A boiler is an energy conversion device. The energy input into the boiler includes chemical energy and electrical energy in fuel. The boiler outputs steam, high-temperature water or organic heat carriers with a certain amount of heat energy. Boilers are widely used in industrial production. However, if the boiler make-up water contains hardness salts, such as calcium and magnesium ions, scale will be formed on the heating surface of the boiler, thereby reducing the boiler thermal efficiency, increasing fuel consumption, and even possibly causing local overheating to damage components and cause explosions. Therefore, a boiler feed water treatment device is required to treat the boiler feed water. Among them, the "boiler make-up water treatment device" disclosed in the application number: "CN208008634U" has solved the technical drawbacks of poor water purification effect, low water purification intensity, unsatisfactory water purification effect, easy blockage in the boiler, and affecting work efficiency. However, there are still many defects in the actual use of similar structures. For example, it does not have the function of resin filler regeneration. When the resin filler for filtering feed water is used for a long time, impurities will adhere to its surface, reducing the filtering effect; at the same time, it does not have the function of detecting the pH value of the feed water, resulting in the pH value of the boiler feed water exceeding the standard and affecting the service life of the boiler. Therefore, a boiler feed water treatment device needs to be designed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a boiler feed water treatment device to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A boiler feed water treatment device, including a salt tank, a pressure tank, and a cleaning mechanism. A pressure tank is fixedly installed inside the salt tank. A cleaning mechanism is rotatably installed at the top of the bottom of the pressure tank, and the cleaning mechanism includes a bevel gear ring, a cleaning scraper, a bevel gear, and a driving motor. An automatic chemical feeder is fixedly installed on the top of the salt tank, and the automatic chemical feeder includes a one-way valve, a detection tube, a pH detector, a mixing tube, a metering pump, and a chemical addition tank. A liquid inlet tank is fixedly installed on the top of the salt tank. A brine inlet pipe extending into the salt tank is fixedly installed on one side of the liquid inlet tank. A submersible pump is fixedly installed at the bottom end of the brine inlet pipe.

[0005] Preferably, a controller is fixedly installed on the top of the salt tank, and a liquid level gauge is installed through the side of the salt tank.

[0006] Preferably, a detection tube is installed through one end of the one-way valve, a pH detector is fixedly installed on the front surface of the detection tube, a mixing tube is threadedly installed at one end of the detection tube, a metering pump is installed on the top of the mixing tube through a pipeline, and the input end of the metering pump is connected to the bottom of the chemical addition tank through a pipeline in a penetrating manner.

[0007] Preferably, a water pump is fixedly installed on the top of the liquid inlet tank, a soft water outlet pipe extending into the pressure tank is fixedly installed inside the liquid inlet tank, and a water distributor is fixedly installed at the bottom end of the soft water outlet pipe.

[0008] Preferably, the bevel gear ring is rotatably installed inside the pressure tank through an orbital groove, cleaning scrapers are fixedly installed on both sides of the bottom of the bevel gear ring, and one side of the cleaning scraper is attached to the inner wall of the pressure tank. A driving motor is fixedly installed on one side of the pressure tank, and a bevel gear is fixedly installed at the output end of the driving motor, and the bevel gear is meshed with the bottom of the bevel gear ring.

[0009] Preferably, the inside of the pressure tank is filled with resin filler, and a sewage discharge valve extending out of the bottom of the salt tank is fixedly installed on the pressure tank.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] 1. By monitoring the pH value of the discharged soft water through the pH detector, when the pH value of the discharged soft water is not within the set range, the pH detector transmits an electrical signal to the metering pump, and the metering pump quantitatively transports the liquid medicine inside the chemical addition tank to the mixing tube to neutralize the pH value of the makeup water, so that the pH value of the boiler feed water reaches the set range, realizing the function of automatic chemical addition and pH value neutralization of the device, ensuring the quality of the boiler feed water, and prolonging the service life of the boiler.

[0012] 2. By energizing and operating the submersible pump to pump the brine inside the salt tank to the brine inlet pipe, the brine inlet pipe transports the brine to the inside of the pressure tank through the liquid inlet tank. Using the brine, the mineral impurities adsorbed by the resin filler can be regenerated and restored, achieving the purpose of regenerating the resin filler, realizing the recycling of the resin filler, and ensuring the adsorption quality of the resin filler. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional view of the present utility model;

[0014] Figure 2 is a schematic cross-sectional structure view of the present utility model;

[0015] Figure 3 is a schematic partial structure view of the pressure tank of the present utility model;

[0016] Figure 4 is a schematic partial structure view of the automatic chemical addition device of the present utility model;

[0017] Figure 5 This is a partial structural schematic diagram of the cleaning mechanism of the present utility model.

[0018] In the figure: 1. Salt box; 101. Controller; 102. Liquid level gauge; 2. Liquid inlet box; 201. Water pump; 202. Soft water outlet pipe; 203. Water distributor; 204. Brine inlet pipe; 205. Submersible pump; 3. Automatic chemical feeder; 301. Check valve; 302. Detection pipe; 303. pH detector; 304. Chemical mixing pipe; 305. Dosing pump; 306. Chemical dosing tank; 4. Pressure tank; 401. Resin filler; 402. Drain valve; 5. Cleaning mechanism; 501. Bevel gear ring; 502. Cleaning scraper; 503. Bevel gear; 504. Driving motor. Specific embodiments

[0019] The technical solutions of the present utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0020] As Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 shown, a boiler feed water treatment device proposed by the present utility model includes a salt box 1, a pressure tank 4, and a cleaning mechanism 5. A pressure tank 4 is fixedly installed inside the salt box 1. A cleaning mechanism 5 is rotatably installed at the top of the bottom of the pressure tank 4. The cleaning mechanism 5 includes a bevel gear ring 501, a cleaning scraper 502, a bevel gear 503, and a driving motor 504. An automatic chemical feeder 3 is fixedly installed at the top of the salt box 1, and the automatic chemical feeder 3 includes a check valve 301, a detection pipe 302, a pH detector 303, a chemical mixing pipe 304, a dosing pump 305, and a chemical dosing tank 306. A liquid inlet box 2 is fixedly installed at the top of the salt box 1. A brine inlet pipe 204 extending into the salt box 1 is fixedly installed on one side of the liquid inlet box 2. A submersible pump 205 is fixedly installed at the bottom end of the brine inlet pipe 204.

[0021] It should be noted that: the submersible pump 205 is energized to operate to pump the brine inside the salt box 1 to the brine inlet pipe 204. The brine inlet pipe 204 transports the brine to the inside of the pressure tank 4 through the liquid inlet box 2. The mineral impurities adsorbed by the resin filler 401 can be regenerated and reduced by using the brine, achieving the purpose of regenerating the resin filler 401;

[0022] The pH of the discharged soft water is monitored by the pH detector 303. When the pH of the discharged soft water is not within the set range, the pH detector 303 transmits an electrical signal to the dosing pump 305. The dosing pump 305 quantitatively transports the liquid medicine inside the chemical dosing tank 306 to the chemical mixing pipe 304 to neutralize the pH of the make-up water, so that the pH of the boiler feed water reaches the set range, realizing the function of automatically adding medicine to neutralize the pH of the device.

[0023] Further, a controller 101 is fixedly installed on the top of the salt tank 1, and a liquid level gauge 102 is installed through one side of the salt tank 1.

[0024] It should be noted that: The controller 101 is electrically connected to the pH detector 303, the metering pump 305, the drive motor 504, the water pump 201, the submersible pump 205, and the sewage valve 402 through wires, which is convenient for the staff to control the operation of the device. And the liquid level gauge 102 can monitor the storage amount of the brine inside the salt tank 1, which is convenient for the staff to replenish the brine in time.

[0025] Further, a detection tube 302 is installed through one end of the one-way valve 301. A pH detector 303 is fixedly installed on the front of the detection tube 302. One end of the detection tube 302 is threadedly installed with a mixing tube 304. The top of the mixing tube 304 is installed with a metering pump 305 through a pipeline. The input end of the metering pump 305 is connected through a pipeline to the bottom of the chemical addition tank 306.

[0026] It should be noted that: The one-way valve 301 is connected through a pipeline to the output end of the water pump 201. The detection end of the pH detector 303 extends into the detection tube 302 to detect the pH of the softened water output inside the detection tube 302. The mixing tube 304 is used to add pH neutralizing agents to adjust the pH of the output softened water.

[0027] Further, a water pump 201 is fixedly installed on the top of the liquid inlet tank 2. A softened water outlet pipe 202 extending into the pressure tank 4 is fixedly installed inside the liquid inlet tank 2. A water distributor 203 is fixedly installed at the bottom end of the softened water outlet pipe 202.

[0028] It should be noted that: The top end of the softened water outlet pipe 202 is connected to the input end of the water pump 201, and the output end of the water pump 201 is connected through a pipeline to the one-way valve 301.

[0029] Further, the bevel gear ring 501 is rotatably installed inside the pressure tank 4 through a track groove. Cleaning scrapers 502 are fixedly installed on both sides of the bottom of the bevel gear ring 501. And one side of the cleaning scraper 502 is in contact with the inner wall of the pressure tank 4. A drive motor 504 is fixedly installed on one side of the pressure tank 4. A bevel gear 503 is fixedly installed at the output end of the drive motor 504. And the bevel gear 503 is meshed with the bottom of the bevel gear ring 501.

[0030] It should be noted that: When the drive motor 504 is energized and operates, it drives the bevel gear 503 to rotate. The rotating bevel gear 503 drives the engaged bevel gear ring 501 to rotate. The rotating bevel gear ring 501 drives the cleaning scraper 502 to rotate. The rotating cleaning scraper 502 can scrape the inner wall of the pressure tank 4 to clean the impurities deposited on the inner wall of the pressure tank 4, achieving the function of automatically cleaning the inner wall of the pressure tank 4.

[0031] Further, the interior of the pressure tank 4 is filled with a resin filler 401, and a sewage discharge valve 402 extending out of the bottom of the salt tank 1 is fixedly installed on the pressure tank 4.

[0032] It should be noted that: the resin filler 401 can adsorb mineral impurities in the water source to achieve the effect of softening the water source, and the sewage generated by regenerating the resin filler 401 is discharged from the device through the sewage discharge valve 402.

[0033] The working principle is as follows: The water source is connected through the water inlet on one side of the liquid inlet tank 2, and the water source enters the interior of the pressure tank 4 through the liquid inlet tank 2. The resin filler 401 inside the pressure tank 4 can adsorb mineral impurities in the water source to achieve the effect of softening the water source. For the softened water source, the suction pump 201 is energized to generate suction, and the suction is conveyed to the interior of the water distributor 203 through the softened water outlet pipe 202. The water distributor 203 extracts the softened water source inside the pressure tank 4 and conveys it through a pipeline to the one-way valve 301, and the one-way valve 301 conveys the softened water to the detection pipe 302;

[0034] Then, the pH detector 303 detects the pH value of the softened water output inside the detection pipe 302 and transmits the detected electrical signal to the controller 101 for calculation. When the controller 101 calculates that the detection data of the pH detector 303 is not within the set value range, the pH detector 303 transmits an electrical signal to the metering pump 305, and the metering pump 305 quantitatively conveys the liquid medicine inside the medicine adding tank 306 to the mixing pipe 304 to neutralize the pH value of the make-up water so that the pH value of the boiler feed water reaches the set range;

[0035] When regenerating the resin filler 401, the submersible pump 205 is energized to pump the brine inside the salt tank 1 to the brine inlet pipe 204, and the brine inlet pipe 204 conveys the brine to the interior of the pressure tank 4 through the liquid inlet tank 2. The brine can regenerate and restore the mineral impurities adsorbed by the resin filler 401 to achieve the purpose of regenerating the resin filler 401.

[0036] The above specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant revelations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A boiler feed water treatment device, comprising a salt box (1), a pressure tank (4), and a cleaning mechanism (5), characterized in that: A pressure tank (4) is fixedly installed inside the salt box (1); a cleaning mechanism (5) is rotatably installed on the top of the bottom of the pressure tank (4); the cleaning mechanism (5) comprises a bevel gear ring (501), a cleaning scraper (502), a bevel gear (503), and a driving motor (504); an automatic doser (3) is fixedly installed on the top of the salt box (1); the automatic doser (3) comprises a one-way valve (301), a detection tube (302), a pH detector (303), a mixing tube (304), a metering pump (305), and a dosing tank (306); a liquid inlet box (2) is fixedly installed on the top of the salt box (1); a salt water inlet pipe (204) extending into the interior of the salt box (1) is fixedly installed on one side of the liquid inlet box (2); and a submersible pump (205) is fixedly installed on the bottom end of the salt water inlet pipe (204).

2. A boiler feed water treatment device according to claim 1, characterized in that: A controller (101) is fixedly installed on the top of the salt box (1), and a liquid level meter (102) is installed through one side of the salt box (1).

3. A boiler feed water treatment device according to claim 1, characterized in that: A detection tube (302) is installed through one end of the one-way valve (301), a pH detector (303) is fixedly installed on the front of the detection tube (302), a drug mixing tube (304) is threadedly installed on one end of the detection tube (302), a metering pump (305) is installed on the top of the drug mixing tube (304) through a pipeline, and an input end of the metering pump (305) is connected to the bottom of the dosing tank (306) through a pipeline.

4. A boiler feed water treatment device according to claim 1, characterized in that: A water pump (201) is fixedly installed on the top of the liquid inlet box (2), a soft water outlet pipe (202) extending to the inside of the pressure tank (4) is fixedly installed inside the liquid inlet box (2), and a water distributor (203) is fixedly installed at the bottom end of the soft water outlet pipe (202).

5. A boiler feed water treatment device according to claim 1, characterized in that: The bevel gear ring (501) is rotatably mounted inside the pressure tank (4) via a track groove; cleaning scrapers (502) are fixedly mounted on both sides of the bottom of the bevel gear ring (501); one side of the cleaning scraper (502) is in contact with the inner wall of the pressure tank (4); a driving motor (504) is fixedly mounted on one side of the pressure tank (4); a bevel gear (503) is fixedly mounted on the output end of the driving motor (504); and the bevel gear (503) is meshingly connected with the bottom of the bevel gear ring (501).

6. A boiler feed water treatment device according to claim 1, characterized in that: The interior of the pressure tank (4) is filled with a resin filler (401), and the pressure tank (4) is fixedly installed with a drain valve (402) extending out of the bottom of the salt box (1).

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