Condensate water centralized recovery treatment system

Abstract

The utility model discloses a concentrated recovery and treatment system for condensate water, which belongs to the technical field of condensate water treatment, aims at solving the problems that the effect is poor and the operation is not convenient and fast when the condensate water is recovered, and comprises an acid pump, one end of one communicating pipe is connected with a water inlet pipeline for feeding condensate water; due to the arrangement of the automatic control system, the automatic control device is used for controlling the PH sensor in the condensate water collecting tank and the dosing titration device, acid-base neutralization treatment is carried out on condensate water under the cooperation of the dosing titration device, and meanwhile, the treatment system adopts a closed recovery system, so that environmental pollution caused by acid-base generation is reduced; on the other hand, the condensate water is not in direct contact with the atmosphere, the concentration of dissolved oxygen in the condensate water is low, equipment corrosion is not prone to being generated, the service life of the equipment is prolonged, the recycling system is highly integrated and automatic, and the labor cost of water treatment specialized workers is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of condensed water treatment, and in particular relates to a centralized condensed water recovery and treatment system. Background Art

[0002] Condensate: refers to the liquid water formed by the condensation process of water vapor (i.e. gaseous water), which is condensed water. Condensate flows out from the water collection tray under the indoor unit evaporator. Its flow rate is generally related to the humidity content of the air, dew point temperature, room temperature, etc. It can be calculated by finding a wet air enthalpy and humidity diagram. Condensate recovery refers to the recovery and reuse of the heat and water content of steam condensate. Its benefits can be summarized as follows:

[0003] (1) Save industrial water. Condensate can generally be used directly as boiler feed water, which can significantly reduce industrial water consumption. The treated water can still be effectively used.

[0004] (2) Save boiler feed water treatment costs. Since condensed water can be used directly as boiler feed water, the softening treatment costs of this water can be saved.

[0005] (3) Reducing fuel combustion can reduce air pollution, and recovering heat can reduce boiler fuel consumption, thereby reducing smoke and sulfur dioxide emissions. At the same time, it eliminates the heat generated by condensate discharge and improves the working environment.

[0006] In the prior art, when treating flue gas condensate, boiler steam is often used as a heat source, and heat is emitted through a radiator to dry the product. The flue gas condensate generated during the heat exchange process is discharged from the drain, and the condensate is sent to a water collection station through an underground pipeline, and then the condensate is sent to the boiler for recycling by an electric pump. Since the pipeline has been mixed underground for a long time, it is severely corroded, causing the pipeline to be damaged and leaking, which directly affects the quality of the condensate, thereby polluting the environment and corroding the equipment.

[0007] Therefore, a centralized condensate water recovery and treatment system is needed to solve the problems in the prior art of poor condensate water recovery and inconvenient operation. Utility Model Content

[0008] The purpose of the utility model is to provide a centralized condensate water recovery and treatment system to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a centralized condensate recovery and treatment system, comprising an acid pump, wherein two connecting pipes are arranged at one end of the acid pump, wherein one end of one of the connecting pipes is connected to a water inlet pipe for intake of flue gas condensate, and the other end of the connecting pipe is connected to a water delivery pipe for conveying condensate, a condensate collecting tank is arranged on one side of the acid pump, a return water tank is provided inside the condensate collecting tank, a pH sensor and a dosing titration device are arranged inside the condensate collecting tank, the pH sensor is arranged before the dosing titration device, a connecting pipe is arranged inside the condensate collecting tank, and one end of the connecting pipe is connected to a collecting tank inlet valve for inputting condensate.

[0010] It should be noted in the solution that a water level float is provided inside the condensate collecting tank, and one end of the water level float is connected to a float water level detector.

[0011] It is further worth mentioning that the condensate collecting tank is internally provided with an automatic control device for controlling the collecting tank inlet valve and the dosing titration device, and for monitoring the pH value of the condensate in the return tank in real time.

[0012] It should be further explained that a pipeline is formed between the water inlet pipeline, the water delivery pipeline and the connecting pipeline, and the pipeline is under a constant positive pressure when in operation.

[0013] As a preferred embodiment, the solution output by the dosing titration device is an alkaline solution, which is subjected to acid-base neutralization treatment with the condensed water inside the condensed water collecting tank.

[0014] As a preferred embodiment, the condensate collecting tank (5) is used in a sealed state.

[0015] Compared with the prior art, the centralized condensate recovery and treatment system provided by the utility model has at least the following beneficial effects:

[0016] Through the setting of automatic control system, the PH sensor and the dosing titration device inside the condensate collecting tank are controlled by an automatic control device, so as to monitor the PH value of the water inside the tank in real time, so that the condensate is treated with acid and alkali neutralization in cooperation with the dosing titration device. At the same time, the treatment system adopts a closed recovery system to reduce the environmental pollution caused by acid and alkali. On the other hand, since the condensate is not in direct contact with the atmosphere, the dissolved oxygen concentration in the condensate is low, which is not easy to cause equipment corrosion, thereby improving the life of the equipment. In addition, the recovery system is highly integrated and automated, which reduces the employment cost of water treatment specialists. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall process structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the system step structure of the utility model.

[0019] In the figure: 1. Acid pump; 2. Water collecting tank inlet valve; 3. PH sensor; 4. Dosing titration device; 5. Condensate collecting tank. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution of the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments. Based on the described embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0022] The following examples are used to illustrate the present invention, but cannot be used to limit the scope of protection of the present invention. The conditions in the examples can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0023] See also Figure 1-2 The utility model provides a centralized condensate recovery and treatment system, including an acid pump 1. Two connecting pipes are arranged at one end of the acid pump 1, one end of one of the connecting pipes is connected to a water inlet pipe for inletting condensate, and the other end of the connecting pipe is connected to a water delivery pipe for conveying condensate. A condensate collecting tank 5 is arranged on one side of the acid pump 1, a return water tank is provided inside the condensate collecting tank 5, a pH sensor 3 and a dosing titration device 4 are arranged inside the condensate collecting tank 5, the pH sensor 3 is arranged before the dosing titration device 4, a connecting pipe is arranged inside the condensate collecting tank 5, and one end of the connecting pipe is connected to a collecting tank inlet valve 2 for inputting control of flue gas condensate.

[0024] Further as Figure 1 As shown, it is worth explaining in detail that a water level float is arranged inside the condensate collecting tank 5, and one end of the water level float is connected to a float water level detector. Through the setting of the water level float, the water level of the condensate inside the return tank is monitored during transportation, thereby controlling the switch of the collecting tank inlet valve 2.

[0025] Further as Figure 1As shown, it is worth explaining in detail that an automatic control device for controlling the water collecting tank inlet valve 2 and the dosing titration device 4 is arranged inside the condensate collecting tank 5, and the pH value of the condensate in the return tank is monitored in real time.

[0026] By the cooperation between the dosing titration device 3 and the pH sensor, the acid-base neutralization treatment of the condensed water is achieved, thereby realizing the recovery and treatment effect of the flue gas condensed water.

[0027] Further as Figure 1 As shown, it is worth explaining in detail that a pipeline is formed between the water inlet pipeline, the water delivery pipeline and the connecting pipeline, and the pipeline is under a constant positive pressure when it is in operation.

[0028] Further as Figure 1 As shown, it is worth to explain in detail that the solution outputted by the dosing titration device 4 is an alkaline solution, which is subjected to acid-base neutralization treatment with the flue gas condensate inside the condensate collecting tank 5 .

[0029] Further as Figure 1 As shown, it is worth mentioning that the condensate collecting tank 5 is used in a sealed state.

[0030] This scheme has the following working process: steam condensate is extracted and transported by the acid pump 1 under the action of the water inlet pipeline. When the steam flue gas condensate enters the condensate collecting tank 5 through the water pipe and the collecting tank inlet valve 2 under the action of the acid pump 1, the water level float inside the condensate collecting tank 5 reaches the threshold and issues an instruction. The automatic control system closes the collecting tank inlet valve 2, and then the pH sensor 3 measures the pH of the steam condensate in the return tank. Since the steam condensate return water is mostly acidic and does not meet the pH requirements of daily boiler feed water operation and sewage discharge, acid-base neutralization treatment is required. At this time, the automatic control system executes to open the dosing titration device 4, and drips the solution into the inside of the return tank to perform acid-base neutralization treatment with the condensate. After the dripping solution reacts, the pH sensor 3 will monitor the pH value of the condensate in the return tank in real time. After meeting the standard neutrality requirements, the treated return water in the condensate collecting tank 5 is released and diverted for use.

[0031] Unless otherwise defined, the technical or scientific terms used in the present invention shall have the usual meanings understood by persons with ordinary skills in the field to which the present invention belongs. The words "including" or "comprising" and the like used in the present invention mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. The words "connect" or "connected" and the like are not limited to physical or mechanical connections, but may also include electrical connections, whether direct or indirect. "Up", "down", "left", "right", etc. are only used to indicate relative position relationships. When the absolute position of the described object changes, the relative position relationship may also change accordingly.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A condensate centralized recovery and treatment system, comprising an acid pump (1), characterized in that: Two connecting pipes are provided at one end of the acid pump (1), one end of one of the connecting pipes is connected to a water inlet pipe for inletting condensed water, and the other end of the connecting pipe is connected to a water delivery pipe for delivering condensed water. A condensed water collecting tank (5) is provided at one side of the acid pump (1), a return water tank is provided inside the condensed water collecting tank (5), a pH sensor (3) and a dosing titration device (4) are provided inside the condensed water collecting tank (5), the pH sensor (3) is provided before the dosing titration device (4), a connecting pipe is provided inside the condensed water collecting tank (5), one end of the connecting pipe is connected to a collecting tank inlet valve (2) for inputting condensed water; a water level float is provided inside the condensed water collecting tank (5), and one end of the water level float is connected to a float water level detector.

2. A condensate centralized recovery and treatment system according to claim 1, characterized in that: An automatic control device for controlling the water collecting tank inlet valve (2) and the dosing titration device (4) is arranged inside the condensed water collecting tank (5).

3. A condensate centralized recovery and treatment system according to claim 2, characterized in that: A pipeline is formed between the water inlet pipeline, the water delivery pipeline and the connecting pipeline.

4. A condensed water centralized recovery and treatment system according to claim 3, characterized in that: The solution output by the dosing titration device (4) is an alkaline solution.

5. The centralized condensate recovery and treatment system according to claim 1 is characterized by: The condensate collecting tank (5) is used in a sealed state.

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