Novel flue gas condensate water sampling device

Abstract

The novel flue gas condensate water sampling device is composed of the sampling box body structure, the heat preservation layer and the flue gas condensation structure, flue gas is led out to be condensed, then condensate water is collected to be subjected to water quality inspection, the condensation branch pipes are designed to disperse the flue gas, and the condensation branch pipes are arranged in the sampling box body structure. The contact area of flue gas and ice blocks is increased, the condensation efficiency is improved, the sampling device does not influence normal operation of a flue gas pipeline system, condensate water can be collected, a water sample is provided for subsequent condensate water detection, and a basis is provided for scientific and reasonable utilization of the condensate water.

Description

Technical Field

[0001] The utility model relates to the field of flue gas condensate sampling, in particular to a novel flue gas condensate sampling device. Background Art

[0002] The exhaust temperature of the flue gas at the tail of the boiler in a gas-fired power plant is about 75°C. To recycle this part of the flue gas waste heat and reduce the flue gas temperature to 30°C, energy saving and carbon reduction will be achieved. In the process of cooling the flue gas, condensed water will be generated, and the generated flue gas condensed water can also be used as a water source for heating network, circulating water, boiler feed water, etc. In order to achieve the rational use of condensed water, it is necessary to first understand the water quality of the condensed water, and to test its pH value, total nitrogen, ammonia nitrogen, total phosphorus, COD, alkalinity, hardness and other sample indicators to demonstrate the treatment process and recycling direction of flue gas condensed water, so as to achieve the purpose of accurate and rational use of condensed water resources and achieve the goal of energy saving and carbon reduction.

[0003] In the current power generation process of gas-fired power plants, condensate is directly generated during the heat recovery process of the high-temperature flue gas discharged from the tail of the boiler after power generation. Before the condensate is further utilized, there is a lack of sampling and testing of the condensate quality, and the chemical composition of the condensate cannot be mastered. The subsequent condensate utilization lacks specificity, and its usage scenarios and forms cannot be reasonably planned, which can easily affect the use of the condensate due to water quality problems, and even cause damage to other equipment. Utility Model Content

[0004] In view of the above existing technical problems, the utility model provides a novel flue gas condensate sampling device, which is characterized by comprising a sampling box structure, a thermal insulation layer, and a flue gas condensation structure. The flue gas condensation structure is installed inside the sampling box structure, and the thermal insulation layer is installed outside the sampling box.

[0005] The sampling box structure is composed of an upper cover, a handle, a box, a drain pipe, and a drain switch. The upper cover is installed on the box, the handle is installed on the surface of the upper cover, the drain pipe is installed under the box, and the drain switch is installed at the tail of the drain pipe.

[0006] The flue gas condensation structure is composed of a flue gas inlet pipe, a condensate sampling pipe, a flue gas outlet pipe, a condensate main pipe A, a condensate main pipe B, and a condensate branch pipe. The flue gas inlet pipe is installed at the upper opening of the box side, the condensate sampling pipe is installed at the lower opening of the box side, the condensate main pipe A is installed inside the box, the condensate straight pipe is installed on the condensate main pipe A, and the four condensate branches are arranged in parallel. The condensate main pipe B is installed below the condensate straight pipe. The condensate sampling pipe is installed on one side of the condensate main pipe B, and the flue gas outlet pipe is installed on the other side.

[0007] Specifically, four condensation branch pipes are provided and arranged in parallel.

[0008] Beneficial effects of the utility model:

[0009] The utility model designs a condensate sampling device for steam in a power plant, which draws out the flue gas for condensation and then collects the condensate for water quality inspection. The condensation branch pipe is designed to disperse the flue gas, increase the contact area between the flue gas and ice cubes, and improve the condensation efficiency. The sampling device does not affect the normal operation of the flue gas piping system, and can also collect the condensate to provide water samples for subsequent condensate detection, thereby providing a basis for the scientific and rational use of condensate. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the overall structure of a novel flue gas condensate sampling device of the utility model;

[0011] Figure 2 This is a schematic diagram of the overall structure of a novel flue gas condensate sampling device of the utility model;

[0012] Figure 3 This is a schematic diagram of the overall structure of a novel flue gas condensate sampling device of the utility model;

[0013] Figure 4 This is a partial structural schematic diagram of a novel flue gas condensate sampling device of the utility model;

[0014] As shown in the figure: 1. Upper cover, 2. Insulation layer, 3. Handle, 4. Flue gas inlet pipe, 5. Condensate sampling tube, 6. Flue gas outlet pipe, 7. Box body, 8. Condensation main pipe A, 9. Condensation main pipe B, 10. Condensation branch pipe, 11. Drain pipe, 12. Drain switch. DETAILED DESCRIPTION

[0015] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0018] Example 1

[0019] like Figure 1 , Figure 2 , Figure 3 As shown, an upper cover 1 is installed on the top of the box body 7, a handle 3 is installed on the upper surface of the upper cover 1, an insulation layer 2 is covered on the outside of the box body 7, a smoke inlet pipe 4 is installed on the top of one side of the box body 7, a condensate sampling tube 5 is installed on the bottom of one side of the box body 7, a smoke outlet pipe 6 is installed on the bottom of the other side of the box body 7, a drain pipe 11 is installed on the side of the smoke outlet pipe 6, a drain switch 12 is installed at the tail of the drain pipe 11, a condensate main pipe A8 is installed inside the box body 7, one end of the condensate main pipe A8 is connected to the smoke inlet pipe 4, a condensate branch pipe 10 is installed below the condensate branch pipe 10, a condensate main pipe B9 is installed below the condensate branch pipe 10, one end of the condensate main pipe B9 is connected to the condensate sampling tube 5, and the other end of the condensate main pipe B9 is connected to the smoke outlet pipe 6.

[0020] Example 2

[0021] When using the utility model, large blocks of ice are placed in the box body 7, the upper cover 1 is closed, the flue gas intake pipe 1 is connected to the exhaust pipe at the tail end of the power plant boiler, and the flue gas enters the condensation main pipe 8A and the condensation branch pipe 10 through the flue gas intake pipe 4. In the condensation branch pipe 10, large blocks of ice are placed above the condensation straight pipe 10 to cool the flue gas in the condensation branch pipe 10, and the condensed water is sampled through the condensation water sampling tube 5. The remaining uncondensed flue gas is discharged through the flue gas exhaust pipe 6, and the flue gas exhaust pipe 6 is connected to the pipe of the power generation boiler exhaust system. The flue gas enters the exhaust pipe. After condensation is completed, the drain switch 12 is opened, and the melted water after the ice cubes melt is discharged through the drain pipe 11.

[0022] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A new type of flue gas condensate sampling device, characterized in that It is composed of a sampling box structure, an insulation layer, and a flue gas condensation structure. The flue gas condensation structure is installed inside the sampling box structure, and the insulation layer is installed outside the sampling box. The flue gas condensation structure is composed of a flue gas inlet pipe, a condensate sampling pipe, a flue gas outlet pipe, a condensation main pipe A, a condensation main pipe B, and a condensation branch pipe. The flue gas inlet pipe is connected to one end of the condensation main pipe A, a condensation branch pipe is installed below the condensation main pipe A, and a condensation main pipe B is installed below the condensation branch pipe. A condensate sampling pipe is installed at one end of the condensation main pipe B, and the other end of the condensate sampling pipe is connected to the flue gas outlet pipe.

2. A novel flue gas condensate sampling device according to claim 1, characterized in that The sampling box structure consists of an upper cover, a handle, a box body, a drain pipe, and a drain switch. The upper cover is installed on the top of the box body, a smoke inlet pipe is installed on the top of the side of the box body, a handle is installed on the surface of the upper cover, a drain pipe is installed on the bottom of the box body, and a drain switch is installed at the tail of the drain pipe.

3. A novel flue gas condensate sampling device according to claim 1, characterized in that There are four condensation branches in total, which are arranged in parallel.

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