CN201852484U - Spray type condensation waste heat recovery device - Google Patents

Abstract

The utility model discloses a spraying condensation type waste heat recovery device, which comprises a square shell with a bracket. The shell is provided with a flue gas inlet and a flue gas outlet, and the lower part of the shell is connected with a water outlet pipe; a separator is arranged below the flue gas outlet and in the shell, a spraying tube is arranged below the separator, and a plurality of water spraying plates are arranged below the spraying tube; and the water spraying plates are arranged vertically, are horizontally placed in the shell and are fixedly connected with the inner wall of the shell. The utility model has the advantages that the convection type heat exchange is realized, the contact area between flue gas and condensate is greatly increased due to the water spraying plates, and thus the heat of the flue gas can be fully utilized; due to a water level gauge tube and an access door, the observation of the working staff can be facilitated; and water stored at the bottom of the shell can be completely discharged through a drainage valve and a drainage pipe, and thus the working staff can clean, inspect or maintain the equipment more easily.

Description

Spray type condensation waste heat recovery device

technical field

The utility model belongs to the field of heat recovery equipment, in particular to a spray type condensation waste heat recovery device.

Background technique

At present, the exhaust gas temperature of industrial boilers is about 180-250 ° C. The loss of this part has always been the main reason affecting the efficiency of the boiler. The discharge of high-temperature flue gas not only causes a lot of waste of heat energy, but also has a great impact on environmental pollution. . Therefore, the effective use of this part of heat energy is of great significance to energy conservation and environmental protection.

Contents of the invention

The purpose of this utility model is to provide a spray type condensation waste heat recovery device in view of the above situation.

For this reason, the technical solution adopted by the utility model is: a spray type condensation waste heat recovery device, including a square shell with a bracket, a smoke inlet and a smoke outlet are opened on the shell, and the lower part of the shell is connected to the water outlet pipe; It is characterized in that: a separator is provided in the casing below the smoke outlet, a spray pipe is provided below the separator, and several water spray boards are provided below the spray pipe; the several water spray boards are arranged vertically, It is placed horizontally in the shell and connected and fixed with the inner wall of the shell.

A water overflow device is provided at the inner lower part of the housing, and the water overflow device is connected with the overflow pipe at the bottom end of the housing.

The bottom end of the housing is connected with a drain pipe, and a drain valve matched with the drain pipe is provided.

The lower part of the housing is connected with the water supply pipe, and a ball float valve is arranged in the housing at a position corresponding to the water supply pipe.

The casing is also provided with an inspection door and a water level gauge tube.

The working principle of the utility model is as follows: the flue gas enters the shell through the smoke inlet, and rises along the channel in the shell; the spray pipe sprays condensed water downward, and forms convection with the rising flue gas, thereby realizing convective heat exchange The purpose; when the condensed water and the flue gas are convected and the heat exchange is completed, it will be stored in the bottom of the shell, and then sent to the heat-using equipment through the outlet pipe; The lower part of the pipe, after exchanging heat with condensed water, will continue to rise and bypass the spray pipe, and the water and gas will be separated through the separator; the separated water will flow down to the bottom of the shell, and the separated flue gas will Continue to rise and be discharged from the smoke outlet.

The utility model has the advantages of realizing convective heat exchange, and by placing several water-drenching plates horizontally in the casing, the contact area between the flue gas and condensed water can be greatly increased, so that the heat of the flue gas can be fully utilized ;At the same time, the water level can be checked through the water level gauge tube, the equipment can be checked through the inspection door, and the water level at the bottom of the shell can be maintained by using the overflow device and the float valve to improve the safety of the system; when cleaning, inspection or maintenance of equipment is required , The water at the bottom of the shell can be drained through the drain valve and the drain pipe, which is more convenient for the staff to clean, inspect or maintain the equipment.

Description of drawings

Fig. 1 is a front view of the utility model.

Fig. 2 is a side view of the utility model.

Detailed ways:

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail

See attached picture. This embodiment includes a housing 9 with a bracket 2, the housing 9 is provided with a smoke inlet 4 and a smoke outlet 7; the lower part of the housing 9 is connected to the water outlet pipe 11, and the housing 9 below the smoke outlet 7 A separator 6 is arranged inside, and a spray pipe 8 is arranged below the separator 6, and a plurality of water spray boards 5 are arranged below the spray pipe 8; The inner walls of the housing 9 are connected and fixed; the water shower plate 5 is composed of a plurality of obliquely arranged steel plates.

A water overflow device 3 is provided at the inner lower part of the housing 9, and the water overflow device 3 is connected to the overflow pipe 1 at the bottom end of the housing 9.

The bottom end of the housing 9 is connected to the drain pipe 12 and is provided with a drain valve matched with the drain pipe 12 .

The lower part of the housing 9 is also connected to the water supply pipe 14 , and a ball float valve is provided at a position corresponding to the water supply pipe 14 in the housing 9 .

The housing is also provided with upper and lower inspection doors 15, 10 and high and low water level gauge tubes 13, 16.

The working principle of this embodiment is as follows: the flue gas enters the casing 9 through the smoke inlet 4, and rises along the passage in the casing 9; the spray pipe 8 sprays condensed water downward, and forms convection with the rising flue gas , so as to achieve the purpose of convective heat exchange; when the condensed water and the flue gas are convected and the heat exchange is completed, it will be stored in the bottom of the shell 9, and then sent to the heat-using equipment through the outlet pipe 11; and the flue gas will pass through The bottom of the three water spray plates 5 and the spray pipe 8, after exchanging heat with the condensed water, will continue to rise and bypass the spray pipe 8, and the water and gas will be separated by the separator 6; the separated water will flow downward At the bottom of the housing 9, the separated smoke continues to rise and is discharged from the smoke outlet 7.

Claims (5)

1. fountain condensation waste-heat recovery device comprises the square casing that has support, has into mouth and outlet flue on the housing, and lower housing portion links to each other with outlet pipe; It is characterized in that: be provided with separator in the housing of described outlet flue below, the separator below is provided with shower, and the shower below is provided with some drip water plates; Described some drip water plates are vertical arrangement, are placed horizontally in the housing, and are connected to a fixed with the inwall of housing.

2. fountain condensation waste-heat recovery device as claimed in claim 1 is characterized in that: the bottom is provided with the spilling water device in the described housing, and this spilling water device links to each other with the overflow pipe of housing bottom.

3. fountain condensation waste-heat recovery device as claimed in claim 1 is characterized in that: described housing bottom links to each other with drain pipe, and is provided with the drain valve that matches with drain pipe.

4. fountain condensation waste-heat recovery device as claimed in claim 1, it is characterized in that: described lower housing portion links to each other with filling pipe, is provided with ball-cock assembly with the corresponding position of filling pipe in the housing.

5. fountain condensation waste-heat recovery device as claimed in claim 1 is characterized in that: also be provided with inspection door and water level meter pipe on the described housing.

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