CN205245139U - Highly -effective steam generator - Google Patents

Abstract

The utility model discloses a high-efficiency steam generator, comprising a furnace cavity, the bottom of the furnace cavity communicates with a burner, the top of the furnace cavity is a smoke exhaust port, an evaporator is arranged above the nozzle of the burner, and the evaporator The inlet of the evaporator is connected with the water tank, the outlet of the evaporator is connected with a steam-water separator, there is an economizer under the exhaust port, the outlet of the economizer is connected with the water tank, and there is a condenser between the economizer and the evaporator. In the water recovery device, a set of spirally encircling water-cooled tubes are arranged on the wall of the furnace cavity between the burner and the evaporator. The inlet of the water-cooled tubes is connected with the water tank, and the outlet of the water-cooled tubes is connected with the evaporator. By setting up an economizer and a condensed water recovery device, the utilization rate of the flue gas is more efficient. At the same time, it prevents the temperature of the rising flue gas from being reduced due to the falling of the condensed water, and prevents the condensed water from splashing on the flame. It can be used in a smaller furnace volume. Under the premise, a sufficient amount of steam is produced.

Description

A high-efficiency steam generator

technical field

The utility model relates to a steam generator, in particular to a small-volume, high-flow high-efficiency steam generator which does not require compulsory manufacturing supervision inspection and installation supervision inspection.

Background technique

The existing steam generator usually includes a furnace body, a burner is arranged at the bottom of the furnace body, an evaporator is arranged in the middle of the furnace body, the inlet of the evaporator is connected to the water tank, and the burner emits high-temperature smoke after combustion The gas heats the evaporator, and the water flowing in the evaporator is heated to above 100 degrees to form steam. The steam passes through a steam-water separator and is discharged into the pipeline. The tail gas formed after heat exchange with the evaporator passes through the exhaust gas Mouth discharge. Most of the existing steam generators have a volume of more than 30 liters due to low heat exchange efficiency. According to the regulations of TSGG001-2010 "Boiler Safety Technical Supervision Regulations", mandatory manufacturing supervision inspection and installation are required. The use of supervisory inspection will cause additional costs to manufacturers and users, and the direct discharge of high-temperature exhaust gas not only wastes precious energy, but also causes air pollution.

Utility model content

In order to overcome the above defects, the utility model aims to provide a high-efficiency steam generator capable of generating more steam with a smaller volume.

In order to achieve the above purpose, the technical solution adopted by the utility model is: a high-efficiency steam generator, including a furnace chamber, the bottom of the furnace chamber communicates with a burner, and the top of the furnace chamber is a smoke exhaust port. An evaporator is provided above the nozzle of the burner, the inlet of the evaporator communicates with the water tank, the outlet of the evaporator communicates with a steam-water separator, and an economizer is provided below the smoke outlet. The outlet of the economizer communicates with the water tank, a condensed water recovery device is also provided between the economizer and the evaporator, and a set of spirally encircling water cooling devices are provided on the furnace cavity wall between the burner and the evaporator. The inlet of the water-cooling pipe is connected with the water tank, and the outlet of the water-cooling pipe is connected with the evaporator.

The economizer includes two groups of coils layered up and down, and the coils respectively adopt the positive coil and the reverse coil of the coil method of the coil type mosquito coils.

The condensed water recovery device includes a set of water receiving tanks placed in parallel and a group of parallel rotating retaining rings placed above the water receiving tanks. , the drain tube communicates with a drain port.

The high-efficiency steam generator of the utility model is adopted, and the utilization rate of the flue gas is made more efficient by setting an energy saver and a condensed water recovery device. On the flame, a sufficient amount of steam can be produced under the premise of a small furnace volume.

Description of drawings

Fig. 1 is a structural representation of the utility model;

Fig. 2 is the structural representation of the energy saver of the utility model;

Fig. 3 is a schematic structural view of the condensed water recovery device of the present invention.

In the figure: 1-furnace chamber, 2-burner, 3-evaporator, 4-steam separator, 5-exhaust port, 6-energy saver, 7-condensate recovery device, 8-coil, 9-connection Sink, 10-stall ring, 11-drainage pipe, 12-drainage port, 13-water tank, 14-water cooling pipe.

detailed description

As shown in Figure 1, the utility model discloses a high-efficiency steam generator, comprising a furnace chamber 1, the bottom of the furnace chamber 1 communicates with a burner 2, and the top of the furnace chamber 1 is a smoke exhaust port 5. An evaporator 3 is arranged above the nozzle of the burner 2, the inlet of the evaporator 3 communicates with the water tank 13, the outlet of the evaporator 3 communicates with a steam-water separator 4, and the burner 2 sprays The high-temperature flue gas drawn by the flame rises inwardly along the furnace cavity 1, and the high-temperature flue gas exchanges heat with the evaporator 3 and then is discharged from the exhaust port 5, and the cold water in the evaporator 3 is heated by the high-temperature flue gas to form The steam flows into the pipeline after being separated by the steam-water separator 4, and is finally transported to the user. In summary, the structure is basically the same as that of the existing common steam generator.

The innovation point of the high-efficiency steam generator described in the utility model is mainly that an economizer 6 is arranged below the exhaust port 5, and the outlet of the economizer 6 communicates with the water tank 13, as shown in Figure 2, the The economizer 6 includes two groups of coil tubes 8 layered up and down, and the coil tubes 8 respectively adopt the positive coil and reverse coil of the coil type mosquito coil method. In this way, before the exhaust gas with a certain temperature is discharged through the exhaust port 5, it first exchanges heat with the economizer 6, and the cold water in the coil 8 is heated up after sufficient heat exchange with the high-temperature exhaust gas, and then discharged into the water tank 13 , increase the temperature of cold water in the water tank 13, so that the warm water entering the evaporator 3 can be vaporized faster to generate steam, and improve the thermal efficiency of my steam generator. At the same time, the temperature of the exhaust gas discharged into the atmosphere is lower, and the contained Less harmful substances.

At the same time, another innovative point of the high-efficiency steam generator described in the present invention is that a condensed water recovery device 7 is also provided between the economizer 6 and the evaporator 3, and the A set of spirally encircling water-cooling tubes 14 is arranged on the wall of the furnace cavity 1 , the inlet of the water-cooling tubes 14 communicates with the water tank 13 , and the outlet of the water-cooling tubes 14 communicates with the evaporator 3 . Through the water-cooled pipe 14, the cold water in the water-cooled pipe 14 can be preheated by using the temperature of the flame ejected from the burner 2, and at the same time, the effect of heat insulation of the furnace cavity 1 wall is played; as shown in Figure 3, the condensed water The recovery device 7 includes a group of parallel water receiving tanks 9 and a group of parallel rotating retaining rings 10 placed above the water receiving tanks 9, the gap of the water receiving tanks 9 is located below the retaining rings 10, and the bottom of the water receiving tanks 9 is provided with There is a drain pipe 11 , and the drain pipe 11 communicates with a drain port 12 . In this way, the flue gas can rise through the gap between the two adjacent water receiving grooves 9 and the two adjacent retaining rings 10. At the same time, due to the obstruction of the water receiving grooves 9 and the retaining rings 10, the rising speed of the high temperature flue gas is slowed down. It can carry out sufficient heat exchange with the evaporator 3 for a longer period of time. At the same time, the condensed water above will drip down and will first drip onto the retaining ring 10, and then flow into the water receiving tank 9 along the two sides of the retaining ring 10. When the water receiving tank 9 When the water level is higher than the drain pipe 11, it will flow into the drain pipe 11 through the inlet at the top of the drain pipe 11, and finally be discharged from the drain port 12, thus avoiding insufficient combustion of gas caused by condensed water dripping onto the flame.

Claims (3)

1. A high-efficiency steam generator comprises a furnace chamber (1), the bottom of the furnace chamber (1) communicates with a burner (2), and the top of the furnace chamber (1) is a smoke outlet ( 5), an evaporator (3) is arranged above the nozzle of the burner (2), the inlet of the evaporator (3) communicates with the water tank (13), and the outlet of the evaporator (3) is connected to a The steam-water separator (4) is connected, and it is characterized in that an energy saver (6) is arranged below the smoke outlet (5), the outlet of the energy saver (6) is connected with the water tank (13), and the energy saver A condensed water recovery device (7) is also provided between the burner (6) and the evaporator (3), and a group of A water-cooling pipe (14) surrounded by a spiral, the inlet of the water-cooling pipe (14) communicates with the water tank (13), and the outlet of the water-cooling pipe (14) communicates with the evaporator (3). 2. The high-efficiency steam generator according to claim 1, characterized in that the economizer (6) comprises two sets of coils (8) layered up and down, and the coils (8) adopt the coils of coiled mosquito coils respectively. The market method is positive and negative. 3. The high-efficiency steam generator according to claim 1, characterized in that the condensed water recovery device (7) comprises a group of parallel water receiving tanks (9) and a group of parallel water receiving tanks (9) placed above the water receiving tanks (9) Rotating retaining ring (10), the gap of the water receiving tank (9) is located below the retaining ring (10), the bottom of the water receiving tank (9) is provided with a drain pipe (11), and the drain pipe (11) is connected to the A drain port (12) is connected.