CN201314615Y

CN201314615Y - Range hood capable of absorbing and utilizing afterheat of smoke and gas

Info

Publication number: CN201314615Y
Application number: CNU2008201810472U
Authority: CN
Inventors: 李业新
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-12-12
Filing date: 2008-12-12
Publication date: 2009-09-23
Anticipated expiration: 2018-12-12

Abstract

The utility model relates to a range hood capable of absorbing and utilizing afterheat of smoke and gas, which comprises a shell (2), a fan (3), a plate heat exchanger (6), a plate pin tube heat exchanger (12), an upper air inlet filter plate (4), an lower air inlet (9), lower air inlet air deflectors (8, 10), a hot water storage tank (21), circulating pipelines (15, 16), etc. The utility model adopts a side absorption structure; an air suction port and a lower suction port are arranged on the front surface of the shell; the plate pin tube heat exchanger is arranged in the lower suction port; the plate heat exchanger is arranged between the upper suction port and the lower suction port; the filter plate is arranged on the upper air suction port; the small hot water storage tank is arranged above the shell. As the upper air suction port and the lower air suction port are arranged, and the heat exchangers are mounted, not only the performances for sucking and draining soot are improved, but also the afterheat of smoke and gas is absorbed and utilized to heat water during the smoke drainage process, thus providing convenient hot water and saving family power consumption for families.

Description

A kind of range hood that can absorb fume afterheat

Affiliated technical field

The utility model belongs to a kind of family expenses range hood.

Background technology

At present, the gas-cooker that China family uses generally adopts the atmospheric burner that opens wide.In order to guarantee safe GB16410-2007 national Specification, CO content is less than 0.05%, because CO content in smoke is very little, so burning is that sufficient imperfect combustion loss is almost nil in the dry flue gas.The product that is up to state standards can think that efficiency of combustion is near 100%.It is not high that yet serviceability is the thermal efficiency, and national standard is only required and is not less than 55%.In fact generally use the thermal efficiency to have only about 50%, the combustion conditions that reason is to use performance to be not only gas-cooker determines, also relevant with cooking appliance and use habit method, because the heating surface area of cooking appliance pot and kettle is relative less, heat is not fully used just to be diffused in the air and has been gone in the combustion heat flue gas, heat-energy losses is very big, so the thermal efficiency is low.In order to adapt to the requirement that China people cook custom, the gas-cooker rated heat input, rated heat load is bigger, national new standard regulation plain edition kitchen range thermic load 〉=3.5kw.Product thermic load in recent years generally increases, and the thermic load of domestic gas gas kitchen is all bigger in the market, has much surpassed 4kw.But pot in the apparatus and kettle are for these years less than what big change, and majority still is flat, and heating surface area is less relatively.Because the thermal efficiency is low, the big more heat loss of gas-cooker thermic load is also big more, and therefore very big saving potentiality are arranged.In order to reduce heat loss, mainly should manage to absorb at present the heat in the flue gas.Because improving constantly of living standard, demand to hot water is increasing, the energy consumption of home-use hot water has surpassed 25% of family expenses energy consumption, a lot of families are also heating up water with kettle or pot, efficient only has about 50%, also have a lot of families to use electric heater, consume high-grade electric energy, therefore utilize waste heat gas to add the method that hot water is the home-use energy of the most suitable effective saving.But existing range hood can only can not absorb fume afterheat by fume exhaust.

Summary of the invention

The purpose of this utility model is exactly in order to save home-use energy, and a kind of range hood that waste heat in the flue gas adds hot water that can absorb in the fume exhaust process is provided.

In order to achieve the above object, the scheme that the utility model adopts is: the function of expansion range hood, adopt the side-suction type structure, two air entries up and down are set in the housing front, installation sleeve finned pipe type heat exchanger in following air entry, between the air entry plate type heat exchanger is being installed up and down, small-sized heat storage water tank is being installed above housing.Absorb in the smoke evacuation process that fume afterheat adds hot water and insulation is stored in the water tank for use.

Owing to two air entries are set in the housing front up and down and heat exchanger have been installed, both improved the performance of fume exhaust, can in the fume exhaust process, absorb the waste heat in the flue gas again.Not only can use the hot water washing easily owing to utilize waste heat gas to add hot water, can also be used for culinary art and save combustion gas and time.

Description of drawings

Fig. 1 is a side sectional view of the present utility model.

Fig. 2 is a front view of the present utility model.

Fig. 3 is the front view of filter 4 shown in Figure 1.

Fig. 4 is the A-A cutaway view of Fig. 3.

Fig. 5 is plate type heat exchanger 6 front views shown in Figure 1.

Fig. 6 is the B-B cutaway view of Fig. 5.

Fig. 7 is nest plate pipe heat exchanger 12 front views shown in Figure 1.

Fig. 8 is that Fig. 7 C is to view.

Fig. 9 is the D-D cutaway view of Fig. 7.

1. exhaust ports among the figure, 2. housing, 3. blower fan, 4. go up the air inlet filter, 5. Tube Sheet of Heat Exchanger joint, 6. plate type heat exchanger, 7. Tube Sheet of Heat Exchanger joint, 8. descend the air inlet deflector, 9. descend air inlet, 10. descend the air inlet deflector, 11. Tube Sheet of Heat Exchanger joints, 12. nest plate pipe heat exchanger, 13. the Tube Sheet of Heat Exchanger joint, 14. interior deflectors, 15. times circulation pipes, 16. upper circular tube, 17. circulation pipe joint under the water tank, 18. water tank upper circular tube joints, 19. water tanks advance the cold water pipe joint, 20. water tank hot-water outlet pipe joint, 21. heat storage water tanks.

The specific embodiment

As shown in Figure 1 and Figure 2, the utility model mainly is made up of housing (2), blower fan (3), plate type heat exchanger (6), nest plate pipe heat exchanger (12), last air inlet filter (4), following air inlet (9), following air inlet deflector (8,10), interior deflector (14), heat storage water tank (21), circulation line (15,16) etc.

Blower fan and automatically controlled device are installed in the housing internal upper part, last air inlet is installed cooking fume filtering plate (4), between the air inlet plate type heat exchanger (6) is being installed up and down, installation sleeve finned pipe type heat exchanger (12) in following air inlet (9), the deflector (8,10) that installation and housing flexibly connect outside following air inlet (9).The effect of deflector (8,10) is to stop flue gas to spread in air and stop air to sneak into flue gas, makes the smooth and easy heat exchanger that enters of flue gas.Because air entry (9) is nearer apart from gas-cooker down, rise at flue gas and leave pot, be inhaled into heat exchanger (12) in the time of will in air, spreading, and can not influence the normal service efficiency of gas-cooker.

In order to reduce circulation resistance, heat exchanger is connected with water tank with circulation pipe respectively.Plate type heat exchanger pipe joint (5) is connected with water tank upper circular tube joint (18).Plate type heat exchanger pipe joint (7) is connected with circulation pipe joint (17) under the water tank, and nest plate pipe heat exchanger pipe joint (13) is connected with water tank upper circular tube joint (18), and nest plate pipe heat exchanger pipe joint (11) is connected with circulation pipe joint (17) under the water tank.

When combustion gas is used in culinary art, the high-temperature flue gas that burning produces earlier under range hood air inlet (9) suck nest plate heat exchange of heat pipe (12), oil smoke that flue gas continues to rise and culinary art produces and steam flow through heat exchanger (6) together from inside and outside two sides because the attached wall effect flue gas of interior deflector (14) and air-flow can be close to heat exchanger surface flows through.When flue gas is flowed through heat exchanger heat passed to the water in the heat exchanger, through exhaust port (1), be discharged to outdoor through the flue gas of separating and filtering.Water generates density contrast in water heat absorption back temperature rising density decline and the storage tank forms the Natural Circulation heat convection in the heat exchanger, gradually water heating and insulation in the water tank is stored for use.

Heat storage water tank adopts sealing pressure-bearing type structure identical with electric heater, hot-water outlet pipe's joint (20) is connected with the water pipeline, advance cold water pipe joint (19) and be connected with tap water pipe line, open the hot water nozzle during use and can flow out hot water, cold water replenishes inlet water tank automatically by tap water pressure.

Claims

1. range hood that can absorb fume afterheat, form by housing (2), blower fan (3), exhaust port (1), air entry filter (4), it is characterized in that: there are two air entries up and down the housing front, in the air entry (9) nest plate pipe heat exchanger (12) is being housed down, between the air entry plate type heat exchanger (6) being housed up and down, heat storage water tank (21) is housed above housing.

2. the described range hood of claim 1 is characterized in that air entry (9) is provided with the deflector (8,10) that flexibly connects with housing down.