CN208269236U - A kind of passive type smoke exhaust return air fresh air ventilating fan - Google Patents

Abstract

The utility model relates to a kind of passive type smoke exhaust return air fresh air ventilating fans, PTC heater is equipped in the corresponding position that the enclosure interior for being equipped with several air outlets is connect with ventilation duct, pneumatic switch controller is located in ventilation duct and is connect with PTC heater and control panel by conducting wire, the utility model structure is simple, it is at low cost, ordinary people demand can be met, every family can be installed with multiple rooms, simultaneously, give full play of smoke exhaust efficiency, and expand its effect, with easy for installation, renovated house can also be installed, each room independent control, the advantages that easy to maintain, the market space is very big.

Description

A kind of passive type smoke exhaust return air fresh air ventilating fan

Technical field

The present invention relates to a kind of household electrical appliance, specifically a kind of passive type smoke exhaust return air fresh air ventilating fan.

Background technique

Kitchen is that indoor pollution severely afflicated area has been that people generally accept, and therefore, smoke exhaust has become present family must Spare unit, popularity rate are very high.After the SARS epidemic situation that especially experienced whole world outburst in 2003, people are to building, air-conditioning system Safety carried out the self-examination of deep layer, more awake recognizes " it is more important to reinforce the disinfection of room ventilation scavenging ratio ".Building, Finishing, furniture, decoration and the harmful substance of office equipment release are to cause the major reason of indoor pollution.In addition summer and winter People rely more heavily on air-conditioning temperature-reducing and indoor heating, and room ventilation situation is poor, and indoor harmful gas cannot be discharged and be replaced, Pernicious gas constantly accumulates, and concentration constantly increases, and indoor air quality is caused to deteriorate, and makes one to feel sleepy, out of strength, chest Bored, easy illness, work efficiency drop, here it is " Cure of Sick Building Syndrome " that the World Health Organization names.These predicaments Root is fresh air volume deficiency.Currently, healthy, energy saving, simple and direct, reliable fresh air system and new wind devices have become building, sky The focus of design and use person's common concern is adjusted, fresh air ventilator exactly answers above-mentioned requirements and is born.More using fresh air ventilator Room air is changed, keeps room air pure and fresh, can thoroughly solve these problems.Therefore, fresh air ventilator is also a kind of " protects It is strong " product.It is larger in order not to cause room temperature to have because of two-way ventilation since there are the larger temperature difference outside winter and Summer Indoor Fluctuation, air heat exchanger is provided in fresh air ventilator, old wind and fresh air exchange temperature is enabled, reaches not only ventilation but also tie up Hold the basicly stable effect of room temperature.

However, the fresh air ventilator system value of complete set is high, and few then thousands of members, more members then up to ten thousand, also, install More complicated, ordinary people can popularize use absolutely not.If not accounting for installing at the beginning of building, decoration, rear transformation is very Difficulty, cost also increase very big, as a consequence it is hardly possible to, if using no pipeline fresh air system, although it has such as easy for installation, dress The house fixed can also install, save the interior space, each room independent control, and flexibility is high, power cost saving, easy to maintain The advantages that, but the fresh air system after all, if air inlet and air outlet, according to its working principle, will result in from obtaining closely The fresh air come is just purified to be discharged soon, and bedroom, parlor far away is difficult to reach clean-up effect, from Fundamentally say it change wind effect it is limited.Especially in northern cold winter, needed most when change wind indoors, due to not having There is heat exchange, and fresh air is not heated, The cold wind penetrates one's bones, and that keeps away is too late, cannot use at all.At the same time, in actual life There is a problem of one bigger, is exactly that fume pollution problem in kitchen never fundamentally solves, present smoke exhaust is Every household being spread to, and all very advanced, draft is increasing, but, in the case where door and window is fastened, because all not having Smoke exhaust provides enough air ducts, and smoke exhaust is caused to be pumped window crack doing many idle works, indoor formation negative pressure Gap issues whistle, or even the smell of sewer has all been taken out and has been come out, and not only reduces efficiency, and it is dirty not solve oil smoke very well also Dye problem.The time that especially door and window is fastened by the Northeast is generally up to 5 months, and room air is dirty, due to indoor/outdoor temperature-difference Too big, cannot open a window ventilation substantially, and the open kitchen of present building structure is again very universal, and fume pollution, food are different The problem of taste is serious, and interior in the urgent need to address changes wind and provides return air channel for smoke exhaust.

Summary of the invention

For overcome the deficiencies in the prior art, the utility model is intended to provide a kind of work that can either reach interior and change wind With, and the device of return air channel can be provided for smoke exhaust, it realizes fairly simple product, two obtains, received very well at one stroke The purpose of effect.

To solve the above problems, the technical scheme adopted by the utility model is that: a kind of passive type smoke exhaust return air fresh air Ventilating fan is mainly made of ventilation duct, shell, PTC heater, pneumatic switch controller and control panel, which is characterized in that It is equipped with PTC heater in the corresponding position that the enclosure interior for being equipped with several air outlets is connect with ventilation duct, pneumatic switch controller is set It is connect in ventilation duct and with PTC heater and control panel by conducting wire.

The PTC heater is equipped with self power off protective device.

The shell is wall-mounted or desk-top.

The pneumatic switch controller has perception air quantity adjustable function, sets starting air quantity by control panel, works as sense When knowing that air quantity reaches setting value, the actuating of relay, when setting value is not achieved in perception air quantity, relay is disconnected.

As the improvement of the utility model, extraneous cold air enters the room for a long time in order to prevent, reduces room temperature, can divulge information Normally closed type valve is set inside pipe outer end, i.e., at ventilation duct outer end inner radial center, vertical setting top axial is inclined outwardly Rocking bar, rocking bar two sides are symmetrically equipped with semicircle turnover panel, and turnover panel forms normally closed type valve due to being inclined outwardly, by weight, work as row When kitchen ventilator works, room air forms negative pressure, and the semicircle turnover panel of normally closed type valve is opened under external air pressure effect, made Fresh air enters the room；

Replaceable air filtration can be set in ventilation duct and shell connecting pin as a further improvement of the utility model, Net plays dustproof effect, and collecting box is arranged in the lower part of the housing, collects condensed water；

The production of the materials such as plastics, metal can be used for ventilation duct described in the utility model, check (non-return) valve, shell.

It is at low cost since the utility model structure is simple, ordinary people demand can be met, every family can be with multiple rooms Installation, meanwhile, smoke exhaust efficiency is given full play of, and expand its effect, while there is house easy for installation, renovated Can install, save the interior space, each room independent control, flexibility is high, power cost saving, it is easy to maintain the advantages that, market Space is very big, shows good economic benefit and social benefit.

Detailed description of the invention

Fig. 1 is a kind of passive type smoke exhaust return air fresh air ventilating fan cross-sectional view；

Fig. 2 is shell front view；

Fig. 3 is normally closed type valve front view；

Specific embodiment

The utility model will be further described below with reference to the accompanying drawings.

As shown in Figure 1, a kind of passive type smoke exhaust return air fresh air ventilating fan, connect in 2 inside of shell with ventilation duct 1 Corresponding position is equipped with PTC heater 3, and pneumatic switch controller 4 is located in ventilation duct 1.Normally closed type is set inside ventilation duct outer end Valve 7, the normally closed type valve are the rocking bars being inclined outwardly in the vertical setting top axial in ventilation duct outer end inner radial center 8.Replaceable airstrainer 10 is set in ventilation duct and shell connecting pin, collecting box 11 is set in shell intracorporal lower part.

As shown in Fig. 2, shell 2 is equipped with several air outlets 5 and control panel 6；

As shown in figure 3,8 two sides of rocking bar of normally closed type valve are symmetrically equipped with semicircle turnover panel 9；

When installing passive type smoke exhaust return air fresh air ventilating fan, first indoors wall position appropriate make a call to one it is logical The passable hole of air hose intercepts ventilation duct slightly longer than wall thickness, connect it closely with shell, and be arranged in ventilation duct PTC heater is arranged in shell, control is arranged outside shell for normally closed type valve, pneumatic switch controller, airstrainer Panel.Pneumatic switch controller is located in ventilation duct and after being connect with PTC heater and control panel by conducting wire, connects electricity Behind source, setting setting on the control panel starts airflow value.It is indoor in discharge after the smoke exhaust of kitchen installation is switched on work While oil smoke and foul atmosphere, room air forms negative pressure, and due to indoor and outdoor air pressure difference, fresh air enters room by ventilation duct Interior, pneumatic switch controller starting PTC heater work heats the fresh air entered the room, realizes ventilating fan effect.This Ventilating fan generally need to use smoke exhaust 2-3 times every time in the case where more than 10 minutes in kitchen daily, can to room air into The most replacement of row, has been properly arrived at the effect of fresh air ventilating fan, in addition, user can open oil extraction according to demand at any time Smoke machine can carry out inletting fresh air.When outdoor temperature is higher, when not needing to heat fresh air, ventilating fan power supply can be closed, is only made With the function of its ventilation and purification air.

Claims (3)

1. a kind of passive type smoke exhaust return air fresh air ventilating fan is mainly controlled by ventilation duct, shell, PTC heater, pneumatic switch Device and control panel composition processed, which is characterized in that in the corresponding position that the enclosure interior for being equipped with several air outlets is connect with ventilation duct Equipped with PTC heater, pneumatic switch controller is located in ventilation duct and is connected with PTC heater and control panel by conducting wire It connects.

2. a kind of passive type smoke exhaust return air fresh air ventilating fan according to claim 1, it is characterised in that: in ventilation duct The rocking bar that the vertical setting top axial in outer end inner radial center is inclined outwardly, rocking bar two sides are symmetrically equipped with semicircle turnover panel.

3. a kind of passive type smoke exhaust return air fresh air ventilating fan according to claim 1 or 2, it is characterised in that: logical Replaceable airstrainer is arranged in air hose and shell connecting pin, and collecting box is arranged in the lower part of the housing.