DE102006034081A1 - Outflow device for cooking appliance with cooking chamber, comprises overflow edge directed in collecting vessel, where fluid collected from waste trap and over outflow, is derived in vessel, and gas and steam flow through vessel - Google Patents

Abstract

The device (1) comprises an overflow edge (50) directed in a collecting vessel (60). The fluid collected from the waste trap (40) and over the outflow (70), is derived in the collecting vessel. The gas and the steam flow through the collecting vessel for pressure compensation between the cooking chamber and the environment. A condenser (20), made of plastic, is arranged between the cooking chamber and the waste trap.

Description

The The present invention relates to a drainage device for a cooking appliance with a Cooking chamber, a siphon which can be filled at least partly with a liquid and a device outlet, the siphon over an inlet to the cooking chamber is connectable and an overflow edge having.

Cooking appliances in particular are for professional kitchens are well known in the art and include in the Usually a drain in the device floor, the for discharging liquids a food to be cooked, vapor condensed on the food and soiled Cleaning fluids used becomes. When connecting such a cooking appliance with drain to a domestic water network must be taken to ensure that both Drinking water of the domestic water network as well as the food inside of the cooking appliance protected against contamination and contamination by sewage. This is generally due to a separation of fresh water feeds and sewage flows reached. Thus, even in the case of a blockage of wastewater processes in any Fall freshwater inlets can be polluted, you also often put so-called free processes not directly connected to the domestic water network. To escape steam from a free drain of a cooking appliance, the, for example, with a quenching fumes Pulling out of a cooking chamber to prevent, is on newer devices Siphonüberlaufsystem downstream of the free flow.

From the DE 196 51 283 C2 a generic drain device with a free outlet to a cooking appliance for the heat treatment of food is known, which has a vent line, a supply line, a drain line and an additional overflow, which is connected via a siphon with water supply to an overflow line. This trained as emergency overflow siphon overflow system acts as overflow protection for a cooking chamber.

adversely This state of the art is that under certain operating conditions a cooking appliance to yourself in the cooking appliance Coming pressure surges come can overflow the water from the siphon the emergency overflow Press out, without that actual drain is blocked by the drain line. This can lead to, that yourself a brine of dirty water accumulates under the cooking appliance.

Pressure surges can in a cooking appliance For example, be caused by the fact that water from a Beschwadung or a food in a cooking chamber encounters hot areas thereof and evaporated there explosively. The evaporation of water resulting increase in volume leads closed cooking chamber to a pressure increase in the same. This fast increasing pressure will overflow if there is no other opening Drains sewage drain that leads to a siphon. water is catapulted out of the siphon by this pressurization and can also squirt out of an emergency overflow. For the user This results in an annoying Pollution of the parking space of the cooking appliance.

Of the The present invention is therefore based on the object, the generic discharge device in such a way that the Disadvantages of the prior art are overcome. It should in particular prevents water from a siphon at Pressure surges in one essentially closed cooking space from an emergency overflow leaking and dirty the pitch of the cooking appliance.

These Task is inventively characterized solved, that the overflow edge in a collection container leads, wherein in the collecting container at least the liquid collectible from the siphon as well as over a drain is derivable while the collecting container of a gas and / or steam for pressure equalization between the cooking chamber and the environment can be flown through is.

there is particularly proposed that between the cooking chamber and the siphon a condenser for condensing out vapors and / or Vaping from the cooking chamber is arranged, preferably at least a cancellation device, in particular for injecting water into the condenser, at least partially arranged in the capacitor.

With the invention is also proposed that the siphon on the blotting device and / or a water mask in the condenser and / or a Beschwadungseinrichtung in the oven and / or a cleaning device in the oven can be filled with water.

Further can be provided that the Inlet of the siphon below the overflow edge of the siphon, related to the bottom of the siphon, is arranged.

Also It is suggested that over the overflow edge the flow direction a gas-water mixture and / or steam-water mixture from the siphon into the collecting container reversible is.

According to the invention, it is preferred that the cross-sectional area of the collecting container is greater than is the cross-sectional area of the siphon.

Further can be provided that the receptacle a flow for the liquid, preferably in the region of its lowest point.

there can be provided that the Procedure with the device sequence and / or the siphon, preferably with the interposition at least a shut-off device, is connectable.

With the invention is further proposed that the collecting container a Has outlet edge above its maximum filling level, preferably leads to an outlet box and / or a cooking appliance deduction.

there can be provided that over the outlet edge the flow direction a gas and / or steam from the collecting container in the outlet box and / or Gargeräteabzug is reversible.

preferred Embodiments of the invention are characterized by a sensor in the siphon for detecting the liquid filling level the siphon, which is in operative connection with the Ablöscheinrichtung, the Beschwadungseinrichtung, the cleaning device and / or the shut-off device, in particular with the interposition of a control unit.

Further can be provided that the Siphon, the collection container and / or the outlet box from the rest of the cooking appliance, in particular from the condenser, is removable or are.

With The invention also proposes that the condenser, the siphon, the collecting container and / or the outlet box is made of plastic, or separately or together.

Finally will with the invention, a cooking appliance with a cooking chamber, one at least partially with liquid fillable Siphon and a device drain, with the siphon over an inlet to the cooking chamber is connectable and an overflow edge has proposed with a drain device according to the invention.

Of the Invention is thus the surprising finding underlying that an air-water mixture, that by a pressure surge on (dirt) water formed in a siphon of a drain device of a cooking appliance is in a built-in drain device, the siphon downstream collection container demystify that the taken from the siphon Water in the collection container collects. The collecting container must be there be deep enough to take in even the entire siphon contents a sufficiently large cross-sectional area above in the collecting container setting water level release, so that the gas and / or vapor content of the air-water mixture pass unhindered the collecting container can, without water again. In the demixing is So the water caught while the air and / or steam flows out of the cooking appliance. The trapped and of The water separated water can then through a drain hose or the like controlled flow into the device drain and thus in a domestic water network, to which the cooking appliance for feeding fresh water and for removal connected by service water, get.

Even if at a strong pressure surge the off flowing out of the cooking chamber Air entrains the water from the siphon when leaving the cooking appliance, segregated Thus, in a drain device according to the invention, the air-water mixture, what an uncontrolled discharge of dirty water from the emergency overflow of the cooking appliance prevented.

at a particularly advantageous drain device according to the invention is the Outlet edge of the collection container as high as possible, as far as possible from the bottom of the collection container removed, arranged to prevent water from splashing out of the receptacle. By contrast, the airflow that passes through the exit edge leaves the device, preferably after another redirection down, by a the collection container downstream Outlet box, either directly or via a device vent. The arrangement of the outlet box on the cooking appliance and its geometry are suitable to prevent the ingress of air or steam into the cooking appliance.

Of the Siphon of emergency overflow can by pressing a quenching nozzle in one the condenser upstream capacitor to be refilled. Alternatively, a connection between the siphon and a be provided in the condenser existing water mask, so that the siphon automatically refilled from the condenser. Thus, none are formed unpleasant water sheets at the site of a cooking appliance with one drainage device according to the invention.

advantageously, is the drain device according to the invention from the cooking appliance, in particular from the condenser of the same, removable, to facilitate cleaning to be able to. Here is the dismantling of the device in their various Components particularly favorable.

The components of the drainage device according to the invention can either individually or to be formed together from plastic to easily realize the complicated geometry of the same.

Further Details of the invention will become apparent from the following description, in the embodiments the invention with reference to schematic drawings are explained in detail. there shows:

1 a perspective view of an outlet device according to the invention in a condenser system for a cooking appliance;

2 an isometric view of a portion of the outlet device of 1 ; and

3 another isometric representation of the part of 2 , of the page.

1 shows a drain device according to the invention 1 for connection to a cooking appliance. In this case, the cooking appliance comprises a cooking chamber (not shown), which has a drain 10 with a capacitor 20 connected is. In the condenser 20 There is a Ablöhlheit not shown, can be condensed with the hot vapors from the oven with the help of sprayed water. Such condensed vapors (not shown) as well as wastewater (not shown) may be via an inlet 30 into a siphon 40 and optionally over an overflow edge of an emergency overflow 50 of the siphon 40 in a collection container 60 flow from where they have a flow 70 of the collection container 60 get into a not shown sewer system of the cooking appliance, as in particular the 2 and 3 refer to. Furthermore, the collection container 60 over a drainage edge 90 with a spout box 100 connected, in turn, an outlet opening 110 for air and the like. Such a drainage device according to the invention 1 for example, works as follows:
If a pressure surge in the oven, for example, the fact that a door of the cooking appliance is closed, after cold outside air has entered the otherwise warmed cooking chamber, and is heated by a starting air circulation system of said outside air in the oven at high speed, so it is planted when closing the door caused by thermal expansion of the outside air pressure surge through the process 10 until the inlet of the siphon 30 continued. A similar effect arises when evaporating water in the cooking chamber by the rapid expansion of the evaporated water. The pressure surge hits in the form of accelerated air on water with a water level 80 in the siphon 40 and tears some of the water out of the siphon 40 with itself over the overflow edge 50 , This air-water mixture thereby shoots into the collecting container 60 , which ensures with its large cross-section that the air-water mixture occupies a large surface area. Over this surface, the air-water mixture segregates at high speed. The segregated air then escapes via the outlet edge 90 of the collection container 60 in an outlet box 100 and from there through an outlet opening 110 while the segregated water through the drain 70 of the collection container 60 flows into the sewer system of the cooking appliance. The outlet edge 90 of the collection container 60 is chosen as high as possible, so that as no water in the outlet box 100 can splash. The outlet opening 100 can be connected to a device exhaust, not shown.

The siphon 40 can then again with the help of fresh water from the quenching system in the condenser 20 on the water level 80 be filled. Alternatively, water may be taken from the collection container 60 be used to the siphon 40 refill again. Between the siphon 40 and a water reservoir in the condenser 20 may also be a connection, so that the siphon 40 immediately from the condenser 20 is refilled.

The downstream connection of the collecting container 60 after the siphon 40 thus serves to catch from the siphon 40 due to pressurization of displaced liquid passing over the device drain 70 can flow, while the pressurization caused air or the pressurized steam effected for pressure equalization between cooking chamber and environment after deflection from the, the collection container 60 downstream outlet box 100 flows.

The in the above description, in the drawings and in the claims disclosed features both individually and in any combination for the realization be essential to the invention in its various embodiments.

1

draining device

10

procedure a cooking chamber

20

capacitor with cancellation

30

enema a siphon

40

siphon

50

Emergency overflow / overflow edge a siphon

60

receptacle

70

procedure a collection container

80

water level a filled one siphons

90

discharge edge a collection container

100

headbox

110

outlet opening

Claims (14)

Drain device ( 1 ) for a cooking appliance having a cooking chamber, a siphon (at least partially fillable with a liquid) (US Pat. 40 ) and a device procedure ( 10 ), the siphon ( 40 ) via an enema ( 30 ) is connectable to the cooking chamber and an overflow edge ( 50 ), characterized in that the overflow edge ( 50 ) in a collecting container ( 60 ), wherein in the Auffangbehälter ( 60 ) at least the liquid from the siphon ( 40 ) collectible and via a drain ( 70 ), while the collecting container ( 60 ) by a gas and / or steam for pressure equalization between the cooking chamber and the environment can be flowed through. Drainage device according to claim 1, characterized in that between the cooking chamber and the siphon ( 40 ) a capacitor ( 20 ) is arranged for condensing out vapors and / or vapors from the cooking chamber, wherein preferably at least one Ablöscheinrichtung, in particular for injecting water into the condenser ( 20 ), at least partially in the capacitor ( 20 ) is arranged. Drainage device according to claim 1 or 2, characterized in that the siphon ( 40 ) via the quenching device and / or a water mask in the condenser ( 20 ) and / or a Beschwadungseinrichtung in the oven and / or a cleaning device in the oven with water can be filled. Drain device according to one of the preceding claims, characterized in that the inlet ( 30 ) of the siphon ( 40 ) below the overflow edge ( 50 ) of the siphon ( 40 ), based on the bottom of the siphon ( 40 ) is arranged. Drainage device according to one of the preceding claims, characterized in that over the overflow edge ( 50 ) the flow direction of a gas-water mixture and / or steam-water mixture from the siphon ( 40 ) in the collecting container ( 60 ) is reversible. Drainage device according to one of the preceding claims, characterized in that the cross-sectional area of the collecting container ( 60 ) greater than the cross-sectional area of the siphon ( 40 ). Drainage device according to one of the preceding claims, characterized in that the collecting container ( 60 ) a process ( 70 ) for the liquid, preferably in the region of its lowest point. Drain device ( 1 ) according to claim 7, characterized in that the sequence ( 70 ) with the device drain and / or the siphon ( 40 ), preferably with the interposition of at least one shut-off device, is connectable. Drain device ( 1 ) according to one of the preceding claims, characterized in that the collecting container ( 60 ) an outlet edge ( 90 ) above its maximum filling level, preferably to an outlet box ( 100 ) and / or a Gargeräteabzug leads. Drain device ( 1 ) according to claim 9, characterized in that over the outlet edge ( 90 ) the flow direction of a gas and / or vapor from the collecting container ( 60 ) in the outlet box ( 100 ) and / or cooking device deduction is reversible. Drain device ( 1 ) according to one of the preceding claims, characterized by a sensor in the siphon ( 40 ) for detecting the liquid level ( 80 ) of the siphon ( 40 ), which is in operative connection with the Ablöscheinrichtung, the Beschwadungseinrichtung, the cleaning device and / or the shut-off device, in particular with the interposition of a control or regulating unit. Drain device ( 1 ) according to one of the preceding claims, characterized in that the siphon ( 40 ), the collecting container ( 60 ) and / or the outlet box ( 100 ) from the rest of the cooking appliance, in particular from the condenser ( 20 ), is removable or are. Drain device ( 1 ) according to one of the preceding claims, characterized in that the capacitor ( 20 ), the siphon ( 40 ), the collecting container ( 60 ) and / or the outlet box ( 100 ) is made of plastic or are, separately or together. Cooking appliance with a cooking chamber, a siphon which can be filled at least partly with liquid ( 40 ) and a device drain, wherein the siphon ( 40 ) via an enema ( 30 ) is connectable to the cooking chamber and an overflow edge ( 50 ), characterized by a drain device ( 1 ) according to one of the preceding claims.