FI125795B - Door assembly and method for providing ventilation in connection with the door assembly - Google Patents

Abstract

The invention relates to a door arrangement suitable for attachment on frames (7) of a door opening, wherein the door arrangement is formed from a frame piece (1) and door-curtain flaps (6) extending from approximately the upper edge of the door opening to close to the floor surface, wherein the door-curtain flaps (6) are situated essentially air tightly next to each other. The frame piece (1) comprises feed-throughs (3,2) in order to create a negative pressure on one side of the door arrangement, and wherein the frame piece (1) comprises an adjustable quick-attachment arm (5) attaching the frame piece (1) to one side of the door opening.

Description

Door assembly and method for providing ventilation in connection with the door assembly

The invention relates to a door assembly according to the preamble of claim 1.

The invention also relates to a method in connection with a door assembly.

The need for climate differentiation of farms varies considerably depending on needs and opportunities. In practice, space separation solutions for clean and so-called. dirty spaces at the junctions are highly contaminated and due to pressure changes there is a high risk of contaminant spreading. As a result, solutions are generally tailor-made and therefore extremely expensive. In addition, these interfaces are technically difficult to implement and thus slow to implement.

Underpressing and overpressure of premises often requires extensive engineering measures, which are both costly and slow to implement. Preparation for the so-called. Against the Pande-mia threat, significant preparations, both nationally and internationally, for the production of insulation facilities are required.

Civil protection needs are undergoing a major shift as threat images move away from traditional bomb protection, to light interiors of buildings, to protect users from biological, chemical and radiological threats. For these so-called. lightweight protection needs to produce fast-setting or, preferably, continuous protection, virtually unobtrusive differentiation technology.

Asbestos legislation requires the construction of a depressurized barrier tunnel from clean spaces, so-called. the dirt, ie the space leading to the asbestos demolition area. Similar differentiation is also required when dismantling structures damaged by moisture and mildew. As a rule, the cost of dust-free renovation is hindered by the costs involved, primarily the costs of constructing a functional and dust-safe space differentiation. In the construction sector, a major housing boom is expected in the very near future, with the focus on the so-called residential boom. bathroom repairs due to the need for HV technology refurbishment and repair. Because the goal is to reduce the need for evacuation and evacuation during repair, it is necessary to provide economically and operationally viable technical solutions that allow staying in the immediate vicinity of the repair work, without being exposed to the contaminants resulting from the repair work.

The amount of carbon dioxide will increase significantly as the density of people increases, and the technology being developed will allow the supply air door to be fitted with a carbon dioxide sensor, which will be integrated to control the amount of additional air flow through the doorway.

The Decree of the Ministry of Social Affairs and Health on the smoking space of restaurants and other nutrition stores requires that the access to the smoking area be arranged so that tobacco smoke does not spread outside the space.

Especially in renovation and renovation, the space to be repaired is to be isolated from the rest of the space by means of different doors. Normal doors make it difficult to move between repaired and uncorrected space. Airtight revolving doors, on the other hand, are very bulky and expensive.

Frequently, the area to be repaired is subjected to vacuum to prevent moisture or dust from entering the uncorrected area. In this case, all passageways are required to have a relatively good seal to prevent dust from being moved away from the area to be repaired. According to the prior art, the vacuum is generally formed by a separate ventilation unit and both the exhaust and inlet paths are implemented using channels of conventional ventilation technology. Such hysterical solutions entail high costs.

Also known in the prior art are so-called slate doors which allow movement through the door opening without the active opening of the door. Such door arrangements have been described e.g. U.S. Patent 4,095,642; and WO 03/075722. These door assemblies per se allow movement but are not as tight as normal doors. These door types also require normal installation.

The object of the invention is to solve the technical problems of the above-described technology and to this end to provide a completely new type of door assembly and a ventilation method in connection with the door assembly.

In general, it is an object of the invention to provide a technology capable of producing functional air control technology for space differences. The primary objective is to prevent the spreading of contaminants from contaminated areas to the so-called. clean rooms. The object of the invention is to obtain products which operate at either excess pressure, negative pressure or neutral pressure, depending on the intended use. In addition, the goal is to integrate the ventilation of a differentiated space so that it responds to changes in atmospheric pressure and thus, through the technology being developed together, continuously ensures the desired climatic conditions are achieved.

The invention is based on the provision of a door assembly comprising a lightweight, yet air-tight curtain arrangement through which it is possible to pass through without opening the door. Connected to this curtain assembly is a lead-through arrangement for forming underpressure or overpressure and possible other lead-throughs.

Preferably, the lead-through assembly is at the top of the door assembly.

More specifically, the door assembly according to the invention is characterized in what is set forth in the characterizing part of claim 1.

The method according to the invention, in turn, is characterized by what is stated in the characterizing part of claim 6.

The invention makes it easy to implement a door solution that can create a vacuum or overpressure on a desired object, typically a room or part of a building. However, the door assembly allows easy passage through the door and the easy attachment allows the door assembly to be secured at a low cost. Due to its construction, the door assembly is suitable for different widths of passageways, typically for doors.

The invention is applicable to demolition sites, drying sites, sites to be renovated, sites to be repaired, sites to be protected, isolation facilities, clean room construction as well as a tool for dust-free repair and new construction.

The invention will now be described by way of example with reference to the accompanying drawings.

Fig. 1a shows a door arrangement according to the invention viewed from the side of the pressure channel.

Figure Ib shows a horizontal section through Figure 1a.

Figure 2a shows a door assembly according to the invention on the opposite side from Figure 1a.

Figure 2b is a horizontal sectional view of Figure 2a.

Figure 3 is a vertical sectional view of the left side of Figure 2a.

According to Fig. 1a, the door assembly typically consists of two parts: a frame member 1, which is made of metal, for example, and a door frame strip 6 attached to the frame member 1, which is typically transparent plastic. The door curtain strips 6 are sealed against each other and are flexible and impervious to gas. Their length is prevented so that, when the door curtain assembly is in place, the tabs extend as close as possible to the floor surface. The door curtain strips can also be slightly overlapping each other. The metal body 1 is typically open internally and the flows therethrough are effected by means of a depressurization channel 2 and a break broken by visible orifice fittings 3. Figure 1a also shows a connection opening 4 for a possible vacuum. If the vacuum cleaner is not used, close the connection opening. As shown in Figure Ib, the metal frame element is located on the side of the door opening having the depression duct assembly 2.

2a, the exhaust air openings 3 open on the side of the space to be treated and also on this side there is also an adjustable quick-release arm 5 for supporting the body member 1 to the door opening frames 7, Fig. 2b. Thanks to the quick-release arm5, the door assembly can be attached to doors of different widths. If necessary, in the case of large differences in door widths, the quick-release arm 5 may be suitably engaged with the door curtain strips and adjust their width transversely. Thus, in the case of narrow doors, the strips should be partially overlapping and, when adjusting the strips 6 into the wider door openings, this overlap will be reduced or eliminated.

The fastening arm 5 may be of the telescopic type according to the figure, whereby the adjustment may be effected by means of a longitudinal thread. By telescopic type is meant an elongated structure of nested rods having, for example, a circle, rectangle, square or triangle. Alternatively, the telescopic clamping arm may include a separate lock with a transverse screw. Alternatively, the quick release arm 5 may be of the accordion type.

One alternative to the quick locking of the quick release lever 5 is a spring-loaded lever door system in which the spring is in the spring locking position and when released from the locking position, the quick release lever 5 is pressed against the door jambs.

As shown in Figure 3, most of the body 1 is outside the space to be cleaned or repaired, and only the air vents 3 open to the side to be cleaned. In addition, the fastening arm 5 extends into the region of the frame 7. Figure 3 does not show the alternative whereby longer openings are connected to the air vents 3 to transfer the suction effect deeper into the space to be repaired or renovated. It may also be advantageous to make additional suction tubes at each of the apertures to avoid possible flow short circuits directly from the suction tubes into the slots at the top of the strips 6.

Within the scope of the invention, unit 1 may be located on either side of the door relative to the space to be repaired, dried or renovated.

In the target space, both underpressure and overpressure can be formed, depending on which direction the air flow is to be generated. For example, at the end of a repair or painting process, the space to be renovated or repaired may be pressurized to prevent dirt from entering that space.

Claims (10)

Door arrangement, comprising a body piece (1) and strips (6) connected thereto, extending from approximately the upper edge of the doorway to the floor surface, the strips being substantially airtightly arranged next to each other, characterized in that - the strips (6) are fixed at the stem (1), comprising: - passages (3, 2) to form a negative pressure on one side of the door element, and - a fastener (5) for securing the stem (1) to one side of the door. Door arrangement according to claim 1, characterized in that the stem (1) is made of metal. Door arrangement according to claim 1 or 2, characterized in that the tension of the telescopic-like fastening element (5) is realized by means of a longitudinal screw arrangement. Door arrangement according to claim 1 or 2, characterized in that the tensioning of the telescopic-like fastening element (5) is realized by means of a transverse screw arrangement. Door arrangement according to claim 1 or 2, characterized in that the tensioning of the fastening element (5) is realized by means of an accordion arrangement. A method of a door arrangement, which door arrangement comprises a body piece (1) and strips (6) connected thereto extending from approximately the upper edge of the door opening to the floor surface, the strips being substantially airtightly arranged next to each other, characterized by - 6) fastened to the stem (1), comprising - passages (3, 2) to form a negative pressure on one side of the door element, and - a fastener (5) to secure the stem (1) to one side of the door. Process according to claim 6, characterized in that the trunk piece (1) is made of metal. Method according to claim 6 or 7, characterized in that the tensioning of the telescopic-like fastening element (5) is realized by a longitudinal screw arrangement. Method according to claim 6 or 7, characterized in that the tensioning of the telescopic-like fastening element (5) is realized by a transverse screw arrangement. Method according to claim 6 or 7, characterized in that the tensioning of the fastening element (5) is realized by means of an accordion arrangement.