CN214150614U

CN214150614U - Air suction type smoke detector capable of actively sampling

Info

Publication number: CN214150614U
Application number: CN202023001993.4U
Authority: CN
Inventors: 翁铢炜; 卓有燃; 邱志洋; 熊海燕; 廖雅媚; 石进
Original assignee: Shenzhen Cha Zhi Technology Co ltd
Current assignee: Shenzhen Cha Zhi Technology Co ltd
Priority date: 2020-12-14
Filing date: 2020-12-14
Publication date: 2021-09-07
Anticipated expiration: 2030-12-14

Abstract

The utility model discloses a smoke detector is felt to formula of breathing in about an initiative sampling relates to the flue gas and detects technical field. The air purifier is provided with a mixing cavity, the mixing cavity is communicated with a filter through a first air suction pump, the rear end of the filter is communicated with a detection cavity, the rear end of the detection cavity is communicated with a second air suction pump, and a second air outlet is formed in the second air suction pump. The active sampling air suction type smoke detector reduces the frequency of filter replacement and ensures that the air flow in the staged cavity is unchanged. When the air flow in the detection cavity cannot meet the requirement and the power of the suction pump reaches 90%, a fault alarm is sent out. Requiring replacement of the filter or detection of the equipment as normal.

Description

Air suction type smoke detector capable of actively sampling

Technical Field

The utility model discloses a smoke detection technical field especially relates to an formula of breathing in smoke detector of initiative sampling.

Background

With the rapid development of national economy, the requirement on fire prevention of buildings is higher and higher, so that the demand on fire early warning systems is higher and higher, and the air-breathing smoke detector is recognized by the society for early warning with high sensitivity. An air suction type smoke-sensing fire detector or an extremely early fire detector sucks air in a protection area into the detector through an air sampling pipe for analysis, so that early warning of fire is performed.

The common air-breathing smoke detector is not easy to apply due to filter blockage, light source pollution and the like, and brings a large amount of work for customers and maintenance personnel.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem that exists among the correlation technique, the utility model discloses an embodiment provides an active sampling's formula of breathing in smoke detector. The technical scheme is as follows:

this suction-type smoke detector of initiative sampling is provided with the hybrid chamber, the hybrid chamber passes through first aspirator pump intercommunication filter, the rear end intercommunication detection chamber of filter, the rear end intercommunication second aspirator pump in detection chamber, be provided with the second gas vent on the second aspirator pump.

In one embodiment, the rear end of the first air suction pump is further provided with a first air outlet.

In one embodiment, the input end of the mixing cavity is provided with at least one air conveying pipe.

In one embodiment, the bottom of the filter is provided with a slag discharge port, and a filter screen is inserted into the slag discharge port.

In one embodiment, a plurality of sound insulation protruding structures are arranged in the mixing cavity, and sound insulation cotton is wrapped outside the mixing cavity.

In one embodiment, a detection window is arranged at the upper end of the detection cavity, a sealing cap is spirally arranged at the upper end of the detection window, and a detection tube inserted into the detection cavity is fixedly arranged inside the sealing cap.

The utility model discloses a technical scheme that embodiment provided can include following beneficial effect:

the active sampling air suction type smoke detector reduces the frequency of filter replacement and ensures that the air flow in the staged cavity is unchanged. When the air flow in the detection cavity cannot meet the requirement and the power of the suction pump reaches 90%, a fault alarm is sent out. Requiring replacement of the filter or detection of the equipment as normal.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic structural diagram of an air-breathing smoke detector in the prior art provided by the present invention.

Fig. 2 is a schematic structural diagram of the actively sampling suction-type smoke detector provided by the present invention.

Reference numerals:

1. a gas delivery pipe; 2. a mixing chamber; 3. a first aspirator pump; 4. a first exhaust port; 5. a filter; 6. a probe chamber; 7. a second getter pump; 8. a second exhaust port.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of other embodiments without departing from the spirit and scope thereof as defined by the appended claims.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," and the like are for illustrative purposes only and do not denote a single embodiment.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The structure of traditional formula smoke detector that breathes in is like figure 1, and the inside sampling of traditional formula smoke detector that breathes in is pressed the air into the analysis chamber through the pressure of aspiration pump, because the analysis chamber receives pollution such as dust, greasy dirt in the air, generally all adopts filter 5 to filter, if filter 5 has a bit of dust or other material, the air will be a small amount or can't be pressed into the analysis chamber, leads to equipment analysis failure or analysis inaccurate.

As shown in fig. 2, the utility model discloses increase an initiative sampling mode, this initiative sampling's formula of breathing in smoke detector is provided with hybrid chamber 2, hybrid chamber 2 communicates filter 5 through first aspirator pump 3, chamber 6 is surveyed in the rear end intercommunication of filter 5, survey the rear end intercommunication second aspirator pump 7 in chamber 6, be provided with second gas vent 8 on the second aspirator pump 7.

Adding an active getter pump between the filter 5 and the analysis chamber will completely solve this problem. When detecting that the air flow in the analysis cavity is in the design range, the air suction pump does not work, and when the air in the analysis cavity is less than the design parameters, the air suction pump works and adjusts the air flow, so that the air flow in the detection cavity 6 is ensured to meet the design range. Therefore, the frequency of replacing the filter 5 is reduced, and the constant size of the air flow in the cavity is ensured. When the gas flow in the detection cavity 6 cannot meet the requirement and the power of the suction pump reaches 90%, a fault alarm is sent out. It is required to replace the filter 5 or to check whether the apparatus is normal.

The rear end of first aspiration pump 3 still is provided with first gas vent 4, can in time discharge the gas after detecting through setting up first gas vent 4, has improved gaseous detection speed, has reduced gaseous detection cycle.

The input end of the mixing cavity 2 is at least provided with one air conveying pipe 1, and the air detection device can detect air in different positions and different environments by installing the plurality of air conveying pipes 1, so that the comprehensiveness and objectivity of air detection are improved. The bottom of filter 5 is provided with row's cinder notch, arrange the cinder notch interpolation and be equipped with the filter screen, can in time discharge the waste residue that filter 5 produced through setting up row cinder notch. A plurality of sound-proof protruding structures are arranged in the mixing cavity 2, and sound-proof cotton is wrapped outside the mixing cavity 2. The noise generated in the operation process of the mixing cavity 2 is effectively reduced by arranging the convex structure in the mixing cavity 2; through the outside parcel soundproof cotton at mixing chamber 2, improved this mixing chamber 2's syllable-dividing effect, the effectual noise that has reduced.

The upper end of the detection cavity 6 is provided with a detection window, the upper end of the detection window is spirally provided with a sealing cap, and a detection tube inserted in the detection cavity is fixedly arranged in the sealing cap. Through the internally mounted detecting tube in surveying chamber 6 can be effectual carry out the selective examination to surveying 6 inside materials in chamber, improved detection effect.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure should be limited only by the attached claims.

Claims

1. The utility model provides an active sampling's formula of breathing in smoke detector, is provided with the hybrid chamber, the hybrid chamber is through first aspirator pump intercommunication filter, its characterized in that, the chamber is surveyed in the rear end intercommunication of filter, the rear end intercommunication second aspirator pump in surveying the chamber, be provided with the second gas vent on the second aspirator pump.

2. The actively sampled aspirated smoke detector of claim 1, wherein the first aspirator pump is further provided at a rear end with a first exhaust port.

3. The actively sampled air-breathing smoke detector as claimed in claim 1, wherein the input end of the mixing chamber is provided with at least one air delivery pipe.

4. The actively sampled air-breathing smoke detector as claimed in claim 1, wherein a pressure sensor is installed inside said first air-breathing pump, said pressure sensor is connected to a controller, said controller is connected to a solenoid valve, said solenoid valve is installed at the connection of said first exhaust port and said first air-breathing pump.

5. The actively sampled air breathing smoke detector as claimed in claim 1, wherein a slag discharge port is provided at the bottom of said filter, and a filter screen is inserted into said slag discharge port.

6. The actively sampled aspirated smoke detector of claim 1, wherein a plurality of protruding structures for sound insulation are disposed in the mixing chamber, and sound insulation cotton is wrapped outside the mixing chamber.

7. The actively sampled air-breathing smoke detector according to claim 1, wherein the upper end of the detection cavity is provided with a detection window, the upper end of the detection window is spirally provided with a sealing cap, and the interior of the sealing cap is fixedly provided with a detection tube inserted in the detection cavity.