CN218716929U

CN218716929U - Portable closed space air interchanger

Info

Publication number: CN218716929U
Application number: CN202222939810.6U
Authority: CN
Inventors: 韩云庆; 刘汉政; 冀月海; 练领先; 崔建华; 董爱玲; 张伟
Original assignee: Huaneng Qinbei Power Generation Co Ltd
Current assignee: Huaneng Qinbei Power Generation Co Ltd
Priority date: 2022-11-04
Filing date: 2022-11-04
Publication date: 2023-03-24
Anticipated expiration: 2032-11-04

Abstract

The utility model provides a portable enclosure space breather, include: the air pipe comprises an air inlet pipe and an air outlet pipe, one end of the air inlet pipe and one end of the air outlet pipe are placed at the bottom of the closed space in the using process, the other end of the air inlet pipe and the other end of the air outlet pipe are connected with the fan, and the fan is placed outside the closed space; a first air butterfly valve is arranged on a pipe section, close to the fan, of the air inlet pipe; a second air butterfly valve is arranged on a pipe section, close to the fan, of the air outlet pipeline; the gas detection unit is arranged at the bottom of the air inlet pipeline and used for detecting the concentrations of combustible gas, oxygen, carbon monoxide gas and carbon dioxide gas in the closed space; the gas detection unit is also connected with an alarm, and the alarm is placed outside the closed space. The utility model discloses can ensure that the staff gets into the safety of well, valve well, airtight space work, reduce and get into a large amount of preparation work before airtight space work.

Description

Portable closed space air interchanger

Technical Field

The utility model relates to a ventilation equipment technical field such as in the pit especially relates to a portable enclosure space breather.

Background

In the prior art, long-time natural ventilation is required before the combustible gas detector enters a closed space to work, or a fan is arranged to perform forced ventilation, and the combustible gas detector is carried by people for detection.

The existing technology is insufficient: 1. the ventilation time is long, and the construction period is delayed; 2. a fixed power supply and a fixed platform are needed for installing the fan, so that the workload is increased; 3. the ventilation effect of the fan is poor, and the thorough air replacement cannot be ensured; 4. personnel detection requires access to internal detection, and poor air displacement may cause suffocation of the measuring personnel.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned problems, a portable closed space ventilation device is provided. The utility model discloses mainly utilize the cooperation work of intake stack, air-out pipeline, gaseous detecting element and alarm to can ensure staff's safety, and reduce and get into a large amount of preparation work before airtight space work.

The utility model discloses a technical means as follows:

a portable enclosure ventilation device comprising: the air pipe comprises an air inlet pipe and an air outlet pipe, one end of the air inlet pipe and one end of the air outlet pipe are placed at the bottom of the closed space in the using process, the other end of the air inlet pipe and the other end of the air outlet pipe are connected with the fan, and the fan is placed outside the closed space;

a first air butterfly valve is arranged on a pipe section, close to the fan, of the air inlet pipeline; a second air butterfly valve is arranged on a pipe section, close to the fan, of the air outlet pipeline;

the gas detection unit is arranged at the bottom of the air inlet pipeline and used for detecting the concentrations of combustible gas, oxygen, carbon monoxide gas and carbon dioxide gas in the closed space; the gas detection unit is also connected with an alarm, and the alarm is placed outside the closed space.

Further, the ventilation pipeline is a folded pipeline made of tin foil materials.

Furthermore, the diameter of the ventilation pipeline is 20-30 mm.

Furthermore, the fan is an axial flow fan, the shell of the axial flow fan is made of an aluminum alloy material, and fan blades of the axial flow fan are made of an anti-static material.

Further, the fan is a single-shaft bidirectional driving fan.

Furthermore, the fan is driven by a driving device to operate, and the driving device is assembled and is provided with a driving motor and a pedal type driving device; when the work place has the sustainable power supply, the driving motor is adopted to drive the fan, and when the work place is in the field or does not have the sustainable power supply, the pedal type driving device is adopted to drive the fan.

Further, the driving motor adopts a single-shaft dual-driving motor.

Further, the gas detection unit comprises a combustible gas detector, an oxygen content detector, a carbon monoxide detector and a carbon dioxide detector.

Furthermore, the alarm is provided with a front panel, and a display screen and a plurality of alarm indicating lamps are arranged on the front panel.

Compared with the prior art, the utility model has the advantages of it is following:

1. the utility model provides a portable enclosure space breather, the device are that detection, warning, automatic interlocking are as an organic whole comprehensive safety device has, are applicable to the place that no power was supplied with simultaneously.

2. The utility model provides a portable enclosure space breather adopts tinfoil air pipe, and anti-static axial fan blade, detecting element interlocking protection are synthesized integratively, and safe explosion-proof conveniently carries, and easy operation's characteristics adopt the two-way drive fan of unipolar.

3. The utility model provides a portable enclosure space breather avoids personnel to get into and takes place unsafe accident in the pit work of regularity such as electric industry and mining enterprise, municipal administration or other long-term enclosure spaces before carrying out the operation.

4. The utility model provides a portable enclosure space breather can ensure that the staff gets into the safety of well, valve well, airtight space work. The preparation work before entering the closed space for working is greatly reduced.

Based on the above reason the utility model discloses can extensively promote in fields such as well, valve well, airtight space down.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of the present invention.

In the figure: 1. an air outlet pipeline; 2. an air inlet pipeline; 3. a second air butterfly valve; 4. a first air butterfly valve; 5. a fan; 6. a drive device; 7. a gas detection unit; 8. an alarm; 81. a display screen; 82. and an alarm indicator light.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The invention aims to ensure the safety of workers entering a drainage well, a valve well and a closed space for work. The preparation work before entering the closed space for working is greatly reduced.

As shown in figure 1, the utility model provides a portable confined space breather can avoid the workman to develop work in getting into catch basin, trench, wait the confined space and take place unsafe factor such as stifling, combustible gas deflagration, carbon monoxide poisoning. The device has the extended functions of convenient carrying, temperature detection, harmful gas detection alarm, starting of the oxygen supply device with low oxygen content and interlocking, and the like, carries the device when workers enter a working site, and firstly puts the device into a closed space until the workers can enter an operation area when reaching a safe working environment state in the working space.

The portable enclosure ventilation device comprising: the air pipe comprises an air inlet pipe 2 and an air outlet pipe 1, one end of the air inlet pipe 2 and one end of the air outlet pipe 1 are placed at the bottom of the closed space in the using process, the other end of the air inlet pipe 2 is connected with the fan 5, and the fan 5 is placed outside the closed space; a first air butterfly valve 4 is arranged on the section, close to the fan 5, of the air inlet pipeline 2; a second air butterfly valve 3 is arranged on a pipe section, close to the fan 5, of the air outlet pipeline 1; the gas detection unit 7 is installed at the bottom of the air inlet pipeline 2 and used for detecting the concentrations of combustible gas, oxygen, carbon monoxide gas and carbon dioxide gas in the closed space; the gas detection unit 7 is also connected with an alarm 8, and the alarm 8 is placed outside the closed space. In this embodiment, the device of the present invention is used in a deep well. The air outlet pipeline 1 and the air inlet pipeline 2 are deeply arranged at the bottom of the deep well.

In the embodiment, the ventilation pipeline is a folded pipeline which is made of tin foil materials and has the diameter phi of 20-30mm, and the ventilation pipeline has the effects of light weight, convenience in arrangement and the like.

In this embodiment, the fan 5 is an axial flow fan (a single-shaft bidirectional driving fan), the axial flow fan is made of an aluminum alloy shell, and the fan blades are made of wood or other antistatic materials, so as to prevent combustible gas (methane, methane and CO gas) remaining in the space from deflagrating and causing fire in the ventilation process.

In this embodiment, the driving device 6 of the fan 5 is an assembled type, and is provided with a driving motor and a pedal driving device, and the driving motor is a single-shaft dual-driving motor. If the work place has continuous power supply, the motor is adopted for driving. If the fan is in the field or does not have continuous power supply, the fan can be driven by connecting a pedal type driving device.

In the present embodiment, ventilation is performed by using a ventilation duct to increase the air flow replacement effect in the closed space.

In this embodiment, a combustible gas detector, an oxygen content detector, a carbon monoxide detector, and a carbon dioxide detector are installed in the device, and are respectively used for detecting the concentrations of combustible gas, oxygen, carbon monoxide gas, and carbon dioxide gas in the enclosed space.

In this embodiment, the alarm 8 has a front panel, and a display screen 81 and four alarm indicator lamps 82 are provided on the front panel, and the four alarm indicator lamps 82 respectively correspond to the combustible gas detector, the oxygen content detector, the carbon monoxide detector, and the carbon dioxide detector. The type of the alarm 8 is JSA8-M4.

The utility model discloses an use:

connect breather with air pipe before using, put into the deep well bottom, start the device, if there is combustible gas or oxygen content not enough in the well, the device can send the warning, reminds personnel to forbid getting into through alarm indicator, breather automatic start takes a breath, and air pipe of taking a breath divides two tunnel, and the air-out is gone all the way to the air inlet all the way, and the breather operation, interlock take out side air butterfly valve (first air butterfly valve promptly) and open, and the air is taken out in the well. If combustible gas is detected to alarm, the air butterfly valve (namely the second air butterfly valve) at the blocking inlet side is closed, so that a large amount of oxygen entering the well in a short time is prevented from exploding. When the detection of the combustible gas is reduced to a safe range, the inlet side air butterfly valve is opened, and the ventilation speed is increased. Until the detector displays that the oxygen content reaches the standard, the combustible gas value reaches the standard, and personnel can enter.

The utility model discloses the device can divide into the mode of taking a breath (before personnel get into airtight space), ventilation mode (during staff's operation). The ventilation mode fan has higher rotating speed and large ventilation quantity. The ventilation mode fan has low rotating speed, and the air quality of the working environment of workers is ensured.

The utility model discloses novelty: the device is a comprehensive safety protection device integrating detection, alarm and automatic interlocking, and is suitable for places without power supply.

The utility model discloses creativity: adopt tinfoil air pipe, anti-static axial fan blade, detecting element interlocking protection are synthesized integratively, and safe explosion-proof conveniently carries, easy operation's characteristics adopts the two-way drive fan of unipolar.

The utility model discloses the practicality: the safety accident caused by the occurrence of the trade entry of personnel is avoided before the frequent underground work or other long-term closed space operation of the electric industry and mining enterprises, the municipal administration and the like.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. A portable enclosure ventilation device, comprising: the air pipe comprises an air inlet pipe (2) and an air outlet pipe (1), one end of the air inlet pipe (2) and one end of the air outlet pipe (1) are placed at the bottom of the closed space in the using process, the other end of the air inlet pipe (2) is connected with the fan (5), and the fan (5) is placed outside the closed space;

a first air butterfly valve (4) is arranged on a pipe section, close to the fan (5), of the air inlet pipe (2); a second air butterfly valve (3) is arranged on a pipe section, close to the fan (5), of the air outlet pipeline (1);

the gas detection unit (7) is installed at the bottom of the air inlet pipeline (2) and used for detecting the concentrations of combustible gas, oxygen, carbon monoxide gas and carbon dioxide gas in the closed space; the gas detection unit (7) is further connected with an alarm (8), and the alarm (8) is placed outside the closed space.

2. A portable closed space ventilator as set forth in claim 1 in which said ventilation duct is a folded duct of tinfoil material.

3. A portable closed space ventilation device as claimed in claim 2, wherein the ventilation duct has a diameter of 20 to 30mm.

4. A portable air-exchange device for closed spaces, according to claim 1, characterized in that said fan (5) is an axial fan, the casing of which is made of aluminum alloy, and the blades of the fan (5) are made of antistatic material.

5. A portable enclosed space air exchange device according to claim 1 or 4, wherein said fan (5) is a single shaft bi-directional driven fan.

6. A portable closed space air-changing device according to claim 5, wherein said fan (5) is driven by a driving device (6), the driving device (6) is assembled and is provided with a driving motor and a pedal driving device; when the work place has continuous power supply, the driving motor is adopted to drive the fan (5), and when the work place has no continuous power supply or the work place has no continuous power supply, the pedal type driving device is adopted to drive the fan (5).

7. The portable enclosed space air exchange device of claim 6, wherein the drive motor is a single shaft dual drive motor.

8. A portable closed space ventilation device according to claim 1, wherein the gas detection unit (7) comprises a combustible gas detector, an oxygen content detector, a carbon monoxide detector and a carbon dioxide detector.

9. A portable closed space ventilator as claimed in claim 1 in which said alarm (8) has a front panel on which is provided a display screen (81) and a plurality of alarm indicator lights (82).