CN108731368B

CN108731368B - Gas emission device and chemical reagent freezer thereof

Info

Publication number: CN108731368B
Application number: CN201810533186.5A
Authority: CN
Inventors: 陈文举
Original assignee: Hunan Yuntian Detection Technology Co ltd
Current assignee: Hunan Yuntian Detection Technology Co ltd
Priority date: 2018-05-29
Filing date: 2018-05-29
Publication date: 2020-10-09
Anticipated expiration: 2038-05-29
Also published as: CN108731368A

Abstract

The invention belongs to the technical field of exhaust, and discloses a gas discharge device and a chemical reagent refrigerated cabinet thereof, wherein the gas discharge device is arranged on a gas source device needing to discharge gas, the gas source device is provided with at least one openable device door and comprises a protective cover, the protective cover comprises a fixed cover body and at least one openable air extraction room door arranged at a position corresponding to the device door, and an air extraction space is formed among the fixed cover body, the air extraction room door and the outer surface of the gas source device; the bottom of the protective cover is provided with a through hole as an air inlet, the top of the protective cover is provided with a through hole as an air outlet, and the air outlet is provided with an air exhaust device for exhausting air in the air exhaust space; the air exhaust device is connected with the electric control system through signals, and the electric control system can control the air exhaust device to work when the device door is opened. When the device door is opened, the electric control system controls the air draft device to work to discharge peculiar smell or harmful gas in the air exhaust space completely, and the physical and mental health of a user is protected.

Description

Gas emission device and chemical reagent freezer thereof

Technical Field

The invention relates to the technical field of gas emission, in particular to a gas emission device and a chemical reagent refrigerator thereof.

Background

Chemical reagents, inflammable products or toxic products and the like often have a plurality of problems during storage, pungent or flammable or toxic and harmful gases can volatilize or leak, and serious consequences of poisoning or spontaneous combustion or explosion can be easily generated when the gas concentration is too high.

Disclosure of Invention

The invention solves the technical problem of overcoming the defects of the prior art and provides a safe and reliable gas discharge device which can discharge gas in time and has high discharge efficiency.

The invention also provides a chemical reagent refrigerator with the gas discharge device.

The purpose of the invention is realized by the following technical scheme:

a gas discharge device is arranged on a gas source device needing gas discharge, the gas source device is provided with at least one openable device door and comprises a protective cover, the protective cover comprises a fixed cover body and at least one openable air extraction chamber door arranged at a position corresponding to the device door, and an air extraction space is formed among the fixed cover body, the air extraction chamber door and the outer surface of the gas source device; the bottom of the protective cover is provided with a through hole as an air inlet, the top of the protective cover is provided with a through hole as an air outlet, and the air outlet is provided with an air exhaust device for exhausting air in the air exhaust space; the air exhaust device is connected with the electric control system through signals, and the electric control system can control the air exhaust device to work when the device door is opened.

Further, the device door and the air exhaust chamber door are both in a rotating shaft opening and closing mode.

Furthermore, the number of the air extraction chamber doors is equal to that of the device doors, and the positions of the air extraction chamber doors correspond to those of the device doors one by one.

And furthermore, a displacement guide rail horizontally arranged is fixed on the outer surface of the device door, a guide rod matched with the displacement guide rail is inserted in the displacement guide rail, a door handle is hinged to the end part of the guide rod close to the movable end of the device door, a through hole is formed in the air exhaust door for the door handle to be positioned on the outer surface of the air exhaust door through the operation end of the door handle, and the through hole on the air exhaust door is positioned so that the door handle is perpendicular to the device door when the guide rod is positioned at the initial position in the displacement guide rail.

Furthermore, an electric control lock device in signal connection with the electric control system is arranged on the air exhaust chamber door and comprises an electric control lock for executing opening and closing of the air exhaust chamber door.

Furthermore, the electric control lock devices of the air extraction chamber doors are interlocked through an electric control system.

And the electric control lock device further comprises a delay relay, and the delay relay delays the opening of the electric control lock under the signal control of the electric control system.

Furthermore, the gas source device also comprises a double-delay time relay in signal connection with the electric control system and the air exhaust device, and the double-delay time relay can control the air exhaust device to discharge the leaked gas of the gas source device at regular time after the device door and the air exhaust chamber door are both closed.

Furthermore, the air exhaust device runs at half speed in the working process of the double delay time relay.

The chemical reagent refrigerator is provided with the gas discharge device, the gas source device is a refrigerator body, and the device door is a refrigerator door.

Compared with the prior art, the invention has the following beneficial effects:

1) the gas discharge device can be mounted on any gas source device, and the relevant size of the gas discharge device can be changed according to the size of the gas source device, so that the applicability is strong;

2) when the device door is opened and the air exhaust chamber door is not opened, the electric control system controls the air exhaust device to work to exhaust peculiar smell or harmful gas in the air exhaust space completely, and the air exhaust chamber door is equivalent to form a barrier for preventing a user from contacting with the gas;

3) the displacement guide rail, the guide rod and the handle are matched, so that the device can be opened smoothly by simply and mechanically connecting the device door and the air exhaust chamber door, and is simple and reliable;

4) the arrangement of the electric control lock device enhances the automation of the gas discharge device, on one hand, the random opening and closing of the air exhaust chamber door can be avoided, on the other hand, the opening and closing time of the air exhaust chamber door can be accurately controlled through the control of the delay relay, so that the gas in the air exhaust space can be discharged thoroughly, and a user can hardly contact peculiar smell or harmful gas;

5) the electric control lock devices of the air extraction chamber doors are interlocked, so that a section of closed air channel always exists in the air extraction space, and the continuous and smooth extraction and discharge of gas are facilitated;

6) the double delay time relay can control the air exhaust device to discharge the gas leaked by the gas source device at fixed time after the device door and the air exhaust chamber door are both closed;

7) the chemical reagent refrigerated cabinet can ensure that peculiar smell or harmful gas is thoroughly discharged, and protect the physical and mental health of users to the maximum extent.

Drawings

FIG. 1 is a front view of a chemical reagent refrigerated cabinet according to embodiment 1;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;

FIG. 4 is a cross-sectional view taken at C-C of FIG. 1;

FIG. 5 is a schematic view of the cabinet door in FIG. 4 in an open state;

fig. 6 is a schematic structural view of the refrigerating cabinet door and the air extraction chamber door in fig. 4 in a fully open state.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are provided for illustrative purposes only and are not intended to be limiting; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1 to 4, a chemical reagent refrigerator is provided, which includes a refrigerator body 11 and a refrigerator door 12 for opening the refrigerator body, wherein the refrigerator door 12 is connected to the refrigerator body 11 in a manner of opening and closing by a rotating shaft (the same as the hinge opening and closing or hinging), and the refrigerator door 12 is divided into an upper leaf and a lower leaf in this embodiment.

The chemical reagent refrigerated cabinet also comprises a gas emission device which comprises a protective cover 21, wherein the protective cover comprises a fixed cover body 211 and openable air extraction room doors 212 arranged at positions corresponding to the refrigerated cabinet doors 12, and an air extraction space 3 is formed between the fixed cover body 211 and the air extraction room doors 212 and between the outer surfaces of the refrigerated cabinet body 11 (the top and the bottom of the whole fixed cover body and the air extraction room doors are parallel, the bottom of the protective cover extends below the bottom plate of the refrigerated cabinet body, and the top of the protective cover extends above the refrigerated cabinet doors); the bottom of the protective cover 21 is provided with a through hole as an air inlet 213, the top of the protective cover 21 is provided with a through hole as an air outlet 214, and the air outlet 214 is provided with an air draft device for exhausting air in the air exhausting space 3; the refrigerator further comprises an electric control system (not shown), the air draft device is in signal connection with the electric control system, and the electric control system can control the air draft device to work when the refrigerator door 12 is opened.

Specifically, updraft ventilator includes air exhauster 41, is connected with exhaust duct 42 between the gas vent 214 of safety cover and the inlet scoop of air exhauster 41, and the gas that need discharge in the air exhaust space 3 of being convenient for forms an orderly exhaust route, effectively improves gas discharge efficiency.

The both ends of the protection cover 21 of this embodiment are connected on two side walls of the refrigerator body 11 (the connection position is suitable for being close to the door of the refrigerator), wherein the two side walls are respectively connected to form a fixed cover body 211, the air exhaust door 212 is located between the two fixed cover bodies 211, and the air exhaust door 212 is connected with the rotating shaft of the fixed cover body 211 so that the air exhaust door and the door of the refrigerator adopt the same opening and closing mode.

As shown in fig. 4 to 6, a horizontally disposed displacement guide rail 51 is fixed on an outer surface of each refrigerator door 12, a guide rod 52 engaged with the displacement guide rail is inserted into the displacement guide rail 51, a door handle 53 is hinged to an end portion of the guide rod 52 close to a movable end of the refrigerator door, a through hole is formed in the air extraction door 212 to allow the door handle 53 to be located on the outer surface of the air extraction door by allowing an operation end of the door handle to be located, and the through hole on the air extraction door 212 is located to allow the door handle 53 to be perpendicular to the refrigerator door 12 when the guide rod 52 is located at an initial position in.

Displacement guide 51's the structure decision that sets up quantity according to door handle 53, the door handle of this embodiment is U type structure, and the door handle of U type structure is vertical direction and arranges on air extraction room door, two displacement guide about consequently needing to set up on the refrigerator door, and two tip of door handle are articulated with two displacement guide respectively.

The displacement guide rail 51 is arranged close to the end part of the movable end of the refrigerator door as far as possible, so that the hinged position of the door handle is ensured to be infinitely close to the movable end of the refrigerator door, and the refrigerator door 12 can be opened easily without applying too large force to the door handle when the refrigerator door is opened by a user.

Still be equipped with position sensor (not shown) on freezer door 12, position sensor and electrical control system signal connection, its can accurate sensing guides electrical control system to make the instruction that makes the air exhauster work to the displacement change of freezer door, concretely, this position sensor needs the displacement change of sensing freezer door just with the twinkling of an eye of freezer body separation under the drive of door handle and displacement change when freezer door is closed a twinkling of an eye, when freezer door just opened promptly, electrical control system instructs the air exhauster promptly and begins to bleed air to the air exhaust space, when freezer door is closed (air exhaust door can be earlier than freezer door and is closed, air exhaust door this moment certainly is closed), electrical control system instructs the air exhauster again to stop bleeding air to the air exhaust space. Of course, the electrical control system can also completely control the suction fan to continue to work for a while when the refrigerator door is closed until a while after the door is closed, but obviously, such work of the suction fan is not necessary in the case where the door of the suction door is closed.

For avoiding that the non-relevant user opens and shuts at will to door 212 of bleeding, this embodiment is provided with the electric control lock device with electrical control system signal connection on door 212 of bleeding, and the electric control lock device is equipped with the locking structure (need not to show) with electric control lock matched with including being used for carrying out the electric control lock 61 that door 212 of bleeding opened and shut, the fixed cover body 211 with the junction of the door expansion end of bleeding.

The electric control lock devices of the two air pumping chamber doors are interlocked through an electric control system, a user can freely open one air pumping chamber door and cannot open two air pumping chamber doors simultaneously, so that one section of closed air channel (formed by the fixed cover body and the unopened air pumping chamber door) always exists in the air pumping space, and continuous smooth air pumping and discharging are facilitated.

The electric control lock device further comprises a delay relay (not shown), the delay relay enables the electric control lock to be opened in a delayed mode under the signal control of the electric control system, the delay time of the delay relay is usually set to be 1-10 min, and peculiar smell or harmful gas in the air exhaust space can be conveniently and fully exhausted.

Specifically, when the user operates the door handle 53 to open the refrigerator door 12, the electrical control system automatically starts the exhaust fan 41 to operate at full speed to exhaust the peculiar smell or the harmful gas in the air exhaust space 3, and at the same time, the electrical control system also provides an opening signal of the corresponding electric control lock 61 to the delay relay, the delay relay controls the electric control lock to open after the self-set delay time, at this time, the user can open the door handle 53 to the maximum position along the guide rod 52 to open the corresponding air exhaust door 212, and after the user finishes the corresponding work, the user only needs to mechanically operate the door handle to close the air exhaust door 212 and the refrigerator door 12.

When the chemical reagent refrigerator is not operated by a user, in order to further discharge peculiar smell or harmful gas leaked from the door gap of the refrigerator in the air exhaust space in time, the chemical reagent refrigerator is also provided with a double-delay time relay (not shown) in signal connection with an electrical control system and an air exhaust device, and the double-delay time relay can control the exhaust fan 41 to discharge the peculiar smell or the harmful gas in the air exhaust space 3 at regular time after the refrigerator door 12 and the air exhaust door 212 are both closed.

The time of the double delay time relay can be adjusted for 1 s-10 h, which is determined by the properties of chemical reagents.

Therefore, the concentration of the gas in the air-extracting space is generally not large, so that the air extractor 41 is preferably set to operate at half speed during the operation of the double delay time relay, so that the chemical reagent refrigerator can keep low-noise operation, and simultaneously, the sufficient emission of peculiar smell or harmful gas can be completely ensured.

The chemical reagent refrigerated cabinet can automatically control the exhaust fan 41 to work to completely exhaust peculiar smell or harmful gas in the air exhaust space 3 when the refrigerated cabinet door 12 is opened and the air exhaust chamber door 212 is not opened, and the air exhaust chamber door 212 equivalently forms a barrier for preventing a user from contacting with the gas, so that the peculiar smell or the harmful gas can be completely exhausted, and the physical and mental health of the user can be protected to the maximum extent.

It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A gas discharge device is arranged on a gas source device needing gas discharge, the gas source device is provided with at least one openable device door, and the gas discharge device is characterized by comprising a protective cover, the protective cover comprises a fixed cover body and at least one openable air extraction room door arranged at a position corresponding to the device door, and an air extraction space is formed among the fixed cover body, the air extraction room door and the outer surface of the gas source device; the bottom of the protective cover is provided with a through hole as an air inlet, the top of the protective cover is provided with a through hole as an air outlet, and the air outlet is provided with an air exhaust device for exhausting air in the air exhaust space; the air exhaust device is connected with the electric control system through signals, and the electric control system can control the air exhaust device to work when the device door is opened;

the device door and the air exhaust chamber door are both in a rotating shaft opening and closing mode; the number of the air pumping chamber doors is equal to that of the device doors, and the positions of the air pumping chamber doors correspond to those of the device doors one to one;

the device door external surface is fixed with the displacement guide rail that the level set up, and displacement guide rail interpolation is equipped with displacement guide rail complex guide arm, and the guide arm articulates near the tip of device door expansion end has a door handle, is equipped with the through-hole on the door of bleeding room and supplies the door handle to be located the door surface of bleeding room through the operating end that makes the door handle, and the through-hole position on the door of bleeding room is for can making the guide arm door handle and device door perpendicular when being in initial position in the displacement guide rail.

2. The gas discharge apparatus according to claim 1, wherein the air extraction chamber door is provided with an electrically controlled lock means in signal connection with the electrical control system, the electrically controlled lock means including an electrically controlled lock for performing opening and closing of the air extraction chamber door.

3. The gas discharge apparatus according to claim 2, wherein the electrically controlled lock means of the plurality of pumping chamber doors are interlocked by an electrical control system.

4. A gas discharge apparatus according to claim 2 or 3 wherein the electrically controlled lock means further comprises a time delay relay which delays opening of the electrically controlled lock under signal control from the electrical control system.

5. The gas discharge device of claim 1 further comprising a dual delay relay in signal communication with the electrical control system and the exhaust, the dual delay relay controlling the exhaust to discharge gas leaking from the gas source device at a timed rate after both the device door and the exhaust door are closed.

6. The gas discharge apparatus of claim 5, wherein the air draft device is operated at half speed during the operation of the dual delay time relay.

7. A chemical reagent refrigerator is characterized in that the gas discharge device is provided according to any one of claims 1 to 6, the gas source device is a refrigerator body, and the device door is a refrigerator door.