Internal and external gas circulation system of sterilization box

Abstract

The gas internal and external circulation system comprises a box body, a gas inlet pump and a gas outlet pump, the box body is provided with an inner cavity, a gas inlet and a gas outlet are formed in the two sides, close to an opening of the inner cavity, of one side wall of the inner cavity, two surrounding covers are arranged on the outer side wall of the box body, and the gas inlet and the gas outlet are covered with the two surrounding covers respectively; the two enclosures are respectively communicated with an air inlet pump and an air outlet pump; an inner circulation air pipe is arranged between the air outlet end of the air inlet pump and the air inlet end of the air outlet pump, a first electromagnetic valve is arranged on the inner circulation air pipe, and a second electromagnetic valve is arranged between the inner circulation air pipe and the air inlet end of the air outlet pump. And when the first electromagnetic valve is closed, the second electromagnetic valve is opened and the air inlet pump and the air outlet pump work simultaneously, the inner cavity of the box body is in a gas internal circulation state.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the sterilization box equipment technical field, concretely relates to a gas internal and external circulation system of sterilization box. BACKGROUND

[0002] In the existing sterilization box, it is necessary to set up the gas internal and external circulation system in the inside, only in this way can guarantee that the sterilizing agent is distributed to every corner of the inside cavity of the sterilization box, there is a container type large sterilization box on the market, the wall thickness is small and the body is large, adopt the mode that sets up the inlet and outlet gas holes and cooperates with the gas pipe to realize the gas internal and external circulation, cannot be applicable to this large sterilization box, the gas pipe is not good to install and the gas internal and external circulation effect is not good, in view of this, the present scheme is generated. UTILITY MODEL CONTENTS

[0003] In view of the deficiency of prior art, the utility model wants to solve the technical problem to provide a gas internal and external circulation system of sterilization box, it internal and external circulation effect is good and is applicable to the sterilization box of container type.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme that a gas internal and external circulation system of sterilization box, including the box, intake pump and outlet pump, the box has the inside cavity, the inside cavity one side wall is close to the both sides of inside cavity opening and forms the gas inlet and gas outlet, the box outside wall is provided with two shrouds, two shrouds are covered with the gas inlet and gas outlet respectively;Two shrouds are connected with intake pump and outlet pump respectively;The outlet end of intake pump and the intake end of outlet pump are provided with internal circulation gas pipe, the first solenoid valve is arranged on the internal circulation gas pipe, the second solenoid valve is arranged between the internal circulation gas pipe and the intake end of outlet pump.

[0005] Further, the gas inlet and gas outlet are provided with a flow guide frame at the opening of the inside cavity, and the flow guide frame opening faces the inlet or outlet of the box.

[0006] Further, the number of gas inlets is two and is located on the corresponding two side walls of the box, and the two shrouds surrounding the gas inlets are connected by a first communication pipe, the number of gas outlets is two and is located on the corresponding two side walls of the box, and the two shrouds surrounding the gas outlets are connected by a second communication pipe, and the intake pump and the outlet pump are connected with the first communication pipe and the second communication pipe respectively.

[0007] Further, the gas internal and external circulation system further comprises a purification tank, the purification tank is located between the intake pump and the first communication pipe, the intake end of the purification tank is communicated with the intake pump, the outlet end of the purification tank is communicated with the first communication pipe, and the purification tank is used for purifying the gas entering the intake pump.

[0008] Further, the purification box comprises a box body and a plurality of activated carbon plug-in plates, the box body is internally provided with a plurality of installation cavities which are arranged at intervals, a plurality of plug-in holes are arranged above the installation cavities, the activated carbon plug-in plates are inserted into the installation cavities through the plug-in holes, a gas inlet is arranged on one side of the installation cavities, a transition cavity is arranged on the other side of the installation cavities, a gas outlet is arranged above the transition cavity, and the installation cavities and the transition cavity are communicated with each other.

[0009] Further, the activated carbon plug-in plate comprises a base, a handle and an activated carbon plate, the upper surface of the base is fixedly connected with the handle, the lower surface of the base is fixedly connected with the activated carbon plate, a limiting step is formed between the plug-in hole and the installation cavity, and the base is located in the plug-in hole and is attached to the upper surface of the limiting step.

[0010] Further, the base and the limiting step are sealingly connected.

[0011] Further, the inner circulation gas pipe is provided with a one-way air inlet valve.

[0012] Compared with the prior art, the utility model has the advantages of the following:

[0013] The utility model discloses a box body side wall is equipped with the gas inlet and the gas outlet, then the gas inlet and the gas outlet are located the opening of the box body outer side wall with the enclosure cover and then the two enclosures are communicated with the gas inlet pump and the gas outlet pump, solve the problem that the box body side wall is thin and cannot be directly connected with the gas pipe, when the first solenoid valve opens, the second solenoid valve closes, the gas inlet pump works, the box body inner cavity is in the gas internal circulation state, when the internal circulation state, need real -time detection the gas pressure of the box body inside, when the gas pressure is not in the rated value, the second solenoid valve opens and releases pressure, when the first solenoid valve closes, the second solenoid valve opens, the gas inlet pump and the gas outlet pump work simultaneously, and the box body inner cavity is in the gas external circulation state. ACCOUT OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model one kind sterilization box's gas internal and external circulation system;

[0015] Figure 2 It is another direction three-dimensional structure schematic diagram of the utility model;

[0016] Figure 3 It is the horizontal section structure schematic diagram of the box body of the utility model;

[0017] Figure 4 It is the section structure schematic diagram of the gas inlet position of the box body of the utility model;

[0018] Figure 5 It is the section structure schematic diagram of the gas outlet position of the box body of the utility model;

[0019] Figure 6 It is cross section structure schematic view of the utility model purification box.

[0020] Marked in the figure: 1, box; 11, gas outlet; 12, gas inlet; 13, shroud; 14, flow guide frame; 2, purification box; 21, box body; 211, installation chamber; 212, transition chamber; 213, jack; 214, limiting step; 22, activated carbon plugboard; 221, base; 222, handle; 223, activated carbon plate; 3, gas inlet pump; 4, gas outlet pump; 5, first communication pipe; 6, second communication pipe; 7, first pipeline; 8, second pipeline; 9, third pipeline; 91, second electromagnetic valve; 10, internal circulation air pipe; 101, first electromagnetic valve. DETAILED DESCRIPTION

[0021] In order to make the above features and advantages of the utility model more obvious and easy to understand, the following specific examples are described in detail as follows with the aid of the accompanying drawings.

[0022] As Figures 1-6 Indicated, the embodiment provides a sterilization box gas internal and external circulation system, including box 1, purification box 2, gas inlet pump 3 and gas outlet pump 4.

[0023] Box 1 has inner cavity, and the inner cavity both sides are provided with switch door, and the inner cavity is provided with air pressure detector, and the air pressure detector adopts the detector commonly used in prior art, which will not be described here. The two side walls of the inner cavity are formed with gas inlet 12 and gas outlet 11 respectively near the two sides of the inner cavity opening, and the gas inlet 12 and the gas outlet 11 are in strip shape, and the same side outer wall of the box 1 is provided with two shrouds 13, and the two shrouds 13 are respectively covered with the gas inlet 12 and the gas outlet 11, and the gas inlet 12 and the gas outlet 11 are provided with flow guide frame 14 at the opening of the inner cavity, and the flow guide frame 14 opening is towards the inlet or outlet of the box 1, and the airflow flowing direction in the box 1 is as shown in Figure 3 .

[0024] Another embodiment of the gas inlet 12 and the gas outlet 11, the gas inlet 12 and the gas outlet 11 are circular holes, and the number of the gas inlet 12 and the gas outlet 11 is multiple, and the specific number is set according to the actual situation.

[0025] The two shrouds 13 surrounding the gas inlet 12 are communicated by the first communication pipe 5, and the two shrouds 13 surrounding the gas outlet 11 are communicated by the second communication pipe 6.

[0026] The purification tank 2 is located between the air inlet pump 3 and the first communication pipe 5. Specifically, the air outlet end of the air inlet pump 3 is communicated with the air inlet end of the purification tank 2 through the first pipeline 7, the air outlet end of the purification tank 2 is communicated with the first communication pipe 5 through the second pipeline 8, the air inlet end of the air outlet pump 4 is communicated with the second communication pipe 6 through the third pipeline 9, the first pipeline 7 and the third pipeline 9 are provided with the inner circulation air pipe 10, the inner circulation air pipe 10 is communicated with the first pipeline 7 and the third pipeline 9, the first electromagnetic valve 101 and the one-way air inlet valve are arranged on the inner circulation air pipe 10, the air inlet direction of the one-way air inlet valve is from the air outlet pump 4 to the air inlet pump 3, and the second electromagnetic valve 91 is arranged at the position close to the air outlet end of the air outlet pump 4.

[0027] The purification tank 2 comprises a tank body 21 and a plurality of activated carbon plug-in plates 22, the tank body 21 is provided with a plurality of installation cavities 211 arranged at intervals, a plurality of installation cavities 211 are provided with plug holes 213 above, the activated carbon plug-in plates 22 are inserted into the installation cavities 211 through the plug holes 213, a plurality of installation cavities 211 are provided with air inlets on one side, a plurality of installation cavities 211 are provided with transition cavities 212 on the other side, the transition cavities 212 are provided with air outlets 11 above, a plurality of installation cavities 211 and the transition cavities 212 are communicated with each other, the activated carbon plug-in plate 22 comprises a base 221, a handle 222 and an activated carbon plate 223, the upper surface of the base 221 is fixedly connected with the handle 222, the lower surface of the base 221 is fixedly connected with the activated carbon plate 223, a limiting step 214 is formed between the plug hole 213 and the installation cavity 211, the base 221 is located in the plug hole and abuts against the upper surface of the limiting step 214, the base 221 and the limiting step 214 are sealingly connected, and specifically, the base 221 and the limiting step 214 are sealingly connected through a sealing ring.

[0028] The inner circulation working principle is as follows: the first electromagnetic valve 101 is opened, the second electromagnetic valve 91 is closed, the air inlet pump 3 starts to work, the gas enters from the air inlet pump 3, enters the purification tank 2 through the first pipeline 7, is purified through the activated carbon plug-in plate 22 in the purification tank 2, is discharged into the first communication pipe 5 through the second pipeline 8, enters the inner cavity from the two air inlets 12, is discharged from the air outlet 11, enters the second communication pipe 6, then enters the inner circulation air pipe 10 from the third pipeline 9, and realizes inner circulation from the inner circulation air pipe 10 to the first pipeline 7. While the inner circulation is realized, it is necessary to pay attention to the air pressure value of the air pressure detector in the inner cavity, when the air pressure value is not within the rated value range, the second electromagnetic valve 91 and the air outlet pump 4 need to be opened to regulate the pressure.

[0029] The outer circulation working principle is as follows: the first electromagnetic valve 101 is closed, the second electromagnetic valve 91 is opened, the air inlet pump 3 and the air outlet pump 4 start to work, the gas enters from the air inlet pump 3, passes through the first pipeline 7 into the purification box 2, is purified through the activated carbon plug-in board 22 in the purification box 2, is discharged into the first communication pipe 5 through the second pipeline 8, enters the inner cavity from the two air inlets 12, is discharged from the air outlet 11, enters the second communication pipe 6, and then enters the air outlet pump 4 through the third pipeline 9 to be discharged.

[0030] The basic principle and main features of the application and the advantages of the utility model are shown and described above, and the skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the application, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A gas internal and external circulation system for a sterilization chamber, characterized by: The utility model provides a gas internal and external circulation system, which comprises a box body, an air inlet pump and an air outlet pump, the box body has an inner cavity, air inlets and air outlets are formed on the two sides of the inner cavity close to the opening of the inner cavity, two shrouds are arranged on the outer wall of the box body, and the two shrouds cover the air inlets and the air outlets respectively, the air inlets and the air outlets are communicated with the air inlet pump and the air outlet pump respectively, an internal circulation air pipe is arranged between the air outlet end of the air inlet pump and the air inlet end of the air outlet pump, a first electromagnetic valve is arranged on the internal circulation air pipe, and a second electromagnetic valve is arranged between the internal circulation air pipe and the air inlet end of the air outlet pump.

2. A system for the internal and external circulation of gases for a sterilization chamber according to claim 1, characterized in that: The air inlets and the air outlets are provided with a flow guide frame at the opening of the inner cavity, and the opening of the flow guide frame faces the inlet or the outlet of the box body.

3. A system for the internal and external circulation of gases for a sterilization chamber according to claim 1, characterized in that: The number of the air inlets is two, the air inlets are arranged on the two opposite side walls of the box body respectively, the two shrouds surrounding the air inlets are communicated through a first communication pipe, the number of the air outlets is two, the air outlets are arranged on the two opposite side walls of the box body respectively, the two shrouds surrounding the air outlets are communicated through a second communication pipe, and the air inlet pump and the air outlet pump are communicated with the first communication pipe and the second communication pipe respectively.

4. A system for the internal and external circulation of gases for a sterilization chamber according to claim 3, characterized in that: The gas internal and external circulation system further comprises a purification box, the purification box is arranged between the air inlet pump and the first communication pipe, the air inlet end of the purification box is communicated with the air inlet pump, the air outlet end of the purification box is communicated with the first communication pipe, and the purification box is used for purifying the gas entering the air inlet pump.

5. A system for the internal and external circulation of gases for a sterilization chamber according to claim 4, characterized in that: The purification box comprises a box body and a plurality of activated carbon plug-in plates, the box body is internally provided with a plurality of mounting cavities arranged at intervals, a plurality of insertion holes are arranged above the mounting cavities, the activated carbon plug-in plates are inserted into the mounting cavities through the insertion holes, an air inlet is arranged on one side of the mounting cavities, a transition cavity is arranged on the other side of the mounting cavities, an air outlet is arranged above the transition cavity, and the mounting cavities and the transition cavity are communicated with each other.

6. A system for the internal and external circulation of gases for a sterilization chamber according to claim 5, characterized in that: The activated carbon plug-in plate comprises a base, a handle and an activated carbon plate, the upper surface of the base is fixedly connected with the handle, the lower surface of the base is fixedly connected with the activated carbon plate, a limiting step is formed between the insertion hole and the mounting cavity, and the base is located in the insertion hole and is attached to the upper surface of the limiting step.

7. A system for the internal and external circulation of gases for a sterilization chamber according to claim 6, characterized in that: The base and the limiting step are sealingly connected.

8. A system for circulating gas into and out of a sterilization chamber according to claim 1, wherein: A one-way air inlet valve is arranged on the internal circulation air pipe.

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