CN212281995U - Fixed negative pressure isolation system - Google Patents
Fixed negative pressure isolation system Download PDFInfo
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- CN212281995U CN212281995U CN202020484483.8U CN202020484483U CN212281995U CN 212281995 U CN212281995 U CN 212281995U CN 202020484483 U CN202020484483 U CN 202020484483U CN 212281995 U CN212281995 U CN 212281995U
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- negative pressure
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- gas collecting
- heat recovery
- isolation system
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Abstract
The utility model discloses a fixed negative pressure isolated system, include the gas collecting channel and the high temperature disinfection room that communicate each other through the air duct, wherein the gas collecting channel is hollow structure, and it has the gas pocket to distribute on its inner wall, install the air exhauster on the air duct, this air exhauster is used for providing the negative pressure to the air duct to collect gas through the gas collecting channel, and send into the high temperature disinfection room in, the high temperature disinfection room disposes firing equipment to be connected with the discharge pipe. Scheme more than adopting to negative pressure form is at the regional isolation space that forms of respiratory disease patient head, to its expired gas centralized processing, for closed cofferdam, the utility model discloses can make the patient be in a relatively open space, be convenient for communicate and exchange, alleviate doctor and patient psychological burden each other, effectively reduce medical personnel infection risk simultaneously, the whole safe environmental protection of system is reliable, specially adapted isolation places such as ordinary ward, family or hotel.
Description
Technical Field
The utility model relates to the field of medical equipment, concretely relates to fixed negative pressure isolation system.
Background
Popular virus's abuse every time still causes the injury to medical staff when causing the influence that can not wear out to the patient, and infected patient is on the shallow of transfer in-process and ambulance, and the in-hospital treatment in-process that reachs the hospital in addition, and medical personnel's infection risk is all very big, for alleviateing or even avoid medical personnel's infection completely, must control the transmission source, utilizes the negative pressure to collect patient's expired gas, is comparatively effectual epidemic prevention means.
The current negative pressure ward has a large space, and the air exhaled by a patient can stay in a room for a long time or can pass through a flight distance of about four meters to enter an air outlet of the room.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a fixed negative pressure isolation system is applicable to negative pressure professional ward to and the temporary isolation places such as ordinary ward or family, unit, hotel, realize the quick collection disinfection of patient's expired gas, effectively reduce medical staff's infection risk etc..
In order to achieve the above purpose, the utility model discloses technical scheme as follows:
the utility model provides a fixed negative pressure isolated system which the key lies in: including the gas collecting channel and the high temperature disinfection room through the mutual intercommunication of air duct, wherein the gas collecting channel is hollow structure, and it has the gas pocket to distribute on its inner wall, install the air exhauster on the air duct, this air exhauster is used for providing the negative pressure to the air duct to collect gas through the gas collecting channel, and send into in the high temperature disinfection room, the high temperature disinfection room disposes firing equipment to be connected with the discharge pipe.
Scheme more than adopting, when air exhauster during operation, the gas collecting channel within range forms a negative pressure region through the gas pocket, and the gas that the patient exhaled is siphoned away fast to discharge through high temperature disinfection, greatly reduced medical personnel's infection risk, the medical personnel of being convenient for simultaneously communicate with patient's communication, alleviate doctor and patient's psychological pressure, and because set up the gas pocket on the outer edge of collecting the cover, be favorable to reducing the influence that the negative pressure suction was breathed to the patient, guarantee that the patient breathes smoothly. In addition, compare other disinfection and sterilization means, adopt high temperature disinfection, need not earlier stage and filter, avoid forming the secondary infection source to can not produce pollution such as ozone, environmental protection more relatively.
Preferably, the method comprises the following steps: the gas guide pipe is provided with a vertically arranged telescopic section, the lower end of the telescopic section is fixedly connected with the gas collecting hood through a ball hinge, a hose communicated with the telescopic section is arranged at the position, close to the end part of the lower end, of the telescopic section, the lower end of the hose is communicated with the inside of the gas collecting hood, and the communication position of the hose is close to the top of the gas collecting hood. By adopting the scheme, the height and the pitching inclination angle of the gas collecting hood can be conveniently adjusted according to the lying height and the posture of a patient, the applicable place of the system is enlarged, the hose is connected to the position, close to the top, of the gas collecting hood, balance of air pressure at each air hole is guaranteed, sealing performance and reliability of a negative pressure area are guaranteed, and the air pressure weak area is prevented from being formed, so that gas in the range is prevented from overflowing.
Preferably, the method comprises the following steps: the thickness of the hollow inner cavity of the gas-collecting hood is gradually reduced along the direction far away from the top of the hollow inner cavity. By adopting the scheme, after gas enters the hollow inner cavity of the gas collecting hood through the gas hole, the space is gradually increased, the gas collecting hood is favorably prevented from forming large negative pressure inside the gas collecting hood, the wall thickness requirement of the gas collecting hood can be relatively reduced, the whole weight is reduced, and the gas collecting hood is light and labor-saving to disassemble and assemble.
Preferably, the method comprises the following steps: the air holes are uniformly distributed along the circumferential direction of the lower part of the inner wall of the gas-collecting hood. By adopting the scheme, the exhaust fan forms an inverted cone-shaped negative pressure space through the air hole during working, and the mouth and the nose of the patient are positioned at the position of relative positive pressure, so that the normal breathing of the patient is guaranteed.
Preferably, the method comprises the following steps: and a check valve is arranged on the air duct and is positioned between the gas-collecting hood and the exhaust fan. By adopting the scheme, the exhaust fan can be used for placing gas to flow back to enter the gas collecting hood after the exhaust fan stops working.
Preferably, the method comprises the following steps: the high-temperature disinfection chamber is internally provided with a circuitous flow passage which is formed by separating through a partition plate, and the heating equipment corresponds to the bending position of the circuitous flow passage. Scheme more than adopting is favorable to improving the space utilization of high temperature disinfection room, ensures that gaseous process long time's high temperature disinfection, guarantees good disinfection effect, and sets up firing equipment in circuitous position, is favorable to guaranteeing heating temperature's reliability, improves the heating effect.
Preferably, the method comprises the following steps: and a temperature detection device is arranged on the discharge pipe at a position close to the high-temperature disinfection chamber. By the scheme, whether the gas is subjected to qualified high-temperature disinfection is judged by detecting the gas temperature at the opening.
Preferably, the method comprises the following steps: and a heat recovery device is arranged at the downstream of the discharge pipe, the heat recovery device comprises a heat recovery chamber communicated with the discharge pipe and a water circulation pipe at least partially positioned in the heat recovery chamber, and the heat recovery chamber is provided with an exhaust pipe. By adopting the scheme, the heat carried by the gas can be recycled, and the heat-collecting device can be used for small-range heating supply or hot water supply and the like.
Preferably, the method comprises the following steps: the communicating positions of the discharge pipe and the exhaust pipe with the heat recovery chamber are respectively positioned at two opposite ends of the heat recovery chamber and have a height difference, and the part of the water circulating pipe positioned in the heat recovery chamber is in a winding and bending shape. By adopting the scheme, the water flowing through the water circulating pipe can be fully heated, and the utilization efficiency of the recovered heat is improved.
Compared with the prior art, the beneficial effects of the utility model are that:
adopt the utility model provides a fixed negative pressure isolated system to negative pressure form forms the isolation space in respiratory disease patient head region, to its expired gas centralized processing, for closed type isolation cabin, the utility model discloses can make the patient be in a relatively open space, be convenient for communicate and exchange, alleviate doctor and patient's psychological burden each other, effectively reduce medical personnel infection risk simultaneously, the whole safe and environment-friendly of system is reliable, specially adapted isolation places such as ordinary ward, family or hotel.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a bottom view of the gas collection enclosure;
fig. 3 is a cross-sectional view of the gas collection enclosure.
Detailed Description
The present invention will be further described with reference to the following examples and accompanying drawings.
Referring to fig. 1 to 3, a fixed negative pressure isolation system mainly includes a gas collecting hood 1 having a substantially fan-shaped structure or a shell-type structure, and a high temperature sterilization chamber 2, wherein the gas collecting hood 1 has a hollow structure and is provided with a hollow inner cavity 11 and is communicated with the high temperature sterilization chamber 2 through a gas duct 3, gas holes 10 are distributed on an inner wall of the gas collecting hood 1, an exhaust fan 4 is arranged along the gas duct 3, when the exhaust fan 4 works, gas in the range of the gas collecting hood 1 can be sucked into the gas duct 3 through the gas holes 10 and sent into the high temperature sterilization chamber 2, the high temperature sterilization chamber 2 is provided with a heating device 20, the heating device 20 works to sterilize the sent gas at a high temperature, and the high temperature sterilization chamber 2 is connected with a discharge pipe 21, the sterilized gas can be discharged through the discharge pipe 21, it should be noted that in this embodiment, the high temperature sterilization is adopted, so as to effectively avoid, and is beneficial to reducing the disinfection cost and the like.
In this application, for ensuring that gas collecting channel 1 is in the use, its position and angle can fully adapt to with patient's gesture, so the air duct 3 has the section at least and is vertical setting, and this section is flexible section 30, can stretch out and draw back as required and adjust, realize the altitude mixture control of gas collecting channel 1, and the lower extreme of flexible section 30 is then through ball hank 5 and gas collecting channel 1 fixed connection, ball hank 5 has certain damping, when external force effect swings gas collecting channel 1 to suitable angle, it can keep this position unchangeable under the damping, the position that the lower extreme of flexible section 30 is close to the tip is equipped with hose 31, hose 31 can adopt the structure of similar metal gooseneck, in order to ensure that gas collecting channel 1 rotates the in-process can not influence the normal work of gas circuit, hose 31's lower extreme and hollow inner chamber 11 intercommunication position are close to the top of gas collecting channel 1.
In this embodiment, the thickness of the hollow inner cavity 11 of the gas collecting channel 1 is gradually reduced along the direction away from the top thereof, after the arrangement, on the premise of ensuring the effective flow area, the gas hole 10 can generate a large negative pressure, which is beneficial to ensuring the negative pressure isolation effect, meanwhile, the gas hole 10 is uniformly distributed along the circumferential direction under the inner wall of the gas collecting channel 1, as shown in fig. 3, the gas hole 10 is close to the lower edge of the gas collecting channel 1, so that a regular inverted cone-shaped negative pressure space can be formed, when the head of a patient is located in the gas hole, the mouth and the nose are located within the positive pressure range, which is beneficial to ensuring the smooth.
The gas guide pipe 3 is provided with a check valve 6, the check valve 6 is positioned between the exhaust fan 4 and the gas collecting hood 1 and is mainly used for preventing gas at the downstream of the exhaust fan 4 from flowing back into the gas collecting hood 1 after the exhaust fan 4 stops working.
To the high temperature disinfection room 2 of limited space, for fully improving the disinfection effect, have in the high temperature disinfection room 2 in this embodiment along its length direction evenly distributed's baffle 22, baffle 22 staggered distribution, form circuitous runner 23 with the space separation of high temperature disinfection room 2, heating equipment 20 adopts the resistance heating structure, and correspond circuitous runner 23's turning position, in order to improve the resistance heating effect, and the position that is close to high temperature disinfection room 2 on discharge pipe 21 is equipped with temperature-detecting device 24, like bayonet thermometer or thermocouple etc. for the real-time temperature of monitoring from high temperature disinfection room 2 exhaust gas, according to the temperature in exit, can tentatively judge whether gas passes through qualified high temperature disinfection.
In order to recycle the heat generated by the high temperature sterilization chamber 2 during operation, the present embodiment is further provided with a heat recovery device 7, as shown in the figure, the heat recovery device 7 mainly comprises a heat recovery chamber 70 connected to the discharge pipe 21, and a water circulation pipe 71 for converting heat, the water circulation pipe 71 is at least partially located in the heat recovery chamber 70, the heat recovery chamber 70 further has an exhaust pipe 72 communicated with the heat recovery chamber 70, when the hot air enters the heat recovery chamber 70 from the discharge pipe 21, i.e. after the hot air exchanges heat with the circulating water in the water circulation pipe 71, the temperature of the air gradually decreases, and the temperature of the circulating water gradually increases, the circulating water with the increased temperature can be used for heating or hot water.
On the basis, the part of the water circulation pipe 71 located in the heat recovery chamber 70 in the embodiment is bent in a winding way, and the purpose of the bent part is to fully utilize the limited space of the heat recovery chamber 70, increase the contact area between the water circulation pipe 71 and the hot air, and facilitate the improvement of the heat recovery efficiency, and meanwhile, the exhaust pipe 21 and the exhaust pipe 72 are arranged at the two opposite ends of the heat recovery chamber 70, and the relative position of the exhaust pipe 72 is higher than that of the exhaust pipe 71, so as to increase the residence time of the hot air in the heat recovery chamber 70.
Referring to the fixed negative pressure isolation system shown in fig. 1 to 3, the fixed negative pressure isolation system is fixedly installed according to the position of a sickbed, is connected with a corresponding water circulation pipeline, and the like, the height and the angle of the gas collecting hood 1 are adjusted, the fixed negative pressure isolation system mainly works through the exhaust fan 4 during working, an invisible negative pressure isolation space is formed in the range of the gas collecting hood 1, the wind speed of the exhaust fan 4 is controlled to be 0.3-0.5m/s, the fact that the wind speed is higher than the normal expiratory pressure of a human body and lower than the inspiratory pressure of the human body is ensured, the air exhaled by a patient can be completely collected without leakage, and the influence on the inspiration of the patient is avoided.
The air of collecting gets into in the high temperature disinfection room 2 by high temperature sterilization, certainly, can set up multiple disinfection structure as required, relatively speaking, high temperature disinfection cost is lower, and the effect is better, and the steam after accomplishing the disinfection gets into during hot room 70 that returns, accomplishes the heat exchange with the water in the water circulating pipe 71, realizes thermal recycle, reduces energy waste, also satisfies environmental protection emission requirement etc. more simultaneously.
Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.
Claims (9)
1. The utility model provides a fixed negative pressure isolated system which characterized in that: including gas collecting channel (1) and high temperature disinfection room (2) through air duct (3) intercommunication each other, wherein gas collecting channel (1) is hollow structure, and it has gas pocket (10) to distribute on its inner wall, install air exhauster (4) on air duct (3), this air exhauster (4) are used for providing the negative pressure to air duct (3) to collect gas through gas collecting channel (1), and send into in high temperature disinfection room (2), high temperature disinfection room (2) dispose firing equipment (20) to be connected with discharge pipe (21).
2. The stationary negative pressure isolation system of claim 1, wherein: the gas-guide tube (3) has the flexible section (30) of vertical setting, flexible section (30) lower extreme passes through ball hank (5) and gas collecting channel (1) fixed connection, and flexible section (30) are close to the position of lower extreme tip and have hose (31) rather than the intercommunication, hose (31) lower extreme and gas collecting channel (1) inside intercommunication, and its intercommunication position is close to the top of gas collecting channel (1).
3. The stationary negative pressure isolation system of claim 1, wherein: the thickness of the hollow inner cavity of the gas collecting hood (1) is gradually reduced along the direction far away from the top of the gas collecting hood.
4. The stationary negative pressure isolation system of claim 1 or 3, wherein: the air holes (10) are uniformly distributed along the circumferential direction under the inner wall of the gas-collecting hood (1).
5. The stationary negative pressure isolation system of claim 1, wherein: and a check valve (6) is arranged on the air duct (3), and the check valve (6) is positioned between the gas collecting hood (1) and the exhaust fan (4).
6. The stationary negative pressure isolation system of claim 1, wherein: the high-temperature disinfection chamber (2) is internally provided with a circuitous flow passage (23) which is formed by separating through a partition plate (22), and the heating device (20) corresponds to the bending position of the circuitous flow passage (23).
7. The stationary negative pressure isolation system of claim 1, wherein: and a temperature detection device (24) is arranged on the discharge pipe (21) and is close to the high-temperature disinfection chamber (2).
8. The stationary negative pressure isolation system of claim 1, wherein: a heat recovery device (7) is arranged at the downstream of the discharge pipe (21), the heat recovery device (7) comprises a heat recovery chamber (70) communicated with the discharge pipe (21) and a water circulation pipe (71) at least partially positioned in the heat recovery chamber (70), and the heat recovery chamber (70) is provided with an exhaust pipe (72).
9. The stationary negative pressure isolation system of claim 8, wherein: the communication positions of the discharge pipe (21) and the exhaust pipe (72) with the heat recovery chamber (70) are respectively positioned at two opposite ends of the heat recovery chamber (70) and have a height difference, and the part of the water circulating pipe (71) positioned in the heat recovery chamber (70) is in a winding bending shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020484483.8U CN212281995U (en) | 2020-04-03 | 2020-04-03 | Fixed negative pressure isolation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020484483.8U CN212281995U (en) | 2020-04-03 | 2020-04-03 | Fixed negative pressure isolation system |
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| CN212281995U true CN212281995U (en) | 2021-01-05 |
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| CN202020484483.8U Active CN212281995U (en) | 2020-04-03 | 2020-04-03 | Fixed negative pressure isolation system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028562A (en) * | 2021-03-15 | 2021-06-25 | 华北电力大学（保定） | Air filtering structure for negative pressure isolation tent |
| CN113262111A (en) * | 2021-07-02 | 2021-08-17 | 呼研所生物安全科技(广州)股份有限公司 | Isolation chair for respiratory infection source |
| CN114251766A (en) * | 2021-12-30 | 2022-03-29 | 郑州大学综合设计研究院有限公司 | Intelligent fresh air system suitable for hospital and control method |
| CN114291269A (en) * | 2022-01-25 | 2022-04-08 | 中国商用飞机有限责任公司 | Negative pressure isolation system for vehicle cabin |
-
2020
- 2020-04-03 CN CN202020484483.8U patent/CN212281995U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113028562A (en) * | 2021-03-15 | 2021-06-25 | 华北电力大学（保定） | Air filtering structure for negative pressure isolation tent |
| CN113028562B (en) * | 2021-03-15 | 2022-03-11 | 华北电力大学（保定） | Air filtering structure for negative pressure isolation tent |
| CN113262111A (en) * | 2021-07-02 | 2021-08-17 | 呼研所生物安全科技(广州)股份有限公司 | Isolation chair for respiratory infection source |
| CN114251766A (en) * | 2021-12-30 | 2022-03-29 | 郑州大学综合设计研究院有限公司 | Intelligent fresh air system suitable for hospital and control method |
| CN114251766B (en) * | 2021-12-30 | 2024-01-30 | 郑州大学综合设计研究院有限公司 | Intelligent fresh air system suitable for hospitals and control method |
| CN114291269A (en) * | 2022-01-25 | 2022-04-08 | 中国商用飞机有限责任公司 | Negative pressure isolation system for vehicle cabin |
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