CN111981591A - Negative pressure ward is with purifier that airs exhaust - Google Patents
Negative pressure ward is with purifier that airs exhaust Download PDFInfo
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- CN111981591A CN111981591A CN202010582150.3A CN202010582150A CN111981591A CN 111981591 A CN111981591 A CN 111981591A CN 202010582150 A CN202010582150 A CN 202010582150A CN 111981591 A CN111981591 A CN 111981591A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
- Accommodation For Nursing Or Treatment Tables (AREA)
Abstract
An exhaust purification device for a negative pressure ward comprises a box body, wherein an air inlet pipeline, a filtering system, an exhaust pipeline and an exhaust funnel are arranged in the box body, air in the ward enters the filtering system from an air inlet under the negative pressure effect formed by a fan, and is exhausted through the exhaust funnel after being filtered and purified. The number of the exhaust cylinders is 2, and valves are arranged in the 2 exhaust cylinders. The exhaust purification device of the invention not only can solve the problem of accelerating exhaust under special conditions, but also can select to close the first valve or the second valve for adjusting the air volume according to actual conditions, thereby realizing three modes of full exhaust, partial exhaust and closing, and also can randomly switch the proportion of indoor circulation and exhaust, thereby solving the problem that the purification equipment in the existing market can not freely adjust the air volume.
Description
Technical Field
The invention relates to the field of air purification, in particular to an exhaust purification device for a negative pressure ward.
Background
The negative pressure ward is under a special device, the air pressure in the ward is lower than the air pressure outside the ward, and from the circulation of air, only fresh air outside can flow into the ward, and air polluted by patients in the ward cannot leak out but is timely discharged to a fixed place through a special channel. Thus, the places outside the ward are not polluted, thereby reducing the chance of a large amount of infection of medical staff. The negative pressure ward is particularly suitable for rescuing patients with infectious diseases, and is more suitable for patients with respiratory tract infectious diseases.
The negative pressure isolation ward for infectious diseases mainly has two functions, namely, pathogenic microorganisms are isolated by utilizing the negative pressure principle, and meanwhile, air polluted by patients in the room is discharged after being specially treated, so that the environment is not polluted; secondly, the concentration of pathogenic microorganisms in the ward is diluted through ventilation and reasonable airflow organization, and medical care personnel are in favorable wind direction sections, so that the working safety of the medical care personnel is protected. The negative pressure isolation ward for infectious diseases is generally matched with a set of air supply purification device and a set of air exhaust purification device. The air supply purification device consists of an air supply cabinet and a primary-effect, intermediate-effect and high-efficiency filter device, and the filter efficiency is 99.99%. (the grain diameter is more than or equal to 0.3 mu m). The exhaust purification device consists of an exhaust cabinet and a coarse-effect and medium-effect filter device, and the filter efficiency is 99.99 percent (the particle size is more than or equal to 0.3 mu m).
In actual use, the existing exhaust purification device has some problems, and the existing exhaust purification device cannot meet the requirement of isolating infectious disease negative pressure wards by quickly modifying ordinary wards, apartments, houses, hotels, stadiums and the like in a short time. The most important factor in the negative pressure ward is the formation of negative pressure in the room, the purification of air intake and exhaust, and one of the factors hindering the rapid construction and transformation of the negative pressure ward is the popularization, deployment and installation of the air supply purification device and the air exhaust purification device. The existing exhaust purification device can not meet the requirement of rapid transformation, and is particularly shown in the following steps:
1. the existing exhaust purification device is only provided with 1 exhaust outlet, when more and more patients in a negative pressure ward exist, air inlet and exhaust are accelerated, and more importantly, the existing exhaust purification device is only provided with 1 exhaust outlet and cannot adapt to the condition of sudden increase of the patients. When the patients in the shelter hospital are more and more, the exhaust unit with full load can not accelerate the exhaust and purification.
2. The existing exhaust purification unit lacks an internal circulation. When serious respiratory infectious diseases occur, the purposes of isolating and keeping the indoor air fresh are generally achieved by accelerating the replacement of indoor air and keeping the indoor negative pressure. However, this also presents a challenge to the air filtration system of the air intake system, which can only filter a limited portion of the aerosol viruses, but the air still contains other aerosol viruses, which cannot be filtered by the air filtration system. Air intake is accelerated, so that greater risk is brought to indoor patients, and secondary disasters are caused.
Moreover, the air purifier parts in the exhaust purification device still have the risk of damage, inefficacy under full load work, if the air purifier part became invalid, in case became invalid, the aerosol virus will be directly discharged to the air, brings more disasters.
Therefore, the negative pressure in the room is kept, and the indoor air is effectively filtered to purify the indoor air, so that the method is more significant than accelerating the air replacement amount.
3. The existing exhaust purification device can only select to open or close the valve of the exhaust outlet, the exhaust volume can not be adjusted, and the negative pressure is too large, so that the patient is uncomfortable.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides an exhaust purification device for a negative pressure ward.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a negative pressure ward is with purifier that airs exhaust, includes the box, the box includes roof, bottom plate, panel, curb plate, back plate, the panel andor curb plate bottom are provided with the air inlet, be provided with the fan in the box, still be provided with air inlet pipeline, filtration system and exhaust pipe in the box, be equipped with the aiutage on the roof, the air in the ward gets into filtration system through air inlet pipeline under the negative pressure effect that the fan formed, discharges through exhaust pipe, inflator after the filtration.
The roof is also provided with 2 exhaust cylinders which are respectively a first exhaust cylinder and a second exhaust cylinder, the first exhaust cylinder and the second exhaust cylinder are respectively connected to the filtering system through an exhaust pipeline, air in the ward enters the filtering system through an air inlet pipeline from an air inlet, enters the exhaust pipeline after being filtered and purified, and is then discharged through the first exhaust cylinder and the second exhaust cylinder respectively.
Furthermore, the first exhaust cylinder and the second exhaust cylinder are arranged side by side or diagonally on the top plate. Further, the air inlet is arranged on the panel, and preferably, the air inlet is arranged at the lower part of the panel.
The air inlet can also be arranged on the side plate (103) according to the market and the requirement of the installation environment, and preferably, the air inlet is arranged at the lower part of the side plate. Further, the air inlet can be arranged on two side plates of the box body.
Further, the air inlet can also be arranged on the bottom plate according to the requirements of the market and the installation environment.
Further, still include the return bend, the exhaust stack is inserted to the one end of return bend, and the gap between the outer edge of return bend and the inside wall of exhaust stack is glued sealedly.
Preferably, the first exhaust cylinder and the second exhaust cylinder are both provided with bent pipes.
Aiming at the respiratory infectious disease negative pressure ward, bent pipes are arranged on the first exhaust pipe and the second exhaust pipe, and air inlets are arranged on the bottom plate. In the actual installation process, according to the field installation environment, the bent pipe of one of the first exhaust pipe and the second exhaust pipe can be extended out of the room through a special ventilation pipe of a negative pressure ward, and the bent pipe head of the other exhaust pipe is bent to form an included angle of 10-85 degrees, preferably 45 degrees with the horizontal plane. The air circulation flow in the room can be realized to the greatest extent by the arrangement, and the probability that the air exhausted by the exhaust funnel directly enters the air inlet without indoor circulation is reduced.
Furthermore, the first exhaust cylinder and the second exhaust cylinder are both provided with air volume regulating valves.
The air volume adjusting valve comprises a wind shield, a transmission rod and an adjusting knob; the wind shield is fixedly connected to one end of the transmission rod, and the adjusting knob is fixedly connected to the other end of the transmission rod;
the first exhaust cylinder and the second exhaust cylinder are both provided with pipelines, and the inner wall of each pipeline is provided with internal threads; the outer side wall of the transmission rod is provided with an external thread, and the internal thread on the inner wall of the pipeline is matched with the external thread on the outer side wall of the transmission rod.
The end of the wind shield is also provided with a rotary supporting rod, the inner wall of the exhaust funnel is provided with a supporting seat at the position right facing the pipeline, and the rotary supporting rod is embedded into the supporting seat for rotating.
The wind shield is circular, and the inner section of the exhaust funnel is circular; the area of the wind shield is smaller than the area of the inner section of the exhaust barrel; and flexible sealing rubber strips used for ensuring the sealing of the edge of the wind shield and the joint of the exhaust funnel are arranged at the edge of the wind shield.
Furthermore, a blocking block is arranged on the inner wall of the exhaust funnel.
Further, the internal thread on the inner wall of the pipeline and the external thread on the outer side wall of the transmission rod are tightly attached to each other.
Furthermore, the outer side wall of the transmission rod is also provided with a fastening nut, and the fastening nut is matched with the thread on the outer side wall of the transmission rod.
Preferably, the top end of the air outlet cylinder is connected with an air outlet pipe, the air outlet pipe is in an inverted L shape, and the corner of the air outlet pipe is in an arc shape.
Preferably, the top end of the air outlet pipe is open towards the diagonal direction of the air inlet.
Compared with the prior art, the invention has the beneficial effects that:
1. the technical prejudice is overcome, and the new problems encountered under the emergency are solved. It is generally considered that it is unnecessary to use 2 exhaust ducts on the negative pressure exhaust unit, which is a waste and increases the cost. However, the design of 2 exhaust pipes of the invention can solve the problem that the exhaust needs to be accelerated due to sudden increase of patients in emergency.
2. One of the 2 exhaust pipes is used as an external circulation exhaust pipe for purifying indoor air and then exhausting the indoor air to the outside, and the other exhaust pipe is used as an internal circulation exhaust pipe for circularly exhausting the indoor air to the inside after being purified. Furthermore, the exhaust volume of the two exhaust pipes can be adjusted through the adjusting valve, under the general condition, one fourth of air is exhausted by the outer circulation exhaust pipe, and three fourths of air exhausted by the inner circulation exhaust pipe enters the inner circulation, so that on one hand, the requirement of air inflow is reduced, the service life of the air purifier of the air intake system is prolonged, and the probability that other viruses (viruses which cannot be filtered by the air purifier) in outdoor air enter the room is reduced; on the other hand, the amount of discharged air is reduced, and secondary disasters caused by failure of the air purification unit of the air exhaust unit are reduced. In addition, partial indoor circulation can effectively adsorb indoor bacteria-carrying particles, and the small part of the indoor air exhaust outwards can make the indoor negative pressure and the exhausted air in a sterile state; the indoor circulating air purifier, partial indoor circulating air purifying part air exhaust unit and full air exhaust negative pressure unit can be switched, and the switching process is convenient and fast.
3. The valve of the air outlet can be opened or closed, the air outlet volume is adjusted, and the air volume of the air outlet or the air outlet can be adjusted according to the indoor air purification condition. The valve for adjusting the air volume can be selectively closed according to actual conditions, the proportion of indoor circulation and air exhaust can be switched at will, the problem that the purifying equipment cannot freely selectively close one of the air outlets in the existing market is solved, and the operation is convenient.
4. The air outlet of the air exhaust purification device is arranged at the upper part of the air exhaust unit, the opening of the air exhaust purification device is upward, and when the air exhaust purification device is used as an indoor circulating air outlet, purified air is dispersed from the top of a house to the periphery, so that the effect is better. On the one hand, the air outlet of the purification device is arranged above, the air inlet is arranged below, unpurified air enters from the air inlet below, purified air comes out from the air outlet, good air circulation can be formed indoors, an ideal air purification effect is achieved, and the indoor overall air quality is improved. On the other hand, the purified air has certain fluidity, so that the air is blown from top to bottom, the floating of the indoor aerosol viruses is effectively inhibited, and the probability of respiratory tract infection of indoor medical staff is reduced.
Drawings
FIG. 1 is a schematic view of the structure of an exhaust purification device for a negative pressure ward;
FIG. 2 is a schematic view of the structure of an exhaust duct equipped with a regulating valve;
FIG. 3 is a perspective sectional structural view of an exhaust funnel;
FIG. 4 is a schematic view of the regulator valve;
FIG. 5 is a cross-sectional structural view of the windshield;
FIG. 6 is a schematic view showing the structure of an air discharge duct equipped with an adjusting valve according to another embodiment;
FIG. 7 is a schematic view showing the structure of an air discharge purification apparatus for a negative pressure ward in which an air inlet is provided at the bottom of a cabinet in accordance with embodiment 2;
fig. 8 is a using state diagram of the air exhaust purification device for the negative pressure ward of the invention.
Detailed Description
In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.
Example 1: as shown in fig. 1, the present invention provides an exhaust purification device for a negative pressure ward, which comprises a box 100, wherein the box 100 comprises a top plate 101, a panel 102, a side plate 103, and a back plate 104, an air inlet 105 is arranged at the bottom of the panel 102 and/or the side plate 103, a fan is arranged in the box 100, an air inlet pipeline, a filtering system, and an exhaust pipeline are also arranged in the box 100, an exhaust funnel 200 is arranged on the top plate 101, air in the ward enters the filtering system from the air inlet 105 through the air inlet pipeline under the negative pressure effect formed by the fan, and is exhausted through the exhaust pipeline and the exhaust funnel after being filtered and purified, and the exhaust purification device is characterized in that: the top plate 101 is further provided with 2 exhaust hoods which are respectively a first exhaust hood 201 and a second exhaust hood 202, the first exhaust hood 201 and the second exhaust hood 202 are respectively connected to the filtering system through an exhaust pipeline, air in a ward enters the filtering system from the air inlet 105 through an air inlet pipeline, enters the exhaust pipeline after being filtered and purified, and is then respectively exhausted through the first exhaust hood 201 and the second exhaust hood 202.
It is generally considered that it is unnecessary to use 2 exhaust ducts on the negative pressure exhaust unit, which is a waste and increases the cost. However, the invention designs the first exhaust cylinder 201 and the second exhaust cylinder 202, 2 exhaust cylinders, when the number of patients suffering from respiratory infectious diseases increases suddenly, the negative pressure isolation ward needs to accelerate the exhaust, and the first exhaust cylinder 201 and the second exhaust cylinder 202 can be opened simultaneously to accelerate the exhaust and accelerate the air purification in the room.
In the invention, one of the 2 exhaust cylinders, namely the first exhaust cylinder 201 and the second exhaust cylinder 202, is used as an external circulation exhaust cylinder to purify indoor air and then exhaust the indoor air to the outside, the other exhaust cylinder is used as an internal circulation exhaust cylinder, and the indoor air is purified and then circularly exhausted to the indoor through the internal circulation exhaust cylinder. Partial indoor circulation can effectively adsorb indoor bacteria-carrying particles, and the small part of the indoor air exhaust outwards can make the indoor negative pressure and the exhausted air in a sterile state.
Further, the first exhaust cylinder 201 and the second exhaust cylinder 202 are disposed side by side or diagonally on the top plate 101.
The first exhaust pipe 201 and the second exhaust pipe 202 of the exhaust purification device of the present invention are disposed on the top of the top plate 101, the openings are upward, and the second exhaust pipe 202 is used as an indoor circulating exhaust outlet, for example, because the openings are upward, further, the second exhaust pipe 202 is further provided with an extension pipe, which is a flexible pipe with a certain shape. The air after purifying disperses around from the top of house, and on the one hand, purifier's air outlet is above, and the air inlet is in the below, and unpurified air gets into from the air inlet below, and the air that has purified comes out from the air outlet, can form fine air cycle indoor, reaches ideal air purification effect, improves indoor whole air quality. On the other hand, the purified air has certain fluidity, so that the air is blown from top to bottom, the floating of the indoor aerosol viruses is effectively inhibited, and the probability of respiratory tract infection of indoor medical staff is reduced.
Further, the exhaust funnel comprises an elbow pipe 300, one end of the elbow pipe 300 is connected to the exhaust funnel 200, and a gap between the outer edge of the elbow pipe 300 and the inner side wall of the exhaust funnel 200 is sealed by glue. The other end of the elbow 300 extends out of a strong hole reserved or excavated in the wall body, and the exhausted gas is exhausted through the elbow.
Further, the first exhaust cylinder 201 and the second exhaust cylinder 202 are both provided with air volume adjusting valves 400. The design of the two exhaust cylinders of the first exhaust cylinder 201 and the second exhaust cylinder 202 and the arrangement of the air volume adjusting valve 400 realize three kinds of switching of an indoor circulating air purifier, a partial indoor circulating air purifying partial air exhaust unit and a full air exhaust negative pressure unit, and the switching process is convenient and fast.
The exhaust volume of the two exhaust pipes can be adjusted by adjusting valves. In general, the outer circulation exhaust funnel exhausts one fourth of the air, and the inner circulation exhaust funnel exhausts three fourths of the air into the inner circulation. The air purifier is switched to an indoor circulation mode or a partial indoor circulation mode, so that on one hand, the requirement on air inflow is reduced, the service life of the air purifier of an air inlet system is prolonged, and the probability that other viruses (viruses which cannot be filtered by the air purifier) in outdoor air enter the room is reduced; on the other hand, the amount of discharged air is reduced, and secondary disasters caused by failure of the air purification unit of the air exhaust unit are reduced.
Further, the air volume adjusting valve 400 comprises a wind deflector 401, a transmission rod 402 and an adjusting knob 404; the wind deflector 401 is fixedly connected to one end of the transmission rod 402, and the adjusting knob 404 is fixedly connected to the other end of the transmission rod 402;
the first exhaust cylinder 201 and the second exhaust cylinder 202 are both provided with pipelines 405, and inner threads are arranged on the inner wall of the pipeline 405; the outer side wall of the transmission rod 402 is provided with external threads, and the internal threads on the inner wall of the pipeline 405 and the external threads on the outer side wall of the transmission rod 402 are matched with each other.
Furthermore, the end of the wind shield 401 is further provided with a rotary support rod 406, a support seat 407 is arranged at a position of the inner wall of the exhaust funnel 200, which faces the pipeline 405, and the rotary support rod 406 is embedded into the support seat 407 to rotate. The rotary support rod 406 is embedded into the support base 407, so that the end part of the wind shield 401 is supported, and the problems of deformation and easy breakage of the wind shield are solved.
Further, the wind shield 401 is circular, and the inner section of the exhaust funnel 200 is circular; the area of the wind shield 401 is smaller than the area of the inner section of the exhaust funnel 200 barrel; and a flexible sealing rubber strip 408 for ensuring the sealing of the joint between the edge of the wind shield plate and the exhaust funnel 200 is arranged at the edge of the wind shield plate 401. The sealing rubber strip 408 can ensure that the exhaust funnel 200 does not leak air when the valve 400 is closed. Preferably, the wind deflector 401 is embedded within the bead 4.
Further, a blocking block 409 is further disposed on the inner wall of the exhaust funnel 200.
Preferably, the wind deflector 401 is turned over so that when the lower surface of the edge of the wind deflector 401 contacts the upper surface of the stop block 409, the wind deflector 401 is exactly perpendicular to the longitudinal surface of the exhaust stack 200.
The stop 409 facilitates sensing whether the valve 400 is closed in place.
Further, the internal thread on the inner wall of the pipe 405 and the external thread on the outer side wall of the driving rod 402 are closely fitted to each other. The internal thread on the inner wall of the duct 405 and the external thread on the outer side wall of the transmission rod 402 are tightly attached to each other, so that the transmission rod 402 generates a damping effect, and the wind shield 401 can be prevented from vibrating or rotating due to the impact of wind to a certain extent.
Further, the outer side wall of the transmission rod 402 is also provided with a fastening nut 409, and the fastening nut 409 is matched with the thread on the outer side wall of the transmission rod 402. When the damping effect of the transmission rod 402 is not good, the fastening nut 409 can be screwed to abut against the side wall of the duct 405 by screwing the fastening nut 409, so that the friction force and the tightness are increased, and the fixation of the wind deflector can be realized.
Example 2: as shown in fig. 7, the present embodiment is different from embodiment 1 in that the air inlet 105 is provided in the bottom plate of the case, and the first exhaust cylinder 201 and the second exhaust cylinder 202 are provided with bent pipes.
In the actual installation process, according to the field installation environment, the bent pipe of one of the first exhaust pipe and the second exhaust pipe can be extended out of the room through a special ventilation pipe of a negative pressure ward, and the bent pipe head of the other exhaust pipe is bent to form an included angle of 10-85 degrees, preferably 45 degrees with the horizontal plane. The arrangement can realize the air circulation flow in the room to the maximum extent and reduce the probability that the air discharged by the exhaust funnel directly enters the air inlet 105 without indoor circulation.
Example 3: as shown in figure 8, the exhaust purification device for the negative pressure ward is provided with 2 exhaust hoods, when in use, one exhaust hood discharges to the outside, and one exhaust hood circularly exhausts air indoors. An air volume adjusting valve is respectively arranged in each of 2 exhaust cylinders, and the 2 exhaust cylinders are matched with the 2 valves to realize three modes of full-exhaust, partial-exhaust and closing. Under the condition of full exhaust, closing an air volume regulating valve which discharges to the indoor space; under the condition of partial exhaust, both the two air volume regulating valves are opened, and the proportion of indoor circulation and exhaust air can be switched at will through the regulation of the air volume regulating valves; under the condition of closing, the two air volume adjusting valves are closed. Some rows are normal in operation.
The present invention has been described in relation to the above embodiments, which are only exemplary of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. Rather, it is intended that all such modifications and variations be included within the spirit and scope of this invention.
Claims (10)
1. The utility model provides a negative pressure ward is with purifier that airs exhaust, includes box (100), box (100) are including bottom plate, roof (101), panel (102), curb plate (103), back plate (104), panel (102) and or curb plate (103) bottom are provided with air inlet (105), be provided with the fan in box (100), still be provided with air inlet pipeline, filtration system and exhaust pipe in box (100), be equipped with aiutage (200) on roof (101), air in the ward gets into filtration system through air inlet pipeline from air inlet (105) under the negative pressure effect that the fan formed, and exhaust pipeline, inflator discharge its characterized in that again after the filtration: the roof (101) is further provided with 2 exhaust pipes which are respectively a first exhaust pipe (201) and a second exhaust pipe (202), the first exhaust pipe (201) and the second exhaust pipe (202) are respectively connected to the filtering system through an exhaust pipeline, air in a ward enters the filtering system from an air inlet (105) through an air inlet pipeline, enters the exhaust pipeline after being filtered and purified, and is then respectively exhausted through the first exhaust pipe (201) and the second exhaust pipe (202).
2. The exhaust purification device for the negative pressure ward according to claim 1, characterized in that: the first exhaust cylinder (201) and the second exhaust cylinder (202) are arranged side by side or in a diagonal manner on the top plate, and the air inlet (105) is arranged on the panel (102), or the side plate (103), or the bottom plate.
3. The exhaust purification device for the negative pressure ward according to claim 1, characterized in that: still include the return bend, the one end of return bend inserts aiutage (200), and the gap between the outer edge of return bend and the inside wall of aiutage (200) is glued and is sealed.
4. The exhaust purification device for negative pressure ward according to claim 1, wherein the first exhaust cylinder (201) and the second exhaust cylinder (202) are each provided with an air volume adjusting valve (400).
5. The exhaust purification device for the negative pressure ward according to claim 4, wherein: the air volume adjusting valve (400) comprises a wind shield (401), a transmission rod (402) and an adjusting knob (404); the wind shield (401) is fixedly connected to one end of the transmission rod (402), and the adjusting knob (404) is fixedly connected to the other end of the transmission rod (402);
the first exhaust cylinder (201) and the second exhaust cylinder (202) are both provided with pipelines (405), and inner threads are arranged on the inner wall of each pipeline (405); the outer side wall of the transmission rod (402) is provided with external threads, and the internal threads on the inner wall of the pipeline (405) are matched with the external threads on the outer side wall of the transmission rod (402).
6. The exhaust purification device for the negative pressure ward according to claim 5, wherein: the end part of the wind shield (401) is further provided with a rotary supporting rod (406), a supporting seat (407) is arranged at the position, facing the pipeline (405), of the inner wall of the exhaust funnel (200), and the rotary supporting rod (406) is embedded into the supporting seat (407) to rotate.
7. The exhaust purification device for the negative pressure ward according to claim 5, wherein: the wind shield (401) is circular, and the inner section of the exhaust funnel (200) is circular; the area of the wind shield (401) is smaller than the internal section area of the exhaust funnel (200); and a flexible sealing rubber strip (408) for ensuring the sealing of the joint of the edge of the wind shield and the exhaust funnel (200) is arranged at the edge of the wind shield (401).
8. The exhaust purification device for the negative pressure ward according to claim 1, characterized in that: the inner wall of the exhaust funnel (200) is also provided with a stop block (409).
9. The exhaust purification device for the negative pressure ward according to claim 6, wherein: the internal thread on the inner wall of the pipeline (405) and the external thread on the outer side wall of the transmission rod (402) are tightly attached to each other.
10. The exhaust purification device for the negative pressure ward according to claim 5, wherein: the outer side wall of the transmission rod (402) is further provided with a fastening nut (409), and the fastening nut (409) is matched with the thread on the outer side wall of the transmission rod (402).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010582150.3A CN111981591A (en) | 2020-06-23 | 2020-06-23 | Negative pressure ward is with purifier that airs exhaust |
| CN202110693849.1A CN113218013B (en) | 2020-06-23 | 2021-06-22 | Negative pressure ward exhaust purification system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010582150.3A CN111981591A (en) | 2020-06-23 | 2020-06-23 | Negative pressure ward is with purifier that airs exhaust |
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| CN111981591A true CN111981591A (en) | 2020-11-24 |
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| CN202010582150.3A Pending CN111981591A (en) | 2020-06-23 | 2020-06-23 | Negative pressure ward is with purifier that airs exhaust |
| CN202110693849.1A Active CN113218013B (en) | 2020-06-23 | 2021-06-22 | Negative pressure ward exhaust purification system |
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| CN202110693849.1A Active CN113218013B (en) | 2020-06-23 | 2021-06-22 | Negative pressure ward exhaust purification system |
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| CN113776146A (en) * | 2021-09-09 | 2021-12-10 | 北京城建集团有限责任公司 | Ventilation filtering device for civil air defense engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113218013B (en) | 2022-05-10 |
| CN113218013A (en) | 2021-08-06 |
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