CN106352418A - Fresh air-exhaust air integrated equipment cabinet for fitness room - Google Patents

Abstract

The invention relates to an exhaust and fresh air integrated cabinet for a gymnasium, comprising a first cabinet and a second cabinet. The first cabinet is used for pretreatment of fresh air and heat recovery of the air to be exhausted, and the second cabinet is used for dehumidification and temperature adjustment of fresh air. With this all-in-one cabinet, not only can perform multiple functions independently, such as temperature adjustment, dehumidification, purification and filtration, and air exhaust, but also realize the utilization of waste heat/exhaust cold to achieve energy saving by integrating the fresh air function and air exhaust function In addition, by completely separating the fresh air processing function and the circulating air processing function, the disadvantages of offsetting cold and heat are avoided. The fresh air is deeply dehumidified, and it can be offset when the fresh air volume is small (preferably 1200-1500m ³ /h). The heat and humidity load (including sensible heat and latent heat), in order to prevent condensation, the fresh air is deeply dehumidified, then slightly reheated, and the circulating air treatment only includes the air purification function to meet the cleanliness requirements and achieve significant energy saving effects.

Description

Gym fresh air exhaust integrated cabinet

technical field

The present invention generally relates to the field of medical ventilation facilities, and in particular relates to a gymnasium exhaust and fresh air integrated cabinet.

Background technique

With the improvement of living standards, people pay more and more attention to their own health. One way to stay healthy is to keep exercising. As an ideal place for fitness and exercise, gymnasiums are increasingly favored by people because of their well-equipped equipment and professional coaches. However, how to keep the air in the gym clean, which attracts the majority of consumers in the poor outdoor air, due to the severe pollution in the city, especially chemical pollution such as nitrogen oxides and sulfides, and particulate matter pollution such as PM2. It has become an important issue of common concern for gym operators and consumers to still insist on exercising in the gym.

Secondly, gyms are generally rented venues in buildings. However, buildings generally use central air-conditioning, and the central air-conditioning is generally turned off during off-duty hours and holidays, so that the gym must either pay extra fees to turn on the central air-conditioning, but this will cause Waste of resources; or you must purchase and install large-scale air-conditioning equipment, air purifiers, exhaust fans and other equipment yourself, but this requires high-cost gym reconstruction and requires additional equipment installation space.

Again, the current civil air purification system has a single function, for example, it can only purify the air. If the user needs to perform other tasks such as temperature adjustment, dehumidification, and ventilation, it is necessary to purchase special equipment separately, which not only requires high costs, but also requires a very large installation space.

In addition, most of the current air-conditioning systems use fresh air for centralized processing (dehumidification, temperature adjustment, and filtration), while circulating air (including fresh air and return air) is processed separately in each gym, and the processing methods are divided into "one return air" or "one, one, Second return." "Primary return air" means that all the return air in the gym is mixed with the required fresh air and enters the circulation unit for dehumidification, temperature adjustment and filtration; "Primary and secondary return air" means that part of the return air in the gym is mixed with the required fresh air and enters the circulation The surface cooler of the unit is dehumidified and then mixed with the remaining return air and subjected to conditioning and filtering. The "primary return air" system is simple, but all the return air is dehumidified by the circulation unit and reaches the dew point temperature of the machine (usually lower than 16°C), so it needs to be heated to reach the supply air temperature, resulting in "cold" and "hot" balance , not only wasting cold energy but also consuming heat, which is not very energy-saving. The "primary and secondary return air" system can achieve energy-saving effects, but in order to achieve automatic control, automatic control valves and actuators need to be added, resulting in high failure rates and difficult debugging in practical applications, making it difficult to promote the system.

The technical trend of today's purification air conditioning system is to develop in the direction of energy saving, simple system, and convenient operation and maintenance.

Contents of the invention

Starting from the prior art, the task of the present invention is to provide a gymnasium exhaust and fresh air integrated cabinet, which can not only perform multiple functions independently, such as temperature adjustment, dehumidification, purification and filtration, and air exhaust, but also through the The fresh air function and the exhaust air function are integrated to realize the utilization of waste heat/waste cold to achieve energy saving. In addition, by completely separating the fresh air processing function and the return air processing function, the disadvantages of cold and heat balance are avoided, and the fresh air is deeply dehumidified. And when the fresh air volume is small (preferably 1200-1500m ³ /h), it can offset the heat and humidity load (including sensible heat and latent heat) in the gym. In order to prevent condensation, after deep dehumidification of the fresh air, slightly reheat, return The air treatment only includes the air purification function to meet the cleanliness requirements and achieve significant energy saving effects.

According to the present invention, this task is solved by a gymnasium exhaust and fresh air integrated cabinet, which includes:

· A first cabinet having:

Used to introduce the exhaust air inlet to be exhausted;

Exhaust outlet for exhausting the air to be exhausted;

an exhaust air channel, which connects the exhaust air inlet with the exhaust air outlet for guiding the air to be exhausted;

an exhaust fan, which is arranged between the exhaust inlet and the exhaust outlet in the exhaust passage for guiding the air to be exhausted from the exhaust inlet to the exhaust outlet;

A heat recovery device, which is arranged between the exhaust fan and the exhaust air outlet in the exhaust air passage, and the heat recovery device includes a plate heat exchanger for recovering waste heat or waste cold in the exhaust air;

A fresh air inlet for introducing fresh air, which communicates with the plate heat exchanger for absorbing waste heat or waste cold collected by the plate heat exchanger from the air to be exhausted;

A fresh air pretreatment device, which is arranged at the fresh air inlet for preprocessing the fresh air;

a first fresh air channel, which connects the fresh air inlet with the second cabinet for guiding fresh air from the fresh air inlet to the second cabinet;

a fresh air intake fan, which is arranged behind the heat recovery device in the fresh air flow direction in the first fresh air passage for introducing fresh air into the first cabinet; and

· A second cabinet with:

Fresh air outlet, which is used to send out fresh air;

The second fresh air passage connects the first fresh air passage to the fresh air outlet for guiding the fresh air from the first cabinet to the fresh air outlet;

An indoor unit for air conditioning, which includes a dehumidifier and a heater arranged in the second fresh air passage;

Outdoor units for air conditioners, which include digital variable capacity direct expansion air-cooled units for supplying cooling to dehumidifiers; and

The fresh air outlet fan is used to discharge fresh air from the second cabinet through the fresh air outlet.

According to the gymnasium exhaust and fresh air integrated cabinet of the present invention at least has the following advantages: (1) The gym exhaust and fresh air integrated cabinet integrates the fresh air function, temperature adjustment, dehumidification, purification and exhaust functions in a single integrated cabinet, not only eliminating the central air conditioner, and its modular structure realizes compact shape and convenient installation, thereby reducing equipment cost, installation cost and installation space requirements; That is, the heat recovery device transfers the waste heat or waste cold in the air to be exhausted to the fresh air, so as to realize the energy saving effect; (3) in the gymnasium exhaust and fresh air integrated cabinet according to the present invention, the treatment of the fresh air and the return air Completely separated (that is, the fresh air processor does not process the return air, such as dehumidification, temperature adjustment), can greatly save electric energy. This is because, according to the inventor's unique insight, only a certain amount of fresh air needs to be deeply dehumidified, Air conditioning and purification treatment, and the return air (also known as circulating air) only needs to be purified to maintain the air quality of the gym at an ideal level, because the indoor personnel only slightly increase the indoor humidity and temperature, so this part A small increase in humidity and temperature can be completely offset by the treated fresh air without dehumidification and temperature adjustment of the return air; in this way, not only the electric energy used for dehumidification and temperature adjustment of the return air is saved, but also Since the dehumidification process is all transferred to the integrated cabinet instead of performing the dehumidification function in the return air processor, it also avoids the disadvantage of "cold and hot offset" in the primary return air, and improves the temperature control efficiency.

According to an extension of the present invention, it is stipulated that the first cabinet further includes a chemical filter module arranged between the fresh air inlet and the fresh air intake fan for chemically filtering the fresh air, wherein the chemical filter module includes a medium-efficiency filter layer. In addition, the fresh air pretreatment device arranged at the fresh air inlet may also include a coarse-effect filter layer and a medium-effect filter layer. Through this extension scheme, the large particles of 2.5 μm and 10 μm in the air can be filtered first and the concentration of chemical pollutants (such as NO _x , SO _x , NH ₃ and TVOC) can be reduced, thereby promoting the subsequent fine filtration of fresh air. The chemical filtration module is, for example, a cylindrical structure filled with activated carbon fillers of various formulas.

In a preferred solution of the present invention, it is stipulated that the exhaust and fresh air integrated cabinet of the gymnasium also includes a control module, and the control module is configured to perform at least one of the following actions:

In summer, adjust the supply air temperature of the fresh air to be 1°C-2°C higher than the dew point temperature to prevent condensation and control the room temperature to 26°C and relative humidity to 55%;

In winter, the room temperature was controlled to be 20° C. and the relative humidity was controlled to be 35%.

The dehumidification and temperature adjustment ensure that the gym operates within the scope of "comfortable air conditioning" (summer: temperature 22-28°C, relative humidity 40%-65%; winter: temperature 18-24°C, relative humidity 30%-60%) .

Through this preferred solution, on the one hand, it can prevent condensation from affecting the dehumidification effect, and on the other hand, it can save energy, because the room temperature in winter is 20°C and the relative humidity is 35%, which can not only ensure the comfort in the gym, but also save energy (compared to 26°C and Humidity is 55% compared to energy saving of 10%).

In another preferred solution of the present invention, it is stipulated that 1500 m ³ /h of fresh air is provided for every 200 square meters of the gymnasium or 1500 m ³ /h of fresh air is provided for every 50 people. Through this optimal solution, a perfect balance of comfort and energy saving can be achieved, because according to the research and insight of the inventor, a fresh air volume of 1500m ³ /h can meet the temperature, oxygen content and humidity requirements of a 200 square meter fitness venue or 50 people, Because the fresh air of 1500m ³ /h just takes away the heat and humidity load (including sensible heat and latent heat) of 200 square meters of fitness venues or 50 people, and realizes that the gym can change air every 24 minutes.

In yet another preferred solution of the present invention, it is stipulated that the exhaust and fresh air integrated cabinet of the gymnasium also includes a real-time monitoring system for the gymnasium, and the real-time monitoring system for the gymnasium includes:

a humidity detector configured to detect humidity in the room;

a temperature detector configured to detect a temperature within the room;

a pressure difference detector configured to detect the air pressure difference before and after the fresh air flow passes through the cabinet; and

a dust particle counter probe configured to count dust particles in the air in the room; and

The wireless transmitting unit is configured to wirelessly transmit the measured detection data to the wireless receiving unit.

Through this preferred solution, various air quality parameters in the gym can be monitored in real time, and the life of the filter device can be detected in real time by detecting the pressure difference of the cabinet (if the pressure difference is greater than the threshold value, it indicates that the life of the filter device has been exhausted).

According to another preferred solution of the present invention, it is stipulated that the exhaust and fresh air integrated cabinet of the gymnasium also includes an air quality real-time display device, and the air quality real-time display device is configured to wirelessly receive detection data from the gymnasium real-time monitoring system and display it to the user. Temperature, humidity and/or dust particle count. Through this preferred solution, the current air quality parameters can be displayed to the user in real time.

In yet another preferred solution according to the present invention, it is stipulated that a gravity self-locking damper is respectively arranged in the fresh air inlet and the exhaust air outlet, and the gravity self-locking damper has:

Air plate, the size of which matches the air outlet;

A turning axis, which passes through the wind plate so that the wind plate can turn around the turning axis;

a counterweight, which is arranged at one end of the wind plate, so that the wind plate remains vertical without external force to close the tuyere; and

A stopper is arranged on the top and/or bottom of the air outlet to prevent the wind panel from deflecting in reverse.

Through this preferred solution, each air door can be automatically closed without introducing fresh air or discharging air to be exhausted, thereby effectively preventing pollutants or foreign matter from entering the air duct through the air door to cause pollution or blockage. On the other hand, the stop prevents a reverse deflection of the wind vane.

According to another preferred solution of the present invention, it is stipulated that the exhaust fan, the fresh air inlet fan and the fresh air outlet fan are all equipped with brushless DC motors, wherein the speed of the brushless DC motors is adjustable. Through this preferred solution, on the one hand, energy saving can be realized, because the use of the brushless DC motor can save 30% of electric energy compared with the use of the AC motor. On the other hand, by using a brushless DC motor with adjustable speed, the adjustment of fresh air volume and exhaust air volume can be realized to adapt to different types of cleanliness requirements or different working conditions (such as short-term strong exhaust, adjusting operating parameters when changing seasons) etc.), realize one machine with multiple functions. The power of a single fan is, for example, 150-300W, and its power varies by about 10% as the air volume changes. In addition, it is also feasible to sacrifice part of the energy-saving effect to reduce the number of models. The stepless speed regulation of the brushless DC motor is much simpler than the stepless speed regulation of the AC motor, thus reducing the control cost.

In yet another preferred solution of the present invention, it is stipulated that the fresh air volume and exhaust air volume can be adjusted accordingly. At the same time, by adjusting the circulating air volume, the gym can be switched between different cleanliness and different working conditions.

Description of drawings

The present invention will be further described below with reference to specific embodiments in conjunction with the accompanying drawings.

Fig. 1 shows the internal structure diagram of the gymnasium exhaust and fresh air integrated cabinet according to the present invention;

Fig. 2 shows the view from the A direction of Fig. 1 of the heat recovery device;

Fig. 3 shows the schematic diagram of gravity self-locking damper according to the present invention; And

Fig. 4 shows a schematic diagram of a gym real-time detection system for a gym fresh air exhaust integrated cabinet according to the present invention.

It should be pointed out here that each component in the drawings of the present invention is only shown as an example and not necessarily in correct scale.

detailed description

Fig. 1 shows an internal structure diagram of an exhaust and fresh air integrated cabinet 100 for a gymnasium according to the present invention.

As shown in FIG. 1 , the exhaust and fresh air integrated cabinet 100 in the gym includes a first cabinet 101 and a second cabinet 102 . The first cabinet 101 and the second cabinet 102 can be integrally formed, or formed separately and then assembled.

The first cabinet 101 has an exhaust air inlet 103 for introducing air to be exhausted and an exhaust air outlet 116 for exhausting air to be exhausted. The first cabinet 101 also has an exhaust duct (not shown), which connects the exhaust inlet 103 with the exhaust outlet 116 for guiding the air to be exhausted, wherein the exhaust duct can be a special pipeline or can be formed by The walls of the first cabinet 101 are enclosed. The first cabinet 101 also has an exhaust fan 104 arranged between the exhaust inlet 103 and the exhaust outlet 116 in the exhaust passage for guiding the air to be exhausted from the exhaust inlet 103 to the exhaust outlet 116 . The exhaust fan 104 is preferably equipped with a brushless DC motor whose speed can be adjusted steplessly, so that the exhaust air volume can be adjusted by adjusting the fan speed, thereby adjusting the air pressure in the gym to achieve the desired pressure difference effect.

The first cabinet 101 also has a heat recovery device 106 arranged between the exhaust fan 104 and the exhaust outlet 116 in the exhaust passage. The heat recovery device 106 includes a plate heat exchanger (or honeycomb heat exchanger) for recovering waste heat or waste cold in the exhaust air. The plate heat exchanger includes, for example, a plurality of heat exchange plates 117 arranged perpendicular to each other, so that the air to be exhausted can flow perpendicular to the fresh air direction (see the single arrow in FIG. 1 ) and transfer waste heat or waste cold through the heat exchange plates 117 Give fresh air. The heat exchange plate 117 is made, for example, of a very thin copper plate, but other materials with good thermal conductivity are also conceivable. See FIG. 2 for further details of the heat recovery unit 106 .

The first cabinet 101 also has a fresh air inlet 114 for introducing fresh air, and the fresh air inlet 114 communicates with the heat exchange plate 117 for introducing fresh air into the heat exchange plate 117 . The first cabinet 101 also has a first fresh air channel (not shown), which connects the fresh air inlet with the second cabinet 102 for guiding fresh air from the fresh air inlet 114 to the second cabinet 102 . The first fresh air channel can be a dedicated duct, or can be formed by the wall of the first cabinet. The first cabinet 101 also has a fresh air intake fan 108 , which is arranged behind the heat recovery device 106 in the first fresh air channel in the fresh air flow direction (see arrow in FIG. 1 ) for introducing fresh air into the first cabinet 101 .

The first cabinet 101 also has a fresh air pretreatment device 105 arranged at the fresh air inlet 114 for pretreating the fresh air. The fresh air pretreatment device 105 includes a coarse filter layer and a medium filter layer for filtering large particles in the air.

The first cabinet 101 also has an optional chemical filter module 107 arranged between the fresh air inlet 114 and the fresh air inlet fan 108 for chemically filtering the fresh air. Through the chemical filtration module 107, the concentration of chemical pollutants (such as NO _x , SO _x , NH ₃ and TVOC) is reduced, thereby promoting subsequent fine filtration of fresh air. The chemical filtration module 107 is, for example, a cylindrical structure filled with activated carbon fillers of various formulas.

Also shown in FIG. 1 is a second cabinet 102 . The second cabinet 102 has a second fresh air channel, which connects the first fresh air channel with the fresh air outlet 118 for guiding fresh air from the first cabinet 101 to the fresh air outlet 118 . In FIG. 1 , the first fresh air channel 101 in the first cabinet communicates with the second fresh air channel in the second cabinet 102 through a channel 121 for delivering fresh air.

The second cabinet 102 also has an indoor unit for air conditioning, which includes a dehumidifier 109 and a heater 110 arranged in the second fresh air passage, wherein the dehumidifier 109 is, for example, a Freon direct evaporative surface cooler (or called a surface cooler), It is used for deep dehumidification of fresh air. The heater 110 is used to heat the dehumidified air with a relatively low temperature to an appropriate temperature, and the heater 110 is, for example, an electric heating wire.

The second cabinet 102 also has an outdoor air conditioner (not shown) for supplying cold source, which includes a digital variable capacity direct expansion air cooling unit for supplying cooling to the dehumidifier.

The feature of the digital variable capacity direct expansion air-cooled unit is that during dehumidification, the refrigerant directly evaporates and exchanges heat with the fresh air to complete the dehumidification function. The system is simple and the effect is good.

The second cabinet 102 also includes a fresh air outlet fan 113 for discharging fresh air from the second cabinet 102 . The air inlet direction of the fresh air outlet fan 113 can be either perpendicular to the flow direction of the fresh air or parallel to the flow direction of the fresh air. Finally, the second cabinet 102 also includes a fresh air outlet 118 for discharging fresh air.

The second cabinet 102 also optionally includes a control module 112 configured to adjust the supply air temperature of the fresh air to be 1°C-2°C higher than the dew point temperature in summer to prevent condensation and control the room temperature to 26°C and the relative humidity to 55°C. %, and in winter, the room temperature is controlled to 20°C and the relative humidity is controlled to 35%, and the operating conditions are changed from season to season. In addition, the control module 112 can also adjust indoor parameters such as temperature, humidity, air pressure difference and cleanliness according to the detection data received from the gymnasium real-time monitoring system 400 (see FIG. 4 and its corresponding description). Ensure low-temperature air supply without condensation, operate under variable working conditions, ensure comfortable air-conditioning and save energy at the same time.

The fresh air inlet 114 and exhaust air outlet 116 of the first cabinet 101 can optionally have gravity self-locking dampers 115 respectively, so that the automatic closing of each damper 114 and 116 can be realized when no fresh air is introduced or exhausted air is discharged. Thus effectively preventing pollutants or foreign matter from entering the air duct through the dampers 114 and 116 to cause pollution or blockage. Further details of the gravity lock damper 115 will be set forth in FIG. 3 .

In addition, the fresh air inlet fan 108 and the fresh air outlet fan 113 are equipped with brushless DC motors with adjustable speed. In this way, energy saving can be realized on the one hand, because using a brushless DC motor can save 30% of electric energy compared with using an AC fan. On the other hand, by using a motor with adjustable speed, the fresh air volume can be adjusted to meet the requirements of different cleanliness and working conditions, and realize one machine with multiple functions. The power of a single fan is, for example, 150-300W, and its power varies by about 10% as the air volume changes. In addition, it is also feasible to sacrifice part of the energy-saving effect to reduce the number of models. Compared with step-by-step variable speed regulation of AC motor, the system of stepless speed regulation is much simpler, thus reducing the control cost. For changes in cleanliness, the return air volume can be adjusted accordingly (change the speed of the return air fan).

In this integrated cabinet, the rated air volume of the fresh air volume is 1500m ³ /h, and the fresh air has the ability to eliminate the heat and humidity load in the gym after cooling and dehumidification. Other fresh air volumes are also conceivable. Therefore, the "air-conditioning function" and "purification function" of the "purifying air-conditioning" system of the gym can be implemented separately, so as to fundamentally avoid the disadvantages of "cold" and "heat" of the purifying air-conditioning system. Moreover, the integrated cabinet can greatly simplify the purification air-conditioning system of the gymnasium, reduce the number of valves, and reduce the difficulty of automatic control. It is easy to operate, simple to maintain, and has a good energy-saving effect.

In addition, in this integrated cabinet, the fresh air inlet fan 108 and the fresh air outlet fan 113 are used in series to realize superposition of fan pressure heads, so as to solve the technical bottleneck of the multi-functional section requiring high pressure heads in the integrated cabinet.

Deep dehumidification belongs to low-temperature supply air. In addition to a slight reheating measure, the fan temperature rise of the circulating air (for example, about 0.5°C in the case of a fan filter unit FFU) can reduce the risk of "supply air condensation".

The flow process of the air to be exhausted and the fresh air in the exhaust and fresh air integrated cabinet 100 in the gymnasium will be described respectively below.

The flow process of the air to be exhausted is as follows: first, the air to be exhausted enters the exhaust channel of the first cabinet 101 under the action of the exhaust fan 104, passes through the heat recovery device 106 and transfers the waste cold or waste heat to the heat exchange plate 117, and exchanges The heat plate 117 then transfers the waste cold or waste heat to the fresh air conveyed in the heat exchange plate 117 ; then, the air to be exhausted is discharged from the exhaust outlet 116 .

The flow process of the fresh air is as follows: first, the fresh air enters the first fresh air channel of the first cabinet 101 from the fresh air inlet 114 of the first cabinet 101 under the action of the fresh air inlet fan 108, and after being purified and filtered by the fresh air pretreatment device 105 Enter the heat exchange plate 117 and absorb the waste heat or waste cold from the air to be exhausted and heat up or cool down; then, the fresh air passes through the optional chemical filter module 107 to undergo preliminary purification and filtration; the fresh air after the preliminary purification and filtration then leaves the first cabinet 101 and enter the second fresh air channel of the second cabinet through the channel 121. In the second cabinet 102, the fresh air passes through the fresh air under the action of the fresh air outlet fan 113 after undergoing the deep dehumidification of the dehumidifier 109 and the heating of the heater 110 respectively. An outlet 118 exits the second cabinet 102 .

According to the gymnasium exhaust and fresh air integrated cabinet 100 of the present invention, it has at least the following advantages: (1) the gym exhaust and fresh air integrated cabinet 100 integrates the functions of fresh air dehumidification, temperature adjustment, purification and exhaust in a single integrated cabinet, which not only eliminates the central air conditioner, and its modular structure realizes compact shape and convenient installation, thereby reducing equipment cost, installation cost and installation space requirements; That is, the heat recovery device transfers the waste heat or waste cold in the air to be exhausted to the fresh air, so as to realize the energy-saving effect; (3) in the gymnasium exhaust and fresh air integrated cabinet 100 according to the present invention, the treatment of the fresh air and the circulating air The treatment is completely separated (that is, the fresh air processor does not dehumidify and adjust the temperature of the return air), which can greatly save electric energy. This is because, according to the inventor's unique insight, only a certain amount of fresh air needs to be deeply dehumidified, adjusted and tempered. Purification treatment, and the circulation air only needs to be purified to maintain the air quality of the gym at an ideal level, because the indoor personnel only increase the humidity and temperature in the room by a small amount, so this part of the small increase in humidity and temperature is completely ok It is offset by the treated fresh air alone, without dehumidification and temperature adjustment of the return air; in this way, not only the electric energy used for dehumidification and temperature adjustment of the return air is saved, but also because the dehumidification process is all transferred to one The dehumidification function is performed in the cabinet instead of in the return air processor, which also avoids the shortcoming of "cold and hot offset" in the primary return air, and improves the temperature control efficiency.

FIG. 2 shows a view of the heat recovery device 106 from the direction A of FIG. 1 . In FIG. 2 , arrows are used to indicate the flow direction of the air to be exhausted, and cross lines are used to indicate the flow direction of the fresh air. It can be seen from FIG. 2 that the heat recovery device 106 includes a plurality of heat exchange plates 117, and the heat exchange plates 117 are, for example, arranged perpendicular to each other to form passages for exhaust air and fresh air respectively, and the two passages are not connected to each other. To prevent undesired mixing of fresh air and exhaust air. The heat exchange plate 117 is used to collect the waste heat or waste cold of the exhaust air (see the arrow in FIG. 2 ) passing through the heat exchange plate 117, and transfer the waste heat or waste cold to the fresh air ( See crossed lines in Figure 2). Through the heat recovery device 106, the waste heat or waste cold to be exhausted can be reused, thereby achieving energy saving effect. The heat exchange plate 117 can be, for example, an extremely thin copper plate, but heat exchange plates 117 made of other heat-conducting materials are also conceivable.

FIG. 3 shows a schematic diagram of the gravity self-locking damper 115 according to the present invention. As shown in FIG. 1 , the gravity self-locking damper 115 is arranged, for example, in the fresh air inlet 114 , but it is also conceivable to arrange the gravity self-locking damper 115 in the exhaust air outlet 116 .

The gravity self-locking damper 115 includes a wind plate 301 whose size matches the tuyere. For example, the size of the wind plate 301 is determined such that when the wind plate 301 is vertical, it can just cover the air opening, that is, the fresh air inlet 114, so as to achieve a sealing effect. The damper can be made of plastic, wood or other lightweight material.

The gravity self-locking damper 115 also includes a turning shaft 303 , which passes through the wind plate 301 so that the wind plate 301 can turn around the turning shaft 303 .

As shown in FIG. 3 , a counterweight 302 is arranged at one end of the wind plate 301 , such as the lower end, so that the wind plate 301 remains vertical to close the air outlet without external force. The counterweight can be made of high-density materials such as metal, for example. The counterweight 302 is installed at a suitable position on the wind plate 301, so that the wind plate 301 will naturally return to the lowest point under the action of gravity, that is, the place where the gravitational potential energy is the smallest, when there is no external force, that is, when there is no wind to be exhausted or fresh air, so that the wind plate 301 is closed tuyere. And when introducing fresh air or discharging the wind to be exhausted, the wind plate 301 is turned around the turning axis 303 against the gravity under the suction of the fresh wind or the thrust of the wind to be exhausted, thereby creating a gap, so that the fresh wind or the wind to be exhausted can pass through the gap Into the tuyere or out of the tuyere (see arrow in Figure 3). Also shown in FIG. 3 is a stopper 304 which may be arranged at the bottom and/or top of the tuyere. The stopper 304 can prevent the wind plate from moving in reverse, that is, from moving in a direction opposite to the direction of airflow (fresh air, to-be-discharged air).

Through the gravity self-locking damper 115, each damper can be automatically closed when no fresh air is introduced or the air to be exhausted is discharged, thereby effectively preventing pollutants or foreign matter from entering the air duct through the damper to cause pollution or blockage.

Fig. 4 shows a schematic diagram of a gym real-time detection system 400 of the gym fresh air exhaust integrated cabinet 100 according to the present invention.

In FIG. 4 , the operating room real-time detection system 400 exemplarily includes a temperature detector 401, a humidity detector 402, a pressure difference detector 403, and a particle detector 404, which are respectively configured to detect the temperature, humidity, Differential pressure value and particle concentration or particle count. In this embodiment, the operating room real-time detection system 400 may also include a wireless transmitting unit 405, which is configured to wirelessly transmit the detected temperature value, humidity value, wind speed value, pressure difference value and particle concentration value or particle The data is sent to the control module 112 arranged in the integrated cabinet 100. The control module 112 adjusts the system manually or automatically according to the received information to maintain the desired air parameters of various operating rooms, including parameter display and alarm. Here, it should be pointed out that although in this embodiment the operating room real-time detection system 400 is shown as communicating with the control module 112 in a wireless manner, in other embodiments, the communication may also be performed in a wired manner, and in other embodiments In , fewer or more detection devices can be placed in the operating room.

While certain embodiments of the invention have been described in this specification, it will be apparent to those skilled in the art that these embodiments have been presented by way of example only. Numerous variations, substitutions and improvements can occur to those skilled in the art without departing from the scope of the invention. It is intended that the scope of the invention be defined by the appended claims and that methods and structures within the scope of such claims themselves and their equivalents be covered thereby.

Claims (9)

1. a kind of gymnasium air draft fresh air one rack, comprising:

First rack, it has:

For introducing the air draft entrance treating air draft；

For discharging the wind exhausting outlet treating air draft；

Air exhaust passage, air draft entrance is connected with wind exhausting outlet and treats air draft for guiding by it；

Exhaust fan, it is arranged between air draft entrance and wind exhausting outlet for treating that air draft enters from air draft in air exhaust passage Mouth is to wind exhausting outlet guiding；

Heat reclamation device, it is arranged between exhaust fan and wind exhausting outlet in air exhaust passage, and described heat reclamation device includes Plate type heat exchanger is for reclaiming the used heat or useless cold in air draft；

For introducing the fresh air inlet of fresh air, described fresh air inlet is connected with plate type heat exchanger for absorbing by plate type heat exchanger From the used heat or useless cold treating collection air draft；

Fresh air pretreatment device, it is arranged at fresh air inlet for carrying out pretreatment to fresh air；

First fresh air channel, fresh air inlet is connected for fresh air is directed to the second machine from fresh air inlet by it with the second rack Cabinet；

Fresh air air intake blower fan, its be arranged on fresh air flow direction in the first fresh air channel after heat reclamation device for By Leads to new breeze first rack；And

Second rack, it has:

Fresh air exports, and it is used for sending fresh air；

Second fresh air channel, the first fresh air channel is connected for being directed to newly fresh air from the first rack by it with fresh air outlet Wind exports；

Idle call indoor set, it includes dehumidifier and the heater being arranged in the second fresh air channel；

Idle call outdoor machine, it includes digital variable volume direct-expansion type air-cooled unit for dehumidifier cooling；And

Fresh air air-out blower fan, it is used for discharging fresh air from the second rack by fresh air outlet.

2. air draft fresh air one rack in gymnasium according to claim 1, the wherein first rack also includes being arranged in fresh air Chemical filtering module between entrance and fresh air air intake blower fan for carrying out chemical filtering, wherein said excessively chemical mistake to fresh air Filter module includes medium air filtration layer.

3. air draft fresh air one rack in gymnasium according to claim 1, also includes control module, described control module quilt It is configured to execute at least one following action:

The wind pushing temperature adjusting fresh air when summer is condensed with preventing and controls room temperature to be 26 for high 1 DEG C -2 DEG C than dew point temperature DEG C, relative humidity be 55%；

Room temperature is controlled to be 20 DEG C and control relative humidity to be 35% when in the winter time.

4. air draft fresh air one rack in gymnasium according to claim 1, wherein for every 200 square metres of offers of gymnasium Resh air requirement 1500m³/ h or for every 50 people provide resh air requirement 1500m³/h.

5. air draft fresh air one rack in gymnasium according to claim 4, also includes gymnasium real-time monitoring system, and this is good for Body room is applied monitoring system in real time and is included:

Humidity measurement instrument, it is configured to detect the humidity in room；

Temperature monitor, it is configured to detect the temperature in room；

Pressure difference detector, its be configured to detect fresh air air-flow through rack before with after draught head；And

Airborne particle counter is popped one's head in, and it is configured to the dust particle of the in the air in room is counted；And

Wireless transmitting unit, it is configured to for measured detection data to be wirelessly transmitted to radio receiving unit.

6. air draft fresh air one rack in gymnasium according to claim 5, also includes air quality real-time displaying device, institute State air quality real-time displaying device be configured to from gymnasium real-time monitoring system wirelessly receive detection data and to Family displays temperature, humidity and/or airborne.

7. the gymnasium air draft fresh air one rack according to one of claim 1 to 5, wherein goes out in fresh air inlet and air draft It is respectively disposed with gravity self-locking air door, described gravity self-locking air door has in mouthful:

Aerofoil, its size and air port match；

Trip shaft, it enables aerofoil to overturn around trip shaft through aerofoil；

Counterweight, it is arranged in one end of described aerofoil so that aerofoil keeps vertically to close air port in the case of not being subject to external force； And

Backstop, it is arranged in the top of air outlet and/or bottom for preventing aerofoil from reversely deflecting.

8. the gymnasium air draft fresh air one rack according to one of claim 1 to 5, wherein exhaust fan, fresh air air intake Blower fan and fresh air air-out blower fan are equipped with brshless DC motor, and the rotating speed of wherein said brshless DC motor is adjustable.

9. air draft fresh air one rack in gymnasium according to claim 8, wherein resh air requirement is in 800m³/ h to 1500m³/h Between switch, and exhaust air rate can accordingly adjust.