CN211876266U - Intelligent ventilation system for large space - Google Patents
Intelligent ventilation system for large space Download PDFInfo
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- CN211876266U CN211876266U CN202020348624.3U CN202020348624U CN211876266U CN 211876266 U CN211876266 U CN 211876266U CN 202020348624 U CN202020348624 U CN 202020348624U CN 211876266 U CN211876266 U CN 211876266U
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Abstract
The utility model discloses an intelligent ventilation system for big space, including a plurality of ventilation modules, the ventilation module includes air pipe, air-out mechanism and control system, and is a plurality of air-out mechanism is along air pipe evenly distributed on air pipe, air-out mechanism includes air outlet and air regulation valve, air outlet and air regulation valve communicate to air pipe in proper order, control system and air regulation valve signal connection. Adopt above-mentioned technical scheme, control each air-out mechanism respectively through control system to realize the circulation of air, when guaranteeing the indoor air quality, can let the air flow rate that every air-out mechanism flows the same, thereby improved the degree of consistency and the travelling comfort of indoor air current greatly.
Description
Technical Field
The utility model relates to an indoor ventilation technical field specifically indicates an intelligent ventilation system for big space.
Background
The building has large space, high space and various indoor structural forms without interlayers and columns. Such as a hall, a movie theater, a convention and exhibition center, a gymnasium, etc. In the building with the large space, the building decoration material can emit harmful gas, people can also generate carbon dioxide when breathing, and the indoor air quality is greatly influenced due to the fact that the space is too large and is closed and the concentration of the harmful gas is high. Therefore, control of the airflow pattern within the chamber is particularly important.
At present, the large-space building is provided with a ventilation system, and the ventilation system is communicated with outside air, so that the indoor air quality is ensured. This type of ventilation system usually has a plurality of main fans to constitute, and every main fan all can communicate has air pipe, sets up a plurality of air outlet on every air pipe. With the maturity of the automation technology, the air speed of each air outlet can be adjusted and controlled, and therefore the uniformity of airflow organization is ensured. However, a large number of air outlets are generally arranged in the large-space building, and if each air outlet is controlled separately, the operation is inconvenient, and the cost is greatly increased.
In order to solve the problems, technicians carry out on-line operation on the actuating mechanisms of all the air outlets, so that the air outlets are controlled in a unified manner, the operation is convenient, and the cost is greatly reduced. However, in actual operation, it is found that the closer all the air outlets are to the wind source, the faster the air flow rate from the air outlets is, and the farther away from the wind source, the slower the air flow rate from the air outlets is, thereby affecting the uniformity and comfort of the airflow organization.
SUMMERY OF THE UTILITY MODEL
The utility model discloses according to prior art's not enough, provide an intelligent ventilation system for big space, not only can control all air outlets respectively to make every air outlet exhaust air wind speed the same.
In order to solve the technical problem, the utility model discloses a technical scheme does:
the utility model provides an intelligent ventilation system for big space, includes a plurality of ventilation modules, the ventilation module includes air pipe, air-out mechanism and control system, and is a plurality of air-out mechanism is along air pipe evenly distributed on air pipe, air-out mechanism includes air outlet and air regulation valve, air outlet and air regulation valve communicate to air pipe in proper order, control system and air regulation valve signal connection.
Preferably, the control system comprises a wind speed detection module, a PLC control module and a human-computer interface, the wind speed detection module is connected with the input end of the PLC control module, the human-computer interface is connected with the PLC control module, the PLC control module comprises a PLC and a plurality of groups of control circuits, each group of control circuits comprises a manual switch, an automatic and manual change-over switch S1, an alternating current contactor KM, a relay KA, a relay K, a three-phase voltage regulation module and a circuit module for controlling the alternating current contactor KM, and the air volume regulating valve is electrically connected with 220V alternating current through a normally open contact of the alternating current contactor; the 220V alternating current is connected with the PLC; two ends of the coil of the relay KA are connected in parallel; the control end of the PLC is respectively connected with the normally open contacts of all the relays KA, and the normally open contacts of the relays KA in the same group of control lines are respectively connected with one end of a coil of the relay K; the other end and the DC power supply of relay K's coil are connected, DC power supply, manual switch, relay KA's normally closed contact, relay K's coil constitute the return circuit, control AC contactor KM's circuit module includes relay K's normally open contact and AC contactor KM's coil, relay K's normally open contact and AC contactor KM's coil establish ties.
Preferably, the wind speed detection module is installed at the air outlet and is connected with the PLC through RS-485.
Preferably, air regulation valve includes the governing valve main part, be equipped with valve leaf and transmission shaft in the governing valve main part, the valve leaf passes through the articulated elements and installs on the transmission shaft, install electric actuator M in the governing valve main part, electric actuator M passes through the rotatory valve leaf of transmission shaft, electric actuator M is connected with 220V alternating current through ac contactor's normally open contact.
Preferably, the PLC is an ohm dragon PLC-CQM 1H series.
The utility model has the following characteristics and beneficial effect:
adopt above-mentioned technical scheme, control each air-out mechanism respectively through control system to realize the circulation of air, when guaranteeing the indoor air quality, can let the air flow rate that every air-out mechanism flows the same, thereby improved the degree of consistency and the travelling comfort of indoor air current greatly, and can be connected to the air outlet of air conditioner, the temperature of adjustable air-out, it is more convenient to use, and indoor air current is more comfortable.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic diagram of a control principle in an embodiment of the present invention;
fig. 3 is a schematic structural view of an air volume adjusting valve in an embodiment of the present invention.
In the figure, 1 is a ventilating duct, 2 is an air outlet mechanism, 4 is a valve blade, 5 is a transmission shaft, 6 is an adjusting valve main body and 7 is an electric actuating mechanism.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may include, for example, a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The utility model provides an intelligent ventilation system for big space, as shown in figure 1, including a plurality of ventilation modules, the ventilation module includes air pipe 1, air-out mechanism 3 and control system, and is a plurality of air-out mechanism 3 is along air pipe 1 evenly distributed on air pipe 1, air-out mechanism 3 includes air outlet and air regulation valve, air outlet and air regulation valve communicate to air pipe 1 in proper order, control system and air regulation valve signal connection.
Among the above-mentioned technical scheme, control each air regulation valve respectively through control system to realize the circulation of air, when guaranteeing the indoor air quality, can let the air flow rate that every air-out mechanism flows the same, thereby improved indoor travelling comfort greatly.
In the whole adjusting operation, each air volume adjusting valve is not required to be controlled, the control is simple, the operation is convenient, the structure of the ventilation system is greatly simplified, the installation is more convenient, and the material cost and the installation cost are greatly reduced.
It can be understood that one end of the ventilation pipeline 1 is connected with an air outlet of an air conditioner, and the ventilation pipeline carries out convection on indoor air through the air conditioner and provides warm air or cold air according to the requirement of the environment.
Specifically, as shown in fig. 2, the control system includes a wind speed detection module, a PLC control module, and a human-computer interface, the wind speed detection module is connected to an input end of the PLC control module, the human-computer interface is connected to the PLC control module, the PLC control module includes a PLC and a plurality of sets of control circuits, each set of control circuit includes a manual switch, an automatic and manual switch S1, an ac contactor KM, a relay KA, a relay K, a three-phase voltage regulation module, and a circuit module for controlling the ac contactor KM, the air volume regulating valve is electrically connected to 220V ac through a normally open contact of the ac contactor, and 220V ac is connected to the PLC; two ends of the coil of the relay KA are connected in parallel; the control end of the PLC is respectively connected with the normally open contacts of all the relays KA, and the normally open contacts of the relays KA in the same group of control lines are respectively connected with one end of a coil of the relay K; the other end and the DC power supply of relay K's coil are connected, DC power supply, manual switch, relay KA's normally closed contact, relay K's coil constitute the return circuit, control AC contactor KM's circuit module includes relay K's normally open contact and AC contactor KM's coil, relay K's normally open contact and AC contactor KM's coil establish ties.
The wind speed detection module is arranged at the air outlet and is connected with the PLC through RS-485.
Among the above-mentioned technical scheme, carry out air volume control through PLC controller and air-out mechanism communication mode, development cycle is short, and the procedure is simple, satisfies the control requirement simultaneously. The wind speed signal is collected in real time and fed back to the PLC, the target temperature is compared through the PLC, the output quantity is given through a PID algorithm, and closed-loop control is achieved. In addition, the power of the air volume regulating valve is regulated through the air speed detection module, the three-phase voltage regulating module and the PLC, so that any power between 0 and 8KW can be realized, the energy is saved, no large current impact exists, the power regulation is smooth, the control precision is high, and the constant air speed control is really realized. In addition, two control modes are adopted, the automatic mode and the manual mode can be freely switched, and when one mode is abnormal, the other mode can be switched to not influence the normal use of equipment with low control precision.
It can be understood that different quantity of air volume regulating valves can be arranged according to requirements, correspondingly, the air volume regulating valves comprise the same quantity of alternating current contactors KM, and all the alternating current contactors KM are connected in parallel. Accordingly, there are the same number of relays K, each including a manual switch.
The PLC is an ohm dragon PLC-CQM 1H series. The system can be used for realizing multi-point output, so that the air outlet mechanisms with different quantities can be controlled according to requirements.
Further, air regulation valve includes governing valve main part 6, be equipped with valve leaf 4 and transmission shaft 5 in the governing valve main part 6, valve leaf 4 passes through the articulated elements and installs on transmission shaft 5, install electric actuator M7 on the governing valve main part 6, electric actuator M7 passes through transmission shaft 5 rotary valve leaf 4, electric actuator M7 is connected with 220V alternating current through ac contactor's normally open contact.
In the technical scheme, the valve leaf 4 is driven to rotate by the electric actuating mechanism 7, so that the ventilation area in the regulating valve body 6 is adjusted by the rotation of the valve leaf 4, and the air volume of each air supply outlet is adjusted.
Specifically, the transmission shaft 5 is installed in the adjusting valve main body 6, and one side of the transmission shaft 5 is hinged with the center of one side of the valve leaf 4.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments, including the components, without departing from the principles and spirit of the invention, and still fall within the scope of the invention.
Claims (5)
1. The utility model provides an intelligent ventilation system for big space, a serial communication port, including a plurality of ventilation modules, the ventilation module includes air pipe (1), air-out mechanism (2) and control system, and is a plurality of air-out mechanism (2) are along air pipe (1) evenly distributed on air pipe (1), air-out mechanism (2) include air outlet and air regulation valve, air outlet and air regulation valve communicate to air pipe (1) in proper order, control system and air regulation valve signal connection.
2. The intelligent ventilation system for large space according to claim 1, wherein the control system comprises a wind speed detection module, a PLC control module and a human-computer interface, the wind speed detection module is connected with the input end of the PLC control module, the human-computer interface is connected with the PLC control module, the PLC control module comprises a PLC and a plurality of groups of control circuits, each group of control circuits comprises a manual switch, an automatic and manual change-over switch S1, an AC contactor KM, a relay KA, a relay K, a three-phase voltage regulation module and a circuit module for controlling the AC contactor KM, and the air volume regulating valve is electrically connected with 380V AC through a normally open contact of the AC contactor; the 380V alternating current is transformed by a transformer and then 220V alternating current is output; the 220V alternating current is connected with the PLC; two ends of the coil of the relay KA are connected in parallel; the control end of the PLC is respectively connected with the normally open contacts of all the relays KA, and the normally open contacts of the relays KA in the same group of control lines are respectively connected with one end of a coil of the relay K; the other end and the DC power supply of relay K's coil are connected, DC power supply, manual switch, relay KA's normally closed contact, relay K's coil constitute the return circuit, control AC contactor KM's circuit module includes relay K's normally open contact and AC contactor KM's coil, relay K's normally open contact and AC contactor KM's coil establish ties.
3. The intelligent ventilation system for large space according to claim 2, wherein the wind speed detection module is installed at the wind outlet and is connected with the PLC through RS-485.
4. The intelligent ventilation system for the large space according to claim 3, wherein the air volume adjusting valve comprises an adjusting valve main body (6), a valve blade (4) and a transmission shaft (5) are arranged in the adjusting valve main body (6), the valve blade (4) is installed on the transmission shaft (5) through a hinge, an electric actuator M (7) is installed on the adjusting valve main body (6), the electric actuator M (7) rotates the valve blade (4) through the transmission shaft (5), and the electric actuator M (7) is electrically connected with 380V alternating current through a normally open contact of an alternating current contactor.
5. The intelligent ventilation system for large space according to any one of claims 2 to 4, wherein the PLC model is ohm dragon PLC-CQM 1H series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020348624.3U CN211876266U (en) | 2020-03-19 | 2020-03-19 | Intelligent ventilation system for large space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020348624.3U CN211876266U (en) | 2020-03-19 | 2020-03-19 | Intelligent ventilation system for large space |
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| CN211876266U true CN211876266U (en) | 2020-11-06 |
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| CN202020348624.3U Active CN211876266U (en) | 2020-03-19 | 2020-03-19 | Intelligent ventilation system for large space |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473450A (en) * | 2020-03-19 | 2020-07-31 | 浙江新亚环境科技有限公司 | Intelligent ventilation system for large space |
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2020
- 2020-03-19 CN CN202020348624.3U patent/CN211876266U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111473450A (en) * | 2020-03-19 | 2020-07-31 | 浙江新亚环境科技有限公司 | Intelligent ventilation system for large space |
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Address after: 310000 room 2009, No. 135, Jichang Road, Shangcheng District, Hangzhou City, Zhejiang Province Patentee after: Xinya Environmental Technology Group Co.,Ltd. Address before: Room 2009, No. 135, Jichang Road, Jianggan District, Hangzhou, Zhejiang 310004 Patentee before: ZHEJIANG XINYA ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |