CN210801525U - Cascade regulation control system in air conditioner water system - Google Patents
Cascade regulation control system in air conditioner water system Download PDFInfo
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- CN210801525U CN210801525U CN201921436510.8U CN201921436510U CN210801525U CN 210801525 U CN210801525 U CN 210801525U CN 201921436510 U CN201921436510 U CN 201921436510U CN 210801525 U CN210801525 U CN 210801525U
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Abstract
The utility model relates to a cascade control system among air conditioner water system. The cascade regulation control system in the air conditioning water system comprises a water storage device, a primary water supply device, a pipeline system, a tail end heat exchange device and a secondary compensation water supply device, and is characterized in that the water storage device is connected with the pipeline system. The utility model discloses a be connected with one-level water supply installation and second grade compensation water supply installation on the water storage device, carry out cascade water supply, and then carry out the cascade adjustment to terminal temperature control, be provided with the temperature-sensing module on the terminal heat transfer device that pipe-line system connects, the temperature-sensing data of temperature-sensing module passes into the temperature difference processing module, contrast the temperature of actual detection and the settlement temperature of temperature settlement module through the temperature difference processing module, second grade control module control second grade compensation water supply installation starts when the difference in temperature surpasses the setting range, carry out the adjustment of temperature, guarantee target area temperature control precision.
Description
Technical Field
The utility model relates to a cascade control system among air conditioner water system belongs to the control system technical field.
Background
The water system of the water-cooled central air-conditioning system comprises a cooling water system and a chilled water/hot water system, and generally adopts a single-pipe system, wherein water is circulated in summer, water is circulated in winter, and an air-cooled or air-cooled heat pump system only comprises the chilled/hot water system. The circulating water system is an important part of a central air-conditioning system, and the water system type is a small semi-centralized fan coil system, and all indoor loads are borne by a cold-hot water unit. The fan coil of each room is connected with the cold and hot water unit through a pipeline, and the cold and hot water is supplied for cooling and heating. The water system is flexible in arrangement, good in independent adjustability and high in comfort level, and can meet the requirements of dispersed use of complex house types and independent operation of each room. In addition, the air conditioner of the existing novel water system is also one of the best solutions applied to the floor heating system, and the air conditioner is effectively combined with the floor heating system, adopts a mode of medium-low water temperature large-area low-temperature radiation heating, and is more comfortable and energy-saving than the traditional fan coil heating system.
The hydraulic balance in the air conditioning water system cannot improve the control precision of the target area temperature, and also depends on other factors, shifting factors such as the water outlet temperature of the water inlet chilling unit, the fresh air temperature, the fresh air measurement, the tail end capacity and the like, and the cascade regulation control system can bring the influence of fluctuation factors into the secondary loop, overcome other influences on the target area temperature, and realize the precision requirement of the target area temperature.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to solve the above problems in the prior art, the utility model provides a cascade control system in air conditioner water system.
(II) technical scheme
In order to achieve the above object, the utility model discloses a main technical scheme include: the system comprises a water storage device, a primary water supply device, a pipeline system, a terminal heat exchange device and a secondary compensation water supply device, and is characterized in that the water storage device is connected with the pipeline system, the pipeline system is connected with the primary water supply device, the pipeline system is connected with the terminal heat exchange device, the terminal heat exchange device is connected with a fan system, the fan system is provided with fresh air temperature detection, the fan system is provided with fresh air volume detection, the outlet of the terminal heat exchange device is connected with a temperature sensing module, the temperature sensing module is electrically connected with a temperature difference processing module, the temperature difference processing module is electrically connected with a processing module, the fresh air temperature detection and processing module is electrically connected with the fresh air volume detection and processing module, the processing module is electrically connected with a secondary control module, and the secondary control module is connected with the secondary compensation water supply device, the secondary compensation water supply device is connected with a secondary pipeline system, the secondary pipeline system is connected with a tail end heat exchange device, the tail end heat exchange device is connected with a temperature setting module, and the temperature setting module is electrically connected with the temperature difference processing module.
Preferably, the water storage device is respectively connected with the pipeline system and the secondary pipeline system, and the tail ends of the pipeline system and the secondary pipeline system are both connected with the tail end heat exchange device.
Preferably, the primary water supply device and the secondary compensation water supply device are both connected with an external power device, and a power system of the secondary compensation water supply device is smaller than that of the primary water supply device.
Preferably, the data after the fresh air temperature detection and the fresh air volume detection are subjected to analog-to-digital conversion, and then the data signals are transmitted to the processing module, and the processing module performs weighting processing on the data signals.
Preferably, the temperature setting module sets the operating temperature, the temperature sensing module detects the actual temperature of the tail end heat exchange device, and the detection temperature of the temperature sensing module is compared with the set temperature through the temperature difference processing module.
Preferably, the processing module inputs the result data after the comprehensive processing into the secondary control module, and the secondary control module is controlled by a power system of the secondary compensation water supply device.
(III) advantageous effects
Compared with the prior art, the utility model provides a cascade control system among air conditioner water system possesses following beneficial effect:
(1) the system carries out cascade water supply by connecting a primary water supply device and a secondary compensation water supply device on a water storage device, and further carries out cascade adjustment on the temperature control of the tail end, a temperature sensing module is arranged on a tail end heat exchange device connected with a pipeline system, the temperature sensing data of the temperature sensing module is transmitted into a temperature difference processing module, the actually detected temperature is compared with the set temperature of the temperature setting module through the temperature difference processing module, after the signals of fresh air temperature detection and fresh air quantity are transmitted into the processing module for weighting processing, the processing system is used for adjusting a fan system, auxiliary adjustment is carried out when small temperature difference exists, the secondary control module controls the secondary compensation water supply device to start when the temperature difference exceeds the set range, water flow is guided into the tail end heat exchange device through a secondary pipeline system for temperature adjustment, and the temperature of a target area is ensured to be maintained at the set temperature, the temperature control precision of the target area is ensured, and the using effect is good.
Drawings
Fig. 1 is a schematic plan view of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a cascade regulation control system in an air conditioning water system comprises a water storage device, a primary water supply device, a pipeline system, a terminal heat exchange device and a secondary compensation water supply device, and is characterized in that the water storage device is connected with the pipeline system, the pipeline system is connected with the primary water supply device, the pipeline system is connected with the terminal heat exchange device, the terminal heat exchange device is connected with a fan system, the fan system is provided with a fresh air temperature detection, the fan system is provided with a fresh air amount detection, an outlet of the terminal heat exchange device is connected with a temperature sensing module, the temperature sensing module is electrically connected with a temperature difference processing module, the temperature difference processing module is electrically connected with a processing module, the fresh air temperature detection and processing module are electrically connected with the fresh air amount detection and processing module, the processing module is electrically connected with a secondary control module, and the secondary compensation water supply device, the secondary compensation water supply device is connected with a secondary pipeline system, the secondary pipeline system is connected with a tail end heat exchange device, the tail end heat exchange device is connected with a temperature setting module, and the temperature setting module is electrically connected with the temperature difference processing module.
The water storage device is respectively connected with the pipeline system and the second-stage pipeline system, the tail ends of the pipeline system and the second-stage pipeline system are connected with the tail end heat exchange device, water flow is guided in through the pipeline system and the second-stage pipeline system, temperature exchange of different target areas is carried out, the pipeline system and the second-stage pipeline system are arranged in a cascade mode, temperature compensation is carried out through the second-stage pipeline system, the temperature of the target area is guaranteed to be consistent with the set temperature, and the control precision of the temperature is improved.
The primary water supply device and the secondary compensation water supply device are both connected with an external power device, a power system of the secondary compensation water supply device is smaller than that of the primary water supply device, power output is performed through the external power device, and the power system of the primary water supply device is a main power system and performs main output of overall power.
Data after fresh air temperature detection and fresh air volume detection transmit processing module to data signal after the analog-to-digital conversion, and processing module carries out the weighted processing to data signal, and signal processing through processing module carries out the adjustment of fan system power, carries out supplementary accuse temperature when the difference in temperature is less, and data signal weighted processing can be handled the influence of wind current to the temperature more accurately, and control accuracy is high.
The temperature setting module carries out operating temperature's settlement, and the temperature-sensing module detects terminal heat transfer device's actual temperature, and the detection temperature of temperature-sensing module contrasts through temperature difference processing module and the temperature of setting for, and the error of actually carrying out with the settlement temperature through the contrast of temperature is differentiateed, and then confirms the precision of temperature error, is convenient for control the temperature.
The processing module inputs result data after comprehensive processing into the secondary control module, the secondary control module controls a power system of the secondary compensation water supply device, auxiliary water inlet is carried out through secondary feedback, the error between the actual temperature and the set temperature is ensured to be within a set range, and the control precision of the temperature of the target area is improved.
To sum up, in the cascade regulation control system in the air conditioning water system, a water storage device stores a required water source when in use, the water storage device is connected with a primary water supply device and a secondary compensation water supply device, the water storage device guides water flow into the primary water supply device through a power device, the secondary compensation water supply device on the water storage device performs cascade water supply so as to perform cascade regulation on the temperature control of the tail end, a temperature sensing module is arranged on a tail end heat exchange device connected with a pipeline system, temperature sensing data of the temperature sensing module is transmitted into a temperature difference processing module, the actually detected temperature is compared with the set temperature of the temperature setting module through the temperature difference processing module, after weighting processing is performed on fresh air temperature detection and a fresh air volume signal, a fan system is regulated through a processing system, and auxiliary regulation is performed when a small temperature difference exists, when the temperature difference exceeds the set range, the secondary control module controls the secondary compensation water supply device to be started, water flow is guided into the tail end heat exchange device through the secondary pipeline system, the temperature is adjusted, the target area temperature is maintained at the set temperature, and the target area temperature control precision is guaranteed.
It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A cascade regulation control system in an air conditioning water system comprises a water storage device, a primary water supply device, a pipeline system, a terminal heat exchange device and a secondary compensation water supply device, and is characterized in that the water storage device is connected with the pipeline system, the pipeline system is connected with the primary water supply device, the pipeline system is connected with the terminal heat exchange device, the terminal heat exchange device is connected with a fan system, the fan system is provided with a fresh air temperature detector, the fan system is provided with a fresh air quantity detector, an outlet of the terminal heat exchange device is connected with a temperature sensing module, the temperature sensing module is electrically connected with a temperature difference processing module, the temperature difference processing module is electrically connected with a processing module, the fresh air temperature detector is electrically connected with the processing module, the fresh air quantity detector is electrically connected with the processing module, and the processing module is electrically connected with the secondary control module, the secondary control module is connected with the secondary compensation water supply device, the secondary compensation water supply device is connected with a secondary pipeline system, the secondary pipeline system is connected with a tail end heat exchange device, the tail end heat exchange device is connected with a temperature setting module, and the temperature setting module is electrically connected with the temperature difference processing module.
2. The cascade regulation control system in an air conditioning water system as claimed in claim 1, wherein: the water storage device is respectively connected with the pipeline system and the secondary pipeline system, and the tail ends of the pipeline system and the secondary pipeline system are both connected with the tail end heat exchange device.
3. The cascade regulation control system in an air conditioning water system as claimed in claim 1, wherein: the primary water supply device and the secondary compensation water supply device are both connected with an external power device, and a power system of the secondary compensation water supply device is smaller than that of the primary water supply device.
4. The cascade regulation control system in an air conditioning water system as claimed in claim 1, wherein: and the data after the fresh air temperature detection and the fresh air volume detection are subjected to analog-to-digital conversion, and then the data signals are transmitted to a processing module, and the processing module performs weighting processing on the data signals.
5. The cascade regulation control system in an air conditioning water system as claimed in claim 1, wherein: the temperature setting module carries out operating temperature's settlement, the temperature-sensing module detects terminal heat transfer device's actual temperature, the detection temperature of temperature-sensing module is compared with the temperature of settlement through difference in temperature processing module.
6. The cascade regulation control system in an air conditioning water system as claimed in claim 1, wherein: and the processing module inputs the result data after the comprehensive processing into the secondary control module, and the secondary control module is controlled by a power system of the secondary compensation water supply device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921436510.8U CN210801525U (en) | 2019-09-01 | 2019-09-01 | Cascade regulation control system in air conditioner water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921436510.8U CN210801525U (en) | 2019-09-01 | 2019-09-01 | Cascade regulation control system in air conditioner water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210801525U true CN210801525U (en) | 2020-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921436510.8U Expired - Fee Related CN210801525U (en) | 2019-09-01 | 2019-09-01 | Cascade regulation control system in air conditioner water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210801525U (en) |
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2019
- 2019-09-01 CN CN201921436510.8U patent/CN210801525U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200619 |