CN2769741Y - Dew point calculating controller - Google Patents
Dew point calculating controller Download PDFInfo
- Publication number
- CN2769741Y CN2769741Y CN 200420114193 CN200420114193U CN2769741Y CN 2769741 Y CN2769741 Y CN 2769741Y CN 200420114193 CN200420114193 CN 200420114193 CN 200420114193 U CN200420114193 U CN 200420114193U CN 2769741 Y CN2769741 Y CN 2769741Y
- Authority
- CN
- China
- Prior art keywords
- control valve
- heater
- relative humidity
- dew point
- control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a controller, the aim of which is to provide a constant temperature and humidity controller used for an air conditioning machine set. The utility model comprises a temperature sensor, a control output mechanism, a control valve of a heater, a control valve of a meter cooler, a relative humidity sensor and a control valve of a heater, wherein the temperature sensor and the relative humidity sensor which are installed in a wind channel are connected with the control output mechanism by signal lines; the control valve of the heater and the control valve of the meter cooler are respectively installed on the heater and the meter cooler and are connected with the control output mechanism by signal lines. After adopting a dew-point calculating controller of the utility model, the dew-point deviation is avoided, and the control precision is guaranteed.
Description
Technical field
The utility model relates to a kind of control device, and more particularly, the utility model relates to a kind of constant temperature and humidity control device that is used for the air-conditioning unit.
Background technology
At present, we are employed and that technical literature is introduced, and the constant temperature and humidity dew point control device is behind the surface cooler of air-conditioning unit temperature sensor to be set, with the temperature that measures as dew-point temperature, and with the temperature of this dew point temperature value of measuring and requirement and relative humidity have identical water capacity and the relative humidity under corresponding be that 95% o'clock temperature value (being the setting value of dew-point temperature) compares, regulate the aperture of the surface cooler control valve of air-conditioning unit by PI or PID, make current measurement dew point value trend towards setting value, thereby reach the purpose of the key link-control dew point of constant temperature and humidity control.But in the application of reality, relative humidity through the cooled air of surface cooler does not often reach 95%, perhaps surpass 95%, therefore show air after cold has satisfied dew point according to the temperature value that measures setting value requirement, but actual air water capacity produces deviation with the water capacity of setting value, often causes the relative humidity of the air after the post bake higher or on the low side thus.
Summary of the invention
Main purpose of the present utility model is to overcome deficiency of the prior art, and a kind of constant temperature and humidity control device that is used for the air-conditioning unit is provided.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:
The utility model provides a kind of calculating dew point control device that is used for constant temperature and humidity control, comprise temperature sensor, control output mechanism, heater control valve and surface cooler control valve, also comprise relative humidity sensor and heater control valve, described temperature sensor and relative humidity sensor are installed in the air channel, be connected to the control output mechanism by holding wire, heater control valve and surface cooler control valve are installed in respectively on heater and the surface cooler, are connected to the control output mechanism by holding wire.
Temperature sensor described in the utility model and relative humidity sensor are installed in the supply air duct.
Temperature sensor described in the utility model and relative humidity sensor are installed in the return airway.
Temperature sensor described in the utility model and relative humidity sensor are installed on respectively in supply air duct or the return airway.
Compared with prior art, the beneficial effects of the utility model are:
After adopting calculating dew point control device of the present invention, the deviation of dew point is avoided, thereby the control deviation situation of humiture obtains correcting, and has saved a sensor that dew point temperature measurements is required.Temperature and relative humidity according to air-supply or return air calculate theoretic dew-point temperature (being that relative humidity is 100% o'clock temperature), this dew-point temperature is actually the value of having represented a definite water capacity, air after air-conditioning unit table is cold is no matter whether its relative humidity surpasses or be lower than 95%, as long as after air-treatment reached the water capacity of setting dew point requirement to its water capacity, adjust the post bake amount, control accuracy promptly is guaranteed.
Description of drawings
Fig. 1 is the device connection diagram of the utility model embodiment 1.
Fig. 2 is that the utility model is measured dew point control deviation generation schematic diagram.
Fig. 3 is an air-treatment effect schematic diagram of the present utility model.
The specific embodiment
With reference to figures 1 through 3, will be described in detail the utility model below.
Specific embodiment 1 provides a kind of calculating dew point control device that is used for constant temperature and humidity control.Set gradually heater 1, spray equipment 2, surface cooler 3, after-heater 4 and blower fan 5 in the air-conditioning unit No. one time, blower fan 5 outlets are air channel 12.Temperature sensor 6, relative humidity sensor 7 all are installed in the air channel 12, and by holding wire be connected to control output mechanism 11, heater control valve 8, an after-heater control valve 10 are installed on respectively on heater 1 and the after-heater 4, surface cooler control valve 9 is installed on the surface cooler 3, and No. one time heater control valve 8, after-heater control valve 10 and surface cooler control valve 9 all are connected to control output mechanism 11 by holding wire.
Temperature sensor described in the utility model and relative humidity sensor can be installed in supply air duct or the return airway according to the control purpose.
Adopt each device feature to be prior art in the utility model, in the control output mechanism integrated circuit modules with computing function is set.
The mode that its technical problem that solves the utility model adopts is: export on the main air delivery duct or air-return duct installation temperature and humidity sensor at the air-conditioning unit, by the air-supply of detection air-conditioning unit or the temperature and the relative humidity of room return air, calculate the pairing dew-point temperature of this temperature and relative humidity, the temperature and the pairing dew point temperature value of relative humidity of this calculating dew point value and setting are compared, the table of regulating the air-conditioning unit by PI or PID is cold, the aperture of control valves such as heating, make current calculating dew point value trend towards setting value, thereby reach the purpose of the key link-control dew point in the thermostatic constant wet control system.
At last, it is also to be noted that what more than enumerate only is specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, and many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model all should be thought protection domain of the present utility model.
Claims (4)
1, a kind of calculating dew point control device that is used for constant temperature and humidity control, comprise temperature sensor, control output mechanism, heater control valve and surface cooler control valve, it is characterized in that, also comprise relative humidity sensor and heater control valve, described temperature sensor and relative humidity sensor are installed in the air channel, be connected to the control output mechanism by holding wire, heater control valve and surface cooler control valve are installed in respectively on heater and the surface cooler, are connected to the control output mechanism by holding wire.
2, calculating dew point control device according to claim 1 is characterized in that, described temperature sensor and relative humidity sensor are installed in the supply air duct.
3, calculating dew point control device according to claim 1 is characterized in that, described temperature sensor and relative humidity sensor are installed in the return airway.
4, calculating dew point control device according to claim 1 is characterized in that, described temperature sensor and relative humidity sensor are installed on respectively in supply air duct or the return airway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114193 CN2769741Y (en) | 2004-12-15 | 2004-12-15 | Dew point calculating controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420114193 CN2769741Y (en) | 2004-12-15 | 2004-12-15 | Dew point calculating controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2769741Y true CN2769741Y (en) | 2006-04-05 |
Family
ID=36690821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420114193 Expired - Fee Related CN2769741Y (en) | 2004-12-15 | 2004-12-15 | Dew point calculating controller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2769741Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029881B (en) * | 2007-03-23 | 2010-08-25 | 浙江大学 | Method for measuring and controlling assembled air-conditioner dew point |
| CN102003311A (en) * | 2010-12-17 | 2011-04-06 | 南通力达环保设备有限公司 | Engine standard intake device adopting air dew point adjustment and fan variable frequency control |
| CN107355954A (en) * | 2017-08-04 | 2017-11-17 | 上海吉荣空调科技有限公司 | A kind of all-fresh air thermostatic constant wet control system and method |
-
2004
- 2004-12-15 CN CN 200420114193 patent/CN2769741Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101029881B (en) * | 2007-03-23 | 2010-08-25 | 浙江大学 | Method for measuring and controlling assembled air-conditioner dew point |
| CN102003311A (en) * | 2010-12-17 | 2011-04-06 | 南通力达环保设备有限公司 | Engine standard intake device adopting air dew point adjustment and fan variable frequency control |
| CN107355954A (en) * | 2017-08-04 | 2017-11-17 | 上海吉荣空调科技有限公司 | A kind of all-fresh air thermostatic constant wet control system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101029881B (en) | Method for measuring and controlling assembled air-conditioner dew point | |
| CN106440222B (en) | Clean air-conditioning system and its control method | |
| CA2596151A1 (en) | Method and apparatus for controlling ventilation system | |
| US9091454B2 (en) | Air change rate measurement and control | |
| CN204880547U (en) | Central air conditioning fan coil unsteady flow volume temperature control device | |
| CN104296329B (en) | High-precision standard laboratory with constant temperature and constant humidity control system | |
| CN112240634B (en) | Variable-distance air conditioner air supply tail end capable of balancing air outlet resistance and adjusting method thereof | |
| CN102213477A (en) | Intelligent network energy conservation system for constant temperature and humidity air conditioner | |
| CN2769741Y (en) | Dew point calculating controller | |
| CN2909079Y (en) | Control system of air conditioner | |
| CN111947278A (en) | Cooling system and control method thereof | |
| CN113375284B (en) | External fan control method and device and air conditioner | |
| CN112361530B (en) | High-precision environment intelligent control system and control method based on load prediction | |
| CN107940698B (en) | The cold station air-conditioning system of integrated form and its control method | |
| CN113587220A (en) | Control method of combined air-conditioning box | |
| CN115127202B (en) | Control method for adjusting indoor temperature and humidity based on dew point temperature | |
| CN203323256U (en) | Air conditioner box capable of resetting constant fresh air volume | |
| CN203100067U (en) | Room temperature controller | |
| CN106679019B (en) | A kind of method and system of VAV system starting air balance | |
| CN214174947U (en) | Constant temperature and humidity control system of detection room | |
| CN204923216U (en) | Frequency conversion constant temperature and humidity laboratory precision air conditioning | |
| CN103344030A (en) | Air conditioning cabinet capable of setting constant fresh air volume again | |
| CN1299076C (en) | Air supply device for variable air delivery through floor | |
| JPS61153338A (en) | Gas-fired instantaneous hot water supplier | |
| JP2014070862A (en) | Humidification element replacement timing determination method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20101215 |