Constant temperature and humidity chamber of inverter compressor
By adopting a variable frequency compressor and PID algorithm regulation, the problem of high energy consumption of fixed frequency compressors has been solved, and energy-saving operation of the constant temperature and humidity chamber has been achieved.
Patent Information
- Application Number
- CN202520010700.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing constant temperature and humidity chambers use fixed-frequency compressors that run continuously, resulting in huge energy consumption and making it difficult to meet the needs of energy conservation and emission reduction.
It adopts a variable frequency compressor, which connects multiple low-power compressors in parallel and uses a PID algorithm to adjust the operating frequency and the output ratio of heating and humidification, thereby achieving low power consumption operation.
It effectively reduces power consumption and water consumption, achieving energy-saving operation of the constant temperature and humidity chamber.
Smart Images
Figure CN223710057U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to sample box technical field especially relates to a constant temperature and humidity box of frequency conversion compressor. BACKGROUND
[0002] With global warming, the world countries propose strict requirement of energy conservation and emission reduction, and how to save energy of long-term running electric equipment becomes the main trend.
[0003] The constant temperature and humidity box mainly adopts fixed frequency compressor, and the compressor adopts long-term open working mode, balances temperature and humidity through heating and humidifying, since the fixed frequency compressor is long-term open, and the power is mostly large to be compatible with the requirement of refrigeration and dehumidification, long-term use leads to huge energy consumption, and becomes the hidden power consumer of laboratory. UTILITY MODEL CONTENT
[0004] The utility model aims at solving the shortcoming in prior art, and proposes a constant temperature and humidity box of frequency conversion compressor.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme: a constant temperature and humidity box of frequency conversion compressor, including box body and sample storage box, the sample storage box is installed in the box body, the front of the box body and the front of the sample storage box are all open, the sample storage box is equipped with the partition plate, the area between the partition plate and the rear wall of the sample storage box is the air duct interlayer, the area between the partition plate and the front wall of the sample storage box is the sample placement area, the sample placement area is equipped with the adjustable spacing object plate, the box body is equipped with the mounting plate and is arranged in L type, the mounting plate is located at the rear end and the lower end of the sample storage box, the mounting plate and the sample storage box and the box body and the sample storage box are all equipped with the heat preservation layer, can effectively reduce the heat loss, reduce the compressor operating frequency, reach the energy saving effect, the glass door and the protection door are hingedly connected at the opening of the box body, the glass door is equipped with the sealing band at the opening of the box body, the sealing band can be used to keep the stability of the environment in the sample storage box, the state of the goods in the sample storage box is convenient for being observed through the setting of the glass door, the glass door and the protection door are all equipped with the door lock, the protection door is the outer door, the glass door is the inner door, the protection door is divided into the upper and lower two doors, wherein, the length of the upper protection door is greater than the length of the lower protection door, the protection door is equipped with the decoration strip, the upper protection door is equipped with the sealing strip and the controller touch screen controller, the controller and the touch screen are integrally arranged, the glass door and the protection door are also equipped with the electronic lock, the safety of the sample is guaranteed through the double design of the mechanical lock and the electronic lock, and the effectiveness of data is guaranteed.
[0006] Further description of the above technical scheme:
[0007] The rear end of the sample storage box is sequentially provided from top to bottom with a fan, a heater, an evaporator and a water pan, the fan, the heater, the evaporator, a steam inlet and the water pan are located in an air duct interlayer, the partition plate is provided with an outlet air and an inlet air, the outlet air is located at the lower side, and the inlet air is located at the upper side, the water pan is connected to the outside of the box through a hole in the side wall of the box to ensure the stability of the humidity in the box.
[0008] As a further description of the above technical solution:
[0009] The area between the mounting plate and the rear end of the box is an electrical element installation area, the electrical element installation area is sequentially provided from top to bottom with a low-voltage transformer and a steam generator, the steam generator extends through the mounting plate into the air duct interlayer, the area between the mounting plate and the bottom wall of the box is a device installation area, and the device installation area is sequentially provided from rear to front with a condenser, a variable frequency compressor and a frequency converter.
[0010] As a further description of the above technical solution:
[0011] The side of the box is further provided with a test hole, a power switch, a data recorder, a protector, a water inlet and a condenser air inlet, and the operation temperature and humidity data of the constant temperature and humidity box can be recorded in real time.
[0012] As a further description of the above technical solution:
[0013] The electrical equipment in the box is electrically connected with the low-voltage transformer.
[0014] As a further description of the above technical solution:
[0015] The controller has a multi-way output function, at least including: heating output, humidification output, refrigeration output, printing output, TCP / IP output; the touch screen controller is connected with the frequency converter and the compressor in a communication mode; the controller has a permission management function and an audit tracking function.
[0016] As a further description of the above technical solution:
[0017] The bottom wall of the box is provided with universal wheels, and the box is further provided with a travel switch for recording the door opening and closing state, and the sample storage box is provided with a plurality of temperature and humidity sensors.
[0018] The utility model has the advantages of:
[0019] The variable frequency compressor can adjust the operation frequency, the idea of using multiple small power variable frequency compressors in parallel is adopted, according to the difference between the set value and the measured value, the controller PID algorithm is combined, the compressor operation frequency is controlled in real time, the output proportion of heating and humidifying is adjusted, the equipment is in the micro-power consumption operation state for a long time, a large amount of electric energy can be saved, the water consumption is greatly reduced, and the economic prospect is great. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is a whole schematic view of the constant temperature and humidity box of the variable frequency compressor of the utility model;
[0021] Figure 2 It is an expanded schematic view of the upper protection door of the constant temperature and humidity box of the variable frequency compressor of the utility model;
[0022] Figure 3 It is a side view of the constant temperature and humidity box of the variable frequency compressor of the utility model;
[0023] Figure 4 It is a side sectional schematic view of the constant temperature and humidity box of the variable frequency compressor of the utility model;
[0024] Figure 5 It is a rear end equipment installation schematic view of the box body of the constant temperature and humidity box of the variable frequency compressor of the utility model;
[0025] Figure 6 It is a partition plate structure installation schematic view of the box body of the constant temperature and humidity box of the variable frequency compressor of the utility model.
[0026] Legend:
[0027] 1, box body; 2, sample storage box; 3, partition plate; 4, air duct interlayer; 5, sample placing area; 6, mounting plate; 7, heat preservation layer; 8, glass door; 9, protection door; 10, touch screen; 11, fan; 12, heater; 13, evaporator; 14, water pan; 15, outlet air; 16, air inlet; 17, low-voltage transformer; 18, steam generator; 19, condenser; 20, variable frequency compressor; 21, frequency converter; 22, test hole; 23, power switch; 24, data recorder; 25, protector; 26, water inlet; 27, condenser air inlet; 28, universal wheel; 29, travel switch; 30, temperature and humidity sensor; 31, electric element mounting area; 32, equipment mounting area. DETAILED DESCRIPTION
[0028] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.
[0029] Referring to Figures 1 to 6 The utility model discloses a constant temperature and humidity box of frequency conversion compressor, including box 1 and sample storage box 2, sample storage box 2 installs in the box 1, and the front of box 1 and the front of sample storage box 2 are all open settings, be equipped with the partition 3 in sample storage box 2, the area between partition 3 and the rear wall of sample storage box 2 is air duct interlayer 4, the area between partition 3 and the front wall of sample storage box 2 is sample display area 5, be equipped with the adjustable spacing of the thing plate in sample display area 5, be equipped with mounting plate 6 in the box 1 and present L type setting, mounting plate 6 is located at the rear end and the lower end of sample storage box 2, and mounting plate 6 and sample storage box 2 between and the box 1 and sample storage box 2 between are all equipped with heat preservation layer 7, can effectively reduce heat loss, reduce compressor operating frequency, reach the effect of energy saving, the opening of box 1 is hingedly connected with glass door 8 and protective door 9, glass door 8 and the opening of box 1 are equipped with sealing tape, and sealing tape can be used to keep the stability of the environment in sample storage box 2, through the setting of glass door 8, the state of the article in sample storage box 2 is convenient for observation, glass door 8 and protective door 9 are all equipped with door lock, protective door 9 is outer door, glass door 8 is inner door, protective door 9 divides into two doors, wherein, the length of the upper protective door 9 is greater than the length of the lower protective door 9, and the upper protective door 9 is equipped with a decorative strip, and the lower protective door 9 is equipped with a sealing strip and a controller touch screen controller 10, the controller and the touch screen 10 are integrally arranged, the touch screen and the controller 10 have three-level authority, audit tracking function, gate opening record function, to ensure the integrity and consistency of data, glass door 8 and protective door 9 are also equipped with electronic lock, through the double design of mechanical lock and electronic lock, the safety of the sample is guaranteed, and the effectiveness of the data is ensured.
[0030] The rear end of the sample storage box 2 is sequentially provided with a fan 11, a heater 12, an evaporator 13 and a water pan 14 from top to bottom, the fan 11, the heater 12, the evaporator 13, a steam inlet and the water pan 14 are located in the air duct interlayer 4, the partition 3 is provided with an outlet air 15 and an air inlet 16, the outlet air 15 is located at the lower side, and the air inlet 16 is located at the upper side, the water pan 14 discharges condensed water to the outside of the box 1 through the hole in the side wall of the box 1, so as to ensure the stability of the humidity in the box 1.
[0031] The area between the mounting plate 6 and the rear end of the cabinet 1 is an electrical component mounting area 31, in which a low-voltage transformer 17 and a steam generator 18 are mounted in sequence from top to bottom, the steam generator 18 extends through the mounting plate 6 into the air duct layer 4, the area between the mounting plate 6 and the bottom wall of the cabinet 1 is an equipment mounting area 32, in which a condenser 19, a variable frequency compressor 20 and a frequency converter 21 are mounted in sequence from rear to front, wherein the variable frequency compressor 20 uses multiple small power variable frequency compressors in parallel.
[0032] The side of the cabinet 1 is also provided with a test hole 22, a power switch 23, a data recorder 24, a protector 25, a water inlet 26 and a condenser air inlet 27, which can record the operation temperature and humidity data of the constant temperature and humidity chamber in real time.
[0033] The electrical equipment in the cabinet 1 is electrically connected with the low-voltage transformer 17.
[0034] The controller has a multi-output function, at least including: heating output, humidification output, refrigeration output, printing output, TCP / IP output; the touch screen controller 10 is connected with the frequency converter and the compressor in a communication mode; the controller has a permission management function and an audit tracking function;
[0035] The bottom wall of the cabinet 1 is provided with universal wheels 28, and the cabinet 1 is also provided with a travel switch 29 for recording the door opening and closing state, and the sample storage box 2 is provided with a plurality of temperature and humidity sensors 30.
[0036] The controller is electrically connected with the temperature and humidity sensor to receive and record the temperature and humidity data measured by the sensor in real time; the controller is electrically connected with the heater, the steam generator, the frequency converter of the refrigeration system, and the frequency converter is connected with the variable frequency compressor.
[0037] According to the received temperature data, the controller increases the heating output ratio through the PID algorithm, and at the same time reduces the output ratio of the refrigeration output, adjusts the frequency converter, and reduces the operating power of the variable frequency compressor, so that the device is quickly heated.
[0038] According to the received temperature data, the controller reduces the heating output ratio through the PID algorithm, and at the same time increases the output ratio of the refrigeration output, adjusts the frequency converter, and increases the operating power of the variable frequency compressor, so that the device is quickly cooled.
[0039] When the temperature of the constant temperature and humidity chamber tends to be stable, the controller reduces the heating output ratio and the refrigeration output ratio through the PID algorithm, adjusts the frequency converter, and reduces the operating power of the variable frequency compressor, so that the heating and refrigeration of the constant temperature and humidity chamber are in a low-power operation state, saving electric energy.
[0040] When the temperature of the constant temperature and humidity chamber tends to be stable, the controller reduces the output proportion of the heating output and the output proportion of the refrigeration output by a PID algorithm, adjusts the frequency converter, and reduces the operation power of the variable frequency compressor.
[0041] When the constant temperature and humidity chamber uses extreme conditions such as high temperature and low humidity, low temperature and high humidity, and low temperature and low humidity, a single compressor cannot meet the current empty state, and the second compressor can be started to increase the refrigeration or dehumidification capacity, so that the equipment reaches the required operating condition.
[0042] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments similar to the technical solution, which should belong to the protection scope of the present application.
Claims
1. A constant temperature and humidity chamber for a variable frequency compressor, comprising a chamber body (1) and a sample storage chamber (2), wherein the sample storage chamber (2) is installed inside the chamber body (1), and both the front of the chamber body (1) and the front of the sample storage chamber (2) are open. A partition plate (3) is provided inside the sample storage chamber (2), the area between the partition plate (3) and the rear wall of the sample storage chamber (2) is an air duct interlayer (4), and the area between the partition plate (3) and the front wall of the sample storage chamber (2) is a sample placement area (5). An adjustable-spacing shelf is provided in the sample placement area (5). An mounting plate (6) is provided inside the chamber body (1) and is L-shaped. The mounting plate (6) is located at the rear and lower ends of the sample storage chamber (2). A heat insulation layer (7) is provided between the plate (6) and the sample storage box (2) and between the box body (1) and the sample storage box (2), which can effectively reduce heat loss and reduce the operating frequency of the compressor, thus achieving energy saving. A glass door (8) and a protective door (9) are hinged at the opening of the box body (1). A sealing strip is installed at the opening of the glass door (8) and the box body (1). The sealing strip can be used to maintain the stability of the internal environment of the sample storage box (2). The glass door (8) facilitates observation of the status of the items inside the sample storage box (2). Both the glass door (8) and the protective door (9) are equipped with door locks. The protective door (9) is the outer door, and the glass door (8) is the inner door. The protective door (9) is divided into upper and lower doors. The upper protective door (9) is longer than the lower protective door (9). The protective door (9) is equipped with a decorative strip. The upper protective door (9) is equipped with a sealing strip and a touch screen controller (10). The controller (10) is integrated. The protective door (9) is also equipped with an electronic lock. The dual design of mechanical lock and electronic lock ensures the safety of the sample and guarantees the validity of the data.
2. The constant temperature and humidity chamber for a variable frequency compressor according to claim 1, characterized in that: The sample storage box (2) is equipped with a fan (11), a heater (12), an evaporator (13) and a water collection tray (14) from top to bottom at the rear end. The fan (11), heater (12), evaporator (13), steam inlet and water collection tray (14) are located in the air duct interlayer (4). The partition plate (3) is provided with an outlet air (15) and an air inlet (16). The outlet air (15) is located at the bottom and the air inlet (16) is located at the top. The water collection tray (14) discharges condensate to the outside of the box (1) through the holes on the side wall of the box (1) to ensure the stability of the humidity inside the box (1).
3. The constant temperature and humidity chamber for a variable frequency compressor according to claim 1, characterized in that: The area between the mounting plate (6) and the rear end of the housing (1) is the electrical component installation area (31). In the electrical component installation area (31), a low-voltage transformer (17) and a steam generator (18) are installed sequentially from top to bottom. The steam generator (18) extends through the mounting plate (6) into the air duct interlayer (4). The area between the mounting plate (6) and the bottom wall of the housing (1) is the equipment installation area (32). In the equipment installation area (32), a condenser (19), a variable frequency compressor (20), and a frequency converter (21) are installed sequentially from back to front.
4. The constant temperature and humidity chamber for a variable frequency compressor according to claim 1, characterized in that: The side of the chamber (1) is also equipped with a test hole (22), a power switch (23), a data logger (24), a protector (25), a water inlet (26), and a condenser air inlet (27)(16), which can record the operating temperature and humidity data of the constant temperature and humidity chamber in real time.
5. The constant temperature and humidity chamber for a variable frequency compressor according to claim 1, characterized in that: All electrical equipment inside the enclosure (1) is electrically connected to the low-voltage transformer (17).
6. The constant temperature and humidity chamber for a variable frequency compressor according to claim 1, characterized in that: The controller has multiple output functions, including at least: heating output, humidification output, cooling output, printing output, and TCP / IP output; the touch screen controller (10) is connected to the frequency converter and compressor via communication; the controller has access control function and audit tracking function.
7. The constant temperature and humidity chamber for a variable frequency compressor according to claim 1, characterized in that: The bottom wall of the box (1) is provided with casters (28), and the box (1) is also provided with limit switches (29) to record the opening and closing status of the door. The sample storage box (2) is provided with multiple temperature and humidity sensors (30).