阅读说明：本技术 一种风管全新风输送温度自适应控制装置及控制方法 (Air pipe full fresh air conveying temperature self-adaptive control device and control method ) 是由 秦岭 孙庆和 王社儒 邓胡 刘荣 袁四美 秦铨 张天岩 于 2021-08-19 设计创作，主要内容包括：本发明公开一种风管全新风输送温度自适应控制装置及控制方法；该装置包括一级送风机组自适应控制装置和二级送风机组自适应控制装置；一级送风机组自适应控制装置设置于室外风管远离室内风管的一端,二级送风机组自适应控制装置设置于室外风管与室内风管连通位置处；一级送风机组自适应控制装置用于控制送风温度与目标温度同步控制,同时控制湿度；二级送风机组自适应控制装置用于目标温度自动调节补偿；一级送风机组自适应控制装置和二级送风机组自适应控制装置通过上位组态实现联动控制。本发明基于上述装置的控制方法,优化了控制方式,能够有效改善温度控制滞后效应,实现整个变温试验温度全自动控制。(The invention discloses a self-adaptive control device and a control method for the full fresh air conveying temperature of an air pipe; the device comprises a first-stage air blower unit self-adaptive control device and a second-stage air blower unit self-adaptive control device; the first-stage air feeder unit self-adaptive control device is arranged at one end of the outdoor air pipe, which is far away from the indoor air pipe, and the second-stage air feeder unit self-adaptive control device is arranged at the position where the outdoor air pipe is communicated with the indoor air pipe; the self-adaptive control device of the primary air supply unit is used for controlling the air supply temperature and the target temperature synchronously and controlling the humidity at the same time; the self-adaptive control device of the secondary air supply unit is used for automatically adjusting and compensating the target temperature; and the self-adaptive control device of the primary air blower unit and the self-adaptive control device of the secondary air blower unit realize linkage control through upper configuration. The control method based on the device optimizes the control mode, can effectively improve the temperature control hysteresis effect, and realizes full-automatic control of the temperature of the whole variable temperature test.)

1. The utility model provides a temperature self-adaptation controlling means is carried in whole fresh air of tuber pipe which characterized in that: the system comprises a first-stage air blower unit self-adaptive control device and a second-stage air blower unit self-adaptive control device; the self-adaptive control device of the primary air supply unit is arranged at one end of the outdoor air pipe, which is far away from the indoor air pipe, and the self-adaptive control device of the secondary air supply unit is arranged at the position where the outdoor air pipe is communicated with the indoor air pipe; the self-adaptive control device of the primary air supply unit is used for controlling the air supply temperature and the target temperature synchronously and controlling the humidity at the same time; the self-adaptive control device of the secondary air blower set is used for automatically adjusting and compensating the target temperature; and the self-adaptive control device of the primary air blower unit and the self-adaptive control device of the secondary air blower unit realize linkage control through upper configuration.

2. The adaptive air duct fresh air conveying temperature control device according to claim 1, characterized in that: the self-adaptive control device of the primary air supply unit comprises a fresh air surface cooling proportional valve, a normal temperature surface cooling proportional valve, a low temperature surface cooling proportional valve and an electric heating proportional valve which are sequentially communicated through a fresh air pipeline; an electric regulating valve is arranged at one end of the fresh air surface-cooling proportional valve, which is far away from the normal temperature surface-cooling proportional valve, and a processing fan is arranged at one end of the electric heating proportional valve, which is far away from the low temperature surface-cooling proportional valve; the fresh air pipeline is connected with a regeneration air pipeline through a connecting part, and a regeneration fan and a regeneration electric heater are arranged on the regeneration air pipeline; and the tail end of the fresh air pipeline is communicated with the outdoor air pipe.

3. The adaptive air duct fresh air conveying temperature control device according to claim 2, characterized in that: the self-adaptive control device of the secondary air blower unit comprises a normal-temperature surface cooling proportional valve, a low-temperature surface cooling proportional valve and an electric heating proportional valve which are sequentially communicated through a pipeline, one end of the pipeline is communicated with the outdoor air pipe, and the other end of the pipeline is communicated with the indoor air pipe.

4. The adaptive air duct fresh air conveying temperature control device according to claim 3, characterized in that: and the pipeline and the fresh air pipeline are respectively provided with a fire damper.

5. A self-adaptive control method for the fresh air conveying temperature of an air pipe is characterized by comprising the following steps: the method comprises the following steps:

during testing, the first-stage air feeder group self-adaptive control device sends out a heating or cooling test designation, the second-stage air feeder group self-adaptive control device receives the heating or cooling test designation through the upper-stage machine configuration software, and the second-stage air feeder group self-adaptive control device synchronously heats or cools along with the first-stage air feeder group self-adaptive control device; and setting a target temperature real-time deviation alarm value in the test process, and triggering an acousto-optic alarm once the real-time temperature is greater than the upper limit value and the lower limit value of the target temperature set value.

6. The air duct fresh air conveying temperature self-adaptive control method according to claim 5, characterized in that: the test comprises a high temperature test and a low temperature test; the self-adaptive control device of the primary air supply unit comprises a high temperature rise stage, a high temperature leveling stage, a high temperature lowering stage and a high temperature leveling stage when switching the high temperature test through a temperature change switching button of configuration software of an upper computer; the self-adaptive control device of the first-stage air blower unit is in a high-temperature rise stage, and the self-adaptive control device of the second-stage air blower unit is in a temperature rise stage; the self-adaptive control device of the first-stage air blower unit is in a high-temperature cooling stage, and the self-adaptive control device of the second-stage air blower unit is in a cooling stage; the self-adaptive control device of the first-stage air blower unit is in a high-temperature leveling stage, and the self-adaptive control device of the second-stage air blower unit is in a leveling temperature raising stage; the self-adaptive control device of the first-stage air blower unit is in a high-temperature leveling stage, and the self-adaptive control device of the second-stage air blower unit is in a leveling stage; when the self-adaptive control device of the primary air supply unit switches the low-temperature test through the temperature-changing switching button of the configuration software of the upper computer, the self-adaptive control device of the primary air supply unit is divided into a low-temperature reduction stage, a low-temperature leveling stage, a low-temperature rise stage and a low-temperature leveling stage; the self-adaptive control device of the first-stage air blower unit is in a low-temperature rise stage, and the self-adaptive control device of the second-stage air blower unit is in a rise stage; the self-adaptive control device of the first-stage air blower unit is in a low-temperature reduction stage, and the self-adaptive control device of the second-stage air blower unit is in a temperature reduction stage; the self-adaptive control device of the first-stage air blower unit is in a low-temperature leveling stage, and the self-adaptive control device of the second-stage air blower unit is in a leveling temperature stage; the self-adaptive control device of the first-level air blower unit is in a low-temperature leveling stage, and the self-adaptive control device of the second-level air blower unit is in a leveling stage.

Technical Field

The invention relates to the technical field of air supply devices, in particular to a self-adaptive control device and a control method for the fresh air conveying temperature of an air pipe.

Background

In the actual temperature-changing test, the working environment of the target temperature and the nature and characteristics of the target temperature are not constant, but slowly change. Temperature control of a variable temperature test often meets the problems of working environment change, more nonlinear influence factors, low system response speed, large fluctuation when disturbed, strong coupling, difficulty in constructing a reasonable mathematical model and the like, and a traditional PID controller often generates large overshoot and spends a long time on adjustment, so that the transient state is prolonged, and the stability of the system is poor.

Because the long-distance air pipe conveying environment is easy to change in weather and has more nonlinear influence factors, the air supply of the air conditioning unit needs to be conveyed to the target temperature for a long time to change, and the response speed of the system is low. Meanwhile, the temperature change test has a plurality of stages, the requirement on the precision of the parameters is high, each parameter needs to be accurately adjusted, and as the outdoor environment temperature changes violently, the field needs to be kept unattended for 24 hours from the beginning of the temperature change test. The working environment is severe, noise and vibration are often accompanied, and abnormal heating (no heating or heating uncontrolled) in the test process caused by the damage of a heating device, a controller and a temperature sensor can occur. If the fault occurs and cannot be found in time, if the fault occurs, the test result is incorrect due to the fact that the temperature is not in the specified range, and if the fault occurs, the tested product is damaged and even a fire disaster occurs.

Disclosure of Invention

The invention aims to provide a self-adaptive control device and a control method for the full fresh air conveying temperature of an air pipe, which are used for solving the problems in the prior art, optimizing the control mode, effectively improving the temperature control hysteresis effect and realizing the full automatic control of the temperature of the whole variable temperature test.

In order to achieve the purpose, the invention provides the following scheme:

the invention provides a wind pipe full fresh air conveying temperature self-adaptive control device, which comprises a primary air blower unit self-adaptive control device and a secondary air blower unit self-adaptive control device; the self-adaptive control device of the primary air supply unit is arranged at one end of the outdoor air pipe, which is far away from the indoor air pipe, and the self-adaptive control device of the secondary air supply unit is arranged at the position where the outdoor air pipe is communicated with the indoor air pipe; the self-adaptive control device of the primary air supply unit is used for controlling the air supply temperature and the target temperature synchronously and controlling the humidity at the same time; the self-adaptive control device of the secondary air blower set is used for automatically adjusting and compensating the target temperature; and the self-adaptive control device of the primary air blower unit and the self-adaptive control device of the secondary air blower unit realize linkage control through upper configuration.

Optionally, the first-stage air feeder unit self-adaptive control device comprises a fresh air meter cooling proportional valve, a normal temperature meter cooling proportional valve, a low temperature meter cooling proportional valve and an electric heating proportional valve which are sequentially communicated through a fresh air pipeline; an electric regulating valve is arranged at one end of the fresh air surface-cooling proportional valve, which is far away from the normal temperature surface-cooling proportional valve, and a processing fan is arranged at one end of the electric heating proportional valve, which is far away from the low temperature surface-cooling proportional valve; the fresh air pipeline is connected with a regeneration air pipeline through a connecting part, and a regeneration fan and a regeneration electric heater are arranged on the regeneration air pipeline; and the tail end of the fresh air pipeline is communicated with the outdoor air pipe.

Optionally, the adaptive control device of the secondary air blower unit comprises a normal-temperature surface-cooling proportional valve, a low-temperature surface-cooling proportional valve and an electric heating proportional valve which are sequentially communicated through a pipeline, one end of the pipeline is communicated with the outdoor air pipe, and the other end of the pipeline is communicated with the indoor air pipe.

Optionally, the pipeline and the fresh air pipeline are respectively provided with a fire damper.

The invention also provides a self-adaptive control method for the full fresh air conveying temperature of the air pipe, which comprises the following steps:

during testing, the first-stage air feeder group self-adaptive control device sends out a heating or cooling test designation, the second-stage air feeder group self-adaptive control device receives the heating or cooling test designation through the upper-stage machine configuration software, and the second-stage air feeder group self-adaptive control device synchronously heats or cools along with the first-stage air feeder group self-adaptive control device; and setting a target temperature real-time deviation alarm value in the test process, and triggering an acousto-optic alarm once the real-time temperature is greater than the upper limit value and the lower limit value of the target temperature set value.

Optionally, the test comprises a high temperature test and a low temperature test; the self-adaptive control device of the primary air supply unit comprises a high temperature rise stage, a high temperature leveling stage, a high temperature lowering stage and a high temperature leveling stage when switching the high temperature test through a temperature change switching button of configuration software of an upper computer; the self-adaptive control device of the first-stage air blower unit is in a high-temperature rise stage, and the self-adaptive control device of the second-stage air blower unit is in a temperature rise stage; the self-adaptive control device of the first-stage air blower unit is in a high-temperature cooling stage, and the self-adaptive control device of the second-stage air blower unit is in a cooling stage; the self-adaptive control device of the first-stage air blower unit is in a high-temperature leveling stage, and the self-adaptive control device of the second-stage air blower unit is in a leveling temperature raising stage; the self-adaptive control device of the first-stage air blower unit is in a high-temperature leveling stage, and the self-adaptive control device of the second-stage air blower unit is in a leveling stage; when the self-adaptive control device of the primary air supply unit switches the low-temperature test through the temperature-changing switching button of the configuration software of the upper computer, the self-adaptive control device of the primary air supply unit is divided into a low-temperature reduction stage, a low-temperature leveling stage, a low-temperature rise stage and a low-temperature leveling stage; the self-adaptive control device of the first-stage air blower unit is in a low-temperature rise stage, and the self-adaptive control device of the second-stage air blower unit is in a rise stage; the self-adaptive control device of the first-stage air blower unit is in a low-temperature reduction stage, and the self-adaptive control device of the second-stage air blower unit is in a temperature reduction stage; the self-adaptive control device of the first-stage air blower unit is in a low-temperature leveling stage, and the self-adaptive control device of the second-stage air blower unit is in a leveling temperature stage; the self-adaptive control device of the first-level air blower unit is in a low-temperature leveling stage, and the self-adaptive control device of the second-level air blower unit is in a leveling stage.

Compared with the prior art, the invention has the following technical effects:

the invention adopts an advanced temperature control strategy, can utilize the automatic compensation control of the air supply temperature of the secondary air supply unit to compensate the heat loss of the target temperature in advance, effectively improves the hysteresis effect of temperature control and realizes the full-automatic control of the temperature of the whole variable temperature test. And setting a target temperature real-time deviation alarm value, and triggering an acousto-optic alarm to remind personnel to intervene once the real-time temperature is greater than the upper limit value and the lower limit value of the target temperature set value.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

FIG. 1 is a schematic diagram of an arrangement of a full fresh air conveying temperature self-adaptive control device of an air duct according to the present invention;

FIG. 2 is a schematic diagram of a configuration of an adaptive control apparatus for a primary blower unit according to the present invention;

FIG. 3 is a schematic diagram of the adaptive control apparatus for the secondary blower unit according to the present invention;

FIG. 4 is a schematic diagram of four stages of a self-adaptive control device of a primary blower set during a high temperature test;

FIG. 5 is a schematic diagram of four stages of a self-adaptive control device of a primary blower set during a low temperature test;

the system comprises an air pipe full fresh air conveying temperature self-adaptive control device 100, a primary air blower unit self-adaptive control device 1, a secondary air blower unit self-adaptive control device 2, an outdoor air pipe 3, an indoor air pipe 4, a fresh air pipeline 5, a fresh air surface cooling proportional valve 6, a normal temperature surface cooling proportional valve 7, a low temperature surface cooling proportional valve 8, an electric heating proportional valve 9, an electric adjusting valve 10, a processing fan 11, a regeneration air pipeline 12, a regeneration fan 13, a regeneration electric heater 14, a pipeline 15 and a fire prevention valve 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention aims to provide a self-adaptive control device and a control method for the full fresh air conveying temperature of an air pipe, which are used for solving the problems in the prior art, optimizing the control mode, effectively improving the temperature control hysteresis effect and realizing the full automatic control of the temperature of the whole variable temperature test.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1 to fig. 3, the present invention provides a fresh air delivery temperature adaptive control device 100 for an air duct, which includes a first-stage blower unit adaptive control device 1 and a second-stage blower unit adaptive control device 2; the first-stage air feeder group self-adaptive control device 1 is arranged at one end of the outdoor air pipe 3, which is far away from the indoor air pipe 4, and the second-stage air feeder group self-adaptive control device 2 is arranged at the position where the outdoor air pipe 3 is communicated with the indoor air pipe 4; the self-adaptive control device 1 of the primary air supply unit is used for controlling the air supply temperature and the target temperature synchronously and controlling the humidity at the same time; the self-adaptive control device 2 of the secondary air blower set is used for automatically adjusting and compensating the target temperature; and the primary air blower unit self-adaptive control device 1 and the secondary air blower unit self-adaptive control device 2 realize linkage control through upper-level configuration.

Specifically, the first-stage air feeder unit self-adaptive control device 1 comprises a fresh air surface cooling proportional valve 6, a normal temperature surface cooling proportional valve 7, a low temperature surface cooling proportional valve 8 and an electric heating proportional valve 9 which are sequentially communicated through a fresh air pipeline 5; an electric regulating valve 10 is arranged at one end of the fresh air surface-cooling proportional valve 6, which is far away from the normal temperature surface-cooling proportional valve 7, and a processing fan 11 is arranged at one end of the electric heating proportional valve 9, which is far away from the low temperature surface-cooling proportional valve 8; the fresh air pipeline is connected with a regeneration air pipeline 12 through a connecting part, and a regeneration fan 13 and a regeneration electric heater 14 are arranged on the regeneration air pipeline 12; the tail end of the fresh air pipeline 5 is communicated with the outdoor air pipe 3.

The self-adaptive control device 2 of the secondary air blower unit comprises a normal-temperature surface-cooling proportional valve 7, a low-temperature surface-cooling proportional valve 8 and an electric heating proportional valve 9 which are sequentially communicated through a pipeline 15, one end of the pipeline 15 is communicated with the outdoor air pipe 3, and the other end of the pipeline 15 is communicated with the indoor air pipe 4. A fire-proof valve 16 is respectively arranged on the pipeline 15 and the fresh air pipeline 5, so that the occurrence of fire can be effectively avoided.

The invention realizes the variable-temperature self-adaptive control of the air supply temperature of the primary air supply unit along with the target temperature by the combined control of the normal-temperature surface cooling proportional valve 7, the low-temperature surface cooling proportional valve 8 and the electric heating proportional valve 9 by the self-adaptive control device 1 of the primary air supply unit. Specifically, the adaptive control device 1 of the primary air supply unit is responsible for controlling the synchronous control of the air supply temperature and the target temperature and controlling certain humidity, so that the surface air coolers of the primary air supply unit and the secondary air supply unit are prevented from frosting in the low-temperature test process. The self-adaptive control device 2 of the secondary air blower unit is responsible for automatic adjustment and compensation of target temperature, because in the long-distance conveying process, the heat loss to a certain degree exists when the suitable fresh air is conveyed through external environment heat exchange, and the self-adaptive control device 2 of the secondary air blower unit is positioned at the junction of the outdoor air pipe 3 and the indoor air pipe 4 to perform automatic compensation and control on the lost temperature. And the linkage control of the first-stage air blower unit self-adaptive control device 1 and the second-stage air blower unit self-adaptive control device 2 is realized through the upper configuration. The automatic start-stop control of the compressor of the secondary air supply unit is realized by setting the start-stop temperature of the compressor of the secondary air supply unit. The automatic defrosting control of the compressor of the secondary air supply unit is realized by setting the defrosting start-stop temperature of the compressor of the secondary air supply unit. And the advanced self-adaptive control of the secondary air supply temperature in the variable temperature test process is realized by setting the target temperature deviation value. And the self-adaptive control of the target temperature is realized through the automatic compensation control of the air supply temperature of the secondary air supply unit. And the system is respectively communicated with a first-stage air blower unit self-adaptive control device and a second-stage air blower unit self-adaptive control device through configuration software of an upper computer. The self-adaptive control device of the primary air supply unit is responsible for temperature-changing switching control, when the primary air supply unit performs a temperature-rising test, a temperature-rising or temperature-lowering test designation is sent out, through upper unit configuration software, the self-adaptive control device of the secondary air supply unit receives the temperature-rising or temperature-lowering test designation, and the self-adaptive control device of the secondary air supply unit synchronously performs the temperature-rising or temperature-lowering test along with the self-adaptive control device of the primary air supply unit. The first-level air blower unit self-adaptive control device 1 realizes variable temperature switching through a variable temperature switching button of upper machine configuration software.

As shown in fig. 4, the vertical axis is temperature, the horizontal axis is time, and the first-stage blower unit adaptive control device 1 is divided into four stages, namely, a high-temperature rising stage M30, a high-temperature rising stage M31, a high-temperature falling stage M32, and a high-temperature falling stage M33, when the high-temperature test is switched by the variable-temperature switching button of the upper computer configuration software.

As shown in fig. 5, in the figure, the vertical axis represents temperature, and the horizontal axis represents time, when the primary blower unit adaptive control device 1 switches the low-temperature test through the variable-temperature switching button of the upper computer configuration software, the low-temperature test is divided into four stages, namely, a low-temperature reduction stage M130, a low-temperature reduction stage M131, a low-temperature increase stage M132, and a low-temperature increase stage M133.

The self-adaptive control device 2 of the secondary air blower set is integrated into four stages, namely a temperature rise stage M80, a temperature rise and leveling stage M81, a temperature reduction stage M82 and a temperature reduction stage M83. Namely, the first-stage air blower set self-adaptive control device 1 is in a high-temperature heating stage M30 or a low-temperature heating stage M132, and the second-stage air blower set self-adaptive control devices 2 are in a heating stage M80; the self-adaptive control device 1 of the primary air blower set is in a high-temperature cooling stage M32 or a low-temperature cooling stage M130, and the self-adaptive control devices 2 of the secondary air blower set are in a cooling stage M81; the self-adaptive control device 1 of the primary air blower set is in a high-temperature raising and leveling temperature stage M31 or a low-temperature raising and leveling temperature stage M133, and the self-adaptive control devices 2 of the secondary air blower set are in a raising and leveling temperature stage M82; the first-stage air blower set self-adaptive control device 1 is in a high-temperature reduction and leveling stage M33 or a low-temperature reduction and leveling stage M131, and the second-stage air blower set self-adaptive control devices 2 are in a temperature reduction and leveling stage M83.

For example, when the signal received by the adaptive control device 2 of the secondary blower unit is in the temperature-raising stage M80, the upper configuration software sets a temperature-raising initial temperature set value a, a temperature-raising time set value B, a temperature-raising rate C, and a temperature-raising stage temperature set value D, and during the temperature-raising process, the air-supply temperature value Y output by the secondary blower unit is Y (0) + a + B + C, thereby realizing the automatic compensation of the secondary air-supply temperature. Once the temperature rise stage is finished and the temperature is raised to the flat temperature, the air supply temperature value Y output by the secondary air supply unit is equal to Y (0) + D.

For example, when the signal received by the adaptive control device of the secondary air blower unit is in the cooling stage M81, the upper configuration software sets a cooling start temperature set value E, a cooling time set value F, a cooling rate G, and a cooling stage temperature set value H, and during the cooling process, the air supply temperature value Y output by the secondary air blower unit is Y (0) + E-F x G, thereby realizing the automatic compensation of the secondary air supply temperature. Once the cooling stage is finished and the temperature is reduced, the air supply temperature value Y output by the secondary air supply unit is Y (0) + I.

Because the self-adaptive control device of the secondary air blower unit is positioned at the junction of the outdoor conveying air pipe and the indoor conveying air pipe, a long section of indoor air pipe is arranged at a distance from a target for conveying, certain heat loss also exists, and the automatic compensation of the air supply temperature of the secondary air blower unit is increased, so that the heat loss can be completely compensated.

By setting a target temperature real-time deviation alarm value, once the real-time temperature is greater than the upper limit value and the lower limit value of the target temperature set value, an acousto-optic alarm is triggered to remind an operator on duty to perform manual entry intervention.

In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.