A laboratory airflow field intelligent regulation system

Abstract

This invention discloses an intelligent airflow field adjustment system for laboratories, relating to the field of airflow field adjustment technology. The invention uses a monitoring terminal to monitor the internal and external temperatures, supply air temperature, and supply air velocity of a laboratory equipped with a variable air volume (VAV) air conditioning system in real time. A data analysis module analyzes the operating status of the VAV air conditioning system at startup, obtaining fusion parameters for the temperature rise caused by airflow mixing during a certain intermediate period due to active air supply in the laboratory, and parameters for the temperature to drop back to a preset temperature after the rise. The adjustment module, based on the scheduled use time of the laboratory and the pre-suitable temperature for use in the laboratory under the current state, adjusts the active air supply time and temperature, avoiding the turbulence in the laboratory airflow field caused by airflow and the reverse temperature changes resulting from the mutual flow of airflows at different temperatures, thus ensuring the stability of the airflow field during active air supply.

Description

Technical Field

[0001] This invention relates to the field of airflow field regulation technology, and more specifically to a laboratory airflow field intelligent regulation system. Background Technology

[0002] Laboratory ventilation is one of the largest and most far-reaching systems in the entire laboratory design and construction process. The quality of the ventilation system directly impacts the laboratory environment, the health of laboratory personnel, and the operation and maintenance of laboratory equipment.

[0003] However, laboratories typically rely on air conditioning systems, which generate significant ventilation volumes and require long operating times, resulting in substantial energy consumption during operation. Therefore, it is crucial to effectively control airflow to improve energy efficiency while ensuring laboratory safety, achieving the most ideal energy-saving effect.

[0004] Currently, laboratories are typically equipped with variable air volume (VAV) air conditioning systems, which regulate the airflow within the laboratory while actively supplying air and setting the supply air temperature to intelligently regulate the indoor temperature; and complete the regulation of the laboratory temperature and the stabilization of the airflow field within a preset time.

[0005] However, this method has several drawbacks when a temperature reduction is needed. First, the active air supply process causes a portion of the air to move rapidly. Then, according to the continuity equation, the active air supply will cause the entire indoor air flow field to circulate. Finally, according to the energy equation, airflows of different temperatures merge and transfer heat, which will actually increase the indoor temperature within a certain period of time, causing instability in the airflow field.

[0006] To address the above problems, the present invention proposes a solution; Summary of the Invention

[0007] The purpose of this invention is to provide an intelligent airflow field regulation system for laboratories. This system addresses the problems in existing technologies where, during the intelligent regulation of indoor temperature through active air supply and setting the supply air temperature, the active air supply process first causes rapid movement of some air; then, according to the continuity equation, active air supply will cause cyclical movement of the entire indoor airflow field; finally, according to the energy equation, airflows of different temperatures merge and transfer heat, resulting in an increase in indoor temperature over a certain period, causing instability in the airflow field.

[0008] The objective of this invention can be achieved through the following technical solutions:

[0009] A laboratory airflow field intelligent regulation system includes:

[0010] The monitoring terminal monitors the temperature inside and outside the laboratory, the supply air temperature, and the supply air velocity. The laboratory is equipped with a variable air volume air conditioning system.

[0011] The adjustment module regulates the variable air volume air conditioning system in the laboratory.

[0012] The data analysis module analyzes the operation of the variable air volume air conditioning system in the laboratory and generates the current fusion parameter E1 and the peace parameter E2 for the laboratory.

[0013] Furthermore, the monitoring terminal includes a temperature monitoring module, which is used to monitor the temperature inside and outside the laboratory in real time.

[0014] Furthermore, the monitoring terminal also includes a variable air volume monitoring module, which is used to monitor the supply air temperature and supply air speed of the variable air volume air conditioning system in the laboratory in real time. When the variable air volume air conditioning system in the laboratory starts to work, the variable air volume monitoring module monitors the supply air temperature and supply air speed of the variable air volume air conditioning system in the laboratory in real time and generates supply air monitoring data of the variable air volume air conditioning system in the laboratory based on it.

[0015] Furthermore, the data analysis module performs the following steps to generate the current fusion parameter E1 and the peace parameter E2 for the laboratory:

[0016] S21: First, select a laboratory equipped with a variable air volume air conditioning system as the laboratory to be scheduled, and obtain the air outlet area P1 of the laboratory to be scheduled.

[0017] S22: Obtain the indoor temperature of the laboratory to be scheduled in a scheduling cycle, labeled as A1, A2, ..., Aa, where a≥1;

[0018] A complete scheduling cycle is defined as the period from when the variable air volume air conditioning system of the laboratory to be scheduled starts working until the temperature of the laboratory to be scheduled is adjusted to the preset temperature; the preset temperature is the suitable temperature for use in the laboratory; and Aa is the suitable temperature of the laboratory to be scheduled during this scheduling cycle.

[0019] Obtain the active air supply velocity B1 and active air supply temperature C1 of the scheduled laboratory for a scheduling week;

[0020] S23: Compare the sizes of A1 and A2, A2 and A3, ..., Aa-1 and Aa in sequence. If Ai≤Ai+1, obtain the time it takes for the indoor temperature of the laboratory to be scheduled to be adjusted from A1 to Ai, and mark it as D1.

[0021] S24: Utilize the formula Calculate and obtain the fusion factor α1 for the heat transfer of mixed laboratory gases in the laboratory variable air volume air conditioning system to be scheduled for a scheduling cycle;

[0022] S25: Obtain the time from Ai+1 to Aa of the indoor temperature of the laboratory to be scheduled, and mark it as D2;

[0023] S26: Use the formula Calculate and obtain the smoothing factor β1 for the uniform mixing of the heat of the mixed laboratory gas in the variable air volume air conditioning system of the laboratory to be scheduled in one scheduling period;

[0024] S27: Calculate and obtain the fusion factors ɑ1, ɑ2,..., ɑt for the heat transfer of the mixed laboratory gas in the variable air volume air conditioning system of the laboratory to be scheduled in t scheduling periods and the smoothing factors β1, β2,..., βt for the uniform mixing according to S21 to S26; Use the summation and averaging formula to calculate and obtain the average value of the fusion factors for the heat transfer of the mixed laboratory gas in the variable air volume air conditioning system of the laboratory to be scheduled in t scheduling periods, and re-label it as the fusion parameter E1, and the average value of the smoothing factors for the uniform mixing, and re-label it as the smoothing parameter E2;

[0025] The t scheduling periods are t scheduling periods traced back from the current scheduling period to the past. <00000s5>

[0026] Furthermore, the adjustment module obtains the time when the current reserved personnel use the laboratory and adjusts the air flow field in the laboratory according to a certain adjustment rule. The specific adjustment rules are as follows:

[0027] S11: Obtain the time interval I between the current moment and the moment when the laboratory is reserved for use and the pre-adjusted temperature F2 of the laboratory. The pre-adjusted temperature of the laboratory is the suitable temperature of the laboratory when reserved for use;

[0028] Obtain the indoor temperature G1 at the current moment;

[0029] S12: Use the formula Calculate and obtain the active air supply start time I1 of the variable air volume adjustment system in the current state. H1 is the preset minimum energy consumption active air supply temperature, H2 is the highest temperature at which the active air supply of the variable air volume air conditioning system causes a temperature increase but does not affect the chaos of the air flow field at the current indoor temperature; V1 is the highest speed that does not cause noise;

[0030] S13: If I1≥I, use the formula Calculate and obtain the minimum energy consumption active air supply temperature K1 of the current laboratory;

[0031] The scheduling module adjusts and activates the air volume adjustment system to actively supply air to the laboratory at the air supply temperature K1 and the air supply speed V1;

[0032] If I1<I, use the formula J1 = I - I1 to calculate and obtain the low energy consumption start time J1 of the variable air volume air conditioning system in the current laboratory at the current moment;

[0033] The scheduling module activates the variable air volume regulation system within time J1, actively supplying air to the laboratory at air supply temperature H1 and air supply speed V2.

[0034] The beneficial effects of this invention are:

[0035] This invention uses a monitoring terminal to monitor the internal and external temperatures, supply air temperature, and supply air velocity of a laboratory equipped with a variable air volume (VAV) air conditioning system in real time. A data analysis module analyzes the operating status of the VAV air conditioning system at startup, obtaining fusion parameters for the temperature rise caused by airflow mixing during a certain intermediate period due to active air supply in the laboratory, and parameters for the temperature to drop back to the preset temperature after the rise. An adjustment module adjusts the active air supply time and temperature based on the scheduled laboratory usage time and the pre-suitable temperature for the laboratory under the current conditions. This avoids turbulence in the laboratory's airflow field caused by the reverse temperature changes resulting from airflow and the interaction between airflows of different temperatures, ensuring the stability of the airflow field during active air supply. Furthermore, by adjusting the optimal active air supply temperature based on the current laboratory conditions, it avoids noise caused by excessively high active air supply velocities. Attached Figure Description

[0036] The invention will now be further described with reference to the accompanying drawings.

[0037] Figure 1 This is a system block diagram of the present invention;

[0038] Figure 2 This is a system flowchart of the present invention. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] like Figure 1 As shown, a laboratory airflow field intelligent regulation system includes a monitoring terminal, a regulation module, and a data analysis module;

[0041] The monitoring terminal includes a temperature monitoring module and a variable ventilation monitoring module. The temperature monitoring module is used to monitor the temperature inside and outside the laboratory in real time. The temperature monitoring module includes an outdoor temperature monitoring unit and an indoor temperature monitoring unit.

[0042] In this embodiment, a variable air volume air conditioning system is installed in the laboratory;

[0043] The outdoor temperature monitoring unit monitors the outdoor temperature in real time and generates outdoor temperature monitoring data based on it, and the indoor temperature monitoring unit monitors the indoor temperature in real time and generates indoor temperature monitoring data based on it;

[0044] The variable air volume monitoring module is used to monitor the supply air temperature and supply air speed in real time when the variable air volume air conditioning system in the laboratory is working. When the variable air volume air conditioning system in the laboratory starts to work, the variable air volume monitoring module monitors the supply air temperature and supply air speed in real time when the variable air volume air conditioning system in the laboratory is working and generates supply air monitoring data when the variable air volume air conditioning system in the laboratory is working based on it;

[0045] The adjustment module is used to adjust the variable air volume air conditioning system in the laboratory. The adjustment module obtains the time when the current reserved personnel use the laboratory and adjusts the air flow field in the laboratory according to a certain adjustment rule. The specific adjustment rule is as follows:

[0046] S11: Obtain the time interval I between the current time and the time when the laboratory is reserved for use and the pre-adjustment temperature F2 of the laboratory. The pre-adjustment temperature of the laboratory is the suitable temperature of the laboratory when it is reserved for use;

[0047] Obtain the indoor temperature G1 at the current time;

[0048] S12: Use the formula Calculate and obtain the active supply air opening time I1 of the variable air volume adjustment system in the current state. The H1 is the preset minimum energy consumption active supply air temperature, and the H2 is the highest temperature at which the supply air of the variable air volume air conditioning system causes temperature rise but does not affect the air flow field chaos at the current indoor temperature; The V1 is the highest speed that does not cause noise;

[0049] S13: If I1≥I, use the formula Calculate and obtain the minimum power consumption active supply air temperature K1 of the current laboratory;

[0050] The scheduling module adjusts to open the air volume adjustment system and actively supplies air to the laboratory at the supply air temperature of K1 and the supply air speed of V1;

[0051] If I1<I, use the formula J1 = I - I1 to calculate and obtain the low power consumption opening time J1 of the variable air volume air conditioning system in the laboratory at the current time;

[0052] The scheduling module opens the variable air volume adjustment system within the time of J1 and actively supplies air to the laboratory at the supply air temperature of H1 and the supply air speed of V2;

[0053] The data analysis module analyzes the laboratory's monitoring data. The specific analysis steps are as follows:

[0054] S21: First, select a laboratory equipped with a variable air volume air conditioning system as the laboratory to be scheduled, and obtain the air outlet area P1 of the laboratory to be scheduled.

[0055] S22: Obtain the indoor temperature of the laboratory to be scheduled in a scheduling cycle, labeled as A1, A2, ..., Aa, where a≥1;

[0056] A complete scheduling cycle is defined as the period from when the variable air volume air conditioning system of the laboratory to be scheduled starts working until the temperature of the laboratory to be scheduled is adjusted to the preset temperature; the preset temperature is the suitable temperature for use in the laboratory; and Aa is the suitable temperature of the laboratory to be scheduled during this scheduling cycle.

[0057] Obtain the active air supply velocity B1 and active air supply temperature C1 of the scheduled laboratory for a scheduling week;

[0058] S23: Compare the sizes of A1 and A2, A2 and A3, ..., Aa-1 and Aa in sequence. If Ai≤Ai+1, obtain the time it takes for the indoor temperature of the laboratory to be scheduled to be adjusted from A1 to Ai, and mark it as D1.

[0059] S24: Utilize the formula Calculate and obtain the fusion factor α1 for the heat transfer of mixed laboratory gases in the laboratory variable air volume air conditioning system to be scheduled for a scheduling cycle;

[0060] S25: Obtain the time it takes for the indoor temperature of the laboratory to be scheduled to change from Ai+1 to Aa, and mark it as D2;

[0061] S26: Utilize the formula Calculate and obtain the balance factor β1 for uniform heat mixing of mixed laboratory gases in the expected scheduling week of the laboratory variable air volume air conditioning system.

[0062] S27: Calculate the fusion factors α1, α2, ..., αt and the uniform mixing factors β1, β2, ..., βt of the mixed laboratory gas heat transfer in the variable air volume air conditioning system of the laboratory to be scheduled for t scheduling weeks according to S21 to S26; calculate the mean value of the fusion factors of the mixed laboratory gas heat transfer in the variable air volume air conditioning system of the laboratory to be scheduled for t scheduling weeks using the summation and averaging formula, and recalibrate them as the fusion parameter E1; and recalibrate the mean value of the uniform mixing factors as the uniform mixing parameter E2.

[0063] The t scheduling cycles are calculated by going back t scheduling cycles from the current scheduling cycle.

[0064] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0065] The above description is merely an example and illustration of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0066] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A laboratory air flow stream field intelligent adjustment system, characterized in that, The application relates to a laboratory air conditioning system, which comprises the following parts: a monitoring terminal for monitoring the temperature inside and outside a laboratory, the air supply temperature and the air supply speed, wherein a variable air volume air conditioning system is arranged in the laboratory; an adjusting module for adjusting the variable air volume air conditioning system in the laboratory; a data analysis module for analyzing the working process of the variable air volume air conditioning system in the laboratory to generate fusion parameter E1 and peace parameter E2 of the laboratory at present; the specific steps of the data analysis module for analyzing and generating fusion parameter E1 and peace parameter E2 of the laboratory at present are as follows: S21: firstly, a laboratory with a variable air volume air conditioning system is selected as a laboratory to be dispatched, and the air supply area P1 of the laboratory to be dispatched is obtained; S22: the indoor temperature of the laboratory to be dispatched in a dispatch period is obtained and marked as A1, A2,..., Aa, a>=1; a complete dispatch period is from when the variable air volume air conditioning system in the laboratory to be dispatched starts to work to when the temperature of the laboratory to be dispatched is adjusted to a pre-adjusted temperature; the pre-adjusted temperature is the suitable temperature of the laboratory to be used; Aa is the suitable temperature of the laboratory to be dispatched in the dispatch period; the active air supply speed B1 and the active air supply temperature C1 of the laboratory to be dispatched in a dispatch period are obtained; S23: A1 and A2, A2 and A3,..., Aa-1 and Aa are compared in sequence, if Ai<=Ai+1, the time for adjusting the indoor temperature of the laboratory to be dispatched from A1 to Ai is obtained and marked as D1; S24: using the formula The fusion factor a1 of the mixed laboratory gas heat transfer of the laboratory variable air volume air conditioning system to be scheduled in a scheduling period is calculated. S25: the time for adjusting the indoor temperature of the laboratory to be dispatched from Ai+1 to Aa is obtained and marked as D2; S26: using the formula A scheduling period to be scheduled laboratory variable air volume air conditioning system mixed laboratory gas heat mixed evenly and peaceful factor β1 is calculated and acquired; S27: fusion factors a1, a2,..., at of mixed laboratory gas heat transfer and peace factors beta1, beta2,..., beta t of mixed uniformity of the variable air volume air conditioning system in the laboratory to be dispatched in t dispatch periods are obtained according to S21 to S26; the average value of the fusion factors of mixed laboratory gas heat transfer of the variable air volume air conditioning system in the laboratory to be dispatched in t dispatch periods is calculated by using the adding and averaging formula, and the average value is re-marked as fusion parameter E1; the average value of the peace factors of mixed uniformity is re-marked as peace parameter E2; the t dispatch periods are t dispatch periods from the present dispatch period to the past; the adjusting module obtains the time when the laboratory is used by a person who makes a reservation and adjusts the air flow field in the laboratory according to certain adjusting rules, and the specific adjusting rules are as follows: S11: the time interval I from the time when the laboratory is used by a person who makes a reservation at present and the laboratory pre-adjusted temperature F2 are obtained; the laboratory pre-adjusted temperature is the suitable temperature of the laboratory when the laboratory is used by a person who makes a reservation; the indoor temperature G1 of the laboratory at present is obtained; S12: using the formula The current state of the variable air volume conditioning system is calculated to obtain the active air supply opening time I1, the H1 is the preset minimum energy consumption active air supply temperature, the H2 is the highest temperature caused by the temperature rise of the variable air volume conditioning system active air supply at the current indoor temperature but does not affect the air flow and air field confusion; the V1 is the preset highest speed that will not cause noise. S13: If I1≥I, the formula The current minimum power consumption of the laboratory is calculated by the formula the dispatch module adjusts the air volume adjusting system to actively supply air into the laboratory at K1 air supply temperature and V1 air supply speed; if I1 the dispatch module opens the variable air volume adjusting system to actively supply air into the laboratory at H1 air supply temperature and V2 air supply speed within J1 time.

2. The laboratory airflow flow field intelligent adjusting system according to claim 1, characterized in that, The monitoring terminal comprises a temperature monitoring module for monitoring the temperature inside and outside the laboratory in real time.

3. The laboratory airflow flow field intelligent conditioning system of claim 2, wherein, The monitoring terminal further comprises a variable air volume monitoring module for monitoring the supply air temperature and supply air speed of the variable air volume air conditioning system in the laboratory in real time, and when the variable air volume air conditioning system in the laboratory starts to work, the variable air volume monitoring module monitors the supply air temperature and supply air speed of the variable air volume air conditioning system in the laboratory in real time and generates supply air monitoring data of the variable air volume air conditioning system in the laboratory in real time according to the supply air temperature and supply air speed.

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