Energy-saving standard curing room and using method thereof

Abstract

According to the energy-saving standard curing room, the humidity sensor and the temperature sensor can measure the humidity and the temperature in the standard curing room body in real time and feed the humidity and the temperature back to the control system. The control system controls the control valve according to the measured humidity, so that the atomization system is controlled to start and stop, and the humidity in the standard curing chamber body is adjusted. In addition, due to the fact that the heating system and the cooling system are arranged in the water storage tank, the temperature of water used for humidification in the water storage tank can be adjusted. By adjusting the temperature of the water used for humidification, the humidity in the standard curing chamber body can be adjusted, and the temperature in the standard curing chamber body can be adjusted at the same time.

Description

Technical Field

[0001] The present invention belongs to the technical field of building construction, and particularly relates to an energy-saving standard curing chamber. Background Art

[0002] A standard curing chamber is a constant temperature and humidity standard curing facility specifically used for concrete test blocks and cement test blocks. Its core function is to provide a specific temperature and humidity environment for concrete and cement specimens to ensure that the specimens can achieve the best physical and mechanical properties during the curing process.

[0003] Existing standard curing chambers generally use air conditioners as the temperature control system. While the air conditioner cools down, it will cause the moisture in the air in the standard curing chamber to condense, resulting in a significant reduction in the humidity in the standard curing chamber, making the humidity in the standard curing chamber unstable and not conducive to the curing of test blocks. In addition, since water lost during the air conditioner refrigeration process needs to be continuously replenished in the standard curing chamber, it also causes waste of water resources. Summary of the Invention

[0004] In order to reduce the loss of moisture in the air during the use of the standard curing chamber, the present invention provides an energy-saving standard curing chamber and its usage method.

[0005] The technical solution of an energy-saving standard curing chamber of the present invention is as follows:

[0006] An energy-saving standard curing chamber includes a standard curing chamber body, a water storage tank, an atomization system, a humidity sensor, a temperature sensor, and a control system arranged in the standard curing chamber body; the water storage tank is connected to the atomization system through a pipeline; a control valve is arranged on the pipeline between the water storage tank and the atomization system; a heating system and a cooling system are arranged in the water storage tank; the control system is respectively in signal connection with the humidity sensor, the temperature sensor, the control valve, the heating system, and the cooling system.

[0007] In an energy-saving standard curing chamber of the present invention, the humidity sensor and the temperature sensor can measure the humidity and temperature in the standard curing chamber body in real time and feedback them to the control system. The control system controls the control valve according to the measured humidity, thereby controlling the start and stop of the atomization system to realize the adjustment of the humidity in the standard curing chamber body. In addition, since a heating system and a cooling system are arranged in the water storage tank, the temperature of the water used for humidification in the water storage tank can be adjusted. By adjusting the temperature of the water used for humidification, the temperature in the standard curing chamber body can be adjusted while adjusting the humidity in the standard curing chamber body.

[0008] An energy-saving standard curing room of the present invention controls the temperature inside the curing room body by adjusting the temperature of the water for humidification, without the need to additionally use direct refrigeration equipment such as air conditioners, thereby reducing the loss of moisture in the air inside the curing room body. While reducing energy consumption, it also reduces water consumption, thus playing a role in energy conservation and emission reduction. In addition, after the loss of moisture in the air inside the curing room body is reduced, it is also more conducive to maintaining the stability of the internal environment of the curing room body, thereby creating a favorable environment for the curing work of concrete.

[0009] Further, in the described energy-saving standard curing room, specifically, the heating system is an electric heating rod; the cooling system is a cooling coil pipe connected to a chiller through a pipeline.

[0010] Further, in the described energy-saving standard curing room, in order to be more conducive to the humidity adjustment inside the curing room body, the atomization system includes a plurality of atomizing nozzles; each atomizing nozzle is arranged at the top of the curing room body (1).

[0011] Further, in the described energy-saving standard curing room, a curing rack is arranged inside the curing room body, and concrete test blocks are placed on the curing rack; atomizing nozzles are arranged above each concrete test block. The atomizing nozzles are arranged close to the concrete test blocks, enabling the water mist to directly act around the concrete test blocks, which is more conducive to the curing of the concrete test blocks.

[0012] Further, in the described energy-saving standard curing room, the water storage tank is arranged at the top of the curing room body, thereby playing a role in heat insulation and heat preservation.

[0013] Further, in the described energy-saving standard curing room, it further includes a water replenishing system; the water replenishing system includes a water pump and a water replenishing valve; the water pump pumps the water in the rainwater tank into the water storage tank through a pipeline; when the water replenishing valve is opened, public water flows into the water storage tank through a pipeline; the control system is signal-connected to the water pump and the water replenishing valve. The curing room can be arranged at the construction site. During the rainy season, the water in the rainwater tank can be pumped into the water storage tank, which can not only be used for the humidity adjustment of the curing room but also relieve the drainage pressure at the construction site. When there is no rain, public water can be used for water replenishment.

[0014] Further, in the described energy-saving standard curing room, first liquid level sensors are respectively arranged at two different height positions on the side of the water storage tank; a second liquid level sensor is arranged inside the rainwater tank; the control system is signal-connected to the first liquid level sensor and the second liquid level sensor. To ensure that there is sufficient water in the water storage tank, when the water level in the water storage tank is below the installation height of the lower first liquid level sensor, water replenishment starts. At this time, if the second liquid level sensor detects that there is water in the rainwater tank, the water pump is started for water replenishment, otherwise, the water replenishing valve is opened for water replenishment. When the water level in the water storage tank is above the installation height of the upper first liquid level sensor, water replenishment stops.

[0015] Furthermore, in the energy-saving curing chamber described above, a drain valve is also included; when the drain valve is opened, the water in the water storage tank is discharged into the rainwater trough. The water storage tank can also play a role in regulating drainage, alleviating the drainage pressure at the construction site.

[0016] The present invention provides a method for using the above energy-saving curing chamber, and the technical solution is as follows:

[0017] A method for using an energy-saving curing chamber includes the following steps:

[0018] S1, filling water into the water storage tank; controlling the humidity and temperature inside the curing chamber body; placing the concrete test blocks into the curing chamber body;

[0019] S2, in the control system:

[0020] Set the humidity control function f RH , f RH (RH s , RH p ) = Out RH , where RH s is the humidity set value, RH p is the humidity measured value, and Out RH is the humidity control output value; the range of Out RH is MIN ≤ Out RH ≤ 100%, where MIN is the minimum output value of humidity control;

[0021] Set the temperature control function f T , f T (T s , T p ) = Out T1 , where T s is the temperature set value, T p is the temperature measured value, Out T1 is the temperature control transition output value, and the range of Out T1 is -100% ≤ Out T1 ≤ 100%;

[0022] Set Out T2 as the temperature control output value, Out T2 = Out T1 / Out RH ; when Out T1 / Out RH < -1, Out T2 = -100%, and when Out T1 / Out RH > 1, Out T2= 100%;

[0023] Set the execution cycle Time of the control valve V ;

[0024] Set the execution cycle Time of the heating system H ;

[0025] Set the execution cycle Time of the cooling system C ;

[0026] S3, the control system controls the humidity and temperature inside the standard curing chamber body:

[0027] The opening time Time of the control valve within one execution cycle Von = Time V * Out RH ;

[0028] When Out T1 > 0, the heating system starts, the cooling system shuts down, and the opening time Time of the heating system within one execution cycle Hon = Time H * Out T2 ;

[0029] When Out T1 < 0, the cooling system starts, the heating system shuts down, and the opening time Time of the cooling system within one execution cycle Con = - Time C * Out T2 .

[0030] S4, repeat S3 until the humidity and temperature no longer need to be controlled.

[0031] During the control process of humidity and temperature, f RH , f T respectively obtain Out RH , Out T1 .

[0032] Out RH , Out T2 Determine the length of the opening time of the control valve, heating system or cooling system within one execution cycle.

[0033] The minimum output value MIN of humidity control > 0, which is used to ensure that there is always atomized water for temperature regulation inside the standard curing chamber body, preventing the situation where the temperature cannot be controlled due to the non-opening of the control valve after the humidity reaches the standard.

[0034] Out T2 and Out T1is directly proportional, i.e., the larger the value of Out T1 , the longer the opening time of the heating system or the cooling system. Out T2 is inversely proportional to Out RH and plays a role in compensating for Out T2 , that is, when the water consumption increases, the opening time of the heating system or the cooling system is correspondingly reduced, or when the water consumption decreases, the opening time of the heating system or the cooling system is correspondingly increased, so as to make the temperature control more stable and reduce the influence of humidity control on temperature control during the humidity control process.

[0035] For example, when Time V = 10s; Time H = 10s,

[0036] When: Out RH = 50%, Out T1 = 25%,

[0037] Then Time Von = 10 * 50% = 5s, Time Hon = 25% / 50% * 10 = 5S;

[0038] At this time, the heat increment E1 brought by the sprayed water mist = heating power * 5S / total water volume in the water storage tank * atomized water flow rate * 5S = heating power / total water volume in the water storage tank * water mist flow rate * 25S (J);

[0039] When the humidity environment changes, causing Out RH = 25% (Out T1 = 25% remains unchanged),

[0040] Then Time Von = 10 * 25% = 2.5s, Time Hon = 25% / 25% * 10 = 10S;

[0041] At this time, the heat increment E2 brought by the sprayed water mist = heating power * 10S / total water volume in the water storage tank * atomized water flow rate * 2.5S = heating power / total water volume in the water storage tank * water mist flow rate * 25S (J); which is the same as E1.

[0042] It can be seen that the usage method of the energy-saving curing room of the present invention can achieve the interlocking control of humidity and temperature, and minimize the influence of humidity control on temperature control.

[0043] Furthermore, in the usage method of the energy-saving curing room, specifically, the humidity control function f RH , and the temperature control function f T are PID control functions. Brief Description of the Drawings

[0044] Figure 1 It is a schematic diagram of an energy-saving standard curing room of the present invention. Detailed Description of the Invention

[0045] The present invention will be further described in detail below with reference to the drawings and specific embodiments. According to the following description and the claims, the advantages and features of the present invention will be more clearly understood. It should be noted that the drawings are all in a very simplified form and use non-precise scales, only for the purpose of facilitating and clearly assisting in explaining the purpose of the embodiments of the present invention.

[0046] Embodiment 1:

[0047] This embodiment provides an energy-saving standard curing room, and the technical solution is as follows:

[0048] Referring to Figure 1 , an energy-saving standard curing room includes a standard curing room body 1, a water storage tank 2, an atomization system 3 arranged in the standard curing room body 1, a humidity sensor 7, a temperature sensor 8, and a control system; the water storage tank 2 is connected to the atomization system 3 through a pipeline; a control valve 4 is arranged on the pipeline between the water storage tank 2 and the atomization system 3; a heating system 5 and a cooling system 6 are arranged in the water storage tank 2; the control system is respectively in signal connection with the humidity sensor 7, the temperature sensor 8, the control valve 4, the heating system 5, and the cooling system 6.

[0049] In an energy-saving standard curing room of this embodiment, the humidity sensor 7 and the temperature sensor 8 can measure the humidity and temperature in the standard curing room body 1 in real time and feedback them to the control system. The control system controls the control valve 4 according to the measured humidity, thereby controlling the start and stop of the atomization system 3 and realizing the adjustment of the humidity in the standard curing room body 1. In addition, since a heating system 5 and a cooling system 6 are arranged in the water storage tank 2, the temperature of the water for humidification in the water storage tank 2 can be adjusted. By adjusting the temperature of the water for humidification, the temperature in the standard curing room body 1 can be adjusted while adjusting the humidity in the standard curing room body 1.

[0050] In an energy-saving standard curing room of this embodiment, the temperature in the standard curing room body 1 is controlled by adjusting the temperature of the water for humidification, without the need to use additional direct refrigeration equipment such as air conditioners, thereby reducing the loss of moisture in the air in the standard curing room body 1. While reducing energy consumption, water consumption is also reduced, thus playing a role in energy conservation and emission reduction. In addition, after the loss of moisture in the air in the standard curing room body 1 is reduced, it is also more conducive to maintaining the stability of the environment in the standard curing room body 1, thereby creating a favorable environment for the concrete curing work.

[0051] As a preferred embodiment, in the energy-saving curing chamber, specifically, the heating system 5 is an electric heating rod; the cooling system 6 is a cooling coil pipe connected to the pipeline of the chiller.

[0052] As a preferred embodiment, in the energy-saving curing chamber, in order to more favorably adjust the humidity in the curing chamber body 1, the atomization system 3 includes a plurality of atomizing nozzles 3a; each atomizing nozzle 3a is arranged at the top of the curing chamber body 1.

[0053] As a preferred embodiment, in the energy-saving curing chamber, a curing rack 9 is arranged in the curing chamber body 1; the concrete test blocks 10 are placed on the curing rack 9; atomizing nozzles 3a are arranged above each concrete test block 10. The atomizing nozzles 3a are arranged close to the concrete test blocks 10, so that the water mist can directly act around the concrete test blocks 10, which is more favorable for the curing of the concrete test blocks 10.

[0054] As a preferred embodiment, in the energy-saving curing chamber, the water storage tank 2 is arranged at the top of the curing chamber body 1, so as to play a role in heat insulation and heat preservation.

[0055] As a preferred embodiment, in the energy-saving curing chamber, it further includes a water replenishing system; the water replenishing system includes a water pump 12 and a water replenishing valve 13; the water pump pumps the water in the rainwater tank 14 into the water storage tank 2 through a pipeline; when the water replenishing valve 13 is opened, the public water flows into the water storage tank 2 through a pipeline; the control system is in signal connection with the water pump 12 and the water replenishing valve 13. The curing chamber can be arranged at the construction site. In the rainy season, the water in the rainwater tank 14 can be pumped into the water storage tank 2, which can not only be used for humidity adjustment in the curing chamber, but also relieve the drainage pressure at the construction site. When there is no rain, the public water can be used for water replenishment.

[0056] As a preferred embodiment, in the energy-saving curing chamber, first liquid level sensors 11 are respectively arranged at two different height positions on the side of the water storage tank 2; a second liquid level sensor 15 is arranged in the rainwater tank 14; the control system is in signal connection with the first liquid level sensors 11 and the second liquid level sensor 15. To ensure that there is sufficient water in the water storage tank 2, when the water level in the water storage tank 2 is below the installation height of the lower first liquid level sensor 11, water replenishment starts. At this time, if the second liquid level sensor 15 detects that there is water in the rainwater tank 14, the water pump 12 is started for water replenishment, otherwise, the water replenishing valve 13 is opened for water replenishment. When the water level in the water storage tank 2 is above the installation height of the upper first liquid level sensor 11, water replenishment stops.

[0057] As a preferred embodiment, in the energy-saving standard curing room, a drain valve 16 is further included; when the drain valve 16 is opened, the water in the water storage tank 2 is discharged into the rainwater trough 14. The water storage tank 2 can also play a role in regulating drainage and relieve the drainage pressure at the construction site.

[0058] Embodiment 1:

[0059] This embodiment provides a method for using the energy-saving standard curing room described in Embodiment 1, and the technical solution is as follows:

[0060] A method for using an energy-saving standard curing room includes the following steps:

[0061] S1, filling water into the water storage tank 2; controlling the humidity and temperature in the curing room body 1; putting the concrete test block 10 into the curing room body 1;

[0062] S2, in the control system:

[0063] Set the humidity control function f RH , f RH (RH s , RH p ) = Out RH , where RH s is the humidity set value, RH p is the humidity measured value (measured by the humidity sensor 7), Out RH is the humidity control output value; the range of Out RH is MIN ≤ Out RH ≤ 100%, where MIN is the minimum output value of humidity control;

[0064] Set the temperature control function f T , f T (T s , T p ) = Out T1 , where T s is the temperature set value, T p is the temperature measured value (measured by the temperature sensor 8), Out T1 is the temperature control transition output value, Out T1 has a range of -100% ≤ Out T1 ≤ 100%;

[0065] Set Out T2 as the temperature control output value, Out T2 = Out T1 / Out RH ; when Out T1 / Out RH < -1, Out T2 = -100%, when OutT1 / Out RH When it is greater than 1, Out T2 = 100%;

[0066] Set the execution period Time of the control valve 4 V ;

[0067] Set the execution period Time of the heating system 5 H ;

[0068] Set the execution period Time of the cooling system 6 C ;

[0069] S3. The control system controls the humidity and temperature inside the standard curing chamber body 1:

[0070] The opening time Time of the control valve 4 within one execution period Von = Time V *Out RH ;

[0071] When Out T1 > 0, the heating system 5 starts, the cooling system 6 is closed, and the opening time Time of the heating system 5 within one execution period Hon = Time H *Out T2 ;

[0072] When Out T1 < 0, the cooling system 6 starts, the heating system 5 is closed, and the opening time Time of the cooling system 6 within one execution period Con = -Time C *Out T2 .

[0073] S4. Repeat S3 until the humidity and temperature no longer need to be controlled.

[0074] During the control of humidity and temperature, f RH 、f T respectively obtain Out RH 、Out T1 through a certain algorithm based on the difference between the set value and the measured value.

[0075] Out RH 、Out T2 determine the length of the opening time of the control valve 4, the heating system 5 or the cooling system 6 within one execution period.

[0076] The minimum output value MIN of humidity control is greater than 0, which is used to ensure that there is always atomized water for temperature regulation in the main body 1 of the standard curing room, preventing the situation where the temperature cannot be controlled due to the non-opening of the control valve 4 after the humidity reaches the standard.

[0077] Out T2 Is proportional to Out T1 , that is, the greater the value of Out T1 , the longer the opening time of the heating system 5 or the cooling system 6. Out T2 Is inversely proportional to Out RH and plays a role in compensating for Out T2 , that is, when the water consumption increases, the opening time of the heating system 5 or the cooling system 6 is correspondingly reduced, or when the water consumption decreases, the opening time of the heating system 5 or the cooling system 6 is correspondingly increased, so as to make the temperature control more stable and reduce the influence on temperature control during the humidity control process.

[0078] For example, when Time V = 10s; Time H = 10s,

[0079] When: Out RH = 50%, Out T1 = 25%,

[0080] Then Time Von = 10 * 50% = 5s, Time Hon = 25% / 50% * 10 = 5S;

[0081] At this time, the heat increment E1 brought by the sprayed water mist = heating power * 5S / total water volume in the water storage tank 2 * atomized water flow * 5S = heating power / total water volume in the water storage tank 2 * water mist flow * 25S (J);

[0082] And when the humidity environment changes, causing Out RH = 25% (Out T1 = 25% remains unchanged),

[0083] Then Time Von = 10 * 25% = 2.5s, Time Hon = 25% / 25% * 10 = 10S;

[0084] At this time, the heat increment E2 brought by the sprayed water mist = heating power * 10S / total water volume in the water storage tank 2 * atomized water flow * 2.5S = heating power / total water volume in the water storage tank 2 * water mist flow * 25S (J); which is the same as E1.

[0085] It can be seen that the usage method of the energy-saving standard curing room of the present invention can achieve the interlocking control of humidity and temperature, and minimize the influence of humidity control on temperature control.

[0086] As a preferred embodiment, in the usage method of the energy-saving standard curing room, specifically, the humidity control function f RH , the temperature control function f T is a PID control function.

[0087] The above description is only a description of the preferred embodiments of the present invention, and does not limit the scope of the present invention in any way. Any changes and modifications made by those of ordinary skill in the art according to the above disclosure are within the protection scope of the claims.

Claims

1. An energy-saving standard curing room, comprising a standard curing room body (1), characterized in that, It further includes a water storage tank (2), an atomization system (3), a humidity sensor (7), a temperature sensor (8) and a control system disposed in the standard curing chamber body (1); The water storage tank (2) is connected to the atomization system (3) through a pipeline; A control valve (4) is provided on the pipeline between the water storage tank (2) and the atomization system (3); A heating system (5) and a cooling system (6) are provided in the water storage tank (2); The control system is respectively in signal connection with the humidity sensor (7), the temperature sensor (8), the control valve (4), the heating system (5) and the cooling system (6).

2. The energy-saving standard curing room according to claim 1, characterized in that, The heating system (5) is an electric heating rod; the cooling system (6) is a cooling coil pipe connected to the pipeline of a chiller.

3. The energy-saving standard curing room according to claim 1, wherein, The atomization system (3) includes a plurality of atomizing nozzles (3a); each atomizing nozzle (3a) is disposed at the top of the standard curing chamber body (1).

4. The energy-saving standard curing room according to claim 3, wherein, A curing rack (9) is disposed in the standard curing chamber body (1), and the concrete test blocks (10) are placed on the curing rack (9); atomizing nozzles (3a) are disposed above each concrete test block (10).

5. An energy-saving standard curing room according to claim 1, characterized in that, The water storage tank (2) is disposed at the top of the standard curing chamber body (1).

6. The energy-saving standard curing room according to claim 1, wherein It further includes a water replenishing system; the water replenishing system includes a water pump (12) and a water replenishing valve (13); the water pump pumps the water in a rainwater tank (14) into the water storage tank (2) through a pipeline; when the water replenishing valve (13) is opened, public water flows into the water storage tank (2) through a pipeline; the control system is in signal connection with the water pump (12) and the water replenishing valve (13).

7. The energy-saving standard curing room according to claim 6, wherein, First liquid level sensors (11) are respectively disposed at two different height positions on the side of the water storage tank (2); a second liquid level sensor (15) is disposed in the rainwater tank (14); the control system is in signal connection with the first liquid level sensor (11) and the second liquid level sensor (15).

8. The energy-saving standard curing room according to claim 1, wherein It further includes a drain valve (16); when the drain valve (16) is opened, the water in the water storage tank (2) is drained into the rainwater tank (14).

9. A method for using an energy-saving standard curing room according to any one of claims 1-8, characterized in that, It includes the following steps: S1, filling water into the water storage tank (2); controlling the humidity and temperature in the standard curing chamber body (1); putting the concrete test blocks (10) into the standard curing chamber body (1); S2, in the control system: Set the humidity control function f RH , f RH (RH s , RH p ) = Out RH , where RH s is the humidity set value, RH p is the humidity measured value, and Out RH is the humidity control output value; the range of Out RH is MIN ≤ Out RH ≤ 100%, where MIN is the minimum output value of humidity control; Set the temperature control function f T , f T (T s , T p ) = Out T1 , where T s is the temperature set value, T p is the temperature measured value, Out T1 is the temperature control transition output value, and the range of Out T1 is -100% ≤ Out T1 ≤ 100%; Set Out T2 as the temperature control output value, Out T2 = Out T1 / Out RH ; When Out T1 / Out RH < -1, Out T2 = -100%, when Out T1 / Out RH > 1, Out T2 = 100%; Set the execution period Time of the control valve (4) V ; Set the execution cycle Time of the heating system (5) H ; Set the execution cycle Time of the cooling system (6) C ; S3, the control system controls the humidity and temperature in the standard curing chamber body (1): The opening time Time of the control valve (4) within one execution cycle Von = Time V *Out RH ; When Out T1 > 0, the heating system (5) is started and the cooling system (6) is turned off. The on-time Time of the heating system (5) within one execution cycle Hon = Time H * Out T2 ; When Out T1 <0, the cooling system (6) starts and the heating system (5) shuts down. The on-time Time of the cooling system (6) within one execution cycle Con = -Time C *Out T2 . S4, repeating S3 until the humidity and temperature no longer need to be controlled.

10. The method for using the energy-saving standard curing room according to claim 9, characterized in that, The humidity control function f RH and the temperature control function f T are PID control functions.

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