Temperature and humidity control system of multi-section surface air cooler

Abstract

The utility model discloses a temperature and humidity control system of a multi-section surface air cooler. The temperature and humidity control system comprises a controller, a main regulating valve and branch regulating valves. The multi-section type surface air cooler is provided with a plurality of sections of independent surface air coolers, the freezing main water inlet pipe is connected with a water inlet of a first section of surface air cooler of the multi-section type surface air cooler, and the main adjusting valve is arranged on the freezing main water inlet pipe and used for adjusting the amount of circulating freezing water entering the first section of surface air cooler. The output end of the main adjusting valve is further connected with a plurality of freezing water inlet branch pipes, the freezing water inlet branch pipes are connected with water inlets of corresponding sections of surface air coolers of the multi-section type surface air cooler in a one-to-one correspondence mode, and the branch adjusting valves are arranged on the freezing water inlet branch pipes and used for adjusting the circulating freezing water amount of the corresponding sections of surface air coolers. The controller controls the opening degree of the main adjusting valve and the opening degree of the branch adjusting valve according to the temperature and humidity in the workshop so as to linearly adjust water inflow in a piecewise mode according to the required cooling capacity, and the temperature and humidity of the workshop can meet the requirements. According to the utility model, energy waste can be reduced, and the accuracy of temperature and humidity adjustment is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of workshop temperature and humidity control, more particularly to a multi-section surface air cooler temperature and humidity control system. BACKGROUND

[0002] The existing factory workshop needs to control the production environment temperature and humidity according to the production process and personnel working environment requirements, and the main control means is to use the combined air conditioner to send the workshop return air and fresh air to the production workshop after temperature and humidity treatment. In summer, when the outside air is high temperature and high humidity, a surface air cooler is needed to cool and dehumidify the air, and the design load capacity of the surface air cooler is generally designed according to the maximum load of local meteorological conditions for many years, which is used under normal meteorological conditions. The surface air cooler has the problem of excess design capacity. Moreover, the dehumidification cooling capacity is greater than the cooling capacity, and in the adjustment process, it is easy to appear that the humidity is reduced to the target, and the temperature is lower than the target value, which needs to use steam to warm the air that is excessively cooled, which causes waste of energy such as chilled water and steam. Therefore, how to accurately control the temperature and humidity of the workshop has important significance. SUMMARY

[0003] The utility model provides a multi-section surface air cooler temperature and humidity control system, solves the problem that the temperature and humidity of the existing workshop are controlled by the surface air cooler and are not adjusted synchronously, which easily causes energy waste, can reduce energy waste, and improves the work efficiency of equipment operation.

[0004] To achieve the above purpose, the utility model provides the following technical scheme:

[0005] A multi-section surface air cooler temperature and humidity control system, comprising: a controller, a total regulating valve and a sub-regulating valve;

[0006] The multi-section surface air cooler is provided with multiple independent surface air coolers, a chilled water total inlet pipe is connected with the water inlet of the first section surface air cooler of the multi-section surface air cooler, the total regulating valve is arranged on the chilled water total inlet pipe and is used for adjusting the circulating chilled water amount entering the first section surface air cooler;

[0007] The output end of the total regulating valve is also connected with multiple chilled water inlet branch pipes, each chilled water inlet branch pipe is connected with the water inlet of the corresponding section surface air cooler of the multi-section surface air cooler in one-to-one correspondence, and the sub-regulating valve is arranged on the chilled water inlet branch pipe and is used for adjusting the circulating chilled water amount of the corresponding section surface air cooler;

[0008] The water outlet of the first section surface air cooler and the water outlet of the other corresponding section surface air coolers are all in communication with a chilled water outlet pipe;

[0009] The controller is connected with the control end of the total regulating valve and the sub-regulating valve respectively, and controls the opening of the total regulating valve and the sub-regulating valve according to the temperature and humidity in the workshop, so as to linearly regulate the water inlet in sections according to the cooling demand, and to make the temperature and humidity in the workshop meet the requirements.

[0010] Preferably, the temperature and humidity sensor is further included.

[0011] The temperature and humidity sensor is connected with the controller, and is used for detecting the temperature and humidity in the workshop.

[0012] The controller controls the opening of the total regulating valve and the sub-regulating valve according to the temperature and humidity detected by the temperature and humidity sensor.

[0013] Preferably, the display screen is further included.

[0014] The display screen is connected with the controller, and the display screen is provided with a human-computer interaction operation interface, and an operator sends an interaction instruction through the human-computer interaction operation interface to control the opening of the total regulating valve and the sub-regulating valve, and to check the temperature and humidity in the workshop.

[0015] Preferably, the alarm device is further included.

[0016] The alarm device is connected with the controller, and the controller controls the alarm device to alarm when the temperature and humidity in the workshop exceed the corresponding set threshold.

[0017] Preferably, the alarm device at least includes any one of the following: an indicator light, a buzzer and a sound-light alarm.

[0018] Preferably, a three-stage surface cooler is used to regulate the temperature and humidity in the workshop.

[0019] Preferably, during the temperature and humidity regulation process, the controller controls the opening of the sub-regulating valve corresponding to the second-stage surface cooler when the opening of the total regulating valve reaches 100%, and then controls the opening of the sub-regulating valve corresponding to the third-stage surface cooler when the opening of the sub-regulating valve corresponding to the second-stage surface cooler reaches 100%, so as to make the temperature and humidity in the workshop meet the requirements.

[0020] Preferably, when the temperature and humidity in the workshop are over-regulated, the controller adjusts and closes the sub-regulating valve corresponding to the third-stage surface cooler, the sub-regulating valve corresponding to the second-stage surface cooler and the total regulating valve in sequence.

[0021] Preferably, the controller is a PLC programmable controller.

[0022] The utility model provides a kind of temperature and humidity control system of multi-section surface condenser, the water intake of each corresponding section surface condenser of multi-section surface condenser is controlled respectively by total regulating valve and sub-regulating valve, to carry out accurate control to the temperature and humidity of workshop, solve the problem that temperature and humidity adjustment is not synchronous in the temperature and humidity control of existing workshop using surface condenser, energy waste is easily caused, energy waste can be reduced, improve the work efficiency of equipment operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to make the person in the technical field better understand the scheme of the embodiment of the utility model, the embodiment of the utility model will be further explained in detail below in combination with drawings and implementation.

[0024] Figure 1 It is a kind of temperature and humidity control system of multi-section surface condenser provided by the utility model. DETAILED DESCRIPTION

[0025] In order to make the person in the technical field better understand the scheme of the embodiment of the utility model, the embodiment of the utility model will be further explained in detail below in combination with drawings and implementation.

[0026] In view of the problem that temperature and humidity adjustment is not synchronous in the temperature and humidity control of current workshop using surface condenser, the utility model provides a kind of temperature and humidity control system of multi-section surface condenser, solves the problem that temperature and humidity is not synchronous in the temperature and humidity control of existing workshop using surface condenser, energy waste is easily caused, energy waste can be reduced, improve the work efficiency of equipment operation.

[0027] As Figure 1 As shown in a kind of temperature and humidity control system of multi-section surface condenser, comprising: controller, total regulating valve 2 and sub-regulating valve.Multiple independent surface condensers are provided in multi-section surface condenser, refrigeration total water inlet pipe is connected with the water inlet of the first section surface condenser 3 of multi-section surface condenser, the total regulating valve 2 is arranged on refrigeration total water inlet pipe, for adjusting the circulating refrigeration water amount of entering the first section surface condenser 3.The output end of the total regulating valve 2 is also connected with multiple refrigeration water inlet branch pipes, each refrigeration water inlet branch pipe is connected with the water inlet of corresponding section surface condenser of multi-section surface condenser one by one, the sub-regulating valve is arranged on the refrigeration water inlet branch pipe, for adjusting the circulating refrigeration water amount of corresponding section surface condenser.The water outlet of the first section surface condenser and the water outlet of other corresponding section surface condenser are all communicated with refrigeration water outlet pipe 8.The controller is signal connected with the control end of the total regulating valve and the sub-regulating valve respectively, and according to the temperature and humidity in workshop, the opening of the total regulating valve and the sub-regulating valve is controlled respectively, so as to linearly regulate water intake according to cooling demand, so that the temperature and humidity of workshop meet requirements.

[0028] Specifically, the multi-section surface cooler is provided with multiple independent surface coolers, and the multiple surface coolers are synchronously water-inletting, and the water-inletting is linearly adjusted in sections according to the cooling demand. First, a freezing total water-inlet pipe is connected with the water-inlet of the first section surface cooler, and a total adjusting valve is arranged on the freezing total water pipe to adjust the freezing water-inlet amount of the first section surface cooler. The output end of the total adjusting valve is further connected with multiple freezing water-inlet branch pipes, each of which is connected with the water-inlet of a corresponding section surface cooler, and each of the freezing water-inlet branch pipes is provided with a branch adjusting valve to separately control the freezing water-inlet amount of each section surface cooler, so that the coordinated control of the temperature and humidity reduction in the surface cooling section is realized, and the energy waste caused by excessive temperature reduction and reheating is effectively avoided.

[0029] The system further comprises a temperature and humidity sensor, which is signal connected with the controller and used to detect the temperature and humidity in the workshop; the controller controls the opening degrees of the total adjusting valve and the branch adjusting valves according to the temperature and humidity detected by the temperature and humidity sensor.

[0030] The system further comprises a display screen, which is signal connected with the controller and provided with a man-machine interactive operation interface, and an operator sends an interactive instruction through the man-machine interactive operation interface to control the opening degrees of the total adjusting valve and the branch adjusting valves and check the temperature and humidity in the workshop.

[0031] The system further comprises an alarm device, which is signal connected with the controller, and the controller controls the alarm device to alarm when the temperature and humidity in the workshop both exceed the corresponding set threshold.

[0032] Further, the alarm device at least comprises any one of the following: an indicator light, a buzzer and a sound-light alarm.

[0033] Further, a three-section surface cooler is used to adjust the temperature and humidity in the workshop.

[0034] Further, during the temperature and humidity adjustment, the controller controls the opening degree adjustment of the branch adjusting valve corresponding to the second section surface cooler when the opening degree of the total adjusting valve reaches 100%, and then controls the opening degree adjustment of the branch adjusting valve corresponding to the third section surface cooler when the opening degree of the branch adjusting valve corresponding to the second section surface cooler reaches 100%, so that the temperature and humidity in the workshop meet the requirements.

[0035] Further, when the temperature and humidity in the workshop is over-adjusted, the controller adjusts and closes the branch adjusting valve corresponding to the third section surface cooler, the branch adjusting valve corresponding to the second section surface cooler and the total adjusting valve in the order.

[0036] Further, the controller adopts a PLC programmable controller.

[0037] In an embodiment, when high temperature and high humidity weather occurs in summer, under the control of the PLC programmable controller 9, first open the chilled water total regulating valve 2, the chilled water enters the first stage of the air cooler 3 through the total water inlet pipe, the air cooled and dehumidified by the first stage of the air cooler 3 is mixed with the air not cooled and dehumidified by the second stage of the air cooler 4 and the third stage of the air cooler 6, and the opening degree of the total regulating valve 2 is adjusted according to the requirement, so that the temperature and humidity of the mixed air meet the requirement; when the opening degree of the total regulating valve 2 reaches 100%, the second stage of the air cooler is opened, the chilled water enters the second stage of the air cooler 4, the air cooled and dehumidified by the first stage of the air cooler 3 and the second stage of the air cooler 4 is mixed with the air not cooled and dehumidified by the third stage of the air cooler 6, and the opening degree of the second stage of the air cooler is adjusted according to the requirement, so that the temperature and humidity of the mixed air meet the requirement; when the opening degree of the second stage of the air cooler reaches 100%, the third stage of the air cooler is opened, and the air passing through the third stage meets the temperature and humidity requirement. When over-regulation occurs, the third stage of the air cooler, the second stage of the air cooler and the total regulating valve 2 are adjusted and closed in sequence, and the chilled water of each stage of the air cooler is discharged through the total water outlet pipe 8.

[0038] It can be seen that the temperature and humidity control system of the multi-stage air cooler can control the water inlet amount of each corresponding stage of the multi-stage air cooler through the total regulating valve and the sub-regulating valve, so as to accurately control the temperature and humidity of the workshop, solve the problem that the temperature and humidity of the existing workshop controlled by the air cooler are not adjusted synchronously, and energy waste is caused, reduce energy waste, and improve the working efficiency of equipment operation.

[0039] The above describes the structure, characteristics and effect of the utility model according to the embodiment shown in the drawing, the above is only a preferred embodiment of the utility model, but the utility model is not limited to the embodiment shown in the drawing, any change or modification made according to the concept of the utility model, or the equivalent embodiment of equivalent change, as long as it is within the scope of the utility model.

Claims

1. A temperature and humidity control system for a multi-stage surface cooler, characterized in that, Comprise: A controller, a total regulating valve and a branch regulating valve; A multi-stage surface cooler is provided with multiple independent surface coolers, a total chilled water inlet pipe is connected with a water inlet of a first-stage surface cooler of the multi-stage surface cooler, the total regulating valve is arranged on the total chilled water inlet pipe and used for regulating the circulating chilled water amount entering the first-stage surface cooler; An output end of the total regulating valve is further connected with multiple chilled water inlet branch pipes, each chilled water inlet branch pipe is connected with a water inlet of a corresponding-stage surface cooler of the multi-stage surface cooler in one-to-one correspondence, the branch regulating valve is arranged on the chilled water inlet branch pipe and used for regulating the circulating chilled water amount of the corresponding-stage surface cooler; A water outlet of the first-stage surface cooler and water outlets of other corresponding-stage surface coolers are all communicated with a chilled water outlet pipe; The controller is signal-connected with control ends of the total regulating valve and the branch regulating valve respectively, and opens degrees of the total regulating valve and the branch regulating valve are controlled according to the temperature and humidity in the workshop, so that the water inlet is linearly regulated in sections according to the cooling demand, and the temperature and humidity in the workshop reach the requirements.

2. The temperature and humidity control system of a multi-stage surface cooler as claimed in claim 1, wherein, Further comprise: A temperature and humidity sensor; The temperature and humidity sensor is signal-connected with the controller and used for detecting the temperature and humidity in the workshop; The controller controls the opening degrees of the total regulating valve and the branch regulating valve according to the temperature and humidity detected by the temperature and humidity sensor.

3. The temperature and humidity control system for a multi-stage surface cooler as claimed in claim 2 wherein, Further comprise: A display screen; The display screen is signal-connected with the controller, the display screen is provided with a man-machine interactive operation interface, an operator sends an interactive instruction through the man-machine interactive operation interface to control the opening degrees of the total regulating valve and the branch regulating valve, and the temperature and humidity in the workshop are viewed.

4. The temperature and humidity control system for a multi-stage surface cooler as claimed in claim 3 wherein, Further comprise: An alarm device; The alarm device is signal-connected with the controller, and the controller controls the alarm device to alarm when the temperature and humidity in the workshop all exceed corresponding set thresholds.

5. The multi-stage surface cooler temperature and humidity control system of claim 4, wherein, The alarm device at least comprises any one of the following: an indicating lamp, a buzzer and a sound-light alarm.

6. The temperature and humidity control system for a multi-stage surface cooler as claimed in claim 5 wherein, A three-stage surface cooler is used to regulate the temperature and humidity in the workshop.

7. The temperature and humidity control system for a multi-stage surface cooler as claimed in claim 6 wherein, During the temperature and humidity regulation process, the controller controls the opening degree regulation of the branch regulating valve corresponding to the second-stage surface cooler when the opening degree of the total regulating valve reaches 100%, and then controls the opening degree regulation of the branch regulating valve corresponding to the third-stage surface cooler when the opening degree of the branch regulating valve corresponding to the second-stage surface cooler reaches 100%, so that the temperature and humidity in the workshop reach the requirements.

8. The temperature and humidity control system for a multi-stage surface cooler as claimed in claim 7 wherein, When the temperature and humidity in the workshop are over-regulated, the controller regulates and closes the branch regulating valve corresponding to the third-stage surface cooler, the branch regulating valve corresponding to the second-stage surface cooler and the total regulating valve in sequence.

9. The temperature and humidity control system of a multi-stage surface cooler according to any one of claims 1 to 8, wherein The controller adopts a PLC programmable controller.

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