A system and method for constant micro-mist humidification of water supply pressure

Abstract

This invention relates to a system and method for maintaining a constant micro-mist humidification water supply pressure. The system includes a boiler room water supply tank, a water pump, a first expansion tank, a safety valve, a constant pressure stabilizing device, a tiered pressure stabilizing device, an air conditioning unit, and a terminal pressure stabilizing device. The technical solution ensures the normal operation of the micro-mist humidification system, preventing air temperature increases caused by steam humidification in cigarette production workshops under constant temperature and humidity conditions in summer and autumn. By using a pressure stabilizing device, the insufficient pressure caused by excessively long water supply pipelines and too many branch pipes in the main water supply pipe is resolved, ensuring the inlet pressure of the micro-mist humidification system reaches the rated operating pressure and guaranteeing the normal operation of the micro-mist humidification system.

Description

Technical Field

[0001] This invention belongs to the field of auxiliary technology for cigarette production, specifically relating to a system and method for constant micro-mist humidification water supply pressure. Background Technology

[0002] The high-pressure filter nozzles of high-pressure micro-mist humidifiers feature fine spray, no wear, low pressure loss, anti-clogging, and no dripping. The working principle of high-pressure humidification is to use a high-pressure plunger pump to increase the water pressure to 70 kg / cm², and then atomize the pressurized water through a high-pressure resistant pipeline via specialized nozzles, producing 3-15 μm micro-mist particles. These particles rapidly absorb heat from the air, vaporize, and diffuse, thus achieving the purpose of humidifying and cooling the air.

[0003] To ensure the process standards in the cigarette packaging workshop, the air conditioning units in cigarette factories must maintain constant temperature and humidity. Typically, multiple air conditioning units are used in each workshop, each equipped with two humidification systems: one for steam humidification and one for mist humidification. Steam humidification causes the air temperature to rise, increasing the energy consumption of the refrigeration unit. While steam humidification is used in spring and winter, mist humidification can solve the problem of increased air temperature in summer and autumn when the ambient temperature is higher. However, the current use of mist humidification is limited by fluctuations in the water supply pressure.

[0004] The water used in current micro-mist humidification systems is supplied by the demineralized water tank in the boiler room, and then pressurized by a water pump before being sent to the air conditioning unit. For example, the commonly used Humi Fog micro-mist humidification system requires a water supply pressure of 0.3-0.8 MPa. If the water pressure is lower than 0.3 MPa or higher than 0.8 MPa, the micro-mist humidification system will trip and become unusable. Summary of the Invention

[0005] The purpose of this invention is to provide a system and method for constant micro-mist humidification water supply pressure to solve the problems existing in the background art.

[0006] To achieve the above objectives, this application employs the following technical solution:

[0007] A system for constant micro-mist humidification water supply pressure includes a boiler room water supply tank, a water pump, a first expansion tank, a safety valve, a constant pressure stabilizing device, a stratified pressure stabilizing device, an air conditioning unit, and a terminal pressure stabilizing device.

[0008] The outlet of the boiler room water supply tank is connected to the inlet of the water pump via a pipeline. The outlet of the water pump is connected to the inlet of the first expansion tank via a pipeline. The outlet of the first expansion tank is connected to the inlet of the safety valve. The outlet of the safety valve is connected to the inlet of the constant pressure stabilizing device via a pipeline. The outlet of the constant pressure stabilizing device is connected to the inlet of the stratified pressure stabilizing device via a pipeline. The outlet of the stratified pressure stabilizing device is connected to the air conditioning water supply pipeline. The air conditioning water supply pipeline is connected to the air conditioning unit via a branch pipe. At the end of the air conditioning water supply pipeline, at the branch pipe of the two air conditioning units, a terminal pressure stabilizing device is installed.

[0009] Furthermore, the constant voltage stabilizing device comprises two expansion tanks connected in series, namely a second expansion tank and a third expansion tank.

[0010] Furthermore, both the layered pressure stabilizing device and the terminal pressure stabilizing device are expansion tanks.

[0011] Furthermore, the tiered pressure stabilizing device includes an upper pressure stabilizing device and a lower pressure stabilizing device, which are respectively connected to the air conditioning water supply pipeline. The air conditioning water supply pipeline connected to the upper pressure stabilizing device is connected to the air conditioning unit located on the upper layer, and the air conditioning water supply pipeline connected to the lower pressure stabilizing device is respectively connected to the air conditioning unit located on the lower layer.

[0012] Furthermore, under operating conditions, the constant pressure of the first expansion tank > the pressure of the constant pressure stabilizing device > the pressure of the stratified pressure stabilizing device = the pressure of the terminal pressure stabilizing device.

[0013] A method for maintaining a constant micro-mist humidification water supply pressure, utilizing any of the above-mentioned systems, includes the following steps:

[0014] S1. Determine the water supply pressure range under normal operating conditions of the air conditioning micro-mist humidification system;

[0015] S2. Determine that the boiler room outlet pressure meets the pressure range of the main water supply pipe, and the maximum value of the pressure range of the main water supply pipe is not less than the maximum value of the water supply pressure range in step S1, and is greater than the median value of the water supply pressure range in step S1.

[0016] S3. Set the working pressure of the first expansion tank to the first pressure value;

[0017] S4. Set the working pressure of the constant pressure regulator to the second pressure value;

[0018] S5. The working pressure of the layered pressure stabilizing device and the terminal pressure stabilizing device is set to the third pressure value.

[0019] Furthermore, the first pressure value is the maximum value of the water supply pressure range in step S1, the second pressure value is the median value of the water supply pressure range in step S1, and the third pressure value is less than the second pressure value and greater than the minimum value of the water supply pressure range in step S1.

[0020] The beneficial effects of this invention are:

[0021] 1. This technical solution enables the normal operation of the micro-mist humidification system, ensuring that the cigarette production workshop can maintain constant temperature and humidity in summer and autumn, thus solving the problem of increased air temperature caused by steam humidification.

[0022] 2. This technical solution solves the problem of insufficient pressure caused by excessively long water supply pipelines and too many branch pipes in the main water supply pipe by using a pressure stabilizing device, so that the inlet pressure of the micro-mist humidification system reaches the rated working pressure, ensuring the normal use of the micro-mist humidification system. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the water supply pipeline for the micro-mist humidification system of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Boiler room water supply tank; 2. Water pump; 3. Air conditioning unit; 4. Safety valve; 5. Main water supply pipe; 6. Air conditioning water supply pipeline; 8. First expansion tank; 9. Second expansion tank; 10. Third expansion tank; 11. Fourth expansion tank; 12. Fifth expansion tank; 13. Sixth expansion tank; 14. Seventh expansion tank. Detailed Implementation

[0026] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, and should not be construed as limiting the technical solution of the present invention.

[0027] like Figure 1 As shown, a system for constant micro-mist humidification water supply pressure is provided, including a boiler room water supply tank 1, a water pump 2, a first expansion tank 8, a safety valve 4, a constant pressure stabilizing device, a stratified pressure stabilizing device, an air conditioning unit, and a terminal pressure stabilizing device.

[0028] The outlet of the boiler room water supply tank 1 is connected to the inlet of the water pump 2 through a pipeline. The outlet of the water pump 2 is connected to the inlet of the first expansion tank 8 through a pipeline. The outlet of the first expansion tank 8 is connected to the inlet of the safety valve 4. The outlet of the safety valve 4 is connected to the inlet of the constant pressure stabilizing device through a pipeline. The outlet of the constant pressure stabilizing device is connected to the inlet of the stratified pressure stabilizing device through a pipeline. The outlet of the stratified pressure stabilizing device is connected to the air conditioning water supply pipeline. The air conditioning water supply pipeline is connected to the air conditioning unit through a branch pipe. At the end of the air conditioning water supply pipeline, at the branch pipe of the two air conditioning units 3, a terminal pressure stabilizing device is installed.

[0029] Specifically, the constant pressure stabilizing device of this application comprises two expansion tanks connected in series, namely the second expansion tank 9 and the third expansion tank 10. The layered pressure stabilizing device includes an upper pressure stabilizing device and a lower pressure stabilizing device, which are respectively connected to the air conditioning water supply pipeline. The air conditioning water supply pipeline connected to the upper pressure stabilizing device is connected to the air conditioning unit located on the upper layer, and the air conditioning water supply pipeline connected to the lower pressure stabilizing device is respectively connected to the air conditioning unit located on the lower layer.

[0030] This application also provides a method for maintaining a constant micro-mist humidification water supply pressure, utilizing the system described in any of the above, including the following steps:

[0031] S1. Determine the water supply pressure range under normal operating conditions of the air conditioning micro-mist humidification system;

[0032] S2. Determine that the boiler room outlet pressure meets the pressure range of the main water supply pipe, and the maximum value of the pressure range of the main water supply pipe is not less than the maximum value of the water supply pressure range in step S1, and is greater than the median value of the water supply pressure range in step S1.

[0033] S3. Set the working pressure of the first expansion tank to the first pressure value;

[0034] S4. Set the working pressure of the constant pressure regulator to the second pressure value;

[0035] S5. The working pressure of the layered pressure stabilizing device and the terminal pressure stabilizing device is set to the third pressure value.

[0036] Wherein, the first pressure value is the maximum value of the water supply pressure range in step S1, the second pressure value is the median value of the water supply pressure range in step S1, and the third pressure value is less than the second pressure value but greater than the minimum value of the water supply pressure range in step S1.

[0037] Specifically, this explanation will be based on an example where the operating pressure of a micro-mist humidification system is 0.3-0.8 MPa:

[0038] The boiler room water supply tank uses a DN80 water pipe outlet connected to a lightweight stainless steel vertical multistage centrifugal pump, with an outlet pressure of 0.7 MPa, which meets the pressure of the entire ground water supply main pipe.

[0039] The outlet of the lightweight stainless steel vertical multistage centrifugal pump is connected to the inlet of the first expansion tank, maintaining a constant outlet pressure in the main water supply pipe 5.

[0040] Safety valve 4 is connected to the outlet of the first expansion tank 8, with a set pressure of 0.8 MPa, to prevent the main water supply pressure from exceeding 0.8 MPa when the micro-mist humidification system is not in use during production shutdowns.

[0041] The second expansion tank 9 is installed in the middle section of the main water supply pipe 5 and connected to the safety valve. The pressure is 0.6 MPa, which keeps the pressure constant to prevent excessive pressure loss along the entire long ground water supply pipe.

[0042] The third expansion tank 10 is installed between the ground water supply main pipe and the air-conditioned room floor level and is connected to the water supply main pipe. The pressure is constant at 0.6 MPa, and the water pressure loss between floors is constant.

[0043] The fourth expansion tank 11 is installed at the air conditioning water supply pipe 6 in the upper air-conditioned room and is connected to the main water supply pipe 5. The pressure is constant at 0.4 MPa, which is constant to the water supply pressure of the air conditioning unit near the front end of the upper air-conditioned room water supply pipe.

[0044] The fifth expansion tank 12 is installed at the branch pipe of the water supply pipe of the two air conditioning units at the end of the upper air conditioning water supply pipeline. The pressure is constant at 0.4Mpa. It is used to supplement the water consumption of the terminal units when multiple air conditioning units use micro-mist humidification.

[0045] The sixth expansion tank 13 is installed at the air conditioning water supply pipeline of the lower air-conditioned room and is connected to the main water supply pipe. The pressure is constant at 0.4 MPa, which is constant to the water supply pressure of the air conditioning unit near the front end of the lower water supply pipeline.

[0046] The seventh expansion tank 14 is installed at the branch pipe of the water supply pipe of the two air conditioning units at the end of the lower air conditioning water supply pipeline. The pressure is constant at 0.4Mpa. It is used to supplement the water consumption of the terminal units when multiple air conditioning units use micro-mist humidification.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A system for constant micro fog humidification of water supply pressure, characterized in that, This includes boiler room water supply tank, water pump, first expansion tank, safety valve, constant pressure stabilizing device, tiered pressure stabilizing device, air conditioning unit and terminal pressure stabilizing device; The outlet of the boiler room water supply tank is connected to the inlet of the water pump via a pipeline. The outlet of the water pump is connected to the inlet of the first expansion tank via a pipeline. The outlet of the first expansion tank is connected to the inlet of the safety valve. The outlet of the safety valve is connected to the inlet of the constant pressure stabilizing device via a pipeline. The outlet of the constant pressure stabilizing device is connected to the inlet of the stratified pressure stabilizing device via a pipeline. The outlet of the stratified pressure stabilizing device is connected to the air conditioning water supply pipeline. The air conditioning water supply pipeline is connected to the air conditioning unit via a branch pipe. At the end of the air conditioning water supply pipeline, at the branch pipe of the two air conditioning units, a terminal pressure stabilizing device is installed.

2. The system for constant micro-mist humidification water supply pressure according to claim 1, characterized in that, The constant voltage stabilizing device consists of two expansion tanks connected in series, namely the second expansion tank and the third expansion tank.

3. The system for constant micro fog humidification of water supply pressure according to claim 1, characterized by, Both the layered pressure stabilizing device and the terminal pressure stabilizing device are expansion tanks.

4. The system for constant micro fog humidification of water supply pressure according to claim 3, characterized by, The tiered pressure stabilizing device includes an upper pressure stabilizing device and a lower pressure stabilizing device, which are respectively connected to the air conditioning water supply pipeline. The water supply pipeline of the air conditioning water supply connected to the upper pressure stabilizing device is connected to the air conditioning unit located on the upper level, and the air conditioning water supply pipeline of the lower pressure stabilizing device is connected to the air conditioning unit located on the lower level.

5. The system for constant micro fog humidification of water supply pressure according to claim 1, characterized by, Under operating conditions, the constant pressure of the first expansion tank > the pressure of the constant pressure stabilizing device > the pressure of the stratified pressure stabilizing device = the pressure of the terminal pressure stabilizing device.

6. A method of constant micro fog humidification of water supply pressure using the system of any one of the preceding claims 1 to 5, characterized in that, Includes the following steps: S1. Determine the water supply pressure range under normal operating conditions of the air conditioning micro-mist humidification system; S2. Determine that the boiler room outlet pressure meets the pressure range of the main water supply pipe, and the maximum value of the pressure range of the main water supply pipe is not less than the maximum value of the water supply pressure range in step S1, and is greater than the median value of the water supply pressure range in step S1. S3. Set the working pressure of the first expansion tank to the first pressure value; S4. Set the working pressure of the constant pressure regulator to the second pressure value; S5. The working pressure of the layered pressure stabilizing device and the terminal pressure stabilizing device is set to the third pressure value.

7. The method of claim 6, wherein the constant micro fog humidification water supply pressure is achieved by, The first pressure value is the maximum value of the water supply pressure range in step S1, the second pressure value is the median value of the water supply pressure range in step S1, and the third pressure value is less than the second pressure value and greater than the minimum value of the water supply pressure range in step S1.

Images