Temperature control pneumatic valve interlocking control system

Abstract

The utility model provides a temperature control pneumatic valve interlocking control system which comprises a reaction barrel, a temperature sensor is arranged inside the reaction barrel, a side pipe is communicated with the inside of the reaction barrel, and a circulating pipe is communicated with the outer side of the reaction barrel. The circulating assembly is arranged at one end of a circulating pipe and comprises a circulating pump, a flow cell, an online PH meter, a connecting pipe and a single-action pneumatic switch valve, the circulating pump is arranged at the end, away from the reaction barrel, of the circulating pipe, and the flow cell is arranged on the front surface of the circulating pump. The temperature control pneumatic valve interlocking control system solves the problems that in the actual production process, the production process is complex, the process condition change is large, the installation and use requirements cannot be met in the whole production process, the pH value measurement accuracy of materials is low, and the product percent of pass is affected.

Description

Technical Field

[0001] The utility model relates to the field of pH measurement, in particular to a temperature-controlled pneumatic valve interlock control system. Background Technique

[0002] The pH value refers to the acidity and alkalinity, and its full name is the hydrogen ion concentration index. It is an important indicator to measure the acidity and alkalinity of a solution. It represents the negative logarithm of the activity of hydrogen ions (H+) in the solution. [H+] represents the concentration of hydrogen ions in the solution, and the unit is moles per liter. Among them, the pH value of water is 7 as neutral. When pH < 7, it is acidic, and when pH > 7, it is alkaline. In industrial fields such as chemical engineering, pharmaceuticals, and food, the precise control of the pH value is an important link to ensure product quality and production process safety.

[0003] At present, online pH measurement instruments are widely used in the long-term monitoring and limit value monitoring of stable process conditions in the chemical industry, wastewater treatment, etc. Due to the particularity of its pH electrode, there are certain restrictions on environmental conditions. The process temperature and process pressure must meet the installation requirements, and the parameters of the electrode need to be calibrated regularly. However, in the actual production process, its production process is complex, and the process conditions change greatly, and it cannot meet the installation and use requirements throughout the production process. As a result, the measurement accuracy of the pH value of the material is relatively low, affecting the product qualification rate.

[0004] Therefore, it is necessary to provide a new temperature-controlled pneumatic valve interlock control system to solve the above technical problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a temperature-controlled pneumatic valve interlock control system, which interlocks with the actual temperature of the production material and the single-acting pneumatic switch valve of the circulation pipeline. Under the condition of meeting the installation conditions of the pH meter, it can accurately measure the pH value of the material, thereby improving the qualification rate of the production product.

[0006] The temperature-controlled pneumatic valve interlock control system provided by the utility model includes a reaction tank, a temperature sensor is arranged inside the reaction tank, a side pipe is communicated inside the reaction tank, and a circulation pipe is communicated outside the reaction tank; a circulation component, one end of the circulation pipe of the circulation component, the circulation component includes a circulation pump, a flow-through tank, an online pH meter, a connecting pipe and a single-acting pneumatic switch valve. A circulation pump is arranged at the end of the circulation pipe far away from the reaction tank, a flow-through tank is arranged on the front surface of the circulation pump, an online pH meter is arranged inside the flow-through tank, a connecting pipe is communicated inside the flow-through tank, and a single-acting pneumatic switch valve is arranged outside the connecting pipe.

[0007] As a temperature control pneumatic valve interlock control system provided by the present utility model, preferably, a sampling pipe is communicated inside the connecting pipe, and one end of the circulating pipe away from the reaction barrel is communicated with a first metal hose, and the other end of the first metal hose is communicated with the water inlet of the circulating pump.

[0008] As a temperature control pneumatic valve interlock control system provided by the present utility model, preferably, the water outlet of the circulating pump is communicated with a second metal hose, and one end of the second metal hose away from the circulating pump is communicated with a top pipe, and the other end of the top pipe away from the second metal hose is communicated with the flow-through cell.

[0009] As a temperature control pneumatic valve interlock control system provided by the present utility model, preferably, a fixing rod is fixedly connected inside the flow-through cell, and a spring is sleeved outside the fixing rod.

[0010] As a temperature control pneumatic valve interlock control system provided by the present utility model, preferably, one end of the spring is welded with a connecting frame, and a snap ring is fixedly connected to the rear surface of the connecting frame.

[0011] As a temperature control pneumatic valve interlock control system provided by the present utility model, preferably, a soft pad is arranged on the inner ring of the snap ring, a placing pipe is communicated inside the reaction barrel, and a sealing ring is arranged inside the placing pipe.

[0012] As a temperature control pneumatic valve interlock control system provided by the present utility model, preferably, a rotating pipe is rotatably connected to the outside of the placing pipe, and a moving rod is threadedly connected inside the rotating pipe.

[0013] As a temperature control pneumatic valve interlock control system provided by the present utility model, preferably, one end of the moving rod is fixedly connected with a moving frame, and an arc plate is fixedly connected to the rear surface of the moving frame.

[0014] Compared with the prior art, the beneficial effects of the present utility model are:

[0015] The temperature-controlled pneumatic valve interlock control system, by setting a circulation component, when using this device, after the material enters the reaction barrel, the temperature sensor measures the temperature of the material inside the reaction barrel, and then transmits the signal to the DCS. When the material temperature does not reach the specified threshold, the pneumatic valve will not open, and then the temperature of the material inside the reaction barrel is controlled. When the material temperature reaches, the single-acting pneumatic switch valve can be opened, and at the same time, the circulation pump is started, so that the material can enter the inside of the first metal hose through the circulation pipe. Then, under the action of the circulation pump, the material starts to flow. After the material enters the flow-through cell, the pH value of the material inside the flow-through cell can be monitored online by the online pH meter, and then the next process is carried out. When it is necessary to consider heating the material, the circulation pump and the single-acting pneumatic switch valve can be closed, so that the temperature of the material is further increased. When the actual temperature is higher than the set parameter, the circulation pump and the single-acting pneumatic switch valve are automatically closed, so that the temperature of the material can be controlled to reach the specified threshold, solving the problems in the existing actual production process that the production process is complex, the process conditions change greatly, it cannot meet the installation and use requirements throughout the production process, and thus the measurement accuracy of the pH value of the material is relatively low, affecting the product qualification rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 6 is a schematic structural diagram of a preferred embodiment of the temperature-controlled pneumatic valve interlock control system provided by the present invention;

[0017] Figure 2 is Figure 1 a schematic structural diagram of the shown circulation component;

[0018] Figure 3 is Figure 1 a schematic structural connection diagram of the shown circulation pump and circulation pipe;

[0019] Figure 4 is Figure 1 a schematic structural connection diagram of the shown fixed rod and snap ring;

[0020] Figure 5 is Figure 1 a schematic structural connection diagram of the shown placement pipe and temperature sensor.

[0021] Reference numerals in the figure: 1, reaction barrel; 2, temperature sensor; 3, side pipe; 4, circulation pipe; 5, circulation component; 51, circulation pump; 52, flow-through cell; 53, online pH meter; 54, connecting pipe; 55, single-acting pneumatic switch valve; 6, sampling pipe; 7, first metal hose; 8, second metal hose; 9, top pipe; 10, fixed rod; 11, spring; 12, connecting frame; 13, snap ring; 14, soft pad; 15, placement pipe; 16, rotating pipe; 17, moving rod; 18, moving frame; 19, arc plate; 20, sealing ring. Detailed implementation manners

[0022] The present utility model will be further described below in conjunction with the accompanying drawings and implementation manners.

[0023] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 wherein Figure 1 is a schematic structural diagram of a preferred embodiment of the temperature-controlled pneumatic valve interlock control system provided by the present utility model; Figure 2 is Figure 1 a schematic structural diagram of the circulation component shown; Figure 3 is Figure 1 a schematic structural connection diagram of the circulation pump and the circulation pipe shown; Figure 4 is Figure 1 a schematic structural connection diagram of the fixed rod and the snap ring shown. A temperature-controlled pneumatic valve interlock control system includes a reaction barrel 1, a temperature sensor 2 is arranged inside the reaction barrel 1, a side pipe 3 is communicated inside the reaction barrel 1, and a circulation pipe 4 is communicated outside the reaction barrel 1;

[0024] A circulation component 5, one end of the circulation pipe 4 of the circulation component 5, the circulation component 5 includes a circulation pump 51, a circulation pool 52, an on-line pH meter 53, a connecting pipe 54 and a single-acting pneumatic switch valve 55. A circulation pump 51 is arranged at one end of the circulation pipe 4 far away from the reaction barrel 1. A circulation pool 52 is arranged on the front surface of the circulation pump 51. An on-line pH meter 53 is arranged inside the circulation pool 52. A connecting pipe 54 is communicated inside the circulation pool 52. A single-acting pneumatic switch valve 55 is arranged outside the connecting pipe 54.

[0025] In the specific implementation process, as Figure 2 and Figure 3 shown, a sampling pipe 6 is communicated inside the connecting pipe 54, and a first metal hose 7 is communicated at one end of the circulation pipe 4 far away from the reaction barrel 1. The other end of the first metal hose 7 is communicated with the water inlet of the circulation pump 51.

[0026] The water outlet of the circulation pump 51 is communicated with a second metal hose 8. The end of the second metal hose 8 far away from the circulation pump 51 is communicated with a top pipe 9. The end of the top pipe 9 far away from the second metal hose 8 is communicated with the circulation pool 52.

[0027] It should be noted that when this device is in use, the material enters the interior of the reaction barrel 1. Under the action of the temperature sensor 2, the temperature inside the reaction barrel 1 is measured. When the temperature of the material reaches the specified temperature threshold, the temperature sensor 2 transmits a signal to the DCS, and then the circulation pump 51 and the single-acting pneumatic switch valve 55 are opened. Under the action of the circulation pump 51, the material can enter the interior of the first metal hose 7 through the connecting pipe 54, and then through the second metal hose 8, the material enters the interior of the flow cell 52. Under the action of the on-line pH meter 53 inside the flow cell 52, the acidity and alkalinity of the material inside the flow cell 52 can be measured, thereby improving the accuracy of the acidity and alkalinity measurement of the material, enhancing the reliability of the data, and further improving the qualification rate of the produced products.

[0028] Reference Figure 2 and Figure 4 As shown, a fixing rod 10 is fixedly connected inside the flow cell 52, and a spring 11 is sleeved outside the fixing rod 10.

[0029] One end of the spring 11 is welded with a connecting frame 12, and a snap ring 13 is fixedly connected to the rear surface of the connecting frame 12.

[0030] A soft pad 14 is arranged inside the inner ring of the snap ring 13. A placement pipe 15 is communicated inside the reaction barrel 1, and a sealing ring 20 is arranged inside the placement pipe 15.

[0031] It should be noted that when positioning and installing on-line pH meters 53 of different sizes, first push the connecting frame 12 to make the connecting frame 12 slide outside the fixing rod 10, thereby compressing the spring 11. After the snap ring 13 moves to the specified position, place the on-line pH meter 53 at the specified position, and then release the connecting frame 12. Under the elastic force of the spring 11, the snap ring 13 can position the on-line pH meter 53, thus facilitating the staff to disassemble, install or replace it.

[0032] Reference Figure 1 and Figure 5 As shown, a rotating pipe 16 is rotatably connected to the outside of the placement pipe 15, and a moving rod 17 is threadedly connected inside the rotating pipe 16.

[0033] One end of the moving rod 17 is fixedly connected with a moving frame 18, and an arc plate 19 is fixedly connected to the rear surface of the moving frame 18.

[0034] It should be noted that: when the rotating tube 16 is rotated, the movement of the rotating tube 16 can drive the movement of the moving rod 17, and further enable the moving rod 17 to drive the movement of the arc plate 19, so as to position and fix the temperature sensor 2. At the same time, under the action of the sealing ring 20, the connection between the placement tube 15 and the temperature sensor 2 can be made closer, so that the temperature sensor 2 can measure the temperature of the material inside the reaction barrel 1.

[0035] The working principle of a temperature control pneumatic valve interlock control system provided by the present invention is as follows:

[0036] When the staff needs to measure the pH value of the material through this device, first, the material is made to enter the inside of the reaction barrel 1. Then, the staff measures the temperature of the material inside the reaction barrel 1 through the temperature sensor 2. After the measurement is completed, the temperature sensor 2 sends a signal to the DCS. When the material temperature reaches the specified threshold, the circulation pump 51 and the single-acting pneumatic switch valve 55 are started, and then the material can enter the inside of the flow cell 52 through the circulation pipe, the first metal hose 7, the second metal hose 8, and the top pipe 9, so that the on-line pH meter 53 inside the flow cell 52 can measure the acidity and alkalinity of the material, thereby improving the accuracy of the material acidity and alkalinity measurement, improving the reliability of the data, and improving the product qualification rate.

[0037] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A temperature-controlled pneumatic valve interlock control system, characterized in that, including a reaction barrel (1), a temperature sensor (2) is arranged inside the reaction barrel (1), a side pipe (3) is communicated inside the reaction barrel (1), and a circulation pipe (4) is communicated outside the reaction barrel (1); a circulation assembly (5) is at one end of the circulation pipe (4). The circulation assembly (5) includes a circulation pump (51), a flow-through cell (52), an online pH meter (53), a connecting pipe (54) and a single-acting pneumatic switch valve (55). A circulation pump (51) is arranged at the end of the circulation pipe (4) far from the reaction barrel (1). A flow-through cell (52) is arranged on the front surface of the circulation pump (51). An online pH meter (53) is arranged inside the flow-through cell (52). A connecting pipe (54) is communicated inside the flow-through cell (52). A single-acting pneumatic switch valve (55) is arranged on the outer side of the connecting pipe (54).

2. The temperature control pneumatic valve interlock control system according to claim 1, wherein, A sampling pipe (6) is communicated inside the connecting pipe (54). A first metal hose (7) is communicated at the end of the circulation pipe (4) far from the reaction barrel (1). The other end of the first metal hose (7) is communicated with the water inlet of the circulation pump (51).

3. The temperature control pneumatic valve interlock control system according to claim 1, characterized in that, The water outlet of the circulation pump (51) is communicated with a second metal hose (8). The end of the second metal hose (8) far from the circulation pump (51) is communicated with a top pipe (9). The end of the top pipe (9) far from the second metal hose (8) is communicated with the flow-through cell (52).

4. The temperature control pneumatic valve interlock control system according to claim 1, wherein, A fixing rod (10) is fixedly connected inside the flow-through cell (52). A spring (11) is sleeved on the outer side of the fixing rod (10).

5. The temperature control pneumatic valve interlock control system according to claim 4, characterized in that, One end of the spring (11) is welded with a connecting frame (12). A snap ring (13) is fixedly connected to the rear surface of the connecting frame (12).

6. The temperature-controlled pneumatic valve interlock control system according to claim 5, characterized in that, A soft pad (14) is arranged on the inner ring of the snap ring (13). A placement pipe (15) is communicated inside the reaction barrel (1). A sealing ring (20) is arranged inside the placement pipe (15).

7. The temperature control pneumatic valve interlock control system according to claim 6, characterized in that, A rotating pipe (16) is rotatably connected to the outer side of the placement pipe (15). A moving rod (17) is threadedly connected inside the rotating pipe (16).

8. The temperature control pneumatic valve interlock control system according to claim 7, characterized in that, One end of the moving rod (17) is fixedly connected with a moving frame (18). An arc plate (19) is fixedly connected to the rear surface of the moving frame (18).

Images