Carbon dioxide injection equipment

Abstract

The utility model discloses a carbon dioxide injection device which comprises a carbon dioxide liquid storage tank, a gas state pressurizing unit, a liquid state conveying unit, an air purging unit, a PLC control unit and an injection unit, the carbon dioxide liquid storage tank is provided with a weighing platform, and one end of the gas state pressurizing unit and one end of the liquid state conveying unit are both connected with the carbon dioxide liquid storage tank. A branch pipe is arranged at the other end of the gaseous pressurizing unit, the gaseous pressurizing unit is communicated with the liquid conveying unit through the branch pipe, the other end of the liquid conveying unit is connected with the air purging unit and the injection unit, and the injection unit is provided with a pressure sensor and a temperature sensor; the PLC control unit is electrically connected with the weighing table, the gas pressurization unit, the liquid conveying unit, the pressure sensor and the temperature sensor. The carbon dioxide weighing device has the beneficial effects that the automation degree is improved, the weight of carbon dioxide can be accurately metered and controlled, workers are prevented from monitoring the carbon dioxide weighing device all the time, and the workload of the workers is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to carbon dioxide injection technical field, especially a carbon dioxide injection equipment. BACKGROUND

[0002] Carbon dioxide injection equipment is applied to concrete mixing tank injection carbon dioxide, carbon dioxide can have chemical reaction with cement and other components of mixture, make its mineralization into solid calcium carbonate, this helps to improve the compressive strength and hardness of concrete, and in mix proportion reduces cement dosage, this makes concrete producer reduces carbon emission while improves concrete quality, brings economic and climate benefits for concrete producer - realizes the real double -win;

[0003] But at present market, there is little carbon dioxide injection equipment, more cannot carry out automatic control to injection pressure, temperature and the weight to be injected, the design of ordinary manual injection equipment cannot control the injection amount of liquid carbon dioxide accurately, and the degree of automation is also low, needs staff to monitor and record injection flow all the time, consumes a lot of manpower. UTILITY MODEL CONTENT

[0004] In view of above-mentioned defect, the utility model's purpose lies in proposing a carbon dioxide injection equipment with high degree of automation, and can monitor injection pressure, temperature and weight all the time.

[0005] In order to achieve this purpose, the utility model adopts the following technical scheme:

[0006] A carbon dioxide injection equipment, wherein including carbon dioxide storage tank, gaseous pressurizing unit, liquid conveying unit, PLC control unit, air purging unit and injection unit, the carbon dioxide storage tank is equipped with weighing platform, one end of the gaseous pressurizing unit and the liquid conveying unit is connected with the carbon dioxide storage tank, the other end of the gaseous pressurizing unit is provided with branch pipe, the gaseous pressurizing unit is communicated with the liquid conveying unit through the branch pipe, the other end of the liquid conveying unit is connected with the air purging unit and injection unit, the injection unit is provided with pressure sensor and temperature sensor, the PLC control unit is electrically connected with the weighing platform, the gaseous pressurizing unit, the liquid conveying unit and pressure sensor and temperature sensor respectively.

[0007] Preferably, the above-mentioned carbon dioxide injection equipment, the gaseous pressurizing unit includes gas solenoid valve, first safety valve and first pipe body, the first pipe body is connected with the gas solenoid valve and the first safety valve in proper order, one end of the first pipe body is connected with the carbon dioxide storage tank, the other end of the first pipe body is connected with the inlet of the branch pipe, the outlet of the branch pipe is connected with the injection unit.

[0008] Preferably, the carbon dioxide injection equipment, the gaseous pressurizing unit further comprises a first pressure gauge, and the first pipe body is in communication with the first pressure gauge.

[0009] Preferably, the carbon dioxide injection equipment, the liquid conveying unit comprises a liquid solenoid valve, a second safety valve, a second pipe body and a second pressure gauge, the second pipe body is sequentially connected with the liquid solenoid valve, the second safety valve and the second pressure gauge, one end of the second pipe body is connected with the carbon dioxide liquid storage tank, and the other end of the second pipe body is connected with the injection unit.

[0010] Preferably, the carbon dioxide injection equipment, the PLC control unit is respectively provided with a first signal end, a second signal end, a third signal end, a fourth signal end and a fifth signal end, the first signal end is electrically connected with the gas solenoid valve, the second signal end is electrically connected with the liquid solenoid valve, the third signal end is electrically connected with the pressure sensor, the fourth signal end is electrically connected with the weighing table, and the fifth signal end is electrically connected with the temperature sensor.

[0011] Preferably, the carbon dioxide injection equipment further comprises an air purging unit, and the PLC control unit is further provided with a purging signal end, and the PLC control unit is electrically connected with the air purging unit through the purging signal end.

[0012] Preferably, the carbon dioxide injection equipment, the air purging unit comprises an air compressor, a purging pipe, a purging solenoid valve, a stop valve and a check valve, the purging pipe is sequentially connected with the purging solenoid valve, the stop valve and the check valve, one end of the purging pipe is connected with the air compressor, and the other end of the purging pipe is connected with the injection unit; and the purging signal end is electrically connected with the purging solenoid valve.

[0013] Preferably, the carbon dioxide injection equipment, the injection unit comprises a flow guide pipe and a nozzle, the flow guide pipe is sequentially in communication with the pressure sensor and the temperature sensor, one end of the flow guide pipe is connected with the second pipe body, and the other end of the flow guide pipe is connected with the nozzle; and the other end of the purging pipe is connected with the middle end of the flow guide pipe.

[0014] Preferably, the carbon dioxide injection equipment, the branch pipe is provided with a check valve.

[0015] The carbon dioxide injection equipment has the advantages that:

[0016] (1) When it is necessary to inject carbon dioxide into the mixing tank, the staff inputs the numerical value of the carbon dioxide to be injected into the PLC control unit, and the PLC control unit controls the gas pressure unit to start the pressurization work. When the gas pressure unit is pressurized to a certain level, the gas pressure unit is automatically closed. At the same time as the gas pressure unit is closed, the liquid conveying unit is automatically opened. After the liquid conveying unit is opened, the carbon dioxide in the carbon dioxide storage tank is transported to the injection unit, and finally the carbon dioxide is injected into the mixing tank through the injection unit. This design improves the degree of automation, and because the staff can input the injection amount into the PLC control unit in advance, the mixing quality in the mixing tank is further guaranteed.

[0017] (2) Since the PLC control unit is electrically connected to the weighing platform, gas pressurizing unit, liquid conveying unit, pressure sensor and temperature sensor respectively, the pressure, temperature and injection volume can be monitored at all times. Due to the connection between the carbon dioxide storage tank and the weighing platform, when the carbon dioxide in the carbon dioxide storage tank is conveyed to the injection unit through the liquid conveying unit, the load-bearing platform will feed back the reduced weight to the PLC control unit, and the liquid conveying unit will feed back the delivered flow rate to the PLC control unit. The pressure sensor is electrically used to feed back the monitored pressure to the PLC control unit. After receiving the pressure value, the PLC control unit controls the switch operation of the gas pressurizing unit. This design further improves the degree of automation and avoids the staff from monitoring it at all times, reducing the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural diagram of one embodiment of the present invention.

[0019] Among them: it includes: a carbon dioxide storage tank 11, a gas pressurizing unit 12, a liquid conveying unit 13, a PLC control unit 14, an injection unit 15, a weighing platform 16, a branch pipe 17, a pressure sensor 18, a temperature sensor 19, a gas solenoid valve 20, a first safety valve 21, a first pipe body 22, a first pressure gauge 23, a liquid solenoid valve 24, a second safety valve 25, a second pipe body 26, a second pressure gauge 27, a guide pipe 28, a nozzle 29, a first signal terminal 30, a second signal terminal 31, a third signal terminal 32, a fourth signal terminal 33, a fifth signal terminal 334, a one-way valve 34, an air purge unit 35, a purge signal terminal 36, an air compressor 37, a purge pipe 38, a purge solenoid valve 39, a stop valve 40, and a one-way valve 41. DETAILED DESCRIPTION

[0020] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, are for the purpose of explanation only and are not to be construed as limiting the present application.

[0021] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0022] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0023] In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0024] As Figure 1As shown, a kind of carbon dioxide injection equipment, including carbon dioxide storage tank 11, gaseous pressurizing unit 12, liquid conveying unit 13, PLC control unit 14 and injection unit 15, carbon dioxide storage tank 11 is equipped with weighing platform 16, one end of gaseous pressurizing unit 12 and liquid conveying unit 13 are connected with carbon dioxide storage tank 11, the other end of gaseous pressurizing unit 12 is provided with branch pipe 17, gaseous pressurizing unit 12 is communicated with liquid conveying unit 13 by branch pipe 17, the other end of liquid conveying unit 13 is connected with injection unit 15, and injection unit 15 is provided with pressure sensor 18 and temperature sensor 19;PLC control unit 14 is electrically connected with weighing platform 16, gaseous pressurizing unit 12, liquid conveying unit 13, pressure sensor 18 and temperature sensor 19 respectively;When carbon dioxide needs to be injected into the stirring tank, staff inputs the value of carbon dioxide to be injected into PLC control unit 14, and the gaseous pressurizing unit 12 is controlled to start pressurizing work by PLC control unit 14, when the gaseous pressurizing unit 12 is pressurized to a certain degree, the gaseous pressurizing unit 12 is automatically closed, and the liquid conveying unit 13 is automatically opened at the same time that the gaseous pressurizing unit 12 is closed, carbon dioxide in carbon dioxide storage tank 11 is conveyed to injection unit 15 by the opening of liquid conveying unit 13, and finally the received carbon dioxide is injected into the stirring tank by injection unit 15, so as to improve the degree of automation, and since the staff can input the injection amount to PLC control unit 14 in advance, the mixing quality in the stirring tank is further ensured.

[0025] In the carbon dioxide injection equipment in the embodiment, the PLC control unit 14 is electrically connected with the weighing platform 16, the gaseous pressurizing unit 12, the liquid conveying unit 13, the pressure sensor 18 and the temperature sensor 19, so that the pressure, the temperature and the injection amount can be monitored at any time, and since the carbon dioxide storage tank 11 is connected with the weighing platform 16, when the carbon dioxide in the carbon dioxide storage tank 11 is conveyed to the injection unit 15 by the liquid conveying unit 13, the weighing platform will feed back the reduced weight to the PLC control unit 14, the liquid conveying unit 13 will feed back the conveyed flow to the PLC control unit 14, the pressure sensor 18 is electrically used for feeding back the monitored pressure to the PLC control unit 14, and after receiving the pressure value, the PLC control unit 14 controls the on-off work of the gaseous pressurizing unit 12, so as to further improve the degree of automation and avoid monitoring by the staff at any time, thereby reducing the workload of the staff.

[0026] It is worth noting that when the injection unit 15 reaches the injection amount, in order to prevent the liquid CO2 from solidifying into dry ice, the entire pipeline is blocked, therefore, the gaseous pressurizing unit 12 is opened again to perform the blowing process.

[0027] The carbon dioxide injection equipment in the embodiment, wherein the gaseous pressurizing unit 12 comprises a gas solenoid valve 20, a first safety valve 21 and a first pipe body 22, the first pipe body 22 is sequentially connected with the gas solenoid valve 20 and the first safety valve 21, one end of the first pipe body 22 is connected with the carbon dioxide storage tank 11, the other end of the first pipe body 22 is connected with the inlet of the branch pipe 17, the outlet of the branch pipe 17 is connected with the injection unit 15; the gas solenoid valve 20 is connected with the branch pipe 17 through the first pipe body 22, and then the branch pipe 17 is connected with the injection unit 15, so that the gas solenoid valve 20 pressurizes the injection unit 15, and the safety degree in the pressurizing process is further improved due to the second safety valve 25.

[0028] The carbon dioxide injection equipment in some embodiments, wherein the gaseous pressurizing unit 12 further comprises a first pressure gauge 23, and the first pipe body 22 is communicated with the first pressure gauge 23; the first pressure gauge 23 can monitor the pressure in the first pipe body 22 at any time.

[0029] The carbon dioxide injection equipment in the embodiment, wherein the liquid delivery unit 13 comprises a liquid solenoid valve 24, a second safety valve 25, a second pipe body 26 and a second pressure gauge 27, the second pipe body 26 is sequentially connected with the liquid solenoid valve 24, the second safety valve 25 and the second pressure gauge 27, one end of the second pipe body 26 is connected with the carbon dioxide storage tank 11, and the other end of the second pipe body 26 is connected with the injection unit 15; the design realizes the purpose that the second pipe body 26 delivers the carbon dioxide in the carbon dioxide storage tank 11 to the injection unit 15.

[0030] The carbon dioxide injection equipment in the embodiment, wherein the PLC control unit 14 is respectively provided with a first signal end 30, a second signal end 31, a third signal end 32, a fourth signal end 33 and a fifth signal end 334, the first signal end 30 is electrically connected with the gas solenoid valve 20, the second signal end 31 is electrically connected with the liquid solenoid valve 24, the third signal end 32 is electrically connected with the pressure sensor 18, the fourth signal end 33 is electrically connected with the weighing table 16, and the fifth signal end 334 is electrically connected with the temperature sensor 19; the PLC control unit 14 sends the opening or closing instruction to the gas solenoid valve 20 through the first signal end 30, sends the opening or closing instruction to the liquid solenoid valve 24 through the second signal end 31, receives the pressure value sent by the pressure sensor 18 through the third signal end 32, receives the weight value sent by the weighing table 16 through the fourth signal end 33, and receives the temperature value sent by the temperature sensor 19 through the fifth signal end 334, so as to achieve the purpose of monitoring at any time.

[0031] The carbon dioxide injection equipment in the embodiment, wherein the PLC control unit 14 is further provided with a purging signal end 36, and the PLC control unit is electrically connected with the air purging unit 35 through the purging signal end 36.

[0032] It is worth mentioning that the air purging unit 35 includes an air compressor 37, a purging pipe 38, a purging electromagnetic valve 39, a stop valve 40 and a one-way valve 41, the purging pipe 38 is sequentially connected with the purging electromagnetic valve 39, the stop valve 40 and the one-way valve 41, one end of the purging pipe 38 is connected with the air compressor 37, and the other end of the purging pipe 38 is connected with the injection unit 15; the purging signal end 36 is electrically connected with the purging electromagnetic valve 39; when the liquid carbon dioxide of the second pipe body 26 is solidified into dry ice to block, so that the second pipe body 26 cannot deliver the carbon dioxide gas to the injection unit, the compressed air can be delivered to the inside of the injection unit and the second pipe body 26 through the purging pipe 38 to perform purging work after the air is compressed by the air compressor 37, and the purging signal end 36 of the PLC control unit 14 can control the purging electromagnetic valve 39, and the compressed air is cut off by the purging electromagnetic valve 39 after the delivery of the compressed air is completed.

[0033] The carbon dioxide injection equipment in the embodiment, wherein the injection unit 15 includes a flow guide pipe 28 and a nozzle 29, the flow guide pipe 28 is sequentially communicated with the pressure sensor 18 and the temperature sensor 19, one end of the flow guide pipe 28 is connected with the second pipe body 26, and the other end of the flow guide pipe 28 is connected with the nozzle 29; such a design realizes the purpose of injecting the carbon dioxide into the stirring tank for stirring and mixing; it is to be explained that the purging pipe 38 is connected with the middle end of the flow guide pipe 28.

[0034] The carbon dioxide injection equipment in some embodiments, wherein the branch pipe 17 is provided with a one-way valve 34; the phenomenon of carbon dioxide backflow is avoided.

[0035] The technical principle of the utility model is described above in combination with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be explained as the limitation of the protection scope of the utility model in any way. Based on the explanation herein, the person skilled in the art can think of other specific embodiments of the utility model without creative labor, and these embodiments will fall into the protection scope of the utility model.

Claims

1. A carbon dioxide injection device, characterized in that: It includes a carbon dioxide storage tank, a gas pressurizing unit, a liquid delivery unit, an air purge unit, a PLC control unit, and an injection unit. The carbon dioxide storage tank is provided with a weighing platform. One end of the gas pressurizing unit and the liquid delivery unit are both connected to the carbon dioxide storage tank. The other end of the gas pressurizing unit is provided with a branch pipe. The gas pressurizing unit is connected to the liquid delivery unit through the branch pipe. The other end of the liquid delivery unit is connected to the air purge unit and the injection unit in sequence. The injection unit is provided with a pressure sensor and a temperature sensor. The PLC control unit is electrically connected to the weighing platform, the gas pressurizing unit, the liquid delivery unit, the pressure sensor, and the temperature sensor respectively.

2. The carbon dioxide injection equipment according to claim 1, characterized in that: The gaseous pressurization unit includes a gas solenoid valve, a first safety valve and a first tube body, the first tube body is connected to the gas solenoid valve and the first safety valve in sequence, one end of the first tube body is connected to the carbon dioxide storage tank, the other end of the first tube body is connected to the inlet of the branch pipe, and the outlet of the branch pipe is connected to the injection unit.

3. The carbon dioxide injection equipment according to claim 2, characterized in that: The gas pressurizing unit further includes a first pressure gauge, and the first tube is connected to the first pressure gauge.

4. The carbon dioxide injection equipment according to claim 2, characterized in that: The liquid delivery unit includes a liquid solenoid valve, a second safety valve, a second tube body and a second pressure gauge. The second tube body is connected to the liquid solenoid valve, the second safety valve and the second pressure gauge in sequence. One end of the second tube body is connected to the carbon dioxide storage tank, and the other end of the second tube body is connected to the injection unit.

5. The carbon dioxide injection equipment according to claim 4, characterized in that: The PLC control unit is respectively provided with a first signal terminal, a second signal terminal, a third signal terminal, a fourth signal terminal and a fifth signal terminal. The first signal terminal is electrically connected to the gas solenoid valve, the second signal terminal is electrically connected to the liquid solenoid valve, the third signal terminal is electrically connected to the pressure sensor, the fourth signal terminal is electrically connected to the weighing platform, and the fifth signal terminal is electrically connected to the temperature sensor.

6. The carbon dioxide injection equipment according to claim 5, characterized in that: It also includes an air purge unit, and the PLC control unit is further provided with a purge signal terminal, and the PLC control unit is electrically connected to the air purge unit through the purge signal terminal.

7. The carbon dioxide injection equipment according to claim 6, characterized in that: The air purge unit includes an air compressor, a purge pipe, a purge solenoid valve, a shut-off valve, and a one-way valve. The purge pipe is connected to the purge solenoid valve, the shut-off valve, and the one-way valve in sequence. One end of the purge pipe is connected to the air compressor, and the other end of the purge pipe is connected to the injection unit. The purge signal terminal is electrically connected to the purge solenoid valve.

8. The carbon dioxide injection equipment according to claim 7, characterized in that: The injection unit includes a guide tube and a nozzle. The guide tube is connected to the pressure sensor and the temperature sensor in sequence. One end of the guide tube is connected to the second tube body, and the other end of the guide tube is connected to the nozzle; the other end of the purge tube is connected to the middle end of the guide tube.

9. The carbon dioxide injection equipment according to claim 1 or 2, characterized in that: The branch pipe is provided with a one-way valve.

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