High-temperature and high-pressure heating medium supplementing device

Abstract

The utility model relates to a high-temperature and high-pressure heating medium supplementing device which is used for supplementing a heating medium to a heating medium furnace I. The high-temperature and high-pressure heating medium supplementing device comprises a steam generator, a heating medium furnace II and a PLC (Programmable Logic Controller), a pressure gauge I, a thermometer I and an electronic liquid level meter I are arranged on the heating medium furnace I; a thermometer II is arranged on the heating medium furnace II; a steam inlet valve is arranged on a pipeline between the steam generator and the heating medium furnace II; the heating medium furnace II is sequentially connected with a valve I, a heating medium filling pump, a heating medium filling outlet pressure gauge, a pressure gauge III, a heating medium filling valve and a heating medium furnace I through pipelines; the PLC is electrically connected with the steam inlet valve, the heating medium filling valve, the electronic liquid level meter I, the pressure gauge I, the temperature gauge I, the temperature gauge II, the pressure gauge III, the heating medium filling pump and the heating medium filling outlet pressure gauge. According to the utility model, the filling speed of the heating medium is controlled through the PLC, so that the process of supplementing the heating medium is realized, the complexity of manual operation is avoided, and the stability and the accuracy of operation are ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of textile processing equipment and relates to a high-temperature and high-pressure heat medium supplementing device. Background Art

[0002] The main component of the gas phase heat medium is a mixture of biphenyl and biphenyl ether. The operating temperature of the heat medium furnace I is above 280°C. Under high temperature conditions, the heat medium molecules will decompose to produce a certain amount of small molecular gas. The presence of the gas will affect the stability of the heat medium system. In order to improve the stability of the heat medium system, it is necessary to exhaust the gas regularly. During the exhaust process, as the small gas molecules are discharged from the heat medium system, the heat medium in the heat medium furnace I is quickly vaporized, causing the liquid level of the heat medium furnace I to decrease. Therefore, the heat medium in the heat medium furnace I must be supplemented at regular intervals.

[0003] In the prior art, heat medium is generally added manually. For example, CN 212870744 U provides a biphenyl furnace that is easy to add materials. The heat medium in the preparation furnace is added to the furnace by manual operation. Specifically, the workers in the prior art operate the device, such as Figure 1 As shown, when the electronic liquid level gauge I4 shows that the liquid level of the heat medium furnace I is lower than 70%, the steam inlet valve 19 is manually opened to preheat the heat medium furnace II. After the worker knows that the heat medium furnace II is preheated to 80-90°C according to the thermometer II 9, the heat medium filling pump 17 is started. When the readings displayed by the heat medium filling outlet pressure gauge 18 and the pressure gauge III 6 are greater than the pressure gauge I1, the heat medium filling valve 7 is manually opened, and the filling speed of the heat medium is manually controlled so that the temperature displayed by the thermometer I2 does not fluctuate by more than 0.5°C. When the electronic liquid level gauge I4 shows that the liquid level of the heat medium furnace I is between 75% and 85%, the heat medium filling valve 7, the heat medium filling pump 17 and the steam inlet valve 19 are then closed. The existing technology is cumbersome to operate during use. In the actual production process, the heat medium furnace I is located on the second floor, and the heat medium furnace II is located on the first floor. It often requires 2 to 3 people to participate at the same time to realize the heat medium replenishment process. In addition, when adjusting the heat medium filling speed, high requirements are placed on people, and the valve opening must be reasonably controlled.

[0004] Therefore, it is of great significance to study a high-temperature and high-pressure heat medium replenishing device to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problems existing in the prior art and provide a high-temperature and high-pressure heat medium replenishing device.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A high-temperature and high-pressure heat medium supplement device, used to supplement heat medium to a heat medium furnace I, comprising a steam generator, a heat medium furnace II and a PLC controller;

[0008] The heat medium furnace I is provided with a pressure gauge I, a temperature gauge I and an electronic liquid level gauge I; the heat medium furnace II is provided with a temperature gauge II;

[0009] A coil is provided in the heat medium furnace II; the steam generator is connected to the coil in the heat medium furnace II through a pipeline, and the steam generator is used to supply steam to the heat medium furnace II for preheating; a steam inlet valve is provided on the pipeline between the steam generator and the heat medium furnace II, and the steam inlet valve is used to control the entry of steam;

[0010] The heat medium furnace II is connected with the valve I, the heat medium filling pump, the heat medium filling outlet pressure gauge, the pressure gauge III, the heat medium filling valve and the heat medium furnace I in sequence through the pipeline; the valve I is normally open;

[0011] The steam inlet valve is solenoid valve I, and the heat medium filling valve is solenoid valve II;

[0012] The PLC controller is electrically connected to the solenoid valve I, the solenoid valve II, the electronic liquid level gauge I, the pressure gauge I, the temperature gauge I, the temperature gauge II, the pressure gauge III, the heat medium filling pump and the heat medium filling outlet pressure gauge respectively;

[0013] The PLC controller is used to receive information sent by the electronic liquid level gauge I, pressure gauge I, thermometer I, thermometer II, pressure gauge III and heat medium filling outlet pressure gauge; when the electronic liquid level gauge I shows that the liquid level of the heat medium furnace I is lower than 70%, the PLC controller controls the steam inlet valve to open; when the temperature displayed by the thermometer II is 80-90°C, the PLC controller turns on the heat medium filling pump; when the readings displayed by the heat medium filling outlet pressure gauge and pressure gauge III are both greater than those displayed by the pressure gauge I, the PLC controller opens the heat medium filling valve and controls the filling speed of the heat medium at the same time so that the fluctuation range of the temperature displayed by the thermometer I does not exceed 0.5°C; when the electronic liquid level gauge I shows that the liquid level of the heat medium furnace I is between 75% and 85%, the PLC controller closes the heat medium filling valve, the heat medium filling pump and the steam inlet valve.

[0014] As the preferred technical solution:

[0015] In the high-temperature and high-pressure heat medium replenishing device as described above, a filling hole and an electronic liquid level gauge II are provided on the heat medium furnace II. When the electronic liquid level gauge II shows that the heat medium in the heat medium furnace II is too low, heat medium is manually added to the heat medium furnace II through the filling hole.

[0016] The high-temperature and high-pressure heat medium replenishing device as described above also includes a loop; the heat medium furnace I is connected to the heat medium furnace II through the loop, and a low discharge valve is provided on the loop. The loop is used to discharge the heat medium in the heat medium furnace I into the heat medium furnace II when the heat medium furnace I is repaired.

[0017] A high-temperature and high-pressure heat medium replenishing device as described above also includes an overflow orifice plate; a connection point A is provided between the heat medium filling outlet pressure gauge and the pressure gauge III, and the heat medium furnace II is connected to the connection point A through the overflow orifice plate. The overflow orifice plate is used to prevent high pressure from damaging the pipeline, and the heat medium can be depressurized from the overflow plate hole and return to the heat medium furnace II, thereby achieving the purpose of protecting the pipeline.

[0018] A high-temperature and high-pressure heat medium replenishing device as described above also includes a heat medium filling pump outlet bypass valve; the heat medium filling pump outlet bypass valve is connected in parallel with the overflow orifice plate; when the overflow orifice plate is damaged, the heat medium filling pump outlet bypass valve can be manually opened slightly to release pressure; after the heat medium filling is completed, the excess heat medium in the pipeline will flow back, and if the reflux is not smooth, the heat medium filling pump outlet bypass valve can be opened to flow back to the heat medium furnace II.

[0019] The high-temperature and high-pressure heat medium replenishing device as described above also includes heat insulation cotton I and heat insulation cotton II; the heat insulation cotton I is wrapped around the outer surface of the heat medium furnace I, and the heat insulation cotton II is wrapped around the outer surface of the heat medium furnace II.

[0020] The high-temperature and high-pressure heat medium replenishing device as described above also includes a valve II, which is connected in parallel with the valve I. The valve II is normally closed and is a spare valve. When the valve I is damaged, the valve II is opened.

[0021] The high-temperature and high-pressure heat medium replenishing device as described above also includes a filter; the filter is located between the valve I and the heat medium filling pump, and is used to filter the heat medium to ensure that there are no impurities in the heat medium coming out of the filter.

[0022] A high-temperature and high-pressure heat medium replenishing device as described above also includes valve III, valve IV, valve V, valve VI, valve VII and valve VIII; valve III is arranged between the heat medium filling valve and the heat medium furnace I; valve IV is arranged between the pressure gauge III and the heat medium filling valve; valve III and valve IV are connected in series and then connected in parallel with valve V; valve III and valve IV are normally open, and valve V is normally closed. When the heat medium filling valve is damaged, valve III and valve IV are closed, and manual adjustment is performed through valve V; the steam inlet valve is arranged between valve VI and valve VII, valve VI, the steam inlet valve and valve VII are connected in series and then connected in parallel with valve VIII; valve VI and valve VII are normally open, and valve VIII is normally closed. When the steam inlet valve is damaged, valve VI and valve VII are closed, and valve VIII is opened.

[0023] Beneficial effects:

[0024] The utility model discloses a high-temperature and high-pressure heat medium replenishing device, which realizes the heat medium replenishing process through a PLC controller and can control the filling speed of the heat medium, thus avoiding the tediousness of manual operation and ensuring the stability and accuracy of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of a heat medium replenishing device in the prior art;

[0026] Figure 2 This is a schematic diagram of a high-temperature and high-pressure heat medium replenishing device of the utility model;

[0027] Among them, 1-pressure gauge I, 2-temperature gauge I, 3-insulation cotton I, 4-electronic liquid level gauge I, 5-low discharge valve, 6-pressure gauge III, 7-heat medium filling valve, 8-heat medium filling pump outlet bypass valve, 9-temperature gauge II, 10-overflow orifice plate, 11-filling hole, 12-electronic liquid level gauge II, 13-insulation cotton II, 14-valve I, 15-valve II, 16-filter, 17-heat medium filling pump, 18-heat medium filling outlet pressure gauge, 19-steam inlet valve, 21-valve III, 22-valve IV, 23-valve V, 25-valve VI, 26-valve VII, 27-valve VIII. DETAILED DESCRIPTION

[0028] The present invention is further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the claims attached to this application.

[0029] A high-temperature and high-pressure heat medium replenishing device is used to replenish heat medium to a heat medium furnace I, such as Figure 2 As shown, it includes a steam generator, a heat medium furnace II, a PLC controller, a loop, an overflow orifice plate 10, a heat medium filling pump outlet bypass valve 8, a heat insulation cotton I 3, a heat insulation cotton II 13, a valve II 15, a filter 16, a valve III 21, a valve IV 22, a valve V 23 and a valve VIII 27;

[0030] The heat medium furnace I is provided with a pressure gauge I1, a temperature gauge I2 and an electronic liquid level gauge I4; the heat medium furnace II is provided with a temperature gauge II9, a filling hole 11 and an electronic liquid level gauge II 12;

[0031] A coil is provided in the heat medium furnace II; the steam generator is connected to the coil in the heat medium furnace II through a pipeline; a valve VI 25, a steam inlet valve 19 and a valve VII 26 are provided in sequence on the pipeline between the steam generator and the heat medium furnace II; the valve VI 25, the steam inlet valve 19 and the valve VII 26 are connected in series and then connected in parallel with the valve VIII 27; the valve VI 25 and the valve VII 26 are normally open, and the valve VIII 27 is normally closed;

[0032] The heat medium furnace II is connected to the valve I14, the filter 16, the heat medium filling pump 17, the heat medium filling outlet pressure gauge 18, the pressure gauge III 6, the valve IV 22, the heat medium filling valve 7, the valve III 21 and the heat medium furnace I in sequence through pipelines; the valve I14 is normally open; the valve II 15 is connected in parallel with the valve I14, and the valve II 15 is normally closed; the valve III 21 and the valve IV 22 are connected in series and then connected in parallel with the valve V 23; the valve III 21 and the valve IV 22 are normally open, and the valve V 23 is normally closed;

[0033] There is a connection point A between the heat medium filling outlet pressure gauge 18 and the pressure gauge III 6, and the heat medium furnace II is connected to the connection point A through the overflow orifice plate 10; the heat medium filling pump outlet bypass valve 8 is connected in parallel with the overflow orifice plate 10;

[0034] The heat medium furnace I is connected to the heat medium furnace II through a loop, and a low discharge valve 5 is provided on the loop;

[0035] The heat insulation cotton I3 is wrapped around the outer surface of the heat medium furnace I, and the heat insulation cotton II 13 is wrapped around the outer surface of the heat medium furnace II;

[0036] The steam inlet valve 19 is a solenoid valve I, and the heat medium filling valve 7 is a solenoid valve II;

[0037] The PLC controller is electrically connected to the solenoid valve I, the solenoid valve II, the electronic level gauge I 4, the pressure gauge I1, the temperature gauge I 2, the temperature gauge II 9, the pressure gauge III 6, the heat medium filling pump 17 and the heat medium filling outlet pressure gauge 18 respectively;

[0038] The PLC controller is used to receive information sent by the electronic liquid level gauge I 4, the pressure gauge I1, the temperature gauge I 2, the temperature gauge II 9, the pressure gauge III 6 and the heat medium filling outlet pressure gauge 18; when the electronic liquid level gauge I 4 shows that the liquid level of the heat medium furnace I is lower than 70%, the PLC controller controls the steam inlet valve 19 to open; when the electronic liquid level gauge II shows that the heat medium in the heat medium furnace II is too low, the heat medium is manually filled into the heat medium furnace II through the filling hole; when the temperature gauge II 9 shows that the temperature is 80-90°C, the PLC controller turns on the heat medium filling pump 17; when the readings displayed by the heat medium filling outlet pressure gauge 18 and the pressure gauge III 6 are both greater than the pressure gauge I1, the PLC controller opens the heat medium filling valve 7 and controls the filling speed of the heat medium so that the fluctuation range of the temperature displayed by the temperature gauge I 2 does not exceed 0.5°C; when the electronic liquid level gauge I When the liquid level of the heat medium furnace 1 is between 75% and 85%, the PLC controller closes the heat medium filling valve 7, the heat medium filling pump 17 and the steam inlet valve 19.

Claims

1. A high-temperature and high-pressure heat medium replenishing device, used to replenish heat medium to a heat medium furnace I, characterized in that: Including steam generator, heat medium furnace II and PLC controller; The heat medium furnace I is provided with a pressure gauge I (1), a temperature gauge I (2) and an electronic liquid level gauge I (4); the heat medium furnace II is provided with a temperature gauge II (9); A coil is provided in the heat medium furnace II; the steam generator is connected to the coil in the heat medium furnace II through a pipeline; a steam inlet valve (19) is provided on the pipeline between the steam generator and the heat medium furnace II; The heat medium furnace II is connected to the valve I (14), the heat medium filling pump (17), the heat medium filling outlet pressure gauge (18), the pressure gauge III (6), the heat medium filling valve (7) and the heat medium furnace I in sequence through pipelines; the valve I (14) is normally open; The steam inlet valve (19) is a solenoid valve I, and the heat medium filling valve (7) is a solenoid valve II; The PLC controller is electrically connected to the solenoid valve I, the solenoid valve II, the electronic liquid level gauge I (4), the pressure gauge I (1), the temperature gauge I (2), the temperature gauge II (9), the pressure gauge III (6), the heat medium filling pump (17) and the heat medium filling outlet pressure gauge (18) respectively; The PLC controller is used to receive information sent by the electronic liquid level gauge I (4), the pressure gauge I (1), the temperature gauge I (2), the temperature gauge II (9), the pressure gauge III (6) and the heat medium filling outlet pressure gauge (18); when the electronic liquid level gauge I (4) shows that the liquid level of the heat medium furnace I is lower than 70%, the PLC controller controls the steam inlet valve (19) to open; when the temperature gauge II (9) shows that the temperature is 80-90°C, the PLC controller turns on the heat medium filling pump (17); when the heat medium When the readings displayed by the filling outlet pressure gauge (18) and the pressure gauge III (6) are both greater than those displayed by the pressure gauge I (1), the PLC controller opens the heat medium filling valve (7) and controls the filling speed of the heat medium so that the fluctuation range of the temperature displayed by the temperature gauge I (2) does not exceed 0.5°C; when the electronic liquid level gauge I (4) shows that the liquid level of the heat medium furnace I is between 75% and 85%, the PLC controller closes the heat medium filling valve (7), the heat medium filling pump (17) and the steam inlet valve (19).

2. A high-temperature and high-pressure heat medium replenishing device according to claim 1, characterized in that: The heat medium furnace II is provided with a filling hole (11) and an electronic liquid level meter II (12).

3. A high-temperature and high-pressure heat medium replenishing device according to claim 1, characterized in that: It also includes a circuit; the heat medium furnace I is connected to the heat medium furnace II through the circuit, and a low discharge valve (5) is provided on the circuit.

4. A high-temperature and high-pressure heat medium replenishing device according to claim 1, characterized in that: It also includes an overflow orifice plate (10); a connection point A is provided between the heat medium filling outlet pressure gauge (18) and the pressure gauge III (6), and the heat medium furnace II is connected to the connection point A through the overflow orifice plate (10).

5. A high-temperature and high-pressure heat medium replenishing device according to claim 4, characterized in that: It also includes a heat medium filling pump outlet bypass valve (8); the heat medium filling pump outlet bypass valve (8) is connected in parallel with the overflow orifice plate (10).

6. A high-temperature and high-pressure heat medium replenishing device according to claim 1, characterized in that: It also includes thermal insulation cotton I (3) and thermal insulation cotton II (13); the thermal insulation cotton I (3) is wrapped around the outer surface of the heat medium furnace I, and the thermal insulation cotton II (13) is wrapped around the outer surface of the heat medium furnace II.

7. A high-temperature and high-pressure heat medium replenishing device according to claim 1, characterized in that: The invention also comprises a valve II (15), which is connected in parallel with the valve I (14), and the valve II (15) is normally closed.

8. A high-temperature and high-pressure heat medium replenishing device according to claim 1, characterized in that: Also comprising a filter (16); The filter (16) is located between the valve I (14) and the heat medium filling pump (17).

9. A high-temperature and high-pressure heat medium replenishing device according to claim 1, characterized in that: The invention also comprises valve III (21), valve IV (22), valve V (23), valve VI (25), valve VII (26) and valve VIII (27); valve III (21) is arranged between the heat medium filling valve (7) and the heat medium furnace I; valve IV (22) is arranged between the pressure gauge III (6) and the heat medium filling valve (7); valve III (21) and valve IV (22) are connected in series and then connected in parallel with valve V (23); valve III (21) and valve IV (22) are normally open, and valve V (23) is normally closed; steam inlet valve (19) is arranged between valve VI (25) and valve VII (26); valve VI (25), steam inlet valve (19) and valve VII (26) are connected in series and then connected in parallel with valve VIII (27); valve VI (25) and valve VII (26) are normally open, and valve VIII (27) is normally closed.

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