A retractable analytical electrode mounting bracket with a flushing port

Abstract

The present invention discloses a retractable and pluggable analytical electrode mounting bracket with a flushing port, comprising an electrode mounting seat, a retractable probe rod, a process flange, an isolation ball valve, a mounting tube with a flushing interface, a locking ring, a probe rod seal, and a probe rod seal locking ring. The electrode mounting seat is connected to the retractable probe rod, and the two ends of the isolation ball valve are respectively connected to the process flange and the mounting tube with a flushing interface, and the mounting tube with a flushing interface is connected to the probe rod seal through a locking ring. The probe rod seal is locked again through the probe rod seal locking ring to seal the gap with the retractable probe rod, and two sealing rings are arranged inside the locking ring to seal the process medium to prevent leakage. The present invention can realize the free adjustment of the probe rod insertion depth, and improves the convenience of maintenance and replacement of direct-insertion measurement and analysis electrodes in large process pipelines (tanks); after the flushing port is connected to the flushing water pipe, the sensor electrode can be flushed online, which prolongs the electrode life and greatly reduces the labor intensity of instrument maintenance personnel.

Description

Technical Field

[0001] The invention belongs to the technical field of detection instruments, and in particular relates to a telescopically pluggable analytical electrode mounting bracket with a flushing port. Background Art

[0002] PH electrodes, conductivity electrodes and dissolved oxygen electrodes, as electrochemical analysis instruments, are widely used in petroleum, chemical, pharmaceutical, food and various other laboratories or production, from routine to professional measurements. The above electrodes generally use direct insertion measurement to measure the relevant media in large process pipelines (tanks).

[0003] The existing analytical electrode mounting bracket often has the following disadvantages during installation: (1) the insertion depth of the electrode cannot be freely adjusted; (2) when the electrode is replaced, the sealing of the measuring medium cannot be effectively achieved, which will cause leakage of the measuring medium, and the process of replacing the electrode is cumbersome; (3) when the measuring medium contains a lot of grease, organic matter, metal particles and impurities, the electrode surface may be quickly attached by grease and impurities, which greatly affects the measurement results, and even worse, it makes it impossible to measure. Therefore, the electrode needs to be cleaned regularly. The existing cleaning process is cumbersome and cannot be cleaned online. Therefore, it is necessary to improve the existing process and propose a retractable and pluggable analytical electrode mounting bracket with a flushing port. Summary of the invention

[0004] In view of the above-mentioned problems, the present invention provides a retractable and pluggable analytical electrode mounting bracket with a flushing port, which overcomes the shortcomings of current electrode mounting brackets, improves the convenience of inspection and replacement of direct-insertion measurement and analysis electrodes in large process pipelines (tanks), and can realize functions such as online flushing of electrodes, thereby reducing maintenance costs.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A telescopic and pluggable analytical electrode mounting bracket with a flushing port comprises an electrode mounting seat, a telescopic probe rod, a process flange, an isolation ball valve, a mounting tube with a flushing interface, a locking ring, a probe rod seal and a probe rod seal locking ring. The electrode mounting seat is connected to the telescopic probe rod through an external thread, and both ends of the isolation ball valve are respectively connected to the process flange and the mounting tube with a flushing interface through internal threads. The mounting tube with a flushing interface is connected to the probe rod seal through a locking ring. The probe rod seal is again locked and sealed with a gap between the probe rod and the telescopic probe rod through a probe rod seal locking ring. The telescopic probe rod is sequentially arranged through the process flange, the isolation ball valve, the mounting tube with a flushing interface, the locking ring, the probe rod seal and the probe rod seal locking ring; two sealing rings are arranged inside the locking ring to seal the process medium to prevent leakage.

[0006] Furthermore, a flushing interface is provided on the installation tube with a flushing interface, and the flushing interface can be connected to external flushing water to flush the electrode.

[0007] Furthermore, the electrode mounting seat is connected to the sensor electrode via an internal thread, a protective ball cage is made at one end of the electrode mounting seat for protecting the sensor electrode, and the other side is connected to the telescopic probe rod via an external thread.

[0008] Furthermore, a cable locking cap is provided at one end of the telescopic probe away from the electrode mounting seat, which is used to lock the sensor electrode cable and connect the tail of the telescopic probe.

[0009] Furthermore, a probe rod anti-skid sleeve is provided at one end of the retractable probe rod close to the cable locking cap to prevent slipping and facilitate the insertion and removal of the retractable probe rod. The probe rod anti-skid sleeve is made of rubber.

[0010] Furthermore, the process flange is made of stainless steel and has a welded external threaded joint for connecting to an isolation ball valve; the isolation ball valve is made of stainless steel and has internal threads on both sides for connecting to the process flange and an installation pipe with a flushing interface.

[0011] Furthermore, the installation tube with flushing interface is made of stainless steel and has external threads on both sides; the flushing interface is provided with internal threads for installing a plug or a stainless steel ferrule joint to facilitate the connection of a flushing water pipe.

[0012] Furthermore, the locking ring is made of stainless steel, with an inner concave base on one side for locking the probe rod seal; the probe rod seal is made of stainless steel, with an outer thread on one side for connecting the probe rod seal locking ring, and an outer convex base on the other side for connecting the locking ring.

[0013] Furthermore, the locking ring of the probe rod seal is made of plastic material, one side of which is an internal threaded opening for connecting the probe rod seal, and the other side is open and has a support platform to compress the seal for re-sealing.

[0014] Through the technical solution of the present invention, the insertion depth of the probe rod can be freely adjusted. When the electrode needs to be replaced, the probe rod can be pulled out until the electrode mounting seat is located in the mounting tube with the flushing interface. After closing the isolation ball valve, the retractable probe rod can be pulled out after unlocking through the locking ring, and the sensor electrode can be replaced or repaired, thereby improving the convenience of inspection and replacement of direct-insertion measurement and analysis electrodes in large process pipelines (tanks); after the flushing port is connected to the flushing water pipe, the sensor electrode can be flushed online, which prolongs the life of the electrode and greatly reduces the labor intensity of instrument maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of the analytical electrode mounting bracket with a retractable and pluggable flushing port of the present invention; In the figure: 1. Electrode mounting seat; 2. Retractable probe rod; 3. Process flange; 4. Isolation ball valve; 5. Mounting tube with flushing interface; 6. Flushing interface; 7. Locking ring; 8. Probe rod seal; 9. Probe rod seal locking ring; 10. Probe rod anti-slip sleeve; 11. Cable locking cap. DETAILED DESCRIPTION

[0016] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0017] like Figure 1 As shown, the present invention is a telescopic and pluggable analytical electrode mounting bracket with a flushing port, comprising an electrode mounting seat 1, a telescopic probe rod 2, a process flange 3, an isolation ball valve 4, a mounting tube with a flushing interface 5, a flushing interface 6, a locking ring 7, a probe rod seal 8, a probe rod seal locking ring 9, a probe rod anti-slip sleeve 10, and a cable locking cap 11. The electrode mounting seat 1 is connected to the telescopic probe 2 through an external thread, and the electrode mounting seat 1 is connected to the sensor electrode through an internal thread. The process flange 3 is used to connect the entire bracket to the process pipeline (tank), and can be connected and fixed by bolts. The isolation ball valve 4 is connected to the process flange 3 and the installation pipe 5 with a flushing interface through an internal thread. The flushing interface 6 can be connected to external flushing water to flush the sensor electrode. The installation pipe 5 with a flushing interface is connected to the probe seal 8 through a locking ring 7. The probe seal 8 is locked again by the probe seal locking ring 9 to seal the gap with the telescopic probe 2 to prevent leakage of process media. A 10cm long probe anti-slip sleeve 10 is designed on the top of the telescopic probe 2 to facilitate the insertion and removal of the telescopic probe 2 and play an anti-slip role. A cable locking cap 11 is designed at the tail of the telescopic probe 2 to lock the sensor cable. The specific component features are as follows: The electrode mounting seat 1 is 8cm in total length, 26mm in outer diameter, and 15mm in inner diameter. It is made of SS316L. A protective ball cage is made on one side to protect the sensor electrode end. The outer thread size M20*1.5 on the other side is used to connect the telescopic probe rod 2, and the inner thread size G 1 / 4' is used to connect the sensor electrode.

[0018] The retractable probe rod 2 is made of SS316L stainless steel with a total length of 80 cm, an outer diameter of 26 mm, and an inner diameter of 15 mm. One side has an M20*1.5 inner thread port for connecting to the electrode mounting seat 1 , and the other side has an M20*1.5 inner thread port for connecting to the cable locking cap 11 .

[0019] The process flange 3 is selected according to DN32 SS316L stainless steel, and is welded with an external thread joint for connecting the isolation ball valve 4.

[0020] The isolation ball valve 4 is selected as DN32 PN16 SS316L stainless steel, and has M39*4.0 internal thread ports on both sides for connecting the process flange 3 and the installation pipe 5 with a flushing interface.

[0021] The installation pipe 5 with flushing interface is selected according to the SS316L stainless steel with a total length of 15cm, an outer diameter of 45mm, and an inner diameter of 33mm, and both sides are provided with M39*4.0 external thread ports.

[0022] The flushing interface 6 is a G 1 / 4' internal thread port, which is used to install a plug (when no cleaning is performed) or a stainless steel ferrule joint (when cleaning is required) to facilitate the connection of a flushing water pipe.

[0023] The locking ring 7 is selected from SS316L stainless steel with a total length of 3.5 cm, an outer diameter of 55 mm, an inner thread of M39*4.0, and a concave support on one side for locking the probe rod seal 8.

[0024] The probe rod seal 8 is selected from SS316L stainless steel with a total length of 4.5 cm, an outer diameter of 36 mm and an inner diameter of 26.1 mm. One side is an M30*3.0 external thread for connecting the probe rod seal locking ring 9, and the other side is an external convex support for connecting the locking ring 7. It has two rubber sealing rings inside to seal the process medium and prevent leakage.

[0025] The probe rod seal locking ring 9 is made of ABS plastic with a total length of 4.5 cm and an outer diameter of 55 mm. One side has an M30*3.0 internal thread for connecting the probe rod seal 8, and one side has an opening inner diameter of 26 mm, and is provided with a base and a compression seal for re-sealing.

[0026] The probe rod anti-skid sleeve 10 is made of black rubber with a total length of 10 cm, an outer diameter of 33 mm and an inner diameter of 26 mm, and is sleeved on the rear end of the telescopic probe rod 2 to prevent skidding.

[0027] The cable locking cap 11 is selected according to the M20*1.5 external thread port, and is used to compress the sensor cable and connect it to the tail of the telescopic probe rod 2.

[0028] The present invention discloses a retractable and pluggable analytical electrode mounting bracket with a flushing port. The electrode mounting bracket is mainly suitable for process pipelines (tanks) with a pressure of ≤1.0MPa. The bracket adopts a flange to connect with the reverse flange reserved for the process pipeline (tank). The sensor electrode is connected to the electrode mounting seat 1 through a thread. The electrode cable passes through the cable locking cap 11 through the middle hole of the retractable probe rod 2, and the insertion depth of the probe rod can be freely adjusted. After the insertion depth meets the requirements, the locking ring 7 and the probe rod sealing locking ring 9 are locked and sealed to ensure that the measured medium does not leak. When the electrode needs to be replaced, the retractable probe rod 2 can be pulled out until the electrode mounting seat 1 is located in the mounting tube 5 with a flushing interface, and then the isolation ball valve 4 is closed to block the leakage of the process medium. The retractable probe rod 2 can be pulled out after unlocking through the locking ring 7, and the sensor electrode can be replaced or repaired. When the electrode needs to be cleaned, the flushing port can be connected to the flushing water pipe through the solenoid valve to flush the sensor electrode online (the flushing water flow and pressure must meet certain requirements), which prolongs the life of the electrode and greatly reduces the labor intensity of the instrument maintenance personnel.

[0029] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A retractable analytical electrode mounting bracket with a flushing port, characterized in that: The invention comprises an electrode mounting seat (1), a telescopic probe rod (2), a process flange (3), an isolation ball valve (4), a mounting tube with a flushing interface (5), a locking ring (7), a probe rod seal (8) and a probe rod seal locking ring (9), wherein the electrode mounting seat (1) is connected to the telescopic probe rod (2) through an external thread, the two ends of the isolation ball valve (4) are respectively connected to the process flange (3) and the mounting tube with a flushing interface (5) through internal threads, the mounting tube with a flushing interface (5) is connected to the probe rod seal (8) through a locking ring (7), the probe rod seal (8) is again locked and sealed to form a gap with the telescopic probe rod (2) through the probe rod seal locking ring (9), and the telescopic probe rod (2) is sequentially passed through the process flange (3), the isolation ball valve (4), the mounting tube with a flushing interface (5), the locking ring (7), the probe rod seal (8) and the probe rod seal locking ring (9); a sealing ring is arranged inside the locking ring (7) for sealing the process medium to prevent leakage.

2. The analytical electrode mounting bracket with a retractable and pluggable flushing port according to claim 1, characterized in that: A flushing interface (6) is provided on the installation pipe with a flushing interface (5), and the flushing interface (6) can be connected to external flushing water to flush the electrode.

3. The analytical electrode mounting bracket with a retractable and pluggable flushing port according to claim 1, characterized in that: The electrode mounting seat (1) is connected to the sensor electrode via an internal thread; one end of the electrode mounting seat (1) is made into a protective ball cage for protecting the sensor electrode, and the other end is connected to the telescopic probe rod (2) via an external thread.

4. The analytical electrode mounting bracket with a retractable and pluggable flushing port according to claim 3, characterized in that: A cable locking cap (11) is provided at one end of the telescopic probe (2) away from the electrode mounting seat (1) and is used to lock the sensor electrode cable and connect the tail of the telescopic probe (2).

5. The analytical electrode mounting bracket with a retractable and pluggable flushing port according to claim 4, characterized in that: A probe rod anti-skid sleeve (10) is provided at one end of the telescopic probe rod (2) close to the cable locking cap (11) to prevent slipping and facilitate the insertion and removal of the telescopic probe rod (2); the probe rod anti-skid sleeve (10) is made of rubber.

6. The analytical electrode mounting bracket with a retractable and pluggable flushing port according to claim 1, characterized in that: The process flange (3) is made of stainless steel and has a welded external threaded joint for connecting to the isolation ball valve (4); the isolation ball valve (4) is made of stainless steel and has internal threads on both sides for connecting to the process flange (3) and the installation pipe (5) with a flushing interface.

7. The analytical electrode mounting bracket with a retractable and pluggable flushing port according to claim 1, characterized in that: The installation pipe with flushing interface (5) is made of stainless steel and has external threads on both sides; the flushing interface (6) is provided with an internal thread and is used for installing a plug or a stainless steel ferrule joint, so as to facilitate the connection of a flushing water pipe.

8. The analytical electrode mounting bracket with a retractable and pluggable flushing port according to claim 1, characterized in that: The locking ring (7) is made of stainless steel, and has a concave support on one side for locking the probe rod seal (8); the probe rod seal (8) is made of stainless steel, and has an external threaded opening on one side for connecting to the probe rod seal locking ring (9), and a convex support on the other side for connecting to the locking ring (7).

9. The analytical electrode mounting bracket with a retractable and pluggable flushing port according to claim 8, characterized in that: The probe rod seal locking ring (9) is made of plastic material, one side of which is an internal thread opening for connecting the probe rod seal (8), and the other side is open and has a support platform for pressing the seal for re-sealing.

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