Chemical raw material conveying pump

Abstract

The utility model relates to the technical field of delivery pumps, in particular to a chemical raw material delivery pump which comprises a pump body and a feeding pipe, and the feeding pipe is communicated with a feeding port of the pump body. A feeding pipe is arranged at the right end of the feeding pipe, the upper end and the lower end of the feeding pipe communicate with first electromagnetic valves, discharging ports of the first electromagnetic valves communicate with conveying pipes, second electromagnetic valves communicate between the conveying pipes and the feeding pipe, guiding pipes are arranged in the conveying pipes, and feeding ports close to the communicating positions of the conveying pipes and the first electromagnetic valves are formed in the side faces of the guiding pipes. A fixing ring is fixed in the material guide pipe, and an inner threaded pipe is arranged at the left end of the fixing ring; according to the conveying pump, due to the fact that the two conveying pipes are arranged, even if a worker does not clean and dredge the blocked filter screen plate in the first time, the conveying work can be smoothly completed through the conveying pump, and the conveying efficiency of the conveying pump is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of delivery pumps, in particular to a chemical raw material delivery pump. Background Art

[0002] A pump is a machine that conveys fluids or pressurizes fluids. It transfers the mechanical energy of the prime mover or other external energy to the liquid, increasing the energy of the liquid. Pumps are mainly used to convey liquids such as water, oil, acid and alkali liquids, emulsions, suspensions and liquid metals. They can also convey liquid-gas mixtures and liquids containing suspended solids. Pumps can usually be divided into three categories according to their working principles: positive displacement pumps, dynamic pumps and other types of pumps. In addition to classification by working principle, they can also be classified and named by other methods. Conveying pumps are often used to convey fluid chemical raw materials.

[0003] The Chinese patent authorization announcement number CN216742129U discloses a highly enclosed long-distance chemical raw material delivery pump, including a base, a pump body fixedly installed on the top surface of the base, a fixed sleeve fixedly installed on the top surface of the base, an inlet pipe fixedly connected to the top of the fixed sleeve, and a discharge pipe fixedly connected to the side of the fixed sleeve. The utility model makes the lower end of the threaded rod fixedly connected to the sealing plate, screws it into the storage tube downward, and makes the sealing plate push the top plate downward to move, so that the sealing rod compresses the spring, and the connecting groove on the outer surface of the sealing rod makes the liquid in the discharge pipe pass through the connecting groove and flow into the installation sleeve, and the assembly is filled into the storage tube, and the storage tube is sealed by screwing the threaded rod upward and driving the sealing plate to move up, thereby realizing the collection of raw materials, and completing the raw material extraction and detection without stopping the machine, which greatly ensures the actual raw material delivery efficiency and has a good use effect.

[0004] By reviewing the above comparative documents, it can be seen that the prior art still has the following deficiencies. Generally, a filter plate is arranged in the feed pipe to block impurities in the chemical raw materials, so as to reduce the wear of the impeller in the delivery pump. However, when the filter plate is used for a long time, it will be clogged by impurities, so the filtering efficiency of the filter plate will decrease. Since it is often difficult to clean the filter plate in time during use, if the clogged filter plate continues to be used to filter the impurities in the chemical raw materials, the delivery efficiency of the delivery pump for the chemical raw materials will continue to decrease. If the filter plate is removed and cleaned, the delivery pump will stop working, which will cause the chemical raw materials to be unable to continue to be delivered. Utility Model Content

[0005] The utility model provides a chemical raw material conveying pump, which is beneficial to ensuring the smoothness and efficiency of conveying chemical raw materials and effectively ensuring the normal operation of the conveying pump.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A chemical raw material delivery pump comprises a pump body and a feed pipe, wherein the feed pipe is connected to a feed port of the pump body;

[0008] The right end of the feed pipe is provided with a feed pipe, the upper and lower ends of the feed pipe are both connected with a first solenoid valve, the outlet of the first solenoid valve is both connected with a feed pipe, the feed pipe and the feed pipe are both connected with a second solenoid valve, a guide pipe is provided in the feed pipe, a feed port close to the connection point between the feed pipe and the first solenoid valve is opened on the side of the guide pipe, a fixing ring is fixed in the guide pipe, an internal threaded pipe is provided at the left end of the fixing ring, the internal threaded pipe is connected with an elastic telescopic pipe between adjacent fixing rings, and the internal threaded pipe is threadedly connected with an external threaded T-tube, and a filter plate is fixed in the external threaded T-tube;

[0009] The upper and lower ends of the inner wall of the guide tube are fixed with protective shells, and elastic switches are fixed in the protective shells. The right end of the elastic switch is provided with a pressure rod, and the pressure rod slides to the right to penetrate the adjacent outlet protective shell, and the right end of the pressure rod is fixed to the left side of the internal threaded tube;

[0010] An external thread sealing plug is fixed on the right end of the material guiding pipe, and a sealing cover fixed to the external thread sealing plug is provided on the right end of the material guiding pipe.

[0011] Furthermore, a retaining ring sleeved on the periphery of the material guide pipe is fixed in the material delivery pipe, a positioning ring fixedly sleeved on the periphery of the material guide pipe is provided on the right side of the retaining ring, and a first sealing ring sleeved on the periphery of the material guide pipe is provided between the retaining ring and the positioning ring.

[0012] Furthermore, an operating rod is fixed to the middle of the right end of the filter plate, and the operating rod extends to the right out of the positioning ring.

[0013] Furthermore, a second sealing ring is provided between the internally threaded tube and the externally threaded T-tube.

[0014] Furthermore, a thread is provided at the right end of the inner wall of the feed pipe, and the external thread sealing plug is threadably connected to the feed pipe.

[0015] Furthermore, an outer sealing ring is provided between the sealing cover and the feed pipe and is sleeved on the outer periphery of the external thread sealing plug.

[0016] Beneficial effects of the utility model:

[0017] 1. By setting two feeding pipes, when the chemical raw materials are normally transported through the delivery pump, one of the feeding pipes is normally feeding, and the other feeding pipe is in a closed state. As long as the filter plate in one of the feeding pipes is seriously blocked, the filtering efficiency of the filter plate is greatly reduced, so the pressure on the filter plate increases, so the pressure rod will press the corresponding elastic switch, and the elastic switch will control the first solenoid valve and the second solenoid valve on one of the feeding pipes to close, and the first solenoid valve and the second solenoid valve on the other feeding pipe will automatically open, so the chemical raw materials will enter the pump body through the other feeding pipe. Even if the staff does not clean and dredge the blocked filter plate in the first time, the feeding work can be smoothly completed through the delivery pump, which effectively ensures the feeding efficiency of the delivery pump;

[0018] 2. Since the filter plate in one of the feed pipes is blocked, one of the feed pipes is in a state of stopping the delivery of chemical raw materials, while the delivery pump is normally delivering chemical raw materials through the other feed pipe, the staff can remove the filter plate in one of the feed pipes for cleaning and maintenance without stopping the pump body. Therefore, there is no need to shut down the delivery pump when cleaning the filter plate, so that the delivery pump can always remain in a normal delivery state, better ensuring the delivery efficiency of the delivery pump for chemical raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the material delivery pipe of the utility model;

[0021] Figure 3 A is a schematic diagram of the enlarged structure of the local area of ​​the utility model;

[0022] Figure 4 It is a schematic diagram of the local structure of the material conveying pipe of the utility model;

[0023] Figure 5 This is a schematic diagram of the material guide tube structure of the utility model.

[0024] Description of reference numerals:

[0025] Pump body 1, feed pipe 2, feed inlet pipe 3, first solenoid valve 4, feed delivery pipe 5, guide pipe 6, feed inlet 7, sealing cover 8, external thread sealing plug 9, external sealing ring 10, internal thread pipe 11, external thread T-tube 12, filter plate 13, operating rod 14, positioning ring 15, retaining ring 16, first sealing ring 17, fixing ring 18, elastic telescopic tube 19, protective shell 20, elastic switch 21, pressure rod 22, second sealing ring 23, second solenoid valve 24. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of those skilled in the art, the present invention is further described below in conjunction with embodiments and drawings. The contents mentioned in the implementation modes are not intended to limit the present invention.

[0027] like Figure 1-5 As shown, in this embodiment, a pump body 1 and a feed pipe 2 are included, the feed pipe 2 is connected to the feed port of the pump body 1, a feed pipe 3 is provided at the right end of the feed pipe 2, the upper and lower ends of the feed pipe 3 are connected to a first electromagnetic valve 4, the outlet of the first electromagnetic valve 4 is connected to a delivery pipe 5, the delivery pipe 5 and the feed pipe 2 are connected to a second electromagnetic valve 24, a guide pipe 6 is provided in the delivery pipe 5, a feed port 7 is opened on the side of the guide pipe 6 close to the connection between the delivery pipe 5 and the first electromagnetic valve 4, and a fixing ring 18 is fixed in the guide pipe 6, the fixing ring An internal threaded tube 11 is provided at the left end of 18, and an elastic telescopic tube 19 is connected between the internal threaded tube 11 and the adjacent fixed ring 18, and the internal threaded tube 11 is threadedly connected with an external threaded T-tube 12, and a filter plate 13 is fixed in the external threaded T-tube 12, and a protective shell 20 is fixed at the upper and lower ends of the inner wall of the guide tube 6, and an elastic switch 21 is fixed in the protective shell 20, and a pressure rod 22 is provided at the right end of the elastic switch 21, and the pressure rod 22 slides to the right to penetrate the adjacent protective shell 20, and the right end of the pressure rod 22 is fixed to the left side of the internal threaded tube 11.

[0028] By setting two feeding pipes 5, when the chemical raw materials are normally transported through the delivery pump, one of the feeding pipes 5 is normally transporting, the first solenoid valve 4 and the second solenoid valve 24 on the feeding pipe 5 are both in an open state, and the first solenoid valve 4 and the second solenoid valve 24 on the other feeding pipe 5 are both in a closed state, that is, the other feeding pipe 5 is in a closed state. As long as the filter plate 13 in one of the feeding pipes 5 is seriously blocked, the filtering efficiency of the filter plate 13 is greatly reduced, so the pressure on the filter plate 13 increases, and the leftward thrust on the externally threaded T-tube 12 and the internally threaded tube 11 continues to increase, so the thrust will drive the internally threaded tube 11 and the pressure rod 22 to move left, so the pressure rod 22 will press the corresponding elastic switch 21, and one of the elastic switches 21 is set to be aligned with it. The first solenoid valve 4 and the second solenoid valve 24 on the middle feed pipe 5 are connected in series, and another elastic switch 21 is set to be connected in series with the first solenoid valve 4 and the second solenoid valve 24 on the other feed pipe 5. Therefore, when the pressure rod 22 presses the two elastic switches 21 in the same feed pipe 6, one of the elastic switches 21 will control the first solenoid valve 4 and the second solenoid valve 24 on one of the feed pipes 5 to close, and the other elastic switch 21 will control the first solenoid valve 4 and the second solenoid valve 24 on the other feed pipe 5 to open automatically, so the chemical raw materials will enter the pump body 1 through the other feed pipe 5. Even if the staff does not clean and dredge the blocked filter plate 13 in the first time, the feeding work can be completed smoothly through the delivery pump, which effectively ensures the feeding efficiency of the delivery pump.

[0029] like Figure 3-5 As shown, in this embodiment, an externally threaded sealing plug 9 is fixed to the right end of the material guide pipe 6, and a sealing cover 8 fixed to the externally threaded sealing plug 9 is provided at the right end of the material guide pipe 6. A thread is provided at the right end of the inner wall of the feed pipe 5, and the externally threaded sealing plug 9 is threadedly connected to the feed pipe 5. An operating rod 14 is fixed to the middle of the right end of the filter plate 13, and the operating rod 14 extends to the right out of the positioning ring 15.

[0030] When it is necessary to clean and dredge the blocked filter plate 13, screw the external thread sealing plug 9 out of the feed pipe 5, and then pull the guide pipe 6 outward until the guide pipe 6 moves out of the feed pipe 5. At this time, the staff can reach into the feed inlet 7 and screw the operating rod 14, which will drive the filter plate 13 and the external threaded T-tube 12 to rotate until the external threaded T-tube 12 is screwed out of the internal threaded tube 11. Then the external threaded T-tube 12 and the filter plate 13 can be easily removed from the feed inlet 7 to remove the guide pipe 6. This can facilitate cleaning and unblocking of the filter plate 13. In summary, when cleaning and unblocking the filter plate 13 in one of the feed pipes 5, since the other feed pipe 5 is normally conveying chemical raw materials, the staff can remove the filter plate 13 in one of the feed pipes 5 for cleaning and maintenance without stopping the operation of the pump body 1. Therefore, there is no need to shut down the delivery pump when cleaning the filter plate 13, so that the delivery pump can always be kept in a normal delivery state, thereby better ensuring the delivery efficiency of the delivery pump for chemical raw materials.

[0031] like Figure 2 As shown, in this embodiment, an outer sealing ring 10 is provided between the sealing cover 8 and the feed pipe 5 and is sleeved on the outer periphery of the external thread sealing plug 9 .

[0032] By providing the outer sealing ring 10, when the external thread sealing plug 9 is threadedly connected to the feed pipe 5, the outer sealing ring 10 is compressed between the sealing cover 8 and the feed pipe 5, which is beneficial to improve the sealing performance of the connection between the external thread sealing plug 9 and the feed pipe 5 and prevent leakage.

[0033] like Figure 3 As shown, in this embodiment, a retaining ring 16 is fixedly mounted on the outer periphery of the material guide pipe 6 in the material delivery pipe 5, a positioning ring 15 is fixedly mounted on the outer periphery of the material guide pipe 6 on the right side of the retaining ring 16, and a first sealing ring 17 is mounted on the outer periphery of the material guide pipe 6 between the retaining ring 16 and the positioning ring 15.

[0034] The first sealing ring 17 is provided and compressed between the positioning ring 15 and the retaining ring 16 , thereby preventing the chemical raw material from leaking from the gap between the retaining ring 16 and the material guide pipe 6 .

[0035] like Figure 3 As shown, in this embodiment, a second sealing ring 23 is provided between the internally threaded tube 11 and the externally threaded T-shaped tube 12 .

[0036] By providing the second sealing ring 23 , and sealing the second sealing ring 23 at the connection between the externally threaded T-shaped tube 12 and the internally threaded tube 11 , it is possible to prevent chemical raw materials from leaking from the connection between the externally threaded T-shaped tube 12 and the internally threaded tube 11 .

[0037] All technical features in this embodiment can be freely combined according to actual needs.

[0038] The above embodiments are preferred implementation schemes of the present invention. In addition, other implementation schemes are also included. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A chemical raw material delivery pump, comprising a pump body (1) and a feed pipe (2), wherein the feed pipe (2) is connected to a feed port of the pump body (1), and is characterized in that: The right end of the feed pipe (2) is provided with a feed pipe (3), the upper and lower ends of the feed pipe (3) are both connected to a first solenoid valve (4), the discharge port of the first solenoid valve (4) is both connected to a delivery pipe (5), the delivery pipe (5) and the feed pipe (2) are both connected to a second solenoid valve (24), a guide pipe (6) is provided inside the delivery pipe (5), a side of the guide pipe (6) is provided with a feed port (7) close to the connection between the delivery pipe (5) and the first solenoid valve (4), a fixing ring (18) is fixed inside the guide pipe (6), an internal threaded tube (11) is provided at the left end of the fixing ring (18), an elastic telescopic tube (19) is connected between the internal threaded tube (11) and the adjacent fixing ring (18), and the internal threaded tube (11) is internally threadedly connected to an external threaded T-tube (12), a filter plate (13) is fixed inside the external threaded T-tube (12); The upper and lower ends of the inner wall of the guide tube (6) are fixed with protective shells (20), and the protective shells (20) are fixed with elastic switches (21). The right end of the elastic switch (21) is provided with a pressure rod (22), and the pressure rod (22) slides to the right to penetrate the adjacent protective shell (20), and the right end of the pressure rod (22) is fixed to the left side of the internal threaded tube (11); An external thread sealing plug (9) is fixed to the right end of the material guiding pipe (6), and a sealing cover (8) fixed to the external thread sealing plug (9) is provided at the right end of the material guiding pipe (6).

2. A chemical raw material delivery pump as claimed in claim 1, characterized in that: A retaining ring (16) is fixedly mounted on the periphery of the material guide pipe (6) in the material conveying pipe (5), a positioning ring (15) is fixedly mounted on the periphery of the material guide pipe (6) on the right side of the retaining ring (16), and a first sealing ring (17) is mounted on the periphery of the material guide pipe (6) between the retaining ring (16) and the positioning ring (15).

3. A chemical raw material delivery pump as claimed in claim 2, characterized in that: An operating rod (14) is fixed to the middle of the right end of the filter plate (13), and the operating rod (14) extends to the right outside the positioning ring (15).

4. A chemical raw material delivery pump as claimed in claim 1, characterized in that: A second sealing ring (23) is provided between the internally threaded tube (11) and the externally threaded T-shaped tube (12).

5. A chemical raw material delivery pump as claimed in claim 1, characterized in that: The right end of the inner wall of the feed pipe (5) is provided with a thread, and the external thread sealing plug (9) is threadedly connected to the feed pipe (5).

6. A chemical raw material delivery pump as claimed in claim 1, characterized in that: An outer sealing ring (10) sleeved on the outer periphery of the external thread sealing plug (9) is provided between the sealing cover (8) and the material conveying pipe (5).

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