A sludge single-cylinder plunger pump

Abstract

This utility model discloses a single-cylinder plunger pump for sludge, relating to the field of plunger pump technology. It includes a gate valve, a conveying cylinder, a hopper, a conveying piston, a plunger, a drive cylinder, a front guide sleeve and a rear guide sleeve on the pump base, a mounting box, a water tank, and a limiting device. The limiting device is fixed to the bottom of the drive cylinder with screws. The hopper, gate valve, water tank, and mounting box are fixed as a whole to the pump base with multiple bolts. Two guide sleeves support and guide the plunger, and the addition of a water tank ensures minimal plunger temperature rise. The limiting device facilitates easy replacement of the seals inside the front guide sleeve. Its structure is simple, reliable, easy to maintain, and low in cost, making it widely applicable.

Description

Technical Field

[0001] This utility model specifically relates to the field of plunger pump technology, and more specifically to a single-cylinder plunger pump for sludge. Background Technology

[0002] Sludge conveying is a crucial step in sludge treatment, and currently, plunger pumps are mainly used for sludge conveying. However, single-cylinder plunger pumps currently have the following main problems: First, the plunger seal, which is a vulnerable part, is very inconvenient to replace, takes a long time to replace, and is quite difficult to disassemble and assemble, which seriously affects the operation; second, the plunger overheats severely, affecting the reliability of the entire equipment. Utility Model Content

[0003] The purpose of this invention is to provide a sludge single-cylinder plunger pump. This device features a simple structure, low sliding friction resistance of the plunger guide, good heat dissipation, and extremely convenient seal replacement, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A sludge single-cylinder plunger pump includes a gate valve, a conveying cylinder, a hopper, a conveying piston, a front guide sleeve, a rear guide sleeve, a plunger, a drive cylinder, a limiting device, a pump base, a mounting box, and a water tank. The plunger is installed in the inner holes of the front guide sleeve and the rear guide sleeve. The front end of the plunger is fixed to the conveying piston by screws, and the rear end of the plunger is fixedly connected to the piston rod of the drive cylinder. The front guide sleeve is fixedly installed in the inner hole of the rear side of the hopper and the inner hole of the front side of the water tank.

[0006] The rear guide sleeve is fixedly installed in the inner hole of the rear side of the water tank and the inner hole of the front side of the mounting box; the cylinder of the drive cylinder is fixed on both the rear side of the mounting box and the pump base; the limiting device is fixed to the bottom of the drive cylinder by screws; the hopper, the valve body of the gate valve, the water tank and the mounting box are respectively fixedly installed by bolts and fixed on the pump base; the conveying cylinder is fixedly installed between the hopper and the gate valve.

[0007] As a further technical solution of this utility model, the plunger is a cylindrical rod or a square rod structure;

[0008] As a further technical solution of this utility model, a sealing element is installed between the inner hole of the front guide sleeve and the plunger; effectively ensuring the sealing performance between the front guide sleeve and the plunger;

[0009] As a further technical solution of this utility model, a sealing element is installed between the inner hole of the rear guide sleeve and the plunger to ensure the seal between the rear guide sleeve and the plunger.

[0010] As a further technical solution of this utility model, the conveying cylinder, guide sleeve, and drive cylinder are coaxially arranged to ensure stability during operation.

[0011] As a further technical solution of this utility model, the limiting device includes a limiting rod, a positioning sleeve, and a fixing plate. The limiting rod is disposed inside the positioning sleeve, and the fixing plate is disposed on the positioning sleeve and fixedly installed by bolts. The setting of the limiting rod effectively realizes the adjustment effect of the plunger stroke.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] In use, the front and rear guide sleeves effectively support and guide the plunger, reducing friction during plunger movement and ensuring good heat dissipation.

[0014] This invention, by adding a water tank, effectively ensures that the plunger temperature variation range is small through heat transfer;

[0015] This invention provides a limiting device at the bottom of the driving cylinder to effectively adjust the plunger stroke, thereby facilitating the separation between the plunger and the front guide sleeve and making it more convenient to replace the seals inside the front guide sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] In the diagram: 1-gate valve, 2-conveying cylinder, 3-hopper, 4-conveying piston, 5-front guide sleeve, 6-rear guide sleeve, 7-plunger, 8-drive cylinder, 9-limiting device, 10-pump base, 11-mounting box, 12-water tank. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1In this embodiment of the utility model, a sludge single-cylinder plunger pump includes a gate valve 1, a conveying cylinder 2, a hopper 3, a conveying piston 4, a front guide sleeve 5, a rear guide sleeve 6, a plunger 7, a drive cylinder 8, a limiting device 9, a pump base 10, a mounting box 11, and a water tank 12. The plunger 7 is installed in the inner hole of the front guide sleeve 5 and the inner hole of the rear guide sleeve 6. The front end of the plunger 7 is fixed to the conveying piston 4 by screws, and the rear end of the plunger 7 is fixedly connected to the piston rod of the drive cylinder 8. The front guide sleeve 5 is fixedly installed in the inner hole of the rear side of the hopper 3 and the inner hole of the front side of the water tank 12.

[0020] The rear guide sleeve 6 is fixedly installed in the inner hole of the rear side of the water tank 12 and the inner hole of the front side of the mounting box 11; the cylinder of the drive cylinder 8 is fixed on both the rear side of the mounting box 11 and the pump base 10; the limiting device 9 is fixed to the bottom of the drive cylinder 8 by screws; the hopper 3, the valve body of the gate valve 1, the water tank 12 and the mounting box 11 are respectively fixedly installed by bolts and fixed on the pump base 10; the conveying cylinder 2 is fixedly installed between the hopper 3 and the gate valve 1.

[0021] The plunger 7 is a cylindrical rod or a square rod structure.

[0022] By adopting the above technical solution, the front guide sleeve 5 and the rear guide sleeve 6 effectively support and guide the plunger 7 during use, reducing the friction of the plunger 7 during movement, and at the same time, effectively ensuring good heat dissipation performance.

[0023] In this embodiment, a sealing element is installed between the inner hole of the front guide sleeve 5 and the plunger 7;

[0024] In this embodiment, a sealing element is installed between the inner hole of the rear guide sleeve 6 and the plunger 7;

[0025] By adopting the above technical solution and by adding the installed water tank 12, the temperature change range of the plunger 7 is effectively ensured to be small through heat transfer.

[0026] Furthermore, the conveying cylinder 2, guide sleeve 5, guide sleeve 6 and drive cylinder 8 are arranged coaxially;

[0027] In this embodiment, the limiting device 9 includes a limiting rod, a positioning sleeve, and a fixing plate. The limiting rod is disposed inside the positioning sleeve, and the fixing plate is disposed on the positioning sleeve and fixedly installed by bolts.

[0028] By adopting the above technical solution, a limiting device 9 is set at the bottom of the driving cylinder 8 to effectively adjust the stroke of the plunger 7, thereby facilitating the separation between the plunger 7 and the front guide sleeve 5, and making it more convenient to replace the seals inside the front guide sleeve 5.

[0029] The working principle of this utility model is as follows: the hydraulic system of the driving cylinder 8 drives the plunger 7 to reciprocate, and the conveying piston 4 forms suction and discharge pressure in the conveying cylinder 2. The sludge is sucked in from the hopper 3 through the conveying cylinder 2 and discharged by the gate valve 1 to achieve continuous conveying.

[0030] The water tank 12 reduces the temperature of the plunger 7 through heat exchange, and the front guide sleeve 5 and the rear guide sleeve 6, together with the seals, ensure sealing and movement stability. The limiting device 9 adjusts the stroke of the plunger 7, which facilitates quick separation of the front guide sleeve 5 and the rear guide sleeve 6 from the plunger 7 during maintenance, thereby improving maintenance efficiency.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A sludge single-cylinder plunger pump, characterized in that: The system includes a gate valve (1), a conveying cylinder (2), a hopper (3), a conveying piston (4), a front guide sleeve (5), a rear guide sleeve (6), a plunger (7), a drive cylinder (8), a limiting device (9), a pump base (10), a mounting box (11), and a water tank (12). The plunger (7) is installed in the inner hole of the front guide sleeve (5) and the inner hole of the rear guide sleeve (6). The front end of the plunger (7) is fixed to the conveying piston (4) by screws, and the rear end of the plunger (7) is fixedly connected to the piston rod of the drive cylinder (8). The front guide sleeve (5) is fixedly installed in the inner hole of the rear side of the hopper (3) and the inner hole of the front side of the water tank (12). The rear guide sleeve (6) is fixedly installed in the inner hole of the rear side of the water tank (12) and the inner hole of the front side of the mounting box (11); the cylinder of the driving cylinder (8) is simultaneously fixed on the rear side of the mounting box (11) and the pump seat (10); the limiting device (9) is fixed to the bottom of the driving cylinder (8) by screws; the hopper (3), the valve body of the gate valve (1), the water tank (12) and the mounting box (11) are respectively fixedly installed by bolts and fixed on the pump seat (10); the conveying cylinder (2) is fixedly installed between the hopper (3) and the gate valve (1).

2. The sludge single-cylinder plunger pump according to claim 1, characterized in that: The plunger (7) is a cylindrical rod or a square rod structure.

3. A sludge single-cylinder plunger pump according to claim 1, characterized in that: A seal is installed between the inner hole of the front guide sleeve (5) and the plunger (7).

4. A sludge single-cylinder plunger pump according to claim 1, characterized in that: A seal is installed between the inner hole of the rear guide sleeve (6) and the plunger (7).

5. A sludge single-cylinder plunger pump according to claim 1, characterized in that: The conveying cylinder (2), the front guide sleeve (5), the rear guide sleeve (6) and the driving cylinder (8) are arranged coaxially.

6. A sludge single-cylinder plunger pump according to claim 1, characterized in that: The limiting device (9) includes a limiting rod, a positioning sleeve and a fixing plate. The limiting rod is located inside the positioning sleeve and the fixing plate is located on the positioning sleeve and is fixedly installed by bolts.

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