Novel high-strength anti-corrosion reciprocating slurry pump

Abstract

The utility model relates to the technical field of slurry plunger pump structures, in particular to a novel high-strength anti-corrosion reciprocating type slurry pump which comprises a pump body and a plunger, a discharging valve box and a feeding valve box are arranged on the left side and the right side of the pump body respectively, and valve covers are installed on the tops of the discharging valve box and the feeding valve box respectively. Valve seats are arranged on the inner side of the discharging valve box and the inner side of the feeding valve box, and the valve seats are located under the valve covers; the valve ball is plugged in the middle of the valve seat, a guide structure is arranged on the upper side of the valve ball, and the valve ball guide structure is designed on the edge of the valve element, so that the valve ball can move up and down along the valve element of the valve ball guide structure when the slurry pump enters and exits slurry, displacement and deviation of the valve ball can be avoided, and a rubber sealing ring is attached to the bottom of the valve element. Therefore, when the valve element moves downwards under the pressure of the plunger and the reset action of the spring and abuts against the valve ball to block the middle of the valve seat, the valve element is directly and tightly attached to the valve element through the rubber sealing ring, the double-sealing effect can be achieved through combination of the valve element and the rubber sealing ring, and the sealing performance is good.

Description

Technical Field

[0001] The utility model discloses a novel high-strength anti-corrosion reciprocating slurry pump, which relates to the technical field of slurry plunger pump structures. Background Art

[0002] Reciprocating slurry pumps are not only used to transport mud in oil drilling, but are also widely used in many industries such as chemical, pharmaceutical, food processing, mining, etc. to transport various slurries and mixtures. The flow and pressure of reciprocating pumps can be controlled by adjusting the working speed of the pump, which makes them very useful in applications that require precise control of the transportation process. Reciprocating slurry pumps can generate higher pressures through the reciprocating motion of the plunger, realize the lifting and displacement of the valve ball on both sides of the pump body, and are used to block or open the through hole in the middle of the valve seat. It is suitable for conveying viscous substances and highly abrasive materials. The design of this pump allows it to achieve high flow and high pressure delivery in a smaller space. The existing slurry pump valve cores are all flat designs and lack of valve Due to the guiding function of the ball, the valve ball is easy to deviate during use, causing leakage and pressure loss in the valve box. In addition, the materials of the fluid material contact parts of the pump are usually iron or stainless steel. When it is used in corrosive chemical industries, the fluid materials have strong acid or alkali properties and are highly corrosive. Then the above parts in contact with the materials will be corroded, greatly shortening the service life of the plunger pump. At the same time, the material will chemically react with the iron parts to replace impurities, polluting the properties and purity of the fluid materials. At the same time, the valve ball of the traditional slurry pump is made of rubber. Because the material is soft and not wear-resistant, it is easy to lead to a short service life and the rubber ball needs to be replaced frequently. Therefore, it is necessary to design a new type of high-strength and corrosion-resistant reciprocating slurry pump. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a new type of high-strength corrosion-resistant reciprocating slurry pump to solve the problems mentioned in the above background technology.

[0004] In order to achieve the above-mentioned purpose, the utility model is implemented through the following technical scheme: a new type of high-strength corrosion-resistant reciprocating slurry pump, including a pump body and a plunger, the left and right sides of the pump body are respectively provided with a discharge valve box and a feed valve box, the top of the discharge valve box and the feed valve box are respectively installed with valve covers, the inner sides of the discharge valve box and the feed valve box are provided with valve seats, and the valve seats are located directly below the valve covers; a valve ball is placed in the middle of the valve seat, and a guide structure is provided on the upper side of the valve ball, and the guide structure includes a valve core covered on the upper side of the valve ball, the valve core is arranged on the lower side of the valve cover for sliding up and down, and a spring elastically connected to the valve cover is provided on the top of the valve core.

[0005] Based on the above technical solution, an integrated sleeve is arranged on the upper side of the valve core, a guide tube cavity is arranged inside the sleeve, a guide rod inserted into the guide tube cavity is fixedly arranged at the bottom of the valve cover, and the springs are all sleeved on the outside of the sleeve and the guide rod.

[0006] Based on the above technical solution, the outer end flange of the feed valve box is connected to the feed pipe, the outer end flange of the discharge valve box is connected to the discharge pipe, and a gas storage tank is installed in the middle of the discharge pipe.

[0007] Based on the above technical solution, the pump body, discharge valve box, feed valve box, valve seat, valve core, valve cover, gas storage tank, feed pipe and discharge pipe are all made of high molecular weight polypropylene material.

[0008] Based on the above technical solution, the distance that the valve core is displaced upward does not exceed the radius of the valve ball, and the diameter depth of the guide tube cavity is less than the radius of the valve ball.

[0009] Based on the above technical solution, the valve core is a ball cover with its opening facing downward and wrapping the upper half of the valve ball.

[0010] Based on the above technical solution, a layer of rubber sealing ring is attached to the outer periphery of the bottom surface of the valve core, and abuts against the upper side of the valve seat through the rubber sealing ring.

[0011] Based on the above technical solution, the valve ball is made of high-strength glass material.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The utility model designs a valve ball guide structure on the side of the valve core, so that the valve ball can move up and down along the valve core of the valve ball guide structure when the slurry pump enters and exits the slurry, which can prevent the valve ball from moving off the track, and a rubber sealing ring is attached to the bottom of the valve core, so when the valve core moves downward under the plunger pressure and the spring return action, the valve ball is pressed against the middle of the valve seat, and the rubber sealing ring is directly and tightly fitted to the valve core, and the combination of the two can achieve a double sealing effect with good sealing performance;

[0014] Secondly, because the valve ball is made of high-strength glass material, its wear resistance is much higher than that of ordinary rubber balls, and its sealing performance is better, which is conducive to improving the use efficiency of the slurry pump;

[0015] The pump body, discharge valve box, feed valve box, valve seat, valve core, valve cover, gas tank, feed pipe and discharge pipe are all made of high molecular weight polypropylene material. The polypropylene material is resistant to corrosion by strong acids and alkalis. It is a non-polar material and has no chemical effect on all ions in the water and chemical substances in the building. It will not rust or corrode. It is suitable for chemical industries with strong acids and alkalis as the fluid medium. The material is light and the friction coefficient is lower than that of metal pipes. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 For this utility model Figure 1 Schematic diagram of the local structure of A;

[0019] Figure 3 This is a schematic diagram of the connection structure between the guide rod and the guide lumen of the utility model;

[0020] In the figure: pump body 1, plunger 2, discharge valve box 4, discharge pipe 41, air storage tank 42, feed valve box 5, feed pipe 51, valve seat 6, valve ball 7, valve core 8, sleeve 81, guide tube cavity 82, rubber sealing ring 83, guide rod 9, spring 91, valve cover 10. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] Please refer to this Figure 1-Figure 3The utility model provides a technical solution for a new type of high-strength anti-corrosion reciprocating slurry pump: it includes a pump body 1 and a plunger 2, a discharge valve box 4 and a feed valve box 5 are respectively arranged on the left and right sides of the pump body 1, a valve cover 10 is installed on the top of the discharge valve box 4 and the feed valve box 5, a valve seat 6 is arranged inside the discharge valve box 4 and the feed valve box 5, and the valve seat 6 is located directly below the valve cover 10; the valve cover 10 is locked on the valve box by an external frame with bolts, a valve ball 7 is placed in the middle of the valve seat 6, and a guide structure is arranged on the upper side of the valve ball 7 Therefore, the valve ball 7 and the guide structure on the valve seat 6 can be replaced by removing the valve cover 10, which is simple and convenient to use. The guide structure includes a valve core 8 which is covered on the upper side of the valve ball 7. The valve core 8 is a ball cover with an opening facing downward, and wraps the upper half of the valve ball 7 placed on the valve seat 6. After the valve core 8 is in close contact with the upper side of the valve seat 6, the valve ball 7 is tightly sealed inside the ball cover, and the valve ball 7 is pressed against the middle of the valve seat 6, thereby achieving a double sealing effect, greatly reducing the effects of valve box leakage and pressure loss.

[0023] The valve core 8 is arranged on the lower side of the valve cover 10 for sliding up and down, and a spring 91 elastically connected to the valve cover 10 is arranged on the top of the valve core 8, an integrated sleeve 81 is arranged on the upper side of the valve core 8, a guide tube cavity 82 is arranged on the inner side of the sleeve 81, and a guide rod 9 inserted into the guide tube cavity 82 is fixedly arranged at the bottom of the valve cover 10, and the spring 91 is sleeved on the outer side of the sleeve 81 and the guide rod 9. This arrangement allows the guide tube cavity 82 on the valve core 8 to be inserted into the guide rod 9 when the valve core 8 moves upward, so that the valve core 8 is guided and displaced along the guide rod 9 to avoid the valve core 8 and the valve ball 7 from moving off track, and a layer of rubber sealing ring 83 is attached to the outer periphery of the bottom surface of the valve core 8, and the rubber sealing ring 83 is abutted against the upper side of the valve seat 6. This arrangement also makes it easier for the bottom cover of the valve core 8 to be horizontally close to the valve seat 6, so that the closing effect is better, and the use accuracy and stability are improved.

[0024] And according to the above technical solution, it is further arranged that the distance of the upward displacement of the valve core 8 does not exceed the radius of the valve ball 7, and the diameter depth of the guide tube cavity 82 is less than the radius of the valve ball 7. Therefore, the valve core 8 is separated from the upper side of the valve seat 6 when it is displaced upward, and the valve ball 7 is separated from the middle opening of the valve seat 6 when it is displaced upward. At this time, the valve ball 7 is not easy to be separated from the valve core 8 by the distance after the valve seat 6 is separated, which plays a certain limiting role on the valve ball 7. The valve ball 7 can only move in the ball cover of the valve core 8, which is more ingenious and stable to use.

[0025] In this embodiment, the outer end flange of the feed valve box 5 is connected to the feed pipe 51, the outer end flange of the discharge valve box 4 is connected to the discharge pipe 41, and an air storage tank 42 is installed in the middle of the discharge pipe 41. The pump body 1, the discharge valve box 4, the feed valve box 5, the valve seat 6, the valve core 8, the valve cover 10, the air storage tank 42, the feed pipe 51 and the discharge pipe 41 are all made of high molecular weight polypropylene (PP-R) material. The polypropylene (PP-R) material has the characteristics of strong acid and alkali corrosion resistance, belongs to a non-polar material, has no chemical effect on all ions in the water and chemical substances in the building, will not rust and corrode, is suitable for chemical industries such as fluid media with strong acids and alkalis, and the material is light and the friction coefficient is lower than that of metal pipes;

[0026] In addition, polypropylene (PP-R) has good heat resistance and thermal insulation properties and is light in weight, which can greatly reduce transportation costs and installation construction intensity, while also increasing its service life cycle.

[0027] Compared with the valve ball 7 made of traditional rubber material, the valve ball 7 in the utility model is made of high-strength glass material, has much higher wear resistance than ordinary rubber balls, has better sealing performance, does not need to be replaced frequently, and is beneficial to improving the use efficiency of the slurry pump.

[0028] It should be noted that the present invention mainly improves the above-mentioned structure, and the functions, components and structures not mentioned herein can be implemented by using components and structures in the prior art that can realize the corresponding functions.

[0029] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A novel high-strength anti-corrosion reciprocating slurry pump, comprising a pump body (1) and a plunger (2), wherein a discharge valve box (4) and a feed valve box (5) are respectively arranged on the left and right sides of the pump body (1), and characterized in that: A valve cover (10) is installed on the top of the discharge valve box (4) and the feed valve box (5), and a valve seat (6) is arranged inside the discharge valve box (4) and the feed valve box (5), and the valve seat (6) is located directly below the valve cover (10); A valve ball (7) is placed in the middle of the valve seat (6) to block the valve. A guide structure is provided on the upper side of the valve ball (7). The guide structure includes a valve core (8) which is covered on the upper side of the valve ball (7). The valve core (8) is slidably arranged on the lower side of the valve cover (10) up and down, and a spring (91) elastically connected to the valve cover (10) is provided on the top of the valve core (8).

2. The novel high-strength anti-corrosion reciprocating slurry pump according to claim 1 is characterized in that: An integral sleeve (81) is provided on the upper side of the valve core (8), a guide tube cavity (82) is provided on the inner side of the sleeve (81), a guide rod (9) is fixedly provided on the bottom of the valve cover (10) and is inserted into the guide tube cavity (82), and the spring (91) is sleeved on the outer sides of the sleeve (81) and the guide rod (9).

3. The novel high-strength anti-corrosion reciprocating slurry pump according to claim 1 is characterized in that: The outer end flange of the feed valve box (5) is connected to the feed pipe (51), the outer end flange of the discharge valve box (4) is connected to the discharge pipe (41), and a gas storage tank (42) is installed in the middle of the discharge pipe (41).

4. The novel high-strength anti-corrosion reciprocating slurry pump according to claim 3 is characterized in that: The pump body (1), the discharge valve box (4), the feed valve box (5), the valve seat (6), the valve core (8), the valve cover (10), the gas storage tank (42), the feed pipe (51) and the discharge pipe (41) are all made of a high molecular weight polypropylene material.

5. The novel high-strength anti-corrosion reciprocating slurry pump according to claim 2 is characterized in that: The distance that the valve core (8) moves upward does not exceed the radius of the valve ball (7), and the diameter depth of the guide tube cavity (82) is less than the radius of the valve ball (7).

6. The novel high-strength anti-corrosion reciprocating slurry pump according to claim 1 is characterized in that: The valve core (8) is a ball cover with its opening facing downwards, and wraps around the upper part of the valve ball (7).

7. The novel high-strength anti-corrosion reciprocating slurry pump according to claim 1 or 6 is characterized in that: A layer of rubber sealing ring (83) is attached to the outer periphery of the bottom surface of the valve core (8), and abuts against the upper side of the valve seat (6) through the rubber sealing ring (83).

8. The novel high-strength anti-corrosion reciprocating slurry pump according to claim 1 is characterized in that: The valve ball (7) is made of high-strength glass material.

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