Gas-driven double-acting booster pump

Abstract

The utility model discloses a gas-driven double-acting booster pump, which relates to the field of booster pumps, solves the problem that the service life of an existing sealing sleeve assembly is affected by heating due to frequent sliding friction, and adopts the following scheme that the gas-driven double-acting booster pump comprises a pump body, a pump shaft and an external seat sleeved on the pump shaft in a sliding manner, a graphite seat and a sealing seat are clamped on the inner side of the external seat, a contact part with the inner wall tightly attached to the outer wall of the pump shaft is arranged in the graphite seat, and a clamping part used for clamping the sealing seat is arranged on the front side of the contact part. The main body of the sealing seat is a sealing part which is hermetically sleeved on the outer wall of the pump shaft; according to the gas-driven double-acting booster pump, through the arrangement of the external seat on the front side of the pump body and the graphite seat and the sealing seat on the inner side of the pump body, the sealing seat can be used for guaranteeing the sealing performance of the pump body during sliding, the graphite seat can conduct heat generated by friction of the pump body, and due to the fact that the graphite seat is made of graphite, the heat conductivity coefficient can be guaranteed; and the friction part is ensured to be in a non-high-temperature state.

Description

Technical Field

[0001] The utility model relates to the technical field of booster pumps, in particular to a gas-driven double-acting booster pump. Background Art

[0002] The principle of gas booster pump is to use the low gas pressure of a large area piston to produce high hydraulic pressure of a small area piston;

[0003] After searching, the application with patent number CN201821320685.8 discloses a single-stage double-acting gas booster pump, including a low-pressure cylinder, valve covers a and b are arranged at both ends of the low-pressure cylinder, the valve covers a and b are connected by bolts, the valve cover b is provided with a central through hole, the low-pressure cylinder is connected to the high-pressure cylinder through the central through hole of the valve cover b, a high-pressure chamber is arranged at one end of the high-pressure cylinder, a one-way valve body assembly is arranged at the opening of the high-pressure chamber, an inner channel is arranged in the high-pressure cylinder, a sleeve 1 is arranged inside the two inner channels in the vertical direction of the high-pressure chamber, a one-way valve body is arranged in the sleeve 1, the one-way valve body at both ends of the one-way valve bodies are connected in sequence with a threaded joint 1, a stainless steel pipe, a three-way right-angle joint and a one-way valve body assembly, and a piston assembly is arranged in the channel composed of the high-pressure cylinder and the low-pressure cylinder;

[0004] The above application document achieves a sealing effect by setting up various components and can avoid the situation where the friction coefficient is affected by the temperature rise at the friction point. However, the structure is complex and needs to be improved on the inside of the pump body, so its practicality is low.

[0005] Therefore, we proposed a gas driven double-acting booster pump. Utility Model Content

[0006] In view of the deficiencies of the prior art, the utility model provides a gas-driven double-acting booster pump, which solves the problem that the existing sealing set components are prone to frequent sliding friction and thus generate heat, which affects their service life.

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a gas-driven double-acting booster pump, comprising a pump body and a pump shaft as an output shaft, and an external seat slidably sleeved on the pump shaft is fixedly installed on the front side of the pump body;

[0008] A graphite seat and a sealing seat are clamped on the inner side of the external seat, a contact portion whose inner wall is tightly attached to the outer wall of the pump shaft is provided in the graphite seat, and a clamping portion for clamping the sealing seat is provided on the front side of the contact portion;

[0009] The main body of the sealing seat is a sealing part that is sealingly sleeved on the outer wall of the pump shaft.

[0010] Preferably, the outer wall of the sealing portion is glued to the clamping portion on the inner side of the graphite seat;

[0011] Among them, the setting of the sealing part can install it in the clamping part, ensure its assembly stability, and thus simultaneously avoid the situation where the sealing seat falls off when the pump shaft slides.

[0012] Preferably, the graphite seat is provided with a sleeve portion located outside the contact portion, an annular sleeve groove is provided on the outer wall of the sleeve portion, and an annular clip matching the specifications of the annular sleeve groove is fixedly installed on the inner side wall of the external seat;

[0013] The shape of the sleeve portion is set so that it can be sleeved on the inner side of the external seat, thereby ensuring its assembly stability.

[0014] Preferably, the inner wall of the external seat is provided with a liquid tank which passes through from top to bottom, the top of the external seat is sleeved with a sealing plug, and the top side of the sleeve portion is provided with a liquid replenishing hole which matches the specification of the liquid tank;

[0015] The provision of the liquid tank and the liquid replenishing hole facilitates the replenishment of coolant therein to absorb the heat generated by friction.

[0016] Preferably, the graphite seat is provided with a liquid cavity which is annular and has an elliptical cross section, and the liquid cavity is connected with the liquid replenishing hole;

[0017] Among them, the liquid cavity can cooperate with the coolant inside it to absorb heat and ensure the suit effect.

[0018] Preferably, the liquid cavity is filled with cooling liquid.

[0019] Preferably, an external portion whose inner wall is tightly attached to the graphite seat is fixedly mounted on the front end of the sealing portion.

[0020] The utility model provides a gas-driven double-acting booster pump, which has the following beneficial effects:

[0021] The gas-driven double-acting booster pump can ensure the sealing performance of the pump during sliding by means of the external seat at the front side of the pump body and the graphite seat and the sealing seat inside the pump body, while the graphite seat can conduct the heat generated by the friction. Since the pump is made of graphite, the thermal conductivity can be ensured, and the friction part can be kept at a non-high temperature state. Meanwhile, the liquid cavity can absorb the heat by means of the coolant inside the liquid cavity, so that the graphite seat is always kept at a low temperature, thereby keeping the friction coefficient at a low value. This solves the problem that the existing sealing set components are prone to heat generation due to frequent sliding friction and thus affecting the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the external seat of the utility model;

[0024] Figure 3 This is a schematic diagram of the structure of the inner side of the graphite seat of the utility model;

[0025] Figure 4 It is a structural schematic diagram of the sealing seat of the utility model.

[0026] In the figure: 1. pump body; 2. pump shaft; 3. external seat; 4. graphite seat; 41. sleeve portion; 42. contact portion; 43. clamping portion; 44. liquid cavity; 45. liquid replenishing hole; 5. sealing seat; 51. sealing portion; 52. external portion. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4 The embodiment of the utility model provides a technical solution: a gas-driven double-acting booster pump, comprising a pump body 1 and a pump shaft 2 as an output shaft, and an external seat 3 slidingly sleeved on the pump shaft 2 is fixedly installed on the front side of the pump body 1; a graphite seat 4 and a sealing seat 5 are clamped on the inner side of the external seat 3, and a contact portion 42 whose inner wall is tightly attached to the outer wall of the pump shaft 2 is provided in the graphite seat 4, and a clamping portion 43 for clamping the sealing seat 5 is provided on the front side of the contact portion 42; the main body of the sealing seat 5 is a sealing portion 51 sealingly sleeved on the outer wall of the pump shaft 2, and the front end of the sealing portion 51 is fixedly installed with an external portion 52 whose inner wall is tightly attached to the graphite seat 4;

[0029] Among them, the gas-driven double-acting booster pump, through the arrangement of the external seat 3 on the front side of the pump body 1 and the graphite seat 4 and the sealing seat 5 on the inner side thereof, can utilize the sealing seat 5 to ensure its sealing during sliding, and the arrangement of the graphite seat 4 can conduct the heat generated by its friction. Since it is made of graphite material, the thermal conductivity can be guaranteed, and the friction part can be ensured to be in a non-high-temperature state. At the same time, the arrangement of the liquid cavity 44 can utilize the coolant inside it to absorb the heat, so that the graphite seat 4 is always in a low-temperature state, thereby making it always have a low friction coefficient value, solving the problem that the existing sealing set components are prone to heat generation due to frequent sliding friction and affecting the service life.

[0030] Embodiment 2:

[0031] The outer wall of the sealing portion 51 is glued to the clamping portion 43 on the inner side of the graphite seat 4; wherein, the setting of the sealing portion 51 can install it in the clamping portion 43, thereby ensuring its assembly stability, thereby simultaneously preventing the sealing seat 5 from falling off when the pump shaft 2 slides.

[0032] The graphite seat 4 is provided with a sleeve portion 41 located outside the contact portion 42, an annular sleeve groove is provided on the outer wall of the sleeve portion 41, and an annular clip matching the specifications of the annular sleeve groove is fixedly installed on the inner wall of the external seat 3; wherein, the shape of the sleeve portion 41 is convenient for it to be sleeved on the inner side of the external seat 3, thereby ensuring its assembly stability.

[0033] The inner wall of the external seat 3 is provided with a liquid tank which passes through from top to bottom, the top of the external seat 3 is provided with a sealing plug, and the top side of the sleeve portion 41 is provided with a liquid replenishing hole 45 which is compatible with the specifications of the liquid tank; wherein, the setting of the liquid tank and the liquid replenishing hole 45 facilitates the replenishment of coolant therein to absorb the heat generated by friction.

[0034] The graphite seat 4 is provided with a liquid cavity 44 which is annular and has an elliptical cross section, and the liquid cavity 44 is connected with the liquid replenishing hole 45; the liquid cavity 44 is filled with cooling liquid; wherein the liquid cavity 44 can cooperate with the cooling liquid inside thereof to absorb heat to ensure the suiting effect.

[0035] The working principle and use process of the utility model are as follows: when the device is required to work, the pump body 1 drives the pump shaft 2 to slide, and the sealing seat 5 and the graphite seat 4 on the inner side of the external seat 3 contact the outer wall of the pump shaft 2, and the sealing seat 5 ensures the sealing of the contact point, and the heat generated by the sliding is conducted by the graphite seat 4 and absorbed by the coolant in the inner liquid cavity 44 thereof, so as to ensure that the graphite seat 4 is always in a low friction coefficient state, ensure better heat conduction and subsequent heat dissipation, and ensure the service life.

[0036] 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 limited 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.

[0037] 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 gas-driven double-acting booster pump, comprising a pump body (1) and a pump shaft (2) as an output shaft, wherein an external seat (3) slidably mounted on the pump shaft (2) is fixedly mounted on the front side of the pump body (1); Features: A graphite seat (4) and a sealing seat (5) are clamped on the inner side of the external seat (3); a contact portion (42) whose inner wall is tightly attached to the outer wall of the pump shaft (2) is provided in the graphite seat (4); and a clamping portion (43) for clamping the sealing seat (5) is provided on the front side of the contact portion (42); The main body of the sealing seat (5) is a sealing portion (51) which is sealingly sleeved on the outer wall of the pump shaft (2).

2. A gas driven double acting booster pump according to claim 1, characterized in that: The outer wall of the sealing portion (51) is glued to the clamping portion (43) inside the graphite seat (4) by glue.

3. A gas driven double acting booster pump according to claim 1, characterized in that: The graphite seat (4) is provided with a sleeve portion (41) located outside the contact portion (42), an annular sleeve groove is provided on the outer wall of the sleeve portion (41), and an annular clip matching the specifications of the annular sleeve groove is fixedly installed on the inner wall of the external seat (3).

4. A gas driven double acting booster pump according to claim 1, characterized in that: The inner wall of the external seat (3) is provided with a liquid tank which passes through from top to bottom, the top of the external seat (3) is sleeved with a sealing plug, and the top side of the sleeve portion (41) is provided with a liquid replenishing hole (45) which matches the specifications of the liquid tank.

5. A gas driven double acting booster pump according to claim 4, characterized in that: The graphite seat (4) is provided with a liquid cavity (44) which is annular and has an elliptical cross section, and the liquid cavity (44) is connected to the liquid replenishing hole (45).

6. A gas driven double acting booster pump according to claim 5, characterized in that: The liquid chamber (44) is filled with cooling liquid.

7. A gas driven double acting booster pump according to claim 1, characterized in that: An external portion (52) whose inner wall is closely attached to the graphite seat (4) is fixedly mounted on the front end of the sealing portion (51).

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