CN217462572U

CN217462572U - Visual pump priming system using methanol as working medium

Info

Publication number: CN217462572U
Application number: CN202122544567.3U
Authority: CN
Inventors: 王金辉; 郑国林; 孔建龙; 姚文涛; 牛健国; 池艳军; 王自发
Original assignee: Xinjiang Xinye Energy Chemical Co ltd
Current assignee: Xinjiang Xinye Energy Chemical Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-09-20
Anticipated expiration: 2031-10-22

Abstract

The utility model discloses an use visual pump priming system of methyl alcohol as working medium, including pump export manometer, valve I, valve II, check valve, export fluid-discharge tube, valve III, canned motor pump, valve IV, pump inlet pipe, valve V, sight glass, valve VI, bypass pipe, canned motor pump passes through the flange and is connected with the pump inlet pipe, is provided with valve IV on the pump inlet pipe, respectively is provided with valve III and valve V around the sight glass, and the bypass pipe is provided with valve V, and export fluid-discharge tube is provided with valve II and check valve, is provided with valve I before the pump export manometer, the utility model discloses a draw forth the visual airtight exhaust apparatus of bypass before pump export manometer, solve canned motor pump among the pump process frequently dismantle the manometer, the direct evacuation of toxic gas, can't observe the problem of the state of irritating the pump when irritating the pump.

Description

Visual pump priming system using methanol as working medium

Technical Field

The utility model relates to a canned pump system, concretely relates to use visual irritated pump system of methyl alcohol as working medium.

Background

The canned motor pump is a pump without additionally adding a sealing system from the outside, a pump impeller is completely immersed in a conveyed liquid, a canned motor pump adopts a conveying pump medium to lubricate and cool, most of the medium in an actual field belongs to a low-boiling-point and volatile medium, and the gaseous medium in the pump is not discharged out of the pump body before the pump is started, so that the lubricating and cooling effects are reduced during the operation of the pump, the temperature of a pump bearing is increased, the abrasion is serious, and the canned motor pump is damaged even when the condition is serious.

Therefore, the canned pump must be primed before starting, but in actual production it is common to remove the pump outlet pressure gauge and then prime the pump to vent residual gas from the pump. Methanol is a common chemical raw material in chemical production, belongs to a low-boiling-point and volatile medium and is toxic to people, when methanol is used as a conveying medium of a shield pump, toxic gas discharged by a pump filling can pollute surrounding air, and if workers do not protect the pump in place, the toxic gas can cause harm to bodies. In addition, frequent disassembly of the pressure gauge due to pump filling can cause breakage of the connecting piece for the gauge, and the service life of the equipment is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The defect of unable observed the pump priming state when dismantling manometer, toxic gas direct evacuation, pump priming frequently for solving current canned pump, the utility model aims to provide an use visual pump priming system of methyl alcohol as working medium.

In order to realize the purpose, the utility model adopts the following technical scheme: a visual pump priming system using methanol as a working medium comprises a pump outlet pressure gauge 1, a valve I2, a valve II 3, a check valve 4, an outlet drain pipe 5, a valve III 6, a shield pump 7, a valve IV 8, a pump inlet pipe 9, a valve V10, a sight glass 11, a valve VI 12 and a bypass pipe 13.

The canned motor pump 7 is connected with a pump inlet pipe 9 through a flange, and a valve IV 8 is arranged on the pump inlet pipe 9.

A valve III 6 and a valve VI 12 are respectively arranged in the front and the back of the sight glass 11 to adjust the pressure in the sight glass 11 and prevent the pressure in the sight glass 11 from being too high and cracked; the bypass pipe 13 is provided with a valve v 10.

Outlet fluid-discharge tube 5 is provided with valve II 3 and check valve 4, check valve 4 is the check valve, be provided with valve I2 before pump outlet manometer 1.

Compared with the prior patent, the utility model has the advantages of it is following.

1. The utility model relates to an use visual pump priming system of methyl alcohol as working medium, flowing back process control does not have the pollution that exhaust methyl alcohol caused the environment and other safety problems that arouse because of exhausting in a totally enclosed environment.

2. The utility model relates to an use visual pump priming system of methyl alcohol as working medium observes whole methyl alcohol exhaust state through sight glass 11, judgement canned motor pump 7 carminative degree that can be simple and convenient.

Drawings

Fig. 1 is the utility model relates to a use visual pump priming system of methyl alcohol as working medium.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, rather than all embodiments, and all other embodiments obtained by a person skilled in the art without creative work belong to the scope of protection of the present invention based on the embodiments of the present invention.

In the description of the present invention, it should be noted that the terms "top", "bottom", "one side", "the other side", "front", "back", "middle part", "inside", "top", "bottom", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of description and simplification of the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in figure 1, the utility model provides an use visual pump priming system of methyl alcohol as working medium, including pump export manometer 1, valve I2, valve II 3, check valve 4, export fluid-discharge tube 5, valve III 6, canned motor pump 7, valve IV 8, pump inlet pipe 9, valve V10, sight glass 11, valve VI 12, bypass pipe 13.

The canned motor pump 7 is connected with a pump inlet pipe 9 through a flange, and the pump inlet pipe 9 is provided with a valve IV 8.

A valve III 6 and a valve VI 12 are respectively arranged in front of and behind the sight glass 11 to adjust the pressure in the sight glass 11 and prevent the sight glass 11 from being broken due to overlarge pressure; the bypass pipe 13 is provided with a valve v 10.

The specific working process is as follows: when the pump needs to be pumped out and filled, firstly, the valve I2, the valve II 3 and the valve III 6 are confirmed to be in a closed state, and the valve VI 12 is opened, so that the pressure in the sight glass 11 is the same as the atmospheric pressure; opening a valve V10 and a valve IV 8 to start conveying pump filling working medium methanol, slightly opening a valve III 6 to slowly exhaust, and when the observation that methanol in the sight glass 11 overflows from a pipeline where the sight glass 11 is located to fill the pipeline, indicating that all gas in the shield pump 7 is exhausted; after the exhaust is finished, closing the valve III 6 to prevent the sight glass 11 from bearing pressure for a long time, and discharging working medium methanol in the sight glass 11 through a valve VI 12; and opening the valve I2 to ensure that the pressure of the pump outlet pressure gauge 1 is within a reasonable range, opening the valve II 3, closing the valve V10, conveying the methanol to the next working section, and finishing the pump filling process.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A visual pump priming system using methanol as a working medium comprises a pump outlet pressure gauge (1), a valve I (2), a valve II (3), a check valve (4), an outlet liquid discharge pipe (5), a valve III (6), a canned motor pump (7), a valve IV (8), a pump inlet pipe (9), a valve V (10), a sight glass (11), a valve VI (12) and a bypass pipe (13), it is characterized in that the shielding pump (7) is connected with a pump inlet pipe (9) through a flange, a valve IV (8) is arranged on the pump inlet pipe (9), the front and the back of the sight glass (11) are respectively provided with a valve III (6) and a valve VI (12), bypass pipe (13) are provided with valve V (10), export fluid-discharge tube (5) are provided with valve II (3) and check valve (4), pump outlet manometer (1) is preceding to be provided with valve I (2).

2. The visual pump priming system with methanol as a working medium of claim 1, wherein the check valve (4) is a one-way valve.