CN215446057U

CN215446057U - Negative pressure drainage device for vacuum pump without stopping machine

Info

Publication number: CN215446057U
Application number: CN202120182277.6U
Authority: CN
Inventors: 曾志军; 王文明; 武泽法; 杨德新; 盖乐天
Original assignee: Zibo Vacuum Pump Factory Co ltd
Current assignee: Zibo Vacuum Pump Factory Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2022-01-07
Anticipated expiration: 2031-01-22

Abstract

The utility model discloses a non-stop negative pressure drainage device of a vacuum pump, which is characterized by comprising a vacuum buffer tank, a material receiving tank, a partition plate, a condenser, a QF1 normally-open valve and a QF2 normally-closed valve, wherein the partition plate is fixedly arranged in the vacuum buffer tank, the material receiving tank is arranged at the bottom of the vacuum buffer tank, one side of the vacuum buffer tank is provided with a QF1 normally-open valve in a penetrating manner, the other end of the QF1 normally-open valve is connected with the material receiving tank in a penetrating manner, one side of the material receiving tank is provided with a QF2 normally-closed valve in a penetrating manner, one side of the material receiving tank is fixedly provided with an LI liquid level transmitter, and the other side of the material receiving tank is fixedly provided with an LT liquid level meter.

Description

Negative pressure drainage device for vacuum pump without stopping machine

Technical Field

The utility model relates to the technical field of liquid discharge devices, in particular to a negative pressure liquid discharge device without stopping a vacuum pump.

Background

When the water ring vacuum unit works to suck condensable gas for recovery, the inlet buffer tank is required to be stopped and emptied to discharge when the negative pressure liquid is fully collected, so that the waste of working time and the loss of the vacuum pump to equipment due to frequent starting are caused. Most of the existing non-stop negative pressure discharge uses a filtrate pump, but the maximum negative pressure of the filtrate pump can reach 100mmhg, the use vacuum degree is lower, and the application range is narrow.

An effective solution to the problems in the related art has not been proposed yet.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a negative pressure drainage device without stopping a vacuum pump so as to solve the problems in the background technology.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a vacuum pump does not shut down negative pressure drain, includes vacuum buffer tank, material receiving tank, baffle, condenser, QF1 normally open valve and QF2 normally closed valve, the fixed baffle that is equipped with in vacuum buffer tank, vacuum buffer tank bottom is equipped with the material receiving tank, vacuum buffer tank one side is run through and is equipped with QF1 normally open valve, the QF1 normally open valve other end is received jar through connection with the material, material receiving tank one side is run through and is equipped with QF2 normally closed valve, the fixed LI liquid level changer that is equipped with in material receiving tank one side, the fixed LT level gauge that is equipped with of material receiving tank opposite side.

Further, the shape of the baffle is arc.

Furthermore, a vacuum pump is fixedly arranged at the top of the vacuum buffer tank.

Furthermore, a condenser is arranged at the bottom of the vacuum buffer tank in a penetrating manner.

Furthermore, a buffer tank drain valve is fixedly arranged at the bottom of the material receiving tank.

Compared with the prior art, the utility model has the following beneficial effects:

1. the utility model adopts the double-layer vertical buffer tank, the QF1 normally open valve is arranged, when the vacuum pump normally operates, liquid and gas are simultaneously sucked, the gas is pumped into the vacuum pump through the vacuum buffer tank, the liquid flows to the material receiving tank through the QF1 normally open valve, because the LI liquid level transmitter is arranged in the material receiving tank, the QF1 normally open valve can be automatically closed when the liquid level reaches the discharge height, the QF2 normally closed valve is opened, the buffer tank liquid discharge valve is opened after the vacuum degree is dissipated, automatic liquid discharge is realized, a centrifugal pump can be arranged in a liquid discharge pipeline, and the liquid is discharged into a tank to be collected.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a negative pressure drainage device without stopping a vacuum pump according to an embodiment of the utility model.

Reference numerals:

1. a vacuum buffer tank; 2. a material receiving tank; 3. a partition plate; 4. a buffer tank drain valve; 5. a vacuum pump; 6. a condenser; 7. QF1 normally open valve; 8. QF2 normally closed valve; 9. an LI liquid level transmitter; 10. an LT liquid level meter.

Detailed Description

The following, with reference to the drawings and the detailed description, further description of the present invention is made:

referring to fig. 1, the non-stop negative pressure drainage device for a vacuum pump according to an embodiment of the present invention is characterized by comprising a vacuum buffer tank 1, a material receiving tank 2, a partition plate 3, a condenser 6, a QF1 normally open valve 7 and a QF2 normally closed valve 8, wherein the partition plate 3 is fixedly disposed in the vacuum buffer tank 1, the material receiving tank 2 is disposed at the bottom of the vacuum buffer tank 1, the QF1 normally open valve 7 is disposed at one side of the vacuum buffer tank 1 in a penetrating manner, the other end of the QF1 normally open valve 7 is connected with the material receiving tank 2 in a penetrating manner, the QF2 normally closed valve 8 is disposed at one side of the material receiving tank 2 in a penetrating manner, an LI liquid level transmitter 9 is fixedly disposed at one side of the material receiving tank 2, and an LT liquid level meter 10 is fixedly disposed at the other side of the material receiving tank 2.

Specifically, the partition 3 is arc-shaped.

Specifically, a vacuum pump 5 is fixedly arranged at the top of the vacuum buffer tank 1.

Specifically, a condenser 6 is arranged at the top of the vacuum buffer tank 1 in a penetrating manner.

Specifically, a buffer tank drain valve 4 is fixedly arranged at the bottom of the material receiving tank 2.

According to the utility model, by adopting the double-layer vertical buffer tank and arranging the QF1 normally-opened valve 7, when the vacuum pump 5 normally operates, liquid and gas are simultaneously sucked, the gas is pumped into the vacuum pump 5 through the vacuum buffer tank 1, and the liquid flows to the material receiving tank 2 through the QF1 normally-opened valve 7, because the LI liquid level transmitter 9 is arranged in the material receiving tank 2, the QF1 normally-opened valve can be automatically closed when the liquid level reaches the discharge height, the QF2 normally-closed valve 8 is opened, and the buffer tank liquid discharge valve 4 is opened after the vacuum degree dissipates, so that automatic liquid discharge is realized, and a centrifugal pump can be arranged in a liquid discharge pipeline to discharge the liquid into a tank to be collected.

When the automatic liquid filtering pump is used, condensable gas is condensed into liquid after passing through the condenser 6, the partition plate 3 in the vacuum buffer tank 1 is arc-shaped, the liquid can flow to the edge, the QF1 normally-open valve 7 is in an open state, the liquid can flow into the material receiving tank 2 at the lower part through the QF1 normally-open valve 7, when the liquid level rises to a discharged liquid level, the LI liquid level transmitter 9 can control the QF1 normally-open valve 7 to be closed to realize the separation of the vacuum buffer tank 1 and the material receiving tank 2, the QF2 normally-closed valve 8 is opened to be emptied, the buffer tank liquid discharging valve 4 is opened to discharge the liquid after the emptying is finished, the LI liquid level transmitter 9 can automatically close the buffer tank liquid discharging valve 4 and the QF2 normally-closed valve 8 and then open the QF1 normally-open valve 7 to realize the next circulation, the cost is low, all functions of the liquid filtering pump can be completed only by three automatic valves, and the automatic liquid filtering pump can be used under high vacuum, the structure is simple, Convenient maintenance, few faults, power consumption saving and wide application range.

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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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; the terms "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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that various changes, modifications and substitutions can be made without departing from the spirit and scope of the utility model as defined by the appended claims. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a vacuum pump does not shut down negative pressure drain, its characterized in that, includes vacuum buffer tank (1), material receiving tank (2), baffle (3), condenser (6), QF1 normally open valve (7) and QF2 normally closed valve (8), vacuum buffer tank (1) internal fixation is equipped with baffle (3), vacuum buffer tank (1) bottom is equipped with material receiving tank (2), vacuum buffer tank (1) one side is run through and is equipped with QF1 normally open valve (7), QF1 normally open valve (7) other end and material receiving tank (2) through connection, material receiving tank (2) one side is run through and is equipped with QF2 normally closed valve (8), material receiving tank (2) one side is fixed and is equipped with LI liquid level transmitter (9), material receiving tank (2) opposite side is fixed and is equipped with LT liquid level meter (10).

2. A vacuum pump non-stop negative pressure drainage device according to claim 1, characterized in that the partition plate (3) is arc-shaped.

3. A vacuum pump non-stop negative pressure drainage device according to claim 1, characterized in that a vacuum pump (5) is fixedly arranged on the top of the vacuum buffer tank (1).

4. A vacuum pump non-stop negative pressure drainage device according to claim 1, characterized in that a condenser (6) is arranged at the top of the vacuum buffer tank (1) in a penetrating way.

5. A vacuum pump non-stop negative pressure drainage device according to claim 1, characterized in that a buffer tank drainage valve (4) is fixedly arranged at the bottom of the material receiving tank (2).