Low-leakage-risk waste liquid storage tank feeding device

Abstract

A low-leakage-risk waste liquid storage tank feeding device is characterized by comprising a feeding tank, a liquid pumping pipe, a plug reciprocating pump, a stop valve, a feeding pipe and the like, the feeding tank is connected with the plug reciprocating pump through the liquid pumping pipe, the stop valve is installed on the liquid pumping pipe, the plug reciprocating pump is connected with the feeding pipe through a connecting pipe, and the plug reciprocating pump is connected with the feeding pipe through the connecting pipe. The feeding pipe and the liquid pumping pipe are connected through a branch pipe, a pressure safety valve and a back pressure valve are installed on the branch pipe, a one-way valve is installed on the connecting pipe, and a pressure gauge is installed on the feeding pipe. The utility model solves the problem of liquid leakage caused by loosening of a switch valve in a supply mode of directly controlling a pipeline through the switch valve.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding devices, in particular to a feeding device for a waste liquid storage tank with low leakage risk. Background Art

[0002] Because the waste liquid feeding pump in the incineration tank area often leaks during the production process, horizontal centrifugal pumps and switch valves are currently used. After years of use, the switch valve may become loose and leak, and there are major safety hazards in the process of waste liquid pumping. Therefore, it is very necessary to propose a low leakage risk waste liquid storage tank feeding device. Utility Model Content

[0003] In response to the above technical problems, the utility model provides a low leakage risk waste liquid storage tank feeding device, which is characterized in that it includes a feeding tank, a liquid extraction pipe, an embolic reciprocating pump, a stop valve, a feeding pipe, a branch pipe, a connecting pipe, a pressure safety valve, a back pressure valve, a one-way valve, and a pressure gauge. The feeding tank and the embolic reciprocating pump are connected by a liquid extraction pipe, and the liquid extraction pipe is equipped with a stop valve. The embolic reciprocating pump and the feeding pipe are connected by a connecting pipe. The feeding pipe and the liquid extraction pipe are connected by a branch pipe, and the branch pipe is equipped with a pressure safety valve and a back pressure valve. The connecting pipe is equipped with a one-way valve, and the feeding pipe is equipped with a pressure gauge.

[0004] Beneficial effects of the utility model:

[0005] The utility model adopts a plunger reciprocating pump, which extracts liquid from the feed tank through the liquid extraction pipe through the plunger reciprocating pump, and then flows to the feed pipe through the connecting pipe and the one-way valve, solving the problem of the supply method of directly controlling the pipeline through the switch valve, which has the problem of the switch valve loosening and causing the supply liquid to leak. The utility model adopts a pressure safety valve and a back pressure valve as double insurance, which can ensure the safe operation of the equipment due to the hidden dangers caused by the pressure when using the plunger reciprocating pump. The utility model has no requirements for the medium in the storage tank and can meet the liquid pumping work of poor media. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] Figure 1 This is a schematic diagram of the overall structure of a low leakage risk waste liquid storage tank feeding device of the utility model;

[0007] As shown in the figure: 1. Feed tank, 2. Liquid extraction pipe, 3. Reciprocating piston pump, 4. Stop valve, 5. Feed pipe, 6. Branch pipe, 7. Connecting pipe, 8. Pressure safety valve, 9. Back pressure valve, 10. Check valve, 11. Pressure gauge. DETAILED DESCRIPTION

[0008] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0009] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0010] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0011] Example 1

[0012] As shown in the figure, a feeding device for a waste liquid storage tank with low leakage risk is characterized in that it includes a feeding tank 1, a liquid extraction pipe 2, an embolic reciprocating pump 3, a stop valve 4, a feeding pipe 5, a branch pipe 6, a connecting pipe 7, a pressure safety valve 8, a back pressure valve 9, a one-way valve 10, and a pressure gauge 11. The feeding tank 1 and the embolic reciprocating pump 3 are connected through the liquid extraction pipe 2, and the stop valve 4 is installed on the liquid extraction pipe 2. The embolic reciprocating pump 3 and the feeding pipe 5 are connected through the connecting pipe 7. The feeding pipe 5 and the liquid extraction pipe 2 are connected through the branch pipe 6, and the pressure safety valve 8 and the back pressure valve 9 are installed on the branch pipe 6. The connecting pipe 7 is installed with a one-way valve 10, and the feeding pipe 5 is installed with a pressure gauge 11.

[0013] Example 2

[0014] When the utility model is used, the piston reciprocating pump 3 is drawn out from the feed tank 1 through the liquid extraction pipe 2, and then flows to the feed pipe 5 through the connecting pipe 7 and the one-way valve 10. Since the valve closing pressure of the piston reciprocating pump 3 is very large, a pressure gauge 11 is installed on the feed pipe 5, which can be set to stop the operation of the piston reciprocating pump 3 when the system pressure exceeds ≥1 MPa. When the pressure exceeds the pressure setting red line, the pressure safety valve 8 is tripped, causing backflow to the feed tank 1.

[0015] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A low leakage risk waste liquid storage tank feeding device, characterized in that It includes a feeding tank, a liquid extraction pipe, an embolic reciprocating pump, a stop valve, a feeding pipe, a branch pipe, a connecting pipe, a pressure safety valve, a back pressure valve, a one-way valve and a pressure gauge. The feeding tank and the embolic reciprocating pump are connected by a liquid extraction pipe, and the liquid extraction pipe is equipped with a stop valve. The embolic reciprocating pump and the feeding pipe are connected by a connecting pipe, and the feeding pipe and the liquid extraction pipe are connected by a branch pipe, and the branch pipe is equipped with a pressure safety valve and a back pressure valve. The connecting pipe is equipped with a one-way valve, and the feeding pipe is equipped with a pressure gauge.

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