CN208125324U - A kind of connection structure of DC converter valve differential pressure indicator - Google Patents

Abstract

The utility model discloses a connection structure of a differential pressure gauge of a DC converter valve, and provides a connection structure of a differential pressure gauge of a DC converter valve which can effectively simplify operation. It includes a differential pressure gauge, a valve tower inlet pipe and a valve tower outlet pipe connected to the differential pressure gauge; a first valve group is provided at the connection between the differential pressure gauge and the valve tower water inlet pipe, and the first valve group includes a tee Pipe I, and the first valve, the second valve and the third valve respectively connected to the three ends of the three-way pipe I; the other end of the first valve is connected to the water inlet pipe of the valve tower, and the other end of the second valve is One end is connected to the differential pressure gauge; the connection between the differential pressure gauge and the outlet pipe of the valve tower is provided with a second valve group, the second valve group includes a three-way pipe II, and is respectively connected to the three ends of the three-way pipe II The fourth valve, the fifth valve and the sixth valve; the other end of the fourth valve is connected to the outlet pipe of the valve tower, and the other end of the fifth valve is connected to the differential pressure gauge. The utility model is suitable for installation and use of various DC converter valves.

Description

A connection structure of differential pressure gauge of DC converter valve

technical field

The utility model relates to the technical field of DC converter valves, in particular to a connection structure of DC converter valves.

Background technique

During the operation of the DC converter valve, a large amount of heat will be dissipated. The valve-cooled internal cooling water system realizes the exchange of heat and cold for the converter valve. When the valve-cooled internal cooling water enters and exits the cooling tower inlet and outlet of the valve, a valve tower differential pressure gauge is configured to monitor the pressure of the incoming and outgoing water. When the difference between the inlet and outlet water pressure is normal, it is judged that there is a leak in the water circuit inside the valve tower. At present, two branch water pipes are usually installed on the inlet and outlet main water pipes of the valve tower, which are directly connected to the body of the differential pressure gauge, so that the differential pressure gauge can monitor and compare the pressure of the inlet and outlet water, and generate a differential pressure value. In the existing connection mode, during the operation of the DC converter valve, the branch waterway cannot be closed to replace the faulty differential pressure gauge. When calibrating the differential pressure gauge every year, the calibrating instrument should be connected with the differential pressure gauge to simulate the pressure of the inlet and outlet water. The four-valve group of the flow station is equipped with a total of 24 differential pressure gauges, and the workload of disassembling and assembling branch water pipes is relatively large.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art, and provide a connection structure of a direct current converter valve with a convenient and efficient differential pressure gauge inspection operation.

In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

A connection structure for a differential pressure gauge of a DC converter valve, comprising a differential pressure gauge, a valve tower inlet pipe connected to the differential pressure gauge, and a valve tower outlet pipe; the connection between the differential pressure gauge and the valve tower inlet pipe is provided with a first A valve group, the first valve group includes a three-way pipe I, and a first valve, a second valve, and a third valve respectively connected to the three ends of the three-way pipe I; the other end of the first valve is connected to the valve The water inlet pipe of the tower is connected, and the other end of the second valve is connected with the differential pressure gauge; the connection between the differential pressure gauge and the outlet pipe of the valve tower is provided with a second valve group, and the second valve group includes a three-way pipe II, And the fourth valve, the fifth valve and the sixth valve respectively connected with the three ends of the three-way pipe II; the other end of the fourth valve is connected with the outlet pipe of the valve tower, and the other end of the fifth valve is connected with the pressure Poor table connection.

Preferably, the tee pipe I is a metal pipe or a plastic pipe.

Preferably, the tee pipe II is a metal pipe or a plastic pipe.

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

The utility model can greatly improve the detection efficiency of the differential pressure gauge, and can satisfy the use of various DC converter stations.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to these drawings without creative work.

Fig. 1 is the schematic diagram of the utility model.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

The connection structure of the DC converter valve differential pressure gauge shown in Figure 1 includes a differential pressure gauge 1, a valve tower inlet pipe 2 connected to the differential pressure gauge 1 and a valve tower outlet pipe 3; the differential pressure gauge 1 is connected to the valve tower The connection of the water inlet pipe 2 is provided with a first valve group, the first valve group includes a three-way pipe I4, and a first valve 5, a second valve 6 and a third valve respectively connected to the three ends of the three-way pipe I4 7. The other end of the first valve 5 is connected to the water inlet pipe 2 of the valve tower, and the other end of the second valve 6 is connected to the pressure difference gauge 1; the connection between the pressure difference gauge 1 and the valve tower outlet pipe 3 is set There is a second valve group, the second valve group includes a three-way pipe II8, and the fourth valve 9, the fifth valve 10 and the sixth valve 11 respectively connected to the three ends of the three-way pipe II8; The other end of the valve 9 is connected to the outlet pipe 3 of the valve tower, and the other end of the fifth valve 10 is connected to the differential pressure gauge 1 .

The tee pipe I4 can be a metal pipe or a plastic pipe.

The tee pipe II8 can be a metal pipe or a plastic pipe.

When working normally, the first valve, the second valve, the fourth valve and the fifth valve are opened, and the third valve and the sixth valve are closed. When replacing the differential pressure gauge, close the first valve, third valve, fourth valve and sixth valve. When calibrating the differential pressure gauge, close the first valve and the fourth valve, open the second valve, the third valve, the fifth valve and the sixth valve, and connect the water inlet and outlet pressure pipes of the calibrating instrument to the third valve, so as to realize the non-disassembly The calibration of the differential pressure gauge can be completed by installing the differential pressure gauge.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (3)

1. A connection structure for a differential pressure gauge of a DC converter valve, including a differential pressure gauge (1), a valve tower inlet pipe (2) and a valve tower outlet pipe (3) connected to the differential pressure gauge (1); its features That is: the connection between the differential pressure gauge (1) and the water inlet pipe (2) of the valve tower is provided with a first valve group, the first valve group includes a three-way pipe I (4), and is connected with the three-way pipe I ( 4) The first valve (5), the second valve (6) and the third valve (7) connected at the three ends; the other end of the first valve (5) is connected to the water inlet pipe (2) of the valve tower, The other end of the second valve (6) is connected to the differential pressure gauge (1); a second valve group is provided at the connection between the differential pressure gauge (1) and the outlet pipe (3) of the valve tower, and the second valve The set includes the tee pipe II (8), and the fourth valve (9), the fifth valve (10) and the sixth valve (11) respectively connected to the three ends of the tee pipe II (8); The other end of the four valves (9) is connected to the outlet pipe (3) of the valve tower, and the other end of the fifth valve (10) is connected to the differential pressure gauge (1). 2. The connection structure of the differential pressure gauge of the DC converter valve according to claim 1, wherein the tee pipe I (4) is a metal pipe or a plastic pipe. 3. The connection structure of the differential pressure gauge of the DC converter valve according to claim 1 or 2, characterized in that: the tee pipe II (8) is a metal pipe or a plastic pipe.