Dropping type pressure transmitter

Abstract

The utility model discloses a throwing type pressure transmitter which comprises a pressure transmitter, a pressure guide pipe and a reducer pipe, the top end of the pressure guide pipe is connected with a core pipe of the pressure transmitter, the reducer pipe is connected to the bottom end of the pressure guide pipe, and the inner diameter of the reducer pipe is larger than that of the pressure guide pipe. The liquid level measuring device can effectively avoid liquid level measuring distortion caused by the fact that sediment and liquid crystals block the pressure tapping opening, and solves the technical problem that the liquid level value in the tank body cannot be accurately obtained due to the fact that the pressure tapping opening is blocked by the crystals.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure transmitter field, concretely relates to a kind of throwing type pressure transmitter. BACKGROUND

[0002] The main role of pressure transmitter is to transmit pressure signal to electronic equipment, and then display pressure on computer, and its principle is roughly as follows: the mechanical signal of water pressure is converted into electronic signal pressure (4-20) mA, and the size of voltage or current is linearly related, generally proportional relationship.Pressure transmitter is more used in pressure measurement field, which is medium-low gauge pressure transmitter, medium-high gauge pressure transmitter, absolute pressure transmitter and medium-low gauge single-flange diaphragm seal type transmitter.According to the different installation methods, pressure transmitter can be divided into two types: direct connection type installation and pressure guide pipe pressure installation, but it cannot effectively prevent the pressure distortion caused by crystallization at the pressure taking point.Diffused silicon pressure transmitter is suitable for measuring the pressure and liquid level of non-corrosive liquid and gas with 316L diaphragm, for example, 2088 pressure transmitter.The pressure sensitive core of pressure transmitter adopts high-performance silicon piezoresistive pressure oil-filled core, and the internal special integrated circuit converts sensor millivolt signal into standard long-distance transmission current signal, which can be directly connected with computer interface card, control instrument, intelligent instrument or PLC, etc.The series products are widely used in industrial process control, petroleum, chemical industry, metallurgy, etc.

[0003] In the production process of rare earth hydrometallurgy, a large number of tanks use single-flange pressure transmitter and radar transmitter, due to the stirring of the liquid in the tank, the water temperature and the chemical properties of the liquid are different in the production process, and crystallization phenomenon easily occurs in the tank, and under the action of stirring, the bottom pressure taking port of single-flange pressure transmitter is blocked, so that the single-flange liquid level is distorted, the detected liquid level is distorted, and the working state of the tank is misjudged and production accidents occur.

[0004] How to avoid the crystallization blockage of the bottom pressure taking port of pressure transmitter and obtain accurate liquid level value of tank is a technical problem to be solved at present. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of throwing type pressure transmitter, can effectively avoid that liquid level measurement is distorted due to that sediment and liquid crystallization blockage pressure taking port, solve the technical problem that liquid level value in tank cannot be accurately obtained due to pressure taking port crystallization blockage.

[0006] Technical scheme is as follows:

[0007] Throwing type pressure transmitter, comprising: pressure transmitter, pressure guide pipe, variable diameter pipe, the top end of pressure guide pipe is connected with the core pipe of pressure transmitter, variable diameter pipe is connected at the bottom end of pressure guide pipe, and the inner diameter of variable diameter pipe is greater than the inner diameter of pressure guide pipe.

[0008] Further, the core pipe is connected with a connecting end head, the connecting end head is provided with a control valve, and the top end of the pressure guide pipe is connected to the connecting end head.

[0009] Further, the connecting end head is connected with a fixing plate, and the end of the fixing plate is provided with a U-shaped bolt connected to the support frame.

[0010] Further, the inner diameter of the pressure guide pipe is 12 mm, and the inner diameter of the reducing pipe is 20 mm.

[0011] Further, the pressure transmitter is selected as a 2088 type transmitter.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe.

[0014] 2. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe.

[0015] 3. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe.

[0016] 4. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe.

[0017] 5. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe.

[0018] 5. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe.

[0019] 5. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe.

[0020] 5. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe. BRIEF DESCRIPTION OF DRAWINGS

[0021] 5. The utility model discloses a pressure guide pipe and a reducing pipe are arranged on the core pipe, the pressure guide pipe is connected with the reducing pipe, the reducing pipe is connected with the control valve, and the top end of the pressure guide pipe is connected with the reducing pipe.Figure 1 is a structure schematic diagram of the throw-in type pressure transmitter in the utility model. DETAILED DESCRIPTION

[0022] The following description fully illustrates specific embodiments of the utility model to enable one of ordinary skill in the art to practice and reproduce the same.

[0023] As Figure 1 shown, it is a structure schematic diagram of the throw-in type pressure transmitter in the utility model.

[0024] The throw-in type pressure transmitter comprises a pressure transmitter 1, a pressure guide pipe 2 and a variable diameter pipe 3, the top end of the pressure guide pipe 2 is connected with the core pipe 11 of the pressure transmitter 1, the variable diameter pipe 3 is connected at the bottom end of the pressure guide pipe 2, and the inner diameter of the variable diameter pipe 3 is greater than that of the pressure guide pipe 2.

[0025] In order to facilitate control, a connecting end 4 is connected on the core pipe 11, and the connecting end is provided with a control valve 41. The top end of the pressure guide pipe 2 is connected on the connecting end 4.

[0026] In order to facilitate on-site installation and fixation, the connecting end 4 is connected with a fixing plate 5, the end of the fixing plate is provided with a U-shaped bolt 6, and the U-shaped bolt 6 is connected on a support frame 7. The throw-in type pressure transmitter is fixed above the tank body.

[0027] The throw-in type pressure transmitter is installed above the tank body, the pressure transmitter 1 selects a 2088 type transmitter, the inner diameter of the pressure guide pipe 2 is 12 mm, the distance between the variable diameter pipe 3 and the bottom of the tank body is 35-40 cm, and the inner diameter of the variable diameter pipe 3 is 20 mm; the computer liquid level is not set to 0 point, is set according to the actual distance between the bottom of the tank body and the end of the variable diameter pipe 3, avoids that the material liquid deposits and blocks the variable diameter pipe 3, causes the measurement data to be distorted, and maintains the continuity of monitoring.

[0028] In the utility model, the pressure point of the pressure transmitter 1 does not contact the corrosive liquid, the liquid pressure in the tank body is transmitted to the air in the pressure guide pipe 2, air pressure is formed, the air pressure is transmitted to the pressure transmitter 1, is converted into liquid level, and the use of the utility model satisfies the chemical enterprises.

[0029] The application replaces the single-flange pressure transmitter, the pressure transmitter 1 is additionally provided with the pressure guide pipe 2 and the variable diameter pipe 3 to transmit pressure. The traditional single-flange pressure transmitter is generally installed at the bottom of the measured container, and in the material liquid that is easy to crystallize, the pipeline connected with the single flange is easy to form crystals, causes blockage, and leads to distortion of the single-flange pressure transmitter.

[0030] The terms used in the present utility model are illustrative and not restrictive. Since the present utility model can be embodied in various forms without departing from the spirit or essence of the technical solution, it should be understood that the above examples are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope of the appended claims, and therefore all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A drop-in pressure transmitter, characterized by, The utility model relates to a pressure transmitter, pressure guide pipe, variable diameter pipe, the top end of pressure guide pipe is connected with the core pipe of pressure transmitter, the variable diameter pipe is connected at the bottom end of pressure guide pipe, and the inner diameter of variable diameter pipe is larger than the inner diameter of pressure guide pipe. The core pipe is connected with a connecting end, the connecting end is provided with a control valve, and the top end of pressure guide pipe is connected with the connecting end.

2. The insertion pressure transmitter of claim 1 wherein, The connecting end is connected with a fixing plate, the end of fixing plate is provided with a U-shaped bolt, and the U-shaped bolt is connected with a support frame.

3. The insertion pressure transmitter of claim 2 wherein, The inner diameter of pressure guide pipe is 12mm, and the inner diameter of variable diameter pipe is 20mm.

4. The insertion pressure transmitter of claim 1 wherein, The pressure transmitter is selected as 2088 type transmitter.

5. The insertion pressure transmitter of claim 1 wherein, ​

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