CN210464690U

CN210464690U - Electric feed pump preposition pump inlet in-situ thermometer

Info

Publication number: CN210464690U
Application number: CN201921110683.0U
Authority: CN
Inventors: 董加福
Original assignee: Inner Mongolia Jinghai Coal Gangue Power Generation Co Ltd
Current assignee: Inner Mongolia Jinghai Coal Gangue Power Generation Co Ltd
Priority date: 2019-07-16
Filing date: 2019-07-16
Publication date: 2020-05-05
Anticipated expiration: 2029-07-16

Abstract

The utility model discloses a leading pump entry thermometer in place of electronic feed pump, including inlet tube and connecting pipe, connecting pipe and inlet tube fixed connection, inlet tube surface top shape constant head tank, be fixed with the through-hole on the square constant head tank, mount pad one end is inserted in the through-hole and is stretched into in the inlet tube, the mount pad other end is fixed with the threaded sleeve, the fixed locating plate that is equipped with in the threaded sleeve outside. The utility model discloses a perfecting electronic water feed pump package design defect, having solved mechanical seal cooling water leakage problem, convenient online change can not influence the water-feeding pump operation, has reduced the water-feeding pump and has opened and stop the number of times, is favorable to unit safety and economy to stabilize the operation, and through independently designing the thermometer mount pad, the logical flow of mechanical seal water had both been considered in the design of thermometer mount pad, the material problem of equipment itself had been considered again, satisfy temperature measurement's representativeness, true simultaneously.

Description

Electric feed pump preposition pump inlet in-situ thermometer

Technical Field

The utility model relates to a gangue power generation technical field specifically is a leading pump entry thermometer in place of electronic feed pump.

Background

Coal gangue is a solid waste discharged in the coal mining process and the coal washing process, so that the power generation by utilizing the coal gangue is the same as the power generation by coal-fired thermal power, and the conventional thermal power plant generally adopts five systems, including a fuel system, a combustion system, a steam-water system, an electrical system and a control system, wherein the five systems supplement each other, and each system completes the work born by the system.

The fuel system is a system for conveying, storing and preparing fuel; a combustion system for completing the combustion process of the fuel and converting the chemical energy of the fuel into steam heat energy; the steam-water system is used for converting steam heat energy into mechanical energy; an electrical system for converting mechanical energy into electrical energy; a control system, a system for completing parameter measurement and automatic monitoring operation in the production process.

Wherein, the steam-water system is a very important system, generally adopt other auxiliary equipments such as steam turbine, condenser, deaerator, feed pump, cooling plant, etc., then need to guarantee the normal of the whole steam-water system, can guarantee the continuous operation of the whole power generation technology, but in the steam-water system the electric feed pump, in the course of using, the vibration is big, the thermometer is easy to be damaged, especially the electric feed pump preposed pump inlet local thermometer leaks or must stop the pump processing when the thermometer is bad, can't change the thermometer online, generally adopt six electric feed pumps totally 12 sealed cooling water local thermometers and 6 preposed pump inlet local thermometers, because the seal water valve is not tight and can't isolate in operation, the defect that the thermometer can't be changed is needed to stand by for a long time, when leaking, can only weld the thermometer on the seal water pipe to block the leak source, the thermometer cannot be detached, the water feeding pump is shut down due to water leakage of the thermometer at the inlet of the front pump, the unit is not favorable for safe and economic operation, and the normal operation of the whole power generation process is directly influenced. Therefore, the improvement is made, and the electric feed pump preposed pump inlet local thermometer is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the defects existing in the prior art, the utility model provides a preposed pump inlet local thermometer of an electric water supply pump.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a leading pump entry thermometer in place of electronic feed pump, including inlet tube and connecting pipe, connecting pipe and inlet tube fixed connection, inlet tube surface top shape constant head tank, be fixed with the through-hole on the square constant head tank, the mount pad has been inserted in the through-hole, mount pad one end is passed the through-hole and is stretched into in the inlet tube, the mount pad other end is fixed with the threaded sleeve, the fixed locating plate that is equipped with in the threaded sleeve outside, fixed connection between the bottom surface in locating plate bottom surface and the square constant head tank, it has the thermometer to insert in the mount pad, threaded connection has the lid on the thermometer, the fixed sealing washer that is equipped with on the top surface in the lid, lid and threaded sleeve spiro union.

As an optimized technical scheme of the utility model, the length and the width of square constant head tank are greater than the length and the width of locating plate respectively.

As an optimal technical scheme of the utility model, the mount pad adopts the stainless steel to make.

As an optimized technical scheme of the utility model, the mount pad is equipped with the sealing ring with the fixed sealing ring that is equipped with of inlet tube contact department.

As the utility model discloses a preferred technical scheme, be equipped with the notch cuttype counter bore in the mount pad, the counter bore sets up with the screw sleeve is coaxial, the notch cuttype response pole of thermometer inserts in the counter bore.

As an optimal technical scheme of the utility model, there is the screw thread on the notch cuttype response pole of thermometer, it is the same with the screw thread direction on the screw sleeve to have the screw thread on the notch cuttype response pole of thermometer.

The width of the internal thread area of the cover body is larger than the width of the external thread of the threaded sleeve.

The utility model has the advantages that: this kind of leading pump entry of electronic feed pump is thermometer on spot, perfect electronic feed pump group design defect, the sealed cooling water leakage problem of machinery has been solved, convenient online change can not influence the feed pump operation, it opens and stops the number of times to have reduced the feed pump, be favorable to unit safety and economy to stabilize the operation, and through independently designing the thermometer mount pad, the through flow volume of mechanical seal water had been considered in the design of thermometer mount pad, the material problem of equipment itself will be considered again, satisfy temperature measurement's representativeness simultaneously, the authenticity.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of a pre-pump inlet in-situ thermometer of an electric water supply pump of the present invention;

FIG. 2 is a schematic sectional view of the electric water pump with a pre-pump inlet thermometer;

fig. 3 is a schematic view of the installation structure of the electric feed pump preposed pump inlet local thermometer of the utility model.

In the figure: 1. a water inlet pipe; 2. a connecting pipe; 3. a square positioning groove; 4. a through hole; 5. a mounting seat; 6. a threaded sleeve; 7. positioning a plate; 8. a thermometer; 9. a cover body; 10. and (5) sealing rings.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Example (b): as shown in figures 1, 2 and 3, the utility model relates to an electric feed pump preposition pump inlet local thermometer, which comprises a water inlet pipe 1 and a connecting pipe 2, the connecting pipe 2 is fixedly connected with the water inlet pipe 1, a shape positioning groove 3 is arranged above the outer surface of the water inlet pipe 1, a through hole 4 is fixed on the square positioning groove 3, a mounting seat 5 is inserted in the through hole 4, one end of the mounting seat 5 passes through the through hole 4 and extends into the water inlet pipe 1, a threaded sleeve 6 is fixed at the other end of the mounting seat 5, a positioning plate 7 is fixed outside the threaded sleeve 6, the bottom surface of the positioning plate 7 is fixedly connected with the inner bottom surface of the square positioning groove 3, a thermometer 8 is inserted in the mounting seat 5, a cover body 9 is connected with the thermometer 8 by screw thread, a sealing ring 10 is fixed on the inner top surface of the cover body 9, the cover body 9 is in threaded connection with the threaded sleeve 6, the problem of mechanical seal cooling water leakage is solved, the convenient online change can not influence the water-feeding pump operation, has reduced the water-feeding pump and has stopped the number of times, is favorable to unit safety economy stable operation, and through independently designing the thermometer mount pad, the logical flow of mechanical seal water has not been considered in the design of thermometer mount pad, the material problem of equipment itself will be considered again, satisfies temperature measurement's representativeness, authenticity simultaneously.

Wherein, the length and the width of the square positioning groove 3 are respectively greater than the length and the width of the positioning plate 7, thereby enlarging the welding area and realizing effective fixation.

Wherein, mount pad 5 adopts stainless steel 304 to make, has guaranteed its corrosion resistance, improves life.

Wherein, the contact position of the mounting seat 5 and the water inlet pipe 1 is fixedly provided with a sealing ring.

Wherein, be equipped with the notch cuttype counter bore in the mount pad 5, the counter bore is with the coaxial setting of threaded sleeve 6, and the notch cuttype response pole of thermometer 8 is inserted in the counter bore, conveniently installs spacingly.

Wherein, have the screw thread on thermometer 8's the notch cuttype response pole and the screw thread direction on the threaded sleeve 6 the same, realize effectual location and compress tightly sealed.

Wherein, the width of the internal thread area of the cover body 9 is larger than the width of the external thread of the thread sleeve 6.

The working principle is as follows:

utilize locating plate 7 and square constant head tank 3 to weld for whole mount pad 5 inserts into inlet tube 1, because the length and the width of square constant head tank 3 are greater than the length and the width of locating plate 7 respectively, the increase of area welded like this, the effectual fixed effect that has improved has guaranteed the stability of mount pad 5 installation.

Then insert the notch cuttype response pole of thermometer 8 again in the notch cuttype counter bore on mount pad 5, and because the fixed sealing washer 10 that is equipped with on the top surface in the lid 9, lid 9 and the 6 spiro union of threaded sleeve, there is the screw thread on the notch cuttype response pole of thermometer 8, it is the same with the screw thread direction on the threaded sleeve 6 to have the screw thread on the notch cuttype response pole of thermometer 8, lid 9 internal thread district width is greater than the 6 external screw thread width of threaded sleeve, twist lid 9 like this, make lid 9 can extrude locating plate 7, thereby produce certain effort to locating plate 7, locating plate 7 connection stability has been guaranteed, utilize sealing washer 10 simultaneously, can guarantee the leakproofness.

After the installation is accomplished, if thermometer 8 damages, only need twist and move lid 9, then pull out thermometer 8 just can, need not stop the work of any equipment, mount pad 5 can play effectual sealed effect.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second", "third", "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby the features defined as "first", "second", "third", "fourth" may explicitly or implicitly include at least one such feature.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 an electronic feed pump preposition pump entry thermometer in place, includes inlet tube (1) and connecting pipe (2), connecting pipe (2) and inlet tube (1) fixed connection, its characterized in that, inlet tube (1) surface top shape constant head tank (3), be fixed with through-hole (4) on square constant head tank (3), mount pad (5) have been inserted in through-hole (4), mount pad (5) one end is passed through-hole (4) and is stretched into in inlet tube (1), mount pad (5) other end is fixed with threaded sleeve (6), threaded sleeve (6) outside is fixed and is equipped with locating plate (7), welding fixed connection between the bottom surface in locating plate (7) and square constant head tank (3), thermometer (8) have been inserted in mount pad (5), threaded connection has lid (9) on thermometer (8), and a sealing ring (10) is fixedly arranged on the inner top surface of the cover body (9), and the cover body (9) is in threaded connection with the threaded sleeve (6).

2. An electric feed pump pre-pump inlet in-situ thermometer as claimed in claim 1, characterized in that the length and width of the square positioning slot (3) are respectively greater than the length and width of the positioning plate (7).

3. An electric feed pump pre-pump inlet in-situ thermometer as claimed in claim 1, characterised in that said mounting seat (5) is made of stainless steel 304.

4. The electric feed pump preposition pump inlet on-site thermometer according to claim 1, characterized in that the contact part of the mounting seat (5) and the water inlet pipe (1) is fixedly provided with a sealing ring.

5. The electric feed pump preposition pump inlet in-situ thermometer as claimed in claim 1, characterized in that a stepped counter bore is arranged in the mounting seat (5), the counter bore is coaxial with the thread sleeve (6), and a stepped induction rod of the thermometer (8) is inserted into the counter bore.

6. An electric feed pump pre-pump inlet in-situ thermometer according to claim 5, characterized in that the stepped induction rod of said thermometer (8) is threaded, and the stepped induction rod of said thermometer (8) is threaded in the same direction as the thread of the threaded sleeve (6).

7. An electric feed pump pre-pump inlet in-situ thermometer as claimed in claim 1, characterised in that the width of the internal threaded zone of the cover (9) is greater than the width of the external thread of the threaded sleeve (6).