CN219827167U - Automatic control device of vertical sewage pump in condensate pump pit - Google Patents
Automatic control device of vertical sewage pump in condensate pump pit Download PDFInfo
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- CN219827167U CN219827167U CN202222913033.8U CN202222913033U CN219827167U CN 219827167 U CN219827167 U CN 219827167U CN 202222913033 U CN202222913033 U CN 202222913033U CN 219827167 U CN219827167 U CN 219827167U
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- liquid level
- automatic control
- pump
- level meter
- control device
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- 239000010865 sewage Substances 0.000 title claims abstract description 25
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 230000003068 static effect Effects 0.000 claims abstract description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000000523 sample Substances 0.000 claims description 16
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 abstract description 4
- 238000010248 power generation Methods 0.000 abstract description 3
- 239000004568 cement Substances 0.000 abstract description 2
- 239000011521 glass Substances 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 102000001999 Transcription Factor Pit-1 Human genes 0.000 description 7
- 108010040742 Transcription Factor Pit-1 Proteins 0.000 description 7
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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- Control Of Non-Positive-Displacement Pumps (AREA)
Abstract
The utility model discloses an automatic control device of a vertical sewage pump in a condensed water pump pit, and particularly relates to the technical field of automatic control. According to the utility model, the cable throw-in type static difference liquid level meter with the gauge head is arranged in the condensate pump pit, so that the start and stop of the vertical sewage pump can be automatically controlled, the manpower is saved in the later maintenance, the control can be more accurately performed, the specific liquid level can be displayed on site in the detection process, and the liquid level can be displayed on a DCS picture, and the device can be applied to the automatic control of condensate pumps such as the waste heat power generation of a glass production line and the waste heat power generation of a cement production line.
Description
Technical Field
The utility model relates to the technical field of automatic control, in particular to an automatic control device of a vertical sewage pump in a condensate pump pit.
Background
When the waste heat power generation is designed by a plurality of domestic design houses, a vertical sewage pump is arranged in a condensate pump pit. However, no liquid level meter is arranged in a condensate pump pit in the prior art, and when the condensate pump is operated, the vertical sewage pump is manually started to drain sewage, because the condensate pump is operated all the time, water accumulation in the condensate pump pit is frequent, and a manual starting and stopping method is labor-consuming, and becomes gradually impractical and inconvenient under the background of times of higher and higher requirements on automatic control and intelligent control.
The above information disclosed in the background section is only for enhancement of understanding of the background of the disclosure and therefore it may include information that does not form the prior art that is already known to a person of ordinary skill in the art.
Disclosure of Invention
In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present utility model provides an automatic control device for a vertical sewage pump in a condensate pump pit, which achieves the purpose of automatically starting and stopping the vertical sewage pump by detecting the real-time liquid level height in the condensate pump pit, so as to solve the problems set forth in the above-mentioned background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an automatic control device of vertical dredge pump in condensate pump hole, includes the base surface of bearing and sets up in the condensate pump hole that bears the base surface top, the inside cable throw-in type static difference level gauge that is provided with of condensate pump hole, cable throw-in type static difference level gauge comprises the outside level gauge head that is located the condensate pump hole, the inside probe that is located the condensate pump hole and the connecting cable that connects level gauge head and probe, the fixed stand that is equipped with in base surface top that bears, the top of stand is provided with fixedly and is equipped with the mounting bracket, just the level gauge head is detachable and installs on the mounting bracket.
The technical scheme of the utility model is further defined as follows: the cable throw-in type static difference liquid level meter further comprises a protection pipe which is of a net-shaped structure, the probe is located inside the protection pipe, and the protection pipe is vertically arranged at the bottom of an inner cavity of the condensate pump pit.
The technical scheme of the utility model is further defined as follows: the cable throw-in type static difference liquid level meter is a two-wire system meter, and the power line and the signal line are the same cable.
The technical scheme of the utility model is further defined as follows: the cable throw-in type static difference liquid level meter is provided with a HART protocol and can transmit analog quantity signals to a DCS system.
The technical scheme of the utility model is further defined as follows: after the cable throw-in type static difference liquid level meter transmits the analog signal of the liquid level to the DCS, the DCS outputs a switching value DO signal after comparison operation, and the signal is used as a driving signal of the vertical sewage pump, so that the vertical sewage pump is started and stopped.
The utility model has the technical effects and advantages that:
1. according to the utility model, the cable throw-in type static difference liquid level meter with the gauge head is arranged in the condensed water pump pit, so that the start and stop of the vertical sewage pump can be automatically controlled, the labor is saved in the later maintenance, the control can be more accurately performed, the specific liquid level can be displayed on site in the detection process, and the liquid level can be displayed on a DCS picture;
2. the cable throw-in type static difference liquid level meter has the HART protocol, and a transmitter can be adjusted on site by using a manual operator;
3. the utility model can be applied to automatic control of the vertical sewage pump in the pit of the condensate pump for generating electricity by waste heat of the glass production line, the cement production line and the like.
Drawings
The accompanying drawings are included to provide a further understanding of the technical aspects of the utility model, and are incorporated in and constitute a part of this specification, and are included to illustrate and explain the utility model.
FIG. 1 is a schematic view of the installation of a cable drop-in level gauge of the present utility model in a condensate sump.
Fig. 2 is an illustration of the wiring and calibration of the electrical portion of the cable drop gauge of the present utility model.
FIG. 3 is a logic diagram of a control and regulation program in DCS software according to the present utility model.
The reference numerals are: 1 bearing base surface, 2 condensed water pump pit, 3 upright post, 4 mounting frame, 5 liquid level meter gauge head, 6 connecting cable, 7 probe, 8 protecting tube.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these example embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more example embodiments. In the following description, numerous specific details are provided to give a thorough understanding of example embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the aspects of the disclosure may be practiced without one or more of the specific details, or with other methods, components, steps, etc. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.
Example 1
Referring to fig. 1-2 of the specification, an automatic control device of a vertical sewage pump in a condensate pump pit according to an embodiment of the utility model comprises a bearing base surface 1 and a condensate pump pit 2 arranged at the top of the bearing base surface 1, wherein a cable input type static difference liquid level meter is arranged in the condensate pump pit 2 and consists of a liquid level meter gauge head 5 positioned outside the condensate pump pit 2, a probe 7 positioned in the condensate pump pit 2 and a connecting cable 6 for connecting the liquid level meter gauge head 5 and the probe 7.
The cable throw-in type static difference liquid level meter has the function of displaying the liquid level meter head 5 on site and can remotely transmit signals to the DCS; the gauge outfit 5 of the liquid level meter has a remote transmission function, can transmit the collected signals to the DCS, in addition, the cable throw-in type static difference liquid level meter is a two-wire system meter, a power line and a signal line are the same connecting cable 6, and a power supply of the 24VDC liquid level meter is led from the DCS through the cable and can be used as a cable for analog signal transmission.
When the device is in actual use, a detection signal is transmitted to the transmitter through the gas guide cable by utilizing the probe 7, and the measuring principle of the cable throw-in type static difference liquid level meter is that the static pressure of a certain point in liquid is in direct proportion to the distance from the point to the liquid level, and the liquid level formula is as follows: h=p/pg; specifically, H is the liquid level height, P is the pressure of the measured point, ρ is the medium density-is a constant, g is the gravitational acceleration-is a constant, so the position change from the measured point to the liquid level is only related to the measured pressure, and the transmitter converts the detected pressure signal into an electric signal of the liquid level and transmits the electric signal to the DCS remote control device through the connection cable 6, as shown in fig. 2.
Referring to figure 3 of the specification, after receiving the signal of the liquid level meter, the DCS can compile a control and regulation program and use the signal to control the on-off of the vertical sewage pump in the condensate pump pit 2; when the fluctuation range of the given liquid level value is between a and b, the sewage pump is started when the liquid level is higher than the upper limit value b, and the sewage pump is stopped when the liquid level is lower than the lower limit value a. In addition, an alarm signal can be set, and when the liquid level is higher than the highest normal liquid level value c, the alarm signal is sent out, and people need to check on site at the moment.
In this embodiment, bear the fixed stand 3 that is equipped with in base face 1 top, the top of stand 3 is provided with fixedly and is equipped with mounting bracket 4, and level gauge outfit 5 is detachable and installs on mounting bracket 4, can realize carrying out quick assembly disassembly to this cable input formula static difference level gauge, and it is convenient to maintain.
In the embodiment, the cable throw-in static difference liquid level meter is provided with the HART protocol, so that the transmitter can be conveniently calibrated on site by using the manual operator.
Example 2
Referring to fig. 1 of the specification, the automatic control device of the vertical sewage pump in the condensed water pump pit according to an embodiment of the utility model further comprises a protection tube 8 with a net structure, the probe 7 is positioned in the protection tube 8, and the protection tube 8 is vertically arranged at the bottom of the inner cavity of the condensed water pump pit 2.
It should be noted that, the probe 7 is a 304 stainless steel probe, and after the probe 7 is placed in the protecting tube 8, the probe 7 can be ensured to keep a vertical downward state, so that the detection precision can be greatly improved, and meanwhile, the protecting tube 8 is arranged into a net structure, so that water in the condensed water pump pit 2 can be filtered, and therefore, dirt in the water is reduced to be attached to the surface of the probe 7, and the detection precision is further improved.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
The last points to be described are: first, in the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;
secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;
finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (5)
1. The utility model provides an automatic control device of vertical dredge pump in condensate pump hole, includes and bears basal plane (1) and sets up in bearing the condensate pump hole (2) at basal plane (1) top, its characterized in that: the utility model discloses a condensate pump pit, including condensate pump pit (2), including base face (1), stand (3) are fixed to be equipped with on top of stand (3), the top of stand (3) is provided with fixedly and is equipped with mounting bracket (4), just level meter gauge head (5) are detachable install on mounting bracket (4) by being located condensate pump pit (2) outside level meter gauge head (5), be located condensate pump pit (2) inside probe (7) and connect connecting cable (6) of level meter gauge head (5) and probe (7).
2. The automatic control device of the vertical sewage pump in the condensed water pump pit according to claim 1, wherein: the cable throw-in type static difference liquid level meter further comprises a protection pipe (8) with a net-shaped structure, the probe (7) is located inside the protection pipe (8), and the protection pipe (8) is vertically arranged at the bottom of an inner cavity of the condensate pump pit (2).
3. The automatic control device of the vertical sewage pump in the condensed water pump pit according to claim 1, wherein: the cable throw-in type static difference liquid level meter is a two-wire system meter, and the power line and the signal line are the same cable.
4. The automatic control device of the vertical sewage pump in the condensed water pump pit according to claim 1, wherein: the cable throw-in type static difference liquid level meter is provided with a HART protocol and can transmit analog quantity signals to a DCS system.
5. The automatic control device of the vertical sewage pump in the condensed water pump pit according to claim 1, wherein: after the cable throw-in type static difference liquid level meter transmits the analog signal of the liquid level to the DCS, the DCS outputs a switching value DO signal after comparison operation, and the signal is used as a driving signal of the vertical sewage pump, so that the vertical sewage pump is started and stopped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222913033.8U CN219827167U (en) | 2022-11-02 | 2022-11-02 | Automatic control device of vertical sewage pump in condensate pump pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222913033.8U CN219827167U (en) | 2022-11-02 | 2022-11-02 | Automatic control device of vertical sewage pump in condensate pump pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827167U true CN219827167U (en) | 2023-10-13 |
Family
ID=88282764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222913033.8U Active CN219827167U (en) | 2022-11-02 | 2022-11-02 | Automatic control device of vertical sewage pump in condensate pump pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827167U (en) |
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2022
- 2022-11-02 CN CN202222913033.8U patent/CN219827167U/en active Active
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