CN201876378U

CN201876378U - Integral temperature, pressure and flow measurement and sampling device

Info

Publication number: CN201876378U
Application number: CN201020642217XU
Authority: CN
Inventors: 陈义森; 郝玉振
Original assignee: Electric Power Research Institute of State Grid Shandong Electric Power Co Ltd
Current assignee: State Grid Corp of China SGCC; Electric Power Research Institute of State Grid Shandong Electric Power Co Ltd
Priority date: 2010-12-03
Filing date: 2010-12-03
Publication date: 2011-06-22
Anticipated expiration: 2020-12-03

Abstract

The utility model relates to an integral temperature, pressure and flow measurement and sampling device. The device can reduce the damage to a pipe wall caused by the too many measuring points installed on the pipe wall, so that the security is improved and the pipe life is prolonged. The integral sampling device lowers the requirements to measurement space during the measurement, and ensures that the measurement is easier to realize. A sampling probe is installed, fixed and positioned outside the pipe, so that the sampling measurement to minor caliber pipe is realized. The device comprises the sampling probe which is connected with a sampling barrel body through a connecting pipe. The sampling barrel body is hermetically connected with temperature, pressure and flow measurement components respectively.

Description

A kind of monoblock type temperature, pressure, flow measurement sampler

Technical field

The utility model relates to a kind of monoblock type temperature, pressure, flow measurement sampler.

Background technology

At present domestic have pressure, temperature survey integrative sampling device, but it has the defective of following two aspects: the one, can only measure static pressure and energy measurement total head not; The 2nd, the flow of energy measurement sampled fluid not can't be used in thermodynamic method is measured the efficiency test field of fluid machinery.

Present sampling probe takes the mode of inner and outer walls of pipeline clamping to fix, and needs the fluid in the emptying pipe in the time of fixedly, and installation personnel enters into pipe interior and fixes, and is then more loaded down with trivial details when needs are adjusted direction, wastes a large amount of manpowers and time; In addition, when caliber hour, then can't install internally, can't use.

The utility model content

The purpose of this utility model is to address the above problem, and a kind of monoblock type temperature, pressure, flow measurement sampler are provided, and it can reduce the destruction to tube wall that the installation measuring point too much causes on tube wall, thereby increases its security, prolongs pipeline life; When having dwindled measurement, the integrative sampling device, makes the easier realization of measurement to the requirement of measurement space.

For achieving the above object, the utility model adopts following technical scheme:

A kind of monoblock type temperature, pressure, flow measurement sampler, it comprises sampling probe, and sampling probe is connected with the sampling cylindrical shell by connecting pipe, and the sampling cylindrical shell then is tightly connected with temperature, pressure and flow measurement parts respectively.

Described sampling probe is fixed on the pipeline by pipe collar.

Described connecting tube is provided with ball valve.

Be respectively equipped with three internal thread pipe collars on the described sampling cylindrical shell, temperature, pressure and flow measurement parts the internal thread pipe collar by separately respectively are connected with sampler barrel.

Described pressure measurement unit comprises needle-valve, force pipe, the pressure unit that connects successively, and needle-valve is connected with the internal thread pipe collar.

Described temperature-measuring element is to be arranged on the temperature sleeve pipe that install sampling cylinder top center downwards.

Described flow measurement parts comprise needle-valve, force pipe, suspended body flowmeter, the drainpipe that connects successively, and needle-valve is connected with the internal thread pipe collar.

Described sampler barrel external body is provided with heat-insulation layer.

Main building block of the present utility model is: sampling probe, ball valve, sampling cylindrical shell, temperature sleeve pipe, pressure measurement unit, flow measurement parts, cylindrical shell heat-insulation layer and ball valve, seal etc.Sampling probe is fixed on the tube wall of pipeline, and an end is deep into pipe interior, and the other end links to each other with the sampling cylindrical shell through ball valve, and sampling cylinder top center is installed the temperature sleeve pipe downwards, can carry out temperature survey; Pressure and flow measurement web member are drawn in the perforate respectively of the bottom of sampler barrel body side surface and top, carry out the measurement of pressure and flow.Wherein pressure measurement unit comprises: needle-valve, force pipe, pressure unit etc., the flow measurement parts comprise: needle-valve, force pipe, suspended body flowmeter, drainpipe etc.

The utility model has been taked measuring the composite sampling mode of fluid, improve accuracy of test, simplified sampling equipment and system, minimizing to the destruction of trunk line, reduce fixing link and installing space, be convenient to flow to the adjustment that changes when surveying dynamic pressure the sampling nozzle direction, the measuring point centralized arrangement, help the debugging and the supervision of measurement mechanism, reduced operation easier.

The accurate positioning of this device sampling nozzle when the pipeline inner fluid flows to change, does not need to enter into the direction that pipe interior just can change the nozzle sampling eaily, and is easy for installation.When closing the ball valve of flow measurement part, can measure the total head of main flow part easily, in conjunction with static pressure measurement, can simple computation go out the flow velocity of measure portion, and then estimate pipeline flow.

The sampler inner fluid flows, and temperature measurement unit is near from the distance of trunk line, and cylindrical shell has outer insulation, guarantees thermometric accuracy.

By external flow measurement device, can measure the flow of sampling current, under the situation of measuring channel flow not, just can finish the efficiency test of equipment such as water pump/hydraulic turbine.

Sampling probe and stationary installation adopt fixedly pipe collar, realization accurate positioning and prevent the double action of popping one's head in and being rotated behind the fluid impact.

Connect with ball valve between sampling probe and the measurement cylindrical shell, under non-stop-machine situation, can remove sampling probe other measurement mechanism in addition.

The utility model has following actively useful effect:

By a perforate of trunk line, just can finish all measurements of pressure, temperature, flow, reduce destruction to trunk line, especially, can finish the measurement that other surveying instrument is difficult to finish in the limited place of measurement space; Can finish the not efficiency test of the equipment such as water pump/hydraulic turbine under the energy measurement situation of trunk line flow; Can be implemented on the less pipeline of caliber and use; The rectification sampler is easy to carry, on-the-spot demolition, installation simple and fast, and a large amount of human and material resources and time are saved in easy to adjust, the accurate positioning of sampling probe direction.

Description of drawings

Fig. 1 is an integral installation figure of the present utility model;

Fig. 2 is a sampling probe;

Fig. 3 is the sampling cylindrical shell;

Fig. 4 is a connecting pipe;

Fig. 5 is the internal thread pipe collar.

Wherein, 1. internal thread pipe collar, 2. sampling cylindrical shell, 3. connecting pipe, 4. ball valve, 5. sampling probe, 6. pipe collar, 7. pipeline, 8. heat-insulation layer.

Embodiment

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

In Fig. 1, sampling probe 5 is fixed on the pipeline 7 by pipe collar 6, is connected through ball valve 4, connecting pipe 3 and sampling cylindrical shell 2, and connecting pipe 3, internal thread pipe collar 1 all are welded on the sampling cylindrical shell 1.Be installed in the top of sampling cylindrical shell 1 with externally threaded integrated thermometric device, sampling cylindrical shell 1 right lower quadrant connects pressure measurement unit after by needle-valve, and the upper left quarter perforate is through connection traffic measurement mechanism behind the needle-valve.Temperature, pressure, flow measurement parts all have good Seal Design with sampling being connected of cylindrical shell 1.

Tangible perforate azimuth mark is arranged at sampling probe shown in Figure 2 and top, determines behind the installation position and can sampling probe be fixed on the tube wall by pipe collar 6 according to water (flow) direction.The design feature of this part is the orientation that can adjust the sampling probe perforate according to the variation of water (flow) direction easily, and comparatively significantly witness marker is arranged.

The purpose of design ball valve 4 is that sampling probe 5 and other measurement mechanism are isolated, if when comprising the problems such as measurement mechanism generation obstruction of the cylindrical shell 2 of take a sample, closes ball valve 4 can check and overhaul; After measurement is finished, when unit still is in running status, close ball valve 4 after, can just remove other measurement mechanism, and not influence operation.

The temperature survey sleeve pipe is installed in sampling cylindrical shell 2 centres, and the aperture position of flow measurement device is at its root, and water sample can flow through the temperature sleeve pipe more fully, has increased thermometric sensitivity; Heat-insulation layer 8 has all been designed at sampling cylindrical shell 2 and other position, prevents that water sample from following the external environment condition heat exchange, has so just improved thermometric accuracy.

When not needing to measure the flow of institute's water sampling, can close the needle-valve of flow measurement parts, institute's measuring pressure is the total head of pipeline 7 inner fluids like this, in conjunction with static pressure measurement, can probably calculate the flow of pipeline 7.

The utility model can be measured the flow of sampled fluid in gaging pressure and temperature.Sampling probe 5 and stationary installation adopt the draw-in groove location, realize accurate positioning and prevent the double action of popping one's head in and being rotated behind the fluid impact.Sampling probe 5 pipe external fixation modes have solved the problem of three aspects: do not need to enter in the pipe can install, small-bore pipeline also can use, do not need to drain tube fluid just can carry out the probe orientation adjustment.Sampler adds heat-insulation layer 8, and isolated external heat-exchanging improves accuracy of measurement.

Claims

1. An integral temperature, pressure, flow measurement sampling device, characterized in that it includes a sampling probe, the sampling probe is connected to the sampling cylinder through a connecting pipe, and the sampling cylinder is respectively sealed with temperature, pressure and flow measurement components .

2. Integral temperature, pressure, flow measurement sampling device as claimed in claim 1, is characterized in that, described sampling probe is fixed on the pipeline by pipe clamp, and sampling probe and fixing device adopt draw-in slot location, realize accurate positioning and The dual function of preventing the probe from rotating after being impacted by the fluid.

3. The integrated temperature, pressure and flow measurement sampling device according to claim 1, characterized in that, the sampling probe is installed and positioned outside the pipeline.

4. The integrated temperature, pressure and flow measurement sampling device as claimed in claim 1, wherein a ball valve is arranged on the connecting pipeline.

5. The integrated temperature, pressure and flow measurement sampling device as claimed in claim 1, characterized in that, the sampling cylinder body is respectively provided with three internally threaded pipe collars, and the temperature, pressure and flow measurement components pass through the respective The inner threaded pipe collar is connected with the sampling cylinder.

6. The integrated temperature, pressure and flow measurement sampling device as claimed in claim 1 or 4, characterized in that, the pressure measurement component comprises a needle valve, a pressure pipe, and a pressure transmitter connected in sequence, and the needle valve and the internal Threaded hose clamp connection.

7. The integrated temperature, pressure, and flow measurement sampling device according to claim 1 or 4, wherein the temperature measuring element is a temperature sleeve arranged at the center of the top end of the sampling cylinder and installed downward.

8. The integrated temperature, pressure and flow measurement sampling device as claimed in claim 1 or 4, characterized in that, the flow measurement components include sequentially connected needle valves, pressure pipes, float flowmeters, drain pipes, and needle valves. Connect with internally threaded pipe clamps.

9. The integral temperature, pressure and flow measurement sampling device according to claim 1, characterized in that, an insulating layer is provided outside the sampling cylinder.